Lift the coal mine, maybe your mind will be such a scene: coal miners in monotonous work from the ground a few hundred meters underground, tired, bitter, do not say dirty, most importantly, will always face the risk of gas explosions, flooding, Mine disaster...
If the coal mine and the neural network, the memory coal cutting, the one-click start and stop words are linked, do you still feel "tired and dirty"? The reporter takes you into a subversive "smart mine" in Ningxia to see one. See how modern mines can be automated.
Now, the application of new technologies is changing the development model of traditional coal mines. Wuzhong City is located in Salt Lake County, Ningxia Phoenix gold mine, mine is one of the main modern benchmark Shenhua Ningxia Coal Industry Group, as well as coal mine safety standardization at the national level, the annual design capacity of 4 million tons. As a pilot unit for Shenhua Group to build clean and efficient mines, in recent years, Jinfeng Coal Mine has been exploring how to use “big dataâ€, “internet+†and “informatization†to achieve transformation and upgrading.
In Jinfeng Coal Mine, thin coal seams account for 34% of recoverable reserves, and the average mining thickness is less than 1.5 meters. It is difficult to mine underground.
“Because of the small mining space, the miners need to bend over the bow, squat down, and even crawl on the knees to operate the equipment. The labor intensity is very high.†Jin Zhijun, head of the Jinfeng Coal Mine, said that in order to achieve efficient mining of thin coal seams, After years of research and exploration, Jinfeng Coal Mine decided to introduce two technologies of automatic mining and flexible film concrete along the road, and officially applied in some thin coal seams in 2016.
It is understood that by establishing a set of automation control system based on the monitoring center as the core, video, Ethernet, audio, remote control, etc., Jinfeng Coal Mine realizes remote intervention control of the shearer at the working face, and the operator is in the control center. It can complete the start and stop work of the working surface pumping station, belt conveyor, transfer machine and other equipment.
As a frontier topic in the development of science and technology in the world's coal industry, automated mining technology can liberate employees from hard working conditions and high-intensity physical labor, maximizing the realization of “no one is safe, few people are safeâ€, so that the entire mine The operation is completed under the smart robot and smart device. This is also one of the specific contents of the "smart mine".
The automatic production mode of “real-time follow-up panoramic visualization + remote intervention control type†not only innovates, but also explores the production process of memory cutting coal and automatic heel movement suitable for thin coal seam mining, effectively solving the complex environment. The automatic control of the shearer and the labor intensive work of the personnel.
The construction of “smart mine†brought the gospel to the miners. The Jinfeng mine miner Deng Jianjun said: “After using a lot of automation equipment and new technology, we are much easier than before. We can take turns to take up jobs and have more rest time. Healthy body."
In the coal mine production process, the ratio of coal mining and excavation is directly related to the mining and connection problems, which in turn affects the normal and stable production of the mine. However, in the actual mining process, the two tend to deviate and it is difficult to maintain a balanced state. The technology of flexible film concrete along the goaf is an effective measure for Jinfeng Coal Mine to ease the production and tension. In the second half of this year, Jinfeng Coal Mine implemented the technology of “cutting top pressure relief and automatic lane forming†in a fully mechanized mining face. This can greatly reduce the cost of fully mechanized mining face excavation and greatly improve the resource recovery rate.
“In the past, the 30-meter coal pillars left in the two lanes of the coal mine face were often buried in the well, resulting in huge waste of resources. After the implementation of the new process, the machine can be reused without the need to retain coal pillars. This item can save more than 3 million yuan per year." Yuan Yuancheng, deputy mine manager of Jinfeng Coal Mine said.
Into the Jinfeng Coal Mine's general dispatch control room, you can see the underground production work scene on the electronic screen. But for Jinfeng Coal Mine, these are just the beginning stages of building a “smart mineâ€.
Chen Zhizhong said that after the completion of the "smart mine", the dispatching room will become the general control room for all kinds of production equipment, and mining, transportation and other work can be completed with one click. At that time, the whole mine will only retain one coal mining team to undertake the coal mining task, and the good wishes of “no one is safe, no one is safe†will be realized.
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