Wastewater treatment device based on sulfur cycle and process thereof

Abstract

The application relates to the technical field of wastewater treatment, and discloses a wastewater treatment device based on sulfur circulation and a process thereof, which comprises a treatment box, a reduction box and a treatment concentration mechanism; a storage box is fixedly installed at the top of the treatment box; a bottom cover is movably connected to the bottom of the treatment box through a thread structure; when wastewater treatment in the treatment box is completed, the first electric push rod is used to drive the moving plate to move, the thread part on one side of the moving plate is matched with the side wall of the thread rod, the thread rod can drive the movable part to move in the treatment box during rotation, the movable part moves downwards in the treatment box, liquid passes through the screen mesh and flows to the top of the movable part, heavy metal impurities separated in the liquid are isolated at the bottom of the movable part, and finally, the heavy metal impurities are compressed at the bottom of the treatment box, so that the impurities floating in the liquid after treatment are greatly reduced, the separated impurities are easier to be concentrated and treated, and the wastewater treatment efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device and process based on the sulfur cycle. Background Technology

[0002] Wastewater treatment utilizes physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, fully utilizing water resources. Heavy metal wastewater mainly originates from wastewater discharged by mining, smelting, electrolysis, electroplating, pesticide, pharmaceutical, paint, and pigment companies. Failure to treat heavy metal wastewater will severely pollute the environment. The types, concentrations, and forms of heavy metals in wastewater vary depending on the specific production enterprise. Besides heavy metals, which are crucial in wastewater treatment, sulfur cycle-based wastewater treatment devices utilize sulfides (such as sulfates and thiosulfates) and the metabolic activities of sulfur-oxidizing / reducing microorganisms to remove pollutants. This technology is particularly suitable for treating wastewater containing nitrogen, heavy metals, or organic matter.

[0003] Traditional wastewater treatment devices consume excessive resources when treating wastewater containing nitrogen, heavy metals, or organic matter, and cannot be recycled. In order to achieve the simultaneous removal of nitrogen, heavy metals, and organic matter and the recycling of sulfur resources, a wastewater treatment device based on sulfur cycle is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device and process based on the sulfur cycle, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wastewater treatment device based on the sulfur cycle, comprising:

[0007] The processing box and the reduction box are provided. A storage box is fixedly installed on the top of the processing box, and a bottom cover is movably connected to the bottom of the processing box through a threaded structure.

[0008] A processing and concentrating mechanism is disposed inside the processing box. The processing and concentrating mechanism moves inside the processing box through movable parts to concentrate the heavy metal impurities generated after processing at the bottom of the processing box, thereby preventing the impurities from floating inside the processing box.

[0009] A reduction conveying mechanism is provided between the reduction tank and the storage tank. The reduction conveying mechanism conveys the reduced elemental sulfur to the storage tank through a first conveying pipe and a second conveying pipe.

[0010] An environmental control mechanism is located at the top of the treatment chamber. The environmental control mechanism injects nitrogen into the treatment chamber to expel oxygen, thereby creating an anaerobic environment inside the treatment chamber. The environmental control mechanism also injects oxygen into the reduction chamber to create an oxygen-rich environment inside the reduction chamber.

[0011] Optionally, the processing central mechanism includes a limiting block, a screen, a buoyancy component, a first electric push rod, a moving plate, and a threaded rod. The limiting block is fixedly installed on the side wall of the movable component. A limiting groove is formed in the inner wall of the processing box. The limiting block is slidably connected inside the limiting groove. The movable component is slidably connected inside the processing box through the limiting block. The threaded rod is rotatably connected inside the processing box. An installation hole that matches the threaded rod is formed inside the movable component. An installation cavity is formed in the inner wall of the installation hole. The first electric push rod is fixedly installed on the inner wall of the installation cavity. The moving plate is fixedly installed on the output end of the first electric push rod. A threaded component is fixedly installed on one side of the moving plate. The threaded component matches the threaded rod. The movable component is movably connected to the threaded rod through the threaded component. The buoyancy component is fixedly installed at the bottom of the movable component. The screen is fixedly installed inside the movable component.

[0012] Optionally, a first servo motor is fixedly installed on the top of the processing box, a gear shaft is fixedly installed on the output end of the first servo motor, a gear ring is fixedly installed on the side wall of the threaded rod, and the gear shaft meshes with the gear ring.

[0013] Optionally, a stirring element is fixedly installed on the side wall of the threaded rod, and a plurality of stirring elements are provided. A fixing ring is fixedly installed on the side wall of the plurality of stirring elements, and the fixing ring is in contact with the inner wall of the processing tank.

[0014] Optionally, the threaded rod has a flow groove inside, and a through hole is formed on the side of the flow groove near the bottom, the through hole penetrating the threaded rod.

[0015] Optionally, the environmental control mechanism includes a first gas supply pipe, a second gas supply pipe, a second electric push rod, and a baffle. The first gas supply pipe is fixedly installed inside the reduction chamber, and a plurality of gas outlets are opened on one side of the first gas supply pipe. The second gas supply pipe is fixedly installed inside the storage box, and one end of the second gas supply pipe is connected to the flow channel. The second electric push rod is fixedly installed on the inner wall of the second gas supply pipe. The baffle is fixedly installed at the output end of the second electric push rod and fits into the second gas supply pipe. A transmission device is fixedly installed on one side of the storage box, and a grinding roller is fixedly installed at the connecting end of the transmission device.

[0016] Optionally, the environmental control mechanism further includes an exhaust pipe, a fourth servo motor, a movable rod, a limit rod, a pressure plate, a mounting shaft, and a valve disc. The exhaust pipe is fixedly installed on the top of the treatment box and is connected to the treatment box. The mounting shaft is fixedly installed inside the exhaust pipe. The valve disc is rotatably connected to the side wall of the mounting shaft via a torsion spring. The limit rod is fixedly installed on the inner wall of the exhaust pipe. The pressure plate is slidably connected to the side wall of the limit rod. The movable rod is installed inside the exhaust pipe. The fourth servo motor is fixedly installed on the side wall of the exhaust pipe. The movable rod is fixedly installed at the output end of the fourth servo motor. The movable rod is rotatably connected to the inside of the exhaust pipe via the fourth servo motor. The movable rod is located inside the pressure plate. The valve disc has an inclined surface at its top.

[0017] Optionally, an inlet pipe is fixedly installed inside the processing tank. A first corrugated telescopic tube is fixedly installed at one end of the inlet pipe. One end of the first corrugated telescopic tube is fixedly installed inside the movable part, and one end of the first corrugated telescopic tube is located at the bottom of the movable part. A fixing hole is opened inside the movable part, and a filter screen is fixedly installed inside the fixing hole. A delivery pump is fixedly installed at the top of the reduction tank. A connecting pipe is fixedly installed at the input end of the delivery pump. The other end of the connecting pipe is fixedly installed inside the processing tank. A second corrugated telescopic tube is installed at the other end of the connecting pipe. One end of the second corrugated telescopic tube is located at the top of the fixing hole. A first mounting seat is fixedly installed at the top of the movable part. A fixing frame is fixedly installed on the side wall of the second corrugated telescopic tube. A second mounting seat is fixedly installed on the side wall of the fixing frame. A connecting rod is rotatably connected inside the first mounting seat, and the other end of the connecting rod is movably connected inside the second mounting seat.

[0018] Optionally, the reduction conveying mechanism includes a second servo motor, a conveying rod, a third servo motor, a connecting pipe, a rotating shaft, a spiral filter, a drain pipe, and a feed pipe. The first conveying pipe is fixedly installed at the bottom of the reduction tank. The second servo motor is fixedly installed at one end of the first conveying pipe. The conveying rod is rotatably connected inside the first conveying pipe, and one end of the conveying rod is fixedly installed at the output end of the second servo motor. The third servo motor is fixedly installed at the top of the second conveying pipe. The rotating shaft is fixedly installed at the output end of the third servo motor and is rotatably connected inside the second conveying pipe via the third servo motor. The spiral filter is fixedly installed on the side wall of the rotating shaft. The drain pipe is fixedly installed at the bottom of the second conveying pipe. The connecting pipe is fixedly installed at the top of the second conveying pipe. The feed pipe is fixedly installed at the top of the storage tank, and one end of the connecting pipe is connected to the feed pipe.

[0019] A wastewater treatment process based on the sulfur cycle specifically includes the following steps:

[0020] S1: When in use, the wastewater to be treated is poured in through the inlet pipe. The wastewater flows through the inlet pipe and the first corrugated expansion pipe to the bottom of the moving part. Then, nitrogen is delivered into the flow tank through the second gas delivery pipe to create an anaerobic environment inside the treatment tank, thereby ensuring the reaction between elemental sulfur and wastewater. During the nitrogen delivery process, the air circulation inside the second gas delivery pipe carries the elemental sulfur powder particles inside the storage tank into the flow tank. Then, it is blown out through the through hole inside the flow tank into the liquid inside the treatment tank, so that the elemental sulfur powder particles inside the storage tank can be better mixed with the wastewater inside the treatment tank.

[0021] S2: After processing, the first servo motor can be used to control the rotation of the gear shaft. The rotation of the gear shaft can drive the gear ring and the threaded rod to rotate. Thus, the first servo motor can control the rotation of the threaded rod. The first electric push rod moves the moving plate, so that the threaded part on one side of the moving plate fits with the side wall of the threaded rod. During the rotation of the threaded rod, the moving part can move inside the processing box. As the moving part moves downward inside the processing box, the liquid flows through the screen to the top of the moving part. The heavy metal impurities at the separation point in the liquid are isolated at the bottom of the moving part and finally compressed at the bottom of the processing box.

[0022] During this process, the delivery pump can pump the treated water inside the treatment tank into the reduction tank through the connecting pipe. The second corrugated telescopic pipe can ensure that the connecting pipe can always be connected to the moving part during the movement. The connecting rod can keep the distance between one end of the second corrugated telescopic pipe and the fixed hole during the movement of the moving part, so that when the connecting pipe draws liquid from the inside of the treatment tank through the second corrugated telescopic pipe, it will not suck in the sediment.

[0023] S3: By setting up a first gas supply pipe, oxygen can be supplied into the reduction tank, creating an oxygen-rich environment inside the reduction tank. This allows the HS in the treated liquid to be oxidized into elemental sulfur. The liquid inside the first supply pipe can be transported by rotating the conveying rod, and then transported to the second supply pipe. A third servo motor can be used to control the rotation of the rotating shaft. The rotation of the rotating shaft can drive the spiral filter to rotate, allowing the elemental sulfur formed during the reduction process inside the reduction tank and the first supply pipe to be transported through the spiral filter. The filtered water can then fall down through the spiral filter into the drain pipe for discharge. Afterward, the elemental sulfur transported by the spiral filter can be returned to the storage tank through the connecting pipe and the feed pipe, realizing the recycling of elemental sulfur.

[0024] The present invention has at least the following beneficial effects:

[0025] (1) This solution sets up a centralized treatment mechanism. After the wastewater inside the treatment tank is treated, the first electric push rod moves to drive the moving plate to move, so that the threaded part on one side of the moving plate matches the side wall of the threaded rod. During the rotation of the threaded rod, the moving part can move inside the treatment tank. As the moving part moves downward inside the treatment tank, the liquid flows through the screen to the top of the moving part. The heavy metal impurities at the separation point in the liquid are isolated at the bottom of the moving part and finally compressed at the bottom of the treatment tank, thereby greatly reducing the impurities floating in the treated liquid, making it easier to centrally treat the impurities at the separation point, and ensuring the efficiency of wastewater treatment.

[0026] (2) This scheme can control the rotation of the conveying rod by setting a second servo motor. The liquid inside the first conveying pipe can be conveyed by the rotation of the conveying rod. The liquid is conveyed from the first conveying pipe to the second conveying pipe. The rotation of the shaft can drive the spiral filter to rotate, so that the elemental sulfur formed during the reduction process inside the reduction tank and inside the first conveying pipe can be conveyed through the spiral filter. The filtered water can fall down into the drain pipe through the spiral filter and be discharged. Then, the elemental sulfur conveyed by the spiral filter can be returned to the storage tank through the connecting pipe and the feed pipe, so as to realize the recycling of elemental sulfur.

[0027] (3) This scheme can deliver oxygen into the reduction tank by setting the first gas supply pipe, so that the reduction tank can form an oxygen-rich environment, thereby oxidizing HS in the treated liquid into elemental sulfur. By setting the second gas supply pipe, nitrogen can be delivered into the flow tank, so that the treatment tank can form an anaerobic environment, thereby ensuring the reaction between elemental sulfur and wastewater.

[0028] (4) This scheme can control the movement of the baffle by setting a second electric push rod. The movement of the baffle can control the connection between the second gas supply pipe and the storage box. When the second gas supply pipe is connected to the storage box, the air flow inside the second gas supply pipe can drive the elemental sulfur powder particles inside the storage box into the flow channel. Then, it is blown out through the through hole inside the flow channel into the liquid inside the treatment box, so that the elemental sulfur powder particles inside the storage box can be better mixed with the wastewater inside the treatment box, and the mixing efficiency is higher. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the processing box of the present invention;

[0032] Figure 3 This is a schematic diagram of the threaded rod structure of the present invention;

[0033] Figure 4 This is a partial cross-sectional view of the threaded rod of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the moving part of the present invention;

[0035] Figure 6 This is a schematic diagram of the movable plate structure used in this invention;

[0036] Figure 7 This is a schematic diagram of the bottom structure of the movable part of the present invention;

[0037] Figure 8 This is a schematic diagram of the internal structure of the storage box of the present invention;

[0038] Figure 9 This is a schematic diagram of the internal structure of the exhaust pipe of the present invention;

[0039] Figure 10 This is a schematic diagram of the reconstructed conveying mechanism of the present invention;

[0040] Figure 11 This is a cross-sectional view of the movable component of the present invention;

[0041] Figure 12 This is a schematic diagram of the environmental control mechanism of the present invention;

[0042] Figure 13 This is a schematic diagram of the connecting pipe installation structure in this invention.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1. Processing box; 101. Limiting groove; 11. Inlet pipe; 111. First corrugated telescopic pipe; 12. First servo motor; 121. Gear shaft; 122. Gear ring; 13. Bottom cover; 14. Moving part; 141. Limiting block; 142. Screen; 143. Fixing hole; 1431. Filter screen; 144. Buoyancy component; 145. Mounting hole; 146. Mounting cavity; 147. First electric push rod; 148. Moving plate; 149. Threaded part; 15. Threaded rod; 151. Flow groove; 153. Through hole; 156. Stirring component; 157. Fixing ring; 2. Reduction box; 21. Transfer pump; 22. Connecting pipe; 221. Second corrugated telescopic pipe; 222. Fixing frame; 223. First 224. Mounting base; 225. Connecting rod; 226. Second mounting base; 23. First conveying pipe; 231. Second servo motor; 232. Conveying rod; 24. Second conveying pipe; 241. Third servo motor; 242. Connecting pipe; 243. Rotating shaft; 244. Spiral filter element; 245. Drain pipe; 25. First air supply pipe; 251. Air outlet; 3. Storage box; 31. Exhaust pipe; 311. Fourth servo motor; 312. Movable rod; 313. Limiting rod; 314. Pressure plate; 315. Mounting shaft; 316. Valve disc; 32. Second air supply pipe; 321. Second electric push rod; 322. Baffle; 33. Feed pipe; 34. Transmission device; 341. Grinding roller; 4. Mounting pipe. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1-13 This invention provides a wastewater treatment device and process based on the sulfur cycle, comprising:

[0047] Processing box 1 and reduction box 2, with a storage box 3 fixedly installed on the top of processing box 1 and a bottom cover 13 movably connected to the bottom of processing box 1 by a threaded structure;

[0048] The processing concentration mechanism is located inside the processing box 1. The processing concentration mechanism moves inside the processing box 1 through the movable part 14 to concentrate the heavy metal impurities generated after processing at the bottom of the processing box 1, so as to prevent the impurities from floating inside the processing box 1.

[0049] The reduction conveying mechanism is located between the reduction tank 2 and the storage tank 3. The reduction conveying mechanism conveys the reduced elemental sulfur to the storage tank 3 through the first conveying pipe 23 and the second conveying pipe 24.

[0050] An environmental control mechanism is located at the top of the treatment chamber 1. The environmental control mechanism injects nitrogen into the treatment chamber 1 to expel the oxygen inside the treatment chamber 1, thus creating an anaerobic environment inside the treatment chamber 1. The environmental control mechanism injects oxygen into the reduction chamber 2 to create an oxygen-rich environment inside the reduction chamber 2.

[0051] In some embodiments, see Figure 2 , Figure 5 , Figure 6 , Figure 7 The centralized processing mechanism includes a limiting block 141, a screen 142, a buoyancy component 144, a first electric push rod 147, a moving plate 148, and a threaded rod 15. The limiting block 141 is fixedly installed on the side wall of the movable component 14. A limiting groove 101 is formed in the inner wall of the processing box 1, and the limiting block 141 is slidably connected inside the limiting groove 101. The movable component 14 is slidably connected inside the processing box 1 through the limiting block 141. The threaded rod 15 is rotatably connected inside the processing box 1, and a mounting hole 145 that matches the threaded rod 15 is formed inside the movable component 14. An installation cavity 146 is formed on the inner wall of the mounting hole 145. The first electric push rod 147 is fixedly installed on the inner wall of the installation cavity 146. The movable plate 148 is fixedly installed on the output end of the first electric push rod 147. A threaded part 149 is fixedly installed on one side of the movable plate 148. The threaded part 149 is engaged with the threaded rod 15. The movable part 14 is movably connected to the threaded rod 15 through the threaded part 149. The buoyancy component 144 is fixedly installed at the bottom of the movable part 14. The screen 142 is fixedly installed inside the movable part 14. The movable part 14 is buoyed by the buoyancy component 144. 4. Under normal circumstances, it can float on the surface of the wastewater inside the treatment tank 1. The first electric push rod 147 can be used to control the movement of the moving plate 148. The limit block 141 and the limit groove 101 can limit the rotation of the moving part 14. After the wastewater inside the treatment tank 1 is treated, the first electric push rod 147 moves the moving plate 148, so that the threaded part 149 on one side of the moving plate 148 is engaged with the side wall of the threaded rod 15. During the rotation of the threaded rod 15, the moving part 14 can be driven to move inside the treatment tank 1. The liquid moves downward inside the treatment tank 1 via the movable part 14. The liquid flows through the screen 142 to the top of the movable part 14. Heavy metal impurities at the separation point in the liquid are isolated at the bottom of the movable part 14 and finally compressed at the bottom of the treatment tank 1, thereby greatly reducing the impurities floating in the treated liquid. This makes it easier to centrally treat the impurities at the separation point and ensures the effectiveness of wastewater treatment. The bottom cover 13 is rotatably connected to the bottom of the treatment tank 1 via a threaded structure. By rotating and removing the bottom cover 13, the impurities can be removed from the inside of the treatment tank 1 in one go.

[0052] In some embodiments, see Figure 1 , Figure 2A first servo motor 12 is fixedly installed on the top of the processing box 1. A gear shaft 121 is fixedly installed on the output end of the first servo motor 12. A gear ring 122 is fixedly installed on the side wall of the threaded rod 15. The gear shaft 121 meshes with the gear ring 122. By setting the first servo motor 12, the gear shaft 121 can be used to control the rotation of the gear shaft 121. The rotation of the gear shaft 121 can drive the gear ring 122 and the threaded rod 15 to rotate, so the rotation of the threaded rod 15 can be controlled by the first servo motor 12.

[0053] In some embodiments, see Figure 2 , Figure 3 A stirring element 156 is fixedly installed on the side wall of the threaded rod 15. Several stirring elements 156 are provided, and a fixing ring 157 is fixedly installed on the side wall of several stirring elements 156. The fixing ring 157 is in contact with the inner wall of the treatment tank 1. By setting the stirring element 156, the wastewater inside the treatment tank 1 can be stirred when the threaded rod 15 rotates, thereby accelerating the mixing reaction between elemental sulfur powder particles and wastewater.

[0054] In some embodiments, see Figure 4 , Figure 8 The threaded rod 15 has a flow groove 151 inside, and a through hole 153 is opened on the side of the flow groove 151 near the bottom, through which the threaded rod 15 is passed. The environmental control mechanism includes a first air supply pipe 25, a second air supply pipe 32, a second electric push rod 321, and a baffle 322. The first air supply pipe 25 is fixedly installed inside the reduction box 2, and several air outlets 251 are opened on one side of the first air supply pipe 25. The second air supply pipe 32 is fixedly installed inside the storage box 3, and one end of the second air supply pipe 32 is connected to the flow groove 151. The second electric push rod 321 is fixedly installed on the inner wall of the second air supply pipe 32. The baffle 322 is fixedly installed on the output end of the second electric push rod 321, and the baffle 322 fits with the second air supply pipe 32. A transmission device 34 is fixedly installed on one side of the storage box 3, and a grinding roller 341 is fixedly installed on the connecting end of the transmission device 34. By setting the first air supply pipe 25, the first air supply pipe 25 can supply air to the storage box 3. Oxygen is supplied to the reduction tank 2 to create an oxygen-rich environment, thereby oxidizing the HS in the treated liquid into elemental sulfur. Nitrogen is supplied to the flow channel 151 via a second gas supply pipe 32, creating an anaerobic environment inside the treatment tank 1 to ensure the reaction between elemental sulfur and wastewater. A second electric push rod 321 controls the movement of a baffle 322, which in turn controls the connection between the second gas supply pipe 32 and the storage tank 3. When the second gas supply pipe 32 is connected to the storage tank 3, the airflow inside the pipe carries the elemental sulfur powder particles from the storage tank 3 into the flow channel 151, where they are then blown out through the through-hole 153 into the liquid inside the treatment tank 1. This allows the elemental sulfur powder particles in the storage tank 3 to mix better with the wastewater in the treatment tank 1, resulting in higher mixing efficiency.

[0055] In some embodiments, see Figure 8 , Figure 10 The environmental control mechanism also includes an exhaust pipe 31, a fourth servo motor 311, a movable rod 312, a limit rod 313, a pressure plate 314, a mounting shaft 315, and a valve disc 316. The exhaust pipe 31 is fixedly installed on the top of the treatment box 1 and is connected to the treatment box 1. The mounting shaft 315 is fixedly installed inside the exhaust pipe 31. The valve disc 316 is rotatably connected to the side wall of the mounting shaft 315 via a torsion spring. The limit rod 313 is fixedly installed on the inner wall of the exhaust pipe 31. The pressure plate 314 is slidably connected to the side wall of the limit rod 313. The movable rod 312 is installed inside the exhaust pipe 31. The fourth servo motor 311 is fixedly installed on the side wall of the exhaust pipe 31. The movable rod 312 is fixedly installed at the output end of the fourth servo motor 311. The fourth servo motor 311 is rotatably connected inside the exhaust pipe 31. The movable rod 312 is located inside the pressure plate 314. The top of the valve disc 316 has an inclined surface. By setting a torsion spring, the valve disc 316 always has a force to rotate to one side, so that the valve disc 316 can reset itself when no force is applied. The pressure plate 314 can be restricted from rotating by setting a limit rod 313. The two ends of the side wall of the movable rod 312 have opposite threaded grooves. There are two pressure plates 314, which are respectively connected to the threaded grooves at both ends. By rotating the movable rod 312, the two pressure plates 314 can move in opposite directions at the same time. By moving the pressure plates 314 in opposite directions, the engagement angle of the valve disc 316 can be controlled, thereby controlling the exhaust volume of the exhaust pipe 31.

[0056] In some embodiments, see Figure 2 , Figure 9The processing tank 1 has an inlet pipe 11 fixedly installed inside. A first corrugated telescopic tube 111 is fixedly installed at one end of the inlet pipe 11. The first corrugated telescopic tube 111 is fixedly installed inside the movable part 14, with one end located at the bottom of the movable part 14. A fixing hole 143 is provided inside the movable part 14, and a filter screen 1431 is fixedly installed inside the fixing hole 143. The top of the reduction tank 2 has a transfer pump 21 fixedly installed. A connecting pipe 22 is fixedly installed at the input end of the transfer pump 21. The other end is fixedly installed inside the processing box 1. A second corrugated telescopic tube 221 is installed at the other end of the connecting tube 22. One end of the second corrugated telescopic tube 221 is located at the top of the fixing hole 143. A first mounting seat 223 is fixedly installed on the top of the movable part 14. A fixing frame 222 is fixedly installed on the side wall of the second corrugated telescopic tube 221. A second mounting seat 225 is fixedly installed on the side wall of the fixing frame 222. A connecting rod 224 is rotatably connected inside the first mounting seat 223. The other end of the connecting rod 224 is movably connected to the second mounting seat 223. Inside the mounting 225, a filter screen 1431 is installed to prevent sediment from moving to the top of the movable part 14 through the fixed hole 143. A first corrugated telescopic tube 111 is installed to ensure that the inlet pipe 11 can still be connected to the movable part 14 during the movement of the treatment tank 1. The inlet pipe 11 can be used to transport the wastewater to be treated into the treatment tank 1, so that the wastewater is located at the bottom of the movable part 14. A transfer pump 21 is installed to pump the treated water inside the treatment tank 1 into the reduction tank 2 through the connecting pipe 22. A second corrugated telescopic tube 221 is installed to ensure that the connecting pipe 22 can always be connected to the movable part 14 during the movement of the movable part 14. A connecting rod 224 is installed to ensure that one end of the second corrugated telescopic tube 221 can maintain the distance between the fixed hole 143 and the movable part 14 during the movement of the movable part 14, so that when the connecting pipe 22 draws liquid from the inside of the treatment tank 1 through the second corrugated telescopic tube 221, it will not suck in the sediment, so that the sediment is always kept at the bottom of the movable part 14.

[0057] In some embodiments, see Figure 8 , Figure 10The reduction conveying mechanism includes a second servo motor 231, a conveying rod 232, a third servo motor 241, a connecting pipe 242, a rotating shaft 243, a spiral filter element 244, a drain pipe 245, and a feed pipe 33. The first conveying pipe 23 is fixedly installed at the bottom of the reduction tank 2. The second servo motor 231 is fixedly installed at one end of the first conveying pipe 23. The conveying rod 232 is rotatably connected inside the first conveying pipe 23, and one end of the conveying rod 232 is fixedly installed at the output end of the second servo motor 231. The third servo motor 241 is fixedly installed at the top of the second conveying pipe 241. The rotating shaft 243 is fixedly installed at the output end of the third servo motor 241 and is rotatably connected inside the second conveying pipe 241 via the third servo motor 241. The spiral filter element 244 is fixedly installed on the side wall of the rotating shaft 243. The drain pipe 245 is fixedly installed at the bottom of the second conveying pipe 24. The connecting pipe 242 is fixedly installed at the top of the second conveying pipe 24. The feed pipe 33 is fixedly installed at... At the top of the storage tank 3, one end of the connecting pipe 242 is connected to the feed pipe 33. A second servo motor 231 is provided to control the rotation of the conveying rod 232. The rotation of the conveying rod 232 can transport the liquid inside the first conveying pipe 23 to the second conveying pipe 24. A third servo motor 241 is provided to control the rotation of the rotating shaft 243. The rotation of the rotating shaft 243 can drive the spiral filter element 244 to rotate, so that the elemental sulfur formed during the reduction process inside the reduction tank 2 and the first conveying pipe 23 can be transported through the spiral filter element 244. The filtered water can fall down through the spiral filter element 244 into the drain pipe 245 for discharge. Then, the elemental sulfur transported by the spiral filter element 244 can be returned to the storage tank 3 through the connecting pipe 242 and the feed pipe 33, realizing the recycling of elemental sulfur.

[0058] In some embodiments, see Figure 13 When the threaded rod 15 does not have a flow groove 151, the storage tank 3 does not have a second gas supply pipe 32. An installation pipe 4 is installed on one side of the storage tank 3. One-way gas valves are installed in both the installation pipe 4 and the connecting pipe 242. The storage tank 3 is connected to the liquid inlet pipe 11 through the installation pipe 4. When it is necessary to add nitrogen to the treatment tank 1 to create an anaerobic environment, nitrogen is supplied through the feed pipe 33. The nitrogen is introduced into the liquid inlet pipe 11 through the storage tank 3 and the installation pipe 4, and then sent to the treatment tank 1 through the first corrugated telescopic pipe 111. During this process, the elemental sulfur powder in the storage tank 3 can be transported to the treatment tank 1 through the nitrogen to achieve the addition of elemental sulfur. By setting a one-way gas valve, nitrogen is prevented from being blown into the second supply pipe 24 through the connecting pipe 242. At the same time, wastewater is prevented from flowing into the storage tank 3 through the installation pipe 4 when adding wastewater.

[0059] The working process and principle of this invention are as follows: During use, the wastewater to be treated is poured in through the inlet pipe 11. The wastewater flows through the inlet pipe 11 and the first corrugated telescopic pipe 111 to the bottom of the movable part 14. Then, nitrogen gas is supplied into the flow tank 151 through the second gas supply pipe 32, creating an anaerobic environment inside the treatment tank 1, thereby ensuring the reaction between elemental sulfur and the wastewater. During nitrogen supply, the connection between the second gas supply pipe 32 and the storage tank 3 can be controlled by moving the baffle 322. When the second gas supply pipe 32 is connected to the storage tank 3, the airflow inside the second gas supply pipe 32 can carry the elemental sulfur powder particles inside the storage tank 3 into the flow tank 151, and then blown out through the through-hole 153 inside the flow tank 151 into the liquid inside the treatment tank 1. This allows the elemental sulfur powder particles inside the storage tank 3 to mix better with the wastewater inside the treatment tank 1, resulting in higher mixing efficiency. The fourth servo motor 311 controls the rotation of the movable rod 312, causing the two pressure plates 314 to move in opposite directions simultaneously. This reverse movement of the pressure plates 314 controls the engagement angle of the valve disc 316, thereby controlling the exhaust volume of the exhaust pipe 31 and ensuring the environmental conditions inside the treatment tank 1. After treatment, the first servo motor 12 controls the rotation of the gear shaft 121, which in turn drives the gear ring 122 and the threaded rod 15 to rotate. The first servo motor 12 controls the rotation of the threaded rod 15, and the first electric push rod 147 moves the moving plate 148, causing the moving plate... The threaded part 149 on one side of 148 engages with the side wall of the threaded rod 15, allowing the rotating threaded rod 15 to drive the movable part 14 to move inside the treatment tank 1. As the movable part 14 moves downwards inside the treatment tank 1, the liquid flows through the screen 142 to the top of the movable part 14. Heavy metal impurities at the separation point in the liquid are isolated at the bottom of the movable part 14 and finally compressed at the bottom of the treatment tank 1. During this process, the transfer pump 21 can pump the treated water from inside the treatment tank 1 into the reduction tank 2 through the connecting pipe 22. The second corrugated telescopic pipe 221 ensures that the connecting pipe 22 remains connected to the movable part 14 throughout its movement. The connecting rod 224 allows one end of the second corrugated telescopic pipe 221 to move freely within the tank. During the movement of component 14, the distance between it and the fixed hole 143 is maintained, so that when the connecting pipe 22 extracts liquid from inside the treatment tank 1 through the second corrugated telescopic pipe 221, it will not suck in the sediment, keeping the sediment at the bottom of the moving component 14. Oxygen can be supplied to the reduction tank 2 through the first gas supply pipe 25, creating an oxygen-rich environment inside the reduction tank 2, thereby oxidizing the HS in the treated liquid into elemental sulfur. The liquid inside the first supply pipe 23 can be transported by rotating the conveying rod 232, and then transported to the second supply pipe 24. A third servo motor 241 can be used to control the rotation of the rotating shaft 243, which in turn drives the spiral filter element 244 to rotate.The elemental sulfur formed during reduction inside the reduction tank 2 and the first conveying pipe 23 is transported through the spiral filter element 244. The filtered water then flows down through the spiral filter element 244 into the drain pipe 245 for discharge. Afterwards, the elemental sulfur transported by the spiral filter element 244 can be returned to the storage tank 3 through the connecting pipe 242 and the feed pipe 33, thus achieving the recycling of elemental sulfur.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device based on the sulfur cycle, characterized in that, include: The processing box (1) and the reduction box (2) are provided. A storage box (3) is fixedly installed on the top of the processing box (1), and a bottom cover (13) is movably connected to the bottom of the processing box (1) through a threaded structure. A processing concentration mechanism is disposed inside the processing box (1). The processing concentration mechanism moves inside the processing box (1) via a movable part (14) to concentrate the heavy metal impurities generated after processing at the bottom of the processing box (1), preventing the impurities from floating inside the processing box (1). The processing concentration mechanism includes a limiting block (141), a first electric push rod (147), a moving plate (148), and a threaded rod (15). The movable part (14) is slidably connected inside the processing box (1) via the limiting block (141), and the threaded rod (15) is rotatably connected inside the processing box (1). The movable part (14) has an installation hole (145) that matches the threaded rod (15) inside. The inner wall of the installation hole (145) has an installation cavity (146). The first electric push rod (147) is fixedly installed on the inner wall of the installation cavity (146). The moving plate (148) is fixedly installed on the output end of the first electric push rod (147). A threaded part (149) is fixedly installed on one side of the moving plate (148). The threaded part (149) matches the threaded rod (15). The movable part (14) is movably connected to the threaded rod (15) through the threaded part (149). An inlet pipe (11) is fixedly installed inside the processing tank (1). A first corrugated telescopic pipe (111) is fixedly installed at one end of the inlet pipe (11). One end of the first corrugated telescopic pipe (111) is fixedly installed inside the movable part (14). One end of the first corrugated telescopic pipe (111) is located at the bottom of the movable part (14). A fixing hole (143) is opened inside the movable part (14). A filter screen (1431) is fixedly installed inside the fixing hole (143). A transfer pump (21) is fixedly installed on the top of the reduction tank (2). A connecting pipe (22) is fixedly installed at the input end of the transfer pump (21). The other end of the connecting pipe (22) is fixedly installed inside the processing tank (1). A second corrugated telescopic pipe (221) is installed at the other end of the connecting pipe (22). One end of the second corrugated telescopic tube (221) is located at the top of the fixed hole (143). A first mounting seat (223) is fixedly installed on the top of the movable part (14). A fixing frame (222) is fixedly installed on the side wall of the second corrugated telescopic tube (221). A second mounting seat (225) is fixedly installed on the side wall of the fixing frame (222). A connecting rod (224) is rotatably connected inside the first mounting seat (223). The other end of the connecting rod (224) is movably connected inside the second mounting seat (225). A reduction conveying mechanism is provided between the reduction tank (2) and the storage tank (3). The reduction conveying mechanism conveys the reduced elemental sulfur to the storage tank (3) through the first conveying pipe (23) and the second conveying pipe (24). An environmental control mechanism is installed on the top of the treatment box (1). The environmental control mechanism injects nitrogen into the treatment box (1) to expel oxygen from the treatment box (1), thereby creating an anaerobic environment inside the treatment box (1). The environmental control mechanism injects oxygen into the reduction box (2) to create an oxygen-rich environment inside the reduction box (2).

2. The wastewater treatment device based on the sulfur cycle according to claim 1, characterized in that: The processing central mechanism further includes a screen (142) and a buoyancy component (144). The limiting block (141) is fixedly installed on the side wall of the movable component (14). A limiting groove (101) is opened on the inner wall of the processing box (1). The limiting block (141) is slidably connected inside the limiting groove (101). The buoyancy component (144) is fixedly installed at the bottom of the movable component (14). The screen (142) is fixedly installed inside the movable component (14).

3. The wastewater treatment device based on the sulfur cycle according to claim 2, characterized in that: The processing box (1) is fixedly mounted on the top of the first servo motor (12), and the output end of the first servo motor (12) is fixedly mounted with a gear shaft (121). The threaded rod (15) is fixedly mounted with a gear ring (122) on its side wall, and the gear shaft (121) meshes with the gear ring (122).

4. The wastewater treatment device based on the sulfur cycle according to claim 2, characterized in that: A stirring element (156) is fixedly installed on the side wall of the threaded rod (15). Several stirring elements (156) are provided, and a fixing ring (157) is fixedly installed on the side wall of several stirring elements (156). The fixing ring (157) is in contact with the inner wall of the processing box (1).

5. A wastewater treatment device based on a sulfur cycle according to claim 2, characterized in that: The threaded rod (15) has a flow groove (151) inside, and a through hole (153) is provided on the side of the flow groove (151) near the bottom, and the through hole (153) passes through the threaded rod (15).

6. The wastewater treatment device based on the sulfur cycle according to claim 5, characterized in that: The environmental control mechanism includes a first gas supply pipe (25), a second gas supply pipe (32), a second electric push rod (321), and a baffle (322). The first gas supply pipe (25) is fixedly installed inside the reduction box (2). Several air outlets (251) are opened on one side of the first gas supply pipe (25). The second gas supply pipe (32) is fixedly installed inside the storage box (3). One end of the second gas supply pipe (32) is connected to the flow channel (151). The second electric push rod (321) is fixedly installed on the inner wall of the second gas supply pipe (32). The baffle (322) is fixedly installed at the output end of the second electric push rod (321). The baffle (322) fits into the second gas supply pipe (32). A transmission device (34) is fixedly installed on one side of the storage box (3). A grinding roller (341) is fixedly installed at the connecting end of the transmission device (34).

7. A wastewater treatment device based on a sulfur cycle according to claim 6, characterized in that: The environmental control mechanism also includes an exhaust pipe (31), a fourth servo motor (311), a movable rod (312), a limit rod (313), a pressure plate (314), a mounting shaft (315), and a valve disc (316). The exhaust pipe (31) is fixedly installed on the top of the processing box (1) and is connected to the processing box (1). The mounting shaft (315) is fixedly installed inside the exhaust pipe (31). The valve disc (316) is rotatably connected to the side wall of the mounting shaft (315) via a torsion spring. The limiting rod (313) is fixedly installed on the inner wall of the exhaust pipe (31), the pressure plate (314) is slidably connected to the side wall of the limiting rod (313), the movable rod (312) is installed inside the exhaust pipe (31), the fourth servo motor (311) is fixedly installed on the side wall of the exhaust pipe (31), the movable rod (312) is fixedly installed at the output end of the fourth servo motor (311), the movable rod (312) is rotatably connected to the inside of the exhaust pipe (31) through the fourth servo motor (311), the movable rod (312) is located inside the pressure plate (314), and the valve disc (316) has an inclined surface at the top.

8. The wastewater treatment device based on the sulfur cycle according to claim 1, characterized in that: The reduction conveying mechanism includes a second servo motor (231), a conveying rod (232), a third servo motor (241), a connecting pipe (242), a rotating shaft (243), a spiral filter element (244), a drain pipe (245), and a feed pipe (33). The first conveying pipe (23) is fixedly installed at the bottom of the reduction tank (2). The second servo motor (231) is fixedly installed at one end of the first conveying pipe (23). The conveying rod (232) is rotatably connected inside the first conveying pipe (23), and one end of the conveying rod (232) is fixedly installed at the output end of the second servo motor (231). The third servo motor (241) is fixedly installed at the top of the second conveying pipe (24). The rotating shaft (243) is fixedly installed at the output end of the third servo motor (241). The rotating shaft (243) is rotatably connected inside the second conveying pipe (24) through the third servo motor (241). The spiral filter element (244) is fixedly installed on the rotating shaft (243). The drain pipe (245) is fixedly installed at the bottom of the second conveying pipe (24), the connecting pipe (242) is fixedly installed at the top of the second conveying pipe (24), the feed pipe (33) is fixedly installed at the top of the storage box (3), and one end of the connecting pipe (242) is connected to the feed pipe (33).

9. The process of a wastewater treatment device based on a sulfur cycle according to any one of claims 1-8, characterized in that: Specifically, the following steps are included: S1: When in use, the wastewater to be treated is poured in through the inlet pipe (11). The wastewater flows through the inlet pipe (11) and the first corrugated telescopic pipe (111) to the bottom of the movable part (14). Then, nitrogen is delivered to the inside of the flow tank (151) through the second gas delivery pipe (32) to form an anaerobic environment inside the treatment box (1), thereby ensuring the reaction between elemental sulfur and wastewater. During the nitrogen delivery process, the air circulation inside the second gas delivery pipe (32) drives the elemental sulfur powder particles inside the storage box (3) to flow into the flow tank (151) together, and then blown out through the through hole (153) inside the flow tank (151) into the liquid inside the treatment box (1), so that the elemental sulfur powder particles inside the storage box (3) can be better mixed with the wastewater inside the treatment box (1). S2: After processing, the first servo motor (12) can be used to control the rotation of the gear shaft (121). The rotation of the gear shaft (121) can drive the gear ring (122) and the threaded rod (15) to rotate. Thus, the first servo motor (12) can control the rotation of the threaded rod (15). The first electric push rod (147) moves to drive the moving plate (148) to move, so that the threaded part (149) on one side of the moving plate (148) fits with the side wall of the threaded rod (15). During the rotation of the threaded rod (15), the movable part (14) can be driven to move inside the processing box (1). As the movable part (14) moves downward inside the processing box (1), the liquid flows through the screen (142) to the top of the movable part (14). The heavy metal impurities at the separation point in the liquid are isolated at the bottom of the movable part (14) and finally compressed at the bottom of the processing box (1). During this process, the delivery pump (21) can pump the treated water inside the treatment tank (1) into the reduction tank (2) through the connecting pipe (22). The second corrugated telescopic pipe (221) can ensure that the connecting pipe (22) can always be connected to the moving part (14) during its movement. The connecting rod (224) can keep one end of the second corrugated telescopic pipe (221) at a distance from the fixed hole (143) during the movement of the moving part (14), so that the connecting pipe (22) will not suck in the sediment when it draws out the liquid inside the treatment tank (1) through the second corrugated telescopic pipe (221). S3: By setting the first gas supply pipe (25), oxygen can be supplied to the inside of the reduction tank (2), so that an oxygen-rich environment is formed inside the reduction tank (2), thereby oxidizing H2S in the treated liquid into elemental sulfur. By rotating the conveying rod (232), the liquid inside the first conveying pipe (23) can be transported, and the liquid is transported through the first conveying pipe (23) to the second conveying pipe (24). By setting the third servo motor (241), the rotation of the rotating shaft (243) can be controlled. The rotation of the rotating shaft (243) can drive the spiral filter element. (244) is rotated so that the elemental sulfur formed during the reduction process inside the reduction tank (2) and the first conveying pipe (23) can be conveyed through the spiral filter (244). The filtered water can fall down through the spiral filter (244) into the drain pipe (245) and then be discharged. After that, the elemental sulfur conveyed by the spiral filter (244) can be returned to the storage tank (3) through the connecting pipe (242) and the feed pipe (33) to realize the recycling of elemental sulfur.

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