I. Subject content and scope of application:
This procedure specifies the signs, warnings, evacuation and signals of blasting.
This procedure is applicable to the management of blasting operation in the open pit of this mine.
Second, the operating procedures:
1. The blasting operation shall comply with GB6722-86 "Blasting Safety Regulations" and the safety operation regulations of the blasters.
2. It is forbidden to carry out parallel blasting of upper and lower steps in the same section.
3, the day before blasting, blasting personnel should report to the mine leadership in writing the blasting time, place, explosive quantity and dangerous range. The mine shall promptly notify all operators of the open-pit mining field.
4, blasting must be carried out during the day; Noon11:00-12: 30; The blasting time is 15: 30- 16: 30 in the afternoon.
5. The blasting area must be clearly marked. Before blasting equipment enters the blasting area, blasting operators should plant red flags around the blasting area and at major traffic intersections, and irrelevant personnel and vehicles are not allowed to enter the blasting area.
6. The red flag around the blasting area can only be removed after the blasting personnel are evacuated, and the red flag at the main traffic intersection can only be removed after blasting.
7. Evacuate. The person in charge of blasting shall promptly notify the equipment and relevant personnel in the dangerous area to evacuate to a safe place.
8. Stay alert. After the charge is completed, the person in charge of blasting must arrange alert personnel to stand guard at the main traffic intersections in the dangerous area, and prohibit personnel and vehicles from entering the dangerous area.
9, open-pit mining field should be set up solid gun avoidance facilities, it is forbidden to use mining equipment and other bunkers instead of gun avoidance facilities.
10, the blasting personnel must confirm that all personnel and equipment in the dangerous area have been evacuated to a safe place before sending out the initiation signal.
1 1. After the gun is launched, it is forbidden for anyone to enter the gun pile to snatch the explosive packaging and other waste blasting materials.
12, blasting signal is sent by electric whistle or hand alarm;
Warning signal; One is long and the other is short. After the signal is sent, personnel and equipment are prohibited from entering the warning zone.
Knock signal; Continuous short tone, the signal tone shall not be less than 65438 0 minutes. Five minutes after the early warning signal is issued, it is confirmed that all personnel and equipment are evacuated from the dangerous area and the safety initiation conditions are met before the initiation signal is issued.
Remove the signal; Long sound. Before the alarm signal is lifted, the sentry should stick to his post, and no one can move the area except the inspector approved by the blasting personnel. Warning signals can only be issued after safety inspection is confirmed.
13, after the blasting, the blaster must enter the blasting area to check whether the blasting is completed. If there is misfire, reliable safety measures should be taken to deal with it and report to the mine leader.
14. Before the blasting equipment enters, the charged objects in the blasting area must be removed. Smoking and naked flame are strictly prohibited in the blasting area, and no loud noise and slapstick are allowed.
15, dumb and explosive materials must be recycled and sent to the explosive magazine for centralized destruction.
I believe that after the above introduction, everyone has a certain understanding of the safety operation procedures of quarry blasting. Welcome to Zhong Da for more information.
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