1 Mines with deeper burial, shorter strikes and more concentrated distribution;
2 The ore bodies are relatively scattered and long-term, and each mine section is convenient for excavating the mines of the return air wells.
A centralized ventilation system that uses multiple machines operating in parallel in different wellbores shall comply with the following regulations:
1 When one main fan is running, other main fans should be started freely, and the wind flow in each main fan load area should be stable; when one main fan is out of service, its ventilation and dirty air should not flow into other main fan ventilation areas;
2 When multiple wells are ventilated, the working surface between the wellbore shall not form a stagnation zone;
3 The resistance of each main fan ventilation area should be equal.
Double Girder Overhead Crane With Winch
1. There are three types of double beam bridge crane operating room: separate type, closed type and thermal insulation.
2. The platform entrance of double beam bridge Crane Cab is divided into three types: side, end and top.
3. H is the increased height of Crane Buffer.
4. Double beam bridge crane is divided into indoor and indoor cranes. When ordering, the highest and lowest temperature of the working environment and the type of power supply and other technical requirements shall be indicated.
5. Overload limiter, large screen display and various protective devices are added to further increase the safety during use.
6. Double beam Overhead Crane generally adopts air operation mode, which is different from other ground operated cranes. Air operation means that there is a separate small operation room under the crane, while ground operation means that the operator carries the remote control
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