Industrial refractory organic wastewater recycling treatment equipment

Abstract

The invention relates to the field of wastewater treatment, in particular to industrial degradation-resistant organic wastewater recycling treatment equipment which comprises a treatment box and a sludge settling unit. The sludge settling unit comprises a sludge settling shell vertically and fixedly arranged on the lower portion of the treatment box, the sludge settling shell is of a cylindrical structure with an opening in the upper portion, a first filter screen is arranged at the bottom of the sludge settling shell and is of a rotating body structure, and the upper horizontal section of the first filter screen is smaller than the lower horizontal section of the first filter screen. A plurality of sludge settling grooves are formed in the bottom of the sludge settling shell, a bearing ring is rotationally arranged on the lower portion of the sludge settling shell along the axis of the sludge settling shell, a plurality of bearing cavities are evenly formed in the bearing ring around the axis of the bearing ring, a pressing unit is arranged above each sludge settling groove, and each pressing unit comprises a second filter screen moving in the vertical direction. According to the invention, not only is the function that the silt settling unit can automatically discharge sediments realized, but also the discharged sediments can be prevented from being mixed with a large amount of organic wastewater.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and specifically to an industrial refractory organic wastewater recycling treatment device. Background Art

[0002] High-concentration organic wastewater purification and recycling treatment equipment often fails to integrate aerobic treatment, anaerobic treatment, sedimentation treatment, and filtration and adsorption treatment into one, which results in its inability to fully and efficiently remove various impurities such as bacteria and organic substances in the wastewater. Moreover, its structure is single, and it is not easy to independently disassemble and maintain the filter screen structure and sediment collection structure, etc., which leads to low practicality of the device.

[0003] Publication No. CN117247150A discloses a high-concentration organic wastewater multi-stage purification and recycling treatment equipment, including a carrier frame, an anaerobic treatment tank, and a water pump. One end inside the carrier frame is welded with an aerobic treatment tank, the anaerobic treatment tank is welded to the other end inside the carrier frame. Concave sludge hoppers are uniformly installed at the bottoms of the aerobic treatment tank and the anaerobic treatment tank. Aeration mechanisms are welded on the aerobic treatment tank and the anaerobic treatment tank above the concave sludge hoppers. The aeration mechanism includes an annular main air supply pipe, an air pump, an air inlet pipe fitting, and an exhaust branch pipe. A water guide pipe is connected between the aerobic treatment tank and the anaerobic treatment tank, and the water pump is installed on the water guide pipe. The top end of the aerobic treatment tank is welded with an air inlet pipe fitting, the bottom end of the anaerobic treatment tank is welded with a drainage pipe fitting. Lids are installed on the tops of the aerobic treatment tank and the anaerobic treatment tank. Reserved installation openings are provided inside the aerobic treatment tank and the anaerobic treatment tank, and activated carbon filter mesh plates are installed on the reserved installation openings. Reinforcement brackets are fixed on the activated carbon filter mesh plates, and vibrators are installed on the reinforcement brackets.

[0004] The above solution combines aerobic treatment and anaerobic treatment to achieve multi-stage purification treatment of water bodies. However, a concave sludge hopper is provided inside the aerobic treatment tank, and the wastewater needs to pass through the concave sludge hopper inside the aerobic treatment tank before flowing into the anaerobic treatment tank. The concave sludge hopper does not have an automatic cleaning function, and it will become blocked after being used for a period of time. Moreover, since the concave sludge hopper is located at the lower side inside the aerobic treatment tank, it is necessary to reach inside the aerobic treatment tank to clean the concave sludge hopper, which is difficult to clean and has a high maintenance frequency. Summary of the Invention

[0005] In view of the above problems, an industrial difficult-to-degrade organic wastewater recycling and treatment equipment is provided. A sludge shell is set and a first filter screen is set in the sludge shell, so that the upper cross-section of the first filter screen is smaller than the lower cross-section of the first filter screen, so that after the scraper scrapes off the attachments attached to the first filter screen, the sediment can fall more easily on the bottom of the sludge shell. In the collection mode, the sediment at the bottom of the sludge shell is pushed into the sludge tank and falls into the receiving cavity under the action of the scraper. Every time the scraper rotates one circle, the corresponding pressing unit above each sludge tank will descend, and the pressing unit presses the sediment in the receiving cavity through the second filter screen, so that the liquid in the sediment is squeezed out. After multiple pressings, when the sediment in the receiving cavity is full, the sludge unit switches to the cleaning mode, and the receiving ring rotates to connect the receiving tank with the discharge tank, and the sediment in the receiving tank is discharged through the discharge tank.

[0006] In order to solve the problems of the prior art, the present invention provides an industrial refractory organic wastewater recycling and treatment equipment, comprising a treatment box and a sludge unit arranged at the lower part of the treatment box; the sludge unit comprises a sludge shell vertically fixedly arranged at the lower part of the treatment box, the sludge shell is a cylindrical structure with an opening at the upper part, a first filter screen is arranged at the bottom of the sludge shell along the axis of the sludge shell, the first filter screen is a rotating body structure, and the upper horizontal section of the first filter screen is smaller than the lower horizontal section of the first filter screen, and a plurality of sludge grooves are evenly opened at the bottom of the sludge shell around the axis of the sludge shell A receiving ring is arranged at the lower part of the silt shell for rotation along the axis of the silt shell, and a plurality of receiving cavities are evenly arranged on the receiving ring around the axis of the receiving ring. The receiving cavities are used to receive the sediment at the bottom of the silt shell, and the receiving cavities correspond to the silt grooves one by one. During the rotation of the receiving ring, the projections of the receiving cavities and the silt grooves in the vertical direction can completely overlap. A pressing unit is arranged above each silt groove, and the pressing unit includes a second filter screen that moves along the vertical direction. After the second filter screen descends and extends into the receiving cavity, the second filter screen squeezes the sediment in the receiving cavity.

[0007] Preferably, a bottom plate for receiving the receiving ring is provided at the lower part of the receiving ring, the bottom plate is an annular structure and is fixedly connected to the sludge shell, a plurality of discharge grooves are evenly opened on the bottom plate around the axis of the bottom plate, the discharge grooves correspond to the receiving grooves one by one, the projections of the discharge grooves and the sludge grooves in the vertical direction are staggered, and the sludge unit includes a collection mode and a cleaning mode, in the collection mode, the receiving grooves are connected and aligned with the sludge grooves, and the receiving grooves and the bottom plate form a receiving cavity; in the cleaning mode, the receiving grooves are connected and aligned with the discharge grooves.

[0008] Preferably, a scraper is provided at the bottom of the sludge shell, and the scraper rotates around the axis of the sludge shell. The sweeping area formed by the rotation of the scraper completely covers the upper part of the first filter screen and the bottom of the sludge shell. A driving unit for driving the scraper to rotate is provided at the bottom of the scraper.

[0009] Preferably, a traction unit for driving the pressing unit to move in the vertical direction is arranged above the pressing unit. The traction unit includes a rotating shaft penetrating through the first filter screen along the axis of the sediment shell. The rotating shaft is rotationally matched with the first filter screen. A traction ring is arranged on the periphery of the upper part of the rotating shaft. The traction ring is fixedly connected with the rotating shaft. A traction groove is arranged on the traction ring. The pressing unit extends into the traction groove and is slidably matched with the traction groove.

[0010] Preferably, the pressing unit further includes a fixing plate horizontally and fixedly arranged on the inner wall of the sediment shell. A pressing plate is arranged to move vertically below the fixing plate. The second filter screen is arranged at the lower part of the pressing plate. A sliding rod that synchronously rises and falls with the pressing plate is vertically arranged on the upper part of the pressing plate. A traction block is fixedly arranged at the top of the sliding rod. The traction block extends into the traction groove.

[0011] Preferably, a sliding sleeve is vertically and fixedly arranged on the upper part of the pressing plate. The sliding rod extends into the sliding sleeve and is slidably matched with the sliding sleeve. There is a gap between the bottom of the sliding rod and the sliding sleeve. A spring is vertically arranged in the gap. Two ends of the spring are respectively fixedly connected with the end of the sliding rod and the bottom of the sliding sleeve. A pressure sensor is arranged at the connection between the sliding rod and the spring.

[0012] Preferably, a cleaning unit is arranged below the first filter screen. The cleaning unit includes an air-filled shell rotatably arranged at the lower part of the first filter screen. A rotating plate is rotatably arranged in the air-filled shell. The rotating plate and the air-filled shell form an air-filled cavity. An air outlet shell is arranged on one side of the air-filled shell. The air outlet shell communicates with the air-filled cavity. An air pump is arranged at the lower part of the rotating plate. The air pump communicates with the air-filled cavity. An air outlet is arranged at the upper part of the air outlet shell.

[0013] Preferably, a receiving box is arranged below the discharge groove. An extension pipe is vertically arranged between the receiving box and the discharge groove. A fan is arranged at the upper part of the receiving box on one side of the extension pipe. An air vent groove is arranged at the bottom of the sediment shell directly above the discharge groove. When the sediment unit is in the cleaning mode, the fan is started, and the outside air sequentially passes through the sediment groove, the receiving groove, the discharge groove, and the extension pipe from top to bottom through the air vent groove.

[0014] Preferably, a plurality of magnetic attraction blocks are arranged on the inner ring side wall of the receiving ring. The magnetic attraction blocks are evenly arranged around the axis of the receiving ring. A plurality of electromagnets are further arranged around the axis of the receiving ring in the inner ring of the receiving ring. The electromagnets are fixedly arranged on the sediment shell, and the electromagnets are sequentially electrified.

[0015] Preferably, a plurality of clamping grooves are evenly arranged around the axis of the receiving ring on the outer ring peripheral wall of the receiving ring. A plurality of electric push rods are horizontally arranged on the sediment shell. After the sediment unit completes the mode switch, the output ends of the electric push rods extend out and are clamped and matched with the clamping grooves.

[0016] The beneficial effects of the present invention compared with the prior art are: 1. The present invention sets a sediment shell and a first filter screen inside the sediment shell, such that the upper cross-section of the first filter screen is smaller than the lower cross-section of the first filter screen. After the scraper scrapes off the attachments adhering to the first filter screen, the sediment can more easily fall to the bottom of the sediment shell. In the collection mode, the sediment located at the bottom of the sediment shell is pushed into the sediment groove by the scraper and falls into the receiving cavity. Every time the scraper rotates one week, the pressing unit corresponding to the upper part of each sediment groove will descend. The pressing unit presses the sediment in the receiving cavity through the second filter screen, so that the liquid in the sediment is extruded. After multiple presses, when the sediment in the receiving cavity is full, the sediment unit switches to the cleaning mode. The receiving ring rotates to connect the receiving groove with the discharge groove, and the sediment in the receiving groove is discharged through the discharge groove. In this way, not only the function that the sediment unit can automatically discharge the sediment is realized, but also the situation that a large amount of organic wastewater is mixed in the discharged sediment can be avoided.

[0017] 2. By setting a cleaning unit at the lower part of the first filter screen, the driving unit can drive the inflatable shell to rotate, and then the air outlet shell rotates synchronously with the inflatable shell. At the same time, the air pump inflates the inflatable cavity, so that the air outlet shell blows air upward from the bottom to the first filter screen through the air outlet. In this way, some stubborn sediment adhering to the first filter screen can be blown up, so that the situation that the sediment in the industrial wastewater blocks the first filter screen during the filtration of the industrial wastewater can be avoided.

[0018] 3. Since in the collection mode, the pressing unit presses the sediment in the receiving cavity multiple times, when the receiving groove is aligned with the discharge groove, it is easy to occur that the compacted sediment in the receiving groove cannot be smoothly discharged from the discharge groove. After setting the receiving box and a fan on the receiving box, the air in the receiving box is pumped out by the fan, so that a negative pressure is formed in the receiving box. In this way, the external air can generate a thrust on the sediment in the receiving groove through the ventilation groove. The situation that the sediment is stuck in the receiving groove and cannot be discharged is avoided. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of an industrial refractory organic wastewater recycling and treatment device of the present invention.

[0020] Figure 2 is a sectional three-dimensional schematic of an industrial refractory organic wastewater recycling and treatment device of the present invention Figure 1 。

[0021] Figure 3 is an industrial refractory organic wastewater recycling and treatment device of the present invention Figure 2 partial enlarged schematic diagram at A in

[0022] Figure 4It is a partial enlarged schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention Figure 2 at position B.

[0023] Figure 5 It is a sectional three-dimensional schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention Figure 2 .

[0024] Figure 6 It is a partial enlarged schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention Figure 5 at position C.

[0025] Figure 7 It is a partial enlarged schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention Figure 5 at position D.

[0026] Figure 8 It is a three-dimensional schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention after removing the treatment tank.

[0027] Figure 9 It is a three-dimensional schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention after removing part of the receiving tank and the treatment tank Figure 1 .

[0028] Figure 10 It is a sectional three-dimensional schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention after removing the treatment tank.

[0029] Figure 11 It is a partial enlarged schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention Figure 10 at position E.

[0030] Figure 12 It is a three-dimensional schematic view of the industrial refractory organic wastewater recycling and treatment equipment of the present invention after removing part of the receiving tank and the treatment tank Figure 2 .

[0031] The reference numerals in the figure are: 1. Processing tank; 2. Sedimentation unit; 21. Sedimentation shell; 211. Sedimentation tank; 212. Receiving box; 213. Extension pipe; 214. Fan; 215. Ventilation slot; 22. First filter screen; 23. Receiving ring; 231. Receiving groove; 232. Bottom plate; 233. Discharge groove; 234. Magnetic attraction block; 235. Electromagnet; 236. Electric push rod; 24. Pressing unit; 241. Second filter screen; 242. Pressing plate; 243. Slide bar; 244. Traction block; 245. Fixed plate; 246. Slide sleeve; 247. Spring; 25. Scraper; 26. Driving unit; 261. Rotary driver; 262. Gear; 263. Tooth ring; 27. Traction unit; 271. Rotating shaft; 272. Traction ring; 2721. Traction groove; 28. Cleaning unit; 281. Inflatable shell; 282. Air outlet shell; 283. Rotating plate; 284. Air pump. Detailed implementation manners

[0032] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0033] Refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 : An industrial refractory organic wastewater recycling and treatment device, including a processing tank 1 and a sedimentation unit 2 arranged at the lower part of the processing tank 1; the sedimentation unit 2 includes a sedimentation shell 21 vertically and fixedly arranged at the lower part of the processing tank 1, the sedimentation shell 21 is a cylindrical structure with an opening at the upper part, a first filter screen 22 is arranged along the axis of the sedimentation shell 21 at the bottom of the sedimentation shell 21, the first filter screen 22 is a rotating body structure, and the upper horizontal section of the first filter screen 22 is smaller than the lower horizontal section of the first filter screen 22. A plurality of sedimentation tanks 211 are evenly opened around the axis of the sedimentation shell 21 at the bottom of the sedimentation shell 21. A receiving ring 23 is rotatably arranged along the axis of the sedimentation shell 21 at the lower part of the sedimentation shell 21. A plurality of receiving cavities are evenly arranged around the axis of the receiving ring 23 on the receiving ring 23. The receiving cavities are used to receive the sediment at the bottom of the sedimentation shell 21. The receiving cavities correspond to the sedimentation tanks 211 one by one. During the rotation of the receiving ring 23, the projections of the receiving cavities and the sedimentation tanks 211 in the vertical direction can completely coincide. A pressing unit 24 is arranged above each sedimentation tank 211. The pressing unit 24 includes a second filter screen 241 that moves vertically. After the second filter screen 241 descends and extends into the receiving cavity, the second filter screen 241 squeezes the sediment in the receiving cavity.

[0034] In the process of treating industrial refractory organic wastewater, it usually needs to go through processes such as aerobic treatment, anaerobic treatment, sedimentation treatment, and filtration and adsorption treatment. Among them, in the process of sedimentation treatment, the existing treatment method is to set a concave sediment hopper at the bottom of the treatment tank 1. The falling sediment will be intercepted by the concave sediment hopper, and the wastewater can pass through the concave sediment hopper. However, due to the continuity of wastewater treatment and the fact that the concave sediment hopper does not have an automatic cleaning function, after a period of use, the concave sediment hopper is blocked by sediment, the filtration capacity of the concave sediment hopper decreases, and a large amount of sediment accumulates in the concave sediment hopper. In this way, it is necessary to stop the treatment equipment and remove the concave sediment hopper, which is time-consuming and laborious and seriously affects the treatment efficiency of organic wastewater.

[0035] To avoid the above situation, the sedimentation unit 2 set at the bottom of the treatment tank 1 is improved so that the sedimentation unit 2 can regularly discharge the sediment by itself during the filtration process. The specific structure and working steps of the sedimentation unit 2 are as follows: First, the organic wastewater is injected into the treatment box 1 from the upper part of the treatment box 1. The treatment box 1 is divided into aerobic type and anaerobic type. Since the structures of the two treatment boxes 1 are basically the same, they are collectively referred to as the treatment box 1. After being treated by the treatment box 1, the organic wastewater enters the sludge unit 2. The sludge unit 2 is provided with a sludge shell 21. The sludge shell 21 is provided with a first filter screen 22. The first filter screen 22 is a rotating body structure. The sediment in the organic wastewater is intercepted by the first filter screen 22 during the descent process, while the liquid in the organic wastewater can be discharged through the first filter screen 22. The intercepted sediment is finally gathered at the bottom of the sludge shell 21. A scraper 25 is provided at the bottom of the sludge shell 21. The scraper 25 rotates around the axis of the sludge shell 21. The sweeping area formed by the rotation of the scraper 25 completely covers the upper part of the first filter screen 22 and the bottom of the sludge shell 21. In this way, under the rotation of the scraper 25, the scraper 25 can scrape off the sediment attached to the first filter screen 22. Since the outside of the first filter screen 22 is an inclined structure, the scraped off sediment falls to the bottom of the sludge shell 21 under the guidance of the inclined structure outside the first filter screen 22. When the scraper 25 scrapes off the sediment at the bottom of the sludge shell 21, when the sediment moves into the sludge tank 211, the sediment falls into the sludge tank 211. It is worth noting that the sludge unit 2 has a collection mode and a cleaning mode. In the collection mode, the projection of the sludge tank 211 and the receiving cavity in the vertical direction coincide, and the sediment falls into the receiving cavity through the sludge tank 211. As the scraper 25 rotates continuously, more and more sediment falls into the sludge tank 211. In the process of the rotation of the scraper 25, the pressing unit 24 will also rise and fall in the vertical direction. Every time the scraper 25 rotates one circle, the pressing unit 24 will fall once. When the pressing unit 24 descends, the second filter screen 241 in the pressing unit 24 passes through the sludge tank 211 in the vertical direction and slides into the receiving chamber. The second filter screen 241 squeezes the sediment in the receiving chamber so that the receiving chamber can receive more sediment. After the sediment in the receiving chamber is full, the receiving ring 23 rotates to stagger the receiving chamber and the sludge tank 211. The staggered receiving ring 23 discharges the full sediment. Since the sediment is squeezed by the pressing unit 24, the discharged sediment has a lower water content, which avoids the situation where the sludge unit 2 discharges more organic wastewater along with the sediment in the cleaning mode.

[0036] Reference Figure 8 and Figure 11: A bottom plate 232 for supporting the receiving ring 23 is provided at the lower part of the receiving ring 23. The bottom plate 232 is of an annular structure and is fixedly connected to the sediment shell 21. A plurality of discharge grooves 233 are evenly formed on the bottom plate 232 around the axis of the bottom plate 232. The discharge grooves 233 correspond to the receiving grooves 231 one by one. The projections of the discharge grooves 233 and the sediment grooves 211 in the vertical direction are staggeredly arranged. The sediment unit 2 includes a collection mode and a cleaning mode. In the collection mode, the receiving groove 231 is communicated and aligned with the sediment groove 211, and the receiving groove 231 and the bottom plate 232 form a receiving cavity. In the cleaning mode, the receiving groove 231 is communicated and aligned with the discharge groove 233.

[0037] Refer to Figure 2 and Figure 3 : A scraper 25 is provided at the bottom of the sediment shell 21. The scraper 25 rotates around the axis of the sediment shell 21. The sweeping area formed by the rotation of the scraper 25 completely covers the upper part of the first filter screen 22 and the bottom of the sediment shell 21. A driving unit 26 for driving the rotation of the scraper 25 is provided at the lower part of the scraper 25.

[0038] Refer to Figure 9 and Figure 12 : A traction unit 27 for driving the pressing unit 24 to move in the vertical direction is provided above the pressing unit 24. The traction unit 27 includes a rotating shaft 271 penetrating through the first filter screen 22 along the axis of the sediment shell 21. The rotating shaft 271 is rotationally matched with the first filter screen 22. A traction ring 272 is provided on the outer periphery of the upper part of the rotating shaft 271. The traction ring 272 is fixedly connected to the rotating shaft 271. A traction groove 2721 is formed on the traction ring 272. The pressing unit 24 extends into the traction groove 2721 and is slidably matched with the traction groove 2721.

[0039] The scraper 25 is fixedly arranged on the rotating shaft 271.

[0040] Refer to Figure 6 : The pressing unit 24 further includes a fixing plate 245 horizontally and fixedly arranged on the inner wall of the sediment shell 21. A pressing plate 242 is movably arranged in the vertical direction below the fixing plate 245. The second filter screen 241 is arranged at the lower part of the pressing plate 242. A sliding rod 243 vertically arranged on the upper part of the pressing plate 242 and synchronously rising and falling with the pressing plate 242 is provided. A traction block 244 is fixedly arranged at the top of the sliding rod 243. The traction block 244 extends into the traction groove 2721.

[0041] Refer to Figure 6: A sliding sleeve 246 is vertically and fixedly arranged on the upper part of the pressing plate 242. The sliding rod 243 extends into the sliding sleeve 246 and is in sliding fit with the sliding sleeve 246. There is a gap between the bottom of the sliding rod 243 and the sliding sleeve 246. A spring 247 is vertically arranged in the gap. The two ends of the spring 247 are respectively fixedly connected to the end of the sliding rod 243 and the bottom of the sliding sleeve 246. A pressure sensor is arranged at the connection of the sliding rod 243 and the spring 247.

[0042] When the sedimentation unit 2 is in the collection mode, the driving unit 26 is started. The driving unit 26 drives the rotating shaft 271 to rotate. The rotating shaft 271 drives the traction ring 272 and the scraper 25 to rotate synchronously. The traction groove 2721 on the traction ring 272 has a highest point and a lowest point. The projections of the scraper 25 and the lowest point of the traction groove 2721 in the vertical direction are staggered. In this way, when the traction ring 272 rotates, after the traction groove 2721 guides the traction block 244 to descend, the descending second filter screen 241 will not collide with the rotating scraper 25. After the traction block 244 is guided by the traction groove 2721 to descend, the traction block 244 pushes the sliding sleeve 246 through the sliding rod 243 and the spring 247, and then the pressing plate 242 drives the second filter screen 241 to descend. In this way, the second filter screen 241 can pass through the sedimentation tank 211 and enter the receiving cavity. It should be noted that as the sediment in the receiving cavity accumulates more and more, when the second filter screen 241 slides into the receiving cavity, it will be blocked by the sediment, resulting in the spring 247 between the sliding rod 243 and the sliding sleeve 246 being squeezed. The reaction force of the spring 247 acts on the second filter screen 241, so that the second filter screen 241 can squeeze the sediment accumulated in the receiving cavity when descending. In this way, the pressure sensor can monitor the elastic force of the spring 247 in real time. When the actual pressure monitored by the pressure sensor reaches the preset pressure value, the driving unit 26 drives the receiving ring 23 to rotate, so that the receiving groove 231 coincides with the discharge groove 233.

[0043] Refer to Figure 3 、 Figure 4 and Figure 10 : A cleaning unit 28 is arranged below the first filter screen 22. The cleaning unit 28 includes an inflatable shell 281 rotatably arranged at the lower part of the first filter screen 22. A rotating plate 283 is rotatably arranged in the inflatable shell 281. The rotating plate 283 and the inflatable shell 281 form an inflatable cavity. An air outlet shell 282 is arranged on one side of the inflatable shell 281. The air outlet shell 282 communicates with the inflatable cavity. An air pump 284 is arranged at the lower part of the rotating plate 283. The air pump 284 communicates with the inflatable cavity. An air outlet is opened at the upper part of the air outlet shell 282.

[0044] The upper part of the inflatable shell 281 is fixedly connected to the rotating shaft 271. A toothed ring 263 is fixedly sleeved at the bottom of the inflatable shell 281. A gear 262 is meshed on one side of the toothed ring 263. A rotary driver 261 for driving the gear 262 to rotate is arranged at the lower end of the gear 262. The rotary driver 261 is preferably a servo motor. The rotary driver 261 is fixedly arranged on the bottom plate 232. A first switching valve is arranged on the bottom plate 232. The organic wastewater filtered by the first filter screen 22 is discharged through the first switching valve. When the rotary driver 261 is started, the rotary driver 261 drives the toothed ring 263 to rotate through the gear 262, thereby causing the inflatable shell 281 to rotate. The air pump 284 is fixedly arranged on the bottom plate 232. The rotating plate 283 rotates relative to the inflatable shell 281. The air outlet shell 282 arranged on the inflatable shell 281 rotates synchronously with the inflatable shell 281. The air outlet shell 282 blows air from the bottom up to the first filter screen 22 through the air outlet. In this way, some stubborn sediment attached to the first filter screen 22 can be blown up, so as to avoid the situation that the sediment in the organic wastewater blocks the first filter screen 22 during the process of filtering the organic wastewater by the first filter screen 22. It should be noted that the diameter of the gear 262 is smaller than the diameter of the toothed ring 263, so that the rotation speed of the rotating shaft 271 will not be too fast, avoiding the rotation speed of the scraper 25 from being too fast, and ensuring that the scraper 25 is not easy to raise the sediment again during the process of scraping the sediment at the bottom of the sedimentation shell 21.

[0045] Refer to Figure 7 , Figure 10 and Figure 11 : A receiving box 212 is arranged at the lower part of the discharge tank 233. An extension pipe 213 is vertically arranged between the receiving box 212 and the discharge tank 233. A fan 214 is arranged at the upper part of the receiving box 212 on one side of the extension pipe 213. An air vent groove 215 is opened at the bottom of the sedimentation shell 21 directly above the discharge tank 233. When the sedimentation unit 2 is in the cleaning mode, the fan 214 is started, and the outside air sequentially passes through the receiving groove 231, the discharge tank 233 and the extension pipe 213 from top to bottom through the air vent groove 215.

[0046] Since in the collection mode, the pressing unit 24 presses the sediment in the receiving cavity multiple times, when the receiving groove 231 is aligned with the discharge groove 233, it is easy for the compacted sediment in the receiving groove 231 to fail to be smoothly discharged from the discharge groove 233. After the receiving box 212 is provided and the fan 214 is provided on the receiving box 212, the air in the receiving box 212 is extracted by the fan 214, so that a negative pressure is formed in the receiving box 212. In this way, the outside air can generate a thrust on the sediment located in the receiving groove 231 through the ventilation groove 215. It should be noted that the cleaning mode of the sediment unit 2 lasts for a short time, and only needs to discharge the sediment in the receiving groove 231 to switch back to the collection mode. In this way, the situation that a large amount of sediment blocks the sediment unit 2 will not occur.

[0047] Refer to Figure 4 : A plurality of magnetic attraction blocks 234 are arranged on the inner ring side wall of the receiving ring 23, and the magnetic attraction blocks 234 are evenly arranged around the axis of the receiving ring 23. A plurality of electromagnets 235 are also arranged around the axis of the receiving ring 23 in the inner ring of the receiving ring 23. The electromagnets 235 are fixedly arranged on the sediment shell 21, and the electromagnets 235 are energized in sequence.

[0048] Refer to Figures 9 - 11 : A plurality of clamping grooves are evenly formed in the outer circumferential wall of the receiving ring 23 around the axis of the receiving ring 23. A plurality of electric push rods 236 are horizontally arranged on the sediment shell 21. After the sediment unit 2 completes the mode switch, the output end of the electric push rod 236 extends out and is clamped with the clamping groove in a matching manner.

[0049] Through the clamping of the clamping groove by the electric push rod 236, it is ensured that the receiving ring 23 will not deflect again after the mode switch of the sediment unit 2, and it is ensured that in the collection mode, the receiving groove 231 is completely aligned with the sediment groove 211, and in the cleaning mode, the receiving groove 231 is completely aligned with the discharge groove 233.

[0050] Working principle: first, inject the organic wastewater into the treatment box 1 from the upper part of the treatment box 1. After being treated in the treatment box 1, the organic wastewater enters the sludge unit 2. A sludge shell 21 is arranged in the sludge unit 2. A first filter screen 22 is arranged in the sludge shell 21. The first filter screen 22 is a rotating body structure. The sediment in the organic wastewater is intercepted by the first filter screen 22 during the descent process, while the liquid in the organic wastewater can be discharged through the first filter screen 22. The intercepted sediment is finally gathered at the bottom of the sludge shell 21. A scraper 25 is arranged at the bottom of the sludge shell 21. The scraper 25 rotates around the axis of the sludge shell 21. The sweeping area formed by the rotation of the scraper 25 completely covers the upper part of the first filter screen 22 and the bottom of the sludge shell 21. In this way, under the rotation of the scraper 25, the scraper 25 can scrape off the sediment attached to the first filter screen 22. Since the outside of the first filter screen 22 is an inclined structure, the scraped sediment will fall to the bottom of the sludge shell 21 under the guidance of the inclined structure outside the first filter screen 22. When the scraper 25 scrapes off the sediment at the bottom of the sludge shell 21, when the sediment moves into the sludge tank 211, the sediment falls into the sludge tank 211.

[0051] The sludge unit 2 has a collection mode and a cleaning mode. In the collection mode, the vertical projection of the sludge trough 211 coincides with that of the receiving chamber, and the sediment falls into the receiving chamber through the sludge trough 211. As the scraper 25 continues to rotate, more and more sediment passes through the sludge trough 211 and falls into the receiving chamber. In the process of the rotation of the scraper 25, the pressing unit 24 will also rise and fall in the vertical direction. The pressing unit 24 will descend once every rotation of the scraper 25. When the pressing unit 24 descends, the second filter screen 241 in the pressing unit 24 passes through the sludge tank 211 in the vertical direction and slides into the receiving chamber. The second filter screen 241 squeezes the sediment in the receiving chamber so that the receiving chamber can receive more sediment. After the sediment in the receiving chamber is full, the receiving ring 23 rotates to stagger the receiving chamber and the sludge tank 211. The staggered receiving ring 23 discharges the full sediment. Since the sediment is squeezed by the pressing unit 24, the discharged sediment has a lower water content, which avoids the situation where the sludge unit 2 discharges more organic wastewater along with the sediment in the cleaning mode.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An industrial non-degradable organic wastewater recycling treatment device, comprising a treatment box (1) and a sludge unit (2) arranged at the bottom of the treatment box (1); It is characterized in that The sludge unit (2) comprises a sludge shell (21) which is vertically fixedly arranged at the bottom of the treatment box (1); the sludge shell (21) is a cylindrical structure with an opening at the top; a first filter screen (22) is arranged at the bottom of the sludge shell (21) along the axis of the sludge shell (21); the first filter screen (22) is a rotating body structure; the upper horizontal cross-section of the first filter screen (22) is smaller than the lower horizontal cross-section of the first filter screen (22); a plurality of sludge grooves (211) are evenly arranged at the bottom of the sludge shell (21) around the axis of the sludge shell (21); and a receiving ring (23) is arranged at the bottom of the sludge shell (21) so as to rotate along the axis of the sludge shell (21). A plurality of receiving cavities are evenly arranged on the receiving ring (23) around the axis of the receiving ring (23), the receiving cavities are used to receive sediment at the bottom of the sediment shell (21), the receiving cavities correspond to the sediment grooves (211) one by one, and during the rotation of the receiving ring (23), the projections of the receiving cavities and the sediment grooves (211) in the vertical direction can completely overlap, and a pressing unit (24) is arranged above each sediment groove (211), the pressing unit (24) comprises a second filter screen (241) that moves in the vertical direction, and after the second filter screen (241) descends and extends into the receiving cavity, the second filter screen (241) squeezes the sediment in the receiving cavity.

2. The industrial refractory organic wastewater recycling treatment equipment according to claim 1 is characterized in that: A bottom plate (232) for receiving the receiving ring (23) is provided at the bottom of the receiving ring (23); the bottom plate (232) is an annular structure and is fixedly connected to the sludge shell (21); a plurality of discharge grooves (233) are evenly provided on the bottom plate (232) around the axis of the bottom plate (232); the discharge grooves (233) correspond to the receiving grooves (231) one by one; the discharge grooves (233) and the projections of the sludge grooves (211) in the vertical direction are arranged in an interlaced manner; the sludge unit (2) comprises a collection mode and a cleaning mode; in the collection mode, the receiving grooves (231) are connected and aligned with the sludge grooves (211); the receiving grooves (231) and the bottom plate (232) form a receiving cavity; in the cleaning mode, the receiving grooves (231) and the discharge grooves (233) are connected and aligned with each other.

3. The industrial refractory organic wastewater recycling treatment equipment according to claim 1 is characterized in that: A scraper (25) is arranged at the bottom of the silt shell (21). The scraper (25) rotates around the axis of the silt shell (21). The sweeping area formed by the rotation of the scraper (25) completely covers the upper part of the first filter screen (22) and the bottom of the silt shell (21). A driving unit (26) for driving the scraper (25) to rotate is arranged at the bottom of the scraper (25).

4. The industrial refractory organic wastewater recycling treatment equipment according to claim 1 is characterized in that: A traction unit (27) for driving the pressing unit (24) to move in a vertical direction is arranged above the pressing unit (24); the traction unit (27) comprises a rotating shaft (271) penetrating along the axis of the sludge shell (21) and arranged on the first filter screen (22); the rotating shaft (271) and rotatably engages with the first filter screen (22); a traction ring (272) is arranged on the periphery of the upper portion of the rotating shaft (271); the traction ring (272) is fixedly connected to the rotating shaft (271); a traction groove (2721) is arranged on the traction ring (272); the pressing unit (24) extends into the traction groove (2721) and slidably engages with the traction groove (2721).

5. The industrial refractory organic wastewater recycling treatment equipment according to claim 4 is characterized in that: The pressing unit (24) further comprises a fixing plate (245) fixedly arranged horizontally on the inner wall of the sludge shell (21); a pressing plate (242) is arranged below the fixing plate (245) so as to be movable in the vertical direction; a second filter screen (241) is arranged at the lower part of the pressing plate (242); a sliding rod (243) is vertically arranged at the upper part of the pressing plate (242) so as to be raised and lowered synchronously with the pressing plate (242); a traction block (244) is fixedly arranged at the top of the sliding rod (243); and the traction block (244) extends into the traction groove (2721).

6. The industrial refractory organic wastewater recycling treatment equipment according to claim 5 is characterized in that: A sliding sleeve (246) is vertically fixedly arranged on the upper part of the pressing plate (242), and the sliding rod (243) extends into the sliding sleeve (246) and slides with the sliding sleeve (246). There is a gap between the sliding rod (243) and the bottom of the sliding sleeve (246), and a spring (247) is vertically arranged in the gap. The two ends of the spring (247) are respectively fixedly connected to the end of the sliding rod (243) and the bottom of the sliding sleeve (246), and a pressure sensor is arranged at the connection between the sliding rod (243) and the spring (247).

7. The industrial refractory organic wastewater recycling treatment equipment according to claim 1 is characterized in that: A cleaning unit (28) is arranged below the first filter screen (22), the cleaning unit (28) comprising an inflatable shell (281) rotatably arranged below the first filter screen (22), a rotating plate (283) rotatably arranged inside the inflatable shell (281), the rotating plate (283) and the inflatable shell (281) forming an inflatable cavity, an air outlet shell (282) is arranged on one side of the inflatable shell (281), the air outlet shell (282) is communicated with the inflatable cavity, an air pump (284) is arranged below the rotating plate (283), the air pump (284) is communicated with the inflatable cavity, and an air outlet is opened at the top of the air outlet shell (282).

8. The industrial refractory organic wastewater recycling treatment equipment according to claim 2 is characterized in that: A receiving box (212) is arranged at the lower part of the discharge trough (233), an extension pipe (213) is vertically arranged between the receiving box (212) and the discharge trough (233), a fan (214) is arranged at the upper part of the receiving box (212) on one side of the extension pipe (213), and a ventilation groove (215) is opened at the bottom of the sludge shell (21) directly above the discharge trough (233). When the sludge unit (2) is in a cleaning mode, the fan (214) is started, and outside air passes through the ventilation groove (215) from top to bottom in sequence through the sludge trough (211), the receiving trough (231), the discharge trough (233) and the extension pipe (213).

9. The industrial refractory organic wastewater recycling treatment equipment according to claim 1, characterized in that: A plurality of magnetic blocks (234) are arranged on the inner ring side wall of the receiving ring (23), and the magnetic blocks (234) are evenly arranged around the axis of the receiving ring (23). A plurality of electromagnets (235) are also arranged in the inner ring of the receiving ring (23) around the axis of the receiving ring (23), and the electromagnets (235) are fixedly arranged on the sludge shell (21), and the electromagnets (235) are energized in sequence.

10. The industrial refractory organic wastewater recycling treatment equipment according to claim 9, characterized in that: A plurality of snap-fit ​​grooves are evenly arranged on the outer circumferential wall of the receiving ring (23) around the axis of the receiving ring (23), and a plurality of electric push rods (236) are horizontally arranged on the sludge shell (21). After the sludge unit (2) completes mode switching, the output ends of the electric push rods (236) extend out and snap-fit ​​with the snap-fit ​​grooves.

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