An industrial wastewater pretreatment device

Abstract

The utility model discloses a kind of industrial wastewater pretreatment devices, including the sedimentation module, flocculation module and adjusting module connected in turn, the sedimentation module includes sedimentation tank, first stirring mechanism and sedimentation mechanism, the sedimentation mechanism is installed in sedimentation tank, first stirring mechanism is installed in the top of sedimentation tank and first stirring mechanism extends to sedimentation tank inside;The sedimentation mechanism includes several water distribution pipes and several sedimentation guide hopper;The industrial wastewater pretreatment device of the present application can preliminarily carry out sedimentation treatment to the sediment in wastewater under the action of sedimentation mechanism by continuously conveying the industrial wastewater to be treated into sedimentation tank, can carry out secondary sedimentation treatment to wastewater by flocculation module, finally adjust module is used to adjust the pH of wastewater, and wastewater is precipitated for the third time in this process;The device can dynamically pretreat wastewater, continuously precipitate industrial wastewater, improve the pretreatment efficiency of wastewater, save the pretreatment time of wastewater.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an industrial wastewater pretreatment device. Background Technology

[0002] Industrial wastewater treatment refers to the removal of pollutants from industrial wastewater through a combination of processes to ensure that it meets discharge standards. It typically consists of four stages: pretreatment, physicochemical treatment, biological treatment, and advanced treatment, with each stage employing appropriate technologies for different types of pollutants.

[0003] The pretreatment of industrial wastewater mainly involves filtering solid waste residues to improve the efficiency of subsequent wastewater treatment. Current wastewater pretreatment devices primarily treat wastewater through static sedimentation, which cannot dynamically treat wastewater. Large quantities of wastewater need to be collected and centrally treated, resulting in low pretreatment efficiency, long processing time, and inability to continuously treat industrial wastewater. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an industrial wastewater pretreatment device that can continuously treat industrial wastewater and improve the pretreatment efficiency of wastewater.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An industrial wastewater pretreatment device includes a sedimentation module, a flocculation module, and an adjustment module connected in sequence. The sedimentation module includes a sedimentation tank, a first stirring mechanism, and a sedimentation mechanism. The sedimentation mechanism is installed inside the sedimentation tank, and the first stirring mechanism is installed on the top of the sedimentation tank and extends into the sedimentation tank.

[0007] The sedimentation mechanism includes several water distribution pipes and several sedimentation guide buckets. Each sedimentation guide bucket is uniformly fixedly installed inside the sedimentation tank, with the smaller diameter end of the sedimentation guide bucket located at the top. A water inlet is opened in the middle of the sedimentation guide bucket, and several sedimentation ports are uniformly opened at the edge of the sedimentation guide bucket. Each water distribution pipe is uniformly installed at the bottom of the lowest sedimentation guide bucket, and several water distribution holes are uniformly opened at the bottom of the water distribution pipe. The water distribution pipe is connected to the water inlet located on the side of the sedimentation tank.

[0008] Furthermore, the water distribution pipe has a ring structure.

[0009] Furthermore, the first stirring mechanism includes a first motor and a first stirring paddle. The first motor is fixedly installed at the top of the sedimentation tank, and the first stirring paddle is connected to the output shaft of the first motor through a coupling. The first stirring paddle extends through the water inlet in the middle of each sedimentation guide bucket to the bottom of the sedimentation tank.

[0010] Furthermore, the flocculation module includes a flocculation tank and a second stirring mechanism. The lower end of the flocculation tank is connected to the outlet of the first water pump through a pipe, and the inlet of the first water pump is connected to the upper part of the sedimentation tank through a pipe. The second stirring mechanism includes a second motor and a second stirring paddle. The second motor is fixedly installed at the top of the flocculation tank, and the second stirring paddle is connected to the output shaft of the second motor through a coupling and is located inside the flocculation tank.

[0011] Furthermore, the regulating module includes a regulating tank and a bubble agitation mechanism. The upper part of the regulating tank has a drain outlet, and the lower part of the regulating tank is connected to the outlet of the second water pump through a pipe. The inlet of the second water pump is connected to the upper part of the flocculation tank through a pipe. The bubble agitation mechanism is installed inside the regulating tank. The pneumatic agitation mechanism includes a third motor, a pneumatic rotary joint, a connecting pipe, and an air distribution pipe. The third motor is fixedly installed at the top of the regulating tank. The output shaft of the third motor is connected to one end of the connecting pipe through the pneumatic rotary joint. The other end of the connecting pipe is connected to the middle of the air distribution pipe and is conductive. Several air outlets are evenly opened at the top of the air distribution pipe.

[0012] Furthermore, the bottom of the sedimentation tank, flocculation tank, and regulating tank are respectively provided with a first drain outlet, a second drain outlet, and a third drain outlet.

[0013] Furthermore, the sedimentation tank, flocculation tank, and regulating tank are all equipped with partition screens.

[0014] Compared with the prior art, the present invention provides an industrial wastewater pretreatment device, which has the following beneficial effects:

[0015] This industrial wastewater pretreatment device continuously feeds industrial wastewater into a sedimentation tank. Under the action of the sedimentation mechanism, the sediment in the wastewater is initially settled. The wastewater undergoes secondary sedimentation through the flocculation module. Finally, the pH of the wastewater is adjusted by the adjustment module, and a third sedimentation occurs during this process. This device can dynamically pretreat wastewater and continuously settle industrial wastewater, improving the pretreatment efficiency and saving pretreatment time. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a structural diagram of the present invention.

[0018] In the diagram: 1. Sedimentation tank, 11. Inlet, 12. First drain outlet, 13. First motor, 14. First agitator, 15. Inlet pipe, 16. Distribution pipe, 17. Sedimentation guide hopper, 18. Water inlet, 19. Sedimentation port, 2. Flocculation tank, 21. Second motor, 22. Second agitator, 23. Second drain outlet, 3. Regulating tank, 31. Third motor, 32. Pneumatic rotary joint, 33. Connecting pipe, 34. Air distribution pipe, 35. Drain outlet, 36. Third drain outlet, 4. Separator, 51. First water pump, 52. Second water pump. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 2 The present invention provides the following technical solution:

[0021] An industrial wastewater pretreatment device includes a sedimentation module, a flocculation module, and a regulating module connected in sequence. The sedimentation module, flocculation module, and regulating module perform multi-stage sedimentation treatment on industrial wastewater. The sedimentation module includes a sedimentation tank 1, a first stirring mechanism, and a sedimentation mechanism. The sedimentation mechanism is installed inside the sedimentation tank 1. The first stirring mechanism is installed on the top of the sedimentation tank 1 and extends into the sedimentation tank 1. The stirring mechanism is used to discharge sludge from the sedimentation tank 1 when the sedimentation tank 1 is being discharged.

[0022] The sedimentation mechanism includes several water distribution pipes 16 and several sedimentation guide hoppers 17. Each sedimentation guide hopper 17 is uniformly and fixedly installed inside the sedimentation tank 1, with the smaller diameter end of the sedimentation guide hopper 17 located at the top, i.e., the sedimentation guide hopper 17 has an inverted bucket-shaped structure. A water inlet 18 is opened in the middle of the sedimentation guide hopper 17 for the flow of wastewater. Several sedimentation ports 19 are uniformly opened at the edge of the sedimentation guide hopper 17 for the flow of sediment in the wastewater, so that the sediment settles in the sedimentation guide hopper 16. Under the guiding effect of 7, the water flows through the sedimentation port 19 and settles to the bottom of the sedimentation tank 1. Each water distribution pipe 16 is evenly installed at the bottom of the sedimentation guide hopper 17 located at the bottom. The water distribution pipe 16 has a ring structure and several water distribution holes are evenly opened at the bottom of the water distribution pipe 16 to form a downward water flow, which facilitates the sedimentation of the sediment in the wastewater. The water distribution pipe 16 is connected to the water inlet 11 located on the side of the sedimentation tank 1. The water inlet 11 is connected to the wastewater source, so that the wastewater can be transported to the ring water distribution pipe 16.

[0023] The first stirring mechanism includes a first motor 13 and a first stirring paddle 14. The first motor 13 is fixedly installed at the top of the sedimentation tank 1. The first stirring paddle 14 is connected to the output shaft of the first motor 13 through a coupling. The first stirring paddle 14 extends through the water inlet at the middle of each sedimentation guide bucket 17 to the bottom of the sedimentation tank 1. The first stirring mechanism is used to stir the sludge when the sedimentation tank 1 is discharged, so as to facilitate the discharge of the sludge.

[0024] The flocculation module includes a flocculation tank 2 and a second stirring mechanism. The lower end of the flocculation tank 2 is connected to the outlet of the first water pump 51 through a pipe, and the inlet of the first water pump 51 is connected to the upper part of the sedimentation tank 1 through a pipe, so that the first water pump 51 can transport the relatively clean wastewater in the upper part of the sedimentation tank 1 to the flocculation tank 2. The second stirring mechanism includes a second motor 21 and a second stirring paddle 22. The second motor 21 is fixedly installed at the top of the flocculation tank 2, and the second stirring paddle 22 is connected to the output shaft of the second motor 21 through a coupling and is located inside the flocculation tank 2. The second stirring mechanism is used to stir the wastewater and flocculant in the flocculation tank 2, so that the flocculant works better.

[0025] The regulating module includes a regulating tank 3 and a bubble agitation mechanism. The upper part of the regulating tank 3 has a drain outlet 35 for discharging pretreated wastewater to the next treatment unit. The lower part of the regulating tank 3 is connected to the outlet of the second water pump 52 via a pipe, and the inlet of the second water pump 52 is connected to the upper part of the flocculation tank 2 via a pipe. The bubble agitation mechanism is installed inside the regulating tank 3 and is used to agitate the wastewater within the regulating tank 3. The pneumatic agitation mechanism includes a third motor 31, a pneumatic rotary joint 32, a connecting pipe 33, and an air distribution pipe 34. The third motor 31 is fixedly installed at the top of the regulating tank 3. The output shaft of 31 is connected to one end of the connecting pipe 33 via a pneumatic rotary joint 32. The pneumatic rotary joint 32 is connected to an external high-pressure air source. While supplying high-pressure air into the connecting pipe 33, the connecting pipe 33 can be driven to rotate by the third motor 31. The other end of the connecting pipe 33 is connected to and connected to the middle of the air distribution pipe 34, thereby supplying high-pressure air into the air distribution pipe 34. Several air outlets are evenly opened at the top of the air distribution pipe 34. High-pressure air emerges from the air outlets and forms bubbles in the wastewater in the regulating tank 3, thereby stirring the wastewater in the regulating tank 3. Users can add the corresponding regulating agents into the regulating tank 3 as needed.

[0026] The bottom of the sedimentation tank 1, the flocculation tank 2 and the regulating tank 3 are respectively provided with a first drain outlet 12, a second drain outlet 23 and a third drain outlet 36, each of which is used to discharge the solid sediment in the tank.

[0027] Sedimentation tank 1, flocculation tank 2 and equalization tank 3 are all equipped with a partition screen 4. The mesh size of each partition screen 4 can be selected as needed. The partition screen 4 is used to reduce the escaping of sediment from the lower part of the tank to the upper part of the tank, so that the wastewater in the upper part of the tank has a relatively lower sediment content than the lower part.

[0028] The specific implementation process is as follows:

[0029] When using this industrial wastewater pretreatment device, first connect the inlet 11 of the sedimentation tank 1 to the wastewater source. Then start the device. The inlet 11 delivers wastewater through the inlet pipe 15 to each distribution pipe 16. The distribution holes at the bottom of each distribution pipe 16 discharge the wastewater downwards. The sediment in the wastewater gradually settles under the action of gravity. After the sedimentation tank 1 is full, wastewater is continuously fed into the sedimentation tank 1. Under the synergistic blocking and guiding effect of multiple sedimentation guide buckets 17, the sediment in the wastewater gradually settles on the upper surface of the sedimentation guide buckets 17 and settles from the sedimentation port 19 at the edge of the sedimentation guide buckets 17 to the bottom of the sedimentation tank 1. The wastewater after preliminary sedimentation is then conveyed upwards from the water outlet 18 in the middle of the sedimentation guide bucket. The wastewater passes through the mesh 4 at the top of the sedimentation tank 1, making the wastewater at the top of the sedimentation tank 1 have a lower sediment content than the bottom. Then, the first water pump 51 pumps the wastewater at the top of the sedimentation tank 1 to the flocculation tank 2. The user can then... 2. The appropriate flocculant is added to the opening at the top of the flocculation tank 2. The second motor 21 drives the second stirring paddle 22 to stir the wastewater in the flocculation tank 2, so that the flocculant can fully flocculate the wastewater. Then the wastewater passes through the mesh 4 at the top of the flocculation tank 2, and the flocculent matter in the wastewater remains below the mesh 4 of the flocculation tank 2. Then the second water pump 52 pumps the wastewater at the top of the flocculation tank 2 to the regulating tank 3. The user can add the appropriate regulator at the opening at the top of the regulating tank 3 to regulate and settle the wastewater in the regulating tank 3. At the same time, the third motor 31 drives the connecting pipe 33 and the air distribution pipe 34 to rotate. The pneumatic rotary joint 32 delivers the external high-pressure air source to the connecting pipe 33 and the air distribution pipe 34. The high-pressure air is discharged at the air distribution hole on the air distribution pipe 34, forming bubbles in the wastewater in the regulating tank 3, which in turn stirs the wastewater in the regulating tank 3. The treated wastewater passes through the mesh 4 in the regulating tank 3 and flows into the top of the regulating tank 3, and is discharged to the next treatment device through the drain outlet 35.

[0030] This industrial wastewater pretreatment device continuously feeds industrial wastewater to be treated into sedimentation tank 1. Under the action of the sedimentation mechanism, the sediment in the wastewater can be initially settled. The wastewater can undergo secondary sedimentation through the flocculation module. Finally, the pH of the wastewater is adjusted by the adjustment module, and a third sedimentation occurs during this process. This device can dynamically pretreat wastewater and continuously settle industrial wastewater, thereby improving the pretreatment efficiency and saving pretreatment time.

[0031] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An industrial wastewater pretreatment device, characterized by: It includes a sedimentation module, a flocculation module and an adjustment module connected in sequence. The sedimentation module includes a sedimentation tank, a first stirring mechanism and a sedimentation mechanism. The sedimentation mechanism is installed inside the sedimentation tank, and the first stirring mechanism is installed on the top of the sedimentation tank and extends into the sedimentation tank. The sedimentation mechanism includes several water distribution pipes and several sedimentation guide buckets. Each sedimentation guide bucket is uniformly fixedly installed inside the sedimentation tank, with the smaller diameter end of the sedimentation guide bucket located at the top. A water inlet is opened in the middle of the sedimentation guide bucket, and several sedimentation ports are uniformly opened at the edge of the sedimentation guide bucket. Each water distribution pipe is uniformly installed at the bottom of the lowest sedimentation guide bucket, and several water distribution holes are uniformly opened at the bottom of the water distribution pipe. The water distribution pipe is connected to the water inlet located on the side of the sedimentation tank.

2. The industrial wastewater pretreatment device according to claim 1, characterized in that: The water distribution pipe has a ring structure.

3. The industrial wastewater pretreatment device according to claim 1, characterized in that: The first stirring mechanism includes a first motor and a first stirring paddle. The first motor is fixedly installed at the top of the sedimentation tank. The first stirring paddle is connected to the output shaft of the first motor through a coupling. The first stirring paddle extends through the water inlet in the middle of each sedimentation guide bucket to the bottom of the sedimentation tank.

4. The industrial wastewater pretreatment device according to claim 1, characterized in that: The flocculation module includes a flocculation tank and a second stirring mechanism. The lower end of the flocculation tank is connected to the outlet of the first water pump through a pipe, and the inlet of the first water pump is connected to the upper part of the sedimentation tank through a pipe. The second stirring mechanism includes a second motor and a second stirring paddle. The second motor is fixedly installed at the top of the flocculation tank, and the second stirring paddle is connected to the output shaft of the second motor through a coupling and is located inside the flocculation tank.

5. The industrial wastewater pretreatment device according to claim 4, characterized in that: The regulating module includes a regulating tank and a bubble agitation mechanism. The upper part of the regulating tank has a drain outlet. The lower part of the regulating tank is connected to the outlet of the second water pump through a pipe. The inlet of the second water pump is connected to the upper part of the flocculation tank through a pipe. The bubble agitation mechanism is installed inside the regulating tank. The pneumatic agitation mechanism includes a third motor, a pneumatic rotary joint, a connecting pipe, and an air distribution pipe. The third motor is fixedly installed at the top of the regulating tank. The output shaft of the third motor is connected to one end of the connecting pipe through the pneumatic rotary joint. The other end of the connecting pipe is connected to the middle of the air distribution pipe and is conductive. Several air outlets are evenly opened at the top of the air distribution pipe.

6. The industrial wastewater pretreatment device according to claim 5, characterized in that: The sedimentation tank, flocculation tank, and regulating tank are respectively provided with a first drain outlet, a second drain outlet, and a third drain outlet at their bottoms.

7. The industrial wastewater pretreatment device according to claim 5, characterized in that: The sedimentation tank, flocculation tank, and regulating tank are all equipped with partition screens.

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