Mine ventilation anti-explosion well lid
A technology for mine ventilation and manhole cover, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc., and can solve problems such as affecting mine safety and failing to meet the requirements of wind flow direction.
Active Publication Date: 2021-07-23
内蒙古上海庙矿业有限责任公司
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At this time, because there is no preparation, the ventilator driver cannot complete the compression of the explosion-proof manhole cover and the reverse operation of the fan within 10 minutes, and cannot meet the requirement of changing the air flow direction in the roadway within 10 minutes, which affects the safety of the mine.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] In order to make the object, technical solution and beneficial effect of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.
[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear" etc. are based on the Orientation or positional relationship is only for the convenience of des...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a mine ventilation anti-explosion well lid, and relates to the technical field of mine equipment. The mine ventilation anti-explosion well lid comprises an outer well lid body, an inner well lid body, a first sliding rod, a first elastic piece, supporting rods, a sliding sleeve, second sliding rods, second elastic pieces, first fixed pulleys, second fixed pulleys, limiting sleeves, limiting tongues, pulley supports, third fixed pulleys, a first rope, a second rope and balancing weights. According to the mine ventilation anti-explosion well lid, in the normal operation state, sealing of the outer well lid and a well mouth is achieved. When explosion occurs in an underground coal mine, buffering of the outer well lid and the inner well lid is achieved, the outer well lid is prevented from being damaged, and high-pressure air waves are discharged from the well mouth. After the explosion is finished, the outer well lid is sealed on the well mouth again. During reverse ventilation, the outer well lid and the well mouth are kept airtight. When the ventilator breaks down, the outer well lid is opened quickly, and natural ventilation of the mine is achieved under natural wind pressure.
Description
technical field [0001] The invention relates to the technical field of mine equipment, in particular to an explosion-proof manhole cover for mine ventilation. Background technique [0002] The explosion-proof manhole cover is installed at the wellhead of the return air shaft of the coal mine. During normal operation, the explosion-proof manhole cover and the wellhead are sealed. After the explosion is over, reseal the explosion-proof manhole cover on the wellhead so that the ventilator can continue to operate normally and ensure the normal operation of the underground ventilation. In the current explosion-proof manhole cover, after the explosion, the explosion-proof manhole cover is impacted by the high-pressure air wave to a position far from the wellhead, and it takes a long time to reset and seal the explosion-proof manhole cover on the wellhead. The impact is damaged, and the airtightness of the wellhead cannot be realized in time, which seriously affects the ventilatio...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/16
CPCE21F1/16
Inventor 田丰翟军存王子祥吴宝峰蔡贵平李永超刘统申
Owner 内蒙古上海庙矿业有限责任公司