KR100678990B1 - Filter Press Dewatering Device - Google Patents

Abstract

The present invention relates to a filter press type dewatering device, which can be cleaned by itself while preventing sludge, etc., from being clogged at intervals between dewatering rods, which are dewatering means, and well-pressured by sludge, etc. To withstand, the purpose is to improve the dehydration efficiency through the minute gap between the dehydration rod. In the filter press type dewatering apparatus which compresses and conveys the introduced sludge by the compression transfer means 40 and dehydrates the fluid by the dehydration part 50 to extrude the dried sludge, the driving motor generating a driving force ( And a compression transfer means 40 connected to the drive motor 30 to compress and transport the sludge in the inflow barrel 44; and a plurality of dewatering rods 51 after the inflow cylinder 44. Dehydration unit 50 to dehydrate the fluid material among the sludge conveyed by the transfer screw 43 between the dehydration rod 51; and the sludge formed after the dewatering unit 50 is dehydrated by being pushed back Stacking unit 60; and the sludge formed and stacked after the stacking unit 60 is characterized in that it comprises an extrusion unit 70 is extruded to the outside of the body.

Description

Filter Press Dewatering Device {DRYER OF USING FILTER PRESS}

1 is a configuration diagram of a first embodiment of a filter press dewatering device according to the present invention.

Figure 2a and Figure 2b is a cross-sectional state diagram before and after expansion of the dewatering portion of the filter press type dewatering device according to the present invention.

Figure 3 is a configuration of the heating unit is installed in the filter press type dewatering apparatus according to the present invention.

Figure 4 is a configuration of a second embodiment of the filter press type dewatering device according to the present invention.

5 is a configuration state in which a plurality of filter press type dehydration apparatus of FIG. 4 is installed.

Figure 6a and 6b is a state filled with the absorbent material inside the dewatering rod of the first and second embodiments of the filter press type dewatering device according to the present invention.

Explanation of symbols on the main parts of the drawings

30. Drive motor 40. Compression transfer means

41. Hopper 42. Inlet hole

43. Feed screw 44. Inlet bucket

45. Screw Gear 46. Screw Block

47. Piston 50. Dewatering part

51. Dewatering rod 52. End capillary

53. Intermediate fixing pipe 54. Heating part

55. Drain cover 56. Drain pipe

60. Accumulation part 70. Extrusion part

The present invention relates to an apparatus for separating fluids such as water from sludge, and more particularly, after sludge and the like are compressed and transported by a compression transfer means, dehydrating the fluid through a dehydration part and dehydrating dried sludge and the like. It relates to a filter press type dewatering device for discharging the gas.

The sludge and the like include food waste, livestock manure, thermoplastics, paper and fibers containing moisture, semi-finished products of food containing moisture and oil, and the like. Sludge etc. can be divided into a flowable material and a solid form material. A fluid substance is a substance that is dehydrated and is a liquid substance such as moisture or oil, or a gel substance capable of flowing. Solid materials are dehydrated or non-dehydrated materials, which are sludges, etc., excluding fluids.

In general, sewage and wastewater containing sludge are generated in sewage treatment plants or wastewater treatment plants, and the method of separating sludge from water (sewage or wastewater) using filter cloth to separate the sludge from filter press method and It can be divided into belt press method.

In particular, in the filter press method, the filter is suitable for each case because the types of sludge are very diverse, and the ratio of the flowable material and the solid form material and the viscosity thereof are different. Filters include low pressure filters such as steel mesh filters, paper filters, hollow fiber membrane filters, reverse osmosis filters, and high pressure filters such as membranes.

In the case of the quantum method as described above, it is difficult to perforate the size of the pores extremely finely, and thus there is a limit in improving the filtration efficiency such as sludge. In addition, since the phenomenon of clogging the fine pores formed in the filter cloth during dehydration occurs by the solid form material, after the removal of the solid form material from the filter cloth is sprayed with high-pressure washing water to open the blocked fine pores of the filter cloth.

When high pressure washing water is injected into the filter cloth, the filter is broken and the filter life is shortened as the filter is frequently replaced. In addition, since the washing water is contaminated and not only makes the river dirty, but also uses a pump according to the injection of the high-pressure washing water, it is difficult to use and economic burden is excessively generated. In particular, problems such as waste of a lot of washing water and time loss of the worker, resulting in increased work costs.

Therefore, the technical problem to be achieved in the present invention, the rod-shaped dewatering rod as the dewatering means is formed in the longitudinal direction in parallel with the direction of movement of the sludge, etc. in a tightly arranged circular arrangement is sludge in the gap between the dewatering rod for dewatering Self-cleaning is possible while preventing clogging.

In addition, the present invention provides a filter press type dewatering device that withstands the pressure of the sludge during the transport of the sludge, and improves the dewatering efficiency through a minute gap between the dewatering rods.

In the filter press type dewatering apparatus of the present invention for solving the above technical problem, the introduced sludge is compressed and transported by the compression transfer means 40, and the dehydrated part 50 is dehydrated to extrude the dried sludge. In the filter press type dewatering device, a drive motor for generating a driving force (30); and a compression transfer means (40) connected to the drive motor (30) for compressing and conveying the sludge in the inlet (44); and the A dewatering unit 50 formed of a plurality of dewatering rods 51 next to the inflow tube 44 to dehydrate fluid material among the sludge conveyed by the transfer screw 43 between the dewatering rods 51; and the dewatering unit ( 50) a deposit portion 60 formed next to accumulate sludge dehydrated with a fluid material; and an extruded portion 70 formed after the accumulation portion 60 and accumulated sludge is extruded to the outside of the body. Characterized in that do.

Compression conveying means 40 of the first embodiment is made of a feed screw, it is provided with a filter press type dewatering device, characterized in that the inlet pipe is connected to the end of the feed screw connected to the drive motor.

The compression transfer means 40 of the second embodiment includes a screw gear 45 which is connected to a drive motor and rotates; and a screw block that is engaged with the outside of the screw gear 45 and moves horizontally as the screw gear 45 rotates. And a piston 47 connected to the screw block 46 and installed inside the inflow tube.

The dewatering part 50 is characterized in that a plurality of dehydrating rods 51 are arranged in a circular shape between both end fixing pipes 52, and the middle portion of the dewatering rods 51 arranged by the intermediate fixing tube 53 is fixed. Provided is a filter press type dewatering device.

A heating part 54 is formed outside the end fixing tube 52 to provide a filter press type dewatering device, which supplies heat to the dewatering rod 51.

The drain cover 55 is wrapped on the outside of the dewatering portion, and the lower portion of the drain cover 55 provides a filter press type dewatering device, characterized in that the drain pipe 56 is formed.

Provided is a filter press type dewatering device, characterized in that the absorbent material 57 is filled inside the dewatering part to filter the fluid material.

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

The filter press type dewatering device according to the present invention is configured to extrude the dried solid material by supplying sludge or the like by compression conveying means 40 and dehydrating the flowable material by the dehydration part 50 in the sludge or the like. .

Figure 1 shows the configuration of the first embodiment of the filter press type dewatering apparatus according to the present invention, Figures 2a and 2b is a dehydration portion 50 of the first embodiment of the filter press type dewatering apparatus according to the present invention The state of AA cross section before and after receiving pressure is shown.

As shown in Figure 1 and Figure 2a, in the first embodiment of the filter press type dewatering apparatus according to the present invention, a drive motor 30 for generating a driving force at the end of the inflow tube 44, into which sludge or the like is introduced is installed. . The sludge is introduced into the inlet hole 42 of the inlet tube 44 through the hopper 41 located above the inlet tube 44.

The compression conveying means 40 of the first embodiment is a conveying screw 43. The feed screw 43 is a screw blade is formed obliquely around the rotating shaft, it is built in the inlet 44 and connected to the drive motor 30 to compress and transport the sludge. The length of the transfer screw 43 is not limited to the length of the inflow pipe 44, but may be built up to a part of the dewatering part 50 to be described later.

The dewatering part 50 formed after the inflow tube 44 is formed of a plurality of dewatering rods 51 as shown in FIGS. 1 and 2A to dehydrate fluid substances in sludge and the like transferred by the transfer screw 43. Dehydration is carried out to the gap between the rods 51.

The dewatering rod 51 has a circular rod shape, and the material is made of a stainless steel rod, a stainless steel rod, a cylindrical rod, a glass rod, a glass rod, a carbon rod, or a carbonite rod. The dewatering rod 51 may be a pure metal rod or a plated or coated rod that has been polished. In particular, the titanium plating on the surface of the dewatering rod can extend the life of the dewatering rod.

One end of the end fixing tube 52 is attached to the end of the inflow tube 44, and one end of the dewatering rod 51 is fixed to the other end of the end fixing tube 52. The other end of the dewatering rod 51 is fixed to one end of the other end fixing pipe 52. The inner diameter of the end fixing pipe 52 is preferably formed to be the same as the inner diameter of the inflow tube 44. In the middle of the outer longitudinal direction of the dehydration rods 51 fixed to the end fixing tube 52, the intermediate fixing tube 53 wraps and fixes the dehydration rods 51.

The end fixing pipe 52 and the intermediate fixing pipe 53 not only fix the dewatering rod in a circular arrangement, but also resist the pressure generated by the sludge accumulated. The end fixing tube 52 and the intermediate fixing tube 53 maintain and control the gap between the dewatering rods, and serve to assist the dewatering rods that have been inflated outward by pressure to contract back.

The gap between the dewatering rods is related to the pressure of sludge and the inflow rate of sludge. In addition, when the cross-sectional diameter of the dewatering rod is reduced or the length of the dewatering rod is increased, the gap between the dewatering rods is easily opened even at a lower pressure. The amount of dehydration can be adjusted by adjusting the cross-sectional diameter and length of the dewatering rod.

The amount of dehydration dehydrated through the gap between the dewatering rods can be calculated by multiplying all the gaps of the dewatering rods (0.0001 to 0.001 mm), the length of the dewatering rods, and the number of dewatering rods.

The method of fixing both ends of the dewatering rod 51 to the side of the end fixing tube 52 is to form a groove on the side of the end fixing tube 52 to fix the end of the dewatering rod 51 to fix the end of the end fixing tube 52 or to the side of the end fixing tube 52. The end of the dewatering rod 51 is attached to and fixed by a method such as welding using a bonding agent such as welding or epoxy.

3 shows a configuration in which the heating section 54 of the filter press type dehydration apparatus according to the present invention is installed.

As shown in FIG. 3, a heating part 54 is formed outside the end fixing tube 52 to supply heat to the dewatering rod 51. The heat supplied to the dewatering rod 51 evaporates fluid substances such as sludge, or dissolves impurities that are well soluble in heat such as waste PVC and separates them from substances other than impurities soluble in heat. Here, the heating unit is a conventional heating device capable of controlling the temperature, and a detailed description thereof will be omitted.

In the accumulation part 60 formed after the dehydration part 50, sludge etc. from which the fluid substance was dehydrated are pushed and accumulated. In the extrusion unit 70 formed after the stacking unit 60, sludge accumulated and the like is extruded to the outside of the body.

On the other hand, as shown in Figure 4, the second embodiment of the filter press type dewatering device according to the present invention, the drive motor 30 for generating a driving force is provided, the compression transfer means 40 is connected to the drive motor. Figure 4 shows the construction of the second embodiment of the filter press type dewatering apparatus according to the present invention.

In the second embodiment, the compression transfer means 40 rotates with the screw gear 45 connected to the drive motor, and the screw block 46 is engaged with the outside of the screw gear 45 so that the screw gear 45 rotates. Block 46 moves horizontally. The piston 47 is connected to the screw block 46 and one end of the piston 47 is installed inside the inflow tube so that the screw block 46 moves horizontally with the horizontal block. The end of the piston 47 may be installed not only in the inflow tube but also inside the dewatering portion.

Here, the screw gear 45 and the screw block 46 are means for horizontally moving the piston 47 and are not limited in form. Other means for achieving the purpose of horizontally moving the piston 47 (for example, For example, worm gears or rack pinion gears) can also be applied.

The compression conveying means according to the present invention may be other means as long as it is a means capable of compressively conveying sludge or the like to the dehydration part in addition to the extrusion conveying means of the first and second embodiments.

In addition, in the second embodiment, the inlet tube and the compression transfer means are omitted between the inlet pipe and the dewatering part, and the dewatering part may be directly connected to the inlet pipe. In this case, it is possible to compress and transport the sludge to the inside of the dewatering part only by the low pressure when the sludge or the like is introduced depending on the type of the sludge.

An inlet tube 41a is connected to the upper side of the inlet tube so that sludge or the like is introduced into the inlet tube. The dewatering part 50 formed next to the inflow cylinder 44 has the same structure as the first embodiment, and is formed of a plurality of dewatering rods 51 to dehydrate the flowable material in sludge or the like conveyed by the piston 47 ( 51) Dehydrate into the gap between them. As in the first embodiment, a heating unit 54 is formed outside the end fixing tube 52 to supply heat to the dewatering rod 51.

The drain cover 55 is wrapped on the outer side of the dewatering part to prevent splashing of the fluid material discharged from the gap of the dewatering rod. A drain pipe 56 is formed at the bottom of the drain cover 55 to discharge the flowable material to the outside of the drain cover 55. Of course, the drain cover 55 and the drain pipe 56 may also be applied to the first embodiment.

In the accumulation part 60 formed after the dehydration part 50, sludge etc. from which the fluid substance was dehydrated are pushed and accumulated. In the extrusion unit 70 formed after the stacking unit 60, sludge accumulated and the like is extruded to the outside of the body.

5 is connected to a plurality of filter press type dewatering device of FIG. A screw gear 45 and a screw block 46 connected to one drive motor are provided, and a plurality of pistons 47 (two in FIG. 5) are integrally formed in the screw block 46.

Inflow cylinders are provided at both ends of the piston 47 so that four inflow cylinders can be installed in the two pistons 47. The inlet pipe 41a at the upper part of the inlet tube is branched to each inlet tube in one tube to introduce sludge into each inlet tube.

Each inlet is followed by a dehydration part, a accumulation part and an extrusion part. A drain cover 55 is formed outside the dewatering rod of each dewatering part, and each of the drain pipes 56 under the drain cover 55 is combined to discharge the fluid substance discharged into the gap of the dewatering rod into one tube.

A control unit (not shown) is connected to the drive motor, and a timer, limit switch, or pressure switch (not shown) is connected to the control unit so that the screw gears rotate alternately, thereby effectively operating the dehydrating units installed at both ends of the piston. have.

6A and 6B show a state in which an absorbent material is filled inside the dewatering rods of the first and second embodiments of the filter press type dewatering apparatus according to the present invention.

In the first and second embodiments of the filter press type dewatering device according to the present invention, as shown in FIG. 6, the absorbent material 57 is filled inside the dewatering part so that the fluid material is filtered and discharged into the gap of the dewatering rod. The absorbent may be sawdust as a means of absorbing and filtering the flowable material. The absorbent material is not limited to sawdust alone, but other means can be used as long as it is a means for filtering the flowable substance.

The meaning of "filtration" is distinguished from "dehydration" in the sense of separating and removing the flowable material, and was used as a means for purifying fine sludge and the like particles contained in the flowable material to discharge the flowable material in a clear state.

Looking at the action of the filter press dewatering device according to the present invention made as described above are as follows.

First, the action of the first embodiment of the present invention, the sludge supplied through the hopper 41 is introduced into the inlet tube 44 through the inlet hole (42). The introduced sludge or the like is rotated by the feeding screw 43 which is supplied between the screw blades of the feeding screw 43, which is the compression transferring means 40, and rotates. Sludge etc. to be conveyed are transferred to the accumulation part 60 through the dehydration part 50. Sludge and the like transferred to the accumulation portion is accumulated in the accumulation portion 60 for a predetermined time without being immediately discharged to the outside.

The sludge first transferred to the accumulation part 60 is not immediately discharged and accumulated in the accumulation part. Sludge or the like introduced into the inflow tube 44 is accumulated in the dehydration portion 50 while being accumulated in the accumulation portion 60 in turn.

Sludge, etc., which are then introduced, continue to flow into the inlet 44 and occupy most of the space inside the dewatering rod 51 of the dewatering portion 50, and the sludge transferred to the first stacking portion 60, for example. Is pushed out through the extruded part 70 and the sludge accumulated in the dewatering part 50 acts on the outside of the dewatering rods (51).

When the sludge or the like acts on the pressure in the dewatering portion 50, as shown in Figure 2b the dewatering rods 51 are expanded in length so that the middle portion between the end fixing tube 52 and the intermediate fixing tube 53 is convex. A gap is created between the dehydrating rods 51. The fluid substance contained in the sludge or the like is dewatered as a gap between the dewatering rods 51. Figure 2a and Figure 2b shows a cross-sectional state before and after receiving the pressure of the dewatering portion 50 of the filter press type dewatering apparatus according to the present invention.

At this time, when the heating unit 54 is operated, the fluid can be more reliably removed from the sludge by evaporating the fluid as well as dehydration of the fluid by the dehydration rod 51 supplied with heat. If the sludge contains impurities (such as waste PVC) that are soluble in heat, the temperature of the supply heat of the heating unit 54 may be increased to dissolve and discharge the impurities soluble in the heat to be separated from the solid substance.

In the dehydration portion, the flowable material is separated and the solid form material is transferred to the accumulation portion 60 and accumulated. In addition, the stacked solid form material is pushed by sludge, which is newly introduced and transported, and a series of processes that are discharged to the outside through the extruded part 70 is repeated.

Since the direction of installation of the sludge and the installation direction of the dewatering rod are in the same length direction, sludge and the like are not blocked in the gap of the dewatering rod, so it is not necessary to replace or clean the dewatering rod.

On the other hand, looking at the operation of the second embodiment of the present invention, the sludge supplied through the inlet pipe (41a) is introduced into the inlet 44. When the drive motor transmits power to the screw gear 45, the screw gear 45 is rotated, and accordingly the screw block 46 is moved horizontally to horizontally move the piston 47. Inflowed sludge etc. are compressed and conveyed by the piston 47.

The sludge to be conveyed is passed through the dewatering part 50 to the stacking part 60 as in the case of the first embodiment. In the dehydration portion, the fluid material is dewatered, and the solid substance is transferred to the accumulation portion 60 and accumulated. In addition, the stacked solid form material is pushed by sludge, which is newly introduced and transported, and a series of processes that are discharged to the outside through the extruded part 70 is repeated. The dehydration process of the flowable material is the same as that of the first embodiment described above.

When the fluid material is dewatered in the dewatering part, the fluid material is discharged through the drain pipe without splashing to the outside by the drain cover. When the absorbent material is filled inside the dewatering rod, the flowable material is filtered to discharge only the flowable material in a clear state.

The filter press type dehydration apparatus as described above may also be applied to the following cases.

When separating the flowable material from food waste and livestock manure, the flowable material such as water is evaporated along with dehydration while the heating unit 54 is operated to transfer the dewatering unit 50, thereby increasing the compression efficiency.

When separating waste PVC and other materials such as vinyl house and plastic, non-plastic materials such as sand, metal and wood mixed with waste PVC can be separated by melting and discharging the waste PVC. At this time, there is no need to separate the flowable material in advance.

When a screw conveyor is used to transport livestock manure or sludge, the outer casing of the screw conveyor is installed as a dehydration unit 50 configured as a dehydration rod, so that the transport and separation process can be performed simultaneously.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

As described above, in the filter press type dewatering device of the present invention, the rod-shaped dewatering rod, which is a dewatering means, is formed in the longitudinal direction in parallel with the moving direction of the sludge, and is arranged in a tightly closed shape, such that sludge or the like is in the gap for dewatering. It can be cleaned by itself while preventing clogging. In addition, it can withstand the pressure of the sludge, etc. during the transport of the sludge, it is possible to improve the dehydration efficiency through a minute gap between the dewatering rod.

It is possible to prevent clogging, self-cleaning, and no wear, so there is no need to replace the dewatering rod, and the life of the dewatering means can be extended by coating titanium on the surface of the dewatering rod.

By forming a drain cover on the outside of the dewatering rod and by installing a drain pipe at the bottom of the drain cover, it is possible to prevent the fluid from splashing upon discharge and to discharge the fluid through a separate drain pipe.

By dewatering the sludge in the state in which the absorbent is filled in the dewatering rod, the fluid can be filtered to discharge the clear fluid.

Claims (7)

In the filter press type dewatering apparatus for compressing and conveying the introduced sludge by the compression transfer means 40 and dehydrating the fluid material by the dehydration unit 50 to extrude the dried sludge, A driving motor 30 generating a driving force; A compression transfer means (40) connected to the drive motor (30) for compressing and transporting the sludge in the inflow tube (44); A dewatering unit 50 formed of a plurality of dewatering rods 51 next to the inflow tube 44 to dehydrate the fluid material among the sludge conveyed by the transfer screw 43 between the dewatering rods 51; A accumulation part 60 formed after the dehydration part 50 to accumulate sludge dehydrated with a fluid material; And Filter press type dewatering device characterized in that it comprises an extrusion unit 70 is formed after the stacking portion 60, the sludge being stacked is extruded to the outside of the body. The method according to claim 1, The compression transfer means 40 is made of a transfer screw, the filter press type dewatering device, characterized in that it is installed in the inlet while the end of the transfer screw is connected to the drive motor. The method according to claim 1, The compression transfer means 40, A screw gear 45 connected to the drive motor and rotating; A screw block 46 engaged with the screw gear 45 and horizontally moved as the screw gear 45 rotates; And Filter press type dewatering device characterized in that it comprises a piston 47 is connected to the screw block 46 and installed inside the inlet. The method according to claim 1, The dewatering part 50 is characterized in that a plurality of dehydration rods 51 are arranged in a circular form between both end fixing pipes 52, and the middle portion of the dewatering rods 51 arranged by the intermediate fixing tube 53 is fixed. Filter press type dewatering device. The method according to claim 4, A filter press type dewatering device, characterized in that a heating portion (54) is formed outside the end fixing pipe (52) to supply heat to the dewatering rod (51). The method according to claim 4, The drain cover 55 is wrapped on the outer side of the dewatering portion, the filter press type dewatering device, characterized in that the drain pipe 56 is formed in the lower portion of the drain cover (55). The method according to claim 4, The filter press type dewatering device, characterized in that the absorbent material 57 is filled inside the dewatering portion to filter the fluid material.

Images