A device for recycling tannery sulfur-containing wastewater and a method of use

Abstract

The present application relates to the technical fields of sulfur-containing wastewater recycling, and more particularly to a device for recycling tannery sulfur-containing wastewater and a use method thereof, comprising a treatment bin, which is internally provided with a rough treatment mechanism and a fine treatment mechanism, the rough treatment mechanism is internally provided with a cleaning mechanism, the treatment bin comprises a water storage bucket arranged on the outer wall of a filter barrel, and the outer wall of the water storage bucket is provided with a control unit; the device has high cleaning efficiency for wastewater, good cleaning effect, simple and efficient operation, strong adaptability, good stability, and can meet different working conditions and wastewater conditions, and can simultaneously achieve rough treatment and fine treatment of wastewater and fine treatment means; meanwhile, the up-down movement of the filter plate can also achieve the unblocking of the filter barrel inner wall screen hole and the adjustment of the extrusion force of the scraping plate on the bending plate, so as to meet the scraping and unblocking effect of different impurities, and the cooperation between structures is better; especially, the up-down movement of the filter plate can also achieve the discharge of the medicament.

Description

Technical Field

[0001] The present invention relates to the technical field of sulfur-containing wastewater reuse, and more particularly to a device for reusing sulfur-containing wastewater from leather making and a method for using the device. Background Art

[0002] Sulfur-containing wastewater is a common type of wastewater in industrial production. Sulfide-containing wastewater is not only highly toxic but also highly corrosive. Sulfur in wastewater can exist in various forms, with hydrogen sulfide being the most harmful. High-sulfide wastewater can corrode metals, which is unavoidable for both pipes and equipment, resulting in significant economic losses. When metal ions and sulfur ions in the wastewater react, a precipitate containing sulfide is produced. This precipitate can be separated to the greatest extent possible, achieving optimal desulfurization.

[0003] Chinese invention patent 2021106233611 discloses a nanofiltration device for sulfur-containing wastewater and a method for using the same, comprising a cylindrical shell, a bracket fixedly connected to the bottom end of the outer surface of the cylindrical shell, arc-shaped slots and T-shaped slides on the front and back sides of the cylindrical shell, a fixed block fixedly connected to the upper end of the cylindrical shell, and a filtering mechanism movably arranged inside the cylindrical shell; the sulfur-containing wastewater recovery and treatment device has low treatment efficiency and poor treatment effect.

[0004] Chinese invention patent 2020116420770 discloses a biochemical treatment system and method for sulfur-containing printing and dyeing wastewater, including an aerobic tank, an intermediate sedimentation tank and an anaerobic tank connected in sequence. The aerobic tank is an open container structure with an aeration channel provided in the middle thereof, an aerator provided at the bottom of the aeration channel, and an aerobic tank water distribution pipe laid at the bottom of the aerobic tank; the inner wall cannot be cleaned during the treatment of the sulfur-containing wastewater, thereby causing pollution of the treatment device.

[0005] However, flocs are easily generated in the sulfur-containing wastewater generated during the leather making process. When the sulfur-containing wastewater is desulfurized by precipitation, the flocs cannot be removed. Moreover, when the desulfurized water is filtered to remove the precipitate for recycling, the flocs are very likely to clog the filter components, thereby affecting the circulation, recovery and filtration effect of the desulfurized wastewater, making it inconvenient for practical use.

[0006] In actual use, if thick flocculent impurities are attached to the inside of the bent plate, the internal scraper alone cannot effectively scrape them off, which will not only reduce the cleanliness of the bent plate, but also affect the subsequent treatment of sulfur-containing wastewater.

[0007] Moreover, when the filter barrel is blocked by some flocculent impurities, the existing scraper cannot clear the blockage in that part, thereby reducing the drainage efficiency of the filter barrel. In particular, when a large amount of flocculent impurities adhere to the inner wall of the scraper, the existing devices lack the function of cleaning them, which will affect the subsequent cleaning of sulfur-containing wastewater. Summary of the Invention

[0008] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a tanning sulfur-containing wastewater recycling device and a method for using the same to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for recycling sulfur-containing wastewater from leather making, comprising a treatment chamber, wherein a rough treatment mechanism and a fine treatment mechanism are respectively provided inside the treatment chamber, wherein a cleaning mechanism is provided inside the rough treatment mechanism, wherein the treatment chamber comprises a water storage barrel provided on the outer wall of a filter barrel, wherein the outer wall of the water storage barrel is provided with a control unit,

[0010] The coarse treatment mechanism includes a filter barrel, the top of the filter barrel is provided with an upper cover with threads, a rotating rod is provided inside the upper cover for rotation, one end of the rotating rod is provided with an elastic connecting plate, the other end of the elastic connecting plate is provided with a bent plate, and the inner wall of the bent plate is provided with a distance sensor;

[0011] The fine processing mechanism includes a motor, an output rod is provided at the end of the output shaft of the motor, a threaded screw is provided at the bottom of the output rod, an electromagnetic ring is engaged with the outer wall of the threaded screw, a filter plate is provided on the outer wall of the electromagnetic ring, a plurality of filter holes are provided in a circular array inside the filter plate, a plurality of side grooves are provided inside the filter plate and on a side close to the electromagnetic ring, a magnetic plug plate is slidably provided inside the side groove, and a plurality of docking holes are provided inside the magnetic plug plate;

[0012] The cleaning mechanism includes a cleaning rod rotatably mounted on the top of the bending plate, an outer wall of the cleaning rod is provided with an arc-shaped brush plate, a rotating screw is provided at the bottom of the arc-shaped brush plate, and a scraper is engaged with the outer wall of the rotating screw.

[0013] This application not only realizes the rough treatment of wastewater, but also realizes the fine treatment of wastewater, with high treatment efficiency and good treatment effect. At the same time, when thick impurities adhere to the inner wall of the bent plate, it can also increase the scraping force on its inner wall, thereby improving the scraping effect.

[0014] In a preferred embodiment, the electromagnetic ring and the end faces facing the magnetic plug-in plate have the same magnetic properties, the side wall of the side groove is provided with a connecting spring, the other end of the connecting spring is fixedly connected to the side wall of the magnetic plug-in plate, the distance sensor is used to detect the distance value between the bending plate and the rotating rod, and the control unit electrically controls each electrical component.

[0015] In a preferred implementation form, the side slots are all arranged around the electromagnetic ring circumferential array, and the side slots are all in communication with the filter holes on the same radius inside the filter plate, the position of the magnetic plug-in plate matches the position of the filter holes on the same radius inside the filter plate, and the butt joint holes all match the filter holes.

[0016] In a preferred implementation form, the top of the water storage bucket is covered with a top cover, the motor is fixedly connected to the top of the top cover, the outer wall of the water storage bucket is respectively and communicatively provided with a water inlet pipe and a water outlet pipe, the outer wall of the filter barrel is provided with a link type cover plate fixedly connected to the inner wall of the water storage bucket, and the inner part of the filter barrel and the link type cover plate are both provided with a through slot in communication with the water inlet pipe.

[0017] In a preferred implementation form, the filter barrel is located on one side of the inner wall of the water storage bucket, a limiting slot is arranged on the inner wall of the filter barrel, a limiting block fixedly connected with the scraper is slidably arranged in the inner cavity of the limiting slot, the height of the limiting block is greater than the height of the scraper, the number of the arc-shaped brush plates, the rotating lead screws and the scrapers is multiple, and the arc-shaped brush plates, the rotating lead screws and the scrapers are arranged in a cross state in sequence.

[0018] In a preferred implementation form, the outer wall of the rotating rod is provided with a transfer gear, the top of the bending plate is rotatably provided with a linkage gear, the outer walls of the transfer gear and the linkage gear are all engaged with a linkage synchronous belt, the top of the linkage gear is provided with a matching gear, the outer wall of the matching gear is engaged with an engagement gear fixedly connected with the cleaning rod, the top of the engagement gear is provided with a link type rotating block, and the link type rotating block is slidably installed at the bottom of the upper cover.

[0019] In a preferred implementation form, the two sides of the bending plate are both provided with a scraping strip abutting against the inner wall of the filter barrel, the outer wall of the rotating rod is provided with a driven gear, the outer wall of the output rod is provided with a driving gear, and the outer walls of the driven gear and the driving gear are all engaged with a driving synchronous belt.

[0020] In a preferred implementation form, the bottom of the threaded lead screw is provided with a matching rod, the bottom of the matching rod is rotatably connected with the bottom of the water storage bucket through a bearing, the outer wall of the matching rod is sealingly provided with a liquid storage bin, the top of the liquid storage bin is threadedly provided with a circular-arc-shaped elastic cover plate slidably connected with the matching rod, the outer wall of the liquid storage bin is communicatively provided with a plurality of spray pipes, and the outer wall of the matching rod and below the circular-arc-shaped elastic cover plate is provided with a limiting sleeve.

[0021] In a preferred embodiment, a sealing block is inserted into the top outlet end of each of the nozzles, a connecting ring is provided on the inner wall of each of the nozzles, and a telescopic spring is provided between the connecting ring and the sealing block. The sealing block is in the shape of an inverted truncated cone, and the diameter of the sealing block gradually increases from the bottom to the top. The interior of the liquid storage tank is connected to a liquid inlet pipe through a one-way valve, and the other end of the liquid inlet pipe passes through the water storage barrel and is connected to the medicine tank. The flow direction of the one-way valve is one-way flow along the medicine tank to the liquid storage tank.

[0022] A method for using a tanning sulfur-containing wastewater recycling device, wherein the method utilizes the tanning sulfur-containing wastewater recycling device to recycle the tanning sulfur-containing wastewater. The specific operating steps are as follows:

[0023] In the first step, the filter barrel performs preliminary filtration on the wastewater;

[0024] In the second step, the motor is synchronously started to rotate the output rod and the rotating rod synchronously, and the rotation of the rotating rod drives the bending plate to scrape the inner wall of the filter barrel;

[0025] In the third step, the overall rotation of the cleaning rod allows the longer flocs to be rolled up and collected by the arc-shaped brush plate, and the flocs adhering to the filter barrel are scraped off by the scraper;

[0026] In the fourth step, when the distance value detected by the distance sensor increases, the control unit controls the current of the electromagnetic ring to increase, and uses the magnetic repulsion force of the electromagnetic ring on the side of the magnetic plug plate to drive the magnetic plug plate to move away from the end of the electromagnetic ring. The magnetic plug plate drives the docking hole to move and the interlaced area with the filter hole increases. When the filter plate moves downward, the wastewater pressure inside the water storage barrel increases, and the force exerted by the wastewater on the outer wall of the bending plate increases. The bending plate squeezes the elastic connecting plate and the extrusion force of the scraper increases.

[0027] By further limiting the reuse method, the treatment effect and efficiency of wastewater can be improved.

[0028] Technical effects and advantages of the present invention:

[0029] 1. The present invention provides a filter barrel and a filter plate in the inner cavity of the water storage barrel to perform dual removal of flocs and obvious impurities in the waste water entering the water storage barrel, and provides a bent plate and an arc-shaped brush plate that can rotate in opposite directions inside the filter barrel, and a scraper that moves up and down on the outer wall of the rotating screw as the arc-shaped brush plate rotates, so that the flocs are shoveled into the inside of the bent plate while the longer flocs can be rolled up and collected together by the arc-shaped brush plate, and in the process of the arc-shaped brush plate synchronously driving the rotating screw to rotate, the scraper moves up and down in a straight line on the inner wall of the bent plate, on the one hand, the scraper scrapes the flocs on the inner wall of the bent plate, and on the other hand, when the scraper moves up and down, the waste water and flocs entering the inner cavity of the filter barrel are always kept in an active state, thereby preventing the flocs from sinking to the bottom and affecting the circulation and use of the bottom of the filter barrel.

[0030] 2. In the present invention, when the output rod rotates as a whole, the filter plate moves downward to squeeze the arc-shaped elastic cover plate, so that the reagent in the inner cavity of the liquid storage tank is synchronously squeezed into the inner cavity of the water storage barrel through multiple nozzles, so that multiple positions inside the wastewater can synchronously mix and react with the reagent, thereby accelerating the formation of precipitates by sulfur substances in the wastewater. After the precipitate is formed, it is isolated by the filter plate, so that the precipitate cannot rise to the top of the water storage barrel, and then the desulfurized wastewater can be discharged more conveniently and quickly through the outlet pipe.

[0031] 3. The present invention sets an electromagnetic ring and a bending plate, and the device has high cleaning efficiency and good cleaning effect for wastewater, simple and efficient operation, strong adaptability, good stability, and meets different working conditions and wastewater conditions, while realizing rough treatment and fine treatment of wastewater, and the treatment means are sophisticated; at the same time, the up and down movement of the filter plate can also realize the clearing of the sieve holes on the inner wall of the filter barrel, and realize the adjustment of the extrusion force of the scraper on the bending plate, thereby meeting the scraping and clearing effect of different impurities, with stronger versatility and better coordination between structures; in particular, the up and down movement of the filter plate can also realize the discharge of medicines, and the impact clearing of the filter barrel can be realized with the help of medicines, which is green, environmentally friendly, stable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0034] Figure 3 It is a partial structural cross-sectional view of the present invention.

[0035] Figure 4 For the present invention Figure 3 A magnified view of the structure of part A.

[0036] Figure 5 A part structure of the present application. Figure 3 A part structure of the present application.

[0037] Figure 6 A part structure of the present application.

[0038] Figure 7 A part structure of the present application. Figure 6 A part structure of the present application.

[0039] Figure 8 A part structure of the present application.

[0040] Figure 9 A part structure of the present application.

[0041] The figure marks are: 1, treatment bin; 101, water storage bucket; 102, water inlet pipe; 103, water outlet pipe; 104, top cover; 2, rough treatment mechanism; 21, filter barrel; 22, link type cover plate; 23, through slot; 24, upper cover; 25, rotating rod; 26, bending plate; 27, scraping strip; 28, driven gear; 29, driving synchronous belt; 210, elastic connecting plate; 3, fine treatment mechanism; 31, motor; 32, output rod; 33, threaded screw rod; 34, matching rod; 35, liquid storage bin; 36, circular arc elastic cover plate; 37, spray pipe; 38, filter plate; 39, limiting sleeve; 310, sealing block; 311, link ring; 312, extension spring; 313, driving gear; 314, electromagnetic ring; 315, filter hole; 316, side slot; 317, connecting spring; 318, magnetic plugboard; 319, butt joint hole; 4, cleaning mechanism; 41, cleaning rod; 42, arc brush plate; 43, rotating screw rod; 44, scraper; 45, limiting slot; 46, limiting block; 47, transfer gear; 48, linkage gear; 49, linkage synchronous belt; 410, matching gear; 411, meshing gear; 412, link type rotating block. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0043] First embodiment

[0044] Refer to the drawings in the description Figure 1-8The present invention provides a device for recycling sulfur-containing wastewater from leather making, comprising a treatment chamber 1, wherein a rough treatment mechanism 2 and a fine treatment mechanism 3 are respectively provided inside the treatment chamber 1, and a cleaning mechanism 4 is provided inside the rough treatment mechanism 2. The rough treatment mechanism 2 performs rough treatment on the wastewater, mainly removing flocs in the wastewater, and the fine treatment mechanism 3 performs fine treatment on the wastewater, neutralizing the wastewater with the help of chemical agents, and the cleaning mechanism 4 mainly scrapes and cleans impurities attached to the inside of the rough treatment mechanism 2.

[0045] The coarse treatment mechanism 2 includes a filter barrel 21, the outer wall of the filter barrel 21 is evenly provided with a plurality of groups of sieve holes, the top thread of the filter barrel 21 is provided with an upper cover 24, the inner rotation of the upper cover 24 is provided with a rotating rod 25, one end of the rotating rod 25 is provided with an elastic connecting plate 210, the other end of the elastic connecting plate 210 is provided with a bent plate 26, and both sides of the bent plate 26 are provided with scraping strips 27 that fit the inner wall of the filter barrel 21. In actual use, when the rotating rod 25 is rotated, the elastic connecting plate 210 and the bent plate 26 can be synchronously driven to scrape the inner wall of the filter barrel 21 through the scraping strips 27 provided on one side thereof, so as to scrape off the flocs adhering to the inner wall of the filter barrel 21 and avoid it The filter barrel 21 is blocked. At the same time, in order to avoid excessive adhesion of flocs to the bent plate 26 and the scraper 27, which affects the scraping work of the bent plate 26 and the scraper 27, the cleaning mechanism 4 includes a cleaning rod 41 rotatably mounted on the top of the bent plate 26. The outer wall of the cleaning rod 41 is provided with an arc-shaped brush plate 42 for wrapping around longer flocs. The bottom of the arc-shaped brush plate 42 is provided with a rotating screw 43. The outer wall of the rotating screw 43 is engaged with a scraper 44 for scraping small pieces of flocs adhering to the inner wall of the bent plate 26 up and down. The arc-shaped brush plate 42 and the scraper 44 cooperate to classify and clean the flocs scraped off from the inner wall of the filter barrel 21 by the bending plate 26, so that the cleaning is cleaner.

[0046] The treatment chamber 1 includes a water storage barrel 101 arranged on the outer wall of the filter barrel 21. The outer wall of the water storage barrel 101 is provided with a control unit, which electrically controls various electrical components. The top cover of the water storage barrel 101 is closed with a top cover 104, and the motor 31 is fixedly connected to the top of the top cover 104. The outer walls of the water storage barrel 101 are respectively connected with a water inlet pipe 102 and a water outlet pipe 103. The outer wall of the filter barrel 21 is provided with a connecting cover plate 22 fixedly connected to the inner wall of the water storage barrel 101. The interior of the filter barrel 21 and the connecting cover plate 22 are both provided with a through groove 23 connected to the water inlet pipe 102. This arrangement allows the wastewater entering the inner cavity of the water storage barrel 101 through the water inlet pipe 102 to preferentially enter the inner cavity of the filter barrel 21 through the through groove 23, and then enter the inner cavity of the water storage barrel 101 after filtering out the flocs through the filter barrel 21, so as to realize the simultaneous removal of flocs in the wastewater during the process of inputting wastewater, so as to facilitate the subsequent desulfurization work.

[0047] The filter barrel 21 is located on one side of the inner wall of the water storage barrel 101. A limit groove 45 is provided on the inner wall of the filter barrel 21. The inner cavity of the limit groove 45 is slidingly provided with a limit block 46 fixedly connected to the scraper 44. This arrangement enables the cleaning rod 41 to drive the rotating screw 43 to rotate synchronously as a whole, and the scraper 44 can only move up and down reciprocatingly on its outer wall, so that the flocs on the inner wall of the bending plate 26 can be completely scraped off. At the same time, the number of arc-shaped brush plates 42, rotating screw rods 43 and scrapers 44 is set to multiple, and the arc-shaped brush plates 42, rotating screw rods 43 and scrapers 44 are arranged in a cross state in sequence. This arrangement enables layered synchronous processing to be achieved when filtering and cleaning the flocs in the inner cavity of the filter barrel 21, thereby enhancing the processing effect and efficiency of the flocs in the inner cavity of the filter barrel 21.

[0048] The outer wall of the rotating rod 25 is provided with a transfer gear 47, and the top of the bending plate 26 is provided with a linkage gear 48. The outer walls of the transfer gear 47 and the linkage gear 48 are meshed with a linkage timing belt 49. The top of the linkage gear 48 is provided with a matching gear 410. The outer wall of the matching gear 410 is meshed with a meshing gear 411 fixedly connected to the cleaning rod 41. This arrangement makes the overall rotation of the rotating rod 25 and the overall rotation direction of the cleaning rod 41 opposite to each other. Then, when the bending plate 26 is rotated clockwise around the inner wall of the filter barrel 21, the cleaning rod 41 drives the arc-shaped brush plate 42 to rotate synchronously in the opposite direction on the inner wall of the bending plate 26, so that the arc-shaped brush plate 42 is rotated in the opposite direction. 2 and the bent plate 26 form a mutual reverse force inside the filter barrel 21, so that the flocs are shoveled into the inside of the bent plate 26, and the longer flocs can be rolled up and collected by the arc-shaped brush plate 42. In the process of the arc-shaped brush plate 42 synchronously driving the rotating screw 43 to rotate, the scraper 44 moves up and down on the inner wall of the bent plate 26 in a straight line. On the one hand, the scraper 44 scrapes the flocs on the inner wall of the bent plate 26. On the other hand, when the scraper 44 moves up and down, the wastewater and flocs entering the inner cavity of the filter barrel 21 are always kept in a mobile state, thereby preventing the flocs from sinking to the bottom and affecting the circulation and use of the bottom of the filter barrel 21.

[0049] At the same time, a connecting turn block 412 is provided on the top of the meshing gear 411, and the connecting turn block 412 is slidably installed on the bottom of the upper cover 24. This arrangement allows the rotating rod 25 to rotate and drive the bending plate 26 as a whole to rotate around the inner wall of the filter barrel 21. The connecting turn block 412 can synchronously drive the cleaning rod 41 as a whole to move synchronously without affecting the mutual meshing drive work of the meshing gear 411 and the matching gear 410.

[0050] The fine processing mechanism 3 includes a motor 31 fixedly mounted on the top of the top cover 104, an output rod 32 is provided at the end of the output shaft of the motor 31, a threaded screw 33 is provided at the bottom of the output rod 32, an electromagnetic ring 314 is engaged with the outer wall of the threaded screw 33, a filter plate 38 is provided on the outer wall of the electromagnetic ring 314, and a plurality of groups of filter holes 315 are provided in the inner circumferential array of the filter plate 38, and the filter plate 38 is slidably mounted on the outer wall of the filter barrel 21. In this way, when the output rod 32 and the threaded screw 33 are rotated as a whole, the filter plate 38 moves up and down on the outer wall of the threaded screw 33 and slides up and down on the outer wall of the filter barrel 21 synchronously. On the one hand, the wastewater filtered out of the filter barrel 21 into the inner cavity of the water storage barrel 101 is filtered again through the filter holes 315. On the other hand, the impurities adhered to the outer wall of the filter barrel 21 are scraped off when the filter plate 38 moves up and down.

[0051] At the same time, a driven gear 28 is provided on the outer wall of the rotating rod 25, and a driving gear 313 is provided on the outer wall of the output rod 32. The outer walls of the driven gear 28 and the driving gear 313 are meshed with a driving synchronous belt 29. This arrangement enables the output rod 32 as a whole and the rotating rod 25 as a whole to rotate synchronously, thereby realizing double-layer filtration of the wastewater input into the inner cavity of the water storage barrel 101, giving priority to removing obvious impurities in the wastewater, and making it easier to carry out subsequent work.

[0052] The bottom of the threaded screw 33 is provided with a matching rod 34, and the bottom of the matching rod 34 is rotatably connected to the bottom of the water storage barrel 101 through a bearing. The outer wall of the matching rod 34 is provided with a liquid storage bin 35, and the top thread of the liquid storage bin 35 is provided with an arc-shaped elastic cover plate 36 that is slidably connected to the matching rod 34. The outer wall of the liquid storage bin 35 is connected with a plurality of nozzles 37, and the outer wall of the matching rod 34 is provided with a limiting sleeve 39 below the arc-shaped elastic cover plate 36. Under normal circumstances, the inner cavity of the liquid storage bin 35 is filled with ferrous sulfate, and the arc-shaped elastic cover plate 36 and the liquid storage bin 35 are connected. The filter plate 38 is in a sealed expansion state. When the filter plate 38 moves downward to squeeze the arc-shaped elastic cover plate 36, the reagent in the inner cavity of the liquid storage tank 35 can be synchronously squeezed into the inner cavity of the water storage barrel 101 through multiple nozzles 37, so that multiple positions inside the wastewater can synchronously mix and react with the reagent, thereby accelerating the formation of precipitates by sulfur substances in the wastewater. After the precipitate is formed, it is isolated by the filter plate 38, so that the precipitate cannot rise to the top of the water storage barrel 101, and then the desulfurized wastewater is discharged through the outlet pipe 103 more conveniently and quickly.

[0053] Among them, the tops of multiple nozzles 37 are plugged with sealing blocks 310, the inner walls of multiple nozzles 37 are provided with connecting rings 311, and a telescopic spring 312 is provided between the connecting ring 311 and the sealing block 310. The shape of the sealing block 310 is an inverted truncated cone, and the diameter of the sealing block 310 gradually increases from the bottom to the top. Under normal circumstances, the telescopic spring 312 is in a contracted state to pull and seal the sealing block 310 at the top of the nozzle 37. When the arc-shaped elastic cover 36 is squeezed, the impact force of the agent flowing outward through the nozzle 37 causes the sealing block 310 to lift upward, and then expand the telescopic spring 312, so as to avoid the agent being stored in a closed state in the inner cavity of the liquid storage tank 35 when the agent is not needed, and to avoid the problem of long-term mixing with wastewater, which leads to a decrease in the effect of the agent in the inner cavity of the liquid storage tank 35 and affects actual use.

[0054] The interior of the liquid storage bin 35 is connected to a liquid inlet pipe through a one-way valve, and the other end of the liquid inlet pipe passes through the water storage barrel 101 and is connected to the medicine bin. The flow direction of the one-way valve is one-way flow along the medicine bin to the liquid storage bin 35. Therefore, when the filter plate 38 moves upward, the extrusion force exerted by the filter plate 38 on the top of the arc-shaped elastic cover plate 36 is reduced, and the arc-shaped elastic cover plate 36 expands upward under the elastic force of itself. Then the internal volume of the liquid storage bin 35 increases, the air pressure decreases and negative pressure is formed. With the help of the negative pressure inside the liquid storage bin 35, the medicine inside the medicine bin is drawn into the liquid storage bin 35 along the liquid inlet pipe and the one-way valve for rehydration, thereby ensuring the subsequent effect of removing impurities from the wastewater medicine.

[0055] First, the water inlet pipe 102 is connected to the wastewater generated during the leather making process. The wastewater first enters the inner cavity of the filter barrel 21 through the water inlet pipe 102 for preliminary filtration. The wastewater then enters the inner cavity of the connecting cover plate 22 through the filter barrel 21 and is filtered again through the filter plate 38.

[0056] The motor 31 is started synchronously, so that the output rod 32 and the rotating rod 25 rotate synchronously as a whole. When the rotating rod 25 rotates, it can synchronously drive the bending plate 26 to scrape the inner wall of the filter barrel 21 through the scraper 27 set on one side thereof, scraping off the flocs adhering to the inner wall of the filter barrel 21 and maintaining the normal circulation of water inside the filter barrel 21.

[0057] While the rotating rod 25 rotates, the overall rotation direction of the cleaning rod 41 is opposite to the rotation direction of the rotating rod 25 and the bending plate 26, so that the longer flocs can be rolled up and collected together by the arc-shaped brush plate 42, and the flocs adhering to the filter barrel 21 are scraped off by the scraper 44, thereby uniformly collecting and processing the floc impurities inside the filter barrel 21.

[0058] When the wastewater without flocs enters the inner cavity of the water storage barrel 101 through the filter barrel 21, the rotating output rod 32 drives the threaded screw 33 to rotate as a whole, so that the filter plate 38 moves downward to squeeze the arc-shaped elastic cover plate 36, and the medicine in the inner cavity of the liquid storage tank 35 can be synchronously squeezed into the inner cavity of the water storage barrel 101 through multiple nozzles 37, so that multiple positions inside the wastewater can synchronously mix and react with the medicine, thereby accelerating the formation of sediment by sulfur substances in the wastewater, and finally the desulfurized wastewater can be pumped out through the outlet pipe 103.

[0059] Second embodiment

[0060] Refer to the instruction manual Figure 9 In actual use, when thick flocculent impurities are attached to the inner wall of the bent plate 26, the scraper 44 and the inner wall of the bent plate 26 are squeezed and contacted with each other and cannot scrape off the impurities, thereby reducing the cleanliness of the bent plate 26 and affecting the subsequent wastewater treatment; and when the sieve holes of the filter barrel 21 are partially blocked by flocculent impurities, the sieve holes cannot be cleared by scraping only by the filter plate 38 and the scraper bar 27, thereby reducing the filtration and drainage efficiency of the filter barrel 21; at the same time, when a large amount of flocculent impurities are attached to the outer surfaces of the scraper 44 and the curved brush plate 42, not only will the cleaning effect of the scraper 44 and the curved brush plate 42 on the inner wall of the bent plate 26 be reduced, but the subsequent wastewater treatment efficiency will also be reduced.

[0061] In order to solve the above problems, the leather-making sulfur-containing wastewater recycling device also includes: the height of the limit block 46 is greater than the height value of the scraper 44, so when the scraper 44 drives the limit block 46 to move further, the limit block 46 is plugged into the end of the arc-shaped brush plate 42, and the rotation of the arc-shaped brush plate 42 is used to achieve collision with the limit block 46, thereby driving the scraper 44 and the arc-shaped brush plate 42 to vibrate synchronously, effectively achieving the vibration cleaning effect of the flocculent impurities attached to the outer surface of the scraper 44 and the arc-shaped brush plate 42.

[0062] The inner wall of the bending plate 26 is provided with a plurality of distance sensors, which are used to detect the distance value between the bending plate 26 and the rotating rod 25. Therefore, when thick flocculent impurities adhere to the inner wall of the bending plate 26, the flocculent impurities cannot be scraped off by the up and down movement of the scraper 44 alone. With the blocking effect of the flocculent impurities, the bending plate 26 is driven to stretch the elastic connecting plate 210 to move away from the rotating rod 25, and the distance value detected by the distance sensor increases.

[0063] A plurality of side grooves 316 are provided inside the filter plate 38 and on one side close to the electromagnetic ring 314. A magnetic plug-in plate 318 is slidably provided inside the side grooves 316. The facing end surfaces of the electromagnetic ring 314 and the magnetic plug-in plate 318 have the same magnetic properties. When the electromagnetic ring 314 is energized and becomes magnetic, the magnetic plug-in plate 318 is driven to move along the side grooves 316 toward the end away from the electromagnetic ring 314 by the magnetic repulsion between the electromagnetic ring 314 and the magnetic plug-in plate 318. A plurality of docking holes 319 are provided inside the magnetic plug-in plate 318. The docking holes 319 are all matched with the filter holes 315. At this time, the interlaced area of ​​the docking holes 319 and the filter holes 315 increases, and the relative open area of ​​the filter holes 315 decreases. When the filter plate 38 moves up and down, the pressure applied by the filter plate 38 to the wastewater inside the water storage tank 101 increases.

[0064] The side wall of the side groove 316 is provided with a connecting spring 317, the other end of the connecting spring 317 is fixedly connected to the side wall of the magnetic plug plate 318, and the setting of the connecting spring 317 improves the elastic reset performance of the magnetic plug plate 318. The side grooves 316 are all opened in a circular array around the electromagnetic ring 314. The side grooves 316 are all interconnected with the filter holes 315 on the same radius inside the filter plate 38. The position of the magnetic plug plate 318 matches the position of the filter holes 315 on the same radius inside the filter plate 38. This setting ensures that when the magnetic plug plates 318 at each position move along the side groove 316, the magnetic plug plates 318 drive the docking holes 319 to move and realize the change of the overlapping area with the filter holes 315, thereby changing the change of the water pressure inside the water storage barrel 101 when the filter plate 38 moves up and down. With the help of this water pressure, the water pressure value applied to the outer wall of the bent plate 26 is correspondingly changed, thereby effectively improving the cleaning effect of the bent plate 26 and the sieve holes inside the filter barrel 21.

[0065] When in use, first discharge the waste water into the filter barrel 21 along the water inlet pipe 102. At this time, the control unit controls the motor 31 to start, and the motor 31 drives the driving gear 313 to rotate. The driving gear 313 drives the driven gear 28 to rotate through the driving synchronous belt 29, and the driven gear 28 drives the transfer gear 47 to rotate. The transfer gear 47 drives the bending plate 26 to rotate through the elastic connecting plate 210. When the bending plate 26 rotates, the scraper 27 is used to rotate and scrape the inner wall of the filter barrel 21, thereby effectively improving the clearing effect of the inner wall of the filter barrel 21. Moreover, when the transfer gear 47 rotates, the linkage gear 48 is driven to rotate through the linkage synchronous belt 49. The linkage gear 48 drives the matching gear 410 to rotate, the matching gear 410 drives the meshing gear 411 to rotate, the matching gear drives the cleaning rod 41 and the rotating screw 43 to rotate, the cleaning rod 41 rotates to drive the arc-shaped brush plate 42 to rotate and scrape the inner wall of the bending plate 26, and the rotating screw 43 rotates to drive the scraper 44 to move up and down through the thread cooperation with the scraper 44, thereby effectively realizing the scraper 44 scraping the inner wall of the bending plate 26 up and down, improving the scraping efficiency, and when the bending plate 26 is scraped stably, the distance values ​​detected by the distance sensor are all stable values, and the rough processing mechanism 2 and the cleaning mechanism 4 cooperate with each other to ensure stable cleaning.

[0066] At the same time, the rotation of the motor 31 drives the output rod 32 to rotate, and the output rod 32 rotates the screw thread 33 to rotate. The screw thread 33 drives the electromagnetic ring 314 to move up and down through the thread cooperation with the electromagnetic ring 314. When the electromagnetic ring 314 moves up and down, it simultaneously drives the filter plate 38 to move up and down. At the same time, when the filter plate 38 moves up and down, it passes the waste water inside the water storage barrel 101 through the filter hole 315, thereby achieving the filtration of the waste water and the discharge of the waste water at the same time, thereby improving the filtration and removal effect of impurities in the waste water. When the filter plate 38 moves downward, the filter plate 38 applies an extruding force to the waste water inside the water storage barrel 101, and the waste water inside the water storage barrel 101 is squeezed under the pressure. As the inward force applied to the outer wall of the filter barrel 21 increases, the force is used to improve the clearing and screening effect of the sieve holes on the outer wall of the filter barrel 21, and as the bending plate 26 rotates, the bending plate 26 will block part of the sieve holes inside the filter barrel 21. When the wastewater inside the water storage barrel 101 flows to the end of the filter barrel 21 under the squeezing action of the filter plate 38, due to the blockage of part of the sieve holes by the bending plate 26, the reverse force applied by the wastewater on the bending plate 26 causes the bending plate 26 to squeeze the elastic connecting plate 210 to move closer to the end of the scraper 44. The scraper 44 has an actual elastic scraping effect on the bending plate 26, thereby effectively improving the scraping effect of the scraper 44 on impurities on the inner wall of the bending plate 26.

[0067] As the filter plate 38 continues to move downward, the force exerted by the filter plate 38 on the top of the arc-shaped elastic cover plate 36 increases. When the arc-shaped elastic cover plate 36 is subjected to the squeezing force, it elastically deforms inward, the internal volume of the liquid storage tank 35 decreases, and the pressure increases. Then, the medicine inside the liquid storage tank 35 is sprayed out along the nozzle 37, and the chemical impurity removal effect of the wastewater inside the water storage barrel 101 is achieved.

[0068] When the filter plate 38 moves upward, the squeezing force exerted by the filter plate 38 on the top of the arc-shaped elastic cover plate 36 is reduced, and the arc-shaped elastic cover plate 36 expands upward under the elastic force of the latter itself, so that the volume of the liquid storage tank 35 increases and the pressure decreases. With the help of the negative pressure, the medicine inside the external medicine tank is reversely drawn into the liquid storage tank 35 for temporary storage, thereby improving the subsequent chemical impurity removal efficiency of the wastewater inside the water storage barrel 101, and as the medicine is discharged, the nozzle 37 is facing the sieve holes on the inner wall of the filter barrel 21, so the medicine can also exert water flow impact force on the sieve holes, thereby not only achieving impact and clearing of the sieve holes, but also chemically treating the wastewater inside the filter barrel 21 in advance, thereby improving the subsequent wastewater treatment effect.

[0069] At the same time, when the motor 31 reverses and drives the filter plate 38 to move upward, it will also reduce the squeezing force applied to the wastewater inside the water storage barrel 101. The force applied by the wastewater inside the water storage barrel 101 on the sieve holes inside the filter barrel 21 is reduced, thereby improving the fluidity of the wastewater inside the filter barrel 21 into the water storage barrel 101 along the sieve holes, improving the flow and clearing effect of the sieve holes, and having stronger adaptability, higher stability and simpler operation. When the motor 31 reverses, it drives the cleaning rod 41 to reverse, and the cleaning rod 41 drives the arc-shaped brush plate 42 and the rotating screw 43 to reverse. The rotating screw 43 drives the scraper 44 to move upward and reversely scrape the inner wall of the bending plate 26, and the above process is repeated continuously, thereby achieving thorough and effective removal of wastewater and efficient scraping of impurities on the inner wall of the bending plate 26.

[0070] Meanwhile, the hard impurities are easily attached to the inner wall of the bending plate 26, which cannot be scraped by the up and down movement of the scraper 44. Therefore, when the scraper 44 moves to the impurity part, the bending plate 26 moves away from the scraper 44 end under the action of the impurities, and the distance value detected by the distance sensor increases. In order to improve the scraping and cleaning effect of the impurities at this position, the control unit increases the current of the electromagnetic ring 314, and the magnetic repulsion force of the electromagnetic ring 314 drives the magnetic plug plate 318 to press the connecting spring 317 and move away from the electromagnetic ring 314 along the side groove 316. When the magnetic plug plate 318 moves, it synchronously drives the multiple groups of butt joints 319 to move, and the staggered area of the butt joint 319 and the filter hole 315 increases, so that the actual opening area of the filter hole 315 decreases. When the filter plate 38 moves downward, the extrusion force exerted by the filter plate 38 on the inside of the water storage bucket 101 increases, and the force exerted by the wastewater on the bending plate 26 through the filter barrel 21 in the opposite direction increases. The action force between the bending plate 26 and the scraper 44 in the opposite direction increases, and the scraping and cleaning effect of the impurities on the inner wall of the bending plate 26 is realized by the extrusion and sliding force between the scraper 44 and the bending plate 26. It is more adaptable, more stable and has stronger cleaning effect.

[0071] Meanwhile, since the force exerted by the filter plate 38 on the wastewater in the water storage bucket 101 increases, the impact force of the wastewater entering the inside of the filter barrel 21 along the screen hole in the inner wall of the filter barrel 21 increases. The change in impact force effectively improves the filtering and unblocking effect of the screen hole, which is more adaptable, more stable and has stronger unblocking effect.

[0072] When the motor 31 drives the output rod 32 to rotate to the maximum angle, the filter plate 38 moves downward to the maximum distance, and the scraper 44 moves downward to the maximum distance. The scraper 44 drives the limiting block 46 to move downward to the maximum distance. At this time, the limiting block 46 is in contact with the arc-shaped brush plate 42, and the contact and collision of the limiting block 46 is realized by the rotation of the arc-shaped brush plate 42. The vibration cleaning of the arc-shaped brush plate 42 and the scraper 44 is realized by the collision, thereby effectively improving the vibration cleaning of the arc-shaped brush plate 42, the scraper 44 and the bending plate 26, and the cleaning efficiency and cleaning effect are higher.

[0073] The above process is repeated continuously, and the treated wastewater in the water storage bucket 101 is continuously discharged through the water outlet pipe 103, thereby realizing the cleaning treatment and reuse effect of the tannery sulfur-containing wastewater.

[0074] The device has high cleaning efficiency and good cleaning effect for wastewater, is simple and efficient to operate, has strong adaptability and good stability, meets different working conditions and wastewater conditions, and realizes rough treatment and fine treatment of wastewater at the same time, and the treatment means are sophisticated; at the same time, the up and down movement of the filter plate 38 can also realize the clearing of the sieve holes on the inner wall of the filter barrel 21, and realize the adjustment of the extrusion force of the scraper 44 on the bending plate 26, so as to meet the scraping and clearing effect of different impurities, with stronger versatility and better coordination between structures; in particular, the up and down movement of the filter plate 38 can also realize the discharge of the medicine, and the impact clearing of the filter barrel 21 can be realized with the help of the medicine, which is green, environmentally friendly, stable and efficient.

[0075] Third embodiment

[0076] A method for using a tanning sulfur-containing wastewater recycling device, wherein the method uses the tanning sulfur-containing wastewater recycling device to recycle and reuse the tanning sulfur-containing wastewater. The specific operating steps are as follows:

[0077] In the first step, the filter barrel 21 performs preliminary filtration on the wastewater.

[0078] In the second step, the motor 31 is started synchronously to make the output rod 32 and the rotating rod 25 rotate synchronously. The rotation of the rotating rod 25 drives the bending plate 26 to scrape the inner wall of the filter barrel 21.

[0079] In the third step, the overall rotation of the cleaning rod 41 allows the longer flocs to be wound and collected by the arc-shaped brush plate 42 , and the flocs adhering to the filter barrel 21 are scraped off by the scraper 44 .

[0080] In the fourth step, when the distance value detected by the distance sensor increases, the control unit controls the current of the electromagnetic ring 314 to increase, and uses the magnetic repulsion force of the electromagnetic ring 314 on the side of the magnetic plug plate 318 to drive the magnetic plug plate 318 to move away from the end of the electromagnetic ring 314. The magnetic plug plate 318 drives the docking hole 319 to move and the interlaced area with the filter hole 315 increases. When the filter plate 38 moves downward, the wastewater pressure inside the water storage barrel 101 increases, and the force exerted by the wastewater on the outer wall of the bending plate 26 increases. The bending plate 26 squeezes the elastic connecting plate 210 and the squeezing force of the scraper 44 increases.

[0081] This application further defines the reuse method, effectively improving the reuse efficiency and reuse effect of sulfur-containing wastewater, with stronger adaptability and higher stability.

[0082] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0083] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0084] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for recycling sulfur-containing wastewater from leather making, comprising a treatment chamber, wherein a rough treatment mechanism and a fine treatment mechanism are respectively provided inside the treatment chamber, and a cleaning mechanism is provided inside the rough treatment mechanism, characterized in that: The processing chamber includes a water storage barrel arranged on the outer wall of the filter barrel, and the outer wall of the water storage barrel is provided with a control unit. The coarse treatment mechanism includes a filter barrel, the top of the filter barrel is provided with an upper cover with threads, a rotating rod is provided inside the upper cover for rotation, one end of the rotating rod is provided with an elastic connecting plate, the other end of the elastic connecting plate is provided with a bent plate, and the inner wall of the bent plate is provided with a distance sensor; The fine processing mechanism includes a motor, an output rod is provided at the end of the output shaft of the motor, a threaded screw is provided at the bottom of the output rod, an electromagnetic ring is engaged with the outer wall of the threaded screw, a filter plate is provided on the outer wall of the electromagnetic ring, a plurality of filter holes are provided in a circular array inside the filter plate, a plurality of side grooves are provided inside the filter plate and on a side close to the electromagnetic ring, a magnetic plug plate is slidably provided inside the side groove, and a plurality of docking holes are provided inside the magnetic plug plate; The cleaning mechanism includes a cleaning rod rotatably mounted on the top of the bent plate, an outer wall of the cleaning rod is provided with an arc-shaped brush plate, a rotating screw is provided at the bottom of the arc-shaped brush plate, and a scraper is engaged with the outer wall of the rotating screw; The electromagnetic ring and the end surface of the magnetic plug plate have the same magnetic properties. The side wall of the side groove is provided with a connecting spring, and the other end of the connecting spring is fixedly connected to the side wall of the magnetic plug plate. The distance sensor is used to detect the distance between the bending plate and the rotating rod. The control unit electrically controls each electrical component. The side grooves are all arranged in a circular array around the electromagnetic ring, and the side grooves are all interconnected with the filter holes on the same radius inside the filter plate. The position of the magnetic plug plate matches the position of the filter holes on the same radius inside the filter plate, and the docking holes match the filter holes. The outer wall of the water storage barrel is connected to a water inlet pipe and a water outlet pipe respectively, the outer wall of the filter barrel is provided with a connecting cover plate fixedly connected to the inner wall of the water storage barrel, and the interior of the filter barrel and the connecting cover plate are both provided with a through groove connected to the water inlet pipe; The filter barrel is located on one side of the inner wall of the water storage barrel, and a limiting groove is provided on the inner wall of the filter barrel. A limiting block fixedly connected to the scraper is slidably provided in the inner cavity of the limiting groove, and the height of the limiting block is greater than the height of the scraper. The number of the arc-shaped brush plate, the rotating screw rod, and the scraper is set to multiple, and the arc-shaped brush plate, the rotating screw rod, and the scraper are arranged in a cross state in sequence; The outer wall of the rotating rod is provided with a transfer gear, and the top of the bending plate is rotatably provided with a linkage gear. The outer walls of the transfer gear and the linkage gear are meshed with a linkage synchronous belt. The top of the linkage gear is provided with a matching gear, and the outer wall of the matching gear is meshed with a meshing gear fixedly connected to the cleaning rod. The top of the meshing gear is provided with a connecting type rotating block, and the connecting type rotating block is slidably mounted on the bottom of the upper cover; Both sides of the bending plate are provided with scraping strips that fit with the inner wall of the filter barrel, the outer wall of the rotating rod is provided with a driven gear, the outer wall of the output rod is provided with a driving gear, and the outer walls of the driven gear and the driving gear are meshed with driving synchronous belts.

2. The device for recycling sulfur-containing wastewater from leather making according to claim 1, characterized in that: The top of the water storage barrel is covered with a top cover, and the motor is fixedly connected to the top of the top cover.

3. The device for recycling sulfur-containing wastewater from leather making according to claim 1, characterized in that: A matching rod is provided at the bottom of the threaded screw, and the bottom of the matching rod is rotatably connected to the bottom of the water storage bucket through a bearing. The outer wall of the matching rod is sealed with a liquid storage tank, and the top thread of the liquid storage tank is provided with an arc-shaped elastic cover plate that is slidably connected to the matching rod. The outer wall of the liquid storage tank is connected to a plurality of nozzles, and a limit sleeve is provided on the outer wall of the matching rod and below the arc-shaped elastic cover plate.

4. The device for recycling sulfur-containing wastewater from leather making according to claim 3, characterized in that: The top outlet ends of the multiple nozzles are all connected with sealing blocks, the inner walls of the multiple nozzles are provided with connecting rings, and a telescopic spring is provided between the connecting rings and the sealing blocks. The sealing blocks are in the shape of an inverted truncated cone, and the diameter of the sealing blocks gradually increases from the bottom to the top. The interior of the liquid storage tank is connected to a liquid inlet pipe through a one-way valve, and the other end of the liquid inlet pipe passes through the water storage barrel and is connected to the medicine tank. The flow direction of the one-way valve is one-way flow along the medicine tank to the liquid storage tank.

5. A method for using a tanning sulfur-containing wastewater recycling device, wherein the method utilizes the tanning sulfur-containing wastewater recycling device according to claim 1 to recycle the tanning sulfur-containing wastewater, characterized in that: The specific steps are as follows: In the first step, the filter barrel performs preliminary filtration on the wastewater; In the second step, the motor is synchronously started to rotate the output rod and the rotating rod synchronously, and the rotation of the rotating rod drives the bending plate to scrape the inner wall of the filter barrel; In the third step, the overall rotation of the cleaning rod allows the longer flocs to be rolled up and collected by the arc-shaped brush plate, and the flocs adhering to the filter barrel are scraped off by the scraper; In the fourth step, when the distance value detected by the distance sensor increases, the control unit controls the current of the electromagnetic ring to increase, and uses the magnetic repulsion force of the electromagnetic ring on the side of the magnetic plug plate to drive the magnetic plug plate to move away from the end of the electromagnetic ring. The magnetic plug plate drives the docking hole to move and the interlaced area with the filter hole increases. When the filter plate moves downward, the wastewater pressure inside the water storage barrel increases, and the force exerted by the wastewater on the outer wall of the bent plate increases. The bent plate squeezes the elastic connecting plate and the squeezing force of the scraper increases.

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