Flocculation sedimentation tank and method for deep treatment

Abstract

The invention provides a flocculent precipitation tank and method for advanced treatment in the technical field of flocculent precipitation tanks, and the flocculent precipitation tank comprises a grid type flocculation tank which is divided into a plurality of first flocculation sub-tanks; the last first flocculation sub-tank is provided with a water outlet; a first sludge discharge valve is arranged at the bottom of the first flocculation sub-tank; the integral flocculation tank comprises a water inlet tank and a secondary flocculation tank, the water inlet tank is communicated with the water outlet and the secondary flocculation tank; the second-stage flocculation tank is divided into a plurality of second flocculation sub-tanks; a sludge discharge hopper is arranged at the bottoms of the water inlet tank and the second flocculation sub-tank; a second sludge discharge valve is arranged on the sludge discharge hopper; the small water collecting tanks are erected on the transverse plates, and one ends of the small water collecting tanks extend out of the integral flocculation tank; the sludge tank is arranged on the side edges of the grid type flocculation tank and the integral type flocculation tank; one end of each sludge discharge pipe is communicated with the corresponding first sludge discharge valve or the second sludge discharge valve, and the other end of each sludge discharge pipe extends to the sludge tank. The device has the advantage that the cleaning efficiency and quality of the flocculation sedimentation tank are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of flocculation sedimentation tanks, in particular to a flocculation sedimentation tank and a method for deep treatment. Background Art

[0002] Flocculation sedimentation tank is a kind of equipment that uses the principle of flocculation and sedimentation to remove suspended matter in water. It is usually composed of dense inclined tubes or inclined plates. Under the action of gravity, the suspended impurities in the water slide down along the inclined tubes or inclined plates to the bottom of the tank and then discharged in a centralized manner. The design of flocculation sedimentation tank is based on the shallow pool sedimentation theory. By increasing the turbulence, a high-proportion, high-intensity, high-density small vortex is formed, thereby promoting the flocculation effect.

[0003] During the long-term operation of the flocculation sedimentation tank, a large amount of sludge will be produced. The activated sludge is easy to adhere to the inclined tube or inclined plate, which will affect the sedimentation effect and may even cause blockage. At the same time, under anaerobic conditions, the gas produced by anaerobic digestion will interfere with the sedimentation of the sludge when it rises, and bring the sludge that falls off the plate to the water surface to form a floating sludge layer. If these sludges are not cleaned in time, they will not only cause blockages, but also affect the water quality. Therefore, the sludge needs to be cleaned regularly. For the cleaning of sludge in flocculation sedimentation tanks, manual cleaning methods are traditionally adopted. Not only is the cleaning efficiency low, but some dead corners cannot be reached, resulting in poor cleaning quality and long-term accumulation of sludge in some dead corners.

[0004] Therefore, how to provide a deep treatment flocculation sedimentation tank and method to improve the efficiency and quality of flocculation sedimentation tank cleaning has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a flocculation sedimentation tank and method for deep treatment, so as to improve the efficiency and quality of cleaning of the flocculation sedimentation tank.

[0006] In a first aspect, the present invention provides a flocculation sedimentation tank for deep treatment, comprising:

[0007] At least one grid-type flocculation tank is provided with a plurality of vertical plates inside, and the grid-type flocculation tank is divided into a plurality of first flocculation sub-tanks by the vertical plates; the first flocculation sub-tanks are connected in sequence, so that the water in the first flocculation sub-tanks flows along a preset path, and the first first flocculation sub-tank is provided with a water inlet, and the last first flocculation sub-tank is provided with a water outlet; each first flocculation sub-tank is provided with a sedimentation component inside, and a first mud discharge valve is provided at the bottom;

[0008] At least one integral flocculation tank, including a water inlet tank and a secondary flocculation tank; one end of the water inlet tank is connected to the water outlet, and the other end is connected to the secondary flocculation tank; a plurality of transverse plates are arranged inside the secondary flocculation tank, and the secondary flocculation tank is divided into a plurality of second flocculation sub-tanks by the transverse plates, and the adjacent second flocculation sub-tanks are connected to each other; a plurality of mud discharge hoppers arranged side by side are arranged at the bottom of each of the water inlet tank and the second flocculation sub-tank, and a second mud discharge valve is arranged in the middle of each of the mud discharge hoppers; the integral flocculation tank is arranged side by side with the grid flocculation tank;

[0009] A plurality of small water collecting grooves are locked in the secondary flocculation tank by means of locking accessories, are erected on each of the horizontal plates, are perpendicular to the horizontal plates, and one end of the small water collecting grooves extends out of the integral flocculation tank;

[0010] A large water collecting tank, arranged on the outer side wall of the integral flocculation tank, having a height lower than that of the small water collecting tanks, and used for receiving water flowing out of the small water collecting tanks;

[0011] Two sludge tanks are symmetrically arranged on the sides of the grid-type flocculation tank and the integral flocculation tank;

[0012] A plurality of mud discharge pipes are arranged side by side, one end of which is connected to the corresponding first mud discharge valve or second mud discharge valve, and the other end of which extends to the mud tank;

[0013] A plurality of mud discharge pumps are respectively connected to the end of one of the mud discharge pipes;

[0014] A plurality of air pipes, each of which is connected to the first mud discharge valve or the second mud discharge valve;

[0015] A plurality of water pipes are respectively connected to the first mud discharge valve or the second mud discharge valve.

[0016] Furthermore, it also includes:

[0017] A mobile flushing mechanism is arranged at the top of the integral flocculation tank.

[0018] Furthermore, the mobile flushing mechanism comprises:

[0019] Two guide rails are arranged in parallel at the top of the integral flocculation tank;

[0020] A cleaning rack, both ends of which are slidably connected to one of the guide rails;

[0021] a cylinder, the power output end of which is connected to the cleaning rack;

[0022] A plurality of cleaning nozzles are arranged side by side on the cleaning rack, with the cleaning direction facing downward;

[0023] A cleaning pipe is connected to each of the cleaning nozzles.

[0024] Further, the precipitation component comprises:

[0025] a sedimentation rack, disposed in the first flocculation sub-tank;

[0026] A plurality of sedimentation plates are arranged obliquely on the sedimentation frame.

[0027] Furthermore, the bottom of the first flocculation sub-tank is funnel-shaped.

[0028] Furthermore, the bottom of the mud discharge hopper is funnel-shaped.

[0029] Furthermore, the mud discharge pipe is provided with a certain inclination angle.

[0030] Furthermore, the first mud discharge valve and the second mud discharge valve are both solenoid valves.

[0031] Furthermore, it also includes:

[0032] a PLC, connected to the first mud discharge valve, the second mud discharge valve, the mud discharge pump and the mobile flushing mechanism respectively;

[0033] A plurality of flow sensors are respectively arranged in the first mud discharge valve or the second mud discharge valve and connected to the PLC;

[0034] A plurality of water level sensors are respectively arranged in the grid-type flocculation tank and the integral flocculation tank, and are connected to the PLC.

[0035] In a second aspect, the present invention provides a flocculation sedimentation method for deep treatment, comprising the following steps:

[0036] Step S1, the raw water to be purified flows into the first flocculation sub-tank of the grid flocculation tank from the water outlet, flows along a preset path in each first flocculation sub-tank of the grid flocculation tank, and flocculates and precipitates through the sedimentation component during the flow of the raw water, and the precipitated sludge is discharged to the sludge discharge pipe through the first sludge discharge valve;

[0037] Step S2, the water of the last first flocculation sub-tank flows into the water inlet tank of the integrated flocculation tank through the water outlet, continues to flocculate and precipitate through the mud discharge bucket of the water inlet tank, and the precipitated sludge is discharged to the mud discharge pipe through the second mud discharge valve of the water inlet tank;

[0038] Step S3, the water from the water inlet tank flows into the secondary flocculation tank, continues to flocculate and precipitate through the sludge discharge hopper of the secondary flocculation tank, and the precipitated sludge is discharged to the sludge discharge pipe through the second sludge discharge valve of the secondary flocculation tank;

[0039] Step S4, PLC collects water quality data in real time through flow sensors and water level sensors, analyzes the water quality data through big data analysis technology, and dynamically controls the operation of the sludge pump and the mobile flushing mechanism based on the analysis results to automatically discharge and clean the flocculation sedimentation tank.

[0040] The advantages of the present invention are:

[0041] 1. A first mud discharge valve is arranged at the bottom of each first flocculation sub-tank of the grid flocculation tank, and a second mud discharge valve is arranged in the middle of each mud discharge hopper of the integral flocculation tank. Each first mud discharge valve and the second mud discharge valve are connected to the sludge tank through an inclined mud discharge pipe, and the end of the mud discharge pipe is connected with a mud discharge pump. The first mud discharge valve and the second mud discharge valve are connected with an air pipe and a water pipe. The mud discharge pump can automatically clean the sludge in the mud discharge pipe, and the first mud discharge valve and the second mud discharge valve can also be backwashed through the air pipe and the water pipe. The combination of positive and negative flushing can effectively improve the cleaning quality; and a mobile flushing mechanism including a guide rail, a cleaning rack, a cylinder, a cleaning nozzle, and a cleaning pipe is arranged at the top of the integral flocculation tank. The cylinder drives the cleaning rack to move on the guide rail, and then links the cleaning nozzle to move, so that the high-pressure water connected to the cleaning pipe is sprayed through the cleaning nozzle for high pressure, and the mud discharge hopper below is automatically flushed, which ultimately greatly improves the efficiency and quality of flocculation sedimentation tank cleaning.

[0042] 2. By setting up flow sensors and water level sensors, when a large amount of sludge is generated and not cleaned in time, the flow rate will become smaller, the water level will become higher, and the water quality will deteriorate. That is, water quality data can be collected through flow sensors and water level sensors. After analyzing the water quality data through big data analysis technology, the sludge pump and the mobile flushing mechanism can be dynamically controlled based on the analysis results to automatically discharge and clean the flocculation sedimentation tank, which greatly improves the degree of automation of the flocculation sedimentation tank. Cleaning does not require manual intervention, which greatly improves the efficiency of cleaning the flocculation sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0044] Figure 1 It is one of the structural schematic diagrams of a flocculation sedimentation tank for deep treatment of the present invention.

[0045] Figure 2 This is the second structural schematic diagram of a flocculation sedimentation tank for deep treatment of the present invention.

[0046] Figure 3 This is the third structural schematic diagram of a flocculation sedimentation tank for deep treatment of the present invention.

[0047] Figure 4 It is a top view of a flocculation sedimentation tank for deep treatment of the present invention.

[0048] Figure 5 It is a front cross-sectional view of a flocculation sedimentation tank for deep treatment according to the present invention.

[0049] Figure 6 It is a side sectional view of a flocculation sedimentation tank for deep treatment of the present invention.

[0050] Figure 7 It is a circuit principle block diagram of a flocculation sedimentation tank for deep treatment of the present invention.

[0051] Figure 8 The present invention is a flow chart of a flocculation sedimentation method for deep treatment.

[0052] Marking Description:

[0053] 100-a flocculation sedimentation tank for deep treatment, 1-a grid-type flocculation tank, 2-an integral flocculation tank, 3-a small water collection tank, 4-a large water collection tank, 5-a sludge tank, 6-a sludge discharge pipe, 7-a sludge discharge pump, 8-PLC, 9-a flow sensor, 10-a water level sensor, 20-a mobile flushing mechanism, 11-a vertical plate, 12-a first flocculation sub-tank, 13-a sedimentation assembly, 14-a first sludge discharge valve, 21-a water inlet tank, 22-a second flocculation tank, 221-a horizontal plate, 222-a second flocculation sub-tank, 2221-a sludge discharge bucket, 2222-a second sludge discharge valve, 131-a sedimentation rack, 132-a sedimentation plate, 201-a cylinder. DETAILED DESCRIPTION

[0054] The technical solution in the embodiment of the present application has the following overall idea: the sludge in the sludge discharge pipe 6 is automatically cleaned by the sludge discharge pump 7, and the first sludge discharge valve 14 and the second sludge discharge valve 2222 are backwashed through the air pipe and the water pipe, and the combination of forward and reverse flushing can effectively improve the cleaning quality; and a mobile flushing mechanism 20 is arranged at the top of the integral flocculation tank 2, and the cleaning frame is driven to move on the guide rail by the cylinder 201 of the mobile flushing mechanism 20, and then the cleaning nozzle is linked to move, so that the high-pressure water connected to the cleaning pipe is sprayed through the cleaning nozzle at high pressure, and the sludge discharge bucket 2221 below is automatically flushed, so as to improve the cleaning efficiency and quality of the flocculation sedimentation tank 100.

[0055] Please refer to Figures 1 to 8 As shown, a preferred embodiment of a flocculation sedimentation tank for deep treatment of the present invention comprises:

[0056] At least one grid flocculation tank 1 is provided with a plurality of vertical plates 11 inside, and the grid flocculation tank 1 is divided into a plurality of first flocculation sub-tanks 12 by the vertical plates 11; the first flocculation sub-tanks 12 are connected in sequence, so that the water flow in each of the first flocculation sub-tanks 12 flows along a preset path, and the first of the first flocculation sub-tanks 12 is provided with a water inlet (not shown), and the last of the first flocculation sub-tanks 12 is provided with a water outlet (not shown); each of the first flocculation sub-tanks 12 is provided with a sedimentation component 13 inside, and a first mud discharge valve 14 is provided at the bottom; the first flocculation sub-tank 12 is used to extend the water flow path to enhance the flocculation sedimentation effect; the sedimentation component 13 is used to flocculate and precipitate suspended matter in the raw water; the first mud discharge valve 14 is used to discharge the sludge generated by the sedimentation to the mud discharge pipe 6;

[0057] At least one integral flocculation tank 2, comprising a water inlet tank 21 and a secondary flocculation tank 22; one end of the water inlet tank 21 is connected to the water outlet, and the other end is connected to the secondary flocculation tank 22; a plurality of transverse plates 221 are arranged inside the secondary flocculation tank 22, and the secondary flocculation tank is divided into a plurality of second flocculation sub-tanks 222 by the transverse plates 221, and the adjacent second flocculation sub-tanks 222 are connected to each other; a plurality of mud discharge hoppers 2221 arranged side by side are arranged at the bottom of each of the water inlet tank 21 and the second flocculation sub-tanks 222, and a second mud discharge valve 2222 is arranged in the middle of each mud discharge hopper 2221; the integral flocculation tank 2 is arranged side by side with the grid flocculation tank 1; the water inlet tank 21 is used to introduce the water preliminarily purified by the grid flocculation tank 1, and output it to the secondary flocculation tank 22; the mud discharge hopper 2221 is used to collect the sludge downward; the second mud discharge valve 2222 is used to discharge the sludge generated by precipitation to the mud discharge pipe 6;

[0058] A plurality of small water collecting grooves 3 are locked in the secondary flocculation tank 22 by means of locking accessories (not shown), mounted on each of the horizontal plates 221, perpendicular to the horizontal plates 221, and one end of which extends out of the integral flocculation tank 2; the small water collecting grooves 3 are used to collect purified water; in specific implementation, the inclination angle of the small water collecting grooves 3 can be adjusted by means of the locking accessories to accelerate the circulation of water;

[0059] A large water collecting tank 4 is provided on the outer side wall of the integral flocculation tank 2, and is lower in height than the small water collecting tanks 3, and is used to receive the water flowing out of the small water collecting tanks 3;

[0060] Two sludge tanks 5 are symmetrically arranged on the sides of the grid flocculation tank 1 and the integral flocculation tank 2 for collecting sludge;

[0061] A plurality of mud discharge pipes 6 are arranged side by side, one end of which is connected to the corresponding first mud discharge valve 14 or second mud discharge valve 2222, and the other end extends to the mud tank 5, for discharging the mud into the mud tank 5;

[0062] A plurality of mud discharge pumps 7 are respectively connected to the ends of the mud discharge pipes 6 and are used for positively cleaning the mud in the mud discharge pipes 6;

[0063] A plurality of air pipes (not shown), respectively connected to the first mud discharge valve 14 or the second mud discharge valve 2222 for backwashing;

[0064] A plurality of water pipes (not shown) are respectively connected to the first mud discharge valve 14 or the second mud discharge valve 2222 for backwashing.

[0065] Also includes:

[0066] A mobile flushing mechanism 20 is arranged at the top of the integral flocculation tank 2 and is used for mobile spraying and flushing the mud discharge bucket 2221 .

[0067] The mobile flushing mechanism comprises:

[0068] Two guide rails (not shown) are arranged in parallel at the top of the integrated flocculation tank 2;

[0069] A cleaning rack (not shown), with two ends respectively connected in a sliding manner to one of the guide rails;

[0070] A cylinder 201, the power output end of which is connected to the cleaning rack and to the PLC8;

[0071] A plurality of cleaning nozzles (not shown) are arranged side by side on the cleaning rack, with the cleaning direction facing downward;

[0072] A cleaning pipe (not shown) is connected to each of the cleaning nozzles and is used to connect to a high-pressure water source.

[0073] The precipitation component 13 comprises:

[0074] A sedimentation rack 131, disposed in the first flocculation sub-tank 12;

[0075] A plurality of sedimentation plates 132 are obliquely disposed on the sedimentation frame 131 to effectively improve the sedimentation effect.

[0076] The bottom of the first flocculation sub-tank 12 is funnel-shaped.

[0077] The bottom of the mud discharge bucket 2221 is funnel-shaped.

[0078] The sludge discharge pipe 6 is provided with a certain inclination angle to facilitate the discharge of sludge.

[0079] The first mud discharge valve 14 and the second mud discharge valve 2222 are both solenoid valves, which are convenient for automatic control.

[0080] Also includes:

[0081] A PLC 8, connected to the first mud discharge valve 14, the second mud discharge valve 2222, the mud discharge pump 7 and the mobile flushing mechanism 20, respectively, for controlling the operation of the flocculation sedimentation tank 100;

[0082] A plurality of flow sensors 9 are respectively arranged in the first mud discharge valve 14 or the second mud discharge valve 2222 and connected to the PLC 8;

[0083] A plurality of water level sensors 10 are respectively arranged in the grid-type flocculation tank 1 and the integral flocculation tank 2 and are connected to the PLC 8 .

[0084] A preferred embodiment of a flocculation sedimentation method for deep treatment of the present invention comprises the following steps:

[0085] Step S1, the raw water to be purified flows into the first flocculation sub-tank of the grid flocculation tank from the water outlet, flows along a preset path in each first flocculation sub-tank of the grid flocculation tank, and flocculates and precipitates through the sedimentation component during the flow of the raw water, and the precipitated sludge is discharged to the sludge discharge pipe through the first sludge discharge valve;

[0086] Step S2, the water of the last first flocculation sub-tank flows into the water inlet tank of the integrated flocculation tank through the water outlet, continues to flocculate and precipitate through the mud discharge bucket of the water inlet tank, and the precipitated sludge is discharged to the mud discharge pipe through the second mud discharge valve of the water inlet tank;

[0087] Step S3, the water from the water inlet tank flows into the secondary flocculation tank, continues to flocculate and precipitate through the sludge discharge hopper of the secondary flocculation tank, and the precipitated sludge is discharged to the sludge discharge pipe through the second sludge discharge valve of the secondary flocculation tank;

[0088] Step S4, PLC collects water quality data in real time through flow sensors and water level sensors, analyzes the water quality data through big data analysis technology, and dynamically controls the operation of the sludge pump and the mobile flushing mechanism based on the analysis results to automatically discharge and clean the flocculation sedimentation tank.

[0089] In summary, the advantages of the present invention are:

[0090] 1. A first mud discharge valve is arranged at the bottom of each first flocculation sub-tank of the grid flocculation tank, and a second mud discharge valve is arranged in the middle of each mud discharge hopper of the integral flocculation tank. Each first mud discharge valve and the second mud discharge valve are connected to the sludge tank through an inclined mud discharge pipe, and the end of the mud discharge pipe is connected with a mud discharge pump. The first mud discharge valve and the second mud discharge valve are connected with an air pipe and a water pipe. The mud discharge pump can automatically clean the sludge in the mud discharge pipe, and the first mud discharge valve and the second mud discharge valve can also be backwashed through the air pipe and the water pipe. The combination of positive and negative flushing can effectively improve the cleaning quality; and a mobile flushing mechanism including a guide rail, a cleaning rack, a cylinder, a cleaning nozzle, and a cleaning pipe is arranged at the top of the integral flocculation tank. The cylinder drives the cleaning rack to move on the guide rail, and then links the cleaning nozzle to move, so that the high-pressure water connected to the cleaning pipe is sprayed through the cleaning nozzle for high pressure, and the mud discharge hopper below is automatically flushed, which ultimately greatly improves the efficiency and quality of flocculation sedimentation tank cleaning.

[0091] 2. By setting up flow sensors and water level sensors, when a large amount of sludge is generated and not cleaned in time, the flow rate will become smaller, the water level will become higher, and the water quality will deteriorate. That is, water quality data can be collected through flow sensors and water level sensors. After analyzing the water quality data through big data analysis technology, the sludge pump and the mobile flushing mechanism can be dynamically controlled based on the analysis results to automatically discharge and clean the flocculation sedimentation tank, which greatly improves the degree of automation of the flocculation sedimentation tank. Cleaning does not require manual intervention, which greatly improves the efficiency of cleaning the flocculation sedimentation tank.

[0092] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A flocculation sedimentation tank for deep treatment, characterized in that: include: At least one grid-type flocculation tank is provided with a plurality of vertical plates inside, and the grid-type flocculation tank is divided into a plurality of first flocculation sub-tanks by the vertical plates; the first flocculation sub-tanks are connected in sequence, so that the water in the first flocculation sub-tanks flows along a preset path, and the first first flocculation sub-tank is provided with a water inlet, and the last first flocculation sub-tank is provided with a water outlet; each first flocculation sub-tank is provided with a sedimentation component inside, and a first mud discharge valve is provided at the bottom; At least one integral flocculation tank, including a water inlet tank and a secondary flocculation tank; one end of the water inlet tank is connected to the water outlet, and the other end is connected to the secondary flocculation tank; a plurality of transverse plates are arranged inside the secondary flocculation tank, and the secondary flocculation tank is divided into a plurality of second flocculation sub-tanks by the transverse plates, and the adjacent second flocculation sub-tanks are connected to each other; a plurality of mud discharge hoppers arranged side by side are arranged at the bottom of each of the water inlet tank and the second flocculation sub-tank, and a second mud discharge valve is arranged in the middle of each of the mud discharge hoppers; the integral flocculation tank is arranged side by side with the grid flocculation tank; A plurality of small water collecting grooves are locked in the secondary flocculation tank by means of locking accessories, are erected on each of the horizontal plates, are perpendicular to the horizontal plates, and one end of the small water collecting grooves extends out of the integral flocculation tank; A large water collecting tank, arranged on the outer side wall of the integral flocculation tank, having a height lower than that of the small water collecting tanks, and used for receiving water flowing out of the small water collecting tanks; Two sludge tanks are symmetrically arranged on the sides of the grid-type flocculation tank and the integral flocculation tank; A plurality of mud discharge pipes are arranged side by side, one end of which is connected to the corresponding first mud discharge valve or second mud discharge valve, and the other end of which extends to the mud tank; A plurality of mud discharge pumps are respectively connected to the end of one of the mud discharge pipes; A plurality of air pipes, each of which is connected to the first mud discharge valve or the second mud discharge valve; A plurality of water pipes are respectively connected to the first mud discharge valve or the second mud discharge valve.

2. A flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: Also includes: A mobile flushing mechanism is arranged at the top of the integral flocculation tank.

3. A flocculation sedimentation tank for deep treatment as claimed in claim 2, characterized in that: The mobile flushing mechanism comprises: Two guide rails are arranged in parallel at the top of the integral flocculation tank; A cleaning rack, both ends of which are slidably connected to one of the guide rails; a cylinder, the power output end of which is connected to the cleaning rack; A plurality of cleaning nozzles are arranged side by side on the cleaning rack, with the cleaning direction facing downward; A cleaning pipe is connected to each of the cleaning nozzles.

4. A flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: The precipitation component comprises: a sedimentation rack, disposed in the first flocculation sub-tank; A plurality of sedimentation plates are arranged obliquely on the sedimentation frame.

5. The flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: The bottom of the first flocculation sub-tank is funnel-shaped.

6. A flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: The bottom of the mud discharge hopper is funnel-shaped.

7. A flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: The mud discharge pipe is provided with a certain inclination angle.

8. The flocculation sedimentation tank for deep treatment according to claim 1, characterized in that: The first mud discharge valve and the second mud discharge valve are both solenoid valves.

9. A flocculation sedimentation tank for deep treatment as claimed in claim 2, characterized in that: Also includes: a PLC, connected to the first mud discharge valve, the second mud discharge valve, the mud discharge pump and the mobile flushing mechanism respectively; A plurality of flow sensors are respectively arranged in the first mud discharge valve or the second mud discharge valve and connected to the PLC; A plurality of water level sensors are respectively arranged in the grid-type flocculation tank and the integral flocculation tank, and are connected to the PLC.

10. A flocculation and sedimentation method for deep treatment, characterized in that: The method requires the use of a flocculation sedimentation tank as described in any one of claims 1 to 9, comprising the following steps: Step S1, the raw water to be purified flows into the first flocculation sub-tank of the grid flocculation tank from the water outlet, flows along a preset path in each first flocculation sub-tank of the grid flocculation tank, and flocculates and precipitates through the sedimentation component during the flow of the raw water, and the precipitated sludge is discharged to the sludge discharge pipe through the first sludge discharge valve; Step S2, the water of the last first flocculation sub-tank flows into the water inlet tank of the integrated flocculation tank through the water outlet, continues to flocculate and precipitate through the mud discharge bucket of the water inlet tank, and the precipitated sludge is discharged to the mud discharge pipe through the second mud discharge valve of the water inlet tank; Step S3, the water from the water inlet tank flows into the secondary flocculation tank, continues to flocculate and precipitate through the sludge discharge hopper of the secondary flocculation tank, and the precipitated sludge is discharged to the sludge discharge pipe through the second sludge discharge valve of the secondary flocculation tank; Step S4, PLC collects water quality data in real time through flow sensors and water level sensors, analyzes the water quality data through big data analysis technology, and dynamically controls the operation of the sludge pump and the mobile flushing mechanism based on the analysis results to automatically discharge and clean the flocculation sedimentation tank.

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