A high-efficiency central precipitation device and method for sewage treatment

Abstract

The application discloses a kind of high-efficiency center precipitation device and method for sewage treatment, it is related to sedimentation tank technical field.The present application includes bottom plate, and the upper end surface one side of bottom plate is fixedly connected with sedimentation filter structure, and the upper part of the inner cavity of sedimentation filter structure is fixedly connected with flow guide separation mechanism symmetrically, and water distribution structure is fixedly connected between two flow guide separation mechanisms, and water collecting structure is fixedly connected between the inner cavity of sedimentation filter structure and flow guide separation mechanism, and the upper end surface of bottom plate is fixedly connected with storage structure on the side away from sedimentation filter structure, and adjusting structure is arranged on the two sides before and after storage structure on the upper end surface of bottom plate, and discharge structure is arranged in the lower part of the inner cavity of sedimentation filter structure and storage structure, and flow regulating structure is fixedly connected at the end of discharge structure away from sedimentation filter structure, in use, flow guide separation mechanism, water collecting structure are installed and placed, and the inner cavity of sedimentation tank is separated by separation cone, to realize the mutual separation of sewage and sludge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sedimentation tanks, in particular to a high-efficiency central sedimentation device and method for sewage treatment. BACKGROUND

[0002] After searching, a sewage treatment sedimentation tank (CN116747568A) is disclosed, which comprises a sedimentation mechanism, an upper part of the sedimentation mechanism is provided with a sewage pumping pump, an output port of the sewage pumping pump is fixedly connected with a sewage outlet pipe; an outer wall of the sedimentation mechanism is provided with a drying frame, an inner cavity of the sedimentation mechanism is provided with a scraping mechanism, the scraping mechanism is used for sludge loosening and sludge scraping accumulation; the inner cavity of the sedimentation mechanism is provided with a sewage pumping mechanism, the sewage pumping mechanism is used for pumping out the accumulated sludge. The present application utilizes the setting mode of cooperation between the scraping mechanism and the sewage pumping mechanism, through the loosening assembly on the scraping mechanism, the sludge at the bottom of the tank body is loosened, the scraping plate can accumulate the sludge in the inner cavity of the tank body on one side of the scraping plate, the sewage pumping mechanism can stably pump out the sludge to the inner cavity of the drying frame, the sludge can be used as fertile fertilizer, the sewage pumping is convenient and the pumping efficiency is improved.

[0003] Traditional sedimentation tanks often cause local turbulence or short flow due to water impact, resulting in partial areas not fully precipitated and flowing out, mixed liquid containing bubbles easily forming a scum layer, hindering sludge settling and reducing the water quality transparency of the clarification zone. Mechanical sludge scraper or screw pump relies on electric drive, has high failure rate and high energy consumption, sludge discharge capacity is limited by equipment performance, and high-viscosity sludge is prone to solidification at pipe bends. Traditional chemical cleaning has high cost and pollutes the environment.

[0004] Therefore, the existing high-efficiency central sedimentation device and method for sewage treatment cannot meet the needs in actual use, so there is an urgent need for improved technology on the market to solve the above problems. SUMMARY

[0005] The present application aims to provide a high-efficiency central sedimentation device and method for sewage treatment, which solves the problems raised in the background art by setting.

[0006] To solve the above technical problems, the present application is realized by the following technical scheme:

[0007] The application discloses a high-efficiency central precipitation device for sewage treatment.

[0008] Preferably, the precipitation filtering structure comprises a precipitation tank fixedly connected to one side of the upper end surface of the bottom plate, a separation cone fixedly connected to the lower end surface in the cavity of the precipitation tank, the separation cones being cross-shaped, a plurality of drainage grooves symmetrically formed in the upper end surface of the precipitation tank, and flow guide separation mechanisms symmetrically fixedly connected to the cavity of the precipitation tank, wherein the cavity of the precipitation tank is divided into a plurality of precipitation filtering areas by the separation cones.

[0009] Preferably, the flow guide separation mechanism comprises a fixed frame fixedly connected to the cavity of the precipitation tank, flow guide cylinders fixedly connected to the cavity of the fixed frame in a symmetrical manner, and separation cones fixedly connected to the lower end surfaces of the flow guide cylinders through connecting columns, wherein water distribution structures are arranged between adjacent two separation cones.

[0010] Preferably, the water distribution structure comprises water distribution pipes fixedly connected between adjacent two flow guide cylinders, a connecting pipe fixedly connected to the middle part between the two water distribution pipes, and a conveying pipe fixedly connected to the front part of the outer surface of the connecting pipe and penetrating through the precipitation tank.

[0011] Preferably, the water collecting structure comprises a water collecting frame fixedly connected to the cavity of the precipitation tank in a symmetrical manner, the water collecting frame being located between the side wall of the precipitation tank and the flow guide separation mechanism, separation plates fixedly connected to the two side end surfaces of the water collecting frame, and water collecting weirs uniformly formed in the upper end surface of the water collecting frame, wherein the cavities of the separation plates and the drainage grooves are in communication.

[0012] Preferably, the storage structure comprises a sludge storage frame fixedly connected to one side of the upper end surface of the bottom plate and located at the side of the precipitation tank, fixed rods uniformly fixedly connected to the side, away from the precipitation filtering structure, in the cavity of the sludge storage frame, a sludge pipe fixedly connected to the middle part in the cavity of the fixed rod, and a sludge pump fixedly connected to the lower end surface of the sludge pipe in the cavity of the sludge storage frame.

[0013] Preferably, the adjusting structure comprises a fan fixedly connected to the front end of the sludge storage frame in the upper end surface of the bottom plate, and a water pump fixedly connected to the side, away from the fan, in the upper end surface of the bottom plate, wherein the discharge structure is fixedly connected to the fan and the water pump.

[0014] Preferably, the discharge structure comprises a sludge discharge pipe symmetrically fixedly connected to the lower end face of the inner cavity of the sedimentation tank, the end of the sludge discharge pipe away from the sedimentation tank penetrates the inner cavity of the sludge storage rack, the upper end face of the sludge discharge pipe is fixedly connected with an air inlet pipe on one side of the inner cavity of the sludge storage rack, and the upper end face of the sludge discharge pipe is fixedly connected with a water delivery pipe on one side of the air inlet pipe. The sludge discharge pipe comprises a sludge discharge pipe one in communication with the sedimentation and filtration area of the inner cavity of the sedimentation tank away from the sludge storage rack, a sludge discharge pipe two in communication between the inner cavity of the sludge storage rack and the sedimentation and filtration area close to one side of the sludge storage rack, and a flow regulating structure fixedly connected to the left end face of the sludge discharge pipe one and the sludge discharge pipe two, and the end of the sludge discharge pipe one and the sludge discharge pipe two away from the sedimentation and filtration area penetrates the sludge storage rack and communicates with the inner cavity of the sludge storage rack.

[0015] Preferably, the flow regulating structure comprises a regulating valve fixedly connected to the end of the sludge discharge pipe one and the sludge discharge pipe two away from the sludge storage rack, a stabilizing rod fixedly connected to the middle of the inner cavity of the sludge storage rack, a transmission shaft rotatably connected to the upper end face of the outer surface of the regulating valve, and the transmission shaft penetrates the stabilizing rod and is rotatably connected. The driving module comprises a placement rod fixedly connected to the middle of the upper end face of the sludge storage rack, and drive motors symmetrically fixedly connected to the lower end face of the placement rod, and the output end of the drive motor is fixedly connected with the transmission shaft.

[0016] The turbulence structure comprises rotating rods symmetrically rotatably connected to the inner cavity of the sludge storage rack between the regulating valve and the sludge pump, turbulence plates uniformly fixedly connected to the outer surface of the rotating rods, and a turbulence driving structure arranged on the rear end face of the sludge storage rack. The turbulence driving structure comprises worm wheels symmetrically rotatably connected to one side of the rear end face of the sludge storage rack, the rear end face of the rotating rod is rotatably connected with the two worm wheels respectively, a worm rotatably connected with the two worm wheels through a support and arranged on the rear end face of the sludge storage rack between the two worm wheels, the worm wheels and the worm are in meshing engagement, a turbulence motor fixedly connected to the upper part of the worm on the rear end face of the sludge storage rack, and the output end of the turbulence motor is fixedly connected with the end of the transmission shaft penetrating the support.

[0017] A high-efficiency central sedimentation method for sewage treatment, characterized by comprising the following steps

[0018] S1: water inlet and water distribution; water flow is delivered to the connecting pipe through the delivery pipe, and then evenly distributed to the four flow separation mechanism areas through the connecting pipe and the delivery pipe, to ensure that the mixed liquid (containing mud, water and gas three phases) stably enters the sedimentation and filtration area (referred to as mud bucket);

[0019] S2: gas-water separation and sludge-water separation process; flow rate control: the flow rate of the mixed liquid entering the flow separation mechanism is strictly controlled at 0.1-0.3 m / s, which can promote efficient separation of gas and water, reduce the interference of bubbles on the sedimentation process, and thus improve the sludge-water separation effect of the clarification zone;

[0020] Sludge settlement: the sludge in the mixed liquor is settled under the action of gravity, gathered at the bottom of the hopper under the separation cone, and the core process of sludge and water separation is completed.

[0021] S3: sludge discharge and reflux; unpowered sludge discharge mechanism: the sludge in the hopper is discharged into the sludge storage rack through the sludge discharge pipe, and the liquid level difference between the sedimentation filtration zone and the sludge storage rack is used to realize unpowered sludge discharge (the liquid level difference can be controlled by adjusting the liquid level of the sludge storage tank by the sludge pump), which reduces energy consumption while ensuring stable sludge discharge;

[0022] Sludge treatment path: the sludge in the sludge storage rack is divided into two paths by the sludge pump---part of the activated sludge is returned to the biochemical unit to maintain the sludge concentration of the biochemical system; the remaining sludge is discharged to the residual sludge tank for subsequent treatment, at the same time, the disturbance driving structure is started, so that the disturbance motor output end rotates, so the worm rotates, and since the worm wheel and the worm are meshed with each other, the worm wheel rotates, and further since the rotating rods are respectively fixedly connected with the two worm wheels, the rotating directions of the two rotating rods are opposite, so that the sludge is prevented from depositing at the bottom of the inner cavity of the sludge storage rack, affecting the conveying efficiency of the sludge pump;

[0023] S4: sludge discharge adjustment; flow adjustment: since the sludge discharge pipe is provided with an adjusting valve, the driving module is started, so that the driving motor output end rotates, so the transmission shaft rotates, thereby changing the flow area of the adjusting valve to accurately adjust the sludge discharge flow, reducing the influence of water body turbulence on sludge settlement in the sedimentation tank during sludge discharge, and improving the sludge concentration efficiency;

[0024] S5: blockage treatment; blockage solution: when the sludge discharge pipe is not smooth, the driving motor is started, so that the transmission shaft reversely rotates, and then the adjusting valve is completely closed, so that the water outlet of the sludge discharge pipe is closed, at this time the water pump pressurizes the inner cavity of the sludge discharge pipe through the water transmission pipe, or the air fan pressurizes the inner cavity of the sludge discharge pipe through the air inlet pipe, so that the water flow and sludge in the inner cavity of the sludge discharge pipe flow reversely, thereby realizing reverse flushing of the sludge discharge pipe.

[0025] The present application has the following beneficial effects:

[0026] The present application is provided with a sedimentation and filtration structure on the bottom plate, which is used to install and place the flow guide separation mechanism and the water collecting structure, and further separates the inner cavity of the sedimentation tank by the separation cone to form a specific sedimentation and filtration area. The flow guide separation mechanism on the sedimentation and filtration structure is used to control the flow rate in the flow guide separation mechanism to 0.1-0.3 m / s in use, promote the escape of bubbles in a low-speed environment, realize efficient gas-water pre-separation, reduce the disturbance of bubbles on subsequent sludge-water separation, ensure the solid-liquid layering effect in the clarification zone, and further build a silent settling zone by the separation cone, strengthen the natural sedimentation path of sludge in a laminar flow environment dominated by gravity, and promote the directional enrichment of sludge at the bottom of the sludge hopper to realize efficient sludge-water separation. The water distribution structure on the flow guide separation mechanism is used to transport water flow in use, and further realize uniform radial distribution of mixed liquor through the hierarchical water distribution system of the delivery pipe, the connecting pipe and the four-way flow guide separation mechanism, avoid single-point strong impact, and make the water flow smoothly into the sludge hopper of the sedimentation and filtration zone to significantly improve the utilization rate of the sedimentation and filtration zone. The water collecting structure on the sedimentation and filtration structure is used to collect and transport the clear water in the inner cavity of the sedimentation tank through the water collecting frame and the water collecting weir in use, and further block the water surface scum by the outer separation plate.

[0027] The storage structure on the bottom plate is used to store sludge in use, and further realize natural sludge discharge through the liquid level difference between the sedimentation and filtration zone and the sludge storage rack. Further adjusting the liquid level difference in the inner cavity of the sludge storage rack by the sludge pump not only reduces the power consumption, but also ensures the continuity and stability of sludge discharge through stable liquid level difference, avoids high energy consumption and instability of power-driven sludge discharge, has bidirectional treatment capacity of sludge backflow and residual sludge discharge, connects the biochemical system and the subsequent sludge treatment link, adjusts the flow direction of water flow and sludge in the inner cavity of the sludge discharge pipe through the adjusting structure on the bottom plate in use, realizes reverse flushing when the sludge discharge pipe is blocked by the pressurization of the fan or water pump, further removes the attached sludge on the pipe wall through periodic backwashing to prolong the service life of the sludge discharge pipe, reduce the frequency of manual dredging, and make the inner cavities of the sedimentation tank and the sludge storage rack communicate through the sludge discharge pipe in use to realize non-powered sludge discharge under the action of gravity and liquid level difference. The flow regulating structure on the discharge structure is used to continuously and accurately adjust the sludge discharge amount by controlling the flow area of the regulating valve in use, and further avoid the instantaneous flow mutation caused by the opening and closing of the traditional gate valve through the fine adjustment mode to reduce the disturbance to the flow field of the sedimentation tank and protect the sludge layer structure formed. The drive module on the storage structure is used to control the flow of the regulating valve in use, and the flow disturbing structure on the storage structure is used to stir and disturb the sludge in the inner cavity of the sludge storage rack in use to avoid the sludge from depositing at the bottom of the sludge storage rack due to its large density, which affects the sludge conveying and treatment efficiency.

[0028] Of course, implementing any product of the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0030] Figure 1 It is a front view of the structure of the present application.

[0031] Figure 2 It is a top view of the structure of the present application.

[0032] Figure 3 It is a lateral half-section view of the structure of the present application.

[0033] Figure 4 It is a schematic view of the installation structure of the flow guide separation mechanism of the present application.

[0034] Figure 5 It is a schematic view of the installation structure of the discharge structure of the present application.

[0035] Figure 6 It is a schematic view of the installation structure of the water collecting structure of the present application.

[0036] In the drawings, the components represented by each reference numeral are listed as follows:

[0037] 1, bottom plate; 2, sedimentation and filtration structure; 21, sedimentation tank; 22, separation cone; 23, drainage groove; 3, flow guide separation mechanism; 31, fixing frame; 32, flow guide cylinder; 33, separation cone; 4, water distribution structure; 41, water distribution pipe; 42, connecting pipe; 43, conveying pipe; 5, water collecting structure; 51, water collecting frame; 52, separation plate; 53, water collecting weir; 6, storage structure; 61, sludge storage frame; 62, fixing rod; 63, sludge pipe; 64, sludge pump; 7, adjusting structure; 71, fan; 72, water pump; 8, discharge structure; 81, sludge discharge pipe; 811, sludge discharge pipe one; 812, sludge discharge pipe two; 82, air inlet pipe; 83, water conveying pipe; 9, flow adjusting structure; 91, adjusting valve; 92, stabilizing rod; 93, transmission shaft; 10, driving module; 101, placing rod; 102, driving motor; 11, turbulence structure; 111, rotating rod; 112, turbulence plate; 113, turbulence driving structure; 1131, worm gear; 1132, worm; 1133, turbulence motor. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0039] Please refer toFigures 1-6 As shown, the embodiment is a kind of high-efficiency center precipitation device for sewage treatment, including bottom plate 1, the upper end surface one side of the bottom plate 1 is fixedly connected with sedimentation filter structure 2, the inner cavity upper portion of sedimentation filter structure 2 is fixedly connected with flow guide separation mechanism 3, water distribution structure 4 is fixedly connected between two flow guide separation mechanism 3, water collection structure 5 is fixedly connected between the inner cavity of sedimentation filter structure 2 and flow guide separation mechanism 3 respectively, storage structure 6 is fixedly connected on the upper end surface of bottom plate 1 away from sedimentation filter structure 2 side, adjusting structure 7 is arranged on the upper end surface of bottom plate 1 and located at the front and rear sides of storage structure 6, discharge structure 8 is arranged in the inner cavity lower portion of sedimentation filter structure 2 and storage structure 6, flow regulating structure 9 is fixedly connected to one end of discharge structure 8 away from sedimentation filter structure 2, and drive module 10 is fixedly connected to the upper end surface middle portion of storage structure 6.

[0040] Further, the sedimentation filter structure 2 includes a sedimentation tank 21 fixedly connected to the upper end surface of the bottom plate 1, a separation cone 22 fixedly connected to the lower end surface of the inner cavity of the sedimentation tank 21, the separation cone 22 being cross-shaped, a drainage groove 23 symmetrically formed in the upper end surface of the sedimentation tank 21, and flow guide separation mechanisms 3 symmetrically fixedly connected to the inner cavity of the sedimentation tank 21. The inner cavity of the sedimentation tank 21 is divided into multiple sedimentation and filtration zones by the separation cone 22. The flow guide separation mechanisms 3 and the water collection structures 5 are installed and placed in use through the sedimentation filter structure 2 on the bottom plate 1. The inner cavity of the sedimentation tank 21 is then divided by the separation cone 22 to form specific sedimentation and filtration zones.

[0041] Further, the flow guide separation mechanism 3 includes a fixed frame 31 symmetrically fixedly connected to the inner cavity of the sedimentation tank 21, flow guide cylinders 32 fixedly connected to the inner cavity of the fixed frame 31, separation cones 33 fixedly connected to the lower end surface of the flow guide cylinders 32 through connecting columns, and water distribution structures 4 arranged between adjacent two separation cones 33. The flow rate in the flow guide separation mechanism 3 is controlled in use through the flow guide separation mechanism 3 on the sedimentation filter structure 2. The low-speed environment is utilized to promote bubble escape, realize efficient gas-water pre-separation, reduce the disturbance of bubbles on subsequent sludge-water separation, ensure the solid-liquid layering effect in the clarification zone, and then build a quiet settling zone through the separation cone 33. Combined with the laminar flow environment dominated by gravity, the natural sedimentation path of sludge is strengthened to promote the directional enrichment of sludge at the bottom of the sludge hopper, realizing efficient sludge-water separation.

[0042] Further, the water distribution structure 4 comprises a water distribution pipe 41 fixedly connected between two adjacent guide cylinders 32, a connecting pipe 42 fixedly connected in the middle between the two water distribution pipes 41, and a delivery pipe 43 fixedly connected to the front outer surface of the connecting pipe 42, the front end surface of the delivery pipe 43 penetrates the sedimentation tank 21. In use, the water flow is delivered through the water distribution structure 4 on the flow guide separation mechanism 3, and then the mixed liquid is uniformly distributed in the radial direction through the hierarchical water distribution system of the delivery pipe 43→the connecting pipe 42→the four-way flow guide separation mechanism 3, avoiding single-point strong impact, so that the water flow enters the sedimentation and filtration area hopper smoothly, and the utilization rate of the sedimentation and filtration area is significantly improved.

[0043] Further, the water collection structure 5 comprises a water collection frame 51 fixedly connected symmetrically in the inner cavity of the sedimentation tank 21, the water collection frame 51 is located between the side wall of the sedimentation tank 21 and the flow guide separation mechanism 3, and the two side end surfaces of the water collection frame 51 are fixedly connected with separation plates 52, and the upper end surface of the water collection frame 51 is uniformly provided with water collection weirs 53, and the inner cavities of the separation plates 52 are in communication with the drainage groove 23. In use, the clear water in the inner cavity of the sedimentation tank 21 is collected and transmitted through the water collection frame 51 and the water collection weirs 53 on the sedimentation and filtration structure 2, and then the water surface scum is blocked by the outer separation plate 52.

[0044] Further, the storage structure 6 comprises a sludge storage frame 61 fixedly connected to the upper end surface of the bottom plate 1 on one side of the sedimentation tank 21, and the inner cavities of the sludge storage frame 61 away from the sedimentation and filtration structure 2 are uniformly fixedly connected with fixed rods 62, the inner cavities of the fixed rods 62 are fixedly connected with sludge pipes 63 in the middle, and the inner cavities of the sludge storage frame 61 located below the lower end surface of the sludge pipe 63 are fixedly connected with sludge pumps 64. In use, the sludge is stored through the storage structure 6 on the bottom plate 1, and then the natural sludge discharge is realized through the liquid level difference between the sedimentation and filtration area and the sludge storage frame 61, and further the liquid level difference in the inner cavity of the sludge storage frame 61 is adjusted by the sludge pump 64, which not only reduces the power consumption, but also ensures the continuity and stability of sludge discharge through stable liquid level difference, avoids high energy consumption and instability of power sludge discharge, has bidirectional treatment capacity of sludge backflow and residual sludge discharge, and connects the biochemical system and the subsequent sludge treatment link.

[0045] Further, the adjusting structure 7 comprises a fan 71 fixedly connected to the upper end surface of the bottom plate 1 on the front end of the sludge storage frame 61, and a water pump 72 fixedly connected to the upper end surface of the bottom plate 1 away from the fan 71, and the discharge structure 8 is fixedly connected with the fan 71 and the water pump 72 respectively. In use, the flow direction of the water flow and the sludge in the inner cavity of the sludge discharge pipe 81 is adjusted through the adjusting structure 7 on the bottom plate 1, and then the reverse flushing is realized when the sludge discharge pipe 81 is blocked through the pressurization of the fan 71 or the water pump 72, and then the periodic backwashing can remove the attached sludge on the pipe wall, prolong the service life of the sludge discharge pipe, and reduce the frequency of manual dredging.

[0046] Further, the discharge structure 8 comprises a mud discharge pipe 81 fixedly connected to the lower end face of the inner cavity of the sedimentation tank 21, the end of the mud discharge pipe 81 away from the sedimentation tank 21 penetrates the inner cavity of the mud storage rack 61, the upper end face of the mud discharge pipe 81 is fixedly connected with an air inlet pipe 82 on one side of the inner cavity of the mud storage rack 61, and the upper end face of the mud discharge pipe 81 is fixedly connected with a water delivery pipe 83 on the side of the air inlet pipe 82. The mud discharge pipe 81 comprises a mud discharge pipe one 811 in communication with the sedimentation and filtration area of the inner cavity of the sedimentation tank 21 away from the mud storage rack 61, and a mud discharge pipe two 812 in communication between the inner cavity of the mud storage rack 61 and the sedimentation and filtration area close to one side of the mud storage rack 61. The left end faces of the mud discharge pipe one 811 and the mud discharge pipe two 812 are fixedly connected with the flow regulating structure 9, and the ends of the mud discharge pipe one 811 and the mud discharge pipe two 812 away from the sedimentation and filtration area penetrate the mud storage rack 61 and are in communication with the inner cavity of the mud storage rack 61. Through the discharge structure 8 on the bottom plate 1, the inner cavities of the sedimentation tank 21 and the mud storage rack 61 are communicated through the mud discharge pipe 81 in use, and then the unpowered mud discharge is realized under the action of gravity and liquid level difference.

[0047] Further, the flow regulating structure 9 comprises a regulating valve 91 fixedly connected to the ends of the mud discharge pipe one 811 and the mud discharge pipe two 812 away from the mud storage rack 61, a stabilizing rod 92 fixedly connected to the inner cavity of the mud storage rack 61, and a transmission shaft 93 rotatably connected to the upper end face of the outer surface of the regulating valve 91. The transmission shaft 93 penetrates the stabilizing rod 92 and is rotatably connected. The drive module 10 comprises a placement rod 101 fixedly connected to the upper end face of the mud storage rack 61, and drive motors 102 fixedly connected to the lower end face of the placement rod 101. The output end of the drive motor 102 is fixedly connected with the transmission shaft 93. Through the flow regulating structure 9 on the discharge structure 8, the flow area of the regulating valve 91 is controlled in use to realize continuous and accurate regulation of the discharge amount, and then the instantaneous flow mutation caused by the opening and closing of the traditional gate valve is avoided through the fine adjustment mode, the disturbance to the flow field of the sedimentation tank is reduced, and the formed sludge layer structure is protected. Through the drive module 10 on the storage structure 6, the flow of the regulating valve 91 is controlled in use.

[0048] The spoiler structure 11 includes a rotating rod 111 symmetrically connected in the inner cavity of the sludge storage rack 61 between the adjusting valve 91 and the sludge pump 64, the outer surface of the rotating rod 111 is uniformly fixedly connected with spoiler plates 112, the rear end surface of the sludge storage rack 61 is provided with a spoiler driving structure 113, the spoiler driving structure 113 includes a worm gear 1131 symmetrically connected on one side of the rear end surface of the sludge storage rack 61, the rear end surface of the rotating rod 111 is fixedly connected with the two worm gears 1131, respectively, a worm 1132 is rotatably connected on the rear end surface of the sludge storage rack 61 between the two worm gears 1131 through a support, the worm gear 1131 and the worm 1132 are meshed with each other, a spoiler motor 1133 is fixedly connected on the upper part of the worm 1132 on the rear end surface of the sludge storage rack 61, and the upper end surface of the worm 1132 is fixedly connected with the output end of the spoiler motor 1133 through the support. Through the spoiler structure 11 on the storage structure 6, the sludge in the inner cavity of the sludge storage rack 61 is stirred in use, so that the sludge is prevented from settling at the bottom of the inner cavity of the sludge storage rack 61 due to the large density, and the sludge conveying and processing efficiency is affected. Through the spoiler driving structure 113 on the storage structure 6, the rotation of the spoiler structure 11 is driven in use, and then the rotating speed of the rotating rod 111 is adjusted. At the same time, through the self-locking property between the worm gear 1131 and the worm 1132, the quick start and stop of the rotating rod 111 is realized.

[0049] A high-efficiency central sedimentation method for sewage treatment, characterized in that it comprises the following steps

[0050] S1: water inlet and water distribution; the water flow is conveyed to the connecting pipe 42 through the conveying pipe 43, and then evenly distributed to the four flow guide separation mechanisms 3 through the connecting pipe 42 and the conveying pipe 43, so as to ensure that the mixed liquid (containing three phases of sludge, water and gas) stably enters the sedimentation and filtration area (referred to as sludge hopper);

[0051] S2: gas-water separation and sludge-water separation process; flow rate control: the flow rate of the mixed liquid entering the flow guide separation mechanism 3 is strictly controlled at 0.1-0.3 m / s, which can promote efficient separation of gas and water and reduce the interference of bubbles on the sedimentation process, thereby improving the sludge-water separation effect of the clarification zone;

[0052] Sludge sedimentation: the sludge in the mixed liquid settles under the action of gravity and gathers at the bottom of the sludge hopper below the partitioning cone 33, thereby completing the core process of sludge-water separation;

[0053] S3: sludge discharge and backflow; non-powered sludge discharge mechanism: the sludge in the sludge hopper is discharged into the sludge storage rack 61 through the sludge discharge pipe 81, and the liquid level difference between the sedimentation and filtration area and the sludge storage rack 61 is utilized to realize non-powered sludge discharge (the liquid level difference can be controlled by adjusting the liquid level of the sludge storage tank by the sludge pump), thereby reducing energy consumption while ensuring stable sludge discharge;

[0054] Sludge treatment path: the sludge in the sludge storage frame 61 is divided into two paths by the sludge pump 64, part of the activated sludge is returned to the biochemical unit to maintain the sludge concentration of the biochemical system, and the remaining sludge is discharged to the residual sludge tank for subsequent treatment. At the same time, the turbulence driving structure 113 is started, so that the output end of the turbulence motor 1133 rotates, and the worm 1132 rotates. Since the worm gears 1131 and the worm 1132 are meshed with each other, the worm gears 1131 rotate. Further, since the rotating rods 111 are respectively fixedly connected to the two worm gears 1131, the rotating directions of the two rotating rods 111 are opposite, so as to avoid the deposition of sludge in the inner cavity of the sludge storage frame 61, thereby affecting the conveying efficiency of the sludge pump 64;

[0055] S4: sludge discharge adjustment; flow adjustment: since the sludge discharge pipe 81 is provided with an adjusting valve 91, the driving module 10 is started, so that the output end of the driving motor 102 rotates, and the transmission shaft 93 rotates, thereby changing the flow area of the adjusting valve 91 to accurately adjust the sludge discharge flow, reducing the influence of water body turbulence on the sludge settlement in the sedimentation tank during the sludge discharge process, and improving the sludge concentration efficiency;

[0056] S5: blockage treatment; blockage solution: when the sludge discharge pipe 81 is not discharged smoothly, the driving motor 102 is started, so that the transmission shaft 93 reversely rotates, and then the adjusting valve 91 is completely closed, so that the water outlet of the sludge discharge pipe 81 is closed. At this time, the water pump 72 pressurizes the inner cavity of the sludge discharge pipe 81 through the transmission of the water conveying pipe 83, or controls the air blower 71 to pressurize the inner cavity of the sludge discharge pipe 81 through the air inlet pipe 82, so as to realize the reverse flow of the water flow and the sludge in the inner cavity of the sludge discharge pipe 81, thereby realizing the reverse flushing of the sludge discharge pipe 81.

[0057] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0058] In the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-efficiency central sedimentation device for wastewater treatment, comprising a base plate (1), characterized in that; A sedimentation and filtration structure (2) is fixedly connected to one side of the upper end face of the base plate (1). A flow guiding and separation mechanism (3) is symmetrically fixedly connected to the upper part of the inner cavity of the sedimentation and filtration structure (2). A water distribution structure (4) is fixedly connected between the two flow guiding and separation mechanisms (3). A water collection structure (5) is fixedly connected between the inner cavity of the sedimentation and filtration structure (2) and the flow guiding and separation mechanism (3). A storage structure (6) is fixedly connected to the side of the upper end face of the base plate (1) away from the sedimentation and filtration structure (2). An adjustment structure (7) is provided on both the front and rear sides of the storage structure (6) on the upper end face of the base plate (1). A discharge structure (8) is provided at the lower part of the inner cavity of the sedimentation and filtration structure (2) and the storage structure (6). A flow regulating structure (9) is fixedly connected to the end of the discharge structure (8) away from the sedimentation and filtration structure (2). A drive module (10) is fixedly connected to the middle of the upper end face of the storage structure (6). A turbulence structure (11) is provided on the side of the inner cavity of the storage structure (6) located on the flow regulating structure (9). The sedimentation and filtration structure (2) includes a sedimentation tank (21) fixedly connected to one side of the upper end face of the bottom plate (1). A separation cone (22) is fixedly connected to the lower end face of the inner cavity of the sedimentation tank (21). The separation cone (22) is arranged in a cross shape. A drainage channel (23) is symmetrically opened on the upper end face of the sedimentation tank (21). A flow guiding and separation mechanism (3) is symmetrically fixedly connected to the inner cavity of the sedimentation tank (21). The separation cone (22) divides the inner cavity of the sedimentation tank (21) into multiple sedimentation and filtration zones, so that the sludge is separated from the sewage under the action of gravity and settles in the sedimentation and filtration zone. The flow guiding and separation mechanism (3) includes a fixed frame (31) symmetrically fixedly connected to the inner cavity of the sedimentation tank (21), a flow guiding cylinder (32) symmetrically fixedly connected to the inner cavity of the fixed frame (31), a partition cone (33) fixedly connected to the lower end face of the flow guiding cylinder (32) through a connecting column, and a water distribution structure (4) is provided between two adjacent partition cones (33). The storage structure (6) includes a sludge rack (61) fixedly connected to the upper end face of the bottom plate (1) on one side of the sedimentation tank (21). A fixing rod (62) is evenly fixedly connected to the inner cavity of the sludge rack (61) on the side away from the sedimentation and filtration structure (2). A sludge pipe (63) is fixedly connected to the middle of the inner cavity of the fixing rod (62). A sludge pump (64) is fixedly connected to the inner cavity of the sludge rack (61) at the lower end face of the sludge pipe (63). The discharge structure (8) includes a sludge discharge pipe (81) symmetrically fixedly connected to the lower end face of the inner cavity of the sedimentation tank (21), and the end of the sludge discharge pipe (81) away from the sedimentation tank (21) passes through the inner cavity of the sludge storage rack (61).

2. The high-efficiency central sedimentation device for wastewater treatment according to claim 1, characterized in that, The water distribution structure (4) includes a water distribution pipe (41) fixedly connected between two adjacent guide cylinders (32), a connecting pipe (42) fixedly connected in the middle between the two water distribution pipes (41), a conveying pipe (43) fixedly connected to the front of the outer surface of the connecting pipe (42), and the front end of the conveying pipe (43) penetrating the sedimentation tank (21).

3. The high-efficiency central sedimentation device for wastewater treatment according to claim 1, characterized in that, The water collection structure (5) includes a water collection frame (51) symmetrically fixedly connected to the inner cavity of the sedimentation tank (21). The water collection frame (51) is located between the side wall of the sedimentation tank (21) and the flow separation mechanism (3). Separation plates (52) are fixedly connected to both ends of the water collection frame (51). A water collection weir (53) is evenly opened on the upper end of the water collection frame (51). The inner cavity of the separation plate (52) is connected to the drainage trough (23).

4. The high-efficiency central sedimentation device for wastewater treatment according to claim 1, characterized in that, The adjustment structure (7) includes a blower (71) fixedly connected to the upper end of the base plate (1) at the front end of the mud storage rack (61), and a water pump (72) fixedly connected to the side of the upper end of the base plate (1) away from the blower (71). The discharge structure (8) is fixedly connected to the blower (71) and the water pump (72) respectively.

5. A high-efficiency central sedimentation device for wastewater treatment according to claim 1, characterized in that, The upper end face of the sludge discharge pipe (81) is fixedly connected to an air inlet pipe (82) on one side of the inner cavity of the sludge storage rack (61), and the upper end face of the sludge discharge pipe (81) is fixedly connected to a water supply pipe (83) on one side of the air inlet pipe (82). The sludge discharge pipe (81) includes a first sludge discharge pipe (811) that is connected to the sedimentation and filtration area of ​​the inner cavity of the sedimentation tank (21) away from the sludge storage rack (61). A second sludge discharge pipe (812) is connected between the inner cavity of the sludge storage rack (61) and the sedimentation and filtration area near the side of the sludge storage rack (61). A flow regulating structure (9) is fixedly connected to the left end face of the first sludge discharge pipe (811) and the second sludge discharge pipe (812). The ends of the first sludge discharge pipe (811) and the second sludge discharge pipe (812) that are away from the sedimentation and filtration area pass through the sludge storage rack (61) and are connected to each other in the inner cavity of the sludge storage rack (61).

6. A high-efficiency central sedimentation device for wastewater treatment according to claim 5, characterized in that, The flow regulation structure (9) includes a regulating valve (91) fixedly connected to the end of the first sludge pipe (811) and the second sludge pipe (812) away from the sludge storage rack (61). A stabilizing rod (92) is fixedly connected to the middle of the inner cavity of the sludge storage rack (61). A transmission shaft (93) is rotatably connected to the upper surface of the outer surface of the regulating valve (91). The transmission shaft (93) passes through the stabilizing rod (92) and is rotatably connected. The drive module (10) includes a placement rod (101) fixedly connected to the middle of the upper surface of the sludge storage rack (61). A drive motor (102) is symmetrically fixedly connected to the lower surface of the placement rod (101). The output end of the drive motor (102) is fixedly connected to the transmission shaft (93).

7. A high-efficiency central sedimentation device for wastewater treatment according to claim 6, characterized in that, The turbulence structure (11) includes a rotating rod (111) symmetrically rotatably connected to the inner cavity of the sludge storage rack (61) between the regulating valve (91) and the sludge pump (64). Turbulence plates (112) are uniformly fixedly connected to the outer surface of the rotating rod (111). A turbulence driving structure (113) is provided on the rear end face of the sludge storage rack (61). The turbulence driving structure (113) includes a worm gear (1131) symmetrically rotatably connected to one side of the rear end face of the sludge storage rack (61). The rotating rod (111) has a rotating shaft on the rear end face. The mud storage rack (61) is fixedly connected to the two worm gears (1131). The rear end face of the mud storage rack (61) is located between the two worm gears (1131) and is rotatably connected to the worm (1132) through the bracket. The worm gear (1131) and the worm (1132) mesh with each other. The rear end face of the mud storage rack (61) is fixedly connected to the upper part of the worm (1132) and is connected to the turbulence motor (1133). The upper end face of the worm (1132) has a rotating shaft that passes through the bracket and is fixedly connected to the output end of the turbulence motor (1133).

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