Cement clinker baking equipment

Abstract

The invention relates to cement clinker baking equipment which comprises a working table, a rotary kiln and a preheating mechanism, wherein the lower end of the working table is installed on an existing working ground; the rotary kiln is disposed inside the lower end of the working table; the lower end of the rotary kiln is installed on the existing working ground; and the preheating mechanism isdisposed on the upper end of the working table. The equipment disclosed by the invention has the beneficial effects that cement clinker baking is realized by a design concept of combining multiple preheating structures; the preheating mechanism can use hot air to make preheating treatment of a raw material under a scattered state, the raw material can be transported, and the hot air can carry thedust-shaped raw material to vent outwards at the same time, so that an effect of raw material particle screening is realized.

Description

technical field [0001] The invention relates to the technical field of cement preparation, in particular to a cement clinker firing equipment. Background technique [0002] Cement clinker is a semi-finished product obtained by using limestone, clay, and iron raw materials as the main raw materials, which are prepared in appropriate proportions, burned until partially or completely melted, and cooled. In the cement industry, the most commonly used portland cement is The main chemical composition of clinker is calcium oxide, silicon dioxide and a small amount of alumina and iron oxide. The main mineral composition is tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. Portland cement After the clinker is ground together with an appropriate amount of gypsum, it becomes Portland cement. The production process of cement clinker includes crushing, raw material pre-homogenization, preheating firing and grinding and other substrate processe...

AI Technical Summary

Problems solved by technology

[0003] 1. The effect of preheating the raw meal before firing with a single preheating structure is low, and the raw meal is in a relatively static accumulation state, and this state makes the preheating degree of the raw meal uneven and The whole raw material achieves the preheating effect at a slower speed and longer time;

[0004] 2. In the preheating process of raw meal by non-gaseous heating method, the function of the preheating structure is relatively single, and the raw meal in the mixed state of particles and powder cannot be filtered. At the same time, raw meal is prone to appear on the preheating structure and other structures. Adhesion phenomenon, when the amount of adhered raw material is large, it is easy to form an adhesive scab layer

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