KR20200107729A - Screw device for waste recycling equipment - Google Patents

Abstract

The present invention relates to a technology in which a structure of a screw device that compresses and proceeds waste in a waste treatment device is improved in an attempt to improve progression and compression efficiency. More specifically, the present invention provides a screw device of a waste recycling facility. By implementing a new type of screw device that adopts a detachable screw wing structure which is being broken while creating a gap when the waste is compressed in the waste recycling facility, a crushing ring structure that can cut or stir waste, and a structure that changes the pitch of the screw wing so that the compression efficiency and processing efficiency of waste can be improved. In particular, it is possible to continuously secure the performance of a screw device, such as being able to effectively untangle messed waste containing a lot of fiber.

Description

Screw device for waste recycling equipment {Screw device for waste recycling equipment}

The present invention relates to a screw device for a waste recycling facility, and more particularly, to a screw device for removing moisture while compressing and transporting waste in a facility that converts waste such as industrial waste, organic waste, inorganic waste, food waste, etc. About.

In recent years, the modern society, which consists of mass production and mass consumption, has caused serious environmental pollution problems by a large amount of waste such as industrial waste, organic waste, inorganic waste, food waste, etc. The representative environmental pollution problem is caused by a large amount of waste. There are soil and water pollution problems and air pollution problems due to mass consumption of energy.

Regarding these soil and water pollution problems, it is not only a free position in the field of agriculture. As a result of the promotion of intensive agriculture as production efficiency is prioritized, the problem of soil and water pollution due to excessive dropping of pesticides and chemical fertilizers and improper management of livestock manure. This is because

In addition, in the case of incineration or drying of the waste, in the case of direct flame or steam applied to the waste, due to various factors such as the loading amount, density, moisture content, incinerator size, heating temperature, etc. Combustion or complete drying is practically impossible, and there is a problem in that a large amount of odor, soot, dust, and air pollution pollutant exhaust gases are generated due to incomplete combustion or drying.

For example, organic and inorganic wastes such as animal manure, food waste, and wastewater sludge, as well as various industrial wastes, are disposed of by incineration and landfill after dehydration, and some are recycled, but most of them are discharged to the sea for disposal. .

However, marine emissions were recently banned to prevent marine pollution, and incineration requires enormous facility investment, as well as complaints from neighboring residents, and biogas production through anaerobic digestion is not very effective in terms of energy efficiency. The problem of disposal of digestive waste fluid remains.

In particular, food waste is mainly generated in the kitchen of each household, and is discharged in a state containing a large amount of moisture.

In this way, food waste generated in each household is put in a pay-as-you-go bag, separated from general waste, and collected in a designated place in front of the apartment house, or put in a separate food waste collection box and collected by a vehicle when the collection date comes. Handle it in a way that requires collection.

This method of collecting food waste is inconvenient for apartment houses such as apartments to pick up a heavy trash bag containing food waste and dispose of it in a designated place at a distance.In particular, food waste has a high moisture content, so it is difficult to leave it for a certain period of time. In this case, there are many environmental and hygienic problems, such as decay and odor, and poor aesthetics due to the placement of food waste.

Such food waste is usually disposed of together with general waste in a landfill or incineration plant, and in this case, there is a difficulty due to the content of moisture contained in the food waste, and there is a problem of increasing treatment cost as well as deteriorating environmental pollution.

In view of this, in recent years, research on a food waste disposal device capable of effectively disposing of food waste discharged from homes or restaurants has been actively conducted.

Equipment that treats waste, including food waste, has been proposed in various ways, such as fermentation, extinction, compression dehydration, centrifugal dehydration, heat drying, incineration, and a combination of the above methods. .

Such a waste treatment device includes all of a series of processes of heating, crushing and/or drying the waste, and the heat-drying waste treatment device repeatedly dries the treated product by circulating air inside a sealed chamber. Waste is treated through a series of processes in which the generated moisture vapor is condensed to remove moisture, and the treated product is dried again with dried air, and the odor in the treated gas is collected and treated using the condensed water in the condensation process.

As an example, the waste treatment device is largely composed of a compression processor and a dryer.The compression processor compresses and processes the waste coming through the waste inlet and sends it to the dryer, and the dryer dries the waste flowing from the compression processor for a certain period of time. Wastes compressed and transported in this way and from which moisture has been removed for a certain period of time are used as fertilizer or feed or are incinerated in a general waste incinerator.

In general, the screw device is responsible for the compression and transport of waste, and this screw device has a simple structure that is wound in a spiral shape on the shaft side while forming a single screw wing structure, so not only the compression efficiency is low, but also the transport efficiency is low. If the waste contains a lot of fiber, there is a disadvantage of deteriorating the performance of the screw device as waste such as fiber is trapped and fixed to the screw wing.

Korea Public Utility Model No. 20-1999-005151 Korean Utility Model Registration No. 20-0225013 Korean Utility Model Registration No. 20-0396787 Korean Patent Application Publication No. 10-2006-0127703

Accordingly, the present invention has been devised in consideration of the above points, and when the waste is compressed and transported in a waste treatment apparatus, a detachable screw wing structure that is cut off while creating a gap, a crushing ring structure capable of cutting or stirring food waste, By implementing a new type of screw device that adopts a structure that changes the pitch of the screw blades, it is possible to improve the compression efficiency and transfer efficiency of waste. In particular, it can effectively loosen and deal with tangled waste while containing a lot of fiber. The purpose of this is to provide a screw device for waste recycling facilities that can continuously secure the performance of the screw device.

In order to achieve the above object, the screw device of the waste recycling facility provided by the present invention has the following characteristics.

As an example, the screw device of the waste recycling facility is a screw device that compresses and transports waste in the waste treatment device, and is a multi-stage screw device that rotates by a motor driving force and is coupled in a coaxial structure around the outer circumference of the shaft and has a different diameter. A hollow shaft pipe having a stepped structure, and a screw blade formed in a spiral shape along a longitudinal direction of the shaft hollow pipe on an outer peripheral surface of the hollow shaft pipe to compress and transport waste, and the screw blades have different pitches. In addition to being composed of a plurality of screw blade groups, a space formed as an empty area without screw blades is formed between each screw blade group.

In particular, the hollow shaft pipe may be formed in a multi-stage stepped structure having a larger diameter sequentially toward the front of the waste transport direction.

Here, the space may be formed in a stepped section of the hollow shaft tube having a multi-step stepped structure.

In addition, each of the screw blade groups may have a smaller screw blade pitch as the group is disposed in the forward direction based on the waste traveling direction.

As another example, the screw device of the waste recycling facility is a screw device that compresses and transports waste in the waste treatment device, and compresses waste while being formed in a helical shape along the shaft length direction on a shaft rotating by a motor driving force and an outer peripheral surface of the shaft. And a moving screw blade, wherein the screw blade has a plurality of gaps formed by cutting off the middle of the screw blade length, and a crushing ring that stirs the waste while contacting the waste is formed on the outer circumferential surface of the shaft. .

Here, the crushing ring may be formed in a circular ring shape arranged concentrically with respect to the shaft over a section in which the gap of the screw blade is formed.

The crushing ring may be arranged in a state away from the outer circumferential surface of the shaft while maintaining a certain distance, and may be formed in a structure supported by a plurality of brackets formed on the inner surface of the ring.

In particular, the gaps formed in the screw blades may be formed of gaps in which the ends of the blades disposed facing each other are spaced apart from each other in the shaft length direction.

In addition, gaps formed in the screw blades may be formed at 1-pitch intervals along the longitudinal direction of the shaft.

In a preferred embodiment, the pitch of the screw blades of the shaft may be set to gradually increase toward the front or gradually decrease toward the front based on the direction of waste traveling.

As another example, the screw device of the waste recycling facility is a screw device that compresses and transports waste in the waste treatment device, and is formed in a helical shape along the longitudinal direction of the shaft on the outer circumferential surface of the shaft and a shaft rotating by a motor driving force. It includes a screw blade for compressing and transporting, and the screw blade is characterized in that a plurality of gaps are formed while the intermediate length of the screw blade is cut off.

Here, a protruding pin protruding in the shaft diameter direction may be formed in a section in which the gap of the screw blade is formed.

In particular, as an example, the gap formed in the screw blade may be formed as a gap in the shape of which the ends of the blades disposed facing each other are spaced apart from each other in the shaft length direction, or as another example, the gap formed in the screw blade The gap may be formed of a gap in a shape in which the ends of the wings disposed facing each other are spaced apart from each other in a spiral direction.

In addition, gaps formed in the screw blades may be formed at 1-pitch intervals along the longitudinal direction of the shaft.

In a preferred embodiment, the pitch of the screw blades of the shaft may be set to gradually increase toward the front or gradually decrease toward the front based on the direction in which the food waste proceeds.

The screw device of the waste recycling facility provided by the present invention has the following effects.

First, by applying a new screw device including a hollow shaft with a three-stage stepped structure in which the diameter increases sequentially while creating a space between the screw blades of each group with different pitches, the compression efficiency and transport of wastes There is an effect that can increase the efficiency as well as the dehydration efficiency for waste.

Second, by applying a new screw device including a crushing ring protruding from the gap section of the screw wing as well as a separate screw wing that is cut off while making a gap in the middle of the length of the screw wing, waste is compressed. It is possible to improve efficiency and transfer efficiency, and there is an effect of increasing dehydration efficiency for waste.

Third, there is an effect of continuously securing the performance of the screw device, such as effectively dissolving tangled waste containing a lot of fiber by using a combination of a separate screw wing and a crushing ring.

Fourth, by changing the pitch of the screw blades, such as gradually widening or gradually narrowing the screw blade pitch of the screw device in the future based on the waste proceeding direction, compression efficiency and transport efficiency for waste can be simultaneously increased. It works.

1 is a perspective view showing a screw device according to a first embodiment of the present invention
2A and 2B are a front view and a cross-sectional view showing a screw device according to a first embodiment of the present invention.
3 is a perspective view showing a screw device according to a second embodiment of the present invention
4 and 5 are perspective views showing a crushing ring in a screw device according to a second embodiment of the present invention
6 is a perspective view showing a screw device according to a third embodiment of the present invention
7 is a perspective view showing a compression screw device of a waste treatment apparatus according to a fourth embodiment of the present invention
8 is a perspective view showing a screw device according to a fifth embodiment of the present invention
9 is a perspective view showing a screw device according to a sixth embodiment of the present invention
10 is a perspective view showing a screw device according to a seventh embodiment of the present invention
11 is a perspective view showing a screw device according to an eighth embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a screw device according to a first embodiment of the present invention, and FIGS. 2A and 2B are front and cross-sectional views showing the screw device according to the first embodiment of the present invention.

As shown in FIGS. 1 and 2A and 2B, the screw device is a screw device for compressing and transporting waste in a waste treatment device (waste recycling facility), and the compression efficiency and efficiency during compression transport of waste (food waste, etc.) The transfer efficiency and dehydration efficiency can be improved, and the overall performance of the screw device can be improved, such as effectively cutting and traversing tangled wastes containing a lot of fiber.

To this end, the screw device is formed in a helical shape along the longitudinal direction of the shaft hollow pipe on the outer peripheral surface of the shaft 10 and the shaft hollow pipe 19, and the shaft hollow pipe 19 rotated by a motor driving force. It includes a screw blade 11 for conveying the waste forward while compressing the waste.

The shaft 10 is a cylindrical shaft that is located in a waste inlet (not shown) of the waste treatment device and is installed side by side in a waste processing pipe (not shown), and one end of this shaft is a motor (not shown). It is connected to the shaft, and accordingly, the shaft 10 can be rotated by the motor driving force.

The shaft hollow pipe 19 is coupled in a coaxial structure around the outer circumference of the shaft 10, and the shaft hollow pipe 19 has a multi-level stepped structure with different diameters.

For example, the shaft hollow pipe 19 includes three shaft hollow pipes 19 having different diameters, that is, a first shaft hollow pipe 19a, a second shaft hollow pipe 19b, and a third shaft hollow pipe 19c. ) Are arranged in order of small diameter, that is, the first shaft hollow pipe (19a) having the relatively smallest diameter from the rear of the three shaft hollow pipes (19a to 19c), and then the second shaft hollow pipe (19b), and the third shaft hollow pipe (19c) having the relatively largest diameter can be sequentially arranged in a three-stage stepped structure.

In addition, the hollow shaft pipe 19 may be coupled to the shaft 10 side by a plurality of closing rings 22 in a structure fixed by welding or the like.

That is, a ring-shaped closing ring 22 at the end positions of the first shaft hollow pipe 19a to the third shaft hollow pipe 19c between the inner peripheral surface of the shaft hollow pipe 19 and the outer peripheral surface of the shaft 10 Since the interposed and interposed closing ring 22 is fixed to the shaft hollow pipe 19 side and the shaft 10 side by welding, the shaft hollow pipe 19 is the shaft through the closing ring 22 (10) can be integrally combined.

The screw blades 11 are blades formed in a spiral shape along the longitudinal direction of the shaft hollow pipe on the outer circumferential surface of the shaft hollow pipe 19, and are spiral blades when the shaft 10 and the shaft hollow pipe 19 rotate. It is possible to proceed forward (in the direction of the arrow in the drawing) while compressing the waste using.

In addition, the screw blade 11 is composed of a plurality of screw blade groups 20 having different pitches, and in addition to this, a blank area in which screw blades are not formed between each screw blade group 20, that is, a screw blade Since the space 21 is formed as an empty area that is not connected to each other, it is possible to increase the efficiency of transporting the waste as well as the efficiency of dehydration of the waste, and to effectively cut the entangled waste.

To this end, the screw wing group 20 includes three groups, for example, a first screw wing group 20a, which is connected in a spiral shape along the longitudinal direction of the hollow tube on the outer circumferential surface of the first shaft hollow tube 19a, and On the outer circumferential surface of the second shaft hollow pipe (19b), the second screw wing group (20b) is connected in a helical shape along the longitudinal direction of the hollow pipe, and on the outer circumferential surface of the third shaft hollow pipe (19c), It can be made of a third screw wing group (20c) that is connected.

And, a stepped section between each screw wing group (20a to 20c), for example, a stepped section between the first screw wing group (20a) and the second screw wing group (20b), the second screw wing group (20b) In the stepped section between the and the third screw wing group 20c, a space 21 is formed due to the breakage of the screw blades between each group.

At this time, the space 21 rotates in a spiral shape and serves to adequately cut off the waste transferred toward the front, and in the end, due to the role of the space 21, the waste tangled with each other is easily cut and released so that it can be harmed. do.

In other words, the waste is transferred in a shape that rotates while being pushed forward by the screw wing 11, and it is converted into a shape that is transferred in a straight line in the section where the space 21, which is the section where the screw wing between groups is cut off, is formed. In this way, the wastes can be cut off at the point where they come in a rotating shape and then change to a linear flow (the boundary between the rotational flow and the linear flow), so that the tangled wastes can be released and mixed well with each other. The finely broken or broken waste is compressed while being pushed by the rotation of the screw blade 11, and smoothly proceeds and discharges.

In particular, the pitch of the screw blades 11 formed in the hollow shaft pipe 19 may be gradually decreased toward the front (in the direction of the arrow in the drawing) based on the direction in which the waste proceeds.

That is, the pitch of the screw blades 11 belonging to each of the screw blade groups 20 may have a smaller screw blade pitch as the group disposed in front of the silver waste proceeds.

For example, the screw blade 11 belonging to the first screw blade group 20a disposed at the rearmost side of the shaft hollow pipe 19, that is, the screw blade 11 formed in the first shaft hollow pipe 19a The pitch of) can be made with a relatively largest pitch, and the screw blade 11 belonging to the third screw blade group 20c disposed at the front of the shaft hollow pipe 19, that is, the third shaft hollow pipe The pitch of the screw blade 11 formed in (19c) can be made with a relatively smallest pitch, and the screw blade belonging to the second screw blade group 20b disposed in the middle of the shaft hollow pipe 19 ( 11) That is, the pitch of the screw blade 11 formed in the second shaft hollow pipe 19b is relatively smaller than the pitch of the screw blade 11 on the first shaft hollow pipe 19a side, and the third shaft hollow pipe ( It is possible to be made with a relatively larger pitch than the pitch of the screw blade 11 on the 19c) side.

In addition, the pitches of the screw blades 11 in each group of the first screw blade group 20a, the second screw blade group 20b, and the third screw blade group 20c may be made of the same pitch.

In addition, the diameters of the screw blades 11 of the first screw blade group 20a, the second screw blade group 20b, and the third screw blade group 20c can be made of the same diameter. The width of the screw blade 11 belonging to the 1 screw blade group 20a is made to be the largest, and the width of the screw blade 11 belonging to the second screw blade group 20b continues to be Next, the width of the screw blades 11 belonging to the third screw blade group 20c has a relatively smallest width.

Therefore, the waste that is put into the initial section of the screw device (the section where the first screw wing group is arranged, which is about 1/3 of the length of the rear when the shaft hollow tube length is divided into subdivisions) has a large pitch. Medium-term section where the pitch gradually decreases while being rapidly compressed while being weakly compressed by the screw wing (11) (the section in which the second screw wing group is arranged, about 1/3 of the middle when the length of the shaft hollow tube is divided into subdivisions) The compression ratio gradually increases and the speed of progress is slowed by sequentially going through the section corresponding to the length) and the end section (the section corresponding to the length of the front 1/3 when the shaft hollow tube length is divided into subdivisions). It will be possible to proceed.

As the waste injected into the screw device passes through the initial section, the transfer speed of the waste increases due to the low compression rate, and the compression rate gradually increases while passing through the mid-term section and the end section, while the transfer rate becomes relatively slow, resulting in efficiency. This decreases, so that a large amount of water contained in the waste is lost, that is, the dehydration efficiency of the waste can be increased in the end-stage section, and the waste with the maximum amount of water can be discharged continuously.

As a result, by changing the pitch of the screw blades 11, it is possible to simultaneously satisfy compression efficiency, transfer efficiency, and dehydration efficiency. As a result, the dehydration effect for the waste can be improved and a large amount of waste can be saved. It becomes possible to proceed and discharge quickly.

3 is a perspective view showing a screw device according to a second embodiment of the present invention.

As shown in Figure 3, the screw device is a screw device for compressing and transporting waste in a waste treatment device (waste recycling facility), compression efficiency and transport efficiency, and dehydration efficiency when compressing and transporting waste (food waste, etc.) It is made of a structure that can improve the overall performance of the screw device, such as effectively releasing tangled wastes that contain a lot of fibers, and effectively dissolving.

To this end, the screw device includes a shaft 10 rotating by a motor driving force and a screw blade 11 that is formed in a spiral shape along the longitudinal direction of the shaft on the outer circumferential surface of the shaft 10 and substantially compresses and transports waste. ).

The shaft 10 is a cylindrical shaft that is located in a waste inlet (not shown) of the waste treatment device and is installed side by side in a waste processing pipe (not shown), and one end of this shaft is a motor (not shown). It is connected to the shaft, and accordingly, the shaft 10 can be rotated by the motor driving force.

The screw blade 11 is a blade formed in a helical shape along the longitudinal direction of the shaft on the outer circumferential surface of the shaft 10, and when the shaft 10 rotates, a helical blade is used to compress waste while compressing the waste. In the direction of the arrow).

In addition, the screw blade 11 is not a shape that is continuously connected as one while going along the longitudinal direction of the shaft 10, but is separated individually by a plurality of gaps 12 made while the middle of the screw blade length is cut off. A plurality of unit screw blades 13 can be formed in a shape that forms a spiral trajectory in a slightly staggered state while moving along the shaft length direction.

In addition, the gap 12 formed in the screw blade 11, that is, the gap 12 formed between the unit screw blades 13 adjacent to each other, is each blade of the unit screw blade 13 disposed facing each other The ends 11a and 11b are spaced apart from each other in the longitudinal direction of the shaft, so that a gap in the form of a gap formed therebetween can be formed.

That is, since both ends of the broken portion of the screw blade 11 are spaced apart from each other along the longitudinal direction of the shaft 10, each blade end facing each other of the unit screw blade 13 ( Between 11a and 11b), a gap 12 in the form of an open gap in the longitudinal direction of the shaft may be formed.

At this time, the gaps 12 formed in the screw blades 11 can be formed at 1-pitch intervals along the longitudinal direction of the shaft.

For example, each unit screw blade 13 has a length that continues along a spiral trajectory corresponding to one pitch, and as a result, each gap 12 formed between each unit screw blade 13 is also screwed. It can be arranged at 1-pitch intervals along the length direction.

In this way, the screw blades 13 formed along the spiral trajectory on the outer circumferential surface of the shaft 10 consist of a plurality of unit screw blades 13 that are cut off with the gap 12 interposed therebetween, so that the screw blades when the waste is compressed The sharply cut part of (13), that is, the blade ends (11a, 11b) of the unit screw wing (13), are entangled or deeply dig deep into the lumped waste, while cutting or crushing the tangled or lumped part to loosen it. In the end, the finely broken or broken waste is compressed while being pushed by the rotation of the screw blade 11, and smoothly proceeds and discharges.

Particularly, in the present invention, a crushing ring 14 is provided as a means to further improve the compression efficiency and processing efficiency of the waste by crushing and breaking apart the lumped or entangled waste finely because a lot of fibers are mixed. do.

To this end, as shown in FIGS. 4 and 5, the crushing ring 14 has a circular ring shape and is formed on the outer circumferential surface of the shaft 10 to stir the waste while in contact with the waste.

Here, the crushing ring 14 is formed in a combination of two unit crushing rings 16 in a semicircular ring shape, and the two unit crushing rings 16 at this time are formed at the ends of each ring. By using the flange 17, that is, while the flange 17 is butted by a bolt fastening structure, it forms a circular ring shape.

In this case, it is preferable that the crushing ring 14 has a relatively large diameter compared to the diameter of the shaft 10 and at the same time has a diameter equal to or relatively smaller than the diameter formed by the outer periphery of the screw blade 11.

The crushing ring 14 may be integrally installed on the shaft 10 in a structure disposed concentrically with respect to the shaft 10 over a section in which the gap 12 of the screw blade 11 is formed.

To this end, a plurality of brackets 15 in the form of square plates are formed on the inner surface of the crushing ring 14 at regular intervals along the length of the ring and protruding for a predetermined length in the ring diameter direction. , Accordingly, the crushing ring 14 is supported by a plurality of brackets 15 fixed to the outer circumferential surface of the shaft 10 by welding, etc., and can be fixedly installed while maintaining a certain distance with respect to the outer circumferential surface of the shaft 10. do.

Therefore, when the waste is compressed, the crushing ring 14 collides with the waste, that is, while contacting and interfering, it stirs up the tangled or lumped waste, and cuts or crushes the entangled or lumped part and untie it. The broken waste is compressed while being pushed by the rotation of the screw blade 11 and can be smoothly proceeded and discharged.

6 is a perspective view showing a screw device according to a third embodiment of the present invention, and FIG. 7 is a perspective view showing a screw device according to a fourth embodiment of the present invention.

In the third and fourth embodiments of the present invention, the pitch of the screw blades 11 formed on the shaft 10, that is, a change in the pitch of the unit screw blades 13 forming a spiral trajectory or a spiral trajectory in a slightly staggered state By giving, it is possible to increase the initial compression efficiency, as well as the intermediate compression efficiency and the final compression efficiency, and in connection with this, it provides a screw device having a structure capable of improving the progression efficiency of the early, middle, and late stages.

To this end, the screw wing 11 is a plurality of unit screw wings 13 separated individually by a plurality of gaps 12 made while the middle of the screw wing length is cut off slightly staggered along the shaft length direction. It can be formed in a shape that forms a spiral trajectory of the state.

In addition, the gap 12 formed in the screw blade 11, that is, the gap 12 formed between the unit screw blades 13 adjacent to each other, is each blade of the unit screw blade 13 disposed facing each other The ends 11a and 11b are spaced apart from each other in the longitudinal direction of the shaft, so that a gap in the form of a gap formed therebetween can be formed.

That is, since both ends of the broken portion of the screw blade 11 are spaced apart from each other along the longitudinal direction of the shaft 10, each blade end facing each other of the unit screw blade 13 ( Between 11a and 11b), a gap 12 in the form of an open gap in the longitudinal direction of the shaft may be formed.

At this time, the gaps 12 formed in the screw blades 11 can be formed at 1-pitch intervals along the longitudinal direction of the shaft.

For example, each unit screw blade 13 has a length that continues along a spiral trajectory corresponding to one pitch, and as a result, each gap 12 formed between each unit screw blade 13 is also screwed. It can be arranged at 1-pitch intervals along the length direction.

In particular, the pitch of the screw blades 11 formed on the shaft 10 may be gradually increased toward the front (in the direction of the arrow in the drawing) or may be gradually decreased toward the front based on the waste moving direction.

As an example, as shown in FIG. 6, the pitch between the unit screw blades 13 disposed at the rearmost side of the shaft 10 can be made at a relatively largest pitch, and the longitudinal direction of the shaft 10 The pitch between the unit screw blades 13 can be made with a relatively small pitch as it goes forward along the shaft, and the pitch between the unit screw blades 13 disposed at the front of the shaft 10 is relatively smallest. Can be achieved.

Accordingly, waste injected into the initial section of the screw device (the section corresponding to the length of about 1/3 of the rear when the shaft length is divided into subdivisions) is rapidly conveyed while being compressed weakly by the screw blades 11 having a large pitch. The mid-term section (the section corresponding to the middle one-third of the length when the shaft length is divided into subdivisions) and the end section (about one-third of the front section when the shaft length is divided into subdivisions) The compression rate gradually increases while passing through the section corresponding to the length), and at the same time, the progression speed may be slowed.

As the waste injected into the screw device passes through the initial section, the transfer speed of the waste increases due to the low compression rate, and the compression rate gradually increases while passing through the mid-term section and the end section, while the transfer rate becomes relatively slow, resulting in efficiency. This decreases, so that a large amount of water contained in the waste is lost, that is, the dehydration efficiency of the waste can be increased in the end-stage section, and the waste with the maximum amount of water can be discharged continuously.

As a result, by changing the pitch of the screw blades 11, it is possible to simultaneously satisfy compression efficiency, transfer efficiency, and dehydration efficiency. As a result, the dehydration effect for the waste can be improved and a large amount of waste can be saved. It becomes possible to proceed and discharge quickly.

As another example, as shown in FIG. 7, the pitch between the unit screw blades 13 disposed at the rearmost side of the shaft 10 can be made at a relatively smallest pitch, and the longitudinal direction of the shaft 10 The pitch between the unit screw blades 13 can be made with a relatively larger pitch as it goes forward along the line, and the pitch between the unit screw blades 13 disposed at the front of the shaft 10 is the relatively largest pitch. Can be achieved.

Accordingly, the waste in the initial section of the screw device (the section corresponding to the length of about 1/3 of the rear side when the shaft length is divided into subdivisions) is dehydrated as the compression rate is increased by the screw blade 11 having a small pitch. Becomes larger and the pitch gradually increases afterwards (the section corresponding to the middle 1/3 of the length when the shaft length is divided by the subdivision) and the end section (the front section when the shaft length is divided into subdivisions) The compression ratio gradually decreases while passing through the section corresponding to the length of about 1/3), so that the feed rate can be smoothed.

While the waste injected into the screw device passes through the initial section, the compression efficiency increases due to the relatively high compression rate, and a large amount of moisture contained in the waste is removed, thereby increasing the dehydration efficiency. During transit, the compression efficiency is lowered due to a low compression rate, and a large amount of waste proceeds quickly and smoothly, thereby increasing the transfer efficiency.

Eventually, by changing the pitch of the screw blades 11, it is possible to simultaneously satisfy the compression efficiency as well as the running efficiency, and as a result, the dehydration effect for the waste can be improved, and a large amount of waste can be rapidly processed and Can be discharged.

8 is a perspective view showing a screw device according to a fifth embodiment of the present invention.

As shown in FIG. 8, the screw device is a screw device for compressing and transferring waste in a waste treatment device, and it is possible to improve compression efficiency, transfer efficiency, and dehydration efficiency during compression transfer of waste. It is made of a structure that can improve the overall performance of the screw device, such as effectively dissolving the tangled waste contained therein.

To this end, the screw device includes a shaft 10 rotating by a motor driving force and a screw blade that substantially compresses and transports food waste while being formed in a helical shape along the shaft length direction on the outer peripheral surface of the shaft 10. 11).

The shaft 10 is a cylindrical shaft that is located at the food waste inlet (not shown) of the food waste treatment device and is installed parallel to the inside of the food waste transfer pipe (not shown), and one end of this shaft is a motor (not shown). Si) is connected to the shaft, and accordingly, the shaft 10 can be rotated by the motor driving force.

The screw blade 11 is a blade formed in a helical shape along the longitudinal direction of the shaft on the outer circumferential surface of the shaft 10, and when the shaft 10 rotates, a helical blade is used to compress waste while compressing the waste. In the direction of the arrow).

In particular, the screw blade 11 is not a shape that is continuously connected as one along the longitudinal direction of the shaft 10, but is separated individually by a plurality of gaps 12 made while the middle of the screw blade length is cut off. A plurality of unit screw blades 13 can be formed in a form in which a spiral trajectory is formed along the longitudinal direction of the shaft.

In addition, the gap 12 formed in the screw blade 11, that is, the gap 12 formed between the unit screw blades 13 adjacent to each other, is each blade of the unit screw blade 13 disposed facing each other The ends 11a and 11b may be formed as gaps in the form of spaced apart from each other on a line forming a helical direction.

At this time, the gaps 12 formed in the screw blades 11 can be formed at 1-pitch intervals along the longitudinal direction of the shaft.

For example, each unit screw blade 13 has a length that continues along a spiral trajectory corresponding to one pitch, and as a result, each gap 12 formed between each unit screw blade 13 is also screwed. It can be arranged at 1-pitch intervals along the length direction.

In this way, the screw blades 11 formed along the spiral trajectory on the outer circumferential surface of the shaft 10 consist of a plurality of unit screw blades 13 that are cut off with the gap 12 therebetween. By the sharply cut part of (13), that is, by the blade ends (11a, 11b) of the unit screw blade (13), the waste tangled or lumped is cut or shredded and loosened, and eventually the finely broken waste is screwed. It is pushed and compressed by the rotation of the blades 11 and can be smoothly transferred and discharged.

In addition, in the section in which the gap 12 of the screw wing 11 is formed, that is, the section between the unit screw wings 13 adjacent to each other, a protruding pin 18 protruding in the shaft diameter direction is formed. When the shaft 10 rotates, the protrusion pin 18 stirs the waste and strikes the waste while rotating together.

Accordingly, when the shaft 10 including the screw blade 11 is rotated, the waste is stirred by the protruding pin 18, so that the waste can be smoothly transferred and discharged without agglomeration.

Here, the protrusion pin 18 may be formed in a form attached to the outer peripheral surface of the shaft 10 by welding or screwing.

9 is a perspective view showing a screw device according to a sixth embodiment of the present invention.

As shown in FIG. 9, the screw device according to the sixth embodiment is also a screw device for compressing and transferring waste in the waste treatment device, and it is possible to improve compression efficiency, transfer efficiency, and dewatering efficiency during compression transfer of waste. In addition, it has a structure that can improve the overall performance of the screw device, such as effectively dissolving tangled wastes containing a lot of fiber.

To this end, the screw device includes a shaft 10 rotating by a motor driving force and a screw blade 11 that is formed in a spiral shape along the shaft length direction on the outer circumferential surface of the shaft 10 and substantially compresses and transports waste. ).

The shaft 10 is a cylindrical shaft that is located in the waste inlet (not shown) of the waste treatment device and is installed parallel to the inside of a waste transfer pipe (not shown), and one end of this shaft is a motor (not shown). It is connected to the shaft, and accordingly, the shaft 10 can be rotated by the motor driving force.

The screw blade 11 is a blade formed in a helical shape along the longitudinal direction of the shaft on the outer circumferential surface of the shaft 10, and when the shaft 10 rotates, a helical blade is used to compress waste while compressing the waste. In the direction of the arrow).

In particular, the screw blade 11 is not a shape that is continuously connected as one along the longitudinal direction of the shaft 10, but is separated individually by a plurality of gaps 12 made while the middle of the screw blade length is cut off. A plurality of unit screw blades 13 can be formed in a shape that forms a spiral trajectory in a slightly staggered state while moving along the shaft length direction.

In addition, the gap 12 formed in the screw blade 11, that is, the gap 12 formed between the unit screw blades 13 adjacent to each other, is each blade of the unit screw blade 13 disposed facing each other The ends 11a and 11b are spaced apart from each other in the longitudinal direction of the shaft, so that a gap in the form of a gap formed therebetween can be formed.

That is, since both ends of the broken portion of the screw blade 11 are spaced apart from each other along the longitudinal direction of the shaft 10, each blade end facing each other of the unit screw blade 13 ( Between 11a and 11b), a gap 12 in the form of an open gap in the longitudinal direction of the shaft may be formed.

At this time, the gaps 12 formed in the screw blades 11 can be formed at 1-pitch intervals along the longitudinal direction of the shaft.

For example, each unit screw blade 13 has a length that continues along a spiral trajectory corresponding to one pitch, and as a result, each gap 12 formed between each unit screw blade 13 is also screwed. It can be arranged at 1-pitch intervals along the length direction.

In this way, the screw blades 13 formed along the spiral trajectory on the outer circumferential surface of the shaft 10 consist of a plurality of unit screw blades 13 that are cut off with the gap 12 therebetween. The sharply cut part of (13), that is, the blade ends (11a, 11b) of the unit screw wing (13) are entangled or deeply dig deep into the lumped waste, while cutting or crushing the tangled or lumped part to loosen it. In the end, the finely broken or broken waste can be smoothly transported and discharged while being pushed and compressed by the rotation of the screw blades 11.

10 is a perspective view showing a screw device according to a seventh embodiment of the present invention, and FIG. 11 is a perspective view showing a screw device according to an eighth embodiment of the present invention.

In the seventh and eighth embodiments of the present invention, the pitch of the screw blades 11 formed on the shaft 10, that is, the pitch of the unit screw blades 13 forming a helical trajectory or a helical trajectory in a slightly staggered state is changed. By giving, it is possible to increase the initial compression efficiency, as well as the intermediate compression efficiency and the final compression efficiency, and in connection with this, it provides a screw device having a structure capable of improving the transfer efficiency and dehydration efficiency in the early, mid, and late stages.

To this end, the screw wing 11 is a plurality of unit screw wings 13 separated individually by a plurality of gaps 12 made while the middle of the screw wing length is cut off slightly staggered along the shaft length direction. It can be formed in a shape that forms a spiral trajectory of the state.

In addition, the gap 12 formed in the screw blade 11, that is, the gap 12 formed between the unit screw blades 13 adjacent to each other, is each blade of the unit screw blade 13 disposed facing each other The ends 11a and 11b are spaced apart from each other in the longitudinal direction of the shaft, so that a gap in the form of a gap formed therebetween can be formed.

That is, since both ends of the broken portion of the screw blade 11 are spaced apart from each other along the longitudinal direction of the shaft 10, each blade end facing each other of the unit screw blade 13 ( Between 11a and 11b), a gap 12 in the form of an open gap in the longitudinal direction of the shaft may be formed.

At this time, the gaps 12 formed in the screw blades 11 can be formed at 1-pitch intervals along the longitudinal direction of the shaft.

For example, each unit screw blade 13 has a length that continues along a spiral trajectory corresponding to one pitch, and as a result, each gap 12 formed between each unit screw blade 13 is also screwed. It can be arranged at 1-pitch intervals along the length direction.

In particular, the pitch of the screw blades 11 formed on the shaft 10 may be gradually increased toward the front (in the direction of the arrow in the drawing) or gradually decreased toward the front based on the waste conveying direction.

As an example, as shown in FIG. 10, the pitch between the unit screw blades 13 disposed at the rearmost side of the shaft 10 can be made at a relatively largest pitch, and the longitudinal direction of the shaft 10 The pitch between the unit screw blades 13 can be made with a relatively small pitch as it goes forward along the shaft, and the pitch between the unit screw blades 13 disposed at the front of the shaft 10 is relatively smallest. Can be achieved.

Accordingly, waste injected into the initial section of the screw device (the section corresponding to the length of about 1/3 of the rear when the shaft length is divided into subdivisions) is rapidly conveyed while being compressed weakly by the screw blades 11 having a large pitch. The mid-term section (the section corresponding to the middle one-third of the length when the shaft length is divided into subdivisions) and the end section (about one-third of the front section when the shaft length is divided into subdivisions) The compression rate gradually increases while passing through the section corresponding to the length), and at the same time, the progression speed may be slowed.

As the waste injected into the screw device passes through the initial section, the conveying speed of the waste increases due to the low compression rate, and the compression rate gradually increases while passing through the mid-term section and the end section, and at the same time, the transfer rate becomes relatively slow, resulting in efficiency of progress. This decreases, so that a large amount of water contained in the waste is lost, that is, the dehydration efficiency of the waste can be increased in the initial section, and the waste with the maximum moisture can be discharged continuously.

As a result, by changing the pitch of the screw blades 11, it is possible to simultaneously satisfy compression efficiency, transfer efficiency, and dehydration efficiency. As a result, the dehydration effect for the waste can be improved and a large amount of waste can be saved. It becomes possible to proceed and discharge quickly.

As another example, as shown in FIG. 11, the pitch between the unit screw blades 13 disposed at the rearmost side of the shaft 10 can be made at a relatively smallest pitch, and the longitudinal direction of the shaft 10 The pitch between the unit screw blades 13 can be made with a relatively larger pitch as it goes forward along the line, and the pitch between the unit screw blades 13 disposed at the front of the shaft 10 is the relatively largest pitch. Can be achieved.

Accordingly, the waste in the initial section of the screw device (the section corresponding to the length of about 1/3 of the rear side when the shaft length is divided into subdivisions) is dehydrated as the compression rate is increased by the screw blade 11 having a small pitch. Becomes larger and the pitch gradually increases afterwards (the section corresponding to the middle 1/3 of the length when the shaft length is divided by the subdivision) and the end section (the front section when the shaft length is divided into subdivisions) The compression ratio gradually decreases while passing through the section corresponding to the length of about 1/3), so that the feed rate can be smoothed.

While the waste injected into the screw device passes through the initial section, the compression efficiency increases due to the relatively high compression rate, and a large amount of moisture contained in the waste is removed, thereby increasing the dehydration efficiency. During transit, the compression efficiency is lowered due to a low compression rate, and a large amount of waste proceeds quickly and smoothly, thereby increasing the transfer efficiency.

Eventually, by changing the pitch of the screw blades 11, it is possible to simultaneously satisfy the compression efficiency as well as the running efficiency, and as a result, the dehydration effect for the waste can be improved, and a large amount of waste can be rapidly processed and Can be discharged.

As described above, in the present invention, when the waste injected into the screw device of the waste recycling facility is compressed and transferred simultaneously (when dewatering), a structure in which a space is created between the screw blades, a three-stage hollow shaft structure with a difference in diameter, Screw wing structure, a protruding pin structure that can cut waste, a structure that changes the pitch of the screw wing, etc., by providing a new screw device that can improve the compression efficiency, transfer efficiency, and dewatering efficiency of waste. It is possible to increase the efficiency of dehydration of waste such as, and at the same time increase the waste treatment capacity, and to effectively dissolve the tangled waste even when it contains a lot of fibrous material. .

10: shaft
11: screw wing
11a,11b: wing end
12: gap
13: unit screw wing
14: shredding ring
15: bracket
16: unit shredding ring
17: flange
18: protruding pin

Claims (6)

As a screw device that compresses and transports waste in a waste treatment device,
It includes a shaft 10 rotating by a motor driving force and a screw wing 11 that compresses and transports food waste while being formed in a spiral shape along the shaft length direction on the outer peripheral surface of the shaft 10,
The screw device of the waste recycling facility, characterized in that the screw blade (11) is formed with a plurality of gaps (12) made while the middle of the screw blade length is cut off.
The method according to claim 1,
The screw device of the waste recycling facility, characterized in that in the section where the gap 12 of the screw blade 11 is formed, a protruding pin 14 protruding in the shaft diameter direction is formed.
The method according to claim 1,
The gap 12 formed in the screw blade 11 is a gap in a shape in which the blade ends 11a and 11b disposed facing each other are spaced apart from each other in the shaft length direction. .
The method according to claim 1,
The gap 12 formed in the screw blade 11 is a gap in a shape in which the blade ends 11a and 11b disposed facing each other are spaced apart from each other in a spiral direction.
The method according to claim 1,
The screw device of a waste recycling facility, characterized in that the gaps 12 formed in the screw blades 11 are formed at 1-pitch intervals along the length of the shaft.
The method according to claim 1,
The screw device of a waste recycling facility, characterized in that the pitch of the screw blades 11 of the shaft 10 gradually increases toward the front or gradually decreases toward the front based on the direction in which the food waste proceeds.

Images