Flotation pillar special for fly ash

Abstract

The invention relates to a special flotation column of coal fly ash, an ore pulp distributor is arranged at the top part of a cylinder body of the special flotation column, a plurality of layers of bubble plates are arranged in the cylinder body, a multi-point rotary flow device and a multi-point fly ash overflow hole are arranged at the lower part of the cylinder body, an ore pulp distributing pipe is arranged at the periphery of the ore pulp distributor, a circulating pipeline is arranged at the periphery of the cylinder body, the upper end of the circulating pipeline is connected and communicates with the ore pulp distributing pipe, the lower end is connected and communicates with the rotary flow device, an interface of the ore pulp distributing pipe and a feed and discharge port are respectively connected with the both ends of a circulating pump, a high carbon ash balance overflow plate and a high carbon ash overflow collection port are further arranged at the upper part of the flotation column, and the fly ash overflow hole is provided with a fly ash automatic regulation box by the connection of the pipeline. The special flotation column is applicable to various requirements, the decarburization effect is good, the continuous operation is stable and reliable, the quality of fine coal is high and the processing ability is great, thus saving energy, increasing efficiency and saving investment.

Description

Technical field: [0001] The invention relates to a material separation device, in particular to a special flotation column for fly ash. Background technique: [0002] The power generation energy of thermal power plants all comes from coal-fired boilers. When coal-fired boilers are running, a large amount of flue gas is generated. The dust is separated from the flue gas by the electrostatic precipitator. The dust is fly ash. The fly ash produced after full combustion of coal has a very low carbon content (up to the standard), and is widely used as a concrete admixture, and can also be used to make fly ash cement, fly ash bricks, agricultural compound fertilizers and plastics, Filling materials such as walls. In recent years, some high value-added uses of fly ash have been developed. [0003] Good fly ash has a wide range of uses, but due to the influence of coal types and insufficient boiler combustion, etc., the carbon content of fly ash is often too high (that is, the los...

AI Technical Summary

Problems solved by technology

[0003] Good fly ash has a wide range of uses, but due to the influence of coal types and insufficient boiler combustion, etc., the carbon content of fly ash is often too high (that is, the loss on ignition is too high), and the loss on ignition is too high Except for making bricks, the fly ash has basically no use value and is usually discarded

Images