Chapter 88 Gas explosion: Is it "incidental combustion" or "must combustion"?

Over the years, gas has always been the "culprit" of coal mine accidents that has caused headaches for governments of various countries. In western developed countries, coal mine gas explosion accidents have been accompanied by the industrial revolution. Since then, most industrialized countries have been conducting various experimental researches on coal mine gas explosions. However, until today, preventing mine gas explosions in mining areas is still a worldwide problem. Scientific common sense tells us that gas is an organic gas whose main component is methane (CH4). It will explode immediately when it encounters a fire source. This is an objective phenomenon.

Human beings may be powerless in the face of the powerful "tile governance" project.But from another perspective, in terms of avoiding the "frontal conflict" with gas, we human beings have the endless "four or two" wisdom to "overcome" it. Experts pointed out that according to the current strength of human beings, as long as the principle of "pumping (gas) first and then mining (coal)" is adhered to, the occurrence of accidents can be greatly reduced. This is exactly what we want to achieve. However, in some coal mines where production management is chaotic and security measures are not in place, gas explosion accidents are not simply "incidental combustion", but de facto "must-ignite"!

It is said that it must be burned. On the one hand, it mainly refers to the lack of capital investment, safety technology and specific measures in the prevention of gas in some coal mines, and the safety foundation is weak.This objectively leads to the "must burn" of gas. For example, in the early 1980s, my country's coal market was sluggish, and coal mining enterprises were very difficult to operate. Most coal mines that were eager to make a living were not very "enthusiastic" in terms of safety investment. In actual work, safety often "give way" to coal production unconditionally. , which led to "seriously insufficient investment in security and too much debt".

Here, "seriously insufficient, too much debt" means that some mines have no ability to develop return air tunnels even when the new mining area is extended.This phenomenon is especially common in some small coal mines. Generally, when the excavation under the pit needs to excavate the working face of the side roadway on the large roadway, the coal boss will often spend money to hire someone to dig a road on the ground that is connected with the coal mining face under the pit. The channel connecting the lanes is the "tuyere".If this is not done, under the conditions that it is difficult to form a "return air system" at the production site of the mining face under the pit, once it encounters gas, the disaster of "must burn" will occur.

In this case, the contradiction between coal production and "outburst prevention" work is very prominent, and the implementation of "outburst prevention" technical measures does not have enough time for pumping (discharging) and releasing gas. "Insufficient strength, it is difficult to achieve the coordinated development of "pumping, digging, mining". It is said that it must be burned. On the other hand, due to the influence of the market, the safety awareness of coal mines in some places is not strong. Supercapacity to organize production and surprise production due to the restriction of the environment, posing a major threat to safe production.

It is said that it is "must burn", and the government's safety supervision is not in place, which is also one of the causes of the accident. The failure of the relevant government departments to fulfill their duties in the actual work of coal mine safety supervision "inaction" in the production process is the key factor in preventing mine gas explosion accidents. So many "must burn" and "burn" together, is there any reason why gas should not "burn"?