Interior burning formula biomass boiler

The utility model provides an interior burning formula biomass boiler, relates to biomass fuel combustion apparatus technical field. The furnace body divide into that the heat production of mutual intercommunication is regional, the heat transfer is regional, in the heat production region feed arrangement the discharge gate with set up in the feed inlet of combustion chamber lateral wall intercommunication, the slag is collected the room and is located the combustion chamber below, furnace locates the combustion chamber top, the combustion chamber is collected with the slag and is equipped with the grate between the room, collects upward slag notch of smelter body outer wall that the room corresponds with the slag, is equipped with the air distribution equipment of symmetric distribution on the lateral wall of combustion chamber, the below is equipped with some firearms, in the heat transfer region upper portion, the lower part of furnace body be equipped with respectively with water inlet, the delivery port of the outside intercommunication of furnace body, go up the smoke box with down through flue tied in a bundle intercommunication between the smoke box, go up the smoke box, down smoke box, flue tied in a bundle and form the water jacket between the furnace body, go up smoke box and furnace intercommunication, lower smoke box and draught fan intercommunication. After adopting above -mentioned structure, the compact structure of boiler increases radiation heat transfer efficiency.