1. The driller must know the structure and mechanical performance of this machine before operation, and be familiar with the safety operation procedures of this machine.
2. If the machine stops for a long time, the impactor should be lifted out of the hole to avoid the hole collapse and blocking the drilling tool.
3, orifice when someone is working, it is forbidden to impactor into the wind. When removing the drill bit, turn off the slewing and lifting mechanism.
4. The cleaning, oiling and repair of transmission parts must be carried out in the shutdown state.
5, feng shui pipe joint should be fastened without running wind and water leakage.
6. Do not soak the cable in water or put it on metal objects. When the vehicle crosses the cable, it should be isolated and protected with wooden boards or sleeves to prevent the cable from being damaged and leaked. Insulating gloves must be worn when withdrawing or moving cables to avoid electric shock accidents.
7. The working site of the drilling rig should be flat. When working on the inclined ground, the wedge block should be inserted under the track shoe. It is forbidden to drill holes horizontally on the slope.
8, the job site should have enough lighting facilities. In case of lighting failure, stop and cut off the power supply immediately, and then continue to work after repair.
9. Before each use, the stolen goods in the gas supply pipeline, drill pipe and joint must be blown clean, so as not to enter the impactor and make the parts wear or get stuck.
10. When drilling, the rotary motor shall not rotate reversely to avoid the drill pipe tripping and the drill pipe thread abrasion.
1 1, the thrust of the drilling rig should be to ensure that the impactor does not jump when working.
12. Check whether the joints of all parts of the oil and gas pipeline are firmly connected at any time during work, or stop the machine for repair.
13, when metal fragments of the drill bit fall into the hole, they should be sucked out with a magnet in time.
14. When it is used for a long time, apply butter to the butter nozzles at all places where butter needs to be injected on each rotating pin every 7 days.
15. After the rig is used, the dirt such as surface rock powder should be removed in time for the next step.
16. Before starting, all parts of the drilling rig shall be thoroughly inspected. The specific requirements are as follows:
A. There is no crack in the welding seam of each part of the carriage, the connecting screw is not loose, and the tension rod of the tensioning device is connected reliably;
B. Sleeve clearance of slewing mechanism is moderate, sliding plate screws are not loose, gear transmission is flexible, and the connection of drill pipe joint, bearing gland and hollow spindle is firm and reliable;
C. improve the propulsion mechanism to brake safely and effectively;
D. The drive belt, chain and track plate of the traveling mechanism are elastic, the clutch is flexible to operate, and the driving gear of the sliding mechanism is in the disengaged position;
E. The drill pipe joint is free from welding and slipping, the impactor and drill bit are in good condition, the alloy column (piece) is free from welding, peeling and falling off, and the drill pipe, impactor and drill bit are connected reliably;
F. Each operating mechanism is in the stop position, and the instrument pointer is in the zero position;
G. cables and other electrical components shall be insulated reliably;
H dust removal device is sensitive, complete and reliable;
17, connect the air duct, the low pressure should reach 0.5-0.7Mpa, the medium pressure 1.0- 1.2Mpa, and the pipeline has no leakage.
18. During wet operation, the water pipes should be connected at the same time, the pressure should be equal to or greater than the wind pressure, and there is no leakage in the pipes.
19. Generally, the deviation of hole position during drilling operation shall not exceed 0.05m. Under special circumstances, with the permission of technicians, the maximum deviation shall not exceed 0.3m..
20. When starting the drilling rig, put each handle of the multi-way valve in the neutral unloading device, then start the diesel engine and slowly lower the drilling tool until the drill bit is about 30mm off the ground.
2 1. When drilling, open the lowering button of the lifting propulsion mechanism and lower the drilling tool. When the drill bit touches the rock, the impactor starts to work and drill holes. In case of sticking or deviation, lift the drilling tool and repeat the above procedures until the impactor starts to drill normally.
22. When the impactor starts to work, immediately stop lowering the drilling tool, and push the handle of the control valve to the pressure regulating position for pressure regulating drilling.
23. In case of sticking, it should be handled according to the specific situation, and the drill pipe should not be forcibly lifted. In case of water coming out of thick mud layer or hole, lift the drill first, and then stop the wind to avoid blocking the impactor.
17. The limit switch for pushing the cylinder bracket shall remain effective.
18: Stop the slewing mechanism when the main drill pipe enters the hole and the slewing mechanism reaches the end of the lower end of the carriage;
19. Lift the drilling tool repeatedly (about 1m) to blow off the rock powder at the bottom of the hole, and then stop the gas supply and exhaust fan;
20. When the hole depth meets the design requirements, lift the drilling tool about 1m, and stop gas supply after blowing off the rock powder at the bottom of the hole;
2 1, lower the drilling tool and check the accumulation of rock powder at the bottom of the hole. The allowable stacking height shall not exceed 300mm.
22. When stopping, put the multi-way valve handle on the neutral unloading device and lift the drilling tool; When the impactor is lifted to about 1m away from the orifice, stop gas supply to prevent the orifice from collapsing; Turn off the air and water pipes.
I believe that after the above introduction, everyone has a certain understanding of the safety operation specifications of DTH drillers. Welcome to Zhong Da for more information.
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