Efficient chemical wastewater circulating purification equipment based on electrochemical cooperative treatment

Abstract

The invention relates to the technical field of electrochemical wastewater purification, in particular to efficient chemical wastewater circulating purification equipment based on electrochemical cooperative treatment, which comprises a screen drum, a heating box and a filter box, the screen drum is located at the top of the heating box, the heating box is located at the top of the filter box, and an anti-blocking mechanism is arranged at the top of the screen drum. A stirring and cleaning mechanism is arranged in the filtering box, a supporting frame is fixed to the top of the heating box through supporting columns, electrodes are arranged in a 3D mode in the upper layer, the middle layer and the lower layer, the electrodes on the upper layer concentrate on preliminary removal of large-particle suspended solids, a plurality of concave holes with large hole diameters are formed in the surfaces of the electrodes, large-particle sedimentation and electro-deposition reaction are promoted, and therefore the large-particle suspended solids can be removed. The middle-layer electrode is used for degrading organic pollutants, adopts concave holes with proper pore diameters, enhances a reaction interface and optimizes the oxidation process of organic matters, the lower-layer electrode focuses on removing fine particles and soluble pollutants, and adopts finer and smaller concave holes to realize efficient electrochemical oxidation-reduction reaction.

Description

Technical Field

[0001] The invention relates to the technical field of electrochemical wastewater purification, and in particular to a high-efficiency chemical wastewater circulation purification device based on electrochemical coordinated treatment. Background Art

[0002] Chemical wastewater usually comes from process wastewater, cooling water, exhaust gas washing water, and equipment and site cleaning water. These wastewaters often contain complex organic pollutants, heavy metal ions, inorganic salts and other toxic substances that are difficult to degrade. Untreated discharge will cause pollution of different natures and degrees to the water environment, seriously threatening human health and the sustainability of the ecosystem, and have an adverse impact on industrial and agricultural production. At the same time, circulating water is usually used as a cooling system in industry. Due to the continuous evaporation of circulating water, the concentration of scaling ions gradually increases, which will cause a series of problems such as scaling, resulting in blockage of pipelines, increased energy consumption, and shortened equipment life, which has brought a huge economic burden to the industrial industry.

[0003] At present, factories often use "chemical methods" such as adding scale inhibitors to solve problems in industrial circulating water, but this method is prone to secondary pollution and can only temporarily slow down scale and corrosion, and cannot fundamentally solve the problem. On the contrary, this patent uses electrochemical water treatment technology to avoid these problems. Electrochemical water treatment technology is an efficient and environmentally friendly water treatment technology, and this treatment technology naturally has the characteristics of environmental safety and pollution-free. It is the trend of scale removal and scale inhibition research. This patent combines electrochemical technology with traditional treatment methods, and through multi-stage purification and deep treatment, it reduces the discharge load of wastewater to the environment and improves the treatment effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment, comprising: a sieve cylinder, a heating box, and a filter box, the sieve cylinder is located at the top of the heating box, the heating box is located at the top of the filter box, the top of the sieve cylinder is provided with an anti-blocking mechanism, the interior of the filter box is provided with a stirring and cleaning mechanism, the top of the heating box is fixed with a support frame through a support column, the sieve cylinder is located inside the support frame and can rotate inside the support frame, a motor is fixedly installed on the outside of the support frame, a first gear and a first pulley are fixed to the output end of the motor, and a support plate is fixed to the top of the support frame through an arc rod.

[0006] As a further solution of the present invention, the anti-blocking mechanism includes a top plate on the top of the support plate, a vertical axis is fixed to the bottom of the top plate, a top rod is slidably connected to the outside of the vertical axis, and a first spring is arranged on the outside of the vertical axis, the top rod passes through the support plate, and the screen cylinder includes a solid area and screen holes.

[0007] As a further solution of the present invention, one end of the screen cylinder is provided with teeth, the first gear is engaged with the teeth, one end of the support plate is rotatably connected to the second gear, one end of the second tooth is fixed with a second pulley through an axis, the second gear is engaged with the teeth, and a discharge port is provided at the bottom of the support frame.

[0008] As a further scheme of the present invention, an opening is provided on the top of the heating box, a filter screen is installed inside the heating box, a cleaning mechanism is provided inside the heating box, and the cleaning mechanism is used to clean impurities adhered to the top of the filter screen. The cleaning mechanism includes a horizontal bar fixedly arranged on the inner wall of the heating box, and the horizontal bar is provided with a horizontal groove, a threaded rod is rotatably connected inside the horizontal groove, one end of the threaded rod is located outside the heating box and a third pulley is fixed thereto, the second pulley is connected to the third pulley by a belt, a threaded block is slidably connected inside the horizontal groove, the threaded rod penetrates the threaded block and is rotatably connected to the threaded block, a micro pump is installed inside the threaded block, a water tank is provided in the middle of the filter box, the micro pump is connected to the first water pipe and the end of the first water pipe is located in the water tank.

[0009] As a further solution of the present invention, a first nozzle and a first scraper are fixed to the side wall of the threaded block, and the bottom of the first scraper contacts the top of the filter screen, and the first scraper is moved to scrape off impurities adhered to the top of the filter screen.

[0010] As a further solution of the present invention, the top and bottom of the filter box are respectively the first chamber and the second chamber, the interior of the first chamber is rotatably connected with two cylindrical hollow cylinders, the top of the hollow cylinder is provided with a feed pipe and the outside of the feed pipe is provided with a worm gear, the top of the feed pipe is connected to the bottom of the heating box, two support blocks are fixed on the top of the heating box and a worm is rotatably connected inside the two support blocks, the worm is meshed with the worm wheel, a fourth pulley is fixed to one end of the worm, and the fourth pulley is connected to the first pulley by a belt.

[0011] As a further solution of the present invention, the stirring and cleaning mechanism is arranged in a hollow cylinder inside the filter box, an inclined circular ring is fixed on the top of the inner cavity of the hollow cylinder, a circular groove is arranged on the bottom of the circular ring, a hollow column is fixed inside the water tank, and the top of the hollow column is located inside the hollow cylinder, a piston rod is slidably connected inside the hollow column and a second spring is arranged, two pads are fixed on the top of the piston rod, a hard first stirring blade is fixed on the top of the pad, an elastic second stirring blade is fixed on the bottom of the pad and an electric heating tube is installed, a stirring rod is fixed on one end of one of the pads, a protrusion is fixed on the top of the stirring rod, and the top of the protrusion is located inside the circular groove, The stirring rod is provided with a vertical groove and a second scraper is slidably connected inside the vertical groove. Embedded second nozzles are installed on the front and rear sides of the second scraper. A cylinder is installed inside one of the pads, and the output end of the cylinder is fixedly connected to one end of the second scraper. A water pump is installed inside the second scraper, and the water pump is connected to a second water pipe. One end of the second water pipe passes through the pad, the piston rod, the hollow column in sequence and extends to the bottom of the water tank. The other end of the second water pipe is located in the second scraper and connected to the second nozzle. The second scraper is provided with grooves on both sides of the vertical groove. A third spring is provided inside the groove and a scraper is slidably connected. One end of the third spring is fixedly connected to the scraper.

[0012] As a further solution of the present invention, a drain pipe is connected to the bottom of the hollow cylinder and the bottom of the drain pipe is located in the second chamber.

[0013] As a further solution of the present invention, the inner wall of the second chamber is provided with electrodes distributed in three layers: upper, middle and lower layers, and the electrodes are provided with concave holes.

[0014] As a further solution of the present invention, a pipe is provided at one end of the sieve cylinder, and the wastewater enters the sieve cylinder through the pipe.

[0015] The invention proposes a highly efficient chemical wastewater circulation purification device based on electrochemical coordinated treatment, which has the following beneficial effects:

[0016] 1. When the hollow cylinder rotates, the water inside it will hit the first stirring blade, the second stirring blade and the stirring rod, and then the water will be stirred, so that the water at different positions will move toward the electric heating tube to shorten the time of electric heating. By heating the water, it is convenient for sterilization to achieve water treatment. When the impurities on the inner wall of the hollow cylinder need to be cleaned, the output end of the cylinder extends to make the second scraper leave the stirring blade, and then the blade of the second scraper contacts the inner wall of the hollow cylinder, and the hollow cylinder rotates while driving the inclined ring to rotate. Since the circular groove at the bottom of the ring will rotate outside the protrusion, since the ring is tilted, the stirring rod will drop. When the stirring rod drops, it will bring the piston rod down in the hollow column through the pad and compress the second spring. The second spring facilitates the piston rod in the hollow column. The cylinder moves up and down the second scraper, and then the second scraper moves up and down, and the stirring rod and the second scraper move up and down, and the stirring rod and the second scraper move up and down, and the second scraper moves ...

[0017] 2. The electrodes inside the second chamber are arranged in 3D with three levels: upper, middle and lower. The upper electrode focuses on the preliminary removal of large suspended particles, and multiple concave holes with coarse pores are set on the surface of the electrode to promote the sedimentation of large particles and electrodeposition reaction. The middle electrode is used to degrade organic pollutants, and concave holes with moderate pore sizes are used to enhance the reaction interface and optimize the oxidation process of organic matter. The lower electrode focuses on removing fine particles and soluble pollutants, and uses finer and smaller concave holes to achieve efficient electrochemical redox reactions. In other words, large particle pollutants in wastewater are removed and organic pollutants are initially degraded through electrochemical reactions. The porous structure of the porous plate is conducive to gas diffusion, which accelerates the separation of bubbles from the surface of the plate, increases the amount of scale removal per unit time, and oxidizes or reduces suspended solids and some organic matter to improve the effect of wastewater treatment. At the same time, an electric flocculation unit is added in the second chamber, and the metal ions generated by the electrochemical reaction combine with pollutants in the water to form flocculent precipitates, further improving the purification degree of wastewater, thereby effectively removing colloids and fine suspended matter in the wastewater, and reducing the turbidity of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance and structure of the device proposed by the present invention;

[0019] Figure 2A schematic diagram of the structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the heating box proposed by the present invention;

[0021] Figure 4 The present invention proposes Figure 3 Schematic diagram of local structure;

[0022] Figure 5 This is a schematic diagram of the internal structure of the filter box proposed by the present invention;

[0023] Figure 6 It is the internal plan view of the filter box proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the hollow cylinder proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the bottom structure of the ring proposed by the present invention;

[0026] Fig. 9 This is a schematic diagram of the stirring rod structure proposed by the present invention;

[0027] Fig.10 This is a schematic diagram of the internal structure of the hollow column proposed by the present invention;

[0028] Fig.11 A schematic diagram of the internal structure of the second scraper proposed by the present invention;

[0029] Fig.12 This is a schematic diagram of the scraper structure in the second scraper proposed by the present invention;

[0030] Fig.13 This is a schematic diagram of the groove structure in the second scraper proposed by the present invention.

[0031] In the figure: 1, screen drum; 2, heating box; 3, filter box; 4, support column; 5, support frame; 6, motor; 7, first gear; 8, first pulley; 9, arc rod; 10, support plate; 11, top plate; 12, vertical axis; 13, top rod; 14, first spring; 15, solid area; 16, sieve hole; 17, teeth; 18, second gear; 19, second pulley; 21, discharge port; 22, filter screen; 24, horizontal bar; 25, horizontal groove; 26, threaded rod; 27, third pulley; 28, threaded block; 30, water tank; 31, first nozzle; 32, first scraper; 33, first chamber; 34, second chamber chamber; 35, hollow cylinder; 36, feed pipe; 37, worm gear; 38, worm; 39, fourth pulley; 40, second spring; 41, pad; 42, first stirring blade; 43, second stirring blade; 44, electric heating tube; 45, stirring rod; 46, vertical groove; 47, second scraper; 48, second nozzle; 49, cylinder; 50, water pump; 51, first water pipe; 52, second water pipe; 53, groove; 54, third spring; 55, scraper; 56, drain pipe; 57, electrode; 58, concave hole; 61, ring; 62, groove; 63, hollow column; 64, bump; 65, pipeline; 66, piston rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of its embodiments based on the overall structure of the present invention.

[0034] A high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment, comprising: a sieve drum 1, a heating box 2, and a filter box 3. A pipe 65 is provided at one end of the sieve drum 1, and the wastewater enters the sieve drum 1 from the pipe 65. The sieve drum 1 is located at the top of the heating box 2, and the heating box 2 is located at the top of the filter box 3. An anti-blocking mechanism is provided on the top of the sieve drum 1, and a stirring and cleaning mechanism is provided inside the filter box 3. A support frame 5 is fixed to the top of the heating box 2 through a support column 4, and the sieve drum 1 is located inside the support frame 5 and can rotate inside the support frame 5. A motor 6 is fixedly installed on the outside of the support frame 5, and a first gear 7 and a first pulley 8 are fixed to the output end of the motor 6. A support plate 10 is fixed to the top of the support frame 5 through an arc rod 9.

[0035] Furthermore, the anti-blocking mechanism includes a top plate 11 on the top of the support plate 10, a vertical shaft 12 is fixed to the bottom of the top plate 11, a top rod 13 is slidably connected to the outside of the vertical shaft 12, and a first spring 14 is arranged on the outside of the vertical shaft 12, the top rod 13 passes through the support plate 10, the screen drum 1 includes a solid area 15 and a screen hole 16, one end of the screen drum 1 is provided with teeth 17, the first gear 7 is meshed with the teeth 17, one end of the support plate 10 is rotatably connected with a second gear 18, one end of the second gear 18 is fixed with a second pulley 19 through an axis, the second gear 18 is meshed with the teeth 17, and a discharge port 21 is arranged at the bottom of the support frame 5.

[0036] It should be noted that the motor 6 starts to drive the first gear 7 and the first pulley 8 to rotate. Since the first gear 7 is meshed with the teeth 17, when the first gear 7 rotates, the teeth 17 drive the screen drum 1 to rotate inside the support frame 5. The rotation of the screen drum 1 facilitates the operation of the anti-blocking mechanism. When the push rod 13 is located in the solid area 15 of the screen drum 1, the first spring 14 is in a compressed state. As the screen drum 1 rotates, the sieve hole 16 moves to the bottom of the push rod 13. The diameter is smaller than the inner diameter of the sieve hole 16. At this time, the compressive force of the solid area 15 on the push rod 13 disappears, and then the first spring 14 is reset from the compressed state, and the push rod 13 is lowered outside the vertical axis 12 into the sieve hole 16. When the push rod 13 enters, the impurities in the sieve hole 16 are pushed out. As the sieve drum 1 continues to rotate, the push rod 13 leaves the sieve hole 16. The push rod 13 is made of rubber and will not get stuck in the sieve hole 16 when leaving the sieve hole 16. The above-mentioned cycle operation is conducive to preventing the sieve hole 16 from being blocked.

[0037] Next, the top of the heating box 2 is provided with an opening, a filter screen 22 is installed inside the heating box 2, and a cleaning mechanism is provided inside the heating box 2, which is used to clean impurities adhered to the top of the filter screen 22, and the cleaning mechanism includes a horizontal bar 24 fixedly arranged on the inner wall of the heating box 2, and the horizontal bar 24 is provided with a horizontal groove 25, and a threaded rod 26 is rotatably connected inside the horizontal groove 25, one end of the threaded rod 26 is located outside the heating box 2 and fixed with a third pulley 27, and the second pulley 19 is connected to the third pulley 27 by a belt, so A threaded block 28 is slidably connected inside the transverse groove, the threaded rod 26 penetrates the threaded block 28 and is rotatably connected to the threaded block 28, a micro pump is installed inside the threaded block 28, a water tank 30 is provided in the middle of the filter box 3, the micro pump is connected to a first water pipe 51 and the end of the first water pipe 51 is located in the water tank 30, a first nozzle 31 and a first scraper 32 are fixed to the side wall of the threaded block 28, and the bottom of the first scraper 32 is in contact with the top of the filter screen 22, and the first scraper 32 is used to scrape off impurities adhered to the top of the filter screen 22 through the movement of the first scraper 32.

[0038] It needs to be explained that when the screen drum 1 rotates, the second gear 18 and the second pulley 19 are driven to rotate under the action of the teeth 17. The second pulley 19 drives the third pulley 27 and the threaded rod 26 to rotate through the belt, and then the micro pump in the threaded block 28 is started to pump the clean water stored in the water tank 30 to the inside of the first nozzle 31 through the first water pipe 51. The first nozzle 31 is a high-pressure nozzle, which pressurizes and sprays water to the impurities adhered to the top of the filter screen 22, which is conducive to loosening the adhered impurities and facilitating the scraping operation of the first scraper 32. When the threaded rod 26 rotates, it drives the threaded block 28 to move in the transverse groove 25. The threaded block 28 moves with the first nozzle 31 and the first scraper 32. When the first scraper 32 moves, the loosened impurities are scraped off to achieve the cleaning operation of the filter screen 22.

[0039] Next, the top and bottom of the filter box 3 are respectively the first chamber 33 and the second chamber 34, the first chamber 33 has two cylindrical hollow cylinders 35 rotatably connected inside, a feed pipe 36 is provided on the top of the hollow cylinder 35 and a worm gear 37 is provided on the outside of the feed pipe 36, the top of the feed pipe 36 is connected to the bottom of the heating box 2, two support blocks are fixed on the top of the heating box 2 and a worm 38 is rotatably connected inside the two support blocks, the worm 38 is meshed with the worm gear 37, a fourth pulley 39 is fixed to one end of the worm 38, the fourth pulley 39 is connected to the first pulley 8 by a belt, the bottom of the hollow cylinder 35 is connected to a drain pipe 56 and the bottom of the drain pipe 56 is located in the second chamber 34. The stirring and cleaning mechanism is arranged in the hollow cylinder 35 inside the filter box 3, the top of the inner cavity of the hollow cylinder 35 is fixed with an inclined circular ring 61, the bottom of the circular ring 61 is provided with a circular groove 62, the inside of the water tank 30 is fixed with a hollow column 63, and the top of the hollow column 63 is located inside the hollow cylinder 35, the inside of the hollow column 63 is slidably connected with a piston rod 66 and provided with a second spring 40, the top of the piston rod 66 is fixed with two pads 41, the top of the pad 41 is fixed with a hard first stirring blade 42, the bottom of the pad 41 is fixed with an elastic second stirring blade 43 and an electric heating tube 44 is installed, one end of one of the pads 41 is fixed with a stirring rod 45, the top of the stirring rod 45 is fixed with a protrusion 64, and the top of the protrusion 64 is located inside the circular groove 62, the stirring rod 45 is provided with a vertical groove 46 and the inside of the vertical groove 46 is slidably connected with a second scraper 47, the front and rear sides of the second scraper 47 are equipped with embedded second nozzles 48, one of the pads 41 is installed with a cylinder 49, and the output end of the cylinder 49 is fixedly connected to one end of the second scraper 47, the second scraper 47 is installed with a water pump 50, the water pump 50 is connected to a second water pipe 52, one end of the second water pipe 52 passes through the pad 41, the piston rod 66, the hollow column 63 in sequence and extends to the bottom of the water tank 30, the other end of the second water pipe 52 is located in the second scraper 47 and is connected to the second nozzle 48, the second scraper 47 is provided with grooves 53 on both sides of the vertical groove 46, the groove 53 is provided with a third spring 54 and is slidably connected with a scraper 55, one end of the third spring 54 is fixedly connected to the scraper 55, the inner wall of the second chamber 34 is provided with electrodes 57 distributed in upper, middle and lower layers, and the electrode 57 is provided with a concave hole 58.

[0040] It can be concluded that when the hollow cylinder 35 rotates, the water inside it will hit the first stirring blade 42, the second stirring blade 43 and the stirring rod 45, and then the water will be stirred, so that the water at different positions will move toward the electric heating tube 44 to shorten the time of electric heating, and the water can be sterilized by heating the water to achieve water treatment. When the impurities on the inner wall of the hollow cylinder 35 need to be cleaned, the output end of the cylinder 49 extends to make the second scraper 47 leave the stirring rod 45, and then the blade of the second scraper 47 contacts the inner wall of the hollow cylinder 35, and the rotation of the hollow cylinder 35 will drive the inclined ring 61 to rotate. Since the circular groove 62 at the bottom of the ring 61 will rotate outside the protrusion 64, and since the ring 61 is inclined, the stirring rod 45 will drop, and the dropping of the stirring rod 45 At this time, the backing plate 41 brings the piston rod 66 down in the hollow column 63 and compresses the second spring 40. The second spring 40 facilitates the piston rod 66 to rise after it descends in the hollow column 63, and then the stirring rod 45 and the second scraper 47 can be lifted and lowered by the inclined setting of the ring 61 and in cooperation with the second spring 40. The lifting and lowering of the second scraper 47 is conducive to scraping impurities at different heights of the inner wall of the hollow cylinder 35. At the same time, the water pump 50 is started to inject the clean water in the water tank 30 into the second nozzle 48 through the second water pipe 52, and then the second nozzle 48 is sprayed to wash away the scraped impurities to achieve the cleaning of the inner wall of the hollow cylinder 35. It should be noted that the scraping operation is carried out when there is no water in the hollow cylinder 35. After the scraping operation is completed, the cylinder 49 brings The second scraper 47 returns to the stirring rod 45. When the second scraper 47 returns, due to the elasticity of the third spring 54, the scraper 55 will contact the side wall of the second scraper 47. When the second scraper 47 is retracted, the impurities adhering to the blade of the second scraper 47 are removed, and the drain pipe 56 is opened by the solenoid valve. Then, the water treated by the hollow cylinder 35 will come to the inside of the second chamber 34. The electrodes 57 inside the second chamber 34 adopt a 3D arrangement of upper, middle and lower levels. The upper electrode 57 focuses on the preliminary removal of large suspended particles, and a plurality of coarse-diameter concave holes 58 are arranged on the surface of the electrode 57 to promote large particle sedimentation and electrodeposition reaction. The middle electrode 57 uses concave holes 58 with moderate pore sizes to degrade organic pollutants and enhance the reaction interface. The surface optimizes the oxidation process of organic matter. The lower electrode 57 focuses on removing fine particles and soluble pollutants. A finer and smaller concave hole 58 is used to achieve efficient electrochemical redox reaction. In other words, large particle pollutants in the wastewater are removed and organic pollutants are initially degraded through electrochemical reaction. The porous structure of the porous plate is conducive to gas diffusion, which accelerates the separation of bubbles from the plate surface, increases the amount of scale removal per unit time, and oxidizes or reduces suspended solids and some organic matter to improve the effect of wastewater treatment. At the same time, an electric flocculation unit is added to the second chamber 34. The metal ions generated by the electrochemical reaction combine with the pollutants in the water to form flocculent precipitates, further improving the degree of purification of the wastewater, thereby effectively removing colloids and fine suspended matter in the wastewater.At the same time, it reduces the turbidity of wastewater.

[0041] Working principle: S1: Through the provided sieve drum 1 and anti-blocking mechanism, the chemical waste water pipe is inserted into the pipe 65, and then the waste water enters the interior of the sieve drum 1, and then the waste water is discharged through the sieve hole 16 and enters the interior of the heating box 2 through the discharge port 21 at the bottom of the support frame 5. After that, the larger impurities in the waste water cannot be discharged from the sieve hole 16 and will remain in the interior of the sieve drum 1. A drum cover is provided at the end of the sieve drum 1 away from the pipe 65. The drum cover is opened regularly to take out the impurities in the sieve drum 1. The rotation of the sieve drum 1 is completed by the motor 6, specifically: the motor 6 starts to drive the first gear 7 and the first pulley 8 to rotate. Since the first gear 7 is meshed with the teeth 17, when the first gear 7 rotates, it will drive the sieve drum 1 to rotate inside the support frame 5 through the teeth 17, and the rotation of the sieve drum 1 In order to facilitate the work of the anti-blocking mechanism, when the push rod 13 is located in the solid area 15 of the screen drum 1, the first spring 14 is in a compressed state. As the screen drum 1 rotates, the screen hole 16 will move to the bottom of the push rod 13. The diameter of the push rod 13 is smaller than the inner diameter of the screen hole 16. At this time, the pressure of the solid area 15 on the push rod 13 disappears, and then the first spring 14 is reset from the compressed state, and the push rod 13 is lowered outside the vertical axis 12 into the screen hole 16. When the push rod 13 enters, the impurities in the screen hole 16 are pushed out. As the screen drum 1 continues to rotate, the push rod 13 leaves the screen hole 16. The push rod 13 is made of rubber and will not get stuck in the screen hole 16 when leaving the screen hole 16. The above-mentioned cycle operation is conducive to preventing the screen hole 16 from being blocked.

[0042] S2: Through the heating box 2 and the cleaning mechanism, the staff added electrochemical oxidation technology when treating the wastewater in the heating box 2. The electrochemical oxidation technology specifically generates strong oxidants (such as hypochlorous acid, ozone, hydrogen peroxide) through the anode to enhance the disinfection and organic matter oxidation effect. That is, high-efficiency sterilization is achieved at a lower heating temperature, reducing energy consumption. At the same time, the electrode 57 of the electrochemical oxidation technology in the heating box 2 is designed to adopt an insoluble anode material, such as a titanium-coated anode or a platinum electrode, to extend the life of the equipment. In addition to arranging the electrode 57 inside the heating box 2, the present invention also arranges the electrode 57 on the inner wall of the second chamber 34. At the same time, electric heating tubes 44 are installed inside the heating box 2 and the hollow cylinder 35. The wastewater is heated by electric heating inside the heating box 2 to eliminate bacteria in the wastewater. Before that, when the wastewater enters the heating box 2, the filter screen 22 will first filter out fine impurities in the wastewater, and the filter screen 22 will be cleaned by the cleaning mechanism. The cleaning mechanism is performed when there is no water in the heating box 2. Specifically, when the screen drum 1 rotates, the second gear 18 and the second pulley 19 will be driven to rotate under the action of the teeth 17. The second The pulley 19 drives the third pulley 27 and the threaded rod 26 to rotate through the belt, and then the micro pump in the threaded block 28 is started to pump the clean water stored in the water tank 30 to the inside of the first nozzle 31 through the first water pipe 51. The first nozzle 31 is a high-pressure nozzle, which pressurizes and sprays water to the impurities adhered to the top of the filter 22, which is conducive to loosening the adhered impurities and facilitating the scraping operation of the first scraper 32. When the threaded rod 26 rotates, it drives the threaded block 28 to move in the transverse groove 25. The threaded block 28 moves with the first nozzle 31 and the first scraper 32. When the first scraper 32 moves, it scrapes the loosened impurities to realize the cleaning operation of the filter 22. A waterproof sealing door that can be opened is provided on the rear surface of the heating box 2. When there is no water in the heating box 2, the waterproof sealing door is opened to take out the scraped impurities;

[0043] S3: Through the filter box 3, stirring and cleaning mechanism, the electromagnetic valve in the feed pipe 36 is opened and the feed pipe 36 is opened. Since the top of the feed pipe 36 is connected to the heating box 2, when the feed pipe 36 is opened, the water treated by the heating box 2 will enter the inside of the hollow cylinder 35 from the inside of the heating box 2 through the feed pipe 36. When the first pulley 8 rotates, the fourth pulley 39 and the worm 38 are driven to rotate through the belt. When the worm 38 rotates, the feed pipe 36 is driven to rotate through the worm gear 37. When the feed pipe 36 rotates, it drives the hollow cylinder 35 to rotate. The electric heating tube 44 in the hollow cylinder 35 starts to heat the water. Since it takes a long time to heat and boil the wastewater, the wastewater The retained impurities are easy to adhere to the inner wall of the hollow cylinder 35, so a stirring and cleaning mechanism is set inside the hollow cylinder 35, which can not only stir the wastewater and make the wastewater flow by stirring to improve the electric heating effect, but also clean the inner wall of the hollow cylinder 35 to produce a linkage effect. Specifically, when the hollow cylinder 35 rotates, the water inside it will hit the first stirring blade 42, the second stirring blade 43 and the stirring rod 45, and then the water will be stirred, so that the water at different positions will move toward the electric heating tube 44 to shorten the electric heating time, and the water can be sterilized by heating the water to achieve water treatment. When the impurities on the inner wall of the hollow cylinder 35 need to be cleaned, the output end of the cylinder 49 extends out to make the second scraper 47 move from the stirring The stirring rod 45 leaves the hollow cylinder 35, and then the blade of the second scraper 47 contacts the inner wall of the hollow cylinder 35, and the rotation of the hollow cylinder 35 will drive the inclined ring 61 to rotate. Since the circular groove 62 at the bottom of the ring 61 will rotate outside the protrusion 64, and since the ring 61 is inclined, the stirring rod 45 will descend. When the stirring rod 45 descends, the piston rod 66 is brought down in the hollow column 63 through the pad 41 and compresses the second spring 40. The second spring 40 facilitates the piston rod 66 to rise after descending in the hollow column 63, and then the stirring rod 45 and the second scraper 47 can be lifted and lowered by the inclined setting of the ring 61 and the cooperation of the second spring 40. It is beneficial to scrape off impurities at different heights of the inner wall of the hollow cylinder 35. At the same time, the water pump 50 is started to inject clean water in the water tank 30 into the second nozzle 48 through the second water pipe 52, and then the impurities scraped off are washed off from the second nozzle 48 to clean the inner wall of the hollow cylinder 35. It should be noted that the scraping operation is performed when there is no water in the hollow cylinder 35. After the scraping operation is completed, the cylinder 49 brings the second scraper 47 back to the stirring rod 45. When the second scraper 47 returns, due to the elasticity of the third spring 54, the scraper 55 will contact the side wall of the second scraper 47. When the second scraper 47 is retracted, the impurities adhering to the blade of the second scraper 47 are removed;

[0044] S4: Open the drain pipe 56 through the solenoid valve, and then the water treated by the hollow cylinder 35 will come to the inside of the second chamber 34. The electrodes 57 inside the second chamber 34 adopt a 3D arrangement of three levels: upper, middle and lower. The upper electrode 57 focuses on the preliminary removal of large suspended particles, and a plurality of coarse-diameter concave holes 58 are set on the surface of the electrode 57 to promote the sedimentation of large particles and the electrodeposition reaction. The middle electrode 57 uses concave holes 58 with a moderate pore size to degrade organic pollutants, enhance the reaction interface, and optimize the oxidation process of organic matter. The lower electrode 57 focuses on removing fine particles and soluble pollutants, and uses finer and smaller concave holes 58 to achieve efficient electrochemical redox reaction. In other words, large particle pollutants in the wastewater are removed and organic pollutants are preliminarily degraded through electrochemical reactions. The porous structure of the porous plate is conducive to gas diffusion, which accelerates the detachment of bubbles from the plate surface, increases the amount of scale removal per unit time, and oxidizes or reduces suspended solids and some organic matter to improve the effect of wastewater treatment. At the same time, an electric flocculation unit is added to the second chamber 34, and the metal ions generated by the electrochemical reaction combine with the pollutants in the water to form flocculent precipitates, further improving the degree of wastewater purification, thereby effectively removing colloids and fine suspended matter in the wastewater and reducing the turbidity of the wastewater. The screen drum 1, heating box 2, and filter box 3 are used as tertiary circulating water treatment.

[0045] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly efficient chemical wastewater circulation purification device based on electrochemical coordinated treatment, comprising: A sieve drum (1), a heating box (2), and a filter box (3), characterized in that: the sieve drum (1) is located at the top of the heating box (2), the heating box (2) is located at the top of the filter box (3), the top of the sieve drum (1) is provided with an anti-blocking mechanism, the inside of the filter box (3) is provided with a stirring and cleaning mechanism, the top of the heating box (2) is fixed with a support frame (5) through a support column (4), the sieve drum (1) is located inside the support frame (5) and can rotate inside the support frame (5), a motor (6) is fixedly installed outside the support frame (5), a first gear (7) and a first pulley (8) are fixed to the output end of the motor (6), and a support plate (10) is fixed to the top of the support frame (5) through an arc rod (9).

2. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 1 is characterized in that: The anti-blocking mechanism comprises a top plate (11) on the top of a support plate (10), a vertical shaft (12) is fixed to the bottom of the top plate (11), a top rod (13) is slidably connected to the outside of the vertical shaft (12), and a first spring (14) is arranged outside the vertical shaft (12), the top rod (13) passes through the support plate (10), and the screen drum (1) comprises a solid area (15) and screen holes (16).

3. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 1 is characterized in that: One end of the screen drum (1) is provided with teeth (17), one end of the support plate (10) is rotatably connected to a second gear (18), one end of the second gear (18) is fixed with a second pulley (19) via a shaft, the second gear (18) is meshed with the teeth (17), and a discharge port (21) is provided at the bottom of the support frame (5).

4. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 1 is characterized in that: The top of the heating box (2) is provided with an opening, a filter screen (22) is installed inside the heating box (2), a cleaning mechanism is provided inside the heating box (2), and the cleaning mechanism is used to clean impurities adhering to the top of the filter screen (22), the cleaning mechanism comprises a horizontal bar (24) fixedly arranged on the inner wall of the heating box (2), and the horizontal bar (24) is provided with a horizontal groove (25), a threaded rod (26) is rotatably connected inside the horizontal groove (25), and one end of the threaded rod (26) is located at the heating box (2). A third pulley (27) is fixed to the outside of the filter box (3); the second pulley (19) is connected to the third pulley (27) via a belt; a threaded block (28) is slidably connected to the inside of the transverse groove; the threaded rod (26) passes through the threaded block (28) and is rotatably connected to the threaded block (28); a micro pump is installed inside the threaded block (28); a water tank (30) is provided in the middle of the filter box (3); the micro pump is connected to a first water pipe (51) and the end of the first water pipe (51) is located in the water tank (30).

5. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 4 is characterized in that: A first nozzle (31) and a first scraper (32) are fixed to the side wall of the threaded block (28), and the bottom of the first scraper (32) is in contact with the top of the filter screen (22). The first scraper (32) is used to scrape off impurities adhering to the top of the filter screen (22) through the movement of the first scraper (32).

6. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 1 is characterized in that: The top and bottom of the filter box (3) are respectively a first chamber (33) and a second chamber (34); two cylindrical hollow cylinders (35) are rotatably connected inside the first chamber (33); a feed pipe (36) is arranged on the top of the hollow cylinder (35) and a worm gear (37) is arranged outside the feed pipe (36); the top of the feed pipe (36) is connected to the bottom of the heating box (2); two support blocks are fixed on the top of the heating box (2) and a worm (38) is rotatably connected inside the two support blocks; the worm (38) is meshed with the worm gear (37); a fourth pulley (39) is fixed to one end of the worm (38); the fourth pulley (39) is connected to the first pulley (8) by a belt.

7. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 1 is characterized in that: The stirring and cleaning mechanism is arranged in a hollow cylinder (35) inside the filter box (3); an inclined circular ring (61) is fixed at the top of the inner cavity of the hollow cylinder (35); a circular groove (62) is arranged at the bottom of the circular ring (61); a hollow column (63) is fixed inside the water tank (30); the top of the hollow column (63) is located inside the hollow cylinder (35); a piston rod (66) is slidably connected inside the hollow column (63) and a second spring (40) is arranged; the piston rod (66) is slidably connected inside the hollow cylinder (35); ... Two pads (41) are fixed on the top of the pads (41), a hard first stirring blade (42) is fixed on the top of the pads (41), an elastic second stirring blade (43) is fixed on the bottom of the pads (41) and an electric heating tube (44) is installed, a stirring rod (45) is fixed on one end of one of the pads (41), a convex block (64) is fixed on the top of the stirring rod (45), and the top of the convex block (64) is located inside the circular groove (62), and the stirring rod (45) is provided with a vertical groove (4 6) and a second scraper (47) is slidably connected inside the vertical groove (46), and a second nozzle (48) is installed on the front and rear sides of the second scraper (47), a cylinder (49) is installed inside one of the pads (41), and the output end of the cylinder (49) is fixedly connected to one end of the second scraper (47), a water pump (50) is installed inside the second scraper (47), and the water pump (50) is connected to a second water pipe (52), and one end of the second water pipe (52) is connected to the second water pipe (52). The second end of the second water pipe (52) passes through the backing plate (41), the piston rod (66), the hollow column (63) in sequence and extends to the bottom of the water tank (30); the other end of the second water pipe (52) is located in the second scraper (47) and is connected to the second nozzle (48); the second scraper (47) is provided with grooves (53) on both sides of the vertical groove (46); a third spring (54) is provided inside the groove (53) and is slidably connected to a scraper (55); one end of the third spring (54) is fixedly connected to the scraper (55).

8. The high-efficiency chemical wastewater circulation purification equipment based on electrochemical coordinated treatment according to claim 6 is characterized in that: The bottom of the hollow cylinder (35) is connected to a drainage pipe (56), and the bottom of the drainage pipe (56) is located in the second chamber (34).

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