This invention relates to a rotary dryer with multi-drying chambers which is developed and improved for drying materials such as cassava chip, paddy, corn, various crops, longan, fertilizer, biomass and mining industry with better drying efficiency.

An apparatus and method for a low pressure laundry treating appliance having a cabinet defining an interior, and a drum provided within the interior, the drum including at least an inner wall and an outer wall. Pressure differentiations and flash evaporation can enable drying without excess use of conventional heating methods.

A rotary vacuum drum drying system is described. The system may include a plurality of sensors and a control system operatively coupled with the plurality of sensors. The control system includes a processing device to receive, from the plurality of sensors, a plurality of parameters of the rotary vacuum drum drying system and transmit, to a client device, the plurality of parameters of the rotary vacuum drum drying system. The processing device is further to receive, from the client device, a message comprising an adjustment one or more parameters of the plurality of parameters and adjust the one or more parameters of the plurality of parameters based on the received message.

An apparatus and method for a low pressure laundry treating appliance having a cabinet defining an interior, and a drum provided within the interior, the drum including at least an inner wall and an outer wall. Pressure differentiations and flash evaporation can enable drying without excess use of conventional heating methods.

Disclosed is a vacuum roaster including a chamber, a door cap formed on one side of the chamber so as to be opened or closed, a vacuum cap formed on an opposite side of the chamber, a basket spaced apart from an inner circumferential surface of the chamber, and including a basket door that is opened or closed for introduction and discharge of an object to be processed, a vacuum adjustment device for adjusting a vacuum state inside the chamber, a drive motor connected to the basket via a shaft for rotating the basket, and a heater provided inside the chamber so as to be spaced apart from the basket.

Hot air drying is an intensive energy consuming process, 5000-8000 kJ per kg of water. More efficient processes produce low drying rates or cannot totally dry the product because they do not integrate the four drying phases, warm up, constant drying, falling drying and aeration and do not handle dripping. To reduce the energy consumption, the exhausted mix of air and vapor is used as working fluid to drive each phase, and the dripping is collected before it goes back to the product. This fluid is compressed inside of a heat-exchanger to heat the product; however, the mix proportion, vapor and air, changes on each phase. For warm up phase, the working fluid is either hot air or condensed water; in constant phase, it is mostly vapor; in falling phase, it changes from vapor to air; and for aeration, it is air. Inlet and outlet valves control these proportions.

The invention relates to a freeze-drying device comprising: an evaporation chamber (5) comprising heating means (15, 16), a condensing chamber (10) communicating with the said evaporation chamber, the said evaporation chamber (5) and the said condensing chamber (10) being mounted secured to one another about an axle (30) capable of rotating, characterized in that the device further comprises: a products inlet and outlet (1, 8) which are connected to the said evaporation chamber (5) by flexible connectors, the products inlet and outlet (1, 8) being mounted fixedly with respect to the evaporation chamber, and a motor (12) driving the said axle (30) on itself with the following back-and-forth movement: a first movement driving the said axle (30) in a first direction of rotation with an angle of rotation (1) of between 5 and 90, and a second movement driving the said axle (30) in a second direction of rotation, opposite to the first angle of rotation, with an angle of rotation (2) of between 5 and 90.

An apparatus and method for a low pressure laundry treating appliance having a cabinet defining an interior, and a drum provided within the interior, the drum including at least an inner wall and an outer wall. Pressure differentiations and flash evaporation can enable drying without excess use of conventional heating methods.

A method for the production of freeze-dried pellets comprising factor VIII comprises the steps of: a) freezing droplets of a solution comprising factor VIII to form pellets; b) freeze-drying the pellets; wherein in step a) the droplets are formed by means of droplet formation of the solution comprising factor VIII into a cooling tower which has a temperature-controllable inner wall surface and an interior temperature below the freezing temperature of the solution and wherein in step b) the pellets are freeze-dried in a rotating receptacle which is housed inside a vacuum chamber.

In conventional methods for cleaning the surface of workpieces in automatic production by means of vapor or hot water, the temperature of workpieces can undergo such a change that the dimensions exceed tolerances as a result of the thermal expansion, and subsequent mounting or processing is only possible after a thermal treatment step. Cleaning is performed by scanning a jet of vapor or hot water over the surface of the workpiece and carrying out this process at reduced pressure, so that the residues of condensed vapor or water that are present on the surface evaporate at least partially, and thereby extract from the workpiece heat that has been supplied by the vapor or the hot water. Preferably, the cleaned surface is at the same time dried.