"The world fluorite is in China, China fluorite is in Zhejiang, Zhejiang fluorite is in Jinhua, Jinhua fluorite is in Wuyi. " For a long time, this has become the consensus of the fluorite industry. China is rich in fluorite resources. Fluorite deposits in Zhejiang Province are mainly distributed in Suichang, Wuyi and Changshan areas. Wuyi is known as "the land of fluorite". Fluorite deposits are densely distributed. Among the discovered deposits, there are 11 large and medium-sized ones, more than 170 small ones, and the reserves are about 40 million tons.
The use of fluorite (the main component is calcium fluoride) is very extensive. With the advancement of science and technology, the application prospects are more and more broad. At present, it is mainly used in the three major industries of metallurgy, chemical industry and building materials, followed by light industry, optics, engraving and national defense industry. Therefore, according to the requirements of use, China's fluorite mineral products mainly have four series of varieties, namely fluorite lump ore, fluorite (fluorine) concentrate, fluorite powder ore and optical, carved fluorite.
Based on more than 30 years of experience, Fodamon engineers summarized the various uses of fluorite ore as follows:
1. Metallurgical Industry
Fluorite has the characteristics of reducing melting point of refractory substances, promoting slag flow, separating slag and metal well, desulfurizing and dephosphorizing in smelting process, and enhancing calcinability and tensile strength of metals. Therefore, as flux, it is widely used in iron and steel smelting, ferroalloy production, iron carbide process and non-ferrous metal smelting.
2. Building Materials Industry
Fluorite is also widely used in glass, ceramics, cement and other building materials industry, and its amount occupies the second place in China.
In glass industry, fluorite is added as flux and shading agent, which can promote the melting of glass raw materials; in cement production, fluorite is added as mineralizer. Fluorite can reduce the sintering temperature and fuel consumption of the furnace charge, at the same time, it can enhance the liquid phase viscosity of clinker during sintering and promote the formation of tricalcium silicate. In the ceramic industry, fluorite is mainly used as enamel, which can play a role in the production of enamel and melting. Fluorite is also used in enamel industry and cast stone production. This reflects the value and significance of ore processing equipment.
Fluorite concentrate grade: 65.5%
Equipment Configuration: Fluorite flotation process consists of jaw crusher, ball mill, classifier, flotation machine, concentrator and rotary dryer, etc. It can form a complete mineral processing production line with feeder, hoist and conveyor.
Fluorite flotation process is one of the most important processes in fluorite flotation, and it is widely used. According to statistics, more than 90% of fluorite materials are treated by this process. Compared with other beneficiation methods, flotation is economical and effective. Note: This process is designed according to the standard process, and can be optimized according to the annual output and requirements of customers.
The extracted fluorite is first crushed by the main jaw crusher in the beneficiation equipment. After crushing to a reasonable fineness, the fluorite is evenly fed into the ball mill through the hoist and the ore feeder to crush and grind the fluorite. The fine ore grinded by ball mill enters the next process: classification. The spiral classifier cleans and classifies fluorite mixtures according to the principle that the specific gravity of solid particles is different and the precipitation speed is different in liquid. After washing and grading, the fluorite mixture is fed into the flotation machine, and different medicines are added according to different fluorite characteristics. After being separated, the minerals in fluorite will be separated. At this time, the water content will be high. The fluorite minerals will be dried after preliminary concentration by the concentrator and drying by the dryer.
3. Chemical Industry
Another important use of fluorite is in the production of hydrofluoric acid. Hydrofluoric acid is produced by reacting acid grade fluorite (fluorite concentrate) with sulfuric acid in a heating furnace or tank, and is divided into anhydrous hydrofluoric acid and hydrofluoric acid, which are both colorless liquids. , volatile, strong irritating odor and strong corrosive. It is a key raw material for the production of various organic and inorganic fluorides and fluorine.
4. As people's living standards improve, the demand for jewelry and crafts continues to increase. Fluorite has a dense structure, colorful and diverse, and has been valued as a raw material for craft carving.