At present, in the underground tunnel of coal mines, the hydraulic drilling rig and the pneumatic drilling rig are common drilling equipment. These two types of drilling rigs are different in performance, cost and scope of application, and this article will comprehensively compare and analyze them, hoping to bring you some help.
1. Performance analysis.
1. Dynamic analysis.
The column hydraulic drilling rig uses the hydraulic system as the power source, which has a strong power output and stable working performance. On the other hand, the column pneumatic drilling rig relies on compressed air to drive, and its dynamic performance is greatly affected by the air pressure stability.
2.Drilling efficiency.
Hydraulic drilling rigs usually have high drilling efficiency due to their strong power output. Although the pneumatic drilling rig has a relatively slow drilling speed, in actual operation, the hydraulic drilling rig has the characteristics of higher efficiency and more stable performance in complex formations and deep hole drilling; However, in some specific occasions, such as flammable and explosive environments or occasions with limited electricity**, pneumatic drilling rigs are safer and more advantageous.
3.Precision control.
In the drilling process, the hydraulic drilling rig can achieve high drilling accuracy through accurate control system. However, due to the limitation of power transmission mode, the precision control of pneumatic drilling rig is relatively weak.
Second, cost analysis.
1.Initial purchase cost.
Column-mounted hydraulic drilling rigs are more expensive to manufacture, so their initial procurement costs are typically greater than those of column-mounted pneumatic drilling rigs. However, with the advancement of technology and the intensification of market competition, the gap between the two is gradually narrowing.
2.Maintenance costs.
During the use of hydraulic drilling rigs, accessories such as hydraulic oil and filters need to be replaced regularly, and the maintenance cost is relatively high. The maintenance cost of pneumatic drilling rigs is relatively low, because of its simple structure and the frequency of replacement of accessories.
3.Running costs.
The operating cost of a hydraulic drilling rig is mainly affected by hydraulic oil consumption and electricity consumption. The operating costs of pneumatic drilling rigs are mainly affected by compressed air consumption. Where electricity is abundant and the cost is lower, hydraulic drilling rigs may be less expensive to run.
3. Application scenario analysis.
1.Engineering geological exploration.
In the field of coal mine geological exploration, hydraulic drilling rigs are widely used in deep hole drilling and complex formation exploration due to their strong power and drilling efficiency. Pneumatic drilling rigs, on the other hand, are more suitable for shallow hole drilling and exploration work under specific environmental conditions.
2.Mining.
In the field of mining, hydraulic drilling rigs have become the primary consideration due to their high-precision control and efficient drilling capabilities. However, in flammable and explosive mining environments, pneumatic drilling rigs are favored for their increased safety.
In general, the strug-column hydraulic drilling rig and the shelf-column pneumatic drilling rig have their own characteristics and advantages. In practical application, the appropriate type of drilling rig should be selected according to the specific needs and working environment to achieve better working results and economic benefits.