Wastewater treatment device for down feather processing

Abstract

The invention relates to the field of wastewater treatment, in particular to a down feather processing wastewater treatment device which comprises a primary filtering unit, a gas-water mixing unit arranged on the primary filtering unit, a solid-liquid separation unit arranged on the gas-water mixing unit and a filtering and recycling unit arranged on the solid-liquid separation unit. The gas-water mixing unit comprises a mixing tank arranged on the primary filtering unit, a gas-dissolved water conveying assembly arranged on the mixing tank and a micronization mixing assembly arranged on the mixing tank, and a large number of tiny bubbles are generated through the gas-dissolved water conveying assembly and the micronization mixing assembly and are mixed with wastewater entering the mixing tank, so that the wastewater enters the primary filtering unit; bubbles are added into the wastewater, so that pollutants such as emulsified oil and tiny suspended particles in the wastewater are adhered to the bubbles and float to the water surface along with the bubbles, and floating foams or scum are cleaned and collected into a waste collecting tank through cooperation of a second separating tank and a scraping piece, so that the content of particulate matters in the wastewater is greatly reduced, and the filtering effect is improved.

Description

Technical Field

[0001] The invention relates to the field of wastewater treatment, in particular to a wastewater treatment device for down processing. Background Art

[0002] Down wastewater is the wastewater generated during the cleaning and processing of down. The impurities in it mainly include grease, organic matter, and finely divided down. If the wastewater is discharged directly without treatment, it will cause great pollution.

[0003] At present, the commonly used down wastewater treatment equipment is to use flotation method in combination with membrane separation technology (MBR) to perform multiple treatments on wastewater. Flotation method generates a large number of bubbles in the wastewater to drive the oil and suspended matter in the wastewater to float up, and separates impurities and purifies the wastewater by collecting foam or scum. Then, the wastewater is further filtered with membrane separation technology to improve the stability of the effluent water quality. The oil and suspended matter are thoroughly removed, which is not easy to cause clogging of the filter membrane. However, in order to ensure the smooth flow of the gas diffusion device, the existing treatment equipment will not open the micropores with a diameter that is too small, resulting in the generated bubbles not being fine enough, the generated bubbles are large in diameter, and the floating speed is fast, which cannot achieve efficient removal effect and has the risk of clogging the filter membrane. Summary of the invention

[0004] In view of the fact that the existing processing equipment in the above-mentioned or prior art has the problem that in order to ensure the smooth flow of the gas diffusion device, the diameter of the micropores will not be too small, resulting in the generated bubbles being not fine enough, the generated bubbles being large in diameter, and the floating speed being fast, and the efficient removal effect cannot be achieved, and there is a risk of clogging the filter membrane, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a down processing wastewater treatment device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: including a primary filtration unit, an air-water mixing unit arranged on the primary filtration unit, a solid-liquid separation unit arranged on the air-water mixing unit, and a filtration and recycling unit arranged on the solid-liquid separation unit; the air-water mixing unit includes a mixing tank arranged on the primary filtration unit, a dissolved air and water conveying component arranged on the mixing tank, and a fine mixing component arranged on the mixing tank.

[0007] As a preferred solution of the down processing wastewater treatment device of the present invention, wherein: the primary filtration unit includes a first separation tank arranged on the mixing tank, a separation piece arranged on the first separation tank, a first connecting pipe arranged on the first separation tank, and a first self-priming pump arranged on the first connecting pipe; the separation piece includes a first connecting rod and a second connecting rod arranged on the first separation tank, and a filter screen arranged between the first connecting rod and the second connecting rod; one end of the first connecting pipe is connected to the bottom of the mixing tank through an electronic valve.

[0008] As a preferred solution of the down processing wastewater treatment device of the present invention, the dissolved air water conveying component includes a second connecting pipe arranged on the mixing tank, a second self-priming pump arranged on the second connecting pipe, and a compressed gas storage tank arranged on the second connecting pipe.

[0009] As a preferred solution of the wastewater treatment device for down processing of the present invention, the micronizing and mixing component includes a first support frame arranged on the second connecting pipe, a first dissolved air water output member and a second dissolved air water output member rotatably arranged on the first support frame, and a power component arranged on the first support frame; a support plate cooperating with the power component is arranged on the first support frame; the first dissolved air water output member includes a rotating sleeve rotatably arranged on the second connecting pipe, an output end arranged on the rotating sleeve, a micropore arranged on the output end, and a spiral blade arranged on the output end; the second dissolved air water output member and the first dissolved air water output member have the same structure, size and rotation direction.

[0010] As a preferred solution of the down processing wastewater treatment device of the present invention, the power assembly includes a first motor arranged on the support plate, an input gear arranged on the first motor, a first rotating shaft rotatably arranged on the support plate, an output gear arranged on the first rotating shaft and meshing with the input gear, a transmission belt arranged on the first rotating shaft, a second rotating shaft arranged on the support plate, and a third rotating shaft arranged on the support plate.

[0011] As a preferred solution of the down processing wastewater treatment device of the present invention, the rotating sleeve, the second dissolved air water output member, the first rotating shaft, the second rotating shaft, and the third rotating shaft are all provided with transmission teeth, and both sides of the transmission belt are provided with tooth grooves matching the transmission teeth; The rotating shaft sleeve and the second dissolved air and water output member are respectively connected to two sides of the transmission belt.

[0012] As a preferred solution of the down processing wastewater treatment device of the present invention, the solid-liquid separation unit includes a second separation tank arranged on the mixing tank, a scraper arranged on the second separation tank, a waste collection tank arranged on the second separation tank, a third connecting pipe arranged on the second separation tank, and a third self-priming pump arranged on the third connecting pipe; a first discharge port is arranged at the bottom of the second separation tank, and a second discharge port is arranged at the bottom of the waste collection tank.

[0013] As a preferred solution of the wastewater treatment device for down processing of the present invention, the scraper includes a second support frame arranged on the second separation tank, a transmission roller arranged on the second support frame, a second motor arranged on the transmission roller, a conveyor belt arranged on the transmission roller, and a scraper arranged on the conveyor belt; a guide plate cooperating with the scraper is arranged on the second separation tank.

[0014] As a preferred solution of the down processing wastewater treatment device of the present invention, the filtration and reuse unit includes a water filter tank arranged on the waste collection tank, a filter membrane arranged on the water filter tank, and a drain pipe arranged at the bottom of the water filter tank; one end of the second connecting pipe is connected to the drain pipe through an electronic valve.

[0015] As a preferred solution of the wastewater treatment device for down processing of the present invention, the filter membranes are provided in multiple groups, the filter membranes are tilted in the filter tank, the tilt directions of adjacent filter membranes are opposite, and the filter pores of the filter membranes gradually decrease from top to bottom.

[0016] The beneficial effects of the down processing wastewater treatment device of the present invention are as follows: the present invention first collects large floating particles and impurities in the down wastewater through a filter screen, then pumps the wastewater after the initial filtration from the mixing tank into the mixing tank, cooperates with the dissolved air water delivery component and the micro-mixing component to generate a large number of tiny bubbles, which are mixed with the wastewater entering the mixing tank, so that the emulsified oil, tiny suspended particles and other pollutants in the wastewater adhere to the bubbles and float to the water surface with the bubbles to form a three-phase mixture of foam, gas, water and particles (oil), and then through the cooperation of the second separation tank and the scraper, the floating foam or scum is cleaned and collected into the waste collection tank, which greatly reduces the particulate content in the wastewater, improves the filtering effect, reduces the probability of filter membrane clogging, improves the efficiency of the filter membrane in filtering water, improves the service life of the device, and reduces the frequency of device inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment device for down processing.

[0019] Figure 2 This is a schematic diagram of the structure of a wastewater treatment device for down processing from an overhead perspective.

[0020] Figure 3 This is a schematic diagram of the structure of the first separation tank of the wastewater treatment device for down processing.

[0021] Figure 4 Wastewater treatment plant for down processing Figure 1 A magnified view of the structure in the middle.

[0022] Figure 5 This is a side view schematic diagram of the wastewater treatment device for down processing.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of a mixing tank in a wastewater treatment plant for down processing.

[0024] Figure 7 This is a schematic structural diagram of the first dissolved air water output component of the down processing wastewater treatment device.

[0025] Figure 8 Wastewater treatment plant for down processing Figure 7 Enlarged view of the structure at point B in the middle.

[0026] Fig. 9 This is a schematic diagram of the top view of the support plate of the wastewater treatment device for down processing.

[0027] Fig.10 This is a schematic diagram of the cross-sectional structure of the filter tank of a wastewater treatment device for down processing.

[0028] In the figure: 1, primary filtration unit; 11, first separation tank; 12, separation element; 121, first connecting rod; 122, second connecting rod; 123, filter screen; 13, first connecting pipe; 14, first self-priming pump; 2, air-water mixing unit; 21, mixing tank; 22, dissolved air and water conveying assembly; 221, second connecting pipe; 222, second self-priming pump; 223, compressed gas storage tank; 23, micro-mixing assembly; 231, first support frame; 2311, support plate; 232, first dissolved air and water output element; 2321, rotating shaft sleeve; 2322, output end; 2323, micropore; 2324, spiral blade; 233, second dissolved air and water output element; 234, dynamic force assembly; 2341, first motor; 2342, input gear; 2343, first rotating shaft; 2344, output gear; 2345, transmission belt; 2346, second rotating shaft; 2347, third rotating shaft; 3, solid-liquid separation unit; 31, second separation tank; 312, guide plate; 311, first discharge port; 32, scraper; 321, second support frame; 322, transmission roller; 323, second motor; 324, conveyor belt; 325, scraper; 33, waste collection tank; 331, second discharge port; 34, third connecting pipe; 35, third self-priming pump; 4, filtration and reuse unit; 41, water filter tank; 42, filter membrane; 43, drain pipe. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, and provides a down processing wastewater treatment device, which includes a primary filtering unit 1, used to filter large particle impurities and floating objects in the wastewater, an air-water mixing unit 2 arranged on the primary filtering unit 1, used to mix the initially filtered wastewater with dissolved air water, so as to facilitate the subsequent removal of fine particles in the wastewater, a solid-liquid separation unit 3 arranged on the air-water mixing unit 2, used to remove the precipitated impurities and floating objects in the wastewater, and a filtering and recycling unit 4 arranged on the solid-liquid separation unit 3, used to further filter the wastewater treated by the solid-liquid separation unit 3, reduce the chromaticity of the sewage, improve the quality of the effluent, and send a part of the effluent to the air-water mixing unit 2 for circulating filtration; The air-water mixing unit 2 includes a mixing tank 21 arranged on the primary filtering unit 1, which is used to hold the wastewater and dissolved air water that have been initially filtered by the primary filtering unit 1, a dissolved air water conveying component 22 arranged on the mixing tank 21, which is used to produce dissolved air water and convey the dissolved air water into the mixing tank 21, and a micronizing mixing component 23 arranged on the mixing tank 21, which is used to fully mix the wastewater and dissolved air water that have been initially filtered by the primary filtering unit 1, so that the air bubbles are in full contact with the particulate matter in the wastewater.

[0031] The primary filtering unit 1 comprises a first separation tank 11 disposed on the mixing tank 21, used to hold wastewater generated by down processing, a separator 12 disposed on the first separation tank 11, used to filter and intercept large particles of impurities and floating objects in the wastewater, a first connecting pipe 13 disposed on the first separation tank 11, used as a flow channel for the wastewater after the initial filtration by the separator 12, and a first self-priming pump 14 disposed on the first connecting pipe 13, used to extract the wastewater in the first separation tank 11; The separation element 12 includes a first connecting rod 121 and a second connecting rod 122 disposed on the first separation tank 11, and a filter screen 123 disposed between the first connecting rod 121 and the second connecting rod 122. The first connecting rod 121 and the second connecting rod 122 are used to support the filter screen 123, and the filter screen 123 is used to intercept and filter large particles of impurities and floating objects in the wastewater. One end of the first connecting pipe 13 is connected to the bottom of the mixing tank 21 through an electronic valve, and is used to cooperate with the first connecting pipe 13 to transport the wastewater filtered by the filter screen 123 from the mixing tank 21. This can prevent the wastewater from splashing and allow the particles in the wastewater to fully contact with the dissolved air water.

[0032] In summary, first, the wastewater generated by down processing is discharged into the first separation tank 11. At this time, agents such as (PAM, CLO) are added to the first separation tank 11 for sterilization and disinfection. At this time, large particles of floating objects and impurities in the wastewater are intercepted by the filter 123. At this time, the first self-priming pump 14 conveys the reacted wastewater into the mixing tank 21 through the first connecting pipe 13. At this time, the dissolved air water conveying component 22 is started, and the dissolved air water is conveyed into the mixing tank 21 through the micronizing mixing component 23. At this time, the micronizing mixing component 23 is started to fully mix the wastewater and the dissolved air water, and make the bubbles generated by the dissolved air water smaller, so as to better The gas-water mixture in the mixing tank 21 gradually increases and begins to overflow into the solid-liquid separation unit 3. At this time, the fine particles and floating objects in the gas-water mixture entering the solid-liquid separation unit 3 are driven to float up by the bubbles, and the remaining impurities sink. At this time, the solid-liquid separation unit 3 is started to scrape off the floating objects on the wastewater. At this time, the supernatant in the solid-liquid separation unit 3 is transported into the filtration and reuse unit 4 in cooperation with the filtration and reuse unit 4 for the next filtration. A portion of the filtered water is discharged, and the other portion of the water enters the dissolved air water transport component 22 to participate in the next filtration.

[0033] Example 2, reference Figure 1-Figure 9 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: the particulate matter content in the wastewater is reduced. Compared with Example 1, further, the dissolved air water delivery component 22 includes a second connecting pipe 221 arranged on the mixing tank 21, which is used to deliver the dissolved air water into the mixing tank 21, a second self-priming pump 222 arranged on the second connecting pipe 221, which is used to collect the water filtered by the filtering and recycling unit 4 to make dissolved air water, and a compressed gas storage tank 223 arranged on the second connecting pipe 221, which is used to store compressed air, and cooperate with the filtered water extracted by the second self-priming pump 222 to form dissolved air water, and an air compressor is arranged on the compressed gas storage tank 223, which is used to replenish compressed air for the compressed gas storage tank 223.

[0034] The micronizing mixing assembly 23 includes a first support frame 231 disposed on the second connecting pipe 221, which plays a supporting role and rotates a first dissolved air water output member 232 and a second dissolved air water output member 233 disposed on the first support frame 231, so as to transport the dissolved air water into the mixing pool 21, and a power assembly 234 disposed on the first support frame 231, which is used to drive the first dissolved air water output member 232 and the second dissolved air water output member 233 to rotate, so that the water flow driven by the first dissolved air water output member 232 and the second dissolved air water output member 233 collides, so that the bubbles collide to produce smaller bubbles, and at the same time, the dissolved air water and the wastewater are fully mixed, and the bubbles are fully in contact with the fine particles in the wastewater; The first support frame 231 is provided with a support plate 2311 that matches the power assembly 234 and plays a supporting role; The first dissolved air water output member 232 includes a rotating sleeve 2321 rotatably disposed on the second connecting tube 221, an output end 2322 rotatably disposed on the rotating sleeve 2321, the output end 2322 is connected to the second connecting tube 221 through the rotating sleeve 2321, and is used to output dissolved air water, a micropore 2323 disposed on the output end 2322, and is used to cooperate with the dissolved air water to generate bubbles, and a spiral blade 2324 disposed on the output end 2322, and is used to rotate with the output end 2322 to stir the dissolved air water and waste water in the mixing tank 21, so that the dissolved air water discharged from the micropore 2323 is further cut to generate smaller bubbles, and at the same time drive the dissolved air water and the waste water to be further mixed; The second dissolved air water output member 233 and the first dissolved air water output member 232 have the same structure, size and rotation direction, and the second dissolved air water output member 233 and the first dissolved air water output member 232 play the same role.

[0035] Among them, the power component 234 includes a first motor 2341 arranged on the support plate 2311 for generating power, an input gear 2342 arranged on the first motor 2341, which is used to rotate in cooperation with the first motor 2341 and rotate the first rotating shaft 2343 arranged on the support plate 2311, an output gear 2344 arranged on the first rotating shaft 2343 for rotation and meshing with the input gear 2342, which is used to rotate in cooperation with the input gear 2342, thereby driving the first rotating shaft 2343 to rotate, a transmission belt 2345 arranged on the first rotating shaft 2343, a second rotating shaft 2346 arranged on the support plate 2311 for transmission in cooperation with the rotation of the first rotating shaft 2343, and a third rotating shaft 2347 arranged on the support plate 2311, the second rotating shaft 2346 and the third rotating shaft 2347 are used to support the transmission belt 2345 and rotate in cooperation with the transmission of the transmission belt 2345.

[0036] The rotating sleeve 2321, the second dissolved air water output member 233, the first rotating shaft 2343, the second rotating shaft 2346, and the third rotating shaft 2347 are all provided with transmission teeth, and both sides of the transmission belt 2345 are provided with tooth grooves matching the transmission teeth, and the transmission teeth and tooth grooves cooperate to improve the accuracy of transmission; The rotating shaft sleeve 2321 and the second dissolved air water output member 233 are respectively connected to the two sides of the transmission belt 2345. In this way, when the transmission belt 2345 is transmitting, the rotating shaft sleeve 2321 and the second dissolved air water output member 233 rotate in opposite directions, so that the water flow driven by the second dissolved air water output member 233 and the spiral blade 2324 is in opposite directions, so that the two water flows collide, driving the bubbles in the water flow to collide, generating smaller bubbles, and at the same time making the dissolved air water and wastewater better mixed, thereby improving the separation effect.

[0037] The solid-liquid separation unit 3 includes a second separation tank 31 disposed on the mixing tank 21 for solid-liquid separation of the gas-water mixture, a scraper 32 disposed on the second separation tank 31 for scraping off foam and scum formed by the bubbles driving the particles to float, a waste collection tank 33 disposed on the second separation tank 31 for collecting foam and scum, a third connecting pipe 34 disposed on the second separation tank 31 for conveying the clear liquid in the second separation tank 31, and a third self-priming pump 35 disposed on the third connecting pipe 34 for generating suction to convey the clear liquid through the third connecting pipe 34 into the filtration and reuse unit 4 for further filtration; A first discharge port 311 is provided at the bottom of the second separation tank 31 for discharging precipitated impurities, and a second discharge port 331 is provided at the bottom of the waste collection tank 33 for discharging collected foam and scum.

[0038] The scraper 32 includes a second support frame 321 disposed on the second separation tank 31, a transmission roller 322 disposed on the second support frame 321 for supporting, and used for rotating; a second motor 323 disposed on the transmission roller 322 for generating power to drive the transmission roller 322 to rotate; a conveyor belt 324 disposed on the transmission roller 322 for transmitting in coordination with the rotation of the transmission roller 322; and a scraper 325 disposed on the conveyor belt 324 for cooperating with the transmission of the conveyor belt 324 to scrape the liquid surface of the gas-water mixture in the second separation tank 31, and collect the foam and scum and send them to the waste collection tank 33; The second separation tank 31 is provided with a guide plate 312 that cooperates with the scraper 325. The scraper 325 is in contact with the guide plate 312. As the scraper 325 continues to move, the collected foam and scum are sent to the guide plate 312 and then sent to the waste collection tank 33 to prevent excess water from entering the waste collection tank 33.

[0039] The rest of the structure is the same as that of Example 1.

[0040] In summary, when the first self-priming pump 14 transports the preliminarily filtered wastewater in the first separation tank 11 from the bottom of the mixing tank 21 through the first connecting pipe 13, the second self-priming pump 222 cooperates with the compressed gas storage tank 223 to produce dissolved air water, and the dissolved air water is transported into the output end 2322 through the second connecting pipe 221, and is sprayed out from the micropores 2323 to mix with the wastewater. At this time, the first motor 2341 is started, and the first rotating shaft 2343 is driven to rotate through the input gear 2342 and the output gear 2344. At this time, the transmission belt 2345 starts to transmit, and the rotating shaft sleeve 2321 and the second dissolved air water output member 233 are matched. The transmission belt 2345 is driven to rotate, and the output end 2322 and the second dissolved air water output member 233 are driven to rotate, so as to stir the dissolved air water and waste water in the mixing tank 21, so that the dissolved air water discharged from the micropores 2323 is further cut to generate smaller bubbles, and the dissolved air water and waste water are further mixed. At this time, since the spiral blades 2324 and the second dissolved air water output member 233 rotate in opposite directions, the water flows driven by the spiral blades 2324 and the second dissolved air water output member 233 collide with each other, so that the bubbles collide with each other to generate smaller bubbles, and the dissolved air water and waste water are fully mixed, and the bubbles are fully in contact with the fine particles in the waste water; When the gas-water mixture in the mixing tank 21 gradually increases, the evenly mixed gas-water mixture enters the second separation tank 31 from the upper part of the mixing tank 21, and the gas-water mixture entering the second separation tank 31 undergoes solid-liquid separation. At this time, the bubbles drive the small particles and floating objects in the gas-water mixture to float up quickly, and the remaining impurities sink to form precipitation. At this time, the second motor 323 starts, driving the scraper 325 to scrape the liquid surface of the gas-water mixture in the second separation tank 31, and collects the floating foam and scum and sends them to the guide plate 312, and then sends them to the waste collection tank 33. At this time, the upper layer of the gas-water mixture in the second separation tank 31 is foam and complex, the lower layer is precipitation, and the middle position is liquid after solid-liquid separation. At this time, the third self-priming pump 35 cooperates with the third connecting pipe 34 to transport the clear liquid in the middle position of the second separation tank 31 into the filtration and reuse unit 4 for further filtration.

[0041] Example 3, reference Figure 1-Figure 10 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: the water filtering efficiency is improved to achieve circulating filtering. Compared with the embodiment 1, further, the filtering and recycling unit 4 includes a water filter tank 41 arranged on the waste collection tank 33, used to hold the clear liquid transported by the third connecting pipe 34, a filter membrane 42 arranged on the water filter tank 41, used to filter the clear liquid, and a drain pipe 43 arranged at the bottom of the water filter tank 41, used to discharge the filtered water; One end of the second connecting pipe 221 is connected to the drain pipe 43 through an electronic valve, so that a portion of the filtered water enters the second connecting pipe 221 through the drain pipe 43 and is used as a raw material for generating dissolved air water to participate in the filtration again.

[0042] Among them, multiple groups of filter membranes 42 are arranged, and the filter membranes 42 are inclined in the filter tank 41 to increase the contact area between the clear liquid and the filter membrane 42 and improve the filtration efficiency. The inclined directions of adjacent filter membranes 42 are opposite, and the filter holes of the filter membrane 42 gradually decrease from top to bottom. In this way, through the cooperation of layer-by-layer filtration and gravity, it is possible to prevent a certain layer of the filter membrane 42 from being blocked, resulting in difficulty in filtering water, thereby extending the service life of the equipment and reducing the maintenance frequency.

[0043] The rest of the structure is the same as that of Example 2.

[0044] In summary, when the third connecting pipe 34 transports the clear liquid into the filter tank 41, the liquid passes through the layers of filter membranes 42 to filter out the colored substances and other impurities in the clear liquid. When the clear liquid enters the filter membrane 42, the clear liquid flows downward while being filtered on the filter membrane 42 due to the effect of gravity, accelerating the filtration. At the same time, particulate impurities of different sizes are retained on different filter membranes 42, effectively preventing the filter membrane 42 from being blocked.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A down processing wastewater treatment device, characterized in that: It comprises a primary filtering unit (1), an air-water mixing unit (2) arranged on the primary filtering unit (1), a solid-liquid separation unit (3) arranged on the air-water mixing unit (2), and a filtering and recycling unit (4) arranged on the solid-liquid separation unit (3); The air-water mixing unit (2) comprises a mixing pool (21) arranged on the primary filtering unit (1), a dissolved air-water conveying component (22) arranged on the mixing pool (21), and a micronizing mixing component (23) arranged on the mixing pool (21).

2. The down processing wastewater treatment device according to claim 1, characterized in that: The primary filtering unit (1) comprises a first separation tank (11) arranged on the mixing tank (21), a separation element (12) arranged on the first separation tank (11), a first connecting pipe (13) arranged on the first separation tank (11), and a first self-priming pump (14) arranged on the first connecting pipe (13); The separation element (12) comprises a first connecting rod (121) and a second connecting rod (122) arranged on the first separation tank (11), and a filter screen (123) arranged between the first connecting rod (121) and the second connecting rod (122); One end of the first connecting pipe (13) is connected to the bottom of the mixing tank (21) via an electronic valve.

3. The down processing wastewater treatment device according to claim 2, characterized in that: The dissolved air-water conveying assembly (22) comprises a second connecting pipe (221) arranged on the mixing tank (21), a second self-priming pump (222) arranged on the second connecting pipe (221), and a compressed gas storage tank (223) arranged on the second connecting pipe (221).

4. The down processing wastewater treatment device according to claim 3, characterized in that: The micronizing and mixing assembly (23) comprises a first support frame (231) arranged on the second connecting pipe (221), a first dissolved air and water output member (232) and a second dissolved air and water output member (233) rotatably arranged on the first support frame (231), and a power assembly (234) arranged on the first support frame (231); The first support frame (231) is provided with a support plate (2311) that cooperates with the power assembly (234); The first dissolved air water output member (232) comprises a rotating sleeve (2321) rotatably disposed on the second connecting pipe (221), an output end (2322) disposed on the rotating sleeve (2321), a microhole (2323) disposed on the output end (2322), and a spiral blade (2324) disposed on the output end (2322); The second dissolved air water output element (233) and the first dissolved air water output element (232) have the same structure, size and rotation direction.

5. The down processing wastewater treatment device according to claim 4, characterized in that: The power assembly (234) comprises a first motor (2341) arranged on the support plate (2311), an input gear (2342) arranged on the first motor (2341), a first rotating shaft (2343) rotatably arranged on the support plate (2311), an output gear (2344) arranged on the first rotating shaft (2343) and meshing with the input gear (2342), a transmission belt (2345) arranged on the first rotating shaft (2343), a second rotating shaft (2346) arranged on the support plate (2311), and a third rotating shaft (2347) arranged on the support plate (2311).

6. The down processing wastewater treatment device according to claim 5, characterized in that: The rotating shaft sleeve (2321), the second dissolved air water output element (233), the first rotating shaft (2343), the second rotating shaft (2346), and the third rotating shaft (2347) are all provided with transmission teeth, and tooth grooves matching the transmission teeth are provided on both sides of the transmission belt (2345); The rotating shaft sleeve (2321) and the second dissolved air and water output member (233) are respectively connected to two sides of the transmission belt (2345).

7. The down processing wastewater treatment device according to claim 6, characterized in that: The solid-liquid separation unit (3) comprises a second separation tank (31) arranged on the mixing tank (21), a scraper (32) arranged on the second separation tank (31), a waste collection tank (33) arranged on the second separation tank (31), a third connecting pipe (34) arranged on the second separation tank (31), and a third self-priming pump (35) arranged on the third connecting pipe (34); The second separation tank (31) is provided with a first discharge port (311) at the bottom, and the waste collection tank (33) is provided with a second discharge port (331) at the bottom.

8. The down processing wastewater treatment device according to claim 7, characterized in that: The scraper (32) comprises a second support frame (321) arranged on the second separation tank (31), a transmission roller (322) arranged on the second support frame (321), a second motor (323) arranged on the transmission roller (322), a conveyor belt (324) arranged on the transmission roller (322), and a scraper (325) arranged on the conveyor belt (324); The second separation tank (31) is provided with a material guide plate (312) that cooperates with the scraper (325).

9. The down processing wastewater treatment device according to claim 8, characterized in that: The filtration and recycling unit (4) comprises a water filter (41) arranged on the waste collection pool (33), a filter membrane (42) arranged on the water filter (41), and a drainage pipe (43) arranged at the bottom of the water filter (41); One end of the second connecting pipe (221) is connected to the drain pipe (43) via an electronic valve.

10. The down processing wastewater treatment device according to claim 9, characterized in that: The filter membranes (42) are arranged in a plurality of groups. The filter membranes (42) are arranged in an inclined manner in the water filter tank (41). The inclined directions of adjacent filter membranes (42) are opposite. The filter pores of the filter membranes (42) gradually decrease from top to bottom.

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