Filter pressing device for aluminum sulfate production

Abstract

The utility model discloses a filter pressing device for aluminum sulfate production, and relates to the technical field of aluminum sulfate production. The device comprises a base, a filter box is fixedly arranged on the upper surface of the base, a liquid inlet pipe is arranged on the side face of the filter box, a fixing plate is fixedly arranged on the upper surface of the base, an electric telescopic rod is fixedly arranged on the upper surface of the fixing plate, and the output end of the electric telescopic rod penetrates through the fixing plate. An output end of the electric telescopic rod is provided with a filter pressing plate, the filter pressing plate is attached to the inner surface of the filter box in a sliding mode, the filter box is connected with a filter residue taking assembly, the filter residue taking assembly comprises a through groove, and the through groove is formed in the side face of the filter box. And the rectangular inserting blocks are separated from the inserting holes, limiting on the side baffles is relieved, the side baffles can be moved through the pulling blocks, the fixing frame is pulled out from the interior of the through groove, and therefore slag cakes in the filter screen plate and the fixing frame are treated.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum sulfate production, in particular to a pressure filtration device for aluminum sulfate production. Background Technique

[0002] In industrial production of aluminum sulfate, bauxite and sulfuric acid are used as raw materials. At a certain temperature and pressure, alumina in the bauxite reacts with sulfuric acid to form aluminum sulfate. After the reaction, a polyacrylamide settling agent is added to the aluminum sulfate solution to settle the residue. After settling, the supernatant is an aluminum sulfate solution with a certain concentration. After separation from the residue, it is placed in an evaporator and heated and evaporated to a certain concentration, then cooled and crystallized to obtain solid aluminum sulfate. The residue is collected and processed after washing and pressure filtration. During the pressure filtration process, an aluminum sulfate pressure filtration device is required to perform pressure filtration on the residue.

[0003] When the existing equipment is in use, it cannot effectively collect the aluminum sulfate filter cake centrally, thereby reducing the efficiency of pressing out the filter cake and having an adverse impact on the pressure filtration device for aluminum sulfate production. Moreover, when the filter screen of the existing equipment is corroded, the whole equipment needs to be replaced, increasing the use cost. Content of the Utility Model

[0004] In order to solve the problems that when the existing equipment is in use, it cannot effectively collect the aluminum sulfate filter cake centrally, thereby reducing the efficiency of pressing out the filter cake and having an adverse impact on the pressure filtration device for aluminum sulfate production, and when the filter screen of the existing equipment is corroded, the whole equipment needs to be replaced, increasing the use cost; the purpose of the utility model is to provide a pressure filtration device for aluminum sulfate production.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A pressure filtration device for aluminum sulfate production, including a base, on the upper surface of the base is fixedly provided a filtration box, on the side of the filtration box is provided a liquid inlet pipe, on the upper surface of the base is fixedly provided a fixing plate, on the upper surface of the fixing plate is fixedly provided an electric telescopic rod, the output end of the electric telescopic rod penetrates through the fixing plate, and at the output end of the electric telescopic rod is provided a pressure filtration plate, the pressure filtration plate is slidably attached to the inner surface of the filtration box, and a filtration and slag removal assembly is connected to the filtration box;

[0006] The filtering and slag removing assembly includes a through groove which is opened on the side surface of the filtering box. A fixed frame is movably inserted into the through groove. A filter screen plate is detachably arranged on the lower surface of the fixed frame. A support bar is fixedly arranged on the side surface of the fixed frame. Support grooves are opened on both the through groove and the inner surface of the filtering box. The support bar is movably attached to the inner surface of the support groove. A side baffle is fixedly arranged on one side of the fixed frame. A jack is opened on the side surface of the side baffle. A hollow block is fixedly arranged on the side surface of the filtering box. A through slot is opened on the side surface of the hollow block. A spring is fixedly arranged on the inner surface of the hollow block. There are six springs which are symmetrically arranged between the inner surface of the hollow block and a rectangular insertion block. The other end of the spring is fixedly provided with the rectangular insertion block which is movably inserted into the jack. A moving block is slidably arranged in the through slot and is fixedly connected with the rectangular insertion block. A cap nut is threadedly connected to the liquid inlet pipe. The cap nut and the liquid inlet pipe are connected through the cooperation of internal thread and external thread. An outlet pipe is fixedly arranged on the side surface of the filtering box. An electric valve is connected to the outlet pipe. A sealing strip is fixedly arranged on one side of the side baffle. A sealing groove is opened on the side surface of the filtering box. The sealing strip is movably attached to the inner surface of the sealing groove.

[0007] Preferably, a U-shaped block is fixedly arranged on the side surface of the filter screen plate. A U-shaped groove is opened on the lower surface of the fixed frame. The U-shaped block is movably attached to the inner surface of the U-shaped groove. An installation bolt is threadedly inserted into the lower surface of the U-shaped block. The end of the installation bolt is threadedly inserted into the U-shaped groove.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] 1. When it is necessary to remove the residue in the utility model, the moving block can be pulled to move, the rectangular insertion block disengages from the jack, the limit on the side baffle is released, and the side baffle can be moved through the pull block to draw out the fixed frame from the inside of the through groove, so as to process the filter cake in the filter screen plate and the fixed frame.

[0010] 2. When the filter screen plate is damaged and cannot perform the filtering work in the utility model, by rotating the installation bolt to make its end disengage from the U-shaped groove, the old filter screen plate can be disassembled. The U-shaped block on the side surface of the new filter screen plate can be placed into the U-shaped groove, and the new filter screen plate can be connected to the fixed frame with the cooperation of the new installation bolt, which is convenient for replacement and reduces the replacement cost at the same time. Description of the Drawings

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] Figure 2 It is a schematic structural diagram of the filter and slag extraction assembly of the present invention.

[0014] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in it.

[0015] Figure 4 It is a schematic structural diagram of the U-shaped block of the present invention.

[0016] Figure 5 It is a schematic structural diagram of the filter pressing plate of the present invention.

[0017] In the figure: 1. Base; 11. Filter box; 12. Liquid inlet pipe; 13. Spinning cap; 14. Liquid outlet pipe; 15. Electric valve; 2. Fixed plate; 21. Electric telescopic rod; 22. Filter pressing plate; 3. Filter and slag extraction assembly; 31. Through groove; 311. Support groove; 32. Fixed frame; 321. Support bar; 33. Filter mesh plate; 34. Side baffle; 341. Pulling block; 35. Jack; 36. Sealing strip; 361. Sealing groove; 37. Hollow block; 371. Through slot; 38. Spring; 381. Rectangular insertion block; 39. Moving block; 391. Pulling opening; 41. U-shaped block; 42. U-shaped groove; 43. Installation bolt. Specific embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0019] Embodiment: As Figures 1-5As shown in the figure, the utility model provides a filter pressing device for aluminum sulfate production, including a base 1. The upper surface of the base 1 is fixedly provided with a filter box 11. A liquid inlet pipe 12 is arranged on the side surface of the filter box 11. The upper surface of the base 1 is fixedly provided with a fixing plate 2. The upper surface of the fixing plate 2 is fixedly provided with an electric telescopic rod 21. The output end of the electric telescopic rod 21 penetrates through the fixing plate 2. The output end of the electric telescopic rod 21 is provided with a filter pressing plate 22. The filter pressing plate 22 is slidably attached to the inner surface of the filter box 11. A filter and slag removal assembly 3 is connected to the filter box 11. A liquid containing residues can be introduced into the filter box 11 through the liquid inlet pipe 12. The liquid can be filtered through a filter mesh plate 33. The residues in the liquid are located above the filter mesh plate 33. The filtered liquid falls to the bottom of the filter box 11. When it is necessary to press-filter the residues, the electric telescopic rod 21 can be started to make its output end move downward. The filter pressing plate 22 enters the fixed frame 32 to press-filter the residues and discharge the liquid in the residues;

[0020] The filter and slag removal assembly 3 includes a through groove 31. The through groove 31 is opened on the side surface of the filter box 11. A fixed frame 32 is movably inserted into the through groove 31. The lower surface of the fixed frame 32 is detachably provided with a filter mesh plate 33. A support strip 321 is fixedly arranged on the side surface of the fixed frame 32. Support grooves 311 are opened on the inner surfaces of both the through groove 31 and the filter box 11. The support strip 321 is movably attached to the inner surface of the support groove 311. A side baffle 34 is fixedly arranged on one side of the fixed frame 32. A jack 35 is opened on the side surface of the side baffle 34. A hollow block 37 is fixedly arranged on the side surface of the filter box 11. A through slot 371 is opened on the side surface of the hollow block 37. A spring 38 is fixedly arranged on the inner surface of the hollow block 37. The other end of the spring 38 is fixedly provided with a rectangular insertion block 381. The rectangular insertion block 381 is movably inserted into the jack 35. A moving block 39 is slidably arranged in the through slot 371. The moving block 39 is fixedly connected to the rectangular insertion block 381. When it is necessary to take out the residues, the moving block 39 can be pulled to move, and the rectangular insertion block 381 is separated from the jack 35 to release the limit on the side baffle 34. The side baffle 34 can be moved through a pull block 341 to pull out the fixed frame 32 from the inside of the through groove 31, so as to process the filter mesh plate 33 and the filter cake in the fixed frame 32;

[0021] The liquid inlet pipe 12 is threadedly connected with a screw cap 13, and the screw cap 13 is connected to the liquid inlet pipe 12 by means of internal and external threads to seal the liquid inlet pipe 12. A liquid outlet pipe 14 is fixedly provided on the side of the filter box 11, and an electric valve 15 is connected to the liquid outlet pipe 14 to facilitate liquid discharge. A sealing strip 36 is fixedly provided on one side of the side baffle 34, and a sealing groove 361 is provided on the side of the filter box 11. The sealing strip 36 and the inner surface of the sealing groove 361 are movably fitted to improve the sealing after connection. Two pull blocks 341 are fixedly provided on one side of the side baffle 34. The two pull blocks 341 are symmetrically arranged on one side of the side baffle 34 to assist the movement of the side baffle 34. A pull opening 391 is provided on the side of the moving block 39 to assist the movement of the moving block 39. Six springs 38 are provided, and the springs 38 are symmetrically arranged between the inner surface of the hollow block 37 and the rectangular plug block 381 to improve the stability of the connection.

[0022] A U-shaped block 41 is fixedly provided on the side of the filter screen plate 33, and a U-shaped groove 42 is opened on the lower surface of the fixing frame 32. The U-shaped block 41 is movably fitted with the inner surface of the U-shaped groove 42, and a mounting bolt 43 is threadedly inserted on the lower surface of the U-shaped block 41. The end of the mounting bolt 43 is threadedly inserted in the U-shaped groove 42. When the filter screen plate 33 is damaged and cannot perform filtering work, the mounting bolt 43 can be rotated to disengage its end from the U-shaped groove 42, so that the old filter screen plate 33 can be removed, and the U-shaped block 41 on the side of the new filter screen plate 33 can be put into the U-shaped groove 42, and the new filter screen plate 33 can be connected to the fixing frame 32 with the help of the new mounting bolt 43, which facilitates replacement and reduces replacement costs.

[0023] Working principle: When the utility model is in use, liquid containing residues can be introduced into the filter box 11 through the liquid inlet pipe 12, and the liquid can be filtered through the filter screen plate 33. The residues in the liquid are located above the filter screen plate 33, and the filtered liquid falls on the bottom of the filter box 11. However, when the residue needs to be filtered, the output end of the electric telescopic rod 21 can be moved downward by starting the electric telescopic rod 21, and the filter plate 22 enters the fixed frame 32 to filter the residue and discharge the liquid in the residue.

[0024] When the residue needs to be taken out, the moving block 39 can be pulled to move, and the rectangular plug block 381 can be disengaged from the plug hole 35, thereby releasing the limit of the side baffle 34. The side baffle 34 can be moved by pulling the block 341, and the fixed frame 32 can be pulled out from the inside of the through groove 31, so as to process the residue cake in the filter screen plate 33 and the fixed frame 32;

[0025] When the filter screen plate 33 is damaged and cannot perform the filtering work, by rotating the mounting bolt 43 so that its end disengages from the U-shaped groove 42, the old filter screen plate 33 can be removed. The U-shaped block 41 on the side of the new filter screen plate 33 can be placed into the U-shaped groove 42, and the new filter screen plate 33 can be connected to the fixed frame 32 with the cooperation of the new mounting bolt 43, which facilitates replacement and reduces the replacement cost at the same time.

[0026] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A filter press device for aluminum sulfate production, comprising a base (1), characterized in that: A filter box (11) is fixedly provided on the upper surface of the base (1), a liquid inlet pipe (12) is provided on the side of the filter box (11), a fixed plate (2) is fixedly provided on the upper surface of the base (1), an electric telescopic rod (21) is fixedly provided on the upper surface of the fixed plate (2), an output end of the electric telescopic rod (21) passes through the fixed plate (2), a filter press plate (22) is provided at the output end of the electric telescopic rod (21), the filter press plate (22) is slidably fitted with the inner surface of the filter box (11), and a slag filtering assembly (3) is connected to the filter box (11); The filtering and removing residue assembly (3) comprises a through groove (31), the through groove (31) being provided on the side of the filter box (11), a fixing frame (32) being movably inserted in the through groove (31), a filter screen plate (33) being detachably provided on the lower surface of the fixing frame (32), a supporting bar (321) being fixedly provided on the side of the fixing frame (32), a supporting groove (311) being provided on the inner surface of the through groove (31) and the filter box (11), the supporting bar (321) being movably fitted with the inner surface of the supporting groove (311), and a side stop being fixedly provided on one side of the fixing frame (32). A plate (34) is provided, a plug hole (35) is provided on the side of the side baffle plate (34), a hollow block (37) is fixedly provided on the side of the filter box (11), a through groove (371) is provided on the side of the hollow block (37), a spring (38) is fixedly provided on the inner surface of the hollow block (37), a rectangular plug block (381) is fixedly provided on the other end of the spring (38), the rectangular plug block (381) is movably inserted in the plug hole (35), a moving block (39) is slidably provided in the through groove (371), and the moving block (39) is fixedly connected to the rectangular plug block (381).

2. A filter press device for aluminum sulfate production according to claim 1, characterized in that: A U-shaped block (41) is fixedly provided on the side of the filter screen plate (33); a U-shaped groove (42) is provided on the lower surface of the fixing frame (32); the U-shaped block (41) is movably fitted with the inner surface of the U-shaped groove (42); a mounting bolt (43) is threadedly inserted on the lower surface of the U-shaped block (41); and the end of the mounting bolt (43) is threadedly inserted in the U-shaped groove (42).

3. A filter press device for aluminum sulfate production according to claim 1, characterized in that: The liquid inlet pipe (12) is threadedly connected with a screw cap (13), and the screw cap (13) and the liquid inlet pipe (12) are matched and connected via internal threads and external threads.

4. A filter press device for aluminum sulfate production according to claim 1, characterized in that: A liquid outlet pipe (14) is fixedly provided on the side of the filter box (11), and an electric valve (15) is connected to the liquid outlet pipe (14).

5. A filter press device for aluminum sulfate production according to claim 1, characterized in that: A sealing strip (36) is fixedly provided on one side of the side baffle (34), a sealing groove (361) is provided on the side of the filter box (11), and the sealing strip (36) is movably fitted to the inner surface of the sealing groove (361).

6. A filter press device for aluminum sulfate production according to claim 1, characterized in that: Two pull blocks (341) are fixedly provided on one side of the side baffle (34), and the two pull blocks (341) are symmetrically arranged on one side of the side baffle (34).

7. A filter press device for aluminum sulfate production according to claim 1, characterized in that: A draw opening (391) is provided on the side of the moving block (39).

8. A filter press device for aluminum sulfate production according to claim 1, characterized in that: There are six springs (38), and the springs (38) are symmetrically arranged between the inner surface of the hollow block (37) and the rectangular plug block (381).

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