Method and device for utilizing flying ash in electric power plant to produce floating beads

Abstract

The invention relates to a method and a device for utilizing flying ash in an electric power plant to produce floating beads, solving the problems that coal in the prior art generates a great amount of coal ash incapable of being effectively utilized so as to waste resources and pollute the environment, and the prior adopted method of specific gravity directly separates the floating beads from the coal ash so as to have low production efficiency and yield, hardly controlled product quality, and the like. The self-designed device utilizing the flying ash to produce the floating beads and the method using fuel gas as a powder feeding agent (flying ash) directly send the flying ash into a combustion chamber, and the flying ash is directly melted in a high-temperature high-speed gas flow generated by the fuel gas and pure oxygen in the combustion chamber to be liquid drops so as to produce a floating bead product. The method and the device enable the flying ash to reburn so that pulverized coal is converted into the floating bead product with a high added value and has the advantages of extremely simple production device and technology, high production efficiency and strong practicability. Floating beads can be widely applied, can be used as plastics and rubber filling, high-quality heat-insulating materials, building materials, advanced composite materials, and the like, thereby having favorable market application prospects and industrialized prospects.

Description

Technical field: [0001] The invention relates to a method and equipment for producing floating pearls, in particular to a method and equipment for producing floating pearls using fly ash from a power plant. The floating beads prepared by the invention are mainly used as plastic and rubber fillers, high-quality thermal insulation materials, building materials, advanced composite materials, etc., and belong to the field of material manufacturing and application. Background technique: [0002] At present, the specific gravity method is used to directly separate the floating beads from the coal ash at home and abroad, but because the content of the floating beads in the fly ash is generally only about 1-2%, the production efficiency is very low, and the product quality (including particle size, composition, The internal structure of floating beads, etc.) is difficult to control, and the output is not high. Such as "BT Horsfield, Treatment of metal oxides, U.S. Patent Law 187179...

AI Technical Summary

Problems solved by technology

At present, the utilization level of coal ash in our country is very low, it is only used to make cement, roadbed materials, etc., and the utilization rate is still less than 10% of the total.

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