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Process for stably controlling C3A content in road clinker taking out of kiln

A stable control and road technology, applied in the field of cement processing, can solve the problems of unreasonable ratio, unstable quality, and large mud content, and achieve the effect of reasonable ratio, improved calcination quality, and large 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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  • Process for stably controlling C3A content in road clinker taking out of kiln
  • Process for stably controlling C3A content in road clinker taking out of kiln
  • Process for stably controlling C3A content in road clinker taking out of 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 process for stably controlling C3A content in road clinker taking out of a kiln. The process comprises the following steps: when materials are spread, reducing material mixing; cleaning the road clinker, drying after cleaning, and reducing silt content; additionally arranging an air duct in the material poking field, ensuring that the materials are fed smoothly, and improving the calcining quality; adjusting the ratio of the road clinker, wherein the road clinker comprises the following constituents in parts by weight after adjustment: 2.8 parts of C3A, 50.18 parts of CaO, 1.15 parts of MgO, 13.3 parts of SiO2, 2.8 parts of Al2O3, and 3.4 parts of Fe2O3. The process for stably controlling the C3A content road clinker taking out of the kiln, disclosed by the invention, can overcome the defects of high silt content, unstable quality and unreasonable ratio in the prior art, so as to achieve the advantages of low silt content, stable quality and reasonable ratio.

Description

technical field [0001] The invention relates to the technical field of cement processing, in particular to a process for stably controlling the C3A content in kiln-exit 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 1958 and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/02
Inventor 邓玉莲杨茂鑫陈柳锋韦庆凤陈平王椿廖燕萍王咏梅蒋红艳覃春玲古巧燕何惠张芳
Owner GUANGXI YUFENG CEMENT
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