Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave

An explosion shock wave, automatic closing technology, applied in mining installations, mining equipment, earthwork drilling and other directions, can solve problems such as hazards

Inactive Publication Date: 2009-09-16
樊铁山 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an explosion occurred especially in an air shaft service area of ​​Duofengjing Coal Mine. The explosion-proof cover (door) installed in the air shaft was opened by the explosion shock wave. The negative pressure of the air shaft disappears due to the openi

Method used

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  • Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave
  • Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave
  • Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] In the first embodiment: the application of the method proposed by the present invention in the vertical shaft of the air shaft, including: the existing air shaft explosion-proof cover (1) and sealing groove (15), counterweight device (3), and anti-wind device (4) The structure and function of the auxiliary facilities are basically unchanged, and the guide device (8) of the explosion-proof cover, the limit device of the explosion-proof cover (1) and the automatic closing device of the explosion-proof cover (1) are added, which are characterized by: the explosion-proof cover (1) The limit device is installed on the explosion-proof cover (1) with four guide rods (6) and four sets of counterweight device uprights (12) on the top horizontal surface; the guide device (8) of the explosion-proof cover (1) is installed on the explosion-proof cover (1) The opening and closing of the explosion-proof cover (1) can only move vertically along the centerline of the air shaft; the automat...

Example Embodiment

[0038] Embodiment 2: Application of the method proposed by the present invention in an inclined shaft, and the rotating shaft (19) of the inclined shaft explosion-proof door (20) is on the top of the explosion-proof door (20), including: the existing air shaft explosion-proof door (20) and auxiliary facilities such as counterweight device (3) and anti-wind device (4) basically do not change the structure and function. The automatic closing device of the explosion-proof door (20) is added, which is characterized in that the explosion-proof door (20) has a guide Device and limit device, so when using the explosion-proof door (20), no guide device and limit device are added; the automatic closing device of the explosion-proof door (20) is installed with two sets; the automatic closing device of the explosion-proof door (20), the tension spring The end is directly installed on the bottom plate (21) of the inner side of the explosion-proof door (20), and the trap end is directly connec...

Example Embodiment

[0040] In the third embodiment: the application of the method proposed by the present invention in the air shaft is an inclined shaft, and the rotating shaft (19) of the inclined shaft explosion-proof door (20) is on both sides of the shaft, including: the existing air shaft explosion-proof door (20) ) And ancillary facilities basically do not change the structure and function, add the automatic closing device of the explosion-proof door (20), which is characterized in that: because the explosion-proof door (20) has a guiding device and a limit device, it is not added when using the explosion-proof door (20) Guide device and limit device; two sets of automatic closing devices for explosion-proof doors (20) are installed on each door, a total of four sets are installed crosswise; automatic closing devices for explosion-proof doors, trap end and the edge of the door panel of explosion-proof doors (20) Directly connected, the end of the tension spring is directly installed on the inn...

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PUM

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Abstract

Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave belongs to the coal mine safety technical field. The method needs components of aa present ventilation shaft explosion-proof cover (door), a sealing groove, a counterweight device and an air reversing device which have unchanged structure and function, an additional guiding device of the explosion-proof cover, a stop device of the explosion-proof cover and an automatic closing device of the explosion-proof cover (door); the guiding device of the explosion-proof device makes the closing and opening of the explosion-proof cover vertically move along well center line; the stop device of the explosion-proof cover comprises an outer ring, a pressure reduction spring and an inner ring, is a lifting stop position of the explosion-proof cover for buffering; the automatic closing device of the explosion-proof cover (door) comprises a stretching spring, a safety belt and a coiler, is directly arranged on well wall or floor plate, and is directly connected with the explosion-proof cover (door), so that the automatic closing device can automatically close explosion-proof cover (door) after opening by explosion shock wave. In addition, the method does not influence functions of the explosion-proof cover (door) and auxiliary facility, and solves problem of ventilating current disorder after coal mine explosion.

Description

technical field [0001] The invention relates to a method for automatically closing an explosion-proof cover (door) of a coal mine after being opened by an explosion shock wave, in particular to a method for automatically closing an explosion-proof cover (door) of a multi-wind shaft coal mine after being opened by an explosion shock wave, and belongs to the technical field of coal mine safety. Background technique [0002] The explosion-proof cover (door) is a special facility installed on the wellhead of the wind shaft in the coal mine. It is called an explosion-proof cover installed on the vertical shaft, and is called an explosion-proof door installed on the inclined shaft. Its characteristics are: position: directly facing the wellhead; size: cover the entire section of the air shaft; function: when an explosion occurs underground in a coal mine, it will be opened by the shock wave to protect the fan from damage. At present, the explosion-proof cover (door) of coal mine a...

Claims

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Application Information

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IPC IPC(8): E21F17/12E05C19/00
Inventor 樊铁山
Owner 樊铁山
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