Adding device of polyaluminum chloride for sewage treatment

Abstract

The invention discloses a feeding device of polyaluminum chloride for sewage treatment, and relates to the technical field of sewage treatment.The feeding device comprises a mixing bin, a storage bin and a treatment bin, the mixing bin is fixedly installed at the top of the treatment bin and communicates with the interior of the treatment bin, the storage bin is fixedly installed at the top of the mixing bin, and an air cylinder is fixedly installed at the top of the mixing bin; a push rod is fixedly installed at the output end of the air cylinder, a piston plate located in the mixing bin is fixedly installed at the bottom of the push rod, two sealing grooves are formed in the positions, corresponding to the mixing bin, in the treatment bin, sealing plates are installed in the two sealing grooves, and a stirring mechanism is arranged on the piston plate. According to the sewage treatment device, the stirring effect on water and aluminum chloride powder is improved, the mixing uniformity of the water and the aluminum chloride powder is improved, meanwhile, sewage and a solution in the treatment bin can be stirred, then the reaction speed of the solution and the sewage is increased, and then the sewage treatment effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a polyaluminium chloride dosing device for sewage treatment. Background Art

[0002] When polyaluminium chloride (PAC) is used as a flocculant in sewage treatment, a special dosing device is required to ensure that the agent can be accurately and evenly added to the sewage to achieve the best coagulation effect.

[0003] After searching the Chinese patent with the publication number CN118791103A, a polyaluminium chloride dosing device for sewage treatment is disclosed, which relates to the technical field of sewage treatment. The present invention provides a polyaluminium chloride dosing device for sewage treatment that can adjust the dosing speed according to the flow rate of the water flow. A polyaluminium chloride dosing device for sewage treatment includes a support frame, a fixed frame is fixedly connected to the support frame, a feed roller is rotatably connected to the fixed frame, the feed roller passes through the storage cylinder and is fixedly connected to a variable speed wheel, the fixed frame is slidably connected to a sliding rod, and a lever plate is fixedly connected to the end of the sliding rod. The patent pushes the lever plate through sewage, which can drive the friction wheel to move up and down, so that the rotation speed of the variable speed wheel can be adjusted, and then the rotation speed of the feed roller is adjusted by the variable speed wheel. In this way, the dosing speed can be adjusted, so that the dosage can be changed with the flow rate of the sewage, avoiding the sewage flow rate being too fast, and the limited amount of medicine will affect the treatment effect of the sewage.

[0004] However, the above invention has the following disadvantages:

[0005] When aluminum chloride (PAC) is used as a flocculant, aluminum chloride powder is generally mixed with water to form a solution of a certain concentration, and then added to the sewage. Although the above device can adjust the dosing speed, the above device directly adds solid aluminum chloride, which results in the aluminum chloride not being able to react with the sewage immediately after falling into the sewage. The remaining aluminum chloride easily sinks to the bottom and agglomerates, which results in the aluminum chloride being unable to react completely with the sewage, resulting in poor sewage treatment effect. Summary of the invention

[0006] The object of the present invention is to provide a device for adding polyaluminium chloride for sewage treatment to solve the problems raised in the above-mentioned background technology.

[0007] The technical scheme of the present invention is: a dosing device for polyaluminium chloride for sewage treatment, comprising a mixing bin, a storage bin and a processing bin, wherein the mixing bin is fixedly mounted on the top of the processing bin and communicated with the interior of the processing bin, the storage bin is fixedly mounted on the top of the mixing bin, a cylinder is fixedly mounted on the top of the mixing bin, a push rod is fixedly mounted on the output end of the cylinder, a piston plate located inside the mixing bin is fixedly mounted on the bottom of the push rod, two sealing grooves are provided inside the processing bin at positions corresponding to the mixing bin, sealing plates are installed inside the two sealing grooves, and a stirring mechanism is provided on the piston plate;

[0008] The stirring mechanism includes:

[0009] The movable plate, the piston plate is evenly distributed with a plurality of mounting grooves 1, and the movable plate is movably mounted inside the mounting groove 1 through a torsion spring shaft;

[0010] A fixed magnetic block and an electromagnet, wherein the fixed magnetic block is mounted on the movable plate, and the electromagnet is mounted on the inner wall of the first mounting groove, and the adjacent poles of the fixed magnetic block and the electromagnet are opposite poles;

[0011] A water distribution pipe is fixedly installed on the upper part of the processing bin, and multiple water spray heads are movably installed on the water distribution pipe in an evenly distributed manner. The water spray heads are spherical hollow structures. Multiple water supply pipes are fixedly installed on the top of the processing bin. One end of the water supply pipe runs through the side walls of the mixing bin and the water distribution pipe and is connected to the inside of the water distribution pipe. The other end of the water supply pipe is connected to the inside of the mixing bin. A pressure valve is installed on the end of the water supply pipe close to the mixing bin.

[0012] Preferably, the stirring mechanism also includes a mounting tube, a movable rod, a mounting plate, a mounting shaft one, a movable arm one, a mounting shaft two and a movable arm two. The mounting tube is fixedly mounted inside the processing chamber, the movable rod is movably mounted on the mounting tube, the mounting plate is fixedly sleeved above the side wall of the movable rod, there are multiple mounting shafts one, and the multiple mounting shafts one are evenly distributed and movably mounted on the side wall of the mounting plate, the movable arm one is movably sleeved on the mounting shaft one, the mounting shaft two is movably mounted below the side wall of the mounting tube, and the movable arm two is movably sleeved on the mounting shaft two.

[0013] Preferably, one end of the movable arm 1 is movably connected to one end of the movable arm 2, and a mounting spring 1 is installed inside the mounting tube.

[0014] Preferably, a sewage inlet pipe connected to the interior of the processing bin is fixedly installed above the side wall of the processing bin, a sewage discharge pipe connected to the interior of the processing bin is installed below the side wall of the processing bin, and a water inlet pipe is fixedly installed above the side wall of the mixing bin.

[0015] Preferably, a plurality of mounting grooves 2 are provided on the side wall of the piston plate, a movable bar is movably installed inside the mounting groove 2, and the top of the movable bar is an inclined surface, a mounting spring 2 connected to the movable bar is installed inside the mounting groove 2, and the movable bar is movably installed inside the mounting groove 2 through the mounting spring 2.

[0016] Preferably, a water storage cavity is provided inside the piston plate, the water storage cavity extends to the bottom wall of the piston plate, one end of the movable rod is located inside the water storage cavity, and a plurality of water spray ports are provided on the side wall of the piston plate.

[0017] Preferably, the water spray port is connected to the interior of the water storage cavity, and the movable rod is a hollow structure, and a plurality of check valve tubes are embedded and installed below the side wall of the installation tube.

[0018] Preferably, a cover plate is movably mounted on the storage bin via a rotating shaft, and a feeding mechanism is provided on the storage bin, and the feeding mechanism includes a baffle, a slide rod and a mounting spring.

[0019] Preferably, a movable groove is opened between the mixing bin and the storage bin, the baffle is movably installed inside the movable groove, the side wall of the baffle corresponds to the position of the water inlet pipe, the slide rod is movably installed above the inside of the movable groove, the slide rod passes through the side wall of the baffle, and the installation spring is three-set on the slide rod.

[0020] Preferably, a feed inlet is provided on one side of the interior of the storage bin, and a discharge inlet is provided on the baffle.

[0021] The present invention provides a polyaluminium chloride dosing device for sewage treatment by improvement, which has the following improvements and advantages compared with the prior art:

[0022] First, after the sealing plate of the present invention seals the interior of the mixing bin, the aluminum chloride powder is sent into the interior of the mixing bin, and water is injected into the interior of the mixing bin through the water inlet pipe. Then the cylinder can be started, and the cylinder drives the piston plate to move up and down in the mixing bin through the push rod. At this time, the electromagnet is not energized, and the electromagnet and the fixed magnetic block cannot be adsorbed together. When the piston plate moves in the mixing bin, the piston plate contacts the solution. Under the action of pressure, the movable plate will flip inside the mounting groove one. At this time, the solution can move through the interior of the mounting groove one. As the piston plate moves up and down, the solution will also continuously pass through the interior of the mounting groove one, thereby improving the effect of stirring water and aluminum chloride powder and improving the uniformity of mixing water and aluminum chloride powder.

[0023] Secondly, through the setting of the stirring mechanism, the present invention can control the piston plate to move up and down inside the treatment bin after the sewage enters the interior of the treatment bin. Similarly, the electromagnet is powered off at this time, and the mixed sewage and solution can pass through the interior of the movable plate, thereby stirring the sewage and the solution. At the same time, when the piston plate moves downward, the piston plate will contact the movable rod and the mounting plate, and the piston plate will drive the movable rod and the mounting plate to move downward, thereby causing the movable arm 1 and the movable arm 2 to fold, and the movable rod can squeeze the mounting spring 1 when it moves downward, and when the piston plate moves upward, the mounting spring 1 will release the elastic force to drive the movable rod and the mounting plate to move upward together, and at this time the movable arm 1 and the movable arm 2 will also unfold, and the movement of the movable arm 1 and the movable arm 2 can also stir the sewage and solution inside the treatment bin, thereby accelerating the reaction speed of the solution and sewage, thereby improving the sewage treatment effect.

[0024] Third: In the present invention, the check valve tube allows the sewage inside the treatment bin to enter the interior of the installation pipe, while the sewage inside the installation pipe cannot return to the interior of the treatment bin through the check valve tube, so that when the movable rod moves upward inside the installation pipe, suction will be generated inside the installation pipe, and at this time, the sewage and solution inside the treatment bin can be sucked into the interior of the installation pipe through the check valve tube, and when the movable rod moves downward, the mixed liquid inside the installation pipe will enter the interior of the water storage cavity through the interior of the movable rod, and then be sprayed out through the water nozzle under the action of pressure, and then the mixed liquid below the interior of the treatment bin can be transported to the upper interior of the treatment bin, thereby further improving the mixing effect of the sewage and the solution, and improving the sewage treatment speed.

[0025] Fourthly, in the present invention, when water is injected into the mixing bin through the water inlet pipe, the water sprayed from the water inlet pipe will rush onto the baffle plate, which will move after being impacted, and then move on the slide bar and squeeze the installed spring three. When the baffle plate moves to the discharge port corresponding to the feed port, the aluminum chloride powder inside the storage bin can fall into the interior of the mixing bin through the feed port and the discharge port. At the same time, due to the obstruction of the baffle plate, the water sprayed from the water inlet pipe cannot enter the interior of the storage bin upward, thereby achieving the effect of automatically adding aluminum chloride powder during water injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0031] Figure 5 It is a schematic diagram of the piston plate structure in the present invention;

[0032] Figure 6 For the present invention Figure 2 Enlarged view of point C in the middle;

[0033] Figure 7 For the present invention Figure 2 Enlarged view of point D in the middle.

[0034] Reference numerals:

[0035] 1. Mixing bin; 2. Storage bin; 3. Processing bin; 4. Sewage inlet pipe; 5. Sewage outlet pipe; 6. Water inlet pipe; 7. Cylinder; 8. Push rod; 9. Piston plate; 10. Sealing groove; 11. Sealing plate; 12. Water distribution pipe; 13. Sprinkler head; 14. Water supply pipe; 15. Mounting slot 1; 16. Movable plate; 17. Fixed magnetic block; 18. Electromagnet; 19. Mounting pipe; 20. Movable rod; 21. Mounting plate ; 22. Install shaft one; 23. Movable arm one; 24. Install shaft two; 25. Movable arm two; 26. Install spring one; 27. Install groove two; 28. Movable bar; 29. ​​Install spring two; 30. Water storage cavity; 31. Water spray outlet; 32. Check valve pipe; 36. Cover plate; 37. Movable groove; 38. Baffle; 39. Slide rod; 40. Install spring three; 41. Feed inlet; 42. Feed outlet. DETAILED DESCRIPTION

[0036] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0037] The present invention provides a dosing device for polyaluminium chloride for sewage treatment by improvement. The technical solution of the present invention is:

[0038] like Figures 1 to 4As shown, an embodiment of the present invention provides a dosing device for polyaluminium chloride for sewage treatment, including a mixing bin 1, a storage bin 2 and a treatment bin 3, the mixing bin 1 and the treatment bin 3 are both hollow cylindrical structures, the mixing bin 1 is fixedly mounted on the top of the treatment bin 3 and is connected to the interior of the treatment bin 3, the storage bin 2 is a hollow rectangular structure, the storage bin 2 is fixedly mounted on the top of the mixing bin 1, the storage bin 2 is used to store aluminium chloride powder, a sewage inlet pipe 4 connected to the interior of the treatment bin 3 is fixedly mounted above the side wall of the treatment bin 3, the sewage inlet pipe 4 is used to send sewage into the interior of the treatment bin 3, a sewage discharge pipe 5 connected to the interior of the treatment bin 3 is installed below the side wall of the treatment bin 3, the sewage discharge pipe 5 is used to discharge the treated sewage from the interior of the treatment bin 3, a water inlet pipe 6 is fixedly mounted above the side wall of the mixing bin 1, the water inlet pipe 6 is used to inject water into the interior of the mixing bin 1, and then send the aluminium chloride powder in the storage bin 2 into the mixing bin 1. The interior of the mixing bin 1 is such that the aluminum chloride powder is mixed with water to form a solution, which is then added to the sewage for treatment. A cylinder 7 is fixedly installed on the top of the mixing bin 1, and a push rod 8 is fixedly installed on the output end of the cylinder 7. The push rod 8 is a cylindrical structure. The push rod 8 penetrates downward through the side wall of the mixing bin 1 and is located inside the mixing bin 1. A piston plate 9 is fixedly installed at the bottom of the push rod 8. The piston plate 9 is a circular plate of the same size as the interior of the mixing bin 1. Two sealing grooves 10 are provided in the interior of the processing bin 3 at positions corresponding to the mixing bin 1. The sealing grooves 10 are grooves of a rectangular structure. The interiors of the two sealing grooves 10 are both movably installed with sealing plates 11 through electric push rods. The sealing plates 11 are plates of a rectangular structure. When the two sealing plates 11 are put together, the bottom of the mixing bin 1 can be sealed. At this time, the aluminum chloride powder and water can be mixed into a solution inside the mixing bin 1. A stirring mechanism is provided on the piston plate 9;

[0039] like Figures 2 to 6As shown, the stirring mechanism includes a movable plate 16, a fixed magnetic block 17 and an electromagnet 18. A plurality of mounting grooves 15 are evenly distributed on the piston plate 9. The mounting groove 15 is a rectangular groove. The movable plate 16 is a rectangular block. The movable plate 16 is movably mounted inside the mounting groove 15 through a torsion spring shaft. The fixed magnetic block 17 is a rectangular block. The fixed magnetic block 17 is embedded in the movable plate 16. The electromagnet 18 is embedded in the inner wall of the mounting groove 15. The poles of the fixed magnetic block 17 and the electromagnet 18 are opposite poles. When the sealing plate 11 seals the interior of the mixing bin 1, the aluminum chloride powder is sent into the interior of the mixing bin 1, and at the same time, the aluminum chloride powder is sent to the mixing bin 1 through the water inlet pipe 6. Water is injected into the mixing chamber 1, and then the cylinder 7 can be started. The cylinder 7 drives the piston plate 9 to move up and down inside the mixing chamber 1 through the push rod 8. At this time, the electromagnet 18 is not energized, and the electromagnet 18 and the fixed magnetic block 17 cannot be adsorbed together. When the piston plate 9 moves inside the mixing chamber 1, the piston plate 9 contacts the solution. Under the action of pressure, the movable plate 16 will turn over inside the mounting groove 15. At this time, the solution can move through the inside of the mounting groove 15. As the piston plate 9 moves up and down, the solution will also continuously pass through the inside of the mounting groove 15, thereby improving the stirring effect of water and aluminum chloride powder and improving the uniformity of mixing water and aluminum chloride powder.

[0040] A water distribution pipe 12 is fixedly installed on the upper part of the processing chamber 3. The water distribution pipe 12 is a hollow circular structure. A plurality of water spray heads 13 are evenly distributed and movably installed on the water distribution pipe 12. The water spray heads 13 are spherical hollow structures. A plurality of water supply pipes 14 are fixedly installed on the top of the processing chamber 3. The water supply pipes 14 are tubular structures. One end of the water supply pipes 14 passes through the side walls of the mixing chamber 1 and the water distribution pipe 12 and is connected to the inside of the water distribution pipe 12. The other end of the water supply pipes 14 is connected to the inside of the mixing chamber 1. A pressure valve is installed on the end of the water supply pipe 14 close to the mixing chamber 1. When the solution is mixed in the mixing chamber 1, the piston plate 9 is first driven to move to the upper part of the mixing chamber 1, and then the electromagnet 18 is energized. When the electromagnet 18 is energized, A strong magnetic force will be generated, and the fixed magnetic block 17 and the electromagnet 18 will be attracted together, and then the movable plate 16 will be fixedly installed inside the mounting groove 15. At this time, the piston plate 9 will be driven to move downward, and the piston plate 9 will squeeze the solution inside the mixing chamber 1. When the pressure is greater than the force of the pressure valve on the water supply pipe 14, the solution inside the mixing chamber 1 will enter the water supply pipe 14, and then enter the water distribution pipe 12. Finally, it can be sprayed into the mixing chamber 1 through the water spray head 13 to mix with the sewage. Since there are multiple water spray heads 13, the solution can be evenly sprayed into the mixing chamber 1, which increases the contact range between the solution and the sewage, and achieves the effect of automatically injecting the solution into the sewage after mixing.

[0041] The stirring mechanism also includes a mounting tube 19, a movable rod 20, a mounting plate 21, a mounting shaft 1 22, a movable arm 1 23, a mounting shaft 24 and a movable arm 25. The electromagnet 18 is a hollow cylindrical structure. The mounting tube 19 is fixedly mounted inside the processing chamber 3. The movable rod 20 is a cylindrical structure. The movable rod 20 is movably mounted on the mounting tube 19. The mounting plate 21 is a circular plate. The mounting plate 21 is fixedly sleeved on the side wall of the movable rod 20. The mounting shaft 1 22 is a cylindrical structure. There are a plurality of mounting shafts 22, which are evenly distributed and movably mounted on the side wall of the mounting plate 21. The movable arm 23 is a long strip of rectangular structure, which is movably sleeved on the mounting shaft 22. The mounting shaft 24 is movably mounted below the side wall of the mounting tube 19. The movable arm 25 is a long strip structure, which is movably sleeved on the mounting shaft 24, and one end of the movable arm 23 is movably connected to one end of the movable arm 25. The mounting tube 19 is internally installed with The spring 1 26 is installed. Through the setting of the stirring mechanism, when the sewage enters the interior of the processing chamber 3, the piston plate 9 can be controlled to move up and down inside the processing chamber 3. Similarly, the electromagnet 18 is powered off at this time, and the mixed sewage and solution can pass through the interior of the movable plate 16, thereby stirring the sewage and the solution. At the same time, when the piston plate 9 moves downward, the piston plate 9 will contact the movable rod 20 and the mounting plate 21, and the piston plate 9 drives the movable rod 20 and the mounting plate 21 to move downward, thereby causing the movable arm 1 23 and the movable arm 25 to fold, and the movable rod 20 moves downward to squeeze the installation spring 1 26. When the piston plate 9 moves upward, the installation spring 1 26 will release elastic force to drive the movable rod 20 and the mounting plate 21 to move upward together. At this time, the movable arm 1 23 and the movable arm 25 will also unfold. The movement of the movable arm 1 23 and the movable arm 25 can also stir the sewage and solution inside the processing chamber 3, thereby accelerating the reaction speed of the solution and the sewage;

[0042] A plurality of mounting grooves 27 are provided on the side wall of the piston plate 9. The mounting grooves 27 are grooves of rectangular structure. A movable bar 28 is movably installed inside the mounting grooves 27. The movable bar 28 is a long strip of rectangular structure, and the top of the movable bar 28 is an inclined surface. A mounting spring 29 connected to the movable bar 28 is installed inside the mounting grooves 27. The movable bar 28 is movably installed inside the mounting grooves 27 through the mounting springs 29. When the piston plate 9 is located inside the mixing bin 1, the movable bar 28 will be retracted inside the mounting grooves 27. When the piston plate 9 is located inside the mixing bin 1, the movable bar 28 will extend out of the mounting grooves 27 under the action of the mounting springs 29, thereby stirring the sewage and the solution. When the piston plate 9 returns upward to the inside of the mixing bin 1, the movable bar 28 will be retracted into the mounting grooves 27 due to the squeezing of the inclined surface.

[0043] like Figure 3 , Figure 5 and Figure 6 As shown, a water storage cavity 30 is provided inside the piston plate 9, and the water storage cavity 30 is a cylindrical groove. The water storage cavity 30 extends to the bottom wall of the piston plate 9, and one end of the movable rod 20 is located inside the water storage cavity 30. A plurality of water spraying ports 31 are provided on the side wall of the piston plate 9, and the water spraying ports 31 are connected to the inside of the water storage cavity 30, and the movable rod 20 is a hollow structure. A plurality of check valve tubes 32 are embedded and installed below the side wall of the mounting pipe 19, and the check valve tube 32 allows the sewage inside the processing chamber 3 to enter the inside of the mounting pipe 19, while the sewage inside the mounting pipe 19 cannot return to the processing chamber 3 through the check valve tube 32. , so that when the movable rod 20 moves upward inside the mounting pipe 19, suction will be generated inside the mounting pipe 19, and at this time the sewage and solution inside the treatment chamber 3 can be sucked into the mounting pipe 19 through the check valve pipe 32, and when the movable rod 20 moves downward, the mixed liquid inside the mounting pipe 19 will pass through the inside of the movable rod 20 into the water storage cavity 30, and then be sprayed out through the water spray port 31 under the action of pressure, and then the mixed liquid below the inside of the treatment chamber 3 can be transported to the top of the inside of the treatment chamber 3, thereby further improving the mixing effect of the sewage and the solution, and improving the sewage treatment speed.

[0044] like Figure 2 as well as Figure 7 As shown, a cover plate 36 is movably installed on the storage bin 2 through a rotating shaft, and the cover plate 36 can seal the interior of the storage bin 2. At the same time, aluminum chloride can be supplemented in the storage bin 2 after it is turned over. A feeding mechanism is provided on the storage bin 2, and the feeding mechanism includes a baffle 38, a slide bar 39 and a mounting spring three 40. A movable groove 37 is opened between the mixing bin 1 and the storage bin 2. The movable groove 37 is a groove of a rectangular structure. The baffle 38 is an "L"-shaped plate. The baffle 38 is movably installed in the movable groove 37. The side wall of the baffle 38 corresponds to the position of the water inlet pipe 6. The slide bar 39 is a cylindrical structure. The slide bar 39 is movably installed on the upper part of the movable groove 37. The slide bar 39 passes through the side wall of the baffle 38. The mounting spring three 40 is sleeved on the slide bar 39. A feed port 41 is provided on one side of the interior, and the feed port 41 is an opening of a rectangular structure. A discharge port 42 is provided on the baffle 38, and the discharge port 42 is a rectangular opening. When water is injected into the mixing bin 1 through the water inlet pipe 6, the water sprayed from the water inlet pipe 6 will rush onto the baffle 38. The baffle 38 will move after being impacted, and then move on the slide bar 39 and squeeze the installed spring three 40. When the baffle 38 moves to the discharge port 42 corresponding to the feed port 41, the aluminum chloride powder inside the storage bin 2 can fall into the interior of the mixing bin 1 through the feed port 41 and the discharge port 42. At the same time, due to the obstruction of the baffle 38, the water sprayed from the water inlet pipe 6 cannot enter the interior of the storage bin 2 upward, thereby achieving the effect of automatically adding aluminum chloride powder during water injection.

[0045] Specific implementation steps: After the sealing plate 11 seals the interior of the mixing bin 1, the aluminum chloride powder is fed into the interior of the mixing bin 1, and water is injected into the interior of the mixing bin 1 through the water inlet pipe 6. Then the cylinder 7 can be started, and the cylinder 7 drives the piston plate 9 to move up and down in the mixing bin 1 through the push rod 8. At this time, the electromagnet 18 is not energized, and the electromagnet 18 and the fixed magnetic block 17 cannot be adsorbed together. When the piston plate 9 moves in the mixing bin 1, the piston plate 9 contacts the solution. Under the action of pressure, the movable plate 16 will flip inside the mounting groove 15. At this time, the solution can move through the interior of the mounting groove 15. As the piston plate 9 moves up and down, the solution will also continuously pass through the interior of the mounting groove 15, thereby improving the effect of stirring water and aluminum chloride powder and improving the uniformity of mixing water and aluminum chloride powder.

[0046] By setting the stirring mechanism, when the sewage enters the interior of the treatment chamber 3, the piston plate 9 can be controlled to move up and down inside the treatment chamber 3. Similarly, the electromagnet 18 is powered off at this time, and the mixed sewage and solution can pass through the interior of the movable plate 16, thereby stirring the sewage and the solution. At the same time, when the piston plate 9 moves downward, the piston plate 9 will contact the movable rod 20 and the mounting plate 21, and the piston plate 9 will drive the movable rod 20 and the mounting plate 21 to move downward, thereby causing the movable arm 1 23 and the movable arm 2 25 to fold, and the movable rod 20 moves downward to squeeze the mounting spring 1 26, and when the piston plate 9 moves upward, the mounting spring 1 26 will release the elastic force to drive the movable rod 20 and the mounting plate 21 to move upward together, and at this time, the movable arm 1 23 and the movable arm 25 will also unfold, and the movement of the movable arm 1 23 and the movable arm 2 25 can also stir the sewage and solution inside the treatment chamber 3, thereby accelerating the reaction speed of the solution and the sewage.

[0047] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dosing device for polyaluminium chloride for sewage treatment, comprising a mixing bin (1), a storage bin (2) and a processing bin (3), wherein the mixing bin (1) is fixedly mounted on the top of the processing bin (3) and communicated with the interior of the processing bin (3), and the storage bin (2) is fixedly mounted on the top of the mixing bin (1), characterized in that: A cylinder (7) is fixedly mounted on the top of the mixing chamber (1), a push rod (8) is fixedly mounted on the output end of the cylinder (7), a piston plate (9) located inside the mixing chamber (1) is fixedly mounted on the bottom of the push rod (8), two sealing grooves (10) are provided inside the processing chamber (3) at positions corresponding to the mixing chamber (1), sealing plates (11) are installed inside the two sealing grooves (10), and a stirring mechanism is provided on the piston plate (9); The stirring mechanism includes: The movable plate (16) is provided with a plurality of mounting grooves (15) evenly distributed on the piston plate (9), and the movable plate (16) is movably mounted inside the mounting grooves (15) via a torsion spring shaft; A fixed magnetic block (17) and an electromagnet (18), wherein the fixed magnetic block (17) is mounted on the movable plate (16), and the electromagnet (18) is mounted on the inner wall of the first mounting groove (15), and the adjacent poles of the fixed magnetic block (17) and the electromagnet (18) are opposite poles; A water distribution pipe (12) is fixedly installed above the interior of the processing chamber (3), and a plurality of water spray heads (13) are evenly distributed and movably installed on the water distribution pipe (12), and the water spray heads (13) are spherical hollow structures. A plurality of water supply pipes (14) are fixedly installed on the top of the processing chamber (3), and one end of the water supply pipe (14) passes through the side walls of the mixing chamber (1) and the water distribution pipe (12) and is connected to the interior of the water distribution pipe (12), and the other end of the water supply pipe (14) is connected to the interior of the mixing chamber (1), and a pressure valve is installed at one end of the water supply pipe (14) close to the mixing chamber (1).

2. A dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: The stirring mechanism further comprises a mounting tube (19), a movable rod (20), a mounting plate (21), a mounting shaft one (22), a movable arm one (23), a mounting shaft two (24) and a movable arm two (25); the mounting tube (19) is fixedly mounted inside the processing chamber (3); the movable rod (20) is movably mounted on the mounting tube (19); the mounting plate (21) is fixedly sleeved on the upper side wall of the movable rod (20); there are a plurality of mounting shafts one (22); the plurality of mounting shafts one (22) are evenly distributed and movably mounted on the side wall of the mounting plate (21); the movable arm one (23) is movably sleeved on the mounting shaft one (22); the mounting shaft two (24) is movably mounted on the lower side wall of the mounting tube (19); and the movable arm two (25) is movably sleeved on the mounting shaft two (24).

3. A dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: One end of the movable arm 1 (23) is movably connected to one end of the movable arm 2 (25), and a mounting spring 1 (26) is installed inside the mounting tube (19).

4. The dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: A sewage inlet pipe (4) communicating with the interior of the treatment bin (3) is fixedly mounted above the side wall of the treatment bin (3); a sewage discharge pipe (5) communicating with the interior of the treatment bin (3) is mounted below the side wall of the treatment bin (3); and a water inlet pipe (6) is fixedly mounted above the side wall of the mixing bin (1).

5. The dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: A plurality of mounting grooves (27) are provided on the side wall of the piston plate (9), a movable bar (28) is movably installed inside the mounting groove (27), and the top of the movable bar (28) is an inclined surface, and a mounting spring (29) connected to the movable bar (28) is installed inside the mounting groove (27), and the movable bar (28) is movably installed inside the mounting groove (27) through the mounting spring (29).

6. The dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: The piston plate (9) has a water storage cavity (30) formed inside, the water storage cavity (30) extending to the bottom wall of the piston plate (9), one end of the movable rod (20) is located inside the water storage cavity (30), and a plurality of water spraying ports (31) are formed on the side wall of the piston plate (9).

7. A dosing device for polyaluminium chloride for sewage treatment according to claim 6, characterized in that: The water spray port (31) is connected to the interior of the water storage cavity (30), and the movable rod (20) is a hollow structure. A plurality of check valve tubes (32) are embedded and installed below the side wall of the installation tube (19).

8. The dosing device for polyaluminium chloride for sewage treatment according to claim 1, characterized in that: The storage bin (2) is provided with a cover plate (36) movably mounted on the storage bin (2) via a rotating shaft. The storage bin (2) is provided with a feeding mechanism, which comprises a baffle plate (38), a sliding rod (39) and a mounting spring three (40).

9. A dosing device for polyaluminium chloride for sewage treatment according to claim 8, characterized in that: A movable groove (37) is provided between the mixing bin (1) and the storage bin (2), a baffle (38) is movably mounted inside the movable groove (37), a side wall of the baffle (38) corresponds to the position of the water inlet pipe (6), a slide rod (39) is movably mounted above the inside of the movable groove (37), the slide rod (39) passes through the side wall of the baffle (38), and a mounting spring (40) is sleeved on the slide rod (39).

10. The device for adding polyaluminium chloride for sewage treatment according to claim 9, characterized in that: A feeding port (41) is provided on one side of the interior of the storage bin (2), and a discharging port (42) is provided on the baffle plate (38).

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