Abstract: Disclosed is an apparatus for drying and concentrating, using waste vapor, which includes: a vapor supplying unit that produces and supplies vapor, using a boiler; a vapor storing unit that temporarily stores the vapor from the vapor supplying unit; a drying/concentrating unit that receives the vapor from the vapor storing unit and dries/concentrates a high-moisture material, in an indirect heat transfer type; a waste vapor collecting unit that collects waste vapor produced from the high-moisture material in the drying/concentrating unit; a vapor compressing unit that compresses the waste vapor collected by the waste vapor collecting unit; a condensate water discharging unit that separates condensate water, which is discharged after used as heat source in the drying/concentrating unit, and stink gases and discharges them; and a stink gas supplying line through which the stink gases separated by the condensate water discharging unit is supplied to the boiler.

Abstract: Disclosed is a steam compressing and storing device for a waste heat boiler, which is connected to the waste heat boiler generating steam by collecting waste heat from external facilities and stores the steam, the steam compressing and storing device including: a first steam storage unit that is communicably connected to the waste heat boiler and has a heat insulating structure to receive the steam and store the steam in an insulated state; a steam compressor that is communicably connected to the first steam storage unit and receives, from the first steam storage unit, and compresses the steam; and a second steam storage unit that is communicably connected to the steam compressor and has a heat insulating structure to receive the compressed steam from the steam compressor and store the compressed steam in an insulated state.

Abstract: Disclosed is an apparatus for drying and concentrating, using waste vapor, which includes: a vapor supplying unit that produces and supplies vapor, using a boiler; a vapor storing unit that temporarily stores the vapor from the vapor supplying unit; a drying/concentrating unit that receives the vapor from the vapor storing unit and dries/concentrates a high-moisture material, in an indirect heat transfer type; a waste vapor collecting unit that collects waste vapor produced from the high-moisture material in the drying/concentrating unit; a vapor compressing unit that compresses the waste vapor collected by the waste vapor collecting unit; a condensate water discharging unit that separates condensate water, which is discharged after used as heat source in the drying/concentrating unit, and stink gases and discharges them; and a stink gas supplying line through which the stink gases separated by the condensate water discharging unit is supplied to the boiler.