Composite mineralizer in use for calcinations of barium-copper cement

Abstract

The invention relates to a mineralizer for producing silicate cement, particularly to a roasting compound mineralizer for cement with main component barium and trace auxiliary component copper. In the invention, barium dregs and copper dregs are used as main raw material, their weight percentage is (wt.%): barium dreg 50-80, copper dreg 20-50.

Description

(1) Technical field [0001] The invention relates to a mineralizer in the production of Portland cement, in particular to a cement calcined composite mineralizer with barium as the main component and copper as a trace auxiliary component. (2) Background technology [0002] At present, cement manufacturers mostly use traditional fluorine-sulfur composite mineralizers, mainly composed of fluorite and gypsum, and have achieved certain results. However, this mineralizer has outstanding problems, mainly as follows: the reserves of high-grade fluorite deposits in my country are low, and the distribution of ore points is small, so the price is high, resulting in an increase in cement manufacturing costs; the fluoride ion in fluorite The volatilization of cement clinker under high-temperature calcination conditions not only causes serious pollution to the atmosphere, but also accelerates the corrosion of refractories lining the kiln, kiln system equipment and exhaust pipes due to its ...

AI Technical Summary

Problems solved by technology

[0004] In recent years, some cement manufacturers have used a single barium-containing component as a mineralizer, which has also achieved certain results, but the barium component only has the effect of activating the clinker mineral lattice, which has a certain effect on improving the clinker strength, but It cannot improve the flammability of raw materials, has no obvious effect on reducing firing temperature and energy consumption, and cannot increase the kiln output per hour