摘要:
Several computerized tools, methodologies and data structures, according to embodiments of the present invention, are disclosed for collecting data for UX research and development directed to a product, process, and system and for developing personas and scenarios from the data for designing and for measuring the effectiveness of the product, process, and/or systems for use by the personas or real people. The tools, methodologies and data structures may be used individually or in sets.
摘要:
A smoothing device of a press arrangement for dewatering a fibrous web in a machine for producing or finishing the fibrous web including a rough belt, a smooth belt and a smoothing element. The rough belt being endless and water-absorbing. The rough belt arranged on a side of the fibrous web. The smooth belt is endless and arranged on an opposite side of the fibrous web. The rough belt, the fibrous web and the smooth belt running through a press nip together and the rough belt is led away from the fibrous web after passing through the press nip. The smoothing element forms a smoothing nip with the smooth belt after the rough belt is led away from the fibrous web, the smoothing element having a smooth pressing surface.
摘要:
Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure.
摘要:
Press section for drainage of a fibrous material web that includes a shoe press roll, a cylindrical counter roll, at least one nip, a first nip of the at least one nip formed by the shoe press roll and the cylindrical counter roll, and at least one press felt. The at least one press felt is disposed on each side of the fibrous material web. The at least one press felt travels through a last nip of the at least one nip where the at least one press felt is separated from the fibrous material web and conveyed away after leaving the last nip. The drainage capacity and the reliable guidance of the fibrous material web are improved.
摘要:
Press section and method of using the same for drainage of a fibrous material web that includes a shoe press roll, a cylindrical counter roll, at least one nip, a first nip of the at least one nip formed by the shoe press roll and the cylindrical counter roll, and at least one press felt. The at least one press felt is disposed on each side of the fibrous material web. The at least one press felt travels through a last nip of the at least one nip where the at least one press felt is separated from the fibrous material web and conveyed away after leaving the last nip. The drainage capacity and the reliable guidance of the fibrous material web are improved.
摘要:
Press section of a machine for producing a fibrous web and process for pressing a fibrous web. The press section may include at least two shoe press units including at least one press shoe and a revolving flexible press belt, a counterpart face, at least two nips having a length extended in a web travel direction and formed by each at least one press shoe pressing the revolving flexible press belt against the counterpart face. A length of the extended nip may be at least substantially the same as a length of the at least press shoe length, measured in the web travel direction, forming the extended nip and at least one of the shoe press units having press shoe length different from the other shoe press units, whereby various extended nip length are formed. The process may include positioning a first of the at least two nips upstream, with respect to the web travel direction, a last of the at least two nips, wherein one of the first and last nips has a nip length greater than the other and applying different pressing forces in the at least two nips such that the one of the first and last nip having a greater length has a lesser pressing force applied.
摘要:
Process and device for drying a moving web. The process includes vaporizing moisture in the web, creating a blanket of compressed air along a first surface of the web, and the blanket of compressed air directing the vaporized moisture in a direction from the first surface toward a second surface of the web that faces away from said blanket of compressed air. The device includes an air-tight guide element positioned adjacent to the moving web and positioned to create a blanket of compressed air between the moving web and the air-tight guide element
摘要:
Condensation device and suction element including a condensation device for machines for manufacturing and refining a fibrous material web. The condensation device includes at least one condensation element positioned in a region of at least one of steam formation and accumulation and a condensate receptacle. The suction element includes a hollow body coupled to a vacuum source. The hollow body is adapted to guide a transport belt carrying a moist and heated web. The suction element also includes at least one opening positioned to face the transport belt, at least one condensation element, and at least one condensate receptacle. The at least one condensation element and the at least one condensate receptacle are positioned within the hollow body.
摘要:
A process for operating a press section for producing a fibrous material web, with a nip that is elongated in the direction of web travel that includes an inlet zone, a main pressing zone, and an outlet zone, and where a pressure gradient of pressure p exerted in the main pressing zone of the nip is selected as a function of whether the fibrous material web entering in the nip has an average or high dry matter content, on the one hand, or a low dry matter content, on the other hand.
摘要:
A machine and method for producing a material web, e.g., a paper or cardboard web. The machine includes a dryer group having a plurality of dryer cylinders and web guide rolls. A dryer (or guide) belt may guide the material web around the dryer cylinders and web guide rolls in a meandering or winding path. The dryer group may include a cooling device that cools the dryer belt by exerting an air current on the dryer belt after separation from the material web. The method may include drying the material web in a region of the dryer group in which the material web is held and guided between the dryer belt and each drying cylinder, and substantially preventing drying of the material web in a region of the dryer group in which the material web is transferred from one drying cylinder onto a subsequent one.