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Safety operation rules for construction of anti-shaft and coal lining

Source: xe1x.com Author: admin Date: 2019-05-11 10:21 heat:
Safety operation rules for the construction of backholes and coal linings I. General regulations <br/> Article 1 The construction of backholes and coal linings is characterized by digging from bottom to top. Depending on the length, the construction methods generally include hanging cages and Two types of wooden stacks. When the length is less than 20 meters, wooden piles are mostly used for construction. When the length is more than 20 meters, hanging cages are mostly used for construction.
Article 2 Blasting equipment is properly selected and explosion-proof electrical equipment is used. Signals must be sensitive, reliable, and sound and light.
Article 3 Strengthen ventilation management and gas inspection. When using a local fan for ventilation, do not stop the wind at any time. If there is a wind outage due to maintenance, power outages, etc., cut off the power and evacuate the personnel. Only after the ventilation is restored and the gas is checked, can it work.
Article 4 Operators of anti-pit driving shall wear safety ropes and safety belts. Raincoats must be worn at work locations where water is dripping.
The last few shots of the fifth section (usually 2-3 meters) should be dug from top to bottom.
Article 6 After excavation of the small anti-well, if its cross section is not enough, it should be enlarged from top to bottom. During the process of brushing, the materials and tools are transported from top to bottom. When drilling or erection of wooden trays, small backwells should be covered tightly. Temporary support is made of rectangular wooden trays with a spacing of 1 meter to ensure safety.
Article 7 uses wooden trays for construction. Within 2 to 3 meters when openings are to be digged, wooden boards can be installed and wood trays will be installed in the future.
Article 8 During the construction of the hanging cage, the lifting cage must be drilled and used as a guide for the tunneling. The deviation of the drilling hole shall not be greater than 1/2 of the tunneling radius. In addition, in order to meet the needs of construction, two drilling holes are needed for laying signal cables and firing lines. The diameters of various types of drilling holes should meet the design requirements.
Article 9 The maximum height for eye-catching with a hanging cage shall not exceed 120 meters. Otherwise, it should be constructed in sections, and the diameter of the standing eye should be about 3 meters. Large-diameter standing eyes are performed from top to bottom by brushing.
2. Blinking and firing <br /> In addition to the implementation in accordance with the relevant regulations, the following points must be noted:
1. During the construction of the hanging cage, the number of people who ride the hanging cage can not exceed the requirements. The drilling tools, tools, drill rods, etc. that are carried do not exceed the requirements, and are inspected and supervised by a special person.
2. When the hanging cage stops at the eye-punching position, the hanging cage should be fixed with the fixture on the wall of the well, and then an experienced old worker should be allowed to go to the tank top to check the top and small pieces of deaf stones. Measures should be formulated to deal with it, and other personnel can only work on the tank top when the safety is confirmed. During the construction of wooden piles, experienced old workers also entered the upper working surface from the sidewalk to deal with deaf stones. After the floating rafters were cleared, other personnel entered the upper working surface to make holes.
3. When drilling the cage, the top of the tank should be laid with a non-slip rubber cushion, and the top of the cage and the surrounding hinged work trays should all be lowered. When the wooden stack is constructed, the board should be laid with the perforated work trays.
4. When the rock is hard, the bottom of the eyes should be inserted into the bottom plate about 20 cm, and more medicine should be properly loaded to avoid pulling the bottom and causing the roadway to "drift up". In order to prevent the cannon from collapsing, it should be undercut.
5. When drilling, the pipeline or cable should be firmly fixed on the hanging cage or wooden tray. Each section of Feng Shui pipe joints must be connected with lead wire to avoid falling off. When the depth exceeds 20 meters or the tensile strength of cables and Fengshui pipelines is insufficient, a thin steel wire rope or nylon rope to assist lifting is also required.
6. After drilling, the drilling tools must be placed in the hanging cage or from the sidewalk to the tool storage location.
7. During the anti-well and coal digging, the detonators and explosives used on duty must be assembled at a safe place in the roadway below, and placed according to the number of initiation stages and classifications. It is not allowed to charge in the hanging cage or work tray. When transporting detonators and explosives in a hanging cage or by hand, a special wooden case that is waterproof, insulated, and resistant to impact must be used.
8. After the medicine is loaded, the foot lines should be pulled tightly when pulled out, but the foot lines should also be prevented from breaking. The bus bars must be fixed on the side wall, and finally the bus bars must be connected and then evacuated from the work surface.
9. Before firing, the hanging cage must be placed in a safe place in the lower aisle. At the same time, the hoisting winch wire rope and signal line are pulled out of the borehole. During the construction of the wooden stack, the work tray must be removed to use the pedestrian and ventilation rooms. The wooden boards were blocked, all personnel were evacuated from the work surface, and the alert was set according to the regulations. The gunners issued a firing signal and waited at least 5 seconds before firing.
10. Inspection after firing should be carried out after 15 minutes.
Third, wooden plate erection <br /> Article 11 Before construction, the surveyor hangs the crosshairs, and presses the line to hang the shed. The wooden tray is located on the alley, and is generally a four-cornered wooden tray. An octagonal wooden tray can also be used. Then use the nails to connect firmly with the lifting shed.
Article 12 The specifications of wooden trays shall be erected in accordance with the "Operating Regulations". The maximum two wooden tray beams shall be extended into the rock gang and supported by wooden sheds below. The corner of the wooden plate is connected with the brace with a nail. In order to prevent the film gang, the empty gang should not exceed the regulations, and the back plate must be used to brake between the wooden plate and the gang.
Article 13 The temporary workbench on the wooden plate shall be removed before firing, and an inclined baffle shall be laid on the upper part of the sidewalk, so that the fallen vermiculite will be concentrated in the vermiculite to the installation point. To prevent vermiculite from leaking into the sidewalk, dense semicircular wood should be nailed to the side of the vermiculite. The setting of the ladder between the pedestrians should be from bottom to top, and it should be firm and reliable.
Fourth, lifting the cage <br /> Article 14 Before driving, check the switches, buttons, guide wheels, wire ropes, hook heads, hand brakes, signals, etc., and make a depth mark.
Article 15 When lifting the hanging cage, first send the signal, operation cable and power-off protection operation cable into the borehole, and lower it to the lower opening of the lower lane. The lower personnel used a signal to lower the hoisting wire rope. When the hook head is lowered, it is pulled to the side of the hanging cage below the standing eye, and the hanging cage is connected by a special person. After detailed inspection of each part, the hanging cage can be pushed below the standing eye .
Article 16 After lifting the cage, check the components, couplings, safety devices, etc. of the cage once again to ensure that it is intact and safe, and then run the empty cage once. It is strictly forbidden to take passengers, place tools and other objects during the test lifting.
Article 17 The cage hoisting winch uses a slow return column winch with a braking device. The driver is shouldered by a responsible person who is familiar with the business.
Article 18 When operating, the driver must concentrate his energy, pay attention to the signal and winch operating conditions at all times, strictly control the height and travel, and stop in time when he finds abnormal phenomena.
Article 19 When the hoisting cage stops lifting, the winch driver must press down the brakes and not be allowed to leave the job. When the operation is completed, a field handover is performed.
V. Decoration <br /> Article 20 Whether it is manual or mechanical decoration, it must work under the protective frame.
Article 21 When the standing eyebrush is large, the upper mouth shed must be protected before the decoration can be performed on the lower side.
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