The invention relates to a treatment method of
cyclohexanone saponification alkali waste. The method includes: injecting alkali waste into an alkali
recovery furnace, using a fuel to help
combustion, combusting the alkali waste in the presence of an
oxygen-containing gas, subjecting the
tail gas generated by
combustion to electric dedusting to recover dry alkali ash, and leaving the melt generated from
combustion to flow out from a furnace bottom chute. The method is characterized by: crushing the melt coming from the chute by a fluid into particles or
powder, which then enter a water solution, then getting the particles or
powder out of the water solution by a
solid-liquid separation device, thus obtaining
moisture-containing coarse alkali; using a feeding device to deliver the
moisture-containing coarse alkali into a one-stage or multi-stage series dryer, which is provided with a scale plate conveyor line, a
heat supply air hood, a stirrer and a dehumidifying air hood inside; introducing a high temperature gas into the dryer to serve as a
drying heat source, and discharging the
water vapor generated by water
evaporation of the
moisture-containing coarse alkali and the
tail gas from thermal conversion out of the
system by the dehumidifying air hood disposed in the dryer through a dehumidifying air course
system; and after
drying the moisture-containing coarse alkali by the dryer, discharging it from a last-stage dryer outlet. The method provided in the invention has the advantages that: complete
recovery of melt generated by alkali
waste combustion by means of
drying the coarse alkali can achieve a good drying effect, the recovered material has a low
water content, and no
wastewater is generated. Thus, the method can be used for chemical industrial production of
cyclohexanone and the like, and has good
environmental protection significance and
economic benefits.