The present invention relates to an apparatus for using waste heat of livestock manure utilizing waste heat from a livestock manure fermenter, and in detail, it is intended to develop a technology that can be used for drying sludge by recovering waste heat generated in the livestock manure fermenter. The livestock manure waste heat utilization device includes a fermenter waste heat recovery unit including at least one recovery device for recovering waste heat in the fermenter, a solid manure drying unit for drying the solid livestock manure, and a drying mode determining unit and a cooling mode determining unit, and a control unit for controlling the at least one recovery device based on the operation mode of the at least one recovery device determined by the drying mode determining unit or the cooling mode determining unit, wherein the cooling mode determining unit is configured to cool the fermenter. The operation mode is set to the first cooling mode or the second cooling mode, and the control unit operates the solid manure drying unit to lower the temperature of the fermenter based on the first cooling mode, and based on the second cooling mode, It characterized in that the control unit operates the fermenter waste heat recovery unit to lower the temperature of the fermenter. Through the present invention, it is possible to improve the efficiency of the livestock manure treatment facility by reducing the production cost of solid fuel, pellet compost, and controlling the temperature of the fermenter.
展开▼
