Marble

What is marble

Marble, also known as dolomite, is metamorphic rock formed by the original rocks in the crust under the action of high temperature and pressure in the crust. The main component of marble is calcium carbonate, accounting for more than 50%, mainly composed of calcite, limestone, serpentine and dolomite. The Mohs hardness of marble is between 2.5-5, there are many colors, usually have obvious patterns, generally contain impurities, a lot of mineral particles. Compared with granite, marble has soft physical properties, strong compressive strength and good physical and chemical properties. With the development of economy, marble plays a very important role in people's production activities.

The use of marble

Marble is soft, beautiful, solemn and elegant in style. It is mainly used for processing into various shapes and plates, used as walls, floors, tables and columns of buildings, and often used as materials for memorial buildings such as steles, towers and statues. It is an ideal material for decoration of luxury buildings. It can also be carved into practical works of art, stationery, lamps, utensils, etc Traditional materials. In addition, the crushed stone and corner surplus materials produced in the process of marble mining and processing are also commonly used in the production of artificial stone, terrazzo, stone rice and stone powder, and can be used as fillers in coatings, plastics, rubber and other industries.

Marble milling process

The first stage: crushing of raw materials

The large marble materials are crushed by the crusher to the feeding fineness (15mm-50mm) that can enter the mill.

The second stage: grinding

After crushing, small pieces of marble materials 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 4: 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.