A method for drying laundry with a radio frequency (RF) generator connected to an applicator and a rotatable cylindrical drum having a pair of non-anode baffles and a third baffle comprising an anode element positioned between the pair of non-anode baffles and a first cathode element disposed between the third baffle and one of the pair of non-anode baffles and a second cathode disposed between the third baffle and the other of the pair of non-anode baffles. The method comprises rotationally positioning the drum such that laundry is positioned between the anode element within the third baffle and the pair of non-anode baffles, energizing the RF applicator for a time period to generate a field of electromagnetic radiation (e-field) within the radio frequency spectrum between the anode element and the at least one of the first and second cathode elements such that liquid in laundry residing within the e-field will be dielectrically heated to effect a drying of the laundry during the time period, rotating the drum to redistribute laundry, and repeating the positioning the drum and energizing the RF applicator.

The present disclosure relates to a facility for forming a wood plastic composite by mixing and extruding wood powder and a polymer resin. According to a facility of the present disclosure, in a process of forming a wood plastic composite, gas and water vapor contained in wood powder and polymer resin are efficiently removed, and thus, a coupling force between wood powder and polymer resin increases, and also, wood powder is uniformly dispersed inside polymer resin, and thus, physical properties of a wood plastic composite to be formed is not degraded, and in addition, since there is no stagnant section while molten liquid of wood powder and polymer resin passes through each apparatus in the facility, wood powder is prevented from carbonizing or polymer resin is prevented from solidifying, and thus, physical properties of the wood plastic composite to be formed are maintained constant.

The present disclosure relates to a facility for forming a wood plastic composite by mixing and extruding wood powder and a polymer resin. According to a facility of the present disclosure, in a process of forming a wood plastic composite, gas and water vapor contained in wood powder and polymer resin are efficiently removed, and thus, a coupling force between wood powder and polymer resin increases, and also, wood powder is uniformly dispersed inside polymer resin, and thus, physical properties of a wood plastic composite to be formed is not degraded, and in addition, since there is no stagnant section while molten liquid of wood powder and polymer resin passes through each apparatus in the facility, wood powder is prevented from carbonizing or polymer resin is prevented from solidifying, and thus, physical properties of the wood plastic composite to be formed are maintained constant.

A method for reducing moisture of a material includes applying microwave radiation combined with RF to the material to heat and evacuate moisture from the material during a heating cycle and optionally alternating heating cycles with drying/cooling cycles. In particular, a method is disclosed to reduce a moisture content level of a material that comprises irradiating a portion of the material with microwave to heat and vaporize moisture therewithin during a heating cycle; combining or alternating the microwave with RF heating for a time interval during the heating cycle to reduce the moisture content level of the material; and alternating the heating cycle with a cooling cycle. In certain aspects or embodiments, the system comprises at least an enclosure, a microwave delivery device, a radio-frequency emitter and power supply.

A method for reducing moisture of a material includes applying microwave radiation combined with RF to the material to heat and evacuate moisture from the material during a heating cycle and optionally alternating heating cycles with drying/cooling cycles. In particular, a method is disclosed to reduce a moisture content level of a material that comprises irradiating a portion of the material with microwave to heat and vaporize moisture therewithin during a heating cycle; combining or alternating the microwave with RF heating for a time interval during the heating cycle to reduce the moisture content level of the material; and alternating the heating cycle with a cooling cycle. In certain aspects or embodiments, the system comprises at least an enclosure, a microwave delivery device, a radio-frequency emitter and power supply.

A method and apparatus for drying a wet textile article with a radio frequency (RF) applicator and a controller, the method includes supplying a power level to the RF applicator to energize the RF applicator to generate a field of electromagnetic radiation (e-field), determining a dynamic drying cycle of operation in the controller, and controlling the power level of the RF applicator according to the determination of the dynamic drying cycle of operation, wherein the wet article is dried.

A method and apparatus for drying a wet textile article with a radio frequency (RF) applicator and a controller, the method includes supplying a power level to the RF applicator to energize the RF applicator to generate a field of electromagnetic radiation (e-field), determining a dynamic drying cycle of operation in the controller, and controlling the power level of the RF applicator according to the determination of the dynamic drying cycle of operation, wherein the wet article is dried.

The invention discloses drying systems and drying processes, particularly designed to efficiently dry grains. The grain drying system of the invention comprises a machine consisting of a drying rotor characterized by containing thermal panels and having an efficient design that allows air circulation. Alternatively, the grain drying system is consisting of a drying rotor comprising thermal panels and an efficient air circulation system, together with a vacuum rest rotor for the grains. The invention also relates to a grain drying process comprising a stage in a drying rotor consisting of thermal panels and an efficient air circulation system, and optionally a second vacuum rest stage in a vacuum rest rotor, where the first and second stages alternate one, two, three or more times as required. In general, the systems and processes disclosed in the invention involve elements and stages that allow the grain to be dried by controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow, or through multiple stages that comprise controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow, the rest of the grains under vacuum, and a new stage of controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow thus achieving high efficiency in drying times without altering the structure of the grains and without generating polluting emissions, since the system does not require fossil fuels for its operation.

The invention discloses drying systems and drying processes, particularly designed to efficiently dry grains. The grain drying system of the invention comprises a machine consisting of a drying rotor characterized by containing thermal panels and having an efficient design that allows air circulation. Alternatively, the grain drying system is consisting of a drying rotor comprising thermal panels and an efficient air circulation system, together with a vacuum rest rotor for the grains. The invention also relates to a grain drying process comprising a stage in a drying rotor consisting of thermal panels and an efficient air circulation system, and optionally a second vacuum rest stage in a vacuum rest rotor, where the first and second stages alternate one, two, three or more times as required. In general, the systems and processes disclosed in the invention involve elements and stages that allow the grain to be dried by controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow, or through multiple stages that comprise controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow, the rest of the grains under vacuum, and a new stage of controlled heating of the grain by exposure to electromagnetic radiation and efficient air flow thus achieving high efficiency in drying times without altering the structure of the grains and without generating polluting emissions, since the system does not require fossil fuels for its operation.

The present invention is directed towards a process for upgrading lignite comprising: prior to production pre-assess the calorific value of the coal, by selecting a relational expression between a calorific value of lignite and a degree of metamorphism, a moisture content and an ash content thereof based on a ratio of the ash content to the moisture content, pre-assess the calorific value of the coal; combining a relational expression between a production cost and the ash content and moisture content to make a cost budget; determining degrees of deashing and drying; selecting and implementing a lignite ash reduction pretreatment process; and implementing dry sorting first and then drying. The upgrading process has high sorting efficiency, high drying efficiency and low production cost, and meets the requirement for the surface moisture of the raw coal in the dry sorting operation.