Dolomite

What is dolomite

Dolomite is a carbonate mineral, which includes iron dolomite and manganese dolomite. Its crystal structure is like calcite, often rhombohedral. When cold dilute hydrochloric acid, it will bubble slowly. Some dolomites emit orange red light under the irradiation of cathode rays. Dolomite is the main mineral composition of dolomite and dolomitic limestone. Dolomite crystal is a kind of carbonate mineral of trigonal system, pure white; it is gray when containing iron; it is brown after weathering with glass luster; it is the main mineral of dolomite.

Application of dolomite

Dolomite can be used in building materials, ceramics, glass and refractories, chemical industry, agriculture, environmental protection, energy conservation and other fields. It is mainly used as basic refractories and fluxes for blast furnace ironmaking; for producing calcium magnesium phosphate fertilizer and magnesium sulfate; and as a raw material for glass and ceramics. In other applications, it can be used as a flux in the tire glaze.

Some ancient kilns in the north, such as Dingyao, often add dolomite to the body glaze, and some colored glazes in Jingdezhen also add dolomite.

Dolomite milling process

The first stage: crushing of raw materials

The dolomite bulk material is crushed by the crusher to the feed fineness (15mm-50mm) that can enter the mill.

The second stage: grinding

After crushing, small pieces of dolomite are sent to the storage hopper by the elevator, and then evenly and quantitatively fed into the grinding chamber of the mill for grinding by the feeder.

Stage three: grading

The milled materials are graded by the grading system, and the unqualified powders are returned to the host machine for regrinding after being graded by the classifier.

Stage four: collection of finished products

The powder meeting the fineness will flow through the pipeline into the dust collector for separation and collection. The collected finished powder will be sent to the finished product bin by the conveying device through the discharge port, and then packaged by powder loading tanker or automatic packer.