Coal mine vertical wind well explosion-proof door advanced explosion venting device and explosion-proof door

A technology of explosion-proof doors and vertical air shafts, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling, etc., can solve the problems of difficulty in popularizing new type of vertical air shaft explosion-proof doors, high construction and upgrading costs, and achieve enhanced explosion-proof capabilities and Safety and reliability, small amount of engineering, good anti-knock performance

Active Publication Date: 2017-09-12
HENAN POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fact that mandatory technical standards have not yet been formed, and the cost of construction and upgrading is relatively high, it is difficult to popularize the new type of vertical shaft explosion-proof doors, and the current vertical shaft explosion-proof door technology with serious defects and potential safety hazards is still widely used

Method used

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  • Coal mine vertical wind well explosion-proof door advanced explosion venting device and explosion-proof door
  • Coal mine vertical wind well explosion-proof door advanced explosion venting device and explosion-proof door
  • Coal mine vertical wind well explosion-proof door advanced explosion venting device and explosion-proof door

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Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 , image 3 , Figure 4 and Figure 5 As shown in the figure, a coal mine vertical air shaft explosion-proof door advance explosion-venting device and explosion-proof door, including umbrella-type door body (M) and the first explosion-venting device;

[0029] The advance explosion venting device includes an explosion venting cover (1), a base (2), a hinge seat (3), a return spring (4), and an anti-wind lock (5); the explosion venting cover (1) includes a metal cover plate (101), a sealing block (102) bonded to the lower surface of the metal cover (101), and a buffer pad (103) bonded to the upper surface of the metal cover (101); the base (2) It is a steel inverted conical cylinder, the sealing block (102) is a table-shaped body closely matched with the base (2); the metal cover (101) is provided with a hinge (105) on one side, and the hinge The head (105) is hinged on the hinge base (3) through the hinge shaft; the coil part of the return spring (4) ...

Embodiment 2

[0032] Such as figure 2 , image 3 , Figure 6 and Figure 7 As shown in the figure, a coal mine vertical air shaft explosion-proof door advance explosion-venting device and explosion-proof door, including umbrella-type door body (M) and the first explosion-venting device;

[0033] The advance explosion venting device includes an explosion venting cover (1), a base (2), a hinge seat (3), a return spring (4), and an anti-wind lock (5); the explosion venting cover (1) includes a metal cover plate (101), a sealing block (102) bonded to the lower surface of the metal cover (101), and a buffer pad (103) bonded to the upper surface of the metal cover (101); the base (2) It is a steel inverted conical cylinder, the sealing block (102) is a table-shaped body closely matched with the base (2); the metal cover (101) is provided with a hinge (105) on one side, and the hinge The head (105) is hinged on the hinge base (3) through the hinge shaft; the coil part of the return spring (4)...

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Abstract

The invention discloses a coal mine vertical wind well explosion-proof door advanced explosion venting device and an explosion-proof door. The coal mine vertical wind well explosion-proof door advanced explosion venting device comprises a canopy type door body and an advanced explosion venting device, wherein the advanced explosion venting device comprises an explosion venting cover, a base, a hinge seat, a reset spring and an air reversing lock; the explosion venting cover comprises a metal cover plate, a sealing block and a cushion pad respectively adhered on the upper board and the lower board of the metal cover plate; a hinge head is arranged at one side of the metal cover plate, the hinge head is hinged with the hinge seat through a hinged shaft; a spring coil part of the reset spring is sleeved on the hinged shaft of the hinge seat, one pin thereof is fixed on the hinge head, and the other pin is overlapped on the hinge seat; the air reversing lock comprises a lock groove on the base and a spring bolt on the metal cover plate; a plurality of trapezoid explosion venting holes are equidistantly arranged on the canopy type door body around the center circumference; the lower end of the base is welded and fixed at the periphery of the explosion venting hole; and the hinge seat is welded and fixed on the canopy type door body. When the existing explosion-proof door is updated and transformed by using the explosion venting device disclosed by the invention, only the canopy type door body needs to be transformed, the work amount is small and the cost is low.

Description

technical field [0001] The invention relates to the technical field of mine ventilation safety, in particular to a pre-explosion venting device and an explosion-proof door for a vertical wind shaft explosion-proof door of a coal mine, which are used to improve the explosion-proof performance of the current vertical wind shaft explosion-proof door. Background technique [0002] Coal mine air shaft explosion-proof door is an important safety facility used to protect the main ventilator in the mine. Its function principle is to use the straight-line propagation characteristics of the shock wave to quickly release the shock airflow generated by the underground explosion, thereby reducing the damage to the main ventilator caused by the explosion shock wave. [0003] At present, a kind of canopy type explosion-proof door is generally adopted in my country's coal mine vertical shaft, which is composed of a canopy type door body, a sealed oil tank, a pulley frame, and a counterweight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/16
CPCE21F1/16
Inventor 宋维宾陈冰孙玉宁王明中刘俊领安安李振峰
Owner HENAN POLYTECHNIC UNIV
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