A method for producing a honeycomb structure including producing an unfired pillar shaped honeycomb body; placing the unfired pillar shaped honeycomb body on a receiving table such that the unfired pillar shaped honeycomb body stands thereon; conveying the unfired pillar shaped honeycomb body placed on the receiving table; drying the unfired pillar shaped honeycomb body after the conveying step, or drying the unfired pillar shaped honeycomb body during the conveying to obtain a honeycomb dried body; and firing the honeycomb dried body to obtain a honeycomb structure. The receiving table includes at least one protrusion. In the honeycomb formed body conveying step, the unfired pillar shaped honeycomb body is conveyed while supporting it by inserting the at least one protrusion of the receiving table into a bottom surface of the unfired pillar shaped honeycomb body placed on the receiving table.

A drying device contains an upper drying head and a lower drying head. The upper drying head is arranged above a transport plane, in which objects to be dried can be transported in a transport direction through the drying device. The lower drying head is arranged below the transport plane. The upper drying head and the lower drying head contain in each case at least one air outlet slot and the longitudinal directions of the air outlet slots essentially extending parallel to the transport plane and transversely to the transport direction, and in which slot planes, in which the air outlet slots extend, intersect the transport plane at angles which are greater than 0 and less than 90.

A drying device contains an upper drying head and a lower drying head. The upper drying head is arranged above a transport plane, in which objects to be dried can be transported in a transport direction through the drying device. The lower drying head is arranged below the transport plane. The upper drying head and the lower drying head contain in each case at least one air outlet slot and the longitudinal directions of the air outlet slots essentially extending parallel to the transport plane and transversely to the transport direction, and in which slot planes, in which the air outlet slots extend, intersect the transport plane at angles which are greater than 0 and less than 90.

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

A method of drying an organic material by microwave-vacuum drying below but close to the triple point of water has been determined to allow more conversion of microwaves to heat than would occur when microwave freeze-drying at lower pressures. The method comprises introducing the organic material into a microwave-vacuum dehydrator, exposing the organic material to microwave radiation in the dehydrator to dry the organic material by sublimation, and maintaining pressure in the dehydrator in the range of 0.5 Torr to 4.5 Torr. The method provides the benefits of reduced drying time, energy requirements and product temperatures, relative to dehydration done at lower vacuum pressures.

A vertical oven for panels includes trays configured to support mainly flat panels arranged in a multiple of two stacks circulating in opposed directions, such as the first stack moving in an ascending direction and the second stack in a descending direction. The trays are arranged at a distance from each other and the movement of the trays is such that at least one every other tray is withdrawn from the circulation, doubling the distance between the trays.

A vertical oven for panels includes trays configured to support mainly flat panels arranged in a multiple of two stacks circulating in opposed directions, such as the first stack moving in an ascending direction and the second stack in a descending direction. The trays are arranged at a distance from each other and the movement of the trays is such that at least one every other tray is withdrawn from the circulation, doubling the distance between the trays.

An installation has a process chamber defining an inner space having a tunnel-like form defining a receiving region for workpieces. The process chamber has a portal for the supply or discharge of workpieces and has a device for introducing gaseous fluid into the inner space. The device has a nozzle for producing a fluid stream curtain between the portal and the receiving region. A device supplies fresh air introduced into the receiving region at a side of the fluid stream curtain facing away from the portal. The installation has a pivotable guide contour projecting into the inner space and the nozzle or aperture is in the form of a slot which supplies the gaseous fluid to the inner space via the ceiling with a flow direction oblique relative to the floor. The gaseous fluid supplied via the nozzle to the inner space is guided on the guide contour.

An installation has a process chamber defining an inner space having a tunnel-like form defining a receiving region for workpieces. The process chamber has a portal for the supply or discharge of workpieces and has a device for introducing gaseous fluid into the inner space. The device has a nozzle for producing a fluid stream curtain between the portal and the receiving region. A device supplies fresh air introduced into the receiving region at a side of the fluid stream curtain facing away from the portal. The installation has a pivotable guide contour projecting into the inner space and the nozzle or aperture is in the form of a slot which supplies the gaseous fluid to the inner space via the ceiling with a flow direction oblique relative to the floor. The gaseous fluid supplied via the nozzle to the inner space is guided on the guide contour.