External water vapor cooling device for working roll of straightening machine
By connecting the compressed air source into the cooling pipeline of the straightener working roller, the pneumatic butterfly valve is used to control the evacuation of residual cooling water and cooling, the problem of cooling water leakage and excessive temperature is solved, the quality of the steel plate and the life of the working roller are improved, and the stability of the production line is ensured.
Patent Information
- Application Number
- CN202422476615.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-14
AI Technical Summary
After the cooling water on the working roller surface of the straightener is closed, the cooling water remaining in the pipe leaks into an iron oxide sheet on the steel plate, affecting the surface quality of the steel plate. At the same time, the temperature of the working roller is too high, causing expansion, causing problems such as small roller seams and steel plate curling.
The compressed air source is connected to the cooling water cooling pipeline, and controlled by the pneumatic butterfly valve, the residual cooling water is quickly emptied with compressed air and the working roller temperature is reduced to avoid the problems of cooling water leakage and excessive temperature.
Effectively prevent the formation of iron oxide on the surface of the steel plate, reduce imprinting, avoid expansion of working rollers, improve the quality of the steel plate and the life of the working roller of the straightener, and ensure stable operation of the production line.
Smart Images
Figure CN223185358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cooling equipment, in particular to an external water vapor cooling device for a working roller of a straightening machine. Background Art
[0002] During the production of medium and thick plates, a straightener is required to perform online hot straightening of the steel plates. Due to the high operating temperature of the straightener, external cooling water is required to cool the surface of the work rolls during the working interval to reduce the surface temperature of the work rolls. However, when straightening the steel plates, the cooling water needs to be turned off to prevent the cooling water from affecting the temperature uniformity of the steel plates. However, this will cause the following two problems: On the one hand, after the cooling water is turned off, the residual cooling water in the pipe will continue to drip onto the steel plates, forming iron oxide scale on the steel plate surface. The iron oxide scale then sticks to the surface of the work rolls, causing indentations on the steel plate surface, affecting the surface quality of the steel plates. Once the steel plate indentations appear, the machine needs to be stopped for inspection and the straightener work rolls need to be repaired, which not only increases the workload and risk of the operators, but also affects the output and product quality. On the other hand, after the cooling water is turned off, the work rolls will overheat during the straightening process due to the lack of other cooling measures, causing the work rolls to expand, resulting in a smaller roll gap, which can easily cause the steel plates to warp and indentations on the work roll surface. Utility Model Content
[0003] The purpose of the utility model is to provide an external water vapor cooling device for the working roller of a straightening machine, which can solve the problem that after the cooling water used to cool the surface of the working roller of the straightening machine is turned off, the remaining cooling water in the pipeline will continue to drip onto the steel plate, and the working roller will expand due to excessive temperature when straightening the steel plate.
[0004] In order to solve the above problems, the technical solution adopted by the utility model is: this external water vapor cooling device for the working rolls of the straightening machine includes a cooling water drain pipe arranged between the working rolls of the straightening machine, the inlet of the cooling water drain pipe is connected to the cooling water distribution pipe, and the cooling water distribution pipe is provided with a water inlet and an air inlet, and the water inlet and the air inlet are respectively connected to the water source and the air source.
[0005] In the above technical solution, a more specific technical solution may also be: the water inlet is provided at one end of the cooling water distribution pipe, and a first on-off valve is provided on the pipe between the water inlet and the water source.
[0006] Furthermore, there are two air inlets, one of which is located at the other end of the cooling water distribution pipe, and the other is located on the pipe body near one end of the water inlet. A second on-off valve is provided on the pipeline between the air inlet and the air source.
[0007] Furthermore, the first on-off valve and the second on-off valve are both pneumatic butterfly valves.
[0008] Furthermore, the gas source is compressed air.
[0009] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0010] This utility model integrates a compressed air source into the cooling water cooling pipeline. This not only allows the cooling water remaining in the pipeline to be quickly drained before the working rollers straighten the steel plates, preventing the cooling water from dripping onto the steel plates, preventing the formation of iron oxide scale on the steel plate surfaces, and reducing surface imprinting on the steel plates, thereby ensuring the surface quality of the steel plates, but also prevents the working rollers from overheating during straightening, thus avoiding the problem of a narrow roll gap caused by the expansion of the working rollers. This significantly reduces the warping of the steel plates and the appearance of imprinting on the working roller surfaces. This utility model not only improves the quality of the steel plates, but also extends the service life of the straightening machine working rollers, reduces downtime due to failures, and effectively ensures the stable operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION
[0012] The present invention will be further described below in conjunction with the accompanying drawings:
[0013] like Figure 1 The external water vapor cooling device of the straightening machine working roll shown includes a cooling water drain pipe 1 arranged between the straightening machine working rolls, the inlet of the cooling water drain pipe 1 is connected to the cooling water distribution pipe 2, and the outlet of the cooling water drain pipe 1 faces the straightening machine working roll. The cooling water distribution pipe 2 is provided with a water inlet and an air inlet, which are respectively connected to a water source 3 and an air source 4.
[0014] The water inlet is provided at one end of the cooling water distribution pipe 2 , and a first on-off valve 5 is provided on the pipe between the water inlet and the water source 3 .
[0015] There are two air inlets, one of which is located at the other end of the cooling water distribution pipe 2, and the other is located on the pipe body near one end of the water inlet. A second on-off valve 6 is provided on the pipeline between the air inlet and the air source 4.
[0016] The first on-off valve 5 and the second on-off valve 6 are both pneumatic butterfly valves, and the air source 4 is compressed air.
[0017] When the utility model is used, when the surface of the working roller of the straightening machine needs to be cooled during the working interval, the second on-off valve 6 is closed, and the first on-off valve 5 is opened. The cooling water source 3 enters the cooling water distribution pipe 2 from the pipeline, and then is sprayed from the outlet of the cooling water discharge pipe 1 to the surface of the working roller of the straightening machine; and when the working roller needs to work, the first on-off valve 5 is closed, and the second on-off valve 6 is opened. The compressed air source 4 enters the cooling water distribution pipe 2 from the pipeline, and then is sprayed from the outlet of the cooling water discharge pipe 1 to the surface of the working roller of the straightening machine. On the one hand, the compressed air can be used to quickly blow away the remaining cooling water in the cooling water discharge pipe 1 and the cooling water distribution pipe 2, and on the other hand, the compressed air can be used to reduce the temperature of the surface of the working roller.
[0018] This utility model integrates a compressed air source into the cooling water cooling pipeline. This not only allows the cooling water remaining in the pipeline to be quickly drained before the working rollers straighten the steel plates, preventing the cooling water from dripping onto the steel plates, preventing the formation of iron oxide scale on the steel plate surfaces, and reducing surface imprinting on the steel plates, thereby ensuring the surface quality of the steel plates, but also prevents the working rollers from overheating during straightening, thus avoiding the problem of a narrow roll gap caused by the expansion of the working rollers. This significantly reduces the warping of the steel plates and the appearance of imprinting on the working roller surfaces. This utility model not only improves the quality of the steel plates, but also extends the service life of the straightening machine working rollers, reduces downtime due to failures, and effectively ensures the stable operation of the production line.
Claims
1. A water vapor cooling device for the external working roll of a straightening machine, characterized by: It includes a cooling water drain pipe arranged between the working rolls of the straightening machine, the inlet of the cooling water drain pipe is connected to the cooling water distribution pipe, the cooling water distribution pipe is provided with a water inlet and an air inlet, and the water inlet and the air inlet are connected to a water source and an air source respectively.
2. The external water vapor cooling device for the working roll of a straightening machine according to claim 1, characterized in that: The water inlet is arranged at one end of the cooling water distribution pipe, and a first on-off valve is arranged on the pipeline between the water inlet and the water source.
3. The external water vapor cooling device for the working roll of a straightening machine according to claim 2, characterized in that: There are two air inlets, one of which is arranged at the other end of the cooling water distribution pipe, and the other is arranged on the pipe body close to one end of the water inlet. A second on-off valve is provided on the pipeline between the air inlet and the air source.
4. The external water vapor cooling device for the working roll of a straightening machine according to claim 3 is characterized in that: The first on-off valve and the second on-off valve are both pneumatic butterfly valves.
5. The external water vapor cooling device for the working roll of a straightening machine according to any one of claims 1 to 4, characterized in that: The gas source is compressed air.