Rotary drilling rig is a modern construction machine commonly used in construction engineering. It has the characteristics of flexibility, high efficiency, energy saving, economical and environmental protection, and has been widely used in highways, municipal construction and high-rise buildings. . 

There are many construction techniques for rotary drilling rigs, so what details should we pay attention to when we use small rotary drilling rigs for hole forming operations? Today, the editor will take you to understand some of the problems that should be paid attention to in the construction process of the rotary drilling rig.

Basic safety requirements for the operation of rotary drilling rigs

1. During work, all drilling rig staff must wear safety helmets, work clothes and work shoes.

2. Before the drilling rig starts drilling, the rig driver does not have to observe and understand the stratum section map of the working area.

3. When starting, let the engine idle for 2 minutes and 5 minutes in winter, check whether the instruments and indicators are normal. If there is no abnormality, the drilling can be carried out normally.

4. During operation, blind pressurization is prohibited, the lifting pressure should be controlled at about 300 Pa, and the rotational pressure should be controlled at about 100 Pa.

5. Always pay attention to whether the wire ropes are arranged in order on the main hoisting drum. If there is any disorder, they should be re-arranged; if the wire ropes are twisted, the joint heads should be checked and replaced if necessary.

6. Always pay attention to the working conditions of the drill pipe. If there is a phenomenon that cannot be recovered or released, or if there are other abnormal conditions, it should be reported to the leader on duty immediately, and should not be handled blindly.

7. During work, any red light (when the indicator light is abnormally lit) should be stopped for inspection, the cause can be found out, and the work can be continued after repairing.

8. When using the soil dumping motor, you should first press and hold the electric control button on the handle. After the system pressure rises to 15 Pa, slowly operate the handle to the maximum position; when stopping, you should first slowly return the handle, and then release the button. . It is strictly forbidden to release the electric control button suddenly when the handle has not returned to its original position.

9. After the completion of the project, the drilling rig must be cleaned, especially the sediment inside the drill pipe.