Pressure releasing automatic reset air shaft anti-explosion cover

A technology of automatic reset and explosion-proof cover, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc. It can solve problems such as damage to explosion-proof cover, affecting underground rescue work, etc., to achieve uniform impact force, equalize pressure, and reduce time. and human effect

Active Publication Date: 2014-07-30
YANGZHOU JIANGLONG MINING EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing mine explosion-proof covers are fixed. If a gas explosion occurs, the explosion-proof cover will be damaged, which will affect the underground rescue work.

Method used

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  • Pressure releasing automatic reset air shaft anti-explosion cover
  • Pressure releasing automatic reset air shaft anti-explosion cover
  • Pressure releasing automatic reset air shaft anti-explosion cover

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Embodiment Construction

[0014] Such as figure 1 As shown in -5, the present invention mainly includes a well cover 2 arranged on the wellhead 1, three guide sleeves 3 are connected to the outer periphery of the well cover 2 along the circumferential direction, and two guide pillars 4 are respectively inserted in each guide sleeve 3, each The lower ends of the guide pillars 4 are respectively fixed at the position of the wellhead 1, and the top ends of each guide pillar 4 are respectively provided with elastic limit blocks 5. The middle part above the well cover 2 is connected with a column 12 and four pressure relief devices 6 , each pressure relief device 6 is arranged on the outside of the column 12 along the circumferential direction, and each pressure relief device 6 is respectively connected with a locking mechanism 9 . Each pressure relief device 6 includes a pressure relief cylinder 13 respectively, the top of each pressure relief cylinder 13 is hinged cover door 14 respectively, and the inner...

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Abstract

A pressure releasing automatic reset air shaft anti-explosion cover relates to the field of ventilating safety of a coal mine and comprises a well lid arranged on a well mouth; at least two guide sleeves are connected to the outer peripheral edge of the well lid; a guide pillar is arranged in each guide sleeve in a penetrating mode; an elastic limiting block is arranged at the top end of each guide pillar; an upright pillar and a pressure releasing device are connected to the middle above the well lid; each pressure releasing device is respectively connected with a locking mechanism and comprises a pressure releasing drum; a cover door is hinged above each pressure releasing drum; an air spring is hinged into each pressure releasing drum; the telescopic end of each air spring is hinged to the inside of the corresponding cover door; the air springs are hinged onto the upright pillar; the telescopic end of each air spring is respectively hinged to the outside of the corresponding cover door; at least two hydraulic lifting machines are connected below the well lid; travel switches are connected onto the upright pillar; when being opened, each cover door makes contact with the corresponding travel switch and the hydraulic lifting machines are started to work. The pressure releasing automatic reset air shaft anti-explosion cover is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of coal mine ventilation safety, in particular to the structure of an explosion-proof cover. Background technique [0002] At present, gas explosion, as the number one killer of coal mine safety, has caused huge loss of personnel and property to the country and society. After the gas explosion, due to the severe deformation of the mine explosion-proof cover or the high-pressure throw, the underground air flow and the ground air short-circuit, and the toxic gases such as CO cannot be effectively discharged, causing a large number of casualties. In addition, due to the needs of underground rescue, it is often necessary to reverse the wind in the mine, and at this time, because the explosion-proof cover is often not closed in time, it will cause a short circuit of the air flow, thereby affecting the underground rescue work. Therefore, after a gas explosion occurs, it is very important how to maximize the safet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/16
Inventor 何军陈伟王其龙朱建国周士凤
Owner YANGZHOU JIANGLONG MINING EQUIP
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