EPC means engineering, procurement and construction. EPC companies show the contract model. In other words, EPC is a kind of contract model not an enterprise. Basically, designing institutes carry out EPC contract in the domestic. Sometimes construction units do EPC contract.
The long-distance belt conveyer design has features of long distance delivery, large-capacity, high speed, and continuous conveying. Besides, reliable operating, simple maintenance, easy realization of automatic and centralized control, and remarkable economical benefit are the advantages of the long-distance belt conveyer. mining equipment. The operation and maintenance cost of belt conveyor is far below other types of transporting equipment. The energy consumption is low, only the 1/2-1/3 of scraper conveyer. So the long-distance belt conveyor has become the most popular equipment in the industrial processes. The apron feeder adopts high-duty bulldozer's die forging chain (pitch of 228.6mm)as traction. Two chains circles a pair of drive sprocket in machine head and tightening pulley in machine tail to form closed loop circuit. The fitting of conveyor trough in each chain unit of two chains makes the apron feeder form a continuous conveying line. The self-weight and materials weight are supported by rows of track roller, jockey pulley, track beam. The drive system operates through the connection of ac variable frequency speeding motor and reducer, connection of casing and transmission. The apron feeder conveys materials from stock bin along the conveyor line to the front of engine, which realizes the purpose of downward continuously uniform feeding. 辑.
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