First of all, we should abandon the idea of paying more attention to output than quality, unify the thinking of the broad masses of workers into the general program of "quality, market, brand and benefit", firmly establish the quality concept and market concept of "quality is life and products are image", and constantly improve the coal quality assurance system and post quality responsibility system.

Secondly, establish and improve the product quality management and guarantee mechanism. Good management mechanism is the basis of effective implementation of total quality management. Under the guidance of the Group's Opinions on Further Strengthening Coal Quality Management, Measures for Quality Management of Coal Products (Trial) and Measures for Reward and Punishment of Coal Quality Assessment (Trial), the company should formulate a series of rules and regulations, such as the Measures for Quality Management of Coal Products and Detailed Rules for Coal Quality Assessment, which are applicable and operable in combination with the actual production of various mines, and establish and improve them. Establish a leading group for coal quality management, improve the coal quality management organization, and equip full-time coal quality management personnel, so that the system leaders are responsible for each other, and the network personnel have their own post quality responsibility system. At the same time, the accountability system for coal quality management, the traceability system for quality accidents and the one-vote veto system for major quality accidents have effectively improved the enthusiasm and work intensity of coal quality management and laid a good foundation for the company's coal quality management.

Then, strengthen the propaganda of the importance of coal quality management, correct the quality orientation, and change heteronomy into self-discipline in quality management. By enriching carriers, we highlight the themes of "quality is the life and economic benefits of enterprises" and "quality is the core competitiveness of enterprises, and quality is the reputation and image of enterprises". Often give employees a quality account, let employees realize the importance of quality, keep the quality theme in mind, and always remind themselves to do a good job in quality management.

At the same time, actively carry out quality analysis activities, leaders and departments at all levels go deep into grass-roots units and production lines to conduct on-site analysis of coal quality management, * * * find out the weak links in coal quality management, and let employees actively and consciously participate in it.

2. Grasp the hardware, strict procedures, and start from the source of production.

First, pay attention to coal quality prediction, take measures in advance to ensure coal quality and scientifically guide mine production. In order to realize scientific production and stabilize coal quality, the geological survey department is responsible for providing detailed and reliable geological description, predicting coal quality and putting forward coal quality assurance measures before the design of mining area and mining face. According to geological data, the design department makes reasonable arrangements, selects suitable horizons, completes supporting mining, and stabilizes coal quality by adjusting mining height of working face. The business department of mine geological survey shall, before the end of each month, provide the true profile related to coal quality, such as geological structure, gangue inclusion and hydrogeological conditions of the working face, and prepare the coal quality forecast report for next month to guide production. The company will hold a special analysis meeting on coal quality management at least once every quarter to study and solve the outstanding problems in coal quality management, and arrange the work for the next quarter to ensure the stability of coal quality.

Second, strict technical management measures should be taken. Coal quality management should be included in the necessary content of operation rules, and mining units must have targeted coal quality management measures when compiling production operation rules. It is clearly stipulated that the mining team must set up a coal quality management team, insist that the unit does not cut the roof and floor, strengthen the support management, ensure the support strength, and set up a full-time gangue picker in the working face. In order to improve the mine gangue discharge system, it is necessary to divide semi-coal rock excavation into excavation, sub-packaging and sub-transportation, and formulate targeted measures in special areas.

The third is to strengthen on-site management and start from the source of production links. The coal mining face should be operated in strict accordance with the operation procedures, and it is strictly forbidden to cross and leak gangue. Working face to formulate specific measures such as precipitation and ash reduction, strictly implement the provisions of the unit must stop water. According to the thickness, inclination and hardness of coal seam, and the position and hardness of stone-sandwiched layer, the reasonable drilling blasting parameters should be correctly selected in the blasting face to ensure that the roof, floor and stone-sandwiched layer are not broken and mixed with coal when the coal seam collapses, and the gangue should be picked before coal caving, and the stone-sandwiched layer in coal seam should be mined separately. Coal quality management of heading face and coal roadway excavation, and control the fully mechanized excavator not to pick the top or cut the bottom. When excavating semi-coal and rock, coal and rock should be blasted separately, loaded separately and transported separately. If it cannot be transported separately, a gangue adit should be built to store the gangue separately. Underground coal gangue and sundries are packed and transported separately to ensure coal quality. When the working face encounters special geological structures such as faults, the production technology department should optimize the coal mining technology and formulate detailed technical measures to improve the coal quality. Strengthen the management of raw coal transportation system, and it is forbidden to mix sundries and foreign water into the coal flow system. In the process of underground transportation and storage of coal, the gangue selected from coal quality management, coal mining face, gateway and transportation drift must be transported and promoted separately. The coal bunker at the bottom of the well shall be provided with iron grates as required, which shall be kept in good condition to avoid large pieces of gangue rising into the well. Strengthen the quality control of ex-factory coal, clean the carriage before loading, and make the last pass before loading.

The fourth is strict assessment, and the responsibility is implemented to people. In the measures for the quality management of coal products and the detailed rules for the assessment of coal quality, it is necessary to clarify the quality control indicators and the standards of rewards and punishments for quality assessment, clarify the quality management objectives and responsibilities of personnel at all levels, and incorporate the assessment of coal quality indicators into the scope of business assessment and link them with wages. At the same time, economic penalties will be imposed on units and unit leaders who violate the coal quality management system. The leading group of coal quality management organizes coal quality management personnel to inspect and assess each production link every month, honor coal quality reward and punishment measures, and earnestly implement the responsibility of coal quality management to people. Intensify on-site coal quality surprise inspection, implement three shifts of monitoring, ensure that supervision is in place, report problems in time and put forward rectification opinions, resolutely stop the behavior of units and individuals who do not implement coal quality management measures, and severely punish behaviors that seriously affect coal quality. If the problem cannot be solved on site, it should be rectified and tracked within a time limit.

Fifth, strengthen coal quality inspection and grasp product quality information in time. Every advance 100 m in the heading face, a coal seam sample must be taken. When geological changes occur in the working face, coal samples should be taken every 20-30 meters, coal quality sampling records and laboratory ledgers should be established, coal quality information should be fed back to the leading group of coal quality in time, coal quality should be reported at the daily production scheduling meeting, and coal quality management opinions should be put forward to realize timely feedback and implementation of coal quality information.