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Powdery compound cement grinding aid and preparation method thereof

A technology for compounding cement and grinding aid, which is applied in the field of cement admixtures, can solve the problems of rapid growth in the early strength of cement of various mineral components of cement, poor performance in terms of cement performance and quality, and slow growth in later strength, etc. and over-grinding phenomenon, various performance and quality improvement, and the effect of increasing the dosage

Inactive Publication Date: 2010-05-19
YANGCHENG JIXIN BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the existing cement grinding aids easily lead to the bottleneck effect of the reaction between the various mineral components of the cement, so that the early strength of the cement increases quickly but the later strength increases slowly, and the effect of improving the performance and quality of the cement in various aspects is poor, etc. Problem, provide a kind of powder composite cement grinding aid and preparation method thereof

Method used

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  • Powdery compound cement grinding aid and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] Example 1: Each serving is 1 kg

[0020] A powder composite cement grinding aid is formed by mixing 2% liquid part and 98% powder part by weight, wherein the liquid part is made of the following raw materials in parts by weight, triethanolamine is 200 kg, Coconut acid diethanolamide 100 kg, water 300 kg, potassium dichromate 20 kg, sodium nitrite 20 kg, sodium hexametaphosphate 20 kg, SM Nai series water reducer 10 kg, calcium lignosulfonate 10 kg, soap 4 kg; wherein the powder part is made of the following raw materials in parts by weight, 100 kg of alum stone powder, 50 kg of sodium acetate, 100 kg of ferrous sulfate heptahydrate, 50 kg of sodium thiosulfate, 150 kg of limestone powder, and fly ash 150 kg, Glauber's salt 100 kg. The preparation method comprises the following steps: (1) Firstly, potassium dichromate, sodium nitrite, sodium hexametaphosphate, SM nano-based water reducing agent and calcium lignosulfonate in the liquid part are dissolved in water in prop...

Embodiment 2

[0021] Example 2: Each serving is 1 kg

[0022]A powder composite cement grinding aid is formed by mixing 5% liquid part and 95% powder part by weight, wherein the liquid part is made of the following raw materials in parts by weight, triethanolamine is 500 kg, Coconut acid diethanolamide 300 kg, water 600 kg, potassium dichromate 30 kg, sodium nitrite 50 kg, sodium hexametaphosphate 30 kg, SM Nai series water reducing agent 20 kg, calcium lignosulfonate 30 kg, soap 5 kg; wherein the powder part is made of the following raw materials in parts by weight, 300 kg of alum stone powder, 100 kg of sodium acetate, 300 kg of ferrous sulfate heptahydrate, 150 kg of sodium thiosulfate, 250 kg of limestone powder, and fly ash 300 kg, Glauber's salt 400 kg. The preparation method comprises the following steps: (1) Firstly, potassium dichromate, sodium nitrite, sodium hexametaphosphate, SM nano-based water reducing agent and calcium lignosulfonate in the liquid part are dissolved in water...

Embodiment 3

[0023] Example 3: Each serving is 1 kg

[0024] A powder composite cement grinding aid is formed by mixing 3% liquid part and 97% powder part by weight, wherein the liquid part is made of the following raw materials in parts by weight, triethanolamine is 200 kg, Coconut acid diethanolamide 300 kg, water 300 kg, potassium dichromate 25 kg, sodium nitrite 50 kg, sodium hexametaphosphate 30 kg, SM Nai series water reducing agent 15 kg, calcium lignosulfonate 20 kg, soap 4 kg; wherein the powder part is made of the following raw materials in parts by weight, 150 kg of alum stone powder, 100 kg of sodium acetate, 100 kg of ferrous sulfate heptahydrate, 100 kg of sodium thiosulfate, 200 kg of limestone powder, and fly ash 150 kg, Glauber's salt 200 kg. The preparation method comprises the following steps: (1) Firstly, potassium dichromate, sodium nitrite, sodium hexametaphosphate, SM nano-based water reducing agent and calcium lignosulfonate in the liquid part are dissolved in wate...

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Abstract

The invention relates to a cement admixture, in particular to a powdery compound cement grinding aid and a preparation method thereof. The invention solves the problems of bottleneck effect in the reactions among various cement components in the prior cement grinding aid, poor effect of enhancing cement properties in various aspects, and the like. The powdery compound cement grinding aid is prepared from a liquid part and a powder part, wherein the liquid part is prepared from triethanolamine, cocoanut oil diethan olamide, potassium dichromate, sodium nitrite, sodium hexametaphosphate, an SM naphthalene water-reducing agent and the like; and the powder part is prepared from alunite powder, sodium acetate, iron vitriol, sodium thiosulfate, limestone powder and the like. The powdery compound cement grinding aid can provide an intermediate platform for the reactions among various cement components, so that the components in the cement produce mutual compound cooperation and superimposition effects, thereby effectively exciting the lateral reactivities of the components, enabling the components to perform the respective grind aiding functions in the powder grinding process, effectively eliminating the phenomena of ball paste and heavy grinding, increasing the specific area of the cement and the production output per hour of the cement grinder and greatly enhancing the rupture strength and the compression strength of the cement.

Description

technical field [0001] The invention relates to a cement admixture, in particular to a powder composite cement grinding aid and a preparation method thereof. Background technique [0002] Population expansion, resource shortage and environmental degradation are the three major problems facing human society today. Taking the road of sustainable development has become the consensus of the world and the strategic goal of future development. my country is a big cement producing country, and its cement production has always ranked first in the world. However, for a long time, most of our cement enterprises still use shaft kilns and wet kilns to calcinate cement clinker. The cement produced by this method has high energy consumption. The dust is large, the amount of clinker is large, the consumption of limestone resources is large, the utilization rate of waste slag is low, and the quality of the cement produced is not high. This technology is completely unsuitable for the requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B2103/52C04B2103/0007C04B2111/343C04B40/0039Y02W30/91C04B18/08C04B22/085C04B22/087C04B22/10C04B22/147C04B22/148C04B22/149C04B22/16C04B24/04C04B24/085C04B24/122C04B24/124C04B24/18C04B24/226C04B28/02C04B2103/302
Inventor 郭建斌张杰
Owner YANGCHENG JIXIN BUILDING MATERIAL
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