Hydraulic multi-cylinder synchronous intelligent control system for large-scale vacuum smelting furnace

Abstract

The invention provides a hydraulic multi-cylinder synchronous intelligent control method for a large-scale vacuum smelting furnace. A synchronous intelligent control system comprises a furnace cover hydraulic proportional amplification controller connected with a furnace cover hydraulic cylinder proportional valve, and an ingot-pulling tank hydraulic proportional amplification controller connectedwith an ingot-pulling tank hydraulic cylinder proportional valve. The furnace cover hydraulic proportional amplification controller is connected with a furnace cover PLC controller; the ingot-pullingtank hydraulic proportional amplification controller is connected with an ingot-pulling tank PLC controller; and the furnace cover PLC controller and the ingot-pulling tank PLC controller are separately connected with a remote center control host computer through network. The furnace cover, multiple hydraulic cylinders of an ingot-pulling tank control system can be accurately and synchronously opened or closed, the errors are within 1 mm, and a furnace body is completely sealed; the precision control rate, the stability and the reliability are very high, and the production and intelligent control requirements are fully satisfied; the equipment failure rate is reduced, and opening and closing of the furnace cover, ingot pulling and sealing operation can be sent to the center control host computer for supervision through the network.

Description

technical field [0001] The invention relates to a control system, in particular to a hydraulic multi-cylinder synchronous intelligent control system for a large-scale vacuum melting furnace, which belongs to the technical field of automatic control. Background technique [0002] In large-scale vacuum melting furnaces, especially large-scale vacuum electronic quick-freezing cold-bed furnaces, the opening and closing system of the existing furnace cover and ingot chamber is limited by the production process, its own technical conditions and vacuum sealing technology requirements, and the existing HAWE programming controller The cost is high, the programming is more complicated and difficult, and the programming software is difficult to purchase, and the compatibility is single, so that the hydraulic control of the existing furnace cover and the hydraulic control of the ingot drawing cabin cannot be synchronized, and it is difficult to realize the complete sealing of the furnace...

AI Technical Summary

Problems solved by technology

[0002] In large-scale vacuum melting furnaces, especially large-scale vacuum electronic quick-freezing cold-bed furnaces, the opening and closing system of the existing furnace cover and ingot chamber is limited by the production process, its own technical conditions and vacuum sealing technology requirements, and the existing HAWE programming controller The cost is high, the programming is more complicated and difficult, and the programming software is difficult to purchase and the compatibility is single, so that the hydraulic control of the existing furnace cover and the hydraulic control of the ingot drawing chamber cannot be synchronized, and it is difficult to realize the complete sealing of the furnace body and ensure the vacuum in the furnace. Normal smelting production

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