Environment-friendly cement and production method thereof

A technology of green cement and cement clinker, which is applied in cement production, etc., can solve the problems of large amount of cement slag material, large amount of dust in the production process, and low output of a single machine, so as to reduce the amount of use, improve the degree of homogenization, and increase the amount of blending Effect

Active Publication Date: 2014-02-26
广西云燕特种水泥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of green cement and its production method. The method has a large amount of cement slag material, which overcomes the shortcomings of the traditional cement production process, such as low single-machine output, high energy consumption, large dust in the production process, and large equipment investment.

Method used

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  • Environment-friendly cement and production method thereof
  • Environment-friendly cement and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 90 parts of thermal power plant waste slag and 10 parts of crushed limestone are put into the homogenization field, homogenized storage, pumped from the homogenization field into the high-efficiency energy-saving dryer, and the heat generated by coal combustion is used to rotate and dry to a moisture content of 3-5. %, transported from the hoist at the tail of the dryer into the homogenization bin; according to the ratio of the weight fraction of the following materials:

[0028] 60 for dry mixed material; 40 for cement clinker;

[0029] Gypsum 5; Triethanolamine 0.03;

[0030] Yuanming powder 3, aluminum hydroxide 2;

[0031] Add it into the ball mill, spray 0.5MPa high-pressure water into the ball mill, so that the temperature of the ball mill process is controlled at 130°C, and the material coming out of the grinding head of the ball mill, that is, cement, is transported into the finished product homogenization bin by a hoist, and passed through the homogenization p...

Embodiment 2

[0033] Put 80 parts of manganese and manganese alloy factory waste slag and 20 parts of crushed limestone into the homogenization field, homogenize the reserve, use a pump to add from the homogenization field to the high-efficiency energy-saving dryer, and use the heat generated by coal combustion to rotate and dry to moisture 3 to 5%, transported from the hoist at the tail of the dryer into the homogenization bin; according to the ratio of the weight of the following materials:

[0034] Dry mixed material is 50; cement clinker is 32;

[0035] Gypsum 5; Triethanolamine Phosphate 0.05;

[0036] alum3.

[0037] Put it into the ball mill, spray 1MPa high-pressure water into the ball mill, so that the temperature of the ball mill process is controlled at 100-102°C, and the material that comes out of the grinding head of the ball mill, that is, cement, is transported into the finished product homogenization bin by a hoist, and passed through The air generated at the bottom of the...

Embodiment 3

[0039] Put 85 parts of iron and steel plant waste slag and phosphoric acid plant waste slag and 15 parts of crushed limestone into the homogenization field for homogenization and storage, and pump them from the homogenization field into the high-efficiency energy-saving dryer, and use the heat generated by coal combustion to rotate and dry to The moisture content is 3-5%, and it is transported into the homogenization bin from the elevator at the tail of the dryer; according to the proportion of the weight of the following materials

[0040] Dry mixed material is 55; cement clinker is 37;

[0041] Gypsum 4; Diethanolamine Phosphate 0.04;

[0042] alum4.

[0043] Put it into the ball mill, spray 0.8MPa high-pressure water into the ball mill, so that the temperature of the ball mill process is controlled at 108-112°C, and the material coming out of the grinding head of the ball mill, that is, cement, is transported into the homogenization bin of the finished product by the eleva...

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Abstract

The invention discloses environment-friendly cement. The raw materials include various industrial waste residues, limestone, cement clinker, gypsum, a grinding aid and an excitation substance. The environment-friendly cement is characterized in that the weight parts of the raw materials are as follows: 50-60 parts of admixture, 32-40 parts of cement clinker, 4-8 parts of gypsum, 0.03-0.05 part of grinding aid and 3-5 parts of excitation substance. Since the production process of the environment-friendly cement adopts a low-temperature mechanical-chemical co-excitation technology, the mixing amount of the admixture is large, multiple industrial waste residues can be used as raw materials, the raw materials are widely available, the cost is low, a great quantity of industrial waste residues can be consumed, the waste is turned into wealth, and the performance of the obtained product is remarkably improved from the quality index.

Description

technical field [0001] The invention relates to a kind of green cement, specifically a kind of cement with a large amount of slag material, and its production process is more energy-saving and lower in cost than the traditional one. The invention also provides a production method of this cement. Background technique [0002] Cement is a kind of inorganic gel material that can be hardened in air or better hardened in water after being stirred with water, and can firmly bind sand, stone and other materials together. For a long time, cement, as an important cementitious material, has been widely used in civil engineering, water conservancy, national defense and other projects. With the growth of my country's economy, the country has increased the construction of infrastructure and the development of real estate, the demand for cement is increasing. In 2011, the output of my country's cement was about 2.1 billion tons, ranking first in the world. my country is a big cement prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24
CPCY02P40/10
Inventor 黄芳杨毅龙志谋许建兴
Owner 广西云燕特种水泥建材有限公司
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