What is the effect of using energy-saving mechanical lime kiln tailings to produce lime?
What is the effect of using energy-saving mechanical lime kiln tailings to produce lime?
Lime kilns mainly use vertical kilns for calcining lime, which works very well. Not only can a new lime stone be calcined, but also some tailings or lime slag can be calcined. Moreover, this equipment has a good calcining effect. Many users hope to buy this equipment to obtain more and better lime material products. Therefore, users in need can come to choose this rotary kiln calcining equipment.
A method for producing lime from energy-saving mechanical lime kiln tailings can solve the problems of resource waste and pollution brought by zinc oxide smelting. Lime is a lightweight aggregate with multiple functions such as low density, high cylinder pressure strength, high porosity, thermal insulation, corrosion resistance, good seismic and antifreeze properties, and good resistance to alkali aggregate reactions.
It has a wide range of uses in construction, environmental protection, horticulture, metallurgy, chemistry, petroleum, and agriculture. Therefore, it has developed rapidly in recent years. Currently, the raw materials used to produce lime are mainly clay and shale. In order to protect the ecological environment, some places in China have banned mining, excavation, and sand mining.
Energy-saving mechanical lime kiln tailings are usually directly discarded, which not only wastes resources but also easily causes pollution. Therefore, using energy-saving mechanical lime kiln tailings to produce lime is of great significance for developing a circular economy and protecting the environment.
Compared with existing technologies, it has the following advantages: the method of producing lime from energy-saving mechanical lime kiln tailings includes weighing a certain amount of energy-saving mechanical lime kiln tailings and drying and crushing the sludge for later use.
After that, the dried and crushed zinc oxide tailings and sludge are mixed and added with moisture, then fed into a ball-making machine to make balls, screening out raw material balls with particle size comply with requirements, then drying the raw material balls and preheating them in a muffle furnace before sintering them in another muffle furnace, removing them and cooling them in the air to obtain the lime as described.
In addition to solving the problem of resource waste during zinc oxide smelting, this method can also effectively solve the problem of pollution. Furthermore, the lime prepared by this process has the advantage of high strength. In addition, there is another advantage. The biological lime produced by burning the energy-saving mechanical lime kiln tailings has well sintered overall structure, rough surface, and well-developed pores, with connected internal pores.