Safety management measures for roof management during normal production of working face

Safety management measures for roof management during normal production of working face

I. Safety management measures for roof management during normal production of working face

Strictly implement the "three major regulations", continuously improve the quality of the roof support, ensure the safe and civilized production of the work surface, and manage the roof of the work surface, must be carried out according to the following requirements:

1. The end frame is moved in place in time, without lag, and the “one beam and three columns” column head is ligated reliably.

2. The pedestrian width of the advanced support section is not less than 0.7m and the height is not less than 1.8m.

3, advanced support without broken beam folding column, beam and column Qizheng, not stepping archery, no single beam and unloading column.

4, advanced support is intact, no air, empty top, leaking top phenomenon.

5, the end support advanced point column into a straight line, lifting the shed beam straight, column legs are positive, strong support, stigma ligature, shed, column spacing meet the requirements, to ensure the quality of support, to ensure the height and width of the roadway.

6. The end bracket pin shaft, crosshead, pushing cylinder, pipeline, control valve, etc. are intact, the connection is reliable, the bracket is pulled into place, the pipe is not squeezed, the top beam can not be bowed, and the floating coal under the frame is cleaned.

7. When the front support operation is carried out, it is strictly forbidden for others to walk in the section.

8, the front support back good top help, strictly prevent the top, the piece help and leaking and hurting people.

9. The leading pillars must be struck in the same vertical plane, the top beams are flat and the sheds are consistent.

10. The broken beam folding column must be replaced in time. It is strictly forbidden to use liquid leakage, unloading or damaged single column.

11. When the front support operation is carried out, the system of knocking the top is strictly enforced.

12, playing in the soft roof pillars, struts lace wood wood wear cap, setting load of not less than 5KN, iron wire lashing stud must avoid collapse post wounding.

13. All the single column supports are strong, and the column is dug to the solid bottom with a depth of not less than 0.1m.

14. When withdrawing the support pillars with a certain amount of hanging area, you must first lay the temporary support and then return to the column.

15. Strengthen the advance support during the turning point of the working face to prevent accidents.

16. Strictly implement the principle of first branch and then withdraw, and the specifications of the single column used in the same section of the roadway must be uniform.

17. Do not advance the pillars. When the pillars are unloaded, the personnel stand in a safe place and avoid the direction of the pillars.

18. When the column is returned, the column core should be collected. When the column is inserted deep into the bottom plate, the column is taken out and then returned. It is strictly forbidden to force the column back.

19. The end work on the work surface shall not be operated in parallel with the work production.

20. It is strictly forbidden to stand on the upper beam and top of the baffle of the transfer machine which is running in the transfer machine slot and uncovered.

21. Each class must make up the advanced pillars in time to ensure that the distance of the supporting pillars is not less than 40m.

22, when the transfer machine is running, it is not allowed to carry out the end work such as sheds and steel brackets.

23. It is necessary to promptly fill in the advanced point column that is removed when the transfer machine is removed.

24. When the end frame and the transfer machine are not moved, stop pulling and find out the reason. It is strictly forbidden to force the frame.

25. When working near the coal wall or on the front scraper conveyor, the knocking and topping system must be strictly implemented, and the front scraper should be reliably locked. The front probe beam should be extended in time and the top plate and coal gang can be opened. .

26, the brackets are straight and straight, the height is uniform, meet the requirements, not high and low, the top beam is parallel to the top plate, not leaning forward, the front beam is extended in time, the tail beam is raised, and the insert is properly extended to ensure The top vermiculite does not break into the rear scraper conveyor.

27. When someone is working on the side of the coal wall, the shearer and the front scraper conveyor must be locked and the top gang must be protected.

28. The coal mining machine cuts the lower surface of the working face. When the coal is manually requested, the coal mining machine must stop running or it is forbidden to clean the coal in the upper and lower ends and 5m away from the shearer, and disengage the clutch to prevent injury.

29. When cutting coal, timely recover the front beam of the bracket at the front of the drum, and the amount of undercover is appropriate to prevent the front beam cylinder and the guard plate before the drum cutting.

30. Pay attention to the operation of each component when moving the frame to prevent accidents.

31. When the bracket is self-decreasing, the pipeline leaks, and the bite is laid, it should be treated in time; when the pipeline is pressurized or leaking, the pressure must be released before processing.

32. When moving the frame, no other personnel shall be standing under the frame and in the front and rear frames.

33. Put coal under the minimum control top distance, and do not put coal in the operation section of the shearer. It is strictly forbidden to put coal before the frame.

34. Within the range of the working surface control top, the amount of the top and bottom plates is not more than 100mm/m.

35. The top surface of the working face does not have a step sinking. The top beam of the support is tightly connected and there is no floating raft; the bottom plate is at the same level as the floor of the transport and return airway, and the height is not lowered.

36. The height of the front beam of the bracket to the roof of the coal wall shall not exceed 300mm.

37. The brackets are arranged in a straight line with deviations exceeding ±50mm and the center distance not exceeding ±100mm.

38. The top beam of the bracket is parallel to the top plate, and the maximum elevation and depression angle are less than 7°.

39. The height of the adjacent bracket is not more than 2/3 of the height of the side guard. The bracket does not squeeze and does not bite to reach the initial support force. When the height is 3.5m, the bracket will be picked up in time when it is depressed, so that the bracket is too low to put out the top coal or crush the bracket.

40. The coal wall is straight, without umbrellas, and the vertical wall of the coal wall.

41. Move the roof in time, chase the operation, and extend the beam before the bracket. The end face distance is not more than 300mm, and the top is tight.

42. When the pressure is high, the upper and lower mouths should be twisted before the frame is moved to prevent accidents such as chipping and roofing.

43, may not help the recovery side of rock and metal joist net during loader operation.

44. Monolithic pillars should be inspected and pressure tested in time according to relevant requirements. Unqualified monomer pillars shall not be used.

45. The iron and iron contact support should be filled with a proper amount of wooden wedges to prevent collapse and injury when suddenly pressed.

46. ​​When lifting and supporting the two supporting pillars, it should be carried out in a stable and uniform manner. After the pillars reach the initial supporting force, they should stop moving.

47. When the beam is on the beam, the beam and column should be stabilized, and the column should be prevented from hurting people. The hand should be placed in a place that is not easily squeezed.

48. When the transportation lane is ahead of the support section, the maintenance worker shall not open or stop the transfer machine without contact with the end supporter.

49. The emulsification pump and the bracket safety valve must be used after being verified by the professional department, and the setting pressure of the safety valve must not be adjusted at will.

50. The top of the working surface is straight, not undulating, and has no arch shape; the coal wall is straight and does not leave an umbrella.

51. Before the mining, prepare the monomer hydraulic only host support material, both ends and two advanced support must comply with the regulations, otherwise mining is not allowed.

52. The coal wall should be cut straight, and the top and bottom plates should be cut flat to ensure that the hydraulic support is tightly connected.

53. During the recovery of the roof top coal during the recovery of the working face, the frame is moved with the pressure to wipe the top to prevent the top plate from loosening, and the front probe beam and the guard plate are extended to reduce the empty roof area.

54. When the pressure on the roof is large, it is necessary to strengthen the support and speed up the advancement of the working surface.

55. When the handling of the roofing conditions is not available, it is strictly forbidden for personnel to enter the roofing area.

56. Handling film gangs and roofing accidents must be quick and fast, from the outside to the inside, from the edge to the center, in a small scope, step by step, and there is a special person to observe the roof condition, so that the road is smooth, the materials and tools are complete, this work has Coordinate with the team captain and the squad leader on the scene.

57. When handling the work of sheet metal and topping, it is necessary to stop the shearer and conveyor and lock it. At the same time, the safety net should be registered. It is strictly forbidden to stand at the work place to prevent each person from falling and hurting people.

58. The top of the roof should be controlled to release the amount of coal, prevent the top coal from being pushed out, prevent the topping accident, prevent the empty top and the sheet gang, keep the bracket top tight and support strong.

59. It is strictly forbidden to put top coal within 5m from the roof area.

60. Before handling the local roof, the rivet must be strengthened around the rivet and the safety of the roof area should be checked. The roof area should be erected for filling.

61. Require the manual maintenance of the upper and lower mouth and the maintenance of the upper and lower ends of the work machine during the recovery process. And each class must have a special person to observe the upper and lower end support of the coal machine, and find the problem in time; when the working face is walking, it is strictly forbidden to walk in front of the front column to prevent the piece from helping the coal to hurt people.

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