A cooling water impurity removing device

Abstract

The utility model belongs to industrial cooling water impurity removal technical field especially, it relates to a kind of cooling water impurity removal device, the device includes impurity removal box, electromagnetic impurity removal component and cleaning component, partition plate divides impurity removal box into several independent impurity removal cavities, each impurity removal cavity can independently carry out impurity removal operation;Electromagnetic impurity removal component includes protective shell, mounting plate and electromagnet, protective shell is inserted into impurity removal cavity by mounting hole, electromagnet is arranged on the two side walls of mounting plate according to rectangular array;Cleaning component includes rectangular guide rod, connecting cavity and sector-shaped spray head, realize up and down movement by second guide slot, sector-shaped spray head is arranged to form cross impact water flow with acute angle;The device can effectively remove magnetic impurities in cooling water, such as mill scale, iron filings, etc., solves the problems of traditional magnetic separation equipment, such as magnetic particle adsorption attenuation, cleaning difficulty, the need for maintenance, etc., realizes automatic cleaning without shutdown, improves impurity removal efficiency and equipment continuous operation ability.

Description

Technical Field

[0001] This utility model belongs to the field of industrial cooling water impurity removal technology, and in particular relates to a cooling water impurity removal device. Background Technology

[0002] In steel smelting production, the removal of impurities from cooling water is a crucial process to ensure the normal operation of production equipment. During high-temperature operation, equipment such as rolling mills, continuous casting machines, and heating furnaces will accumulate large amounts of magnetic impurities such as iron oxide scale and iron filings in their cooling water circulation systems. If these magnetic particles are not removed in time, they will clog pipelines, wear down equipment, reduce heat exchange efficiency, and seriously affect the continuity and safety of production.

[0003] Existing magnetic impurity removal devices mainly use permanent magnets or electromagnetic adsorption to remove iron particles from cooling water. However, in actual use, the adsorption effect of magnetic particles decreases over time. After the magnetic separator has been running for a period of time, a large amount of iron oxide scale and iron filings will be adsorbed on the surface of the magnetic poles, forming a thick layer of impurities. These adsorbed magnetic particles will significantly weaken the magnetic field strength, causing a sharp decline in the adsorption capacity of new magnetic impurities, and the impurity removal effect will gradually deteriorate, making it impossible to maintain a stable processing efficiency.

[0004] Secondly, the iron filings and iron oxide scale adsorbed in traditional magnetic separators are difficult to remove, usually requiring manual scraping after the machine is stopped. This is not only labor-intensive and incomplete, but more importantly, it requires interrupting production for maintenance, which seriously affects the continuous production of steel plants. Utility Model Content

[0005] In view of the technical problems existing in the background art, the present invention provides a cooling water impurity removal device.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: A cooling water impurity removal device includes an impurity removal box, the inner wall of which is fixedly connected with a number of partition plates at fixed intervals, the partition plates dividing the impurity removal box into a number of impurity removal chambers, and each impurity removal chamber is equipped with an electromagnetic impurity removal component. The electromagnetic cleaning component includes two mounting posts fixedly connected to the inner wall of the cleaning chamber and a protective housing disposed between the two mounting posts. The protective housing is detachably disposed in the cleaning chamber. A mounting plate is provided inside the protective housing. Several electromagnets are fixedly connected to both sides of the mounting plate. A second guide groove is provided on both sides of the mounting posts. A cleaning component is slidably connected to the inner wall of the second guide groove. The cleaning component moves up and down along the second guide groove to automatically clean the electromagnetic cleaning component in the cleaning chamber.

[0007] Optionally, the outer end of the mounting column is provided with a first guide groove, the top of the impurity removal box is provided with a mounting hole, the protective shell is inserted into the impurity removal chamber through the mounting hole, the side wall of the protective shell is provided with a protrusion, the protrusion is slidably connected to the inner wall of the first guide groove, the top of the protective shell is fixedly connected with a limiting plate, the limiting plate overlaps with the top of the impurity removal box, and the inner wall of the protrusion of the protective shell is slidably connected to the mounting plate.

[0008] Optionally, the mounting plate is a rectangular plate structure, and the electromagnets are arranged in a rectangular array on both sides of the mounting plate with a fixed spacing between adjacent electromagnets. A sealing plate is fixedly connected to the top of the mounting plate, and several terminals are fixedly connected to the top of the sealing plate. The electromagnets are connected to an external power supply through the terminals.

[0009] Optionally, the cleaning component includes two pairs of rectangular guide rods that are slidably connected to the second guide groove, and the two pairs of rectangular guide rods extend through the impurity removal box to the outside. Each pair of rectangular guide rods has a liquid guiding hole inside. The bottom end of the rectangular guide rod is fixedly connected to a connecting cavity. The liquid guiding hole communicates with the spray pipe through the connecting cavity. The outer end of the spray pipe is fixedly connected to several pairs of fan-shaped nozzles arranged at acute angles.

[0010] Optionally, a support frame is fixedly connected to the outer wall of the impurity removal box. A drive motor is fixedly connected to the top of the support frame via a mounting plate. The output shaft of the drive motor is fixedly connected to a main lead screw via a coupling. A driven lead screw is rotatably connected to the main lead screw via a synchronous pulley and a synchronous belt. Both the main lead screw and the driven lead screw have screw nuts threaded to their outer ends. The outer ends of the two screw nuts are fixedly connected to the outer ends of two pairs of rectangular guide rods, respectively. Support bearings are rotatably connected to the bottom ends of both the main lead screw and the driven lead screw. The support bearings are fixedly connected to the impurity removal box.

[0011] Optionally, the impurity removal chamber is also provided with an inlet valve and an outlet valve. The inlet valve includes a first guide rail fixedly connected to the inner wall of the partition plate, and a first gate is slidably connected to the inner wall of the first guide rail.

[0012] Optionally, the outlet valve includes a second guide rail fixedly connected to the inner wall of the partition plate, and a second gate is slidably connected to the inner wall of the second guide rail.

[0013] Optionally, the bottom of the impurity removal box is provided with a drain port corresponding to several impurity removal chambers. A sludge collection hopper is fixedly connected to the bottom of the impurity removal box. The sludge collection hopper is connected to the drain port. A drain pipe is fixedly connected to the bottom of the sludge collection hopper. A drain valve is fixedly connected to the outer end of the drain pipe.

[0014] This utility model has the following advantages and beneficial effects: This invention achieves continuous removal and time-based maintenance of magnetic impurities by setting up a modular impurity removal chamber and an electromagnetic impurity removal component. By setting up an automatic cleaning component, combined with the de-energization of the electromagnet and high-pressure nozzle rinsing, it provides a fast and automatic cleaning function by utilizing the technical characteristics of magnetic force loss and water flow impact. This method can effectively remove iron oxide scale and iron filings adsorbed on the surface of the electromagnet and maintain the stability of the impurity removal process.

[0015] Compared to traditional single-stage impurity removal methods, this approach avoids production efficiency issues caused by low equipment utilization and complex maintenance operations. It enables parallel operation of processes such as impurity removal, cleaning, maintenance, and restoration, significantly improving production efficiency. Through a multi-chamber independent operation design, when one impurity removal chamber needs cleaning, other chambers continue to operate normally, ensuring the continuity of cooling water treatment and system stability, thus meeting the technical requirements of continuous production in steel plants. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the cooling water impurity removal device of this utility model; Figure 2 This is a partial view of the cooling water impurity removal device of this utility model. Figure 1 ; Figure 3 This is a partial view of the water removal and impurity removal device of this utility model. Figure 2 ; Figure 4 This is a structural diagram of the electromagnetic impurity removal component of this utility model; Figure 5 This is a partial view of the electromagnetic impurity removal component of this utility model. Figure 1 ; Figure 6 This is a partial view of the electromagnetic impurity removal component of this utility model. Figure 2 ; Figure 7 This is a structural diagram of the cleaning component of this utility model; Figure 8 This is a front view of the cooling water impurity removal device of this utility model; Figure 9 This utility model Figure 8 A cross-sectional view along the AA direction.

[0017] Reference numerals: 1. Impurity removal box; 2. Divider plate; 3. Impurity removal chamber; 4. Mounting column; 5. First guide groove; 6. Mounting hole; 7. Protective shell; 8. Limiting plate; 9. Mounting plate; 10. Electromagnet; 11. Sealing plate; 12. Terminal block; 13. Second guide groove; 14. Rectangular guide rod; 15. Liquid guide hole; 16. Connecting cavity; 17. Spray pipe; 18. Fan-shaped nozzle; 19. Lead screw nut; 20. Lead screw; 21. Support bearing; 22. Support frame; 23. Drive motor; 24. First guide rail; 25. First gate; 26. Second guide rail; 27. Second gate; 28. Sewage outlet; 29. ​​Sewage collection hopper; 30. Sewage pipe; 31. Sewage valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Example like Figures 1-9 As shown, a cooling water impurity removal device includes an impurity removal box 1, an electromagnetic impurity removal component, and a cleaning component.

[0021] like Figure 1 and Figure 2 As shown, the impurity removal box 1 has a rectangular box structure. The inlet and outlet ends of the impurity removal box 1 are connected to cooling water pipes. The inner wall of the impurity removal box 1 is fixedly connected with four equally spaced partition plates 2. The partition plates 2 divide the impurity removal box 1 into five parallel impurity removal chambers 3. Each impurity removal chamber 3 can perform impurity removal operations independently.

[0022] like Figures 1-6 and Figure 9As shown, each impurity removal chamber 3 is equipped with an electromagnetic impurity removal component. The electromagnetic impurity removal component includes two mounting posts 4 fixedly connected to the inner wall of the impurity removal chamber 1. The outer end of each mounting post 4 has a first guide groove 5 for positioning and guiding the protective housing 7 during installation. The top of the impurity removal chamber 1 has a mounting hole 6, which is rectangular. The protective housing 7 can be slidably inserted into the mounting hole 6. A limiting plate 8 is fixedly connected to the top of the protective housing 7. The limiting plate 8 is larger than the mounting hole 6, and its bottom end overlaps with the top of the impurity removal chamber 1 to prevent the protective housing 7 from being completely inserted into the chamber. The side wall of the protective housing 7 has a protrusion that slidably connects to the inner wall of the first guide groove 5 to ensure accurate positioning of the protective housing 7. Figure 6 As shown, a mounting plate 9 is slidably connected to the inner wall of the protrusion of the protective housing 7. The mounting plate 9 is a rectangular plate structure. Several electromagnets 10 are fixedly connected to both sides of the mounting plate 9. A sealing plate 11 is fixedly connected to the top of the mounting plate 9. Several terminals 12 are fixedly connected to the top of the sealing plate 11. The terminals 12 are connected to the coils of the electromagnets 10. The electromagnets 10 can be connected to an external power source through the terminals 12.

[0023] In this invention, the cooling water that has undergone coarse sedimentation filtration enters the impurity removal chamber 1 through a pipe and is then diverted into five parallel impurity removal chambers 3. At this time, the inlet and outlet valves of the five parallel impurity removal chambers 3 are both open. When the cooling water flows through the five impurity removal chambers 3 simultaneously, the electromagnet 10 is energized to generate a strong magnetic field. Magnetic impurities in the water (such as iron oxide scale, iron filings, etc.) are quickly adsorbed onto the surface of the protective shell 7 under the action of magnetic force. Since the electromagnets 10 are arranged in a rectangular array on both sides of the mounting plate 9, a uniform magnetic field distribution is formed, ensuring that magnetic particles can be fully captured. The protective shell 7 is made of non-magnetic stainless steel, which protects the internal electromagnets 10 from corrosion by the cooling water and does not affect the penetration of magnetic lines of force, thus ensuring the magnetic separation effect.

[0024] Water enters from the inlet of the impurity removal chamber 3. After passing through the magnetic field area of ​​the electromagnet 10, the magnetic impurities are effectively removed. The purified cooling water flows out from the outlet. As the impurity removal process continues, a large amount of magnetic impurities gradually accumulate on the surface of the protective shell 7. When the thickness of the impurity layer increases to a certain extent, it will affect the magnetic field strength and the adsorption effect of new impurities. At this time, it is necessary to clean the surface of the protective shell 7.

[0025] like Figures 5-9As shown, a second guide groove 13 is provided on both sides of the mounting column 4. A cleaning component is slidably connected to the inner wall of the second guide groove 13. The cleaning component includes two pairs of rectangular guide rods 14 slidably connected to the second guide groove 13. The two pairs of rectangular guide rods 14 extend through the impurity removal box 1 to the outside. A liquid guiding hole 15 is provided inside the rectangular guide rod 14, extending through the entire length of the guide rod. A connecting cavity 16 is fixedly connected to the bottom end of the rectangular guide rod 14. The connecting cavity 16 is a cavity structure and serves as a transition connection between the liquid guiding hole 15 and the spray pipe 17. The liquid guiding hole 15 communicates with the spray pipe 17 through the connecting cavity 16. Several fan-shaped nozzles 18 arranged at acute angles are fixedly connected to the outer end of the spray pipe 17.

[0026] A support frame 22 is fixedly connected to the outer wall of the impurity removal box 1. A drive motor 23 is fixedly connected to the top of the support frame 22 via a mounting plate. The drive motor 23 is a stepper motor controlled by a stepper driver. The output shaft of the drive motor 23 is fixedly connected to a main lead screw 2001 via a coupling. A synchronous pulley is fixedly installed on the main lead screw 2001, and a synchronous pulley is also fixedly installed on the driven lead screw 2002. The synchronous pulley on the main lead screw 2001 drives the synchronous pulley on the driven lead screw 2002 via a synchronous belt, thereby achieving synchronous rotation of the main lead screw 2001 and the driven lead screw 2002. Each lead screw nut 19 is threadedly connected to the main lead screw 2001 and the driven lead screw 2002 respectively. The two lead screw nuts 19 are fixedly connected to the outer ends of two pairs of rectangular guide rods 14 respectively. The bottom ends of the main lead screw 2001 and the driven lead screw 2002 are rotatably connected to a support bearing 21, which is fixedly connected to the impurity removal box 1.

[0027] like Figure 2 As shown, each impurity removal chamber 3 is also equipped with an inlet valve and an outlet valve to control the water inlet and outlet of each impurity removal chamber 3. The inlet valve includes a first guide rail 24 fixedly connected to the inner wall of the partition plate 2, and a first gate plate 25 slidably connected to the inner wall of the first guide rail 24. The first gate plate 25 is a flat gate valve structure and can slide up and down along the first guide rail 24 to realize the opening and closing of the water inlet channel.

[0028] The outlet valve includes a second guide rail 26 fixedly connected to the inner wall of the partition plate 2, and a second gate 27 slidably connected to the inner wall of the second guide rail 26. The second gate 27 has the same structure as the first gate 25 and is used to control the opening and closing of the water outlet channel. Through the coordinated control of the inlet valve and the outlet valve, independent maintenance of a single impurity removal chamber 3 can be achieved without affecting the normal operation of other chambers.

[0029] like Figures 1-3As shown, the bottom of the impurity removal box 1 is provided with a drain port 28 corresponding to a number of impurity removal chambers 3. Each impurity removal chamber 3 has a corresponding drain port 28. The bottom end of the impurity removal box 1 is fixedly connected to a sludge collection hopper 29, which is connected to the drain port 28 and is used to collect impurities settled in each impurity removal chamber 3. The bottom end of the sludge collection hopper 29 is fixedly connected to a drain pipe 30, and the outer end of the drain pipe 30 is fixedly connected to a drain valve 31.

[0030] like Figures 1-9 As shown, during regular cleaning, the inlet and outlet valves of one of the cleaning chambers 3 that need cleaning are first closed manually or using a cylinder, while the inlet and outlet valves of the remaining cleaning chambers 3 remain open to continue cleaning. When closing, the operator pushes the handle at the top of the first gate 25 or activates the cylinder drive device to make the first gate 25 slide down along the first guide rail 24, completely sealing the water inlet channel of the cleaning chamber 3 and cutting off the flow of cooling water from the pre-treatment unit. Simultaneously, the operator operates the handle at the top of the second gate 27 to make the second gate 27 slide down along the second guide rail 26, completely sealing the water outlet channel of the cleaning chamber 3 and preventing the cooling water after cleaning from flowing back.

[0031] After the inlet valve and outlet valve are closed, the impurity removal chamber 3 forms a relatively independent sealed space. At this time, the drain valve 31 is opened, and the water in the impurity removal chamber 3, along with the non-magnetic impurities that have settled at the bottom, are drained using gravity and the pressure difference at the bottom. The water and impurities flow into the sludge collection hopper 29 through the corresponding drain port 28, and then are discharged out of the system through the drain pipe 30. After the chamber is emptied, the power supply to the electromagnet 10 in the chamber is disconnected, which significantly weakens the magnetic field of the chamber. The magnetic impurities adsorbed on the surface of the protective housing 7 begin to loosen, preparing for the subsequent cleaning work of the cleaning components.

[0032] Next, the drive motor 23 is started, which drives the main lead screw 2001 to rotate. The main lead screw 2001 is driven to rotate synchronously from the lead screw 2002 through the synchronous pulley and synchronous belt. The two lead screw nuts 19 simultaneously drive the two pairs of rectangular guide rods 14 to move downward along the second guide groove 13, and at the same time, high-pressure cleaning medium is introduced into the guide liquid hole 15 until it reaches the fan-shaped nozzle 18. Through the acute angle arrangement of the fan-shaped nozzle 18, the water flow that forms a cross impact on both sides of the impurity removal chamber 3 can thoroughly rinse the surface of the protective shell 7 and the partition plate 2, and completely wash away the loose magnetic impurities.

[0033] After cleaning, the drive motor 23 rotates in the opposite direction, causing the main lead screw 2001 and the driven lead screw 2002 to rotate synchronously in the opposite direction, causing the two pairs of rectangular guide rods 14 to rise back to their initial positions and move away from the surface of the protective housing 7. Then, the electromagnet 10 is energized again to restore the magnetic field strength. Finally, the inlet valve and outlet valve of the impurity removal chamber 3 are opened to resume normal impurity removal operation. During this period, the other four impurity removal chambers 3 continue to work normally, ensuring the continuity of cooling water treatment. This solves the problem of difficult manual cleaning of traditional magnetic separation equipment and improves the operating efficiency and maintenance convenience of the equipment.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for removing impurities from cooling water, characterized in that, The device includes a cleaning box (1), and the inner wall of the cleaning box (1) is fixedly connected with several partition plates (2) with a fixed spacing. The partition plates (2) divide the cleaning box (1) into several cleaning cavities (3), and each cleaning cavity (3) is provided with an electromagnetic cleaning component. The electromagnetic cleaning component includes two mounting posts (4) fixedly connected to the inner wall of the cleaning box (1) and a protective shell (7) disposed between the two mounting posts (4). The protective shell (7) is detachably disposed in the cleaning cavity (3). The protective shell (7) is provided with a mounting plate (9). Several electromagnets (10) are fixedly connected to both sides of the mounting plate (9). A second guide groove (13) is provided on both sides of the mounting posts (4). A cleaning component is slidably connected to the inner wall of the second guide groove (13). The cleaning component moves up and down along the second guide groove (13) to automatically clean the electromagnetic cleaning component in the cleaning cavity (3).

2. The cooling water impurity removal device according to claim 1, characterized in that: The outer end of the mounting column (4) is provided with a first guide groove (5), the top end of the impurity removal box (1) is provided with a mounting hole (6), the protective shell (7) is inserted into the impurity removal cavity (3) through the mounting hole (6), the side wall of the protective shell (7) is provided with a protrusion, the protrusion is slidably connected to the inner wall of the first guide groove (5), the top end of the protective shell (7) is fixedly connected with a limiting plate (8), the limiting plate (8) overlaps with the top end of the impurity removal box (1), and the inner wall of the protrusion of the protective shell (7) is slidably connected to the mounting plate (9).

3. The cooling water impurity removal device according to claim 1, characterized in that: The mounting plate (9) is a rectangular plate structure. The electromagnets (10) are arranged in a rectangular array on both sides of the mounting plate (9). There is a fixed spacing between adjacent electromagnets (10). A sealing plate (11) is fixedly connected to the top of the mounting plate (9). Several terminals (12) are fixedly connected to the top of the sealing plate (11). The electromagnets (10) are connected to an external power source through the terminals (12).

4. The cooling water impurity removal device according to claim 1, characterized in that: The cleaning assembly includes two pairs of rectangular guide rods (14) slidably connected to the second guide groove (13), and the two pairs of rectangular guide rods (14) extend through the impurity removal box (1) to the outside. Each pair of rectangular guide rods (14) has a liquid guiding hole (15) inside. The bottom end of the rectangular guide rod (14) is fixedly connected to a connecting cavity (16). The liquid guiding hole (15) is connected to the spray pipe (17) through the connecting cavity (16). The outer end of the spray pipe (17) is fixedly connected to several pairs of fan-shaped nozzles (18) arranged at acute angles.

5. A cooling water impurity removal device according to claim 4, characterized in that: The outer wall of the impurity removal box (1) is fixedly connected to a support frame (22). The top of the support frame (22) is fixedly connected to a drive motor (23) via a mounting plate. The output shaft of the drive motor (23) is fixedly connected to a main lead screw (2001) via a coupling. The main lead screw (2001) is rotatably connected to a driven lead screw (2002) via a synchronous pulley and a synchronous belt. The outer ends of the main lead screw (2001) and the driven lead screw (2002) are threaded with screw nuts (19). The outer ends of the two screw nuts (19) are fixedly connected to the outer ends of the two pairs of rectangular guide rods (14). The bottom ends of the main lead screw (2001) and the driven lead screw (2002) are rotatably connected to a support bearing (21). The support bearing (21) is fixedly connected to the impurity removal box (1).

6. A cooling water impurity removal device according to claim 3, characterized in that: The impurity removal chamber (3) is also provided with an inlet valve and an outlet valve. The inlet valve includes a first guide rail (24) fixedly connected to the inner wall of the partition plate (2). The inner wall of the first guide rail (24) is slidably connected to a first gate plate (25).

7. A cooling water impurity removal device according to claim 6, characterized in that: The outlet valve includes a second guide rail (26) fixedly connected to the inner wall of the partition plate (2), and a second gate plate (27) is slidably connected to the inner wall of the second guide rail (26).

8. A cooling water impurity removal device according to claim 3, characterized in that: The bottom of the impurity removal box (1) is provided with a drain port (28) corresponding to a plurality of impurity removal chambers (3). The bottom end of the impurity removal box (1) is fixedly connected to a sludge collection hopper (29). The sludge collection hopper (29) is connected to the drain port (28). The bottom end of the sludge collection hopper (29) is fixedly connected to a drain pipe (30). The outer end of the drain pipe (30) is fixedly connected to a drain valve (31).

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