Small eye tunneling safety operation procedures
2. The small eye opening must hold an opening notice approved by the production technology department, operate according to the specified small eye, and strictly implement the opening safety technical measures.
3. When there is an independent return air, only one small eye is allowed to dig in order to avoid confusion and cause accidents; when there is no independent return air, only two small eyes can be excavated at the same time to facilitate ventilation and pedestrians. It is necessary to dig one by one through small eyes.
4, a bureau fan is only allowed a small eye to dig into the head for the wind, not allowed to supply the wind, so as to avoid the lack of air, causing an accident.
5, the air volume is insufficient, no wind and gas overruns are not allowed to operate, to prevent gas accidents.
6, must work for two or more people, one person is prohibited from homework, so as to avoid unsupervised and rescued, casualties.
7. Organize the air duct, hang straight and firm, without sharp turns, tight joints, pull in place, the air outlet is not more than 4 meters away from the working point. After each shot, you must check the finishing air duct and then enter the operation to prevent There is no wind and a gas accident.
8. Set the double-over-wood in the small eye opening at the working place, and the roots at both ends should be no less than 20cm. In the small eye, a specified table is fixed every meter, and each end is placed in a column of not less than 15cm to prevent falling.
9, dig the eye socket to set the eye position, according to the operating procedures parameters eye, each eye 1.2 meters deep.
10, in strict accordance with the "coal mine safety regulations" provides charge blasting.
11. The distance between the small eyes is 6 meters, the platform distance is 6 meters, the section is 0.8×0.8m2, and the section of Maoxiang is 1×0.9m2. If it is too large or too small, it is not conducive to coal mining and unsafe.浮 Clean the floating coal in the Mao Lane to ensure the section size and ensure the quality of the small eye construction.
12, two small eyes digging into the head at the same time, must be separated by at least 24 meters, in order to prevent mutual influence, an accident.
13. Pedestrian ladders must be hung in place at a height of no more than 6 meters from the operating point to prevent falling eyes.
14. Before the small eyes are penetrated, 5 meters must be sent to set up a warning and implement measures.
15. When you get off work, report to the cadre of the class, check the footage, put the tools and equipment in the designated place, count the number of people, and explain the problems and hidden dangers to the class.
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