CN115738401A - High-density clarification tank with strong circulation and clarification method thereof - Google Patents

Abstract

The invention discloses a high-density clarification tank with strong circulation and a clarification method thereof, relates to the technical field of clarification tanks, and aims to solve the problems that when sludge is regularly and quantitatively discharged, the conventional clarification tank only can ensure thorough sludge discharge but cannot ensure the cleanliness of upper clear water, and the discharged sludge cannot be dried at the first time. The sewage treatment device comprises a main tank body, wherein a clear water treatment tank and a sludge drying tank are arranged on one side of the main tank body, a sludge discharge seat is arranged at the bottom of the main tank body, a primary sludge discharge pipe is arranged at one end of the sludge discharge seat, the primary sludge discharge pipe and the sludge discharge seat are communicated with the inside of the main tank body, a raw water inlet pipe, a clear water outlet pipe and a secondary sedimentation discharge pipe are respectively arranged on the outer walls of two sides of the main tank body, and the raw water inlet pipe, the clear water outlet pipe and the secondary sedimentation discharge pipe are communicated with the inside of the main tank body; further comprising: and the lining frame is arranged inside the main tank body, and a raw water circulation port and a sludge backflow port are arranged on the outer wall of the lining frame.

Description

A high-density clarification tank with strong circulation and its clarification method

technical field

The invention relates to the technical field of clarification tanks, in particular to a high-density clarification tank with strong circulation and a clarification method thereof.

Background technique

The clarifier is a device for coagulating water and removing suspended solids and colloids in the water. The medium used to intercept and separate impurity particles in the clarifier is suspended sludge. The coagulation treatment process for water and wastewater includes water and chemicals. There are three stages of mixing, reaction and separation of flocs and water. The clarifier is a special equipment that completes the above three processes in one.

For example, the announcement number is: CN214936673U (named a clarifier for forced sludge circulation), which includes a clarifier unit and a sludge return discharge unit. area, sludge area, sampling device, first anti-blocking, second anti-extended skirt and diversion device; there is a stirring device in the center of the pool body, and there is an anti-area outside the stirring device, and a second anti-area outside the first anti-area. There is a clear water area outside the second anti-area, and a sludge area under the second anti-area. The sludge return discharge unit includes an activated sludge collection device, a sludge mechanical quantitative lifting device, a return sludge feeding device, and an excess sludge removal device. And aging excess sludge collection device.

When the above-mentioned clarifier discharges sludge regularly and quantitatively, it can only ensure complete sludge discharge, but it cannot ensure the cleanliness of the upper clear water, and the discharged sludge cannot be dried immediately. For this reason, we provide a strong circulation High-density clarifier and its clarification method.

Contents of the invention

The purpose of the present invention is to provide a high-density clarifier with strong circulation and its clarification method, to solve the problem that the existing clarifier proposed in the background technology can only ensure complete sludge discharge when the sludge is discharged regularly and quantitatively. , but the cleanliness of the upper layer of water cannot be guaranteed, and the discharged mud cannot be dried immediately.

In order to achieve the above object, the present invention provides the following technical solutions: a high-density clarification tank with strong circulation and its clarification method, including a main tank body, one side of the main tank body is provided with a clear water treatment tank and a sludge drying tank, The bottom of the main tank body is provided with a sludge discharge seat, and one end of the sludge discharge seat is provided with a first-level sludge discharge pipe. Raw water inlet pipe, clear water outlet pipe and secondary sediment discharge pipe are respectively arranged on the outer walls of both sides of the tank, and the raw water inlet pipe, clean water outlet pipe and secondary sediment discharge pipe are all connected to the interior of the main tank body;

Also includes:

The lining frame is arranged inside the main pool body, and the outer wall of the lining frame is provided with a raw water circulation port and a sludge return port, and the raw water circulation port and the sludge return port are integrally formed with the lining frame, A mixer is arranged at the inner center of the lining frame;

The clean water downflow pipe is arranged at one end of the clean water outlet pipe, and the outer wall of the clean water downflow pipe is provided with an outer edge pipe frame. There is a water wheel, and a hydroelectric generator is arranged outside the outer edge of the pipe frame. A rectifier is arranged on one side of the outer wall of the hydroelectric generator, and the output end of the hydroelectric generator is electrically connected to the input end of the rectifier;

A distribution box, which is arranged on one side of the outer wall of the sludge drying tank, and an electric heating interlayer is arranged inside the sludge drying tank, the output end of the distribution box is electrically connected to the input end of the electric heating interlayer, and the electric heating The upper end of the interlayer is equipped with a heat conduction plate, and the top of the sludge drying tank is equipped with a transparent film cover;

The end pipe is installed at one end of the clear water downflow pipe, the end pipe and the clean water downflow pipe are sealed and connected by a flange, and a flow meter is installed on the end pipe, and a micrometer is installed at one end of the end pipe. Porous grid net, microporous grid net and terminal tube are integrally formed.

Preferably, the raw water inlet pipe, the clear water outlet pipe, the primary sludge discharge pipe and the secondary sedimentation discharge pipe are respectively provided with a diversion water pump and a sludge pump, and the diversion water pump and the sludge pump are respectively connected to the raw water inlet pipe, The flanges of the clean water outlet pipe, the primary sludge discharge pipe and the secondary sedimentation discharge pipe are sealed and installed.

Preferably, a transmission shaft is provided at the center of one end of the water wheel, and the transmission shaft is integrated with the water wheel. The transmission shaft is connected to the input shaft of the hydroelectric generator through a coupling, and the output of the rectifier A power supply connection is arranged on the end, and the other end of the power supply connection is electrically connected with the distribution box.

Preferably, a sludge drop opening is provided on the top of the sludge discharge seat, and the sludge drop opening is provided in communication with the inside of the main tank body, and a drive motor is provided outside the sludge discharge seat.

Preferably, a stirring shaft is arranged below the sludge drop port, and the output end of the driving motor is connected to the stirring shaft through a coupling mechanism. The outer wall of the stirring shaft is provided with a sludge pushing leaf, and the sludge pushing leaf is connected to the stirring shaft. The stirring shaft is integrally formed.

Preferably, the top of the main pool body is provided with a central circular seat, and the top of the central circular seat is provided with a servo motor, and the output end of the servo motor is connected to the extended shaft of the mixer through a coupling mechanism.

Preferably, reinforcing connecting rods are provided on the outer walls around the central circular seat, and the two ends of the reinforcing connecting rods are respectively welded to the outer wall of the central circular seat and the inner wall of the main pool body.

Preferably, a drying outlet is provided on the outer wall of the sludge drying tank, and the drying outlet is connected to the interior of the sludge drying tank, and a plugging cover is installed on one side of the drying outlet. The plugging cover is connected with the mechanical seal of the drying outlet.

Preferably, a dosing device is provided on both sides of the mixer, and the dosing port of the dosing device is located inside the lining frame.

Preferably, the clarification method of a described high-density clarification tank with strong circulation comprises the following steps:

Step 1: Inject the raw sewage liquid that needs to be treated into the inside of the main pool body through the raw water inlet pipe, then enter the center of the main pool body through the raw water flow port, and then add the raw sewage liquid inside the main pool body through the dosing device Flocculant, and turn on the servo motor to drive the mixer to rotate, so that the mixer can fully mix the flocculant and sewage liquid;

Step 2: After the sewage stock solution is coagulated, the sludge in the water will flocculate and settle, and fall into the bottom of the main tank, and the flocs suspended in the upper layer will flow back to the center of the bottom of the main tank through the sludge return port to remove the sludge. The muddy water is placed above the main pool body;

Step 3: Simultaneously open the clean water outlet pipe and the two sludge pumps, so that the sludge pump injects the settled sludge into the sludge drying tank through the first-stage sludge discharge pipe. In order to avoid blockage during the sludge discharge, The drive motor drives the stirring shaft to rotate, so that the sludge pushing blade pushes the sludge downward and discharges it, and the secondary sedimentation pipe discharges the impurity flocs in the upper layer of the sludge;

Step 4: When the clean water is pumped out, it flows into the clean water treatment tank through the clean water downflow pipe, and the clean water flows downward inside the clean water downflow pipe, driving the water wheel inside the outer pipe frame to rotate. When the water wheel rotates, it drives the hydroelectric generator to generate electricity Work;

Step 5: After the electric energy generated by the hydroelectric generator is processed by the rectifier, the electric energy is transmitted to the distribution box by means of the connected power supply wiring, and the distribution box transmits the electric energy to the electric heating interlayer. The heat conduction heats and dries the sludge. Due to the shielding of the transparent film cover, the heat of the light can be enhanced to dry the sludge in sunny weather;

Step 6: The clean water flows into the clean water treatment tank after being filtered by the microporous grid inside the end pipe, and the trace impurities filtered in the clean water are suppressed inside the end pipe. When the flow value of the flowmeter drops significantly, it means The inside of the end pipe is blocked a lot. At this time, the flange connection position between the end pipe and the clean water downflow pipe can be removed, and the end pipe can be cleaned and dredged.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention injects into the interior of the sludge drying tank through the first-level sludge discharge pipe. In order to avoid clogging during the sludge discharge process, the drive motor drives the agitation shaft to rotate, so that the sludge push blade pushes the sludge downward and discharges it. The second-stage sedimentation pipe discharges the impurity flocs in the upper layer of the sludge. After the electric energy generated by the hydroelectric generator is processed by the rectifier, the electric energy is transmitted to the distribution box with the help of the connected power supply wiring, and the distribution box transmits the electric energy to the electric heater. The interlayer, the electrothermal interlayer releases heat after being energized, and heats and dries the sludge through the heat conduction of the heat conduction plate. Due to the cover of the transparent film cover, the heat of the light can be enhanced to dry the sludge in sunny weather, achieving energy-saving drying. The purpose of deslagging overcomes the problem that the existing clarifiers can only ensure complete sludge discharge when the sludge is regularly and quantitatively discharged, but cannot ensure the cleanliness of the upper layer of water, and the discharged sludge cannot be dried immediately question.

2. After the clean water is filtered through the microporous grid inside the end pipe, it flows into the clean water treatment tank, and the trace impurities filtered in the clean water are suppressed inside the end pipe. When the flow value of the flowmeter drops significantly, it means The inside of the end pipe is blocked in a large amount. At this time, the flange connection position between the end pipe and the clean water downflow pipe can be removed to further improve the cleanliness of the clean water and facilitate dredging.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the clarifier with strong circulation of the present invention;

Fig. 2 is a schematic diagram of the structure of the main pool body of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the sludge discharge seat of the present invention;

Fig. 4 is a schematic structural view of the sludge drying tank of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the outer edge pipe frame of the present invention;

Fig. 6 is a schematic diagram of the connection structure between the end pipe and the clear water downflow pipe of the present invention;

In the figure: 1. Main tank body; 2. Raw water inlet pipe; 3. Clear water outlet pipe; 4. Sludge discharge seat; ; 8. Servo motor; 9. Mixer; 10. Dosing device; 11. Raw water flow port; 12. Sludge return port; 13. Clean water downflow pipe; Clear water treatment tank; 17, sludge drying tank; 18, transparent film cover; 19, center round seat; 20, reinforced connecting rod; 21, diversion pump; 22, sludge pump; 23, drive motor; 24, sewage Mud drop opening; 25. Stirring shaft; 26. Sludge pushing leaf; 27. Distribution box; 28. Electric heating interlayer; 29. Heat conduction plate; 30. Drying outlet; 31. Blocking cover; ; 33, rectifier; 34, transmission shaft; 35, power supply wiring; 36, end tube; 37, flow meter; 38, microporous grid.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them.

Please refer to Fig. 1-6, a kind of embodiment that the present invention provides: a kind of high-density clarification pond with strong circulation, comprises main pond body 1, and one side of main pond body 1 is provided with clean water treatment pond 16 and sludge dry In the chemical tank 17, the bottom of the main pool body 1 is provided with a sludge discharge seat 4, and one end of the sludge discharge seat 4 is provided with a first-level sludge discharge pipe 5, and the first-stage sludge discharge pipe 5 and the sludge discharge seat 4 are all connected to the main tank body. The internal connection of the pool body 1 is set, and the outer walls on both sides of the main pool body 1 are respectively provided with a raw water inlet pipe 2, a clean water outlet pipe 3 and a secondary sedimentation discharge pipe 6, and a raw water inlet pipe 2, a clean water outlet pipe 3 and a secondary sedimentation pipe. The row pipes 6 are all communicated with the interior of the main pool body 1;

Also includes:

Liner frame 7, it is arranged on the inside of main pool body 1, and the outer wall of liner frame 7 is provided with raw water circulation port 11 and sludge return port 12, and raw water circulation port 11 and sludge return port 12 are all connected with lining The frame 7 is integrally formed, and the inner center of the lining frame 7 is provided with a mixer 9;

The clean water downflow pipe 13 is arranged at one end of the clean water outlet pipe 3, and the outer wall of the clean water downflow pipe 13 is provided with an outer edge pipe frame 14, and the outer edge pipe frame 14 is integrally formed with the clean water downflow pipe 13. The inside of the frame 14 is provided with a water wheel 15, and the outside of the pipe frame 14 is provided with a hydroelectric generator 32, and a rectifier 33 is arranged on one side of the hydroelectric generator 32, and the output terminal of the hydroelectric generator 32 is connected to the input of the rectifier 33. terminal electrical connection;

The distribution box 27 is arranged on the outer wall of one side of the sludge drying tank 17, and the inside of the sludge drying tank 17 is provided with an electric heating interlayer 28, and the output end of the distribution box 27 is connected to the input end of the electric heating interlayer 28. Sexual connection, the upper end of the electric heating interlayer 28 is provided with a heat conducting plate 29, and the top of the sludge drying tank 17 is provided with a transparent film cover 18;

End position pipe 36, which is installed on one end of clean water downflow pipe 13, end position pipe 36 is connected with clean water downflow pipe 13 through flange sealing, and flow meter 37 is installed on end position pipe 36, one end of end position pipe 36 A microporous grid net 38 is arranged on the position, and the microporous grid net 38 and the end tube 36 are formed integrally.

When in use, it is injected into the interior of the sludge drying tank through the first-stage sludge discharge pipe. In order to avoid clogging during the sludge discharge process, the drive motor drives the stirring shaft to rotate, so that the sludge pushing blades push the sludge downward and discharge it, while the second The first-level sedimentation pipe discharges the impurity flocs in the upper layer of the sludge. After the electric energy generated by the hydroelectric generator is processed by the rectifier, the electric energy is transmitted to the distribution box by means of the connected power supply wiring, and the distribution box transmits the electric energy to the electric heating interlayer. , the electric heating interlayer releases heat after being energized, and the sludge is heated and dried through the heat conduction of the heat conduction plate. Due to the shielding of the transparent film cover, the heat of the light can be enhanced to dry the sludge in sunny weather, achieving energy-saving drying. purpose of sludge.

Please refer to Fig. 2, the raw water inlet pipe 2, the clear water outlet pipe 3, the primary sludge discharge pipe 5 and the secondary sedimentation discharge pipe 6 are respectively provided with a diversion water pump 21 and a sludge pump 22, and the diversion water pump 21 and sludge The pump 22 is respectively connected to the raw water inlet pipe 2, the clean water outlet pipe 3, the primary sludge discharge pipe 5, and the secondary sedimentation discharge pipe 6. The diversion water pump 21 and the sludge pump 22 respectively arranged on the secondary sedimentation pipe 6 play the role of transporting water and sludge.

Please refer to Fig. 5, a transmission connecting shaft 34 is arranged at the central position of one end of the water wheel 15, and the driving connecting shaft 34 is integrated with the water wheel 15, and the driving connecting shaft 34 is connected to the input shaft of the hydroelectric generator 32 through a coupling , the output end of the rectifier 33 is provided with a power supply connection 35, the other end of the power supply connection 35 is electrically connected with the distribution box 27, and the transmission connecting shaft 34 provided at the center position of one end of the water wheel 15 serves as the transmission hydraulic generator 32. effect.

Referring to Fig. 3, the top of the sludge discharge seat 4 is provided with a sludge drop port 24, and the sludge drop port 24 is communicated with the inside of the main tank body 1, and the outside of the sludge discharge seat 4 is provided with a drive motor 23, and the sludge The sludge drop opening 24 provided on the top of the discharge seat 4 plays a role in facilitating downward discharge of sludge.

Please refer to Fig. 3, the below of sludge falling port 24 is provided with agitating shaft 25, the output end of drive motor 23 is connected with agitating shaft 25 transmission by shaft coupling mechanism, and the outer wall of agitating shaft 25 is provided with sludge pushing vane 26, sludge The mud pushing blade 26 is integrally formed with the stirring shaft 25, and the stirring shaft 25 arranged below the sludge drop port 24 plays a role in driving the sludge pushing blade 26 to rotate.

Please refer to Figure 2, the top of the main pool body 1 is provided with a central circular seat 19, and the top of the central circular seat 19 is provided with a servo motor 8, and the output end of the servo motor 8 is connected to the extension shaft of the mixer 9 through a coupling mechanism. , the central circular seat 19 provided on the top of the main pool body 1 plays the role of carrying the servo motor 8 .

Please refer to Fig. 2, the outer walls around the central round seat 19 are provided with reinforcing connecting rods 20, and the two ends of the reinforcing connecting rods 20 are respectively welded to the outer wall of the central round seat 19 and the inner wall of the main pool body 1, and the central round seat 19 The strengthening connecting rod 20 that all is provided with on the outer wall of four weeks plays the effect of strengthening and connecting the central round seat 19.

Please refer to Fig. 4, the outer wall of the sludge drying tank 17 is provided with a drying outlet 30, the drying outlet 30 is connected with the inside of the sludge drying tank 17, and a seal is installed on one side of the drying outlet 30. The plugging cover 31 is mechanically sealed and connected to the drying outlet 30, and the drying outlet 30 provided on the outer wall of the sludge drying tank 17 plays a role in discharging the dried sludge.

Please refer to the figure, the two sides of the mixer 9 are respectively provided with a dosing device 10, the dosing port of the dosing device 10 is located inside the lining frame 7, and the dosing devices respectively arranged on the two sides of the mixer 9 10 plays the role of adding flocculation medicine.

Please refer to Figure 1-6, a clarification method of a high-density clarification tank with strong circulation, including the following steps:

Step 1: inject the raw sewage liquid that needs to be treated into the inside of the main pool body 1 through the raw water inlet pipe 2, and then enter the center of the main pool body 1 through the raw water flow port 11, and then pass the dosing device 10 to the main pool body 1 Add flocculant to the internal sewage stock solution, and turn on the servo motor 8 to drive the mixer 9 to rotate, so that the mixer 9 can fully mix the flocculant and the sewage stock solution;

Step 2: After the raw sewage liquid is coagulated, the sludge in the water will flocculate and settle, and fall into the bottom of the main tank body 1, and the flocs suspended in the upper layer will flow back to the center of the bottom of the main tank body 1 through the sludge return port 12 , the clear water for removing sludge is placed above the main pool body 1;

Step 3: Simultaneously open the clean water outlet pipe 3 and the two sludge pumps 22, so that the sludge pump 22 injects the settled sludge into the interior of the sludge drying tank 17 through the primary sludge discharge pipe 5, and the process of sludge discharge In order to avoid clogging, the driving motor 23 drives the stirring shaft 25 to rotate, so that the sludge pushing blade 26 pushes the sludge downward and discharges it, and the secondary sedimentation pipe 6 discharges the impurity flocs in the upper layer of the sludge;

Step 4: When the clean water is drawn out, it flows into the clean water treatment tank 16 through the clean water downflow pipe 13, and the clean water flows downward inside the clean water downflow pipe 13, driving the water wheel 15 inside the outer pipe frame 14 to rotate. When the water wheel 15 rotates Drive the hydroelectric generator 32 to generate electricity;

Step 5: After the electric energy generated by the hydroelectric generator 32 is processed by the rectifier 33, the electric energy is transmitted to the distribution box 27 by means of the connected power supply wiring 35, and the distribution box 27 transmits the electric energy to the electric heating interlayer 28. After the electric heating interlayer 28 is energized Heat release, the sludge is heated and dried through the heat conduction of the heat conducting plate 29, and due to the shielding of the transparent film cover 18, the heat of the light can be enhanced to dry the sludge in sunny weather;

Step 6: Clean water flows into the inside of the clean water treatment tank 16 after being filtered by the microporous grid net 38 inside the end pipe 36, and the trace impurities filtered in the clean water are suppressed inside the end pipe 36, when the flow value of the flow meter 37 When it is greatly reduced, it means that the inside of the end pipe 36 is blocked a lot. At this time, the flange connection position between the end pipe 36 and the clean water downflow pipe 13 can be removed, and the end pipe 36 can be cleaned and dredged.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A high-density clarifier with strong circulation, comprising a main tank body (1), one side of the main tank body (1) is provided with a clear water treatment tank (16) and a sludge drying tank (17), the main tank The bottom of the body (1) is provided with a sludge discharge seat (4), and one end of the sludge discharge seat (4) is provided with a primary sludge discharge pipe (5), a primary sludge discharge pipe (5) and a sludge discharge seat (4) are all connected to the interior of the main pool body (1), and the outer walls on both sides of the main pool body (1) are respectively provided with raw water inlet pipes (2), clear water outlet pipes (3) and secondary sedimentation pipes ( 6), the raw water inlet pipe (2), the clear water outlet pipe (3) and the secondary sediment discharge pipe (6) are all connected to the interior of the main tank body (1); It is characterized in that: it also includes: The lining frame (7), which is arranged inside the main pool body (1), and the outer wall of the lining frame (7) is provided with a raw water circulation port (11) and a sludge return port (12), the raw water circulation Both the port (11) and the sludge return port (12) are integrally formed with the lining frame (7), and a mixer (9) is arranged at the inner center of the lining frame (7); The clean water downflow pipe (13), which is arranged at one end of the clean water outlet pipe (3), and the outer wall of the clean water downflow pipe (13) is provided with an outer edge pipe frame (14), and the outer edge pipe frame (14) It is integrally formed with the clear water downflow pipe (13), and the inside of the outer edge pipe frame (14) is provided with a water wheel (15), and the outside of the outer edge pipe frame (14) is provided with a hydraulic generator (32), and the hydraulic generator ( A rectifier (33) is provided on one side of the outer wall of 32), and the output end of the hydroelectric generator (32) is electrically connected to the input end of the rectifier (33); A distribution box (27), which is arranged on the outer wall of one side of the sludge drying tank (17), and the inside of the sludge drying tank (17) is provided with an electric heating interlayer (28), and the distribution box (27 ) is electrically connected to the input end of the electrothermal interlayer (28), the upper end of the electrothermal interlayer (28) is provided with a heat conduction plate (29), and the top of the sludge drying tank (17) is equipped with a transparent film cover (18) ; An end pipe (36), which is installed at one end of the clean water downflow pipe (13), the end pipe (36) is connected to the clean water downflow pipe (13) through a flange seal, and the end pipe (36) is A flow meter (37) is installed, and a microporous grid (38) is arranged on one end of the end pipe (36), and the microporous grid (38) is integrated with the end pipe (36). 2. A high-density clarifier with strong circulation according to claim 1, characterized in that: said raw water inlet pipe (2), clear water outlet pipe (3), primary sludge discharge pipe (5) and A diversion water pump (21) and a sludge pump (22) are arranged on the secondary sedimentation pipe (6) respectively, and the diversion water pump (21) and the sludge pump (22) are connected to the raw water inlet pipe (2) and the clean water outlet respectively. Pipe (3), primary sludge discharge pipe (5) and secondary sedimentation discharge pipe (6) are flange-tightly installed. 3. A high-density clarification tank with strong circulation according to claim 2, characterized in that: a transmission shaft (34) is arranged at the center of one end of the water wheel (15), and the transmission shaft (34 ) and the water wheel (15) are integrally formed, the transmission connecting shaft (34) is connected to the input shaft of the hydroelectric generator (32) through a coupling, and the output end of the rectifier (33) is provided with a power supply connection (35 ), the other end of the power supply wiring (35) is electrically connected with the distribution box (27). 4. The high-density clarifier with strong circulation according to claim 3 is characterized in that: the top of the sludge discharge seat (4) is provided with a sludge drop port (24), and the sludge drop port ( 24) It is arranged in communication with the inside of the main pool body (1), and the outside of the sludge discharge seat (4) is provided with a drive motor (23). 5. A high-density clarifier with strong circulation according to claim 4, characterized in that: a stirring shaft (25) is arranged below the sludge drop opening (24), and the output of the drive motor (23) The end is connected to the stirring shaft (25) through a coupling mechanism, and the outer wall of the stirring shaft (25) is provided with a sludge pushing blade (26), and the sludge pushing blade (26) is integrally formed with the stirring shaft (25). . 6. A high-density clarification tank with strong circulation according to claim 5, characterized in that: the top of the main tank body (1) is provided with a central round seat (19), and the central round seat (19 ) is provided with a servomotor (8), and the output end of the servomotor (8) is connected with the extension shaft transmission of the mixer (9) through a shaft coupling mechanism. 7. A high-density clarification tank with strong circulation according to claim 6, characterized in that: reinforcement connecting rods (20) are arranged on the surrounding outer walls of the central round seat (19), and the reinforcement connecting rods ( The two ends of 20) are respectively welded with the outer wall of the central round seat (19) and the inner wall of the main pool body (1). 8. A high-density clarifier with strong circulation according to claim 7, characterized in that: the outer wall of the sludge drying tank (17) is provided with a drying outlet (30), and the drying outlet The port (30) is communicated with the inside of the sludge drying tank (17), and a plugging cover (31) is installed on one side of the drying outlet (30), and the plugging cover (31) and the drying outlet (30) Mechanical seal connection. 9. A kind of high-density clarification tank with strong circulation according to claim 8, characterized in that: the two sides of the mixer (9) are respectively provided with dosing devices (10), and the dosing devices ( 10) The dosing port is located inside the lining frame (7). 10. the clarification method of a kind of strong circulation high-density clarification tank according to claim 9, is characterized in that, comprises the following steps: Step 1: Inject the raw sewage liquid that needs to be treated into the inside of the main pool body (1) through the raw water inlet pipe (2), then enter the center of the main pool body (1) through the raw water flow port (11), and then pass the The drug device (10) adds flocculant to the sewage stock solution inside the main tank body (1), and turns on the servo motor (8) to drive the mixer (9) to rotate, so that the mixer (9) fully stirs the flocculant and the sewage stock solution mix; Step 2: After the raw sewage liquid is coagulated, the sludge in the water will flocculate and settle and fall into the bottom of the main tank body (1), and the flocs suspended in the upper layer will flow back to the main tank body (1) through the sludge return port (12) ) at the center of the bottom, and the clear water for removing sludge is placed above the main pool body (1); Step 3: Simultaneously open the clean water outlet pipe (3) and the two sludge pumps (22), so that the sludge pump (22) injects the settled sludge into the sludge drying tank ( 17), in order to avoid clogging during the sludge discharge process, the drive motor (23) drives the stirring shaft (25) to rotate, so that the sludge pushing blade (26) pushes the sludge downward and discharges it, while the secondary sedimentation pipe ( 6) Discharging the impurity flocs in the upper layer of the sludge; Step 4: When the clean water is pumped out, it flows into the clean water treatment tank (16) through the clean water downflow pipe (13), and the clean water flows downward inside the clean water downflow pipe (13), driving the water wheel inside the outer pipe frame (14) (15) rotate, drive hydroelectric generator (32) to carry out power generation work when water wheel (15) rotates; Step 5: After the electric energy generated by the hydroelectric generator (32) is processed by the rectifier (33), the electric energy is transmitted to the distribution box (27) by means of the connected power supply wiring (35), and the distribution box (27) transmits the electric energy Give the electrothermal interlayer (28), heat release after the electrothermal interlayer (28) is energized, the sludge is heated and dried through the heat conduction of the heat conduction plate (29), and due to the shielding of the transparent film cover (18), it can be used in sunny weather The heat of enhanced light dries the sludge; Step 6: Clean water flows into the inside of the clean water treatment tank (16) after filtering through the microporous grid (38) inside the end pipe (36), and the trace impurities filtered in the clean water are suppressed inside the end pipe (36) , when the flow value of the flowmeter (37) drops significantly, it means that the inside of the end pipe (36) is blocked a lot. down, and clean and dredge the end pipe (36).

Images