Coal slurry oil filed steam injection boiler

The utility model relates to a viscous crude well oil filed steam injection boiler technical field is a coal slurry oil filed steam injection boiler, it includes furnace body, last water -cooling wall, lower water -cooling wall, over heater and air heater, establish the flue that is down the U -shaped in the furnace body, including left vertical flue, the horizontal gas pass of upside and the right vertical flue on right side, it arranges the cinder notch to be equipped with left flue in the furnace body bottom of left vertical flue lower extreme. The utility model has the advantages of reasonable and compact structure, convenient to use, combustor that this steam injection boiler used adopts the coal slurry to make fuel, carries after with the preheating of air through air heater again and gives the coal slurry combustor, avoids stamping out the flames because of the air temperature is low, improves burning reliability and stability, the combustion residue can also the row of follow the cinder notch discharg