With the continuous development of science and technology, a variety of new types of machinery and equipment and technology continue to emerge, among which the excavation and down-the-hole drilling, as a new type of drilling equipment, has the advantages of high efficiency, energy saving, environmental protection, etc., and has been widely used in construction, transportation, minerals and other fields. This article will introduce in detail the working principle, characteristics, application scope and future development trend of excavation and down-the-hole drilling, so as to help readers better understand and master this new type of drilling equipment.
First, the working principle of digging and changing down-the-hole drilling.
Excavation and down-the-hole drilling is a kind of drilling equipment based on percussion rotary drilling, which realizes the compound movement of impact and rotation by combining the impact and the rotator, so as to efficiently break the rock and soil layer. In the drilling process, the impactor hits the bottom of the hole with a certain frequency and energy, and the rotator rotates at a certain speed, so that the rock or soil layer is broken under the combined action of impact and rotation.
Second, the characteristics of digging and changing down-the-hole drilling.
Excavation and down-the-hole drilling has the following characteristics:
1.High efficiency: The percussion rotary drilling method is used to drill down-the-hole drilling, which can efficiently break the rock and soil layer, thereby improving the drilling efficiency.
2.Energy saving and environmental protection: the energy consumption of digging and changing down-the-hole drilling is low, and the impactor will not produce sparks, avoiding the risk of combustion and high-quality, and has the characteristics of environmental protection and energy saving.
3.High reliability: there are fewer parts for digging and changing down-the-hole drilling, simple structure, convenient maintenance, and modular design, which is easy to replace and upgrade.
4.Wide range of application: Excavation and down-the-hole drilling is suitable for a variety of different terrain and geological conditions, including soft soil, hard soil, rock and other geological types.
5.Good safety: the excavation and modification of down-the-hole drilling adopts full hydraulic power system, which is simple to operate, safe and reliable, and the impactor adopts anti-jam protection design to avoid the occurrence of safety accidents such as stuck drilling.