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A kind of composite cement grinding aid prepared based on BDO waste tar and its preparation method and application

A compound cement and grinding aid technology, applied in the field of cement grinding admixture, can solve the problem of high cost of raw materials, achieve the effect of reducing production cost and sales cost, and broaden the prospect of popularization and use

Active Publication Date: 2021-08-27
SINOPEC CHANGCHENG ENERGY CHEM NINGXIA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the shortcomings of existing cement grinding aid raw material cost is high, to provide a kind of use industrial by-products or industrial waste to replace triethanolamine, prepare a kind of based on BDO waste tar, PTMEG as the main grinding aid component low Cost cement grinding aid and preparation method thereof

Method used

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  • A kind of composite cement grinding aid prepared based on BDO waste tar and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: A composite cement grinding aid prepared based on BDO waste tar, in terms of mass percentage: 20% BDO tar, 13% triethanolamine, 10% glycerin, 5% PTMEG, 10% sucrose, 42% water. The preparation method is as follows: first completely dissolving sucrose in water, then adding other components one by one, stirring and mixing uniformly to obtain the liquid cement grinding aid.

Embodiment 2

[0011] Example 2: A composite cement grinding aid prepared based on BDO waste tar, in terms of mass percentage: 25% BDO tar, 15% triethanolamine, 10% sucrose, 5% PTMEG, 40% water. The preparation method is as follows: first completely dissolving sucrose in water, then adding other components one by one, stirring and mixing uniformly to obtain the liquid cement grinding aid.

Embodiment 3

[0012] Example 3: A composite cement grinding aid prepared based on BDO waste tar, in terms of mass percentage: 25% BDO tar, 12% triethanolamine, 8% PTMEG, 10% sucrose, 43% water. The preparation method is as follows: first completely dissolving sucrose in water, then adding other components one by one, stirring and mixing uniformly to obtain the liquid cement grinding aid.

[0013] The preparation of the composite cement grinding aid uses cement grinding, and the grinding equipment is a ball mill, and 5 kg of grinding materials are fed each time. The clinker, gypsum and limestone are respectively crushed to less than 20 mm by jaw crusher, and the clinker, gypsum, limestone, slag and fly ash are prepared in a certain proportion as raw materials for cement milling. Firstly, a blank test was carried out, and the test mill was used to grind 25mim without adding grinding aids, and then the materials added with different formulations of grinding aids were ground sequentially, and t...

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PUM

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Abstract

A composite cement grinding aid prepared based on BDO waste tar, the formula of the composite cement grinding aid is calculated as: 20-25% BDO tar; 13-15% triethanolamine; 6-10% glycerin (glycerol ), 5-8% PTMEG; 9-10% sucrose; 38-43% water. Accurately weigh the above components according to the above formula, first fully dissolve sucrose in water, then add other components one by one, stir well to make them evenly mixed, and prepare liquid cement grinding aid. The liquid grinding aid prepared above is used for cement grinding. The invention uses industrial by-products or industrial waste BDO waste tar and PTMEG as the main grinding aids to prepare liquid cement grinding aids, which turns waste into treasure, greatly reduces the production cost and sales cost of cement grinding aids, and makes cement grinding aids There is a broader prospect of promotion and use.

Description

technical field [0001] The invention belongs to the technical field of cement grinding admixtures, in particular to a composite cement grinding aid prepared based on BDO waste tar and a preparation method thereof. Background technique [0002] Cement grinding is one of the most important links in the cement production process, and it is also the process that consumes the most electricity. The power consumption of grinding accounts for about 60% to 70% of the total energy consumption of cement production. Grinding energy consumption and grinding efficiency directly affect the economic performance of cement plant operation, and are the technical bottleneck restricting the development of the cement industry. Therefore, reducing grinding energy consumption and improving cement grinding efficiency have always been the goals pursued by the cement industry. Cement grinding aid is a new type of cement grinding energy-saving technology. The addition of grinding aid can disperse mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32C04B103/52
CPCC04B40/0039C04B2103/52C04B24/08C04B24/122C04B24/026C04B24/32C04B24/10
Inventor 张敏唐元宋锋郎永福
Owner SINOPEC CHANGCHENG ENERGY CHEM NINGXIA CO LTD