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当前在施工现场进行混凝土拌合时,还都较普遍地使用卧式400立升的混凝土拌合机。用这种拌合机上料,简易方便,但由于碎石、砂子及水泥一同放到料叶子里,经振动传递到罐内,被风一吹,往往有许多水泥粉尘飞到大气中,在拌合机的周围形成雾状粉尘云,使操纵拌合机的工人受到粉尘的严重侵害。同时,由于拌合机料叶子和罐之间联接封闭不严,在下料时又有相当一部分水泥被振漏到罐外面,经观察测定,400立升混凝土拌合机由于振动传递漏掉的水泥,每百
Concrete mixers are currently being used on the construction site, and horizontal concrete mixers of 400 liters are also commonly used. With this mixer feeding, simple and convenient, but due to gravel, sand and cement together into the material leaves, the vibration transmitted to the tank, the wind blows, there are often many cement dust flew into the atmosphere, in the mix The formation of a cloud of dust around the co-machines made workers who manipulate the mixers severely encroached upon the dust. At the same time, due to the tightness of the connection between the mixing machine material leaves and the tank, a considerable part of the cement was leaked to the outside of the tank when the material was discharged. After the observation and determination, 400-liter concrete mixer leaked cement due to vibration , Every hundred