Abstract: A scraper bar is used in a plant for producing a paper web with a sieve belt. The sieve belt is movable over the scraper bar transversely with respect to the longitudinal extent of the scraper bar. The scraper bar has wearing elements which face toward the sieve belt, are mounted on a supporting bar and are arranged one after the other in the direction of the longitudinal extent of the scraper bar. The supporting bar has supporting bar elements which are arranged one after the other in the longitudinal extent and which are preferably connected to one another and on which the wearing elements are fastened.

Abstract: A scraper bar is used in a plant for producing a paper web with a sieve belt. The sieve belt is movable over the scraper bar transversely with respect to the longitudinal extent of the scraper bar. The scraper bar has wearing elements which face toward the sieve belt, are mounted on a supporting bar and are arranged one after the other in the direction of the longitudinal extent of the scraper bar. The supporting bar has supporting bar elements which are arranged one after the other in the longitudinal extent and which are preferably connected to one another and on which the wearing elements are fastened.

Abstract: With a method for digesting starch, an aqueous slurry of the starch is treated with steam in a cooking vessel and in this case exposed to shear forces, wherein the starch-containing slurry is heated to a temperature of between 85?C and 110?C in the cooking vessel by introducing steam, and the digestion step is implemented until the desired degree of digestion has been reached. Also described is a cooking vessel that can be used when the method for digesting starch is being carried out.

Abstract: An apparatus for cleaning a felt in a system for producing a paper web has a device for introducing a cleaning liquid into the felt and at least one following suction device in the direction of movement of the felt and having a vacuum duct, through which the cleaning liquid is suctioned out of the felt. The suction device between the vacuum duct and the felt is formed with suction ducts, through which the cleaning liquid in the felt is suctioned away. At least one of the suction ducts is assigned an inflatable valve element. In the inflated state of the valve element the suction duct is closed and in its ventilated state the suction duct is opened.

Abstract: A method and apparatus for measuring the moisture content of pulp material on a wire in an installation for producing paper. The apparatus includes a measuring device for measuring the moisture content of the pulp material. The apparatus has a moisture sensor, a control and data processing unit assigned to the measuring device, and a transmitting and receiving device and/or a connection for a data line for transmitting the measured data to the control and data processing unit. The measuring device for measuring the moisture content of the pulp material includes a pressure measurement device for determining and displaying a pressure range with which it is being pressed against the wire. The contact pressure is controlled and taken into account during the measurement of the moisture content.

Abstract: An apparatus for adjusting a scraper bar in a line for producing a paper web, having a wire, assigned to which are scraper bars oriented transversely to its direction of movement and situated at a distance from one another. The scraper bar is supported by a support bar and is adjustable with respect to the support bar and with respect to the wire by means of a positioning device. The scraper bar and the support bar are coupled together by way of links that are mounted thereon. The distance or the angular position of the scraper bar with respect to the support bar and thus with respect to the wire is adjustable by a displacement of the scraper bar with respect to the support bar.

Abstract: A drainage foil for use in an installation for producing a paper web with a fabric belt, which can be moved over a multiplicity of drainage foils oriented transversely to a direction of movement. A surface of the drainage foil is formed with a defined profiling, which has elevations and/or depressions. The vertical extent of the profiling is at least 0.1 mm.

Abstract: A paperband tearing strip for severing a paper web that moves from a papermaking plant onto a winding drum. The tearing strip is composed of a paper strip which has two longitudinally running lateral folds along which the paper strip is folded on top of itself. The central strip part in relation to the lateral strip parts has a thickness which is at least 1.5 times greater, and the width of said central strip part is at least one fifth of the width of the paper strip. The widths of the lateral strip parts each are at least one tenth of the width of the central strip part. The central strip part is formed with at least one fold on account of which the central strip part is configured to be at least quadruple-layered.

Abstract: An apparatus for adjusting a scraper bar in a line for producing a paper web, having a wire, assigned to which are scraper bars oriented transversely to its direction of movement and situated at a distance from one another. The scraper bar is supported by a support bar and is adjustable with respect to the support bar and with respect to the wire by means of a positioning device. The scraper bar and the support bar are coupled together by way of links that are mounted thereon. The distance or the angular position of the scraper bar with respect to the support bar and thus with respect to the wire is adjustable by a displacement of the scraper bar with respect to the support bar.

Abstract: An apparatus for cleaning a felt in a system for producing a paper web has a device for introducing a cleaning liquid into the felt and at least one following suction device in the direction of movement of the felt and having a vacuum duct, through which the cleaning liquid is suctioned out of the felt. The suction device between the vacuum duct and the felt is formed with suction ducts, through which the cleaning liquid in the felt is suctioned away. At least one of the suction ducts is assigned an inflatable valve element. In the inflated state of the valve element the suction duct is closed and in its ventilated state the suction duct is opened.

Abstract: A method and apparatus for measuring the moisture content of pulp material on a wire in an installation for producing paper. The apparatus includes a measuring device for measuring the moisture content of the pulp material. The apparatus has a moisture sensor, a control and data processing unit assigned to the measuring device, and a transmitting and receiving device and/or a connection for a data line for transmitting the measured data to the control and data processing unit. The measuring device for measuring the moisture content of the pulp material includes a pressure measurement device for determining and displaying a pressure range with which it is being pressed against the wire. The contact pressure is controlled and taken into account during the measurement of the moisture content.

Abstract: A paperband tearing strip for severing a paper web that moves from a papermaking plant onto a winding drum. The tearing strip is composed of a paper strip which has two longitudinally running lateral folds along which the paper strip is folded on top of itself. The central strip part in relation to the lateral strip parts has a thickness which is at least 1.5 times greater, and the width of said central strip part is at least one fifth of the width of the paper strip. The widths of the lateral strip parts each are at least one tenth of the width of the central strip part. The central strip part is formed with at least one fold on account of which the central strip part is configured to be at least quadruple-layered.

Abstract: A tearing tape which is composed of paper for severing a paper web which moves from a system for producing paper and is wound up on drums, in order as a result to make it possible for it to be wound onto an empty drum. Here, the tearing tape, in cross-section, has a central tape part and two lateral tape parts. The central tape part has a thickness that is at least 1.5 times greater than a thickness of the lateral tape parts.

Abstract: A conveying installation has least one endless conveyor belt guided via a plurality of rollers along a leading belt run for conveying material or products and a returning belt run, particularly for manufacturing a paper web with a wire belt or felt belt. At least one of the rollers has an adjustable mounting for adjusting and correcting a direction of movement of the conveyor belt. A tensioning unit for detecting and controlling a tension of the conveyor belt has a pressure-measuring apparatus disposed at the adjustable mounting. A movement correction unit for detecting deviations of a direction of movement of the conveyor belt from a correct movement and for correcting the movement includes a sensor that is disposed to monitor a lateral periphery of the conveyor belt. A sensor output of the sensor is used for adjusting the adjustable mounting of the one of the rollers.

Abstract: A conveying installation has least one endless conveyor belt guided via a plurality of rollers along a leading belt run for conveying material or products and a returning belt run, particularly for manufacturing a paper web with a wire belt or felt belt. At least one of the rollers has an adjustable mounting for adjusting and correcting a direction of movement of the conveyor belt. A tensioning unit for detecting and controlling a tension of the conveyor belt has a pressure-measuring apparatus disposed at the adjustable mounting. A movement correction unit for detecting deviations of a direction of movement of the conveyor belt from a correct movement and for correcting the movement includes a sensor that is disposed to monitor a lateral periphery of the conveyor belt. A sensor output of the sensor is used for adjusting the adjustable mounting of the one of the rollers.

Abstract: A tearing tape which is composed of paper for severing a paper web which moves from a system for producing paper and is wound up on drums, in order as a result to make it possible for it to be wound onto an empty drum. Here, the tearing tape, in cross-section, has a central tape part and two lateral tape parts. The central tape part has a thickness that is at least 1.5 times greater than a thickness of the lateral tape parts.

Abstract: An apparatus for spraying a liquid, such as a cleaning liquid or a lubricating liquid, onto a wire or onto a felt in a plant for paper production. The apparatus has pipeline for supplying the liquid and spray nozzles for ejecting the liquid. A shaft with a cleaning device for the spray nozzles or for the inner wall of the pipeline is disposed within the pipeline. The shaft includes a cylindrical sleeve which has a slotted guide and a thread and is arranged in a housing which adjoins the pipeline, the thread interacting with a control spindle and, furthermore, a bolt or the like being provided which can be adjusted transversely with respect to the housing and projects into the slotted guide in a first position, as a result of which, during a rotation of the control spindle, the shaft is displaced in the longitudinal direction of the pipeline.

Abstract: A device for releasably fastening a wire foil to a supporting strip in an installation for producing paper. The installation has a wire and wire foils that extend transversely with respect to the movement direction of the wire. The foils are situated at a spacing from one another in the movement direction of the wire and come into contact with the wire. Supporting strips for the wire foils are assigned to the wire foils and likewise extend transversely with respect to the movement direction of the wire. The wire foils or the supporting strips which are assigned to them are configured in their longitudinal direction with an undercut groove, and the supporting strips or the wire foils are configured with a spring which corresponds to the cross section of the undercut groove.

Abstract: A hydrofoil for a paper production installation has a side that faces the wire formed with a wear strip. The wear strip is formed with plates that are organized in layer and formed of ceramic material. The wear strip is formed by a plurality of layers which lie on one another, each of thin plates which are situated next to one another. The layers of ceramic material are connected to one another by adhesive layers.

Abstract: An apparatus for spraying a liquid, such as a cleaning liquid or a lubricating liquid, onto a wire or onto a felt in a plant for paper production. The apparatus has pipeline for supplying the liquid and spray nozzles for ejecting the liquid. A shaft with a cleaning device for the spray nozzles or for the inner wall of the pipeline is disposed within the pipeline. The shaft includes a cylindrical sleeve which has a slotted guide and a thread and is arranged in a housing which adjoins the pipeline, the thread interacting with a control spindle and, furthermore, a bolt or the like being provided which can be adjusted transversely with respect to the housing and projects into the slotted guide in a first position, as a result of which, during a rotation of the control spindle, the shaft is displaced in the longitudinal direction of the pipeline.