Abstract: A filter element of a rotating disc filter including an internal space thereof that is limited by one or more perforated and profiled filter plates and is connected to a vacuum source. Efficiency should herein be increased in that the outside of the filter plates that faces away from the internal space has a plurality of elevations, whose cross section is round or elongated and/or at least one filter plate on the outside facing away from internal space has a plurality of elevations of different shapes and/or sizes.

Abstract: A filter element of a rotating disc filter including an internal space thereof that is limited by one or more perforated and profiled filter plates and is connected to a vacuum source. Efficiency should herein be increased in that the outside of the filter plates that faces away from the internal space has a plurality of elevations, whose cross section is round or elongated and/or at least one filter plate on the outside facing away from internal space has a plurality of elevations of different shapes and/or sizes.

Abstract: A reactor for anaerobically purifying waste water, such as waste water from the paper industry, includes a reactor vessel that has at least one inlet for supplying waste water to be purified into the reactor, at least one outlet for discharging purified water, at least one sediment filter and at least two multi-phase separator devices arranged on top of one another.

Abstract: A reactor for anaerobically purifying waste water, such as waste water from the paper industry, includes a reactor vessel that has at least one inlet for supplying waste water to be purified into the reactor, at least one outlet for discharging purified water, at least one sediment filter and at least two multi-phase separator devices arranged on top of one another.

Abstract: A reactor for biological purification of waste water includes a reactor vessel having a substantially flat or a round bottom, at least one supply pipe arranged in a lower region of the reactor vessel for feeding the waste water to be purified into the reactor, at least one fluid discharge pipe for discharging purified waste water from the reactor, at least one solid matter discharge pipe arranged in the lower region of the reactor vessel for discharging solid matter from the reactor and at least one diverting means including at least one diagonally extending section. The at least one diverting means is designed and/or arranged so that solids sinking to the bottom of the reactor from the upper region of the reactor are deflected so that the solids settle in a region of the at least one solid matter discharge pipe and are discharged from the reactor through the at least one solid matter discharge pipe.

Abstract: The invention relates to a reactor for anaerobically purifying waster water, especially waste water from the paper industry, comprising a reactor vessel, several inlets arranged in the bottom region of the reactor vessel to feed waste water to be purified into the reactor, at least one outlet for discharging purified water, and at least one sediment drain. One or more inlets are fed by a supply pipe, and several supply pipes are fed by a collecting supply pipe. In order to ensure that waste water to be purified is fed as regularly as possible at the bottom of the reactor vessel, at least the majority of the supply pipes of a collecting supply pipe supply waste water to be purified to a maximum of 10 inlets, and at least the majority of said supply pipes each have a control valve.

Abstract: The invention relates to a reactor for anaerobically purifying waster water, especially waste water from the paper industry, comprising a reactor vessel, several inlets arranged in the bottom region of the reactor vessel to feed waste water to be purified into the reactor, at least one outlet for discharging purified water, and at least one sediment drain. One or more inlets are fed by a supply pipe, and several supply pipes are fed by a collecting supply pipe. In order to ensure that waste water to be purified is fed as regularly as possible at the bottom of the reactor vessel, at least the majority of the supply pipes of a collecting supply pipe supply waste water to be purified to a maximum of 10 inlets, and at least the majority of said supply pipes each have a control valve.

Abstract: A reactor for biological purification of waste water includes a reactor vessel having a substantially flat or a round bottom, at least one supply pipe arranged in a lower region of the reactor vessel for feeding the waste water to be purified into the reactor, at least one fluid discharge pipe for discharging purified waste water from the reactor, at least one solid matter discharge pipe arranged in the lower region of the reactor vessel for discharging solid matter from the reactor and at least one diverting means including at least one diagonally extending section. The at least one diverting means is designed and/or arranged so that solids sinking to the bottom of the reactor from the upper region of the reactor are deflected so that the solids settle in a region of the at least one solid matter discharge pipe and are discharged from the reactor through the at least one solid matter discharge pipe.

Abstract: Method for supplying fibrous suspension to at least one headbox that includes degassing a diluting liquid via rotation of a rotor of a degassing device to apply centrifugal forces to the diluting liquid, guiding the degassed diluting liquid out of the degassing device into a separate diluting water pump, and mixing at least a portion of the degassed diluting liquid with a high-consistency suspension to form the fibrous suspension.

Abstract: Degassing device that includes a housing, a rotor having a rotatable interior arranged within the housing, an inlet for adding a liquid to be degassed, the inlet being structured to open into the interior of the rotor, and an outflow for a degassed liquid. A degassing tube is centrally arranged with respect to the interior to remove gas escaping from the liquid. The rotor includes at least one opening structured and arranged to produce an hydraulic connection with the outflow.

Abstract: Degassing device that includes a housing, a rotor having a rotatable interior arranged within the housing, an inlet for adding a liquid to be degassed, the inlet being structured to open into the interior of the rotor, and an outflow for a degassed liquid. A degassing tube is centrally arranged with respect to the interior to remove gas escaping from the liquid. The rotor includes at least one opening structured and arranged to produce an hydraulic connection with the outflow.

Abstract: Method for supplying fibrous suspension to at least one headbox that includes degassing a diluting liquid via rotation of a rotor of a degassing device to apply centrifugal forces to the diluting liquid, guiding the degassed diluting liquid out of the degassing device into a separate diluting water pump, and mixing at least a portion of the degassed diluting liquid with a high-consistency suspension to form the fibrous suspension

Abstract: The invention relates to feeding a fibrous suspension to a headbox of a paper or cardboard machine, or to a filter device. The method includes: diluting a high-consistency suspension with a liquid to form a fibrous suspension; degassing the fibrous suspension via a degassing device having a rotating rotor, which is structured to apply centrifugal forces to the fibrous suspension; and guiding a degassed diluting liquid out of the degassing device.

Abstract: An apparatus and method serves, e.g., to deaerate, clean or screen a fibrous suspension and is provided with a closed housing and a rotor arranged centrally therein. The rotor puts at least a part of the fibrous suspension guided into the housing into a rotational flow. The fibrous suspension flowing into the housing through the inlet is put into rotation by a guide element acting hydraulically. This increase the efficiency of the apparatus and prevents disturbing turbulences in the apparatus.

Abstract: The present invention is directed to a process for the hot dispersing of a paper fiber stock that includes providing an aqueous paper fiber stock and pressing the aqueous fiber stock in a thickening device. In this manner, water is at least partially removed from the aqueous fiber stock to form a highly consistent paper fiber stock. The process further includes heating the highly consistent paper fiber stock, dispersing the heated highly consistent paper fiber stock with a disperser, determining a thermal energy consumed to heat the highly consistent paper fiber stock, and controlling a dewatering effect of the thickening device. The dewatering effect is increased with rising thermal energy consumption and is reduced with a falling thermal energy consumption. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: The invention serves to feed a fibrous suspension (S) to a headbox (1) of a paper or cardboard machine (2) or to a filter device. The fibrous suspension (S) can be generated, e.g., by mixing a high-consistency suspension (4) with a diluting liquid (5). The method uses at least one degassing device (6), the effect of which corresponds to that of a centrifuge. The method can be carried out in a space-saving manner and makes it possible, e.g., to omit large degassing containers.

Abstract: An apparatus and method serves, e.g., to deaerate, clean or screen a fibrous suspension and is provided with a closed housing and a rotor arranged centrally therein. The rotor puts at least a part of the fibrous suspension guided into the housing into a rotational flow. The fibrous suspension flowing into the housing through the inlet is put into rotation by a guide element acting hydraulically. This increase the efficiency of the apparatus and prevents disturbing turbulences in the apparatus.

Abstract: The present invention is directed to a process for the hot dispersing of a paper fiber stock that includes providing an aqueous paper fiber stock and pressing the aqueous fiber stock in a thickening device. In this manner, water is at least partially removed from the aqueous fiber stock to form a highly consistent paper fiber stock. The process further includes heating the highly consistent paper fiber stock, dispersing the heated highly consistent paper fiber stock with a disperser, determining a thermal energy consumed to heat the highly consistent paper fiber stock, and controlling a dewatering effect of the thickening device. The dewatering effect is increased with rising thermal energy consumption and is reduced with a falling thermal energy consumption. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Process and decker for bringing together a first aqueous pulp suspension layer with at least one additional suspension layer. The process includes moving the first pulp suspension layer and the at least one additional suspension layer on moving layer supports, and guiding sides of the first pulp suspension layer and the at least one additional suspension layer that are adapted to contact each other on guiding surfaces that are one of stationary and limitedly moving. The guide surfaces include contoured surfaces arranged to run substantially parallel to the layer supports. The process further includes applying the at least one additional suspension layer onto the first pulp suspension layer at a wedge-shaped gap, and draining the first pulp suspension layer and the at least one additional suspension layer. The decker includes at least one rotating cylinder, and an endless wire guided around at least a portion of an outer circumference of the at least one rotating cylinder.

Abstract: Paper stock pulper and process for guiding a suspension in paper stock pulper. The stock pulper includes a container having a side wall and front walls adjacent the side wall, and the process includes driving a plurality of rotors to produce a plurality of intake flows directed toward the side wall, deflecting the plurality of intake flows about 90° on the side wall so that the plurality of intake flows flow along at least a part of the side wall, and deflecting, with at least one flow directing device, at least a part of the suspension flowing along the side wall and flowing toward at least one of the front walls or an adjacent rotor from the at least one front wall or the adjacent rotor.