A wastewater clarifier

Abstract

This invention relates to the field of wastewater treatment technology and provides a wastewater clarifier, including a clarifier tank. The clarifier tank is divided into a sludge thickening zone, a multi-stage settling zone, a dynamic flocculation zone, and a clear water collection zone from bottom to top. A wastewater inlet pipe is provided on one side of the clarifier tank, located next to the dynamic flocculation zone, and a clear water outlet pipe is provided on the top of the other side. A sludge discharge pipe is provided at the center of the bottom. A rotary flocculation mixing component is provided in the dynamic flocculation zone. An inclined settling component and a self-cleaning anti-scaling component are provided in the multi-stage settling zone. A sludge thickening and reflux component is provided in the sludge thickening zone, and an annular water collection component is provided in the clear water collection zone. A drive component is provided at the top of the clarifier tank. The output end of the drive component extends into the interior of the clarifier tank and is connected to the rotary flocculation mixing component and the self-cleaning anti-scaling component. The treatment efficiency is significantly higher, and the equipment footprint is reduced by more than 40% compared to traditional equipment.

Description

Technical Field

[0001] This invention is a wastewater clarifier, belonging to the field of wastewater treatment technology. Background Technology

[0002] Wastewater clarification is the core pretreatment step in wastewater treatment. Its purpose is to separate suspended particles, colloids and other impurities in wastewater through physical sedimentation or chemical flocculation, so as to provide qualified water quality for subsequent advanced treatment.

[0003] Traditional clarifiers often employ static flocculation tank designs, resulting in uneven mixing of flocculant and wastewater. The resulting flocs are small and loose, with slow settling speeds, leading to large equipment footprints and low treatment efficiency. Furthermore, relying solely on a single gravity settling zone allows suspended particles to easily float to the surface or overflow, resulting in high turbidity in the effluent, making it difficult to meet subsequent treatment requirements. Additionally, sludge and scale layers easily adhere to the surface of the settling zone tank walls, necessitating periodic shutdowns for manual cleaning, which increases maintenance costs and cleaning difficulty. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a wastewater clarifier.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A wastewater clarifier includes a clarification tank, which is divided into a sludge thickening zone, a multi-stage settling zone, a dynamic flocculation zone, and a clear water collection zone from bottom to top. A wastewater inlet pipe is located on one side of the clarification tank next to the dynamic flocculation zone, a clear water outlet pipe is located at the top of the other side, and a sludge discharge pipe is located at the center of the bottom. A rotary flocculation mixing component is located in the dynamic flocculation zone; an inclined settling component and a self-cleaning anti-scaling component are located in the multi-stage settling zone; a sludge thickening and reflux component is located in the sludge thickening zone; and an annular water collection component is located in the clear water collection zone. A drive component is located at the top of the clarification tank, with its output end extending into the clarification tank and connected to the rotary flocculation mixing component and the self-cleaning anti-scaling component. A reagent dosing system and a central control module are located on the outside of the clarification tank, and the reagent dosing system, drive component, and sludge thickening and reflux component are all electrically connected to the central control module.

[0006] Furthermore, the driving component includes a housing, which is fixedly installed at the top center of the clarification tank. A motor is located at the center of one side inside the housing, and the output end of the motor is connected to a shaft. A gear three is located on the side of the shaft away from the motor. Gear one and gear two, which mesh with gear three, are located above and below gear three on the side away from the motor, respectively. A drive main shaft is located at the bottom center of gear two, and the drive main shaft passes through the housing, the clarification tank, and is mechanically linked to the rotary flocculation mixing component. A drive secondary shaft is located at the bottom center of gear one, and the drive secondary shaft passes through the drive main shaft and is mechanically linked to the rotary flocculation mixing component.

[0007] Furthermore, a gear shaft is provided at the top center of the gear one, and the top of the gear shaft is movably connected to the top wall of the housing. An upper column is sleeved on the gear shaft one. A lower column is sleeved on the drive shaft at the bottom of the housing. A frame is provided between the lower column and the side of the upper column. A middle column is provided at the center of the frame away from the inner wall of the housing. The middle column is located between the gear one and the gear two. A gear shaft three is inserted through the middle of the middle column. One end of the gear shaft three is connected to the side of the gear three. An L-shaped frame is provided at the bottom of the motor. The end of the L-shaped frame away from the motor is fixed to the side of the lower column.

[0008] Furthermore, the rotary flocculation mixing assembly includes a dispersing blade sleeved on the drive main shaft, a mixing blade below the dispersing blade, the mixing blade sleeved on the bottom of the drive secondary shaft, a drive auxiliary shaft at the center of the bottom plate of the mixing blade, a flocculation blade sleeved on the upper part of the drive auxiliary shaft, and the lower part of the drive auxiliary shaft mechanically linked with the self-cleaning anti-scaling assembly.

[0009] Furthermore, the dispersing blade has a serrated structure for rapidly dispersing and mixing wastewater and flocculant; the mixing blade has a spiral structure for achieving deep mixing of flocculant and wastewater; and the flocculation blade has an arc-shaped structure to promote the aggregation of fine flocs into large-particle-size dense flocs.

[0010] Furthermore, the inner wall of the dynamic flocculation zone is provided with several turbulence-inducing ribs.

[0011] Furthermore, the inclined settling assembly includes three inclined settling plates arranged sequentially from top to bottom, with the inclination angle of the settling plates increasing sequentially from top to bottom, and the spacing between adjacent settling plates gradually increasing from bottom to top; the surface of the settling plates is provided with a nano-hydrophobic coating; a sludge collection trough is provided below the settling plates, and a sludge guide pipe is provided at the bottom of the sludge collection trough, with the lower part of the sludge guide pipe extending downward at an inclination to the sludge concentration zone.

[0012] Furthermore, the self-cleaning anti-scaling component includes an annular cleaning frame, a cleaning disc at the bottom of the annular cleaning frame, a hollow column at the bottom of the cleaning disc, an inner cylinder at the center of the hollow column, three gears corresponding to the three-stage settling plates fitted on the inner cylinder, bevel gears meshing on the corresponding sides of the gears, an inclined support rod at the center of the bottom of the bevel gears, the support rod penetrating the bottom of the hollow column, a connecting column at the bottom of the support rod, a support rod 2 at the bottom of the connecting column, a bottom groove at the bottom of the support rod 2, an elastic cleaning brush in the bottom groove, the elastic cleaning brush being in contact with the top surface of the settling plate; a drive rod 1 at the bottom of the cleaning disc on the corresponding sides away from the support rod 1, a lower groove 1 at the bottom of the drive rod 1, an inclined drive rod 2 in the lower groove 1, a lower groove 2 on the side of the drive rod 2 away from the drive rod 1, a scraper in the lower groove 2; the scraper is composed of an upper plate, a corrugated plate and a lower plate integrally formed, the outer side of the scraper contacting the inner wall of the clarification tank.

[0013] Furthermore, the sludge thickening and reflux assembly includes a thickening cone, which is fixed at the bottom of the sludge thickening zone and connected to the bottom of the sludge discharge pipe; a spiral thickening paddle is provided inside the thickening cone and is fixedly connected to the bottom of the drive auxiliary shaft; a reflux pipe is provided in the middle of the side of the thickening cone, and the other end of the reflux pipe extends through the clarification tank to the bottom of the side of the dynamic flocculation zone, and a flow regulating valve is provided on the reflux pipe.

[0014] Furthermore, the annular water collection assembly includes an annular water collection trough, which is fixed inside the clean water collection area. The inner side of the annular water collection trough is provided with a sandwich layer, and a number of flow guide filter plates are provided inside the sandwich layer. The inner wall of the sandwich layer is provided with a number of evenly distributed water collection holes. The outer side of the annular water collection trough is connected to the clean water outlet pipe. A baffle plate is provided below the annular water collection trough.

[0015] Furthermore, the reagent dosing system includes a flocculant storage tank and a coagulant aid storage tank. The flocculant storage tank and the coagulant aid storage tank are connected to the wastewater inlet pipe via a metering pump, and the metering pump is electrically connected to the central control module.

[0016] The beneficial effects of this invention are: Through the dynamic flocculation design of the three-layer graded blades, the wastewater and the reagent are mixed efficiently, the floc particle size is increased, the floc settling speed is increased by 3 to 5 times, the treatment efficiency is significantly higher, and the equipment footprint is reduced by more than 40% compared with traditional equipment.

[0017] By employing a three-stage stepped settling plate, with each settling plate having a different inclination angle and gradually increasing spacing between adjacent plates, graded interception and progressively dense settling are achieved, resulting in deep solid-liquid separation and stable effluent turbidity.

[0018] With its self-cleaning and anti-scaling components, the rotary self-cleaning component enables cleaning while running, cleaning the sludge and scale layer on the settling plate and the inner wall of the tank in real time, achieving online self-cleaning without stopping the machine and reducing maintenance costs.

[0019] By utilizing the structure of the spiral thickener and return pipe, the sludge concentration is greatly increased compared to the traditional method, eliminating the need for additional sludge thickening equipment and significantly reducing sludge disposal costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a general exterior elevation view of a wastewater clarifier according to the present invention; Figure 2 This is a schematic diagram of the overall internal structure of a wastewater clarifier according to the present invention; Figure 3 This is a schematic diagram of the overall structure of a wastewater clarifier according to the present invention; Figure 4 This is a schematic diagram of the connection structure between the drive component and the rotary flocculation mixing assembly of a wastewater clarifier according to the present invention; Figure 5 This is a schematic diagram of the inclined sedimentation component structure of a wastewater clarifier according to the present invention; Figure 6 This is a schematic diagram of the structure of a self-cleaning and anti-scaling component of a wastewater clarifier according to the present invention; Figure 7 This is a schematic diagram of the connection structure of an elastic cleaning brush in a wastewater clarifier according to the present invention; Figure 8 This is a schematic diagram of the sludge thickening and recirculation component structure of a wastewater clarifier according to the present invention; Figure 9 This is a schematic diagram of the annular water collection assembly structure of a wastewater clarifier according to the present invention.

[0022] In the diagram: 1. Clarification tank; 2. Sludge thickening zone; 3. Multi-stage settling zone; 4. Dynamic flocculation zone; 5. Clear water collection zone; 6. Wastewater inlet pipe; 7. Clear water outlet pipe; 8. Sludge discharge pipe; 9. Rotary flocculation mixing assembly; 901. Dispersion blade; 902. Mixing blade; 903. Drive auxiliary shaft; 904. Flocculation blade; 905. Turbulence rib; 10. Inclined settling assembly; 1001. Settling plate; 1002. Sludge collection trough; 1003. Sludge guide pipe; 11. Self-cleaning anti-scaling assembly; 1101. Annular cleaning frame; 1102. Cleaning disc; 1103. Cavity column; 1104. Gear four; 1105. Bevel gear; 1106. Support rod one; 1107. Connecting column; 1108. Support rod two; 1109. Flexible cleaning brush; 1110. Drive rod one. 1111, Lower Tank 1; 1112, Drive Rod 2; 1113, Lower Tank 2; 1114, Scraper; 1115, Inner Cylinder; 12, Sludge Thickening and Return Assembly; 1201, Thickening Cone; 1202, Spiral Thickening Paddle; 1203, Return Pipe; 1204, Flow Control Valve; 13, Annular Water Collection Assembly; 1301, Annular Water Collection Tank; 1302, Jacket; 1303, Water Collection 1304. Hole; 1305. Water baffle; 14. Flow guide filter plate; 15. Drive component; 1401. Housing; 1402. Motor; 1403. Gear 3; 1404. Gear 1; 1405. Gear 2; 1406. Drive main shaft; 1407. Drive secondary shaft; 1408. Upper column; 1409. Lower column; 1410. Frame; 1411. Middle column; 1412. L-shaped frame. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-9 This invention provides a wastewater clarifier technical solution, including a clarifier tank 1. The clarifier tank 1 is divided into a sludge thickening zone 2, a multi-stage settling zone 3, a dynamic flocculation zone 4, and a clear water collection zone 5 from bottom to top. A wastewater inlet pipe 6 is located on one side of the dynamic flocculation zone 4, a clear water outlet pipe 7 is located at the top of the other side, and a sludge discharge pipe 8 is located at the center of the bottom. A rotary flocculation mixing component 9 is installed in the dynamic flocculation zone 4. An inclined settling component 10 and a self-cleaning anti-scaling component 11 are installed in the multi-stage settling zone 3. A sludge thickening and return component 12 is installed in the sludge thickening zone 2. A ring-shaped water collection assembly 13 is provided in the water collection area 5; a drive component 14 is provided on the top of the clarification tank 1, and the output end of the drive component 14 extends into the interior of the clarification tank 1 and is connected to the rotary flocculation mixing assembly 9 and the self-cleaning anti-scaling assembly 11; a chemical dosing system and a central control module are provided on the outside of the clarification tank 1, and the chemical dosing system, the drive component, and the sludge thickening and return assembly are all electrically connected to the central control module; the chemical dosing system includes a flocculant storage tank and a coagulant aid storage tank, and the flocculant storage tank and the coagulant aid storage tank are connected to the wastewater inlet pipe through a metering pump, and the metering pump is electrically connected to the central control module.

[0025] See Figure 4The driving component 14 includes a housing 1401, which is fixedly installed at the top center of the clarification tank 1. A motor 1402 is located at the center of one side of the housing 1401. The output end of the motor 1402 is connected to a shaft. A gear 3 1403 is located on the side of the shaft away from the motor 1401. Gear 1 1404 and gear 2 1405, respectively meshing with gear 3 1403, are located above and below the side of gear 3 1403 away from the motor 1402. A drive shaft 1406 is located at the bottom center of gear 2 1405, which passes through the housing 1401, the clarification tank 1, and is mechanically linked to the rotary flocculation mixing component 9. A drive secondary shaft 1407 is located at the bottom center of gear 1 1404, which passes through the drive primary shaft 1406 and is mechanically linked to the rotary flocculation mixing component 9. Linkage; a gear shaft is provided at the top center of the gear 1404, and the top of the gear shaft is movably connected to the inner top wall of the housing 1401. An upper column 1408 is sleeved on the gear shaft; a lower column 1409 is sleeved on the drive shaft 1406 at the bottom of the housing 1401, and a frame 1410 is provided between the lower column 1409 and the side of the upper column 1408. A middle column 1411 is provided at the center of the side of the frame 1410 away from the inner wall of the housing 1401. The middle column 1411 is located between the gear 1404 and the gear 2 1405. A gear shaft 3 is inserted in the middle of the middle column 1411, and one end of the gear shaft 3 is connected to the side of the gear 3 1403; an L-shaped frame 1412 is provided at the bottom of the motor 1402, and the end of the L-shaped frame 1412 away from the motor 1402 is fixed to the side of the lower column 1409. The rotary flocculation mixing component 9 includes a dispersing blade 901 sleeved on the drive main shaft 1406, a mixing blade 902 below the dispersing blade 901, the mixing blade 902 sleeved on the bottom of the drive secondary shaft 1407, a drive auxiliary shaft 903 at the center of the bottom plate of the mixing blade 902, a flocculation blade 904 sleeved on the upper part of the drive auxiliary shaft 903, and a mechanical linkage between the lower part of the drive auxiliary shaft 903 and the self-cleaning anti-scaling component 11. The dispersing blade 901 has a serrated structure for rapidly dispersing and mixing wastewater and flocculant; the mixing blade 902 has a spiral structure for achieving deep mixing of flocculant and wastewater; the flocculation blade 904 has an arc-shaped structure for promoting the aggregation of fine flocs into large-particle-size dense flocs; and the inner wall of the dynamic flocculation zone 4 is provided with several turbulence-inducing ribs 905.

[0026] The starter motor 1402 drives gear 3 1403 to rotate. Gear 3 1403 drives gear 1 1404 and gear 2 1405 on the upper and lower sides to rotate in the opposite direction. Gear 1 1404 drives the drive secondary shaft 1407 to rotate. The drive secondary shaft 1407 drives the mixing blade 902 to rotate. The mixing blade 902 drives the drive auxiliary shaft 903 to rotate. The drive auxiliary shaft 903 drives the flocculation blade 904 to rotate. Gear 2 1405 drives the drive main shaft 1406 to rotate in the opposite direction. The drive main shaft 1406 drives the dispersing blade 901 to rotate. The rotation speed of the dispersing blade 901, the mixing blade 902, and the flocculation blade 904 can be set to high speed, medium speed, and low speed, so that the agent is dispersed at high speed and the flocs are protected from being broken at low speed, allowing the flocs to grow and form quickly.

[0027] See Figure 5 The inclined settling assembly 10 includes three inclined settling plates 1001 arranged sequentially from top to bottom. The inclination angle of the settling plates 1001 increases sequentially from top to bottom, and the spacing between adjacent settling plates 1001 gradually increases from bottom to top. The surface of the settling plates 1001 is provided with a nano-hydrophobic coating. A sludge collection trough 1002 is provided below the settling plates 1001, and a sludge guide pipe 1003 is provided at the bottom of the sludge collection trough 1002. The lower part of the sludge guide pipe 1003 extends downward at an inclination to the sludge concentration zone 2.

[0028] See Figure 6 , Figure 7 The self-cleaning anti-scaling component 11 includes an annular cleaning frame 1101. A cleaning disc 1102 is located at the bottom of the annular cleaning frame 1101. The cleaning disc 1102 is fixedly sleeved on the drive auxiliary shaft 903. A hollow column 1103 is located at the bottom of the cleaning disc 1102. An inner cylinder 1115 is located at the center of the hollow column 1103. Three gears 1104, corresponding one-to-one with the three-stage settling plates 1001, are sleeved on the inner cylinder 1115. Meshing bevel gears 1105 are located on the corresponding sides of each gear 1104. An inclined support rod 1106 is located at the center of the bottom of each bevel gear 1105. The support rod 1106 penetrates the bottom of the hollow column 1103. A connecting column 1107 is located at the bottom of the support rod 1106. The bottom of the connecting column 1107 is provided with a second support rod 1108, and the bottom of the second support rod 1108 is provided with a bottom groove. The bottom groove is provided with an elastic cleaning brush 1109, which is in contact with the top surface of the settling plate 1001. The bottom of the cleaning disc 1102 is provided with a first drive rod 1110 on both sides away from the first support rod 1106. The bottom of the first drive rod 1110 is provided with a lower groove 1111, and the lower groove 1111 is provided with an inclined second drive rod 1112. The side of the second drive rod 1112 away from the first drive rod 1110 is provided with a second lower groove 1113, and the lower groove 1113 is provided with a scraper 1114. The scraper 1114 is composed of an upper plate, a corrugated plate and a lower plate in one piece. The outer side of the scraper 1114 is in contact with the inner wall of the clarification tank 1.

[0029] The inner cylinder 1115 is fixedly installed in the multi-stage settling zone 3. When the drive auxiliary shaft 903 rotates, it drives the cleaning disc 1102 to rotate. The cleaning disc 1102 drives the cavity column 1103 to rotate. The cavity column 1103 drives the support rods 1106 on both sides of the bottom. The support rods 1106 drive the elastic cleaning brush 1109 below to rotate and clean the top surface of the settling plate 1001 attached below. After the cleaning disc 1102 rotates, it drives the drive rods 1110 on both sides of the bottom plate. The drive rods 1110 drive the drive rods 1112 to swing, so that the scraper 1114 rotates and scrapes the mud along the inner wall of the tank and slides along the inner wall of the clarification tank 1 to scrape off the impurities adhering to it.

[0030] See Figure 3 , Figure 8 The sludge thickening and reflux assembly 12 includes a thickening cone 1201, which is fixed at the bottom of the sludge thickening zone 2 and connected to the bottom of the sludge discharge pipe 8. A spiral thickening paddle 1202 is provided inside the thickening cone 1201 and is fixedly connected to the bottom of the drive auxiliary shaft 903. A reflux pipe 1203 is provided in the middle of the side of the thickening cone 1201, and the other end of the reflux pipe 1203 extends through the clarification tank 1 to the bottom of the side of the dynamic flocculation zone 4. A flow regulating valve 1204 is provided on the reflux pipe 1203.

[0031] See Figure 9 The annular water collection assembly 13 includes an annular water collection trough 1301, which is fixed inside the clean water collection area 5. The annular water collection trough 1301 has an inner layer 1302, and a plurality of flow guide filter plates 1305 are provided inside the inner layer 1302. The flow guide filter plates 1305 are used to distribute water evenly and prevent eddy currents. The inner layer 1302 has a plurality of evenly distributed water collection holes 1303. The outer side of the annular water collection trough 1301 is connected to the clean water outlet pipe 7. A baffle plate 1304 is provided below the annular water collection trough 1301.

[0032] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0033] During use, the wastewater to be treated enters the clarification tank 1 through the wastewater inlet pipe 6. The central control module controls the chemical dosing system to automatically add flocculants and coagulants based on the wastewater flow rate and turbidity data. The wastewater and chemicals enter the dynamic flocculation zone 4, where the drive motor 1402 drives the three-layer blades to rotate. The dispersing blade 901 quickly disperses the chemicals and wastewater, the mixing blade 902 achieves deep mixing, and the flocculation blade 904 promotes floc aggregation. With the cooperation of the turbulence ribs 905, large-particle-size dense flocs are formed. Wastewater containing large-diameter flocs enters the multi-stage settling zone 3 and flows sequentially through three inclined settling plates 1001: the first settling plate 1001 intercepts large-diameter flocs, the second settling plate 1001 intercepts medium-diameter flocs, and the third settling plate 1001 intercepts small-diameter flocs; the flocs settle to the sludge collection trough 1002 under gravity and fall into the sludge thickening zone 2 through the sludge guide pipe 1003; through the stepped settling design, the settling path of the flocs is greatly extended, improving the separation efficiency; The drive motor 1402 drives the annular cleaning frame 1101 to rotate synchronously. The elastic cleaning brush 1109 cleans the sludge layer on the surface of the settling plate 1001 in real time. The scraper 1114 scrapes off the sludge attached to the inner wall of the clarification tank 1. The cleaned sludge falls into the sludge concentration zone 2 with the water flow, realizing the continuous self-cleaning of the equipment and avoiding scaling and clogging. After settling, the sludge enters the sludge thickening zone 2. The spiral thickening paddle 1202 in the thickening cone 1201 rotates and squeezes, increasing the sludge concentration. Part of the thickened sludge is returned to the dynamic flocculation zone 4 through the return pipe 1203 to serve as flocculation nuclei and promote the growth of new flocs. The remaining sludge is discharged through the sludge discharge pipe 8, without the need for additional thickening equipment. After multiple stages of sedimentation, the clean water enters the clean water collection area 5. The baffle plate 1304 intercepts the small flocs that have not settled. The clean water flows into the annular water collection tank 1301 through the water collection hole 1303 and is finally discharged through the clean water outlet pipe 7.

[0034] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater clarifier, characterized in that, It includes a clarification tank (1), which is divided into a sludge thickening zone (2), a multi-stage sedimentation zone (3), a dynamic flocculation zone (4), and a clear water collection zone (5) from bottom to top. The clarification tank (1) has a wastewater inlet pipe (6) on one side of the dynamic flocculation zone (4), a clean water outlet pipe (7) on the top of the other side, and a sludge discharge pipe (8) at the center of the bottom. The dynamic flocculation zone (4) is equipped with a rotary flocculation mixing component (9), the multi-stage sedimentation zone (3) is equipped with an inclined sedimentation component (10) and a self-cleaning anti-scaling component (11), the sludge concentration zone (2) is equipped with a sludge concentration return component (12), and the clear water collection zone (5) is equipped with a ring-shaped water collection component (13). The top of the clarification tank (1) is provided with a drive component (14), and the output end of the drive component (14) extends into the interior of the clarification tank (1) and is connected to the rotary flocculation mixing component (9) and the self-cleaning anti-scaling component (11). The outside of the clarification tank (1) is equipped with a reagent dosing system and a central control module. The reagent dosing system, drive components, and sludge thickening and reflux components are all electrically connected to the central control module.

2. The wastewater clarifier according to claim 1, characterized in that, The drive component (14) includes a housing (1401), which is fixedly installed at the top center of the clarification tank (1). A motor (1402) is provided at the center of one side inside the housing (1401). The output end of the motor (1402) is connected to a shaft. A gear three (1403) is provided on the side of the shaft away from the motor (1401). A gear one (1404) and a gear two (1405) that mesh with the gear three (1403) are respectively provided above and below the side of the gear three (1403) away from the motor (1402). The bottom center of gear 2 (1405) is provided with a drive shaft (1406), which passes through the housing (1401), the clarification tank (1) and the rotary flocculation mixing component (9) for mechanical linkage; A drive secondary shaft (1407) is provided at the bottom center of gear one (1404). The drive secondary shaft (1407) passes through the drive main shaft (1406) and is mechanically linked with the rotary flocculation mixing component (9).

3. A wastewater clarifier according to claim 2, characterized in that, The gear shaft is located at the top center of the gear (1404), and the top of the gear shaft is movably connected to the top wall of the housing (1401). An upper column (1408) is sleeved on the gear shaft. The drive spindle (1406) is fitted with a lower column (1409) at the bottom inside the housing (1401). A frame (1410) is provided between the lower column (1409) and the side of the upper column (1408). A middle column (1411) is provided at the center of the side of the frame (1410) away from the inner wall of the housing (1401). The middle column (1411) is located between gear one (1404) and gear two (1405). A gear shaft three is inserted in the middle of the middle column (1411). One end of the gear shaft three is connected to the side of gear three (1403). The bottom of the motor (1402) is provided with an L-shaped frame (1412), and the end of the L-shaped frame (1412) away from the motor (1402) is fixed to the side of the lower column (1409).

4. A wastewater clarifier according to claim 3, characterized in that, The rotary flocculation mixing component (9) includes a dispersing blade (901) sleeved on the drive main shaft (1406), a mixing blade (902) below the dispersing blade (901), the mixing blade (902) sleeved on the bottom of the drive secondary shaft (1407), a drive auxiliary shaft (903) at the center of the bottom plate of the mixing blade (902), a flocculation blade (904) sleeved on the upper part of the drive auxiliary shaft (903), and the lower part of the drive auxiliary shaft (903) mechanically linked with the self-cleaning anti-scaling component (11).

5. A wastewater clarifier according to claim 4, characterized in that, The dispersion blade (901) has a serrated structure and is used to quickly disperse and mix wastewater and flocculant; The mixing blade (902) has a spiral structure to achieve deep mixing of flocculant and wastewater; The flocculation blade (904) has an arc-shaped structure, which promotes the aggregation of fine flocs into large-particle-size dense flocs; The inner wall of the dynamic flocculation zone (4) is provided with several turbulence ribs (905).

6. A wastewater clarifier according to claim 5, characterized in that, The inclined settlement assembly (10) includes three inclined settlement plates (1001) arranged sequentially from top to bottom. The inclination angle of the settlement plates (1001) increases sequentially from top to bottom, and the spacing between adjacent settlement plates (1001) gradually increases from bottom to top. The surface of the settling plate (1001) is provided with a nano-hydrophobic coating; Below the settling plate (1001) is a sludge collection trough (1002), and at the bottom of the sludge collection trough (1002) is a sludge guide pipe (1003). The lower part of the sludge guide pipe (1003) extends downward at an incline to the sludge concentration zone (2).

7. A wastewater clarifier according to claim 6, characterized in that, The self-cleaning anti-scaling component (11) includes an annular cleaning frame (1101), a cleaning disc (1102) at the bottom of the annular cleaning frame (1101), a cavity column (1103) at the bottom of the cleaning disc (1102), an inner cylinder (1115) at the center of the cavity column (1103), and three gears (1104) corresponding to the three-stage settling plates (1001) on the inner cylinder (1115). The gears (1104) have meshing conical teeth on their corresponding sides. The wheel (1105) and the bevel gear (1105) have an inclined support rod (1106) at the bottom center. The support rod (1106) passes through the bottom of the cavity column (1103). The bottom of the support rod (1106) has a connecting column (1107). The bottom of the connecting column (1107) has a support rod (1108). The bottom of the support rod (1108) has a bottom groove. The bottom groove has an elastic cleaning brush (1109). The elastic cleaning brush (1109) is in contact with the top surface of the settling plate (1001). The bottom of the cleaning disc (1102) is provided with drive rods (1110) on both sides opposite to the support rod (1106). The bottom of the drive rod (1110) is provided with a lower groove (1111). The lower groove (1111) is provided with an inclined drive rod (1112). The side of the drive rod (1112) away from the drive rod (1110) is provided with a lower groove (1113). The lower groove (1113) is provided with a scraper (1114). The scraper (1114) is composed of an upper plate, a corrugated plate and a lower plate in one piece. The outer side of the scraper (1114) is in contact with the inner wall of the clarification tank (1).

8. A wastewater clarifier according to claim 7, characterized in that, The sludge thickening and recirculation assembly (12) includes a thickening cone (1201), which is fixed at the bottom of the sludge thickening zone (2), and the bottom of the thickening cone (1201) is connected to the sludge discharge pipe (8). The concentrator cone (1201) is equipped with a spiral concentrator (1202), which is fixedly connected to the bottom of the drive auxiliary shaft (903); A return pipe (1203) is provided in the middle of the side of the concentration cone (1201). The other end of the return pipe (1203) extends through the clarification tank (1) to the bottom of the side of the dynamic flocculation zone (4). A flow regulating valve (1204) is provided on the return pipe (1203).

9. A wastewater clarifier according to claim 8, characterized in that, The annular water collection assembly (13) includes an annular water collection tank (1301), which is fixed inside the clean water collection area (5). The annular water collection tank (1301) has an inner layer (1302) inside, and several flow guide filter plates (1305) are provided inside the inner layer (1302). Several evenly distributed water collection holes (1303) are provided on the inner wall of the inner layer (1302). The outer side of the annular water collection tank (1301) is connected to the clean water outlet pipe (7). A baffle plate (1304) is provided below the annular water collection tank (1301).

10. A wastewater clarifier according to claim 1, characterized in that, The reagent dosing system includes a flocculant storage tank and a coagulant aid storage tank. The flocculant storage tank and the coagulant aid storage tank are connected to the wastewater inlet pipe via a metering pump, and the metering pump is electrically connected to the central control module.

Images