Abstract: A coating/drying device including a first application device, a second application device and a drying device. The first application device for applying application medium to a first side of a fiber material web, moving in a running direction. The second application device for applying application medium to a second side of the fiber material web, the second side being opposite the first side. The second application device being an application device operating without contacting the fiber material web. The drying device is arranged downstream of the first application device and the second application device in the running direction of the fiber material web.

Abstract: A machine for one of producing and treating, and separately treating a material web including a material web dispensing device, at least one application apparatus, a drying device, a processing device and a material web smoothing device. The material web dispensing device dispenses a material web continuously. The at least one application apparatus is arranged along a material web path after the material web dispensing device. The application apparatus applies a liquid or a pasty application medium to at least one side of the web as it moves along the material web path. The at least one application apparatus including at least one contactless application unit discharging the application medium as a free application medium jet, an application medium curtain, an application medium veil or an application medium droplet spray.

Abstract: A machine for producing and treating a web of material including a material web forming device, a dewatering and drying section, at least one application apparatus, a drying device and a processing device. The material web forming device forms a material web continuously from a supplied fibrous suspension. The dewatering and drying section is arranged along a material web path after the material web forming device. The section extracts water from the web by way of at least one of thermal and mechanical action. The at least one application apparatus is arranged along the material web path after the dewatering and drying section. The apparatus applies liquid or pasty application medium to at least one side of the web. The drying device is arranged along the material web path after the application apparatus. The drying device dries the moving material web to a final drying state. The processing device is arranged along the material web path after the drying device.

Abstract: A machine for one of producing and treating, and separately treating a material web including a material web dispensing device, at least one application apparatus, a drying device, a processing device and a material web smoothing device. The material web dispensing device dispenses a material web continuously. The at least one application apparatus is arranged along a material web path after the material web dispensing device. The application apparatus applies a liquid or a pasty application medium to at least one side of the web as it moves along the material web path. The at least one application apparatus including at least one contactless application unit discharging the application medium as a free application medium jet, an application medium curtain, an application medium veil or an application medium droplet spray.

Abstract: A radiant element which is heated on its rear side by a burning fluid-air mixture and whose front side emits the infrared radiation. The radiant element is produced from a highly heat resistant material which contains more than 50% by weight of a metal silicide, preferably molybdenum disilicide (MoSi2) or tungsten disilicide (WSi2).

Abstract: A combustion chamber which is bounded on one side by a gas-permeable barrier, on the other side by a radiant element. The radiant element having a large number of ducts and emitting infrared radiation at its front surface. A jet plate with individual jets and the ducts of the radiant element are closed on the combustion chamber side, at least in the region of the outlet openings of the jets, by which baffle surfaces are formed, and toward which the outlet openings of the jets are aimed.

Abstract: A coating/drying device including a first application device, a second application device and a drying device. The first application device for applying application medium to a first side of a fiber material web, moving in a running direction. The second application device for applying application medium to a second side of the fiber material web, the second side being opposite the first side. The second application device being an application device operating without contacting the fiber material web. The drying device is arranged downstream of the first application device and the second application device in the running direction of the fiber material web.

Abstract: A machine for one of producing and treating, and separately treating a material web including a material web dispensing device, at least one application apparatus, a drying device, a processing device and a material web smoothing device. The material web dispensing device dispenses a material web continuously. The at least one application apparatus is arranged along a material web path after the material web dispensing device. The application apparatus applies a liquid or a pasty application medium to at least one side of the web as it moves along the material web path. The at least one application apparatus including at least one contactless application unit discharging the application medium as a free application medium jet, an application medium curtain, an application medium veil or an application medium droplet spray.

Abstract: A machine for producing and treating a web of material including a material web forming device, a dewatering and drying section, at least one application apparatus, a drying device and a processing device. The material web forming device forms a material web continuously from a supplied fibrous suspension. The dewatering and drying section is arranged along a material web path after the material web forming device. The section extracts water from the web by way of at least one of thermal and mechanical action. The at least one application apparatus is arranged along the material web path after the dewatering and drying section. The apparatus applies liquid or pasty application medium to at least one side of the web. The drying device is arranged along the material web path after the application apparatus. The drying device dries the moving material web to a final drying state. The processing device is arranged along the material web path after the drying device.

Abstract: A combustion chamber which is bounded on one side by a gas-permeable barrier, on the other side by a radiant element. The radiant element having a large number of ducts and emitting infrared radiation at its front surface. A jet plate with individual jets and the ducts of the radiant element are closed on the combustion chamber side, at least in the region of the outlet openings of the jets, by which baffle surfaces are formed, and toward which the outlet openings of the jets are aimed.

Abstract: A radiant element which is heated on its rear side by a burning fluid-air mixture and whose front side emits the infrared radiation. The radiant element is produced from a highly heat resistant material which contains more than 50% by weight of a metal silicide, preferably molybdenum disilicide (MoSi2) or tungsten disilicide (WSi2).

Abstract: Known gas-heated infrared radiators for infrared drying units have a radiator housing (1) that is subdivided by a gas-permeable burner plate (5) in a distribution chamber (6) for the gas-air mixture and a combustion chamber (7), the front side of which emits the radiation. The radiator is held by mixing tube (9) that is affixed to the rear side. A gas-air mixture is supplied to the distribution chamber (6) via said mixing tube (9). The mixing tube (9) has a gas nozzle (11) with a gas inlet (12) and an air inlet (17) on the end opposite the radiator housing (1). The mixing tube is affixed to a holding frame of the drying unit. In order to disassemble the infrared radiator from the infrared drying unit and to mount said radiator on said unit as rapidly as possible, the rear side of the radiator housing (1) is connected to the holding frame by releasable fixing means (20, 33-36) that can be released manually from the front side.

Abstract: An infrared irradiating heater having a radiating body with a housing comprised of a ceramic and having a planar radiating surface, a multiplicity of substantially flame-free passages extending perpendicular to the surface and opening at the surface, and a rear surface, the passages extending to the rear surface, the passages having lengths less than 300 mm, the total cross sectional area of the passages at the planar radiating surface being in a ratio to the area thereof in excess of 50%, and the passages having length to maximum diameter ratios of at least 5. A burner plate spaced from the rear surface defines a combustion chamber with it so that the combustion is effected substantially only in this combustion chamber and the passages are free from flame and serve as radiator surfaces.

Abstract: A method and apparatus for drying a moving material web, including pre-drying the web in an infrared dryer including at least one infrared radiator and drying the web in an air dryer including a dryer air, the air dryer operated such that a heat transfer coefficient between the dryer air and the web progresses in an ascending way as viewed in the direction of web travel.