What is dolomite

Dolomite is a carbonate mineral, including iron dolomite and manganese dolomite. Its crystal structure is like calcite, often rhombohedral. Bubbles will slowly appear when exposed to cold dilute hydrochloric acid. Some dolomites emit orange-red light under cathode ray irradiation. Dolomite is the main mineral component of dolomite and dolomitic limestone. Dolomite crystals belong to the carbonate minerals of the trigonal crystal system. The pure ones are white; gray when containing iron; brown after weathering, with glassy luster, and are the main minerals that make up the dolomite.

Uses of dolomite

Dolomite can be used in building materials, ceramics, glass and refractory materials, chemical industry, agriculture, environmental protection, energy saving and other fields. It is mainly used as a flux for alkaline refractory materials and blast furnace ironmaking; production of calcium magnesium phosphate fertilizer and preparation of magnesium sulfate; and ingredients for the production of glass and ceramics. In other applications, it can be used as a flux in the glaze.

Some ancient kilns in the north, such as Ding kiln, often add dolomite to the glaze, and dolomite is also added to some glazes in Jingdezhen.

Dolomite pulverizing process

Dolomite raw material composition analysis 

Remarks: It often contains impurities such as silicon, aluminum, iron, and titanium.

Dolomite grinding mill selection scheme

Remarks:  Select the host according to the output and fineness requirements.

1. Crush raw materials

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

2. Milling

The crushed small dolomite materials are sent to the storage hopper by the elevator, and then sent to the grinding chamber of the mill evenly and quantitatively by the feeder for grinding.

3. Classification

The ground material is classified by the classification system, and the unqualified powder is classified by the classifier and returned to the main engine for re-grinding.

4. Collect finished products

The powder that meets the fineness is separated and collected in the dust collector through the pipeline through the airflow. The collected product powder is sent to the finished product silo through the discharge port by the conveying device, and then is packaged by a powder tanker or an automatic baler.

Analysis of various mills

Classic case of dolomite milling

Processing material: Dolomite

Fineness: 325 mesh D97

Output: 8-10t/h

Equipment configuration: 1 HC1300

The whole set of Hongcheng equipment has a compact process and a small footprint, which saves plant costs. The entire system is fully automated, and a remote monitoring system can be added. Workers only need to operate in the central control room, which is simple to operate and save labor costs. The performance of the mill is also stable, and the output has reached expectations. All the design, installation guidance, and commissioning of the entire project are free of charge. Since the use of the Hongcheng mill, our output and efficiency have improved, and we are very satisfied.