The production method includes a drying step of drying a particulate crosslinked hydrogel polymer obtained by polymerizing a monomer, which is a material of a water-absorbent resin, using a heating device to obtain dried particles. The heating device includes: a rotary container that contains the particulate crosslinked hydrogel polymer therein and rotates; and a plurality of heating tubes that are located within the rotary container, extend in an axial direction of the rotary container, and rotate together with the rotary container. A gel temperature of the particulate crosslinked hydrogel polymer to be subjected to the drying step, the gel temperature being measured by a contact thermometer, is not lower than 50° C.

A spray drum system includes a drum drying device and a spray device. The spray device is configured to spray solid particles on the drum drying device. The spray device includes a feeding hopper, a vibrator, a pneumatic conveyor and a high-pressure air source. The feeding hopper is configured to accommodate the solid particles. The vibrator is connected with an output port of the feeding hopper and configured to vibrate the feeding hopper and output the solid particles and control an output rate of the solid particles. The pneumatic conveyor is configured to receive the solid particles output from the vibrator and spray over the drum drying device. The high-pressure air source is connected with the pneumatic conveyor and configured to supply a gas driving force required to transport and spray the solid particles.

Laundry separating devices that are configured to be inserted within a laundry drying chamber of a dryer machine are disclosed. The devices include a central frame having at least two sides with a first telescoping extender. The devices include at least two side arms connected to the central frame, with each side arm including a telescoping extender. The devices include a set of joints that connect the two side arms to the central frame, which allow each of the side arms to rotate about an axis. The devices include a set of telescopic clutches, with a clutch included in each of the central frame and the two side arms (the telescopic clutches are configured to allow the telescoping extenders to be lengthened, shortened, and locked into a desired position). The devices further include at set of separation panels, which are configured to be reversibly connected to the central frame and the two side arms.

Laundry separating devices that are configured to be inserted within a laundry drying chamber of a dryer machine are disclosed. The devices include a central frame having at least two sides with a first telescoping extender. The devices include at least two side arms connected to the central frame, with each side arm including a telescoping extender. The devices include a set of joints that connect the two side arms to the central frame, which allow each of the side arms to rotate about an axis. The devices include a set of telescopic clutches, with a clutch included in each of the central frame and the two side arms (the telescopic clutches are configured to allow the telescoping extenders to be lengthened, shortened, and locked into a desired position). The devices further include at set of separation panels, which are configured to be reversibly connected to the central frame and the two side arms.

A method for processing demineralized bone fibers, comprising a centrifuging step, and following the centrifuging step hydrated in sterile water to create a slurry; providing a tray to receive said fiber slurry; freezing the tray and fiber slurry; and lyophilizing the fiber slurry to create dried fibers.

A method for processing demineralized bone fibers, comprising a centrifuging step, and following the centrifuging step hydrated in sterile water to create a slurry; providing a tray to receive said fiber slurry; freezing the tray and fiber slurry; and lyophilizing the fiber slurry to create dried fibers.

A dehydrator apparatus for dehydrating biological material. The apparatus includes an external housing, and a vessel supported within said external housing and spanning in a longitudinal direction thereof in elevated relation from a bottom of the housing. A loading inlet feeds into said vessel from outside the housing for admission of biological material. An air intake feeds into the housing to deliver heated air thereto from a hot air source, and air routing components within the external housing guide the heated air into heat exchange relationship with the vessel itself, and also into heating and aerating exposure to contents of said vessel. An agitator is installed in operable relation to the vessel to agitate the material fed thereinto via the material inlet. An exhaust outlet exhausts the heated air from the housing after having heated and aerated the vessel and its contents.

The present disclosure relates to a drying apparatus for a powder raw material for manufacturing a secondary cell with an electric heater. In an embodiment of the present disclosure, a plurality of independently controlled heaters are mounted on a main body of an apparatus in which a plurality of heating regions are defined, and the temperature deviation of the internal chamber can reduce by providing the amount of heat supplied to each heating region through the control of the plurality of heaters. The main body of the apparatus includes a cylindrical portion in which the powder raw material is accommodated and sidewalls on both sides of the cylindrical portion, and by installing heaters on the cylindrical portion and the sidewalls, respectively, the entire region defining the main body of the apparatus can be evenly heated.

The invention relates to a process and apparatus for ultrasonic assisted drying of materials, in particular, but not exclusively, for the low temperature drying of materials that are heat sensitive. In particular, there is provided an apparatus for dehydration of water containing material comprising: an ultrasound emitter; an ultrasound transmission platform that directly or indirectly supports said material; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material. There is also provided a method of dehydration of water containing material comprising locating the material either directly or indirectly on an ultrasound transmission platform of a dehydration apparatus that comprises: an ultrasound emitter; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material; and exposing said material to ultrasound energy and drying gas flow for a time and under conditions suitable to achieve desired extent of dehydration of said material. In another aspect there is provided a material that has been dehydrated using the method or apparatus described above.

The invention relates to a process and apparatus for ultrasonic assisted drying of materials, in particular, but not exclusively, for the low temperature drying of materials that are heat sensitive. In particular, there is provided an apparatus for dehydration of water containing material comprising: an ultrasound emitter; an ultrasound transmission platform that directly or indirectly supports said material; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material. There is also provided a method of dehydration of water containing material comprising locating the material either directly or indirectly on an ultrasound transmission platform of a dehydration apparatus that comprises: an ultrasound emitter; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material; and exposing said material to ultrasound energy and drying gas flow for a time and under conditions suitable to achieve desired extent of dehydration of said material. In another aspect there is provided a material that has been dehydrated using the method or apparatus described above.