Wastewater continuous treatment equipment and treatment method

Abstract

The invention relates to the field of wastewater treatment, and discloses wastewater continuous treatment equipment and a treatment method.The wastewater continuous treatment equipment comprises a treatment box, an upper partition plate, a lower partition plate, a wastewater inlet, a wastewater outlet, a control motor, a transmission shaft, a fixing plate, a rough filtering plate, a bottom baffle, a connecting pipe, a waste collecting frame and the like; an upper partition plate and a lower partition plate are fixedly connected into the treatment box and divide the treatment box into an upper layer, a middle layer and a lower layer, a wastewater inlet is formed in the top of the treatment box, an outlet is fixedly connected to the bottom of the treatment box, and domestic wastewater is poured into the treatment box through the wastewater inlet. Through a multi-stage treatment mode of the rotary salvaging mechanism and the air flotation impurity removal mechanism, stable removal of large and small solid wastes, grease and the like in domestic wastewater is realized, meanwhile, a waste collection path is optimized, the continuous operation stability of the equipment is remarkably improved, multiple functions are designed in a layered manner, the occupied space of the equipment is reduced, and the equipment is convenient to use. The wastewater treatment requirement in the ship running process is met.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and particularly to a continuous wastewater treatment device and a treatment method. Background Art

[0002] The treatment of ship domestic wastewater is an important topic in the field of maritime environmental protection. Its technological development is strictly restricted by the International Maritime Organization, requiring ships to be equipped with compliant wastewater treatment systems to prevent marine pollution. Ship domestic wastewater mainly comes from the daily wastewater of onboard personnel (crew and passengers). The discharged water can be divided into two types according to different water qualities: black water and grey water. Black water refers to the toilet flushing wastewater with a high pollutant content, i.e., fecal sewage; grey water refers to the relatively less polluted wastewater from bathing, kitchens, laundry, etc. In the past, the research mainly focused on black water treatment. However, in recent years, due to the requirements of foreign management of water environment, the separate discharge of grey water has also been included in the management scope of ship sewage, and it is also required to meet the discharge standards.

[0003] Due to the narrow space on ships and the complex composition of wastewater, domestic wastewater contains a high concentration of suspended solids, oils and fats, and organic substances. Existing equipment usually combines multi-stage precipitation with fixed filtration. However, when filtering solid debris, paper towels, food residues, etc. are likely to accumulate on the surface of the filter plate and cause blockage, resulting in an increase in filtration resistance and affecting the filtration efficiency of the equipment. The removal effect of small particle suspended solids, oils and fats, and organic substances by the precipitation filtration method is relatively poor. The domestic wastewater simply treated by precipitation filtration is difficult to meet the discharge standards. Moreover, the waste collection system of existing wastewater treatment equipment is separated from the treatment process, requiring additional power to transport the waste residue, increasing energy consumption and also requiring more space, reducing the reliability of the equipment. Summary of the Invention

[0004] In order to solve the problems that solid waste is prone to block the filter plate during the use of existing equipment, it is difficult to remove small particle suspended solids and oils and fats in domestic wastewater, and the existing wastewater treatment equipment has low reliability and occupies a large space, the present invention provides a continuous wastewater treatment device, which salvages solid waste in domestic wastewater while filtering it, and then treats the remaining small particle suspended solids and oils and fats in domestic wastewater by the air flotation method, so that the treated domestic wastewater can meet the discharge standards.

[0005] The technical solution of the present invention is: a wastewater continuous treatment equipment, including a treatment box, an upper partition, a lower partition, a wastewater inlet, an outlet, a control motor, a transmission shaft, a fixed plate, a coarse filter plate, a bottom baffle, a connecting pipe, a waste collection frame, a fixed plate, a rotating salvage mechanism and an air flotation impurity removal mechanism, the treatment box is fixed with an upper partition and a lower partition, the upper partition and the lower partition separate the treatment box and form an upper, middle and lower three layers, the treatment box is provided with a wastewater inlet at the top, the treatment box is fixed with an outlet at the bottom, the treatment box is fixed with a control motor outside, and the treatment box is rotatably connected with a transmission mechanism inside. The output shaft of the control motor is fixedly connected to the transmission shaft, a fixed plate and a bottom baffle are fixedly connected in the processing box, a coarse filter plate is fixedly connected between the fixed plate and the bottom baffle, a connecting pipe is fixedly connected outside the processing box, the connecting pipe connects the upper layer and the middle layer inside the processing box, a fixed disk is fixedly connected in the processing box, a waste collection frame is fixedly connected in the fixed disk, a rotary salvaging mechanism is rotatably installed in the processing box, the rotary salvaging mechanism salvages large pieces of solid waste in the processing box and puts them into the waste collection frame, an air flotation impurity removal mechanism is installed in the processing box, the air flotation impurity removal mechanism removes small particles of waste in the wastewater.

[0006] Preferably, the rotating salvage mechanism includes a rotating salvage plate, a rotating frame, a rotating cam, a connecting rod and a scraping assembly. A rotating cam is rotatably connected in the fixed plate, and a rotating cam is also rotatably connected on the transmission shaft. The two rotating cams are connected by a connecting rod. A rotating frame is rotatably connected in the processing box. The rotating cam in the fixed plate is fixedly connected to the rotating frame, and a rotating salvage plate is fixedly connected to the rotating frame. The scraping assembly is installed in the rotating frame, and the scraping assembly is used to scrape the salvaged waste from the rotating salvage plate and make it fall into the waste collection frame.

[0007] Preferably, the scraping assembly includes a sliding scraping frame, a rotating rod, a rotating connecting rod, a torsion spring, a toggle plate and a wedge block. The rotating salvage plate is slidably connected to the sliding scraping frame outside, and is rotatably connected to the rotating frame inside. The rotating rod is rotatably connected to the rotating frame at one end away from the rotating frame, and the other end of the rotating connecting rod is rotatably connected to the sliding scraping frame. A toggle plate is fixed to the rotating rod, and a torsion spring is provided between the toggle plate and the rotating frame. A wedge block is fixed to the inner side of the fixed disk and the fixed plate at the same height, and the toggle plate will contact the wedge block during the rotation of the rotating frame.

[0008] Preferably, the air flotation impurity removal mechanism includes an air inlet, a waste residue support plate, a rotating shaft, a bevel gear transmission member, a scraping turntable, an air injection pipe, an air outlet plate, a partition plate, a one-way air valve, a lifting connecting rod, an L-shaped sliding rod, an air injection piston and a conveying pipe. A rotating shaft is rotatably connected inside the upper partition plate. The rotating shaft is connected to the transmission shaft through a bevel gear transmission member. The bottom of the rotating shaft passes through the upper partition plate and is fixedly connected to the scraping turntable. A partition plate is fixedly connected inside the treatment tank. An air injection pipe is fixedly connected inside the partition plate. The other end of the air injection pipe is fixedly connected to the air outlet plate. Air holes are formed in the partition plate and are communicated with the air injection pipe. One-way air valves are installed in the air holes on the partition plate. An air inlet is formed in the front side of the treatment tank and is communicated with the air holes on the partition plate. An L-shaped sliding rod is slidably connected inside the bottom baffle. A lifting connecting rod is hinged to the connecting rod, and the other end of the lifting connecting rod is hinged to the L-shaped sliding rod. An air injection piston is slidably connected inside the air injection pipe. The bottom of the L-shaped sliding rod is fixedly connected to the air injection piston. A conveying pipe is fixedly connected to the lower partition plate. One end of the conveying pipe passes through the partition plate and is provided with a valve. The other end of the conveying pipe passes through the lower partition plate. The conveying pipe communicates the middle layer and the lower layer of the treatment tank. A waste residue support plate is fixedly connected inside the treatment tank, and the waste residue support plate is located above the conveying pipe.

[0009] Preferably, it further includes an anti-blocking component for preventing the coarse filter plate from being blocked. The anti-blocking component includes a T-shaped sliding rod, a lifting frame and a sliding scraping strip. The T-shaped sliding rod is slidably connected inside the fixing plate. The lifting frame is slidably connected outside the fixing plate. The T-shaped sliding rod is fixedly connected to the lifting frame. The sliding scraping strip is slidably connected inside the treatment tank, and the sliding scraping strip is fixedly connected to the lifting frame.

[0010] Preferably, it further includes an extrusion component for squeezing out the sewage in the fished large debris. The extrusion component includes a spiral conveyor roller, an extrusion baffle and a tension spring. The spiral conveyor roller is fixedly connected inside the rotating frame. The spiral conveyor roller is located inside the waste collection frame. An extrusion baffle is sleeved outside the spiral conveyor roller. The extrusion baffle is connected to the fixed plate through a tension spring.

[0011] Preferably, it further includes an aeration mechanism for aerating the filtered wastewater. The aeration mechanism includes an aeration cylinder, a fixed column, a cam transmission group, a rotating aeration rod, an aeration piston, an air inlet pipe, a rotating pipe, an aeration pipe and a rotating stirring component. The aeration cylinder is fixedly connected outside the treatment tank. The fixed column is fixedly connected to the aeration cylinder. The fixed column is connected to the spiral conveyor roller through a cam transmission group. The aeration piston is slidably connected inside the aeration cylinder. The top of the aeration piston is rotatably connected to the rotating aeration rod. The top of the rotating aeration rod is rotatably connected inside the cam transmission group. The air inlet pipe is fixedly connected outside the aeration cylinder and is communicated with the aeration cylinder. The rotating pipe is rotatably connected inside the treatment tank. The aeration pipe is arranged outside the rotating pipe. The aeration cylinder is communicated with the rotating pipe. The aeration pipe is fixedly connected outside the rotating pipe, and the rotating pipe is communicated with the aeration pipe.

[0012] Preferably, the rotary stirring assembly includes a conical acceleration tube, fan blades and stirring rods. The aeration cylinder and the rotary tube are connected through the conical acceleration tube. The fan blades are fixedly connected inside the rotary tube, and the stirring rods are fixedly connected outside the rotary tube. The stirring rods are sleeved outside the aeration pipe.

[0013] Preferably, it further includes a blocking assembly for preventing the reverse flow of wastewater into the rotary tube. The blocking assembly includes a blocking plug and a spring. The blocking plug is slidably connected to the stirring rod, and the blocking plug and the stirring rod are connected through the spring.

[0014] A continuous wastewater treatment method using the above continuous wastewater treatment equipment includes the following steps:

[0015] First step: Add domestic wastewater into the treatment tank through the wastewater inlet, start the control motor. The control motor drives the rotary frame to rotate through the transmission shaft. The rotary fishing plate on the rotary frame picks up large-particle waste materials in the domestic wastewater during rotation. As the rotary fishing plate rotates continuously, the picked-up waste materials will fall into the waste material collection frame for recycling. After the wastewater submerges the bottom baffle, it will pass through the coarse filter plate, and the large-particle waste materials in the wastewater are blocked by the coarse filter plate.

[0016] Second step: The wastewater passing through the coarse filter plate will flow along the connecting pipe into the treatment pool between the upper partition plate, the lower partition plate and the partition plate. When the top surface of the wastewater in the treatment pool is flush with the top surface of the partition plate, close the valve at the bottom of the connecting pipe. At this time, as the control motor rotates continuously, the transmission shaft drives the lifting link to move up and down through the rotary cam and the connecting rod, and then drives the air injection piston to move up and down through the L-shaped slide rod and injects gas into the treatment pool through the air outlet plate. The gas entering the treatment tank through the air outlet plate forms microbubbles. During the upward floating process of the microbubbles, they will combine with the solid particles in the wastewater to form bubble-particle complexes. Finally, the complexes float to the water surface, and the scraping turntable pushes the complexes on the top surface of the wastewater from the top of the partition plate to the waste residue support plate. After a period of treatment, the solid particles in the wastewater are removed. At this time, open the valve on the conveying pipe. When all the wastewater in the treatment pool flows out along the conveying pipe, close the valve on the conveying pipe, and then open the valve on the connecting pipe. The wastewater filtered by the coarse filter plate enters the treatment pool again for treatment.

[0017] Third step: The wastewater treated by the air flotation method flows into the aeration tank at the bottom of the treatment tank through the conveying pipe. The transmission shaft drives the cam drive group to rotate through the spiral conveyor roller. The cam drive group drives the aeration piston to move up and down through the rotating aeration rod. The aeration piston injects external air into the wastewater in the aeration tank through the aeration pipe on the rotary tube to aerate the wastewater. The water after aeration treatment flows out from the outlet at the bottom of the treatment tank.

[0018] Compared with the prior art, the present invention has the following advantages: 1. The present invention realizes the stable removal of suspended waste materials, such as large and small particles and grease, in domestic wastewater by integrating a rotary fishing mechanism and a flotation impurity removal mechanism. At the same time, the waste material collection path is optimized, significantly improving the continuous operation stability of the equipment. The multiple functions are designed in layers, reducing the occupied space of the equipment and better meeting the wastewater treatment requirements during ship operation.

[0019] 2. When treating domestic wastewater, the present invention first preliminarily filters the domestic wastewater through a coarse filter plate. The waste materials blocked by the coarse filter plate will remain in the upper space of the treatment tank. Subsequently, the domestic wastewater after coarse filtration flows through the connecting pipe into the treatment pool, and the flotation method is used to treat the domestic wastewater in the treatment pool to remove the remaining small particle wastes and grease in the domestic wastewater. The waste materials in the domestic wastewater are removed through continuous multiple treatments of the domestic wastewater.

[0020] 3. The large waste materials blocked by the coarse filter frame will be lifted upward by the rotary fishing plate. When the lifted waste materials rotate with the rotary fishing plate to the opening at the top of the waste material collection frame, the sliding scraping frame will be driven to slide downward along the rotary fishing plate to push the waste materials on the rotary fishing plate into the waste material collection frame, so as to salvage and recycle the large waste materials in the domestic wastewater.

[0021] 4. The spiral conveying roller continuously pushes the large waste materials fished out from the domestic wastewater in the waste material collection frame to the left. Under the cooperation of the extrusion stop disc and the tension spring, the waste materials at the left end of the waste material collection frame are extruded, and the wastewater in the waste materials is extruded out. When the thrust received by the extrusion stop disc is greater than the elastic force of the tension spring, the extruded waste materials will finally push the extrusion stop disc to slide open from the left side of the waste material collection frame, so that the extruded waste materials fall downward from the left end of the waste material collection frame. Moreover, the fished-out waste materials no longer contain wastewater after extrusion, and the volume of the waste materials is reduced, which is convenient for subsequent storage and can avoid the generation of peculiar smell due to the rotting of the waste materials.

[0022] 5. During the process of treating wastewater by the flotation method, when the scraping turntable rotates, it will push the waste materials floating on the surface of the wastewater to the waste residue support plate through the scraping rod at its bottom. After the equipment operates for a certain period of time, the waste residue on the waste residue support plate can be taken out through the storage door in the middle of the rear side of the treatment tank.

[0023] 6. When the wastewater flows into the lower layer of the treatment tank, air is continuously introduced into the wastewater for aeration treatment to provide oxygen for the microorganisms in the wastewater, enabling them to quickly decompose the organic matter in the wastewater. And when the air passes through the conical acceleration pipe, the flow rate is accelerated, and then the fan blade drives the rotary pipe to rotate. During the rotation of the rotary pipe, the wastewater is stirred by the stirring rod. And since the aeration pipe rotates synchronously with the stirring rod, the air is evenly introduced into the wastewater. Description of the Drawings

[0024] Figure 1This is the schematic structural diagram of the whole invention.

[0025] Figure 2 This is the schematic structural diagram inside the processing box of the invention.

[0026] Figure 3 This is the schematic structural diagram at the waste collection box of the invention.

[0027] Figure 4 This is the schematic structural diagram of the rotating rack of the invention.

[0028] Figure 5 This is the schematic cross-sectional structural diagram of the fixing plate of the invention.

[0029] Figure 6 This is the schematic structural diagram at the sliding scraping bar of the invention.

[0030] Figure 7 This is the schematic structural diagram of the T-shaped sliding rod of the invention.

[0031] Figure 8 This is the schematic structural diagram inside the processing pool of the invention.

[0032] Figure 9 This is the schematic structural diagram at the lifting connecting rod of the invention.

[0033] Figure 10 This is the schematic cross-sectional structural diagram of the air injection pipe of the invention.

[0034] Figure 11 This is the schematic cross-sectional structural diagram of the aeration cylinder of the invention.

[0035] Figure 12 This is the schematic structural diagram at the fan inside the rotating pipe of the invention.

[0036] Figure 13 This is the schematic cross-sectional structural diagram of the stirring rod of the invention.

[0037] In the figure: 1. Processing tank, 1001. Air inlet, 1002. Upper partition board, 1003. Lower partition board, 1004. Waste residue support plate, 101. Waste water inlet, 102. Outlet, 103. Control motor, 104. Transmission shaft, 105. Fixed plate, 1051. Coarse filter plate, 1052. Bottom baffle plate, 106. Connecting pipe, 2. Waste material collection frame, 201. Fixed disk, 202. Screw conveyor roller, 203. Rotating fishing plate, 204. Sliding scraping frame, 205. Rotating frame, 206. Rotating rod, 207. Rotating connecting rod, 208. Torsion spring, 209. Poking plate, 210. Wedge block, 211. Rotating cam, 212. Connecting rod, 3. T-shaped slide bar, 301. Lifting frame, 302. Sliding scraping bar, 4. Rotating shaft, 401. Bevel gear transmission part, 402. Scraping material turntable, 403. Air injection pipe, 404. Air outlet disk, 405. Partition board, 406. Check valve, 407. Lifting connecting rod, 408. L-shaped slide bar, 409. Air injection piston, 410. Delivery pipe, 5. Extrusion baffle disk, 501. Tension spring, 6. Aeration cylinder, 601. Fixed column, 602. Cam transmission group, 6021. Rotating aeration rod, 6022. Aeration piston, 603. Air inlet pipe, 604. Conical acceleration pipe, 605. Rotating pipe, 6051. Fan blade, 606. Stirring rod, 607. Aeration pipe, 608. Blocking plug, 609. Spring. Detailed implementation manner

[0038] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0039] Embodiment 1: A continuous waste water treatment device, such as Figures 1-13As shown in the figure, it includes a treatment tank 1, an upper partition plate 1002, a lower partition plate 1003, a wastewater inlet 101, an outlet 102, a control motor 103, a transmission shaft 104, a fixed plate 105, a coarse filter plate 1051, a bottom baffle 1052, a connecting pipe 106, a waste collection frame 2, a fixed disk 201, a rotary salvage mechanism and an air flotation impurity removal mechanism. An upper partition plate 1002 and a lower partition plate 1003 are fixedly connected inside the treatment tank 1. The upper partition plate 1002 and the lower partition plate 1003 separate the treatment tank 1 into upper, middle and lower layers. A wastewater inlet 101 is opened at the top of the treatment tank 1, and an outlet 102 is fixedly connected to the bottom of the treatment tank 1. Domestic wastewater is poured into the treatment tank 1 through the wastewater inlet 101. After being treated in the treatment tank 1, the wastewater is discharged outwards from the outlet 102 at its bottom. A control motor 103 is fixedly connected outside the treatment tank 1, and a transmission shaft 104 is rotatably connected inside the treatment tank 1. The output shaft of the control motor 103 is fixedly connected to the transmission shaft 104. A fixed plate 105 and a bottom baffle 1052 are fixedly connected inside the treatment tank 1. Both the fixed plate 105 and the bottom baffle 1052 are located in the upper layer inside the treatment tank 1. A coarse filter plate 1051 is fixedly connected between the fixed plate 105 and the bottom baffle 1052. The coarse filter plate 1051 filters the wastewater entering the treatment tank 1 to block large solid wastes in the wastewater. A connecting pipe 106 is fixedly connected outside the treatment tank 1. The connecting pipe 106 connects the upper layer and the middle layer inside the treatment tank 1. A fixed disk 201 is fixedly connected inside the treatment tank 1, and a waste collection frame 2 is fixedly connected inside the fixed disk 201. The waste collection frame 2 is located inside the treatment tank 1. The rotary salvage mechanism is rotatably installed inside the treatment tank 1. The rotary salvage mechanism salvages large solid wastes in the treatment tank 1 and collects them into the waste collection frame 2. The air flotation impurity removal mechanism is installed inside the treatment tank 1. The air flotation impurity removal mechanism removes small particle wastes in the wastewater.

[0040] This device is installed on an ocean-going ship and is used to treat domestic wastewater on the ship. After the device is started, when domestic wastewater is produced on the ship, the domestic wastewater will be added into the treatment tank 1 from the wastewater inlet 101. Since the domestic wastewater on the ship is generated intermittently, the speed at which the domestic wastewater is injected into the treatment tank 1 is relatively slow. When the wastewater enters the treatment tank 1, it will first pass through the waste collection frame 2 and fall on the top of the upper partition board 1002. Some of the waste in the domestic wastewater will be retained in the waste collection frame 2. At this time, the control motor 103 is started, and the control motor 103 drives the rotary salvage mechanism to operate through the transmission shaft 104. The rotary salvage mechanism will salvage the solid waste in the domestic wastewater in the upper layer of the treatment tank 1 and send it into the waste collection frame 2. As the amount of domestic wastewater in the treatment tank 1 continuously increases, the domestic wastewater will gradually rise to a height flush with the bottom baffle 1052. As the domestic wastewater continues to be discharged into the treatment tank 1, the domestic wastewater on the top of the upper partition board 1002 will pass through the coarse filter plate 1051 and flow to the right end of the upper layer of the treatment tank 1, and then flow from the right end of the upper layer of the treatment tank 1 to the right end of the middle layer. The control motor 103 can also drive the air flotation impurity removal mechanism to operate through the transmission shaft 104. When the air flotation impurity removal mechanism operates, it will treat the domestic wastewater at the right end of the middle layer of the treatment tank 1 to remove small particles, grease and other wastes therein.

[0041] Embodiment 2: On the basis of Embodiment 1, as Figures 2-5 shown, the rotary salvage mechanism includes a rotary salvage plate 203, a rotary frame 205, a rotary cam 211, a connecting rod 212 and a slag scraping assembly. The rotary cam 211 is rotatably connected in the fixed plate 105, and the rotary cam 211 is also rotatably connected to the transmission shaft 104. The two rotary cams 211 are connected by a connecting rod 212. The rotary frame 205 is rotatably connected in the treatment tank 1. The rotary cam 211 in the fixed plate 105 is fixedly connected to the rotary frame 205. The rotary salvage plate 203 is fixedly connected to the rotary frame 205. The rotary salvage plate 203 is provided with water permeable holes. The rotary salvage plate 203 rotates with the rotary frame 205 and scoops up the large solid waste in the wastewater. The slag scraping assembly is installed in the rotary frame 205 and is used to scrape the salvaged waste from the rotary salvage plate 203 and make it fall into the waste collection frame 2.

[0042] After the control motor 103 is started, under the action of the connecting rod 212 and the transmission shaft 104, the two rotating cams 211 rotate synchronously. When the rotating cam 211 in the fixed plate 105 rotates, it drives the rotating frame 205 to rotate. During the rotation of the rotating frame 205, the rotating salvage plate 203 rotates accordingly. When the rotating salvage plate 203 rotates in the domestic wastewater in the treatment box 1, it will salvage the solid waste in the domestic wastewater. When the rotating salvage plate 203 rotates to the top opening of the waste collection frame 2, the scraping assembly will run and scrape the waste salvaged by the rotating salvage plate 203 into the waste collection frame 2 for recycling. As the rotating salvage plate 203 continues to rotate, the scraping assembly will automatically move and reset.

[0043] like Figures 2-4 As shown, the scraping assembly includes a sliding scraping frame 204, a rotating rod 206, a rotating connecting rod 207, a torsion spring 208, a toggle plate 209 and a wedge block 210. The rotating salvage plate 203 is slidably connected to the sliding scraping frame 204. The sliding scraping frame 204 slides along the rotating salvage plate 203 to scrape the waste on its surface into the waste collection frame 2. The rotating frame 205 is rotatably connected to the rotating rod 206. The end of the rotating rod 206 away from the rotating frame 205 is rotatably connected to the rotating connecting rod 207. The other end of the rotating connecting rod 207 is rotatably connected to the sliding scraping frame 204. A toggle plate 209 is fixedly connected to the movable rod 206, and a torsion spring 208 is provided between the toggle plate 209 and the rotating frame 205. The torsion spring 208 is used to drive the rotating rod 206 to rotate and reset around the rotating frame 205 through the toggle plate 209. The two ends of the torsion spring 208 are respectively fixed to the toggle plate 209 and the rotating frame 205. A wedge block 210 is fixedly connected to the inner side of the fixed disk 201 and the fixed plate 105 at the same height. The toggle plate 209 will contact the wedge block 210 during the rotation of the rotating frame 205, and then rotate around the rotating frame 205 under the action of the wedge block 210.

[0044] During the rotation of the rotating frame 205, the rotating rod 206, the rotating connecting rod 207, the torsion spring 208, and the toggle plate 209 rotate accordingly, and the sliding scraper frame 204 is at the outermost edge of the rotating salvage plate 203 and rotates accordingly. When the rotating salvage plate 203 rotates to the top opening of the waste collection frame 2, the toggle plate 209 will contact the wedge block 210. As the rotating frame 205 continues to rotate, under the action of the wedge block 210, the toggle plate 209 will drive the rotating rod 206 to rotate around the rotating frame 205. At this time, the torsion spring 208 accumulates force and deforms, and the rotating rod 206 pulls the sliding scraper frame 204 along the outermost edge of the rotating salvage plate 203 through the rotating connecting rod 207. The rotating salvage plate 203 slides to scrape off the waste stuck on the surface of the rotating salvage plate 203. When the toggle plate 209 is out of contact with the wedge block 210, the sliding scraper frame 204 just slides to the end of the rotating salvage plate 203 close to the rotating frame 205. At this time, under the action of the torsion spring 208, the rotating rod 206 rotates around the rotating frame 205 to reset, and the toggle plate 209 is reset accordingly. Since the rotating salvage plate 203 rotates with the rotating frame 205 at this time, the sliding scraper frame 204 is subjected to a certain centrifugal force, and the sliding scraper frame 204 slides and resets along the rotating salvage plate 203, and the rotating connecting rod 207 is also reset accordingly.

[0045] like Figures 8-10As shown in the figure, the air flotation impurity removal mechanism includes an air inlet 1001, a waste residue support plate 1004, a rotating shaft 4, a bevel gear transmission part 401, a scraping turntable 402, an air injection pipe 403, an air outlet disc 404, a partition plate 405, a one-way air valve 406, a lifting connecting rod 407, an L-shaped sliding rod 408, an air injection piston 409 and a conveying pipe 410. The rotating shaft 4 is rotatably connected inside the upper partition plate 1002. The rotating shaft 4 is connected to the transmission shaft 104 through the bevel gear transmission part 401. The transmission shaft 104 drives the rotating shaft 4 to rotate through the bevel gear transmission part 401. The bottom of the rotating shaft 4 passes through the upper partition plate 1002 and is fixedly connected with the scraping turntable 402. A scraping rod is installed at the bottom of the scraping turntable 402. The scraping turntable 402 rotates with the rotating shaft 4. The partition plate 405 is fixedly connected inside the treatment tank 1. The air injection pipe 403 is fixedly connected inside the partition plate 405. The other end of the air injection pipe 403 is fixedly connected with the air outlet disc 404. Air holes are opened on the partition plate 405, and the air holes are communicated with the air injection pipe 403. The one-way air valve 406 is installed in the air holes on the partition plate 405. The air inlet 1001 is opened on the front side of the treatment tank 1, and the air inlet 1001 is communicated with the air holes on the partition plate 405. The L-shaped sliding rod 408 is slidably connected inside the bottom baffle 1052. The lifting connecting rod 407 is hinged on the connecting rod 212, and the other end of the lifting connecting rod 407 is hinged on the L-shaped sliding rod 408. During the rotation of the rotating cam 211, the L-shaped sliding rod 408 is driven to slide up and down along the bottom baffle 1052 through the connecting rod 212 and the lifting connecting rod 407. The air injection piston 409 is slidably connected inside the air injection pipe 403. The bottom of the L-shaped sliding rod 408 is fixedly connected with the air injection piston 409. When the L-shaped sliding rod 408 drives the air injection piston 409 to move up and down, high-pressure gas will be ejected outwards through the air outlet disc 404 to form microbubbles in the wastewater. The conveying pipe 410 is fixedly connected to the lower partition plate 1003. One end of the conveying pipe 410 passes through the partition plate 405 and is equipped with a valve. The other end of the conveying pipe 410 passes through the lower partition plate 1003. The conveying pipe 410 communicates the middle layer and the lower layer of the treatment tank 1. The waste residue support plate 1004 is fixedly connected inside the treatment tank 1. The waste residue support plate 1004 is located above the conveying pipe 410, and the waste residue support plate 1004 is used to receive the waste scraped from the top of the wastewater by the scraping turntable 402.

[0046] After domestic wastewater passes through the coarse filter plate 1051, it will flow into the treatment tank 1 along the conveying pipe 410 and into the treatment pool on the right side of the partition plate 405 in the middle layer. When the top surface of the domestic wastewater in the treatment pool is flush with the top surface of the partition plate 405, close the valve at the bottom of the connecting pipe 106. During the process of controlling the motor 103 to drive the transmission shaft 104 to rotate, the transmission shaft 104 drives the rotating shaft 4 to rotate through the bevel gear transmission part 401. The rotating shaft 4 drives the scraping turntable 402 to rotate. When the transmission shaft 104 rotates, it drives the lifting connecting rod 407 to move up and down through the rotating cam 211 and the connecting rod 212. The lifting connecting rod 407 drives the L-shaped sliding rod 408 to slide up and down along the bottom baffle 1052. During the sliding process of the L-shaped sliding rod 408, it drives the air injection piston 409 to slide up and down along the air injection pipe 403. When the air injection piston 409 rises, under the action of the one-way air valve 406, it will draw high-pressure gas from the air inlet 1001 into the air injection pipe 403. When the air injection piston 409 descends, it will eject the pressurized gas in the air injection pipe 403 outwards from the air outlet plate 404. The air outlet plate 404 is a prior art. The gas discharged through the air outlet plate 404 forms microbubbles. The microbubbles will combine with the tiny particles and waste such as grease in the domestic wastewater to form a bubble-particle complex. The complex floats upwards to the top surface of the domestic wastewater under the action of buoyancy. During the rotation of the scraping turntable 402, the waste residue on the surface of the domestic wastewater will be pushed to the other end of the partition plate 405 through the scraping rod at its bottom. The waste residue on the surface of the domestic wastewater will eventually be pushed to the top of the waste residue support plate 1004. After treating the domestic wastewater in the treatment pool for a certain period of time using the air flotation method, the waste in the domestic wastewater is cleared. At this time, open the valve at the right end of the conveying pipe 410, and the treated domestic wastewater in the treatment pool will be sent to the lower layer of the treatment tank 1 along the conveying pipe 410. When the treated domestic wastewater in the treatment pool is processed, close the valve at the right end of the conveying pipe 410. Then open the valve at the bottom of the connecting pipe 106, and the domestic wastewater at the right end of the upper layer of the treatment tank 1 will flow down along the connecting pipe 106 into the treatment pool and repeat the above process.

[0047] Embodiment 3: On the basis of Embodiment 2, as Figure 6 and Figure 7 shown, it further includes an anti-blocking component for preventing the coarse filter plate 1051 from being blocked. The anti-blocking component includes a T-shaped sliding rod 3, a lifting frame 301, and a sliding scraping strip 302. The T-shaped sliding rod 3 is slidably connected in the fixed plate 105. The T-shaped sliding rod 3 contacts the rotating cam 211 in the fixed plate 105. During the rotation of the rotating cam 211, the T-shaped sliding rod 3 is pushed and slides up and down along the fixed plate 105. The lifting frame 301 is slidably connected outside the fixed plate 105. The T-shaped sliding rod 3 is fixedly connected to the lifting frame 301. The sliding scraping strip 302 is slidably connected in the treatment tank 1. The sliding scraping strip 302 contacts the coarse filter plate 1051. The sliding scraping strip 302 is fixedly connected to the lifting frame 301. The sliding scraping strip 302 can clean the coarse filter plate 1051.

[0048] During the rotation of the rotary cam 211 on the fixed plate 105, the rotary cam 211 will push the T-shaped slide bar 3 and the lifting frame 301 to slide upward along the fixed plate 105. When the protruding part of the rotary cam 211 rotates to the highest point, the T-shaped slide bar 3 slides upward to the highest point. Subsequently, as the rotary cam 211 continues to rotate, the T-shaped slide bar 3 and the lifting frame 301 will slide downward and reset under the influence of their own gravity. During the up and down movement of the T-shaped slide bar 3 and the lifting frame 301, the sliding scraper 302 will be driven to slide up and down along the coarse filter plate 1051 to clean the surface of the coarse filter plate 1051.

[0049] As Figure 3 and Figure 8 shown, it further includes an extrusion assembly for squeezing out the sewage in the picked-up large debris. The extrusion assembly includes a spiral conveyor roller 202, an extrusion baffle 5 and a tension spring 501. The spiral conveyor roller 202 is fixedly connected inside the rotary frame 205. The spiral conveyor roller 202 is located inside the waste collection box 2. An extrusion baffle 5 is sleeved outside the spiral conveyor roller 202. The extrusion baffle 5 is connected to the fixed disk 201 through a tension spring 501. One end of the tension spring 501 is fixed on the extrusion baffle 5, and the other end is fixed on the fixed disk 201.

[0050] When the rotary frame 205 rotates, it will drive the spiral conveyor roller 202 to rotate. When the spiral conveyor roller 202 rotates, it will push the waste in the waste collection box 2 towards the extrusion baffle 5. As the waste accumulates continuously at the extrusion baffle 5, the extrusion force on the waste on one side of the extrusion baffle 5 increases continuously, and the water in the waste is squeezed out. When the amount of waste near the extrusion baffle 5 in the waste collection box 2 increases to a certain amount, the spiral conveyor roller 202 continues to convey waste towards the extrusion baffle 5. Under the push of the waste, the extrusion baffle 5 is pushed and slides away along the rotating shaft of the spiral conveyor roller 202, and the tension spring 501 is stretched. A gap appears between the extrusion baffle 5 and the left end of the waste collection box 2, and the waste at the leftmost end in the waste collection box 2 falls outwards from the gap. After the waste is extruded, the tension spring 501 will pull the extrusion baffle 5 to slide back to its original position and cover the left end outlet 102 of the waste collection box 2 again. The spiral conveyor roller 202 continuously conveys waste to the left. With the cooperation of the extrusion baffle 5 and the tension spring 501, the waste will be extruded and sent out from the left end outlet 102 of the waste collection box.

[0051] As Figure 8 and Figures 11-13As shown, it further includes an aeration mechanism for aerating the filtered wastewater. The aeration mechanism includes an aeration cylinder 6, a fixed column 601, a cam drive group 602, a rotating aeration rod 6021, an aeration piston 6022, an intake pipe 603, a rotating pipe 605, an aeration pipe 607, and a rotating stirring assembly. An aeration cylinder 6 is fixedly connected to the outside of the treatment tank 1. A fixed column 601 is fixedly connected to the aeration cylinder 6. The fixed column 601 is connected to the spiral conveyor roller 202 through the cam drive group 602. The spiral conveyor roller 202 drives the cam drive group 602 to rotate. An aeration piston 6022 is slidably connected inside the aeration cylinder 6. The top of the aeration piston 6022 is rotatably connected to a rotating aeration rod 6021. The top of the rotating aeration rod 6021 is rotatably connected inside the cam drive group 602. An intake pipe 603 is fixedly connected to the outside of the aeration cylinder 6. The intake pipe 603 is communicated with the aeration cylinder 6. A rotating pipe 605 is rotatably connected inside the treatment tank 1. An aeration pipe 607 is provided outside the rotating pipe 605. The aeration cylinder 6 is communicated with the rotating pipe 605. An aeration pipe 607 is fixedly connected to the outside of the rotating pipe 605. The rotating pipe 605 is communicated with the aeration pipe 607. The aeration piston 6022 can discharge the gas inside the aeration cylinder 6 to the outside through the rotating pipe 605 from the aeration pipe 607.

[0052] The treated domestic wastewater is sent to the lower layer of the treatment tank 1 through the conveying pipe 410. When the spiral conveyor roller 202 rotates, it will drive the rotating aeration rod 6021 to move up and down through the cam drive group 602. The rotating aeration rod 6021 drives the aeration piston 6022 to slide up and down inside the aeration cylinder 6. When the aeration piston 6022 rises, it will draw external gas into the aeration cylinder 6 from the intake pipe 603. When the aeration piston 6022 descends, it will push the gas inside the aeration cylinder 6 into the rotating pipe 605. The gas inside the rotating pipe 605 is finally injected into the domestic wastewater in the lower layer of the treatment tank 1 through the aeration pipe 607. When pumping air into the rotating pipe 605, the rotating pipe 605 will be driven to rotate under the drive of the rotating stirring assembly to uniformly inject air into the domestic wastewater.

[0053] As Figure 11 and Figure 12 shown, the rotating stirring assembly includes a conical acceleration pipe 604, a fan blade 6051, and a stirring rod 606. The aeration cylinder 6 is connected to the rotating pipe 605 through the conical acceleration pipe 604. The gas inside the aeration cylinder 6 flows into the rotating pipe 605 through the conical acceleration pipe 604 after being accelerated. A fan blade 6051 is fixedly connected inside the rotating pipe 605. The fan blade 6051 inside the rotating pipe 605 rotates under the blowing of the high-speed air flow. A stirring rod 606 is fixedly connected to the outside of the rotating pipe 605. The stirring rod 606 is sleeved outside the aeration pipe 607. The stirring rod 606 rotates with the rotating pipe 605 to stir the wastewater, and at the same time drives the aeration pipe 607 to rotate to uniformly inject air into the wastewater.

[0054] When the aeration piston 6022 moves downward along the aeration cylinder 6 and pushes the gas inside it outward, the gas in the aeration cylinder 6 flows into the rotating tube 605 through the conical acceleration tube 604. Since the inlet of the conical acceleration tube 604 is large and the outlet is small, the air flow will be accelerated after passing through the conical acceleration tube 604. The air flow after passing through the conical acceleration tube 604 enters the rotating tube 605 and contacts the fan blades 6051 inside it. The fan blades 6051 are driven by the impact of the high-speed air flow to drive the rotating tube 605 to rotate, and the stirring rod 606 outside the rotating tube 605 rotates accordingly and stirs the domestic wastewater.

[0055] As Figure 12 and Figure 13 shown, it further includes a blocking assembly for preventing the wastewater from flowing back into the rotating tube 605. The blocking assembly includes a blocking plug 608 and a spring 609. The blocking plug 608 is slidably connected to the stirring rod 606, and the blocking plug 608 and the stirring rod 606 are connected by a spring 609. One end of the spring 609 is fixed on the blocking plug 608, and the other end is fixed on the stirring rod 606. Under the action of the spring 609, the blocking plug 608 is pressed tightly at the air outlet of the aeration pipe 607.

[0056] The blocking plug 608 is pressed tightly at the air outlet of the aeration pipe 607 by the spring 609. When the aeration piston 6022 slides downward along the aeration cylinder 6, under the impact of the air flow, the blocking plug 608 is pushed open by the gas and compresses the spring 609, so that the air flow enters the domestic wastewater from the air outlet of the aeration pipe 607. When the aeration piston 6022 slides upward along the aeration cylinder 6, under the push of the spring 609, the blocking plug 608 is pressed again at the air outlet of the aeration pipe 607 to prevent the domestic wastewater from flowing back into the aeration pipe 607.

[0057] A continuous wastewater treatment method using the above continuous wastewater treatment equipment includes the following steps:

[0058] The first step: Add domestic wastewater into the treatment tank 1 through the wastewater inlet 101, start the control motor 103, and the control motor 103 drives the rotating frame 205 to rotate through the transmission shaft 104. The rotating salvage plate 203 on the rotating frame 205 picks up the large-particle waste materials in the domestic wastewater during the rotation process, and as the rotating salvage plate 203 rotates continuously, the picked-up waste materials will fall into the waste material collection frame 2 for recycling. After the wastewater passes over the bottom baffle 1052, it will pass through the coarse filter plate 1051, and the large-particle waste materials in the wastewater are blocked by the coarse filter plate 1051;

[0059] Step 2: The wastewater passing through the coarse filter plate 1051 will flow along the connecting pipe 106 to the treatment pool between the upper partition plate 1002, the lower partition plate 1003 and the partition plate 405. When the top surface of the wastewater in the treatment pool is flush with the top surface of the partition plate 405, the bottom valve of the connecting pipe 106 is closed. At this time, as the control motor 103 continues to rotate, the transmission shaft 104 drives the lifting connecting rod 407 to move up and down through the rotating cam 211 and the connecting rod 212, and then drives the pumping piston 409 to move up and down through the L-shaped sliding rod 408, and injects gas into the treatment pool through the gas outlet plate 404. The gas in the treatment box 1 enters the gas outlet plate 404. Microbubbles are formed, and during the upward floating process, the microbubbles will combine with the solid particles in the wastewater to form a bubble-particle complex, and finally the complex floats to the water surface, and the scraper turntable 402 pushes the complex on the top surface of the wastewater from the top of the partition plate 405 to the waste residue support plate 1004. After a period of treatment, the solid particles in the wastewater are removed, and the valve on the delivery pipe 410 is opened at this time. When all the wastewater in the treatment tank flows out along the delivery pipe 410, the valve on the delivery pipe 410 is closed, and then the valve on the connecting pipe 106 is opened, and the wastewater filtered by the coarse filter plate 1051 enters the treatment tank again for treatment;

[0060] Step 3: The wastewater treated by flotation flows into the aeration tank at the bottom of the treatment box 1 through the conveying pipe 410, and the transmission shaft 104 drives the cam transmission group 602 to rotate through the spiral conveying roller 202. The cam transmission group 602 drives the aeration piston 6022 to move up and down by rotating the aeration rod 6021. The aeration piston 6022 injects external air into the wastewater in the aeration tank through the aeration pipe 607 on the rotating tube 605 to aerate the wastewater. The water after aeration treatment flows out from the outlet 102 at the bottom of the treatment box 1.

[0061] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A continuous wastewater treatment device, characterized in that, It includes a treatment tank (1), an upper partition plate (1002), a lower partition plate (1003), a waste water inlet (101), an outlet (102), a control motor (103), a transmission shaft (104), a fixing plate (105), a coarse filter plate (1051), a bottom baffle (1052), a connecting pipe (106), a waste collection frame (2), a fixing disk (201), a rotary fishing mechanism and an air flotation impurity removal mechanism. An upper partition plate (1002) and a lower partition plate (1003) are fixedly connected inside the treatment tank (1). The upper partition plate (1002) and the lower partition plate (1003) separate the treatment tank (1) and form upper, middle and lower layers. A waste water inlet (101) is opened at the top of the treatment tank (1), and an outlet (102) is fixedly connected to the bottom of the treatment tank (1). A control motor (103) is fixedly connected outside the treatment tank (1). A transmission shaft (104) is rotatably connected inside the treatment tank (1). The output shaft of the control motor (103) is fixedly connected to the transmission shaft (104). A fixing plate (105) and a bottom baffle (1052) are fixedly connected inside the treatment tank (1). A coarse filter plate (1051) is fixedly connected between the fixing plate (105) and the bottom baffle (1052). A connecting pipe (106) is fixedly connected outside the treatment tank (1). The connecting pipe (106) communicates the upper layer and the middle layer inside the treatment tank (1). A fixing disk (201) is fixedly connected inside the treatment tank (1). A waste collection frame (2) is fixedly connected inside the fixing disk (201). The rotary fishing mechanism is rotatably installed inside the treatment tank (1). The rotary fishing mechanism fishes out large solid wastes inside the treatment tank (1) and collects them into the waste collection frame (2). The air flotation impurity removal mechanism is installed inside the treatment tank (1). The air flotation impurity removal mechanism removes small particle wastes in the waste water.

2. The continuous wastewater treatment equipment according to claim 1, characterized in that, The rotary fishing mechanism includes a rotary fishing plate (203), a rotary frame (205), a rotary cam (211), a connecting rod (212) and a slag scraping component. A rotary cam (211) is rotatably connected inside the fixing plate (105). A rotary cam (211) is also rotatably connected on the transmission shaft (104). The two rotary cams (211) are connected by a connecting rod (212). A rotary frame (205) is rotatably connected inside the treatment tank (1). The rotary cam (211) inside the fixing plate (105) is fixedly connected to the rotary frame (205). A rotary fishing plate (203) is fixedly connected to the rotary frame (205). The slag scraping component is installed inside the rotary frame (205). The slag scraping component is used to scrape the fished wastes from the rotary fishing plate (203) and make them fall into the waste collection frame (2).

3. A continuous wastewater treatment device according to claim 2, characterized in that, The scraping assembly comprises a sliding scraping frame (204), a rotating rod (206), a rotating connecting rod (207), a torsion spring (208), a toggle plate (209) and a wedge block (210); the rotating salvaging plate (203) is externally slidably connected to the sliding scraping frame (204); the rotating frame (205) is internally rotatably connected to the rotating rod (206); the rotating rod (206) is rotatably connected to one end away from the rotating frame (205); the rotating connecting rod (207) is rotatably connected to the rotating frame (205); The other end of the connecting rod (207) is rotatably connected to the sliding scraper frame (204), a toggle plate (209) is fixedly connected to the rotating rod (206), a torsion spring (208) is provided between the toggle plate (209) and the rotating frame (205), a wedge block (210) is fixedly connected to the inner side of the fixed disk (201) and the fixed plate (105) at the same height, and the toggle plate (209) will contact the wedge block (210) during the rotation of the rotating frame (205).

4. A continuous wastewater treatment device according to claim 2, characterized in that, The air flotation impurity removal mechanism comprises an air inlet (1001), a waste residue support plate (1004), a rotating shaft (4), a bevel gear transmission member (401), a scraper turntable (402), an air pumping pipe (403), an air outlet plate (404), a partition plate (405), a one-way air valve (406), a lifting connecting rod (407), an L-shaped sliding rod (408), an air pumping piston (409) and a conveying pipe (410). The upper partition plate (1002) is rotatably connected to the rotating shaft (4), and the rotating shaft (4) The rotary shaft (4) is connected to the transmission shaft (104) through a bevel gear transmission member (401); the bottom of the rotary shaft (4) passes through the upper partition plate (1002) and is fixedly connected to a scraper turntable (402); a partition plate (405) is fixedly connected to the processing box (1); an air pumping pipe (403) is fixedly connected to the partition plate (405); the other end of the air pumping pipe (403) is fixedly connected to an air outlet plate (404); an air hole is opened on the partition plate (405), and the air hole is connected to the air pumping pipe (403); A one-way air valve (406) is installed in the air hole, an air inlet (1001) is opened on the front side of the processing box (1), and the air inlet (1001) is connected to the air hole on the partition plate (405). An L-shaped slide bar (408) is slidably connected in the bottom baffle (1052), a lifting connecting rod (407) is hinged on the connecting rod (212), and the other end of the lifting connecting rod (407) is hinged on the L-shaped slide bar (408). An air pumping piston (409) is slidably connected in the air pumping pipe (403). The bottom of the slide rod (408) is fixedly connected to the pumping piston (409), and a delivery pipe (410) is fixedly connected to the lower partition (1003). One end of the delivery pipe (410) passes through the partition plate (405) and is equipped with a valve, and the other end of the delivery pipe (410) passes through the lower partition (1003). The delivery pipe (410) connects the middle layer and the lower layer of the processing box (1). A waste residue support plate (1004) is fixedly connected in the processing box (1), and the waste residue support plate (1004) is located at the top of the delivery pipe (410).

5. A continuous wastewater treatment device according to claim 2, characterized in that, It further includes an anti-blocking component for preventing the coarse filter plate (1051) from being blocked. The anti-blocking component includes a T-shaped slide bar (3), a lifting frame (301), and a sliding scraping bar (302). The T-shaped slide bar (3) is slidably connected inside the fixed plate (105), the lifting frame (301) is slidably connected outside the fixed plate (105), the T-shaped slide bar (3) is fixedly connected to the lifting frame (301), the sliding scraping bar (302) is slidably connected inside the treatment tank (1), and the sliding scraping bar (302) is fixedly connected to the lifting frame (301).

6. The continuous wastewater treatment equipment according to claim 2, characterized in that, It further includes an extrusion component for squeezing out the sewage in the fished large debris. The extrusion component includes a spiral conveyor roller (202), an extrusion baffle (5), and a tension spring (501). The spiral conveyor roller (202) is fixedly connected inside the rotating frame (205). The spiral conveyor roller (202) is located inside the waste collection box (2). An extrusion baffle (5) is sleeved outside the spiral conveyor roller (202). The extrusion baffle (5) is connected to the fixed disk (201) through a tension spring (501).

7. A continuous wastewater treatment device according to claim 6, characterized in that, It further includes an aeration mechanism for aerating the filtered wastewater. The aeration mechanism includes an aeration cylinder (6), a fixed column (601), a cam drive group (602), a rotating aeration rod (6021), an aeration piston (6022), an intake pipe (603), a rotating pipe (605), an aeration pipe (607), and a rotating stirring component. The aeration cylinder (6) is fixedly connected outside the treatment tank (1). The fixed column (601) is fixedly connected to the aeration cylinder (6). The fixed column (601) is connected to the spiral conveyor roller (202) through the cam drive group (602). The aeration piston (6022) is slidably connected inside the aeration cylinder (6). The top of the aeration piston (6022) is rotatably connected to the rotating aeration rod (6021). The top of the rotating aeration rod (6021) is rotatably connected inside the cam drive group (602). The intake pipe (603) is fixedly connected outside the aeration cylinder (6). The intake pipe (603) is communicated with the aeration cylinder (6). The rotating pipe (605) is rotatably connected inside the treatment tank (1). The aeration pipe (607) is arranged outside the rotating pipe (605). The aeration cylinder (6) is communicated with the rotating pipe (605). The aeration pipe (607) is fixedly connected outside the rotating pipe (605). The rotating pipe (605) is communicated with the aeration pipe (607).

8. A continuous wastewater treatment device according to claim 7, characterized in that, The rotating stirring component includes a conical acceleration pipe (604), a fan blade (6051), and a stirring rod (606). The aeration cylinder (6) is connected to the rotating pipe (605) through the conical acceleration pipe (604). The fan blade (6051) is fixedly connected inside the rotating pipe (605). The stirring rod (606) is fixedly connected outside the rotating pipe (605). The stirring rod (606) is sleeved outside the aeration pipe (607).

9. A continuous wastewater treatment device according to claim 8, characterized in that, It further includes a blocking component for preventing the wastewater from flowing back into the rotating pipe (605). The blocking component includes a blocking plug (608) and a spring (609). The blocking plug (608) is slidably connected to the stirring rod (606). The blocking plug (608) is connected to the stirring rod (606) through a spring (609).

10. A continuous wastewater treatment method, characterized in that, Adopting a wastewater continuous treatment device as described in claims 1-9, it includes the following steps: The first step: Add domestic wastewater into the treatment tank (1) through the wastewater inlet (101). Start the control motor (103). The control motor (103) drives the rotating frame (205) to rotate through the transmission shaft (104). The rotating salvage plate (203) on the rotating frame (205) picks up large particle waste in the domestic wastewater during rotation. And as the rotating salvage plate (203) continuously rotates, the picked-up waste will fall into the waste collection frame (2) for recycling. After the wastewater submerges the bottom baffle (1052), it will pass through the coarse filter plate (1051), while the large particle waste in the wastewater is blocked by the coarse filter plate (1051); The second step: The wastewater passing through the coarse filter plate (1051) will flow along the connecting pipe (106) into the treatment tank between the upper partition plate (1002), the lower partition plate (1003) and the partition plate (405). When the top surface of the wastewater in the treatment tank is flush with the top surface of the partition plate (405), close the valve at the bottom of the connecting pipe (106). At this time, as the control motor (103) continuously rotates, the transmission shaft (104) drives the lifting connecting rod (407) to move up and down through the rotating cam (211) and the connecting rod (212). Then, through the L-shaped sliding rod (408), it drives the air injection piston (409) to move up and down and inject gas into the treatment tank through the air outlet plate (404). The gas entering the treatment tank (1) through the air outlet plate (404) forms microbubbles. During the upward floating process of the microbubbles, they will combine with the solid particles in the wastewater to form bubble-particle complexes. Eventually, the complexes will float to the water surface. The scraping turntable (402) pushes the complexes on the top surface of the wastewater from the top of the partition plate (405) to the waste residue support plate (1004). After a period of treatment, the solid particles in the wastewater are removed. At this time, open the valve on the delivery pipe (410). When all the wastewater in the treatment tank flows out along the delivery pipe (410), close the valve on the delivery pipe (410), and then open the valve on the connecting pipe (106). The wastewater filtered by the coarse filter plate (1051) enters the treatment tank again for treatment; The third step: The wastewater treated by the air flotation method flows into the aeration tank at the bottom of the treatment tank (1) through the delivery pipe (410). The transmission shaft (104) drives the cam drive group (602) to rotate through the spiral conveyor roller (202). The cam drive group (602) drives the aeration piston (6022) to move up and down through the rotating aeration rod (6021). The aeration piston (6022) injects external air into the wastewater in the aeration tank through the aeration pipe (607) on the rotating pipe (605) to perform aeration treatment on the wastewater. The water after aeration treatment flows out from the outlet (102) at the bottom of the treatment tank (1).

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