TREATMENT METHOD OF LIQUID FUEL FOR COMBUSTION Russian patent published in 2012 - IPC F23K5/08 

FIELD: power industry.

SUBSTANCE: treatment method of watered liquid fuel for combustion is provided by its supply from holding tank with a pump to self-cleaning filter, where fuel is heated and at the same time cleaned; besides, unfiltered fuel portion returned to holding tank is separated into three flows one of which is supplied to fuel heater installed in central part of holding tank; as heat carrier for the above heater there used is liquid with lower hardening temperature; besides, that liquid circulates via closed circuit including pump and liquid heater, which are located outside holding tank; two other unfiltered fuel flows are mixed by means of water-jet pumps located on periphery of the tank near walls with the fuel contained in holding tank, where together with its primary heating there performed is the first homogenisation stage. Then, primarily heated and homogensied fuel is supplied to the other water-jet pump located in central part of holding tank, in which there performed is one more heating and homogenisation stage, and after that, fuel heated and homogenised for two times is supplied via the pipe to the rotary mixing dispergator arranged outside the holding tank and providing the third homogenisation stage; after that, homogenised fuel heated for three times is supplied again to self-cleaning filter where fuel filtrate is subject to the fourth homogenisation stage, all fuel supplied to self-cleaning filter where its fourth homogenisation stage is performed, filtered fuel is supplied with a pump and subject to the fourth heating stage in heater, then, fuel is supplied to atomisers of boilers.

EFFECT: invention allows obtaining high quality of water-fuel mixture from watered fuel or watered liquid wastes contained in holding tank by four-stage heating and homogenisation of the above liquids when additional watering of fuel outside the tank is not allowed.

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