Emission reduction method and equipment for APT (ammonium paratungstate) high-salinity wastewater

Abstract

The invention discloses an emission reduction method and equipment for APT (ammonium paratungstate) high-salinity wastewater, and relates to the field of high-salinity wastewater treatment. The partition plate is fixed in the filter tank, and the interior of the filter tank is divided into a first chamber and a second chamber by the partition plate; a filtering and collecting box for collecting suspended solids is arranged in the first cavity in a lifting mode, an opening is formed in the side, facing the partition plate, of the filtering and collecting box, a cleaning mechanism for scraping the suspended solids in the filtering and collecting box is arranged above the filtering and collecting box, and an extrusion mechanism is arranged in the second cavity in a lifting mode. A suction mechanism is connected between the first chamber and the second chamber, and lifting of the filtering and collecting box is controlled through the winding mechanism, so that suspended solids and impurities in wastewater can be effectively intercepted and collected. Through the design, the filtering process is more flexible, the ascending speed and height of the filtering and collecting box can be adjusted according to the pollution degree of wastewater, and the filtering efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of high-salt wastewater treatment, and in particular to a method and equipment for reducing the discharge of APT high-salt wastewater. Background Art

[0002] High-salinity wastewater primarily originates from industrial processes such as the chemical, pharmaceutical, printing and dyeing, and papermaking industries. This wastewater contains significant amounts of salt, organic matter, heavy metals, and other pollutants, with salinity levels often exceeding 10g / L or even higher. The discharge of high-salinity wastewater poses significant environmental risks, including soil salinization, groundwater contamination, and ecosystem damage.

[0003] Existing emission reduction equipment will pre-treat wastewater to remove suspended matter and impurities in the wastewater. However, when removing suspended matter, there is still a large amount of waste liquid inside the suspended matter. The existing treatment procedure is to directly discard the suspended matter, but this part of the waste liquid still has usable value, and directly discharging it is likely to cause waste.

[0004] Therefore, it is necessary to propose a method and equipment for reducing the discharge of APT high-salt wastewater to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and equipment for reducing the discharge of APT high-salt wastewater, so as to solve the problem that the existing discharge reduction equipment will pre-treat the wastewater to remove suspended matter and impurities in the wastewater, but when the suspended matter is removed, there is still a large amount of waste liquid inside the suspended matter. The existing treatment procedure is to directly discard the suspended matter, but this part of the waste liquid still has usable value, and directly discharging it is likely to cause waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an APT high-salt wastewater reduction device, comprising:

[0007] filter pool;

[0008] A partition is fixed in the filter tank, and the partition divides the filter tank into a first chamber and a second chamber;

[0009] A filter collection box for collecting suspended matter is provided in the first chamber, and an opening is provided on a side of the filter collection box facing the partition;

[0010] A cleaning mechanism for scraping suspended matter inside the filter collection box is provided above the filter collection box;

[0011] A squeezing mechanism is provided in the second chamber for lifting and lowering, and a suction mechanism is connected between the first chamber and the second chamber.

[0012] Preferably, a filter mesh is provided on the filter collection box, two connecting frames are fixed on both sides of the filter pool, a winding mechanism is fixed on the top of the four connecting frames, and a connecting rope is provided between the winding mechanism and the filter collection box.

[0013] Preferably, the winding mechanism comprises a fixed box, a winding shaft is rotatably connected in the fixed box, and the connecting rope is wound around the winding shaft;

[0014] A motor is fixed in the fixing box, and a driving shaft of the motor is connected to the winding shaft.

[0015] Preferably, a top plate is fixed between the four connecting frames, a first electric push rod is fixed to the bottom end of the top plate, and a limit plate is fixed to the bottom end of the first electric push rod;

[0016] An electric slide rail is fixed to the bottom end of the limit plate along the length direction, a slider is slidably fitted on the electric slide rail, and the cleaning mechanism includes a push plate fixed to the bottom end of the slider.

[0017] Preferably, the length of the push plate corresponds to the inner width of the filter collection box, and the bottom end of the push plate is configured as a pointed end;

[0018] The outer side of the limiting plate is fitted with the inner side of the filter collection box.

[0019] Preferably, a U-shaped frame is provided outside the second chamber, and the U-shaped frame is fixed to the outside of the filter tank;

[0020] The extrusion mechanism includes a second electric push rod and a pressure plate, wherein the second electric push rod is fixed to the top end of the U-shaped frame, and the pressure plate is fixed to the bottom end of the second electric push rod, and the pressure plate extends into the second chamber;

[0021] A filter screen is fixed in the middle of the second chamber and is arranged below the pressure plate.

[0022] Preferably, the suction mechanism includes a pump body, the pump body is fixed to the outside of the filter tank, and the first chamber, the second chamber and the pump body are connected by pipelines.

[0023] Preferably, a support frame is fixedly connected to the bottom end of the filter tank, and a drain port is connected to the bottom end of the first chamber;

[0024] The bottom end of the second chamber is connected to a waste outlet.

[0025] Preferably, a camera is provided inside the filter tank.

[0026] The present invention also discloses a method for reducing the discharge of APT high-salt wastewater, comprising the following steps:

[0027] S1. Pour wastewater into the filter tank and add precipitant for mixed precipitation;

[0028] S2, collecting suspended matter and impurities in the filter pool by ascending the filter collection box. After ascending, the cleaning mechanism moves along the length and scrapes the collected matter inside the filter collection box into the second chamber;

[0029] S3. The residual liquid in the collection is squeezed out by the squeezing mechanism, and the residual liquid is sucked back into the first chamber again.

[0030] Technical effects and advantages of the present invention:

[0031] 1. The reeling mechanism controls the rise and fall of the filter collection box, effectively intercepting and collecting suspended solids and impurities in the wastewater. This design makes the filtration process more flexible, and the rise speed and height of the filter collection box can be adjusted according to the degree of wastewater contamination, thereby improving filtration efficiency.

[0032] 2. By setting up a cleaning mechanism, the suspended matter collected inside the filter collection box can be automatically scraped off. This automatic cleaning method not only improves the cleaning efficiency, but also reduces manual intervention and reduces labor intensity.

[0033] 3. The outer side of the limit plate fits with the inner side of the filter collection box, which plays the role of limiting and guiding, ensuring that the cleaning mechanism can operate stably during the cleaning process and avoiding incomplete cleaning due to the shaking of the cleaning mechanism.

[0034] 4. The extrusion mechanism squeezes the collected material through the second electric push rod and the pressure plate, effectively removing any residual liquid from the collected material. This design not only improves the dehydration of solid waste but also reduces liquid waste. The suction mechanism draws the residual liquid back into the first chamber for further processing, achieving liquid recycling, improving water resource utilization, and reducing wastewater discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a one-view structural diagram of the APT high-salt wastewater reduction equipment of the present invention.

[0036] Figure 2 This is a structural schematic diagram from another perspective of the APT high-salt wastewater reduction equipment of the present invention.

[0037] Figure 3 It is a structural schematic diagram of the pressing plate and the second electric push rod of the present invention.

[0038] Figure 4 It is a structural schematic diagram of the drain outlet of the present invention.

[0039] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of point A in the middle.

[0040] Figure 6 Schematic diagram of the structure of the first chamber and the second chamber of the present invention.

[0041] In the figure: 1. Support frame; 2. Filter tank; 3. Filter collection box; 4. Connecting frame; 5. Connecting rope; 6. Partition; 7. Winding mechanism; 8. Top plate; 9. First electric push rod; 10. Slider; 11. Push plate; 12. Electric slide rail; 13. Pressing plate; 14. Second electric push rod; 15. Waste outlet; 16. Drain outlet; 17. Pipeline; 18. First chamber; 19. Second chamber; 20. Pump body; 21. Limiting plate; 22. U-shaped frame. DETAILED DESCRIPTION

[0042] The present invention provides Figures 1 to 6 The APT high-salt wastewater reduction equipment shown includes a filter tank 2 for accommodating wastewater and performing preliminary filtration treatment. The bottom end of the filter tank 2 is fixedly connected to a support frame 1 for stabilizing the entire equipment.

[0043] Two connecting frames 4 are fixed on both sides of the filter pool 2. The top of the four connecting frames 4 is fixed with a winding mechanism 7. The winding mechanism 7 is connected to the filter collection box 3 through a connecting rope 5 for controlling the lifting of the filter collection box 3.

[0044] Specifically, the winding mechanism 7 includes a fixed box, a winding shaft is rotatably connected in the fixed box, the connecting rope 5 is wound around the winding shaft, a motor is fixed in the fixed box, and the driving shaft of the motor is connected to the winding shaft.

[0045] The motor can use a servo motor. By starting the motor, the winding shaft can be driven to rotate forward and reverse, thereby winding and releasing the connecting rope 5, and driving the filter collection box 3 to rise and fall. The four winding mechanisms 7 can increase the stability of the lifting of the filter collection box 3.

[0046] Partition 6 is fixed within filter tank 2 and divides filter tank 2 into a first chamber 18 and a second chamber 19, thereby partitioning the treatment process into different stages and improving treatment efficiency and targeting. The height of partition 6 matches the height of filter tank 2, ensuring that the two chambers are effectively separated.

[0047] A filter collection box 3 for collecting suspended matter is installed in the first chamber 18 and is lifted up. The filter collection box 3 has an opening on one side facing the partition 6 to facilitate scraping and transfer of the collected matter, which finally enters the second chamber 19 .

[0048] A cleaning mechanism is provided above the filter collection box 3 to scrape away suspended matter within the filter collection box 3. The filter collection box 3 is provided with a filter mesh, the aperture of which can be designed based on the particle size of suspended matter in the wastewater to achieve optimal filtration. In the initial state, the filter collection box 3 is located at the bottom of the first chamber 18. As the filter collection box 3 moves from bottom to top, it collects suspended matter in the wastewater, while excess wastewater flows out through the mesh.

[0049] An extrusion mechanism is set for lifting in the second chamber 19, a suction mechanism is connected between the first chamber 18 and the second chamber 19, a top plate 8 is fixed between the four connecting frames 4, a first electric push rod 9 is fixed to the bottom end of the top plate 8, a limit plate 21 is fixed to the bottom end of the first electric push rod 9, an electric slide rail 12 is fixed to the bottom end of the limit plate 21 along the length direction, a slider 10 is slidably fitted on the electric slide rail 12, and the cleaning mechanism includes a push plate 11, which is fixed to the bottom end of the slider 10.

[0050] The length of the push plate 11 corresponds to the inner width of the filter-collecting box 3 , and the bottom end of the push plate 11 is set to a pointed end, and the outer side of the limiting plate 21 is in contact with the inner side of the filter-collecting box 3 .

[0051] In the actual operation of the present invention, the suspended matter and impurities in the wastewater are intercepted by the filter mesh of the filter collection box 3 and collected inside it. When the filter collection box 3 rises to a certain height, the operation of the winding mechanism 7 is stopped. Then, the first electric push rod 9 is started to extend it, driving the limit plate 21 to move downward until the outer side of the limit plate 21 is tightly fitted with the inner side of the filter collection box 3. Then the electric slide rail 12 is started to slide the slider 10 along the length direction of the electric slide rail 12, thereby driving the push plate 11 to move. The tip and bottom of the push plate 11 scrape off the collected material inside the filter collection box 3 during the movement, reducing the difficulty of subsequent cleaning by personnel.

[0052] A U-shaped frame 22 is provided outside the second chamber 19 and is fixed to the outside of the filter tank 2;

[0053] The extrusion mechanism includes a second electric push rod 14 and a pressure plate 13. The second electric push rod 14 is fixed to the top end of the U-shaped frame 22, and the pressure plate 13 is fixed to the bottom end of the second electric push rod 14. The pressure plate 13 extends into the second chamber 19. A filter is fixed in the middle of the second chamber 19. The filter is arranged below the pressure plate 13 and is used to filter the residual liquid after extrusion.

[0054] The suction mechanism includes a pump body 20, which is fixed to the outside of the filter tank 2. The first chamber 18, the second chamber 19 and the pump body 20 are connected by a pipe 17. The function of the suction mechanism is to suck the residual liquid after squeezing in the second chamber 19 back into the first chamber 18 for further processing.

[0055] When suspended matter enters the second chamber 19, the second electric push rod 14 is activated, extending it and moving the pressure plate 13 downward, squeezing the collected matter in the second chamber 19. The pressure of the pressure plate 13 can be adjusted according to the nature of the collected matter and the desired degree of dehydration. During the squeezing process, residual liquid in the collected matter flows out through the filter below the pressure plate 13 and into the bottom of the second chamber 19. After squeezing is completed, the second electric push rod 14 retracts, and the pressure plate 13 rises and resets. The pump 20 is then activated, sucking the residual liquid in the second chamber 19 back into the first chamber 18 through the pipeline 17 for further processing and sedimentation. This cycle continues until the suspended matter and impurities in the wastewater are fully removed, achieving the goal of emission reduction.

[0056] The bottom end of the first chamber 18 is connected to a drain port 16 for discharging the waste liquid after removing the suspended matter.

[0057] The bottom end of the second chamber 19 is connected to a waste outlet 15 for discharging suspended matter.

[0058] A camera is provided inside the filter tank 2 for real-time monitoring of the situation during the wastewater treatment process, so that operators can find and solve problems in a timely manner and ensure the normal operation of the equipment.

[0059] The present invention also discloses a method for reducing the discharge of APT high-salt wastewater, comprising the following steps:

[0060] S1. Pour wastewater into the filter tank and add precipitant for mixed precipitation;

[0061] S2, collecting suspended matter and impurities in the filter pool by ascending the filter collection box. After ascending, the cleaning mechanism moves along the length and scrapes the collected matter inside the filter collection box into the second chamber;

[0062] S3. The residual liquid in the collection is squeezed out by the squeezing mechanism, and the residual liquid is sucked back into the first chamber again.

Claims

1. A device for reducing the discharge of APT high-salt wastewater, characterized by: include: Filter tank (2); A partition (6), wherein the partition (6) is fixed in the filter tank (2), and the partition (6) divides the filter tank (2) into a first chamber (18) and a second chamber (19); A filter collection box (3) for collecting suspended matter is provided in the first chamber (18) and is movable upward and downward, and an opening is provided on a side of the filter collection box (3) facing the partition (6); A cleaning mechanism for scraping off suspended matter inside the filter collection box (3) is provided above the filter collection box (3); A squeezing mechanism is provided in the second chamber (19) for lifting and lowering, and a suction mechanism is connected between the first chamber (18) and the second chamber (19).

2. The APT high-salt wastewater reduction device according to claim 1, characterized in that: The filter collection box (3) is provided with a filter mesh, two connecting frames (4) are fixed on both sides of the filter pool (2), and a reeling mechanism (7) is fixed on the top of each of the four connecting frames (4). A connecting rope (5) is provided between the reeling mechanism (7) and the filter collection box (3).

3. The APT high-salt wastewater reduction device according to claim 2, characterized in that: The winding mechanism (7) comprises a fixed box, a winding shaft is rotatably connected in the fixed box, and the connecting rope (5) is wound around the winding shaft; A motor is fixed in the fixing box, and a driving shaft of the motor is connected to the winding shaft.

4. The APT high-salt wastewater reduction device according to claim 1, characterized in that: A top plate (8) is fixed between the four connecting frames (4), a first electric push rod (9) is fixed to the bottom end of the top plate (8), and a limiting plate (21) is fixed to the bottom end of the first electric push rod (9); An electric slide rail (12) is fixed to the bottom end of the limit plate (21) along the length direction, and a slider (10) is slidably matched on the electric slide rail (12). The cleaning mechanism includes a push plate (11), and the push plate (11) is fixed to the bottom end of the slider (10).

5. The APT high-salt wastewater reduction device according to claim 4, characterized in that: The length of the push plate (11) corresponds to the internal width of the filter collection box (3), and the bottom end of the push plate (11) is configured as a pointed end; The outer side of the limiting plate (21) is fitted with the inner side of the filter collection box (3).

6. The APT high-salt wastewater reduction device according to claim 1, characterized in that: A U-shaped frame (22) is provided outside the second chamber (19), and the U-shaped frame (22) is fixed to the outside of the filter tank (2); The extrusion mechanism includes a second electric push rod (14) and a pressure plate (13), wherein the second electric push rod (14) is fixed to the top end inside the U-shaped frame (22), and the pressure plate (13) is fixed to the bottom end of the second electric push rod (14), and the pressure plate (13) extends into the second chamber (19); A filter screen is fixed in the middle of the second chamber (19), and the filter screen is arranged below the pressure plate (13).

7. The APT high-salt wastewater reduction device according to claim 1, characterized in that: The suction mechanism comprises a pump body (20), the pump body (20) is fixed to the outside of the filter tank (2), and the first chamber (18), the second chamber (19) and the pump body (20) are all connected via a pipe (17).

8. The APT high-salt wastewater reduction device according to claim 1, characterized in that: The bottom end of the filter pool (2) is fixedly connected to a support frame (1), and the bottom end of the first chamber (18) is connected to a drain outlet (16); The bottom end of the second chamber (19) is connected to a waste outlet (15).

9. The APT high-salt wastewater reduction device according to claim 1, characterized in that: A camera is provided inside the filtering pool (2).

10. A method for reducing the discharge of APT high-salt wastewater, characterized by: The device for reducing the discharge of APT high-salt wastewater according to any one of claims 1 to 9 further comprises the following steps: S1. Pour wastewater into the filter tank and add precipitant for mixed precipitation; S2, collecting suspended matter and impurities in the filter pool by ascending the filter collection box. After ascending, the cleaning mechanism moves along the length and scrapes the collected matter inside the filter collection box into the second chamber; S3. The residual liquid in the collection is squeezed out by the squeezing mechanism, and the residual liquid is sucked back into the first chamber again.

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