A sewage treatment device for clothing washing wastewater

Abstract

The present invention relates to the technical field of clothing washing wastewater treatment, and in particular to a sewage treatment device for clothing washing wastewater. It comprises an air flotation tank, a rotating ring is rotatably connected in the air flotation tank, a fixed ring located in the rotating ring is fixedly connected in the air flotation tank, an electric rotating frame that rotates with the air flotation tank is fixedly connected to the rotating ring, a salvage piece is rotatably connected to the electric rotating frame and the rotating ring, and a first liquid guide shell is fixedly connected to the rotating ring, a liquid guide tube is fixedly connected in the first liquid guide shell, and a filter plate with mirror distribution is arranged in the liquid guide tube. The present invention adopts the contact between impurities and the filter plate to realize the monitoring of impurities on the filter plate. After the filter plate is partially blocked, the filter plate is moved under the action of the increased suction force of the pumping device on the filter plate, thereby triggering the replacement of the drainage position in the discharge device, and realizing the effect of replacing the drainage position of the drainage device while maintaining the drainage volume of the drainage device.

Description

Technical Field

[0001] The invention relates to the technical field of clothing washing wastewater treatment, in particular to a sewage treatment device for clothing washing wastewater. Background Art

[0002] Garment washing wastewater is wastewater generated by the washing step in textile and garment manufacturing, which contains pollutants such as dyes, surfactants, fiber fragments, and other chemical additives. Since this type of wastewater contains a variety of pollutants, if it is discharged directly without treatment, it will have a serious impact on the environment, such as water pollution and impact on aquatic life. Therefore, the garment manufacturing industry needs to take effective water treatment measures to purify this type of wastewater to ensure that it meets the discharge standards.

[0003] The existing methods for treating clothing washing wastewater include: flotation, sedimentation, membrane treatment, etc. Among them, shallow flotation machines are widely used due to their high efficiency and low cost. The principle of shallow flotation machines is: first, the impurities in the wastewater are flocculated into flocs by flocculation, and then tiny bubbles are released to drive the flocs to float to the surface of the water body. Finally, the impurities are collected by the collection device on the surface of the water body. After the treatment of the flocs in the wastewater is completed, the remaining water in the shallow flotation machine is clean water.

[0004] In order to form water circulation in the shallow air flotation machine, a drainage device is generally installed on the side close to the bottom of the shallow air flotation machine. The suction generated by the drainage device in the process of discharging clean water will cause some impurities or floating objects that cannot float on the water surface to gather on the filter net at the drain outlet. After the filter net is blocked for a long time, the drainage volume will be reduced, which will not only slow down the water circulation speed, but also increase energy consumption because a stronger suction force is required to maintain drainage. Summary of the invention

[0005] In order to solve the problem that impurities or floating objects that cannot float on the water surface block the filter at the drainage outlet of the drainage equipment during the process of treating clothing washing wastewater by a shallow flotation machine, which slows down the water circulation speed and increases energy consumption, the present invention provides a sewage treatment device for clothing washing wastewater.

[0006] The technical solution of the present invention is as follows: a sewage treatment device for clothing washing wastewater, comprising an air flotation tank, a rotating ring rotatably connected in the air flotation tank, a fixed ring located in the rotating ring fixedly connected in the air flotation tank, a feed pipe fixedly connected to the air flotation tank, the feed pipe is rotatably connected and communicated with a material feeding piece fixedly connected to the rotating ring, the material feeding piece is provided with an infusion piece, the air flotation tank is fixedly connected with a sewage pipe, the sewage pipe is communicated with the rotating ring and the fixed ring, the sewage pipe is located between the rotating ring and the fixed ring, the rotating ring The moving ring is fixedly connected to an electric rotating frame which rotates with the flotation tank, the electric rotating frame and the rotating ring are connected to a salvage piece for rotation together, the rotating ring is fixedly connected to a first liquid guide shell, a liquid guide tube is fixedly connected in the first liquid guide shell, the rotating ring is fixedly connected to a liquid extraction tube connected to the liquid guide tube, a side of the liquid guide tube away from the liquid extraction tube is fixedly connected and connected to a connecting shell, a mirror-distributed filter plate is arranged on the side of the liquid guide tube away from the liquid extraction tube, a shielding plate is slidably connected in the connecting shell, and the shielding plate is used to block the liquid guide tube.

[0007] Furthermore, a first liquid storage part is fixedly connected to one side of the liquid guide tube, a spring fixedly connected to an adjacent filter plate is fixedly connected to the side of the liquid guide tube close to the first liquid storage part, a first seal is slidably connected to the first liquid storage part, the first seal is fixedly connected to the adjacent filter plate, a second liquid storage part is fixedly connected to the first liquid guide shell on one side close to the mirror-distributed filter plate, a second liquid storage part is slidably connected to the second liquid storage part, the second seal is fixedly connected to the baffle plate, a first spring pin which cooperates with the second seal in a limiting manner is fixedly connected to the first liquid guide shell, a first sliding plate is slidably connected to the second liquid storage part, a tension spring is fixedly connected between the first sliding plate and the second seal, a side of the first liquid storage part close to the adjacent filter plate is fixedly connected to the second liquid storage part and is connected to a connecting pipe, and hydraulic oil is stored in the first liquid storage part, the adjacent connecting pipe and the second liquid storage part.

[0008] Furthermore, a second liquid guiding shell is slidably connected inside the liquid guiding tube, and the second liquid guiding shell is provided with first liquid guiding holes and second liquid guiding holes distributed in a mirror image, and the second liquid guiding holes distributed in a mirror image are located between the first liquid guiding holes distributed in a mirror image, and all the first liquid guiding holes and second liquid guiding holes on the second liquid guiding shell are used to connect the liquid guiding tube with the liquid extraction tube.

[0009] Furthermore, a third liquid storage member is fixedly connected to a side of the first liquid guiding shell close to the second liquid guiding shell, a third sealing member is slidably connected inside the third liquid storage member, the third sealing member is fixedly connected to the second liquid guiding shell, a second sliding plate is slidably connected inside the third liquid storage member, a spring is fixedly connected between the second sliding plate and the third sealing member, the third liquid storage member is fixedly connected to an adjacent side of the first liquid storage member and is connected with a connecting pipe, hydraulic oil is stored in the third liquid storage member and the adjacent connecting pipe, and a second spring pin which cooperates with the third sealing member to limit the position is fixedly connected to the first liquid guiding shell.

[0010] Furthermore, a fourth liquid storage part is fixedly connected to the first liquid guiding shell and the side of the liquid guiding tube close to the first liquid storage part, a fourth sealing part is slidably connected in the fourth liquid storage part, a spring is fixedly connected between the fourth liquid storage part and the adjacent fourth sealing part, the fourth sealing part located in the liquid guiding tube is magnetically matched with the adjacent filter plate, a T-shaped tube is fixedly connected to the side of the first liquid guiding shell close to the adjacent fourth liquid storage part, the upper side of the T-shaped tube is fixedly connected and communicated with the liquid guiding tube, a mirror-distributed one-way valve is arranged in the T-shaped tube, a third sliding plate is slidably connected in the T-shaped tube, the third sliding plate is fixedly connected to the adjacent fourth sealing part, the fourth liquid storage part on the first liquid guiding shell and the fourth liquid storage part in the liquid guiding tube are connected through a connecting tube, and hydraulic oil is stored in the two fourth liquid storage parts and the adjacent connecting tubes.

[0011] Furthermore, a rotating member is also included, which is fixedly connected to the rotating ring, and the rotating member is in contact with the bottom of the flotation tank. The rotating member is composed of two fixed plates of different lengths fixed to each other and a semicircular shell, and the semicircular shell in the rotating member is provided with a plurality of liquid guide holes, and a sealing plate is fixedly connected to the side of the rotating member away from the rotating ring, and an air outlet shell is fixedly connected to the rotating member, and the air outlet shell is connected to an air inlet pipe, and the air outlet shell is provided with a plurality of air outlets, and the fixed plate located on the upper side of the rotating member is provided with a discharge port.

[0012] Furthermore, the lower side of the T-shaped tube passes through the first liquid guiding shell and the fixing plate located on the upper side of the rotating member.

[0013] Furthermore, a fixed plate located on the upper side of the rotating member is provided with a wave-shaped groove, and the wave-shaped groove is located above the air outlet shell.

[0014] Furthermore, the wavy groove is composed of arc grooves distributed in a linear array, and the diameters of the arc grooves distributed in a linear array on the wavy groove are different.

[0015] Furthermore, an arc-shaped baffle is fixedly connected inside the rotating member, the arc-shaped baffle faces the semicircular shell on the rotating member, and the discharge port is located between the gas outlet shell and the arc-shaped baffle.

[0016] The present invention has the following advantages: the present invention uses the contact between the impurities and the filter plate to monitor the impurities on the filter plate. After the filter plate is partially blocked, the filter plate moves under the action of the increased suction force of the pumping device on the filter plate, thereby triggering the replacement of the drainage position in the discharge device, thereby achieving the effect of maintaining the drainage volume of the drainage device while replacing the drainage position of the drainage device;

[0017] In the process of treating wastewater, the shielding position of the liquid guiding tube is changed by the shielding plate, so that the filter plate blocked by impurities is kept sealed in the liquid guiding tube, and the volume of the side of the liquid guiding tube close to the first liquid storage part is increased by changing the drainage position of the liquid guiding tube. Under the action of water surge in the liquid guiding tube, the blocked filter plate is cleaned by water washing and backwashing to achieve pre-cleaning of the filter plate, and under the action of the resetting of the fourth liquid storage part, the water and impurities in the liquid guiding tube enter the T-shaped tube, thereby completing the collection of impurities in the liquid guiding tube;

[0018] In the process of treating wastewater, the present invention adopts a method of concentrating the sediment at the bottom so that the sediment contacts with the bubbles again and completes the flotation step. If the sediment still cannot be floated, a pre-collection method is adopted to shovel up and block the sediment, so as to facilitate the subsequent cleaning of the sediment by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the three-dimensional structure of the present invention;

[0020] Figure 2 A bottom view of the three-dimensional structure of the present invention;

[0021] Figure 3 It is a three-dimensional structural cross-sectional view of the air flotation tank of the present invention;

[0022] Figure 4 It is a sectional top view of the three-dimensional structure of the air flotation tank of the present invention;

[0023] Figure 5 It is a sectional top view of the three-dimensional structure of the first liquid-conducting shell of the present invention;

[0024] Figure 6 It is a three-dimensional structural cross-sectional view of the other side of the first liquid-conducting housing of the present invention;

[0025] Figure 7 It is a three-dimensional structural cross-sectional view of the catheter of the present invention;

[0026] Figure 8is a three-dimensional structural cross-sectional view of the second liquid-conducting housing of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating part of the present invention;

[0028] Fig.10 It is a bottom view of the three-dimensional structure of the rotating part of the present invention.

[0029] The meanings of the reference numerals in the figure are as follows: 10: flotation tank, 11: rotating ring, 12: fixed ring, 13: feeding pipe, 14: feeding part, 15: liquid infusion part, 16: sewage pipe, 17: electric rotating frame, 18: salvaging part, 181: first liquid guide shell, 182: liquid guide tube, 183: liquid extraction tube, 184: connecting shell, 185: filter plate, 186: shielding plate, 200: first liquid storage part, 201: first sealing part, 202: second liquid storage part, 203: first Second sealing member, 204: first spring pin, 205: first sliding plate, 301: second liquid guiding shell, 302: third liquid storage member, 303: third sealing member, 304: second sliding plate, 305: second spring pin, 401: fourth liquid storage member, 402: fourth sealing member, 403: T-shaped tube, 404: third sliding plate, 501: rotating member, 502: partition plate, 503: gas outlet shell, 504: discharge port, 6: wavy groove, 7: arc-shaped baffle. DETAILED DESCRIPTION

[0030] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention; the appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In order to solve the problem that in the process of treating clothing washing wastewater by a shallow flotation machine, impurities or floating objects that cannot float on the water surface block the filter at the drainage device's drainage port, which slows down the water circulation speed and increases energy consumption, the present invention adopts the contact between impurities and the filter plate to realize the monitoring of impurities on the filter plate. After the filter plate is partially blocked, the filter plate is moved under the action of the increased suction force of the pumping device on the filter plate, thereby triggering the replacement of the drainage position in the discharge device, thereby achieving the effect of maintaining the drainage volume of the drainage device while replacing the drainage position of the drainage device.

[0032] Embodiment 1: A sewage treatment device for clothing washing wastewater, such as Figure 1-Figure 8As shown, it includes an air flotation tank 10, a rotating ring 11 is rotatably connected to a limit seal on one side of the air flotation tank 10 near its axis, a fixed ring 12 is fixedly connected to one side of the air flotation tank 10 near its axis, the diameter of the fixed ring 12 is smaller than the diameter of the rotating ring 11, the fixed ring 12 is located on the air flotation tank 10 inside the rotating ring 11, a feed pipe 13 is fixedly connected to one side of the air flotation tank 10 near its axis, the upper side of the feed pipe 13 is rotatably connected and communicated with a feed member 14 fixedly connected to the rotating ring 11, and the feed member 14 is fixedly connected to the rotating ring 11. The material delivery member 14 is a device for conveying wastewater in the existing device. The material delivery member 14 is provided with an infusion member 15. The infusion member 15 is a device for conveying dissolved gas water in the existing device. A sewage pipe 16 is fixedly connected to the bottom of the flotation tank 10. The sewage pipe 16 is connected to the rotating ring 11 and the fixed ring 12. The rotating ring 11 is fixedly connected to an electric rotating frame 17 that cooperates with the upper side of the flotation tank 10 to rotate. The electric rotating frame 17 is composed of a fan-shaped frame and two electric wheels that are connected to each other. The electric wheels on the electric rotating frame 17 rotate along the rotating ring 11. When the upper side rotates, the electric rotating frame 17 drives the rotating ring 11 to rotate counterclockwise along the flotation tank 10. The electric rotating frame 17 and the rotating ring 11 rotate together and are connected to a salvage piece 18. During the rotation of the salvage piece 18, the waste above the liquid surface in the flotation tank 10 is salvaged. The rotating ring 11 is fixedly connected to a first liquid guide shell 181, and a liquid guide tube 182 is fixedly connected to the first liquid guide shell 181. The rotating ring 11 is fixedly connected to a liquid extraction tube 183 connected to the liquid guide tube 182. The liquid guide tube 182 is close to the inner wall of the flotation tank 10. A connecting shell 184 is fixedly connected to one side of the liquid guiding tube 182, and a mirror-image distribution of filter plates 185 is provided on the side of the liquid guiding tube 182 close to the inner wall of the flotation tank 10, one of the filter plates 185 is fixedly connected to the side of the liquid guiding tube 182 facing the rotation direction of the rotating ring 11, and the other filter plate 185 is slidingly matched with a limiting seal on the side of the liquid guiding tube 182 facing away from the rotation direction of the rotating ring 11, and a shielding plate 186 is sealingly and slidingly connected in the connecting shell 184, and the shielding plate 186 is used to block the liquid guiding tube 182.

[0033] like Figure 7 and Figure 8As shown, a first liquid storage member 200 is fixedly connected to one side of the liquid guide tube 182, a spring fixedly connected to an adjacent filter plate 185 is fixedly connected to the side of the liquid guide tube 182 close to the first liquid storage member 200, and the spring is used to drive the adjacent filter plate 185 to move and reset, a first sealing member 201 is slidably connected to a limit seal in the first liquid storage member 200, a side of the first sealing member 201 away from the first liquid storage member 200 is fixedly connected to the adjacent filter plate 185, a second liquid storage member 202 is fixedly connected to a side of the first liquid guide shell 181 close to the mirror distribution filter plate 185, a second liquid storage member 202 is slidably connected to a second sealing member 203, and the second sealing member 203 is fixedly connected to the shielding plate 186, and the first A first spring pin 204 is fixedly connected to one side of the liquid guide shell 181 close to the second liquid storage component 202, and the telescopic portion of the first spring pin 204 cooperates with the second sealing component 203 to limit the position. The side of the second sealing component 203 close to the baffle plate 186 is not sealed with the second liquid storage component 202, and the second liquid storage component 202 is slidingly connected with a first sliding plate 205 in a limit sealing manner, and a tension spring is fixedly connected between the first sliding plate 205 and the second sealing component 203. A side of the first liquid storage component 200 close to the baffle plate 186 and a side of the second liquid storage component 202 close to the first sealing component 201 are fixedly connected and connected by a connecting pipe, and hydraulic oil is stored in the first liquid storage component 200, the adjacent connecting pipe and the second liquid storage component 202.

[0034] like Figure 7 and Figure 8 As shown, the second liquid guide shell 301 is slidably connected to the liquid guide tube 182 by a limited seal, and the second liquid guide shell 301 is provided with a first liquid guide hole and a second liquid guide hole in a mirror distribution. The second liquid guide hole in a mirror distribution is located between the first liquid guide holes in a mirror distribution. A third liquid storage member 302 is fixedly connected to the side of the first liquid guide shell 181 close to the second liquid guide shell 301. A third sealing member 303 is slidably connected to the third liquid storage member 302 by a limited seal. A slide groove is provided on the lower side of the liquid guide tube 182, and the upper side of the third sealing member 303 slides in the slide groove on the lower side of the liquid guide tube 182. The upper side of the third sealing member 303 is fixedly connected to the second liquid guiding shell 301, and the third liquid storage member 302 is slidingly connected with the second sliding plate 304 in a limiting sealing manner. A spring is fixedly connected between the second sliding plate 304 and the third sealing member 303. The third liquid storage member 302 is fixedly connected to the adjacent side of the first liquid storage member 200 and is connected with a connecting pipe. Hydraulic oil is stored in the third liquid storage member 302 and the adjacent connecting pipe. The first liquid guiding shell 181 is fixedly connected with a second spring pin 305 which is limitedly matched with the third sealing member 303. The second spring pin 305 is used to limit the position of the third sealing member 303.

[0035] like Figure 7 and Figure 8As shown, the upper side of the first liquid-conducting shell 181 and the side of the liquid-conducting tube 182 close to the first liquid-storing part 200 are both fixedly connected with the fourth liquid-conducting part 401, and the fourth sealing part 402 is slidably connected with the limiting seal in the fourth liquid-conducting part 401, and a spring is fixedly connected between the fourth liquid-conducting part 401 and the adjacent fourth sealing part 402, the filter plate 185 is made of metal, and the fourth sealing part 402 located on the upper side is made of magnetic material. The fourth sealing part 402 located in the liquid-conducting tube 182 is magnetically matched with the adjacent filter plate 185, and the fourth sealing part 402 is driven to move synchronously when the filter plate 185 is reset through the magnetic adsorption of the fourth sealing part 402 and the adjacent filter plate 185, and a T-shaped tube 403 is fixedly connected to the side of the first liquid-conducting shell 181 close to the adjacent fourth liquid-conducting part 401, Two one-way valves are arranged in upper and lower mirror images in the T-tube 403. When the water in the T-tube 403 flows to the outside, the one-way valve located at the lower side of the T-tube 403 is in an open state. When the water in the liquid guiding tube 182 flows to the T-tube 403, the one-way valve located at the upper side of the T-tube 403 is in an open state. A third sliding plate 404 is sealingly and slidingly connected in the T-tube 403. The third sliding plate 404 is fixedly connected to the adjacent fourth sealing member 402. The fourth liquid storage member 401 on the first liquid guiding shell 181 and the fourth liquid storage member 401 in the liquid guiding tube 182 are connected through a connecting tube. Hydraulic oil is stored in the two fourth liquid storage members 401 and the adjacent connecting tubes. The water in the T-tube 403 is replaced by sliding the third sliding plate 404 in the T-tube 403.

[0036] Before treating the clothing washing wastewater (the clothing washing wastewater will be completely replaced by wastewater later), the user connects the liquid extraction port of the external liquid extraction device to the upper side of the liquid extraction tube 183, and then connects the liquid inlet of the external waste liquid supply device and the liquid inlet of the external dissolved gas water supply device (the dissolved gas water supply device is a device used to produce and supply dissolved gas water in the water treatment process. Its working principle is to dissolve air in water by pressurizing and releasing it by decompressing, so that the water contains gas to form dissolved gas water) to the feed pipe 13 and the infusion component 15 respectively, and finally connects the external drive device to the side of the salvage component 18 away from the flotation tank 10, thereby completing the preparation work before wastewater treatment.

[0037] After the preparation work before wastewater is completed, the user first injects wastewater into the flotation tank 10 and the rotating ring 11. After the liquid level of the wastewater in the flotation tank 10 reaches the liquid level required for work, the user no longer injects wastewater into the flotation tank 10, and then the user starts the electric rotating frame 17, so that the electric rotating frame 17 drives the rotating ring 11 and its attached parts to rotate along the flotation tank 10. During the rotation of the electric rotating frame 17, the external waste liquid supply equipment transports the wastewater from the feed pipe 13 to the feed piece 14, and the feed piece 14 discharges the wastewater into the flotation tank 10. The external dissolved air water supply equipment transports the dissolved air water from the feed piece 15 to the flotation tank 10. After the dissolved air water contacts the wastewater, the bubbles in the dissolved air water contact the flocculants in the wastewater, thereby driving the flocculants in the wastewater to float to the water surface, thereby completing the "floatation" of the flocculants in the wastewater.

[0038] In the process of flotation of the flocculation degree in the wastewater, the external pumping equipment extracts the water in the flotation tank 10 through the pumping pipe 183. The pumping process is as follows: the water in the flotation tank 10 enters the liquid guide pipe 182 from the first liquid guide shell 181, and passes through the filter plate 185 close to the first sealing member 201. The filter plate 185 filters and purifies the water passing through. The filtered water then enters the second liquid guide shell 301 through the adjacent first liquid guide hole, until it flows into the pumping pipe 183 through the corresponding second liquid guide hole on the second liquid guide shell 301, thereby completing the discharge of the water in the flotation tank 10, and cooperating with the above-mentioned parts to transport wastewater and dissolved air water, so as to realize the circulation of water in the flotation tank 10.

[0039] During the treatment of the wastewater in the flotation tank 10, the external driving device drives the salvaging member 18 to rotate. During the rotation of the salvaging member 18, the floating objects above the liquid surface (that is, the flocculants in contact with the bubbles) are salvaged into the salvaging member 18, and are transferred to the side close to the rotating ring 11 by the salvaged waste, so that the salvaged waste enters between the rotating ring 11 and the fixed ring 12, and is discharged from the sewage pipe 16. Through the movement of the above parts, the wastewater treatment is completed.

[0040] When the filter plate 185 fixedly connected to the first sealing member 201 is clogged by impurities and the water pumping amount of the liquid pumping tube 183 is reduced, the filter plate 185 moves toward the second liquid guiding shell 301 under the action of water pumping by the liquid pumping tube 183 (the adjacent spring is squeezed during the movement of the filter plate 185), and the hydraulic oil in the adjacent first liquid storage member 200 is squeezed during the movement of the filter plate 185 and the first sealing member 201, so that the hydraulic oil in the first liquid storage member 200 enters the third liquid storage member 302 through the adjacent connecting pipe and squeezes the second sliding plate 304, and the adjacent spring is squeezed during the movement of the second sliding plate 304 (in this process, the second spring pin 305 limits the third sealing member 303, and the squeezing force applied by the adjacent spring of the second sliding plate 304 to the third sealing member 303 is less than the squeezing force applied by the second spring pin 305 to the third sealing member 303).

[0041] In the process of moving the first sealing member 201 driven by the filter plate 185, the pressure on the side of the first liquid storage member 200 away from the second liquid guiding shell 301 is reduced, so that the hydraulic oil in the second liquid storage member 202 enters the side of the first liquid storage member 200 away from the second liquid guiding shell 301 through the adjacent connecting pipe. In the process of reducing the pressure in the second liquid storage member 202, the first sliding plate 205 is moved, and the adjacent tension spring is stretched during the movement of the first sliding plate 205 (in this process, the first spring pin 204 limits the second sealing member 203, and the tension provided by the adjacent tension spring of the first sliding plate 205 is less than the extrusion force provided by the first spring pin 204 on the second sealing member 203).

[0042] When the filter plate 185 drives the first sealing member 201 to move until the filter plate 185 contacts the end of the adjacent fourth sealing member 402 away from the fourth liquid storage member 401 , the end of the fourth sealing member 402 is adsorbed on the adjacent filter plate 185 .

[0043] After the filter plate 185 contacts the end adjacent to the fourth sealing member 402, the pressure in the second liquid storage member 202 is sufficient to cause the first sliding plate 205 to drive the second sealing member 203 to move toward the first liquid storage member 200 through the adjacent tension spring, and at this time, the second sealing member 203 has squeezed the telescopic portion of the first spring pin 204 downward, and the second sealing member 203 moves while driving the shielding plate 186 to move synchronously along the connecting shell 184, so that the shielding plate 186 no longer blocks the side of the liquid conduit 182 away from the first liquid storage member 200, and blocks the side of the liquid conduit 182 close to the first liquid storage member 200 during the movement of the shielding plate 186, so that the water in the flotation tank 10 no longer enters the side of the liquid conduit 182 close to the first liquid storage member 200, and through the movement of the above parts, the shielding plate 186 changes the shielding position of the liquid conduit 182.

[0044] After the filter plate 185 fixedly connected to the first sealing member 201 contacts the end adjacent to the fourth sealing member 402, the pressure in the first liquid storage member 200, the adjacent connecting pipe and the third liquid storage member 302 is sufficient to cause the second sliding plate 304 to drive the third sealing member 303 to move in the direction of the second spring pin 305 through the adjacent spring, so that the third sealing member 303 presses the telescopic part of the second spring pin 305 downward (the second spring pin 305 then releases the limit on the third sealing member 303), and then the third sealing member 303 drives the adjacent second liquid guide housing 30 1 slides toward the side away from the first liquid storage member 200, thereby changing the communication position of the second liquid guiding shell 301, so that another first liquid guiding hole on the second liquid guiding shell 301 is connected with the side of the liquid guiding tube 182 away from the first liquid storage member 200, and another second liquid guiding hole is connected with the side of the liquid guiding tube 182 away from the shielding plate 186. By moving the above parts, the second liquid guiding shell 301 slides in the first liquid storage member 200 and changes the drainage position therein, so as to achieve the effect of changing the drainage position of the liquid guiding tube 182 after one of the filter plates 185 is blocked.

[0045] After the second liquid guiding shell 301 slides, the side of the liquid guiding tube 182 close to the first liquid storage part 200 will no longer continue to drain water, and the side of the liquid guiding tube 182 close to the first liquid storage part 200 will be a sealed environment. After the second liquid guiding shell 301 moves, the volume of the side of the liquid guiding tube 182 close to the first liquid storage part 200 becomes larger. Due to the lack of space occupied by the second liquid guiding shell 301, the water on the side of the liquid guiding tube 182 close to the first liquid storage part 200 surges toward the second liquid guiding shell 301. The water on the side of the liquid guiding tube 182 close to the first liquid storage part 200 surges to the inner wall of the liquid guiding tube 182 close to the second liquid guiding shell 301 and is blocked, and then flows in the opposite direction to the side of the liquid guiding tube 182 close to the first liquid storage part 200. Through the reverse flow of water in the liquid guiding tube 182, the blocked filter plate 185 is cleaned by water backwashing to achieve pre-cleaning of the filter plate 185.

[0046] After the side of the liquid guide tube 182 close to the first liquid storage component 200 is sealed, the filter plate 185 and the first sealing component 201 no longer move in the direction of the second liquid guide shell 301. Under the action of the adjacent spring of the first sealing component 201, the filter plate 185 drives the first sealing component 201 to move away from the second liquid guide shell 301. The filter plate 185 then drives the adjacent fourth sealing component 402 to move synchronously. During the movement of the fourth sealing component 402 located on the upper side, the hydraulic oil in the adjacent fourth liquid storage component 401 is squeezed into the fourth liquid storage component 401 located on the lower side through the adjacent connecting pipe, so that the two fourth liquid storage components 401 move at the same time (the adjacent springs are squeezed during the movement of the fourth liquid storage component 401). The fourth liquid storage component 401 located on the lower side drives the third sliding plate 404 to move into the T-tube 403, squeezing the liquid in the T-tube 403, so that the liquid in the T-tube 403 pushes open the one-way valve located on the lower side and flows out from the lower side of the T-tube 403.

[0047] When the filter plate 185 fixedly connected to the first sealing member 201 drives the adjacent fourth liquid storage member 401 to slide to the limit position, the filter plate 185 is no longer magnetically adsorbed to the adjacent end of the fourth liquid storage member 401. At this time, the two fourth liquid storage members 401 are reset and moved at the same time under the action of the adjacent springs, and the hydraulic oil in the fourth sealing member 402 located at the lower side re-enters the fourth sealing member 402 located at the upper side through the adjacent connecting pipe. During the reset movement of the fourth liquid storage member 401 located at the lower side, the third sliding plate 404 is driven to move at the same time, so that the one-way valve located at the upper side of the T-shaped tube 403 is opened, so that the water and impurities in the liquid guide tube 182 enter the T-shaped tube 403, so as to complete the collection of impurities in the liquid guide tube 182. Under the action of the suction force provided by the third sliding plate 404, the water in the liquid guide tube 182 actively flows into the T-shaped tube 403, and the water actively flowing into the T-shaped tube 403 recoils the adjacent filter plate 185, so as to achieve the cleaning of the filter plate 185.

[0048] The two fourth liquid storage parts 401 move to Figure 8 After reaching the state in the middle, the one-way valve located on the upper side of the T-tube 403 remains closed. During the movement and reset process of the first sealing component 201, the hydraulic oil in the first liquid storage component 200 enters the second liquid storage component 202 through the adjacent connecting pipe until the first sliding plate 205, the second sealing component 203 and their accessory parts are squeezed to reset and move. During the movement and reset process, the first sealing component 201 draws the hydraulic oil in the third liquid storage component 302 through the adjacent connecting pipe, so that the second sliding plate 304, the third sealing component 303 and their accessory parts are reset and moved.

[0049] When the filter plate 185 fixedly connected to the first sealing member 201 moves to Figure 7After the shielding plate 186 and the second sealing member 203 move to block the side of the liquid guide tube 182 away from the first liquid storage member 200, the second sealing member 203 moves to the telescopic portion of the first spring pin 204 can be inserted therein, and the third sealing member 303 drives the second liquid guide shell 301 to move to Figure 7 After the state is reached, the telescopic end of the second sliding plate 304 can be inserted into the third sealing member 303.

[0050] When the filter plate 185 on the side close to the first liquid storage member 200 in the subsequent liquid conduit 182 needs to be cleaned again, the above-mentioned action can be repeated. When the wastewater no longer needs to be treated, the user turns off all the above-mentioned electrical equipment, and then the user cleans the device.

[0051] During the use of the existing shallow flotation machine, some impurities or granular substances cannot contact the bubbles in the dissolved air water in the first time, which will cause the impurities or granular substances to settle at the bottom of the shallow flotation machine, and these impurities or granular substances can only be cleaned after the shallow flotation machine stops working. This will not only increase the cleaning time of the users, but also reduce the flocculant treatment efficiency.

[0052] In order to solve the above-mentioned problems, the present invention adopts a method of concentrating the sediment at the bottom so that the sediment contacts with the bubbles again and completes the flotation step. If the sediment still cannot be floated, a pre-collection method is adopted to shovel up and block the sediment, so as to facilitate the subsequent cleaning of the sediment by users.

[0053] Embodiment 2: Based on embodiment 1, Figure 3-Figure 6 , Fig. 9 and Fig.10As shown, it also includes a rotating member 501, which is fixedly connected to the rotating ring 11. The rotating member 501 contacts and cooperates with the bottom of the flotation tank 10. The lower side of the T-tube 403 passes through the first liquid guide shell 181 and the fixed plate located on the upper side of the rotating member 501. The rotating member 501 is composed of two fixed plates of different lengths fixed to each other and a semicircular shell. The length of the fixed plate located on the upper side of the rotating member 501 is longer than the length of the fixed plate located on the lower side. The semicircular shell in the rotating member 501 is provided with a plurality of liquid guide holes. When the rotating member 501 rotates in the flotation tank 10 along with the rotating ring 11, the water in the flotation tank 10 flows through all the liquid guide holes on the semicircular shell in the rotating member 501, thereby reducing the resistance of the rotating member 501 during rotation. A sealing plate 502 is fixedly connected to the side of the rotating member 501 away from the rotating ring 11. An air outlet shell 503 is fixedly connected to the rotating member 501. The air outlet shell 503 is located at the lower part of the rotating member 501. On the fixed plate on the side, the air outlet shell 503 is connected to the air inlet pipe, and the air outlet shell 503 is provided with a plurality of air outlets. The fixed plate located on the upper side of the rotating member 501 is provided with a discharge port 504. The bubbles discharged through all the air outlets on the air outlet shell 503 make the sediment in the rotating member 501 contact with the bubbles, thereby increasing the buoyancy of the sediment, so that the sediment floats upward from the discharge port 504, thereby completing the recovery and utilization of the sediment. The fixed plate located on the upper side of the rotating member 501 is provided with a wavy groove 6. The wavy groove 6 is located above the air outlet shell 503. The wavy groove 6 is composed of arc grooves distributed in a linear array, and the diameter of the arc grooves distributed in a linear array on the wavy groove 6 gradually decreases from close to the discharge port 504 to far away from the discharge port 504. An arc baffle 7 is fixedly connected to the rotating member 501, and the arc baffle 7 faces the semicircular shell on the rotating member 501. The discharge port 504 is located between the air outlet shell 503 and the arc baffle 7.

[0054] In the process of treating wastewater, the rotating ring 11 and the electric rotating frame 17 drive the rotating member 501 and its accessory parts to rotate synchronously. The rotating member 501 scoops up the sediment at the bottom of the flotation tank 10 as the rotating ring 11 rotates, and transfers the sediment at the bottom of the flotation tank 10 to the rotating member 501. In this process, the water at the bottom of the flotation tank 10 flows through all the liquid guide holes on the rotating member 501, thereby reducing the resistance of the rotating member 501 when rotating.

[0055] In the process of treating wastewater, the T-tube 403 discharges the sediment therein directly into the rotating part 501, and the air inlet pipe connected to the air outlet shell 503 transports the gas to the air outlet shell 503, and sprays it out from all the air outlets on the air outlet shell 503, so that the gas is converted into bubbles and exists in the rotating part 501. When the sediment scooped up by the rotating part 501 contacts the bubbles, the sediment and the bubbles fit together, and the bubbles drive the sediment to float upward to contact the side of the wavy groove 6 away from the arc baffle 7. The sediment in contact with the bubbles is sufficient to break through the restriction of one of the arc grooves in the arc baffle 7 and enter the next arc groove, and so on, so as to realize the flotation of the sediment. Under the action of the different diameters of the arc grooves in the arc baffle 7, the bubbles gradually adhere to the sediment to achieve a step-by-step adhesion effect.

[0056] When the sediment in contact with the bubbles moves to the discharge port 504, it flows out from the discharge port 504 and moves toward the liquid surface of the wastewater in the flotation tank 10, thereby achieving re-floatation of the sediment. The sediment that fails to float immediately enters the arc baffle 7 to achieve pre-collection of the sediment.

[0057] After the wastewater treatment is completed, the user can simply clean the device.

[0058] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage treatment device for clothing washing wastewater, comprising an air flotation tank (10), characterized in that: The invention also comprises a rotating ring (11), the rotating ring (11) being rotatably connected to the flotation pool (10), the flotation pool (10) being fixedly connected to a fixed ring (12) located in the rotating ring (11), the flotation pool (10) being fixedly connected to a feed pipe (13), the feed pipe (13) being rotatably connected to and communicating with a material delivery member (14) fixedly connected to the rotating ring (11), the material delivery member (14) being provided with a liquid delivery member (15), the flotation pool (10) being fixedly connected to a sewage discharge pipe (16), the sewage discharge pipe (16) being communicated between the rotating ring (11) and the fixed ring (12), the sewage discharge pipe (16) being located between the rotating ring (11) and the fixed ring (12), the rotating ring (11) being fixedly connected to a material delivery member (14) rotatably matched with the flotation pool (10), the material delivery member (14) being provided with a liquid delivery member (15), An electric rotating frame (17), wherein the electric rotating frame (17) and the rotating ring (11) are connected to a salvaging piece (18) for rotating together, the rotating ring (11) is fixedly connected to a first liquid guiding shell (181), a liquid guiding tube (182) is fixedly connected inside the first liquid guiding shell (181), the rotating ring (11) is fixedly connected to a liquid extraction tube (183) connected to the liquid guiding tube (182), a side of the liquid guiding tube (182) away from the liquid extraction tube (183) is fixedly connected to and connected to a connecting shell (184), a side of the liquid guiding tube (182) away from the liquid extraction tube (183) is provided with a filter plate (185) with mirror distribution, and a shielding plate (186) is slidably connected inside the connecting shell (184), and the shielding plate (186) is used to block the liquid guiding tube (182); A first liquid storage member (200) is fixedly connected to one side of the liquid guide tube (182); a spring fixedly connected to the adjacent filter plate (185) is fixedly connected to the side of the liquid guide tube (182) close to the first liquid storage member (200); a first sealing member (201) is slidably connected to the first liquid storage member (200); the first sealing member (201) is fixedly connected to the adjacent filter plate (185); a second liquid storage member (202) is fixedly connected to the side of the first liquid guide housing (181) close to the mirror-distributed filter plate (185); the second liquid storage member (202) is slidably connected to a second sealing member (203); the second sealing member (203) The first liquid guide shell (181) is fixedly connected to a first spring pin (204) which is limitedly matched with the second sealing member (203); a first sliding plate (205) is slidably connected in the second liquid storage member (202); a tension spring is fixedly connected between the first sliding plate (205) and the second sealing member (203); a side of the first liquid storage member (200) adjacent to the filter plate (185) is fixedly connected to the second liquid storage member (202) and is connected to a connecting pipe; hydraulic oil is stored in the first liquid storage member (200), the adjacent connecting pipe and the second liquid storage member (202); A second liquid guiding shell (301) is slidably connected inside the liquid guiding tube (182), the second liquid guiding shell (301) is provided with first liquid guiding holes and second liquid guiding holes in a mirror-image distribution, the second liquid guiding holes in a mirror-image distribution are located between the first liquid guiding holes in a mirror-image distribution, and all the first liquid guiding holes and second liquid guiding holes on the second liquid guiding shell (301) are used to connect the liquid guiding tube (182) with the liquid extraction tube (183); A third liquid storage component (302) is fixedly connected to one side of the first liquid guiding shell (181) close to the second liquid guiding shell (301); a third sealing component (303) is slidably connected inside the third liquid guiding shell (302); the third sealing component (303) is fixedly connected to the second liquid guiding shell (301); a second sliding plate (304) is slidably connected inside the third liquid guiding shell (302); a spring is fixedly connected between the second sliding plate (304) and the third sealing component (303); the third liquid storage component (302) is fixedly connected to an adjacent side of the first liquid storage component (200) and is connected by a connecting pipe; hydraulic oil is stored in the third liquid storage component (302) and the adjacent connecting pipe; and a second spring pin (305) that is limitedly matched with the third sealing component (303) is fixedly connected to the first liquid guiding shell (181).

2. A sewage treatment device for clothing washing wastewater according to claim 1, characterized in that: A fourth liquid storage component (401) is fixedly connected to the first liquid guide housing (181) and the side of the liquid guide tube (182) close to the first liquid storage component (200); a fourth sealing component (402) is slidably connected to the fourth liquid storage component (401); a spring is fixedly connected between the fourth liquid storage component (401) and the adjacent fourth sealing component (402); the fourth sealing component (402) located in the liquid guide tube (182) is magnetically matched with the adjacent filter plate (185); a T-shaped tube (402) is fixedly connected to the side of the first liquid guide housing (181) close to the adjacent fourth liquid storage component (401); 403), the upper side of the T-shaped tube (403) is fixedly connected to and communicated with the liquid guiding tube (182), a one-way valve with mirror distribution is arranged in the T-shaped tube (403), a third sliding plate (404) is slidably connected in the T-shaped tube (403), the third sliding plate (404) is fixedly connected to the adjacent fourth sealing member (402), the fourth liquid storage member (401) on the first liquid guiding shell (181) and the fourth liquid storage member (401) in the liquid guiding tube (182) are connected via a connecting tube, and hydraulic oil is stored in both the two fourth liquid storage members (401) and the adjacent connecting tubes.

3. A sewage treatment device for clothing washing wastewater according to claim 2, characterized in that: The invention also comprises a rotating member (501), wherein the rotating member (501) is fixedly connected to the rotating ring (11), and the rotating member (501) is in contact with the bottom of the flotation tank (10). The rotating member (501) is composed of two fixed plates of different lengths fixedly connected to each other and a semicircular shell. The semicircular shell in the rotating member (501) is provided with a plurality of liquid guide holes. A sealing plate (502) is fixedly connected to a side of the rotating member (501) away from the rotating ring (11). An air outlet shell (503) is fixedly connected to the rotating member (501), and the air outlet shell (503) is connected to an air inlet pipe. The air outlet shell (503) is provided with a plurality of air outlets. The fixed plate located on the upper side of the rotating member (501) is provided with a discharge port (504).

4. A sewage treatment device for clothing washing wastewater according to claim 3, characterized in that: The lower side of the T-shaped tube (403) passes through the first liquid-conducting housing (181) and a fixed plate located on the upper side of the rotating member (501).

5. A sewage treatment device for clothing washing wastewater according to claim 4, characterized in that: The fixed plate located on the upper side of the rotating member (501) is provided with a wave-shaped groove (6), and the wave-shaped groove (6) is located above the gas outlet shell (503).

6. A sewage treatment device for clothing washing wastewater according to claim 5, characterized in that: The wavy groove (6) is composed of arc grooves distributed in a linear array, and the diameters of the arc grooves distributed in a linear array on the wavy groove (6) are different.

7. A sewage treatment device for clothing washing wastewater according to claim 5, characterized in that: An arc-shaped baffle (7) is fixedly connected inside the rotating member (501), the arc-shaped baffle (7) faces the semicircular shell on the rotating member (501), and the discharge port (504) is located between the gas outlet shell (503) and the arc-shaped baffle (7).

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