TECHNICAL IMPROVEMENT OF HYDRAULIC EQUIPMENT FOR CONTINUOUS CASTERS
In order to realize the green,efficient and long-term operation of the hydraulic system of iron and steel metallurgy continuous casting,Zhang Xuan Technology has carried out technical improvement and equipment research and development on key equipment such as hydraulic cylinders,control technology and filtration devices in view of the unstable operation of the hydraulic system of two billet continuous casters of Special Steel Company,the short life of the hydraulic cylinder and the oil leakage can not meet the requirements of high-end equipment manufacturing process.The first double-piston hydraulic cylinder drive technology is based on the principle of nesting,adopts composite double-piston cylinder and piston rod jacking structure,under the condition of the same cylinder barrel diameter,increases the jacking area in the cylinder by increasing the number of hydraulic cylinder working chambers,and realizes the single-cylinder drive of continuous casting ladle lifting instead of multi-cylinder drive;The piston is sealed,and at the same time,the two oil ports of the hydraulic cylinder are connected with seamless steel pipes,the cooling bed lifting hydraulic cylinder adopts a new structure of conical spring and variable throttle buffer,and the high-pressure return filtration technology developed adopts"high-pressure filtration + one-way valve"to achieve a high degree of hydraulic oil purification.After the application of new technologies and equipment optimization,the service life and control accuracy of hydraulic equipment have been effectively improved,the technical indicators of continuous casting production and the stable control of product performance have been achieved,and the efficient,green,low-cost and high-quality production of steelmaking continuous casting has been realized,while the consumption of energy medium has been reduced,and the carbon emission reduction of the steel industry has been promoted.
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