Strip steel reeling temperature controlling method and device

A technology of coiling temperature and control method, which is applied to the coiling temperature control of hot-rolled strip steel and the device field of strip steel coiling temperature control. It can solve the problems of increasing operation and control costs and increasing control difficulty, and achieves temperature control. The method is simple and accurate, the effect of reducing the number of samples and shortening the length

Inactive Publication Date: 2007-06-06
SHAGANG GROUP
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Problems solved by technology

[0005] Although the cooling device can realize the computer control of the coiling temperature of the strip steel, the complexity of the computer cooling control system increases the uncertainty of the cooling factors because the cooling zone is too long. On the other hand, there are too many temperature measuring points, which not only increases the The cost of operation and control also increases the difficulty of control accordingly

Method used

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  • Strip steel reeling temperature controlling method and device
  • Strip steel reeling temperature controlling method and device

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Embodiment Construction

[0022] The strip coiling temperature control method is to set a cooling zone along the running direction of the strip, distribute two cooling sections, the main cooling section and the finishing cooling section in turn, and set up three temperature measuring devices in the water spray cooling area to detect the temperature of the strip. Steel temperature, and as the feed-forward parameter of the computer control system, the computer control system compares the feed-forward parameter with the set value and compensates, thereby adjusting the water spraying amount of the water spray header and the coiling speed of the strip to control the coiling of the strip. Coiling temperature.

[0023] As shown in the figure, the cooling zone of the strip coiling temperature control device using this temperature control method is mainly composed of seventeen groups of upper laminar flow headers and a corresponding number of lower spray headers. The cooling zone is composed of the main cooling ...

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Abstract

The strip steel reeling temperature controlling method and device belongs to the field of strip steel reeling temperature controlling technology. The strip steel reeling temperature controlling device includes one cooling area comprising water spraying header pipe and one computerized control system, and features that three temperature measuring units are set along the strip steel moving direction in the cooling area to obtain the feed forward parameters for computerized control and the computerized control system compares the feed forward parameters with the set values for compensating and regulating the water spraying amount and the reeling speed so as to control the reeling temperature. The present invention can raise the reeling temperature controlling precision and raise the mechanical performance of the strip steel product.

Description

technical field [0001] The invention belongs to the technical field of controlling the coiling temperature of rolled steel, and in particular relates to a method for controlling the coiling temperature of hot-rolled strip steel and a device for controlling the coiling temperature of the strip steel by applying the method. Background technique [0002] In the hot-rolled strip production process, the coiling temperature of the hot-rolled strip has an important influence on the microstructure and mechanical properties of the hot-rolled strip. After the hot-rolled strip leaves the finishing mill and before entering the coiler, rapid cooling and precise control of the hot-rolled strip are required to achieve the ideal strip coiling temperature. [0003] The hot strip steel cooling system currently used is a water cooling device composed of an upper laminar flow header and a lower spray header. The cooling method of this device is to use multiple temperature measuring points to me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/74G05D23/19G05D23/185B21B45/02B21C47/02
Inventor 范礼松
Owner SHAGANG GROUP
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