Efficient precipitation and filtration integrated device for pickling and phosphating wastewater treatment

Abstract

The utility model discloses an efficient precipitation and filtration integrated device for pickling and phosphating wastewater treatment, which belongs to the technical field of sewage physicochemical treatment and is sequentially provided with an inclined tube precipitation tank, a quartz sand filter tank and an activated carbon filter tank. A secondary sedimentation tank for secondary sedimentation is arranged between the inclined tube sedimentation tank and the quartz sand filter tank, the inclined tube sedimentation tank comprises a dosing area and a sedimentation area, a water inlet of the inclined tube sedimentation tank is connected with a pipeline directly communicated with the bottom of the dosing area, and the upper end of the dosing area is communicated with the sedimentation area; a water outlet of the inclined tube sedimentation tank is communicated with a water inlet pipe of the secondary sedimentation tank, and a splitter plate for splitting sewage to prevent the sewage from flushing up sludge is arranged below a water outlet of the water inlet pipe of the secondary sedimentation tank; the inclined tube sedimentation tank has the beneficial effects that the inclined tube sedimentation tank which can be used for adding chemicals, mixing and precipitating at the same time is provided; the inclined tube sedimentation tank is matched with the secondary sedimentation tank, so that the technological process is simplified, the operation cost is reduced, the production period is shortened, and the production efficiency is improved.

Description

Technical field:

[0001] The utility model belongs to the technical field of sewage physicochemical treatment, and more specifically relates to a high-efficiency precipitation and filtration integrated device for pickling and phosphating wastewater treatment. Background technology:

[0002] Phosphating is a commonly used treatment process for metal surfaces. Its purpose is to form a phosphate chemical conversion film attached to the metal surface through chemical and electrochemical reactions. Before phosphating, degreasing and pickling are required to remove grease, scale and rust on the metal surface. Pickling and phosphating wastewater comes from pre-degreasing, degreasing, pickling, surface conditioning, passivation and other treatment processes. The main pollutants include COD, phosphates, SS, metals and a small amount of emulsified oil. It has the characteristics of complex water quality, many types of pollutants and high concentrations. All regions have relatively high requirements for the treatment and discharge of wastewater from the pickling and phosphating industry. Therefore, there is an urgent practical need to treat the pickling and phosphating wastewater to achieve standard discharge or reuse.

[0003] The national utility model patent with patent number 201921359863.2 discloses an environmental protection equipment for pickling and phosphating wastewater treatment, which solves the above problems well, but its process flow is complicated and the operating cost is high. Utility model content:

[0004] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides an integrated device for high-efficiency precipitation and filtration of pickling and phosphating wastewater treatment;

[0005] The technical problems to be solved are: complex process flow and high operating costs.

[0006] The specific technical solution of the utility model to solve the above technical problems is: the high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater is provided with an inclined tube sedimentation tank, a quartz sand filtration tank and an activated carbon filtration tank in sequence;

[0007] The inclined tube sedimentation tank is separated into an independent dosing area and a sedimentation area by a baffle plate, the dosing area is arranged at the front end of the sedimentation area, a water inlet of the inclined tube sedimentation tank is opened on the side wall of the front end of the dosing area, the water inlet of the inclined tube sedimentation tank is connected to a pipeline directly connected to the bottom of the dosing area through a flange, and a guide hole connecting the dosing area and the sedimentation area is opened at the upper end of the baffle plate;

[0008] A secondary sedimentation tank for secondary sedimentation is arranged between the inclined tube sedimentation tank and the quartz sand filter tank. The water outlet of the inclined tube sedimentation tank is connected with the secondary sedimentation tank inlet pipe arranged inside the secondary sedimentation tank through a pipeline. A diverter plate for diverting sewage to prevent sewage from flushing sludge is arranged below the outlet of the secondary sedimentation tank inlet pipe. A second mud storage tank is arranged below the diverter plate, and a second mud discharge port is opened on the bottom side wall of the second mud storage tank.

[0009] Furthermore, a first mud storage tank is arranged below the inclined tube sedimentation tank, and a first mud discharge port is opened on the bottom side wall of the first mud storage tank.

[0010] Furthermore, there is a height difference between the water inlet of the inclined tube sedimentation tank and the diversion hole, and the position of the water inlet of the inclined tube sedimentation tank is higher than the position of the diversion hole.

[0011] Furthermore, the upper end surface of the diverter plate is a downwardly inclined wedge, and the upper end surface of the diverter plate is welded to the end surface of the water outlet of the water inlet pipe of the secondary sedimentation tank.

[0012] Furthermore, the sedimentation plate is formed by hot-welding and splicing a preset number of inclined tube fillers, and the shape of the hot-welded and spliced ​​inclined tubes is a hexagonal honeycomb.

[0013] Furthermore, backwashing components for flushing the quartz sand filter pool and the activated carbon filter pool are respectively provided on the side walls of the quartz sand filter pool and the activated carbon filter pool.

[0014] Furthermore, a submersible pump is provided above the rear end side wall of the secondary sedimentation tank through a bracket, the water outlet of the submersible pump is connected to the quartz sand filter tank through a pipeline, and the quartz sand filter tank is connected to the activated carbon filter tank through a pipeline.

[0015] Furthermore, a first sewage outlet is provided on the side wall of the quartz sand filter pool, and a second sewage outlet is provided on the side wall of the activated carbon filter pool.

[0016] The beneficial effects of the utility model are:

[0017] One advantage of the utility model is that it provides an inclined tube sedimentation tank that can simultaneously perform dosing, mixing and sedimentation. The water inlet of the inclined tube sedimentation tank is connected to a pipeline directly connected to the bottom of the dosing area through a flange. The upper end of the dosing area is connected to the sedimentation area, so that water can enter from the bottom of the dosing area and flow into the sedimentation area from the upper end of the dosing area; the dosing tank adds the agent to the dosing area through the pipeline, and the pickling phosphating wastewater can be fully mixed with the agent during the floating process in the dosing area, so that after entering the sedimentation area, the pollutants are deposited in the first mud storage tank, and the supernatant flows into the second sedimentation tank through the sedimentation plate for secondary sedimentation; the inclined tube sedimentation tank cooperates with the second sedimentation tank to simplify the process flow, reduce operating costs, shorten the production cycle, and improve production efficiency, thereby solving the problems of complex process flow and high operating costs in the prior art.

[0018] One advantage of the utility model is that a diverter plate is provided below the water outlet of the water inlet pipe of the secondary sedimentation tank, which can divert the incoming water and effectively prevent the incoming water from flushing up the sludge in the second sludge storage tank, causing the flocs deposited in the second sludge storage tank to float again under the action of the incoming water, which not only affects the sedimentation effect but also affects the filtration of subsequent devices.

[0019] One advantage of the utility model is that the quartz sand filter pool and the activated carbon filter pool are both provided with backwash ports, which can remove pollutants from the filter media in the quartz sand filter pool and the activated carbon filter pool by backwashing the quartz sand filter pool and the activated carbon filter pool respectively through a backwash pump, thereby extending their service life and restoring their adsorption capacity, improving the stability of the quartz sand filter pool and the activated carbon filter pool, and reducing maintenance costs. Description of the drawings:

[0020] Attached Figure 1 It is a schematic diagram of the structure of the utility model; in the accompanying drawings:

[0021] 1. Inclined tube sedimentation tank; 11. Dosing area; 111. Water inlet of inclined tube sedimentation tank; 12. Sedimentation area; 121. Sedimentation plate; 13. Water outlet of inclined tube sedimentation tank; 14. First mud storage tank; 141. First mud outlet; 15. Baffle; 16. Diversion hole; 2. Quartz sand filter tank; 21. First sewage outlet; 3. Activated carbon filter tank; 31. Second sewage outlet; 4. Second sedimentation tank; 41. Water inlet pipe of second sedimentation tank; 42. Diverter plate; 43. Second mud storage tank; 431. Second mud outlet; 44. Submersible pump; 5. Backwash component. Specific implementation method:

[0022] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] Specific implementation of the utility model: the high-efficiency precipitation and filtration integrated device for pickling and phosphating wastewater treatment comprises an inclined tube sedimentation tank 1, a quartz sand filtration tank 2 and an activated carbon filtration tank 3;

[0024] The inclined tube sedimentation tank 1 is separated into an independent dosing area 11 and a sedimentation area 12 by a baffle 15. The dosing area 11 is arranged at the front end of the sedimentation area 12. A water inlet 111 of the inclined tube sedimentation tank is opened on the side wall of the front end of the dosing area 11. The water inlet 111 of the inclined tube sedimentation tank is connected to a pipeline directly connected to the bottom of the dosing area 11 through a flange, so that water can enter from the bottom of the dosing area 11. A guide hole 16 connecting the dosing area 11 and the sedimentation area 12 is opened at the upper end of the baffle 15. There is a height difference between the water inlet 111 and the diversion hole 16. The position of the water inlet 111 of the inclined tube sedimentation tank is higher than the position of the diversion hole 16. A dosing tank for adding reagents is provided on one side of the inclined tube sedimentation tank 1. The dosing tank adds the reagents into the dosing area 11 through a pipe by a metering pump, so that the pickling phosphating wastewater is fully fused with the reagents during the floating process of the dosing area 11; the dosing tank adds the reagents through the metering pump, which belongs to the prior art and is not within the protection scope of the present utility model, and will not be described in detail here;

[0025] A first mud storage tank 14 is arranged below the inclined tube sedimentation tank 1, and a first mud discharge port 141 is opened on the bottom side wall of the first mud storage tank 14. A valve for controlling opening and closing is arranged in the first mud discharge port 141, and the valve can be a butterfly valve or a ball valve; the sedimentation area 12 is provided with a sedimentation plate 121, and the sedimentation plate 121 is formed by hot-jointing a preset number of inclined tube fillers, and the shape of the hot-jointed inclined tube is a hexagonal honeycomb. The sedimentation plate 121 is arranged above the first mud storage tank 14, and an inclined tube sedimentation tank outlet 13 is opened on the side wall of the inclined tube sedimentation tank 1 above the sedimentation plate 121.

[0026] A secondary sedimentation tank 4 for secondary sedimentation is arranged between the inclined tube sedimentation tank 1 and the quartz sand filter tank 2. The outlet 13 of the inclined tube sedimentation tank is connected to the secondary sedimentation tank inlet pipe 41 arranged inside the secondary sedimentation tank 4 through a pipeline. The secondary sedimentation tank inlet pipe 41 is "L" shaped. A diverter plate 42 for diverting sewage to prevent sewage from flushing sludge is arranged below the outlet of the secondary sedimentation tank inlet pipe 41. The upper end face of the diverter plate 42 is a downwardly inclined wedge. The diverter plate 42 is welded to the outlet end face of the secondary sedimentation tank inlet pipe 41. The diverter plate 42 can also be designed in the form of a triangular column or a semi-cylinder. As long as it can achieve the diversion effect, it belongs to the protection scope of the present utility model; a second mud storage tank 43 is arranged below the diverter plate 42, and a second row of the bottom side wall of the second mud storage tank 43 is provided. Mud outlet 431, a valve for controlling opening and closing is arranged in the second row of mud outlet 431, and the valve may be a butterfly valve or a ball valve; a submersible pump 44 for pumping water in the second sedimentation tank 4 into the quartz sand filter tank 2 is arranged on the rear end side wall of the second sedimentation tank 4 through a bracket, and the water outlet of the submersible pump 44 is connected with the quartz sand filter tank 2 through a pipeline, and the quartz sand filter tank 2 is connected with the activated carbon filter tank 3 through a pipeline; the submersible pump 44 is a prior art, and its parameters are Q=5-15m3 / h, H=10-20m, and N=1-2Kw.

[0027] With this structure, the water inlet 111 of the inclined tube sedimentation tank is connected to a pipeline directly connected to the bottom of the dosing area 11 through a flange, so that water can enter from the bottom of the dosing area 11 and flow into the sedimentation area 12 from the upper end of the dosing area 11; the dosing tank adds the reagent to the dosing area 11 through the pipeline, and the pickling phosphating wastewater can be fully mixed with the reagent during the floating process of the dosing area 11, so that after entering the sedimentation area 12, it is precipitated through the sedimentation plate 121, and the flocs are deposited in the first mud storage tank 14, and the supernatant flows into the secondary sedimentation tank 4 from the sedimentation plate 121;

[0028] The dosing mixing and sedimentation are arranged in the same device, which simplifies the process flow, reduces the operating cost, shortens the production cycle, and improves the production efficiency; the secondary sedimentation tank 4 is arranged at the rear of the inclined tube sedimentation tank 1, and the two cooperate with each other to improve the sedimentation efficiency; wherein a diverter plate 42 is arranged below the outlet of the water inlet pipe 41 of the secondary sedimentation tank, which can divert the incoming water and effectively prevent the incoming water from flushing up the sludge in the second sludge storage tank 43, thereby causing the pollutants deposited in the second sludge storage tank 43 to float up again, affecting the sedimentation effect and the filtration of subsequent devices.

[0029] As a preferred embodiment, the quartz sand filter pool 2 is configured as follows:

[0030] The interior of the quartz sand filter pool 2 is a closed space, and a backwashing component 5 for flushing the quartz sand filter pool 2 is provided on the side wall of the quartz sand filter pool 2, and the backwashing component 5 includes a backwashing water inlet and a backwashing water outlet; a quartz sand filter pool 2 water inlet is provided on the front side wall of the quartz sand filter pool 2, and the quartz sand filter pool 2 water inlet is connected to the water outlet of the submersible pump 44 through a pipeline;

[0031] A quartz sand filter plate is arranged inside the quartz sand filter pool 2, and the filter plate is divided into an upper quartz sand filter plate and a lower quartz sand filter plate, and the upper quartz sand filter plate and the lower quartz sand filter plate enclose a quartz sand filter layer filled with quartz sand particles, and the upper quartz sand filter plate and the lower quartz sand filter plate are respectively fixed at the upper and lower positions inside the quartz sand filter pool 2;

[0032] The first sewage outlet 21 for draining and discharging sewage from the filter pool, a backwash water inlet and a quartz sand filter pool outlet are provided below the lower quartz sand filter plate and located on the side wall of the quartz sand filter pool 2; the quartz sand backwash water outlet is provided above the upper quartz sand filter plate and located on the side wall of the quartz sand filter pool 2; the first sewage outlet 21, the quartz sand backwash water inlet and the quartz sand backwash water outlet are all provided with valves for controlling opening and closing, and the valves may be butterfly valves or ball valves; the quartz sand backwash water inlet and the quartz sand backwash water outlet are respectively connected to the backwash pump arranged on the outside of the quartz sand filter pool 2 through pipelines; the quartz sand filter pool outlet is connected to the activated carbon filter pool 3 through a pipeline.

[0033] As a preferred embodiment, the activated carbon filter pool 3 is configured as:

[0034] The interior of the activated carbon filter pool 3 is a closed space, and a backwashing component 5 for flushing the activated carbon filter pool 3 is provided on the side wall of the activated carbon filter pool 3, and the backwashing component 5 includes a backwashing water inlet and a backwashing water outlet; an activated carbon filter plate is arranged below the activated carbon filter pool 3, and the activated carbon filter plate is divided into an activated carbon upper filter plate and an activated carbon lower filter plate, and the activated carbon upper filter plate and the activated carbon lower filter plate enclose an activated carbon filter layer filled with activated carbon; an activated carbon backwashing water outlet and an activated carbon filter pool 3 water inlet are provided on the side wall of the activated carbon filter pool 3 above the activated carbon upper filter plate, The water inlet of the activated carbon filter pool 3 is connected to the water outlet of the quartz sand filter pool through a pipeline; a second sewage outlet 31 for draining and discharging sewage from the filter pool, an activated carbon backwash water inlet and an activated carbon filter pool 3 outlet are provided below the activated carbon lower filter plate and located on the side wall of the activated carbon filter pool 3; the second sewage outlet 31, the activated carbon backwash water inlet and the activated carbon backwash water outlet are all provided with valves for controlling opening and closing, and the valves can be butterfly valves or ball valves; the activated carbon backwash water inlet and the activated carbon backwash water outlet are respectively connected to the backwash pump arranged on the outside of the activated carbon filter pool 3 through pipelines.

[0035] With this structure, the quartz sand filter pool 2 and the activated carbon filter pool 3 are both provided with backwashing components 5, and are respectively connected to the backwashing pumps arranged on the outside. The quartz sand filter pool 2 and the activated carbon filter pool 3 will be clogged with suspended particles after being used for a long time. By backwashing the quartz sand filter pool 2 and the activated carbon filter pool 3 respectively with the backwashing pump, the pollutants in the filter materials in the quartz sand filter pool 2 and the activated carbon filter pool 3 can be removed, their service life can be extended and their adsorption capacity can be restored; the stability of the quartz sand filter pool 2 and the activated carbon filter pool 3 can also be improved, and the maintenance cost can be reduced.

[0036] It should be noted that the utility model is an integrated device for high-efficiency precipitation and filtration for treating pickling and phosphating wastewater. When working, the sewage to be treated is pumped from the regulating tank into the inclined tube sedimentation tank 1 through the water inlet pump. The regulating tank can regulate the pickling and phosphating wastewater, which belongs to the prior art and will not be described in detail here. The outer side of the water inlet 111 of the inclined tube sedimentation tank is connected to the water inlet pump through a pipeline, and the inner side of the water inlet 111 of the inclined tube sedimentation tank is directly connected to the bottom of the dosing area 11 through a pipeline, so that water is inlet from the bottom of the dosing area 11, and the pickling and phosphating wastewater enters the dosing area 11 from the water inlet 111 of the inclined tube sedimentation tank, and the dosing tank is connected to the dosing area 11 through the water inlet 111 of the inclined tube sedimentation tank. The reagent is added into the dosing area 11 through the metering pump through the pipeline, so that the pickling phosphating wastewater is fully integrated with the reagent during the floating process of the dosing area 11; polyaluminum chloride, calcium oxide and polyacrylamide are added in sequence, and the chemical oxygen demand, phosphate, suspended particles, metal ions and a small amount of emulsified oil in the pickling phosphating wastewater are deposited and removed through flocculation and precipitation; the pickling phosphating wastewater mixed with the reagent flows into the inclined tube sedimentation area 12 through the top of the dosing area 11, and the flocs are deposited in the first sludge storage tank 14, and the supernatant flows into the second sedimentation tank 4 from the outlet 13 of the inclined tube sedimentation tank through the sedimentation plate 121.

[0037] The secondary sedimentation tank 4 will complete the secondary sedimentation of suspended particles. The pickling and phosphating wastewater after passing through the inclined tube sedimentation tank 1 enters the secondary sedimentation tank inlet pipe 41 through the pipeline from the inclined tube sedimentation tank outlet 13. The pickling and phosphating wastewater after precipitation in the inclined tube sedimentation tank 1 flows into the secondary sedimentation tank 4 through the pipeline connected with the flange in the form of top water inlet under the action of gravity flow, and then flows into the secondary sedimentation tank 4 through the diverter plate 42. The diverter plate 42 prevents the inflow from flushing the sludge at the bottom of the secondary sedimentation tank 4. The pickling and phosphating wastewater after precipitation in the inclined tube sedimentation tank 1 sinks the suspended particles to the second mud storage tank 43 under the action of gravity, and the pickling and phosphating wastewater after secondary precipitation is pumped into the quartz sand filter tank 2 through the submersible pump 44.

[0038] The quartz sand filter pool 2 further removes the residual suspended matter in the water, and the submersible pump 44 is connected to the quartz sand sedimentation tank through a flange-connected pipeline. A quartz sand filter plate is installed at the bottom of the quartz sand filter pool 2, and quartz sand of different particle sizes is filled above the quartz sand filter plate. The pickling and phosphating wastewater after secondary precipitation enters from the water inlet of the quartz sand filter pool 2 through the submersible pump 44, and is filtered through the quartz sand filter layer to further remove the residual suspended matter in the water. The pickling and phosphating wastewater after quartz sand filtration flows into the activated carbon filter pool 3 from the water outlet of the quartz sand filter pool 2 through a flange-connected pipeline;

[0039] The pickling and phosphating wastewater after quartz sand filtration flows into the activated carbon filter tank 3 from the activated carbon water inlet under the action of water pressure, and is filtered through the activated carbon filter layer to further remove residual suspended matter and small molecular substances such as metal ions and pigments in the water, thereby completing the filtration of the pickling and phosphating wastewater; and then the filtered water is discharged through the water outlet of the activated carbon filter tank 3.

[0040] Backwashing of quartz sand and activated carbon filter pool 3: When the top pressure of quartz sand filter pool 2 increases to 0.3MPa and the water output of activated carbon outlet is greatly reduced, it is necessary to start the backwash pump to backwash the filtration treatment system; first, turn off the water inlet pump, close the water inlet butterfly valve of quartz sand filter pool 2, close the water outlet butterfly valve of activated carbon filter pool 3, open the bottom backwashing water inlet butterfly valve of quartz sand filter pool 2 and activated carbon filter pool 3, open the top backwashing drain butterfly valve of quartz sand filter pool 2 and activated carbon filter pool 3, and turn on the backwash pump for backwashing; after the backwashing is completed, turn off the backwash pump to stop backwashing, close the top backwashing drain butterfly valve of quartz sand filter pool 2 and activated carbon filter pool 3, close the bottom backwashing water inlet butterfly valve of quartz sand filter pool 2 and activated carbon filter pool 3, open the water inlet butterfly valve of quartz sand filter pool 2, and open the water outlet butterfly valve of activated carbon filter pool 3. At this time, the equipment enters the sewage filtration state.

[0041] Sludge discharge: The first sludge discharge port 141 and the second sludge discharge port 431 are connected to the sludge thickening tank through pipelines, respectively. The pipelines are switched by butterfly valves. The inclined tube sedimentation tank 1 and the secondary sedimentation tank 4 are discharged into the sludge thickening tank through the first sludge discharge port 141 and the second sludge discharge port 431, respectively. When serious sludge leakage occurs at the top of the inclined tube of the inclined tube sedimentation tank 1 or the suspended solids content in the effluent of the secondary sedimentation tank 4 is too high, the water inlet pump is closed to stop the water inlet, and the butterfly valves of the first sludge discharge port 141 and the second sludge discharge port 431 are opened. Excess sludge flows out of the inclined tube sedimentation tank 1 and the secondary sedimentation tank 4 under the action of gravity flow and flows into the sludge thickening tank through the pipeline.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency integrated precipitation and filtration device for treating pickling and phosphating wastewater, which is provided with an inclined tube sedimentation tank (1), a quartz sand filtration tank (2) and an activated carbon filtration tank (3) in sequence; characterized in that: The inclined tube sedimentation tank (1) is separated into an independent dosing zone (11) and a sedimentation zone (12) by a baffle plate (15); the dosing zone (11) is arranged at the front end of the sedimentation zone (12); a water inlet (111) of the inclined tube sedimentation tank is provided on the side wall at the front end of the dosing zone (11); the water inlet (111) of the inclined tube sedimentation tank is connected to a pipeline directly connected to the bottom of the dosing zone (11) via a flange; and a flow guide hole (16) is provided at the upper end of the baffle plate (15) for connecting the dosing zone (11) and the sedimentation zone (12); A secondary sedimentation tank (4) for secondary sedimentation is arranged between the inclined tube sedimentation tank (1) and the quartz sand filter tank (2); a sedimentation plate (121) is arranged in the sedimentation area (12); an inclined tube sedimentation tank outlet (13) is provided on the side wall of the inclined tube sedimentation tank (1) above the sedimentation plate (121); the inclined tube sedimentation tank outlet (13) is connected to a secondary sedimentation tank inlet pipe (41) arranged inside the secondary sedimentation tank (4) through a pipeline; a diverter plate (42) for diverting sewage to prevent sewage from flushing sludge is arranged below the outlet of the secondary sedimentation tank inlet pipe (41); a second mud storage tank (43) is arranged below the diverter plate (42); a second mud discharge port (431) is provided on the bottom side wall of the second mud storage tank (43).

2. The high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater according to claim 1 is characterized in that A first mud storage tank (14) is provided below the inclined tube sedimentation tank (1), and a first mud discharge port (141) is provided on a side wall at the bottom of the first mud storage tank (14).

3. The high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater according to claim 1 is characterized in that There is a height difference between the water inlet (111) of the inclined tube sedimentation tank and the diversion hole (16), and the position of the water inlet (111) of the inclined tube sedimentation tank is higher than the position of the diversion hole (16).

4. The high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater according to claim 1 is characterized in that The upper end surface of the diverter plate (42) is in a downwardly inclined wedge shape, and the upper end surface of the diverter plate (42) is welded to the outlet end surface of the secondary sedimentation tank water inlet pipe (41).

5. The high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater according to claim 1 is characterized in that The precipitation plate (121) is formed by hot-welding and splicing a preset number of inclined tube fillers, and the shape of the hot-welded and spliced ​​inclined tubes is a hexagonal honeycomb.

6. The high-efficiency precipitation and filtration integrated device for treating pickling and phosphating wastewater according to claim 1 is characterized in that The side walls of the quartz sand filter pool (2) and the activated carbon filter pool (3) are respectively provided with backwashing components (5) for flushing the quartz sand filter pool (2) and the activated carbon filter pool (3).

7. The high-efficiency integrated precipitation and filtration device for treating pickling and phosphating wastewater according to claim 1 is characterized in that A submersible pump (44) is arranged above the rear end side wall of the secondary sedimentation tank (4) via a bracket, and a water outlet of the submersible pump (44) is connected to the quartz sand filter tank (2) via a pipeline, and the quartz sand filter tank (2) is connected to the activated carbon filter tank (3) via a pipeline.

8. The high-efficiency integrated precipitation and filtration device for treating pickling and phosphating wastewater according to claim 6 is characterized in that A first sewage outlet (21) is provided on the side wall of the quartz sand filter pool (2), and a second sewage outlet (31) is provided on the side wall of the activated carbon filter pool (3).

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