Coal mining team blasting operation rules

First, the artillery preparation work

1. Smooth the bundled detonator foot line, pull the front end foot line to pull out the tube body, and do not pull the foot line hard to rub the foot line.

2. It is forbidden to sit on the medicine box and assemble the medicine.

3, assembly and introduction should be assembled in the top plate intact, the support is complete, avoiding electrical equipment and electrical conductors.

4. When assembling the medicine, prevent the detonator from being shocked or impacted and break the foot line and damage the insulation of the foot line.

5. Assembling the quantity of the medicine according to actual needs. When assembling the medicine, no detonator should be used instead of bamboo or wooden sticks. The electric detonator must be inserted into the medicine roll from the top of the medicine roll. It is strictly forbidden to insert the electric detonator obliquely in the middle of the medicine roll or on the medicine roll.

6. After the detonator is inserted into the medicine roll, the medicine roll is bundled with the foot line so as to fix the electric detonator in the medicine, and the end of the electric detonator foot line must also be kinked. Second, the drug work

1. When charging, the coal (rock) powder in the blasthole must be removed first. The medicine rolls must be gently pushed into the fundus with bamboo and wooden gun sticks to ensure that the medicine rolls are in close contact.

2. The amount of charge, the amount of mud and the mud of the water must be carried out in accordance with the safety regulations and operating procedures.

3. The depth of the blasthole does not meet the requirements of the blasting instructions and must not be charged.

4. The empty top of the work surface or the top control distance exceeds the regulations of the operation regulations. When there are missing columns, folding columns or umbrellas, the guns must not be loaded.

5. When the concentration of biogas or biogas is not more than 1.0%, abnormalities are found in the blasthole, the temperature is suddenly high, the gas is discharged, the coal is loose, and the old air is not allowed to be used.

Third, the line, the gun work

1. It is strictly forbidden to use two detonators at the same time in a coal mining face to perform blasting.

2. When the concentration of biogas exceeds the limit, it is forbidden to shoot. The distance between the shooting point and the energized starting point meets the requirements of the operating procedures.

3. The gunner's supervision class (team leader) set a warning to all access to the shooting site and issued a firing signal.

4, must adhere to the "three-person interlocking system" and "one gun three inspection system."

5. When the top plate is broken and the charge is released, the amount of charge should be reduced and the small cannon should be placed.

6. Connection and power-on must be operated by one of the gunners. When connecting the busbar, it must be checked whether the twist is shorted.

7. The joint between the detonator foot line and the foot line, the joint of the detonator foot line and the bus bar must be suspended. The joints of the detonator and the busbar are covered with insulating tape, and there must be no clear connectors on the busbar.

8. For the cannon, it is necessary to play a new blasthole parallel to the rifle at least 0.3 meters away from the rifle, and reload the gun.

9. After the shot, the guns are not blown away, and personnel are not allowed to enter the work surface.

10. The slippery or knockdown pillar that will be overturned must be processed before it can be used. It is strictly forbidden to put a cannon and a cannon. After the shot, it is necessary to hang the beam in time.

11. The personnel who fired the guns are not allowed to leave their posts. They should be removed by the team leader who arranged the warning.

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