Chain control cleaning water tank for high-salinity wastewater treatment in coal chemical industry

Abstract

The present application relates to wastewater treatment technical field, and disclose a kind of coal chemical industry high-salinity wastewater treatment is used to chain control cleaning water tank, including sewage treatment tank, the inner chamber top of sewage treatment tank is equipped with rough filtration unit, the inner chamber middle part of sewage treatment tank is equipped with membrane treatment unit, the inner chamber bottom of sewage treatment tank is equipped with output unit, the upside of membrane treatment unit is provided with the offset flush component for flushing the internal porosity of membrane treatment unit using the pure water after processing, and the pure water after disinfection is accelerated under the guidance of inclined guide block and arc guide block, to form high-pressure high-speed water, and when water is ejected, push the swastika rotating piece to rotate, so that high-speed high-pressure water obtains rotation tendency, to be in-depth porosity inside, high-pressure high-speed water can more effectively penetrate the porosity structure of membrane, in-depth to membrane inside cleaning, since the pressure and speed of water are higher, its energy attenuation is slower, can form effective cleaning effect in the tiny porosity of membrane.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry. Background Technology

[0002] The interlocking control cleaning water tank is a device used for treating high-salt wastewater in the coal chemical industry. It can ensure the stability and efficiency of the cleaning process, effectively remove salt and other pollutants from the wastewater, and improve wastewater treatment efficiency and water quality.

[0003] However, existing interlocked control cleaning water tanks still have some problems: Firstly, while membrane filtration technology can effectively separate salt and pollutants in the treatment of high-salt wastewater, its susceptibility to clogging has become a bottleneck. Existing technologies utilize water vapor generated during the crystallization and evaporation process to drive the brushes to rotate and generate bubbles. The mechanical action of the brushes and the impact of the bursting bubbles clean the membrane surface. However, this method is not suitable for all scenarios because crystallization and evaporation are not essential steps, and water vapor cannot play a cleaning role. Therefore, the membrane clogging problem still exists. Although long-term brush cleaning can alleviate clogging, it will cause the membrane to gradually wear down, thereby reducing its lifespan and separation efficiency. Secondly, brush bristles and bursting bubbles cannot penetrate deep into the membrane's pores. The physical impact of bursting bubbles primarily acts on the membrane surface, where its energy rapidly decays, making it difficult to penetrate the membrane's pore structure. Furthermore, membrane pores are typically very small, ranging from nanometers to micrometers in diameter. The shock waves generated by bursting bubbles are insufficient to create an effective cleaning effect within these tiny pores. While brush bristles can reach the membrane surface, their depth of action is limited, failing to penetrate into the membrane's internal pores. The complex pore structure of the membrane makes it difficult for brush bristles to enter these tiny pores, resulting in poor cleaning performance. This further leads to the accumulation of pollutants inside the membrane, reducing permeability and causing secondary pollution, ultimately affecting the final water quality.

[0004] Secondly, after the wastewater undergoes coarse filtration, a coagulant is needed to combine with the wastewater to generate flocs, which further remove suspended solids and colloidal particles from the wastewater. To accelerate the mixing rate, existing technologies employ stirring structures to agitate the wastewater. However, stirring not only disrupts the internally settled sludge, causing instability in the sludge layer and affecting subsequent solid-liquid separation, but also breaks up the flocs, reducing the flocculation effect and consequently impacting wastewater treatment efficiency and water quality. Furthermore, the continuous accumulation of sludge inside reduces the mixing space between the supernatant and the flocculant, further exacerbating the problem of uneven mixing. This uneven mixing not only reduces the efficiency of flocculant use but also leads to uneven floc formation, affecting subsequent sedimentation and filtration effects.

[0005] Therefore, this invention proposes an interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry. Summary of the Invention

[0006] The purpose of this invention is to provide an interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry, comprising a wastewater treatment tank, a coarse filtration unit installed at the top of the inner cavity of the wastewater treatment tank, a membrane treatment unit installed in the middle of the inner cavity of the wastewater treatment tank, an output unit installed at the bottom of the inner cavity of the wastewater treatment tank, an offset flushing assembly for flushing the internal pores of the membrane treatment unit with treated pure water on the upper side of the membrane treatment unit, the offset flushing assembly comprising a plurality of inclined guide blocks that accelerate and pressurize the pure water through their own guiding action, the plurality of inclined guide blocks being arranged alternately, each inclined guide block having inclined surfaces on both sides, and each inclined surface having an opposite inclination direction, and a swastika rotating component being provided below the plurality of inclined guide blocks, which allows the pressurized and accelerated pure water to penetrate deep into the pores through its own rotation.

[0008] Preferably, the offset flushing assembly further includes two flushing pipes, which are symmetrically and fixedly connected to the interior of the wastewater treatment tank and located above the membrane treatment unit. Each flushing pipe has a number of arc-shaped guide blocks arranged linearly and equidistantly and staggeredly inside. The number of inclined guide blocks are symmetrically and fixedly connected to the inner wall of the flushing pipe. A buffer arc block is fixedly connected to one end of the two flushing pipes that is close to each other and located at the bend of the inner wall. Each flushing pipe has a nozzle installed at the end near the membrane treatment unit.

[0009] Preferably, each of the flushing pipes is fixedly connected to a support member at one end near the nozzle, and a reciprocating screw is fixedly connected to the bottom of the support member. An internally threaded bushing is threadedly connected to the outer surface of the reciprocating screw, and the internal thread of the internally threaded bushing is compatible with the external thread of the reciprocating screw. The outer surface of the internally threaded bushing is fixedly connected to the outer surface of the swastika rotating component. The swastika rotating component has several diversion holes that penetrate the surface and are arranged in a ring at equal intervals.

[0010] Preferably, a convection mixing assembly for preventing floc fragmentation is provided above the membrane treatment unit. The convection mixing assembly includes a mixing chamber, which is installed inside the wastewater treatment tank and located between the coarse filtration unit and the membrane treatment unit. A mixing motor is installed on the top of the mixing chamber, and the output shaft of the mixing motor passes through the top of the mixing chamber. A first tooth is fixedly connected to the outer surface of the output shaft of the mixing motor, and a second tooth is fixedly connected to the outer surface of the output shaft of the mixing motor below the first tooth.

[0011] Preferably, the convection mixing assembly further includes an active disk, which is rotatably connected to the top of the inner cavity of the mixing chamber. The active disk has several straight grooves arranged in a ring at equal intervals through its surface. Several round teeth that mesh with the first missing tooth are fixedly connected to the surface of the active disk. A driven disk is rotatably connected inside the active disk, and the edge of the active disk and the driven disk in contact is made of nylon. The driven disk has several curved grooves arranged in a ring at equal intervals through its surface. Several straight teeth that mesh with the second missing tooth are fixedly connected to the side of the driven disk near the mixing motor.

[0012] Preferably, a return spring is fixedly connected to the outer surface of the active disk, and the side of the return spring away from the active disk is fixedly connected to the straight teeth on the surface of the driven disk. A hybrid component is slidably connected inside each of the curved grooves and straight grooves. The hybrid component is divided into a straight rod and an arc block. The straight rod is slidably connected inside the curved groove and the straight groove, and the arc block is fixedly connected to the bottom of the straight rod. A scraper is fixedly connected to the side of each arc block that is close to each other, and several inclined blocks are fixedly connected to the bottom of each scraper.

[0013] Preferably, the inclined guide blocks located above and below are tangent to the outer surface of the arc-shaped guide block collinear with the side of the inclined guide block closest to the center of the sewage treatment tank, and the inclined guide blocks located above and below are tangent to the outer surface of the arc-shaped guide block opposite to the side of the inclined guide block with the side furthest from the center of the sewage treatment tank.

[0014] Preferably, the bottom of the mixing chamber is symmetrically fixedly connected with a fixed base, the mixing motor is electrically controlled to start and stop by an external controller, the contact point between each scraper and the arc block of the mixing component is different, and the inclined blocks at the bottom of the scraper are all tilted toward the side closer to the arc block.

[0015] Preferably, the buffer blocks are all made of rubber, and the flushing pipes are all fixedly connected to the inside of the fixing base.

[0016] Preferably, the wastewater treatment tank has a feeding port at the top, the coarse filtration unit has a dispensing mechanism installed inside, and the output unit has a disinfection mechanism above it. The dispensing mechanism and the disinfection mechanism are both electrically controlled to start and stop by an external controller.

[0017] Preferably, the dispensing mechanism includes a dispensing pipe, a water pump, a spray head, and two transfer pipes.

[0018] Preferably, the disinfection mechanism includes a disinfection chamber, an online water quality monitor, and a disinfectant dispensing machine.

[0019] Preferably, the output unit includes a four-way pipe, a solenoid valve, two water pumps, and two sets of water distribution pipes.

[0020] Preferably, the coarse filtration unit includes a coarse filter chamber, a coarse screen, and a funnel.

[0021] Preferably, the membrane treatment unit includes a reverse osmosis membrane and a support container.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. The disinfected purified water is accelerated by the inclined and arc-shaped guide blocks, forming high-pressure, high-speed water. When the water is sprayed out, it drives the swastika-shaped rotating component to rotate, giving the high-speed, high-pressure water a rotational tendency, thus penetrating deep into the pores. First, the high-pressure, high-speed water can more effectively penetrate the membrane's pore structure and reach deep into the membrane for cleaning. Due to the high pressure and speed of the water, its energy decays slowly, which can form an effective cleaning effect in the membrane's tiny pores. Second, the rotational tendency of the water makes the cleaning effect more uniform, covering all corners of the membrane and avoiding the problem of limited depth of action when using a brush. In addition, the impact force of the high-pressure, high-speed water can more thoroughly remove contaminants inside the membrane, reduce the accumulation of contaminants, and improve the membrane's permeability. Compared to existing technologies, which rely on water vapor generated by crystallization evaporation and the mechanical action of brushes, this method is not suitable for all scenarios and has limited cleaning effect. In contrast, the offset flushing component uses high-pressure, high-speed water to penetrate deep into the pores for cleaning, making it suitable for various scenarios and providing better cleaning results. Furthermore, the bubble bursting and brush cleaning methods of existing technologies cannot penetrate deep into the membrane pores, leading to the accumulation of contaminants inside the membrane and reducing permeability. The offset flushing component, on the other hand, uses high-pressure, high-speed water to penetrate deep into the pores for cleaning, which can more thoroughly remove contaminants from inside the membrane and reduce the accumulation of contaminants. Among them, the flushing pipes on both sides will periodically flush the reverse osmosis membrane on one side due to the periodic operation of the second water pump. Based on the resilience of the reverse osmosis membrane itself, the periodic flushing of the reverse osmosis membrane with high-pressure and high-speed water will not damage the reverse osmosis membrane and will extend its service life. Among them, when water flows and encounters obstacles, it will generate turbulence, and turbulence can more effectively agitate and clean up pollutants inside the pores, thus improving the cleaning effect; Among them: the swastika rotating part rotates when impacted by high-speed water flow, and the several diversion holes on its surface can divert the water flow, thereby reducing the speed of part of the water flow and preventing excessive rinsing; Among them, the planar swastika rotating component reduces the flow around the curved surface, thereby driving the water flow to act on the interior of the reverse osmosis membrane and improving cleaning efficiency. In addition, the planar structure is simple in design, has low manufacturing and maintenance costs, and is not prone to mechanical wear. Specifically, by having the water flow come into contact with the reciprocating swastika-shaped rotating component, the water flow acquires different rotational trends, thereby allowing the water flow to cover and rinse the reverse osmosis membrane. Among them, the design of the staggered arrangement of inclined guide blocks and the staggered arrangement of arc-shaped guide blocks causes the water flow to be guided by the inclined guide blocks and divided into two streams. The split water will continuously merge with the main stream and accelerate, thereby improving energy utilization efficiency. Among them: the setting of buffer arc blocks can prevent high-pressure, high-speed water flow from continuously impacting and damaging the flushing pipe; Specifically, since the two sides of the inclined guide block are tangent to the arc-shaped guide block, this design optimizes the fluid movement path, making the water flow smoother, reducing water flow resistance, and improving cleaning efficiency.

[0023] 2. The active disk driven by the mixing motor slowly rotates the driven disk and the mixing component. The mixing component moves back and forth due to the elasticity of the return spring and the meshing relationship between the driven disk and the second tooth. The overall slow movement design avoids the shear force and eddies generated by traditional stirring structures, reducing the damage to flocs and the disorder of the sludge layer. Secondly, the mixing component can effectively disturb the wastewater and flocculant during the movement, thereby making the flocculant and wastewater fully mixed and improving the flocculant utilization efficiency. In addition, the slow movement and reciprocating movement design reduces the generation of eddies and turbulence, avoids the instability of the sludge layer, and improves the sedimentation effect. Compared with existing technologies, existing technologies use stirring structures for stirring, which not only causes the internally settled sludge to become disordered again, leading to an unstable sludge layer and affecting the subsequent solid-liquid separation effect, but also breaks up the flocs, reducing the flocculation effect and thus affecting the efficiency and water quality of wastewater treatment. In contrast, the convection mixing component, through its slow and reciprocating movement design, avoids the shear force and eddies generated during stirring, reduces the damage to flocs and the disorder of the sludge layer, and improves the flocculation effect and the efficiency of wastewater treatment. Secondly, in existing technologies, sludge continuously accumulates inside, resulting in a smaller mixing space between the supernatant and flocculant, which further exacerbates the problem of uneven mixing. However, the reciprocating movement design of the mixing component makes the mixing process more uniform, avoids the continuous accumulation and clogging of sludge, and improves the utilization efficiency of flocculant. In addition, the eddies and turbulence generated during the stirring process in existing technologies may roll up the sludge at the bottom, making the sludge layer unstable and affecting the sedimentation effect. However, the convection mixing component reduces the generation of eddies and turbulence through its slow and reciprocating movement design, thus avoiding the instability of the sludge layer. Among them, the reset spring, driven by the mixing motor and its own elasticity, drives the mixing component to move and reset, causing the wastewater to mix and convect, further enhancing the mixing effect. Compared with the traditional stirring method, it improves the efficiency of flocculant use, reduces eddies and turbulence, and avoids instability of the sludge layer. Among them, the mixing component contacts the bottom of the mixing chamber during movement, which effectively prevents sludge from accumulating in the middle, avoids the supernatant and flocculant mixing space from becoming smaller, solves the problem of uneven mixing, and improves the efficiency and water quality of wastewater treatment; Specifically, since the contact points between each scraper and the arc block of the mixing component are different, and the bottom inclined block is tilted towards the side closer to the arc block, the scraper can carry away the sludge between the mixing components as the mixing component moves, further reducing the accumulation and clogging problems of sludge. Attached Figure Description

[0024] Figure 1 This is a frontal three-dimensional schematic diagram of the main structure of the present invention; Figure 2 This is a rear-view perspective view of the main structure of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the main structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged 3D schematic diagram of the structure at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged 3D schematic diagram of the structure at point B in the middle; Figure 6 This is a cross-sectional perspective view of the offset flushing assembly of the present invention; Figure 7 For the present invention Figure 6 Enlarged 3D schematic diagram of the structure at point C; Figure 8 This is a three-dimensional schematic diagram of the convection mixing component of the present invention; Figure 9 This is a three-dimensional schematic diagram showing the connection position between the active disk and the driven disk of the present invention; Figure 10 This is a partial three-dimensional schematic diagram of the convection mixing component of the present invention.

[0025] In the picture: 11. Wastewater treatment tank; 12. Coarse filtration unit; 13. Membrane treatment unit; 14. Output unit; 2. Offset flushing assembly; 21. Flushing pipe; 22. Arc-shaped guide block; 23. Inclined guide block; 24. Buffer arc block; 25. Support component; 26. Reciprocating lead screw; 27. Internal threaded bushing; 28. Swastika rotating component; 29. ​​Diverter hole; 3. Convection mixing assembly; 31. Mixing chamber; 32. Mixing motor; 33. First missing tooth; 34. Second missing tooth; 35. Driving disc; 36. Linear groove; 37. Driven disc; 38. Curved groove; 39. Return spring; 310. Mixing component; 311. Scraper. Detailed Implementation

[0026] 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 protection scope of the present invention.

[0027] Please see Figures 1 to 10 This invention provides an embodiment: an interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry, comprising a wastewater treatment tank 11, a coarse filtration unit 12 installed at the top of the inner cavity of the wastewater treatment tank 11, a membrane treatment unit 13 installed in the middle of the inner cavity of the wastewater treatment tank 11, an output unit 14 installed at the bottom of the inner cavity of the wastewater treatment tank 11, and an offset flushing component 2 provided on the upper side of the membrane treatment unit 13 for flushing the internal pores of the membrane treatment unit 13 with treated pure water. The offset flushing component 2 includes several inclined guide blocks 23 that accelerate and pressurize the pure water through their own guiding action. The several inclined guide blocks 23 are arranged in an alternating manner, and both sides of each inclined guide block 23 are set as inclined surfaces, and the inclination directions of each inclined surface are set in opposite directions. Below the several inclined guide blocks 23, a swastika rotating component 28 is provided, which allows the pressurized and accelerated pure water to penetrate into the pores through its own rotation.

[0028] The offset flushing assembly 2 also includes two flushing pipes 21. The two flushing pipes 21 are symmetrically fixedly connected to the inside of the sewage treatment tank 11 and located above the membrane treatment unit 13. Inside each flushing pipe 21, several arc-shaped guide blocks 22 are linearly and equidistantly arranged and fixedly connected. Several inclined guide blocks 23 are symmetrically fixedly connected to the inner wall of the flushing pipe 21. At the end of the two flushing pipes 21 that is close to each other and located at the bend of the inner wall, a buffer arc block 24 is fixedly connected. Each flushing pipe 21 has a nozzle installed at the end near the membrane treatment unit 13.

[0029] Each flushing pipe 21 is fixedly connected to a support 25 at one end near the nozzle. A reciprocating screw 26 is fixedly connected to the bottom of the support 25. An internal threaded bushing 27 is threadedly connected to the outer surface of the reciprocating screw 26. The internal thread of the internal threaded bushing 27 is compatible with the external thread of the reciprocating screw 26. The outer surface of the internal threaded bushing 27 is fixedly connected to the outer surface of the swastika rotating component 28. The swastika rotating component 28 is perforated and arranged in a ring with several diversion holes 29.

[0030] A convection mixing assembly 3 for preventing the flocs from breaking apart is provided above the membrane treatment unit 13. The convection mixing assembly 3 includes a mixing chamber 31, which is installed inside the wastewater treatment tank 11 and located between the coarse filtration unit 12 and the membrane treatment unit 13. A mixing motor 32 is installed on the top of the mixing chamber 31. The output shaft of the mixing motor 32 passes through the top of the mixing chamber 31. A first tooth 33 is fixedly connected to the outer surface of the output shaft of the mixing motor 32. A second tooth 34 is fixedly connected to the outer surface of the output shaft of the mixing motor 32 and below the first tooth 33.

[0031] The convection mixing assembly 3 also includes an active disk 35, which is rotatably connected to the top of the inner cavity of the mixing chamber 31. The active disk 35 has a number of straight grooves 36 arranged in a ring at equal intervals through its surface. A number of round teeth that mesh with the first missing tooth 33 are fixedly connected to the surface of the active disk 35. A driven disk 37 is rotatably connected inside the active disk 35. The edge of the active disk 35 that contacts the driven disk 37 is made of nylon. The driven disk 37 has a number of curved grooves 38 arranged in a ring at equal intervals through its surface. A number of straight teeth that mesh with the second missing tooth 34 are fixedly connected to the side of the driven disk 37 near the mixing motor 32.

[0032] A return spring 39 is fixedly connected to the outer surface of the active disk 35. The side of the return spring 39 away from the active disk 35 is fixedly connected to the straight teeth on the surface of the driven disk 37. A hybrid component 310 is slidably connected inside each curved groove 38 and straight groove 36. The hybrid component 310 is divided into a straight rod and an arc block. The straight rod is slidably connected inside the curved groove 38 and straight groove 36. The arc block is fixedly connected to the bottom of the straight rod. A scraper 311 is fixedly connected to the side of each arc block that is close to each other. Several inclined blocks are fixedly connected to the bottom of the scraper 311.

[0033] The upper and lower inclined guide blocks 23 are tangent to the outer surface of the arc-shaped guide block 22 on the side closest to the center of the sewage treatment tank 11, and the upper and lower inclined guide blocks 23 are tangent to the outer surface of the arc-shaped guide block 22 on the opposite side on the side furthest from the center of the sewage treatment tank 11.

[0034] The bottom of the mixing chamber 31 is symmetrically fixed with a fixed base. The mixing motor 32 is electrically controlled to start and stop by an external controller. The contact point between each scraper 311 and the arc block of the mixing component 310 is different. The inclined blocks at the bottom of the scraper 311 are all tilted towards the side closer to the arc block.

[0035] All buffer blocks 24 are made of rubber, and all flushing pipes 21 are fixedly connected to the inside of the fixed base.

[0036] The wastewater treatment tank 11 has a feeding port on the top, the coarse filtration unit 12 has a dispensing mechanism installed inside, and the output unit 14 has a disinfection mechanism installed above it. The dispensing mechanism and the disinfection mechanism are both electrically controlled to start and stop by an external controller.

[0037] The dispensing mechanism includes a dispensing pipe, a water pump, a spray head, and two transfer pipes, namely transfer pipe one and transfer pipe two. The dispensing pipe passes through the top of the sewage treatment tank 11, and the bottom of the dispensing pipe is fixedly connected to the inside of the mixing chamber 31. The water pump is installed on the side wall of the sewage treatment tank 11. Transfer pipe one is fixedly connected to the input end of water pump one, and transfer pipe two is fixedly connected to the output end of water pump one. The end of transfer pipe two away from water pump one is fixedly connected to the bottom of the mixing chamber 31. The spray head is installed at the end of transfer pipe two away from water pump one.

[0038] The disinfection system includes a disinfection chamber, an online water quality monitor, and a disinfectant dispenser. The disinfection chamber is installed inside the wastewater treatment tank 11 and below the membrane treatment unit 13. The online water quality monitor is installed on the inner wall of the disinfection chamber. The disinfectant dispenser is installed on the inner wall of the wastewater treatment tank 11, with its input end penetrating through the outer wall of the wastewater treatment tank 11 and its output end located inside the disinfection chamber.

[0039] The output unit 14 includes a four-way pipe, a solenoid valve, two water pumps, and two sets of water distribution pipes. The four-way pipe is installed at the bottom of the disinfection chamber, the solenoid valve is installed inside the four-way pipe, and the two water pumps are symmetrically installed on the outer wall of the sewage treatment tank 11. The water distribution pipes are divided into water distribution pipe one and water distribution pipe two. Water distribution pipe one is fixedly connected between the four-way pipe and the input end of water pump two, and water distribution pipe two is fixedly connected between the output end of water pump two and the flushing pipe 21. The two solenoid valves are programmed to control the alternating working state of the two water pumps, that is, one water pump is in the working state while the other water pump remains in the non-working state.

[0040] The coarse filtration unit 12 includes a coarse filter chamber, a coarse screen, and a funnel. The coarse filter chamber is installed at the top of the inner cavity of the sewage treatment tank 11, the coarse screen is installed at the top of the coarse filter chamber, and the funnel is installed inside the coarse filter chamber, with the top of the funnel completely covering the coarse screen. The bottom of the funnel is connected to the mixing chamber 31.

[0041] The membrane treatment unit 13 includes a reverse osmosis membrane and a support bucket. The support bucket is fixedly connected to the inner wall of the sewage treatment tank 11. The reverse osmosis membrane is installed on the top of the support bucket, and the bottom of the support bucket is connected to the disinfection chamber.

[0042] The bottom of the four-way pipe can be connected to a recycling pipe for the reuse or discharge of pure water.

[0043] The working principle of the present invention, based on the above implementation, is as follows: The following is the initial state: the internal threaded bushings 27 are all located in the middle of the reciprocating screw 26, the swastika rotating parts 28 are in an inclined state, the mixing parts 310 are all located in the curved groove 38 and the straight groove 36 on the side close to the center of the driving disc 35, the return spring 39 is not in a stretched state, and the scraping plates 311 are in contact with each other.

[0044] The following are the specific steps for operation: Among them, the treatment of high-salinity wastewater: like Figures 1 to 3 As shown, the operator can use an external pipe to introduce wastewater into the coarse filtration unit 12 through the feed port at the top of the sewage treatment tank 11. At this time, the wastewater undergoes preliminary filtration through the coarse screen and funnel to remove large particulate impurities before entering the feeding mechanism.

[0045] At this point, the operator adds flocculant to the dosing pipe. After entering the mixing chamber 31, the flocculant reacts with the wastewater, forming supernatant, flocs, and precipitated sludge. The operator then activates water pump one and the disinfection mechanism via an external controller. The supernatant flows down through water pump one and undergoes deep filtration through membrane treatment unit 13, removing fine impurities and salts. The filtered water then enters the disinfection chamber, undergoes disinfection treatment and water quality monitoring, and is finally discharged through output unit 14. Among these, the rinsing of the reverse osmosis membrane includes: like Figures 3 to 7 as well as Figure 10 As shown, during the treatment of high-salt wastewater, the reverse osmosis membrane encounters a large amount of impurities such as salt, organic matter, microorganisms, and metal ions. These impurities accumulate on the membrane surface and within the membrane pores as the wastewater passes through, causing pore blockage and reducing the membrane's permeability and desalination efficiency. To solve the problem of reverse osmosis membrane blockage, the operator can electrically control the second water pump to start and open the solenoid valve via an external controller to begin flushing the reverse osmosis membrane. At this time, the solenoid valve in the four-way pipe at the bottom of the disinfection chamber opens, and a portion of the disinfected pure water is drawn by the second water pump and transported to the flushing pipe 21 through the first water distribution pipe.

[0046] After the purified water enters the flushing pipe 21, it first comes into contact with the inclined guide block 23. Since the inclined guide block 23 has inclined surfaces on both sides, the water flow will be divided into two streams when it comes into contact with the inclined guide block 23. The water flow at the top of the inclined guide block 23 will flow towards the top of the next curved guide block 22 under the guidance of the top and side inclined walls of the inclined guide block 23 and the arc-shaped guide block 22 that is collinear with it. The water diverted by the first inclined guide block 23 will be diverted again when it encounters the next inclined guide block 23.

[0047] Similarly, the water flow above mixes with and accelerates the water that was first diverted. Since the water flows in the same direction and the pure water is continuously diverted, the speed of the pure water is greatly increased.

[0048] When the purified water comes into contact with the buffer block 24, it is guided to the bottom of the flushing pipe 21 and sprayed out from the nozzle. The high-speed, high-pressure water sprayed out will come into contact with the swastika rotating component 28. Since the swastika rotating component 28 is swastika-shaped, the impact force of the water flow generates a tangential force, causing the swastika rotating component 28 to start rotating. In turn, the rotation of the swastika rotating component 28 drives the internal threaded bushing 27 to rotate.

[0049] Because the internal threaded bushing 27 is threadedly connected to the reciprocating screw 26 and the threads are compatible with each other, the threaded connection allows the internal threaded bushing 27 to move axially along the reciprocating screw 26 while rotating. The thread design of the reciprocating screw 26 allows the internal threaded bushing 27 to move back and forth axially when rotating. Finally, when the water flows, it will generate turbulence when it encounters the swastika rotating part 28. The turbulence can more effectively agitate and clean the contaminants inside the pores, improving the cleaning effect. At the same time, the turbulence can transfer the energy of the water flow to deeper pores, making the cleaning more thorough.

[0050] Furthermore, the swastika-shaped rotating component 28 moves back and forth while rotating, which gives the water flow different rotational trends. This rotational trend helps the water flow penetrate into the pores. When the swastika-shaped rotating component 28 moves, the water flow and its contact point are in dynamic contact, so the water flow gets different rotational trends at different positions, which further enhances the coverage and cleaning effect of the water flow. Since the swastika-shaped rotating component 28 is a planar structure, the planar structure reduces the flow around the curved surface, making the water flow smoother and improving the cleaning efficiency. Secondly, the planar structure design makes it easier for the water flow to penetrate into the pores, resulting in a better cleaning effect. Finally, the planar structure design is simple, with low manufacturing and maintenance costs, and is not prone to mechanical wear.

[0051] During the process described above, some of the water flow is diverted onto the surface of the reverse osmosis membrane through the diversion hole 29. This diversion effect makes the water flow more evenly distributed on the surface of the reverse osmosis membrane, thus improving the cleaning effect.

[0052] Since the two pumps are operated alternately through programming control, when one pump stops working, the other pump starts working and flushes the other side of the reverse osmosis membrane. Because the reverse osmosis membrane itself is resilient, the high-speed, high-pressure water will not damage the reverse osmosis membrane through periodic flushing.

[0053] Among these measures is to prevent the flocs from being broken down. like Figure 3 and Figure 4 as well as Figure 8 and Figure 9As shown, in the above process, flocculants and wastewater will mix to form flocs and sludge. The formation of these flocculants and sludge helps to remove suspended solids and colloidal substances from wastewater. However, as sludge is generated, the mixing space between wastewater and flocculants will gradually decrease, and there will also be wastewater in the sludge that has not been completely mixed with the flocculant.

[0054] To prevent the flocs from being broken during the treatment process, the operator uses an external controller to electrically start the mixing motor 32, thereby effectively protecting the flocs and ensuring uniform mixing of the sludge.

[0055] Specifically, the output shaft of the mixing motor 32 drives the first missing tooth 33 and the second missing tooth 34 on it to rotate. The rotation of the first missing tooth 33 drives the active disc 35 that meshes with it. Since the first missing tooth 33 has a small number of teeth, the active disc 35 rotates slowly. This slow rotation helps to avoid generating excessive shear force on the flocs, thereby preventing the flocs from being broken. The contact part between the active disc 35 and the driven disc 37 is made of rubber, so the friction between the two is relatively large. That is, the rotation of the active disc 35 will drive the driven disc 37 to rotate synchronously. At this time, the active disc 35, the driven disc 37 and the mixing component 310 move synchronously. At the same time, the active disc 35 drives the mixing component 310 to rotate slowly. Since the mixing component 310 can fit against the bottom of the mixing chamber 31, the slow rotation helps to evenly distribute the sludge and avoid excessive local concentration, thereby preventing the flocs from being broken.

[0056] Simultaneously, the second missing tooth 34 drives the driven disk 37, which meshes with it, to rotate. The rotation of the driven disk 37 causes the mixing element 310 inside the straight groove 36 and the curved groove 38 to move away from the center of the active disk 35. As a result, the mixing element 310 expands. This expansion helps to increase the mixing space, promote the uniform distribution of sludge, and prevent the flocs from being subjected to excessive pressure in local areas. Since the second missing tooth 34 is an incomplete gear, as the second missing tooth 34 rotates, it no longer meshes with the driven disk 37. Under the elastic force of the return spring 39's own elastic contraction, the return spring 39 pulls the driven disk 37 to reset, thereby driving the mixing element 310 to reset. This reset mechanism helps to maintain the stability of the mixing space and prevents the flocs from being subjected to excessive impact during the mixing process.

[0057] In addition, the surface of the mixing component 310 is provided with scraper plates 311. The contact point between each scraper plate 311 and the arc block of the mixing component 310 is different. The inclined blocks at the bottom of the scraper plate 311 are all tilted towards the side closer to the arc block. Therefore, the scraper plate 311 helps to remove the sludge in the center, avoids excessive accumulation of sludge in the central area, and provides a certain space for the mixing of sewage and flocculant.

[0058] When the sludge inside the mixing chamber 31 is relatively full, the sludge has been pushed to the surrounding area by the mixing component 310. Therefore, the operator can open the wastewater treatment tank 11 and collect and treat the sludge inside the mixing chamber 31.

[0059] Through the coordinated operation of the mixing motor 32, the first notched tooth 33, the second notched tooth 34, the driving disc 35, the driven disc 37, the mixing component 310, and the scraper 311, the convection mixing assembly 3 can effectively prevent the flocs from being broken up during the treatment process, while promoting the uniform mixing of sludge. The slow rotation of the first notched tooth 33 and the slow rotation of the mixing component 310 help maintain the integrity of the flocs and avoid excessive shear force. The expansion and reset mechanism of the mixing component 310 helps increase the mixing space and promotes the uniform distribution of sludge. At the same time, the design of the scraper 311 helps to remove the sludge from the center and avoid excessive accumulation of sludge in the central area, thereby improving the mixing effect. Finally, the incomplete gear design of the second notched tooth 34 and the elastic contraction mechanism of the reset spring 39 help maintain the stability of the mixing space and prevent the flocs from being subjected to excessive impact during the mixing process.

[0060] 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 chain-controlled cleaning water tank for treating high-salt wastewater in the coal chemical industry, comprising a wastewater treatment tank (11), wherein a coarse filtration unit (12) is installed at the top of the inner cavity of the wastewater treatment tank (11), a membrane treatment unit (13) is installed in the middle of the inner cavity of the wastewater treatment tank (11), and an output unit (14) is installed at the bottom of the inner cavity of the wastewater treatment tank (11), characterized in that: The membrane treatment unit (13) is provided with an offset flushing component (2) on its upper side for flushing the internal pores of the membrane treatment unit (13) with treated pure water. The offset flushing component (2) includes several inclined guide blocks (23) that guide and accelerate and pressurize the pure water. The several inclined guide blocks (23) are arranged in an alternating manner. Both sides of each inclined guide block (23) are set as inclined surfaces, and the inclination directions of each inclined surface are set in opposite directions. Below the several inclined guide blocks (23) is a swastika rotating component (28) that allows the pressurized and accelerated pure water to penetrate into the pores by rotating itself. Above the membrane treatment unit (13) is a convection mixing assembly (3) for preventing the flocs from breaking apart. The convection mixing assembly (3) includes a mixing chamber (31). The mixing chamber (31) is installed inside the wastewater treatment tank (11) and is located between the coarse filtration unit (12) and the membrane treatment unit (13). A mixing motor (32) is installed on the top of the mixing chamber (31). The output shaft of the mixing motor (32) passes through the top of the mixing chamber (31). A first tooth (33) is fixedly connected to the outer surface of the output shaft of the mixing motor (32). A second tooth (34) is fixedly connected to the outer surface of the output shaft of the mixing motor (32) and below the first tooth (33). The convection mixing assembly (3) also includes an active disk (35), which is rotatably connected to the top of the inner cavity of the mixing chamber (31). The active disk (35) has a number of straight grooves (36) arranged in a ring at equal intervals through the surface. The active disk (35) has a number of round teeth that mesh with the first missing tooth (33) fixedly connected to the surface of the active disk (35). The active disk (35) has a driven disk (37) rotatably connected inside the active disk (35). The edge of the active disk (35) and the driven disk (37) in contact is made of nylon. The driven disk (37) has a number of curved grooves (38) arranged in a ring at equal intervals through the surface. The side of the driven disk (37) near the mixing motor (32) has a number of straight teeth that mesh with the second missing tooth (34). A return spring (39) is fixedly connected to the outer surface of the active disk (35). The side of the return spring (39) away from the active disk (35) is fixedly connected to the straight teeth on the surface of the driven disk (37). A hybrid component (310) is slidably connected inside each of the curved grooves (38) and straight grooves (36). The hybrid component (310) is divided into a straight rod and an arc block. The straight rod is slidably connected inside the curved grooves (38) and straight grooves (36). The arc block is fixedly connected to the bottom of the straight rod. A scraper (311) is fixedly connected to the side of each arc block that is close to each other. Several inclined blocks are fixedly connected to the bottom of the scraper (311).

2. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 1, characterized in that: The offset flushing assembly (2) also includes two flushing pipes (21). The two flushing pipes (21) are symmetrically fixed and connected to the inside of the sewage treatment tank (11) and located above the membrane treatment unit (13). The flushing pipes (21) are all linearly equidistant and staggeredly arranged with several arc-shaped guide blocks (22). Several inclined guide blocks (23) are symmetrically fixed and connected to the inner wall of the flushing pipes (21). The two flushing pipes (21) are close to each other and located at the bend of the inner wall with a buffer arc block (24). Each flushing pipe (21) is equipped with a nozzle at the end near the membrane treatment unit (13).

3. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 2, characterized in that: Each of the flushing pipes (21) is fixedly connected to a support member (25) at one end near the nozzle. A reciprocating screw (26) is fixedly connected to the bottom of the support member (25). An internal threaded bushing (27) is threadedly connected to the outer surface of the reciprocating screw (26). The internal thread of the internal threaded bushing (27) is compatible with the external thread of the reciprocating screw (26). The outer surface of the internal threaded bushing (27) is fixedly connected to the outer surface of the swastika rotating component (28). The swastika rotating component (28) is perforated and arranged in a ring with several diversion holes (29).

4. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 1, characterized in that: The inclined guide blocks (23) located above and below are tangent to the outer surface of the arc-shaped guide block (22) collinear with the side of the inclined guide block (23) located above and below are tangent to the outer surface of the arc-shaped guide block (22) on the side away from the center of the sewage treatment tank (11).

5. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 1, characterized in that: The bottom of the mixing chamber (31) is symmetrically fixedly connected to a fixed base. The mixing motor (32) is electrically controlled to start and stop by an external controller. The contact points between each scraper (311) and the arc block of the mixing component (310) are different. The inclined blocks at the bottom of the scraper (311) are all tilted toward the side closer to the arc block.

6. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 2, characterized in that: The buffer arc blocks (24) are all made of rubber, and the flushing pipes (21) are all fixedly connected to the inside of the fixed base.

7. The interlocked control cleaning water tank for treating high-salt wastewater in the coal chemical industry according to claim 1, characterized in that: The wastewater treatment tank (11) has a feeding port on the top, the coarse filtration unit (12) has a dispensing mechanism installed inside, and the output unit (14) has a disinfection mechanism above it. The dispensing mechanism and the disinfection mechanism are both electrically controlled to start and stop by an external controller.

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