Hydraulic transmission system for slide runner of continuous casting ladle

Abstract

A continuous casting ladle sliding nozzle hydraulic transmission system, which consists of a pressure-adjustable electro-hydraulic source, an emergency hydraulic source, a three-position four-way H-type neutral function manual reversing valve, an oil filter device, a quick connector, a hose, and a working Oil cylinder composition. The pressure oil provided by the electro-hydraulic source passes through the interface A of the H-type mid-position function manual directional valve, passes through the two-position directional valve, and then goes through the oil filter device, quick connector, and hose to the rodless chamber in the working cylinder to realize sliding. The water port is closed; the pressure oil goes to the rod cavity in the working cylinder through the interface B, the oil filter device, the quick connector and the hose, and the piston rod is pushed to realize the opening of the sliding water port. The H-type neutral function manual reversing valve can release the pressure by itself when it returns to the neutral position, which is beneficial to the connection of the quick joint. In the event of a power failure in an unexpected situation, you only need to shake the handle of the emergency hydraulic source repeatedly to automatically cut off the electro-hydraulic source. The emergency hydraulic source provides pressure oil to the rodless cavity in the working cylinder, and the sliding nozzle can also be closed to avoid the accident of molten steel loss and burning equipment.

Description

technical field [0001] The invention relates to a hydraulic transmission system for opening or closing a sliding nozzle of a continuous casting ladle in metallurgical continuous casting production. Background technique [0002] As the background technology of the present invention, an electromagnetic reversing valve is used in production practice, and an accumulator is used as an emergency hydraulic source as a hydraulic transmission system for the sliding nozzle of a continuous casting ladle. In the event of a jamming fault, the emergency operation of the accumulator is also prone to invalidation, resulting in the failure of the sliding nozzle to be closed in time, resulting in the loss of molten steel and even damage to the equipment. Contents of the invention [0003] The object of the present invention is to provide a hydraulic transmission system or device for continuous casting ladle sliding nozzles with reliable reversing and emergency hydraulic sources. Quick conn...

AI Technical Summary

Problems solved by technology

[0002] As the background technology of the present invention, an electromagnetic reversing valve is used in production practice, and an accumulator is used as an emergency hydraulic source as a hydraulic transmission system for the sliding nozzle of a continuous casting ladle. In the event of a jamming fault, the emergency operation of the accumulator is also prone to invalidation, resulting in the failure of the sliding nozzle to be closed in time, resulting in the loss of molten steel and even damage to the equipment

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