The gas level in a mine is classified based on the relative and absolute outburst rates of the mine. Gas, a colorless and odorless gas, poses a huge danger in the process of coal mining. How to scientifically understand and prevent gas is the key to ensuring safe production in mines. Today, let's learn about the classification of mine gas levels and how to use modern technology to achieve safe and efficient production in coal mines.

According to the Coal Mine Safety Regulations, the gas levels in mines are divided into four levels:

Low gas mine: The relative gas emission of the mine is less than or equal to 10 cubic meters per ton, and the absolute gas emission of the mine is less than or equal to 40 cubic meters per minute.

High gas mine: The relative gas emission of the mine is greater than 10 cubic meters per ton, or the absolute gas emission of the mine is greater than 40 cubic meters per minute.

Coal (rock) and gas (carbon dioxide) outburst mine: A mine where coal (rock) and gas (carbon dioxide) suddenly erupt during the mining process, posing a serious threat.

Special type mines: The gas emission rate of these mines may not be large, but due to complex geological conditions, gas control is difficult.

Gas control is of utmost importance for coal mine safety production. Reasonable classification of gas levels helps coal mining enterprises take targeted prevention and control measures to reduce the risk of gas accidents.

The Application of Modern Technology in Gas Control

Gas monitoring system: By installing gas monitoring sensors, the gas concentration in the mine is monitored in real time. Once the concentration exceeds the standard, the system will immediately sound an alarm to ensure the safety of miners.

Gas extraction technology: using surface drilling or underground drilling methods to extract gas from coal seams in advance, reduce mine gas pressure, and prevent gas accidents from occurring.

Gas utilization technology: Purifying extracted gas and converting it into usable energy not only reduces environmental pollution but also improves resource utilization efficiency.

By introducing gas monitoring systems and gas extraction technology, a high gas mine can be transformed into a low gas mine, which not only greatly improves production safety, but also realizes the resource utilization of gas, bringing a win-win situation of economic and environmental benefits to the enterprise.

The accurate classification of mine gas levels is an important basis for coal mine safety production. With the help of modern technology, coal mining enterprises can more effectively carry out gas control, achieving a double harvest of safety production and resource utilization. Let us join hands with technology to safeguard the safety of mines and build a strong safety defense line for coal miners. Remember, safety production is not only a responsibility, but also a respect for life.