The chemical composition of dolomite is CaMg(CO3)2, and the crystal belongs to the trigonal carbonate mineral. The crystal structure of dolomite is similar to that of calcite. The crystal form is rhombohedral. The crystal face is often bent into a saddle shape. The polycrystalline twin crystal is common, and it is mostly in the form of massive or granular aggregates. Pure dolomite is white, and it is sometimes grayish green, grayish yellow, pink, etc. due to other elements and impurities, and the glass is lustrous. The three sets of rhombohedrons are completely cleaved and brittle. Mohs hardness of 3.5-4, specific gravity of 2.8-2.9. The mineral powder reacts slowly in cold dilute hydrochloric acid.
Processing Technology
The dolomite powder processing adopts the grinding method, and its production line equipment includes jaw crusher, cone crusher, Raymond mill (main part), bucket elevator, electromagnetic vibrating feeder, classifier, pipeline The specific process flow of the device, etc. is as follows:
First, the large amount of dolomite extracted is initially crushed by a jaw crusher, and then sent to a cone crusher for further fine crushing. The reason why the two sections are broken is to achieve sufficient dissociation of the useful material of the ore. The milling stage provides better ore raw materials.
The crushed dolomite material is not very uniform, and the mill has a specified feed size. In order to prevent the bulk material from entering the mill and causing adverse effects, the vibrating screen is generally used for screening treatment to make the dolomite mill. The powder index has increased significantly.
Next, the sieved dolomite scraps will be transported from the bottom up to the silo by the bucket elevator, and then sent to the Raymond mill for deep grinding by the electromagnetic vibrating feeder.
Finally, the powdered dolomite powder will be classified by the classifier. The unqualified fine powder will be sent back to the main machine for re-grinding. The dolomite powder meeting the fineness requirements will enter the finished silo through the pipeline device, and the powder tanker will be used uniformly. Pack it out.
Required equipment
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