A billet heating furnace walking beam lifting cylinder lifting control system
A billet heating and lifting control technology, applied in heat treatment process control, heat treatment furnaces, furnaces, etc., can solve problems such as cracking, deformation of the walking beam lifting frame of the heating furnace, and failure to meet the synchronization accuracy requirements of the heating furnace.
Active Publication Date: 2022-03-25
MAANSHAN IRON & STEEL CO LTD
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Problems solved by technology
Therefore, with this "one valve and two cylinders" synchronous control method, the lifting cylinders on both sides of the walking beam lifting frame of the heating furnace cannot meet the synchronization accuracy requirements of the heating furnace equipment, which leads to the widespread existence of the walking beam lifting frame of the heating furnace The phenomenon of deformation and cracking, the deformation and cracking of the lifting frame of the walking beam of the large H-shaped steel heating furnace of the Maanshan Iron and Steel Long Products Division is one example
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[0027] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
[0028] NCM is a "numerical comparison" function block, when X1>X2, QU is '1', when X1=X2, QE is '1', when X1
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The invention discloses a lifting control system for the lifting cylinder of the walking beam of the billet heating furnace. Control unit, the lifting cylinder on the south side of the walking beam of the heating furnace automatically rises to the waiting position control unit, the lifting cylinder on the north side of the walking beam of the heating furnace automatically rises and connects the steel control unit, the lifting cylinder on the north side of the walking beam of the heating furnace automatically falls and falls steel control Unit, the lifting cylinder on the north side of the walking beam of the heating furnace automatically rises to the waiting position control unit and the actual position of the lifting cylinder of the heating furnace walking beam automatically maintains the control unit. The synchronous lifting control program of the walking beam lifting cylinder of the billet heating furnace can be used for various The synchronous control of the two-cylinder lifting drive walking beam improves the synchronization accuracy of the lifting cylinders on both sides of the walking beam lifting frame of the heating furnace.
Description
technical field [0001] The invention belongs to the technical field of electrical automation control, and more specifically, the invention relates to a lifting control system for a walking beam lifting cylinder of a billet heating furnace. Background technique [0002] For the walking-type billet heating furnace, the walking beam is mainly composed of a moving beam, a moving beam lifting frame (or a walking beam lifting frame) and a moving beam translation frame (or a walking beam translation frame). The walking beam lifting frame and the translation frame are usually driven by hydraulic cylinders, and the movement of the billet in the heating furnace is realized by the lifting, translational forward, lowering and translational retreat of the walking beam in the heating furnace. Because it is difficult to distribute the billet symmetrically on both sides of the furnace center line in the heating furnace, the lifting frame of the walking beam of the heating furnace is usually...
Claims
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IPC IPC(8): C21D9/70C21D11/00
CPCC21D9/70C21D9/0018C21D11/00
Inventor 叶光平
Owner MAANSHAN IRON & STEEL CO LTD