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Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof

A technology for granulating blast furnace slag and grinding aids, which is applied in solid waste management, sustainable waste treatment, cement production, etc., can solve the problems of insignificant slag grinding effect, no improvement in slag performance, and restrictions on popularization and application. Improve the distribution and shape of powder particles, low cost, simple processing and preparation

Inactive Publication Date: 2013-02-13
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the grinding aids researched and used at home and abroad are expensive, the source is short, the dosage is too large, and the effect on the slag grinding aid is not obvious, and the slag performance has no or little improvement effect, so the general application is limited.

Method used

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  • Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0021] First, add 1 kg of sodium tripolyphosphate and 2 kg of sodium acetate into 45 kg of water, heat and stir slightly, the temperature is 30°C, after completely dissolving, add 2 kg of sodium sulfate into the solution, continue heating, the temperature is not When the temperature exceeds 50°C, stirring and dissolving are performed. Finally, 20 kilograms of triethanolamine, 18 kilograms of trimixed alcohol, 7 kilograms of glycerol and 5 kilograms of molasses were added to the solution and stirred evenly, and then cooled and filtered.

Embodiment 2

[0023] First, add 2 kg of sodium tripolyphosphate and 2 kg of sodium acetate into 42 kg of water, heat and stir slightly, the temperature is 30 ° C, after completely dissolving, add 1 kg of sodium sulfate into the solution, continue heating, the temperature is not When the temperature exceeds 50°C, stirring and dissolving are performed. Finally, 25 kilograms of triethanolamine, 17 kilograms of trimixed alcohol, 8 kilograms of glycerol and 6 kilograms of molasses were added to the solution and stirred evenly, and then cooled and filtered.

Embodiment 3

[0025] First, add 2 kg of sodium tripolyphosphate and 2 kg of sodium acetate into 50 kg of water, heat and stir slightly, the temperature is 30 ° C, after completely dissolving, add 4 kg of sodium sulfate into the solution, continue heating, the temperature is not When the temperature exceeds 50°C, stirring and dissolving are performed. Finally, 30 kilograms of triethanolamine, 20 kilograms of trimixed alcohol, 10 kilograms of glycerol and 5 kilograms of molasses are added to the solution and stirred evenly, and then cooled and filtered.

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Abstract

The invention relates to liquid composite grinding aid for granulated blast-furnace slag and a preparation method thereof. The grinding aid is prepared by triethanolamine 1-30 parts, mixed alcohol 15-20 parts, glycerin 5-10 parts, molasses 5-10 parts, sodium acetate 1-10 parts, sodium tripolyphosphate 1-10 parts, sodium sulfate 1-10 parts and water 40-50 parts. The liquid composite grinding aid is low in toxicity, non-volatile, stable in source, sufficient in supply, simple in processing and preparation and low in cost. Can improve distribution and morphology of powder particles after doped into the granulated blast-furnace slag, has no adverse effects on mineral powder quality, has the good advantages of improving the yield and the mineral powder quality, and simultaneously reduces energy consumption greatly. The liquid composite grinding aid is stable in performance, low in price and high in cost performance, wide in adaptability and low in admixture amount, improves the grinding effect, increases specific surface area of the mineral powder and improves activity index of the mineral powder under the condition of same grinding time.

Description

technical field [0001] The invention belongs to the technical field of admixtures for the grinding process of granulated blast furnace slag, and in particular relates to a liquid composite grinding aid for granulated blast furnace slag and a preparation method thereof. Background technique [0002] At present, my country's iron and steel output is about 350 million tons. Based on the domestic average production of 1 ton of pig iron produces 0.50 tons of slag, my country's slag output is about 175 million tons. Therefore, how to utilize slag solid waste has been a subject that Chinese metallurgists have been studying for many years, and it is also a realistic problem that should be solved emphatically in developing circular economy and building a conservation-minded and environment-friendly society. For a long time, slag has been mostly used as cement admixture, and it is ground together with cement clinker. The fineness of slag is generally 250m3 in terms of specific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/14C04B7/147
CPCY02P40/10Y02W30/91
Inventor 孙小巍李殿平陈彦文潘文浩礼航刘阳马健岩
Owner SHENYANG JIANZHU UNIVERSITY
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