Slag grinding aid

A grinding aid and slag technology, applied in the field of admixtures, can solve the problems of high energy consumption and low slag grinding efficiency, and achieve the effects of improving grinding efficiency, avoiding powder encapsulation, and improving grindability.

Inactive Publication Date: 2014-05-14
柳州宝能建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a slag grinding aid to solve the problems of low slag grinding efficiency and high energy consumption

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] The slag grinding aid (1 ton) in the present embodiment includes the raw materials of following weight content: 500 kilograms of polyester polyols, 100 kilograms of molasses, 50 kilograms of calcium lignosulfonate, 50 kilograms of glycerol, and its configuration method is Weigh the calcium lignosulfonate according to the above weight and add it to the reaction kettle, add water and stir for 15 minutes to make the calcium lignosulfonate fully dissolve in the water, then add molasses into the reaction kettle according to the amount, control the temperature at 50°C, and keep the temperature constant Stir for 15 minutes, then add glycerol into the reaction kettle according to the amount, stir for 10 minutes, finally add polyester polyol into the reaction kettle according to the amount, stir for 15 minutes, and finally form a uniform mixed liquid, which is the method of the present invention. Liquid cement grinding aid.

[0019] Under the same test conditions as in Table 2, ...

Embodiment 2

[0023] The slag grinding aid (1 ton) in the present embodiment includes the following raw materials by weight: 400 kilograms of dipropylene glycol, 120 kilograms of molasses, 60 kilograms of calcium lignosulfonate, and 40 kilograms of glycerol. The configuration method is Weigh the calcium lignosulfonate according to the above weight and add it to the reaction kettle, add water and stir for 15 minutes to make the calcium lignosulfonate fully dissolve in the water, then add molasses into the reaction kettle according to the amount, control the temperature at 50°C, and keep the temperature constant Stir for 15 minutes, then add glycerol into the reaction kettle according to the amount, stir for 10 minutes, finally add dipropylene glycol into the reaction kettle according to the amount, stir for 15 minutes, and finally form a uniform mixed liquid, which is the method of the present invention. Liquid cement grinding aid.

[0024] Under the same test conditions as in Table 2, each ...

Embodiment 3

[0028] The slag grinding aid (1 ton) in the present embodiment includes the following raw materials by weight: 400 kilograms of polyether polyols, 200 kilograms of tripropylene glycol, 50 kilograms of molasses, 40 kilograms of calcium lignosulfonate, glycerol 50 kilograms, its disposition method is to take calcium lignosulfonate by the above-mentioned weight and add in the reactor, add water and stir for 15 minutes, calcium lignosulfonate is fully dissolved in water, then adds molasses according to the amount in the reactor, will Control the temperature at 50°C, stir at constant temperature for 15 minutes, then add glycerol into the reaction kettle according to the amount, stir for 10 minutes, finally add polyether polyol and triglyceride into the reaction kettle according to the amount, stir for 15 minutes, and finally Forming a uniform mixed liquid is the liquid cement grinding aid described in the present invention.

[0029] Under the same test conditions as in Table 2, eac...

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PUM

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Abstract

The invention discloses a slag grinding aid, which comprises the following components in percentage by weight: 40-60 percent of polymeric polylol, 5-15 percent of molasses, 2-8 percent of calcium lignosulphonate, 4-6 percent of glycerol and the balance of water. Due to the adoption of the slag grinding aid, the grinding efficiency of slag and the machine-hour yield of a grinder are increased, and the effect of improving mineral powder activity index can be enhanced. The slag containing a large quantity of vitreous bodies is ground separately, and the slag grinding aid is doped, so that the grinding efficiency can be increased by 10-15 percent, the energy consumption is lowered by 10-15percent, the 7-day activity index of slag fine powder obtained by grinding is increased by 4-6 percent, and the 28-day activity index is increased by 2-4 percent; and after slag mineral powder is added into cement, the cement mortar flowing degree is increased by 5-10 percent.

Description

technical field [0001] The invention relates to the technical field of cement manufacture, in particular to an admixture used in the grinding of solid particle materials. Background technique [0002] Granulated blast furnace slag (referred to as slag) is a molten material mainly composed of calcium silicate and calcium aluminate discharged during ironmaking, and is a granular active material formed after water quenching and rapid cooling. It generally contains 80-90% glass phase, and its main mineral is dicalcium silicate (C 2 S), calcium aluminate feldspar (C 2 AS), magnesian feldspar (C 2 MS 2 ), anorthite (CAS 2 )Wait. The chemical composition of slag is generally CaO 35-45%, SiO 2 25~40%, Al 2 o 3 6-15%, FeO 0.5-1%. Quality coefficient of slag (CaO+MgO+AL 2 o 3 ) / (SiO 2 +MnO+TiO 2 ) is larger, the activity of slag is higher, that is, CaO, Al 2 o 3 High content, SiO 2 Slag with low content has high activity. It is a "low calcium and high silicon" clin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/00C08L67/00C08L67/04C08L33/08C08L5/00C08L97/00C08K5/053C08K5/06C09K3/14
Inventor 刘超
Owner 柳州宝能建材科技有限公司
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