Resin recovery mother liquor water filter

Abstract

The utility model relates to the technical field of resin recovery, and discloses a resin recovery mother liquor water filter which comprises a filter body and further comprises supporting legs arranged at the bottom of the filter body, the top of the rear side of the filter body is communicated with a first pipeline, and a supporting disc is welded to the top of an inner cavity of the filter body. A porous partition plate is arranged at the top of the supporting disc, a fiber bundle body is arranged in the porous partition plate, and a first water opening is formed in the bottom of the filter body; the cover plate is arranged at the top of the filter body. Firstly, the air cylinder extends out to drive the abutting hole disc to move upwards, so that the abutting hole disc makes contact with the bottom of the fiber bundle body to jack the fiber bundle body upwards, the fiber bundle body is attached to the inner wall of the filter body to form a filtering layer, and if a user needs to take out the porous partition plate and the fiber bundle body for maintenance, the pulling block is pushed towards one side to stretch the spring; at the moment, the inserting rods are stressed to move and break away from the interiors of the fixing blocks, and then the porous partition plates can be taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of resin recovery, in particular to a resin recovery mother liquor water filter. Background Technique

[0002] Most of the polymerization processes of polyvinyl chloride adopt the aqueous phase suspension polymerization process. A large amount of process wastewater will be generated during the production process, mainly centrifugal mother liquor. The process reaction of producing PVC by the suspension polymerization process is completed in the polymerization kettle. After the reaction, the slurry enters the centrifugal unit for solid-liquid separation. The wastewater discharged by centrifugation is the PVC centrifugal mother liquor. The centrifugal mother liquor contains a small amount of PVC particles, additives added during the polymerization process, residual reactants, etc.

[0003] In the resin recovery process, a mother liquor water filter is required. There are many current filtration methods, including fiber filters. However, in the use of existing fiber filters, it is very inconvenient to disassemble and maintain the fiber filter media. Although an existing fiber filter is provided with a backwashing structure, the filter media still needs to be disassembled and maintained after long-term use, thus increasing the maintenance time and affecting the maintenance efficiency. Moreover, in existing fiber filters, the filter layer is usually formed by fiber bundles. This structure cannot generate resistance on the movable orifice plate when the water flow is small, and thus cannot compact the fiber filaments, resulting in an insufficiently tight filter layer. Content of the Utility Model

[0004] The purpose of the utility model is to provide a resin recovery mother liquor water filter to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A resin recovery mother liquor water filter, including a filter body, further including:

[0006] Support legs arranged at the bottom of the filter body. The top of the rear side of the filter body is communicated with a first pipeline. A support plate is welded at the top of the inner cavity of the filter body. A porous partition plate is arranged on the top of the support plate. A fiber bundle body is arranged inside the porous partition plate. A first water port is arranged at the bottom of the filter body.

[0007] A cover plate arranged at the top of the filter body. Fixed blocks are fixedly connected to both sides of the top of the porous partition plate. Positioning members for positioning the fixed blocks are arranged on both sides of the top of the support plate. The positioning member includes a connecting plate.

[0008] Preferably, the connecting plate is fixed to the top of the support plate. A spring is fixedly connected to one side of the connecting plate. A pull block is fixedly connected to one side of the spring. An insertion rod is fixedly connected to one side of the pull block.

[0009] Preferably, one side of the cover plate is installed with the filter body by screws, and a handle is fixedly connected between the two fixing blocks.

[0010] Preferably, the bottom of the inner cavity of the filter body is communicated with an anti-washing air distribution device and an anti-washing air inlet pipe, and a plurality of air distribution branch pipes are arranged at the top of the anti-washing air distribution device.

[0011] Preferably, a positioning orifice plate is fixedly connected to the bottom of the inner cavity of the anti-washing air distribution device, and a second pipeline is arranged at the top of one side of the filter body.

[0012] Preferably, extension frames are fixedly connected to both sides of the bottom of the inner cavity of the filter body, a cylinder is hinged to one side of the extension frame, and a pressing orifice plate is hinged between the opposite sides of the two cylinders.

[0013] Preferably, a reinforcing block is fixedly connected to the bottom of the extension frame, and the side of the reinforcing block close to the inner wall of the filter body is fixedly connected to the inner wall of the filter body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] When the user needs to press the fiber bundle body to improve the filtration accuracy, the present utility model first drives the pressing orifice plate to move upward by the extension of the cylinder, so as to contact the bottom of the fiber bundle body and jack it upward, so that the fiber bundle body fits the inner wall of the filter body to form a filter layer. If the user needs to take out and maintain the porous partition plate and the fiber bundle body, by pushing the pull block to one side to stretch the spring, at this time the insertion rod will be forced to move out of the inside of the fixing block, and then the porous partition plate can be taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the resin recovery mother liquor water filter provided by the present utility model;

[0017] Figure 2 is a schematic unfolded structural diagram of the cover plate provided by the present utility model;

[0018] Figure 3 is a schematic cross-sectional structural diagram of the filter body provided by the present utility model;

[0019] Figure 4 is provided by the present utility model Figure 3 The enlarged structural diagram at A in.

[0020] In the figure: 1, filter body; 2, support leg; 3, first pipeline; 4, support disk; 5, porous partition board; 6, fiber bundle body; 7, first water inlet; 8, cover plate; 9, fixing block; 10, positioning member; 101, connecting plate; 102, spring; 103, pulling block; 104, inserting rod; 11, handle; 12, backwashing air distribution device; 13, backwashing inlet pipe; 14, air distribution branch pipe; 15, positioning orifice plate; 16, second pipeline; 17, extension bracket; 18, cylinder; 19, pressing orifice plate; 20, reinforcement block. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 As shown, a resin recovery mother liquor water filter includes a filter body 1, and further includes: support legs 2 arranged at the bottom of the filter body 1, which facilitate the support of the filter body 1; the top of the rear side of the filter body 1 is communicated with a first pipeline 3, through which water is conveniently injected; a support disk 4 is welded to the top of the inner cavity of the filter body 1, a porous partition board 5 is arranged on the top of the support disk 4, and the porous partition board 5 facilitates the installation of the fiber bundle body 6. The fiber bundle body 6 fits against the inner wall of the filter body 1 to achieve the effect of a filter layer. The fiber bundle body 6 is arranged inside the porous partition board 5, and a first water inlet 7 is arranged at the bottom of the filter body 1, through which the treated water is conveniently discharged.

[0023] A cover plate 8 is arranged on the top of the filter body 1, which facilitates the maintenance of the inside of the filter body 1. Fixing blocks 9 are fixedly connected to both sides of the top of the porous partition board 5, and positioning members 10 for positioning the fixing blocks 9 are arranged on both sides of the top of the support disk 4. The positioning member 10 includes a connecting plate 101.

[0024] The connecting plate 101 is fixed to the top of the support disk 4. A spring 102 is fixedly connected to one side of the connecting plate 101, and a pulling block 103 is fixedly connected to one side of the spring 102. When the user needs to take out the porous partition board 5 and the fiber bundle body 6 for maintenance, by pushing the pulling block 103 to one side to stretch the spring 102, at this time, the inserting rod 104 will be forced to move out of the inside of the fixing block 9, and then the porous partition board 5 can be taken out to carry out maintenance work on the fiber bundle body 6. An inserting rod 104 is fixedly connected to one side of the pulling block 103.

[0025] One side of the cover plate 8 is installed with the filter body 1 by screws. A handle 11 is fixedly connected between two fixing blocks 9. The handle 11 and the fixing blocks 9 cooperate to facilitate the removal of the porous partition plate 5. The bottom of the inner cavity of the filter body 1 is communicated with an air backwashing device 12 and a backwashing air inlet pipe 13. A plurality of air distribution branch pipes 14 are arranged at the top of the air backwashing device 12. The backwashing air enters the air backwashing device 12 through the backwashing air inlet pipe 13, and the backwashing air in the air backwashing device 12 is discharged from the outlets of different air distribution branch pipes 14 through the air distribution branch pipes 14 in sequence, which improves the uniformity of the distribution of the backwashing air injected into the filter body 1, avoids incomplete backwashing cleaning caused by uneven distribution, ensures the cleaning of the inside of the filter body 1 and the fiber bundle body 6. A positioning orifice plate 15 is fixedly connected to the bottom of the inner cavity of the air backwashing device 12. A second pipeline 16 is arranged at the top of one side of the filter body 1.

[0026] Extension frames 17 are fixedly connected to both sides of the bottom of the inner cavity of the filter body 1. One side of the extension frame 17 is hinged with a cylinder 18. By hinging the cylinder 18 with the extension frame 17, the two cylinders 18 can be coordinated to lift the pressing orifice plate 19 to compress the fiber bundle body 6, thereby improving the filtration accuracy and density. A pressing orifice plate 19 is hinged between the opposite sides of the two cylinders 18. A reinforcing block 20 is fixedly connected to the bottom of the extension frame 17. The fixed connection between the reinforcing block 20 and the filter body 1 can improve the connection strength between the extension frame 17 and the inner wall of the filter body 1. One side of the reinforcing block 20 close to the inner wall of the filter body 1 is fixedly connected to the inner wall of the filter body 1.

[0027] Working principle: First, when the user needs to press the fiber bundle body 6 to improve the filtration accuracy, first, the cylinder 18 extends to drive the pressing orifice plate 19 to move upward, so as to contact the bottom of the fiber bundle body 6 and lift it upward, so that the fiber bundle body 6 fits against the inner wall of the filter body 1 to form a filter layer. When the user needs to remove and maintain the porous partition plate 5 and the fiber bundle body 6, first, disassemble the cover plate 8 from the filter body 1 by removing the screws. By pushing the pull block 103 to one side to stretch the spring 102, at this time, the insertion rod 104 will be forced to move out of the inside of the fixing block 9, and then the porous partition plate 5 can be taken out to maintain the fiber bundle body 6. The backwashing air enters the air backwashing device 12 through the backwashing air inlet pipe 13, and the backwashing air in the air backwashing device 12 is discharged from the outlets of different air distribution branch pipes 14 through the air distribution branch pipes 14 in sequence, which improves the uniformity of the distribution of the backwashing air injected into the filter body 1, avoids incomplete backwashing cleaning caused by uneven distribution, and ensures the cleaning of the inside of the filter body 1 and the fiber bundle body 6.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0029] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resin recovery mother liquor water filter, comprising a filter body (1), characterized in that: Also includes: A support leg (2) is arranged at the bottom of the filter body (1); the top of the rear side of the filter body (1) is connected to a first pipe (3); the top of the inner cavity of the filter body (1) is welded with a support plate (4); a porous partition plate (5) is arranged on the top of the support plate (4); a fiber bundle body (6) is arranged inside the porous partition plate (5); and a first water inlet (7) is arranged at the bottom of the filter body (1); A cover plate (8) is arranged on the top of the filter body (1), and fixing blocks (9) are fixedly connected to both sides of the top of the porous partition plate (5), and positioning members (10) for positioning the fixing blocks (9) are arranged on both sides of the top of the support plate (4), and the positioning members (10) include connecting plates (101).

2. A resin recovery mother liquor water filter according to claim 1, characterized in that: The connecting plate (101) is fixed to the top of the supporting plate (4); one side of the connecting plate (101) is fixedly connected to a spring (102); one side of the spring (102) is fixedly connected to a pull block (103); and one side of the pull block (103) is fixedly connected to an insertion rod (104).

3. A resin recovery mother liquor water filter according to claim 1, characterized in that: One side of the cover plate (8) is mounted on the filter body (1) via screws, and a handle (11) is fixedly connected between the two fixing blocks (9).

4. A resin recovery mother liquor water filter according to claim 1, characterized in that: The bottom of the inner cavity of the filter body (1) is connected to a backwash air distribution device (12) and a backwash air inlet pipe (13), and a plurality of air distribution branch pipes (14) are arranged on the top of the backwash air distribution device (12).

5. A resin recovery mother liquor water filter according to claim 4, characterized in that: A positioning orifice plate (15) is fixedly connected to the bottom of the inner cavity of the backwash air distribution device (12), and a second pipeline (16) is arranged on the top of one side of the filter body (1).

6. A resin recovery mother liquor water filter according to claim 1, characterized in that: An extension frame (17) is fixedly connected to both sides of the bottom of the inner cavity of the filter body (1), a cylinder (18) is hingedly connected to one side of the extension frame (17), and a pressure hole plate (19) is hingedly connected between opposite sides of the two cylinders (18).

7. A resin recovery mother liquor water filter according to claim 6, characterized in that: A reinforcing block (20) is fixedly connected to the bottom of the extension frame (17), and a side of the reinforcing block (20) close to the inner wall of the filter body (1) is fixedly connected to the inner wall of the filter body (1).

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