The application provides a near-
zero waste recycling method of waste
metal fly ash captured by cloth bag dust removal, belongs to
hazardous waste resource utilization, and specifically belongs to the energy-saving and
environmental protection industry in the national strategic emerging industry. The application provides a recycling method of waste
metal fly ash, which comprises the following steps:
fly ash captured by a cloth bag dust remover in an oil residue
filter cake metal recovery process is returned to a middle
combustion zone of a multi-chamber furnace for
combustion, so that metal ash first-class products are obtained. The application re-introduces waste fly ash captured by the cloth bag dust remover into a metal
recovery main process, improves the comprehensive
recovery rate of the metal ash products without increasing the load of additional treatment of the
filter cake, significantly reduces the fly ash
discharge amount, and the reduction is greater than or equal to 90%, thereby greatly reducing the
solid waste disposal cost; the return
system does not affect the stable operation of the multi-chamber furnace, the product indexes are qualified and are first-class products, the metal ash yield is increased, the benefit is significant, and the application provides a near-
zero waste technology path for the oil residue
hydrogen production
filter cake metal recovery process.