Herding Gmbh Filtertechnik

Envirodyne Technologies, Inc.

Herding Gmbh

Atz-evns

Urs Herding

Stefan Hajek

Walter Herding

Kurt Palz

David E O'Ryan

Wolfgang Raabe

Ralf Schneider

Timothy Hanna

Rolf Jung

Martina Marx

Stephan Prechtl

Dino Bethke

Frank Schimmelmann

Rainer Thurauf

Hans-Joachim Adlhoch

Reiner Thuerauf

Egid Koller

Rainer Scholz

Christoph Weih

Bernd Meindl

Johann Winter

Thomas P Tripepi

Julian Raabe

Reiner Thurauf

Reiner Thürauf

A filter device including at least one filter element adapted to filter a raw fluid and having a raw fluid side and a clean fluid side, the filter element having a clean fluid outlet arranged on the clean fluid side and extending in a first plane, at least one clean fluid collecting channel into which the clean fluid outlet opens; at least one compressed-air cleaning-off device adapted to generate a pressure pulse for cleaning-off foreign matter adhering to the filter element and to conduct the same through the clean fluid outlet to the filter element, wherein the compressed-air cleaning-off device is adapted to conduct the pressure pulse at least approximately along the first plane to the clean fluid outlet, wherein the compressed-air cleaning-off device comprises a compressed-air supply channel operationally coupled to a clean fluid collecting channel outlet and adapted to charge the clean fluid collecting channel with pressure pulses.

Filter device and method of cleaning-off a filter element of a filter device

The invention relates to a filter element having inherent stability and being porous to permit flow therethrough, comprising a filter body which forms a porous sintered structure and is constructed with filter body particles which are at least in part polysulfide particles. In addition, the invention relates to a method of manufacturing such a filter element.

Filter element

A filter device is proposed for cleaning gas entraining foreign bodies, including at least one filter unit having at least one filter surface on a raw gas side to which a raw gas stream containing foreign bodies can be supplied, wherein filtration aids can be supplied to the raw gas stream and/or the filter surface, and wherein filtration aids and/or foreign matter attached to the filter surface can be cleaned off. The filter device additionally includes a fluidized bed arrangement in which a carrier fluid stream can be generated such that cleaned-off filtration aids and/or foreign matter can be held at least in part as filtration aerosol in a surrounding of the filter unit and/or can re-attach to a filter surface.

Filter device and filter method

A method for filtering out foreign particles from a cooling lubricant used in a process of machining a workpiece includes providing an inherently stable, flow-porous filter element. The filter element comprises a porous main body made of joined plastics particles and having an afflux surface and a porous coating on the afflux surface for surface filtration. The porous coating first component particles and/or fibres, second component anti-adhesion particles to mitigate the adhesion of filtered out material to the porous coating and to facilitate cleaning of the filter element, with the first component particles and/or fibres and the second component particles being mixed in the porous coating, a solidified inorganic binder, and a set adhesive. The solidified inorganic binder and the set adhesive bind the first component particles and/or fibres and the second component particles to each other and to the porous main body. The cooling lubricant is first passed through the porous coating and thereafter through the porous main body of the filter element.

Filter element with coating for surface filtration

A reactor () for anaerobic waste water treatment is designed as a loop-type column reactor comprising a central flow channel (). In the annular space () between the central flow channel () and the reactor wall, there are positioned carrier elements () for immobilizing microorganisms, with flow passages being provided between adjacent carrier elements (). The lower portion of the reactor (), below the carrier elements, is designed as a space intended to receive waste water having microorganisms floating therein during operation of the reactor (). During operation, there are provided both floating microorganisms and microorganisms that are immobilized on the carrier elements. The waste water to be treated flows centrally downward and up again along the carrier elements (), with the flow being generated in part by the gas development of the microorganisms. The reactor is used to carry out a process for anaerobic waste water treatment, the reactor being suited for waste water treatment in the food processing industry and the feeding stuff industry as well as in the paper industry and the textile industry.

Reactor and method for anaerobic wastewater treatment

A method and system for separating a particulate contaminate from a contaminated liquid medium involves filtering the contaminated liquid medium with a filter element having an afflux surface made of plastic particles that are sintered together. The contaminated liquid medium is introduced into a vessel, brought into contact with the filter element, where the liquid medium is separated from the particulate contaminant, and the separated liquid medium withdrawn from the filter element.

Solid liquid filtration apparatus and method

A filter unit for exchangeable insertion in a housing of a filter system having a supporting component for supporting a filter unit in the housing; a multiplicity of individual, hollow filter elements wherein each filter element has an outer afflux surface for fluid to be filtered and an open surface portion for the outflow of filtered fluid from an interior of the filter element; and a casting resin. The hollow filter elements are united with the supporting component in such a manner that the filter elements are located substantially in their entirety on the second side of the supporting component. The filter elements are inherently stable filter elements composed with porously sintered together particles. The unification of the filter elements and the supporting component is effected by the casting resin covering the filter elements with a height of at least 1 cm. The casting resin slightly constricts the open surface portion of the filter elements and preferably constitutes the supporting component of the filter unit.

Filter unit suitable for exchangeable insertion in the housing of a filter system

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Ursensollen, Germany

Urs Herding