Safety processor for chemical waste liquid

By designing a safe chemical waste liquid processor, the auger plate and regulating mechanism are used to achieve quantitative treatment of waste liquid and rapid separation of solid impurities, which solves the problem that traditional processors cannot block the water source when the impurities reach the limit, and improves the treatment efficiency and separation effect.

CN120679252APending Publication Date: 2025-09-23NANTONG SHI ZHUANG CHEM
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Patent Information

Application Number
CN202510963380.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

Traditional chemical waste liquid treatment devices are unable to block the water source when the impurities reach the limit, resulting in reduced treatment efficiency. In addition, the precipitated solid impurities and waste liquid are difficult to separate and discharge quickly and are easily mixed.

Method used

A safe chemical waste liquid processor was designed, which included a filter assembly, an adjustment mechanism and an auger plate. The cooperation of the auger plate and the adjustment mechanism achieved quantitative treatment of the waste liquid and rapid separation and discharge of solid impurities. The auger plate and the sealing structure were used to control the flow of the waste liquid and ensure the separation of impurities and waste liquid.

Benefits of technology

It realizes the quantitative treatment of chemical waste liquid, improves the treatment efficiency, and can quickly separate and discharge the precipitated solid impurities, avoiding the re-mixing of impurities and waste liquid, and improving the treatment effect.

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Abstract

The invention discloses a safety treatment device for chemical waste liquid, and belongs to the technical field of chemical waste liquid treatment, the safety treatment device comprises a treatment box, a supporting box is fixed at the bottom of the treatment box, and a fixing box is arranged at the top of the treatment box; the filtering assembly is arranged between the fixing box and the discharging hopper and used for intercepting solid impurities in the chemical waste liquid, and a liquid conveying channel is formed in the side, close to the treatment box, of the fixing box; and the water storage tank is fixedly installed on the back face of the treatment tank, the water storage tank communicates with the interior of the treatment tank through a liquid drainage channel, and an adjusting mechanism is arranged between the water storage tank and the treatment tank. According to the safe treatment device for the chemical waste liquid, when impurities intercepted in the treatment device reach the limit, entering waste water can be blocked in time, so that follow-up sedimentation treatment of the waste water is facilitated, quantitative treatment of the chemical waste water is achieved, the treatment efficiency can be improved, and follow-up sedimentation solid impurities and waste liquid can be conveniently discharged respectively.
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Description

Technical Field

[0001] The invention relates to the technical field of chemical waste liquid treatment, in particular to a safe chemical waste liquid treatment device. Background Art

[0002] Chemical wastewater refers to process wastewater, cooling water, exhaust gas washing water, equipment and site flushing water and other wastewater discharged in chemical production, which contains a large amount of impurities, toxic substances and heavy metals. Therefore, it needs to be purified before it can be recycled or meet the emission standards, such as a chemical waste liquid drainage treatment device with announcement number CN220537658U. Technical problem: In the existing treatment device, during the chemical waste liquid treatment process, impurities or pollutants will adhere to the inside of the chemical waste liquid, thereby affecting the secondary filtration treatment. Different pollutants have different compositions and characteristics, which limits the applicability of the treatment device and may make some pollutants difficult to remove. Technical solution: A chemical waste liquid drainage treatment device includes a box body, a cover plate, a support rod, a sedimentation component, a funnel, a separation component, a permeation component and a circulation pipe. Compared with traditional chemical waste liquid treatment devices, the centrifuge body rotates in the assembled separation component, driving the waste liquid to centrifugal motion, separating the oil and water in the waste liquid, so that the applicability of the treatment device is not restricted. The waste liquid flows through the permeable membrane and the organic matter filter membrane, which can separate and remove organic matter, particulate matter and soluble substances in the waste liquid; For example, a device for safely treating chemical waste liquid with announcement number CN212559670U includes a sliding rod, a stirring plate, a rotating shaft, a cam, and a driving mechanism; the sliding rod passes through and is slidably arranged at the bottom of the filter screen; a plurality of stirring plates are symmetrically arranged on the left and right sides of the sliding rod part located in the filter screen; the bottom of the sliding rod located outside the filter screen is in contact with the cam; the cam is a combination of a semi-ellipsoid and a semi-circular sphere; the cam is fixed on a rotating shaft rotatably arranged in the filter housing; a driving mechanism for driving the rotating shaft to rotate is also provided on one side of the rotating shaft. The device for safely treating chemical waste liquid can stir the waste liquid being filtered by providing a sliding rod, a stirring plate, a cam, and a driving mechanism, so that small solid particles deposited at the bottom of the filter screen float up, thereby improving the filtering effect. However, the above-mentioned treatment device still has the following disadvantages during actual use: 1. Traditional processors are not convenient for quantitative treatment of chemical wastewater. When the impurities in the processor reach the limit, wastewater continues to be discharged. The lack of a structure to block the water source will not only reduce the smoothness of the flow, but also reduce the efficiency of wastewater treatment and is not conducive to the subsequent timely cleaning of impurities. 2. It is not convenient to quickly discharge the solid impurities and waste liquid after precipitation. During the discharge process, the solid impurities and waste liquid are easily mixed again, which affects the subsequent treatment of the solid impurities and waste liquid separately.

[0003] In response to the above problems, it is urgent to carry out innovative design based on the original processor. Summary of the Invention

[0004] The purpose of the present invention is to provide a safe processor for chemical wastewater to solve the problems proposed in the above background technology that traditional processors are not convenient for quantitative treatment of chemical wastewater, wastewater continues to be discharged when the impurities in the processor reach the limit, there is a lack of structure to block the water source, and it is not convenient to quickly discharge the precipitated solid impurities and waste liquid separately.

[0005] To achieve the above object, the present invention provides the following technical solution: a safe processor for chemical waste liquid, comprising a processing box, a support box fixed to the bottom of the processing box, a fixing box provided on the top of the processing box, and a lower hopper installed above the fixing box; It also includes: a filter assembly, which is arranged between the fixed box and the lower hopper, and is used to intercept solid impurities in the chemical waste liquid. The fixed box is provided with an infusion channel on one side close to the treatment box, and a waste discharge port is provided on the other side of the fixed box; The water storage tank is fixedly installed on the back of the treatment box. The water storage tank is connected to the interior of the treatment box through a drainage channel. An adjustment mechanism is provided between the water storage tank and the treatment box, and the adjustment mechanism is used to adjust the connection and closure of the drainage channel.

[0006] Preferably, the filter assembly includes a filter screen arranged on the inner side of the fixed box, and the edge of the upper end surface of the filter screen is fixedly connected to one end of the second traction rope, and the other end of the second traction rope is wound around the second winding shaft. When the garbage on the filter screen gradually increases, the filter screen can be driven to descend.

[0007] Preferably, the second winding shaft is symmetrically arranged on both sides of the fixed box, and the two adjacent second winding shafts are fixedly connected by a movable rod, and the movable rod is rotatably arranged on the block structure on the side of the fixed box. At the same time, a spring is provided at the rotation point of the movable rod, and the second traction rope is continuously extended after the filter screen is lowered.

[0008] Preferably, a first winding shaft is provided on the side of the lower hopper, a vortex spring is provided at the rotation point of the first winding shaft and the lower hopper, and one end of the first traction rope is wound around the outside of the first winding shaft, and a blocking block is fixed in the middle position of the first traction rope, and the blocking block is frustum-shaped, and the movable plate drives the first traction rope to continue to extend after it descends.

[0009] Preferably, the other end of the first traction rope passes through the center of the filter and is fixedly connected to the bottom edge of the movable plate, and the movable plate is embedded in the inner wall of the fixed box, and the movable plate and the fixed box are slidably connected. The movable plate is an inverted "L"-shaped structure, and the height of the movable plate is greater than the height of the infusion channel. After the movable plate is lowered, the infusion channel is blocked.

[0010] Preferably, a motor is installed on the support box on the left side, and a connecting shaft is connected to the output shaft of the motor, and the connecting shaft rotates and passes through the lower end of the processing box.

[0011] Preferably, an auger plate is fixedly installed on the end of the connecting shaft away from the motor, and a discharge pipe is sleeved on the outer side of the auger plate, and the discharge pipe is fixed to the side of the processing box away from the motor. The connecting shaft drives the auger plate to rotate, and can discharge the precipitated solid impurities.

[0012] Preferably, the adjustment mechanism includes a screw rod passing through the side of the processing box, and the top of the screw rod is meshed with the transmission shaft through a bevel gear set, and the end of the transmission shaft away from the bevel gear set is connected to the end of the connecting shaft close to the motor through a pulley mechanism. When the connecting shaft rotates, the transmission shaft is driven to rotate through the pulley mechanism, and then the screw rod is driven to rotate through the meshing transmission of the bevel gear set.

[0013] Preferably, the outer threaded sleeve of the screw rod is provided with a sealing plate, and the sealing plate is arranged on the inner side of the drainage channel, and the sealing plate and the processing box form a relative sliding structure. At the same time, the bottom of the sealing plate and one end of the fixed rod are fixedly connected, and the sealing plate can be driven down through the threaded transmission of the screw rod and the sealing plate.

[0014] Preferably, a connecting plate is fixed to the other end of the fixing rod, and the edge of the connecting plate slides in contact with the inner wall of the support box, and the interior of the support box is connected to each other through the air pipe and the space between the processing box and the piston plate. At the same time, the edge of the piston plate slides in contact with the inner wall of the processing box. When the sealing plate descends, the connecting plate is driven down by the fixing rod to squeeze out the gas in the support box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the safety processor of chemical wastewater can timely block the incoming wastewater when the impurities intercepted in the processor reach the limit, so as to facilitate subsequent precipitation treatment of the wastewater, realize quantitative treatment of chemical wastewater, improve treatment efficiency, and facilitate the subsequent discharge of precipitated solid impurities and wastewater. The specific contents are as follows: 1. As the weight of the garbage intercepted on the filter increases, its height continues to decrease, which can pull the second traction rope to extend continuously. After it drops to a certain distance, the edge of the filter can contact the movable plate and drive it to slide down. During the sliding process, the first traction rope is pulled to extend continuously. Therefore, when the movable plate drops to the lowest point, on the one hand, the infusion channel is blocked by the movable plate, and on the other hand, the first traction rope is lowered to drive the blocking block to block the inside of the lower hopper, blocking the external water source; Furthermore, when the filter screen is no longer pressed by gravity, the second reeling shaft is driven by the resilience of the spring to reel in the second traction rope, and at the same time, the first reeling shaft reels in the first traction rope, driving the filter screen to rise to the highest point, and the blocking block releases the blockage of the lower hopper, and the movable plate is raised by pulling the first traction rope, so that the infusion channel is opened for subsequent treatment of chemical wastewater; 2. The meshing transmission between the pulley mechanism and the bevel gear set drives the screw to rotate, and the threaded transmission between the screw and the sealing plate drives it down, so that the liquid in the treatment box can flow into the water storage tank for further treatment; Furthermore, when the sealing plate descends, the fixed rod and the connecting plate are driven to descend synchronously. The connecting plate squeezes the support box, so that the gas under the support box is transmitted to the space between the piston plate and the processing box through the gas pipe, and then pushes the piston plate to move inside the processing box, pushing the impurities deposited at the bottom of the processing box to the discharge pipe, accelerating the discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic cross-sectional view of the lower hopper structure of the present invention; Figure 4 Schematic diagram of the structure of the bevel gear set of the present invention; Figure 5 This is a schematic cross-sectional view of the support box of the present invention; Figure 6 This is a schematic diagram of the sealing plate structure of the present invention; Figure 7 This is a schematic diagram of the gas transmission pipe structure of the present invention; Figure 8 It is a schematic structural diagram of the water storage tank of the present invention.

[0017] In the figure: 1. Processing box; 2. Support box; 3. Fixed box; 4. Discharge hopper; 5. First reel; 6. First traction rope; 7. Sealing block; 8. Movable plate; 9. Waste outlet; 10. Infusion channel; 11. Filter; 12. Second traction rope; 13. Second reel; 14. Movable rod; 15. Motor; 16. Connecting shaft; 17. Auger plate; 18. Discharge pipe; 19. Transmission shaft; 20. Bevel gear set; 21. Screw; 22. Sealing plate; 23. Discharge channel; 24. Fixed rod; 25. Connecting plate; 26. Air pipe; 27. Piston plate; 28. Water tank. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-8 , the present invention provides the following technical solutions: Example 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical solutions: a safe treatment device for chemical waste liquid, including a treatment box 1, a support box 2 is fixed at the bottom of the treatment box 1, and a fixed box 3 is provided on the top of the treatment box 1, and a lower hopper 4 is installed above the fixed box 3; it also includes: a filter component, which is arranged between the fixed box 3 and the lower hopper 4, and the filter component is used to intercept solid impurities in the chemical waste liquid, and an infusion channel 10 is provided on the side of the fixed box 3 close to the treatment box 1, and a waste outlet 9 is provided on the other side of the fixed box 3; a water storage tank 28, which is fixedly installed on the back of the treatment box 1, and the water storage tank 28 is interconnected with the interior of the treatment box 1 through the drainage channel 23, and an adjustment mechanism is provided between the water storage tank 28 and the treatment box 1, and the adjustment mechanism is used to adjust the connection and closure of the drainage channel 23.

[0020] The existing processors are not convenient for quantitative treatment of chemical wastewater. When the impurities in the processor reach the limit, wastewater continues to be discharged. The lack of a structure to block the water source will not only reduce the smoothness of the flow, but also reduce the efficiency of wastewater treatment, and is not conducive to the subsequent timely cleaning of impurities. Figure 1-Figure 3As shown, the filter assembly includes a filter screen 11 arranged on the inner side of the fixed box 3, and the edge of the upper end surface of the filter screen 11 is fixedly connected to one end of the second traction rope 12, and the other end of the second traction rope 12 is wound around the second winding shaft 13; the second winding shaft 13 is symmetrically arranged on both sides of the fixed box 3, and the two adjacent second winding shafts 13 are fixedly connected by a movable rod 14, and the movable rod 14 is rotatably arranged on the block structure on the side of the fixed box 3, and a spring is provided at the rotation point of the movable rod 14; a first winding shaft 5 is provided on the side of the lower hopper 4, and a vortex spring is provided at the rotation point of the first winding shaft 5 and the lower hopper 4, and the outer side of the first winding shaft 5 One end of the first traction rope 6 is wrapped around it, and a blocking block 7 is fixed in the middle position of the first traction rope 6, and the blocking block 7 is truncated; the other end of the first traction rope 6 passes through the center of the filter screen 11 and is fixedly connected to the bottom edge of the movable plate 8, and the movable plate 8 is embedded in the inner wall of the fixed box 3, and the movable plate 8 and the fixed box 3 are slidably connected, the movable plate 8 is an inverted "L"-shaped structure, and the height of the movable plate 8 is greater than the height of the infusion channel 10; first, the chemical waste liquid that needs to be treated flows from the lower hopper 4 to the inside of the fixed box 3, and the solid waste in the chemical waste liquid is intercepted by the filter screen 11, and then the wastewater flows to the treatment box through the infusion channel 10 1 for sedimentation treatment, as the weight of the garbage on the filter screen 11 increases, the second traction rope 12 can be pulled to continuously extend, and the height of the filter screen 11 is also continuously lowered. After falling to a certain distance, the edge of the filter screen 11 can contact the movable plate 8 and drive the movable plate 8 to slide down. During the sliding process of the movable plate 8, the first traction rope 6 is pulled, so that the part wound on the first reel 5 is continuously extended. Therefore, when the filter screen 11 drives the movable plate 8 to drop to the lowest point, on the one hand, the infusion channel 10 is blocked by the movable plate 8, and the chemical waste liquid no longer enters the interior of the treatment box 1. On the other hand, the first traction rope 6 is lowered to drive the blocking block 7 to seal the interior of the lower hopper 4. The filter 11 is blocked by the blockage block 7, and the external water source is blocked so that the waste liquid can be processed subsequently. When the subsequent waste liquid processing is completed, the garbage on the filter screen 11 can be cleaned out through the waste outlet 9, so that the filter screen 11 is not suppressed by gravity, and the movable rod 14 is driven to rotate in the opposite direction by the resilience of the spring, and the second traction rope 12 is wound through the second winding shaft 13. At the same time, the first winding shaft 5 winds up the first traction rope 6 through the resilience of the vortex spring, driving the filter screen 11 to the highest point, and the blocking block 7 releases the blockage of the lower hopper 4, so that the chemical waste water can be processed subsequently. When the blocking block 7 rises, the movable plate 8 can be pulled up by the first traction rope 6 to open the infusion channel 10.

[0021] Example 2: The existing processor is not convenient for quickly discharging the solid impurities and waste liquid after precipitation. In the discharge process, it is easy to cause the solid impurities and waste liquid to mix again, affecting the subsequent treatment of the solid impurities and waste liquid separately. Therefore, this embodiment adopts the following technical solutions, such as Figure 2 and Figure 4-Figure 8 As shown, a motor 15 is installed on the support box 2 on the left, and a connecting shaft 16 is connected to the output shaft of the motor 15, and the connecting shaft 16 rotates and passes through the lower end of the processing box 1; an auger plate 17 is fixedly installed on the end of the connecting shaft 16 away from the motor 15, and a discharge pipe 18 is sleeved on the outer side of the auger plate 17, and the discharge pipe 18 is fixed to the side of the processing box 1 away from the motor 15; the adjustment mechanism includes a screw rod 21 that passes through the side of the processing box 1, and the top of the screw rod 21 is meshed with the transmission shaft 19 through the bevel gear set 20, and the transmission shaft 19 is away from the bevel gear set 20. The end is connected to the end of the connecting shaft 16 close to the motor 15 through a pulley mechanism; the outer threaded sleeve of the screw rod 21 is provided with a sealing plate 22, and the sealing plate 22 is arranged on the inner side of the drainage channel 23, and the sealing plate 22 and the treatment box 1 form a relative sliding structure, and at the same time, the bottom of the sealing plate 22 is fixedly connected to one end of the fixed rod 24; the other end of the fixed rod 24 is fixed with a connecting plate 25, and the edge of the connecting plate 25 slides in contact with the inner wall of the support box 2, and the interior of the support box 2 is communicated with the space between the treatment box 1 and the piston plate 27 through the air supply pipe 26, and the piston plate 27 The edge of the filter slides in contact with the inner wall of the treatment box 1; the waste liquid after preliminary filtration flows into the treatment box 1 for precipitation, and the reagent is added to the treatment box 1 so that the fine solid impurities in the liquid can be precipitated. Then the motor 15 drives the connecting shaft 16 to rotate, and the connecting shaft 16 drives the transmission shaft 19 to rotate through the transmission of the pulley mechanism, and then drives the screw rod 21 to rotate through the meshing transmission of the bevel gear set 20. The threaded transmission of the screw rod 21 and the sealing plate 22 can drive the sealing plate 22 to descend, so that the drainage channel 23 is in an open state, so that the liquid in the treatment box 1 can flow into the water storage tank 28 for In one step of processing, the sealing plate 22 descends and drives the fixed rod 24 and the connecting plate 25 to descend synchronously. The connecting plate 25 squeezes the support box 2, so that the gas under the support box 2 is transmitted to the space between the piston plate 27 and the treatment box 1 through the gas pipe 26, and then pushes the piston plate 27 to move inside the treatment box 1, pushing the impurities precipitated at the bottom of the treatment box 1 toward the discharge pipe 18. When the connecting shaft 16 rotates, it drives the auger plate 17 to rotate synchronously. Combined with the push of the piston plate 27, the impurities can be discharged through the auger plate 17, and the liquid flows into the water tank 28 through the drainage channel 23.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safe treatment device for chemical waste liquid, comprising a treatment box (1), a support box (2) fixed to the bottom of the treatment box (1), a fixing box (3) provided on the top of the treatment box (1), and a lower hopper (4) installed above the fixing box (3); It is characterized in that Also includes: A filter assembly is provided between the fixed box (3) and the lower hopper (4), and is used to intercept solid impurities in the chemical waste liquid. A liquid infusion channel (10) is provided on one side of the fixed box (3) close to the treatment box (1), and a waste outlet (9) is provided on the other side of the fixed box (3); A water storage tank (28) is fixedly mounted on the back of the treatment box (1). The water storage tank (28) is connected to the interior of the treatment box (1) through a drainage channel (23). An adjustment mechanism is provided between the water storage tank (28) and the treatment box (1), and the adjustment mechanism is used to adjust the connection and closure of the drainage channel (23).

2. The safe treatment device for chemical waste liquid according to claim 1, characterized in that: The filter assembly includes a filter screen (11) arranged inside the fixed box (3), and the edge of the upper end surface of the filter screen (11) is fixedly connected to one end of the second traction rope (12), and the other end of the second traction rope (12) is wound on the second reel (13).

3. The safe treatment device for chemical waste liquid according to claim 2, characterized in that: The second winding shafts (13) are symmetrically arranged on both sides of the fixed box (3), and two adjacent second winding shafts (13) are fixedly connected via a movable rod (14), and the movable rod (14) is rotatably arranged on a block structure on the side of the fixed box (3), and a spring is arranged at the rotation position of the movable rod (14).

4. The safe treatment device for chemical waste liquid according to claim 1, characterized in that: A first reel (5) is provided on the side of the lower hopper (4), a vortex spring is provided at the rotation point between the first reel (5) and the lower hopper (4), one end of a first traction rope (6) is wound around the outer side of the first reel (5), and a blocking block (7) is fixed at the middle position of the first traction rope (6), and the blocking block (7) is in a truncated cone shape.

5. The safe treatment device for chemical waste liquid according to claim 4, characterized in that: The other end of the first traction rope (6) passes through the center of the filter screen (11) and is fixedly connected to the bottom edge of the movable plate (8), and the movable plate (8) is embedded in the inner wall of the fixed box (3), and the movable plate (8) and the fixed box (3) are slidably connected. The movable plate (8) is an inverted "L"-shaped structure, and the height of the movable plate (8) is greater than the height of the infusion channel (10).

6. The safe treatment device for chemical waste liquid according to claim 1, characterized in that: The support box (2) on the left side is equipped with a motor (15), and the output shaft of the motor (15) is connected to a connecting shaft (16), and the connecting shaft (16) rotates and penetrates the lower end of the processing box (1).

7. The safe treatment device for chemical waste liquid according to claim 6, characterized in that: An auger plate (17) is fixedly mounted on one end of the connecting shaft (16) away from the motor (15), and a discharge pipe (18) is sleeved on the outer side of the auger plate (17), and the discharge pipe (18) is fixed to a side of the processing box (1) away from the motor (15).

8. The safe treatment device for chemical waste liquid according to claim 1, characterized in that: The adjustment mechanism includes a screw rod (21) that passes through the side of the processing box (1), and the top of the screw rod (21) is meshed with the transmission shaft (19) through the bevel gear set (20), and the end of the transmission shaft (19) away from the bevel gear set (20) is connected to the end of the connecting shaft (16) close to the motor (15) through a pulley mechanism.

9. The safe treatment device for chemical waste liquid according to claim 8, characterized in that: The outer threaded sleeve of the screw rod (21) is provided with a blocking plate (22), and the blocking plate (22) is arranged inside the drainage channel (23), and the blocking plate (22) and the processing box (1) form a relative sliding structure, and the bottom of the blocking plate (22) is fixedly connected to one end of the fixing rod (24).

10. The safe treatment device for chemical waste liquid according to claim 9, characterized in that: A connecting plate (25) is fixed to the other end of the fixing rod (24), and the edge of the connecting plate (25) slides in contact with the inner wall of the support box (2), and the interior of the support box (2) is connected to the space between the processing box (1) and the piston plate (27) through the air supply pipe (26), and the edge of the piston plate (27) slides in contact with the inner wall of the processing box (1).

Citation Information

Patent Citations

  • Safety treatment device for chemical waste liquid

    CN212559670U

  • Chemical waste liquid guiding and discharging treatment device

    CN220537658U