Application

I. Ensuring Mine Safety

1. Reducing Gas Accumulation: During coal mining, substantial amounts of gas are released from coal seams and goaf areas. If gas accumulates to a certain level, exceeding safety standards, it can easily trigger gas explosions or coal and gas outbursts, posing a severe threat to mine safety. Therefore, continuous gas drainage effectively reduces gas concentrations and mitigates accumulation, thereby safeguarding mine safety.
2. Preventing Gas Overlimit: Gas drainage is a crucial measure to prevent gas overlimit and accumulation. By extracting gas in advance from coal seams and goaf areas, it maintains the gas concentration within the working face at a safe level, preventing safety incidents caused by gas overlimit.

II. Enhancing Coal Resource Utilization

Gas, as a clean energy source, possesses high utilization value. Through gas drainage, previously wasted gas resources during coal mining can be recovered and utilized for power generation, heating, and other sectors, thereby enhancing the comprehensive utilization rate of coal resources.

III. Reducing Environmental Pollution

The primary component of gas is methane, which has over 20 times the greenhouse effect of carbon dioxide. If large amounts of gas are directly emitted into the atmosphere, it will exacerbate global warming. However, by extracting and utilizing gas, significant reductions in greenhouse gas emissions can be achieved, which is of great significance for environmental protection.

IV. Complying with Regulatory Requirements

According to regulations such as the "Regulations on the Supervision of Coal Mine Safety" and the "Special Provisions of the State Council on Preventing Work Safety Accidents in Coal Mines," coal mining enterprises must adopt effective measures for gas drainage to ensure mine safety. Consequently, continuous gas drainage in coal mine underground operations is necessary to fulfill regulatory requirements.

V. Specific Drainage Methods

The primary methods for gas drainage in coal mine underground operations include mechanical exhaustion, borehole drainage, and water-sealed drainage. The specific method chosen depends on actual conditions and mining requirements. For instance, gas drainage from mining seams typically involves drilling into the coal seam, connecting the boreholes to dedicated pipelines, and extracting the gas to the surface using drainage equipment. In contrast, gas drainage from goaf areas involves drilling around the goaf area.

In summary, continuous gas drainage in coal mine underground operations is vital for ensuring mine safety, enhancing coal resource utilization, reducing environmental pollution, and complying with regulatory requirements. Through scientific and reasonable gas drainage methods and technical means, safe and efficient coal mining and sustainable development can be achieved.