Ultrathin rolling mill cooling device

Abstract

The utility model discloses an ultrathin rolling mill cooling device which comprises a rolling mill frame, a second roller is movably connected in the rolling mill frame, one end, far away from the second roller, in the rolling mill frame is movably connected with a first roller, and a primary cooling mechanism is arranged at the bottom of the rolling mill frame. The primary cooling mechanism comprises a cooling box welded to the bottom end of the rolling mill frame, a condenser is fixedly arranged in the cooling box, a cooling pump is fixedly arranged at one end of the cooling box, the output end of the cooling pump is fixedly connected with a three-way pipe through a water inlet pipe, and a water outlet pipe is welded to the other end, away from the rolling mill frame, of the cooling box. The condenser cools water in the cooling box, the water flows into the three-way pipe under the action of the cooling pump, and cooling water in the three-way pipe penetrates through the first roller and the second roller and then flows into the water outlet pipe through the other three-way pipe, so that the cooling water is recycled in the device, the roller cooling effect is effectively improved, and meanwhile waste of water resources is reduced.

Description

Technical Field

[0001] The utility model relates to a rolling mill, in particular to an ultra-thin rolling mill cooling device. Background Art

[0002] A rolling mill is a device that realizes the metal rolling process. It generally refers to the equipment that completes the entire process of rolling production, including main equipment, auxiliary equipment, lifting and transportation equipment, and ancillary equipment. It usually refers to the mechanical process of deformation of rolled pieces between rollers. With the continuous development of metallurgical production technology, the variety and specifications of strip steel have gradually expanded, and micro-alloyed steel and carbon-manganese steel have replaced ordinary steel as the main products. During the production process of the rolling line, some high-strength steels containing alloy elements have repeatedly deformed due to uneven cooling of steel products, which has a great impact on the plate shape, mechanical properties, temperature and uniformity of phase change of steel.

[0003] At present, during the rolling process, the speed of the roll is relatively high. If the working roll is not sufficiently cooled, the roll ring is prone to "roll explosion". However, water spraying is generally used to cool the roll. Water spraying cooling only cools the surface of the roll, and heat still exists inside the roll. At the same time, the efficiency of water spraying cooling is too low, which greatly affects the efficiency and effect of roll cooling, and further affects the working efficiency of the rolling mill. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes an ultra-thin rolling mill cooling device to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A cooling device for an ultra-thin rolling mill, comprising a rolling mill frame, wherein a second rolling roller is movably connected in the rolling mill frame, both ends of the second rolling roller extend outside the rolling mill frame and are connected to a second rotating joint, an end of the rolling mill frame away from the second rolling roller is movably connected to a first rolling roller, both ends of the first rolling roller extend outside the rolling mill frame and are connected to a first rotating joint, the first rotating joint is fixedly connected to a tee, a primary cooling mechanism is provided on the bottom of the rolling mill frame, the primary cooling mechanism comprises a cooling box welded to the bottom end of the rolling mill frame, a condenser is fixedly provided in the cooling box, a cooling pump is fixedly provided on one end of the cooling box away from the rolling mill frame, the cooling pump is connected to the cooling box through a connecting pipe, the output end of the cooling pump is fixedly connected to the tee through a water inlet pipe, a water outlet pipe is welded on the other end of the cooling box away from the rolling mill frame, the top end of the water outlet pipe is fixedly connected to another tee, and a secondary cooling mechanism is provided on the top of the rolling mill frame.

[0007] Furthermore, in order to improve the efficiency of roller cooling, the secondary cooling mechanism includes a top plate fixedly connected to the top of the rolling mill frame, a water tank is welded to the top plate, a water pump is fixedly connected to the end of the top plate away from the water tank, the water pump is connected to the water tank through a connecting water pipe, a spray pipe is fixedly provided on the output end of the water pump, one end of the spray pipe extends into the rolling mill frame and is fixedly connected to a cross pipe, the cross pipe is welded inside the rolling mill frame, and a nozzle is provided on the outer surface of the cross pipe.

[0008] Furthermore, in order to cool the first rolling roller, a first cooling pipe is provided inside the first rolling roller. The first cooling pipe is distributed in a spiral shape inside the first rolling roller, and both ends of the first cooling pipe are respectively connected to the first rotary joint.

[0009] Furthermore, in order to cool the second rolling roller, a second cooling pipe is provided inside the second rolling roller. The second cooling pipe is distributed in a spiral shape inside the second rolling roller, and both ends of the second cooling pipe are respectively connected to the second rotary joint.

[0010] Furthermore, in order to allow cooling water to flow to the second rolling roller, the second rotary joint is connected to the three-way pipe through a connecting pipe.

[0011] Furthermore, in order to facilitate personnel control, a controller is provided on one side of the outer surface of the cooling box, and the controller is electrically connected to the condenser, the cooling pump and the water pump.

[0012] Furthermore, in order to stabilize the device on the ground, support legs are welded around the bottom end of the cooling box.

[0013] The beneficial effects of the utility model are:

[0014] 1. The controller makes the condenser work. The condenser cools the water in the cooling box and flows into the three-way pipe under the action of the cooling pump. A part of the cooling water in the three-way pipe flows into the first cooling pipe through the first rotary joint. The cooling water in the first cooling pipe is combined with the heat in the first roller, so as to cool the first roller. The other part of the cooling water flows into the second rotary joint through the connecting pipe, and then flows into the second cooling pipe through the second rotary joint. The cooling water in the second cooling pipe is combined with the heat in the second roller, so as to cool the second roller. The combined cooling water in the second cooling pipe flows to another second rotary joint, and then flows into another three-way pipe through another connecting pipe. The combined cooling water in the first cooling pipe flows into another three-way pipe through another first rotary joint. The combined cooling water in the other three-way pipe flows into the cooling box through the outlet pipe, so that the cooling water is circulated in the device, effectively improving the cooling effect of the roller and reducing the waste of water resources.

[0015] 2. The water pump is operated through the controller. The water pump flows the water in the water tank into the spray pipe, and then flows from the spray pipe to the cross pipe, and finally sprays the water onto the first roller and the second roller through the nozzle, so as to cool the rollers and cooperate with the primary cooling mechanism to improve the cooling efficiency of the rollers and further improve the working efficiency of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of an ultra-thin rolling mill cooling device according to an embodiment of the utility model;

[0018] Figure 2 It is a rear view structural schematic diagram of an ultra-thin rolling mill cooling device according to an embodiment of the utility model;

[0019] Figure 3 is a cross-sectional view of an ultra-thin rolling mill cooling device according to an embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional view of a rolling mill roll in an ultra-thin rolling mill cooling device according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Rolling mill frame; 2. First rolling roller; 3. First cooling pipe; 4. First rotating joint; 5. Tee pipe; 6. Second rolling roller; 7. Second cooling pipe; 8. Second rotating joint; 9. Connecting pipe; 10. Cooling box; 11. Condenser; 12. Cooling pump; 13. Connecting pipe; 14. Water inlet pipe; 15. Water outlet pipe; 16. Top plate; 17. Water tank; 18. Connecting water pipe; 19. Water pump; 20. Spraying pipe; 21. Horizontal pipe; 22. Nozzle; 23. Controller; 24. Support leg. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] According to an embodiment of the utility model, an ultra-thin rolling mill cooling device is provided.

[0025] Embodiment 1;

[0026] like Figure 1-Figure 4As shown, the ultra-thin rolling mill cooling device according to the embodiment of the utility model comprises a rolling mill frame 1 for carrying the rolling mill, a second rolling roller 6 is installed in the rolling mill frame 1 through a bearing, both ends of the second rolling roller 6 extend to the outside of the rolling mill frame 1, and are connected to a second rotary joint 8 and another second rotary joint 8, a second cooling pipe 7 is arranged inside the second rolling roller 6, the second cooling pipe 7 is spirally distributed inside the second rolling roller 6, both ends of the second cooling pipe 7 are respectively connected to the second rotary joint 8 and another second rotary joint 8, a first rolling roller 2 is installed at one end of the rolling mill frame 1 away from the second rolling roller 6 through a bearing, both ends of the first rolling roller 2 extend to the outside of the rolling mill frame 1, and are connected to a first rotary joint 4 and another first rotary joint 4, a first rolling roller 2 is arranged inside The first cooling tube 3 is spirally distributed in the first rolling roller 2, and the two ends of the first cooling tube 3 are respectively connected to the first rotating joint 4 and the other first rotating joint 4, the first rotating joint 4 is fixedly connected to the three-way pipe 5, the other first rotating joint 4 is fixedly connected to the other three-way pipe 5, the second rotating joint 8 is connected to the three-way pipe 5 through a connecting pipe 9, and the other second rotating joint 8 is connected to the other three-way pipe 5 through another connecting pipe 9. A primary cooling mechanism is provided on the bottom of the rolling mill frame 1, and the primary cooling mechanism includes a cooling box 10 welded to the bottom end of the rolling mill frame 1, and the bottom end of the cooling box 10 is welded with support legs 24 around it. A controller 23 is provided on one side of the outer surface of the cooling box 10, and the controller 23 is electrically connected to the power supply. The cooling box 10 A condenser 11 is fixedly installed inside the cooling box 10, which is electrically connected to the controller 23 and provided with the required electric energy by the power supply. A cooling pump 12 is fixedly installed on the end of the cooling box 10 away from the rolling mill frame 1, which is electrically connected to the controller 23 and provided with the required electric energy by the power supply. The cooling pump 12 is connected to the cooling box 10 through a connecting pipe 13, and the output end of the cooling pump 12 is fixedly connected to the three-way pipe 5 through a water inlet pipe 14. A water outlet pipe 15 is welded to the other end of the cooling box 10 away from the rolling mill frame 1, and the top of the water outlet pipe 15 is fixedly connected to another three-way pipe 5. A water injection pipe is welded to the end of the cooling box 10 away from the water outlet pipe 15. The controller 23 makes the condenser 11 work, and the condenser 11 cools the water in the cooling box 10 and cools the water in the cooling box 10. Under the action of the pump 12, the cooling water flows into the three-way pipe 5. A part of the cooling water in the three-way pipe 5 flows into the first cooling pipe 3 through the first rotating joint 4. The cooling water in the first cooling pipe 3 combines with the heat in the first rolling roller 2, thereby cooling the first rolling roller 2. Another part of the cooling water flows into the second rotating joint 8 through the connecting pipe 9, and then flows into the second cooling pipe 7 from the second rotating joint 8. The cooling water in the second cooling pipe 7 combines with the heat in the second rolling roller 6, thereby cooling the second rolling roller 6. The combined cooling water in the second cooling pipe 7 flows to another second rotating joint 8, and then flows into another three-way pipe 5 from another connecting pipe 9. The combined cooling water in the first cooling pipe 3 flows into another three-way pipe 5 through another first rotating joint 4.The cooling water after the junction in the other three-way pipe 5 flows into the cooling box 10 through the outlet pipe 15, so that the cooling water is circulated in the device, effectively improving the cooling effect of the roll and reducing the waste of water resources.

[0027] Embodiment 2:

[0028] See also Figure 1-Figure 3 In order to improve the efficiency of roller cooling, a secondary cooling mechanism is provided on the top of the rolling mill frame 1. The secondary cooling mechanism includes a top plate 16 welded on the top of the rolling mill frame 1, a water tank 17 is welded on the top plate 16, a water injection pipe is welded on the water tank 17, a water pump 19 is installed on the end of the top plate 16 away from the water tank 17, the water pump 19 is electrically connected to the controller 23, and the required power is provided by the power supply, the water pump 19 is connected to the water tank 17 through the connecting water pipe 18, and a spray pipe 20 is fixedly connected to the output end of the water pump 19, one end of the spray pipe 20 extends into the rolling mill frame 1 and is fixedly connected to a horizontal pipe 21 with a cavity provided inside, the horizontal pipe 21 is welded in the rolling mill frame 1, and nozzles 22 are equidistantly provided on one side of the outer surface of the horizontal pipe 21, and the nozzles 22 are perpendicular to the horizontal pipe 21. The setting of the nozzle 22 allows water to be sprayed onto the second roller 6, so as to cool the second roller 6. Nozzles 22 are equidistantly provided on the bottom of the outer surface of the transverse tube 21, and the nozzles 22 are obliquely distributed on the transverse tube 21. The setting of the nozzle 22 allows water to be sprayed onto the first roller 2, so as to cool the first roller 2. The setting of the cavity allows water to flow through the transverse tube 21 to the nozzle 22, and the controller 23 is used to operate the water pump 19. The water pump 19 drives the water in the water tank 17 to the spray pipe 20, and then flows from the spray pipe 20 to the transverse tube 21, and finally sprays the water onto the first roller 2 and the second roller 6 through the nozzle 22, so as to cool the rollers, and cooperates with the primary cooling mechanism to improve the efficiency of roller cooling and further improve the efficiency of the rolling mill.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0030] In actual application, first, the controller 23 makes the condenser 11 and the cooling pump 12 work at the same time, the condenser 11 cools the water in the cooling box 10, and under the action of the cooling pump 12, it flows into the three-way pipe 5, a part of the cooling water in the three-way pipe 5 flows into the first cooling pipe 3 through the first rotating joint 4, the cooling water in the first cooling pipe 3 is combined with the heat in the first rolling roller 2, so as to cool the first rolling roller 2, and the other part of the cooling water flows into the second rotating joint 8 through the connecting pipe 9, and then flows into the second cooling pipe 7 through the second rotating joint 8, the cooling water in the second cooling pipe 7 is combined with the heat in the second rolling roller 6, so as to cool the second rolling roller 6, and the combined cooling water in the second cooling pipe 7 flows to Another second rotary joint 8, and then flows into another three-way pipe 5 through another connecting pipe 9. The cooling water combined in the first cooling pipe 3 flows into another three-way pipe 5 through another first rotary joint 4. The cooling water combined in the other three-way pipe 5 flows into the cooling box 10 through the outlet pipe 15, so that the cooling water is circulated in the device. At the same time, the water pump 19 is operated through the controller 23. The water pump 19 makes the water in the water tank 17 flow into the spray pipe 20, and then flows from the spray pipe 20 to the cross pipe 21, and finally sprays onto the first roller 2 and the second roller 6 through the nozzle 22, so as to cool the rollers, and cooperate with the primary cooling mechanism to improve the cooling efficiency of the rollers, and further improve the working efficiency of the rolling mill.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-thin rolling mill cooling device, comprising a rolling mill stand (1), characterized in that: A second rolling roller (6) is movably connected inside the rolling mill frame (1), both ends of the second rolling roller (6) extend outside the rolling mill frame (1) and are connected to a second rotating joint (8), a first rolling roller (2) is movably connected to one end of the rolling mill frame (1) away from the second rolling roller (6), both ends of the first rolling roller (2) extend outside the rolling mill frame (1) and are connected to a first rotating joint (4), the first rotating joint (4) is fixedly connected to a three-way pipe (5), a primary cooling mechanism is provided on the bottom of the rolling mill frame (1), and the primary cooling mechanism comprises a cooling box welded to the bottom end of the rolling mill frame (1) (10), a condenser (11) is fixedly provided in the cooling box (10), a cooling pump (12) is fixedly provided on one end of the cooling box (10) away from the rolling mill frame (1), the cooling pump (12) is connected to the cooling box (10) via a connecting pipe (13), the output end of the cooling pump (12) is fixedly connected to the three-way pipe (5) via a water inlet pipe (14), a water outlet pipe (15) is welded to the other end of the cooling box (10) away from the rolling mill frame (1), the top end of the water outlet pipe (15) is fixedly connected to another three-way pipe (5), and a secondary cooling mechanism is provided on the top of the rolling mill frame (1).

2. The ultra-thin rolling mill cooling device according to claim 1, characterized in that: The secondary cooling mechanism comprises a top plate (16) fixedly connected to the top of the rolling mill frame (1), a water tank (17) welded to the top plate (16), a water pump (19) fixedly connected to one end of the top plate (16) away from the water tank (17), the water pump (19) being connected to the water tank (17) via a connecting water pipe (18), a spray pipe (20) fixedly provided on the output end of the water pump (19), one end of the spray pipe (20) extending into the rolling mill frame (1) and fixedly connected to a transverse pipe (21), the transverse pipe (21) being welded inside the rolling mill frame (1), and a nozzle (22) being provided on the outer surface of the transverse pipe (21).

3. The ultra-thin rolling mill cooling device according to claim 1, characterized in that: A first cooling pipe (3) is provided inside the first rolling roller (2). The first cooling pipe (3) is distributed in a spiral shape inside the first rolling roller (2). Both ends of the first cooling pipe (3) are respectively connected to the first rotary joint (4).

4. The ultra-thin rolling mill cooling device according to claim 1, characterized in that: A second cooling pipe (7) is provided inside the second rolling roller (6). The second cooling pipe (7) is distributed in a spiral shape inside the second rolling roller (6). Both ends of the second cooling pipe (7) are respectively connected to the second rotary joint (8).

5. The ultra-thin rolling mill cooling device according to claim 1, characterized in that: The second rotary joint (8) is connected to the three-way pipe (5) via a connecting pipe (9).

6. The ultra-thin rolling mill cooling device according to claim 2, characterized in that: A controller (23) is provided on one side of the outer surface of the cooling box (10), and the controller (23) is electrically connected to the condenser (11), the cooling pump (12) and the water pump (19).

7. The ultra-thin rolling mill cooling device according to claim 6, characterized in that: Support legs (24) are welded around the bottom end of the cooling box (10).

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