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A kind of cement raw material additive and its application and cement production process

A technology for cement raw meal and additives is applied in the field of cement production technology to achieve comprehensive utilization of low-cost resources, good grinding aid effect, and the effect of increasing output

Active Publication Date: 2022-03-04
湖南昌迪环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the comprehensive utilization of these waste polyester resources, especially as an additive in cement raw meal and its application.

Method used

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  • A kind of cement raw material additive and its application and cement production process
  • A kind of cement raw material additive and its application and cement production process
  • A kind of cement raw material additive and its application and cement production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0047] In the second embodiment, the application includes: mixing cement raw meal additives into cement raw meal raw materials while they are being ground (that is, mixing is completed in the grinding treatment device), to obtain cement raw meal mixed with cement raw meal additives. feed product.

[0048] In a third embodiment, the application includes: mixing the ground cement raw meal raw materials with cement raw meal additives (such as in the selection of cement raw meal powder, in the cement raw meal storehouse or before entering the preheater bucket elevator), to obtain a cement raw meal product mixed with cement raw meal additives.

[0049] In the above embodiments, the pulverization treatment can be carried out in a conventional device (such as a raw material mill). Preferably, the application is realized in the first embodiment, that is, the mixing of the cement raw meal raw material and the cement raw meal additive is completed before the grinding treatment.

[0050]...

Embodiment SA1

[0070] The liquid A (100 parts by weight) was mixed with cement raw material in a ratio of 0.03 weight % for grinding and calcining. The specific conditions and results are shown in Table 1.

Embodiment SA2

[0072] The liquid A (100 parts by weight) was mixed with cement raw material at a ratio of 0.1% by weight for grinding and calcining. The specific conditions and results are shown in Table 1.

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Abstract

The disclosure relates to a cement raw meal additive and its application and cement production process. The cement raw meal additive contains depolymerization reaction liquid of waste polyester and / or waste after fractionation of the depolymerization reaction liquid, and optional alkali Sex enhancer. The cement raw meal additive provided by the present disclosure can recycle the depolymerization reaction solution of waste polyester and / or the fractionated waste of the depolymerization reaction solution in cement raw meal grinding and cement production, and has a good improvement Comprehensive effects such as increasing output, reducing coal consumption, improving raw material burnability and desulfurization.

Description

technical field [0001] The present disclosure relates to a cement raw meal additive, its application and a cement production process. Background technique [0002] Cement production is an industry with low energy utilization rate and high energy consumption. my country's cement output in 2016 was 2.3 billion tons, accounting for more than half of the global output. 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 ground raw meal is added to the cement kiln to be calcined until it is partially melted, and the cement clinker with calcium silicate as the main component is obtained. The raw material i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/42C04B7/36
CPCC04B7/424C04B7/425C04B7/428C04B7/36
Inventor 屈铠甲蒋卫和钱文斌
Owner 湖南昌迪环境科技有限公司
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