Chalk Preparation Raw Meal System

Abstract

The invention relates to a system for preparing cement raw materials from chalk, and in particular to a process system for preparing raw materials from fine powdery chalk materials with high water content. The system comprises a kiln system cooling machine, a draught fan, a hot air furnace, a kiln system preheater, a drying crushing machine, a powder grinding and powder selecting device and a dust collector. In the technical scheme, according to the physical properties of chalk and auxiliary raw materials, the drying and scattering function of the drying crushing machine and the efficient powder grinding function of the powder grinding device are sufficiently achieved; the efficient drying and scattering of the chalk can be realized; meanwhile, auxiliary blocky materials are crushed and dried; the preparation process of high efficiency and low consumption of the raw materials are realized; the system belongs to an energy-saving system for preparing the raw materials from the chalk.

Description

technical field [0001] The invention relates to a system for preparing cement raw meal from chalk, in particular to a process system for preparing raw meal from chalk material which is in the form of fine powder and has high water content. Background technique [0002] Chalk, also known as clay powder, is a fine deposit of calcium carbonate, a variant of calcite. The coccolithophores that make up the chalk are plant-based flagellates, which have two equal-length flagella, a spherical body with a size of 3 to 35 microns, and a large number of tiny calcareous shells covering the cell surface It is a cobblestone, which is oblate or oblate with a size of 1-11 microns, sometimes with trumpet-shaped protrusions. On the sea water, there are many extremely small animals and plants floating, among which there is a single-celled animal called "polypore", the shell of these organisms is composed of lime, and when these organisms die, they are extremely tiny Their bodies sank to the b...

AI Technical Summary

Problems solved by technology

[0005] For materials with high moisture content, ball mills are difficult to meet the drying requirements, and vertical mills are usually used to complete the drying and grinding process; but for fine powders, the grinding bed of vertical mills is difficult to operate stably; the main function of vertical mills is to powder Grinding, to grind blocky materials into powdery materials. For fine powders that only need to be broken up and do not need to be further crushed, vertical mills are obviously not suitable, and the grinding energy is wasted

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