The black gangue content in the bulk gangue dropped 6% year-on-year; the full moisture of coal slurry dropped 10% year-on-year, and the calorific value increased by 500 calories; the ratio of final coal into the wash dropped 9% year-on-year....... This is the scorecard of Shandong Energy Group Northwestern Mining Tingnan Coal Company's washing and efficiency creation work in February. Since this year, Tingnan Coal Company aiming at the changing market demand, vigorously implement the coal strategy, through technological improvement, process control, intelligent washing and other ways, and gradually formed to block coal, coal, coal, coal and coal slurry as the core of the high-end product chain, and continue to amplify the "Ting Coal Wujin" brand advantage. The implementation of technological improvements to broaden product sales "The new improved set of crushing system will be crushed lump coal, part of the end of the coal products can be sold according to the profit is considerable." Talking about the lump coal crushing and coal distribution technology, Tingnan Coal Company coal washing coordination office deputy director Yang Donghong praised. In order to solve the problem of lump coal products lagging, broaden the market outlet, the company by the team members, deputy chief engineer and other members of the work team, set up under the coal washing coordination office, invested 5.8 million yuan to encourage the expert team, technical backbone to carry out research and ultimately succeeded in research and development of the lump coal crushing and coal preparation technology. The crushing system improved by the technology can crush the lump coal into small pieces of fine coal and end coal favoured by the market, so as to maximize the sales profit. Tingnan Coal Company has not only solved the problem of slow sale of lump coal products, but also expanded the sales of coal slurry products. After preliminary market research, the company invested 55.58 million yuan to introduce ultra-high-pressure coal sludgefilter presssystem, has installed four superHigh Sludge Filter PressThe equipment forms a "secondary filter press" coal slurry dewatering and quality improvement process. After initial dewatering by ultra-high-pressure filter press, it is transferred to high-pressure press pump for deep dewatering by "secondary filter press", and the final high-pressure coal cake is 10% lower than the total moisture of ordinary coal slurry, and the calorific value is increased 500 The final output of high-pressure coal cake is 10% lower than the total moisture of ordinary coal slurry, and the calorific value is 500 kcal higher. Production, washing and marketing co-operation, to ensure stable coal quality in the coal production, washing, transport, marketing links, how to ensure stable coal quality, quality standards? Tingnan Coal Company chooses to start from the source of governance, process control and other key aspects. The company set up a coal quality management leading group, under the coal quality characteristics research centre, fully responsible for coal washing and processing, quality inspection and product sales. At the same time, the company established a sound coal quality management assessment programme, detailed mining production units, coal preparation plant, coal yard and other responsibility areas and reward and punishment standards, held regular monthly coal quality analysis and coordination meetings, drawing underground coal quality engineering plan. In response to changes in underground geological conditions and factors affecting coal quality during the mining period, Tingnan Coal Company puts forward scientific and reasonable preventive measures to guide on-site production and ensure that one tonne of coal is produced, one tonne is qualified and one tonne is sold. Tingnan Coal Company has built a production, washing and marketing co-ordination mechanism. Once the coal quality of the mining face changes, the team leader needs to immediately report to the dispatching office, which will notify the coal preparation plant to adjust the washing parameters according to the situation to ensure the coal quality is stable. The coal yard should provide timely feedback on customer information, adjust the sales strategy with the Coal Washing Coordination Office and the Coal Preparation Plant, formulate the product plan, and make it possible to move according to the market and act according to the market. Application of advanced equipment, to create intelligent washing intelligent mine construction is Tingnan Coal Company has been committed to promoting the key work, intelligent washing, equipment upgrading is one of the important part. 20 March, in Tingnan Coal Company coal plant intelligent dry selection workshop, I saw the transport belt in the large gangue in the black gangue through the TDS intelligent dry selector, by the lower row of high-pressure nozzle precision screening blown into the chute, like a "shot". The same as "shooting". Tingnan Coal Company invested 8.95 million yuan to introduce the TDS intelligent dry selection system. The system is equipped with big data calculation and intelligent identification technology, using X-ray source to accurately identify the black gangue in the large gangue, so as to automatically sort and recover the black gangue, so that the black gangue content in the large gangue from 8% down to 2%, saving the gangue transport costs, and it is expected to generate an annual efficiency of 8.3 million yuan. In addition, Tingnan Coal Company increases the strength of cooperation between industry, academia and research, has with colleges and universities, scientific research institutes to carry out in-depth docking, around the centralised control of equipment, automatic data collection and unmanned post and other key aspects of scientific research. At the same time, the company vigorously introduced TCS coarse coal slurry intelligent sorting system, hydrocyclone fine automatic control and other intelligent washing equipment, the use of scientific and technological innovation, equipment upgrading continue to play the advantages of intelligent washing. "In the next step, we will take intelligent, automated and efficient 'three-chemical replacement' as the goal, and take raw coal quality, process efficiency and product value-added as the growth point, and make every effort to build an intensive intelligent coal selecting plant integrating supervision, management and control.