Operation control method of three-section walking beam

A technology of operation control and walking beam, which is applied in the field of steel rolling reheating furnace, and can solve problems such as failure to meet the requirements of linkage or different synchronous distances between two sections of beams, damage to walking equipment, and billet jamming.

Pending Publication Date: 2018-05-29
SHENWU TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] However, since the two-section walking beam type is used to control the operation separately, it cannot meet the requirements of linkage or different step distances of the two-section beams during operation, which greatly restricts its use.
It is easy to overturn the steel billet at the place where the two beams are connected, which may cause the steel billet to be stuck in the gap between the two walking beams and damage the walking equipment

Method used

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  • Operation control method of three-section walking beam
  • Operation control method of three-section walking beam
  • Operation control method of three-section walking beam

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] An embodiment of the present invention discloses a method for controlling the operation of a three-stage walking beam. The operation of the three-stage walking beam adopts feedback control combining PID three-cross and double-cross. Specifically, such as figure 1 As shown, the feedback control of the PID three-cross and double-cross combination includes: when the three-section walking beam is running synchronously, the operation result of each section of the walking beam is fed back to the control loop of the other two walking beams; or,

[0037] When any two sections of the three-section w...

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Abstract

The invention relates to an operation control method of a three-section walking beam. PID three-crossing and double-crossing combined feedback control is adopted for the operation of the three-sectionwalking beam. According to the operation control method of the three-section walking beam of the present invention, PID control, three-crossing and double-crossing feedback are combined, so that thedefect that the control of the operation of the three-section walking beam cannot be realized in the prior art can be eliminated, and the problem that separate control cannot satisfy requirements of linkage or different step pitches in the prior art can be solved; the operation of a steel slab at the joint of two beam sections is stable; and the synchronous and different-step-pitch operation of the three-section walking beam can be realized.

Description

technical field [0001] The invention relates to the technical field of rolling steel reheating furnaces, in particular to an operation control method of a three-section walking beam. Background technique [0002] In the special steel rolling reheating furnace, there are strict requirements and restrictions on the heating time of the billet and the holding time of the billet at different temperatures. When entering the furnace, the steel billet is in the low temperature section, which takes a long time, but in the high temperature section, it needs to be tapped quickly. If a set of stepping machinery is used, it will not be able to meet the requirements of slow in and fast out. When slowing down, the rolling rhythm of the rolling mill will inevitably decrease, and when fast exiting, the temperature requirements of the billet entering the furnace cannot be satisfied. At this time, a segmented, three-stage stepping machine is used to meet the production process requirements. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
CPCG05B19/058G05B2219/163
Inventor 和静民吴道洪
Owner SHENWU TECH GRP CO LTD
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