Multi-stage deep treatment device for waste water of thermal power plant

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a multistage advanced treatment device for wastewater of a thermal power plant, which comprises a sedimentation tank and a mixing mechanism, a drainage tank is arranged at one end of the sedimentation tank, the mixing mechanism is positioned at the other end of the sedimentation tank and comprises a sewage tank, one end of the sewage tank is fixedly connected with a pump box, and a transition tank is arranged at one end of the sewage tank. And a plurality of water pumps are arranged in the pump machine box. According to the sewage treatment device, sewage is collected through the mixing mechanism, is uniformly mixed with a flocculating agent and is discharged into the sedimentation tank, the influence of sunlight on the flocculating agent is reduced through the shielding mechanism, solid waste pollution in water pollution is subjected to flocculation treatment, a water body is settled through the sedimentation tank, and then solid wastes are settled to the bearing mechanism; and then the bearing mechanism is used for separating the solid waste from a water body in the sedimentation tank, and then the separating mechanism is used for dehydrating the solid waste, so that the moisture of the solid waste discharged out of the sedimentation tank is reduced, transportation is convenient, and the transportation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a multi-stage deep treatment device for thermal power plant wastewater. Background Art

[0002] The sources of wastewater generated by thermal power plants are relatively extensive, and there are many types of wastewater, mainly including ash flushing wastewater, desulfurization wastewater, industrial wastewater, etc. Ash flushing wastewater is one of the main wastewaters in thermal power plants, accounting for nearly half of the total wastewater. It is mainly used to wash furnace slag and dust collector ash discharge, resulting in a relatively high content of solid waste in the water body. When treating polluted water, flocculants are usually mixed with the sewage, so that the solid waste in the sewage is flocculated and then discharged into the sedimentation tank, and the solid waste naturally settles and separates from the water body. However, some flocculants will decompose under light conditions, resulting in changes in their chemical structure and performance, thereby reducing the flocculation effect, which is rather inconvenient; and the settled solid waste will accumulate at the bottom of the sedimentation tank to form sludge, causing solid waste pollution at the bottom of the sedimentation tank. Since the solid waste pollution is mixed with a large amount of water and is in a mud-like state, a sewage discharge pipe and a sludge hopper are usually provided at the bottom of the sedimentation tank. When discharging the solid waste using the sludge hopper and the sewage discharge pipe, since there is a large amount of water in the solid waste and it is in a fluid state, the mud-like solid waste is transported to the working area and dehydrated by a filter press, and then the dehydrated solid waste is reused or directly incinerated. However, the sedimentation tank is mainly used for collecting and treating sewage, which may contain a large amount of pollutants, odors and harmful substances. Therefore, the location of the sedimentation tank is usually arranged far from the working area. The fluid-like solid waste is inconvenient to transport, and pipelines or channels need to be used to transport the mud-like solid waste, resulting in a relatively high cost of transporting the solid waste. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-stage deep treatment device for thermal power plant wastewater to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A multi-stage deep treatment device for thermal power plant wastewater, comprising:

[0006] A sedimentation tank for the natural sedimentation of flocculated impurities as water flows through, a mixing mechanism for mixing a flocculant and water, a shielding mechanism for reducing the influence of sunlight on the flocculant, a supporting mechanism for supporting the sedimented sludge inside the sedimentation tank, and a plurality of separation mechanisms for dewatering the sludge. A drainage tank is provided at one end of the sedimentation tank, and the mixing mechanism is located at the other end of the sedimentation tank. The mixing mechanism includes a sewage tank, and a pump box is fixedly connected to one end of the sewage tank. A transition tank is provided at one end of the sewage tank. A plurality of water pumps are provided inside the pump box. The water outlet end of any one of the water pumps is fixedly connected to a pipe mixer. One end of any one of the pipe mixers is fixedly connected to the transition tank. A liquid inlet pipe is fixedly connected to the top of one end of any one of the pipe mixers. The transition tank is communicated with the sedimentation tank. The shielding mechanism is fixedly sleeved inside the transition tank. The shielding mechanism includes a cover plate, and the cover plate is fixedly sleeved inside the transition tank and is located above the plurality of pipe mixers. A clamping groove is formed on the top surface of the cover plate, and a plurality of closing plates are slidably clamped inside the clamping groove. A plurality of rectangular holes are formed on the top surface of the cover plate, and the plurality of rectangular holes correspond to the plurality of closing plates one by one. The plurality of closing plates are connected to each other through welding columns. One side of any one of the closing plates is fixedly connected to a light shielding plate. A plurality of first hydraulic cylinders are provided on the top of the transition tank. The movable end of any one of the first hydraulic cylinders is fixedly connected to the top surface of the adjacent closing plate. The supporting mechanism is fixedly sleeved inside the sedimentation tank, and the plurality of separation mechanisms are all located inside the sedimentation tank.

[0007] Furthermore, the supporting mechanism includes:

[0008] A frame body, a plurality of sealing plates for supporting sludge, a slide rail and a guide rod. The frame body is fixedly sleeved inside the sedimentation tank and is located below the transition tank. The plurality of sealing plates are arranged in sequence inside the frame body. One side of each of the plurality of sealing plates is rotatably connected between two opposite inner side walls of the frame body. The slide rail is located below the frame body. A plurality of sliders are slidably clamped inside the slide rail, and the plurality of sliders correspond to the plurality of sealing plates one by one. The top end of any one of the sliders is rotatably connected to the other side of the bottom surface of the corresponding sealing plate. The bottom ends of the two guide rods are respectively fixedly connected to both ends of the slide rail. The top ends of the two guide rods both penetrate through the frame body. Two second hydraulic cylinders are provided on the top surface of the sedimentation tank, and the movable ends of the two second hydraulic cylinders are respectively fixedly connected to the two guide rods.

[0009] Furthermore, the separation mechanism includes:

[0010] A pipe body, a connecting plate, a filter housing for centrifugally filtering sludge and water, and a clamping plate. The pipe body is fixedly connected between the two ends inside the sedimentation tank, and the pipe body is located below a plurality of sealing plates. A rectangular opening is formed at the bottom of the outer side wall of the pipe body. The connecting plate is fixedly sleeved inside the rectangular opening. A guiding groove is formed on the top surface of the connecting plate, and a sliding strip is slidably clamped inside the guiding groove. The filter housing is located inside the pipe body. The filter housing is C-shaped, and a piston cylinder is slidably sleeved inside the filter housing. One end of the filter housing is rotatably connected to the other end inside the sedimentation tank. The clamping plate is fixedly connected between the opposite sides of the filter housing. A sliding groove is formed on one side of the clamping plate, and a sliding plate is slidably clamped inside the sliding groove. Water inlet holes for water inlet are formed on one side of each of the sliding plate, the clamping plate, the connecting plate, and the sliding strip. A plurality of convex strips are fixedly connected to one side of the sliding plate, and a plurality of grooves are formed on one side of the sliding strip. The convex strips are slidably clamped inside the adjacent grooves. A plurality of connecting nozzles are formed on one side of the sedimentation tank. One end of the sliding strip is fixedly connected to a pull rod, and one end of each pull rod penetrates through the other end of the sedimentation tank.

[0011] Furthermore, a conduit is fixedly connected to the other end of any one of the filter housings, and each conduit penetrates through one end inside the sedimentation tank.

[0012] Furthermore, a plurality of suction pipes are arranged inside any one of the pipe bodies. One end of each suction pipe penetrates through the other end inside the sedimentation tank and is located outside the sedimentation tank. A plurality of suction holes are formed on the outer side wall of each suction pipe.

[0013] Furthermore, two plate bodies are fixedly connected to the other end of the sedimentation tank, and a rotating shaft is rotatably connected between the two plate bodies. A plurality of winding drums are fixedly sleeved on the outer side wall of the rotating shaft, and the plurality of winding drums correspond to the plurality of pipe bodies one by one. A soft cloth cylinder is fixedly wound on the outer side wall of each winding drum. A plurality of cutting slits are formed on the other end of the sedimentation tank, and the plurality of cutting slits correspond to the plurality of soft cloth cylinders one by one. Each soft cloth cylinder penetrates through the corresponding cutting slit and is located inside the corresponding pipe body. One end of each soft cloth cylinder is fixedly connected to the adjacent piston cylinder. A power box is fixedly connected to one side of one of the plate bodies, and a power motor is arranged inside the power box. The motor shaft of the power motor is fixedly connected to one end of the rotating shaft.

[0014] Furthermore, two fixing plates are fixedly connected to one end of the sedimentation tank, and a rotating pipe is rotatably connected between the two fixing plates. A plurality of coil pipe drums are fixedly sleeved on the outer side wall of the rotating pipe, and the plurality of coil pipe drums correspond to the plurality of pipe bodies one by one. A connecting pipe is fixedly coiled on the outer side wall of each coil pipe drum. One end of each connecting pipe penetrates through one end of the sedimentation tank and is fixedly sleeved inside the adjacent piston cylinder. An air inlet pipe is fixedly connected to one end inside the rotating pipe, and a connecting head is rotatably connected to one end of the air inlet pipe. A motor box is fixedly connected to one side of one of the fixing plates, and a servo motor is arranged inside the motor box. The motor shaft of the servo motor is fixedly connected to one end of the rotating pipe. The other end of each connecting pipe penetrates through the adjacent coil pipe drum and the rotating pipe, and the other end of each connecting pipe is fixedly connected to the air inlet pipe.

[0015] Furthermore, a support plate is fixedly connected between the two fixed plates, and a plurality of driving boxes are fixedly connected to the top surface of the support plate. The plurality of driving boxes correspond to the plurality of conduits one by one. A driving motor is arranged inside any one of the driving boxes. A gear is fixedly connected to the motor shaft of any one of the driving motors. A toothed ring is fixedly sleeved on the outer side wall of any one of the conduits. Any one of the gears meshes with the corresponding toothed ring. An annular plug is slidably sleeved on the outer side wall of any one of the connecting pipes. A plurality of first electric push rods are fixedly connected to the bottom surface of the support plate. The movable end of any one of the first electric push rods is fixedly connected to the adjacent annular plug. Any one of the annular plugs is movably clamped inside the adjacent conduit.

[0016] Furthermore, a plurality of card frames are fixedly connected to the other end of the sedimentation tank. The plurality of card frames correspond to the plurality of soft cloth cylinders one by one. Any one of the soft cloth cylinders is located inside the corresponding card frame. An insertion port is formed on the top surface of any one of the card frames. A pressing plate is arranged at the other end of the sedimentation tank. A plurality of second electric push rods are arranged at the other end of the sedimentation tank. The movable end of any one of the second electric push rods is fixedly connected to the pressing plate. A plurality of clamping plates are fixedly connected to the bottom surface of the pressing plate. Any one of the clamping plates is slidably inserted inside the adjacent insertion port. A cylinder is fixedly connected to the bottom surface of any one of the card frames. The movable end of any one of the cylinders is fixedly connected to the adjacent pull rod.

[0017] Furthermore, a plurality of aeration pipes are arranged inside the transition tank.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By using the mixing mechanism to collect sewage, uniformly mix it with the flocculant, and then discharge it into the sedimentation tank, and using the shielding mechanism to reduce the influence of sunlight on the flocculant, so as to perform flocculation treatment on the solid waste pollution in the water pollution. Then, after the water body is precipitated in the sedimentation tank, the solid waste precipitates onto the supporting mechanism. Then, the supporting mechanism is used to separate the solid waste from the water body in the sedimentation tank. Then, the separating mechanism is used to dehydrate the solid waste, so as to reduce the water content of the solid waste discharged from the sedimentation tank, which is convenient for transportation, thereby reducing the transportation cost.

[0020] 2. By using the water pump in the pump box to fill the sewage collected in the sewage tank into the pipe mixer, and injecting the flocculant through the liquid inlet pipe, the flocculant and the sewage are mixed inside the pipe mixer, so as to perform flocculation treatment on the solid waste in the polluted water. Then, the water body enters the transition tank and flows into the sedimentation tank. Bubbles are generated through the aeration pipe to stir the water body in the transition tank, improving the flocculation effect of the flocculant. And the first hydraulic cylinder can be started to drive the closing plate and the light-shielding plate to move to cover the rectangular hole, thereby reducing the direct sunlight on the water body in the transition tank and reducing the influence of sunlight on the flocculant.

[0021] 3. Start the second hydraulic cylinder to drive the slide rail to move downward by means of a pull rod, so that the slider drives the sealing plate to rotate, causing the water flow in the sedimentation tank to wash the solid waste deposited on the sealing plate into the space below the frame. Then, reset the sealing plate and inject gas into the space below the frame, so that the gas squeezes the water body in the space below the frame into the interior of multiple filter cartridges. Then, start the drive motor to drive the conduit and the filter cartridges to rotate through the gear and the toothed ring, causing the filter cartridges to generate centrifugal force, intercepting the solid waste in the filter cartridges, and separating the water body into the interior of the pipe body, and using a suction pipe to extract the separated water body;

[0022] 4. Inject gas into the soft cloth cylinder through the connecting pipe. By starting the servo motor and the power motor, the connecting pipe and the soft cloth cylinder drive the piston cylinder to move, discharging the solid waste in the filter cartridge through the conduit out of the sedimentation tank, and filling the interior of the soft cloth cylinder to fill the filter cartridge. Then, extract the gas inside the soft cloth cylinder through the connecting pipe, creating a negative pressure inside the filter cartridge, causing the air inside the pipe body to enter the filter cartridge through the filter cartridge to perform a backwashing treatment on the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is an exploded view of the structure of the mixing mechanism and the shielding mechanism in the present invention;

[0025] Figure 3 is a schematic diagram of the positional relationship among the sedimentation tank, the separation mechanism and the supporting mechanism in the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the supporting mechanism in the present invention;

[0027] Figure 5 is a schematic diagram of the usage state of the supporting mechanism in the present invention;

[0028] Figure 6 is a schematic diagram of the structure of the separation mechanism in the present invention;

[0029] Figure 7 is a schematic plan view of the internal structure of the pipe body in the present invention;

[0030] Figure 8 is an exploded view of the internal structure of the pipe body in the present invention;

[0031] Figure 9 is an exploded view of the structure of the separation mechanism in the present invention;

[0032] Figure 10 is a schematic diagram of the structure of the clamping frame and the clamping plate in the present invention;

[0033] Figure 11 is a schematic sectional view of the soft cloth cylinder in the present invention;

[0034] Figure 12 It is a schematic cross-sectional view of the positional relationship among the intake pipe, the connecting pipe, and the rotating pipe in the present invention.

[0035] In the figure: 100, sedimentation tank; 101, connecting nozzle; 110, drainage tank; 200, mixing mechanism; 210, sewage tank; 220, pump box; 230, pipe mixer; 231, liquid inlet pipe; 240, transition tank; 241, aeration pipe; 300, shielding mechanism; 310, cover plate; 320, closing plate; 321, light-shielding plate; 400, supporting mechanism; 410, frame; 420, sealing plate; 430, slide rail; 431, slider; 440, guide rod; 500, separation mechanism; 501, rotating pipe; 502, intake pipe; 503, connector; 504, motor box; 505, drive box; 510, pipe body; 520, connecting plate; 521, slide bar; 522, pull rod; 530, filter housing; 531, piston cylinder; 532, conduit; 540, clamping plate; 541, slide plate; 550, suction pipe; 560, coiled pipe cylinder; 561, connecting pipe; 562, annular plug; 570, winding drum; 571, soft cloth cylinder; 572, power box; 580, clamping frame; 590, pressing plate; 591, clamping plate. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 - 12, in the embodiment of the present invention, a multi-stage deep treatment device for wastewater in a thermal power plant includes a sedimentation tank 100 for allowing water flow to pass through and enabling flocculated impurities to naturally settle, a mixing mechanism 200 for mixing a flocculant and water flow, a shielding mechanism 300 for reducing the influence of sunlight on the flocculant, a supporting mechanism 400 for supporting the sediment sludge inside the sedimentation tank 100, and a plurality of separation mechanisms 500 for dewatering the sludge. A drainage tank 110 is provided at one end of the sedimentation tank 100, and the mixing mechanism 200 is located at the other end of the sedimentation tank 100. The mixing mechanism 200 includes a sewage tank 210, and a pump box 220 is fixedly connected to one end of the sewage tank 210. A transition tank 240 is provided at one end of the sewage tank 210. A plurality of water pumps are provided inside the pump box 220. The water outlet end of any one water pump is fixedly connected to a pipe mixer 230. One end of any one pipe mixer 230 is fixedly connected to the transition tank 240. A liquid inlet pipe 231 is fixedly connected to the top of one end of any one pipe mixer 230. The transition tank 240 is communicated with the sedimentation tank 100. The shielding mechanism 300 is fixedly sleeved inside the transition tank 240. The shielding mechanism 300 includes a cover plate 310, and the cover plate 310 is fixedly sleeved inside the transition tank 240 and is located above the plurality of pipe mixers 230. A card slot is provided on the top surface of the cover plate 310, and a plurality of closing plates 320 are slidably clamped inside the card slot. A plurality of rectangular holes are provided on the top surface of the cover plate 310, and the plurality of rectangular holes correspond to the plurality of closing plates 320 one by one. The plurality of closing plates 320 are connected to each other through welding columns. A light shielding plate 321 is fixedly connected to one side of any one closing plate 320. A plurality of first hydraulic cylinders are provided on the top of the transition tank 240. The movable end of any one first hydraulic cylinder is fixedly connected to the top surface of the adjacent closing plate 320. The supporting mechanism 400 is fixedly sleeved inside the sedimentation tank 100, and the plurality of separation mechanisms 500 are all located inside the sedimentation tank 100.

[0038] Specifically, the sedimentation tank 100 is a horizontal flow sedimentation tank. The sewage tank 210 is used to collect sewage, and then a water pump is used to transport the sewage to the pipeline mixer 230, and a flocculant is added at the liquid inlet pipe 231. The flocculant and the sewage are evenly mixed inside the pipeline mixer 230 and discharged to the transition tank 240. After mixing, the flocculant flocculates the solid waste inside the sewage in the pipeline mixer 230 and the transition tank 240, so as to treat the solid waste pollution in the water pollution. Then, the sewage in the transition tank 240 evenly disperses and flows into the inside of the sedimentation tank 100 through the perforated wall on the sedimentation tank 100. When the water flow flows inside the sedimentation tank 100, the flocculated impurities in the water flow naturally settle on the supporting mechanism 400 to form sludge, so as to settle the solid waste pollution from the sewage and treat the solid waste pollution. The water flow naturally flows into the drainage tank 110 for the next process. When flocculating the solid waste in the sewage, multiple first hydraulic cylinders can be started to drive multiple closing plates 320 to move synchronously to block adjacent rectangular holes, so as to seal the inside of the transition tank 240 and reduce the influence of sunlight on the flocculant. And multiple first hydraulic cylinders can be started to drive multiple closing plates 320 to move away from adjacent rectangular holes, and multiple light-shielding plates 321 are located above adjacent rectangular holes, so that air can enter the transition tank 240 from the space between the light-shielding plates 321 and the rectangular holes, while the sunlight is blocked by the light-shielding plates 321, thus reducing the influence of sunlight on the flocculant.

[0039] Embodiment 1

[0040] As Figures 3 - 5 shown, in this embodiment, the supporting mechanism 400 includes:

[0041] A frame body 410, multiple sealing plates 420 for supporting sludge, a slide rail 430 and a guide rod 440. The frame body 410 is fixedly sleeved inside the sedimentation tank 100, and the frame body 410 is located below the transition tank 240. Multiple sealing plates 420 are arranged in sequence inside the frame body 410. One side of each of the multiple sealing plates 420 is rotatably connected between two opposite inner side walls of the frame body 410. The slide rail 430 is located below the frame body 410. Multiple sliders 431 are slidably clamped inside the slide rail 430, and the multiple sliders 431 correspond to the multiple sealing plates 420 one by one. The top end of any slider 431 is rotatably connected to the other side of the bottom surface of the corresponding sealing plate 420. The bottom ends of two guide rods 440 are respectively fixedly connected to both ends of the slide rail 430. The top ends of the two guide rods 440 both penetrate through the frame body 410. Two second hydraulic cylinders are arranged on the top surface of the sedimentation tank 100, and the movable ends of the two second hydraulic cylinders are respectively fixedly connected to the two guide rods 440.

[0042] In this embodiment, the solid waste naturally settled inside the sedimentation tank 100 can fall onto a plurality of sealing plates 420 to form sludge. Rubber covering layers are provided on the surfaces of the plurality of sealing plates 420. When the plurality of sealing plates 420 are arranged side by side, water flow is not likely to pass through the gaps between the sealing plates 420, improving the sealing effect of the sealing plates 420. Then, when it is necessary to clean the sludge and other solid waste contaminants deposited on the plurality of sealing plates 420, the second hydraulic cylinder can be started to drive the slide rail 430 to move downward, so that the slide rail 430 pulls the plurality of sealing plates 420 to rotate and tilt through the slider 431. Thus, by means of the water flow inside the sedimentation tank 100 to wash the inclined sealing plates 420, the solid waste on the sealing plates 420 is naturally washed into the lower part of the frame body 410. Then, the second hydraulic cylinder is started to drive the slide rail 430 to reset, so that the slide rail 430 pushes the plurality of sealing plates 420 to reset through the slider 431.

[0043] As Figures 6 - 9 shown, in this embodiment, the separation mechanism 500 includes:

[0044] A pipe body 510, a connecting plate 520, a filter housing 530 for centrifugally filtering sludge and water, and a clamping plate 540. The pipe body 510 is fixedly connected between the two ends inside the sedimentation tank 100, and the pipe body 510 is located below the plurality of sealing plates 420. A rectangular opening is formed at the bottom of the outer side wall of the pipe body 510. The connecting plate 520 is fixedly sleeved inside the rectangular opening. A guiding groove is formed on the top surface of the connecting plate 520, and a sliding strip 521 is slidably clamped inside the guiding groove. The filter housing 530 is located inside the pipe body 510. The filter housing 530 is C-shaped, and a piston cylinder 531 is slidably sleeved inside the filter housing 530. One end of the filter housing 530 is rotatably connected to the other end inside the sedimentation tank 100. The clamping plate 540 is fixedly connected between the opposite sides of the filter housing 530. A sliding groove is formed on one side of the clamping plate 540, and a sliding plate 541 is slidably clamped inside the sliding groove. Water inlet holes for water inlet are formed on one side of the sliding plate 541, the clamping plate 540, the connecting plate 520, and the sliding strip 521. A plurality of protruding strips are fixedly connected to one side of the sliding plate 541, and a plurality of grooves are formed on one side of the sliding strip 521. The protruding strips are slidably clamped inside the adjacent grooves. A plurality of connecting nozzles 101 are formed on one side of the sedimentation tank 100. One end of the sliding strip 522 is fixedly connected to a pull rod 522, and one end of the pull rod 522 penetrates through the other end of the sedimentation tank 100. One end of any one of the filter housings 530 is fixedly connected to a conduit 532, and any one of the conduits 532 penetrates through one end inside the sedimentation tank 100. A plurality of suction pipes 550 are arranged inside any one of the pipe bodies 510. One end of any one of the suction pipes 550 penetrates through the other end inside the sedimentation tank 100 and is located outside the sedimentation tank 100. A plurality of suction holes are formed on the outer side wall of any one of the suction pipes 550.

[0045] In specific implementation, when solid waste such as sludge enters the space below the frame 410, a hose is connected to the connecting pipe port 101, and gas is injected into the sedimentation tank 100 through the hose. The connecting pipe port 101 is located below the frame 410, so that the gas accumulated in the hose naturally floats up and abuts against the frame 410, and the gas squeezes the water below the frame 410. The filter housing 530 is made of multi-layer filter material and is cut from an existing filter cartridge. The filter housing 530 is rotated to make the card plate 540 abut against the adjacent connecting plate 520. The convex strip on the slide plate 541 is rotated to naturally snap into the groove on the adjacent slide bar 521, and then the slide bar 521 is pulled by the pull rod 522, so that the slide bar 521 pulls the adjacent slide plate 541 to move synchronously through the groove and the convex strip, so that the connecting plate 520, the slide bar 521, the slide plate 541 and the multiple water inlet holes on the card plate 540 are connected, and then as the air below the frame 410 squeezes the water body, the water body carries the sludge together and enters the filter housing 530 through the water inlet hole, and then the pull rod 522 is pulled. 2, so that the water inlet holes on the slide bar 521 and the slide plate 541 are offset from the water inlet holes on the clamping plate 540 and the connecting plate 520, so that the water below the frame 410 no longer enters the filter housing 530, and then the filter housing 530 is rotated to generate centrifugal force, so that the solid waste in the filter housing 530 is intercepted by the filter housing 530, and the water in the filter housing 530 is thrown into the tube body 510 due to the centrifugal force, and then the solid waste dehydrated in the filter housing 530 is pushed out of the discharge port through the movement of the piston cylinder 531. The sludge is discharged from the sedimentation tank 100, and a suction pump is used to connect the suction pipe 550 and the drainage tank 110 through a pipeline, so that the suction pipe 550 uses the suction hole to draw out the water inside the tube body 510 and discharge it into the drainage tank 110 through the conduit 532. In this way, the sludge and other solid wastes have a lower moisture content when they are discharged from the sedimentation tank 100, which is convenient for users to transport the sludge and reduce transportation costs. The sludge and other solid wastes are then incinerated or reused, thereby treating the solid waste pollution inside the sedimentation tank 100.

[0046] like Figure 3 , Figure 6 and Figures 10 - 12As shown, in this embodiment, two plate bodies are fixedly connected to the other end of the sedimentation tank 100, and a rotating shaft is rotatably connected between the two plate bodies. A plurality of winding drums 570 are fixedly sleeved on the outer side wall of the rotating shaft, and the plurality of winding drums 570 correspond to the plurality of pipe bodies 510 one by one. A soft cloth cylinder 571 is fixedly wound on the outer side wall of any one of the winding drums 570. A plurality of cutting slits are formed in the other end of the sedimentation tank 100, and the plurality of cutting slits correspond to the plurality of soft cloth cylinders 571 one by one. Any one of the soft cloth cylinders 571 passes through the corresponding cutting slit and is located inside the corresponding pipe body 510. One end of any one of the soft cloth cylinders 571 is fixedly connected to the adjacent piston cylinder 531. A power box 572 is fixedly connected to one side of one of the plate bodies, and a power motor is arranged inside the power box 572. The motor shaft of the power motor is fixedly connected to one end of the rotating shaft. Two fixing plates are fixedly connected to one end of the sedimentation tank 100, and a rotating pipe 501 is rotatably connected between the two fixing plates. A plurality of coil winding drums 560 are fixedly sleeved on the outer side wall of the rotating pipe 501, and the plurality of coil winding drums 560 correspond to the plurality of pipe bodies 510 one by one. A connecting pipe 561 is fixedly coiled on the outer side wall of any one of the coil winding drums 560. One end of any one of the connecting pipes 561 passes through one end of the sedimentation tank 100 and is fixedly sleeved inside the adjacent piston cylinder 531. One end inside the rotating pipe 501 is fixedly connected to an air inlet pipe 502, and one end of the air inlet pipe 502 is rotatably connected to a connection head 503. A motor box 504 is fixedly connected to one side of one of the fixing plates, and a servo motor is arranged inside the motor box 504. The motor shaft of the servo motor is fixedly connected to one end of the rotating pipe 501. The other end of any one of the connecting pipes 561 passes through the adjacent coil winding drum 560 and the rotating pipe 501, and the other end of any one of the connecting pipes 561 is fixedly connected to the air inlet pipe 502.

[0047] During specific implementation, the soft cloth tube 571 is made of airtight plastic material, the cutting seam is narrow, and the connecting tube 561 is a plastic hose with a relatively thick tube wall, so that the tube wall of the connecting tube 561 is not easily pressed and dented. The connecting tube 561 is coiled in a spiral shape inside the adjacent coil tube 560. By connecting the connector 503 with an air pump, gas enters the interiors of multiple connecting tubes 561 through the air inlet tube 502. When the gas in the connecting tube 561 is injected into the adjacent soft cloth tube 571, the soft cloth tube 571 expands, causing the soft cloth tube 571 located inside the filter housing 530 to expand and abut against the filter housing 530 and the clamping plate 540. Then, by starting the servo motor and the power motor, the rotating tube 501 and the rotating shaft rotate, driving the adjacent coil tube 560 and the winding drum 570 to rotate, driving the adjacent connecting tube 561 and the soft cloth tube 571 to move. Thus, through the movement of the soft cloth tube 571 and the connecting tube 561, the adjacent piston cylinder 531 is pulled to move. When the piston cylinder 531 moves, the solid waste dehydrated inside the filter housing 530 can be scraped out of the filter housing 530 through the piston cylinder 531 and discharged through the conduit 532, and the soft cloth tube 571 inflated by injecting gas fills the interior of the filter housing 530. After the solid waste is discharged from the filter housing 530, the conduit 532 can be blocked, and then the servo motor and the power motor are started to drive the piston cylinder 531 and the soft cloth tube 571 inflated by injecting gas to move in a direction away from the conduit 532. Since the interior of the filter housing 530 is filled with the soft cloth tube 571, air is not easily introduced into the filter housing 530. Then, the part of the soft cloth tube 571 located outside the sedimentation tank 100 is clamped, and then the gas inside the soft cloth tube 571 is sucked out by the connecting tube 561, so that the gas inside the soft cloth tube 571 is pumped out, thereby generating a negative pressure inside the filter housing 530, so that the air inside the tube body 510 enters the filter housing 530 through the filter housing 530, and the filter housing 530 is backflushed to reduce the blockage of the filter housing 530.

[0048] As Figure 3 , Figure 6 and Figure 10As shown, in this embodiment, a support plate is fixedly connected between two fixing plates, and a plurality of driving boxes 505 are fixedly connected to the top surface of the support plate. The plurality of driving boxes 505 correspond to the plurality of conduits 532 one by one. A driving motor is arranged inside any one of the driving boxes 505. A gear is fixedly connected to the motor shaft of any one of the driving motors. A toothed ring is fixedly sleeved on the outer side wall of any one of the conduits 532. Any one of the gears meshes with the corresponding toothed ring. An annular plug 562 is slidably sleeved on the outer side wall of any one of the connecting pipes 561. A plurality of first electric push rods are fixedly connected to the bottom surface of the support plate. The movable end of any one of the first electric push rods is fixedly connected to the adjacent annular plug 562. Any one of the annular plugs 562 is movably clamped inside the adjacent conduit 532. The other end of the sedimentation tank 100 is fixedly connected with a plurality of card frames 580, and the plurality of card frames 580 correspond to the plurality of soft cloth cylinders 571 one by one. Any one of the soft cloth cylinders 571 is located inside the corresponding card frame 580. An insertion port is formed on the top surface of any one of the card frames 580, and a pressing plate 590 is arranged at the other end of the sedimentation tank 100. A plurality of second electric push rods are arranged at the other end of the sedimentation tank 100. The movable end of any one of the second electric push rods is fixedly connected to the pressing plate 590. A plurality of clamping plates 591 are fixedly connected to the bottom surface of the pressing plate 590. Any one of the clamping plates 591 is slidably inserted into the adjacent insertion port. A cylinder is fixedly connected to the bottom surface of any one of the card frames 580. The movable end of any one of the cylinders is fixedly connected to the adjacent pull rod 522.

[0049] During specific implementation, the clamping plate 591 is made of rubber material. By starting the second electric push rod, the pressing plate 590 can be driven to move, so that the plurality of clamping plates 591 clamp and seal the adjacent soft cloth cylinder 571. By starting the first electric push rod, the annular plug 562 can be driven to be inserted into the adjacent conduit 532 to seal the conduit 532. By starting the driving motor, the adjacent conduit 532 and the filter housing 530 can be driven to rotate through the gear and the toothed ring to generate centrifugal force. By starting the cylinder, the adjacent pull rod 522 can be driven to move. The second electric push rod, the first electric push rod, the driving motor and the cylinder can be respectively controlled by the controller, thereby improving the automation degree of the treatment process and facilitating the use by the user.

[0050] Embodiment Two

[0051] On the basis of Embodiment One, by arranging the aeration pipe 241, it is convenient to improve the mixing effect of the flocculant and the sewage.

[0052] As Figure 2 shown, in this embodiment, a plurality of aeration pipes 241 are arranged inside the transition tank 240.

[0053] In specific implementation, when treating water pollution, gas can be introduced through the aeration pipe 241 to form bubbles to stir the water body, thereby improving the flocculation effect of the flocculant on the sewage. And when treating the pollution of solid waste inside the sedimentation tank 100, since the water body inside the sedimentation tank 100 will wash the water flow inside the sealing plate 420 and enter the space below the frame body 410, the water level in the sedimentation tank 100 will drop. At this time, the rectangular hole on the cover plate 310 can be closed by the closing plate 320 to make the whole transition tank 240 closed. Then, gas is injected into the closed transition tank 240 through the aeration pipe 241 to squeeze the water body inside the transition tank 240, improve the speed of the water body inside the transition tank 240 discharging to the sedimentation tank 100 to replenish water for the sedimentation tank 100. At the same time, the delivery power of the water pump in the pump box 220 is increased, so as to facilitate the replenishment of water for the sedimentation tank 100.

[0054] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0055] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and 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 multi-stage advanced treatment device for wastewater in a thermal power plant, characterized in that Comprising: A sedimentation tank (100) with a drainage tank (110) provided at one end; A mixing mechanism (200) located at the other end of the sedimentation tank (100). The mixing mechanism (200) includes a sewage tank (210). One end of the sewage tank (210) is fixedly connected to a pump box (220). A transition tank (240) is provided at one end of the sewage tank (210). A plurality of water pumps are provided inside the pump box (220). The water outlet end of any one water pump is fixedly connected to a pipe mixer (230). One end of any one pipe mixer (230) is fixedly connected to the transition tank (240). The top of one end of any one pipe mixer (230) is fixedly connected to a liquid inlet pipe (231). The transition tank (240) is communicated with the sedimentation tank (100); A shielding mechanism (300) fixedly sleeved inside the transition tank (240). The shielding mechanism (300) includes a cover plate (310) fixedly sleeved inside the transition tank (240) and located above a plurality of pipe mixers (230). A card slot is formed on the top surface of the cover plate (310), and a plurality of closing plates (320) are slidably clamped inside the card slot. A plurality of rectangular holes are formed on the top surface of the cover plate (310), and the plurality of rectangular holes correspond to the plurality of closing plates (320) one by one. The plurality of closing plates (320) are connected to each other through welding columns. A light shielding plate (321) is fixedly connected to one side of any one closing plate (320). A plurality of first hydraulic cylinders are provided on the top of the transition tank (240). The movable end of any one first hydraulic cylinder is fixedly connected to the top surface of the adjacent closing plate (320); A supporting mechanism (400) fixedly sleeved inside the sedimentation tank (100); A plurality of separation mechanisms (500), all located inside the sedimentation tank (100).

2. The multi-stage advanced treatment device for thermal power plant wastewater according to claim 1, wherein A plurality of aeration pipes (241) are provided inside the transition tank (240).

3. The multi-stage deep treatment device for thermal power plant wastewater according to claim 1 or 2, characterized in that, The supporting mechanism (400) includes: A frame body (410) fixedly sleeved inside the sedimentation tank (100), and the frame body (410) is located below the transition tank (240); A plurality of sealing plates (420) are sequentially arranged inside the frame body (410). One side of the plurality of sealing plates (420) is rotatably connected between two opposite inner side walls of the frame body (410); A slide rail (430) is located below the frame body (410). A plurality of sliders (431) are slidably clamped inside the slide rail (430), and the plurality of sliders (431) correspond to the plurality of sealing plates (420) one by one. The top end of any one slider (431) is rotatably connected to the other side of the bottom surface of the corresponding sealing plate (420); Two guide rods (440) are fixedly connected to both ends of the slide rail (430) at the bottom end respectively. The top ends of the two guide rods (440) penetrate through the frame body (410). Two second hydraulic cylinders are provided on the top surface of the sedimentation tank (100), and the movable ends of the two second hydraulic cylinders are fixedly connected to the two guide rods (440) respectively.

4. The multi-stage advanced treatment device for thermal power plant wastewater according to claim 3, characterized in that, The separation mechanism (500) includes: The pipe body (510) is fixedly connected between the two ends inside the sedimentation tank (100), and the pipe body (510) is located below a plurality of sealing plates (420). A rectangular opening is formed at the bottom of the outer side wall of the pipe body (510). The connecting plate (520) is fixedly sleeved inside the rectangular opening. A guiding groove is formed on the top surface of the connecting plate (520), and a sliding bar (521) is slidably clamped inside the guiding groove. The filter shell (530) is located inside the pipe body (510). The filter shell (530) is C-shaped, and a piston cylinder (531) is slidably sleeved inside the filter shell (530). One end of the filter shell (530) is rotatably connected to the other end inside the sedimentation tank (100). The clamping plate (540) is fixedly connected between the opposite sides of the filter shell (530). A sliding groove is formed on one side of the clamping plate (540), and a sliding plate (541) is slidably clamped inside the sliding groove. Water inlet holes for water inlet are formed on one sides of the sliding plate (541), the clamping plate (540), the connecting plate (520) and the sliding bar (521). A plurality of convex strips are fixedly connected to one side of the sliding plate (541), and a plurality of grooves are formed on one side of the sliding bar (521). The convex strips are slidably clamped inside adjacent grooves. A plurality of connecting nozzles (101) are formed on one side of the sedimentation tank (100). One end of the sliding bar (522) is fixedly connected to one end of the sliding bar (521), and one end of each of the pull rods (522) penetrates through the other end of the sedimentation tank (100).

5. The multi-stage deep treatment device for thermal power plant wastewater according to claim 4, characterized in that, The other end of any one of the filter shells (530) is fixedly connected to a conduit (532), and any one of the conduits (532) penetrates through one end inside the sedimentation tank (100).

6. The multi-stage advanced treatment device for thermal power plant wastewater according to claim 5, characterized in that, A plurality of suction pipes (550) are arranged inside any one of the pipe bodies (510). One end of any one of the suction pipes (550) penetrates through the other end inside the sedimentation tank (100) and is located outside the sedimentation tank (100). A plurality of suction holes are formed on the outer side wall of any one of the suction pipes (550).

7. The multi-stage advanced treatment device for thermal power plant wastewater according to claim 6, wherein, Two plate bodies are fixedly connected to the other end of the sedimentation tank (100), and a rotating shaft is rotatably connected between the two plate bodies. A plurality of winding drums (570) are fixedly sleeved on the outer side wall of the rotating shaft, and the plurality of winding drums (570) correspond to the plurality of pipe bodies (510) one by one. A soft cloth cylinder (571) is fixedly wound on the outer side wall of any one of the winding drums (570). A plurality of cutting slits are formed on the other end of the sedimentation tank (100), and the plurality of cutting slits correspond to the plurality of soft cloth cylinders (571) one by one. Any one of the soft cloth cylinders (571) penetrates through the corresponding cutting slit and is located inside the corresponding pipe body (510). One end of any one of the soft cloth cylinders (571) is fixedly connected to the adjacent piston cylinder (531). A power box (572) is fixedly connected to one side of one of the plate bodies, and a power motor is arranged inside the power box (572). The motor shaft of the power motor is fixedly connected to one end of the rotating shaft.

8. The multi-stage deep treatment device for thermal power plant wastewater according to claim 7, wherein, One end of the sedimentation tank (100) is fixedly connected with two fixing plates, and a rotating pipe (501) is rotatably connected between the two fixing plates. A plurality of coiled pipe cylinders (560) are fixedly sleeved on the outer side wall of the rotating pipe (501), and the plurality of coiled pipe cylinders (560) correspond to a plurality of pipe bodies (510) one by one. A connecting pipe (561) is fixedly coiled on the outer side wall of any one coiled pipe cylinder (560). One end of any connecting pipe (561) penetrates through one end of the sedimentation tank (100) and is fixedly sleeved inside the adjacent piston cylinder (531). One end inside the rotating pipe (501) is fixedly connected with an air inlet pipe (502), and one end of the air inlet pipe (502) is rotatably connected with a connecting head (503). One side of one fixing plate is fixedly connected with a motor box (504), and a servo motor is arranged inside the motor box (504). The motor shaft of the servo motor is fixedly connected with one end of the rotating pipe (501). The other end of any connecting pipe (561) penetrates through the adjacent coiled pipe cylinder (560) and the rotating pipe (501), and the other end of any connecting pipe (561) is fixedly connected with the air inlet pipe (502).

9. The multi-stage deep treatment device for thermal power plant wastewater according to claim 8, wherein, A support plate is fixedly connected between the two fixing plates, and a plurality of driving boxes (505) are fixedly connected to the top surface of the support plate. The plurality of driving boxes (505) correspond to a plurality of guide pipes (532) one by one. A driving motor is arranged inside any one driving box (505). A gear is fixedly connected to the motor shaft of any one driving motor. A toothed ring is fixedly sleeved on the outer side wall of any one guide pipe (532). Any gear is meshed with the corresponding toothed ring. An annular plug (562) is slidably sleeved on the outer side wall of any connecting pipe (561). A plurality of first electric push rods are fixedly connected to the bottom surface of the support plate. The movable end of any first electric push rod is fixedly connected with the adjacent annular plug (562). Any annular plug (562) is movably clamped inside the adjacent guide pipe (532).

10. The multi-stage deep treatment device for thermal power plant wastewater according to claim 9, characterized in that, A plurality of clamping frames (580) are fixedly connected to the other end of the sedimentation tank (100), and the plurality of clamping frames (580) correspond to a plurality of soft cloth cylinders (571) one by one. Any soft cloth cylinder (571) is located inside the corresponding clamping frame (580). An insertion opening is formed in the top surface of any clamping frame (580), and a pressing plate (590) is arranged at the other end of the sedimentation tank (100). A plurality of second electric push rods are arranged at the other end of the sedimentation tank (100). The movable end of any second electric push rod is fixedly connected with the pressing plate (590). A plurality of clamping plates (591) are fixedly connected to the bottom surface of the pressing plate (590). Any clamping plate (591) is slidably inserted into the adjacent insertion opening. A cylinder is fixedly connected to the bottom surface of any clamping frame (580). The movable end of any cylinder is fixedly connected with the adjacent pull rod (522).

Images