Reclaimed water wetland ecological purification system

Abstract

The present application relates to a reclaimed water wetland ecological purification system, which relates to the technical field of sewage treatment. It includes a sedimentation tank, a regulating tank, a primary purification tank and an ecological purification tank. The sedimentation tank, the regulating tank, the primary purification tank and the ecological purification tank are connected and arranged through valve pipes between adjacent ones. A cleaning component for cleaning the sludge in the sewage is provided in the sedimentation tank. A feeding component for containing microorganisms and a floating component for planting emergent plants are provided in the primary purification tank. An ecological factor for purifying water quality is provided in the ecological purification tank. The present application has the effect of reducing the impact of sewage on the wetland ecological purification system and effectively avoiding the damage to the wetland ecological purification system caused by sewage.

Description

Technical Field

[0001] This application relates to the technical field of sewage treatment, and particularly to a reclaimed water wetland ecological purification system. Background Art

[0002] In sewage treatment, sewage is usually introduced into a wetland production system, and the sewage is purified by microorganisms and plants in the wetland ecosystem to form reclaimed water. The reclaimed water can be reused for groundwater recharge, industrial water, agricultural, forestry and animal husbandry water, urban non-drinking water, landscape environment water, etc.

[0003] When sewage is introduced into the wetland ecosystem, since the amount of sewage treated by the wetland ecosystem is limited, if sewage is directly introduced into the wetland ecological purification system, it will cause the death of plants and animals, thus damaging the wetland ecological purification system. Summary of the Invention

[0004] In order to improve the problem that the wetland ecological purification system is damaged due to the direct introduction of sewage into the wetland ecological purification system, this application provides a reclaimed water wetland ecological purification system.

[0005] A reclaimed water wetland ecological purification system provided by this application adopts the following technical solutions:

[0006] A reclaimed water wetland ecological purification system includes a sedimentation tank, a regulating tank, a primary purification tank and an ecological purification tank. The sedimentation tank, the regulating tank, the primary purification tank and the ecological purification tank are connected by valve pipes between adjacent ones. A cleaning component for cleaning the sludge in the sewage is arranged in the sedimentation tank. A feeding component for containing microorganisms and a floating component for planting emergent plants are arranged in the primary purification tank. An ecological factor for purifying water quality is arranged in the ecological purification tank.

[0007] By adopting the above technical solutions, when purifying sewage discharged into the wetland ecological purification system, the sewage is first introduced into the sedimentation tank. Then, sediments such as sludge and eggs in the sewage precipitate in the sedimentation tank. Then, the supernatant is taken and discharged into the regulating tank to adjust the pH value of the sewage. The lower-layer sediment is cleaned out of the sedimentation tank by the cleaning component. Then, the sewage is introduced into the primary purification tank. Microorganisms are put into the primary purification tank through the feeding component. The microorganisms decompose the organic matter in the sewage and absorb nitrogen and phosphorus. Then, the emergent plants on the floating component absorb heavy metal ions in the sewage, thereby reducing the pollution degree of the sewage. Then, the sewage in the primary purification tank is introduced into the ecological purification tank, and the sewage is purified by the ecological factor, so that the sewage is purified into reclaimed water. Compared with the method of directly discharging sewage into the wetland ecological purification system, this solution can reduce the impact of sewage on the wetland ecological purification system more effectively, thus effectively avoiding damage to the wetland ecological purification system caused by sewage.

[0008] In a specific feasible implementation, the cleaning component includes a support plate, a pusher, and a slurry pump. A support rack is provided on the sedimentation tank. The support plate is slidably arranged with the support rack. A collection box is provided on the support plate. The pusher is arranged on the support plate and is used to transport sludge to the collection box. A sludge suction hose is provided at the adsorption port of the slurry pump. The sludge suction hose is inserted into the bottom of the collection box and is communicated with the collection box.

[0009] By adopting the above technical solution, when the sewage is settled in the sedimentation tank, the upper clear water is discharged into the regulation tank. Then, the support plate is driven to slide along the slide rail. While the support plate is sliding, the pusher transports the sludge at the bottom of the sedimentation tank into the collection box. Then, the slurry pump discharges the sludge in the collection box out of the sedimentation tank through the sludge suction hose, thereby realizing the cleaning of the sludge in the sedimentation tank and enabling the sedimentation tank to continuously sediment the sludge in the sewage.

[0010] In a specific feasible implementation, the pusher includes a driving motor, two rotating rollers, a conveyor belt, and a push plate arranged on the support plate. Each rotating roller is rotatably arranged with the support plate. The output shaft of the driving motor is coaxially connected with the rotating roller. The two rotating rollers are connected by the conveyor belt. The push plate is fixedly arranged on the conveyor belt, and the push plate pushes the sludge into the collection box.

[0011] By adopting the above technical solution, when cleaning the sludge in the sedimentation tank, the driving motor drives the rotating roller to rotate. The rotating roller drives another rotating roller to rotate through the conveyor belt. The push plate moves along with the conveyor belt and pushes the sludge into the collection box while moving, thereby realizing the cleaning of the sludge in the sedimentation tank.

[0012] In a specific feasible implementation, a rotating rod is provided on the support plate. A fixed gear is coaxially fixed on the rotating rod. A driving disk is coaxially rotatably arranged on the rotating rod. A driving gear for meshing with the fixed gear is rotatably arranged on the driving disk. A reciprocating lead screw is provided on the driving disk. The screw rod of the reciprocating lead screw is rotatably arranged with the driving disk. The screw rod of the reciprocating lead screw is coaxially arranged on the driving gear. A scraper is fixedly arranged on the slider of the reciprocating lead screw. The scraper is used to push the sludge on the push plate into the collection box. A torsion spring for pulling the scraper to contact the push plate is provided on the rotating rod.

[0013] By adopting the above technical solution, when the push plate pushes the sludge to move to the collection box, at this time, the push plate also moves to the rotating roller. The push plate pushes the scraper, and the scraper pushes the driving disk to rotate through the reciprocating lead screw. While the driving disk rotates, it drives the driving gear to rotate around the fixed gear and generates self-rotation at the same time. At this time, the torsion spring rotates, so that the driving gear drives the screw rod of the reciprocating lead screw to rotate. At this time, the slider on the reciprocating lead screw drives the scraper to slide downward. When the scraper moves to the bottom of the push plate, it rises under the action of the reciprocating lead screw, so that the scraper is separated from the push plate. Then, the driving disk returns to the initial position under the pull of the torsion spring, so that the scraper scrapes the sludge attached to the push plate into the collection box, effectively avoiding the sludge attached to the push plate from falling on the cleaned area, thereby improving the cleaning efficiency of the sedimentation tank. At the same time, the sludge attached to the push plate can be automatically cleaned, making the sludge cleaning process more intelligent.

[0014] In a specific feasible implementation, a spiral groove is provided on the rotating rod, and a limiting block for sliding in the spiral groove is provided on the driving disk. The limiting block slides from the lowest end of the spiral groove to the highest end of the spiral groove, so that the driving disk slides away from the push plate.

[0015] By adopting the above technical solution, while the driving disk rotates, the limiting block slides from one end of the spiral groove to the other end of the limiting groove, so that the driving disk is lifted. When the scraper is separated from the push plate, the driving disk flips under the pull of the telescopic spring, so that the limiting block slides along the spiral groove to its original position. At this time, the driving disk moves downward, so that the push plate can push the scraper to slide.

[0016] In a specific feasible implementation, the floating component includes a plant floating plate. Planting cone holes for planting emergent plants are provided on the plant floating plate. Clamping plates for clamping the roots of emergent plants are provided in the planting cone holes. Two oppositely arranged clamping rods are slidably provided on the hole wall of the planting cone hole. The clamping plates correspond to the clamping rods one by one and are fixedly provided. Clamping springs for pulling the clamping rods are provided on the hole wall of the planting cone hole.

[0017] By adopting the above technical solution, when planting emergent plants, first lift the two clamping rods upward. Each clamping rod slides along the planting cone hole. At this time, the clamping spring elongates, so that the two clamping plates move away from each other. Then, put the roots of the emergent plants into the planting cone hole, and then release the clamping rods. The clamping spring pulls the clamping rods to slide downward, and then the clamping plates clamp the roots of the emergent plants, thereby realizing the planting of emergent plants and improving the convenience of planting emergent plants.

[0018] In a specific feasible implementation, the dosing component includes a bacteria storage tank and a solenoid valve arranged on the plant floating tray. The bacteria storage tank is used to hold microorganisms. An outlet pipe is communicated with the bacteria storage tank. The solenoid valve is arranged on the outlet pipe and controls the opening and closing of the outlet pipe. A plurality of diversion pipes are arranged on the outlet pipe. A plurality of attachment frames for extending into the water are arranged on the plant floating tray. The attachment frames correspond to the diversion pipes one by one. The outlet of the diversion pipe is located above the attachment frame.

[0019] By adopting the above technical solution, when the sewage is initially purified, the controller controls the outlet pipe to be opened regularly. Then the microorganisms flow out along the outlet pipe, and then the microorganisms are dispersed and sprinkled into the sewage through the diversion pipes, making the microorganisms more evenly dispersed in the sewage. Then, through the attachment frames, the microorganisms are attached to the attachment frames, reducing the consumption of microorganisms.

[0020] In a specific feasible implementation, a stirring rod is rotatably arranged in the primary purification tank. A stirring motor for driving the stirring rod to rotate is arranged in the primary purification tank. Stirring paddles are arranged on the stirring rod.

[0021] By adopting the above technical solution, the stirring motor drives the stirring paddles to stir the sewage through the stirring rod. On the one hand, it can improve the uniformity of the dispersion of microorganisms in the sewage, and on the other hand, it can improve the treatment efficiency of the emergent plants for the sewage.

[0022] In a specific feasible implementation, it includes a sealing cylinder sleeved on the stirring rod. The sealing cylinder is rotatably arranged with the stirring rod. An air passage is arranged on the stirring rod. The air passage extends to the stirring paddles. Air outlet holes communicated with the air passage are arranged on the stirring paddles. An air inlet hole communicated with the air passage is arranged on the stirring rod. The air inlet hole is located inside the sealing cylinder. There is a gap between the stirring rod and the sealing cylinder. An air pump is arranged on the primary purification tank. A ventilation pipe for inserting into the sealing cylinder is arranged at the outlet of the air pump.

[0023] By adopting the above technical solution, when the stirring motor drives the stirring paddles to stir the sewage, at this time, the stirring rod and the sealing cylinder rotate relatively. The air pump passes high-pressure air into the sealing cylinder through the ventilation pipe. Then the high-pressure air enters the air passage along the air inlet hole, and then discharges from the air outlet holes on the stirring paddles along the air passage, which can oxygenate the sewage, increase the reproduction speed of microorganisms. At the same time, the stirring paddles drive the air outlet holes to rotate, so that the bubbles blown out by the air outlet holes can increase the degree of disturbance of the sewage, making the distribution of microorganisms in the sewage more uniform.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When purifying sewage discharged into a wetland ecological purification system, first pass the sewage into a sedimentation tank. Then, sediment such as sludge and eggs in the sewage precipitates in the sedimentation tank. Next, take the supernatant and discharge it into an adjustment tank to adjust the pH value of the sewage. The sediment at the bottom is cleaned out of the sedimentation tank through a cleaning component. Then, the sewage is passed into a primary purification tank, and microorganisms are put into the primary purification tank through a dosing component. The microorganisms decompose the organic matter in the sewage and absorb nitrogen and phosphorus. Then, the emergent plants on the floating support component absorb heavy metal ions in the sewage, thereby reducing the pollution degree of the sewage. Then, pass the sewage in the primary purification tank into an ecological purification tank, and purify the sewage through ecological factors, so that the sewage is purified into reclaimed water. This solution pre-treats the sewage to reduce the impact of the sewage on the wetland ecological purification system, thereby effectively avoiding damage to the wetland ecological purification system caused by the sewage;

[0026] 2. When cleaning the sludge in the sedimentation tank, drive the support plate to slide along the slide rail. While the support plate is sliding, the drive motor drives the rotating roller to rotate. The rotating roller drives the push plate to push the sludge into the collection box through the conveyor belt. Then, convey the sludge at the bottom of the sedimentation tank into the collection box. Then, the mud pump discharges the sludge in the collection box out of the sedimentation tank through the mud hose, thereby realizing the cleaning of the sludge in the sedimentation tank and enabling the sedimentation tank to continuously precipitate the sludge in the sewage;

[0027] 3. When the push plate pushes the sludge to move to the collection box, at this time, the push plate also moves to the position of the rotating roller. The push plate pushes the scraper, and the scraper pushes the drive disk to rotate through the reciprocating lead screw. While the drive disk is rotating, it drives the drive gear to rotate around the fixed gear and generate self-rotation at the same time. At this time, the tension spring is stretched, so that the drive gear drives the screw of the reciprocating lead screw to rotate. At this time, the slider on the reciprocating lead screw drives the scraper to slide downward, thereby improving the cleaning efficiency of the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the reclaimed water wetland ecological purification system according to the embodiment of the present application.

[0029] Figure 2 is a schematic structural diagram for showing the cleaning component.

[0030] Figure 3 is Figure 2 the enlarged view of part A in

[0031] Figure 4 is a schematic structural diagram for showing the pusher.

[0032] Figure 5 is Figure 4 the enlarged view of part B in

[0033] Figure 6 is alongFigure 4 Cross-sectional view of the C-C line.

[0034] Figure 7 It is a schematic structural diagram for showing the floating support component.

[0035] Figure 8 It is a schematic structural diagram for showing the feeding component.

[0036] Figure 9 It is along Figure 8 Cross-sectional view of the E-E line in

[0037] Figure 10 It is Figure 7 Enlarged view of part D in

[0038] Explanation of reference numerals: 1, sedimentation tank; 2, regulating tank; 3, primary purification tank; 4, ecological purification tank; 41, ecological factors; 411, carnivorous fish; 412, submerged plants; 413, packing layer; 5, cleaning component; 51, support plate; 52, pushing member; 521, driving motor; 522, rotating roller; 523, conveyor belt; 524, pushing plate; 53, slurry pump; 541, support rack; 542, sliding box; 543, sliding gear; 544, sliding motor; 545, driving shaft; 546, support rod; 547, cleaning groove; 55, collection box; 551, pushing surface; 552, sludge suction hose; 561, rotating rod; 562, fixed gear; 563, driving disc; 564, spiral groove; 565, limiting block; 566, support platform; 567, driving gear; 568, scraper; 569, reciprocating lead screw; 570, guide rod; 571, torsion spring; 6, feeding component; 61, bacteria storage tank; 62, solenoid valve; 63, discharge pipe; 64, controller; 65, diversion pipe; 66, attachment frame; 7, floating support component; 71, plant floating tray; 72, planting conical hole; 73, clamping rod; 74, clamping plate; 75, clamping spring; 81, stirring motor; 82, stirring rod; 83, stirring paddle; 84, sealing cylinder; 85, air passage; 86, air inlet hole; 87, air outlet hole; 88, air pump; 89, ventilation pipe. Detailed implementation manners

[0039] The following further elaborates on this application in conjunction with the attached Figures 1 - 10 for a more detailed description of this application.

[0040] The embodiment of this application discloses a reclaimed water wetland ecological purification system.

[0041] Refer to Figure 1, A reclaimed water wetland ecological purification system includes a sedimentation tank 1, a regulation tank 2, a primary purification tank 3, and an ecological purification tank 4. The sedimentation tank 1, the regulation tank 2, the primary purification tank 3, and the ecological purification tank 4 are gradually decreasing in height, and adjacent ones are connected by valve pipes. The valve pipes include valves and pipes. There is an inlet for sewage on the side wall of the sedimentation tank 1, and a cleaning component 5 for cleaning sludge is provided at the bottom of the sedimentation tank 1. The regulation tank 2 is used to adjust the pH value of the sewage so that the sewage reaches the pH value suitable for microbial reproduction. A dosing component 6 and a floating support component 7 are provided on the primary purification tank 3. The dosing component 6 is used to hold and dose microorganisms. The microorganisms in this embodiment include nitrifying bacteria, denitrifying bacteria, polyphosphate-accumulating bacteria, etc. Emergent plants are planted on the floating support component 7. The emergent plants in this embodiment include water bamboo, canna, duckweed, calla lily, soft rush, umbrella grass, calamus, and water lily, etc. An ecological factor 41 for purifying water quality is provided in the ecological purification tank 4. The ecological factor 41 in this embodiment includes filter-feeding fish 411, submerged plants 412, and a filler layer 413. The filter-feeding fish 411 in this embodiment is preferably silver carp, the submerged plant 412 is preferably cattail, and the filler layer 413 includes a sand layer, a stone layer, and a soil layer.

[0042] When treating sewage, first pass the sewage into the sedimentation tank 1. Sediments such as sludge and eggs in the sewage are deposited in the sedimentation tank 1. Then, pass the supernatant in the sedimentation tank 1 into the regulation tank 2. The cleaning component 5 cleans the sludge in the sedimentation tank 1. The regulation tank 2 adjusts the pH value of the sewage. An alkaline solution, such as sodium hydroxide, calcium hydroxide, etc., is passed into the sewage to adjust the pH of the sewage to 7.5 - 8.2. Then, pass the sewage into the primary purification tank 3. Then, through the dosing component 6, microorganisms are dosed into the sewage. The removal of nitrogen is generally achieved through the absorption of plants and the nitrification and denitrification of microorganisms. The biodegradation of microorganisms has a very significant effect on the removal of nitrogen content. The emergent plants on the floating support component 7 absorb pollutants, heavy metal ions, etc. in the water through direct and indirect purification effects, thereby realizing the purification of sewage. The purified sewage is discharged into the ecological purification tank 4. The filler layer 413 constitutes the filter bed of the wetland and can support various plants. While the filler layer 413 provides a substrate for the growth of plants, it can also remove some pollutants. At the same time, the soil layer can also indirectly affect the sewage treatment effect of the wetland by affecting the metabolism and growth of plants or microorganisms. Through the primary purification of sewage, the content of pollutants in the sewage is reduced, and the impact of sewage on the wetland ecological purification system is reduced, thereby effectively avoiding the damage to the ecological system caused by sewage. At the same time, through primary purification and wetland ecological purification, reclaimed water is generated for use, thereby reducing sewage discharge and achieving energy conservation and emission reduction.

[0043] Refer to Figure 2 , Figure 3, the cleaning component 5 includes a support plate 51, a pushing member 52, and a slurry pump 53. Two support racks 541 are horizontally arranged on the sedimentation tank 1. A sliding box 542 is provided on each support rack 541. The support rack 541 passes through the sliding box 542 and is slidably arranged with the sliding box 542. Two sliding gears 543 are rotatably provided on each sliding box 542. The sliding gears 543 mesh with the support rack 541. The two sliding gears 543 are arranged along the length direction of the support rack 541. A sliding motor 544 is fixedly provided on the side of one of the sliding boxes 542. The output shaft of the sliding motor 544 is coaxially fixedly provided with a driving shaft 545. The driving shaft 545 sequentially passes through the two sliding boxes 542 and the sliding gears 543. The driving shaft 545 is slidably arranged with the sliding box 542. The driving shaft 545 is coaxially fixedly arranged with the sliding gear 543. A support rod 546 is fixedly provided at the bottom of each sliding box 542.

[0044] Refer to Figure 2 , Figure 4 , the support plate 51 is fixedly provided at one end of the two support rods 546 away from the sliding box 542. At the same time, the support plate 51 slides along the bottom of the sedimentation tank 1. A cleaning groove 547 is provided at the bottom of the sedimentation tank 1. The cleaning groove 547 is arranged along the sliding direction of the sliding box 542. A collection box 55 for sliding in the cleaning groove 547 is slidably arranged in the sedimentation tank 1. The collection box 55 is fixedly provided with the support plate 51. A pushing surface 551 is provided on one side of the collection box 55 where it slides. The pushing surface 551 is inclined downward. The support plate 51 is located above the collection box 55. The pushing member 52 includes a driving motor 521, two rotating rollers 522, a conveyor belt 523, and a plurality of pushing plates 524. The rotating rollers 522 are rotatably provided at both ends of the support plate 51. Each rotating roller 522 is vertically arranged. The conveyor belt 523 bypasses the rotating rollers 522 and is tightened. A plurality of pushing plates 524 are uniformly fixedly provided on the conveyor belt 523.

[0045] Refer to Figure 4 , Figure 5 and Figure 6, a rotating rod 561 is vertically fixed on the support plate 51. The axis of the rotating rod 561 is collinear with the axis of the rotating roller 522 on the same side. The rotating rod 561 is arranged above the collection box 55. A fixed gear 562 is coaxially fixed on the rotating rod 561. A driving disc 563 is coaxially sleeved on the rotating rod 561. The driving disc 563 is rotatably arranged with the rotating rod 561. An inclined upward spiral groove 564 is arranged on the rotating rod 561. A limiting block 565 for sliding in the spiral groove 564 is arranged on the driving disc 563. The driving disc 563 is located above the fixed gear 562. The part of the driving disc 563 with a radius larger than that of the fixed gear 562 extends downward and bends to form a support platform 566. The distance between two adjacent push plates 524 is greater than 1 / 2 of the maximum circumference of the support platform 566. A driving gear 567 is rotatably arranged on the support platform 566. The axis of the driving gear 567 is arranged in the vertical direction. The driving gear 567 passes through the driving disc 563 and meshes with the fixed gear 562. A scraping plate 568 is arranged on the push plate 524. The driving gear 567 is connected with the scraping plate 568 through a reciprocating lead screw 569. The screw rod of the reciprocating lead screw 569 is coaxially and fixedly arranged with the driving gear 567. The screw rod of the reciprocating lead screw 569 passes through the support platform 566 downward and extends above the push plate 524. The scraping plate 568 is fixedly arranged with the slider of the reciprocating lead screw 569. A guiding rod 570 is arranged on the driving disc 563. The guiding rod 570 is inserted into the scraping plate 568 and is slidably arranged with the scraping plate 568. A torsion spring 571 is sleeved on the rotating rod 561. One end of the torsion spring 571 is fixedly arranged with the rotating rod 561, and the other end of the torsion spring 571 is fixedly arranged with the driving disc 563. When the push plate 524 slides to the intersection of the straight edge and the arc on the conveyor belt 523, the push plate 524 abuts against the scraping plate 568. When the push plate 524 slides 1 / 4 of the circumference of the rotating roller 522, the scraping plate 568 slides to the bottom of the push plate 524. When the push plate 524 slides to 1 / 2 of the circumference of the rotating roller 522, the scraping plate 568 slides above the push plate 524 and disengages from the push plate 524

[0046] Refer to Figure 2 , the mud pump 53 is located on the sedimentation tank 1. The mud pump 53 is connected with the collection box 55 through a mud suction hose 552. The socket of the mud suction hose 552 is located at a lower position on the side wall of the collection box 55.

[0047] When cleaning the sludge in the sedimentation tank 1, the sliding motor 544 drives the driving shaft 545 to rotate, and the driving shaft 545 drives the sliding gear 543 to rotate, so that the sliding box 542 slides along the supporting rack 541, and the sliding box 542 drives the supporting plate 51 to slide through the supporting rod 546, and the sliding of the supporting plate 51 drives the collecting box 55 to slide in the cleaning groove 547, and the pushing surface 551 can push up the sludge in the cleaning groove 547 and guide it into the collecting box 55. At this time, the driving motor 521 drives the rotating roller 522 to rotate, and the rotating roller 522 drives the conveyor belt 5 23 rotates, the conveyor belt 523 drives the push plate 524 to push the sludge in the sedimentation tank 1 toward the collection box 55, and the sludge falls into the collection box 55. When the push plate 524 moves to the intersection of the straight edge and the arc edge of the conveyor belt 523, the push plate 524 drives the scraper 568 to rotate, and the scraper 568 drives the driving plate 563 to rotate around the rotating rod 561 through the screw of the reciprocating screw 569. At this time, the torsion spring 571 is twisted, and the driving gear 567 rotates along the fixed gear 562 while rotating. The driving gear 567 drives the screw of the reciprocating screw 569 to rotate, and the screw The slider drives the scraper 568 to slide downward along the push plate 524, so that the sludge attached to the push plate 524 is scraped off into the collection box 55. At this time, the limit block 565 slides along the spiral groove 564, so that the driving disk 563 is lifted, and then as the push plate 524 continues to push the scraper 568 to rotate, the scraper 568 rises under the action of the reciprocating screw 569. When the push plate 524 is about to break away from the arc edge on the conveyor belt 523, the scraper 568 slides to the top of the push plate 524 and breaks away from the push plate 524. At this time, the driving disk 563 is pushed by the torsion spring 571. The limit block 565 then slides from the highest point in the spiral groove 564 to the lowest point. When the limit block 565 slides to the lowest point in the spiral groove 564, the scraper 568 moves down to a position where it can interfere with the push plate 524, so that the scraper 568 can continuously clean the sludge on the push plate 524, effectively preventing the sludge attached to the push plate 524 from falling into the cleaned area, thereby improving the cleaning efficiency of the sedimentation tank 1, and cleaning the sludge attached to the push plate 524 without manual labor, making the sludge cleaning more intelligent.

[0048] Refer to Figure 7. Figure 8 and Figure 9, the floating support assembly 7 includes a plant floating tray 71 which floats in the primary purification tank 3. The plant floating tray 71 is provided with a number of planting cone holes 72. The large mouth of each planting cone hole 72 faces upward and the small mouth faces downward. Two clamping rods 73 are slidably arranged on the side wall of each planting cone hole 72. The two clamping rods 73 are evenly arranged along the circumferential direction of the planting cone hole 72. A clamping plate 74 is fixedly arranged on each clamping rod 73. The clamping plate 74 is an arc-shaped plate. The two clamping plates 74 are arranged at intervals. A clamping spring 75 is fixedly arranged at the bottom of each clamping rod 73. The other end of the clamping spring 75 is fixedly connected to the plant floating tray 71.

[0049] Referring to Fig. 7, Figure 8 and Figure 9 , the dosing assembly 6 includes a bacteria storage tank 61 and a solenoid valve 62 arranged on the plant floating tray 71. The bacteria storage tank 61 is arranged between two rows of planting cone holes 72. A discharge pipe 63 is communicated and arranged at the bottom of the bacteria storage tank 61. The solenoid valve 62 is arranged on the discharge pipe 63. A controller 64 is arranged on the plant floating tray 71. The controller 64 is electrically connected to the solenoid valve 62. The controller 64 controls the solenoid valve 62 to open and close regularly. A number of attachment frames 66 are fixedly arranged at the bottom of the plant floating tray 71. A number of diversion pipes 65 are communicated and arranged on the discharge pipe 63. The diversion pipes 65 correspond to the attachment frames 66 one by one. The diversion pipes 65 penetrate the plant floating tray 71 from top to bottom. The diversion pipes 65 are located above the attachment frames 66.

[0050] When purifying the sewage in the primary purification tank 3, first control the solenoid valve 62 to open through the controller 64. The microorganisms in the bacteria storage tank 61 are put into the sewage along with the discharge pipe 63 and the diversion pipes 65, so that the dosing of the microorganisms is more uniform. Part of the microorganisms put into the sewage flow with the sewage, and part of them adhere to the attachment frames 66. The consumption of the microorganisms is reduced through the attachment frames 66. The microorganisms purify the sewage. At the same time, when planting the emergent plants on the plant floating tray 71, first pull the clamping rod 73 upward. At this time, the clamping spring 75 is stretched and the two clamping plates 74 are opened. Then place the emergent plants into the planting cone holes 72, and then release the clamping rod 73. Then, under the pulling of the clamping spring 75, the clamping plates 74 clamp and fix the emergent plants, thus improving the convenience of planting the emergent plants. The emergent plants absorb the heavy metal ions in the sewage, thereby realizing the primary purification of the sewage.

[0051] Referring to Figure 7 、 Figure 10, a stirring motor 81 is provided below the primary purification tank 3. The output shaft of the stirring motor 81 is coaxially and fixedly provided with a stirring rod 82. The stirring rod 82 extends into the primary purification tank. At one end of the stirring rod 82 extending into the primary purification tank 3, a number of stirring paddles 83 are provided. The stirring paddles 83 are integrally manufactured with the stirring rod 82. Then, a sealing cylinder 84 is sleeved on the stirring rod 82. The sealing cylinder 84 and the stirring rod 82 are sealed by a sliding sealing structure. There is a gap between the sealing cylinder 84 and the stirring rod 82. An air passage 85 is provided on the stirring rod 82. An air inlet hole 86 communicated with the air passage 85 is provided on the stirring rod 82. The air passage 85 extends to each stirring paddle 83. An air outlet hole 87 communicated with the air passage 85 is provided on each stirring paddle 83. An air pump 88 is provided on the primary purification tank 3. A ventilation pipe 89 is communicated with the outlet of the air pump 88. One end of the ventilation pipe 89 is inserted into the sealing cylinder 84 and communicated with the air inlet hole 86.

[0052] When purifying the sewage in the primary purification tank 3, first start the stirring motor 81. The stirring motor 81 drives the stirring rod 82 to rotate. The stirring rod 82 drives the stirring paddles 83 to stir the sewage. At this time, the stirring rod 82 and the sealing cylinder 84 rotate relatively. Then start the air pump 88. The air pump 88 passes high-pressure gas into the sealing cylinder 84 through the ventilation pipe 89, and then discharges it into the sewage through the air inlet hole 86, the air passage 85, and the air outlet hole 87. By stirring the sewage, the uniformity of microorganisms in the sewage is increased. At the same time, by introducing air into the sewage, the oxygen content in the sewage is increased, and the reproduction of microorganisms is accelerated, thereby improving the purification rate of the sewage.

[0053] The implementation principle of the reclaimed water wetland ecological purification system in the embodiment of the present application is as follows: When purifying the sewage discharged into the wetland ecological purification system, first pass the sewage into the sedimentation tank 1. Then, sediments such as sludge and eggs in the sewage precipitate in the sedimentation tank 1. Then take the upper clear liquid and discharge it into the adjustment tank 2 to adjust the pH value of the sewage. The lower sediment is cleaned out of the sedimentation tank 1 through the cleaning component 5. Then the sewage is passed into the primary purification tank 3. Microorganisms are put into the primary purification tank 3 through the feeding component 6. The microorganisms decompose the organic matter in the sewage and absorb nitrogen and phosphorus. Then, the emergent plants on the floating component 7 absorb heavy metal ions in the sewage, thereby reducing the pollution degree of the sewage. Then, the sewage in the primary purification tank 3 is passed into the ecological purification tank 4, and the sewage is purified by the ecological factor 41, so that the sewage is purified into reclaimed water. Compared with the method of directly discharging sewage into the wetland ecological purification system, this scheme can more effectively reduce the impact of sewage on the wetland ecological purification system, thereby effectively avoiding damage to the wetland ecological purification system caused by sewage.

[0054] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A reclaimed water wetland ecological purification system, characterized in that: It includes a sedimentation tank (1), a regulating tank (2), a primary purification tank (3) and an ecological purification tank (4). The sedimentation tank (1), the regulating tank (2), the primary purification tank (3) and the ecological purification tank (4) are connected and arranged through valve pipes between adjacent ones. A cleaning component (5) for cleaning the sludge in the sewage is arranged in the sedimentation tank (1). A feeding component (6) for containing microorganisms and a floating component (7) for planting emergent plants are arranged in the primary purification tank (3). An ecological factor (41) for purifying water quality is arranged in the ecological purification tank (4). The cleaning component (5) includes a support plate (51), a pushing member (52) and a slurry pump (53). A support rack (541) is arranged on the sedimentation tank (1). The support plate (51) is slidably arranged with the support rack (541). A collection box (55) is arranged on the support plate (51). The pushing member (52) is arranged on the support plate (51). The pushing member (52) is used to transport the sludge to the collection box (55). A sludge suction hose (552) is arranged at the adsorption port of the slurry pump (53). The sludge suction hose (552) is inserted into the bottom of the collection box (55) and is connected and arranged with the collection box (55). The pushing member (52) includes a driving motor (521) arranged on the support plate (51), two rotating rollers (522), a conveyor belt (523) and a push plate (524). Each rotating roller (522) is rotatably arranged with the support plate (51). The output shaft of the driving motor (521) is coaxially connected with the rotating roller (522). The two rotating rollers (522) are connected by the conveyor belt (523). The push plate (524) is fixedly arranged on the conveyor belt (523). The push plate (524) pushes the sludge into the collection box (55). A rotating rod (561) is arranged on the support plate (51). A fixed gear (562) is coaxially fixed on the rotating rod (561). A driving disc (563) is coaxially rotatably arranged on the rotating rod (561). A driving gear (567) for meshing with the fixed gear (562) is rotatably arranged on the driving disc. A reciprocating lead screw (569) is arranged on the driving disc (563). The screw rod of the reciprocating lead screw (569) is rotatably arranged with the driving disc (563). The screw rod of the reciprocating lead screw (569) is coaxially arranged on the driving gear (567). A scraper (568) is fixedly arranged on the slider of the reciprocating lead screw (569). The scraper (568) is used to push the sludge on the push plate (524) into the collection box (55). A torsion spring (571) for pulling the scraper (568) to contact with the push plate (524) is arranged on the rotating rod (561).

2. The reclaimed water wetland ecological purification system according to claim 1, characterized in that: The rotating rod (561) is provided with a spiral groove (564), and the driving disk (563) is provided with a limiting block (565) for sliding in the spiral groove (564). The limiting block (565) slides from the lowest end of the spiral groove (564) to the highest end of the spiral groove (564), so that the driving disk (563) slides away from the push plate (524).

3. The reclaimed water wetland ecological purification system according to claim 1, characterized in that: The floating component (7) includes a plant floating disk (71). The plant floating disk (71) is provided with planting conical holes (72) for planting emergent plants. A clamping plate (74) for clamping the roots of emergent plants is arranged in the planting conical holes (72). Two oppositely arranged clamping rods (73) are slidably arranged on the hole wall of the planting conical holes (72). The clamping plate (74) corresponds to the clamping rods (73) one by one and is fixedly arranged. A clamping spring (75) for pulling the clamping rods (73) is arranged on the hole wall of the planting conical holes (72).

4. The reclaimed water wetland ecological purification system according to claim 3, characterized in that: The feeding component (6) includes a bacteria storage tank (61) and an electromagnetic valve (62) arranged on the plant floating disk (71). The bacteria storage tank (61) is used for storing microorganisms. A discharge pipe (63) is communicated with the bacteria storage tank (61). The electromagnetic valve (62) is arranged on the discharge pipe (63) and controls the opening and closing of the discharge pipe (63). A plurality of diversion pipes (65) are arranged on the discharge pipe (63). A plurality of attachment frames (66) for extending into the water are arranged on the plant floating disk (71). The attachment frames (66) correspond to the diversion pipes (65) one by one. The outlet of the diversion pipe (65) is located above the attachment frame (66).

5. The reclaimed water wetland ecological purification system according to claim 1, wherein: A stirring rod (82) is rotatably arranged in the primary purification tank (3). A stirring motor (81) for driving the stirring rod (82) to rotate is arranged in the primary purification tank (3). Stirring paddles (83) are arranged on the stirring rod (82).

6. The reclaimed water wetland ecological purification system according to claim 5, wherein: It includes a sealing cylinder (84) sleeved on the stirring rod (82). The sealing cylinder (84) is rotatably arranged with the stirring rod (82). An air passage (85) is arranged on the stirring rod (82). The air passage (85) extends to the stirring paddle (83). Air outlet holes (87) communicated with the air passage (85) are arranged on the stirring paddle (83). An air inlet hole (86) communicated with the air passage (85) is arranged on the stirring rod (82). The air inlet hole (86) is located in the sealing cylinder (84). A gap exists between the stirring rod (82) and the sealing cylinder (84). An air pump (88) is arranged on the primary purification tank (3). A ventilation pipe (89) for inserting into the sealing cylinder (84) is arranged at the outlet of the air pump (88).

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