The application value of dolomite mill in the field of fire resistant materiel

Dolomite, also called dolomite, is rich in calcium and magnesium, mainly composed of dolomite, also contains a small amount of calcite, clay minerals, flint, and magnesite and so on. Sometimes, it also contains gypsum, celestite, and barite and so on. Dolomite is one of the dominant mineral resources in our country. In our country, Liaoning, Inner Mongolia, Shaanxi, Jiangsu, Fujian, Hunan, Hubei, Guangxi and other places have found a large number of dolomite reserves, the dolomite is widely used. Among them, the fire resistance field is an important branch of dolomite.

1. The cause of dolomite

Dolomite, a common carbonate mineral, is formed in lakes, shallow seabed, saltwater reflux zones, or burial environments from early to late stages. But it is rare in the Holocene Sediments. Over the past half century, through continuous accumulation and development, the geosciences have recognized more than 20 different types of dolomite genetic models. The model of hydrothermal dolomitization and the model of microorganism dolomitization gradually become a new mainstream model, and the model of dolomitization and the model of reflux permeation dolomitization are generally accepted.

2. Physicochemical properties of dolomite

The dolomite crystals belong to the carbonate minerals of the three seminal systems. The pure ones are white, gray, meat, colorless, green, brown, black, dark pink, transparent to translucent, gray in iron, brown and glassy after weathering.

3. The use of dolomite

A. Metallurgical refractories area

Smelting iron and steel as a magnesia slag agent, in order to combine the molten silicon, aluminum, sulfur, phosphorus and other unneeded or harmful associated elements, to extract magnesium metal and make steel refractory materials and so on.

B. Chemistry area

Production of Magnesium Sulfate, Magnesium Oxide, light magnesium carbonate, American sand, rubber and plastic filler, etc.

C. Building materials industry

It can produce sulphate magnesia cement, high performance magnesia chloride cement, overfired lime silicate brick, crack treatment of gypsum products and wood products, etc.

D. Ceramic industry

The ceramic body and glaze are made of dolomite, magnesium oxide and calcium carbonate, which are used to replace talc and calcite.

E. Environmental protection

Water treated dolomite can be used for filtering materials, and is widely used in drinking water, industrial water, swimming pool water and other fields.

F. Glass industry

Limestone and dolomite are important ingredients in glass materials, which can play the role of flux, can greatly reduce the aging of glass, reduce the plasticity of color glass, and further improve the glass strength.

4. Muscovite refractories

Dolomite refractories are basic refractories with dolomite as the main raw material and calcium oxide and Magnesium Oxide as the main components. The content of calcium oxide is 40% to 60%, and the content of Magnesium Oxide is 30% to 40%. The properties of dolomite during calcining and the refractoriness of the calcined product depend on the mineral composition, structure and structure of dolomite, and the variety and distribution of the impurity minerals. The increase of CaO content in dolomite can increase the refractoriness of dolomite refractories. The increase of MgO content in water resistant dolomite refractories can increase the refractoriness of the dolomite.

5. Recommending equipment for dolomite mill

Guilin Hongcheng dolomite mill is an ideal powder making equipment. In the processing market of dolomite powder, the powder rate is high, energy consumption is little, energy saving and environmental protection, the system runs smoothly, and the service life is long. It help dolomite plays a greater market value in the field of fire resistance ares, and provides more super technical support and grinding powder for dolomite powder.

(1) HC series dolomite pendulum grinding mill

The mill has high production capacity and high scientific and technological content. It is new replacement equipment for traditional Raymond mill. It can process 80-600 mesh powder and cover a number of patent technologies. The performance index is greatly improved. It is suitable for non-metal mining areas such as dolomite, talcum, calcite and limestone. It can effectively improve the production capacity of single equipment, reducing the energy consumption per unit output, is an ideal choice for dolomite processing.

(2) HCH dolomite ultrafine grinding mill

The mill is an ultra-fine powder processing equipment for energy saving and consumption reduction. It is ideal equipment for preparing ultra-fine powder. It can be used in the field of deep processing and pulverizing for non-metallic minerals. It can be used to process 325-2500 mesh powders. The fineness of the powder is uniform and fine, which helps the enterprises to adapt to the market demand and improve their competitiveness.

(3) HLM dolomite vertical grinding mill

Hongcheng dolomite has a scientific and reasonable design structure, which integrates drying, grinding, grading and transportation. It can solve the problems of low production, high energy consumption and high maintenance cost of ordinary industrial mill. The product performance is stable, running smoothly, grinding field is wide, grinding type is rich, grinding efficiency is high, and investment cost is low. With high automation, it is excellent equipment for dolomite to realize large-scale processing.