The chain scraper conveyor has strong structure which can endure the foreign force that come from the coal, rock or other materials. Chain scraper conveyor can adjust and work well in the unevenly surface of digging coal fields .Chain scraper conveyor can undertake the bend request both on vertical and horizontal directions . Chain scraper conveyor has short height, easy to install. Meanwhile, chain scraper conveyors are also can run reversely. We can set up the inlets and outlets on the transporting length. The shell is totally closed which can prevent dust from flying outside. If no shell at the end of tail, we can put the scrapers into the materials ,discharge materials automatically.