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Method for calcination treatment of cement raw material

A technology of calcination treatment and cement raw meal, which is applied in the field of cement production and finishing, which can solve the problems of cumbersome calcination process, waste of resources, rough cement processing technology, etc., and achieve the effect of novel design, quality assurance and reduction of waste of resources

Inactive Publication Date: 2016-03-09
WUXI JIANGDA ENERGY SAVING TECH CO LTD
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Problems solved by technology

[0004] However, the existing cement processing technology is rough, the clinker calcination process is cumbersome, and the waste of resources is serious

Method used

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Embodiment Construction

[0012] The present invention will be described in detail.

[0013] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0014] This specific embodiment adopts following technical scheme: its processing method:

[0015] Step 1: Raw meal preheating treatment, fill the raw meal into the preheater, complete the preheating and partial decomposition of the raw meal through the preheater, replace some functions of the rotary kiln, shorten the length of the kiln, and at the same time make the kiln The gas material heat exchange process is carried out in a piled state, and it is moved to the preheater in a suspended state, so that the raw material can be fully mixed with the hot gas discharged from the kiln,...

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Abstract

The invention relates to the technical field of finish machining of cement production, and in particular relates to a method for calcination treatment of a cement raw material. The method comprises the following steps: 1, preheating the raw material, namely filling a preheater with the raw material to finish preheating and partial decomposition of the raw material by virtue of the preheater; 2, calcining a clinker, namely filling a rotary kiln with the preheated raw material for calcination; 3, cooling the clinker; and 4, grinding the clinker, namely grinding the cement clinker (together with a gelling agent, a performance adjusting material and the like) to an appropriate particle size (represented by fineness, specific area and the like) to form a certain grain composition, increase the hydration area of the clinker, accelerate hydration, and meet requirements of coagulation and solidification of a cement paste. The method is novel in design, reasonably makes use of advantages of equipment, reduces resource waste during clinker calcination, and meanwhile ensures the quality of cement calcination and is more safe and reliable.

Description

technical field [0001] The invention relates to the technical field of fine processing of cement production, in particular to a method for calcining raw cement. Background technique [0002] Cement, powdery hydraulic inorganic gelling material. After adding water and stirring, it becomes a slurry, which can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. The history of cement can be traced back to the Dadiwan people in Qin'an, China 5,000 years ago, who laid a floor similar to modern cement. A mixture of lime and volcanic ash, which was later used by the ancient Romans in construction, is very similar to modern lime pozzolanic cement. The concrete made of cemented crushed stone not only has high strength after hardening, but also can resist the erosion of fresh water or salt water. For a long time, as an important cementing material, it is widely used in civil engineering, water conservancy, national defens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/44
Inventor 蒋国芳金敏霞方鹏
Owner WUXI JIANGDA ENERGY SAVING TECH CO LTD
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