There are many types of drilling rigs used in coal mine tunnels, among which the more common ones are pneumatic column drilling rigs, hydraulic column drilling rigs, ZDY full hydraulic tunnel drilling rigs, crawler hydraulic drilling rigs, etc. This article will analyze these models, hoping to help you choose a drilling rig.
1.Pneumatic pillar drilling rig.
Pneumatic shelf column drilling rig is a kind of drilling rig that uses compressed air as the power source, which has the advantages of simple structure, convenient operation, flexible movement and good maintenance. It is suitable for medium and shallow hole drilling, especially for use in tight underground spaces. However, due to the lower power output of pneumatic drilling rigs, the drilling speed is slower, so it is less efficient when drilling large and deep holes.
2.Hydraulic shelf column drilling rig.
Hydraulic shelf column drilling rig is a kind of drilling rig that uses hydraulic motor as the power source, which has the advantages of high output power, high rotation speed and fast drilling speed. It is suitable for medium to deep hole drilling and is able to drill quickly in hard rock formations. However, due to the shortcomings of hydraulic drilling rig such as complex structure, difficult maintenance, and inflexible movement, it is not suitable for use in a narrow underground space.
3.ZDY full hydraulic tunnel drilling rig.
ZDY full hydraulic tunnel drilling rig is mostly used for exploration and coring operations, and has the advantages of compact structure, convenient operation, flexible movement and high reliability. It is suitable for all types of rock drilling in tunnels and is able to drill quickly in hard rock formations. However, because the ZDY tunnel drilling rig uses a hydraulic motor as a power source, it is also not suitable for use in small underground spaces.
4.Crawler hydraulic drilling rigs.
The crawler hydraulic drilling rig is a drilling rig that integrates the crawler walking system and the hydraulic power system, which has the advantages of high output power, flexible movement and strong adaptability. It is suitable for all types of rock drilling and is able to drill quickly in hard rock formations. In addition, because the crawler hydraulic drill rig has a small body and an integrated system, it can be used in tight spaces downhole. However, the crawler hydraulic drilling rig is higher and more difficult to maintain.
In general, each drilling rig has its own advantages and disadvantages, according to the actual situation of the roadway and drilling needs, comprehensive consideration, in order to choose the more cost-effective drilling rig.