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Raw materials combustion adjuvant

A technology of sintering aid and raw meal, applied in clinker production, cement production, etc.

Inactive Publication Date: 2006-09-27
尹小林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: according to the raw material characteristics, material movement and ventilation, indirect combustion, direct combustion, and flameless combustion characteristics in the mechanized shaft kiln, the chemical incomplete combustion and mechanical incomplete combustion can be effectively reduced or even completely eliminated. Combustion problems, and provide a method to improve the thermal efficiency of coal combustion, reduce or even eliminate CO emissions, reduce the reducing atmosphere in the kiln, reduce the reducing materials and yellow heart balls in the clinker, improve the quality of clinker firing, and greatly reduce energy consumption. , protect the environment and improve the economic benefits of raw meal sintering aid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Example 1: 10 parts of sodium nitrate, 5 parts of barium nitrate, 30 parts of sodium fluorosilicate, and 55 parts of phosphogypsum were mixed evenly by weight.

example 2

[0046] Example 2: by weight 15 parts of sodium nitrate, 3 parts of potassium permanganate, 82 parts of barite tailings (containing BaSO 4 , CaF 2 etc.) by crushing and mixing evenly.

example 3

[0047] Example 3: 20 parts of salt nitrate (containing NaNO 3 ), 20 parts of fluorspar, 10 parts of manganese ore, 10 parts of pyrite, and 40 parts of slag were crushed and mixed evenly.

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Abstract

Disclosed is a slurry sintering agent which is prepared by using oxidizing agent as the main raw material, and one or more selected from mineralization agent, seed crystal, grinding aid or packing material as the compatible auxiliary raw materials. The sintering agent can reduce deacidized material in the clinker aggregate and improve the sintering quality of the clinker aggregate.

Description

Technical field: [0001] The invention relates to an energy-saving and environment-friendly technology for cement production, in particular to a raw meal sintering aid in cement production. Background technique: [0002] The mechanized shaft kiln produces a large amount of cement, and its clinker firing relies on fossil resources—coal. Today, energy is scarce and coal prices are soaring. How to save energy and reduce consumption has become the focus of all enterprises. Judging from the retrieval of existing technical materials at home and abroad and the actual application situation, the application of seed crystal technology and mineralizer technology (including speed-burning agent, low-temperature calcination technology, etc.) has achieved certain results. The core of the seed crystal technology is to provide crystal embryos by adding materials containing silicate minerals (such as clinker, metallurgical slag, slag, coal slag, etc.) to promote the C in clinker firing. 3 The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/42C04B7/40
CPCY02P40/121
Inventor 尹小林
Owner 尹小林
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