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Accessory device (pneumatic automatic air door) of mine main fan

A fan and damper technology, which is applied in the field of mine main fan attachment (pneumatic automatic damper), can solve the problems of easy failure, poor safety, waste of electric energy, etc., to prevent air leakage, safe and reliable operation, advanced technology and science Effect

Inactive Publication Date: 2009-12-30
郑克勤 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mine wind tunnel dampers and anti-wind dampers are drawn by electric or manual winches, which have disadvantages such as complicated operation, poor safety, prone to failure, large maintenance, serious air leakage of dampers, waste of electric energy, and freezing of dampers in winter

Method used

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  • Accessory device (pneumatic automatic air door) of mine main fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] 1. Fan rotation

[0010] (Fig. 1) Shown that type A fan is running, at this moment, the air damper of type A fan is opened automatically under the effect of wind pressure, and the pneumatic damper of type B fan is automatically closed under the effect of wind pressure. If it is necessary to switch from blower A to blower B, just cut off the power supply of blower A and start blower B immediately, so that the air damper of blower B acts on the entire damper due to the full pressure, and the damper opens quickly, and blower A The wind-operated damper of the typhoon will automatically close under the action of the wind pressure when the speed of the fan slows down and the wind pressure decreases to a certain value. This completes the rotation of the fan.

[0011] 2. Against the wind

[0012] Assuming that fan A is running, after receiving the notice of reverse wind, the driver of the main fan inserts the two bolts into the door opening hole of fan A and the door closing ...

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Abstract

The invention relates to a novel accessory device (pneumatic automatic air door) of a main fan. The pneumatic automatic air door does not need traction facility, and the opening and closing of the air door are realized automatically by air pressure generated by the fan. The pneumatic automatic air door can be put in a main air tunnel of a mine or on the ground during use. Therefore, the air door is a technological revolution.

Description

Technical field [0001] This device is used in conjunction with the main fan of the mine, and can be installed on the ground, between the collector of the main fan and the main exhaust tunnel of the mine, or can be directly installed in the main exhaust tunnel of the mine. It is a device that automatically opens and closes the damper completely by the wind pressure generated by the fan without any traction facilities. Background technique [0002] Previously, the main ventilator attachments of most mines have always followed the design of the former Soviet Union, which is the technology and equipment of the 1950s. Mine wind tunnel dampers and anti-wind dampers are pulled by electric or manual winches, which have disadvantages such as complex operation, poor safety, prone to failure, large maintenance, serious air leakage of dampers, waste of electric energy, and freezing of dampers in winter. Contents of the invention [0003] In order to overcome the shortcomings of tradi...

Claims

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Application Information

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IPC IPC(8): E21F1/10
Inventor 郑克勤郑向东齐翔何满
Owner 郑克勤