He Yiqing, 36, is an ordinary worker in the Department of Prevention and Control of Tianchen Coal Mine. In addition to his work, he gave full play to his expertise in weak current and mechanical maintenance, and devoted himself to technological innovation and technological improvement. He successfully docked the gun and the portable instrument and developed a smart detonator. This device integrates gas detection and detonator explosion function. Once the gas in the field exceeds the limit, the detonator will automatically alarm and stop immediately, safe and reliable. After the project has been promoted, it can ensure the safety of shooting on the mining face and avoid major accidents.
Derrick crane, also known as Roof Crane, is a specific style of lifting machine. It is usually a fixed building crane, meaning it is assembled and disassembled in the location where it is used. Generally, the crane is characterized by its long, fixed length tower. These cranes are typically used in locations where items need to be moved from a common initial point to single nearby location, like on shipping platforms and construction sites. BQ models of derrick cranes including 10T Derrick Crane 2533A, 6T Derrick Crane DCB20-6, 10T Derrick Crane DCB24-10, 12T Derrick Crane DCB30-12, 16T Derrick Crane DCB30-16, 18T Derrick Crane DCB42-18.
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