Automatic spray control device for hydraulic support

Abstract

The invention discloses an automatic spraying control device for a hydraulic support, and belongs to the technical field of coal mining safety facilities. The automatic spraying control device for the hydraulic support comprises a valve body provided with a falling support hydraulic oil hole, a lifting support hydraulic oil hole, a water source pipeline inlet, a water outlet, a falling support control valve cavity, a lifting support control valve cavity, a water inlet control valve cavity, a valve cavity communicating hole, and a valve cavity through hole, a falling support control valve matched with the falling support control valve cavity, a lifting support control valve matched with the lifting control valve cavity and a water inlet control valve matched with the water inlet control valve cavity. The automatic spraying control device for the hydraulic support has the advantages that usage requirements of being loaded on the hydraulic support are met, good automation control over a spray dust falling device is embodied, the interconnection effect between two adjacent valve bodies is good, and the cordwood modular combination requirements are met.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety facilities, and in particular relates to an automatic spray control device for a hydraulic support. Background technique [0002] The aforementioned hydraulic support is the supporting equipment for fully mechanized coal mining face. Its main function is to support the roof of the stope, maintain a safe working space, release the top coal, push the mining and transportation equipment of the working face, and so on. Since a large amount of dust (coal dust) will be generated when the hydraulic support of the fully mechanized mining face is lowered, moved, and top-coal caving, it is necessary to carry out dust suppression treatment. In the existing technology, workers generally implement dust suppression by manual spraying. This kind of Although the method can play a certain role in dust reduction, the labor intensity of the workers is high and the effective spraying cannot be carried out in...

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Problems solved by technology

[0004] The technical information of automatic spray control devices for hydraulic supports can be seen in the published Chinese patent documents, typically such as the "dual control spray valve for hydraulic supports" recommended by the authorized announcement number CN202731980U and the "automatic spray control valve for hydraulic supports" provided by CN203201574U ", although both of these two patent schemes mentioned that there is a reasonable combination with the hydraulic system of the coal mine hydraulic support to realize the control of the sprinkler dust suppression device, but they did not give the enlightenment of how to open or close the water inlet and outlet

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