A dust treatment device for phosphogypsum processing

Abstract

The application discloses a dust treatment device for phosphogypsum processing, and relates to the technical field of dust treatment devices, which comprises a spraying tower and a filter box, a gas inlet is arranged on the tower body of the spraying tower, a gas outlet is arranged on the top of the spraying tower, the filter box is arranged near the spraying tower, an air inlet pipe is arranged on the outer wall of the filter box, a flange elbow pipe is arranged on the outer wall of the filter box, the flange elbow pipe is fixedly connected with the gas inlet of the spraying tower, a dust hopper is arranged at the bottom of the filter box, a rectangular insertion slot is formed in the outer wall of the filter box, and the filter box further comprises an assembling plate which is fixedly installed on the inner wall of the filter box. The sealing effect is enhanced through the extrusion of the sealing ring, dust-containing gas leakage is avoided, the stability of the limiting is enhanced through the close combination of the wooden plug and the positioning groove, and the filter plate can be kept stable under the impact of airflow.

Description

Technical Field

[0001] This invention relates to the field of dust treatment equipment technology, specifically a dust treatment device for phosphogypsum processing. Background Technology

[0002] The dust treatment device for phosphogypsum processing is a purification device designed for dust-generating environments such as phosphogypsum crushing, conveying, and stockpiling. It adopts a spray washing process to efficiently capture and purify dust-containing gases, ultimately achieving dust pollution control and optimization of the working environment in phosphogypsum processing scenarios.

[0003] Patent publication number CN223337060U relates to a dust treatment device for phosphogypsum processing, including a spray tower, a filter box, an intercepting net, and a spray pipe. The filter box is connected to one side of the spray tower via a connecting port, and an air inlet channel is provided at the top of one side of the filter box. An intercepting net is located in the center of the filter box, and a lead screw is installed inside the filter box on one side of the intercepting net. A drive block is sleeved on the lead screw, and a cleaning brush is provided on one side of the drive block. A drive motor is fixed to the top of the filter box, and the output end of the drive motor is connected to the lead screw. A spray pipe is located at the top of the spray tower, and spray nozzles are evenly distributed at the bottom of the spray pipe. This patent, by installing a filter box, spray tower, air inlet channel, intercepting net, lead screw, drive motor, drive block, cleaning brush, and dust discharge pipe, can automatically clean the intercepting net, reducing the replacement frequency and thus improving dust treatment efficiency.

[0004] The aforementioned patent allows for automatic cleaning of the interception net, reducing the frequency of replacement. However, if the sealing structure is not properly installed during the maintenance and installation of the interception net, gaps may form between the parts. Dust generated during the processing of phosphogypsum can leak through these gaps. The leaked dust can not only pollute the workshop environment but may also be inhaled by on-site workers, causing serious harm to their health. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dust treatment device for phosphogypsum processing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dust treatment device for phosphogypsum processing, comprising a spray tower and a filter box. The spray tower has a gas inlet on its body and a gas outlet on its top. The filter box is located near the spray tower, with an air inlet pipe and a flange bend on its outer wall, the flange bend being fixedly connected to the gas inlet of the spray tower. A dust hopper is located at the bottom of the filter box, and a rectangular slot is provided on the outer wall of the filter box. The device also includes: an assembly plate fixedly mounted on the inner wall of the filter box; and a filter plate tightly fitted to the inner wall of the assembly plate. Dust-laden gas moves upward from the bottom of the filter box, passing through the filter plate during its movement, and the filter plate effectively intercepts the dust. The filter system intercepts solid particles from the dust-laden gas. The intercepted solid particles naturally settle and are collected in the ash hopper below. A connecting plate is fixedly installed on the side of the filter plate near the rectangular slot, and the connecting plate fits tightly against the inner wall of the rectangular slot. A positioning groove is provided on the outer wall of the connecting plate, and a handle is provided on the side of the connecting plate away from the filter plate. A fixing seat is fixedly installed on the outer wall of the filter box, and an internal thread groove is provided on the inner wall of the fixing seat. A bolt is threaded into the internal thread groove. A wooden plug is fixedly installed at the end of the bolt near the connecting plate, and the wooden plug fits tightly against the inner wall of the positioning groove. Rotating the bolt causes it to move away from the connecting plate along the internal thread groove of the fixing seat. During this movement, the bolt simultaneously moves the wooden plug.

[0007] According to the above technical solution, a blind hole is provided on the side of the assembly plate near the connecting plate, and a cylindrical rod is inserted into the blind hole. The blind hole is used to realize the detachable insertion connection between the cylindrical rod and the assembly plate. Pulling out the cylindrical rod will release the contact between the cylindrical rod and the blind hole.

[0008] According to the above technical solution, a mounting plate is fixedly installed on the side of the cylindrical rod away from the assembly plate, and a sealing ring is provided on the side of the mounting plate away from the cylindrical rod. The mounting plate synchronously drives the sealing ring to move, thereby quickly completing the disassembly of the sealing ring. The mounting plate is tightly fitted to the outer wall of the assembly plate, and the sealing ring is tightly fitted to the outer wall of the connecting plate. The sealing ring is used to seal the gap between the assembly plate and the connecting plate.

[0009] According to the above technical solution, a sealing plate is fixedly installed on the outer wall of the assembly plate. The sealing plate is tightly fitted with the inner wall of the filter box, and the sealing plate can block the gas passing through the filter plate.

[0010] According to the above technical solution, the assembly plate is equipped with a leak-proof sealing device to improve the sealing effect, and the assembly plate is also equipped with a leak-proof sealing device to improve the safety of disassembly. The leak-proof sealing device includes a support base, an elastic telescopic rod, a movable plate, a rectangular plate, and a sealing plate. The elastic telescopic rod in the stretched state will immediately return to its original position, and its output end will pull the movable plate to move towards the rectangular slot. The support base is fixedly installed on the surface of the assembly plate, the elastic telescopic rod is fixedly installed on the inner wall of the support base, the movable plate is fixedly installed on the output end of the elastic telescopic rod, the rectangular plate is fixedly installed on the side of the movable plate near the filter plate, and the sealing plate is fixedly installed on the side of the rectangular plate near the filter plate. The sealing plate is in contact with the outer wall of the filter plate. The sealing plate in contact with the filter plate will apply a controllable auxiliary thrust to the filter plate during the displacement process, assisting the staff to quickly disassemble the filter plate.

[0011] According to the above technical solution, a buffer ring is fixedly installed on the outer wall of the rectangular plate. The impact force generated by the contact is effectively absorbed by the buffer ring, thereby avoiding direct collision. The size of the sealing plate is adapted to the inner wall contour of the rectangular slot.

[0012] According to the above technical solution, the leak-proof sealing device includes a hollow frame, a sliding rod, and a linkage plate. The hollow frame is fixedly installed on the surface of the assembly plate, and a guide groove is opened on the surface of the hollow frame. The sliding rod is slidably installed in the guide groove, and the linkage plate is fixedly installed on the circumferential surface of the sliding rod. A circular hole is opened on the surface of the linkage plate, and the linkage plate is fixedly connected to the circumferential surface of the output end of the elastic telescopic rod through the circular hole. When the output end of the elastic telescopic rod is reset, the linkage plate fixedly connected to its output end will move synchronously.

[0013] According to the above technical solution, multiple mounting seats are fixedly installed on the inner wall of the hollow frame, and elastic plates are fixedly installed on the inner walls of the multiple mounting seats. The bent elastic plates will generate continuous resistance to the linkage plate due to their own elastic restoring force.

[0014] This invention provides a dust treatment device for phosphogypsum processing. It has the following beneficial effects:

[0015] (1) The dust treatment device used in phosphogypsum processing has a connecting plate that squeezes the sealing ring. The squeezed sealing ring undergoes elastic deformation and fits tightly with the connecting plate to form an effective seal. The sealing effect is enhanced by squeezing the sealing ring, which can prevent the leakage of dust-containing gas. The tight fit between the wooden plug and the positioning groove enhances the stability of the limit and ensures that the filter plate remains stable under the impact of airflow.

[0016] (2) The dust treatment device used in phosphogypsum processing completely separates the wooden plug from the positioning groove, releases the limiting fixation of the connecting plate, and can release the limiting by rotating the bolt, while maintaining the threaded connection between the bolt and the fixed seat. This eliminates the need for re-aligning and tightening the bolt during subsequent installation, improving the flexibility and efficiency of filter plate loading and unloading. At the same time, the mounting plate will also drive the cylindrical rod to be pulled out of the blind hole, thereby quickly completing the disassembly of the sealing ring. The convenient disassembly of the sealing ring further improves the flexibility of the overall maintenance operation, effectively shortens the maintenance time of the staff, and provides a guarantee for the stability of continuous operation of the equipment.

[0017] (3) The dust treatment device used in phosphogypsum processing applies a controllable auxiliary thrust to the filter plate by the sealing plate, which helps the workers to quickly disassemble the filter plate. The tension of the elastic telescopic rod during reset is converted into an auxiliary thrust on the filter plate, which can effectively reduce the resistance caused by the dust adhering to the surface of the filter plate when the workers pull it out, and improve the disassembly efficiency. At the same time, the sealing plate and the rectangular slot fit tightly together to form a seal. Through the cooperation of the rectangular plate and the sealing plate, the gap can be sealed at the same time when the filter plate is disassembled, effectively preventing the leakage of residual dust-containing gas and ensuring the safety of the working environment.

[0018] (4) The dust treatment device used in phosphogypsum processing transmits the supporting force to the output end of the elastic telescopic rod through the linkage plate. Through the stable transmission of supporting force, it can not only ensure that the elastic telescopic rod maintains the precise extension and retraction direction during long-term use, but also suppress the shaking generated during the displacement process, ensuring the smoothness of the overall action. At the same time, the elastic plate generates continuous resistance to the linkage plate, slowing down the displacement speed of the linkage plate. By setting multiple elastic plates, intermittent resistance can be generated in the displacement of the linkage plate, effectively controlling the reset speed of the output end of the elastic telescopic rod and avoiding collisions caused by excessively fast action. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of a half-section of the filter box of the present invention;

[0021] Figure 3 This is a schematic diagram of the top structure of the assembly plate of the present invention;

[0022] Figure 4 This is a schematic diagram showing the positional structure of the filter plate and the sealing plate of the present invention;

[0023] Figure 5 This is a schematic diagram of the filter plate structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the bolt position structure of the present invention;

[0025] Figure 7This is a schematic diagram showing the positional structure of the assembly plate and the cylindrical rod of the present invention;

[0026] Figure 8 This is a schematic diagram of the sealing ring structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the internal structure of the hollow frame of the present invention.

[0028] In the diagram: 1. Spray tower; 2. Filter box; 3. Flange bend; 4. Assembly plate; 5. Filter plate; 6. Connecting plate; 7. Fixing seat; 8. Bolt; 9. Wooden plug; 10. Cylindrical rod; 11. Mounting plate; 12. Sealing ring; 13. Sealing plate; 21. Support seat; 22. Elastic telescopic rod; 23. Movable plate; 24. Rectangular plate; 25. Sealing plate; 26. Buffer ring; 31. Hollow frame; 32. Sliding rod; 33. Linkage plate; 34. Mounting seat; 35. Elastic plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1 - Figure 9 One embodiment of the present invention is: a dust treatment device for phosphogypsum processing, comprising a spray tower 1 and a filter box 2. The spray tower 1 has a gas inlet in its body and a gas outlet at its top. The filter box 2 is located near the spray tower 1. An air inlet pipe is provided on the outer wall of the filter box 2, and a flange bend 3 is provided on the outer wall of the filter box 2. The flange bend 3 is fixedly connected to the gas inlet of the spray tower 1. A dust hopper is provided at the bottom of the filter box 2. A rectangular slot is provided on the outer wall of the filter box 2. The device also includes: an assembly plate 4, which is fixedly installed on the inner wall of the filter box 2; a filter plate 5, which is tightly fitted to the inner wall of the assembly plate 4; and a connecting plate 6. The connecting plate 6 is fixedly installed on the side of the filter plate 5 near the rectangular slot. The connecting plate 6 fits tightly against the inner wall of the rectangular slot. The outer wall of the connecting plate 6 has a positioning groove. The side of the connecting plate 6 away from the filter plate 5 has a handle. The fixing seat 7 is fixedly installed on the outer wall of the filter box 2. The inner wall of the fixing seat 7 has an internal thread groove. The bolt 8 is threaded into the internal thread groove. The wooden plug 9 is fixedly installed on the end of the bolt 8 near the connecting plate 6. The wooden plug 9 fits tightly against the inner wall of the positioning groove. The limit can be released by rotating the bolt 8, and the threaded connection between the bolt 8 and the fixing seat 7 is maintained, eliminating the need to re-align and tighten the bolt 8 during subsequent installation.

[0031] A blind hole is provided on the side of the assembly plate 4 near the connecting plate 6. A cylindrical rod 10 is inserted into the blind hole. The blind hole is used to realize the detachable insertion connection between the cylindrical rod 10 and the assembly plate 4. The flexible disassembly is realized through the insertion of the cylindrical rod 10 into the blind hole.

[0032] A mounting plate 11 is fixedly installed on the side of the cylindrical rod 10 away from the mounting plate 4. A sealing ring 12 is provided on the side of the mounting plate 11 away from the cylindrical rod 10. The mounting plate 11 is in close contact with the outer wall of the mounting plate 4, and the sealing ring 12 is in close contact with the outer wall of the connecting plate 6. The sealing ring 12 is used to seal the gap between the mounting plate 4 and the connecting plate 6. The convenient disassembly of the sealing ring 12 further improves the flexibility of the overall maintenance operation, effectively shortens the maintenance time of the staff, and provides a guarantee for the stability of continuous operation of the equipment.

[0033] A sealing plate 13 is fixedly installed on the outer wall of the assembly plate 4. The sealing plate 13 fits tightly against the inner wall of the filter box 2. The sealing space formed by the sealing plate 13 can ensure the cleanliness of the critical equipment.

[0034] In this embodiment, the dust-laden gas is transported to the filter box 2 through the inlet pipe. The dust-laden gas moves upward from the bottom of the filter box 2 and passes through the filter plate 5 during its movement. The filter plate 5 effectively intercepts the solid particles in the dust-laden gas. The intercepted solid particles settle naturally and are collected in the ash hopper below for subsequent unified treatment. The dust-laden gas that has completed the pretreatment is transported to the spray tower 1 through the flange bend 3 for spray washing. Finally, the purified gas is discharged from the gas outlet at the top of the spray tower 1 and transported to the next processing step.

[0035] When the dust concentration in the purified gas exceeds the standard, the filter plate 5 needs to be maintained or replaced. First, shut down the conveying operation of the dust-laden gas. The staff wears a gas mask and protective gloves and uses tools to rotate the bolt 8, so that the bolt 8 moves away from the connecting plate 6 along the internal thread groove of the fixing seat 7. During the displacement, the bolt 8 drives the wooden plug 9 to move simultaneously. After the bolt 8 reaches the predetermined position, the wooden plug 9 completely disengages from the positioning groove, releasing the limiting fixation on the connecting plate 6. After the limiting is released, pull the handle on the connecting plate 6 to move the connecting plate 6 away from the assembly plate 4. During this process, the connecting plate 6 separates from the sealing ring 12 and drives the filter plate 5 to move outward from the assembly plate 4 until the filter plate 5 is completely pulled out of the rectangular slot, completing the disassembly. The filter plate 5 can be maintained or replaced by rotating the bolt 8 to release the limiting and maintain the threaded connection between the bolt 8 and the fixing seat 7. This eliminates the step of re-aligning and tightening the bolt 8 during subsequent installation, improving the flexibility and efficiency of the filter plate 5 installation and removal.

[0036] When installing filter plate 5, first align filter plate 5 and connecting plate 6 with the rectangular slot, and smoothly push filter plate 5 into the assembly plate 4. During the pushing process, connecting plate 6 first comes into contact with sealing ring 12. At this time, the operator needs to apply continuous pushing force to make connecting plate 6 squeeze sealing ring 12. The squeezed sealing ring 12 undergoes elastic deformation and fits tightly with connecting plate 6 to form an effective seal. After filter plate 5 is completely pushed to the installation position, the operator maintains the pushing force on connecting plate 6 with one hand and uses a tool to tighten bolt 8 with the other hand, so that bolt 8 is fixed. The internal thread groove of seat 7 rotates and moves towards the positioning groove. During this process, bolt 8 drives wooden plug 9 to rotate and move closer to the positioning groove. Wooden plug 9 first contacts the inner wall edge of the positioning groove. As bolt 8 continues to tighten, wooden plug 9 gradually embeds into the positioning groove and fits tightly with the positioning groove, thus limiting and fixing the connecting plate 6 and ending the installation of filter plate 5. The sealing effect is enhanced by squeezing the sealing ring 12, which can prevent the leakage of dust-containing gas. The tight fit between wooden plug 9 and positioning groove enhances the stability of the limiting and ensures that filter plate 5 remains stable under the impact of airflow.

[0037] When the sealing ring 12 needs to be replaced, after the filter plate 5 is disassembled, the operator pulls out the mounting plate 11 directly away from the mounting plate 4. During this process, the mounting plate 11 simultaneously moves the sealing ring 12, and the mounting plate 11 also pulls the cylindrical rod 10 out of the blind hole, thus quickly completing the disassembly of the sealing ring 12. The convenient disassembly of the sealing ring 12 further improves the flexibility of the overall maintenance operation, effectively shortens the maintenance time of the operator, and provides a guarantee for the stability of continuous operation of the equipment.

[0038] Please see Figure 1 - Figure 9 In another embodiment of the present invention, based on the above embodiments, the assembly plate 4 is provided with a leak-proof sealing device for improving the sealing effect, and the assembly plate 4 is also provided with a leak-proof sealing device for improving the safety of disassembly; the leak-proof sealing device includes a support base 21, an elastic telescopic rod 22, a movable plate 23, a rectangular plate 24 and a sealing plate 25. The support base 21 is fixedly installed on the surface of the assembly plate 4, the elastic telescopic rod 22 is fixedly installed on the inner wall of the support base 21, the movable plate 23 is fixedly installed on the output end of the elastic telescopic rod 22, the rectangular plate 24 is fixedly installed on the side of the movable plate 23 near the filter plate 5, and the sealing plate 25 is fixedly installed on the side of the rectangular plate 24 near the filter plate 5. The sealing plate 25 is in contact with the outer wall of the filter plate 5. The tension of the elastic telescopic rod 22 when it is reset is converted into an auxiliary pushing force on the filter plate 5, which can effectively reduce the resistance caused by dust adhering to the surface of the filter plate 5 when the operator pulls it out, and improve the disassembly efficiency.

[0039] A buffer ring 26 is fixedly installed on the outer wall of the rectangular plate 24. The size of the sealing plate 25 is adapted to the inner wall contour of the rectangular slot. Through the coordinated cooperation of the rectangular plate 24 and the sealing plate 25, the gap can be sealed simultaneously when the filter plate 5 is disassembled, effectively preventing the leakage of residual dust-containing gas and ensuring the safety of the working environment.

[0040] The leak-proof sealing device includes a hollow frame 31, a sliding rod 32, and a linkage plate 33. The hollow frame 31 is fixedly installed on the surface of the assembly plate 4. A guide groove is provided on the surface of the hollow frame 31. The sliding rod 32 is slidably installed in the guide groove. The linkage plate 33 is fixedly installed on the circumferential surface of the sliding rod 32. A circular hole is provided on the surface of the linkage plate 33. The linkage plate 33 is fixedly connected to the circumferential surface of the output end of the elastic telescopic rod 22 through the circular hole. Through stable support force transmission, it can not only ensure that the elastic telescopic rod 22 maintains a precise telescopic direction during long-term use, but also suppress the shaking generated during displacement.

[0041] Multiple mounting seats 34 are fixedly installed on the inner wall of the hollow frame 31. Elastic plates 35 are fixedly installed on the inner wall of the multiple mounting seats 34. By setting multiple elastic plates 35, intermittent resistance can be generated in the displacement of the linkage plate 33, effectively controlling the reset speed of the output end of the elastic telescopic rod 22 and avoiding collisions caused by excessively fast movements.

[0042] In this embodiment, during the disassembly stage of the filter plate 5, when the limiting fixation of the connecting plate 6 is released, the elastic telescopic rod 22, which is in a stretched state, will immediately reset. Its output end pulls the movable plate 23 to move closer to the rectangular slot. The movable plate 23 simultaneously drives the rectangular plate 24 to move. While the rectangular plate 24 drives the buffer ring 26 to move, it further drives the sealing plate 25 to move synchronously. At this time, the sealing plate 25, which is in contact with the filter plate 5, will apply a controllable auxiliary thrust to the filter plate 5 during the displacement process, assisting the staff to quickly disassemble the filter plate 5. The tension of the elastic telescopic rod 22 when it resets is converted into an auxiliary thrust on the filter plate 5, which can effectively reduce the resistance caused by the dust adhering to the surface of the filter plate 5 when the staff pulls it out, and improve the disassembly efficiency.

[0043] During the process of assisting in the disassembly of the filter plate 5, the buffer ring 26, which moves along with the rectangular plate 24, will first come into contact with the outer wall of the assembly plate 4. The impact force generated by the contact is effectively absorbed by the buffer ring 26, thereby avoiding direct collision. Subsequently, the output end of the elastic telescopic rod 22 is reset, and the disassembled filter plate 5 is separated from the sealing plate 25. At this time, the sealing plate 25, which stops moving, fits tightly with the rectangular slot. At the same time, the rectangular plate 24 simultaneously seals the internal channel of the assembly plate 4, preventing the gas at the bottom of the filter box 2 from moving upward through the assembly plate 4. Through the coordinated cooperation of the rectangular plate 24 and the sealing plate 25, the gap can be sealed simultaneously when the filter plate 5 is disassembled, effectively preventing the leakage of residual dust-laden gas and ensuring the safety of the working environment.

[0044] When the filter plate 5 is pushed for installation, after the filter plate 5 comes into contact with the sealing plate 25, it will apply a continuous pushing force to it, causing the sealing plate 25 to move away from the rectangular slot. The sealing plate 25 then drives the movable plate 23 to move synchronously through the rectangular plate 24, so that the original blockage is released in sequence. At the same time, the movable plate 23 pulls the output end of the elastic telescopic rod 22, forcing the elastic telescopic rod 22 to be stretched and store elastic potential energy for the next disassembly operation. Through the pushing force of the filter plate 5 on the sealing plate 25 during the installation process, the blockage of the sealing plate 25 is released in linkage, realizing the automatic linkage of installation operation and reset, and improving the continuity of operation.

[0045] When the output end of the elastic telescopic rod 22 is reset, the linkage plate 33 fixedly connected to its output end will move synchronously. The linkage plate 33 drives the slide rod 32 to slide precisely along the guide groove. During this process, the support force provided by the slide rod 32 is transmitted to the output end of the elastic telescopic rod 22 through the linkage plate 33, which effectively improves the stability of its output end displacement. Through the stable support force transmission, it can not only ensure that the elastic telescopic rod 22 maintains the precise extension and retraction direction in long-term use, but also suppress the shaking generated during the displacement process and ensure the smoothness of the overall action.

[0046] When the linkage plate 33 moves closer to the elastic plate 35, the linkage plate 33 first contacts and adheres to the elastic plate 35, and then a pushing force is applied, forcing the elastic plate 35 to bend in the direction of the linkage plate 33's displacement. The bent elastic plate 35 will generate continuous resistance to the linkage plate 33 due to its own elastic restoring force. This resistance can slow down the displacement speed of the linkage plate 33 until the linkage plate 33 passes over the elastic plate 35 and separates from it. By setting multiple elastic plates 35, intermittent resistance can be generated in the displacement of the linkage plate 33, effectively controlling the reset speed of the output end of the elastic telescopic rod 22 and avoiding collisions caused by excessively fast movements.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust treatment device for phosphogypsum processing, comprising a spray tower (1) and a filter box (2), characterized in that, The spray tower (1) has a gas inlet on its tower body and a gas outlet on its top. The filter box (2) is located near the spray tower (1). The filter box (2) has an air inlet pipe on its outer wall and a flange bend (3) on its outer wall. The flange bend (3) is fixedly connected to the gas inlet of the spray tower (1). The filter box (2) has an ash hopper at its bottom and a rectangular slot on its outer wall. The filter box (2) also includes: Assembly plate (4), said assembly plate (4) is fixedly installed on the inner wall of filter box (2); The filter plate (5) is tightly fitted to the inner wall of the assembly plate (4); Connecting plate (6), the connecting plate (6) is fixedly installed on the side of the filter plate (5) near the rectangular slot, the connecting plate (6) is tightly fitted with the inner wall of the rectangular slot, the outer wall of the connecting plate (6) is provided with a positioning groove, and the side of the connecting plate (6) away from the filter plate (5) is provided with a handle; The fixing seat (7) is fixedly installed on the outer wall of the filter box (2), and the inner wall of the fixing seat (7) is provided with an internal thread groove; Bolt (8), said bolt (8) is threaded in an internal thread groove; The wooden plug (9) is fixedly installed at one end of the bolt (8) near the connecting plate (6), and the wooden plug (9) is tightly fitted to the inner wall of the positioning groove; A sealing plate (13) is fixedly installed on the outer wall of the assembly plate (4), and the sealing plate (13) is tightly fitted to the inner wall of the filter box (2); The assembly plate (4) is provided with a leak-proof sealing device to improve the sealing effect, and the assembly plate (4) is also provided with a leak-proof sealing device to improve the safety of disassembly. The leak-proof sealing device includes a support base (21), an elastic telescopic rod (22), a movable plate (23), a rectangular plate (24), and a sealing plate (25). The support base (21) is fixedly installed on the surface of the assembly plate (4). The elastic telescopic rod (22) is fixedly installed on the inner wall of the support base (21). The movable plate (23) is fixedly installed on the output end of the elastic telescopic rod (22). The rectangular plate (24) is fixedly installed on the side of the movable plate (23) near the filter plate (5). The sealing plate (25) is fixedly installed on the side of the rectangular plate (24) near the filter plate (5). The sealing plate (25) is in contact with the outer wall of the filter plate (5).

2. The dust treatment device for phosphogypsum processing according to claim 1, characterized in that: The assembly plate (4) has a blind hole on the side near the connecting plate (6), and a cylindrical rod (10) is inserted into the blind hole. The blind hole is used to realize the detachable insertion connection between the cylindrical rod (10) and the assembly plate (4).

3. A dust treatment device for phosphogypsum processing according to claim 2, characterized in that: A mounting plate (11) is fixedly installed on the side of the cylindrical rod (10) away from the mounting plate (4). A sealing ring (12) is provided on the side of the mounting plate (11) away from the cylindrical rod (10). The mounting plate (11) is in close contact with the outer wall of the mounting plate (4). The sealing ring (12) is in close contact with the outer wall of the connecting plate (6). The sealing ring (12) is used to seal the gap between the mounting plate (4) and the connecting plate (6).

4. A dust treatment device for phosphogypsum processing according to claim 3, characterized in that: A buffer ring (26) is fixedly installed on the outer wall of the rectangular plate (24), and the size of the sealing plate (25) is adapted to the inner wall contour of the rectangular slot.

5. A dust treatment device for phosphogypsum processing according to claim 4, characterized in that: The leak-proof sealing device includes a hollow frame (31), a sliding rod (32), and a linkage plate (33). The hollow frame (31) is fixedly installed on the surface of the assembly plate (4). A guide groove is provided on the surface of the hollow frame (31). The sliding rod (32) is slidably installed in the guide groove. The linkage plate (33) is fixedly installed on the circumferential surface of the sliding rod (32). A circular hole is provided on the surface of the linkage plate (33). The linkage plate (33) is fixedly connected to the circumferential surface of the output end of the elastic telescopic rod (22) through the circular hole.

6. A dust treatment device for phosphogypsum processing according to claim 5, characterized in that: The hollow frame (31) has multiple mounting seats (34) fixedly installed on its inner wall, and the inner walls of the multiple mounting seats (34) have elastic plates (35) fixedly installed on them.

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