Treatment device of cooling water for phosphate production

Abstract

The invention relates to the technical field of cooling water treatment, in particular to a treatment device for cooling water for phosphate production. Comprising an impounding reservoir and a water distribution tank, a water pumping pipeline and a water pump are arranged in the impounding reservoir, water in the impounding reservoir is pumped into the water distribution tank through the water pump, a pesticide spraying structure is arranged on the impounding reservoir, a plurality of water outlet pipelines are arranged on the water distribution tank, and a pressure stabilizing system used for stabilizing the internal pressure of the water distribution tank is connected to the water distribution tank; the problems that a fed medicament easily floats on the water surface of a reservoir and is difficult to be quickly and fully mixed with a water body are effectively solved, and meanwhile, the problems that the interception capacity of existing filtering equipment on fine impurities is limited, and the impurities are easily accumulated on the surface layer of a filtering material to form a filter cake in the filtering process, so that the filtering resistance is quickly increased, and the filtering rate is reduced are solved; the device is convenient to use, a medicament can be rapidly combined with a water body, meanwhile, the filtering efficiency can be greatly improved, and the filter screen blocking risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of cooling water treatment technology, and more specifically to a treatment device for cooling water used in phosphate production. Background Technology

[0002] In the phosphate production process, the crystallization step requires the use of circulating cooling water to cool the crystallization vessel, ensuring stable production and safe equipment operation. Because phosphate production is typically large-scale, the amount of cooling water consumed is considerable. To reduce water consumption and production costs, the industry generally adopts a cooling water recycling model.

[0003] Circulating cooling water introduces various impurities during use. Currently, the industry standard for impurity treatment in circulating cooling water used in phosphate production is a combined process of "chemical dosing and sedimentation + filtration". The chemical dosing and sedimentation stage typically involves adding flocculants (such as polyaluminum chloride, polyacrylamide, etc.) and coagulants to the cooling water. Through adsorption and bridging effects of the chemicals, dispersed fine impurity particles aggregate into larger flocs, which then separate into solids and liquids in the sedimentation tank due to gravity. The supernatant after sedimentation is then filtered to remove residual fine flocs and suspended impurities, ensuring the water quality meets the requirements for reuse.

[0004] Currently, when adding chemicals, the added chemicals tend to float on the surface of the reservoir, making it difficult to mix quickly and thoroughly with the water. The concentration of chemicals in the water is unevenly distributed, and small impurities cannot effectively aggregate to form flocs. Meanwhile, areas with high concentrations of chemicals are prone to producing useless sediments due to excessively high local concentrations. This not only wastes chemicals but also increases the impurity content in the water.

[0005] Although the cooling water after settling removes most of the large particulate impurities, it still contains a certain amount of fine flocs and suspended particles. Existing filtration equipment has limited capacity to retain these fine impurities, and during the filtration process, impurities easily accumulate on the surface of the filter media to form a filter cake, leading to a rapid increase in filtration resistance and a decrease in filtration rate.

[0006] Therefore, the present invention provides a device for treating cooling water used in phosphate production to solve the above-mentioned problems. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, the present invention provides a treatment device for cooling water in phosphate production, which effectively solves the problem that the added reagents tend to float on the surface of the water in the storage tank and are difficult to mix with the water quickly and thoroughly. At the same time, the existing filtration equipment has limited ability to intercept these fine impurities, and during the filtration process, impurities tend to accumulate on the surface of the filter media to form a filter cake, which leads to a rapid increase in filtration resistance and a decrease in filtration rate.

[0008] The solution to the technical problem of the present invention is as follows: a cooling water treatment device for phosphate production, comprising a water storage tank and a water distribution tank, wherein the water storage tank is provided with a water pump and a water pump, and the water pump draws water from the water storage tank into the water distribution tank; the water storage tank is provided with a spraying structure; the water distribution tank is provided with multiple water outlet pipes; and the water distribution tank is connected to a pressure stabilizing system for stabilizing the internal pressure of the water distribution tank. A filter tank is fixedly installed at one end of the water distribution tank. The filter tank and the water distribution tank are connected. The water pumping pipe is fixedly connected inside the filter tank. One end of the water pumping pipe located inside the filter tank is connected to a drive pipe. A drive magnetic pole sleeve is fitted inside the drive pipe. Multiple drive magnets are evenly distributed and connected on the drive magnetic pole sleeve. A spiral drive fan blade is rotatably connected inside the drive pipe. Both ends of the spiral drive fan blade are fixedly connected to the drive magnetic pole sleeve. The filter tank is provided with a water filter shell, and an annular filter screen is rotatably connected inside the water filter shell. A driven magnetic pole sleeve is fixedly connected to the inner side of the annular filter screen. The driven magnetic pole sleeve is sleeved on the outside of the driving magnetic pole sleeve. Multiple driven magnets corresponding to the driving magnet are fixedly installed on the inner side wall of the driven magnetic pole sleeve. The end of the drive pipe away from the pumping pipe is connected to a filter pipe, and the other end of the filter pipe extends from inside the filter tank and connects to the top of the filter housing. A flushing and drain outlet is provided on one side of the filter housing.

[0009] Preferably, the annular filter screen is provided with a plurality of raised triangular filter plates, and one of the raised ends of the triangular filter plates contacts the inner wall of the filter housing.

[0010] Preferably, the filter housing is provided with a cleaning port, and a cleaning device for cleaning the annular filter screen and the triangular filter plate is fixedly installed on the cleaning port; The cleaning device includes a cleaning plug fixedly installed on the cleaning port. The cleaning plug is hollow and open on both sides. A cleaning frame is slidably connected inside the cleaning plug on the side closest to the cleaning port. A cleaning brush is installed on the cleaning frame. A pressure spring is installed between the cleaning frame and the cleaning plug. The pressure spring is used to push the cleaning frame to move closer to the annular filter screen, so that the cleaning brush and the annular filter screen come into contact. A return water pipe is provided on the side of the cleaning plug away from the cleaning port. The other end of the return water pipe is located inside the water storage tank. The cleaning brush plate has multiple drainage outlets.

[0011] Preferably, there are two cleaning brushes, and the two cleaning brushes are symmetrically arranged on the cleaning frame, and a compression spring is provided between the cleaning brushes and the cleaning frame; Multiple evenly arranged filter protrusions are fixedly connected to both sides of the annular filter screen, and a brush plate protrusion that cooperates with the filter protrusions is fixedly connected to the side of the cleaning brush plate that is far away from each other.

[0012] Preferably, the pressure stabilization system includes a water pressure sensor installed inside the water distribution tank. The water pressure sensor is electrically connected to the control module, and the water pump is electrically connected to the control module. The water pressure sensor sends an electrical signal to the control module to control the water pump, thereby stabilizing the water pressure inside the water distribution tank.

[0013] Preferably, a one-way flow structure is provided between the filter tank and the water distribution tank. The one-way flow structure includes a conical baffle plate fixedly connected to the filter tank. The conical baffle plate has a connecting hole in the middle. The side of the conical baffle plate with a larger diameter faces the water distribution tank. A one-way blocking ball is provided inside the conical baffle plate. Multiple limiting claws for limiting the one-way blocking ball are fixedly connected inside the conical baffle plate.

[0014] Preferably, the spraying structure includes a support frame fixedly connected to the water storage tank, a spraying mounting plate rotatably connected to the support frame, a drive motor fixedly mounted on the support frame, and the shaft end of the drive motor fixedly connected to the center position of the spraying mounting plate. Both sides of the spraying mounting plate are equipped with vertical spraying barrels arranged longitudinally. Each spraying barrel has a cavity inside and multiple spray outlets arranged longitudinally on the spraying barrel, which communicate with the cavity.

[0015] Preferably, a pressure discharge tank is fixedly connected inside the spraying vertical tank. The pressure discharge tank is hollow, and a vertically installed connecting pipe is provided at the lower end of the pressure discharge tank. Multiple nozzles that cooperate with the discharge port are provided on the connecting pipe. A hydraulic cylinder is fixedly connected inside the pressure discharge tank. A frustum-shaped piston is fixedly connected to the extended end of the hydraulic cylinder, and the diameter of the lower end of the piston is larger than the diameter of its upper end.

[0016] Preferably, the lower end of the pressure discharge tank is provided with a funnel-shaped check valve, the check valve is hollow, and the lower half of the check valve is movably provided with a float ball for blocking the connection of the check valve, the float ball is hollow, and the diameter of the float ball is larger than the diameter of the connection in the middle of the check valve.

[0017] Preferably, the pressure discharge tank is provided with a drug inlet pipe and a drug outlet pipe on both sides, which are connected to the pressure discharge tank. Both the drug inlet pipe and the drug outlet pipe are made of transparent material.

[0018] The beneficial effects of this invention are as follows: This invention achieves cleaning of the annular filter screen by adding a filter tank, drive pipe, drive magnetic pole sleeve, drive magnet, spiral drive fan blade, filter housing, annular filter screen, driven magnetic pole sleeve, driven magnet, filter pipe, and flushing outlet. This is achieved by using the impact force of water pumped by a water pump to impact the spiral drive fan blade, which in turn rotates via the drive magnet and driven magnet, causing the annular filter screen to rotate. This cleaning process does not affect the filtration effect and effectively solves the problems of existing filtration equipment having limited ability to retain fine impurities, and impurities easily accumulating on the filter media surface to form a filter cake during filtration, leading to a rapid increase in filtration resistance and a decrease in filtration rate. Further cleaning of the annular filter screen can be achieved by adding a cleaning head, cleaning frame, cleaning brush plate, and pressure spring; By adding a water pressure sensor and control module, the problem of insufficient circulating cold water when the water distribution tank provides cooling to multiple production lines or when the cooling demand is large can be solved, while the problem of water pump overpressure when the cooling demand is small or the water supply to the production line is reduced can be solved, thus affecting the service life of the water pump. By adding a spraying mounting plate, drive motor, spraying vertical tank, cavity, outlet, pressure discharge tank, connecting pipe, nozzle, hydraulic cylinder, and piston, the problem of the added pesticides floating on the surface of the reservoir during dosing is solved. This makes it difficult for the added pesticides to mix quickly and thoroughly with the water, resulting in uneven pesticide concentration distribution in the water. Fine impurities cannot effectively aggregate to form flocs, while areas with high pesticide concentration are prone to producing useless sediment due to excessively high local concentrations. This not only wastes pesticides but also increases the impurity content in the water.

[0019] This invention is easy to use, enabling the agent to quickly combine with water, while greatly improving filtration efficiency and reducing the risk of filter clogging. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall assembly of the present invention; Figure 2 This is a schematic diagram of the overall installation structure of the water distribution tank of the present invention; Figure 3 This is a cross-sectional schematic diagram of the internal structure of the filter tank of the present invention; Figure 4This is a schematic diagram of the installation position of the annular filter screen of the present invention; Figure 5 This is an exploded view of the internal driving structure of the annular filter screen of the present invention; Figure 6 This is a cross-sectional schematic diagram of the filter housing of the present invention; Figure 7 This is a cross-sectional schematic diagram of the annular filter screen of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged view of a portion of point A in the middle; Figure 9 This is a schematic diagram of the assembly position of the cleaning brush plate of the present invention; Figure 10 This is a schematic diagram of the water storage tank of the present invention; Figure 11 This is a cross-sectional schematic diagram of the internal structure of the spraying vertical barrel of the present invention; Figure 12 This is a cross-sectional schematic diagram of the spraying vertical barrel of the present invention; Figure 13 This is a schematic diagram of the pressure discharging tank of the present invention.

[0022] In the diagram, 1. Water storage tank; 2. Water distribution tank; 3. Pumping pipe; 4. Pump; 5. Outlet pipe; 6. Filter tank; 7. Drive pipe; 8. Drive magnetic pole sleeve; 9. Drive magnet; 10. Spiral drive fan blade; 11. Filter housing; 12. Annular filter screen; 13. Driven magnetic pole sleeve; 14. Driven magnet; 15. Filter pipe; 16. Flushing and drain outlet; 17. Triangular filter plate; 18. Cleaning port; 19. Cleaning plug; 20. Cleaning frame; 21. Cleaning brush; 22. Downward pressure spring; 3. Return water pipe; 24. Drain outlet; 25. Compression spring; 26. Filter screen protrusion; 27. Brush plate protrusion; 28. Conical baffle; 29. ​​Connecting hole; 30. One-way stop ball; 31. Limiting claw; 32. Support frame; 33. Sprayer mounting plate; 34. Drive motor; 35. Sprayer vertical tank; 36. Sprayer outlet; 38. Pressure discharge tank; 39. Connecting pipe; 40. Nozzle; 41. Hydraulic cylinder; 42. Piston; 43. Check valve; 44. Float ball; 45. Inlet pipe; 46. Exhaust pipe. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0028] Example 1, refer to the appendix of the instruction manual. Figure 1-13 A cooling water treatment device for phosphate production includes a water storage tank 1 and a water distribution tank 2. The water storage tank 1 is equipped with a water pumping pipe 3 and a water pump 4. The water pump 4 pumps water from the water storage tank 1 into the water distribution tank 2. The water storage tank 1 is equipped with a spraying structure. The water distribution tank 2 is equipped with multiple water outlet pipes 5. The water pipes 5 are connected to the cooling system of the production line. The water pipes 5 are equipped with valves. The valves are opened when needed and closed when not needed. The water distribution tank 2 is connected to a pressure stabilizing system for stabilizing the internal pressure of the water distribution tank 2. The pressure stabilization system includes a water pressure sensor installed inside the water distribution tank 2. The water pressure sensor is electrically connected to the control module, and the water pump 4 is electrically connected to the control module. The water pressure sensor sends an electrical signal to the control module to control the water pump 4, thereby stabilizing the water pressure inside the water distribution tank 2.

[0029] During use, cooling water is pumped from the water storage tank 1 into the water distribution tank 2. When the pressure inside the water distribution tank 2 reaches the predetermined pressure value, the water pressure sensor sends a signal to the control module. The control module controls the water pump 4 to reduce its power and reduce the pumping volume until the pressure inside the water distribution tank 2 is within the predetermined range.

[0030] A filter tank 6 is fixedly installed at one end of the water distribution tank 2. The filter tank 6 and the water distribution tank 2 are connected. The water pumping pipe 3 is fixedly connected inside the filter tank 6. One end of the water pumping pipe 3 located inside the filter tank 6 is connected to the drive pipe 7. The drive pipe 7 is fitted with a drive magnetic pole sleeve 8. Multiple drive magnets 9 are evenly distributed on the drive magnetic pole sleeve 8. A spiral drive fan blade 10 is rotatably connected inside the drive pipe 7. Both ends of the spiral drive fan blade 10 are fixedly connected to the drive magnetic pole sleeve 8. The filter tank 6 is provided with a water filter housing 11. An annular filter screen 12 is rotatably connected inside the water filter housing 11. A driven magnetic pole sleeve 13 is fixedly connected to the inner side of the annular filter screen 12. The driven magnetic pole sleeve 13 is sleeved on the outer side of the driving magnetic pole sleeve 8. Multiple driven magnets 14 corresponding to the driving magnets 9 are fixedly installed on the inner wall of the driven magnetic pole sleeve 13. During operation, the water pump 4 draws water from the reservoir 1 into the pumping pipe 3. The water in the pumping pipe 3 then enters the drive pipe 7. The water flow passes through the spiral drive blade 10, causing it to rotate. As the spiral drive blade 10 rotates, it drives the drive magnetic pole sleeve 8 to rotate. The drive magnet 9 on the drive magnetic pole sleeve 8 rotates synchronously. Under the action of magnetic force, the drive magnet 9 drives the driven magnet 14 to rotate. The driven magnet 14 then drives the driven magnetic pole sleeve 13 to rotate, which in turn drives the annular filter screen 12 to rotate. This achieves the rotation of the annular filter screen 12. The rotation speed of the spiral drive blade 10 is controlled according to the water flow rate of the water pump 4, thereby adjusting the rotation speed of the annular filter screen 12 in real time and improving the filtration efficiency. This is based on the principle of a magnetic coupler.

[0031] One end of the drive pipe 7 away from the pumping pipe 3 is connected to the filter pipe 15. The other end of the filter pipe 15 passes through the inside of the filter tank 6 and connects to the top of the filter housing 11. When water flows through the drive pipe 7, it enters the filter pipe 15 and then enters the top of the filter housing 11. When cooling water enters the filter housing 11, the annular filter screen 12 filters the entering cooling water in real time. A flushing and drain port 16 is provided on one side of the filter housing 11. When the filter tank 6 is filled with water, the pressure inside the filter tank 6 increases. The flushing and drain port 16 is designed to be elongated, and the water pump 4 pumps water at a rate much greater than the water output of the flushing and drain port 16. Under the action of water pressure, water is forced out from inside the filter tank 6. After the water flows through the annular filter screen 12, it carries the impurities attached to the outer wall of the annular filter screen 12 out through the flushing and drain port 16. The flushing and drain port 16 is connected to an impurity collection device (collection box, collection pool, etc.) for subsequent treatment.

[0032] The annular filter screen 12 is provided with multiple raised triangular filter plates 17. One raised end of the triangular filter plate 17 contacts the inner wall of the filter housing 11. When the filter tank 6 is filled with water, impurities floating between the annular filter screen 12 and the filter housing 11 are pushed to the flushing drain port 16 by the triangular filter plates 17. Under the action of water flow, the annular filter screen 12 and the triangular filter plates 17 are flushed in reverse, thereby cleaning the impurities attached to the surface of the annular filter screen 12 and the triangular filter plates 17.

[0033] In embodiment 2, a cleaning port 18 is provided on the water filter housing 11, and a cleaning device for cleaning the annular filter screen 12 and the triangular filter plate 17 is fixedly installed on the cleaning port 18. The cleaning device includes a cleaning plug 19 fixedly installed on the cleaning port 18. The cleaning plug 19 is hollow and has openings on both sides. A cleaning frame 20 is slidably connected inside the cleaning plug 19 on the side closer to the cleaning port 18. A cleaning brush plate 21 is installed on the cleaning frame 20. A pressure spring 22 is installed between the cleaning frame 20 and the cleaning plug 19. The pressure spring 22 is used to push the cleaning frame 20 to move closer to the annular filter screen 12, so that the cleaning brush plate 21 contacts the annular filter screen 12. A return water pipe 23 is provided on the side of the cleaning plug 19 away from the cleaning port 18. The other end of the return water pipe 23 is located inside the water storage tank 1. The cleaning brush plate 21 has multiple drainage outlets 24, which reduces the obstruction of the cleaning brush plate 21 and allows water and impurities to flow out normally from the cleaning plug 19.

[0034] In use, the cleaning frame 20 is pushed towards the annular filter screen 12 by the pressure spring 22, so that the cleaning brush plate 21 contacts the annular filter screen 12. When the annular filter screen 12 rotates, the cleaning brush plate 21 cleans the annular filter screen 12. When the cleaning brush plate 21 contacts the triangular filter plate 17, the triangular filter plate 17 pushes the cleaning brush plate 21 away from the annular filter screen 12, thereby further cleaning the surface of the annular filter screen 12 and the triangular filter plate 17 and reducing the adhering impurities. At the same time, the water inside the filter tank 6 flows into the cleaning plug 19 through the cleaning port 18 to rinse the cleaning brush plate 21, the annular filter screen 12 and the triangular filter plate 17. The rinsed water re-enters the water storage tank 1 through the return water pipe 23, thereby reducing water waste.

[0035] Two cleaning brushes 21 are provided, and the two cleaning brushes 21 are symmetrically arranged on the cleaning frame 20. A compression spring 25 is provided between the cleaning brushes 21 and the cleaning frame 20. In the initial state, the compression spring 25 pushes the two cleaning brushes 21 to move away from each other. Multiple evenly arranged filter protrusions 26 are fixedly connected to both sides of the annular filter screen 12, and a brush plate protrusion 27 that cooperates with the filter protrusions 26 is fixedly connected to the side of the cleaning brush plate 21 that is far away from each other.

[0036] In use, when the annular filter screen 12 rotates, the filter screen protrusion 26 rotates synchronously with the annular filter screen 12 and contacts the brush plate protrusion 27. After the filter screen protrusion 26 and the brush plate protrusion 27 contact, the annular filter screen 12 continues to rotate, and the filter screen protrusion 26 pushes the brush plate protrusion 27 to move closer to the center of the cleaning frame 20, squeezing the compression spring 25. When the filter screen protrusion 26 and the brush plate protrusion 27 lose contact, the compression spring 25 pushes the cleaning brush plate 21 to move away from each other again. This reciprocating lateral movement brushes the annular filter screen 12 and the triangular filter plate 17 to improve cleaning efficiency.

[0037] In embodiment three, a one-way flow structure is provided between the filter tank 6 and the water distribution tank 2. The one-way flow structure includes a conical baffle 28 fixedly connected to the filter tank 6. A connecting hole 29 is opened in the middle of the conical baffle 28. The side of the conical baffle 28 with a larger diameter faces the water distribution tank 2. A one-way blocking ball 30 is provided inside the conical baffle 28. Multiple limiting claws 31 for limiting the one-way blocking ball 30 are fixedly connected inside the conical baffle 28.

[0038] During use, cooling water enters the filter tank 6, passes through the connecting hole 29, and enters the water distribution tank 2. At this time, the water flow pushes the one-way plug ball 30 to move away from the connecting hole 29, causing the one-way plug ball 30 to separate from the connecting hole 29. The limiting claw 31 restricts the one-way plug ball 30 to its current position to prevent it from drifting with the water flow. When the water pressure inside the water distribution tank 2 is greater than the water pressure inside the filter tank 6, the water flows from the water distribution tank 2 into the filter tank 6. At this time, the one-way plug ball 30 moves with the water flow towards the connecting hole 29 until it blocks the connecting hole 29, referring to the principle of a one-way valve.

[0039] Example 4: The spraying structure includes a support frame 32 fixedly connected to the water storage tank 1, a spraying mounting plate 33 rotatably connected to the support frame 32, a drive motor 34 fixedly mounted on the support frame 32, and the shaft end of the drive motor 34 fixedly connected to the center position of the spraying mounting plate 33. Both sides of the spraying mounting plate 33 are equipped with vertical spraying barrels 35 arranged longitudinally. Each spraying barrel 35 has a cavity inside and multiple spraying ports 36 arranged longitudinally on the spraying barrel 35 that communicate with the cavity.

[0040] The spraying vertical tank 35 is internally connected to a pressure discharge tank 38, which is hollow. The lower end of the pressure discharge tank 38 is provided with a vertically installed connecting pipe 39. Multiple nozzles 40 that cooperate with the discharge port 36 are provided on the connecting pipe 39. The pressure discharge tank 38 is internally connected to a hydraulic cylinder 41, and the extended end of the hydraulic cylinder 41 is fixedly connected to a frustum-shaped piston 42. The piston 42 is made of rubber, and the diameter of the lower end of the piston 42 is larger than the diameter of its upper end.

[0041] The lower end of the pressure discharge tank 38 is provided with a funnel-shaped check valve 43. The check valve 43 is hollow, and the lower half of the check valve 43 is movably provided with a float 44 for blocking the connection of the check valve 43. The float 44 is hollow, and the diameter of the float 44 is larger than the diameter of the connection in the middle of the check valve 43.

[0042] In use, the drive motor 34 drives the spraying mounting plate 33 to rotate, the spraying vertical barrel 35 is vertically inserted into the water, and the pesticide is placed inside the pressure discharge barrel 38. When the spraying mounting plate 33 rotates, the hydraulic cylinder 41 is activated to push the piston 42 downward at a constant speed. The pesticide inside the pressure discharge barrel 38 passes through the check valve barrel 43 at a constant speed, pushing the float 44 downward so that the float 44 cannot block the connection of the check valve barrel 43. Then the pesticide enters the nozzle 40 through the connecting pipe 39. It is then sprayed into water at different depths to improve the mixing effect of the agent and the water. At the same time, the spraying vertical tank 35 rotates in the water, stirring the water and further improving the mixing effect.

[0043] After use, the float 44 is pushed upward by buoyancy to block the connection of the check valve 43. The hydraulic cylinder 41 pulls the piston 42 upward in the opposite direction. Under the action of air pressure, the float 44 is firmly attached to the connection of the check valve 43. At this time, the pressure discharge tank 38 is in a sealed state. The hydraulic cylinder 41 pulls the piston 42 upward. Under the action of air pressure, the bottom of the piston 42 deforms. Air enters the interior of the pressure discharge tank 38 through the deformed position until the piston 42 returns to the initial position.

[0044] The pressure discharge tank 38 has a drug inlet pipe 45 and an exhaust pipe 46 on both sides, which are connected to the pressure discharge tank 38. Both the drug inlet pipe 45 and the exhaust pipe 46 are made of transparent material.

[0045] When piston 42 returns to its initial position, the medicine is added from inside the medicine inlet pipe 45, and the air inside the pressure discharge tank 38 is discharged from the exhaust pipe 46. When the medicine inside the pressure discharge tank 38 is full, the medicine will flow out from the exhaust pipe 46. This is used to determine whether the medicine is full. Both the medicine inlet pipe 45 and the exhaust pipe 46 are made of transparent material, which makes it easy to observe whether the medicine is full.

[0046] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for treating cooling water used in phosphate production, comprising a water storage tank (1) and a water distribution tank (2), wherein the water storage tank (1) is equipped with a water pumping pipe (3) and a water pump (4), the water pump (4) pumps water from the water storage tank (1) into the water distribution tank (2), and the water storage tank (1) is equipped with a spraying structure, characterized in that, The water distribution tank (2) is provided with multiple water outlet pipes (5), and the water distribution tank (2) is connected to a pressure stabilizing system for stabilizing the internal pressure of the water distribution tank (2); A filter tank (6) is fixedly installed at one end of the water distribution tank (2). The filter tank (6) and the water distribution tank (2) are connected. The water pumping pipe (3) is fixedly connected inside the filter tank (6). One end of the water pumping pipe (3) located inside the filter tank (6) is connected to a drive pipe (7). A drive magnetic pole sleeve (8) is fitted inside the drive pipe (7). Multiple drive magnets (9) are evenly distributed on the drive magnetic pole sleeve (8). A spiral drive fan blade (10) is rotatably connected inside the drive pipe (7). Both ends of the spiral drive fan blade (10) are fixedly connected to the drive magnetic pole sleeve (8). The filter tank (6) is provided with a water filter housing (11), and an annular filter screen (12) is rotatably connected inside the water filter housing (11). A driven magnetic pole sleeve (13) is fixedly connected to the inner side of the annular filter screen (12). The driven magnetic pole sleeve (13) is sleeved on the outside of the driving magnetic pole sleeve (8). A plurality of driven magnets (14) corresponding to the driving magnet (9) are fixedly installed on the inner side wall of the driven magnetic pole sleeve (13). The drive pipe (7) is connected to a filter pipe (15) at one end away from the pumping pipe (3), and the other end of the filter pipe (15) extends out from inside the filter tank (6) and connects to the top of the filter housing (11). The filter housing (11) has a flushing and drain port (16) on one side.

2. The device for treating cooling water for phosphate production according to claim 1, characterized in that, The annular filter screen (12) is provided with a plurality of protruding triangular filter plates (17), and one protruding end of the triangular filter plate (17) is in contact with the inner wall of the water filter housing (11).

3. The cooling water treatment device for phosphate production according to claim 2, characterized in that, The filter housing (11) is provided with a cleaning port (18), and a cleaning device for cleaning the annular filter screen (12) and the triangular filter plate (17) is fixedly installed on the cleaning port (18); The cleaning device includes a cleaning plug (19) fixedly installed on the cleaning port (18). The cleaning plug (19) is hollow and open on both sides. A cleaning frame (20) is slidably connected to the side of the cleaning plug (19) closest to the cleaning port (18). A cleaning brush plate (21) is installed on the cleaning frame (20). A pressure spring (22) is installed between the cleaning frame (20) and the cleaning plug (19). The pressure spring (22) is used to push the cleaning frame (20) to move closer to the annular filter screen (12) so that the cleaning brush plate (21) and the annular filter screen (12) come into contact. A return water pipe (23) is provided on the side of the cleaning plug (19) away from the cleaning port (18). The other end of the return water pipe (23) is located inside the water storage tank (1). The cleaning brush (21) has multiple drainage outlets (24).

4. The cooling water treatment device for phosphate production according to claim 3, characterized in that, The cleaning brush plate (21) is provided in two, and the two cleaning brush plates (21) are symmetrically arranged on the cleaning frame (20). A compression spring (25) is provided between the cleaning brush plate (21) and the cleaning frame (20). The annular filter (12) has multiple uniformly arranged filter protrusions (26) fixedly connected to both sides, and the cleaning brush (21) has a brush protrusion (27) that cooperates with the filter protrusions (26) fixedly connected to the side that is far away from each other.

5. The cooling water treatment device for phosphate production according to claim 1, characterized in that, The pressure stabilization system includes a water pressure sensor installed inside the water distribution tank (2). The water pressure sensor is electrically connected to the control module, and the water pump (4) is electrically connected to the control module. The water pressure sensor sends an electrical signal to the control module to control the water pump (4), thereby achieving stable water pressure inside the water distribution tank (2).

6. The device for treating cooling water for phosphate production according to claim 1, characterized in that, A one-way flow structure is provided between the filter tank (6) and the water distribution tank (2). The one-way flow structure includes a conical baffle plate (28) fixedly connected to the filter tank (6). A connecting hole (29) is provided in the middle of the conical baffle plate (28). The side of the conical baffle plate (28) with a larger diameter faces the water distribution tank (2). A one-way blocking ball (30) is provided inside the conical baffle plate (28). A plurality of limiting claws (31) for limiting the one-way blocking ball (30) are fixedly connected inside the conical baffle plate (28).

7. The cooling water treatment device for phosphate production according to claim 1, characterized in that, The spraying structure includes a support frame (32) fixedly connected to the water storage tank (1), a spraying mounting plate (33) rotatably connected to the support frame (32), a drive motor (34) fixedly installed on the support frame (32), and the shaft end of the drive motor (34) fixedly connected to the center position of the spraying mounting plate (33). Both sides of the spraying installation plate (33) are equipped with vertical spraying barrels (35) arranged longitudinally. The spraying barrels (35) have cavities inside and multiple spraying ports (36) that communicate with the cavities are arranged longitudinally on the spraying barrels (35).

8. The cooling water treatment apparatus for phosphate production according to claim 7, characterized in that, The spraying vertical barrel (35) is fixedly connected to a pressure discharge barrel (38). The pressure discharge barrel (38) is hollow. A vertically installed connecting pipe (39) is provided at the lower end of the pressure discharge barrel (38). Multiple nozzles (40) that cooperate with the discharge port (36) are provided on the connecting pipe (39). A hydraulic cylinder (41) is fixedly connected to the inside of the pressure discharge barrel (38). A frustum-shaped piston (42) is fixedly connected to the extended end of the hydraulic cylinder (41), and the diameter of the lower end of the piston (42) is larger than the diameter of its upper end.

9. A cooling water treatment device for phosphate production according to claim 8, characterized in that, The lower end of the pressure discharge tank (38) is provided with a funnel-shaped check valve (43). The check valve (43) is hollow, and the lower half of the check valve (43) is movably provided with a float (44) for blocking the connection of the check valve (43). The float (44) is hollow, and the diameter of the float (44) is larger than the diameter of the connection in the middle of the check valve (43).

10. A treatment apparatus for cooling water in phosphate production according to claim 8, characterized in that, The pressure discharge tank (38) is provided with a drug inlet pipe (45) and an exhaust pipe (46) on both sides, which are connected to the pressure discharge tank (38). Both the drug inlet pipe (45) and the exhaust pipe (46) are made of transparent material.

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