Ultra-high-temperature flame melting furnace system for treating waste incineration fly ash
A technology of waste incineration fly ash and flame melting, applied in incinerators, burners, combustion methods, etc., to prevent heat loss and shorten melting treatment time
Active Publication Date: 2018-03-30
SHANXI UNIV
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[0006] The purpose of the invention is to solve the problem of harmless treatment of waste incineration fly ash
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[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0030] Such as Figure 1-3 As shown, an ultra-high temperature flame melting furnace system for processing waste incineration fly ash in this embodiment includes a liquid oxygen storage 1, a gasifier 2, a waste incineration boiler bag filter 3, a fly ash storage bin 4, Screw feeder 5, frequency conversion cooling fan 6, automatic control system 7, micro bag filter 8, smoke outlet 9, electric control valve 10a, 10b, 10c, 10d, oil tank 11, oil pump 12, flow meter 13a, 13b , pressure transmitter 14, three ultra-high temperature flame generators 15, thermocouples 16a, 16b, refractory layer 17, melting furnace body 18, melting furnace water cooling jacket 19, waste incineration boiler economizer 20; the ultra-high temper...
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The invention particularly relates to an ultra-high-temperature flame melting furnace system for treating waste incineration fly ash and solves the problem about harmless treatment of the waste incineration fly ash. The system mainly comprises a liquid oxygen storage tank, a gasifier, a fly ash storage bin, a screw feeder, a variable-frequency cooling fan, an automatic control system, a miniaturebag-type dust collector, electric regulating valves, an oil tank, an oil pump, flow meters, an ultra-high-temperature flame generator, thermocouples, a flame-retardant layer, a melting furnace body, amelting furnace water-cooling jacket and the like. By the aid of the ultra-high-temperature flame generator, adiabatic combustion of diesel in a pure oxygen atmosphere can be realized under the condition that the stoichiometric ratio is 1:1, an ultra-high-temperature flame having the temperature exceeding 5,000 DEG C can be generated, and fly ash produced through waste incineration can stay for the long enough melting time in the ultra-high-temperature flame, so that pollutants such as heavy metals and the like in the fly ash can be solidified in vitreous slag, harmless treatment of the incineration fly ash is realized, and the heavy metal leaching toxicity of the slag after treatment can be 95% or more less than that of the slag before treatment.
Description
technical field [0001] The invention belongs to the field of solid hazardous waste treatment, and in particular relates to an ultra-high temperature flame melting furnace system for treating waste incineration fly ash. Background technique [0002] The fly ash produced during the incineration process of garbage is rich in toxic chemicals, such as heavy metals, polycyclic aromatic hydrocarbons, and dioxins. Therefore, it is identified as hazardous waste and requires harmless treatment. [0003] At present, the commonly used waste incineration fly ash treatment methods mainly include: acid solvent leaching method, cement solidification method, pozzolanic waste solidification method, chemical agent stabilization method, melting heat treatment method, sintering heat treatment method, etc. [0004] Among them, fusion heat treatment technology is a relatively advanced harmless resource treatment technology of waste incineration fly ash at home and abroad. It has the advantages of ...
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Patent Timeline
Login to View More IPC IPC(8): F23G7/00F23D11/00
CPCF23D11/00F23G7/00F23G2209/30F23G2204/103F23G2205/20
Inventor 闫高程
Owner SHANXI UNIV