Prevention skills of ignition accident at the most

2022-07-23
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Prevention skills of ignition accident during blasting

blasting is widely adopted in many construction. According to statistics, blasting accidents account for about 30% of industrial accidents in construction. Therefore, it is necessary to strengthen the construction management of blasting, so as to avoid the impact of the test results due to the cleanliness of the mold surface and the change of the size, and prevent the occurrence of blasting accidents. To prevent ignition accidents during blasting, the following points should be achieved:

contact person: Mr. Qian

1. No less than two people should be used for ignition with fuse or special ignition equipment. Open flame ignition is strictly prohibited. At the time of single ignition, whether the raw and auxiliary materials of the food contact materials being used have been authorized to be checked; The number of individual continuous ignition shall not exceed 5 with the advantages of high efficiency, energy saving and high cost performance. The length of the fuse shall ensure that after lighting the fuse, the personnel can evacuate to a safe place, generally more than 1.2m

2. In order to prevent lighting interruption during firing, the blaster shall carry a flashlight with him, and it is strictly prohibited to use open fire for lighting

3. When detonating with electric detonators, the electric detonators must be turned on one by one. The electric detonators used for the same blasting network should be of the same type and the same factory. Before connecting the blasting main line with the blasting power supply, the total resistance value of the whole line must be measured, and the error between the total resistance value and the actual calculated value must be less than 5% Otherwise, do not connect. Multiple initiation lines must be used for large-scale blasting

4. When using electric detonators for blasting, it must be carried out in accordance with the relevant provisions of the current national blasting safety regulations (GB), and the management of power supply in the tunnel must be strengthened to prevent electric leakage detonation. When charging, it can be illuminated by projection lamp and miner's lamp. The detonating main line should be erected in the air, and the distance from various conductors must be greater than 1m. Blasting operation shall be stopped in thunderstorm weather

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