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20 century and 90 years, China has become the world’s largest coal producer, China’s abundant coal resources, cheap labor, this should be an advantage in the international market competition, but due to technical, managerial, institutional and other reasons, most of the inefficient coal mine labor. With the direction of coal to the large-scale development of devices to large-scale, high-power of direction, so the proposed new and higher power requirements. Inverter technology is the means of semiconductor power devices on the power conversion, control and optimize the use of technology. Variable frequency technology for coal mine hoist early and rapid development. Variable Speed in advanced countries has been widely used for belt conveyor or belt conveyor speed control, fan speed control (including the main fan and the local fan) and water Pump The governor. The use of modern communication equipment and more speed, can improve the speed performance in addition to, the more important to save Energy . The equipment currently used in China in speed technology was not widespread, the market potential. Frequency
To further promote the application of technology in the coal industry and its lower carbon energy future, in April 2010 from 10 to 11, the Beijing co-Sheng Kang 100 000 000 Frequency Technology Co., Ltd. held in Taiyuan, Lihua Building, “co-Kang Frequency and Design Institute of the Technical Symposium of coal “, nearly 20 well-known institutions units invited to participate, to be close to 60 experts. Regulation of Coal Institute Zhi-Pacific director of the Taiyuan Coal Design Institute, Deputy Director Gao Yang-Doo, Taiyuan Homestead Design Institute Qinjing Chun Ming Chief Engineer, Chief Engineer Wang Lian Taiyuan Spring City Design Institute, Taiyuan Wei Yuen Tung Design Institute of total workers, Ma Xinyu Coal Design Institute, Nanjing General Engineering and other leading person of this Council, and co-Sport technical experts to conduct technical exchanges deep.
Combined frequency of Shanxi Office manager Chen Song Kang presided over the meeting, Chen Yu, director of Mine Division introduced the company’s joint health overview and co-principal explained Kang High pressure Inverter And its application in the mining industry, the classic case. It is reported that combined high-pressure Kang Inverter In the mine hoist is the first performance has been in the industry’s reputation for all to see. Vector control with feedback to enhance the energy conversion machine as the leading international technology cooperation and Sport, the technology through the National Science and Technology Appraisal of Coal Industry, the absolute leading position in the country. The application of frequency converter in mine now mainly focused on belt and winch. As technology advances, I believe that technology will be the same frequency as in developed countries has been widely used in the