Water circulation efficient cooling system for steel rolling production line

Abstract

The invention discloses a steel rolling production line water circulation efficient cooling system which comprises a slag discharge channel and a filter tank, a filter mechanism is arranged in the filter tank, the slag discharge channel is communicated with the inlet end of the filter mechanism through a first communicating pipe, and a slag collecting tank is arranged below the outlet end of the filter mechanism. The bottom of the filter tank is connected with an oil-water separation tank through a second communicating pipe, an oil removal mechanism is arranged in the oil-water separation tank, an oil discharge port is formed in the upper part of the oil-water separation tank, the bottom of the oil-water separation tank is connected with a cooling tank through a third communicating pipe, and an air refrigerator is arranged above the cooling tank; an air cooling assembly communicated with the air refrigerator is arranged in the cooling pool, the upper portion of the cooling pool is connected with an adsorption tank through a fourth communicating pipe, and the adsorption tank is connected with a recovery tank through a fifth communicating pipe. The device not only can improve the impurity and oil removal effect of the turbid circulating water, but also can obviously improve the cooling speed of the turbid circulating water, and has the advantages of reasonable structural design and good environmental protection effect.

Description

Technical Field

[0001] The invention belongs to the technical field of hot rolling production of steel products, and in particular relates to a water circulation high-efficiency cooling system for a steel rolling production line. Background Art

[0002] In modern steel rolling production lines, there are two major circulating water systems for hot rolling of steel: the clean circulating water system and the turbid circulating water system. The clean circulating water system is mainly used for indirect cooling of the main motors of each rolling mill, lubrication stations, hydraulic stations, instrument cooling and heating furnaces and other equipment; the turbid circulating water system is mainly used for rolling mill rolls, water cooling, descaling water, slag flushing water, etc., which is direct cooling. Sources and characteristics of hot rolling turbid water. In the process of steel rolling production, a large amount of waste water is generated. The cooling water comes into contact with dirt on the surface of equipment and products. Not only does the water temperature rise after use, but the waste water mainly contains iron oxide scale produced on the surface of spray cooling rolling mill rolls and rolled steel, oil substances on mechanical equipment, solid impurities and other wastes and sludge. The so-called water circulation cooling system of the steel rolling production line refers to the treatment of turbid water. The traditional process of water cooling treatment of traditional steel rolling production lines is to pass the turbid water through a coarse particle separator (or primary sedimentation tank) to remove large impurity particles, and then precipitate it through an inclined plate sedimentation tank (cyclone well). A part of the treated turbid water flows into the turbid water hot water pool, is pressurized by a pump and sent to the water use point for slag flushing and recycling, and the other part of the turbid water is pressurized and sent to the chemical deoiler. The sludge is then pumped into the cooling tower for cooling, and then flows into the cold water pool for production circulation. The sludge is pumped for production circulation. The sludge is sent to the sludge concentration tank for treatment. The above cooling circulation system has the following shortcomings during use: First, there are many sedimentation and filtration tanks, which occupy a large space, but the sedimentation and filtration effect is not obvious. After the filtered turbid water enters the oil removal tank, there are still many fine suspended particles, which easily cause management blockage; second, the existing oil removal tank uses chemical oil removal, and there will be residual chemical components in the water, which will affect the effect of recycling; third, the existing cooling towers all use heat recovery pipes carrying cooling media to cool the turbid water, which has a fast cooling speed and poor cooling effect, which will affect the cooling effect of the steel rolling production line. Therefore, it is an objective need to develop a water circulation and efficient cooling system for steel rolling production line with reasonable structure and layout, good impurity and oil removal effect, high cooling efficiency, and no chemical component residue. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology such as complex system structure, poor impurity removal effect, unsatisfactory oil removal effect and slow cooling speed, the purpose of the present invention is to provide a water circulation and efficient cooling system for a steel rolling production line with reasonable structural layout, good impurity removal and oil removal effect, high cooling efficiency and no chemical residue.

[0004] The water circulation efficient cooling system for a steel rolling production line described in the present invention comprises a slag discharge ditch and a filter pool, wherein a filter mechanism is arranged in the filter pool, the slag discharge ditch is connected to the inlet end of the filter mechanism through a first connecting pipe, a slag collecting trough is arranged below the outlet end of the filter mechanism, the bottom of the filter pool is connected to an oil-water separation pool through a second connecting pipe, an oil removal mechanism is arranged in the oil-water separation pool, an oil discharge port is arranged on the upper part of the oil-water separation pool, the bottom of the oil-water separation pool is connected to a cooling pool through a third connecting pipe, an air cooler is arranged above the cooling pool, an air cooling component connected to the air cooler is arranged in the cooling pool, the upper part of the cooling pool is connected to an adsorption tank through a fourth connecting pipe, and the adsorption tank is connected to a recovery tank through a fifth connecting pipe.

[0005] Furthermore, the filtering mechanism includes a filter cartridge and a first motor, the inlet end of the filter cartridge is rotatably mounted inside one side of the filter pool, the outlet end of the filter cartridge is rotatably mounted on the other side of the filter pool and extends outside the filter pool, a plurality of filter holes are processed on the filter cartridge located in the filter pool, a support is provided on the outside of the filter pool, a drive motor is mounted on the support, an outer gear ring is mounted on the outer wall of the filter cartridge near the outlet end, a transmission shaft is mounted on the output shaft of the first motor, a drive gear meshing with the outer gear ring is mounted on the transmission shaft, a spiral material guide assembly is coaxially mounted inside the filter cartridge, and a flushing port is provided on the filter pool above the filter cartridge. The spiral material guide assembly includes a material guide shaft and a spiral blade, one end of the material guide shaft is rotatably connected to one side wall of the filter pool, one end of the material guide shaft passes through the other side wall of the filter pool and is rotatably mounted on the support, the spiral blade is mounted on the material guide shaft located inside the filter cartridge, a first gear is mounted on the transmission shaft, a second gear is mounted on the material guide shaft, and the first gear and the second gear mesh with each other.

[0006] Furthermore, a middle partition is vertically arranged in the oil-water separation tank, and the middle partition divides the oil-water separation tank into a debris removal chamber and an oil removal chamber. A filter screen is horizontally installed at the lower part of the debris removal chamber, and a transmission screw is vertically arranged in the oil removal chamber. The lower end of the transmission screw passes through the filter screen and is rotatably installed at the bottom of the debris removal chamber. A filter basket with an open top is slidably installed in the debris removal chamber above the filter screen, and the filter basket is slidably installed on the transmission screw. A second motor is installed on the top of the transmission screw. A connecting hole is arranged on the middle partition below the filter screen, and the oil removal mechanism It is arranged in the oil removal chamber, and the oil removal mechanism includes an air intake main pipe and an air pump. The air intake main pipes are symmetrically arranged on both sides of the top of the oil removal chamber, and the air pump is installed on the air intake main pipe. The other end of the air intake main pipe is sealed, and multiple air intake branch pipes are vertically installed at equal intervals at the bottom of each air intake main pipe. An aerator is connected to the lower end of the air intake branch pipe. The aerator includes an aeration cylinder and an aeration nozzle installed at the bottom of the aeration cylinder. The outlet of the air intake branch pipe is arranged on the aeration cylinder above the aeration nozzle, and a swirl blade is rotatably installed in the aeration cylinder above the outlet of the air intake branch pipe.

[0007] Furthermore, the cooling component includes an air intake box and a cooling main pipe. The air intake box is installed above the cooling pool through a support frame. The cooling main pipe is located in the cooling pool. The upper end of the cooling main pipe extends into the air intake box. A sealing plate is installed at the bottom of the cooling main pipe. The lower end of the cooling main pipe is rotatably installed at the bottom of the cooling pool. A plurality of cooling branch pipes are evenly installed on the cooling main pipe along its axial direction. The ends of the cooling branch pipes are sealed. A plurality of distribution pipes are evenly installed at the bottom of each cooling branch pipe at equal intervals. The top of the air intake box is connected to the air cooler through an air intake pipe. A driving mechanism connected to the cooling main pipe in a transmission manner is installed in the air intake box. The driving mechanism includes a third motor, a rotating shaft, a driving bevel gear and a driven bevel gear. The driving motor is installed on the support frame. One end of the rotating shaft is connected to the output shaft of the third motor, and the other end extends into the air intake box and is connected to the driving bevel gear. The driven bevel gear is installed on the cooling main pipe, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0008] Furthermore, multiple layers of activated carbon adsorption layers are sequentially arranged in the adsorption tank along the water flow direction, and the activated carbon particle size of the activated carbon adsorption layer gradually decreases along the flow direction of the water flow.

[0009] Compared with the existing technology, the advantages of the present invention are: first, the present invention optimizes the structure of the filter pool, and the filtering mechanism arranged in the filter pool can completely separate solid impurities such as solid particles and oxide scale in the turbid ring water, significantly reducing the impurity content in the turbid ring water, thus reducing the construction cost of sedimentation equipment such as sedimentation tanks and cyclone wells, reducing the number of equipment to be built, and solving the problem of large land occupation; second, the structure of the oil-water separation pool is optimized, and the oil removal mechanism arranged in the oil-water separation pool can efficiently remove oil impurities in the turbid ring water. The oil removal mechanism replaces chemical oil removal, which can avoid chemical residues in the turbid ring water, improve the environmental protection performance of water treatment, and effectively save the cost of oil removal; third, the structure of the cooling pool is optimized, and the cooling component in the cooling pool uses the cold air generated by the air cooler to directly cool the turbid ring water after impurities and oil removal. The cold air directly contacts the turbid ring water, and the cooling speed is fast and the cooling effect is good. After the turbid ring water is cooled and cooled, it enters the adsorption tank for decolorization treatment and can be stored in the recovery tank for recycling. In summary, this device can not only improve the effect of removing impurities and oil from turbid circulating water, but also significantly increase the cooling speed of turbid circulating water. It has the advantages of reasonable structural design and good environmental protection effect, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the filter tank 2 in the present invention; Figure 3 It is a schematic diagram of the structure of the oil-water separation tank 6 in the present invention; Figure 4 is a side view of the aerator of the present invention; Figure 5 It is a schematic diagram of the structure of the cooling pool 8 in the present invention; In the figure: 1-slag discharge ditch, 2-filter tank, 21-filter cylinder, 22-first motor, 23-support, 24-outer gear ring, 25-transmission shaft, 26-driving gear, 27-flushing port, 28-material guide shaft, 29-spiral blade, 210-first gear, 211-second gear, 3-first connecting pipe, 4-slag collecting tank, 5-second connecting pipe, 6-oil-water separation tank, 61-oil discharge port, 62-middle partition, 63-filter screen, 64-transmission screw, 65-filter basket, 66-second motor , 67-intake main pipe, 68-air pump, 69-intake branch pipe, 610-aeration cylinder, 611-aeration nozzle, 612-swirl blade, 7-third connecting pipe, 8-cooling tank, 81-air intake box, 82-cooling main pipe, 83-cooling branch pipe, 84-distribution pipe, 85-intake pipe, 86-third motor, 87-rotating shaft, 88-driving bevel gear, 89-driven bevel gear, 9-air cooler, 10-fourth connecting pipe, 11-adsorption tank, 12-fifth connecting pipe, 13-recovery tank. DETAILED DESCRIPTION

[0011] The present invention is further described below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0012] like Figures 1 to 5 As shown, the water circulation efficient cooling system for a steel rolling production line of the present invention comprises a slag discharge ditch 1 and a filter pool 2, wherein a filter mechanism is arranged in the filter pool 2, the slag discharge ditch 1 is connected to the inlet end of the filter mechanism through a first connecting pipe 3, a slag collecting tank 4 is arranged below the outlet end of the filter mechanism, the bottom of the filter pool 2 is connected to an oil-water separation pool 6 through a second connecting pipe 5, an oil removal mechanism is arranged in the oil-water separation pool 6, an oil discharge port 61 is arranged on the upper part of the oil-water separation pool 6, the bottom of the oil-water separation pool 6 is connected to a cooling pool 8 through a third connecting pipe 7, the cooling An air cooler 9 is arranged above the pool 8. The air cooler 9 is a structure used in the prior art, mainly including a semiconductor refrigeration plate and a stirrer. The air enters the air cooler 9 after being filtered, and the semiconductor refrigeration plate is energized to cool and cool the air. During this process, the stirrer continuously stirs the air, which can speed up the air cooling speed. An air cooling component connected to the air cooler 9 is arranged in the cooling pool 8. The upper part of the cooling pool 8 is connected to an adsorption tank 11 through a fourth connecting pipe 10, and the adsorption tank 11 is connected to a recovery tank 13 through a fifth connecting pipe 12.

[0013] The working process of this system is that the turbid circulating water collected in the slag ditch 1 first enters the filtering mechanism of the filtering tank 2 through the first connecting pipe 3. The filtering mechanism can separate the solid and liquid of the turbid circulating water to reduce the impurity content of the turbid circulating water, thereby reducing the construction cost of sedimentation equipment such as sedimentation tanks and cyclone wells, reducing the number of equipment to be built, and solving the problem of large floor space. After being filtered by the filtering mechanism, solid impurities such as solid particles and oxide scale enter the collecting tank, and the turbid circulating water enters the oil-water separation tank 6 through the second connecting pipe 5. The oil removal mechanism arranged in the oil-water separation tank 6 can efficiently remove the oil impurities in the turbid circulating water. The oil removal mechanism replaces chemical oil removal, which can avoid the turbid circulating water. The chemical residue is reduced to improve the environmental protection performance of water treatment, and the cost of oil removal can be effectively saved. The turbid circulating water after oil removal enters the cooling pool 8 through the third connecting pipe 7. At this time, the cold air generated by the air cooler 9 will continuously enter the cooling component. The cooling component evenly sends the cold air into the cooling pool 8, and the cold air can be used to directly cool the turbid circulating water after impurities and oil removal. The cold air contacts the turbid circulating water, and the cooling speed is fast and the cooling effect is good. After cooling and cooling, the turbid circulating water enters the adsorption tank 11 through the fourth connecting pipe 10 for decolorization treatment, and then passes through the fifth connecting pipe 12 to be stored in the recovery tank 13 for recycling. Furthermore, the filtering mechanism includes a filter cartridge 21 and a first motor 22. The first motor 22 is a structure used in the prior art. The inlet end of the filter cartridge 21 is rotatably mounted inside one side of the filter tank 2. The outlet end of the filter cartridge 21 is rotatably mounted on the other side of the filter tank 2 and extends outside the filter tank 2. A plurality of filter holes are machined on the filter cartridge located in the filter tank 21. In order to improve the filtering effect, the distance between the filter holes gradually decreases from the inlet end to the outlet end. A support 23 is provided on the outside of the filter tank 2. The drive motor 22 is mounted on the support 23. An outer gear ring 24 is installed on the outer wall of the filter cartridge 21 near the outlet end. The first motor A transmission shaft 25 is installed on the output shaft of the machine 22, and a driving gear 26 meshing with the outer gear ring 24 is installed on the transmission shaft 25. A spiral material guide component is coaxially installed inside the filter cartridge 21, and a flushing port 27 is provided on the filter tank 2 above the filter cartridge 21. When filtering the turbid ring water, the first motor 22 is turned on, and the first motor 22 drives the transmission shaft 25 to rotate. The rotation of the transmission shaft 25 drives the driving gear 26 to rotate. During the rotation process, the driving gear 26 drives the outer gear ring 24 to rotate, and then drives the filter cartridge 21 to rotate. At this time, the turbid ring water is continuously transported to the inlet end of the filter cartridge 21 through the first connecting pipe 3, and the turbid ring water is discharged from the filter cartridge 21. 1, solid-liquid separation can be achieved, the turbid circulating water separated from the solid and liquid falls to the bottom of the filter tank 2, and the filter residue separated from the solid and liquid enters the residue collection tank 4. In order to prevent the filter cartridge 21 from being blocked, after a period of use, clean water can be sprayed into the filter tank 2 through the flushing port 27, and the filter cartridge 21 can be cleaned with clean water to prevent blockage, which is beneficial to improving the filtration efficiency. Preferably, in order to discharge the solid impurities in the filter cartridge from the filter cartridge 21 in time, the spiral guide assembly includes a guide shaft 28 and a spiral blade 29, one end of the guide shaft 28 is rotatably connected to one side wall of the filter tank 2, and one end of the guide shaft 28 passes through the other side wall of the filter tank 2 The spiral blade 29 is installed on the guide shaft 28 located inside the filter cartridge 2. The transmission shaft 25 is provided with a first gear 210. The guide shaft 28 is provided with a second gear 211. The first gear 210 and the second gear 211 are meshed with each other. When the transmission shaft 25 rotates, the first gear 210 is driven to rotate. When the first gear 210 rotates, the second gear 211 is driven to rotate. When the second gear 211 rotates, the guide shaft 28 and the spiral blade 29 are driven to rotate. When the spiral blade 29 rotates, the solid impurities are transported from the inlet end of the filter cartridge 21 to the outlet end.

[0014] Furthermore, the oil-water separation tank can adopt a flocculation oil removal method. In order to improve the oil removal effect, a middle partition 62 is vertically arranged in the oil-water separation tank 6, and the middle partition 62 divides the oil-water separation tank 6 into a debris removal chamber and an oil removal chamber. A filter screen 63 is horizontally installed at the lower part of the debris removal chamber, and a transmission screw 64 is vertically arranged in the oil removal chamber. The lower end of the transmission screw 64 passes through the filter screen 63 and is rotatably installed at the bottom of the debris removal chamber. A filter basket 65 with an open top is slidably installed in the debris removal chamber above the filter screen 63, and the filter basket 65 is slidably installed on the transmission screw 64. A second motor 66 is installed on the top of the transmission screw 64. A connecting hole is provided on the middle partition 62 below the filter screen 63. The mechanism is arranged in the oil removal chamber. In order to avoid blockage of subsequent pipelines and further reduce the content of fine impurities in the turbid ring water, the turbid ring water after being filtered by the filter tank enters the oil-water separation tank 6 and first enters the impurity removal chamber for another impurity removal treatment. The turbid ring water enters the impurity removal chamber, and the filter basket 65 arranged in the impurity removal chamber can intercept the fine impurities in the turbid ring water. The intercepted turbid ring water enters the lower part of the impurity removal chamber through the filter net 63, and finally enters the oil removal chamber through the connecting hole. When the solid impurities intercepted in the filter basket 65 are full, the second motor 66 drives the transmission screw 64 to rotate forward, which can drive the filter basket 65 to move upward. When it moves to the pool mouth of the oil-water separation tank 6, the solid impurities in the filter basket 65 can be cleaned. After cleaning, the second motor 66 drives the transmission screw 64 to reverse. During the reversal process, the transmission screw 64 drives the filter basket 65 to move downward. After contacting the filter screen 63, the second motor 66 stops working, and the filter basket 65 continues to intercept and filter the turbid ring water. Preferably, the oil removal mechanism includes an air intake pipe 67 and an air pump 68. The air intake pipe 67 is symmetrically arranged on both sides of the top of the oil removal chamber. The air pump 68 is installed on the air intake pipe 67. The other end of the air intake pipe 67 is sealed. A plurality of air intake branches 69 are vertically installed at equal intervals at the bottom of each air intake pipe 67. The lower end of the air intake branch pipe 69 is connected to an aerator. When the turbid ring water enters the oil removal chamber, the air pump 68 delivers compressed air to the air intake pipe 67 The compressed air enters each aerator through the air inlet branch pipe 69. The aerator blows air toward both sides of the degreasing pool to aerate, so that tiny bubbles float in the turbid water and adhere to the suspended particles in the turbid water to form a floating oil layer, which floats on the surface of the turbid water. The floating oil will be discharged through the oil discharge port 61. The aerators are arranged on both sides of the degreasing chamber, which is more convenient for cleaning and less likely to affect the system, thereby improving the overall practicality. In order to improve the effect of aeration and degreasing, the aerator includes an aeration cylinder 610 and an aeration nozzle 611 installed at the bottom of the aeration cylinder 610. The outlet of the air inlet branch pipe 69 is arranged on the aeration cylinder 610 above the aeration nozzle 611. A swirl blade 612 is rotatably installed in the aeration cylinder 610 above the outlet of the air inlet branch pipe 69.A small amount of turbid circulating water can enter from the upper end of the aeration cylinder 610, mix with the compressed air, and then flow out from the aeration nozzle 611, which is conducive to improving the effect of aeration oil removal.

[0015] Furthermore, the cooling assembly includes an air intake box 81 and a cooling main pipe 82. The air intake box 81 is installed above the cooling pool 8 through a support frame. The cooling main pipe 82 is located in the cooling pool 8. The upper end of the cooling main pipe 82 extends into the air intake box 81. A sealing plate is installed at the bottom of the cooling main pipe 82. The lower end of the cooling main pipe 82 is rotatably installed at the bottom of the cooling pool 8. A plurality of cooling branch pipes 83 are evenly installed on the cooling main pipe 82 along its axial direction. The ends of the cooling branch pipes 83 are sealed. A plurality of distribution pipes 84 are evenly spaced at the bottom of each cooling branch pipe 83. The top of the air intake box 81 is connected to the air cooler 9 through the air intake pipe 85. A driving mechanism connected to the cooling main pipe 82 is installed in the air intake box 81. Preferably, the driving mechanism includes a third motor 86, a rotating shaft 87, a driving bevel gear 88 and a driven bevel gear 89. The driving motor 86 is installed on the support frame. One end of the rotating shaft 87 is connected to the output shaft of the third motor 86, and the other end is connected to the output shaft of the third motor 86. One end extends into the air intake box 81 and is connected to the driving bevel gear 88. The driven bevel gear 89 is installed on the cooling main pipe 82. The driving bevel gear 88 and the driven bevel gear 89 are meshed with each other. The cold air generated by the air cooler 9 first enters the air intake box 81 through the air intake pipe 85, and then the third motor 86 is turned on. The third motor 86 drives the driving bevel gear 88 to rotate, and the driving bevel gear 88 rotates the driven bevel gear 89 to rotate, thereby driving the cooling main pipe 82, the cooling branch pipe 83 and the distribution pipe 84. During the synchronous rotation, the cooling main pipe 82 rotates, and the cold air in the air intake box 81 enters the cooling main pipe 82. The cold air entering the cooling main pipe 82 enters the cooling branch pipes 83 in turn, and finally flows out from the lower end of the distribution pipe 84 through the distribution pipes 84. The cold air flowing out is mixed with the turbid circulating water. Under the stirring action of the cooling main pipe 82, the cooling branch pipes 83 and the distribution pipes 84, the cold air and the turbid circulating water can be evenly mixed, thereby achieving cooling treatment of the cold air.

[0016] Furthermore, multiple layers of activated carbon adsorption layers are arranged in sequence along the water flow direction in the adsorption tank 11. The activated carbon particle size of the activated carbon adsorption layer gradually decreases along the flow direction of the water flow. The activated carbon has good adsorption capacity. The activated carbon is used to decolorize and deodorize the turbid ring water after cooling, which is beneficial to improve the purification quality of the turbid ring water and improve the recycling rate of the turbid ring water.

Claims

1. A water circulation high-efficiency cooling system for a steel rolling production line, comprising a slag discharge ditch (1) and a filter tank (2), characterized in that: The filter pool (2) is provided with a filter mechanism, the slag discharge groove (1) is connected to the inlet end of the filter mechanism through a first connecting pipe (3), a slag collecting tank (4) is provided below the outlet end of the filter mechanism, the bottom of the filter pool (2) is connected to an oil-water separation pool (6) through a second connecting pipe (5), an oil removal mechanism is provided in the oil-water separation pool (6), an oil discharge port (61) is provided at the top of the oil-water separation pool (6), the bottom of the oil-water separation pool (6) is connected to a cooling pool (8) through a third connecting pipe (7), an air cooler (9) is provided above the cooling pool (8), an air cooling component connected to the air cooler (9) is provided in the cooling pool (8), the top of the cooling pool (8) is connected to an adsorption tank (11) through a fourth connecting pipe (10), and the adsorption tank (11) is connected to a recovery tank (13) through a fifth connecting pipe (12).

2. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 1 is characterized in that: The filtering mechanism comprises a filter cartridge (21) and a first motor (22); the inlet end of the filter cartridge (21) is rotatably mounted inside one side of a filter pool (2); the outlet end of the filter cartridge (21) is rotatably mounted on the other side of the filter pool (2) and extends outside the filter pool (2); a plurality of filtering holes are machined on the filter cartridge located inside the filter pool (21); a support (23) is provided outside the filter pool (2); the drive motor (22) is mounted on the support (23); an outer gear ring (24) is mounted on the outer wall of the filter cartridge (21) near the outlet end; a transmission shaft (25) is mounted on the output shaft of the first motor (22); a drive gear (26) meshing with the outer gear ring (24) is mounted on the transmission shaft (25); a spiral material guide assembly is coaxially mounted inside the filter cartridge (21); and a flushing port (27) is provided on the filter pool (2) above the filter cartridge (21).

3. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 2 is characterized in that: The spiral material guide assembly comprises a material guide shaft (28) and a spiral blade (29); one end of the material guide shaft (28) is rotatably connected to a side wall of the filter tank (2); one end of the material guide shaft (28) passes through the other side wall of the filter tank (2) and is rotatably mounted on a support (23); the spiral blade (29) is mounted on the material guide shaft (28) located inside the filter cartridge (2); a first gear (210) is mounted on the transmission shaft (25); a second gear (211) is mounted on the material guide shaft (28); the first gear (210) and the second gear (211) are meshed with each other.

4. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 1 is characterized in that: A middle partition (62) is vertically arranged in the oil-water separation tank (6), and the middle partition (62) divides the oil-water separation tank (6) into a debris removal chamber and an oil removal chamber. A filter screen (63) is horizontally installed at the lower part of the debris removal chamber. A transmission screw (64) is vertically arranged in the oil removal chamber. The lower end of the transmission screw (64) passes through the filter screen (63) and is rotatably installed at the bottom of the debris removal chamber. A filter basket (65) with an open top is slidably installed in the debris removal chamber above the filter screen (63). The filter basket (65) is slidably installed on the transmission screw (64). A second motor (66) is installed on the top of the transmission screw (64). A connecting hole is arranged on the middle partition (62) below the filter screen (63). The oil removal mechanism is arranged in the oil removal chamber.

5. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 4 is characterized in that: The oil removal mechanism comprises an air intake main pipe (67) and an air pump (68). The air intake main pipe (67) is symmetrically arranged on both sides of the top of the oil removal chamber. The air pump (68) is installed on the air intake main pipe (67). The other end of the air intake main pipe (67) is sealed. A plurality of air intake branch pipes (69) are vertically installed at equal intervals at the bottom of each air intake main pipe (67). The lower end of the air intake branch pipe (69) is connected to an aerator.

6. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 5 is characterized by: The aerator comprises an aeration cylinder (610) and an aeration nozzle (611) installed at the bottom of the aeration cylinder (610); the outlet of the air inlet branch pipe (69) is arranged on the aeration cylinder (610) above the aeration nozzle (611); and a swirl blade (612) is rotatably installed in the aeration cylinder (610) above the outlet of the air inlet branch pipe (69).

7. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 1 is characterized by: The cooling component comprises an air intake box (81) and a cooling main pipe (82). The air intake box (81) is installed above the cooling pool (8) through a support frame. The cooling main pipe (82) is located in the cooling pool (8). The upper end of the cooling main pipe (82) extends into the air intake box (81). A sealing plate is installed at the bottom of the cooling main pipe (82). The lower end of the cooling main pipe (82) is rotatably installed at the bottom of the cooling pool (8). A plurality of cooling branch pipes (83) are evenly installed on the cooling main pipe (82) along its axial direction. The ends of the cooling branch pipes (83) are sealed. A plurality of distribution pipes (84) are evenly installed at the bottom of each cooling branch pipe (83). The top of the air intake box (81) is connected to the air cooler (9) through an air intake pipe (85). A driving mechanism connected to the cooling main pipe (82) is installed in the air intake box (81).

8. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 7 is characterized in that: The driving mechanism comprises a third motor (86), a rotating shaft (87), a driving bevel gear (88) and a driven bevel gear (89); the driving motor (86) is mounted on a support frame; one end of the rotating shaft (87) is connected to the output shaft of the third motor (86); the other end extends into the air intake box (81) and is connected to the driving bevel gear (88); the driven bevel gear (89) is mounted on the cooling main pipe (82); the driving bevel gear (88) and the driven bevel gear (89) are meshed with each other.

9. The water circulation high-efficiency cooling system for a steel rolling production line according to claim 1, characterized in that: Multiple layers of activated carbon adsorption layers are arranged in sequence along the water flow direction in the adsorption tank (11), and the activated carbon particle size of the activated carbon adsorption layer gradually decreases along the flow direction of the water flow.

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