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Cement raw material additive and preparation method thereof

A technology of cement raw meal and additives, applied in the field of cement raw meal additives and its preparation, can solve the problems of shortage and less research, and achieve the effects of lasting effect, promoting infiltration and reducing emissions

Pending Publication Date: 2021-12-17
NANJING YONGNENG MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the important raw meal grinding process in the cement production process is less studied, and there is a lack of a cement raw meal additive with good energy saving, coal saving, production increase and enhancement effects.

Method used

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  • Cement raw material additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A cement raw meal additive, its raw material composition is: 10% of raw meal decomposition accelerator, 13% of coal saving agent, 6% of grinding aid enhancer, 10% of desulfurization active agent, 0.1% of dispersant; the balance is water, The total amount is 100%; said percentages are mass percentages.

[0025] According to the proportion of the formula, stir and mix the raw meal decomposition accelerator, coal saving agent, grinding aid enhancer, desulfurization active agent and dispersant in water at 40 degrees Celsius to obtain Product 1.

Embodiment 2

[0027] A cement raw meal additive, its raw materials are composed of: raw meal decomposition accelerator 17%, coal saving agent 16%, grinding aid enhancer 9%, desulfurization active agent 14%, dispersant 0.3%; the balance is water, The total amount is 100%; said percentages are mass percentages.

[0028] According to the formula ratio, the raw meal decomposition accelerator, coal saving agent, grinding aid enhancer, desulfurization active agent, and dispersant are stirred and mixed evenly in water at 40 degrees Celsius to obtain Product 2.

Embodiment 3

[0030] A cement raw meal additive, its raw material composition is: 14% of raw meal decomposition accelerator, 14% of coal saving agent, 8% of grinding aid enhancer, 12% of desulfurization active agent, 0.2% of dispersant; the balance is water, The total amount is 100%; said percentages are mass percentages.

[0031] According to the proportion of the formula, the raw material decomposition accelerator, coal saving agent, grinding aid enhancer, desulfurization active agent, and dispersant are stirred and mixed evenly in water at 40 degrees Celsius to obtain product 3.

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Abstract

The invention provides a cement raw material additive and the preparation method thereof; a grinding-aiding reinforcing agent is firstly added, the grinding-aiding reinforcing agent can accelerate grinding refinement after raw materials are ground, and the grinding-aiding reinforcing agent can stimulate the strength of the sintered raw materials, so that the effects of saving energy, increasing the yield and enhancing are achieved. The addition of a raw material decomposition accelerator can change the chemical reaction way in the raw material firing process, so that the raw material can react at the temperature lower than the normal firing temperature to generate clinker, and the reaction activation energy is reduced to promote the rapid decomposition of the raw materials. An added desulfurization activator can react with generated sulfur dioxide in the firing process to generate sulfur trioxide, so that the purposes of sulfur fixation and desulfurization are achieved. By adding a dispersing agent component, infiltration between each component and the raw materials can be effectively promoted, and the contact area of the components and the raw material can be increased, so that the respective effects can be more effectively exerted. The additive has good energy-saving, coal-saving, yield-increasing and enhancing effects, the effect is lasting and high-temperature-resistant, the liquid is more convenient to use, and the additive has a desulfurization effect and is more environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of cement clinker firing, and in particular relates to a cement raw meal additive and a preparation method thereof. Background technique [0002] Cement production is an industry with low energy efficiency and high energy consumption. The cement production process is divided into three stages, that is, calcareous raw materials, clay raw materials, and a small amount of corrected raw materials (a certain amount of coal is also added to shaft kiln production). After crushing or drying, they are blended in a certain proportion, ground, and Preparation of raw meal with suitable composition and uniform quality is called the first stage - raw meal grinding. Then the pulverized raw meal is added to the cement kiln and calcined until it is partially melted to obtain cement clinker with calcium silicate as the main component, which is called the second stage-raw meal calcination. The clinker is added with an approp...

Claims

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Application Information

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IPC IPC(8): C04B7/42
CPCC04B7/428C04B7/424C04B7/425
Inventor 印志松李晓静
Owner NANJING YONGNENG MATERIALS
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