An apparatus for treating a slurry substance comprising: a support structure; a dryer system including drums rotatably mounted to the structure, the drums arranged on the structure to form a throat therebetween; a drive system to rotate the drums; a heating system for heating an outer cylindrical surface of the drums; and a collecting system under the throat configured to collect the substance. The apparatus further comprises at least one feed conveyor wherein the at least one feed conveyor includes a feed plate directing a substance to the throat; and wherein the heating system includes at least one heating element in the hollow cavity configured to heat a heating fluid received within the drums. The system is further characterized by an embodiment wherein the at least one heating element is an electrically powered resistive element and wherein each of the drums has a plurality of the electrically powered resistive elements, the plurality of the electrically powered resistive elements being circumferentially distributed.

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.

A device for industrial drying of a suspension or solution containing a solid material is provided, comprising a rotatably mounted cylinder having electrically conductive properties and comprising a surface for receiving the suspension or solution, and an inductor adapted to heat the cylinder inductively. The inductive heating causes that the suspension or solution received on the surface of the rotatably mounted cylinder dries and the solid material is left. Furthermore, further devices, a system, a device package, and a method for industrial drying of a suspension or solution are introduced.

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.

The present disclosure provides for a continuous drying apparatus and a method of using the apparatus in the preparation of dried solids from slurries. The methods and apparatus are useful for the production of fine chemicals and pharmaceuticals, particularly using Integrated Continuous Manufacturing (ICM), but can also be integrated with other manufacturing processes, such as batch and semi-continuous processes.

A complex type dryer includes a rotational cylinder, a drying material, a hot air provider, a hot air chamber and a scraping unit. The drying material provider is disposed over the rotational cylinder and coats a drying material on a surface of the rotational cylinder. The hot air provider is connected to both sides of the rotational cylinder, and includes first and second hot air tubes. The first and second hot air tubes alternately provide a hot air into the rotational cylinder or alternately exhaust the hot air passing through the rotational cylinder. The hot air chamber is disposed along an outer surface of the rotational cylinder outside of the rotational cylinder. The scraping unit is disposed at a side of the rotational cylinder, and removes the drying material from the surface of the rotational cylinder after dried by the rotational cylinder and the hot air chamber.

The present disclosure provides for a continuous drying apparatus and a method of using the apparatus in the preparation of dried solids from slurries. The methods and apparatus are useful for the production of fine chemicals and pharmaceuticals, particularly using Integrated Continuous Manufacturing (ICM), but can also be integrated with other manufacturing processes, such as batch and semi-continuous processes.

A multi-pass drying process for a wet substance is disclosed. Said multi-pass drying process comprises the steps of passing the wet substance through at least two different drying stages to produce a semi-dried product between the drying stages, with stirring and ventilating the semi-dried product between each drying stage, wherein the wet substance or the semi-dried product is subjected to compression while being heated in at least one of the drying stages. The multi-pass process ensures a high degree of control over the final dried product and allows certain flexibility to ensure higher throughput. Such a multi-pass drying process is suitable when seeking to obtain food products such as dried food premix or food ingredients, where the final dried product needs to be of high dryness to attain longer shelf life, high nutritional content, strong aroma and to be superior in other organoleptic properties.

A system for the discharge of evaporated product moisture from a drum dryer, comprising: a vapour hood for collecting evaporated product moisture from the drum dryer; a discharge fan for discharging evaporated moisture from the vapour hood; control means to control the fan, for example to adapt a volume flow rate of the discharge fan to a volume flow rate of evaporated moisture under the vapour hood; wherein the hood sealingly engages the drum of the drum dryer.

The invention also provides a method for the discharge of evaporated product moisture from a drum dryer, wherein the volume flow rate of the fan is such that an interface between vapour and air is located below a top of the drum of the drum dryer.

A drying apparatus includes: a heat drying section that heats a medium to which a liquid has been applied from a first surface side of the medium; a temperature adjusting section that adjusts a temperature of the medium from a second surface side of the medium, the second surface being on the opposite side to the first surface; and a control section capable of controlling the heat drying section and the temperature adjusting section. The control section controls the heat drying section and the temperature adjusting section individually in accordance with the type of the medium.