Compound pulverized fuel ash activator and application

Abstract

The invention relates to an activator, in particular to a compound pulverized fuel ash activator and application. The compound pulverized fuel ash activator is used for activating pulverized fuel ash,and is prepared from, by weight, 30-35 parts of silicate, 3-5 parts of borate, 1-2 parts of sulfate, 3-5 parts of phosphate, 3-5 parts of hydroxide, 1-2 parts of haloid and 1-5 parts of lignosulfonate. Sulfate is prepared from dicalcium silicate, tricalcium silicate and a C component, and the C component is prepared from at least one of sodium silicate, sodium metasilicate or potassium metasilicate. By means of the compound pulverized fuel ash activator and the application, the pulverized fuel ash is directly or indirectly subjected to chemical modification of the surface of the pulverized fuel ash and modification of substances among particles of the pulverized fuel ash, generation of gel substances and the generation of all structure crystals are promoted, and treated pulverized fuel ash shows stable physical and chemical performance. The invention further provides the application of the compound pulverized fuel ash activator in preparing partition slats, the prepared partition slats have stable quality, have the fireproof level of A1, and have the advantages of having low weight, heat insulation, high strength, fire resistance, water resistance and the like.

Description

technical field

[0001] The invention relates to an activator, in particular to a composite fly ash activator and its application. Background technique

[0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants.

[0003] The impact of fly ash in power plants on the environment is mainly manifested in:

[0004] ① Ash storage needs to occupy a large amount of land or farmland, which wastes land resources and pollutes the soil; ② Dust pollutes the air. As long as there is a wind force above level 4, the surface ash particles can be stripped and discarded, and the ash height can reach 20-50m. Fly ash suspended in the atmosphere not only affects visibility, but also affects buildings and engineering facilities in humid environments. ③ Wet ash discharge will waste water resources and cause surface water pollution. Fly ash will enter the water body, which will greatly increase the turb...

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