Why do domestic coal mines always have mining disasters, and what are the causes?

First of all, the coal boss is most concerned about how much coal is produced, and safety is lucky, so the state closes small coal mines, and the general direction is correct.

Secondly, the average cultural quality of the miners themselves is too low, and most of the accidents can be said to be human errors, but after so many small coal mines have been closed, and so many advanced equipment have been installed, there are also accidents in large mines?

Because coal mining itself is a high-risk industry, if you think about hundreds of meters underground, with mountains on your head, and gas everywhere, in addition, compared with the United States and Australia, our geological conditions are more complex and the danger itself is greater.

We can send humans to the far reaches of space without being able to figure out hundreds of meters underground, and that's a technical problem. (Like the lovely friend upstairs who said to use a satellite locator, it's too humorous, I hope you can one day invent a satellite locator that can pass through a few hundred meters of rock, I thank you on behalf of all our miners).

There is also a fundamental reason is that China's development is too fast, energy consumption is growing rapidly, all coal mines are as fast as possible out of coal, speed is the most obstacle to coal mine safety, in principle, if there is enough time to pump out the gas first, down to the safety conditions below, gas accidents can be reduced by 99%, just like Shanxi water permeability accident, if you play sufficient water exploration holes as required, how can you suddenly be flooded by the old kiln water The whole roadway.

Therefore, the essence of the accident is because you are 1.3 billion, and you are anxious to need these resources, and you are forced out layer by layer.

China should have a mining disaster day to commemorate the mining worker who died in the mining disaster.

I think it's good to look at March 28 this year, and we remember this day every year.

One day, the leaders of a coal mine in North China went to a work area to inspect safety production, and tested the safety awareness of underground employees on the spot. A worker doesn't use his pen, he sits there motionless.

The leader asked the worker, "Why don't you write?" ”

The worker said, "I don't know how to read. ”

The leader wondered: "How can you do coal mining if you are illiterate?" ”

The worker asked rhetorically: "Do I still work in coal mines if I know the words?" ”

This is a true story told by a mine leader when a reporter from China Economic Weekly was interviewed by a large coal mining group. Perhaps, this is only one of the important factors that reveal the frequent occurrence of coal mine accidents in China.

Pursue efficiency, illegal production and construction.

Each miner is issued a satellite locator.

The main factors that lead to coal mine accidents are gas, water permeability, landslides and rocks falling from the top, as well as carbon monoxide poisoning in the dead corner of the mine that is not ventilated, and leakage of electric wires in the humid air.

Miners should be trained to work, have the level of identifying risk factors, and do not violate regulations or work with illness.

Miners are required to take out various insurances.

Opening a coal mine is like driving a car, dangerous industry, there are too many hidden dangers, first, the leadership must pay attention to it, and the upward and downward effects; Second, we must increase investment in safety and eliminate hidden dangers to the greatest extent; Third, we must improve the treatment and status of employees, and achieve self-esteem and self-love; Fourth, we must improve the quality level and safety awareness of employees, and have a strong sense of self-safety protection. It's too much...

Because the coal mines are all underground, it is not easy for personnel to escape in the first place in the event of a mining disaster, and the air underground is not enough. In addition, the mining accident can easily lead to suffocation and death.

Escape

After a disaster accident occurs in the underground coal mine: first of all, it is necessary to evacuate to the surface as soon as possible according to the disaster avoidance route (if the self-rescuer protection time is not enough to ensure that it reaches the surface, the ZX-120 self-rescuer can also be replaced at each mining site, refuge chamber or rescue cabin to go into the mine);

When the roadway is blocked or the person in distress cannot be safely evacuated to the ground due to other circumstances, he should enter the refuge chamber or rescue cabin to take refuge and wait for rescue.

Help yourself

Underground self-rescuer: It is divided into two types: filtered self-rescuer and oxygen-generating self-rescuer, and oxygen-generating self-rescuer is divided into two types, namely isolated chemical oxygen self-rescuer and isolated compressed oxygen self-rescuer. The self-rescuers currently used by our company are ZH-15 isolated chemical oxygen self-rescuers and ZYX-15 30 isolated compressed oxygen self-rescuers (the mining face is equipped with ZYX-120 self-rescuers).

The formation of the mining accident is mainly due to the black heart of the boss, who is unwilling to spend more money on safety measures for his own interests; In many cases, the air circulation in the mine is not smooth, resulting in the accumulation of gases and causing gas**; Some are mine collapses; Afterwards, the boss even buried the mine in order to prevent people from knowing about the unfortunate incident, so as to escape responsibility.

Mining accidents refer to accidents that occur in the mining process, which usually cause great danger, and at least thousands of people die in mining accidents in the world every year. Common mining disasters include: gas**, coal dust**, gas outburst, water penetration accidents, mine fires, roof collapses, etc.

Coal mine disasters are always the most difficult to avoid. Here we can only talk about the causes of general mining disasters. The common problems are lax management, insufficient security measures and facilities, and weak safety awareness, all of which are attributed to the word profit.

And each mining disaster has a very deep cause and its own peculiarities, and it is difficult to find the big and complete web page you are talking about. Typical: Fanzhi mining disaster (Liu Chang of China Youth Daily).

Large state-owned coal mines are large in scale, large in scope, many links, and employs many people, making it difficult to manage.

The world's largest coal mine PK China's largest coal mine, our gap is in the first

The world's largest coal mine, the Rochester Coal Mine

Located in the Powder River Basin of Wyoming, the Rochester Coal Mine is currently the world's largest mineable coal mine, an open-pit mine with more than 2.3 billion tons of coal and one of the largest coal fields in the world, owned by Peabody Energy.

The coal seam at the Rochester Coal Mine occupies meters in the surface layer of the rice field, which stretches for kilometers. The mine covers square kilometers, the size of Washington, D.C. Carbon reserves are about 3 billion tonnes and will take 25 to 30 years to extract.

The coal produced at the Rochester Coal Mine is known as the cleanest coal in the United States, with an average calorific average of 8,800 British thermal units per pound and less than sulfur.

The coal mine adopts the bucket shovel non-transportation dumping process and the single-bucket-truck workshop breaking process, relying on the large-scale and highly mechanized equipment to greatly improve labor production efficiency. Every day, about 21 trains laden with coal depart from the Rochester Coal Mine in Wyoming to 100 coal-fired power plants across the United States. Even the coal wagons parked at the Rochester Coal Mill can carry more than 440 tons.

The city is known as the "World Image Center" and "Flour City", and when it comes to spring, a hundred flowers bloom, so it has the reputation of "Flower City".

China's largest coal mine - Harwusu open-pit mine

The Harwusu open-pit coal mine is located in the east of Jungger Banner (Xuejiawan Town), Ordos City, Inner Mongolia Autonomous Region, which belongs to the border area of Shanxi, Shaanxi and Mongolia, and is adjacent to the completed Heidaigou open-pit coal mine in the north.

The recoverable raw coal reserves are 100 million tons, the average thickness of the coal seam is meters, the average stripping ratio of the whole mine is cubic meters per ton, and the design service life is 79 years. The raw coal reserves in the first mining area are 100 million tons, the average stripping ratio is cubic meters per ton, and the service life is 32 years.

The coal quality of Harwusu open-pit coal mine is medium ash, low sulfur, extra low phosphorus, high volatile, medium and high calorific value, and high ash melting point of long-flame coal, known as "green coal", is a high-quality power coal, and has broad market prospects.

The coal mine uses an open-pit mining process with single-bucket excavator tracking and single-bucket trucks and draglines dumping. Every day, a super-powerful transport team composed of the world's giant self-dumping heavy trucks gathers here, and this group of steel monsters, known as the "mine coolies", mine and run back and forth in the Ugin environment, creating great value.

The open-pit coal mine is located in the Ordos Plateau, which is one of the most serious areas of soil erosion in China, where the original surface ravines are vertical and horizontal, the vegetation is sparse, the wind erosion and desertification are extremely serious, and the natural environment is very harsh. Open-pit coal mines have been developed and greened at the same time as the capital construction.

Mining accidents can be devastating to mines. It seriously threatens the lives of miners.

China is a major coal-producing country, a country that relies heavily on coal energy, and a major mining disaster. Man-made causes such as coal mining, production errors, aging and malfunctioning equipment are the main causes of mining disasters. The various mining accidents show that solving these problems requires the unified coordination of departments at all levels.

Only by continuously strengthening the management of mining can we effectively reduce the occurrence of mining accidents.