Steel rolling control cooling device

Abstract

The utility model relates to the technical field of steel rolling devices, and solves the problems that water in a controlled cooling device of an existing steel rolling mill flows to the rear end and flows into a rear-section pipeline due to high water pressure and driving of moving steel bars, and the water in the rear-end pipeline is less and cannot completely wrap the steel bars for cooling, so that the upper and lower cooling of the steel bars is not uniform, and the service life of the steel bars is prolonged. And the problems of finished bent steel and end-to-end warping of the finished product are solved. The control cooling device comprises a cooling main pipe and a plurality of first connecting pipes connected with the water outlet end of the cooling main pipe, all the first connecting pipes are connected in sequence, a reverse water flapping assembly is connected between every two adjacent first connecting pipes, and the reverse water flapping assemblies are used for flushing water flow flowing backwards in the first connecting pipes and eliminating the water flow flowing backwards. According to the device, the water outlet end of the cooling main pipe is provided with a plurality of first connecting pipes communicated with the reverse water flapping assemblies, and the reverse water flapping assemblies enable water flowing backwards to flow back, so that the backward water flow is eliminated, bent steel of a finished product and head and tail warping of the finished product are reduced, and the rolling efficiency and the quality of the finished product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling devices, in particular to a steel rolling control cooling device. Background Art

[0002] Controlled cooling devices are often used as important devices in steel rolling mills. However, when rolling hot-rolled ribbed steel bars in steel rolling workshops, during the controlled cooling process, the water in the controlled cooling device will flow to the rear end due to the high water pressure and the movement of the steel bars, and flow in the rear pipe. There is less water in the rear pipe and the steel bars cannot be completely wrapped for cooling, resulting in uneven cooling of the steel bars, resulting in bent steel and warped ends of the finished products.

[0003] It can be seen that the controlled cooling device used in the existing steel rolling mill has the problem that the water therein will flow to the rear end due to the high water pressure and the driving force of the moving steel bars, and flow in the rear section of the pipeline. There is less water in the rear end pipeline and the steel bars cannot be completely wrapped for cooling, resulting in uneven cooling of the steel bars from top to bottom, forming defects such as bent steel and warped ends of the finished products. Utility Model Content

[0004] The utility model aims to solve the problem that the water in the controlled cooling device used in the existing steel rolling mill will flow to the rear end due to the large water pressure and the driving of the moving steel bars, and flow in the rear section of the pipeline. The water in the rear end pipeline is less and cannot completely wrap the steel bars for cooling, resulting in uneven cooling of the steel bars from top to bottom, resulting in bent steel and warped ends of the finished products. The utility model provides a controlled cooling device for steel rolling.

[0005] The specific technical solution of the utility model is as follows:

[0006] A steel rolling control cooling device comprises: a cooling main pipe and several first connecting pipes connected to the water outlet end of the cooling main pipe, each first connecting pipe is connected in sequence, and a backlash water component is connected between two adjacent first connecting pipes, and the backlash water component is used to flush the water flowing backward in the first connecting pipe and eliminate the water flowing backward.

[0007] Working and use process: When using the steel rolling control cooling device to roll steel bars, water flows from the cooling main pipe to the first connecting pipe at the rear end. At this time, the back-flow water component is turned on. The control cooling device sets several first connecting pipes connected to the back-flow water component at the water outlet of the cooling main pipe. The back-flow water component flushes the water flowing backward in the first connecting pipe, so that the water is pushed back to the cooling main pipe, weakening or eliminating the backward water flow, thereby effectively reducing the bending of finished steel and the warping of the head and tail of the finished product, improving the rolling efficiency and the quality of the finished product. It solves the problem that the water in the control cooling device used in the existing steel rolling mill will flow to the rear end due to the high water pressure and the moving steel bars, and flow in the rear pipe. The water in the rear pipe is less and cannot completely wrap the steel bars for cooling, resulting in uneven cooling of the steel bars from top to bottom, forming the problem of bending of finished steel and warping of the head and tail of the finished product.

[0008] Furthermore, the recoil water assembly includes a water outlet connected to a water source, a water storage component connected to the water outlet, and several diverter nozzles connected to the water storage component, each of the diverter nozzles is respectively connected between two adjacent first connecting pipes, and the diverter nozzle is used to spray recoil water flow.

[0009] Furthermore, the direction of the rebound water flow is 0 to 90 degrees with the direction of the water flow in the first connecting pipe.

[0010] Furthermore, the water pressure at the water outlet is 1.8-2.5 MPa.

[0011] Furthermore, the water pressure of the diverter nozzle is 4.0-4.8 MPa.

[0012] Furthermore, a mounting base is provided on the outer periphery of the cooling main pipe.

[0013] Furthermore, a gas recoil device is provided between the cooling main pipe and the first first connecting pipe for recoil flushing the water.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model provides a steel rolling control cooling device. When the steel rolling control cooling device is used to roll steel bars, water flows from the cooling main pipe to the first connecting pipe at the rear end. At this time, the back-flow water component is turned on. The control cooling device sets several first connecting pipes connected to the back-flow water component at the water outlet of the cooling main pipe. The back-flow water component flushes the water flowing backward in the first connecting pipe, so that the water is pushed back to the cooling main pipe, weakening or eliminating the backward water flow, thereby effectively reducing the bending of finished steel and the warping of the head and tail of the finished product, improving the rolling efficiency and the quality of the finished product. It solves the problem that the water in the control cooling device used in the existing steel rolling mill will flow to the rear end due to the high water pressure and the moving steel bars, and flow in the rear pipe. The water in the rear pipe is less and cannot completely wrap the steel bars for cooling, resulting in uneven cooling of the steel bars from top to bottom, forming the problem of bending of finished steel and warping of the head and tail of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a steel rolling control cooling device provided in an embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of a backwash water component of a steel rolling control cooling device provided by the embodiment of the utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the structure of a backwash water component of a steel rolling control cooling device provided by the embodiment of the utility model. Figure 2 .

[0019] Description of the figure logo:

[0020] 1-base, 2-cooling main pipe, 3-first connecting pipe, 4-diverter nozzle, 5-water storage part. Specific embodiments

[0021] Please combine Figure 1 An embodiment of the utility model provides a steel rolling control cooling device, comprising: a cooling main pipe 2 and several first connecting pipes 3 connected to the water outlet end of the cooling main pipe 2, each first connecting pipe 3 is connected in sequence, and a backlash water component is connected between two adjacent first connecting pipes 3, and the backlash water component is used to flush the water flowing backward in the first connecting pipe 3 and eliminate the water flowing backward.

[0022] Working and use process: When using the steel rolling control cooling device to roll steel bars, water flows from the cooling main pipe 2 to the first connecting pipe 3 at the rear end. At this time, the back-flow water component is turned on. The control cooling device sets several first connecting pipes 3 connected to the back-flow water component at the water outlet end of the cooling main pipe 2. The back-flow water component flushes the water flowing backward in the first connecting pipe 3, so that the water is pushed back to the cooling main pipe 2, weakening or eliminating the backward water flow, thereby effectively reducing the bending of finished steel and the warping of the head and tail of the finished product, improving the rolling efficiency and the quality of the finished product. It solves the problem that the water in the control cooling device used in the existing steel rolling mill will flow to the rear end due to the high water pressure and the moving steel bars, and flow in the rear pipe. The water in the rear pipe is less and cannot completely wrap the steel bars for cooling, resulting in uneven cooling of the steel bars from top to bottom, forming the problem of bending of finished steel and warping of the head and tail of the finished product.

[0023] In some embodiments of the present invention, please combine Figure 1 and Figure 2 The recoil water assembly includes a water outlet connected to a water source, a water storage component 5 connected to the water outlet, and several diverter nozzles 4 connected to the water storage component 5. Each of the diverter nozzles 4 is respectively connected between two adjacent first connecting pipes 3, and the diverter nozzles 4 are used to spray recoil water flow.

[0024] In some embodiments of the present invention, the angle at which the diverter nozzle 4 is connected to the water storage member 5 is adjustable, so as to provide a counterflow water flow at a certain angle to the water flow direction in the first connecting pipe 3 .

[0025] In some embodiments of the present invention, please combine Figure 1 , Figure 2 and Figure 3 The direction of the backlash water flow and the water flow in the first connecting pipe 3 are 0 to 90 degrees.

[0026] In certain embodiments of the present invention, the angle between the rebound water flow and the water flow direction in the first connecting pipe 3 is preferably 30 degrees.

[0027] It can be understood that by adjusting the angle between the rebound water flow and the water flow direction in the first connecting pipe 3, a higher-pressure rebound water flow can be formed, which, through counteraction, reduces or eliminates the backward flowing water brought out by the control cooling device.

[0028] In some embodiments of the present invention, the water pressure at the water outlet is 1.8-2.5 MPa.

[0029] In certain embodiments of the present invention, the water pressure at the water outlet is preferably 2.3 MPa.

[0030] In some embodiments of the present invention, the water pressure of the diverter nozzle 4 is 4.0-4.8 MPa.

[0031] In certain embodiments of the present invention, the water pressure of the diverter nozzle 4 is preferably 4.5 MPa.

[0032] It can be understood that by controlling the water pressure at the water outlet and the water pressure at the diverter nozzle 4, a relatively high-pressure rebound water flow can be formed, which can reduce or eliminate the backward flowing water flow brought out by the control cooling device through counteraction.

[0033] In some embodiments of the present invention, please continue to refer to Figure 1 The outer periphery of the cooling main pipe 2 is provided with a mounting base 1. The arrangement of the base 1 enables the control cooling device to be easily installed and fixed.

[0034] In certain embodiments of the utility model, a gas recoil device is further provided between the cooling main pipe and the first first connecting pipe, for recoil the water. Recoiling the water can make the recoil water effect better. The gas recoil device is a commercially available gas recoil device or gas counter-flushing device. It can be an air pump for spraying gas into the pipeline, for further recoil and counter-flushing the water, so that the recoil water effect is better.

[0035] Example 1

[0036] In this embodiment, a steel rolling control cooling device is provided. Figure 1 and Figure 2 , including: a cooling main pipe 2 and several first connecting pipes 3 connected to the water outlet end of the cooling main pipe 2, each first connecting pipe 3 is connected in sequence, and a rebound water component is connected between two adjacent first connecting pipes 3, and the rebound water component is used to flush the water flowing backward in the first connecting pipe 3 and eliminate the water flowing backward.

[0037] Example 2

[0038] In this embodiment, based on the embodiment 1, please refer to Figure 1 and Figure 2 The recoil water assembly includes a water outlet connected to a water source, a water storage component 5 connected to the water outlet, and several diverter nozzles 4 connected to the water storage component 5. Each of the diverter nozzles 4 is respectively connected between two adjacent first connecting pipes 3, and the diverter nozzles 4 are used to spray recoil water flow.

[0039] Example 3

[0040] In this embodiment, based on the embodiment 1, please refer to Figure 1 , Figure 2 and Figure 3, the direction of the backwash water flow is 0 to 90 degrees with the water flow in the first connecting pipe 3. In some embodiments of the utility model, the water pressure at the water outlet is 1.8 to 2.5 MPa. In some embodiments of the utility model, the water pressure of the diverter nozzle 4 is 4.0 to 4.8 MPa.

[0041] Example 4

[0042] In this embodiment, based on the embodiment 1, please continue to refer to Figure 1 A mounting base 1 is provided on the outer periphery of the cooling main pipe 2 .

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel rolling controlled cooling device, characterized in that: include: A cooling main pipe and several first connecting pipes connected to the water outlet end of the cooling main pipe, each first connecting pipe is connected in sequence, and a rebound water component is connected between two adjacent first connecting pipes. The rebound water component is used to flush the water flowing backward in the first connecting pipe and eliminate the water flowing backward.

2. A steel rolling controlled cooling device according to claim 1, characterized in that: The recoil water assembly includes a water outlet connected to a water source, a water storage component connected to the water outlet, and several diversion nozzles connected to the water storage component, each of the diversion nozzles is respectively connected between two adjacent first connecting pipes, and the diversion nozzle is used to spray recoil water flow.

3. A steel rolling controlled cooling device according to claim 2, characterized in that: The direction of the rebound water flow is 0 to 90 degrees with the water flow direction in the first connecting pipe.

4. A steel rolling controlled cooling device according to claim 2, characterized in that: The water pressure at the water outlet is 1.8-2.5 MPa.

5. A steel rolling controlled cooling device as claimed in claim 2, characterized in that: The water pressure of the diverter nozzle is 4.0-4.8 MPa.

6. A steel rolling controlled cooling device as claimed in claim 1, characterized in that: A mounting base is arranged on the outer periphery of the cooling main pipe.

7. A steel rolling controlled cooling device as claimed in claim 1, characterized in that: A gas recoil device is also provided between the cooling main pipe and the first first connecting pipe for recoil flushing the water.

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