Abstract:
Heating an object, (food, wet clothing) having a variable weight that includes a medium (water) comprising: placing the object having the variable weight including medium into an enclosure; initiating a heating process by subjecting object with medium to a variable AC electrical field; and controlling the heating process. The object/clothing having a first "cool" state and therefore includes a maximum weight in the first "cool" state due to absorption of medium. The object is substantially free from the medium/water in a second "heated" state due to substantial evaporization of the medium from the object. Heating process is completed when the object is substantially transitioned into the second "heated" state. The method further comprises using an air flow having an ambient temperature inside the enclosure to carry away the evaporated medium from the enclosure.
Abstract:
The dryer comprises a multimode resonator chamber supported rotatably at uprights (13) by means of a rotation device and made of two truncated cones (1,2) of different heights and a cylindrical section (3) which connects the cones to each other at their larger bases, a rotational vacuum tight joint (11) to a microwave energy waveguide input (12), a chamber blowdown device with an air duct (15), and a chamber volume pumping out device with a dielectric duct (18) extending from a chamber bottom (17) edge along its axis through a rotational vacuum seal (16) near the bottom plane and bent upwards relative to the horizontal base (14) of the dryer, a horn antenna (8) disposed between the rotational vacuum seal (11) and the higher truncated cone (1) the horn of which antenna being closed, at the output, by a radio transparent partition (9) with a through hole (10) in its center contactless position pickups (.23) disposed at uprights (13) near the horn antenna (8). The chamber being supported at the uprights (13) at an angle between 8- and 10- with the horizontal base (14). Furthermore, the cylindrical section of the chamber (3) is provided with a charging- discharging hatch (4) having a cover (5) and a vacuum and microwave seal (7). The height ratio of the higher truncated cone (1) to the cylindrical section (3) to the lower truncated cone (2) of the resonator is 0.75:1 :0.5 and an angle between the axis and generatrix of the higher truncated cone (1) being between 8- and 10-. The air duct of the chamber blowdown device (15) extends into a horn cavity of the horn antenna (8) near the radio transparent partition plane (9).
Abstract:
Mikrowellen-Vakuumtrocknungsanlage zur Trocknung von stückigem, pulverförmigem oder granulatförmigem Gut, umfassend einen rohrförmigen Vakuumbehälter mit einer Guteinlaßöffnung an seinem einen Ende und einer unteren Gutauslaßöffnung an seinem anderen Ende, eine nichtmetallische Trommel zur Aufnahme und Förderung des zu trocknenden Guts, die an ihre Stirnseiten offen ist, in dem Vakuumbehälter koaxial angeordnet und mittels eines Antriebs zu einer Drehbewegung antreibbar ist sowie eine Innenfläche aufweist, die so ausgebildet ist, daß sie bei Drehung der Trommel das durch die Guteinlaßöffnung eingebrachte zu trocknende Gut in Richtung zum Ende des Vakuumbehälters mit der Gutauslaßöffnung fördert, mindestens einen Mikrowellen-Generator und mindestens ein Mikrowellen-Einkoppelelement, das von dem Mikrowellen-Generator gespeist wird und in den Innenraum des Vakuumbehälters mündet, Mikrowellen-Vakuumtrocknungsanlage mit mindestens zwei Trocknungsstationen, durch die Trommeln geführt werden und Verfahren zur Trocknung von stückigem, pulverförmigem oder granulatförmigem Gut mittels Mikrowellen in einem Vakuumbehälter.
Abstract:
A microwave rotary drying machine, wherein hot air is supplied from a hot air feeding device (30) into a rotary drum (11) and microwave is transmitted from a microwave transmitting device (50) after residual processed food has been charged into the rotary drum (11) and while being stirred, because the residual processed food in the rotary drum (11) is heated by hot air from the front surface side and simultaneously heated from the inside by microwave induction heating, the entire residual processed food is heated uniformly and dried uniformly in a short time so as to produce dried matter and, in addition, because the residual processed food can be dried without overheating, the dried matter is not carbonized, and dried up to an optimum moisture content, whereby the dried matter capable of being used as dry food material and livestock feed can be provided.
Abstract:
The invention relates to a microwave vacuum drying system (100) for drying lumpy, powdery or granulated products (170), comprising a tubular vacuum container (110) having a product inlet (120) on one end and a product outlet (130) on the other end, and a non-metallic drum (2) for receiving and transporting the product (170) to be dried. Said drum is open on the front sides thereof, coaxially arranged in the vacuum container (110), can be rotatably driven by means of a drive, and comprises an inner surface designed such that, when the drum (2) rotates it transports the product (170) to be dried, inserted via the product inlet (120), towards the end of the vacuum container (110) comprising the product outlet (130). The invention also relates to at least one microwave generator (49) and at least one microwave injection element which is fed by the microwave generator (49) and ends inside the vacuum container (110). The invention further relates to a microwave vacuum drying system (110) comprising at least two drying stations through which drums (190-195) are guided, and to methods for drying lumpy, powdery or granulated products (170) by means of microwaves in a vacuum container (110).
Abstract:
A drying apparatus (10) for drying sphagnum moss comprises a rotatable drum (12) in which moss to be dried is supported and two rows of infrared lamps (14) which are located in the drum for heating the moss. The drum (12) has a first end (20) defining an entrance opening (24) through which moss is introduced into the drum and a second end (22) defining a discharge opening (26) through which moss is discharged. The drum (12) includes a number of curved vanes which act on the moss as the drum rotates thereby to cause it to be displaced from the first end 20 to the second end (22). As the drum rotates, the moss is turned over allowing for effective heating of all sides of the moss. The lamps (14) provide for contact-less directional heat transfer to the moss so as to cause evaporation of moisture therefrom.
Abstract:
Wastes treatment equipment for food and drink, comprising a magnetron (oscillator) capable of simply generating microwave without using heaters used before as heat sources for drying wastes, wherein such advantages of the microwave that can directly heat and dry the wastes themselves are utilized and such a structure that can flow air to most efficiently act on the promotion of the drying is used, whereby, as compared with a conventional drying by heaters, the wastes can be prevented from being overheated during treatment to emit odor, a drying time can be shortened, and the consumption of an energy used for drying can be suppressed.
Abstract:
The method of drying dielectric materials is based on at least 2 phases. In Phase I the reduced in size dielectric material is dried in the initial process starting from the initial moisture of the dielectric material in the range from 80% to 90% to the level of 20% to 45%. After that in Phase II the initially dried dielectric material is dried with the use of microwave energy, that is carried out in a rotating cylindrically shaped chamber with the use of pressure level from 1kPa to 6kPa and frequency of microwave energy in the range of 600 MHz t0 6 GHz and with the delivered microwave power of 2W to 40 W per gram of the dried material leading to obtain the moisture level of 8% to 30%. In this phase the material is heated up to the temperature not greater than 80 degrees Celsius. Subsequently the final drying process is carried out to obtain moisture level from 6 to 10%. The method to dry dielectric materials equipped with product preparation segment, initial drying, microwave chamber and final drying segment. The microwave chamber has a cylindrically shaped chamber of the form of a dielectric cylinder 5 inside its metal cavity 6 . Additionally, metal cavity 6 is connected to the vacuum pump 7 and is equipped with microwave generators 8 characterised by low ripples of microwave power Τ
Abstract:
A process for selectively dehydrating organic matter, and at the same time eliminating insects, larvae and insect eggs that are carried by the organic matter is provided. This process leaves the product free of all toxic chemicals. The process includes the use of selected narrow bands of infrared radiation. Narrow bands of infrared radiation are selected that most efficiently penetrate the product being processed. The color of the product, its physiological properties such as oil, sugar and water content are factors considered in the selection of the vacuum, temperature, and time of the process. The process is performed in a vacuum which reduces the vapor point of the target water or solvent contained in the product being processed and permits the process to be performed at a temperature that does not harm the product.
Abstract:
Embodiments of the present invention generally relate to a polymer treatment device (100) for providing a treatment to a polymer bed (4) having granules (2) of a polymer that are in a solid- state, a computer-readable medium associated with a controller thereof, and an associated molding system (1000). The polymer treatment device 100 includes a polymer supporter (110) with which to support, in use, the polymer bed (4), a radiant heater (120) with which to heat, in use, the polymer bed (4), a first fluid dispenser (140-1) with which to dispense, in use, a first treatment fluid (102-1), and a first fluid vent (150-1) with which to vent, in use, the first treatment fluid (102-1), along with a diffusate from the polymer bed (4) potentially entrained therewith. Furthermore, the first fluid dispenser (140-1) and the first fluid vent (150-1) are arranged to promote a flow of the first treatment fluid (102-1) through the polymer bed (4) in between the granules (2) thereof.