Company News
Yuanjiacun Mine of TISCO Tackles World-class Problem--- Belt conveyor dust removal

By Li Chunlin UpDate 2017-09-28

President Xi Jinping pointed out that we want not only clean water and green mountains but also economic growth. But the economic growth must not be at cost of clean water and green mountains. In actuality, clean water and green mountains are priceless assets. Following the important thought of President Xi Jinping on ecological civilization construction and environment protection, Yuanjiacun Iron Mine aimed to solve the difficulties and keystones arising from building green-ecological mine in a highly responsible manner. Through scientific organization and tackling key problems, it has made a major breakthrough in controlling the dust from ore belt transportation and discharge,which safeguarded the environment effectively.
 
Yuanjiacun Iron Mine is a large open-pit mine, where ore is transported by trucks, semi-movable crusher and belt conveyor, with annual capacity of 22 million tons. The 5 km long ore conveyor discharging system, from semi-movable crusher to ore discharging unit, is the longest open production line in the mine, featuring multi-points and extensive operation. The system has lower transportation cost and ore loss than trucks; on the other hand, dust from the ore discharging process has become a major contamination, which holds back the development of the mine. It is extremely difficult to control such pollution so as to there is no any effective control practice at home and abroad.
 
With the mission of building first class mine, Yuanjiacun’s people were determined to solve the world class problem by themselves rather than just wait. They broke the restriction in mind and tried to change the situation they were facing in order to complete the impossible task. In doing so, Yuanjiacun advocated every single people in the mine to provide advices and solutions to the problem with their wisdom. As a result, a lot of good ideas and suggestions had been raised.
 
With the aid of wisdom of the masses and technical materials, the technical staff worked out several technological implementation plans. After repeated tests and comparisons, enclosing and wet dedusting systems were finally adopted to solve the pollution problem. As for enclosing desusting, dust hoods were installed over the belt conveyor and at falling material points to avoid flying dust with enclosed space; as for wet dedusting, spray nozzles, sprinklers and fog guns were arranged at two major falling material points. Fog gun was creatively used for earth-discharger dedusting. The dedusting water is largely from tailings recycling water, which exploits one-site two-function advantage to its full---the tailing dam also severs as earth discharge yard. All this dedusting measures have worked together to inhibit effectively dust emission with minimum cost.
 
Today, Yuanjiacun Iron Mine, with sky bluer, water cleaner and mountain greener, has stepped up to a new higher level in building green-ecological mine.