Slag vertical mill grinding assisting activating agent and its compounding method

A technology of activator and vertical mill, which is applied in the field of basic material manufacturing, can solve the problem of less research on mineral powder grinding aids, and achieve the effect of low production cost

Active Publication Date: 2012-10-24
酒钢(集团)宏达建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on grinding aids is mainly aimed at the grinding of cement by ball mills. There is less research on grinding aids for slag powder, and even less research on special gr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to percentage by weight, take industrial salt 10%, urea 6%, triethanolamine 8%, glycerol 10%, concentration be 34% aluminum sulfate solution 12%, beet molasses 3%, concentration be 40% polycarboxylic acid 5% and water 46%; sequentially add industrial salt, urea, triethanolamine, glycerol, aluminum sulfate, beet molasses and polycarboxylic acid into water at a temperature of 20°C. After dissolving and stirring evenly, another raw material is added until all the raw materials are dissolved in water and stirred evenly to obtain the slag vertical mill grinding activator. When grinding slag powder, add the slag vertical mill grinding activator at 1.0‰ of the weight of the low-activity acidic slag, then add an appropriate amount of gypsum to the slag, and put it into the mill at the same time, and grind it to a surface area of ​​450m 2 / Kg of slag powder.

[0033] After testing, the 7-day activity index of the prepared slag micropowder is 81.5; the 28-day activity ...

Embodiment 2

[0035] By weight percentage, take industrial salt 11%, urea 3%, triethanolamine 12%, glycerol 12%, concentration be 8% of aluminum sulfate solution of 45%, beet molasses 5%, concentration be 40% polycarboxylic acid 6% and water 43%; sequentially add industrial salt, urea, triethanolamine, glycerol, aluminum sulfate, beet molasses and polycarboxylic acid into water at a temperature of 30°C. After dissolving and stirring evenly, another raw material is added until all the raw materials are dissolved in water and stirred evenly to obtain the slag vertical mill grinding activator. When grinding slag powder, add the slag vertical mill grinding activator at 1.0‰ of the weight of the low-activity acidic slag, and then add an appropriate amount of gypsum to the slag, and put it into the mill at the same time, and grind it to a surface area of ​​480m 2 / Kg S95 grade slag fine powder. The 7-day activity index of the slag powder is 83.4; the 28-day activity index is 100.1, and its techn...

Embodiment 3

[0037]According to percentage by weight, get industrial salt 12%, urea 4%, triethanolamine 10%, glycerol 15%, concentration be 10% of aluminum sulfate solution of 39%, beet molasses 6%, concentration be 40% polycarboxylic acid 8% and water 35%; sequentially add industrial salt, urea, triethanolamine, glycerol, aluminum sulfate, beet molasses and polycarboxylic acid into water at a temperature of 25°C. After dissolving and stirring evenly, another raw material is added until all the raw materials are dissolved in water and stirred evenly to obtain the slag vertical mill grinding activator. When grinding slag powder, add the slag vertical mill grinding activator at 1.0‰ of the weight of the low-activity acidic slag, then add an appropriate amount of gypsum to the slag, and put it into the mill at the same time, and grind it to a surface area of ​​470m 2 / Kg S95 grade slag fine powder. The 7-day activity index of the slag powder is 82.2; the 28-day activity index is 100.2, and i...

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PUM

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Abstract

The invention provides a slag vertical mill grinding assisting activating agent and its compounding method. The slag vertical mill grinding assisting activating agent is composed of, by weight percent: 10-12% of industrial salt, 3-6% of urea, 8-12% of triethanolamine, 10-15% of glycerol, 8-12% of an aluminum sulfate solution, 3-6% of beet molasses, 5-8% of polycarboxylic acid, and the balance a solvent. The method consists of: adding the industrial salt, the urea, the triethanolamine, the glycerol, the aluminum sulfate solution, the beet molasses, and the polycarboxylic acid into the solvent in order, fully dissolving each raw material when it is added, and conducting uniform stirring, then adding another raw material till all the raw materials are added into the solvent for dissolving, and mixing the mixture uniformly, thus obtaining the slag vertical mill grinding assisting activating agent, which can play a grinding assisting role and an activating role. By employing a compatible mode of chemical excitation and slag powder particle size distribution improvement, the slag vertical mill grinding assisting activating agent provided in the invention has an advantage complementary effect, not only adapts to low activity acidic slag, but also adapts to neutral and alkaline slag, and is applicable to both vertical mills and ball mills.

Description

technical field [0001] The invention belongs to the technical field of basic material manufacturing, and relates to a slag vertical mill grinding aid activator suitable for low-activity acid slag, and also relates to a compounding method of the grinding aid activator. Background technique [0002] With the gradual understanding of the performance, quality awareness and economic value of slag micropowder, granulated blast furnace slag high activity micropowder has become an indispensable component material in the process of preparing cement, high-strength high-performance and corrosion-resistant concrete. [0003] High-activity slag micropowder is mixed with Portland cement, and its dosage can reach 55-65% or higher, which reduces the dosage of clinker; as an admixture directly mixed into concrete, it can significantly improve the heat of hydration of concrete and reduce the amount of clinker. Improve the fluidity, workability, pumpability, impermeability, frost resistance, s...

Claims

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Application Information

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IPC IPC(8): C04B7/147C04B18/14C04B22/00
CPCY02P40/10Y02W30/91
Inventor 赵建清武学龙翟胜利王刚安银平
Owner 酒钢(集团)宏达建材有限责任公司
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