Recently, China's first set of maximum power downhole intelligent complete sets of equipment in too Heavy Coal Industrial Park test success, it marks China's "unmanned coal face" has taken an important step.

This project is one of the key projects of the country's "12th Five-Year Plan" for intelligent manufacturing and development. Equipment total weight of more than 10,000 tons, the project total investment of 440 million yuan, of which 100 million yuan state subsidies to be supported. Relevant ministries and commissions of the state, leaders of Shanxi Province, research and development units and major coal mine users attended the trial run.

The set of equipment will be set up in Shanxi Coking Coal Group Xishan Coal and Electricity (Group) Co., Ltd. built 10 million-ton safe and efficient demonstration of the work surface, to achieve shearer, hydraulic support and transportation system of intelligent control.

Unmanned coal is not a dream

The success of the trial run of the fully mechanized mining equipment has played a catalytic role in realizing fewer people and no one's intelligent mining. At the same time, the set of intelligent complete sets of equipment represents the development direction of the coal mining industry, enhance the overall level of China's coal machinery and equipment manufacturing industry, but also makes no one is no longer a dream of mining coal.

Coal equipment manufacturing industry is a strategic industry of China's coal industry and national economy, and is a key part of structural adjustment, optimization, upgrading and sustainable development of the coal industry. It is also a key factor and an important guarantee for building a new type of coal industry system.

At present, most of the world's coal mines are still in the stage of fully mechanized coal mining. Their automation and intelligence level are only used in some thin coal seams and have not been extensively used. In particular, the application of high-power intelligent complete-mechanized mining equipment is still limited.

The success of the intelligent fully mechanized coal preparation plant linkage trial is another breakthrough in the equipment manufacturing industry in China, which means that China has made staged achievements in the research and development of high-power fully mechanized mining intelligence and is another milestone in China's coal machinery manufacturing industry progress.

The coal mining machine can automatically complete the coal mining process required for a variety of coal mining processes and realize hydraulic support and scraper conveyor coordinated control, with a sound self-diagnosis, fault warning and communication functions. This set of equipment is too heavy coal machine, Pingyang Heavy Industry, Shanxi coal and other eight units, which lasted 15 months collaborative research, in 15 core intelligent research and development has made a breakthrough.

According to on-site command, the research and development and application of complete set of intelligent coal mine mechanization equipment have brought comprehensive promotion to coal mine production in terms of safety, efficiency and intensive energy conservation. Only from the number of operators, the minimum can be reduced by more than 50%, 4 to 5 people can operate the entire set of equipment, and improve the coal recovery rate.

Intelligent and efficient among the forefront

The biggest highlight of this fully mechanized mining equipment is: high level of intelligence and large-scale equipment. Shearer weighs 165 tons, installed power 2660 kilowatts, while achieving the matching large-scale hydraulic support, scraper conveyor and transport system of intelligent control.

Shearer intelligent system includes DSP as the core of the central module, through a variety of intelligent modules, coal rock identification can be achieved effectively, automatically adjust the height of the drum, the traction speed automatically adjust, and with the working state of shearer running current, Voltage, power and key parts of the shearer torque, speed, vibration, temperature and other signals online monitoring, diagnosis, early warning function, in case of unexpected problems can react within 0.001 seconds.

The set of intelligent fully mechanized mining complete sets of equipment, the shearer's traction speed can be based on coal mine work surface coal flow balance, to achieve independent traction speed regulation, and at the same time according to the thickness of the coal seam to achieve height adjustment of shearer to achieve effective Mining The entire coal mining operation by the computer studio, operating room can be located downhole or well. Compared with the previous underground man-made operation, each underground coal mining face can reduce the operating workers more than 80%.

Zhang Yong, chairman of China Coal Machinery Industry Association, said at the commissioning ceremony that "the realization of this project will not only enhance the intelligent level of China's fully mechanized mining and technical equipment, but also mark the intelligent level of China's fully mechanized mining equipment close to the international advanced level. With the development of China's coal machinery technology has entered a new stage, improving the efficiency and safety of coal production, and can directly promote the design of conventional products, manufacturing technology to improve for the use of enterprises and manufacturing enterprises bring good economic benefits. "

Innovative cooperation and development

Coal industry and coal industry are complementary upstream and downstream relations, the development of coal industry needs the coal industry, market support, and the revitalization and development of the coal industry is inseparable from the coal mining equipment manufacturing industry.

At present, China's coal equipment manufacturing industry has made great strides. The large-scale coal equipment has independent research and development capability. Its manufacturing technology and comprehensive strength have reached the world advanced level, and their international competitiveness has been further enhanced. Some of their products rank among the best in the world. Some aspects of mining equipment technology has reached the international advanced or leading level.

However, the overall level of China's coal equipment manufacturing capacity is low, the degree of intelligence is low, some large-scale equipment and key components are still dependent on imports and other issues remain outstanding. Meanwhile, since the beginning of this year, coal mining enterprises have entered a relatively difficult period as the price of coal has dropped, coupled with the decline of the heavy machinery industry and the reduction of orders. It is also an opportunity for enterprises to upgrade and upgrade.

Director of National Equipment and Information Service Department Wang Ruihua said in his speech: "As a leading player in the industry, we should continue to enhance our core competitiveness in the manufacturing industry by focusing on the building of a resource-saving and environment-friendly enterprise. Further market-oriented , Relying on resource integration, strengthen cooperation and cooperation with coal enterprises, accelerate scientific and technological innovation, play a leading role, as soon as possible to lead the equipment manufacturing industry as a new pillar industries.

Zhang Yong put forward three suggestions for the development of the coal machine enterprises: First, attention should be paid to the integration of informationization and industrialization so as to raise the intelligence level of coal equipment. Second, we must pay attention to the concept of modern green manufacturing and improve the remanufacturing capability of coal equipment. Third, we must focus on the combination of collectivization and specialization to promote the coordinated development of the coal equipment manufacturing industry.

With the development of reorganization and integration of coal enterprises, the establishment of safe and standardized mines, intelligent mining of machinery and efficient and intensive production, the demand for intelligent technology of coal machines will be more and more widened, broadening the field between coal enterprises and coal mining enterprises .

During the "Eleventh Five-year" period, the coal industry solved the "big" issue: the technology level of fully mechanized coal mining face has reached the international advanced level, and the stand-alone products of complete sets of equipment have reached the international advanced level. During the "12th Five-Year Plan" period, the industry will continue to solve the "good" issue, lead the development direction of coal machine manufacturing with intelligent technology, and achieve the new development of China's coal machine industry.

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