Coal resources are widely used, from coal-fired power plants to lighting fires at home to keep warm. They mainly use the combustion characteristics of coal resources to generate energy. Coal resources are mainly buried in the crust thousands of meters underground, and after countless years, they have changed from trees to coal and other resources. People use it in various ways. This paper mainly talks about the solution of coal quality problems in the process of coal resource exploitation.

Coal quality; Coal quality management; management measure

1. Specific measures to strengthen coal quality management

1. 1 Improve quality awareness

For large coal enterprises, the annual output of coal is very large, and for the long-term development of enterprises, coal quality work must be done well. Through various media, publicity and other forms, employees of enterprises can deeply understand the importance of coal quality to the competition and development of enterprises, strengthen the training and education of employees' quality awareness, and make employees always remember coal quality awareness in the process of mining, production, inspection and inspection, which can greatly avoid the phenomenon of poor coal quality.

1.2 Improve the coal quality system

Enterprises constantly reform and improve all aspects of the system. Enterprises can set up an independent department, which is mainly responsible for handling coal quality incidents; Improve the specific systems such as sampling, inspection, warehousing and warehousing to avoid loopholes in the coal quality system and cause coal quality problems. At the same time, the management system related to coal quality and the treatment of problem coal should be formulated.

1.3 Strengthening coal quality assessment

In order to promote the development of enterprises and ensure the quality of coal, enterprises should strengthen the assessment of coal quality problems. In the inspection and assessment, formulate specific reward and punishment measures, reward measures for excellent employees and punishment measures for uneducated employees. Strengthen supervision, standardize employees' production operation ability and correct theoretical knowledge, train employees regularly, and strengthen coal quality awareness and correct sampling and testing methods in the production process.

2. Strengthen coal quality pre-control, pay close attention to mine coal quality control.

2. 1 humidity control

First, improve the pumping and drainage system of the working face and pump out the accumulated water in time; Second, the cooling water in the coal machine tunnel should be pumped out in time, and the water spray should always be foggy; Third, the wet coal in the working face needs to be discharged before it can be put into the system; Fourthly, a water shield arch is arranged for each water curtain in the underground belt transport roadway; Fifth, maintain water supply and drainage pipelines regularly to prevent water leakage.

2.2 Ash control

In the process of mining, top cutting, bottom cutting and large-scale gangue leakage must be avoided. For coal seams with different quality, they should be mined, transported and stored separately. Remove the accumulated water and silt within 50 meters of the excavation passage in advance to prevent it from entering the transportation system during excavation. Recover and check the rock powder produced in the process of bolt connection.

2.3 Site management of coal quality in special period

For areas with poor geology, increased mining difficulty and increased mining risk coefficient, during the mining process, enterprises organize teams in advance, including manpower and material resources such as technology and equipment, to ensure that all kinds of unexpected accidents in the professional mining process of enterprises are minimized.

2.4 sundry control

Comprehensively clean up the sundries within 100 meters of the coal mining face, distribute the garbage bins purchased by enterprises to 10 factories, and place them in the places with the most garbage and sundries to slow down the phenomenon of garbage everywhere; Distribute a certain amount of iron remover to each plant and build a miscellaneous net around the coal preparation plant. The magazine network has a certain link effect; Formulate the relevant system of punishment for sundries and garbage, and stipulate the system of joint and several liability. No matter whether the sundries and garbage made by individuals or collectives cause damage to the production environment, the relevant leaders will accept the punishment in a unified way, which not only clarifies the specific responsibilities, but also improves the enthusiasm of employees for maintaining the environment.

3. Ground coal quality management

3. 1 coal washing management

Conduct technical training for coal preparation plant employees, improve their operation level, regularly test equipment, and strengthen equipment debugging and technical improvement. Wash out inferior coal as soon as possible, improve the coal washing rate, ensure the coal washing quality of clean coal and blended coal, and reach the minimum coal washing standard.

3.2 Coal Quality Department

The coal quality management department should deal with the coal quality problems seriously in strict accordance with the relevant regulations, and there is no negligence, otherwise it will cause serious consequences due to quality problems.

Coal quality inspectors go deep underground to fully supervise employees' mining work and ensure the quality of coal mining. Mining teams should pay attention to coal quality consciousness in the process of mining, which can improve the quality of coal production to a certain extent. Supervise the coal quality of underground mining all day to prevent large pieces of gangue from mixing with coal. If a large amount of gangue is found in coal, the mining team can be punished to achieve the preventive effect.

4. Strengthen the management of mining and processing.

Strengthening the management of mining and processing in enterprises can get the coal quality of production line in time and accurately, and guide production. By strengthening the business study and training of purchasing and manufacturing personnel, the technical quality of enterprise employees can be improved. By holding different technical competitions and selecting outstanding technical personnel to reward them, the participants can improve the technical level and quality of employees. Coal quality laboratory instruments and equipment should be maintained frequently to maintain their accuracy and performance, and technical measures should be taken to ensure the accuracy of laboratory data. Special attention should be paid in the test process, not only to calibrate the heat capacity of calorimeter regularly, but also to calibrate with standard coal regularly. When a problem occurs, find out the main factors of the problem in time, and take relevant measures to solve the problem to prevent the recurrence of the problem.

5. Improve the professional quality of laboratory personnel.

Coal quality inspection reflects the quality of quality management, and the quality management and operation effect of production, processing and sales can be judged through quality inspection. Coal quality inspection should not only evaluate the variety of coal, but also judge the value of products.

Coal quality management personnel must have reliable technology to avoid the phenomenon that coal quality is not up to standard due to technical failure. Improving the professional quality and professional level of mining personnel can be achieved through the following ways:

(1) Plan all the study arrangements and examination arrangements for the whole year at the beginning of each year. The abortion exam is once a month and the mid-season exam is once a quarter. Make the results of each exam public. (2) Conduct a comprehensive examination every six months to assess various abilities, especially in the accuracy of laboratory testing. Evaluate the evaluation results and send the evaluation results to the company website (3). At the end of the year, a large-scale examination competition will be held, and all purchasing and processing personnel of the enterprise will participate, and according to the final results, the employees with the highest scores will be rewarded. (4) Regularly invite experts from relevant national technologies to conduct employee training, so as to ensure that every employee holds relevant certificates and has excellent skills. (5) Regularly send relevant personnel to participate in the National Coal Inspection Training Center, return to the enterprise, and organize employees to study. (6) Formulate and improve the relevant operating norms and management systems for procurement and production, mobilize the enthusiasm of employees and ensure the quality of work.

6. Future direction of coal quality management

The development of coal quality management should be more professional and technical, and realize standardized management. Enterprises must have certain working experience when recruiting talents for coal quality management and inspection, and increase the post-training of employees to ensure that the technical level reaches the standard. Conduct centralized management training for coal quality management personnel to avoid uneven technology and require employees to exchange technical experience with each other. Instruments and equipment for coal quality management should be overhauled regularly, and technical improvements should be made continuously to make equipment production more efficient. Test the personnel related to coal quality, and assign and manage the personnel according to the test results.

7. Conclusion

Coal mining is a time-consuming and labor-intensive project, which requires a lot of financial resources and manpower to go deep into the crust. In order to make the mined coal achieve the maximum economic benefit, it is necessary to control the coal quality, ensure the purity of coal, and avoid the mixing of coal and gangue and other impurities. To ensure the purity of coal, it is necessary to supervise the underground mining work, which can not only ensure the quality of coal, but also ensure the coal output; The detection and test of coal in the well must be accurate. After the coal arrives at the coal preparation plant, the impurities in the coal should be screened out as much as possible to ensure the purity of the coal and its economic benefits. Coal must be classified by variety when it is put into storage, and mixed use must be avoided. When selling out of the warehouse, it is necessary to ensure the consistency between coal quality and customer requirements. Reputation is always the first step of enterprise development. Enterprises should strengthen the physical training of all kinds of internal talents (continued on page 409) (continued on page 372) and improve their technical level and quality, which is conducive to the long-term development of enterprises.

refer to

[1] Cheng Gong. Talking about how to do a good job in coal quality management in coal enterprises [J]. Daguan Weekly, 20 1 1(23).

[2] Hao Shuanyuan. Henan Coal Exploration Institute gives full play to its advantages to train coal quality testing talents for coal enterprises [J]. Resource Guide: Executive Comprehensive Edition, 20 1 1(8).

[3] Publication. On the Elements of Paper Writing [EB/OL] .2012 [2013-5-1].

[4] Zhang Weiyi, Gao Chunfang. Discussion on the way to improve the quality of coal products in coal enterprises [J]. Hebei Coal, 2004(3).