For a long time, the safety of coal mine always affects the hearts of miners and their families. The single hydraulic prop is a kind of mine support product. The use of single hydraulic prop brings convenience to coal mining and also adds a guarantee to the personal safety of coal miners.
A single hydraulic prop, also known as a single column, is different from a hydraulic support in its structure. It is matched with metal hinged roof beam and used in support of mining face. Individual hydraulic prop is suitable for the level in the dip Angle is not more than 25 ° or slowly inclined coal seam, after using the security measures, as well as used in the coal seam of between 25 °, 35 °, request not too soft, roof pressure cycle obviously, the direct roof caving prone surrounding rock conditions, the floor is too soft, complicated geological conditions, or a layered face using a single column, take corresponding safety measures. The use of single hydraulic prop, can not be mixed with different properties, specifications of the prop. The same type, specification of the pillar, in the operation to make its performance is consistent, when the column must ensure that each column to achieve its initial support. This is the key to roof management. Working face columns and hinged roof beams must be numbered and arranged; Should adopt section contract to erect and manage.
In underground support, attention should be paid to the damage of single hydraulic prop, regular inspection and maintenance. In the pillar of automatic unloading column, unloading valve failure, pillar surface mechanical deformation is obvious, mechanical scratch affect the operation, must be promptly out of the well for maintenance. We should pay more attention to these precautions in daily production and life, which not only improves the production efficiency, but also prolongs the service life of the single hydraulic prop, and also provides a more favorable guarantee for the safety of miners.
