Swill extrusion type secondary filtering equipment

Abstract

The swill extrusion type secondary filtering equipment comprises a filtering barrel, a hanging basket is installed in the filtering barrel in a supporting mode, the hanging basket is of a frame structure, filtering cloth is detachably installed on the inner side wall of the hanging basket, a separation layer is formed between the outer side wall of the hanging basket and the inner side wall of the filtering barrel, and the position, corresponding to the separation layer, of the filtering barrel is communicated with a liquid discharging pipe. The filter barrel is communicated with a liquid injection pipe corresponding to the upper side of the hanging basket; the liquid injection pipe is connected with a booster pump in series. After the filter cloth is used for a period of time, filter residues are continuously increased, filter holes are blocked, and the filtering efficiency is influenced, when the pressure value of a liquid injection pipe reaches a certain threshold value, it is indicated that the filter cloth is blocked seriously, the filter cloth needs to be replaced or cleaned, the filter cloth is detachably installed on a filter barrel through a hanging basket, the filter cloth is of a replaceable structure, and the hanging basket serves as a structural support. The filter cloth can be continuously used after being detached and replaced, so that the cost is saved, and the secondary fine filtering efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen waste treatment equipment, in particular to a swill squeezing type secondary filtering device. Background Art

[0002] When kitchen waste is transported to the factory workshop for centralized processing, it not only needs to be screened, but also needs to be separated into solid and liquid, and separated into residue and swill. Swill is also mixed with oil and water, so the recycling direction is different. The residue is continuously fermented and later made into feed, fertilizer, etc. The swill mixed with oil and water is used for oil-water separation to obtain bio-oil. The remaining swill is continuously fermented and discharged after meeting the standards.

[0003] When kitchen waste is separated into solid and liquid, it is separated through a filter cartridge. In order to improve efficiency, it is pushed by a spiral pusher. The side wall of the filter cartridge has filter holes. When the kitchen waste moves in the filter cartridge, the corresponding swill is filtered through the filter holes, and the filter residue is discharged from the end of the filter cartridge. The filter cartridge used here should not have a large filter hole. If it is too large, it is easy for fine filter residue to pass through, resulting in too high a residue content in the swill. If the filter hole is too small, the residue is easy to clog the filter hole, affecting the normal filtration.

[0004] Under the condition of controlling the size of the filter pores, the residue content in the separated swill is inevitable. The swill needs to be finely filtered again in the subsequent oil-water separation to filter out the remaining residue. This step of filtration requires the use of filter cloth or filter screen with smaller pores. Utility Model Content

[0005] The utility model aims to provide a swill squeezing type secondary filtering device to solve the problem of easy clogging of filter holes and low filtering efficiency during the filter cloth type fine filtering process.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] A swill squeezing type secondary filtering device comprises a filtering barrel, wherein a hanging basket is supported and installed inside the filtering barrel;

[0008] The upper side of the hanging basket is an open side, the hanging basket is a frame structure, the inner wall is detachably mounted with a filter cloth, a separation layer is formed between the outer wall of the hanging basket and the inner wall of the filter barrel, a drainage pipe is connected to the position of the filter barrel corresponding to the separation layer, and a liquid injection pipe is connected to the filter barrel corresponding to the upper side of the hanging basket;

[0009] The injection pipe is connected in series with a booster pump.

[0010] Furthermore, the inner wall of the filter barrel has a ring-shaped support frame, the outer ring side of the support frame is fixed to the inner wall of the filter barrel, and the inner ring side of the support frame supports the hanging basket; the upper side of the filter barrel is an open side and is sealed by a sealing cover.

[0011] Furthermore, the hanging basket includes a circular bottom plate and a first annular frame, first support rods are provided between the inner ring side of the first frame and the side of the bottom plate, the first support rods are evenly arranged in a ring shape, and the bottom plate has hollow holes.

[0012] Furthermore, the opening side of the hanging basket has a second frame, the second frame covers the first frame, the second frame has a pressure ring at a position corresponding to the bottom plate, and a second support rod is arranged between the second frame and the pressure ring. The first frame has a rod sleeve on the side for installing a lifting ring.

[0013] The utility model has the following beneficial effects: after the filter cloth has been used for a period of time, the filter residue continues to increase and the filter holes are blocked, affecting the filtering efficiency. When the pressure value of the injection pipe reaches a certain threshold, it indicates that the filter cloth is seriously blocked and needs to be replaced or cleaned. The filter cloth is detachably installed on the filter barrel through a hanging basket. The filter cloth itself is a replaceable structure. The hanging basket serves as a structural support. After the filter cloth is disassembled and replaced, it can be continuously used, saving costs and greatly improving the secondary fine filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0015] Figure 1 : Schematic diagram of the structure of the utility model.

[0016] Figure 2 : Schematic diagram of the overall structure of the utility model hanging basket.

[0017] Figure 3 : Schematic diagram of the disassembly structure of the hanging basket of the utility model.

[0018] In the accompanying drawings, the list of components represented by each reference numeral is as follows: filter barrel 1, hanging basket 2, filter cloth 5, drain pipe 11, injection pipe 12, booster pump 3, support frame 13, sealing cover 4, first frame 21, bottom plate 22, first support rod 23, second frame 6, pressure ring 61, second support rod 62, lifting ring 24. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] like Figure 1 Shown is a swill squeezing type secondary filtering device, comprising a filter barrel 1, a cylindrical barrel structure, and a hanging basket 2 supported and installed inside the filter barrel 1; the hanging basket is also a barrel structure and is coaxially arranged with the filter barrel.

[0021] The upper side of the hanging basket 2 is an open side. The hanging basket 2 is a frame structure with hollow holes. The inner wall is detachably mounted with a filter cloth 5. A separation layer is formed between the outer wall of the hanging basket 2 and the inner wall of the filter barrel 1. A drainage pipe 11 is connected to the position of the filter barrel 1 corresponding to the separation layer. The filter barrel 1 is connected to a liquid injection pipe 12 corresponding to the upper side of the hanging basket 2.

[0022] The liquid injection pipe 12 is connected in series with the booster pump 3 .

[0023] Compared with the filtration method of filter holes, the filter cloth used for filtration has a smaller filtration pore size, which can filter the filter residue more finely. Since the filter holes are smaller, the filtration resistance is greater, so the corresponding injection pipe is connected in series with an additional pump to increase the injection pressure, and squeeze the swill through the filter cloth to improve the filtration efficiency.

[0024] After the filter cloth has been used for a period of time, the filter residue continues to increase and the filter holes are blocked, affecting the filtration efficiency. When the pressure value of the injection pipe reaches a certain threshold, it means that the filter cloth is seriously blocked and needs to be replaced or cleaned. The filter cloth is detachably installed on the filter barrel through a hanging basket. The filter cloth itself is a replaceable structure. The hanging basket serves as a structural support. It can be continuously used after disassembling and replacing the filter cloth, saving costs and greatly improving the secondary fine filtration efficiency.

[0025] like Figure 2-3 As shown: the inner wall of the filter barrel 1 has an annular support frame 13, the outer ring side of the support frame 13 is fixed to the inner wall of the filter barrel 1, and the inner ring side of the support frame 13 supports the hanging basket 2; the upper side of the filter barrel 1 is the opening side, and is sealed by the sealing cover 4. The sealing cover is an arc-shaped cover plate, which is used to seal the opening side of the filter barrel. The sealing cover and the corresponding opening side of the filter barrel are flange-type seals, which are quickly fixed by a locking fastener to ensure sealing, and at the same time, it is easy to disassemble the sealing cover and take out the hanging basket.

[0026] like Figure 3 As shown: the hanging basket 2 includes a circular bottom plate and an annular first frame 21, and a first support rod 23 is provided between the inner ring side of the first frame 21 and the side of the bottom plate 22. The first support rods 23 are evenly arranged in a ring, and the bottom plate 22 has hollow holes. The first support rods are densely arranged to provide support for the filter cloth, and the grid structure formed by the first support rods is equivalent to the filter hole, and the side wall and bottom of the corresponding hanging basket can be used for filtering, thereby increasing the filtering area.

[0027] The opening side of the hanging basket 2 has a second frame 6, which covers the first frame 21. The second frame 6 has a pressing ring 61 at the position corresponding to the bottom plate, and a second support rod 62 is arranged between the second frame 6 and the pressing ring 61. The second frame is used to compact the side of the filter cloth, and the bottom pressing ring is used to make the filter cloth and the bottom plate fit more closely. The first frame is connected to the pressing ring for detachable installation, which is convenient for replacing the filter cloth after disassembly. The side of the first frame 21 has a rod sleeve for installing a lifting ring 24. The lifting ring is convenient for lifting and disassembling the second frame and the pressing ring to separate them.

[0028] This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A swill squeezing type two-stage filtering device, characterized in that: It comprises a filter barrel (1), wherein a hanging basket (2) is supported and installed inside the filter barrel (1); The upper side of the hanging basket (2) is an open side. The hanging basket (2) is a frame structure. The inner wall is detachably mounted with a filter cloth (5). A separation layer is formed between the outer wall of the hanging basket (2) and the inner wall of the filter barrel (1). A drainage pipe (11) is connected to a position of the filter barrel (1) corresponding to the separation layer. The filter barrel (1) is connected to an injection pipe (12) corresponding to the upper side of the hanging basket (2). The liquid injection pipe (12) is connected in series with a booster pump (3).

2. The swill squeezing type secondary filtering device according to claim 1, characterized in that: The inner wall of the filter barrel (1) has an annular support frame (13); the outer ring side of the support frame (13) is fixed to the inner wall of the filter barrel (1); the inner ring side of the support frame (13) supports the hanging basket (2); the upper side of the filter barrel (1) is an open side and is sealed by a sealing cover (4).

3. The swill squeezing type secondary filtering device according to claim 1, characterized in that: The hanging basket (2) comprises a circular bottom plate and an annular first frame (21); first support rods (23) are provided between the inner ring side of the first frame (21) and the side of the bottom plate (22); the first support rods (23) are evenly arranged in an annular shape; and the bottom plate (22) has hollow holes.

4. The swill squeezing type secondary filtering device according to claim 3, characterized in that: The opening side of the hanging basket (2) is provided with a second frame (6), the second frame (6) covers the first frame (21), the second frame (6) has a pressure ring (61) at a position corresponding to the bottom plate, and a second support rod (62) is provided between the second frame (6) and the pressure ring (61).

5. The swill squeezing type secondary filtering device according to claim 4, characterized in that: The first frame (21) has a rod sleeve on its side for mounting a lifting ring (24).

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