人们采用各种输送机来运送粉粒状及流体物料。从输送机的现状看,对于粉状固体物料,以用皮带机输送最普遍。由于皮带机的输送量大、运输距离长,并且在初次投资及运转费用等方面较为经济,因此得到广泛的应用。但皮带机也不是没有缺点。因为物料是敞开地装载在皮带上输送,所以会出现物料飞扬、散落等问题,虽可用加罩壳之类来防止,但这只是消极的办法,不能充分避免这个问题。从环保的角度出发,希望实现在管子内的密闭输送,这是目前面临的课 People use various conveyors to transport powdered and fluid materials. From the current situation of conveyors, it is most common for powdery solid materials to be transported by belt conveyors. Belt conveyors are widely used due to their large transport volume, long transport distance, and economical in terms of initial investment and running costs. But belt conveyors are not without their drawbacks. Because the material is transported openly on the belt, there are problems such as flying and scattering of the material. Although it can be prevented by adding hoods or the like, this is only a passive method and cannot fully avoid this problem. From the perspective of environmental protection, it is hoped that the closed transportation within the pipe will be realized. This is the current lesson