A facility for industrial drying and/or encapsulation of thermolabile substances comprising at least one injection unit (1) wherein the thermolabile substance is introduced, an encapsulating material when the facility is used to encapsulate, a solvent, additives and an injection gas flow for obtaining droplets from the thermolabile substance. It further comprises a drying unit (2) through which the droplets and a drying gas are introduced for evaporating the solvent and comprises a collection unit (3) configured to separate the microcapsules generated from the drying gas and which is selected from a cartridge filter collector, a cyclone collector or a combination of the two. It also describes a method for the industrial encapsulation of thermolabile substances which is carried out at the proposed facility.

A system for producing free-flowing powder with a narrow particle size distribution from liquid compositions comprising in combination: a feeding reservoir comprising said liquid compositions: a pumping device to pump said liquid composition into at least one atomizing device: said at least one atomizing device composed of at least one fluid nozzle to distribute an upward gaseous drying medium over said nozzle: two lateral streamlined tube-like devices for supplying said liquid composition and pressurized gas to said at least one nozzle from two opposite directions: a cylindrical plenum chamber wherein the fluid nozzle is located: an accelerating zone of a drying medium consisting of a cylindrical pipe located at the bottom of the cylindrical plenum: a conical-cylindrical drying chamber equipped with a manhole, a multi-nozzle manifold and insulation panels: and an intermediate drying medium consisting of a single bed or multi-beds of inert carriers within the drying chamber.

A system for producing free-flowing powder with a narrow particle size distribution from liquid compositions comprising in combination: a feeding reservoir comprising said liquid compositions: a pumping device to pump said liquid composition into at least one atomizing device: said at least one atomizing device composed of at least one fluid nozzle to distribute an upward gaseous drying medium over said nozzle: two lateral streamlined tube-like devices for supplying said liquid composition and pressurized gas to said at least one nozzle from two opposite directions: a cylindrical plenum chamber wherein the fluid nozzle is located: an accelerating zone of a drying medium consisting of a cylindrical pipe located at the bottom of the cylindrical plenum: a conical-cylindrical drying chamber equipped with a manhole, a multi-nozzle manifold and insulation panels: and an intermediate drying medium consisting of a single bed or multi-beds of inert carriers within the drying chamber.

A nozzle part dropping a slurry and a rotary disk centrifugally spraying the slurry to be dropped from the nozzle part are included. The rotary disk includes a plurality of grooves stretching in a radiation direction at least in a periphery part of a surface on which the slurry is sprayed.

A nozzle part dropping a slurry and a rotary disk centrifugally spraying the slurry to be dropped from the nozzle part are included. The rotary disk includes a plurality of grooves stretching in a radiation direction at least in a periphery part of a surface on which the slurry is sprayed.

An electrostatic spray dryer for drying liquid into powder including an elongated cylindrical drying chamber having an electrostatic spray nozzle at an upper end and a powder collection vessel at a lower end. The powder collection vessel includes a removable and replaceable filter collections sock made of filter material for receiving and collecting dried powder from the drying chamber. For cleaning residual powder from an inside wall of the drying chamber, a scraper member is provided that is coupled by magnetic attraction to a manually removable driver on the external surface of the wall.

An electrostatic spray dryer for drying liquid into powder including an elongated cylindrical drying chamber having an electrostatic spray nozzle at an upper end and a powder collection vessel at a lower end. The powder collection vessel includes a removable and replaceable filter collections sock made of filter material for receiving and collecting dried powder from the drying chamber. For cleaning residual powder from an inside wall of the drying chamber, a scraper member is provided that is coupled by magnetic attraction to a manually removable driver on the external surface of the wall.

Disclosed is an electrostatic spray drying process for encapsulating a core material, such as a volatile flavor oil, within a carrier or wall material. The process is achieved by atomizing a liquid emulsion comprising the core material and the wall material, applying an electrostatic charge at the site of atomization, and drying the atomized emulsion into an encapsulated, free-flowing powder. Applying an electrostatic charge at the site of atomization allows the spray drying to be accomplished at significantly reduced temperatures, in particular, inlet temperatures in the range of 25° C. to 110° C., and outlet temperatures in the range of 25° C. to 80° C. The low drying temperatures impart improvements in the resulting encapsulated powdered product, including better retention of volatile flavor components, a flavor profile comparable to that of the starting liquid formulation, and better hydration and dissolution in water-based applications.

Disclosed is an electrostatic spray drying process for encapsulating a core material, such as a volatile flavor oil, within a carrier or wall material. The process is achieved by atomizing a liquid emulsion comprising the core material and the wall material, applying an electrostatic charge at the site of atomization, and drying the atomized emulsion into an encapsulated, free-flowing powder. Applying an electrostatic charge at the site of atomization allows the spray drying to be accomplished at significantly reduced temperatures, in particular, inlet temperatures in the range of 25° C. to 110° C., and outlet temperatures in the range of 25° C. to 80° C. The low drying temperatures impart improvements in the resulting encapsulated powdered product, including better retention of volatile flavor components, a flavor profile comparable to that of the starting liquid formulation, and better hydration and dissolution in water-based applications.

The invention provides a process for preparing dispersion powders by spray drying of aqueous polymer dispersions of polymers of one or more ethylenically unsaturated monomers selected from the group encompassing vinyl esters, methacrylic esters, acrylic esters, olefins, dienes, vinylaromatics, and vinyl halides with a drying gas in a nozzle atomization dryer, characterized in that the aqueous polymer dispersion (feed), before being atomized, is preheated under pressure to a temperature of 100° C. to 200° C. and is atomized at this temperature, the pressure being set such that the aqueous phase of the polymer dispersion does not boil at the temperature selected.