论文部分内容阅读
2、预防的方法 在世界各国的露天矿里,预防矿岩同矿车粘结和冻结的方法得到了广泛的应用,其中使用最多的方法是:铺垫散粒体材料,喷涂液体、成膜材料和热力供暖。 预防松散材料与矿车冻结和粘结的各种方法的原理是:要么使材料中发生粘结和冻结的水分与运输容器的表面隔离;要么降低材料内所含的粘结水、冻结水到安全值;要么,在运输过程中保证材料的温降最小,小到不到冻结温度。
2, Methods of prevention In the open-pit mines in various countries, the method of preventing ore from sticking and freezing with ore carts has been widely used. Among them, the most widely used methods are bedding granular materials, sprayed liquids, film-forming materials And thermal heating. The principle of various methods of preventing loose material from freezing and bonding with a trolley is to either insulate the frozen and bound moisture in the material from the surface of the shipping container or to reduce the amount of water contained in the material to freeze the water Safety value; either, in the transport process to ensure the minimum temperature drop of the material, small enough to reach the freezing temperature.