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Cement composite grinding aid

A cement grinding aid and the technology of grinding aid, which are applied in the field of cement manufacturing, can solve the problems of inability to match cement raw materials and effective grinding aid ingredients together, unable to achieve the best effect of cement grinding aid, and insignificant grinding aid effect. , to achieve significant enhancement and grinding effects, improve the pore structure of cement stone, and improve the quality of cement

Inactive Publication Date: 2015-08-19
湖州华仑助剂科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Cement is one of the most commonly used building materials and is widely used in civil engineering, hydraulic, national defense and other projects. During the processing of cement, it needs to be ground into powder with a mill. According to the existing cement grinding process, the mill Over-grinding often occurs in the warehouse, resulting in electrostatic adsorption and encapsulation. In order to solve this problem, grinding aids are usually added during the cement grinding process. The existing grinding aids have the following problems: high cost, low It is very easy to cause dust to fly and deteriorate the production environment, and the grinding aid effect is not obvious, thus affecting the performance of cement. The existing cement grinding aids have different components and relatively single functions, which only solve a certain problem in cement production. Problems in the aspect of cement raw materials and effective grinding aids cannot be combined together, so that the best effect of cement grinding aids cannot be achieved, and the chloride ion or alkali in the existing cement grinding aids brings certain harm

Method used

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  • Cement composite grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 4 kg of sodium metasilicate pentahydrate to 26 kg of water and stir until completely dissolved, heat to a temperature of 25°C, then add 5 kg of sodium hexametaphosphate to the solution of sodium metasilicate pentahydrate, and continue heating to a temperature of 45°C , stirring and dissolving, finally adding 20 kg of polyol amines, 20 kg of polyols, 10 kg of molasses, and 10 kg of lignosulfonate into the solution, stirring evenly until completely dissolved, cooling, and filtering. Among them, the polyol amine is composed of 11.1 kg of triethanolamine and 8.9 kg of triisopropanolamine, the polyol is composed of 11.1 kg of glycerol, 3.3 kg of trimethylolethane, and 5.6 kg of pentaerythritol; lignin The sulfonate consists of 2.5 kg of calcium lignosulfonate, 2.5 kg of sodium lignosulfonate, and 5 kg of magnesium lignosulfonate.

Embodiment 2

[0028] Add 2 kg of sodium metasilicate pentahydrate to 20 kg of water and stir until completely dissolved, heat to a temperature of 25°C, then add 7 kg of sodium hexametaphosphate to the solution of sodium metasilicate pentahydrate, and continue heating to a temperature of 45°C , stirring and dissolving, finally adding 10 kg of polyol amines, 30 kg of polyols, 5 kg of molasses, and 15 kg of lignosulfonate into the solution and stirring until completely dissolved, then cooling and filtering. Among them, the polyol amine is composed of 6.7 kg of triethanolamine and 3.3 kg of triisopropanolamine, and the polyol is composed of 25 kg of glycerol, 2.5 kg of trimethylolethane, and 2.5 kg of pentaerythritol; The sulfonate consists of 3.75 kg of calcium lignosulfonate, 3.75 kg of sodium lignosulfonate, and 7.5 kg of magnesium lignosulfonate.

Embodiment 3

[0030] Add 6 kg of sodium metasilicate pentahydrate to 30 kg of water and stir until completely dissolved, heat to a temperature of 25°C, then add 3 kg of sodium hexametaphosphate to the solution of sodium metasilicate pentahydrate, and continue heating to a temperature of 45°C , stirring and dissolving, finally adding 30 kg of polyol amines, 10 kg of polyols, 15 kg of molasses, and 5 kg of lignosulfonate into the solution and stirring until completely dissolved, then cooling and filtering. Among them, the polyol amine is composed of 15 kg of triethanolamine and 15 kg of triisopropanolamine, and the polyol is composed of 6.25 kg of glycerol, 1.25 kg of trimethylolethane, and 2.5 kg of pentaerythritol; The sulfonate consists of 1.25 kg of calcium lignosulfonate, 1.25 kg of sodium lignosulfonate, and 2.5 kg of magnesium lignosulfonate.

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Abstract

The invention discloses a cement composite grinding aid which is characterized by comprising the following components in parts by weight: 10-30 parts of polyol amine, 10-30 parts of polyol, 5-15 parts of molasses, 5-15 parts of lignosulphonate, 2-6 parts of sodium metasilicate pentahydrate, 3-7 parts of sodium hexametaphosphate and 20-30 parts of water. The cement composite grinding aid disclosed by the invention is stable in raw material source, environmental-friendly, low in toxicity and easy to produce, and ensures that the components achieve preferable synergistic effect by confirming the components and a content range, thus optimizing the efficacy of a powder grinding process and improving the power granule distribution and morphology of cement without adverse effect on cement quality. The cement composite grinding aid disclosed by the invention has the advantages of preferably increasing the yield increase and enhancing the cement quality and has the effects of saving the electricity consumption, improving the powder efficiency and the cement strength, reducing the free calcium oxide contained in the cement and enhancing the early strength and later strength of the cement.

Description

technical field [0001] The invention belongs to the technical field of cement manufacture, and in particular relates to an enhanced cement grinding aid. Background technique [0002] Cement is one of the most commonly used building materials and is widely used in civil engineering, hydraulic, national defense and other projects. During the processing of cement, it needs to be ground into powder with a mill. According to the existing cement grinding process, the mill Over-grinding often occurs in the warehouse, resulting in electrostatic adsorption and encapsulation. In order to solve this problem, grinding aids are usually added during the cement grinding process. The existing grinding aids have the following problems: high cost, low It is very easy to cause dust to fly and deteriorate the production environment, and the grinding aid effect is not obvious, thus affecting the performance of cement. The existing cement grinding aids have different components and relatively sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
Inventor 李琪
Owner 湖州华仑助剂科技有限公司
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