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Ventilation door for ground main ventilator of coal mine

A fan and damper technology, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc., can solve problems such as failures that cannot be eliminated, and achieve the effects of good sealing performance, easy elimination, and simple structure design.

Inactive Publication Date: 2015-03-25
SHANXI ANRUI FAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems existing in the existing damper that cannot be eliminated without stopping the machine when a fault occurs during operation, and to provide a damper for the main ventilator on the ground of a coal mine.

Method used

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  • Ventilation door for ground main ventilator of coal mine
  • Ventilation door for ground main ventilator of coal mine
  • Ventilation door for ground main ventilator of coal mine

Examples

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Embodiment Construction

[0013] Such as Figure 1~4 As shown, a damper for a coal mine ground main ventilator in this embodiment includes a roadway joint 1, a butterfly valve 2 and a first air cylinder 3, wherein: it also includes a side-opening damper 4 and a second air cylinder 5, so One end of the roadway joint 1 is connected to the air inlet of the ventilation duct 7, the other end of the roadway joint 1 is connected to the first air cylinder 3, the butterfly valve 2 is arranged between the roadway joint 1 and the first air cylinder 3, and the first air cylinder 3 The other end of the side-opening damper 4 is connected with the air outlet, and the air inlet of the side-opening damper 4 is connected with one end of the second air duct 5, and the other end of the second air duct 5 is connected with the air outlet of the blower fan 6.

[0014] The above-mentioned side-opening damper 4 includes a left door side 401, an upper cover 402 provided with an indicating device, an inner and outer door frame 4...

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Abstract

The invention belongs to the technical field of mining equipment, and particularly relates to a ventilation door for a ground main ventilator of a coal mine. The technical problem that a failure cannot be cleared without shutdown when a conventional ventilation door fails in a running process is mainly solved. According to the technical scheme, the ventilation door for the ground main ventilator of the coal mine comprises a roadway joint, a butterfly valve and a first air duct, as well as a side-opening ventilation door and a second air duct. The ventilation door has the advantages of capability of easily clearing the failure of the ventilation door without stopping blasting, simple structural design, rotating flexibility and high sealing performance.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, and in particular relates to a damper for a coal mine ground main ventilator. Background technique [0002] Coal mine main ventilator plays an important role in the safe production of coal mines. It is responsible for conveying fresh air underground, discharging dirty air and dust, and ensuring safe production. The National Coal Mine Safety Regulations require one main ventilator for each mine and one for standby. In order to facilitate the operation switching of the two fans, different types of dampers are installed between each fan and the wind tunnel for airtight switching. Present air door all is only installed a butterfly valve to do airtight switching, therefore, when the air door of its existence breaks down in the operation process, must stop the technical problem of main ventilator and just can get rid of failure. . Contents of the invention [0003] The purpose of the pres...

Claims

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Application Information

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IPC IPC(8): E21F1/10
CPCE21F1/10
Inventor 文军强叶丽霞杜文渊
Owner SHANXI ANRUI FAN ELECTRIC
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