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	Business and Technology : Fluidized-bed incinerator for industrial waste

FLUIDIZED-BED INCINERATER FOR INDUSTRIAL WASTE

We have successfully developed a Fluidized-Bed Incinerator for industrial waste with much easier handling and high reliability by putting to practical use our rich know-how of solid-fuel burning.

PRODUCT FEATURES

･FLUIDIIZED- BED INCINERATING SYSTEM

We have been developing a variety of boilers especially solid-fuel firing boilers to get richer achievements and experiences with a number of know-hows.

Especially our technology of fluidized-bed solid-fuel incinerator has been introduced from CSL, who is Research Institute, in technical collaboration with NCB (National Coal Board, British) and BP (British Petroleum) and developed to exquisite utilization of our own rich solid-fuel burning know-how.

This Fluidized-Bed Incinerating System is characterized by little emission of dioxin and desalination and desulfurization of sulfur and chlorine in the combustion chamber by blowing in slaked lime.

SPECIFICATION

Type		Fluidized-bed Boiler YM-1000 Type
Mechanism	Furnace	Fluidized-bed
Mechanism	Boiler	Forced circulation type water tube boiler
Boiler steam pressure		1.57MPaG
Steam Evaporation		6t/h
Heating Surface	Furnace	6ｍ²
Heating Surface	Boiler	308ｍ²
Fuel consumption		1000kg/h
Fuel L.H.V. (average)		5000kcal/kg
Electric power		265 kWh (Total of motor capacity)
Dust collector		Cyclone + Bag filter method
Steam turbine output		45 kWh (1.57MPaG / 0.64MPaG)
Slaked lime consumption		6.7kg/h
Activated carbon consumption		2.4kg/h
Chelating agent		2.0kg/h
Dimension		Width 20m x Depth 30m

Be careful that this specification is subject to change according to the waste to be incinerated.

[ Objects to be Incinerated ]
･RDF from Refuse
･RPF from paper waste
･Primarily-broken waste (including high polymer waste)
･Granulated waste
･Muddy waste
･Liquid waste
Note) Muddy waste and liquid waste require inflammables or supportive oil

CONSTRUCTION DETAIL

Fluidized-bed type incinerator has the construction that the incinerator is fed with incinerated objects onto the flowing fine-grained sand layer heated high-temperatured to incinerate the objects during flowing with the layer, burning and breaking them. Retaining time of combustion exhaust gas at the sand layer and the free board (equivalent to secondary combustion chamber) shall be less than 4 seconds, and CO gas content shall be less than 100ppm at furnace outlet.
The sand layer is easy to get heated high in temperature due to combustion heat from burning objects and the sand layer is designed to be cooled by installing part of the boiler transfer tubes at the sand layer. High temperature combustion exhaust gas is planned to be used for steam recovery by the back-installed waste heat boiler and as far as resistant temperature of the dust collector can allows, slaked lime and activated carbon is blowed into exhaust gas to remove SOx and HCl, and dioxin is repressed by absorption and dust collection through activated carbon.