采煤工作面运输设备的选型及刮板转载机选型介绍外文文献翻译、中英文翻译、外文翻译.docVIP

Coal Face transport equipment Selection and introduction to selection of scraper transfer machine Abstract) Coal Face Selection of appropriate transport equipment for coal mining face has an important influence on the selection design of coal mining face, On the various introduces the technical characteristics, scope of application and how to select various types of scraper conveyors, scraper transfer machines, and retractable belt conveyors. Keyword) scraper transfer machine; selection; technical characteristics 1、Coal Face transport equipment Selection Traction linked by the number and arrangement can be divided into single-scraper conveyor chain, bilateral links, double-center chain and the three links, and other four types. These bilateral links to various functions AFC Coal conditions, the use of a wider scope, the disadvantage is that there are two bilateral chain linked unforced absorbed phenomenon. Three bilateral links in the chain scraper conveyor developed on the basis of When the two chains not enough strength, an increase of a middle chain, the practice has proved that such a structure chain unforced absorbed form of the phenomenon than the bilateral chain scraper conveyor more serious, frequent broken link accidents, products are eliminated. Two-center chain-type compared with the bilateral links, the chain of uniform, bending performance advantages, but in the hard coal、large coal circumstances of the larger transportation to perform well. Small scraper conveyor single chain of more, but with the large-diameter circle in the chain, the chain increased strength, the German use of large-diameter circle of chain-linked heavy AFC, this form of chain conveyor To bear the load in the same circumstances, than the double-stranded chain of specifications to be larger. Scraper conveyor of the transmission capacity must be equal to or greater than Shearer or the production capacity of coal plough. But Shearer face conveyor and the productive capacity of roadw