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Sulphate aluminum cement clinker and preparation method thereof and sulphate aluminum cement

A technology of sulphoaluminate cement and clinker, which is applied in clinker production, cement production, etc., can solve the problems of high firing temperature, achieve the effects of improving comprehensive performance, reducing mixing ratio, and significant economic benefits

Inactive Publication Date: 2016-06-01
HENAN JUNQIANG CEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of sulphoaluminate cement clinker, thus solve the problem in the prior art that the firing temperature of sulphoaluminate cement clinker is high

Method used

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  • Sulphate aluminum cement clinker and preparation method thereof and sulphate aluminum cement
  • Sulphate aluminum cement clinker and preparation method thereof and sulphate aluminum cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The sulphoaluminate cement clinker of this embodiment is made of admixture and the following raw materials in parts by weight: 20 parts of desulfurized gypsum, 35 parts of fly ash, 20 parts of kaolin, 10 parts of coal gangue, and 15 parts of bauxite; The admixture is composed of 20wt% potassium permanganate, 5wt% manganese dioxide and 75wt% barium sulfate, and the mass of the admixture is 0.03% of the total mass of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite.

[0032] The preparation method of the sulphoaluminate cement clinker of the present embodiment comprises the following steps:

[0033] 1) Dry the moisture of desulfurized gypsum, coal gangue and kaolin until the moisture is less than 2wt%; grind the mixture of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite, and add additional agent, pulverized until the sieve residue measured with a 0.45mm square hole sieve is 4wt%; after stirring and homogenizing, the homogenization coefficient is...

Embodiment 2

[0037] The sulphoaluminate cement clinker of this embodiment is made of admixture and the following raw materials in parts by weight: 25 parts of desulfurized gypsum, 30 parts of fly ash, 22 parts of kaolin, 8 parts of coal gangue, and 15 parts of bauxite; The admixture is composed of 25wt% potassium permanganate, 3wt% manganese dioxide and 72wt% barium sulfate, and the mass of the admixture is 0.02% of the total mass of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite.

[0038] The preparation method of the sulphoaluminate cement clinker of the present embodiment comprises the following steps:

[0039] 1) Dry the moisture of desulfurized gypsum, coal gangue and kaolin until the moisture is less than 2wt%; grind the mixture of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite, and add additional agent, pulverized until the sieve residue measured with a 0.45mm square hole sieve is 4wt%; after stirring and homogenizing, the homogenization coefficient is ...

Embodiment 3

[0043] The sulphoaluminate cement clinker of this embodiment is made of admixture and the following raw materials in parts by weight: 23 parts of desulfurized gypsum, 32 parts of fly ash, 25 parts of kaolin, 5 parts of coal gangue, and 10 parts of bauxite; The admixture is composed of 15wt% potassium permanganate, 5wt% manganese dioxide and 80wt% barium sulfate, and the mass of the admixture is 0.05% of the total mass of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite.

[0044] The preparation method of the sulphoaluminate cement clinker of the present embodiment comprises the following steps:

[0045]1) Dry the moisture of desulfurized gypsum, coal gangue and kaolin until the moisture is less than 2wt%; grind the mixture of desulfurized gypsum, fly ash, kaolin, coal gangue and bauxite, and add additional agent, pulverized until the sieve residue measured with a 0.45mm square hole sieve is 4wt%; after stirring and homogenizing, the homogenization coefficient is 4...

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Abstract

The invention discloses a sulphate aluminum cement clinker and a preparation method thereof. The sulphur aluminate cement clinker is prepared from, by weight, 20-25 parts of gypsum, 30-35 parts of pulverized fuel ash, 20-25 parts of kaolin, 5-10 parts of coal gangue, 10-15 parts of bauxite and an additive, wherein the additive is the mixture of potassium permanganate, manganese dioxide and barium sulfate, and the mass of the additive accounts for 0.02-0.05% of the total mass of the mixture of the gypsum, the pulverized fuel ash, the kaolin, the coal gangue and the bauxite. Compared with a sulphate aluminum cement clinker production process, the resource and energy consumption is low, the sintering temperature is low, and the recycling, reducing and harmless purposes of solid industrial waste residues are achieved.

Description

technical field [0001] The invention belongs to the technical field of cement clinker production, and in particular relates to a sulphoaluminate cement clinker and a preparation method thereof, namely sulphoaluminate cement. Background technique [0002] With the increasing requirements of industrial and civil buildings on concrete in terms of high strength, corrosion resistance, weathering resistance, self-compacting, shrinkage resistance, penetration resistance and alkali-aggregate reaction inhibition, green high performance concrete (GHPC) With the vigorous development of research and practice, active mineral admixtures other than cement have become one of the indispensable component materials of GHPC. Such active mineral admixtures have been called the sixth component of concrete. [0003] CN104909638A discloses a composite mineral admixture for concrete, comprising cement clinker, limestone powder, fly ash, mineral powder and silica fume, and its weight percentage is 15...

Claims

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Application Information

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IPC IPC(8): C04B7/32C04B7/36C04B7/42
CPCY02P40/121C04B7/32C04B7/36C04B7/424C04B7/425
Inventor 王根发孙淑芳王统
Owner HENAN JUNQIANG CEMENT CO LTD
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