Device for distributing particles
AssigneeValmet Fibertech AB
InventorsStellan Jonasson, Heikki Salo, Lars-Erik Johansson
Life of this patent
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Abstract
Apparatus is disclosed for separating particles disposed in a carrier gas being delivered from a distributor to a moving web including a roller, a supply conduit for supplying the particles dispersed in the carrier gas substantially tangentially to the roller at a first speed, the roller rotating at a second speed which is substantially greater than the first speed whereby the particles are separated from the carrier gas, the roller including a discharge opening for discharging the particles toward the moving web and a return line for recycling the carrier gas. A method for separating particles dispersed in a carrier gas is also disclosed.
Claims18
Apparatus for separating particles dispersed in a carrier gas being delivered from a distributor to a moving web, said apparatus comprising a rotatable roll, supply means for supplying said particles dispersed in said carrier gas substantially tangentially to said rotatable roll at a first predetermined speed, means for rotating said rotatable roll at a second predetermined speed, said second predetermined speed being substantially greater than said first predetermined speed whereby said particles are separated from said carrier gas, said rotatable roll including a discharge opening for discharging said particles towards said moving web, and a return line for recycling said carrier gas, said return line being disposed directly adjacent to said rotatable roll at a location where said particles have been separated from said carrier gas.
A method for separating particles dispersed in a carrier gas being delivered from a distributor to a moving web, said method comprising rotating a rotatable roll, supplying said particles dispersed in said carrier gas substantially tangentially to said rotatable roll at a first predetermined speed, said rotatable roll rotating at a second predetermined speed, said second predetermined speed being substantially greater than said first predetermined speed whereby said particles are separated from said carrier gas, discharging said particles from said rotatable roll to a discharge opening, and recycling said carrier gas from a location directly adjacent to said rotatable roll where said particles have been separated from said carrier gas.
Apparatus for separating particles dispersed in a carrier gas being delivered from a distributor to a moving web, said apparatus comprising a rotatable roll, supply means for supplying said particles dispersed in said carrier gas substantially tangentially to said rotatable roll at a first predetermined speed, means for rotating said rotatable roll at a second predetermined speed, said second predetermined speed being from about 2 to 10 times said first predetermined speed whereby said particles are separated from said carrier gas, said rotatable roll including a discharge opening for discharging said particles towards said moving web, and a return line for recycling said carrier gas.
A method for separating particles dispersed in a carrier gas being delivered from a distributor to a moving web, said method comprising rotating a rotatable roll, supplying said particles dispersed in said carrier gas substantially tangentially to said rotatable roll at a first predetermined speed, said rotatable roll rotating at a second predetermined speed, said second predetermined speed being from about 2 to 10 times said first predetermined speed whereby said particles are separated from said carrier gas, discharging said particles from said rotatable roll to a discharge opening, and recycling said carrier gas.
Dependencies are inferred from the claim text.