Spent phosphoric acid recovery treatment device

Abstract

The utility model relates to the field of waste phosphoric acid recovery, especially waste phosphoric acid recovery treatment device, including having treatment cabinet, still including scraper, the right -hand fixed connection of treatment cabinet has motor no.

Description

Technical Field

[0001] This utility model relates to the field of waste phosphoric acid recycling, and in particular to a waste phosphoric acid recycling and treatment device. Background Technology

[0002] Waste phosphoric acid recycling refers to the process of collecting, purifying, and reusing phosphoric acid-containing waste liquid generated in industrial production. Impurities such as metal ions and organic matter are removed through technologies such as neutralization, filtration, concentration, distillation, or ion exchange, and the phosphoric acid is purified to industrial-grade phosphoric acid that can be reused in fertilizer production, metal surface treatment, detergent manufacturing, and other fields. This not only reduces environmental pollution but also saves resource costs and achieves a circular economy.

[0003] In the waste phosphoric acid recovery filtration process, the filter element or filter membrane is often quickly clogged due to suspended particles, colloidal substances or crystal deposits in the waste liquid. This not only reduces filtration efficiency and increases the maintenance cost of frequent cleaning or replacement of filter media, but also may affect the stability of the system due to increased pressure difference, especially in waste acids with high solid content or high viscosity.

[0004] Therefore, in the above-mentioned waste phosphoric acid recovery filtration process, the filter element or filter membrane is often quickly clogged due to suspended particles, colloidal substances or crystal deposits in the waste liquid. This not only reduces filtration efficiency and increases the maintenance cost of frequent cleaning or replacement of filter media, but also may affect the stability of the system due to increased pressure difference, especially in waste acid with high solid content or high viscosity. Therefore, a waste phosphoric acid recovery and treatment device can be designed. Utility Model Content

[0005] To overcome the problem that the filter element or filter membrane is often quickly clogged due to suspended particles, colloidal substances or crystal deposits in the waste liquid during the waste phosphoric acid recycling filtration process, which not only reduces filtration efficiency but also increases the maintenance cost of frequent cleaning or replacement of filter media.

[0006] The technical solution of this utility model is as follows: a waste phosphoric acid recycling and treatment device, including a treatment cabinet; it also includes a scraper, a motor is fixedly connected to the right end of the treatment cabinet, a threaded rod is fixedly connected to the output end of the motor, the motor is used to drive the threaded rod to rotate, the threaded rod is rotatably connected to the treatment cabinet, a limit rod is fixedly connected inside the treatment cabinet, a moving block is threadedly connected to the outer surface of the threaded rod, the same moving block is slidably connected to the outer surface of the limit rod, three connecting rods are fixedly connected to the bottom of the moving block, a scraper is fixedly connected to the bottom of the connecting rod, a filter plate is fixedly connected inside the treatment cabinet, two filter plates are fixedly connected to the bottom of the filter plate, the scraper is slidably connected to the filter plate, and a filter plate is fixedly connected inside the treatment cabinet.

[0007] Preferably, in the waste phosphoric acid recovery process, the waste liquid is filtered sequentially through filter plate one, filter plate two, and filter plate three before finally flowing out of the treatment cabinet. To address the filter plate clogging problem caused by suspended particles, colloids, or crystal deposits, the system uses motor one to drive the threaded rod to rotate, which in turn drives the moving block and connecting rod to make the scraper slide on the surface of filter plate one, scraping the precipitate to filter plate two. This avoids the accumulation of impurities affecting the filtration efficiency, effectively alleviates the clogging defects of traditional filtration methods, reduces the cleaning frequency and maintenance costs, and improves the stability and processing efficiency of waste phosphoric acid recovery.

[0008] Preferably, the left and right sides of the treatment cabinet are movably connected to movable doors, and the upper end of the filter plate is movably connected to a cleaning plate.

[0009] Preferably, a fixing rod is fixedly connected between the cleaning plate and the movable door, and baffles are fixedly connected to both the left and right sides of the processing cabinet.

[0010] Preferably, a fixing plate is fixedly connected to the lower part of the interior of the processing cabinet, and a valve is fixedly connected to the bottom of the fixing plate.

[0011] Preferably, a feed inlet is fixedly connected to the left end of the processing cabinet, and an air outlet is fixedly connected to the top end of the processing cabinet.

[0012] Preferably, a purification box is fixedly connected to the left end of the air outlet pipe, and the purification box has two activated carbon layers inside.

[0013] Preferably, a second motor is fixedly connected to the top of the processing cabinet, and a stirring rod is fixedly connected to the output end of the second motor. The second motor is used to drive the stirring rod to rotate.

[0014] The beneficial effects of this utility model are:

[0015] In the waste phosphoric acid recovery process, the waste liquid is filtered sequentially through filter plate one, filter plate two, and filter plate three before finally flowing out of the treatment cabinet. To address the filter plate clogging problem caused by suspended particles, colloids, or crystal deposits, the system uses motor one to drive the threaded rod to rotate, which in turn drives the moving block and connecting rod to make the scraper slide on the surface of filter plate one, scraping the precipitate to filter plate two. This avoids the accumulation of impurities affecting the filtration efficiency, effectively alleviates the clogging defects of traditional filtration methods, reduces the cleaning frequency and maintenance costs, and improves the stability and processing efficiency of waste phosphoric acid recovery. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional front cross-sectional view of the present invention.

[0018] Figure 3The diagram shown is a three-dimensional side sectional view of the present invention.

[0019] Figure 4 The diagram shown is a three-dimensional top cross-sectional view of the present invention.

[0020] Figure 5 The diagram shown is a three-dimensional front cross-sectional view of the purification box of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Processing cabinet; 2. Motor 1; 3. Threaded rod; 4. Moving block; 5. Connecting rod; 6. Scraper; 7. Filter plate 1; 8. Filter plate 2; 9. Limiting rod; 10. Cleaning plate; 11. Fixing rod; 12. Movable door; 13. Baffle; 14. Fixing plate; 15. Valve; 16. Motor 2; 17. Stirring rod; 18. Feed inlet; 19. Air outlet pipe; 20. Purification box; 21. Activated carbon layer; 22. Filter plate 3. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a waste phosphoric acid recycling and treatment device includes a treatment cabinet 1; it also includes a scraper 6. A motor 2 is fixedly connected to the right end of the treatment cabinet 1, and a threaded rod 3 is fixedly connected to the output end of the motor 2. The motor 2 drives the threaded rod 3 to rotate. The threaded rod 3 is rotatably connected to the treatment cabinet 1. A limit rod 9 is fixedly connected inside the treatment cabinet 1. A movable block 4 is threadedly connected to the outer surface of the threaded rod 3. The same movable block 4 is slidably connected to the outer surface of the limit rod 9. Three connecting rods 5 are fixedly connected to the bottom of the movable block 4. A scraper 6 is fixedly connected to the bottom of the connecting rods 5. A filter plate 7 is fixedly connected inside the treatment cabinet 1, and two filter plates 2 are fixedly connected to the bottom of the filter plate 7. 8. The scraper 6 is slidably connected to the filter plate 7. The filter plate 22 is fixedly connected inside the treatment cabinet 1. During the waste phosphoric acid recovery process, the waste liquid passes through the filter plate 7, the filter plate 8, and the filter plate 22 in sequence for filtration, and finally flows out from the treatment cabinet 1. In order to deal with the filter plate clogging problem caused by suspended particles, colloids, or crystal deposits, the system uses the motor 2 to drive the threaded rod 3 to rotate, which drives the moving block 4 and the connecting rod 5 to make the scraper 6 slide on the surface of the filter plate 7, scraping the precipitate to the filter plate 8. This avoids the accumulation of impurities affecting the filtration efficiency, effectively alleviates the defects of easy clogging in traditional filtration methods, reduces the cleaning frequency and maintenance costs, and improves the stability and processing efficiency of waste phosphoric acid recovery.

[0024] Please see Figures 2-4In this embodiment, movable doors 12 are movably connected to both the left and right sides of the treatment cabinet 1, and a cleaning plate 10 is movably connected to the upper end of the filter plate 8. When too much sediment accumulates on the filter plate 8, the movable doors 12 can be opened for cleaning. A fixing rod 11 is fixedly connected between the cleaning plate 10 and the movable doors 12. Baffles 13 are fixedly connected to both the left and right sides of the treatment cabinet 1. When the movable doors 12 are opened, the movable doors 12 drive the cleaning plate 10 to scrape the filter plate 8 through the fixing rod 11, removing the sediment from the treatment cabinet 1. At the same time, the baffles 13 prevent the sediment from falling to the ground during cleaning. A fixing plate 14 is fixedly connected to the lower part of the interior of the treatment cabinet 1, and a valve 15 is fixedly connected to the bottom of the fixing plate 14. When the sedimentation is finished, the valve 15 is opened, and the filtered waste liquid flows out of the treatment cabinet 1 and enters the next process.

[0025] Please see Figures 2-5 In this embodiment, a feed inlet 18 is fixedly connected to the left end of the treatment cabinet 1, and an exhaust pipe 19 is fixedly connected to the upper end of the treatment cabinet 1. Phosphoric acid waste liquid and treatment agents enter the interior of the treatment cabinet 1 through the feed inlet 18. A purification box 20 is fixedly connected to the left end of the exhaust pipe 19. Two activated carbon layers 21 are provided inside the purification box 20. The gas generated during the reaction enters the purification box 20 through the exhaust pipe 19. The gas is initially purified by the activated carbon layers 21 to prevent it from affecting employees. A second motor 16 is fixedly connected to the top of the treatment cabinet 1. A stirring rod 17 is fixedly connected to the output end of the second motor 16. The second motor 16 is used to drive the stirring rod 17 to rotate. Then, the second motor 16 drives the stirring rod 17 to rotate, so that the phosphoric acid waste liquid and treatment agents are fully mixed to prevent incomplete reaction due to insufficient mixing.

[0026] During operation, phosphoric acid waste liquid and treatment agents enter the treatment cabinet 1 through inlet 18. Then, motor 16 is started to drive the stirring rod 17 to rotate. The rotation of the stirring rod 17 ensures that the phosphoric acid waste liquid and treatment agents are fully mixed, causing precipitates to form. This process also prevents incomplete reactions due to insufficient mixing. The gas generated during the reaction enters the purification box 20 through the exhaust pipe 19. The gas is initially purified by the activated carbon layer 21 to prevent any impact on employees. When the sedimentation is complete, valve 15 is opened, and the waste liquid is filtered by filter plates 1, 8, and 22 before exiting the treatment cabinet. 1. During filtration, motor 2 drives threaded rod 3 to rotate. When threaded rod 3 rotates, it drives moving block 4 to move, causing connecting rod 5 and scraper 6 to slide on filter plate 7, scraping the sediment onto filter plate 8. This prevents excessive accumulation of impurities on filter plate 7 from affecting the filtration speed. When too much sediment accumulates on filter plate 8, the movable door 12 can be opened for cleaning. When the movable door 12 is opened, it drives cleaning plate 10 to scrape the sediment off filter plate 8 via fixed rod 11. At the same time, baffle 13 prevents sediment from falling to the ground during cleaning.

[0027] Through the above steps, the waste liquid is filtered by filter plate 1, filter plate 2 8, and filter plate 3 22, and then flows out from the treatment cabinet 1. During filtration, motor 1 2 drives the threaded rod 3 to rotate. When the threaded rod 3 rotates, it drives the moving block 4 to move, which in turn drives the connecting rod 5 and the scraper 6 to slide on filter plate 1 7, scraping the precipitate onto filter plate 2 8. This prevents the accumulation of too many impurities on filter plate 1 7 from affecting the filtration speed. This solves the problem that the filter element or filter membrane is often quickly blocked due to suspended particles, colloidal substances, or crystal deposits in the waste liquid during the waste phosphoric acid recovery filtration process, which not only reduces filtration efficiency but also increases the maintenance cost of frequent cleaning or replacement of filter media.

Claims

1. A waste phosphoric acid recycling and treatment device, comprising a treatment cabinet (1); characterized in that: It also includes a scraper (6), a motor (2) fixedly connected to the right end of the processing cabinet (1), a threaded rod (3) fixedly connected to the output end of the motor (2), the motor (2) is used to drive the threaded rod (3) to rotate, the threaded rod (3) is rotatably connected to the processing cabinet (1), a limit rod (9) is fixedly connected inside the processing cabinet (1), a moving block (4) is threadedly connected to the outer surface of the threaded rod (3), the same moving block (4) is slidably connected to the outer surface of the limit rod (9), three connecting rods (5) are fixedly connected to the bottom of the moving block (4), a scraper (6) is fixedly connected to the bottom of the connecting rod (5), a filter plate (7) is fixedly connected inside the processing cabinet (1), two filter plates (8) are fixedly connected to the bottom of the filter plate (7), the scraper (6) is slidably connected to the filter plate (7), and a filter plate (22) is fixedly connected inside the processing cabinet (1).

2. The waste phosphoric acid recovery and treatment device according to claim 1, characterized in that: The left and right sides of the processing cabinet (1) are movably connected to movable doors (12), and the upper end of the filter plate (8) is movably connected to a cleaning plate (10).

3. The waste phosphoric acid recovery and treatment device according to claim 2, characterized in that: A fixing rod (11) is fixedly connected between the cleaning plate (10) and the movable door (12), and baffles (13) are fixedly connected to both the left and right sides of the processing cabinet (1).

4. The waste phosphoric acid recovery and treatment device according to claim 1, characterized in that: A fixing plate (14) is fixedly connected to the lower part of the interior of the processing cabinet (1), and a valve (15) is fixedly connected to the bottom of the fixing plate (14).

5. The waste phosphoric acid recovery and treatment device according to claim 1, characterized in that: The left end of the processing cabinet (1) is fixedly connected to the inlet (18), and the upper end of the processing cabinet (1) is fixedly connected to the outlet pipe (19).

6. The waste phosphoric acid recovery and treatment device according to claim 5, characterized in that: The left end of the air outlet pipe (19) is fixedly connected to a purification box (20), and the inside of the purification box (20) is provided with two activated carbon layers (21).

7. The waste phosphoric acid recovery and treatment device according to claim 1, characterized in that: The top of the processing cabinet (1) is fixedly connected to a motor (16), and the output end of the motor (16) is fixedly connected to a stirring rod (17). The motor (16) is used to drive the stirring rod (17) to rotate.

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