Abstract: Disclosed is a hybrid drying system where a cold-air drier and a desiccant drier are combined to increase drying efficiency (extent of dehumidification/power consumption), thereby shortening drying time and significantly reducing operation costs. The hybrid drying system includes a desiccant drier installed between an evaporator and a condenser and having an absorbing part configured to produce dry air from the cold-air dried air which has passed through the evaporator and a detaching part configured to supply recycled air heated by the condensation heat of the condenser as a recycling heat source; a heat exchanger configured to heat-exchange exterior air with recycled exhaust air with the recycled air to retrieve exhaust heat; and a control unit configured to simultaneously control a cold-air drying operation and a desiccant drying operation according to the humidity and temperature of the drying chamber.

Abstract: There is disclosed a device for purifying oily wastewater, including a vertical tank of an atmospheric pressure, inside which a central coagulation reaction tube, a reverse cone-shaped cyclone flocculation stage, a suspended sludge filtering zone and a purified water commutation stage of inclined plates are included from bottom to top sequentially, oily wastewater is sequentially subjected to a coagulation reaction, suspended sludge filtering and a purified water commutation process and then discharged, a sludge collecting groove collects and guides the suspended sludge to a sludge concentrating zone for further sedimentation and concentration processes and then discharges it to external to the tank, in this way, the purification reaction, flocculation and fine filtration of wastewater and the sludge concentration process are integrated within the same wastewater purifying device. Thus, the device is equivalent to the existing wastewater pretreatment system plus a fine filtration system.

Abstract: The invention describes stevia compositions that are devoid of or have minimal concentrations of rebaudioside C and/or dulcoside A to decrease the aftertaste associated with stevia compositions.

Abstract: Disclosed are a hybrid desiccant dehumidifying apparatus and a control method thereof which are employed under poor environment, such as a ship painting field. External air cooled by an evaporator is dehumidified and heated while passing through a desiccant dehumidifier and external air heated by condensation heat of a condenser is supplied to the desiccant dehumidifier as a regeneration air source such that high-temperature and high-humidity regeneration. A cooler is integrally formed with the desiccant dehumidifier so that the hybrid desiccant dehumidifying apparatus is manufactured in a compact size and the operating cost thereof is significantly reduced.

Abstract: The present invention relates to a charcoal cooker being easy to kindle a charcoal and to adjust heat applied to food in cooking. The charcoal cooker comprises: a charcoal burning part for containing and burning charcoal; a cooking part for cooking food by use of heat emitted from the charcoal burning part, a housing for defining an inner space with a top opening; an inner dish arranged on a bottom of said housing for receiving filth and defining said charcoal burning part; a fuel rack arranged at a position spaced from a bottom of said inner dish and in said inner dish; a support means adapted to support a food holder over said fuel rack; and a food holder lifting means adapted to adjust a gap between said fuel rack and said food holder supported by said support means by displacing said support means.

Abstract: The present invention relates to a charcoal cooker being easy to kindle a charcoal and to adjust heat applied to food in cooking. The charcoal cooker comprises: a charcoal burning part for containing and burning charcoal; a cooking part for cooking food by use of heat emitted from the charcoal burning part, a housing for defining an inner space with a top opening; an inner dish arranged on a bottom of said housing for receiving filth and defining said charcoal burning part; a fuel rack arranged at a position spaced from a bottom of said inner dish and in said inner dish; a support means adapted to support a food holder over said fuel rack; and a food holder lifting means adapted to adjust a gap between said fuel rack and said food holder supported by said support means by displacing said support means.