采煤工艺(外国英文资料).docVIP

采煤工艺(国外英文资料) The mining face 1 normal circulation job definition and significance: coal mining working face normal circulation homework is production process according to the coal mining face with a certain type of work and complement, within the prescribed time, quantity and security to complete the task and ensure the cycle uninterrupted method of coal mining operations. Meaning: the mining face normal circulation homework is reasonable production organization form, he can make the coal mining working face in each working procedure in time and space reasonable coordination, effective use of equipment, labor organization and allocate more reasonable, so that the face to achieve high yield, stable, efficient and low consumption. The regular circulation rate (%) is the actual completion of the regular cycle count in the month (the number of daily cycles per month of working day) Circular progress (L) definition: the loop schedule is the distance from the coal face to the completion of a cycle. Falling coal progress (b) definition: the distance of the working face from a coal forward. L = n * b The step distance is greater than the step distance Five long arm working face what kind of labor organization form and the advantages and disadvantages: (1) section assignment: advantage is that labor is balanced, can realize armed, facilitate the collocation of labor force and to develop a pluripotent, worker familiar with the situation where I work, is helpful to safety. The disadvantage is that local changes occur. The increase of the amount of labor in this section may affect the progress of coal mining. (2) after operation, the advantage is that the work of a single, easy to implement work post responsibility system, work efficiency is high, the disadvantage is that the division of carefully, tension and intensity of labor, when working with machine could slowdown when coal winning machine and feed back. So busy spare inequality (3) subsection relay back to machine opera