Principle of coal mining-crafts-technical chapter: detailed explanation of the relevant knowledge of coal mining technology and coal mining work surface of the long-wall working surface.Let me introduce it in detail below!
The characteristics of the coal mining process method
1. Features of artillery mining process: Workers have high labor intensity, unsafe support, low daily output and labor productivity, high material consumption, and strong adaptability;
2. Characteristics: Mechanized, increased production, and less equipment investment in coal mining work; the erection and retracement of brackets are still heavy labor, and it is still weak in terms of top board management.
3. Features of comprehensive mining: high yield, efficient, safe, low consumption.
4. The principle of choosing coal mining technology: as much as possible to use the high degree of mechanization, the method of coal mining; good work safety and good labor conditions; less coal loss, less material consumption, and low cost; less production accidents and convenient management.
Overview of coal mining working noodles
1. Concept of regular circulation operation of coal mining work surface: According to the production process of coal mining working surface, it is equipped with certain types of work and settlement, completes the established tasks according to the quality, quantity, and safely within the prescribed time, and ensure that the weekly reunion, no, no, notMethods of coal mining intermittently.
2. Standards for regular circulation operations of coal mining work surface ① There is a scientific and practical operating procedure and cycle chart to complete the prescribed regular cycle rate.② Complete the yield, progress, efficiency, coal quality, main material consumption, and working surface coal collection rate specified in the operating regulations.③ The quality of the work surface engineering is qualified, the intact rate of electromechanical equipment is not less than 80%, and the accident rate does not exceed 2%.④ Safety production, eliminating death and major accidents.
3. The actual number of regular cycles in the regular cycle rate in the middle month -is the statistical number of accumulated statistics according to the requirements of the regular cycle standards, and the total number of ruler at the end of the month must not be used at the end of the month.The number of monthly working days -refers to the number of days of the days calendar minus the number of daily impacts due to external factors (such as holidays, mining maintenance, power outage, major transportation and impact of accidents, etc.).The number of discontinued days caused by the impact of the work surface itself is still calculated based on the number of working days.
Requirements: The coal mining working surface is based on the geological conditions of the coal seam, mechanical and equipment conditions, etc. The regular cycle rate is 80% ~ 90%, and the condition is 70% to 80%.
Overview of coal mining technology
1. Overview of the coal mining process of long wall working noodles, including: long -wall coal mining method, long wall coal -wearing working surface, coal mining technology, and the characteristics of coal mining technology methods;
2. Regular circulation operations of coal mining work surface, including: circular operation, circulation method, operation form, process arrangement, labor organization, circular chart, comprehensive mining work face process design examples of coal mining work surface;
3. Coal recovery operation regulations and safety technical measures, including: preparation of coal mining working noodles operating procedures, preparation of safety technical measures under special conditions;

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