Composite fluidized bed sludge incineration treatment furnace

Abstract

The invention discloses a composite fluidized bed sludge incineration treatment furnace. The furnace comprises a fluidized bed drying chamber, a combustion furnace and a cyclone separator connected adjacently in sequence in the horizontal direction. The inner part of the combustion furnace is divided into an upper part and a lower part communicated with each other, the lower part is a main combustion chamber, the upper part is a mixed secondary combustion chamber, a feeding port, a discharging port, and a fluidized air inlet and a fluidized air outlet using low-temperature flue gas as fluidized air are formed in the fluidized bed drying chamber, the discharging port of the fluidized bed drying chamber is connected with a feeding machine, the feeding machine is connected with the main combustion chamber, the fluidized air outlet of the fluidized bed drying chamber is communicated to the lower part of the mixed secondary combustion chamber, a separator inlet, a separator discharging portand a separator flue gas outlet are formed in the cyclone separator respectively, the upper part of the mixed secondary combustion chamber is communicated with the separator inlet, and the separatordischarging port is communicated with the main combustion chamber. The furnace achieves the integration of sludge drying and incineration, the energy utilization rate is high, and energy self-supply of sludge incineration can be achieved.

Description

technical field [0001] The invention relates to the technical field of sludge incineration treatment, in particular to a composite fluidized bed sludge incineration treatment furnace. Background technique [0002] A large amount of sludge will be produced in the process of urban and industrial sewage treatment. If these sludges are not treated, they will become an important source of pollution affecting the urban environment. At present, the treatment methods for sludge include landfill and incineration. Among them, the use of landfill will occupy a large amount of land, and will also cause serious secondary pollution and new environmental problems, bringing hidden dangers to the ecological environment. The sludge incineration technology has become the mainstream of sludge treatment due to its advantages of processing speed blocks, small volume of ash after sludge treatment, useful products, and good safety. [0003] The sludge incineration treatment technology in the prio...

AI Technical Summary

Problems solved by technology

[0004] One is that the sludge should be dried first with special dehydration equipment, and then sent to the incinerator for combustion. The integration of sludge drying and incineration has not been realized, and the sludge transportation process has been increased;

[0005] Second, the energy of sludge incineration is not fully utilized, and the energy self-supply of sludge incineration cannot be realized

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