Herding Gmbh Filtertechnik

Herding Gmbh Entstaubungsanlagen

Herding Gmbh

Atz-evns

Walter Herding

Urs Herding

Stefan Hajek

Klaus Rabenstein

Rolf Jung

Ralf Schneider

Wolfgang Raabe

Kurt Palz

Stephan Prechtl

Rainer Scholz

Rainer Thurauf

Johann Winter

Martina Marx

Hans-Joachim Burger

J Urgen Bethke

Peter Vogel

Walter Rausch

Dino Bethke

Egid Koller

Christoph Weih

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 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

Dimensionally stable, cross-flow permeable fluid treatment element

A filter element of sintered-together plastics particles having substantially the shape of a narrow, hollow box with two large, zigzag or corrugated first side walls, two narrow second side walls interconnecting the first side walls, a closed bottom side and an opposite open side, with the peaks and valleys of the first side walls extending in the bottom side to the open side and the filter element, at the open side, having a head for attachment which is elongated and constitutes at least one flow passage, characterized in that the filter element comprises two unified halves each containing one of the first side walls that a foot of synthetic resin is cast on the bottom side, and that the head consists of synthetic resin and is cast on the first and second side walls such that it surrounds with a first part of its heights the first and second side walls on the outside and the projects with a second part of its heights beyond the first and second side walls so as to cover the same at the ends thereof, and in that the head forms in the second part of its height, in the at least one flow passage an, in terms of flow, advantageous transition from the zigzag or corrugated space confined between the two first side walls to a substantially rectangular cross-section of flow.

Sintered plastic particles filter element

Fibre-coated filter element

Fixed-bed bioreactor and carrier body for purifying fluids

Filter element having an inherently stable, permeably porous plastic body

A filter for the separating of solids particles from hot, gaseous or liquid media, especially separating dust particles from hot flue gases in the temperature range of within 250.degree. C. to 800.degree. C., which consists of a permeable, inherently stable carrier material or substrate which is provided with larger pores; in essence, a support member in which the carrier material is constructed so as to be heat-resistant, and which especially contains constituents of non-corroding materials, such as glass, ceramic, metals or compounds thereof; and in which filter the carrier material can be produced through the intimate, partial bonding of the heat-resistant particles thereof, and wherein the carrier material also possesses a strucutre or, essentially, a spatial or three-dimensional configuration, which is correlated with the type of utilization and the specified capacity. The carrier material is covered at least on the outer surface along its mantle surface with a filler material allowing for finer pores, which is fine-grained and also heat-resistant, wherein the filler material is, in particular, applied as a thinner film-like coating on the carrier material, and in which this film material is constituted from particles of a dispersed mixture, of which one part is volatilized out of the mixture during a baking process, and in contrast therewith another part is introducible into the larger pores of the carrier material.

Filter for the separating of solids particles from hot, gaseous or

Carrier material for the immobilization of microorganisms, particularly for use in connection with microbiological conversion and/or separation of constituents from gaseous or liquid media, is disclosed. The carrier material comprises a dimensionally stable macroporous skeleton comprised of relatively coarse-grain granular material such as sinterable thermoplastic granules, and relatively fine grain microporous material, such as activated charcoal, which are bonded together. The carrier material thus comprises both macropores having a pore size of from about 10 to 200 .mu.m and micropores having a pore size of up to about 0.1 .mu.m depending upon the identity of the five grain microporous material that is used. Additional finely divided materials, such as catalytic agents or density modifying agents, may also be disposed within the macroporous skeleton. The preparation and use of the carrier material is also disclosed.

Carrier material for immobilization of microorganisms

Growing community of inventors

Hahnbach, Germany

Walter Herding