Efficient filtration treatment device based on industrial sewage

Abstract

The invention relates to the technical field of sewage treatment, and discloses an industrial sewage-based efficient filtering treatment device, which comprises a lower filtering kettle, the upper surface of the lower filtering kettle is connected with an upper filtering kettle through a flange, the upper surface of the upper filtering kettle is fixedly connected with a limiting cylinder, and the inner surface of the limiting cylinder is sleeved with a mounting seat; the U-shaped electric heating tube can heat sewage to promote pollutant decomposition and separate oily substances, and in the heating process, the temperature monitoring meter can monitor the temperature in the lower filtering kettle and the upper filtering kettle in real time, so that accurate temperature control is facilitated, a gradient temperature heating mode is performed, and the heating efficiency is improved. The sewage is stirred by the stirring paddle, so that the flowability of the sewage is promoted, the heating uniformity of the sewage is further improved, and the pollutant decomposition effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to an efficient filtration treatment device for industrial sewage. Background Technique

[0002] With the rapid development of industry, the composition of sewage has become increasingly complex. Traditional filtration technologies are difficult to efficiently treat high-viscosity, high-COD, and oily wastewater, and are prone to problems such as filter material clogging and high energy consumption. As a result, an efficient filtration treatment device based on heating technology has emerged. This device significantly improves filtration efficiency and adaptability through thermal-driven pretreatment. Heating technology can disrupt the stability of colloids, promote the flocculation of pollutants, and improve sewage treatment efficiency. In the prior art, heating sewage with electric heating tubes is a low-cost and high-efficiency treatment method. However, electric heating tubes are usually installed inside the sewage treatment device, making it difficult to inspect and replace them, resulting in certain risks during long-term use.

[0003] The patent with the publication number CN216662745U discloses an efficient filtration treatment device for industrial sewage. The patent includes a first support frame, a lid, a water bucket, and an electric heating wire. The water bucket is installed on the upper part of the first support frame, and a stirring tank is installed at the rear of the first support frame. The electric heating wire is installed on the water bucket, and a lid is clamped and connected to one side of the water bucket. Under the action of the electric heating wire, industrial sewage can be heated at a high temperature to improve the filtration quality of water. People can start the motor, which then drives the stirring rod to rotate, thereby stirring the heated industrial sewage and efficiently filtering the industrial sewage, improving the efficiency of people's efficient filtration of sewage to a certain extent. Although this patent solves the above problems, there is still a problem that the electric heating device is in direct contact with the sewage, making it difficult to inspect and replace, and there is a certain danger in use. Therefore, an efficient filtration treatment device for industrial sewage is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an efficient filtration treatment device for industrial sewage in view of the above deficiencies in the prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an industrial sewage efficient filtration treatment device, including a lower filtration kettle, the upper surface of the lower filtration kettle is connected to an upper filtration kettle through a flange, the upper surface of the upper filtration kettle is fixedly connected with a limiting cylinder, the inner surface of the limiting cylinder is sleeved with a mounting seat, the lower surface of the mounting seat is fixedly connected with a U-shaped electric heating tube, a stain discharge device for conveniently discharging inorganic pollutants is arranged on the left side of the lower filtration kettle, a flocculant adding device for uniformly adding flocculant is arranged on the top of the upper filtration kettle, the inner surface of the bottom end of the lower filtration kettle is rotatably connected with a main shaft, the circumferential surface of the main shaft is fixedly connected with stirring paddles, the circumferential surface of the main shaft is fixedly connected with a filter net, the bottom surface of the top of the mounting seat is fixedly connected with a movable clamping block, the circumferential surface of the limiting cylinder is fixedly connected with a fixed clamping block, the left side surface of the fixed clamping block is fixedly connected with a sleeve, the inner surface of the left end of the sleeve is slidably connected with a positioning rod, the circumferential surface of the positioning rod is fixedly connected with a sliding ring, the upper surface of the sleeve is provided with an L-shaped through groove, the circumferential surface of the sliding ring is fixedly connected with a clamping shaft, the inner surface of the top end of the upper filtration kettle is fixedly connected with a temperature monitoring table, the top end of the main shaft is fixedly connected with a long cam, the bottom end of the main shaft is fixedly connected with a motor, and the motor is fixedly connected with the lower surface of the lower filtration kettle. The sliding ring slides in the inner surface of the sleeve, the positioning rod is in contact with the inner surface of the movable clamping block, the positioning rod is in contact with the inner surface of the fixed clamping block, a first left-right spring is arranged between the sliding ring and the fixed clamping block, the clamping shaft is in contact with the inner surface of the L-shaped through groove. After the sewage is input into the lower filtration kettle and the upper filtration kettle, the mounting seat is inserted into the limiting cylinder, and the mounting seat drives the U-shaped electric heating tube to be inserted into the lower filtration kettle and the upper filtration kettle. When filtering the sewage, the U-shaped electric heating tube is started, and the U-shaped electric heating tube can heat the sewage. During the heating process, the temperature monitoring table can monitor the temperature inside the lower filtration kettle and the upper filtration kettle in real time. The motor is started, the motor drives the main shaft to rotate, the main shaft drives the stirring paddles to rotate, and the stirring paddles stir the sewage. After the mounting seat is inserted into the limiting cylinder, the positioning rod is pushed to the right to make the positioning rod insert into the fixed clamping block and the movable clamping block. At this time, the positioning rod is rotated backward, the positioning rod drives the sliding ring to rotate, the sliding ring drives the clamping shaft to rotate, so that the clamping shaft is inserted into the right protruding end of the L-shaped through groove, and further the sliding ring and the positioning rod are locked in the sleeve. After the positioning rod is locked, the fixed clamping block and the movable clamping block can be locked, so that the mounting seat can be quickly installed in the limiting cylinder. When it is necessary to detect and replace the U-shaped electric heating tube, the positioning rod is rotated forward, the positioning rod drives the sliding ring and the clamping shaft to rotate forward, the clamping shaft disengages from the right protruding end of the L-shaped through groove, so that the sliding ring and the positioning rod lose the lock, and then the elastic reset action of the first spring pushes the sliding ring and the positioning rod out of the fixed clamping block and the movable clamping block to the left, so that the fixed clamping block and the movable clamping block are separated. At this time, the mounting seat can be quickly removed from the limiting cylinder.

[0006] Preferably, the stain discharging device includes a sewage discharge pipe. An annular support frame is fixedly connected to the circumferential surface of the filter screen. The left side surface of the inner wall of the lower filter kettle is fixedly connected with a sewage collecting cylinder. The front side surface of the sewage collecting cylinder is fixedly connected with a scraping frame. The lower surface of the sewage discharge pipe is fixedly connected with a solenoid valve I. The stain discharging device further includes a U-shaped sliding rod. A contact ring is fixedly connected to the circumferential surface of the top of the U-shaped sliding rod. A semi-circular block is fixedly connected to the right end of the top of the U-shaped sliding rod. A circular scraping plate is fixedly connected to the right end of the bottom of the U-shaped sliding rod. A steel brush is fixedly connected to the rear side surface of the bottom of the sewage collecting cylinder. A transmission sleeve shaft is fixedly connected to the upper surface of the long cam. The sewage discharge pipe is fixedly connected to the left side surface of the lower filter kettle. The U-shaped sliding rod is slidably connected to the left inner surface of the lower filter kettle. A second spring is arranged between the contact ring and the left side surface of the lower filter kettle. The U-shaped sliding rod is slidably connected to the left inner surface of the sewage discharge pipe. The circular scraping plate is in contact with the inner surface of the sewage collecting cylinder. The annular support frame is slidably connected to the inner wall of the lower filter kettle. The scraping frame is in contact with the upper surface of the filter screen. The steel brush is in contact with the upper surface of the filter screen. After the sewage enters the lower filter kettle and the upper filter kettle and passes through the filter screen, the pollutant particles and oil stains in the sewage are filtered above the filter screen. The main shaft drives the filter screen to rotate. When the filter screen rotates, its upper surface contacts the scraping frame. The scraping frame scrapes the pollutants on the scraping frame and aggregates them into the sewage collecting cylinder. The main shaft drives the long cam to rotate. When the long cam rotates, its inclined surface and arc surface contact the semi-circular block and push the semi-circular block to move leftward. The semi-circular block then drives the U-shaped sliding rod and the contact ring to slide leftward. When the long cam moves away from the semi-circular block, the elastic reset effect of the second spring pulls the contact ring to move rightward and reset. The contact ring then drives the U-shaped sliding rod and the semi-circular block to move and reset. As a result, the U-shaped sliding rod slides left and right reciprocally in the sewage discharge pipe and the sewage collecting cylinder. The U-shaped sliding rod then drives the circular scraping plate to move left and right reciprocally and scrape the pollutants in the sewage collecting cylinder into the sewage discharge pipe. When the sewage filtration is completed, the solenoid valve I is opened to discharge the pollutants from the device. When the filter screen rotates, it contacts the steel brush. Friction is generated between the steel brush and the filter screen, and the pollutant particles stuck in the mesh holes of the filter screen are scraped off.

[0007] Preferably, the flocculant adding device includes a support frame. The inner surface of the support frame is fixedly connected with a material conveying pipe. The top end of the material conveying pipe is fixedly connected with a second electromagnetic valve. The top end of the second electromagnetic valve is fixedly connected with a feed hopper. The flocculant adding device further includes an annular blanking sleeve. The circumferential surface of the annular blanking sleeve is fixedly connected with a trapezoidal material spreading box. The inner surface of the bottom of the trapezoidal material spreading box is fixedly connected with an accumulation frame. The lower surface of the trapezoidal material spreading box is fixedly connected with a rotating push rod. The support frame is fixedly connected with the inner wall of the upper filter kettle. The annular blanking sleeve is rotatably connected with the bottom end of the material conveying pipe. The material conveying pipe is fixedly connected with the inner surface of the top end of the upper filter kettle. The bottom end of the rotating push rod is in contact with the inner surface of the transmission sleeve shaft. The upper surface of the annular blanking sleeve is in contact with the lower surface of the support frame. Add the flocculant into the feed hopper. When the flocculant needs to be added during the filtering process, open the second electromagnetic valve. The flocculant falls from the second electromagnetic valve into the material conveying pipe, and then enters the lower filter kettle and the upper filter kettle through the material conveying pipe. The flocculant can improve the flocculation efficiency of the sewage and aggregate the floating substances in the sewage. The flocculant enters the annular blanking sleeve through the material conveying pipe and then enters the trapezoidal material spreading box through the annular blanking sleeve. After the flocculant enters the trapezoidal material spreading box, it slides down along the inclined surface at the bottom of the trapezoidal material spreading box to the side of the trapezoidal material spreading box away from the material conveying pipe. When the flocculant in the trapezoidal material spreading box accumulates to the top of the accumulation frame, it can fall from the accumulation frame into the sewage for flocculation. The long cam rotates to drive the transmission sleeve shaft to rotate circumferentially along the axis of the main shaft. The transmission sleeve shaft drives the rotating push rod to rotate circumferentially. The rotating push rod drives the trapezoidal material spreading box and the annular blanking sleeve to rotate on the material conveying pipe. The trapezoidal material spreading box spreads the flocculant into the sewage during rotation, increasing the material spreading area and further promoting the mixing uniformity and efficiency of the sewage and the flocculant.

[0008] The present invention adopts the above technical solutions and can bring the following beneficial effects: 1. For this industrial sewage high-efficiency filtration and treatment device, the U-shaped electric heating tube can heat the sewage to promote the decomposition of pollutants and separate oily substances. During the heating process, the temperature monitoring table can monitor the temperature inside the lower filter kettle and the upper filter kettle in real time, facilitating precise temperature control and adopting a stepped temperature heating method to improve the efficiency of decomposing pollutants. The stirring paddle stirs the sewage to promote the fluidity of the sewage, thereby improving the uniformity of heat absorption of the sewage and enhancing the effect of pollutant decomposition. The elastic reset function of the first spring pushes the sliding ring and the positioning rod to the left to eject the fixed block and the movable block, so that the fixed block and the movable block are separated. At this time, the mounting seat can be quickly removed from the limiting cylinder, improving the convenience of detecting and replacing the U-shaped electric heating tube.

[0009] 2. For this industrial sewage high-efficiency filtration and treatment device, the main shaft drives the filter screen to rotate. When the filter screen rotates, its upper surface contacts the scraping frame. The scraping frame scrapes the pollutants on the scraping frame and aggregates them into the sewage collection cylinder, preventing the pollutants from accumulating above the filter screen and causing the filtration effect to decline.

[0010] 3. For the high-efficiency industrial sewage filtration and treatment device, the U-shaped slide rod drives the circular scraper to move left and right reciprocally and scrape the pollutants in the sewage collection cylinder into the sewage discharge pipe. When the sewage filtration is completed, the solenoid valve 1 is opened to discharge the pollutants from the device, improving the pollutant treatment efficiency. Friction is generated between the steel brush and the filter screen to scrape off the pollutant particles stuck in the mesh holes of the filter screen, preventing the filter screen from being blocked and further improving the filtration efficiency.

[0011] 4. For the high-efficiency industrial sewage filtration and treatment device, the solenoid valve 2 is opened, and the flocculant falls from the solenoid valve 2 into the feed pipe and then enters the lower filtration kettle and the upper filtration kettle through the feed pipe. The flocculant can improve the sewage flocculation efficiency, aggregate the floating substances in the sewage, improve the filtration effect, and facilitate the treatment of pollutants.

[0012] 5. For the high-efficiency industrial sewage filtration and treatment device, when the flocculant in the trapezoidal feeding box accumulates to the top of the material accumulation frame, it can fall from the material accumulation frame into the sewage for flocculation, increasing the feeding area, improving the mixing efficiency of the flocculant and the sewage, and thus improving the flocculation efficiency. The rotating push rod drives the trapezoidal feeding box to rotate and sprinkle the flocculant into the sewage, further promoting the mixing uniformity and efficiency of the sewage and the flocculant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention; Figure 2 is the front-side three-dimensional semi-sectional structure schematic diagram of the present invention; Figure 3 is the front-side three-dimensional semi-sectional structure schematic diagram of the lower filtration kettle of the present invention; Figure 4 is of the present invention Figure 3 the enlarged structure schematic diagram of A in; Figure 5 is the right-side three-dimensional semi-sectional structure schematic diagram of the stain discharge device of the present invention; Figure 6 is of the present invention Figure 5 the enlarged structure schematic diagram of B in; Figure 7 is the front-side three-dimensional semi-sectional structure schematic diagram of the flocculant adding device of the present invention; Figure 8 is of the present invention Figure 7 the enlarged structure schematic diagram of C in.

[0014] In the figure: 1. Lower filtration kettle; 2. Upper filtration kettle; 3. Limiting cylinder; 4. Mounting seat; 5. U-shaped electric heating tube; 6. Temperature monitoring meter; 7. Stain discharge device; 8. Flocculant adding device; 9. Main shaft; 10. Stirring paddle; 11. Filter screen; 12. Long cam; 13. Movable clamping block; 14. Fixed clamping block; 15. Sleeve; 16. Positioning rod; 17. Sliding ring; 18. L-shaped through groove; 19. Clamping shaft; 71. Drain pipe; 72. Annular support frame; 73. Sewage collecting cylinder; 74. Scraping frame; 75. Solenoid valve 1; 76. U-shaped sliding rod; 77. Contact ring; 78. Semi-circular block; 79. Circular scraping plate; 710. Steel brush; 711. Transmission sleeve shaft; 81. Support frame; 82. Feed pipe; 83. Solenoid valve 2; 84. Feed hopper; 85. Annular blanking housing; 86. Trapezoidal material spreading box; 87. Accumulated material frame; 88. Rotary push rod. Detailed implementation manner

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1-8, an embodiment of the present invention is: an efficient filtration treatment device for industrial sewage, including a lower filtration kettle 1. The upper surface of the lower filtration kettle 1 is connected to an upper filtration kettle 2 through a flange. The upper surface of the upper filtration kettle 2 is fixedly connected with a limiting cylinder 3. The inner surface of the limiting cylinder 3 is sleeved with a mounting seat 4. The lower surface of the mounting seat 4 is fixedly connected with a U-shaped electric heating tube 5. The U-shaped electric heating tube 5 can heat the sewage to promote the decomposition of pollutants and separate oily substances. During the heating process, the temperature monitoring table 6 can monitor the temperature inside the lower filtration kettle 1 and the upper filtration kettle 2 in real time, facilitating precise temperature control and adopting a stepped temperature heating method, which improves the efficiency of decomposing pollutants. A stain discharge device 7 for conveniently discharging inorganic pollutants is arranged on the left side of the lower filtration kettle 1. A flocculant adding device 8 for uniformly adding flocculants is arranged on the top of the upper filtration kettle 2. The inner surface of the bottom end of the lower filtration kettle 1 is rotatably connected with a main shaft 9. The circumferential surface of the main shaft 9 is fixedly connected with stirring paddles 10. The circumferential surface of the main shaft 9 is fixedly connected with a filter net 11. The lower surface of the top of the mounting seat 4 is fixedly connected with a movable clamping block 13. The circumferential surface of the limiting cylinder 3 is fixedly connected with a fixed clamping block 14. The left side surface of the fixed clamping block 14 is fixedly connected with a sleeve 15. The inner surface of the left end of the sleeve 15 is slidably connected with a positioning rod 16. The circumferential surface of the positioning rod 16 is fixedly connected with a sliding ring 17. The upper surface of the sleeve 15 is provided with an L-shaped through groove 18. The circumferential surface of the sliding ring 17 is fixedly connected with a clamping shaft 19. The inner surface of the top end of the upper filtration kettle 2 is fixedly connected with a temperature monitoring table 6. The top end of the main shaft 9 is fixedly connected with a long cam 12. The bottom end of the main shaft 9 is fixedly connected with a motor, and this motor is fixedly connected with the lower surface of the lower filtration kettle 1. The sliding ring 17 slides in the inner surface of the sleeve 15. The inner surfaces of the positioning rod 16 and the movable clamping block 13 are in contact with each other. The inner surfaces of the positioning rod 16 and the fixed clamping block 14 are in contact with each other. A left and right spring one is arranged between the sliding ring 17 and the fixed clamping block 14. The clamping shaft 19 is in contact with the inner surface of the L-shaped through groove 18. The stirring paddles 10 stir the sewage, promoting the fluidity of the sewage, thereby improving the heat uniformity of the sewage and enhancing the decomposition effect of pollutants. The elastic reset function of the spring one pushes the sliding ring 17 and the positioning rod 16 to the left out of the fixed clamping block 14 and the movable clamping block 13, thereby separating the fixed clamping block 14 and the movable clamping block 13. At this time, the mounting seat 4 can be quickly removed from the limiting cylinder 3, improving the convenience of detecting and replacing the U-shaped electric heating tube 5.

[0017] Working principle: After the sewage is input into the lower filter kettle 1 and the upper filter kettle 2, the mounting seat 4 is inserted into the limiting cylinder 3, and the mounting seat 4 drives the U-shaped electric heating tube 5 to be inserted into the lower filter kettle 1 and the upper filter kettle 2. When filtering the sewage, the U-shaped electric heating tube 5 is started. The U-shaped electric heating tube 5 can heat the sewage to promote the decomposition of pollutants and separate the oily substances. During the heating process, the temperature monitoring table 6 can monitor the temperature inside the lower filter kettle 1 and the upper filter kettle 2 in real time, which is convenient for precise temperature control and adopts a stepped temperature heating method, improving the efficiency of decomposing pollutants. The motor is started, the motor drives the main shaft 9 to rotate, the main shaft 9 drives the stirring paddle 10 to rotate, and the stirring paddle 10 stirs the sewage to promote the fluidity of the sewage, thereby improving the uniform heating of the sewage and enhancing the decomposition effect of pollutants. After the mounting seat 4 is inserted into the limiting cylinder 3, the positioning rod 16 is pushed to the right so that the positioning rod 16 is inserted into the fixed clamping block 14 and the movable clamping block 13. At this time, the positioning rod 16 is rotated backward, the positioning rod 16 drives the sliding ring 17 to rotate, and the sliding ring 17 drives the clamping shaft 19 to rotate, so that the clamping shaft 19 is inserted into the right protruding end of the L-shaped through groove 18, and then the sliding ring 17 and the positioning rod 16 are locked in the sleeve 15. After the positioning rod 16 is locked, the fixed clamping block 14 can be locked with the movable clamping block 13, so that the mounting seat 4 can be quickly installed in the limiting cylinder 3. When it is necessary to detect and replace the U-shaped electric heating tube 5, the positioning rod 16 is rotated forward, the positioning rod 16 drives the sliding ring 17 and the clamping shaft 19 to rotate forward, and the clamping shaft 19 disengages from the right protruding end of the L-shaped through groove 18, so that the sliding ring 17 and the positioning rod 16 lose the lock. Then, the elastic reset function of the first spring pushes the sliding ring 17 and the positioning rod 16 to the left out of the fixed clamping block 14 and the movable clamping block 13, and then the fixed clamping block 14 and the movable clamping block 13 are separated. At this time, the mounting seat 4 can be quickly removed from the limiting cylinder 3, further improving the convenience of detecting and replacing the U-shaped electric heating tube 5.

[0018] Please refer to Figures 1-8, on the basis of the above embodiments, in another embodiment of the present invention, the stain discharge device 7 includes a sewage discharge pipe 71. An annular support frame 72 is fixedly connected to the circumferential surface of the filter screen 11. A sewage collection cylinder 73 is fixedly connected to the left inner surface of the lower filter kettle 1. A scraping frame 74 is fixedly connected to the front side of the sewage collection cylinder 73. An electromagnetic valve 75 is fixedly connected to the lower surface of the sewage discharge pipe 71. The main shaft 9 drives the filter screen 11 to rotate. When the filter screen 11 rotates, its upper surface contacts the scraping frame 74. The scraping frame 74 scrapes off the pollutants on the scraping frame 74 and accumulates them in the sewage collection cylinder 73, preventing the pollutants from accumulating above the filter screen 11 and causing the filtration effect to decline. The stain discharge device 7 further includes a U-shaped slide bar 76. A contact ring 77 is fixedly connected to the circumferential surface of the top of the U-shaped slide bar 76. A semi-circular block 78 is fixedly connected to the right end of the top of the U-shaped slide bar 76. A circular scraping plate 79 is fixedly connected to the right end of the bottom of the U-shaped slide bar 76. A steel brush 710 is fixedly connected to the rear side of the bottom of the sewage collection cylinder 73. A transmission sleeve shaft 711 is fixedly connected to the upper surface of the long cam 12. The sewage discharge pipe 71 is fixedly connected to the left side surface of the lower filter kettle 1. The U-shaped slide bar 76 is slidably connected to the left inner surface of the lower filter kettle 1. A second spring is provided between the contact ring 77 and the left side surface of the lower filter kettle 1. The U-shaped slide bar 76 is slidably connected to the left inner surface of the left end of the sewage discharge pipe 71. The circular scraping plate 79 is in contact with the inner surface of the sewage collection cylinder 73. The annular support frame 72 is slidably connected to the inner wall of the lower filter kettle 1. The scraping frame 74 is in contact with the upper surface of the filter screen 11. The steel brush 710 is in contact with the upper surface of the filter screen 11. The U-shaped slide bar 76 drives the circular scraping plate 79 to reciprocate left and right and scrapes the pollutants in the sewage collection cylinder 73 into the sewage discharge pipe 71. When the sewage filtration is completed, the electromagnetic valve 75 is opened to discharge the pollutants from the device, improving the pollutant treatment efficiency. Friction is generated between the steel brush 710 and the filter screen 11, and the pollutant particles stuck in the mesh holes of the filter screen 11 are scraped off, preventing the filter screen 11 from being blocked and further improving the filtration efficiency.

[0019] Working principle: After the sewage enters the lower filter kettle 1 and the upper filter kettle 2 and passes through the filter screen 11, the pollutant particles and oil stains in the sewage are filtered above the filter screen 11. The main shaft 9 drives the filter screen 11 to rotate. When the filter screen 11 rotates, its upper surface contacts the scraping frame 74. The scraping frame 74 scrapes the pollutants on the scraping frame 74 and accumulates them in the sewage collection cylinder 73, preventing the pollutants from accumulating above the filter screen 11 and causing the filtration effect to decline. The main shaft 9 drives the long cam 12 to rotate. When the long cam 12 rotates, its inclined surface and arc surface contact the semi-circular block 78 and push the semi-circular block 78 to move leftward. The semi-circular block 78 then drives the U-shaped sliding rod 76 and the contact ring 77 to slide leftward. When the long cam 12 moves away from the semi-circular block 78, the elastic reset function of the second spring pulls the contact ring 77 to move rightward and reset. The contact ring 77 then drives the U-shaped sliding rod 76 and the semi-circular block 78 to move and reset, thereby enabling the U-shaped sliding rod 76 to slide left and right reciprocally in the sewage discharge pipe 71 and the sewage collection cylinder 73. The U-shaped sliding rod 76 then drives the circular scraping plate 79 to move left and right reciprocally and scrape the pollutants in the sewage collection cylinder 73 into the sewage discharge pipe 71. When the sewage filtration is completed, the solenoid valve 75 is opened to discharge the pollutants from the device, improving the pollutant treatment efficiency. When the filter screen 11 rotates, it contacts the steel brush 710. Friction is generated between the steel brush 710 and the filter screen 11, and the pollutant particles stuck in the mesh holes of the filter screen 11 are scraped off, preventing the filter screen 11 from being blocked and further improving the filtration efficiency.

[0020] Please refer to Figures 1-8, based on the above embodiments, in another embodiment of the present invention, the flocculant adding device 8 includes a support frame 81. The inner surface of the support frame 81 is fixedly connected with a feed pipe 82. The top end of the feed pipe 82 is fixedly connected with a second solenoid valve 83. The top end of the second solenoid valve 83 is fixedly connected with a feed hopper 84. When the second solenoid valve 83 is opened, the flocculant falls into the feed pipe 82 from the second solenoid valve 83, and then enters the lower filtration kettle 1 and the upper filtration kettle 2 through the feed pipe 82. The flocculant can improve the sewage flocculation efficiency, aggregate the floating substances in the sewage, improve the filtration effect, and facilitate the treatment of pollutants. The flocculant adding device 8 further includes an annular feeding sleeve 85. The circumferential surface of the annular feeding sleeve 85 is fixedly connected with a trapezoidal spreading box 86. The inner surface of the bottom of the trapezoidal spreading box 86 is fixedly connected with an accumulating frame 87. The lower surface of the trapezoidal spreading box 86 is fixedly connected with a rotating push rod 88. The support frame 81 is fixedly connected with the inner wall of the upper filtration kettle 2. The annular feeding sleeve 85 is rotatably connected to the bottom end of the feed pipe 82. The feed pipe 82 is fixedly connected with the inner surface of the top end of the upper filtration kettle 2. The bottom end of the rotating push rod 88 is in contact with the inner surface of the transmission sleeve shaft 711. The upper surface of the annular feeding sleeve 85 is in contact with the lower surface of the support frame 81. When the flocculant in the trapezoidal spreading box 86 accumulates to the top of the accumulating frame 87, it can fall into the sewage from the accumulating frame 87 for flocculation, improving the spreading area, the mixing efficiency of the flocculant and the sewage, and thus improving the flocculation efficiency. The rotating push rod 88 drives the trapezoidal spreading box 86 to rotate and sprinkle the flocculant into the sewage, further promoting the mixing uniformity and efficiency of the sewage and the flocculant.

[0021] Working principle: Add the flocculant into the feed hopper 84. When the flocculant needs to be added during the filtration process, open the second solenoid valve 83. The flocculant falls into the feed pipe 82 from the second solenoid valve 83, and then enters the lower filtration kettle 1 and the upper filtration kettle 2 through the feed pipe 82. The flocculant can improve the sewage flocculation efficiency, aggregate the floating substances in the sewage, improve the filtration effect, and facilitate the treatment of pollutants. The flocculant enters the annular feeding sleeve 85 through the feed pipe 82, and then enters the trapezoidal spreading box 86 through the annular feeding sleeve 85. After the flocculant enters the trapezoidal spreading box 86, it slides down along the inclined surface at the bottom of the trapezoidal spreading box 86 to the side of the trapezoidal spreading box 86 away from the feed pipe 82. When the flocculant in the trapezoidal spreading box 86 accumulates to the top of the accumulating frame 87, it can fall into the sewage from the accumulating frame 87 for flocculation, improving the spreading area, the mixing efficiency of the flocculant and the sewage, and thus improving the flocculation efficiency. The long cam 12 rotates to drive the transmission sleeve shaft 711 to rotate circumferentially along the axis of the main shaft 9. The transmission sleeve shaft 711 drives the rotating push rod 88 to rotate circumferentially. The rotating push rod 88 drives the trapezoidal spreading box 86 and the annular feeding sleeve 85 to rotate on the feed pipe 82. The trapezoidal spreading box 86 sprinkles the flocculant into the sewage during the rotation process, improving the spreading area and further promoting the mixing uniformity and efficiency of the sewage and the flocculant.

[0022] The present invention provides an efficient filtration treatment device for industrial sewage. There are many methods and ways to specifically implement this technical solution. The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by existing technologies.

Claims

1. An efficient filtration treatment device for industrial sewage, comprising a lower filtration kettle (1), characterized in that: The upper surface of the lower filtration kettle (1) is connected to an upper filtration kettle (2) through a flange. The upper surface of the upper filtration kettle (2) is fixedly connected with a limiting cylinder (3). The inner surface of the limiting cylinder (3) is sleeved with a mounting seat (4). The lower surface of the mounting seat (4) is fixedly connected with a U-shaped electric heating tube (5). A stain discharge device (7) for conveniently discharging inorganic pollutants is arranged on the left side of the lower filtration kettle (1). A flocculant adding device (8) for uniformly adding flocculant is arranged on the top of the upper filtration kettle (2). The inner surface of the bottom end of the lower filtration kettle (1) is rotatably connected with a main shaft (9). The circumferential surface of the main shaft (9) is fixedly connected with a stirring paddle (10). The circumferential surface of the main shaft (9) is fixedly connected with a filter net (11). The bottom surface of the top of the mounting seat (4) is fixedly connected with a movable clamping block (13). The circumferential surface of the limiting cylinder (3) is fixedly connected with a fixed clamping block (14). The left side surface of the fixed clamping block (14) is fixedly connected with a sleeve (15). The inner surface of the left end of the sleeve (15) is slidably connected with a positioning rod (16). The circumferential surface of the positioning rod (16) is fixedly connected with a sliding ring (17). The upper surface of the sleeve (15) is provided with an L-shaped through groove (18). The circumferential surface of the sliding ring (17) is fixedly connected with a clamping shaft (19).

2. The high-efficiency industrial sewage filtration and treatment device according to claim 1, wherein: A temperature monitoring table (6) is fixedly connected to the inner surface of the top end of the upper filtration kettle (2). A long cam (12) is fixedly connected to the top end of the main shaft (9). The bottom end of the main shaft (9) is fixedly connected with a motor, and this motor is fixedly connected to the lower surface of the lower filtration kettle (1). The sliding ring (17) is slidably connected with the inner surface of the sleeve (15). The inner surfaces of the positioning rod (16) and the movable clamping block (13) are in contact with each other. The inner surfaces of the positioning rod (16) and the fixed clamping block (14) are in contact with each other. A first left and right spring is arranged between the sliding ring (17) and the fixed clamping block (14). The clamping shaft (19) is in contact with the inner surface of the L-shaped through groove (18).

3. The high-efficiency industrial sewage filtration and treatment device according to claim 2, characterized in that: The stain discharge device (7) includes a sewage discharge pipe (71). The circumferential surface of the filter net (11) is fixedly connected with an annular support frame (72). The left side surface of the inner wall of the lower filtration kettle (1) is fixedly connected with a sewage collection cylinder (73). The front side surface of the sewage collection cylinder (73) is fixedly connected with a scraping frame (74). The lower surface of the sewage discharge pipe (71) is fixedly connected with a solenoid valve I (75).

4. The high-efficiency industrial sewage filtration and treatment device according to claim 3, characterized in that: The stain discharge device (7) further includes a U-shaped sliding rod (76). The circumferential surface of the top of the U-shaped sliding rod (76) is fixedly connected with a contact ring (77). The right end of the top of the U-shaped sliding rod (76) is fixedly connected with a semi-circular block (78). The right end of the bottom of the U-shaped sliding rod (76) is fixedly connected with a circular scraping plate (79). The rear side surface of the bottom of the sewage collection cylinder (73) is fixedly connected with a steel brush (710). The upper surface of the long cam (12) is fixedly connected with a transmission sleeve shaft (711).

5. The high-efficiency industrial sewage filtration and treatment device according to claim 4, wherein: The sewage discharge pipe (71) is fixedly connected to the left side surface of the lower filtration kettle (1). The U-shaped sliding rod (76) is slidably connected to the inner surface of the left side of the lower filtration kettle (1). A second spring is arranged between the contact ring (77) and the left side surface of the lower filtration kettle (1). The U-shaped sliding rod (76) is slidably connected to the inner surface of the left end of the sewage discharge pipe (71). The circular scraping plate (79) is in contact with the inner surface of the sewage collection cylinder (73). The annular support frame (72) is slidably connected to the inner wall of the lower filtration kettle (1). The scraping frame (74) is in contact with the upper surface of the filter screen (11). The steel brush (710) is in contact with the upper surface of the filter screen (11).

6. The high-efficiency industrial sewage filtration and treatment device according to claim 5, wherein: The flocculant adding device (8) includes a support frame (81). A feed pipe (82) is fixedly connected to the inner surface of the support frame (81). A second solenoid valve (83) is fixedly connected to the top end of the feed pipe (82). A feed hopper (84) is fixedly connected to the top end of the second solenoid valve (83).

7. The high-efficiency industrial sewage filtration treatment device according to claim 6, wherein: The flocculant adding device (8) further includes an annular blanking sleeve (85). A trapezoidal material spreading box (86) is fixedly connected to the circumferential surface of the annular blanking sleeve (85). An accumulation frame (87) is fixedly connected to the inner surface of the bottom of the trapezoidal material spreading box (86). A rotary push rod (88) is fixedly connected to the lower surface of the trapezoidal material spreading box (86).

8. An efficient filtering and treatment device for industrial sewage according to claim 7, characterized in that: The support frame (81) is fixedly connected to the inner wall of the upper filtration kettle (2). The annular blanking sleeve (85) is rotatably connected to the bottom end of the feed pipe (82). The feed pipe (82) is fixedly connected to the inner surface of the top end of the upper filtration kettle (2). The bottom end of the rotary push rod (88) is in contact with the inner surface of the transmission sleeve shaft (711). The upper surface of the annular blanking sleeve (85) is in contact with the lower surface of the support frame (81).

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