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Stability control process for C3A content of road clinker discharged from kiln

A technology of stable control and clinker, which is applied in the field of stable control of C3A content in clinker on the way out of the kiln, can solve the problems of unreasonable ratio, unstable quality and large mud content, and achieves reasonable ratio and improved High calcination quality and high mud content

Inactive Publication Date: 2015-03-11
GUANGXI YUFENG CEMENT
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Problems solved by technology

[0018] In the process of realizing the present invention, the inventor found that there are at least defects such as large mud content, unstable quality and unreasonable proportioning in the prior art.

Method used

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  • Stability control process for C3A content of road clinker discharged from kiln
  • Stability control process for C3A content of road clinker discharged from kiln
  • Stability control process for C3A content of road clinker discharged from kiln

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Embodiment Construction

[0037] Preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0038] According to an embodiment of the present invention, a process for stably controlling the content of C3A in the kiln road clinker is provided, including:

[0039] a. When the material is closed, the mixing is reduced; the road clinker is cleaned and dried after cleaning to reduce the mud content; step a also includes:

[0040] Before the limestone enters the factory, the mud content of the limestone is controlled by inspecting CaO, SiO2 and silicon oxide according to on-site sampling inspection;

[0041] During the production of road clinker, the limestone shall be confirmed in each shift, and samples shall be taken for inspection and analysis;

[0042] Strengthen on-site monitoring, and inspect the incomin...

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Abstract

The invention discloses a stability control process for the C3A content of road clinker discharged from a kiln. The stability control process comprises the following steps: reducing mixing during material leveling; cleaning and drying the road clinker to reduce the mud content; additionally arranging an air pipe on a poking site to ensure material discharging smoothness and improve calcination quality; regulating the proportion of the road clinker, wherein the regulated road clinker comprises the following components in parts by weight: 3.2 parts of C3A, 50.22 parts of CaO, 1.28 parts of MgO, 12.8 parts of SiO2, 2.5 parts of Al2O3 and 3.7 parts of Fe2O3. According to the stability control process for the C3A content of the road clinker discharged from the kiln, the defects of high mud content, instable quality, unreasonable proportion and the like in the prior art can be overcome, and the advantages of low mud content, stable quality and reasonable proportion can be achieved.

Description

technical field [0001] The invention relates to the technical field of cement processing, in particular to a process for stably controlling the content of C3A in kiln-exiting road clinker. Background technique [0002] C 3 A, that is, tricalcium aluminate, which is characterized by high heat of hydration and fast hydration reaction. If C in cement 3 If A is too high, it will cause the concrete to collapse too quickly when it is mixed into concrete, which will easily cause false coagulation. Seriously affect the durability of concrete. Road portland cement is mostly used in road construction, especially in the construction of some highways or airport runways, which have particularly strict requirements on concrete. Therefore, the road portland cement standard GB13693-2005 stipulates that C in road cement clinker 3 A content is less than or equal to 5%. And in terms of engineering, the stability of quality is very important. [0003] The 1# production line was built in 19...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/02
Inventor 张芳黄小青江英廖双双黄丽霖
Owner GUANGXI YUFENG CEMENT
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