Spraying device for hydraulic support of front coal caving.

Abstract

The present utility model describes a spraying device for a frontal coal caving hydraulic support and relates to the technical field of coal mine equipment. The device is mounted on a box body of a front beam of the frontal coal caving hydraulic support. The device comprises a fixed base, where the fixed base is mounted by being fixed to a telescopic beam of the frontal coal caving hydraulic support, a channel is clamped to the fixed base, one front end of the channel enters the telescopic beam and is fitted with a nozzle in a leak-proof manner, and one rear end of the channel connects to a straight passage that connects to an external water pipe.The beneficial effects are as follows: the spray device has dust suppression and dust reduction functions; the spray device is mounted in a box-type inner part of the front beam of the hydraulic support, and thus, compared to conventional spray devices, this spray device can solve problems such as the spray device closing after a trench is retracted, making it impossible to perform activities such as dust removal during coal dropping when the front beam is lowered for coal caving, and similar issues; and it has qualities such as a neat appearance, safety and reliability, long service life, etc.; a spray system will not be affected by the retraction of a protective plate, and dust removal can be ensured during coal dropping when the front beam is lowered for coal caving; and a spray direction is always forward so as not to affect pedestrians.

Description

1 10 lower 2 15 25 3 30 4 5 20 use 6 15 7 15 30 8 a 25 te 9 10 - 25 5 20 Coal Mine Safety Regulations 11

Claims

12 1. u and 10 tip And And and 30 13 2. 3.15 4.20 And 30 14 6. 7 And 25

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