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Underground coal mine emergency avoiding and fresh air system

An emergency avoidance and fresh air system technology, which is applied in mine/tunnel ventilation, air-conditioning systems, mining equipment, etc., can solve the problem that the refuge chamber is far away from the working place of the staff, and it is difficult for all personnel to enter the emergency escape chamber in time The problems such as the increase in the probability of illness of the staff in the chamber and underground are achieved, and the splicing is convenient and fast, the sealing is good, and the bearing capacity is strong.

Inactive Publication Date: 2018-10-12
河北新阳工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a long distance between the existing chambers, and the distance between the refuge chamber and the staff's work place is sometimes far away. If an emergency disaster occurs, it is difficult for all personnel to enter the emergency refuge chamber in time.
In addition, the existing underground working environment is poor, and the PM10 and PM2.5 in the underground mining face often explode, and the staff use dust masks to protect themselves. Masks, which greatly increase the chances of underground workers getting sick

Method used

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  • Underground coal mine emergency avoiding and fresh air system
  • Underground coal mine emergency avoiding and fresh air system
  • Underground coal mine emergency avoiding and fresh air system

Examples

Experimental program
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Effect test

Embodiment 1

[0026] see Figure 1~Figure 5 , the coal mine underground emergency escape and fresh air system of the present invention includes an emergency escape corridor 1 and a closed ladder room 2, the emergency escape corridor 1 is arranged in a pedestrian roadway, one end communicates with the closed ladder room 2, and the other end leads to The return air alley 4 is connected to the return air shaft 5; the emergency escape corridor 1 is a fully enclosed tubular shape on one side of the roadway, and its top is a flat or arched roof, which is made of anti-corrosion steel plates , and is supported and fixed by the steel support frame 1-2 arranged in the vertical direction. In case of emergency, harmful gas is prevented from entering the emergency escape corridor 1. The height is 1.6-2.2m; the steel support frame supports the entire emergency escape corridor 1 to ensure the firmness of the emergency escape corridor 1. The emergency escape corridor 1 is a multi-section docking connection...

Embodiment 2

[0028] see figure 1 , Figure 6~Figure 7 , the emergency escape corridor 1 is set in an elliptical cylindrical shape, and the entire emergency escape corridor has a greater bearing capacity to avoid accidental collapse and casualties; the support frame 1-2 is fixed in the emergency escape corridor 1 in a spiral shape On the inner wall, the helical support frame has a greater bearing capacity, making the emergency escape corridor 1 more stable; the length of the major axis in the vertical direction of the emergency escape corridor 1 is 1.6-2.2m, and the length of the minor axis in the horizontal direction is 0.8-1.2m , to ensure the normal entry and exit of personnel; the bottom of the emergency escape corridor 1 is provided with partitions 1-3, and personnel walk on the partitions 1-3, and the partitions 1-3 are evenly spaced with air outlets, and fresh air is provided by The closed ladder room 2 enters the passage below the partition, and then enters the passage above the pa...

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Abstract

The invention discloses an underground coal mine emergency avoiding and fresh air system. The emergency avoiding and fresh air system comprises an emergency corridor and an enclosed ladder room; the emergency corridor is arranged in a pedestrian tunnel, one end of the emergency corridor communicates with the enclosed ladder room, and the other end of the emergency corridor communicates with an airreturn main tunnel; the air return main tunnel communicates with an air return well; the emergency corridor is connected by a plurality of sections being connected in a butt-joint mode; the enclosedladder room is arranged on one side of an air inlet well; an air purification device is arranged at the inlet of the enclosed ladder room, and therefore air can enter the emergency corridor through negative pressure of mine ventilation after passing through the air purification device. The pedestrian emergency corridor arranged in the pedestrian tunnel can be used for emergency avoiding for workers and guarantee fresh air needed by the workers in working hours.

Description

technical field [0001] The invention relates to an emergency avoidance system, in particular to an emergency avoidance and fresh air system in underground coal mines. Background technique [0002] During the underground mining of coal mines, some harmful gases are inevitably produced and discharged into the air in the roadway, causing air pollution in the roadway, and there are dangers of disasters such as mine water, gas, coal seam spontaneous combustion, and coal dust explosion. Therefore, the National Safety Supervision Department requires all underground coal mines to set up underground safety avoidance systems and refuge chambers (cabins). Provide a closed living space for the staff who cannot evacuate the mine in time. However, there is a long distance between the existing chambers, and the distance between the refuge chamber and the staff's work place is sometimes far away. If an emergency disaster occurs, it is difficult for all personnel to enter the emergency refu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F11/00E21F1/00F24F3/16F24F13/28
CPCE21F1/00E21F11/00F24F13/28F24F8/10F24F8/108F24F8/158
Inventor 杨新兴杨昱
Owner 河北新阳工程技术有限公司
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