A preparation process of high-grade cement based on modified fluorine gypsum

Abstract

The invention discloses a high-grade cement preparation process based on modified fluorine gypsum, and relates to the technical field of cement production, including: crushing and grinding cement raw materials to form a mixture in proportion; starting the raw material grinding to make cement raw meal powder; Pour the cement raw meal powder into the mixer for mixing; collect the angular velocity data of the two motors of the mixer, and when the fluctuation values ​​of the angular velocity of the two motors are less than the first preset value, according to the angular velocity data of the two motors at this time Solve the difference; when the difference is less than the second preset value, it is judged that the raw meal powder is evenly stirred and calcined to make cement clinker; the cement clinker, modified fluorogypsum and the mixed material are ground to a preset fineness. Cement is obtained; the present invention characterizes the uniformity of cement raw meal powder by solving the angular velocity difference between the two motors after solving the angular velocity stability, which is convenient for the calcination in the next step, can effectively improve the utilization rate of energy and time, and improve production The quality of the cement that comes out.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a process for preparing high-grade cement based on modified fluorogypsum. Background technique [0002] Cement is a powdery hydraulic inorganic cementitious material, which can be hardened in the air or better hardened in water after adding water and stirring, and can firmly bond materials such as sand and stone together. The mixture of pozzolan is very similar to modern lime pozzolan cement. It is used to cement concrete made of crushed stone. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water. For a long time, it has been used as an important glue. It is widely used in civil engineering, water conservancy, national defense and other projects. [0003] Cement production can be divided into dry method (including semi-dry method) and wet method (including semi-wet method) depending on the preparation method of ra...

AI Technical Summary

Problems solved by technology

The dry method refers to the method of drying and grinding the raw materials at the same time, or first drying and grinding the raw material powder and then feeding it into the dry kiln to calcinate the clinker. The main advantage of the dry method is low heat consumption, and the disadvantage is The composition of the raw material is not easy to be uniform, and the power consumption is high

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