Carbon-containing fly ash high-temperature melting treatment system

Abstract

The invention discloses a carbon-containing fly ash high-temperature melting treatment system. The carbon-containing fly ash high-temperature melting treatment system comprises a fly ash conveying assembly, a cyclone cylinder and a settling chamber, the fly ash conveying assembly is used for storing and conveying carbon-containing fly ash, mixing the fly ash with air and conveying the fly ash and the air into the cyclone cylinder together; the cyclone cylinder is used for carrying out combustion treatment on the fly ash input by the fly ash conveying assembly, so that the fly ash is melted when the temperature reaches above an ash melting point, slag and high-temperature flue gas are generated, and meanwhile, heat released by combustion of the fly ash is absorbed to generate steam for use; and the settling chamber is connected with the cyclone cylinder through a high-temperature flue gas flowing opening and is used for separating a small amount of fly ash carried in the high-temperature flue gas. According to the carbon-containing fly ash high-temperature melting treatment system, the fly ash is combusted, the fly ash is melted to form the slag when the temperature reaches the ash melting point or above, the carbon content of the slag is almost zero, the problem that the treatment difficulty of the carbon-containing fly ash is large is solved, recycling of combustion heat is achieved, and the efficiency and the heat efficiency of carbon-containing raw material combustion equipment are improved.

Description

technical field [0001] The invention relates to the technical field of carbon-containing fly ash treatment, in particular to a high-temperature melting treatment system for carbon-containing fly ash. Background technique [0002] Coal gasification is an important way for clean and efficient utilization of coal. During the coal gasification process, a large amount of carbon-containing fly ash will be produced, the fly ash particle size is small, the average particle size is only 50 microns; the carbon content is >40%, and the carbon content is high; open-air storage is easy to generate dust and cause pollution, and Fly ash is prone to spontaneous combustion and difficult to store; due to the high carbon content in fly ash, it is difficult to treat as solid waste. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to propose a high-tempe...

AI Technical Summary

Problems solved by technology

Therefore, an object of the present invention is to propose a high-temperature melting treatment system for carbon-containing fly ash. By burning the fly ash, the temperature of the fly ash reaches a temperature above the melting point of the ash and is melted to form a slag, and

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