Qilu Evening News Qilu One-point reporter Ji Shenghui Guo Jixuan Correspondent Wang Hui Jiao Chao Ding Ning
January 25, Northern Minor Year. Located in the west of Zoucheng, Shandong Energy Yankuang Energy Baodian Coal Mine is quiet and peaceful, and the road in the mining area is lined with festive red lanterns, coupled with the smiles on everyone's face, indicating the steady development of this mine.
Baodian Coal Mine regards intelligent construction as a key measure to improve the level of mine safety production guarantee, adheres to the principle of "practical, practical and practical", with the help of cloud data platform, 10 Gigabit industrial ring network, mine 5G network, big data and other advanced technologies, deeply integrates intelligent coal mining, excavation, electromechanical, transportation, monitoring and monitoring and other major systems, and builds three intelligent comprehensive release work surfaces of 7302, 7304 and 8302 with high standards, reaching the level of "domestic first-class and world-leading". The wave after wave of dividends brought by the development of the mine has brought deep feelings to every Baodian person: the labor intensity is smaller, the safety is more secure, and the income continues to rise...
Unmanned intelligent mining
Build the strongest brain
"8302 working surface, I am the ground centralized control center. Is there now a remote boot condition? ”
"The site already has the conditions to start up, and it can be authorized to start up remotely."
As the staff of the ground dispatching information center pressed the start button, the entire comprehensive mining unit of the 8302 intelligent comprehensive discharge work surface was immediately started, and the rumbling machine sound broke the eternal silence in the depths of the formation.
Qilu Evening News Qilu One-Point reporter saw on the huge electronic display screen of the Baodian Coal Mine Ground Intelligent Centralized Control Center that the coal mining equipment of the working surface at a depth of more than 400 meters underground automatically runs, cutting coal, moving frames, pushing and slipping, putting coal, transporting coal, everything is orderly, and the rolling "Ujin" is like flowing water "running" to the ground.
Intelligent mining, the future of coal enterprise transformation. In the past, factors such as restricted technology and signal transmission were very easy to cause danger. 5G technology with low latency, high network speed and high reliability solves this pain point. Since 2018, Shandong Energy Group has invested hundreds of millions of yuan to set up a research and development team to tackle 5G technology for mining, and our province has also come up with special financial support. In August 2020, the company obtained the "safety mark certificate" of the mining 5G system. In October of that year, the world's first highly reliable 5G private network system for mining was operated in Baodian Coal Mine.
"The original delay was about 2 to 3 seconds, and after using 5G, it should be around 25 milliseconds." Liang Qingpeng, technical director of Baodian Coal Mine Dispatching Information Center, introduced that on the intelligent comprehensive release work surface, there are more than 50 high-definition cameras and more than 1,000 sensors, and using this 5G private network system, information such as on-site screen, pressure, temperature and so on can be transmitted to the ground control center in real time.
Baodian Coal Mine coal mining face deploys 4 mining 5G base stations, and forms a ring link between each two mining 5G base stations and mine 5G base station controllers, of which two base stations with the same location are deployed according to the different frequencies, and the mining edge computing controller is deployed to achieve local service data diversion, reduce data transmission delay, and improve system networking reliability.
"With the help of the 5G private network, relying on the strongest brain, the staff can remotely control the coal mining equipment of hundreds of meters underground on the ground platform to achieve intelligent mining." Liang Qingpeng said.
Positioning accuracy of 0.3 meters
Safety is more secure
In the Baodian coal mine lamphouse, the employees who are about to go down the well need to brush their faces through the "portable instrument intelligent management system" to quickly obtain their own downhole equipment. Qilu Evening News Qilu one-point reporter saw that this set of "portable instrument intelligent management system" is composed of lockers, workers only need to find their own cabinets, through brushing face, card and other ways to open the box, quickly get the equipment down the well.
"Now with the mine lamp and the self-rescue device, there is no need to queue, saving a lot of time." Luo Jianying, deputy director of Baodian Coal Mine, said that relying on the intelligent park system, employees can realize attendance, meals, entry and exit of the mine, and receive mining equipment by brushing their faces.
How to ensure the safety of workers and achieve accurate positioning of personnel under the mine? Guo Ying, director of Baodian Coal Mine, introduced that the personnel accurate positioning system applies UWB technology, the positioning accuracy is up to 0.3 meters, and the number of underground personnel, the working area and the walking trajectory are queried in real time; the safety monitoring system applies integrated substations, new power supplies, laser methane sensors and other equipment, which can monitor the concentration of harmful gases, environmental parameters and the operating status of mechanical and electrical equipment in real time.
Through the locator on each person, the monitoring center can monitor all the situations underground in real time, how many people are in the underground waiting room, how many people are working in each work surface, and even which units these people belong to and what their names are clearly displayed on the LED display of real-time monitoring.
Liang Qingpeng told the Qilu Evening News Qilu One Point reporter that in the mine roof accident drill on September 18 last year, Baodian Coal Mine used the emergency coordination command system, safety monitoring, accurate positioning of personnel, voice broadcasting and other multi-system link integration to quickly notify all personnel in the underground operation area, and the whole process took less than 3 minutes. Mine safety emergency support capabilities have been vividly demonstrated.
Equip intelligent upgrades
The wisdom mine is coming
"Equipment upgrade is the driving force leading intelligent mining, in order to make the smart mine show 'real kung fu', equipment upgrade this 'bull nose' must be firmly grasped." Faced with the new requirements for high-quality development of mines, Guo Ying said firmly. In accordance with the requirements of Shandong Energy Group to build a safe, green, intelligent and efficient "four-type" mine, Baodian Coal Mine formulated an intelligent mine construction implementation plan, selected the most advanced intelligent equipment at home and abroad, promoted the construction of digital mines in depth, and built a comprehensive information control system with comprehensive real-time perception, intensive integration and sharing, and efficient collaborative operation, intelligent centralized control center, 5G + 10 Gigabit ring network, etc., with high quality, creating a new intelligent production model of "automatic control as the mainstay, supplemented by manual intervention". The level of intelligent construction of various systems in the mine has been greatly improved.
"We are upgrading our equipment to achieve our goal of safety and efficiency." Xu Bin, deputy director of Baodian Coal Mine, said that the main mining areas of the mine have all realized a new mode of safe continuous and efficient transportation combining rubber wheelers + monorail cranes, and successfully created a "half-hour" working circle from personnel entering the well to the operation site; the application of automatic double-arm anchor drilling trucks has increased the support efficiency by more than 30%; the application of intelligent mining, the comprehensive release of work surface production personnel from 14 to 16 people per shift, reduced to 7 people now, reducing the number of labor by more than 50%.
Wang Yanming, 40, joined the Baodian Coal Mine in 2006 and is now the mayor of the second district of comprehensive mining. Speaking of the changes in the mine in recent years, he was deeply touched. "When I first joined the work, the labor intensity of the workers on the front line of coal mining was very high, and the nearly 200-kilogram single body bracket was carried by manpower, and it was really exhausting after a shift." Wang Yanming said frankly that with the intelligent upgrading of coal mines, workers only need to hold remote controls for inspection and inspection. Most of the time, mining equipment is running automatically. Only when there is an abnormal situation, it will intervene in the handling. The underground employees are far away from the working environment of high dust and poor circulation, get rid of the high intensity of manual labor, and also improve production capacity.
After graduating from Shandong University of Science and Technology with a master's degree in mining engineering in 2018, Peng Xiangchao entered Baodian Coal Mine Comprehensive Mining District II as a technician. "Now more and more advanced technologies are applied to the front line of underground mining, workers are changing from labor-oriented to technical, everyone's motivation is more sufficient, and the sense of gain and happiness is stronger." Peng Xiangchao said with a smile.
Implement innovation-driven
Enhance the development potential
On the west side of the Baodian Coal Mine office building, there is an inconspicuous blue building, which is affectionately known as the "cradle of the master".
This is the first "mass innovation, full staff innovation" base built in the coal system in April 2015. The base has 10 innovation studios of model workers (skill masters) at all levels, and each one is well-known in the industry. Among them, Zhou Pengyun Innovation Studio was rated as the first high-skilled talent innovation studio of Shandong Energy, and Wang Yan Innovation Studio was rated as Shandong Provincial Labor Model Innovation Studio and National Coal Industry Skill Master Innovation Studio.
Since its establishment, the base has completed more than 2,600 innovative and effective projects, creating considerable economic benefits. Among them, 22 scientific and technological achievements such as "Research and Application of Normalized Intelligent Mining of Comprehensive Discharge Automation Work Surface" have won the Provincial and Ministerial Level Scientific and Technological Progress Award and the Outstanding Achievement Award for Technological Innovation; 5 achievements such as "Research on Key Technologies and Equipment for Intelligent Prevention and Control of Mine Dust" have reached the international leading level; 14 achievements such as "Key Technologies and Applications of Continuous and Efficient Coal Continuous and Efficient Control of Large Section Roadways of Extra-Thick Coal Seams" have reached the international advanced level; and 117 patents have been authorized by the State Intellectual Property Office.
"High-end think tanks" empower intelligent construction. Baodian Coal Mine combines intelligent mining with the cultivation of innovative talents, and carefully selects 20 employees with skilled business skills and high comprehensive quality college degrees in the second district of comprehensive mining, and sets up a college student team. Since the establishment of the team, all members have pressurized themselves, and played a role as a young pioneer in the learning and popularization of professional knowledge from equipment assembly and commissioning to the installation of the automation system, operating principles, and daily maintenance, and burst out of the vigorous force in intelligent mining.
"The learning ability of each person in the college student team is very strong, and they take advantage of every opportunity to take the initiative to communicate with the technicians of the district team and break through the problems encountered in intelligent mining one by one, and this learning spirit effectively drives the atmosphere of catching up with the whole district and promotes the comprehensive application of intelligent mining." Wang Yanming, mayor of the second district of Baodian Coal Mine Comprehensive Mining, said.
Dare to be the first and dare to fight a hard battle, this young team took the lead in "operating" the test of automatic coal release and automatic cutting of triangular coal procedures. They give full play to the advantages of all-rounders and a specialty, starting from the operation of brackets, intelligent operation, maintenance and maintenance, etc., and undertake the experimental application and promotion of the new process in the intelligent comprehensive discharge working surface, so as to consolidate the foundation for the increasing maturity of intelligent mining technology in coal mines.
"In the journey of intelligent mine construction, only the starting point has no end." Guo Ying said that Baodian Coal Mine will continue to adhere to the direction of "high reliability and heavy equipment", implement the innovation-driven strategy, highlight equipment upgrading, process improvement and key technology research, accelerate the construction of "four-type" mines, and unswervingly build a "world-advanced, domestic first-class" smart mine.