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Method for grinding cement admixture and grinding aid for cement admixture

A technology of admixtures and grinding aids, applied in the field of grinding aids for cement admixtures, can solve the problems of inability to biochemically process, waste of resources, and high energy consumption, achieve comprehensive utilization of low-cost resources, realize comprehensive utilization of resources, and improve materials The effect of liquidity

Active Publication Date: 2019-12-27
湖南昌迪环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The total amount of wastewater in the country is about 800,000 tons / year (in terms of 50% concentration), and the COD is high, so it cannot be directly treated by biochemical treatment
The currently widely used incineration method not only has a large investment and energy consumption, but also has a certain environmental impact, and it is also a waste of resources.

Method used

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  • Method for grinding cement admixture and grinding aid for cement admixture
  • Method for grinding cement admixture and grinding aid for cement admixture
  • Method for grinding cement admixture and grinding aid for cement admixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment SA1

[0060] Examples SA1-SA5

[0061] Liquid A was mixed with slag (Masteel Group) and fly ash (Anhui Lu'an Power Plant) in different weight ratios for grinding treatment. The specific conditions and results are shown in Table 1 and Table 2, respectively.

[0062] Table 1: Slag grinding conditions and results of Comparative Example DA1 and Examples SA1-SA5

[0063]

[0064] Table 2: Fly Ash Grinding Conditions and Results of Comparative Example DA1 and Examples SA1-SA5

[0065]

[0066]

[0067] As can be seen from the results in Table 1-2: 1. After adding saponification waste lye, the fluidity of all materials increases; 2. After adding saponification waste lye, the 45 micron sieve of all materials decreases; 3. Add saponification waste After the lye, the specific surface area of ​​the materials in Examples SA1-SA5 all increases, but excessive addition will greatly improve the fluidity of the material, reduce the friction between the material and the grinding medium, and...

Embodiment SB1

[0070] The liquid A was used as a grinding aid and mixed with slag and fly ash at a ratio of 0.1% by weight for grinding treatment. The specific conditions and results are shown in Table 3-4.

Embodiment SB2

[0072] Add sulfuric acid to liquid A to adjust the pH value to 10, then use it as a grinding aid, and mix slag and fly ash in the proportion of 0.1% by weight for grinding treatment. The specific conditions and results are shown in Table 3-4.

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Abstract

The invention provides a cement mixture grinding method and a cement mixture grinding aid. The method includes: subjecting a to-be-grinded cement mixture and the cement mixture grinding aid to grinding treatment together; specifically, the cement mixture grinding aid contains waste saponification lye generated in preparation of cyclohexanone by cyclohexane oxidation. The cement mixture grinding method provided by the invention can take the waste saponification lye generated in preparation of cyclohexanone by cyclohexane oxidation as the grinding aid for cement mixture grinding.

Description

technical field [0001] The invention relates to a method for grinding cement admixture and a grinding aid for cement admixture. Background technique [0002] In order to improve cement performance, adjust cement strength grade, increase cement production, etc., artificial or natural mineral materials are added, which is called cement mixture. Most of the currently used cement mixtures are industrial waste residues. Mixed materials are usually divided into two categories: active mixed materials and inactive mixed materials according to their different properties, among which active mixed materials are used in the largest amount. Commonly used active mixed materials include granulated blast furnace slag, pozzolanic mixed materials and fly ash, etc., while inactive mixed materials include fine powder ground from quartzite, sandstone, etc. In the production process, the grinding process consumes a lot of energy, and the utilization rate of energy is extremely low, resulting in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/52C04B24/00C04B103/52
CPCC04B7/52C04B24/001C04B40/0039C04B2103/52C04B2103/12C04B2103/0094C04B2103/50C04B2103/0068
Inventor 钱文斌蒋卫和屈铠甲刘佑君王兆祥杨浴钱泽萱
Owner 湖南昌迪环境科技有限公司
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