Composite mineralizer in use for calcinations of barium-copper cement

A mineralizer and cement technology, applied in the direction of cement production, etc., can solve the problems of no obvious effect on reducing energy consumption, inability to improve the flammability of raw materials, and inability to increase the output of kilns, etc., so as to reduce environmental pollution and equipment corrosion , shorten the firing time, and accelerate the solid-phase reaction speed

Inactive Publication Date: 2005-01-12
UNIV OF JINAN
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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

Method used

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Examples

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Example Embodiment

[0016] The present invention applies the barium-copper composite mineralizer to the process of manufacturing Portland cement. Specific embodiments and effects are as follows.

[0017] 1. The chemical compositions of barium slag and copper slag used in this example are shown in Table 1. Of course, the barium slag and copper slag of the present invention are not limited to the following chemical compositions.

[0018] Table 1: Chemical composition of barium slag and copper slag w%

[0019] Raw material Loss SiO 2 Al 2 O 3 Fe 2 O 3 CaO MgO SO 3 BaO CuO

[0020] Barium slag 15.22 18.10 5.77 1.79 4.73 - 15.51 37.75

[0021] Copper slag -2.20 34.48 7.41 40.36 11.83 3.64 -- -- 0.7

[0022] 2. The chemical components of the cement raw meal and clinker used in this example are shown in Table 2 and Table 3.

[0023] Table 2: Raw meal chemical composition w%

[0024] Element

[0025] Table 3: Chemical compositi...

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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 ...

Claims

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Application Information

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IPC IPC(8): C04B7/02C04B7/19C04B7/42
CPCY02P40/10
Inventor 芦令超常钧程新刘福田叶正茂
Owner UNIV OF JINAN
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