Red mud is the polluting waste discharged from the aluminum industry when extracting alumina, which will cause great pollution to the surrounding land, air and water. The appearance of the red mud dryer has effectively reduced the harm of the red mud to the environment. It can dry the high-moisture red mud, and then it can be rationally used as a new resource.
Uses of dried red mud:
1. Construction field
Because red mud contains SiO2, Al2O3, CaO, Fe2O3, etc. and its sub-clay properties, it can be used in cement, bricks, ceramics, concrete, pavement materials, trace glass and plastics.
2. Environmental protection field
Red mud has good adsorption properties, and inorganic adsorption materials with good properties can be prepared after water washing, pickling and roasting activation.
3. Agricultural field
Red mud contains a large amount of calcium, silicon, potassium and phosphorus elements, as well as trace elements necessary for dozens of crops and a certain alkalinity, which can be formulated into agricultural fertilizers.
The principle of the drum type red mud dryer: the drum of the red mud dryer is a slightly inclined rotating cylinder. Sludge enters from the feed end of the red mud dryer, and with the rotation of the drum, the sludge moves to the bottom end under the action of gravity. When the wet sludge moves forward in the cylinder, it is directly or indirectly heated by the hot air to evaporate and dry a large amount of water in the wet sludge, and then the finished dry sludge is sent out at the discharge end.
If you need to purchase a red mud dryer, please feel free to consult.
WhatsApp
