KR102195116B1 - Apparatus for processing food waste - Google Patents

Abstract

Disclosed in the present invention is a food waste processing device, which processes domestic food waste by crushing and drying the same. To this end, the food waste processing device according to the present invention comprises a driving unit, a compression unit and a drying unit. The compression unit comprises a compression screw and a compression unit housing. The compression unit housing comprises: an introduction section (A) in which crushed solid matter is introduced; a first compression section (B) firstly compressing the solid matter which has passed the introduction section (A) to separate wastewater; a second compression section (C) secondly compressing the solid matter which has passed the first compression section (B) to separate wastewater; a first wastewater moving groove unit guiding the wastewater separated from the solid matter in the introduction section (A); a second wastewater moving groove unit guiding the wastewater separated from the solid matter in the first compression section (B) and connected to the first wastewater moving groove unit; and a third wastewater moving groove unit guiding the wastewater separated from the solid matter in the second compression section (C) and connected to the second wastewater moving groove unit. Therefore, the wastewater can be smoothly discharged.

Description

Food waste disposal device {Apparatus for processing food waste}

The present invention relates to a food waste treatment apparatus for crushing, compressing and drying food waste from a household.

In general, household waste is continuously discharged. These food wastes are separated and disposed of in bags exclusively for food waste. The food waste discharged in this way has a disadvantage in that it is collected until it reaches a certain amount or that an odor is generated in the process of being discharged.

In order to improve such disadvantages, kitchen waste grinders have been developed in which food waste is crushed, dehydrated by compression, and then dried and discharged. In such a kitchen waste grinder, the drying time required to dry the food waste takes up most of the time for processing the entire food waste. Therefore, it is necessary to shorten the drying time in order to shorten the total processing time of food waste. As a method of shortening the drying time of the kitchen waste grinder, the drying time can be shortened by increasing the dehydration rate of wastewater by compressing food waste as much as possible and drying the dehydrated food waste.

On the other hand, the kitchen waste grinder of the pulverization and collection method can be used legally in general households only after obtaining the certificate of the kitchen waste grinder issued by the Korea Water Technology Certification Institute. In order to receive such a certificate, the consumer must be able to recover at least 80% of the food waste solids.

In addition, in order to cope with policy changes, socio-economic changes and technological changes according to environmental protection, household food waste is crushed first by using a crushing cutter, and solids of food waste are compressed using a compression device with improved compression performance. It is necessary to develop an eco-friendly crushed-drying recovery type food waste treatment machine that satisfies environmental certification regulations by establishing a system capable of recovering more than% and drying with natural wind.

In addition, since the kitchen waste grinder is normally installed and used at the outlet of the sink, it must have smooth operation and durability. In addition, since the kitchen waste grinder is installed in a narrow space under the sink, there is a limitation in installation space, so it is necessary to manufacture it compactly. Conventional kitchen waste grinders do not have the above-mentioned conditions at the same time, so there is a problem in that product quality and marketability are deteriorated.

Accordingly, the present invention has been proposed to solve the above problems, and an object of the present invention is to increase dehydration efficiency by crushing food waste and compressing the crushed solids in a compression unit with improved compression performance. It is to provide a food waste disposal device that satisfies the relevant laws and regulations by smoothly discharging sewage and recovering only solids.

In addition, the present invention is to provide a food waste disposal apparatus that improves quality and marketability by shortening the drying time of the pressed solid food waste.

In addition, the present invention is to provide a compact food waste disposal apparatus to be easily installed under the sink.

In order to achieve the object of the present invention as described above, the present invention provides a frame, a driving unit installed in the frame, a crushing unit for crushing food waste by receiving a driving source of the driving unit, and compressing the food waste crushed in the crushing unit. Comprising a compression unit, and a drying unit for drying the solids compressed in the compression unit,

The crimping unit includes a crimping screw for compressing the crushed solid material by receiving a driving force of the driving unit, and a crimping unit housing disposed while surrounding the crimping screw,

The compression unit housing includes an inlet section (A) through which crushed solids are introduced, a first compression section (B) for separating waste water by first pressing the solid material passing through the inlet section (A), and the first compression section ( It includes a second compression section (C) for separating sewage by secondary compression of the solid material that has passed B),

A first sewage moving groove for guiding the sewage separated from the solid material in the inlet section (A), a second sewage moving groove that guides the sewage separated from the solid material in the first pressing section (B) and connected to the first sewage moving groove A moving groove, and a third sewage moving groove that guides sewage separated from the solid in the second compression section (C) and is connected to the second sewage moving groove,

The crimping part housing is inclined in a circumferential direction to the inner surface of the crimping part housing in the first crimping section (B), and a first inclined surface on which a second sewage moving groove is formed, and from the first inclined surface toward the screw blade of the crimping screw. A food waste disposal apparatus comprising a crushing blade portion for cutting the solid material that is protruding and compressed, and a second inclined surface extending from the crushing blade in a direction opposite to the first inclined surface and having a larger slope than the slope of the first inclined surface. to provide.

It is preferable that the third sewage moving groove part is formed of a groove inclined along the longitudinal direction of the shaft on the bottom surface of the compression part housing and is connected to the second sewage moving groove part.

It is preferable to maintain a gap between the crushing blade and the screw blade through which sewage separated from the solid material passes in the first pressing section.

It is preferable that a stopper is formed in the second pressing section (C) to limit the movement of the solid matter in the rotational direction along the length direction between the third sewage moving grooves.

The crimping part is a crimping part case, a crimping screw disposed inside the crushed food waste to compress the crushed food waste, a screw tip fixing member penetrating the crimping screw and inserted into the crimping part case, and fixing the screw tip A seal that is fixed to the member and at the same time is in close contact with the tip of the compression screw to discharge the compressed solid and blocks sewage, and a seal that is coupled to the compression unit case and presses the seal in a direction parallel to the axis to fix the seal Includes absence,

The sealing is supported by the screw tip fixing member in a direction parallel to the axis of the crimping screw, and the thickness of the portion coupled to the screw tip fixing member in a radial direction with respect to the axis of the crimping screw is 1.5 compared to the thickness of the portion connected to the screw tip fixing member. It is preferable to consist of more than twice.

The crimping screw includes a screw rotation shaft and a screw blade formed on the outer circumferential surface of the screw rotation shaft, and is formed on both sides of the screw blade and cut in the axial direction, and a first volume control part having different areas of cross-sections. It is preferable to have a second volume control unit.

The present invention increases the recovery amount of solids with improved dehydration rate by forming sewage moving grooves in the compression unit housing to move the wastewater separated from the solids to separate and move the solids and the wastewater in the process of compressing the solids. Therefore, it is possible to improve the processing efficiency of food waste while satisfying the relevant laws and regulations of the food waste disposal system.

In addition, the present invention minimizes the drying time by improving the sealing structure at the tip of the pressing screw to collect solids with improved dehydration rate by passing only the separated solids from wastewater, and to reduce the processing time of the entire food waste due to shortening the drying time. It works.

In addition, the present invention has a first compression space portion and a second compression space portion in which the crushed material is compressed from the compression screw, and the first compression space portion and the second compression space portion are configured to have different volumes to have different dehydration rates. The food waste is compressed and moved to the drying unit, and the moisture remaining in the drying unit is diffused to a relatively large amount of solids so that the moisture is rapidly evaporated, thereby shortening the drying time and improving the treatment efficiency, thereby increasing the marketability.

The present invention uses a DC motor and a planetary gear reducer to increase the torque even in a small size to improve operation performance and stability, as well as to make it compact, so it is easy to install in a narrow space such as a lower space of a sink.

1 is a perspective view showing a main part of a food waste disposal apparatus for explaining a first embodiment of the present invention.
2 is a perspective view showing a main part of the food waste disposal apparatus from a different angle in order to explain the first embodiment of the present invention.
3 is an exploded perspective view showing the main part of the food waste disposal apparatus in order to explain the first embodiment of the present invention.
4 is a view of a main part of a food waste disposal apparatus cut in a direction parallel to an axis to illustrate the first embodiment of the present invention.
5 is a cross-sectional view of a crimping portion cut in a direction parallel to an axis in order to explain the first embodiment of the present invention.
6 is a view showing a crimping screw to explain the first embodiment of the present invention.
7 is a view for explaining a volume change structure between the screw blades of the first embodiment of the present invention.
8 is a view showing the inside of the compression unit housing for explaining the first embodiment of the present invention.
9 is a view showing the inside of the compression unit housing from a different angle to describe the first embodiment of the present invention.
10 is a view showing the inside of the screw tip fixing member for explaining the first embodiment of the present invention.
11 is a cross-sectional view of a crimping screw and a distal end portion of a crimping unit housing cut in a direction parallel to an axis to illustrate the first embodiment of the present invention.
12 is a view showing the shape of the sealing to explain the first embodiment of the present invention.
13 is a side view showing a pressing portion for explaining the first embodiment of the present invention.
FIG. 14 is a cross-sectional view taken along a part aa of FIG. 13.
15 is a cross-sectional view taken along the bb portion of FIG. 13.
FIG. 16 is a cross-sectional view of a section cc of FIG. 13 cut away.
17 is a view for explaining the operation process in the first compression section section of the first embodiment of the present invention.
18 is a view for explaining the operation process in the second compression section section of the first embodiment of the present invention.
19 is a diagram for explaining a second embodiment of the present invention.
20 is a diagram for explaining a third embodiment of the present invention.
21 is a view for explaining a fourth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and the same reference numerals are assigned to the same or similar components throughout the specification.

1 to 4 are views showing main parts for explaining the first embodiment of the present invention, and show a food waste disposal apparatus.

The food waste disposal apparatus of the first embodiment of the present invention includes a frame 1, a drive part 3, a crushing part 5, a pressing part 7, and a drying part 9.

The frame 1 may be made of a metal plate, and the driving part 3, the crushing part 5, and the pressing part 7 are combined. The power transmission gears of the driving unit 3 are coupled to the frame 1 to transmit the driving force of the driving unit 3 to the crushing unit 5 and the pressing unit 7 respectively.

The drive unit 3 includes a DC motor 301 and a planetary gear reducer 303, as shown in FIG. 2. In addition, the drive unit 3 includes power transmission gears, and the power transmission gears include a motor drive gear 305, a first cutter driving and transmission gear 307, a first cutter driving gear 309, and a second cutter driving gear (311) And may be made of a crimping screw drive gear (313). The DC motor 301 and the planetary gear reducer 303 may be integrally formed and are coupled to one side of the frame 1. The DC motor 301 used in the first embodiment of the present invention has the advantage of being easy to control. In addition, as the planetary gear reducer 303 used in the first embodiment of the present invention, not only a relatively small size can be used, but also a small size can increase torque.

As described above, when the planetary gear reducer 303 used in the first embodiment of the present invention is applied, it is possible to increase the torque and reduce the size compared to the conventional general gear-type reducer, thereby increasing design freedom and food waste disposal device. Can be manufactured compactly.

The planetary gear reducer 303 used in the first embodiment of the present invention is small in size and can generate a high torque, thereby improving crushing and pressing performance compared to the conventional food waste disposal apparatus. The planetary gear reducer 303 may transmit a high torque driving force to the crushing portion 5 and the crimping portion 7 through power transmission gears coupled to the frame 1. When a driving force of high torque is transmitted to the crushing portion 5 and the pressing portion 7, the hard food waste can be easily crushed, thereby increasing treatment efficiency, as well as reducing breakdowns, and improving durability. In addition, the present invention is advantageous in rapidly drying solids by improving dehydration efficiency since the compression screw 701 applied to the compression portion 7 can exert a large force.

On the other hand, the first cutter driving gear 309 and the second cutter driving gear 311 of the driving unit 3 have different diameters or different gear teeth arranged to form the first crushing cutter assembly 501 and the second crushing cutter assembly. It is desirable to make the rotation of 503 different from each other. In the first embodiment of the present invention, the crushing effect can be maximized by allowing the first cutter driving gear 309 and the second cutter driving gear 311 to have different rotational speeds.

The crushing unit 5 serves to finely crush the food waste delivered through the hopper 19. The crushing unit 5 is driven by a motor drive gear 305 of the driving unit 3, a first cutter driving and transmission gear 307, a first cutter driving gear 309, and a second cutter driving gear 311. It can be delivered and shredded food waste.

On the other hand, the housing 11 includes a crushing unit housing 11a constituting the crushing unit 5 and a pressing unit housing 11b constituting the pressing unit 7 (see FIG. 4 ). The crushing unit housing 11a and the pressing unit housing 11b may be integrally molded.

The crimping part 7 includes a crimping part housing 11b and a crimping screw 701. The crimping screw 701 is coupled to the frame 1 and receives the driving force through the motor drive gear 305 of the driving unit 3, the first cutter driving and transmission gear 307, and the crimping screw driving gear 313. It is driven.

The pressing screw 701 includes a screw rotation shaft 701a and a screw blade 701b (see FIGS. 5 and 6). As shown in FIG. 6, the screw rotation shaft 701a is formed in a cylindrical shape in the section A and section B, which are constant in the direction of the front end of the frame 1, and a partial section C facing the end in the cylindrical section A and section B. Consists of a tapered shape. Further, the screw rotation shaft 701a has a cylindrical shape in which the section D is smaller than the diameters of the sections A and B.

5 and 6, section A is an inflow section into which food waste crushed in the crushing unit 5 flows, and section B is the primary compression in which the crushed food waste is first squeezed to separate solids and wastewater. It is a section, and section C is a secondary compression section in which the solids compressed in the first time are further compressed secondarily, so that the solids and wastewater are completely separated, and section D is the outer circumferential surface of the screw rotating shaft 701a and the sealing 705 It is a discharge section that is discharged between the inner circumferential surfaces of ).

In addition, the screw blade 701b is formed in a radial direction while forming a gap a1 on the outer peripheral surface of the screw rotation shaft 701a. The screw blade 701b rotates on the inner circumferential surface of the pressing unit housing 11b and compresses the food waste crushed in the crushing unit 5 to separate solids and wastewater.

The spacing a1 of the screw blade 701b of the first embodiment of the present invention may be kept constant. The screw blade 701b is formed on the screw rotation shaft 701a while forming a spiral.

And the crimping screw 701 of the first embodiment of the present invention, as shown in Figure 6, between the screw blade 701b and another adjacent screw blade 701b, a narrow portion 702a and an extended portion 702b ). The narrow portion 702a and the extended portion 702b have different intervals along the outer circumferential surface of the screw rotation shaft 701a in the portion forming between the screw blade 701b and another adjacent screw blade 701b ( 6). The narrow portion 702a and the extended portion 702b may be formed between the screw blades 701b in the first pressing section (B) and the second pressing section (C). As such, the narrow portion 702a and the extended portion 702b move while repeatedly changing the volume of the solid compressed in the first compression section B to improve the compression performance, thereby maximizing the dehydration rate of the solid.

On the other hand, in the first embodiment of the present invention, the volume of the space portion 701c formed by the screw blades 701b adjacent to each other and another space portion 701d adjacent to the space portion 701c are formed differently. These space portions 701c and 701d are portions in which food waste to be compressed is accommodated.

The first embodiment of the present invention can maximize the compression effect by repeating expansion and compression so that the density due to compression of the crushed food waste is changed when the crushed food waste is compressed while the pressing screw 701 rotates. .

FIG. 7 is a schematic diagram of a part of a crimping screw to explain an example in which the volume of the space part 701c and another space part 701d adjacent thereto are configured differently according to the first embodiment of the present invention.

Referring to FIG. 7, when a virtual line is drawn in a direction parallel to the axis at a certain point on the outer circumferential surface of the screw rotation shaft 701a, a space part 701c and another space part 701d adjacent to the space part 701c It shows an example of configuring different volumes. In the first embodiment of the present invention, a first volume control part 701e and a second volume control part 701f are formed at a portion located in the space part 701c between the screw blades 701b.

The first volume control part 701e and the second volume control part 701f are formed at a portion where the screw blade 701b and the screw rotation shaft 701a meet. The first volume control unit 701e and the second volume control unit 701f have different sizes. Therefore, the volume Va1 of the space part 701c and the volume Va1' of another space part 701d adjacent to the space part 701c are defined as the area based on the cross section of a certain point in the direction parallel to the axis. Form differently In addition, the first volume control unit 701e and the second volume control unit 701f are preferably cut in the axial direction and have different cross-sectional areas. The first volume control part 701e and the second volume control part 701f may be formed by molding or processing the same material as the pressing screw 701.

The first embodiment of the present invention is to compress the crushed food waste by varying the volume of the space portions 701c and 701d adjacent to each other with respect to the screw blade 701b to vary the pressure applied to the compressed solid. In the process, it can be transferred while changing the compression rate. As described above, if the space portions 701c and 701d adjacent to the screw blade 701b have different volumes, drying efficiency can be improved when the solid material is dried in the drying unit 9.

On the other hand, referring to FIG. 7 of the first embodiment of the present invention, the illustration is omitted, but the volume control unit may be installed in the same manner as described above in the space part 701d. The area may be formed differently from the first volume control part 701e and the second volume control part 701f described above.

In the first embodiment of the present invention, the crushed food waste solids are compressed while passing through the adjacent space portions 701c and 701d to have different dehydration rates and are dehydrated and discharged. In addition, the solids with different degrees of compression are accumulated in the solids receiving portion 21 (refer to FIG. 1) to form ventilation holes. Then, the air supplied from the drying unit 9 can easily pass through the ventilation holes formed between the solids, which is advantageous in improving drying efficiency. In addition, when solids having different dehydration rates are stacked on top of each other, the solid material having a low moisture content diffuses moisture from the solid material having a high moisture content, thereby allowing faster drying.

In particular, the compression screw 701 of the present invention is manufactured by integrally molding a screw rotation shaft 701a, a compression unit housing 11b, a first volume control unit 701e, and a second volume control unit 701f. That is, the embodiment of the present invention is designed by optimizing the sizes of the first volume control unit 701e and the second volume control unit 701f in the design stage, and integrally molding the compression screw 701 to reduce manufacturing cost. Dehydration and drying efficiency can be maximized.

Subsequently, the structure of the compression unit housing 11b will be described in detail with reference to FIGS. 5, 8, and 9 as follows.

As shown in Figs. 8 and 9, the crimping unit housing 11b includes a first sewage moving groove 11c, a second sewage moving groove 11d, and a third sewage moving groove 11e on the inner circumferential surface thereof. I have some.

The first sewage moving groove (11c) is located in the inlet (A) section of the pressing portion (7), is formed on the bottom surface of the pressing portion housing (11b). The first sewage moving groove 11c is formed along the lengthwise direction on the bottom surface of the compression unit housing 11b and is connected to the sewage discharge port 23. The first sewage moving groove (11c) is the sewage discharged from the sewage separated from the solid in the inflow section (A) into which the crushed material flows in, and the sewage transferred from the second sewage moving groove (11d) and the third sewage moving groove (11e). 23) can be discharged. That is, the first sewage moving groove 11c serves as a passage for moving the sewage separated from the solid material compressed by the pressing screw 701 toward the wastewater discharge gap 15.

The first sewage moving groove 11c is formed in a concave round shape along the circumferential direction on the inner circumferential surface of the compression unit housing 11b, and may be formed of a groove inclined along a direction parallel to the axis. In other words, the first wastewater moving groove 11c has a gradient that is a horizontal inclination toward the wastewater discharge port 23. In addition, the first sewage moving groove 11c is formed at a position lower than the height of the second sewage moving groove 11d and the third sewage moving groove 11e. Therefore, the sewage collected in the first sewage moving groove 11c can be smoothly discharged to the sewage outlet 23 through the sewage discharge gap 15.

The second sewage moving groove 11d is formed in the first compression section B of the pressing section 7. And the second sewage moving groove (11d) is connected to the first sewage moving groove (11c), the solid matter is compressed in the first pressing section (B) of the pressing portion (7) and the separated sewage is removed from the second sewage moving groove (11d). It serves to guide the movement to ). The second sewage moving groove 11d is formed in the lower portion of the first pressing section B, so that the sewage separated from the solid material can be discharged while minimizing mixing with the solid material again.

On the other hand, a grinding blade portion 11f is formed in the first pressing section B of the pressing portion housing 11b (see FIG. 16). The grinding blades 11f protrude toward the outer circumferential surface of the screw blade 701b and are arranged at intervals. The grinding blade part 11f of the pressing part housing 11b is made to protrude sharply when viewed in a direction perpendicular to the axis, and a gap g1 is formed between the sharply protruding part and the outer circumferential surface of the screw rotation shaft 701a. Is formed.

And referring to FIG. 16, the crimping part housing 11b has a first inclined surface 11g and a sharp inclined surface having a smooth inclined surface in a curved shape in a direction from the inner circumferential surface of the first crimping section B toward the screw blade 701b. It has a second inclined surface 11h having a. Here, the height of the second inclined surface 11h of the compression unit housing is related to the compression rate of the compression screw, and it is preferably 2 mm or less and needs to be optimized. That is, a portion where the first inclined surface 11g and the second inclined surface 11h meet becomes the grinding blade portion 11f.

In addition, the space formed under the compression unit housing 11b among the spaces formed by the second inclined surface 11h formed adjacent to the first inclined surface 11g at an interval becomes a channel through which the wastewater passes.

The first inclined surface 11g forms a space with the outer circumferential surface of the screw blade 701b and serves to discharge sewage separated from the solid material.

In addition, the second inclined surface 11h is a part that maximizes the compression effect by limiting the movement of the solid material when the screw blade 701b rotates and compresses the solid material. The grinding blade portion 11f serves to cut or cut the solid material when the screw blade 701b rotates and compresses the solid material. The second inclined surface 11h serves to once again dehydrate the solid material dehydrated from the compression screw 701 while blocking the rotation of the solid material moving by the compression screw 701.

As shown in FIG. 15, it is preferable that the second inclined surface 11h has an angle formed with an imaginary horizontal surface of 90 degrees or at least greater than 90 degrees. When the angle formed by the above-described second inclined surface 11h is less than 90 degrees, solids may be trapped and it may be difficult to move. When the angle of the second inclined surface 11h is greater than 90 degrees, the solid material can be moved smoothly, thereby achieving stability in operation.

On the other hand, the gap g1 may pass through the wastewater separated from the solid material while the compression screw 701 rotates, and may move to the second wastewater moving groove 11d formed at the lower side of the compression unit housing 11b.

On the other hand, as shown in Fig. 5, the screw tip fixing member 703 is coupled to the tip portion of the compression unit housing 11b. In addition, the screw tip fixing member 703 has a part of the third sewage moving groove 11e, as shown in FIG. 10.

The screw tip fixing member 703 is formed of an inclined surface having a tapered inner circumferential surface. The screw tip fixing member 703 has a stopper 11k along an inclined surface tapered to the inner peripheral surface in a direction parallel to the axis. The stopper 11k serves to block the rotation of the solid in the second pressing section C. That is, in the second compression section (C), the solid material compressed in the first compression section (B) is further compressed and dehydrated. Particularly, in the second compression section (C), the inner diameter of the screw tip fixing member 703 is reduced toward the tip, thereby maximizing the compression rate to remove moisture contained in the solid material. In the second compression section (C), the compression rate of the solid material may be about 93% or more compared to the inflow section (A). The third sewage moving groove 11e is a space portion between the stoppers k (see FIG. 10).

Meanwhile, the third sewage moving groove 11e may include a lower side of the screw tip fixing member 703 and a part of the tip of the compression unit housing 11b (see FIG. 5 ). That is, in the second compression section C, the shape of a part of the front end side of the compression unit housing 11b may have the same shape as the inner shape of the screw tip fixing member 703 (see FIG. 8 ).

The third sewage moving groove 11e is connected to the second sewage moving groove 11d. The third sewage moving groove 11e serves to return the sewage separated from the solid material compressed by the pressing screw 701 to the second sewage moving groove 11d.

The structure of the discharge section D for continuously discharging solids will be described in detail with reference to FIGS. 5, 11, and 12 as follows. The discharge section (D) is a section in which only the solids are discharged to the solids receiving section while the solids compressed while passing through the inlet section (A), the first compression section (B) and the second compression section (C) are removed from moisture.

11 is a cross-sectional view of a front end portion of the crimping portion 7 of the embodiment of the present invention cut in a direction parallel to the axis of the crimping screw 701.

A crimping screw 701 is disposed inside the crimping part housing 11b. The pressing portion housing 11b has a screw tip fixing member 703 coupled to its tip. The screw tip fixing member 703 passes through the crimping screw 701 and is coupled to the inside of the crimping part housing 11b. In addition, a sealing 705 is disposed while surrounding a portion of the outer peripheral surface of the tip of the screw tip fixing member 703 and the pressing screw 701. The sealing 705 is fixed to the screw tip fixing member 703 in a direction parallel to the axis of the sealing 705 by the sealing fixing member 707. The sealing fixing member 707 is fastened to the front end of the compression unit housing 11b, and presses the sealing 705 in a direction parallel to the shaft to fix it.

Sewage generated from the crimping screw 701 and the crimping unit 7 is a third sewage moving groove 11e, a second sewage moving groove 11d, and the third sewage moving groove 11e formed in the compression unit housing 11b as described above. 1 It is discharged to the sewage outlet 23 through the sewage discharge gap 15 passing through the sewage moving groove 11c. Then, the solid material containing moisture is finally moved to the solid material receiving portion 21 such as a drying container. At this time, the compression screw 701 serves to remove moisture contained in the solid material containing moisture and discharge the solid material to contain only a minimum amount of water. The screw tip fixing member 703 is installed outside the crimping screw 701 and coupled to the inside of the housing 11b. In addition, the screw tip fixing member 703 serves to fix the sealing 705 using the compression unit housing 11b and the mounted sealing fixing member 707, and the sealing 705 is disposed while surrounding the outer circumferential surface. The sealing 705 is fixed to the screw tip fixing member 703 in a direction parallel to the axis of the sealing 705 by the sealing fixing member 707. The sealing fixing member 707 is fastened to the front end of the compression unit housing 11b. The sealing 705 minimizes the function of solids in the sealing extension 705c and the screw contact part 705d, and the solid matter is removed through the outer circumferential surface of the tip of the compression screw 701 and the inner circumferential surface of the screw contact part 705d having flexibility. It serves to discharge.

On the other hand, the sealing 705 is made of a material having some flexibility, such as silicone, and serves to discharge dehydrated solids and block sewage. That is, the sealing 705, as shown in FIGS. 11 and 12, includes a sealing engaging portion 705a, a sealing support portion 705b, a sealing extension portion 705c, and a screw contact portion 705d.

The sealing engaging portion 705a and the sealing support portion 705b are formed in a cylindrical shape and serve to prevent the sealing 705 from being separated from the sealing fixing member 707. The sealing support portion 705b extends in the direction of the center of the axis from the sealing engagement portion 705a. The sealing support part 705b is pressed in a direction parallel to the axis by the sealing fixing member 707 and is fixed in close contact with the screw tip fixing member 703. The sealing extension 705c extends in an inclined shape in a direction toward the center of the axis. The sealing extension 705c is disposed in a shape surrounding the outer peripheral surface of the tip end of the screw tip fixing member 703. In addition, the screw contact portion 705d extends in a direction parallel to the axis from the sealing extension portion 705c to be in close contact with the outer peripheral surface of the tip end portion of the compression screw 701. The screw contact portion 705d is made of a flexible material such as silicon, and discharges dehydrated solids of food waste and blocks water discharge of solids.

It is preferable that the thickness T1 of the sealing support part 705b is in the range of 1.5 to 3 times the thickness T2 of the sealing extension part 705c. The thickness (T1) of the sealing support part 705b is sufficient to give elasticity to the support space connected to the sealing extension part 705c even if the silicone of the sealing support part 705b is contracted when the silicon is pushed out during the process of discharging the solid material. This is possible.

In the above description, when the thickness (T1) is 1.5 times or less than the thickness (T2) of the sealing extension part (705c), when the silicon is pushed out in the process of discharging the solid material, when the silicone of the sealing support part (705b) shrinks, the sealing extension part There is a high possibility that there is a problem in that the part leading to (705c) loses its elasticity and is discharged with solid matter.

In addition, when the thickness T1 exceeds the range of three times the thickness T2 of the sealing extension part 705c, the size of the sealing unnecessarily increases, and the size of the related component also increases.

The sealing 705 of the present invention increases the sealing extension part 705c and the screw contact part 705d by the solids discharged when compressing the food waste of dried fruit such as quince, and compensates for the volume of the stretched part. It plays a role in discharging and blocking sewage well. That is, in the sealing 705 of the embodiment of the present invention, the sealing extension part 705c and the screw contact part 705d increase when solids are discharged, and the volume of the stretched part is sufficiently compensated by the volume of the sealing support part 705b. It plays a role of discharging only solids containing only minimal water and making wastewater recoverable.

The drying unit 9 serves to dry the solid material compressed by the pressing unit 7. The drying unit 9 is preferably a blower to which a BLDC motor is applied, which is easy to control. The drying unit 9 is dried by passing drying air through spaces formed by the solids while the solids compressed in the spaces 701c and 701d each having different dehydration rates are accumulated in the solids collection unit. The blower to which such a BLDC motor is applied is not only easy to control, but also has an effect of reducing power consumption due to the characteristic of using for a long time.

The operation process of the food waste disposal apparatus according to the first embodiment of the present invention will be described in detail as follows.

The user puts food waste into the hopper 19. Then, when the switch (not shown) is operated, the DC motor 301 of the driving unit 3 is driven. The driving force of the DC motor 301 is transmitted to the power transmission gears through the planetary gear reducer 303. This driving force drives the crushing part 5 and rotates the crimping screw 701 of the crushing part 7.

The food waste put into the hopper 19 is crushed in the crushing unit 5 and separated from wastewater. Sewage is discharged in a direct downward direction through the wastewater discharge gap 15, and the crushed food waste moves to the pressing unit 7.

When the crushed food waste flows into the inlet section (A) of the pressing unit (7), the sewage separated from the crushed food waste moves along the first sewage transfer groove (11c) and passes through the wastewater discharge gap (15). It is discharged to (23).

And while the compression screw 701 of the compression unit 7 rotates, the crushed food waste is compressed. The solid matter of the crushed food waste passes through the first compression section (B) and the second compression section (C) and is discharged to the discharge section (D) while moisture is removed.

Subsequently, the solid material moved to the first compression section (B) is placed in the spaces (701c, 701d) of the compression screw (701), and is in close contact with the inner surface of the compression unit housing (11b), and is shredded food waste. Of dehydration takes place.

At this time, the solid material is further compressed while repeatedly passing through the narrow portion 702a and the extended portion 701b of the compression screw 701, and through this process, wastewater is separated from the solid material. Subsequently, in each of the spaces 701c and 701d, different compressive forces are applied due to the difference in the respective volumes Va1 and Va1', and the dehydration rate is also different by passing through the respective spaces 701c and 701d.

And the dehydrated sewage moves along the second sewage moving groove 11d and the first sewage moving groove 11c to the sewage discharge gap 15. At this time, the solid material is dehydrated while its movement is restricted by the second inclined surface 11h of the compression unit housing 11b. In addition, the solid material may be crushed by the crushing blade portion 11f of the pressing unit housing 11b. In this process, the sewage separated from the solid material moves to the second sewage moving groove 11d through the gap g1.

Subsequently, the solid material moves to the second pressing section (C). In the second pressing section (C), while the movement of the solid is restricted by the stopper (11k), dehydration is performed once more. In the second compression section (C), the solids are sufficiently dehydrated in the first compression section (B), but the compression rate of the solids is maximized as it passes through the inner diameter reduction section of the screw tip fixing member 703 of the second compression section (C). can do. As the solid material passes through the second compression section (C), the moisture content is 93% or more compared to the inflow section (A). The sewage separated in the second pressing section C moves to the third sewage moving groove 11e. And the sewage moved to the third sewage moving groove 11e is discharged to the sewage outlet 23 through the sewage discharge gap 15 through the second sewage moving groove 11d and the first sewage moving groove 11c.

The third sewage moving groove 11e is formed of a tapered groove that is inclined along the circumferential direction to secure a sufficient space for moving wastewater.

That is, the solids moving to the front end of the compression screw 701 are separated from the wastewater by receiving a large pressure because the front ends of the compression housing 11b and the screw tip fixing member 703 are narrowed.

Subsequently, the solid material is discharged between the sealing 705 and the outer peripheral surface of the tip end of the pressing screw 701 in the discharge section D. At this time, the discharge of the waste water together with the solids by the sealing 705 is blocked. Then, the solid material is discharged to the front end side of the pressing screw 701 and is accumulated in the solid material collection unit. Then, in the solids collecting section, solids having different dehydration rates are accumulated to form relatively large pores. In the drying unit 9, the solids accumulated in the solids collection unit are dried while air for drying is supplied through the pores.

The present invention improves the structure of the compression screw 701 to reduce manufacturing cost and improve food waste disposal efficiency, thereby increasing marketability.

19 is a view for explaining a second embodiment of the present invention, a view schematically showing a part of the screw blade 701b of the crimping screw 701. In the second embodiment of the present invention, compared to the first embodiment, only differences are described, and the same parts will be replaced with the description of the first embodiment.

In the crimping screw 701 of the second embodiment of the present invention, the volume (Va2, Va2') of the space portions 701c and 701d is formed differently by making the spacing A1 and A2 of the bottom portions of the screw blades 701b different. The second embodiment of the present invention can achieve the objects and effects of the present invention through an example in which the volumes (Va2, Va2') of the space portions 701c and 701d between the screw blades 701b are configured differently. Show.

20 is a view for explaining the third embodiment of the present invention, a diagram showing a part of the screw blade 701b of the crimping screw 701. In the third embodiment of the present invention, compared to the first embodiment, only differences are described, and the same portions will be replaced with the description of the first embodiment.

In the crimping screw 701 of the third embodiment of the present invention, the space portions 701c and 701d have different volumes (Va3, Va3') by different spacings (a3, a3') between the screw blades 701b. Let's do it. Of course, the space portions 701c and 701d of the third embodiment of the present invention may be configured differently in the entire area of the crimping screw 701. The third embodiment of the present invention can achieve an object through a different configuration compared to the first and second embodiments.

21 is a view for explaining the fourth embodiment of the present invention, a view schematically showing a part of the screw blade 701b of the crimping screw 701. In the fourth embodiment of the present invention, compared to the first embodiment, only differences are described, and the same parts will be replaced with the description of the first embodiment.

In the crimping screw 701 of the fourth embodiment of the present invention, the heights h1 and h2 of the screw blades 701b are different so that the space portions 701c and 701d have different volumes Va4 and Va4'. The fourth embodiment of the present invention can also achieve the objects and effects of the present invention through a different configuration when compared to the first embodiment.

That is, the second to fourth embodiments of the present invention show that the present invention can be variously implemented by changing the volumes of the spaces 701c and 701d through a configuration different from that of the first embodiment. Mixing and using one embodiment can further maximize the effect of the present invention.

Although a preferred embodiment of the present invention has been described above, the present invention is not limited thereto, and it is possible to implement various modifications within the scope of the claims, the detailed description of the invention, and the accompanying drawings. It is natural to fall within the scope of the invention.

1. Frame,
3. Driving part,
301. DC motor, 303. Planetary gear reducer,
305. Motor drive gear, 307. First cutter drive and transmission gear,
309. 1st Cutter Driving Gear, 311. 2nd Cutter Driving Gear,
313. Crimping screw drive gear,
5. crushed part,
7. Crimping part,
701. Crimping screw,
701a. Screw shaft, 701b. Screw blade,
701c, 701d. Space Part,
701e. First volume control unit, 701f. Second volume control unit,
702a. Narrow part, 702b. Extension
703. Screw tip fixing member,
705. Shilling,
705a. Sealing catch, 705b. Sealing presser,
705c. Sealing extension, 705d. Screw contact area,
707. Sealing fixing member
9. Drying blower,
11. Housing,
11a. Shredding housing, 11b. Crimp housing,
11c. The first sewage moving groove, 11d. 2nd sewage moving groove,
11e. 3rd sewage moving groove, 11f. Crushing blade,
11g. First slope, 11h. The second slope,
11k. stopper
15. Sewage discharge gap, 19. Hopper
21. Solids receiving part, 23. Sewage outlet

Claims (6)

A frame, a driving unit installed in the frame, a crushing unit for crushing food waste by receiving a driving source of the driving unit, a crushing unit for compressing the food waste crushed by the crushing unit, and drying for drying the solids compressed by the pressing unit Includes wealth,
The crimping part
A compression screw for compressing the crushed solid by receiving the driving force of the driving unit,
Comprising a compression unit housing disposed while surrounding the compression screw,
The compression part housing
The inlet section (A) where the crushed solids flow in,
A first compression section (B) for separating sewage by first compressing the solid material passing through the inflow section (A), and
It includes a second compression section (C) for separating the waste water by secondary compression of the solid material passing through the first compression section (B),
A first sewage moving groove for guiding sewage separated from solids in the inlet section (A),
A second sewage moving groove that guides sewage separated from the solid in the first pressing section (B) and is connected to the first sewage moving groove, and
A third sewage moving groove that guides sewage separated from the solid in the second pressing section (C) and is connected to the second sewage moving groove,
Including,
The compression part housing
A first inclined surface inclined in a circumferential direction to an inner surface of the compression unit housing in the first compression section (B) to form a second wastewater moving groove,
A crushing blade portion protruding from the first inclined surface toward the screw blade side of the crimping screw to cut the compressed solid, and
A second inclined surface extending from the grinding blade in a direction opposite to the first inclined surface and having a larger slope than the slope of the first inclined surface
Including,
In the second compression section (C)
A food waste disposal apparatus in which a stopper is formed between the third sewage moving grooves to limit the movement of the solid matter in the rotational direction along the length direction. The method according to claim 1,
The third sewage moving groove
A food waste disposal apparatus comprising a groove inclined along the longitudinal direction of the shaft on the bottom surface of the compression unit housing and connected to the second sewage moving groove. The method according to claim 1,
A food waste disposal apparatus that maintains a gap between the crushing blade and the screw blade through which sewage separated from solids passes through the first pressing section. delete A frame, a driving unit installed in the frame, a crushing unit for crushing food waste by receiving a driving source of the driving unit, a crushing unit for compressing the food waste crushed by the crushing unit, and drying for drying the solids compressed by the pressing unit Includes wealth,
The crimping part
A compression screw for compressing the crushed solid by receiving the driving force of the driving unit,
Comprising a compression unit housing disposed while surrounding the compression screw,
The compression part housing
The inlet section (A) where the crushed solids flow in,
A first compression section (B) for separating sewage by first compressing the solid material passing through the inflow section (A), and
It includes a second compression section (C) for separating the waste water by secondary compression of the solid material passing through the first compression section (B),
A first sewage moving groove for guiding sewage separated from solids in the inlet section (A),
A second sewage moving groove that guides sewage separated from the solid in the first pressing section (B) and is connected to the first sewage moving groove, and
A third sewage moving groove that guides sewage separated from the solid in the second pressing section (C) and is connected to the second sewage moving groove,
Including,
The compression part housing
A first inclined surface inclined in a circumferential direction to an inner surface of the compression unit housing in the first compression section (B) to form a second wastewater moving groove,
A crushing blade portion protruding from the first inclined surface toward the screw blade side of the crimping screw to cut the compressed solid, and
A second inclined surface extending in a direction opposite to the first inclined surface from the crushing blade and having a larger slope than that of the first inclined surface
Including,
The crimping part
Crimp part case,
A compression screw disposed inside the compression unit case to press the crushed food waste,
A screw tip fixing member penetrating the crimping screw and fitted into the inside of the crimping part case,
A sealing fixed to the screw tip fixing member and at the same time in close contact with the tip of the pressing screw to discharge the compressed solid and block sewage, and
A sealing fixing member that is coupled to the compression unit case and presses the sealing in a direction parallel to an axis to fix the sealing,
The sealing is
The thickness of the portion that is supported and coupled to the screw tip fixing member in a direction parallel to the axis of the compression screw is
A food waste disposal apparatus comprising at least 1.5 times the thickness of a portion coupled to the screw tip fixing member in a radial direction with respect to the axis of the pressing screw. The method according to claim 1,
The crimping screw is
It includes a screw rotation shaft and a screw blade formed on the outer peripheral surface of the screw rotation shaft,
Food waste disposal apparatus in which the volume of each space portion formed on both sides of the screw blade is different from each other.

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