In the depths of the mountains of Qianwei County, Leshan City, Sichuan Province, there is a "hard core" coal mine - Jiayang Coal Mine, as one of the four major anti-Japanese war coal mines, Jiayang Coal Mine has a history of more than 80 years, and the vast coal mines in the north are different, Jiayang Coal Mine is steep and vibrant, and still produces more than 1 million tons of coal every year.
Loading...
From the 30s to the 80s of the last century, tens of millions of tons of coal were mined in Jiayang Coal Mine, and the Bashi Railway was built to transport coal through small trains, which delivered a lot of valuable energy for the socialist construction in the early days of the founding of New China. At present, the Jiayang train is the only passenger narrow-gauge steam train in the world that is still in operation.
Jiayang Coal Mine is affiliated to Sichuan Jiayang Group Co., Ltd. (hereinafter referred to as "Jiayang Group"), and in recent years, Jiayang Group has long protected resources such as steam trains and old mines, and established a mine cultural park with Jiayang characteristics. Every year in March, the rape flowers are in full bloom, the mountains are golden, the valleys echo with a long whistle, the Jiayang train, through the slender track, sail to the rape flowers spread over the mountains, is called "the little train to spring".
Nowadays, the Jiayang Coal Mine has been transferred to the Tianxijing New Mining Area next to the Jiayang Small Train Departure Station to take over the mining. A digital and intelligent revolution jointly created by coal mines and the ICT industry is quietly unfolding here.
The mine is like a tiny "underground city", with staggered roadways and complex environment, and traditional coal mines are facing development pressures such as safety hazards, low efficiency, and environmental pollution. As the traditional main energy source in the mainland, the coal industry is in urgent need of transformation.
Jiayang Group, together with China Telecom Sichuan Company, Chongqing Research Institute of China Coal Science and Industry Group (hereinafter referred to as "Chongqing Research Institute") and ZTE, took the lead in carrying out digital and intelligent upgrading of mines in Sichuan Province.
Based on 5G, network coverage is optimized
In today's digital economy era, 5G network has become an indispensable infrastructure, and 5G has the advantages of high speed, low latency, and large capacity, which can provide strong network technical support for intelligent applications in coal mines.
Most of the coal mines in the south are thin-bed coal, with complex geological conditions, thin coal seams and narrower roadways. In narrow aisles, traditional networks are difficult to expand and have limited data transmission capabilities, making communication and transmission more difficult. Jiayang Coal Mine mainly relies on 2.4G Wi-Fi built by Chongqing Research Institute in 2010, but due to aging equipment and bandwidth limitations, it can no longer meet the needs of telephone and video transmission within the coal mine, and it is urgent to improve the transmission of the mine network.
In order to solve this problem, Sichuan Jiayang Group, together with China Telecom Sichuan Company, Chongqing Research Institute and ZTE, has formulated a 5G+ intelligent mine construction plan to help Jiayang Coal Mine build a local 5G private network core network.
After fully considering the problems of narrow underground roadways and difficult network transmission in the southern coal mine, a base station is set up every 300 meters underground in the Jiayang Coal Mine, which means that there will be a 5G base station node within 150 meters of any location underground. According to Dan Tong, deputy chief engineer of Jiayang Coal Mine Informatization, the current 5G network deployment meets the wireless networking needs of a variety of underground equipment, ensuring that underground operators can access the network within 150 meters at any location, and seamless transmission can be achieved above and below the mine, which greatly improves the intelligent level and work efficiency of the coal mine.
Relying on 5G network technology, it realizes full coverage of underground high-speed network and full connection of underground equipment, which solves the network requirements of Jiayang Coal Mine's digital and intelligent transformation. Fan Qinying, general manager of Jiayang Group, said that in recent years, the Tianxi Shaft of Jiayang Coal Mine has successively carried out intelligent transformation of coal mining and excavation faces, effectively promoting the intelligent mining of the whole mine and the construction of intrinsically safe mines. In the 2023 National Coal Mine Coal Mining Face Intelligent Innovation Competition, the 31231 working face of Tianxijing in Jiayang Coal Mine won the special grade of the thin coal seam intelligent fully mechanized mining track, helping to create a new model for the intelligent transformation of thin bed coal in southern China.
For the intelligent transformation of coal mines, the construction of 5G private network is only the beginning, which provides a solid network guarantee for the construction of safe and efficient intelligent mines.
Build a safe and efficient intelligent mine
Coal is a high-risk industry, and safe production has always been the top priority. Fan Qinying, general manager of Sichuan Jiayang Group, has also been emphasizing that safety is the greatest benefit of the coal mining industry, and improving the safety production level of coal mines has been put in the first place on the road of digital and intelligent transformation of Jiayang coal mine.
Liu Cheng, general manager of Chongqing Research Institute, talked about the value of 5G in the field of coal mine safety, saying that 5G technology can be used to build intelligent mines, realize the digitalization of mining environment, intelligent technology and equipment, visualization of production process, information transmission network, production management and decision-making autonomy, and improve the safety production level of coal mines.
In complex and changeable mines, the satellite positioning system in the past often cannot accurately locate the real-time location of mine personnel, and the information of personnel positioning is large and updated frequently, and when special circumstances occur, it is impossible to accurately obtain the personnel situation in each area. With the help of 5G technology low-latency communication and massive data backhaul, Jiayang Coal Mine and ZTE have developed an intelligent personnel positioning system, which can accurately locate underground workers, with a static target accuracy of decimeter level and a dynamic target accuracy of meter level, which can observe the situation of underground workers in real time and ensure the safety of underground workers.
Many years ago, the movement of locomotives and equipment in the mine relied on the method of carrying and dragging on people's shoulders. Now, after the deployment of 5G, drilling rigs and other equipment, even in dim and narrow roadways, can automatically walk, and after reaching the set position, they can automatically adjust their attitude to rotate, and the workers can also operate coal mining on the ground, freeing more coal mine workers from dangerous environments.
In order to improve the safety of the mine, the underground operation site of Jiayang Coal Mine is equipped with high-definition cameras, with the capture function of potential safety hazards and illegal operations, and uses key technologies such as 5G large bandwidth, low latency, rapid detection, precise positioning, and multi-modal recognition to realize the intelligent image identification and alarm linkage of people, equipment, and environmental unsafe factors in the production process of Jiayang Coal Mine, which solves the problem of intelligent identification of potential safety hazards in coal mines, and realizes the underground less manpower and unmanned environment, so as to improve the safety production level and production efficiency of the mine.
Fan Qinying, general manager of Jiayang Group, said, "At present, the coal mining face and tunneling face of Jiayang Coal Mine have all realized intelligent production, and auxiliary production systems such as power supply, drainage, and transportation have all achieved intelligent, intelligent and ground control. Through mechanized staff reduction and intelligent computing, the number of workers in high-risk underground operations is reduced to achieve safe and efficient coal mining. ”
Remote control, improve efficiency and safety
With the support of a strong network, the intelligent mine control center can become a distribution center for various information and data. Nowadays, the intelligent equipment in the underground coal mine is concentrated in the ground control center, and the miners do not have to be trapped in the difficult underground environment, so they can wear suits and ties, and carry out remote control on the ground.
Jiayang Coal Mine Intelligent Fully Mechanized Mining Ground Centralized Control Center covers the video inspection of the whole working face, the video monitoring of the whole process of the shearer cable, the video of the automatic switching of the bracket video, the voice alarm of the fault of the monitoring center, etc., which realizes the transparent management of all objects on and below the mine, and at the same time, the safety production and operation of the enterprise have been effectively controlled.
Wang Hui, a technician of Jiayang Coal Mine, said that at present, the automatic follow-up rate of Jiayang Coal Mine working face has reached more than 95%, while the equipment failure has been significantly reduced, the maintenance time has decreased by 80% year-on-year, and the single-day production personnel have been reduced from the original 63 to the current 8 people, and the per capita work efficiency has reached 406 tons/work.
The deployment of 5G applications has helped the intelligent construction of Jiayang Coal Mine, helped improve the working environment of coal miners, reduced production safety risks, and improved per capita efficiency. Under the empowerment of digital intelligence, Jiayang Coal Mine is also like taking a small train, carrying the vitality of wisdom, and blooming beautifully in the mountains of Qianwei County, Leshan.
Work together to build a digital economy
Accelerating the intelligent construction of mines has become the only way for the high-quality development of the industry, and the transformation of Jiayang Coal Mine has also effectively promoted the digital upgrading of the local coal mining industry. ZTE witnessed and deeply participated in the exploration of digital and intelligent transformation of Jiayang Coal Mine.
Xiong Jibin, vice president of ZTE, mentioned that since 2021, ZTE has provided corresponding intelligent services for more than 200 mining enterprises across the country. As a road builder of the digital economy, ZTE will continue to promote the deep integration of 5G and other digital technologies with the coal mining industry, help realize the all-round expansion of intelligent applications in the whole coal mine system, and stimulate the unlimited potential of mine digital assets.
In the future, ZTE will use technological innovation and industrial innovation to stimulate the vitality of digital and real integration, work with industry partners to promote new quality productivity, and drive the high-quality development of the digital economy. #数字经济筑路者#