A cooling water treatment device for an aluminum processing cold rolling mill

Abstract

The present application relates to the technical field of cooling water treatment of cold rolling mill, in particular to a kind of aluminium processing cold rolling mill cooling water treatment device, including cylinder, the inside of cylinder is coaxially provided with rotatable feed pipe, and sleeve rod assembly is slidably arranged on feed pipe, and paddle is arranged on sleeve rod assembly, and water hole is opened on the feed pipe in sleeve rod assembly;The telescopic sleeve assembly of vertical displacement adjustment is equipped in the above of paddle in the cylinder, and the top of telescopic sleeve assembly is equipped with float positioning assembly;The inner bottom wall of cylinder is equipped with butt joint cylinder assembly, and butt joint cylinder assembly is linked with feed pipe;Floating material pipe assembly is arranged on butt joint cylinder assembly, and telescopic sleeve assembly and floating material pipe assembly are driven cooperation.The present application integrates dispersion mixing and up-down convection circulation mechanism, realizes the fast homogeneous mixing of cooling medium and medicament through the synergistic effect of paddle pumping, pusher rod lifting and floating material pipe injection, solves the problems of uneven mixing and poor cooling medium purification effect of traditional device.

Description

Technical Field

[0001] This invention relates to the field of cooling water treatment technology for cold rolling mills, and more specifically to a cooling water treatment device for aluminum processing cold rolling mills. Background Technology

[0002] During cold rolling, a continuous spray of cooling medium is required to cool, lubricate, and flush away iron oxide scale, ensuring the surface quality of the strip and extending the service life of the rolls. After use, the cooling water may become contaminated with rolling oil, iron filings, and emulsified impurities, easily causing problems such as nozzle clogging and oil stains on the strip surface.

[0003] Existing traditional cold rolling cooling medium purification processes mostly employ a mixing system with reagent addition and paddle mechanical stirring. However, during the use of this equipment, the mixing effect of the upper and lower media is poor, resulting in poor uniformity of cooling medium treatment. If the mixing time is extended in order to improve the uniformity of media treatment, the mixing efficiency will be reduced. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a cooling water treatment device for aluminum processing cold rolling mill to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A cooling water treatment device for an aluminum processing cold rolling mill includes a cylinder. A rotatable conveying pipe is coaxially arranged inside the cylinder. A sleeve assembly is slidably arranged on the conveying pipe. A blade is provided on the sleeve assembly. A water passage hole is opened on the conveying pipe inside the sleeve assembly. During the rotation of the blade, the cooling medium is pushed downward. Based on the principle of fluid reaction force, the blade is pushed to move upward with the sleeve assembly, so that the water passage hole on the conveying pipe is automatically opened.

[0006] The cylinder body is equipped with a telescopic sleeve assembly that can be vertically adjusted above the impeller, and a float positioning assembly is provided at the top of the telescopic sleeve assembly. A docking cylinder assembly is provided on the inner bottom wall of the cylinder body, and the docking cylinder assembly is linked with the material conveying pipe. A float pipe assembly is provided on the docking cylinder assembly, and the telescopic sleeve assembly and the float pipe assembly are driven to cooperate. When the telescopic sleeve assembly descends to dock with the docking cylinder assembly, it simultaneously drives the water outlet of the float pipe assembly to open, and the internal cavities of the telescopic sleeve assembly, docking cylinder assembly, and float pipe assembly are connected to form an upper and lower circulation channel for the medium. During the rotation of the impeller, a pumping flow field is formed, which draws the upper cooling medium downward and transports it to the float pipe. The medium is sprayed through the water outlet, which creates an upward pushing disturbance on the bottom deposited medium, constructing an upper and lower convection circulation mechanism and improving the uniformity of the medium mixing throughout the entire area.

[0007] Preferably, a motor is provided at the top of the cylinder, and the output end of the motor is coaxially and fixedly connected to the top end of the conveying pipe. When the motor starts, it drives the conveying pipe to rotate. The bottom end of the conveying pipe extends out of the cylinder and is rotatably connected to a three-way connector. The other two ports of the three-way connector are respectively equipped with a liquid feed valve and a discharge valve.

[0008] Preferably, the sleeve assembly includes a sleeve and an inner rod. The sleeve is fixedly sleeved on the conveying pipe, and the inner rod is slidably sleeved on the conveying pipe with its inner wall sealing the water passage hole. The paddle is installed on the inner rod, and the top end of the inner rod is inserted into the inside of the sleeve, with a spring installed between the inner rod and the bottom wall of the sleeve. The inner rod can slide inside the sleeve, and the water passage hole opens when the inner rod rises.

[0009] Preferably, the float positioning assembly includes a filter layer disposed within the cylinder, with a float mounted on the filter layer; the telescopic sleeve assembly includes a sleeve fitted over the outside of the conveying pipe, with a telescopic compensation pipe rotatably connected to the top of the sleeve, the top of the telescopic compensation pipe passing through the filter layer and fixedly connected to it; during use, the float floats on the water surface, and the water level is higher than the filter layer, while the top of the telescopic compensation pipe is located within the water body; during drainage, the high-speed rotation of the paddle creates a suction negative pressure, drawing out the purified water-cooling medium from the upper part, and the liquid level gradually decreases. The filter layer and the float adaptively float downwards with the liquid level. Through the telescopic compensation mechanism of the telescopic compensation pipe, the purified water-cooling medium is continuously and stably discharged, significantly improving the drainage efficiency.

[0010] Preferably, the docking cylinder assembly includes a rotating cylinder disposed on the bottom wall of the inner cylinder body, a speed reducer disposed at the bottom of the cylinder body, the power input part of the speed reducer being linked with the inner rod, a cone being disposed rotatably inside the rotating cylinder, and the output part of the speed reducer being linked with the cone; during the high-speed rotation of the inner rod driven by the motor, the speed reducer is driven to make the cone rotate at a low speed.

[0011] Preferably, an electric telescopic rod is vertically mounted on the rotating drum, and a connecting part is rotatably connected to the sleeve. The free end of the electric telescopic rod is fixedly connected to the connecting part. When the electric telescopic rod extends or retracts, it drives the sleeve to move up or down.

[0012] Preferably, a sealing plate is vertically slidably connected to the inside of the rotating cylinder via a key. The sealing plate can slide vertically, and the rotating cylinder rotates synchronously with the sealing plate. An elastic element is installed between the sealing plate and the inner bottom wall of the rotating cylinder. A positioning slider is provided on the sealing plate, and a vertical groove is opened on the cone. The outer surface of the positioning slider slides in cooperation with the inner wall of the groove. In the initial state, the sealing plate closes the top opening of the rotating cylinder. When the sleeve and the rotating cylinder are docked, the sleeve descends and inserts into the inside of the rotating cylinder. The bottom end of the sleeve abuts against the descending sealing plate, forming a channel between the inner wall of the sealing plate and the outer surface of the cone. The sleeve communicates with the inside of the rotating cylinder through the channel. When the sealing plate descends until the positioning slider moves out of the groove, the locking state between the cone and the sealing plate is released.

[0013] Preferably, the floating material tube assembly includes a pusher rod fixed on the rotating drum. The bottom of the pusher rod is in contact with the inner bottom wall of the drum. One side of the pusher rod is provided with an inclined surface. An installation groove is provided above the pusher rod. A floating material tube is rotatably connected in the installation groove. Several water outlet holes are opened on the side wall of the floating material tube. During the water outlet process, the cooling medium at the bottom is pushed upward, thereby improving the uniformity of the mixing of the upper and lower media.

[0014] Preferably, the input end of the floating material tube is inserted into the interior of the rotating drum, and a gear is coaxially fixedly connected to the end. The bottom end of the closed plate is provided with a rack, and the gear meshes with the rack. When the rack moves up and down, the driving gear drives the floating material tube to rotate in the forward or reverse direction.

[0015] The beneficial effects of this invention are as follows: 1. This invention integrates dispersion mixing and vertical convection circulation mechanisms. Through the synergistic effects of paddle pumping, pusher lifting, and floating material pipe spraying, it achieves rapid and homogeneous mixing of cooling medium and reagent throughout the entire process, solving the problems of uneven mixing and poor purification effect of cooling medium in traditional devices.

[0016] 2. This invention relies on fluid reaction force and spring reset structure to realize automatic opening and closing of water passage and intelligent dosing of agents, while effectively preventing backflow of liquid and blockage of flow channel.

[0017] 3. The top opening, water outlet, and water passage of the rotating drum of this invention are all equipped with automatic opening and closing functions, which are highly intelligent. The locking protection mechanism can prevent impurities from entering and clogging, ensuring long-term stable operation of the device and reducing maintenance costs.

[0018] 4. During the drainage operation of this invention, the paddle rotation increases the pressure inside the sleeve, and the float and telescopic compensation pipeline adaptive compensation mechanism enable the rapid discharge of the purified medium, greatly improving the drainage efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the dispersion mixing mode of the present invention.

[0021] Figure 3 This is a schematic diagram of the upper and lower loop mixing mode of the present invention.

[0022] Figure 4 This is a cross-sectional view of the sleeve of the present invention.

[0023] Figure 5 This is a schematic diagram of the rotating drum of the present invention.

[0024] Figure 6 This is a schematic diagram of the blade structure of the present invention.

[0025] Figure 7 For the present invention Figure 4 A magnified structural diagram of part A in the middle.

[0026] Figure 8 For the present invention Figure 4 A magnified structural diagram of section B in the middle.

[0027] In the attached diagram: 1. Cylinder; 2. Conveying pipe; 3. Water inlet; 4. Paddle; 5. Water outlet; 6. Motor; 7. T-joint; 8. Sleeve rod; 9. Inner rod; 10. Spring; 11. Filter layer; 12. Float; 13. Sleeve; 14. Telescopic compensation pipe; 15. Rotary drum; 16. Reducer; 17. Cone; 18. Sealing plate; 19. Elastic element; 20. Positioning slider; 21. Slide groove; 22. Electric telescopic rod; 23. Push rod; 24. Connecting part; 25. Floating pipe; 26. Liquid feed valve; 27. Gear; 28. Rack; 29. ​​Discharge valve. Detailed Implementation

[0028] The following will be for reference. Figures 1 to 8 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] A cooling water treatment device for an aluminum processing cold rolling mill, such as Figures 1-4 As shown, the device includes a cylindrical body 1, inside which a rotatable conveying pipe 2 is coaxially arranged. A sleeve assembly is slidably arranged on the conveying pipe 2, and a paddle 4 is provided on the sleeve assembly. A water passage hole 3 is opened on the conveying pipe 2 inside the sleeve assembly. A motor 6 is provided at the top of the cylindrical body 1. The motor 6 is a servo motor. The output end of the motor 6 is coaxially and fixedly connected to the top end of the conveying pipe 2. When the motor 6 is started, it drives the conveying pipe 2 to rotate. The bottom end of the conveying pipe 2 extends out of the cylindrical body 1, and a three-way connector 7 is rotatably connected to the end. The other two ports of the three-way connector 7 are respectively installed with a medicine inlet valve 26 and a discharge valve 29. The input end of the medicine inlet valve 26 is connected to an external drug delivery device, and the discharge valve 29 is connected to an external cooling medium collection device.

[0030] During the rotation of the blade 4, the cooling medium is pushed downwards. Based on the principle of fluid reaction force, the blade 4 moves upwards with the sleeve assembly, causing the water passage 3 on the feed pipe 2 to open automatically.

[0031] Inside the cylinder 1, above the blade 4, is a telescopic sleeve assembly with vertical displacement adjustment. A float positioning assembly is located at the top of the telescopic sleeve assembly. A docking cylinder assembly is located on the inner bottom wall of the cylinder 1, and it is linked to the material conveying pipe 2. A floating material pipe assembly is installed on the docking cylinder assembly, and the telescopic sleeve assembly and the floating material pipe assembly are driven together. When the telescopic sleeve assembly descends to dock with the docking cylinder assembly, it simultaneously drives the water outlet 5 of the floating material pipe assembly to open, connecting the internal cavities of the telescopic sleeve assembly, the docking cylinder assembly, and the floating material pipe assembly, thus jointly constructing an upper and lower circulation channel for the medium. In this embodiment, the cylinder 1 is also equipped with an injection valve for injecting cooling medium into the cylinder 1 (the injection valve is not shown). During the rotation of the blade 4, a pumping flow field is formed, drawing the upper cooling medium downwards and conveying it to the floating material pipe 25. The medium is sprayed through the water outlet 5, creating an upward pushing disturbance on the bottom deposited medium, constructing an upper and lower convection circulation mechanism, and improving the overall mixing uniformity of the medium.

[0032] like Figure 4 , Figure 6 and Figure 7 As shown, the sleeve assembly includes a sleeve 8 and an inner rod 9. The sleeve 8 is fixedly sleeved on the conveying pipe 2, and the inner rod 9 is slidably sleeved on the conveying pipe 2, with the inner wall sealing the water passage hole 3. The paddle 4 is installed on the inner rod 9, and the top end of the inner rod 9 is inserted into the interior of the sleeve 8, with a spring 10 installed between the inner rod 9 and the bottom wall of the sleeve 8. The inner rod 9 can slide inside the sleeve 8. In this embodiment, a ball bearing is provided between the inner rod 9 and the sleeve 8, which can reduce the friction between the inner rod 9 and the sleeve 8 and ensure the smooth sliding of the inner rod 9.

[0033] like Figure 2 As shown, the float positioning assembly includes a filter layer 11 disposed inside the cylinder 1, and a float 12 disposed on the filter layer 11; the telescopic sleeve assembly includes a sleeve 13 sleeved outside the conveying pipe 2, and a telescopic compensation pipe 14 rotatably connected to the top of the sleeve 13. The telescopic compensation pipe 14 is a telescopic joint, and the top of the telescopic compensation pipe 14 passes through the filter layer 11 and is fixedly connected to the filter layer 11. The filter layer 11 is used to prevent impurities in the cooling medium below from flowing into the upper part. During the use of this device, the float 12 floats on the water surface, and the water surface height is higher than the filter layer 11, and the top of the telescopic compensation pipe 14 is located in the water body.

[0034] During the drainage process, the high-speed rotation of the blade 4 creates a suction negative pressure, which draws out the purified water-cooling medium from the top. The liquid level gradually decreases, and the filter layer 11 and the float 12 float downwards adaptively with the liquid level. Through the expansion and contraction compensation mechanism of the expansion and contraction compensation pipe 14, the purified water-cooling medium is continuously and stably discharged, which greatly improves the drainage efficiency.

[0035] like Figure 4As shown, the docking cylinder assembly includes a rotating cylinder 15 disposed on the bottom wall of the inner cylinder 1. A reducer 16 is provided at the bottom of the cylinder 1. The power input part of the reducer 16 is linked with the inner rod 9. A cone 17 is rotatably disposed inside the rotating cylinder 15. The output part of the reducer 16 is linked with the cone 17. During the process of the motor 6 driving the inner rod 9 to rotate at high speed, the reducer 16 is driven to make the cone 17 rotate at low speed.

[0036] An electric telescopic rod 22 is vertically mounted on the rotating drum 15, and a connecting part 24 is rotatably connected to the sleeve 13. The free end of the electric telescopic rod 22 is fixedly connected to the connecting part 24. When the electric telescopic rod 22 extends or retracts, it drives the sleeve 13 to move up or down.

[0037] like Figure 4 , Figure 5 and Figure 8 As shown, a sealing plate 18 is vertically slidably connected to the rotating cylinder 15 via a key. The sealing plate 18 has a key bar, and the rotating cylinder 15 has a keyway (not shown). The sealing plate 18 can slide vertically, and the rotating cylinder 15 rotates synchronously with the sealing plate 18. An elastic element 19, which is a compression spring, is installed between the sealing plate 18 and the inner bottom wall of the rotating cylinder 15. A positioning slider 20 is provided on the sealing plate 18, and a vertical groove 21 is formed on the cone 17. The outer surface of the positioning slider 20 slides in contact with the inner wall of the groove 21. In the initial state, the sealing plate 18 seals the top of the rotating cylinder 15. When the sleeve 13 and the rotating drum 15 are connected, the sleeve 13 descends and inserts into the interior of the rotating drum 15. The bottom end of the sleeve 13 abuts against the closing plate 18 as it descends, forming a channel between the inner wall of the closing plate 18 and the outer surface of the cone 17. The sleeve 13 communicates with the interior of the rotating drum 15 through the channel. It should be noted that when the closing plate 18 descends until the positioning slider 20 moves out of the slide groove 21, the locking state between the cone 17 and the closing plate 18 is released. When the sleeve 13 rises to reset, the elastic restoring force of the elastic element 19 is used to push the closing plate 18 up and seal the top opening of the rotating drum 15 to prevent impurities from entering and causing blockage.

[0038] The floating material tube assembly includes a pusher rod 23 fixed on the rotating drum 15. The bottom of the pusher rod 23 is in contact with the inner bottom wall of the drum 1. One side of the pusher rod 23 is provided with an inclined surface. During the rotation of the pusher rod 23, the bottom sediment is disturbed and suspended upwards, which improves the mixing effect of the agent. An installation groove is provided above the pusher rod 23. A floating material tube 25 is rotatably connected in the installation groove. Several water outlet holes 5 are opened on the side wall of the floating material tube 25. During the water outlet process, the cooling medium at the bottom is pushed upwards, thereby improving the uniformity of the mixing of the upper and lower media.

[0039] The input end of the floating material tube 25 is inserted into the inside of the rotating drum 15, and the end is coaxially fixedly connected to the gear 27. The bottom end of the closed plate 18 is provided with a rack 28. The gear 27 and the rack 28 are meshed and connected. When the rack 28 moves up and down, it drives the gear 27 to drive the floating material tube 25 to rotate in the forward or reverse direction.

[0040] The working principle of this device is as follows: Figure 2 As shown, in the dispersion mixing operation mode, the sealing plate 18 blocks the top opening of the rotating cylinder 15, the sleeve 13 is located in the area above the blade 4, and the water outlet 5 is in a blocked state to prevent impurities from entering and causing blockage of the flow channel. During the operation, the motor 6 drives the conveying pipe 2 to rotate, and the blade 4 rotates at high speed, pushing the water flow upward and in a dispersion trend, so as to realize the turbulent dispersion mixing of the cooling medium and the agent in the cylinder 1.

[0041] like Figure 3 As shown, when the device switches to the mixed operation mode of upper and lower water circulation, the electric telescopic rod 22 is activated, driving the sleeve 13 to descend and engage with the rotating drum 15. The bottom end of the sleeve 13 applies a pushing force to the sealing plate 18, forcing the sealing plate 18 to move downward, so that an annular flow channel is formed between the inner wall of the sealing plate 18 and the outer cone surface of the cone 17, realizing the fluid connection between the sleeve 13 and the inside of the rotating drum 15.

[0042] The downward synchronous drive of the closed plate 18 drives the rack 28 to move, and the drive gear 27 drives the floating material tube 25 to rotate in the forward direction, thereby opening the water outlet 5. At this time, the blade 4 rotates to form a pumping flow field, which draws the upper cooling medium downward and transports it to the floating material tube 25. The medium is sprayed through the water outlet 5, which forms an upward pushing disturbance on the bottom sediment medium, constructs an upper and lower convection circulation mechanism, and improves the uniformity of the medium mixing throughout the entire area.

[0043] Meanwhile, during the high-speed rotation of the inner rod 9, the cone 17 is driven to rotate at low speed by the reducer 16, which in turn drives the positioning slider 20, the sealing plate 18, the rotating drum 15, the push rod 23 and the floating tube 25 to rotate synchronously. The rotation of the push rod 23 disturbs and suspends the bottom sediments upward; the rotation of the floating tube 25 strengthens the flow field disturbance, further improves the mixing uniformity and enhances the cooling medium treatment effect.

[0044] During the dosing operation, the feed valve 26 is open and the discharge valve 29 is closed. The flocculant and other chemicals are delivered to the feed pipe 2 through the feed valve 26. During the mixing operation, the blade 4 rotates and pushes the medium to flow. Based on the principle of fluid reaction force, the blade 4 drives the inner rod 9 to rise, which automatically opens the water hole 3 on the feed pipe 2, realizing the precise addition of chemicals with the flow. After the operation is completed, the blade 4 stops rotating, and the spring 10 pushes the inner rod 9 to move downward through the elastic reset action, realizing the automatic sealing and locking of the water hole 3, effectively preventing the backflow of chemicals in the feed pipe 2 and the blockage of the flow channel by external impurities.

[0045] In the discharge operation mode, the liquid feed valve 26 is closed and the discharge valve 29 is opened. The electric telescopic rod 22 drives the sleeve 13 and the sealing plate 18 to descend twice. The rack 28 continues to move down, driving the gear 27 to rotate the floating tube 25 in the forward direction, so that the water outlet 5 is locked and the medium spraying stops. When the sealing plate 18 descends to the point where the positioning slider 20 disengages from the slide groove 21, the cone 17 and the sealing plate 18 are automatically locked and the rotating drum 15 and the push rod 23 stop rotating. The medium in the cylinder 1 enters the static sedimentation separation mode, realizing the separation of solid precipitates and purified water-cooled medium.

[0046] During the drainage stage, the high-speed rotation of the impeller 4 creates a suction negative pressure, drawing the purified water-cooling medium from the upper part into the sleeve 13. Because the bottom of the sleeve 13 is closed, the internal hydraulic pressure continues to rise. The medium flows into the feed pipe 2 through the water outlet 5 and is finally discharged quickly under high pressure through the discharge valve 29. It should be noted that during the drainage process, the liquid level gradually decreases, and the filter layer 11 and the float 12 float and descend adaptively with the liquid level. Through the expansion and contraction compensation mechanism of the expansion and contraction compensation pipe 14, the purified water-cooling medium is continuously and stably discharged, which greatly improves the drainage efficiency.

[0047] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A cooling water treatment device for an aluminum processing cold rolling mill, comprising a cylinder (1), characterized in that, The cylinder (1) is coaxially provided with a rotatable conveying pipe (2), and a sleeve assembly is slidably provided on the conveying pipe (2). The sleeve assembly is provided with a paddle (4), and a water passage hole (3) is opened on the conveying pipe (2) inside the sleeve assembly. The cylinder (1) is provided with a telescopic sleeve assembly that can be vertically adjusted above the blade (4). The top of the telescopic sleeve assembly is provided with a float positioning assembly. The inner bottom wall of the cylinder (1) is provided with a docking cylinder assembly, which is linked with the material conveying pipe (2). A floating material pipe assembly is provided on the docking cylinder assembly, and the telescopic sleeve assembly and the floating material pipe assembly are driven together. When the telescopic sleeve assembly descends to dock with the docking cylinder assembly, the water outlet (5) of the floating material pipe assembly is opened synchronously. The internal cavities of the telescopic sleeve assembly, the docking cylinder assembly, and the floating material pipe assembly are connected to form a medium circulation channel.

2. The cooling water treatment device for an aluminum processing cold rolling mill according to claim 1, characterized in that, The top of the cylinder (1) is equipped with a motor (6), the output end of the motor (6) is coaxially fixedly connected to the top end of the conveying pipe (2), the bottom end of the conveying pipe (2) passes through the cylinder (1), and the end is rotatably connected with a three-way connector (7). The other two ports of the three-way connector (7) are respectively equipped with a liquid feed valve (26) and a discharge valve (29).

3. The cooling water treatment device for an aluminum processing cold rolling mill according to claim 1, characterized in that, The sleeve assembly includes a sleeve (8) and an inner rod (9). The sleeve (8) is fixedly sleeved on the conveying pipe (2), and the inner rod (9) is slidably sleeved on the conveying pipe (2), with the inner wall sealing the water passage hole (3). The blade (4) is installed on the inner rod (9), and the top end of the inner rod (9) is inserted into the interior of the sleeve (8), with a spring (10) installed between it and the bottom wall of the sleeve (8).

4. The cooling water treatment device for an aluminum processing cold rolling mill according to claim 1, characterized in that, The float positioning assembly includes a filter layer (11) disposed inside the cylinder (1), and a float (12) is provided on the filter layer (11).

5. The cooling water treatment device for an aluminum processing cold rolling mill according to claim 4, characterized in that, The telescopic sleeve assembly includes a sleeve (13) sleeved outside the feed pipe (2), and a telescopic compensation pipe (14) is rotatably connected to the top of the sleeve (13). The top of the telescopic compensation pipe (14) passes through the filter layer (11) and is fixedly connected to the filter layer (11).

6. The cooling water treatment device for an aluminum processing cold rolling mill according to claim 5, characterized in that, The docking cylinder assembly includes a rotating cylinder (15) that is rotatably mounted on the bottom wall of the cylinder body (1). A speed reducer (16) is provided at the bottom of the cylinder body (1). The power input part of the speed reducer (16) is linked with the inner rod (9). A cone (17) is rotatably mounted inside the rotating cylinder (15). The output part of the speed reducer (16) is linked with the cone (17).

7. A cooling water treatment device for an aluminum processing cold rolling mill according to claim 6, characterized in that, An electric telescopic rod (22) is vertically installed on the rotating drum (15), and a connecting part (24) is rotatably connected to the sleeve (13). The free end of the electric telescopic rod (22) is fixedly connected to the connecting part (24).

8. A cooling water treatment device for an aluminum processing cold rolling mill according to claim 6, characterized in that, Inside the rotating drum (15), a sealing plate (18) is vertically slidably connected by a key. An elastic element (19) is installed between the sealing plate (18) and the inner bottom wall of the rotating drum (15). A positioning slider (20) is provided on the sealing plate (18), and a vertical groove (21) is provided on the cone (17). The outer surface of the positioning slider (20) slides with the inner wall of the groove (21). When the sealing plate (18) descends to the point where the positioning slider (20) moves out of the groove (21), the locking state between the cone (17) and the sealing plate (18) is released.

9. A cooling water treatment device for an aluminum processing cold rolling mill according to claim 8, characterized in that, The floating material tube assembly includes a push rod (23) fixed on the rotating drum (15). The bottom of the push rod (23) is in contact with the inner bottom wall of the drum (1). One side of the push rod (23) is provided with an inclined surface. An installation groove is provided above the push rod (23). A floating material tube (25) is rotatably connected in the installation groove. Several water outlet holes (5) are opened on the side wall of the floating material tube (25).

10. A cooling water treatment device for an aluminum processing cold rolling mill according to claim 9, characterized in that, The input end of the floating material tube (25) is inserted into the inside of the rotating drum (15), and a gear (27) is fixedly connected to the end coaxially. The bottom end of the closed plate (18) is provided with a rack (28), and the gear (27) and the rack (28) are meshed together.

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