Intelligence becomes the key word of coal mine development

From manual operation to mechanized operation, from mechanization to intelligence, with the development of society, the coal industry has also undergone great changes. Recently, eight ministries and commissions, including the national development and Reform Commission and the national energy administration, jointly issued the guiding opinions on accelerating the intelligent development of coal mines (hereinafter referred to as the Guiding Opinions), which for the first time put forward specific objectives, main tasks and safeguard measures for the intelligent development of coal mines from the national level. Intelligent coal mine is the real demand and inevitable trend of the development of coal industry. Coal mine intellectualization is the core technical support for the high-quality development of coal industry, which has outstanding advantages in reducing personnel and improving efficiency, safety and environmental protection, etc.

Under the promotion of relevant government policies, coal enterprises have a high enthusiasm to participate in the intelligent construction of coal mines, and the development of intelligent coal mines in China has entered the fast lane. When the intelligent construction of coal mine stepped into the accelerated stage, the National Energy Administration interpreted the guiding opinions and pointed out that at present, local governments and coal enterprises attach great importance to the high-quality development of the coal industry, and the level of automation and informatization of the industry is constantly improving. It also makes a beneficial attempt and exploration to improve the safety of coal mine through the intelligent construction, and has built a number of unmanned mining working faces Some provinces also issued guidance documents on the development of coal mine intelligence, which laid a certain foundation and created a good atmosphere for promoting the development of coal mine intelligence. In recent years, the relevant departments of the state vigorously promote the research, development and application of coal mine robots, and lead the construction of mechanization, automation, informatization and intelligence of coal mines.

On January 2, 2019, the State Administration of coal mine safety issued the catalogue of key research and development of coal mine robots, pointing out that the key research and development application of 5 categories and 38 types of coal mine robots are driving, mining, transportation, safety control and rescue. On July 7, 2019, the coal mine intelligent technology innovation alliance was established to solve the "neck sticking" problem of coal mine intelligent technology. The alliance is jointly initiated by China Coal Society and China Coal Science and engineering group, and established by 27 units including relevant enterprises, scientific research institutions and colleges and universities. In October 2019, the five enterprise standards of intelligent unmanned comprehensive mining working face prepared by Huangling mining company of Shaanxi coal group in cooperation with the coal mine intelligent mining technology innovation center of emergency management department and North China University of science and technology passed the review of the expert group, forming a complete set of technical standard system of intelligent unmanned comprehensive mining working face lane design, equipment selection, equipment installation, daily operation, etc., filling in The blank of intelligent unmanned mining face standard in domestic coal industry.

At present, more than 200 intelligent coal faces have been built in China. In addition, since 2019, the national energy administration, the National Coal Mine Safety Supervision Bureau and other government departments, Shanxi, Henan, Shandong, Guizhou and other provinces, Yankuang, Pingmei and other key coal enterprises have issued relevant policies to vigorously promote the intelligent construction of coal mines. Recently, Xinda securities issued a report that from the promulgation of top-level design to the promulgation of detailed implementation rules, to the collaborative efforts of standard formulation and scientific research and innovation, the cooperation of coal enterprises, universities and technology companies shows that the central government, key provinces, coal and technology industries attach great importance to the intelligent coal mining, and the promotion is very strong. Although some coal mines are carrying out the intelligent construction work, there are some problems such as the lag of basic theory research and development, the imperfection of technical standards and specifications, the insufficient support of platform, the insufficient support of technical equipment, and the lack of high-end talents. The intelligent construction of coal mines in China is still in the primary stage. "In terms of revenue, at present, intellectualization will not significantly increase the short-term cost of the enterprise, and the cost will be reduced in the long run.

In addition, intelligence directly brings about the improvement of production efficiency. What's more, fewer people in the mine will be safe. Safety is a bigger thing, which is the best social benefit. " Wang Liugen, deputy general manager of information technology company of China Pingmei Shenma Group, suggested that coal enterprises must have their own intelligent operation and maintenance team to achieve unified operation and maintenance. He believes that it is not an overnight task for professionals to meet the needs of intelligent transformation and upgrading. Coal enterprises need to train their teams in the construction of projects and master these technologies in learning. This is a process. Wang Jinjin, general manager of Ningxia Tiandi Benniu company, said that the internal driving force of coal enterprises is mainly reflected in four aspects: first, intelligence can promote the continuous improvement of coal mine safety guarantee capacity; Second, the intelligent construction can reduce the equipment failure shutdown rate, such as the ability of highly automatic mining, self-determination and proactive fault diagnosis in advance, which can greatly improve the reliability of equipment and the convenience of fault maintenance; third, the per capita work efficiency can be improved by means of mechanization, electrification and informatization; fourth, the recovery rate and resource utilization rate can be improved. Intelligent technologies such as adaptive perceptual control based on coal seam occurrence conditions will make coal mining more accurate and waste less resources.

According to the guiding opinions, by 2021, a variety of intelligent demonstration coal mines of different types and modes will be built, and an information transmission and automatic operation technology system for the main links of coal mine development design, geological support, production and safety will be preliminarily formed, which will basically reduce the number of people in the driving face and improve the efficiency, operate with few or no people in the comprehensive mining face, and fix the posts in the underground and open-pit coal mines Unattended and remote monitoring. Zhang Liang, chairman of Beijing Tiandi Mako Co., Ltd., said that there is still a gap between the current capacity of national intelligent working face suppliers and this requirement. "For coal enterprises, it is not to say that intelligent mining can be realized if intelligent systems are installed. Intelligent system needs technical support, equipment reliability guarantee, management level of managers and technical maintenance of operators and users. " Zhang Liang believes that for coal enterprises, it is not only necessary to make good use of technology, but also to strengthen organizational management and system application, so as to truly exert system efficiency.