What Special Accessories Are Needed for Second-hand Rotary Drilling RIGS in Rock Stratum Construction?

Rock strata have high hardness and dense structure. When second-hand rotary drilling RIGS are in operation, problems such as slow drilling, rapid wear and tear of accessories, and great difficulty in hole formation are prone to occur. With targeted special accessories, it can effectively cope with the harsh working conditions of rock strata, improve drilling efficiency and equipment durability. The following analyzes its compatibility value from six key accessory dimensions:

1. Cone drill bit: Ordinary drill bits are prone to chipping in rock formations. Cone drill bits crush rocks by multiple sets of rotatable cones and are suitable for medium-hard to hard rock formations. Its blunt head design can reduce impact damage, extend service life and improve the crushing efficiency per unit time at the same time.

2. High-strength drill pipes: During rock drilling, drill pipes need to withstand huge torque and axial pressure, and ordinary drill pipes are prone to bending and deformation. The selection of drill pipes made of high-strength alloy materials can enhance the fatigue resistance and fracture resistance, avoiding the interruption of construction due to drill pipe failure.

3. Impactor: When facing hard rocks, the efficiency of simple rotary drilling is extremely low. By installing pneumatic or hydraulic impactors, rocks can be broken through high-frequency impact. Combined with the rotation of the drill bit, it can achieve a dual effect of "impact + cutting", significantly increasing the drilling speed.

4. Wear-resistant drill pipe lock: Repeated drilling in rock formations can easily lead to wear at the connection points of drill pipes. Loose drill pipe locks can affect power transmission. Wear-resistant drill pipe locks with surface hardening treatment can enhance connection stability and reduce the frequency of maintenance caused by lock wear.

5. Cooling system accessories: The frictional heat generated during rock drilling can easily cause the drill bit to overheat and get damaged, and ordinary cooling systems are difficult to meet the requirements. Replacing the high-flow cooling water pump with high-temperature resistant cooling water pipes can enhance the heat dissipation effect and maintain the optimal working temperature of the drill bit.

6. Shock absorption device: The severe vibration generated during rock drilling not only affects the accuracy of hole formation but also accelerates the wear and tear of equipment components. Installing drill pipe shock absorbers or body shock absorbers can absorb part of the vibration energy, protect the core components of the drilling rig, and at the same time enhance operational stability.

In conclusion, in the construction of rock strata, second-hand rotary drilling RIGS should be given priority to be equipped with special accessories that have strong rock-breaking capacity and are wear-resistant and wear-resistant in order to break through the limitations of the stratum and ensure the efficiency and safety of the construction. When choosing accessories, it is necessary to combine the hardness of rocks (such as granite and limestone) with the power parameters of the drilling rig to ensure the compatibility of the accessories. At the same time, regularly check the wear and tear of the accessories, replace and maintain them in a timely manner, and maximize the operational efficiency of the equipment.