Fly ash recycling device with built-in glass film removing function

Abstract

The invention discloses a fly ash recycling device with a built-in glass film removing function. One side surface in the body barrel is provided with a groove; a plurality of discharge electrodes areattached along the outer peripheral surface; internal part of body drum, grounding electrodes are arranged on the outer surfaces of the cylinders of which the two tail end surfaces are elliptical; thetwo tail end faces of the body barrel and the second barrel which are attached to the motor to rotate are oval. The second barrel is connected with an elliptic cylindrical first barrel; centrifugal force generated by the rotation of the motor is used; the flow of the fly ash particles formed between the body drum and the first drum is maintained in a Kuelite flow state; high-pressure air is sprayed to coal ash in advance through a coal ash supply pipe arranged on one side of the upper portion of a barrel of the body to form gaps among coal ash particles. Removing the glass film by a chemicalreaction of a main component substance of the glass film coated on the surfaces of the particles by a chemical reaction with fly ash particles by spraying a fluorine compound; and removing the glass film coated on the surfaces of the particles by a hydrolysis reaction by spraying water vapor to the fly ash.

Description

technical field [0001] The present invention relates to a fly ash recycling device with a built-in glass film removal function. More specifically, the present invention relates to a fly ash recycling device with a built-in glass film removal function that sprays coal ash on the fly ash during electrostatic dust collection. Mix high-pressure air to fly ash based on the gaps between the particles, then, in the high-voltage discharge process, fly ash particles and air are ionized, and the centrifugal force generated by the high-speed rotating injection port is sent to the electrostatic precipitator The flow of the injected fly ash particles forms a swirl flow. During the elastic collision between fly ash particles and the mixing process of ionized ash and high-pressure air, during the friction process with the inner surface of the injection port , the fly ash particles will be charged, in the fly ash particles with (+) and (-) charges, the unburned carbon component (C) is separat...

AI Technical Summary

Problems solved by technology

[0013] In Korean Patent Publication No. 10-1547959 (Method for recovering unburned carbon from bottom ash by corona discharge type electrostatic screening method), as fly ash generated after burning coal in a thermal power plant, in order to bury The imported bottom ash is used as building materials, etc. to recover unburned carbon and perform particle size separation. To improve screening efficiency, remove broken and floating impurities, and perform screening operations to concentrate unburned carbon content. Concentrate unburned carbon Bottom ash applies suspended 2000 Gauss magnetic field to separate iron powder, in the classic screening step of corona discharge type, the technology of recovering unburned carbon in bottom ash from iron powder separated bottom ash, the above technology cannot remove the glass film of bottom ash particles

[0014] In Korean Patent Publication No. 10-1514124 (method of removing unburned carbon from fly ash using plasma), in the plasma treatment process, after dispersing 1.2 g of fly ash into the chamber, oxygen (O 2 ), water vapor (H 2 O), a mixed fluid of oxygen and water vapor (O 2 +H 2 O) and other oxidizing agents, after reducing the internal pressure of the chamber to 0.5torr, carry out plasma treatment after heating at 150°C to remove fly ash until the concentration of fly ash is less than 1%. In the above-mentioned technology, there is a chamber The problem of reducing the internal pressure of the chamber to 0.5 torr, the problem of continuous consumption of oxidant, and the inability to remove the glass film on the surface of the fly ash particle will cause the device to become complicated in the process of enlarging, and will consume huge investment costs and maintenance cost

[0015] As mentioned above, in conventional thermal power plants, the fly ash treatment technology recovered from the coal gas burned during the process is a part lacking in treatment efficiency due to the above-mentioned problems, and it has not been proposed to ensure stability and durability. Specific solutions for high-performance and high-capacity processing

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