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Grinding aid feeding method

A feeding method and technology of grinding aid, which are applied in the field of chemical building materials, can solve the problems of difficulty in adjusting the formula of cement grinding aid, uneven mixing of grinding aid and clinker, etc. The effect of promoting the mixed state

Inactive Publication Date: 2015-08-12
襄阳海螺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a grinding aid feeding method to improve the technical problems that it is difficult to adjust the formula of cement grinding aid and the uneven mixing of grinding aid and clinker

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A, prepare triethanolamine grinding aid mother liquor by conventional method;

[0018] B. Dilute the grinding aid mother liquor triethanolamine and water according to different volume ratios to obtain a diluent;

[0019] C. The diluent is added to the small grinding system of the laboratory, and the cement used is P.O32.5 cement of Esheng Cement Plant, clinker (95%), and gypsum (5%).

[0020] The performance index results of the tested cement after grinding are shown in Table 1.

[0021] Performance index of cement after table 1 grinding (grinding aid mother liquor triethanolamine: water)

[0022]

Embodiment 2

[0024] A, prepare polycarboxylate grinding aid mother liquor by conventional method;

[0025] B. Dilute the polycarboxylate grinding aid mother liquor and water according to different ratios by volume (1:10 to 1:100) to obtain a dilution;

[0026] C. The diluent is added to the small grinding system of the laboratory, and the cement used is P.O32.5 cement of Esheng Cement Plant, clinker (95%), and gypsum (5%).

[0027] The performance index results of the tested cement after grinding are shown in Table 2.

[0028] Performance index of cement after table 2 grinding (grinding aid mother liquor polycarboxylate: water)

[0029]

[0030] It can be seen from the above examples that after the technology of the present invention is adopted, the grinding aid mother liquor and the solvent are stirred to obtain a low-concentration grinding aid, and the dispersed grinding aid molecules are more likely to attach to the new surface of the powder, maintaining the dispersion of the partic...

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Abstract

The present invention belongs to the technical field of chemical building materials, and particularly relates to a grinding aid feeding method. In the prior art, the cement grinding aid formula is difficultly adjusted and the grinding aid and the clinker are not uniformly mixed. The technical problem solved by the present invention is to provide a grinding aid feeding method so as to solve the technical problems in the prior art. The grinding aid feeding method comprises: A, preparing a grinding aid mother liquor; B, mixing the grinding aid mother liquor and a solvent according to a volume part ratio of 1:0.1-100 to obtain a mixed solution; and C, adding the mixed solution to a cement ball mill. According to the present invention, the grinding aid is dissolved in the solvent, the complete mixing is achieved under the stirring, and the low-concentration grinding aid has the large volume and is more and better attached on the newly-generated surface of the powder, such that the particle dispersion is maintained, and the coalescence and aggregation between the particles is prevented so as to increase the work machine-hour of the equipment.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials, and in particular relates to a grinding aid feeding method. Background technique [0002] In the grinding system, grinding aids are used to increase the table time in order to improve the grinding effect. In the actual use process, the liquid grinding aid directly flows into the mill through the spiral barrel of the grinding head along with the pipeline. Since the grinding aid can only be dispersed on a small area, it cannot be mixed evenly, and the effect of the grinding aid is not fully exerted. The traditional way of adding is to directly add the grinding aid after metering, and there is a problem of uniform mixing between a small part of the grinding aid and a large amount of clinker. Especially when the working conditions of cement mills in cement enterprises or the various mineral components of cement change, it is difficult to adjust the formula of cement grinding aids...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/52
Inventor 张大康龙卫红冯方波明金龙
Owner 襄阳海螺新材料科技有限公司
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