Industrial wastewater treatment tank

Abstract

The utility model belongs to the technical field of how to treat precipitates in wastewater treatment ponds, and particularly relates to an industrial wastewater treatment pond which comprises a wastewater liquid inlet pipe, a flocculant liquid inlet pipe and a mud scraper capable of moving along the inner wall of the treatment pond, in an initial state, the mud scraper is tightly attached to the inner wall of the treatment pond, the industrial wastewater treatment pond further comprises a partition plate, and the partition plate is fixedly connected with the mud scraper. The partition plate and the sludge scraping plate are arranged in parallel at an interval, the top surface of the partition plate is higher than the liquid level of wastewater, the bottom surface of the partition plate is higher than the inner bottom wall of the treatment tank, in an initial state, the wastewater inlet pipe and the flocculant inlet pipe are both arranged above the treatment tank, a pipe orifice of the wastewater inlet pipe faces the inner side of the partition plate, and a pipe orifice of the flocculant inlet pipe faces the outer side of the partition plate. A pipe opening of the flocculating agent liquid inlet pipe is positioned between the partition plate and the mud scraping plate; a reaction area is formed by arranging the partition plate moving along with the mud scraping plate, most suspended solids are limited in the reaction area, the mud scraping plate can drive the partition plate to reciprocate within a short distance, the stirring effect can be achieved, and contact is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an industrial wastewater treatment pool. Background Art

[0002] During the production process of PCB boards, various types of wastewater will be generated, including organic wastewater, ink wastewater, nickel-containing wastewater, etc. When the above types of wastewater are precipitated, flocculants need to be added for precipitation to remove suspended matter and colloids in the wastewater. The precipitate forms sludge and accumulates at the bottom of the sewage pool. The sludge is pushed to the sludge discharge port through the scraper to complete the sludge cleaning.

[0003] In existing sewage pools, there is often only one flocculant injection port. For sewage pools with larger areas, the flocculant cannot easily come into contact with sewage in distant areas, resulting in poor treatment effects. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an industrial wastewater treatment pool, which solves the technical problem that in the existing sewage pool, there is often only one flocculant injection port, and for sewage pools with larger areas, the flocculant cannot easily come into contact with sewage in more distant areas, resulting in poor treatment effect.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An industrial wastewater treatment tank comprises a wastewater inlet pipe, a flocculant inlet pipe and a scraper that can move along the inner wall of the treatment tank. In an initial state, the scraper is in close contact with the inner wall of the treatment tank. The invention also comprises a partition, which is fixedly connected to the scraper. The partition and the scraper are arranged in parallel with each other, the top surface of the partition is higher than the wastewater liquid level, and the bottom surface of the partition is higher than the inner bottom wall of the treatment tank. In an initial state, the pipe mouth of the wastewater inlet pipe faces the inner side of the partition, and the pipe mouth of the flocculant inlet pipe is located above the partition and the scraper.

[0007] Working principle: In the initial state, a reaction zone is formed between the partition and the scraper, and the wastewater is discharged through the wastewater inlet pipe. The formed water flow rushes to the partition and is blocked by the partition, flows into the reaction zone, and flows to other areas between the partition and the bottom of the treatment tank, but most of the suspended matter is intercepted in the reaction zone. Then the flocculant is added into the reaction zone through the flocculant inlet pipe, so that the flocculant and the suspended matter are in full contact; the scraper drives the partition to move back and forth in a short distance, which can play a stirring role and make the contact more complete.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] A reaction zone is formed by setting a partition that moves with the scraper, and most of the suspended matter is confined in the reaction zone. The scraper can drive the partition to move back and forth in a short distance, which can play a stirring role and make the contact more complete.

[0010] As a preferred embodiment of the utility model, it also includes a moving mechanism, which includes a guide rail and a drive motor. The guide rail is arranged on the outer wall of the treatment pool, and the drive motor is slidably installed on the guide rail. A rack is arranged on the guide rail along the moving direction of the scraper. The output shaft of the drive motor is equipped with a gear meshing with the rack. The housing of the drive motor is fixedly connected to a connecting frame, and the scraper and the partition are both fixedly connected to the connecting frame.

[0011] Beneficial effect: by arranging the gear and the rack to cooperate, when the driving motor is working, it can drive the connecting frame to move along the guide rail, thereby driving the scraper plate and the partition plate to move along the treatment tank.

[0012] As a preferred embodiment of the utility model, the top surface of the scraper is higher than the wastewater level, and filtering holes are provided on the scraper.

[0013] Beneficial effect: After the sedimentation step is completed, there may still be unreacted suspended matter in the treated water. The scraper can be driven by the moving mechanism to move. Due to the filter holes, the suspended matter is pushed to the other side of the treatment tank, and then the liquid in the treatment tank is extracted to filter and reduce the impurities entering the next step. When the liquid is extracted, the suspended matter is mixed with the sludge and discharged.

[0014] As a preferred embodiment of the utility model, the inner bottom wall of the treatment pool is provided with a sludge discharge port, a valve is provided on the sludge discharge port, a top block is provided on the scraper, and when the partition follows the scraper to move to the other side of the treatment pool, the top block pushes open the valve.

[0015] Beneficial effect: The valve can be opened automatically by the movement of the scraper, and liquid can be extracted while scraping the mud. When the extraction is completed, the top block on the scraper pushes the valve open to start discharging the sludge.

[0016] As a preferred embodiment of the utility model, the valve includes a baffle and a compression spring, a sliding port is provided on the treatment pool, the baffle is slidably and sealingly connected to the sliding port and rests on the compression spring.

[0017] Beneficial effect: By providing a shielding plate and a compression spring and utilizing the elasticity of the compression spring, automatic resetting can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of an industrial wastewater treatment pool of the utility model;

[0019] Figure 2 It is a cross-sectional view of an embodiment of the industrial wastewater treatment pool of the utility model in an initial state;

[0020] Figure 3 It is a cross-sectional view of an embodiment of an industrial wastewater treatment pool of the utility model when discharging sludge.

[0021] The reference numerals include: treatment tank 1, wastewater inlet pipe 11, flocculant inlet pipe 12, sludge discharge port 13, moving mechanism 2, guide rail 21, drive motor 22, rack 23, gear 24, connecting frame 25, partition 3, top block 31, scraper plate 4, valve 5, baffle plate 51, compression spring 52. DETAILED DESCRIPTION

[0022] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0023] In the description of the present application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] See also Figure 1 , Figure 2 As shown, this embodiment discloses an industrial wastewater treatment tank, comprising a moving mechanism 2, a wastewater inlet pipe 11, a flocculant inlet pipe 12, a partition 3 and a scraper 4 that can move along the inner wall of the treatment tank 1. In the initial state, the scraper 4 is close to the inner wall of the treatment tank 1, the partition 3 is fixedly connected to the scraper 4, the partition 3 and the scraper 4 are arranged in parallel with each other, the top surface of the partition 3 is higher than the wastewater liquid level, and the bottom surface of the partition 3 is higher than the inner bottom ... In the state, the wastewater inlet pipe 11 and the flocculant inlet pipe 12 are both arranged above the treatment tank 1, the pipe mouth of the wastewater inlet pipe 11 faces the inner side of the partition 3, and the pipe mouth of the flocculant inlet pipe 12 is located between the partition 3 and the scraper 4; by setting the partition 3 that moves with the scraper 4, a reaction zone is formed, most of the suspended matter is confined in the reaction zone, and the scraper 4 can drive the partition 3 to move back and forth within a short distance, which can play a stirring role and make the contact more sufficient.

[0025] Among them, see Figure 1The moving mechanism 2 includes a guide rail 21 and a driving motor 22. The guide rail 21 is arranged on the outer wall of the treatment pool 1. The driving motor 22 is slidably installed on the guide rail 21. A rack 23 is arranged on the guide rail 21 along the moving direction of the scraper 4. The output shaft of the driving motor 22 is equipped with a gear 24 meshing with the rack 23. The housing of the driving motor 22 is fixedly connected with a connecting frame 25. The scraper 4 and the partition 3 are both fixedly connected to the connecting frame 25. By setting the gear 24 and the rack 23, when the driving motor 22 is working, it can drive the connecting frame 25 to move along the guide rail 21, thereby driving the scraper 4 and the partition 3 to move along the treatment pool 1.

[0026] The top surface of the scraper blade 4 is higher than the wastewater level, and filtering holes are provided on the scraper blade 4 .

[0027] Among them, see Figure 3 The inner bottom wall of the treatment pool 1 is provided with a sludge discharge port 13, and a valve 5 is provided on the sludge discharge port 13. The scraper 4 is provided with a top block 31. When the partition 3 follows the scraper 4 to move to the other side of the treatment pool 1, the top block 31 pushes open the valve 5.

[0028] In other embodiments, a sludge pump may be provided and connected to the sludge discharge port 13 to accelerate the discharge of sludge.

[0029] Among them, the valve 5 includes a baffle plate 51 and a compression spring 52. A sliding opening is provided on the treatment pool 1. The baffle plate 51 is slidably sealed and connected to the sliding opening and rests on the compression spring 52. By setting the baffle plate 51 and the compression spring 52, automatic resetting can be achieved by utilizing the elasticity of the compression spring 52.

[0030] Specific use (working) process:

[0031] In the initial state, a reaction zone is formed between the partition 3 and the scraper 4, and the wastewater is discharged through the wastewater inlet pipe 11. The formed water flow rushes to the partition 3 and is blocked by the partition 3, flows into the reaction zone, and flows to other areas between the partition 3 and the bottom of the treatment tank 1, but most of the suspended matter is intercepted in the reaction zone. Then, the flocculant is added into the reaction zone through the flocculant inlet pipe 12, so that the flocculant and the suspended matter are fully contacted; the scraper 4 drives the partition 3 to move back and forth within a short distance, which can play a stirring role and make the contact more complete.

[0032] After the sedimentation step is completed, there may still be unreacted suspended matter in the treated water. The scraper 4 can be moved by the moving mechanism 2. Due to the filter holes, the suspended matter is pushed to the other side of the treatment tank 1, and then the liquid in the treatment tank 1 is extracted to filter and reduce the impurities entering the next step. When the liquid is extracted, the suspended matter is mixed with the sludge and discharged.

[0033] The valve 5 can be opened automatically by the movement of the scraper blade 4, and liquid can be extracted while scraping the mud. When the extraction is completed, the push block 31 on the scraper blade 4 pushes the valve 5 open to start the discharge of the sludge.

[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An industrial wastewater treatment tank, comprising a wastewater inlet pipe, a flocculant inlet pipe and a scraper blade movable along the inner wall of the treatment tank, wherein in an initial state, the scraper blade is in close contact with the inner wall of the treatment tank, and is characterized in that: It also includes a partition, which is fixedly connected to the scraper plate, and the partition is arranged parallel to the scraper plate. The top surface of the partition is higher than the wastewater liquid level, and the bottom surface of the partition is higher than the inner bottom wall of the treatment tank. In the initial state, the pipe mouth of the wastewater inlet pipe faces the inside of the partition, and the pipe mouth of the flocculant inlet pipe is located above the partition and the scraper plate.

2. The industrial wastewater treatment pool according to claim 1, characterized in that: It also includes a moving mechanism, which includes a guide rail and a drive motor. The guide rail is arranged on the outer wall of the treatment pool, and the drive motor is slidably installed on the guide rail. A rack is arranged on the guide rail along the moving direction of the scraper. The output shaft of the drive motor is equipped with a gear meshing with the rack. The housing of the drive motor is fixedly connected to a connecting frame, and the scraper and the partition are both fixedly connected to the connecting frame.

3. The industrial wastewater treatment pool according to claim 1, characterized in that: The top surface of the scraper is higher than the wastewater level, and filtering holes are arranged on the scraper.

4. The industrial wastewater treatment pool according to claim 1, characterized in that: The inner bottom wall of the treatment pool is provided with a sludge discharge port, a valve is arranged on the sludge discharge port, a top block is arranged on the scraper, and when the partition follows the scraper to move to the other side of the treatment pool, the top block pushes open the valve.

5. The industrial wastewater treatment pool according to claim 4, characterized in that: The valve comprises a baffle plate and a compression spring. A sliding port is arranged on the treatment pool. The baffle plate is connected to the sliding port in a sliding sealing manner and rests against the compression spring.

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