Selection considerations for roadway repair machines used in coal mines（haoyun）

The editor from Shandong Haoyun Heavy Industry Machinery Co., Ltd. provides the following information regarding the selection considerations for coal mine tunnel repair machines.

Choosing the appropriate roadway repair machine for coal mines is crucial to ensuring repair effectiveness and economic benefits. The industry standards also regulate the model naming and basic parameters of roadway repair machines for coal mines.

When selecting a model, the following factors need to be comprehensively considered:

1. Tunnel conditions: including tunnel cross-sectional dimensions (which determine the external dimensions constraints of the repair machine), surrounding rock properties (which affect the selection of breakers and excavation buckets), tunnel slope, etc.
2. Operation requirements: main types of repair (such as undermining, slope expansion, and slag removal), estimated quantities, and efficiency requirements (affecting considerations of installed power, impact energy of the crushing hammer, and excavation capacity).
3. Equipment performance: such as maximum excavation height/depth/width, walking speed, climbing ability, turning radius, etc.
4. Safety and environmental protection: explosion-proof grade of equipment, noise control, dust suppression measures, etc.

As a crucial underground engineering equipment, the coal mine tunnel repair machine plays an irreplaceable role in enhancing the maintenance level of coal mine tunnels, ensuring safe production, and improving mining efficiency through continuous innovation of its technical principles and expansion of its application scope. With the advancement of intelligent construction in coal mines, tunnel repair technology is also evolving towards higher efficiency, greater safety, and more intelligence, providing strong technical support for modern coal mine construction.