Intermediate billet cooling device

Abstract

The utility model discloses an intermediate billet cooling device which comprises an upper collecting pipe, a lower collecting pipe and a water inlet tank, the lower collecting pipe is arranged between two roller ways, the upper collecting pipe is arranged above the lower collecting pipe, the opening ends of the upper collecting pipe and the lower collecting pipe are respectively connected with the water inlet tank, and a plurality of nozzles are arranged on the upper collecting pipe and the lower collecting pipe. According to the device, the intermediate billet is cooled with stable water quantity through the upper header and the lower header, the temperature control cooling time of the intermediate billet is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical industry, and specifically relates to an intermediate billet cooling device. Background Art

[0002] The 3m5 line is a double-stand medium and thick plate production line, consisting of two stands: a roughing mill and a finishing mill. During the production process, the intermediate billet after rolling by the roughing mill is transported to the finishing mill. According to the process requirements, it needs to be temperature-controlled and cooled before rolling. Some steel grades have a relatively long waiting time, with an average time of about 60 seconds. In order to save temperature control and cooling time, an intermediate billet cooling device is designed to improve production efficiency. Utility Model Content

[0003] Technical problem solved: In view of the above technical problem, the utility model provides an intermediate billet cooling device, which can reduce the temperature control cooling time of the intermediate billet and improve production efficiency.

[0004] Technical solution: An intermediate billet cooling device includes an upper header, a lower header and a water inlet box, the lower header is arranged between two rollers, the upper header is arranged above the lower header, the open ends of the upper header and the lower header are respectively connected to the water inlet box, and a plurality of nozzles are provided on the upper header and the lower header.

[0005] Preferably, the distance from the plane where the upper header is located to the plane where the roller is located is 700 cm.

[0006] Preferably, the number of the upper headers is 2, and the number of the lower headers is 2.

[0007] Preferably, manual valves are provided on the pipe connecting the open end of the upper header and the water inlet tank and on the pipe connecting the open end of the lower header and the water inlet tank.

[0008] Furthermore, an electromagnetic pneumatic valve is provided on the pipeline between the manual valve and the opening end of the upper manifold and on the pipeline between the manual valve and the opening end of the lower manifold, and the opening and closing of the electromagnetic pneumatic valve is controlled by a PLC controller.

[0009] Preferably, the length of the upper header and the length of the lower header are both the same as the length of the roller table.

[0010] Preferably, the nozzle model on the upper header is consistent with the nozzle model on the lower header.

[0011] Beneficial effects: The device of the utility model is arranged between two rollers. When the intermediate billet enters the cooling device, the upper and lower headers cool the intermediate billet with a stable amount of water, thereby reducing the temperature control cooling time of the intermediate billet and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a structural schematic diagram of an intermediate billet cooling device of the utility model;

[0013] Serial numbers in the figure: 1, roller table, 2, lower header, 3, upper header, 4, nozzle, 5, electromagnetic pneumatic valve, 6, manual valve, 7, water inlet tank. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings. Example 1

[0015] Reference Figure 1 A device for cooling an intermediate billet comprises two upper headers 3, two lower headers 2 and a water inlet box 7. The two lower headers 2 are arranged between two rollers 1, replacing the grid plates between the original rollers. The two upper headers 3 are arranged above the lower headers 2, and the distance from the plane where the upper headers 3 are located to the plane where the rollers 1 are located is 700 cm. This height can prevent the upper headers 3 from being hit by the intermediate billet and ensure the water spray response time of the upper headers 3. The length of the upper header and the length of the lower header are the same as the length of the rollers. The open ends of the upper headers 3 and the lower headers 2 are respectively connected to the water inlet box 7, and 22 nozzles 4 are provided on the upper headers 3 and the lower headers 2. The nozzle model on the upper header is consistent with the nozzle model on the lower header to increase the water flow and maintain the cooling effect.

[0016] Manual valves 6 are provided on the pipe connecting the open end of the upper collecting pipe 3 and the water inlet tank 7, and on the pipe connecting the open end of the lower collecting pipe 2 and the water inlet tank 7, so as to adjust the water flow of the collecting pipes and facilitate the replacement of the electromagnetic pneumatic valve 5; electromagnetic pneumatic valves 5 are provided on the pipe between the manual valve 6 and the open end of the upper collecting pipe 3 and on the pipe between the manual valve 6 and the open end of the lower collecting pipe 2, and the opening and closing of the electromagnetic pneumatic valve 5 are controlled by a PLC controller (not shown in the figure).

[0017] When in use, the intermediate billet cooling device is installed between the roughing mill and the finishing mill. The nozzle 4 starts to spray water before the intermediate billet reaches the cooling device. When the intermediate billet enters the cooling device, the upper and lower manifolds cool the intermediate billet with a stable amount of water, reducing the temperature control cooling time and thereby improving production efficiency.

[0018] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An intermediate billet cooling device, characterized in that: It includes an upper header, a lower header and a water inlet box, the lower header is arranged between two roller tables, the upper header is arranged above the lower header, the open ends of the upper header and the lower header are respectively connected to the water inlet box, and a plurality of nozzles are provided on the upper header and the lower header; manual valves are provided on the pipe connecting the open end of the upper header and the water inlet box and on the pipe connecting the open end of the lower header and the water inlet box; electromagnetic pneumatic valves are provided on the pipe between the manual valve and the open end of the upper header and on the pipe between the manual valve and the open end of the lower header, and the opening and closing of the electromagnetic pneumatic valves are controlled by a PLC controller.

2. The intermediate billet cooling device according to claim 1, characterized in that: The distance from the plane where the upper header is located to the plane where the roller is located is 700 cm.

3. The intermediate blank cooling device according to claim 1, characterized in that: The number of the upper headers is 2, and the number of the lower headers is 2.

4. The intermediate billet cooling device according to claim 1, characterized in that: The length of the upper header and the length of the lower header are both the same as the length of the roller table.

5. The intermediate billet cooling device according to claim 1, characterized in that: The nozzle model on the upper header is consistent with the nozzle model on the lower header.

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