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Cement calcination desulfurization and sulfur fixation agent

A sulfur-fixing agent and calcination technology, which is applied in the field of environmental purification to improve the performance of cement

Inactive Publication Date: 2018-07-03
LIAONING XINLONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The desulfurization and sulfur fixation agent solves the technical problems of cement calcining desulfurization and sulfur fixation through the combination of organic polymers, calcium oxide and alumina

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] According to mass, it consists of 1 part of polyacrylamide, 20 parts of bauxite and 10 parts of calcium oxide.

[0008] Technical principle:

[0009] Cement needs to be mixed with raw materials before calcination, with clay, fuel coal, limestone and silica as the main components. After calcination, it hydrates into dicalcium silicate and tricalcium silicate, which are the main components of cement. Raw clay and coal usually contain pyrite, elemental sulfur and other sulfur-containing minerals, so the sulfur-containing components will be oxidized during the calcination process to produce sulfur dioxide or sulfur trioxide. The environment is polluted. Due to different mining areas and different types of coal, it also contains sulfur components. In addition, some clays also contain elemental sulfur, which is also one of the components of sulfur. Also calcined cement needs fuel coal, which also contains sulfur. Therefore, both raw soil raw materials and calcined fuels ...

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Abstract

The invention provides a cement calcination sulfur fixation agent. The cement calcination sulfur fixation agent consists of 1 part by mass of polyacrylamide, 20 parts by mass of bauxite and 10 parts by mass of calcium oxide. The cement calcination sulfur fixation agent can perform desulfurization and sulfur fixation, thereby making sulfur become a component of cement and improving the performanceof the cement. Atmospheric emission of sulfur oxides does not exist after desulfurization calcination and sulfur fixation, so that environmental friendliness is benefitted. The agent is suitable for application as a cement calcination desulfurization and sulfur fixation agent.

Description

technical field [0001] The invention proposes a cement calcining desulfurization and sulfur-fixing agent in the field of environmental purification. Background technique [0002] Cement raw material clay and fuel contain pyrite, iron-manganese nodules and other sulfur-containing minerals, which will produce sulfur dioxide or sulfur trioxide during the sintering process, which will cause environmental pollution when discharged into the atmosphere. Invention content: [0003] In order to reduce the emission of sulfur in the cement sintering process, the invention proposes a cement calcining desulfurization and sulfur-fixing agent. The desulfurization and sulfur-fixing agent solves the technical problems of calcining desulfurization and sulfur-fixing of cement through the combination of organic macromolecule, calcium oxide and alumina. [0004] The scheme that the present invention solves technical problem adopts is: [0005] It consists of 1 part of polyacrylamide, 20 part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/42
CPCC04B7/424C04B7/428
Inventor 李绍宽杨红杨畅刘伏兰孙卫东李泽群
Owner LIAONING XINLONG TECH