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A low-cost production method of cement clinker

A production method, cement clinker technology, applied in cement production, etc., can solve the problems of large grinding table loss and high cost of cement clinker, and achieve the effects of reducing raw material costs, reducing mineral resource mining, and reducing machine wear rates

Active Publication Date: 2016-02-17
平阴山水水泥有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The raw materials for firing high-quality Portland cement clinker are limestone, sandstone, sulfuric acid slag, and bauxite; however, the use of these raw materials to prepare cement clinker has the problems of high cost and large grinding table loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-10

[0022] Table 1 (the stated parts are parts by weight):

[0023] ;

[0024] Raw materials are prepared according to Table 1; the cost of raw materials required for the preparation of 1 ton of cement clinker in the above comparative examples and embodiments is 8.2 yuan / ton of limestone, 44.94 yuan / ton of sandstone, 26.29 yuan / ton of converter slag, 16.85 yuan / ton of wet ash discharge, and 18.26 yuan / ton of Yellow River silt. / ton, iron tailings 26.89 / ton.

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Abstract

The invention relates to a production method of cement clinker, in particular to a low-cost production method of cement clinker. The ratio of raw materials on a dry basis used in the present invention is 79.89 to 82.47 parts of limestone, 3.11 to 5.4 parts of wet ash, 2.13 to 7.47 parts of Yellow River silt, 2.86 to 4.42 parts of converter slag, 2.81 to 6.17 parts of iron tailings, and 1.24 to 2.31 parts of sandstone. share. By making full use of waste such as Yellow River silt, converter slag, and wet ash discharged from power plants, the cost of raw materials has been reduced from an average of 19.75 yuan / ton of clinker to an average of 17.41-18.13 yuan / ton of clinker; a decrease of 1.62-2.34 yuan / ton of clinker; The wear rate of the machine can save 285,000 yuan per year for the raw material grinding roller skin and disk welding repair wire; the working efficiency of the raw material grinding table can be increased by 20 tons / hour; the annual estimated cost savings is nearly 10 million yuan.

Description

technical field [0001] The invention relates to a production method of cement clinker, in particular to a low-cost production method of cement clinker. Background technique [0002] The raw materials for firing high-quality Portland cement clinker are limestone, sandstone, sulfuric acid slag, and bauxite; however, the use of these raw materials to prepare cement clinker has the problems of high cost and large wear of the grinding table. Taking Pingyin Shanshui Cement Co., Ltd. as an example, the average cost of raw materials is 19.27 yuan / ton of clinker; the raw material mill (Ubm50.4) roller skin and grinding plate are welded twice a year, and the welding wire is 2 tons, 95,000 yuan per ton. The total welding wire is 9.5*2*2=380,000 yuan. Contents of the invention [0003] The main component of sandstone is SiO2, and the SiO2 content in the Yellow River silt is about 70.0-72.5%. In order to reduce the cost, the inventor tries to replace the sandstone with the Yellow Rive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/24
CPCY02P40/10
Inventor 徐效国王廷来孙乐彬李荣健
Owner 平阴山水水泥有限公司
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