Abstract: A filter structure including a circular housing and annularly disposed individual filter chambers each containing a layer of bulk filter material with a centrally located waste channel having openings leading from each of the chambers above the surface of the filter material, an outer jet for each chamber for directing a cleaning agent along the top of the filter material, a separate supply for fresh filter material at the top of each chamber, clean gas discharge conduits located below the individual filter chambers and a cleaning gas jet connected to each of the clean gas discharge conduits leading downwardly from each of the chambers.

Abstract: An apparatus for conditioning a fluid stream or a flow of granular solids at high volume and low velocity comprising a substantially closed cylindrical body having its side walls defined by a permeable helical trough joined to a vertically inclined baffle; means to convey the fluid through the body and out through the permeable trough; in a fluid conditioning apparatus, the fluid being conditioned upon passing the fluid through the helical trough or through the helical trough and a layer of particulate supported thereon; and in a solids conditioning apparatus, the solids being supported on the helical trough, and being conditioned upon passing fluid through the solids and through the helical trough.

Abstract: Electrified filter bed apparatus includes inner and outer cylindrical bed-retaining structures for confining a granular bed therebetween. The inner cylindrical structure may comprise a cage of superposed frusto-conical louvers and the outer structure may comprise a similar cage or a perforated cylindrical, liquid-drainage sheet. A cylindrical bed electrode for electrically charging the bed granules is suspended between the retaining structures. The tubular bed surrounds an internal gas passage from which polluted gas flows through the bed from the inside out. Gas enters the internal passage from above through an ionizer section of the apparatus. The ionizer section may include a disc-type ionizer assembly in an ionizer tube. The tube may form an extension of the inner louver cage. A corona discharge may be formed between the disc and the ionizer tube by providing electric current to the discs, whereby the corona discharge electrically charges particulate material within the gas stream.

Abstract: Apparatus is disclosed for use in the removal of molten particles from a hot gas. The hot gas carrying the molten particles is passed through a granular bed comprising, in succession, a stack of larger and a stack of smaller solids. Gas exiting the stack of smaller solids is substantially free of the molten particles. The vessel provided for housing the granular bed is adapted to allow the differently sized solids to move in their individual stacks. The vessel includes a single gas entry which is free of louvers or other permanent structural obstructions subject to clogging. The apparatus may be integrated into a coal gasification system or a combined cycle plant where a substantial proportion of the original sensible heat of the gas and of the particles is recovered for other uses.

Abstract: A vertical media bed dust collector in which the media bed of a filter panel is rejuvenated when necessary by interrupting the gas flow through the panel, withdrawing the filter media from the panel, separating the agglomerated dust from the filter media, returning the filter media to the filter panel, and reestablishing the gas flow through the panel. The system further includes apparatus for removing collected dust from the separating and recirculating surfaces of the media handling apparatus and also from the remote face of the filter panels before the cleaned gas is allowed to pass out of the collector so that the cleaned gas is not recontaminated by small amounts of dust adhering to those surfaces.

Abstract: A filter apparatus including a housing having a discharge apparatus for removing granular gas treating material from the hopper of the housing. The discharge apparatus includes a baffle plate extending across the hopper between the side walls of the housing which defines a material discharge channel opening into the interior of the hopper through a pair of parallel slots extending along the edges of the baffle plate, a conveying gas inlet aperture in one of the side walls opening into one end of the conveying channel, and a gas treating and conveying gas outlet aperture in the other side wall opening into the other end of the conveying channel of a larger cross-sectional area than the conveying gas inlet aperture to promote progressive aspiration of the treating material from the interior of the hopper commencing at the end of the channel proximate the conveying gas inlet aperture.

Abstract: A gas carrying solid particles is purified by electrically charging the solid particles and precipitating them by electrostatic means. The particles carrying gas flows in an enclosure wherein a space charge is formed by ion generators. Each ion generator comprises an injector tube which defines a chamber communicating with the enclosure via a small opening. Moist air is fed under pressure in the chamber and is accelerated in a tuyere in this opening. A corona discharge is formed at the neck of the tuyere by applying a high voltage between the tuyere and a coaxially arranged needle like electrode. Microparticles of ice are formed in the corona discharge zone by reason of the supersonic gas discharge in the tuyere. Ions trapped by these microparticles are driven out of the ion generators chamber into the enclosure wherein the gas stream to purify flows. These ions are freed by evaporation of the ice microparticles to form the space charge.

Abstract: An intermittently operated apparatus for cleaning dust laden gases has a gas-tight housing, a pair of spaced gas-permeable walls holding a filter bed consisting of granular filter material. A centrally located conveying pipe is mounted to the housing for regenerating the filter bed after a predetermined amount of operating time. A high electric potential is applied in the region of the filter bed for removing dust particles from the dust laden gas which is flowing through the permeable walls and the filter bed. From time to time, the gas cleaning mode is interrupted and the granular filter material of the filter bed is regenerated by fluidizing the same in the conveying pipe. A system comprising a plurality of such filtering apparatus always maintains one of the apparatus in a regenerating mode while the remaining filter devices are in gas cleaning mode. Thus, the simultaneous operation of cleaning and regenerating is accomplished. The use of a filter bed having a thickness of about 25 to 100 mm.

Abstract: A method for using comminuted lignocellulosic waste material such as flake-like wood and bark chips which have been stored outside includes placing the material in a filter bed by movement in a first direction, and thereafter passing polluted effluent gas from a boiler furnace, for example through said filter bed in a direction generally perpendicular to said first direction to filter pollutants from said effluent gas and simultaneously dry the comminuted lignocellulosic waste material. During drying of the material a portion of the material on the gas outlet side of the filter bed, toward which the effluent gas proceeds, is maintained at a moisture content which is greater than the average moisture content of the lignocellulosic material at the time it is placed into the filter bed. The lignocellulosic waste material is thereafter used as furnace fuel or as a furnace for an industrial process.

Abstract: Fly ash and fine dust in a gas stream from a coal combustor, for example, are efficiently collected in a 2-stage, tubular, granular bed filter. The stages of the filter are arranged one above the other so that the granules may move from the upper stage to the lower stage under the influence of gravity. Larger particulate in the gas stream is first collected by the lower stage, and then the remaining particulate is electrically charged and collected by the upper stage. Both stages are electrified sufficiently to rigidify the granular beds and adhere the particulate to the granules, so that the granules and the collected particulate move downwardly through the filters as a plug. Granules that exit from the lower stage are cleaned and returned to the upper stage. Non-porous granules may be used to prevent fine particulate from becoming embedded in the granules.

Abstract: The invention relates to an apparatus for the treatment of substances in a stream of gas, especially for the absorption and/or adsorption or for the filtration of gases, having a first chamber, having a second chamber, and having a plurality of cells situated axially one over the other between the first and second chambers, these cells being separated from one another and from the first and second chamber by walls and having in one of the walls at least one upper inlet opening in the upper part and in another wall at least one lower outlet opening in the lower part for a medium moving downwardly through the cells and consisting of solid particles, fresh medium being fed to each cell through the upper inlet opening and the medium being carried out of each cell through the lower outlet opening by a sweeping means moving transversely relative to this cell or perpendicularly to the axial direction, and wherein a gas forming the gas stream enters the cells at least partially at the outlet apertures and flows throu

Abstract: A fluidized bed filtering and heat exchange apparatus particularly for treating gaseous discharges from internal combustion engines and industrial plants comprises a vertical-axis elongated casing (10) having a filler of inert, particulate material therein, a gas feed manifold (36) provided with discharge nozzles arranged to direct gas downwardly into said casing (10) to maintain said filler in a fluidized state, and a cyclone (58) communicating with the upper part of said casing (10) to receive said gas therefrom and to separate agglomerated particles from said gas. Heat-exchange means are provided for cooling the fluidized filler including a plurality of tubes (46) for carrying a heat-exchange fluid therethrough.

Abstract: Method and apparatus for dusting off gases by filtration and cleaning of filter by aspiration and application thereof to combustion gases.This invention relates to the filtration of dust loaded gases, in particular, combustion gases in the hot state. It consists of passing gases to be dusted off from top to bottom over a bed of pulverulent material, in particular, a sand bed and cleaning the upper layer of said bed by aspiration of dusts deposited thereon. This invention is particularly adapted for dusting off combustion gases from boilers or thermal power stations or gases to be supplied to gas turbines.

Abstract: A device for producing solid aluminum chloride from gas containing gaseous aluminum chloride by means of a fluidized bed condenser. Between the inlet pipe for carrier gas and an outlet pipe for residual or waste gas there is a distributor plate with openings in the form of nozzles, at least one cooling facility, a feeding facility for the supply of gas containing gaseous aluminum chloride and a facility for drawing off the solid aluminum chloride. The outlet pipe for waste or residual gas is connected to the inlet pipe for carrier gas via a separator which separates out fine particulate aluminum chloride, which is then fed back to the bed to act as nuclei.

Abstract: A multi-stage moving bed type adsorption device which comprises a unit made of a chamber filled with adsorbent particles which chamber is defined by fore and rear louvers, the distance therebetween being larger downwardly, fore and rear lower walls extending downwardly from the lower end of the respective louvers, the distance therebetween being narrower downwardly, and two right and left side walls, an inverted V-shaped cross-sectional rectifying body extending horizontally from the right side wall to the left side wall and a rectifying plate extending downwardly from the top of said rectifying body vertically, the latter two means being located in the lower region of the said chamber, a plurality of said units being placed one upon another and communicated mutually by virtue of a coupling means consisting of vertical fore and rear walls and side walls; a gas-circulating vessel including a plurality of thus communicated units therein; an adsorbent particle inlet port provided at the top of the uppermost unit

Abstract: A filter apparatus includes a filter housing having a gas treating enclosure portion and a hopper portion disposed below and open to the gas treating enclosure portion. The gas treating enclosure portion encloses a plurality of spaced apart filter cells which are to be filled with granulated gas treating material. The filter cells have open bottoms open to the hopper portion. A gas treating material conveying channel is disposed within and extends across the hopper portion of the housing proximate the bottom thereof. The interior of the channel is open to the interior of the hopper portion only intermittently along the longitudinal sides of the channel. Further, a conveying gas inlet aperture is formed through one wall of the hopper portion opening into the channel at one of its ends, and a gas treating material and conveying gas outlet aperture is formed through the opposite wall of the hopper portion opening into the channel at the other of its ends.

Abstract: De-dusting of gases is carried out in an apparatus containing a granular-bed filter, the pourable granular filter medium flowing downward through the bed. The apparatus comprises a vessel of rectangular cross-section with a vertical side wall (4) extending from the top to the bottom. A partition (5), arranged parallel to the side wall (4), extends from the upper end of the vessel into the interior of the vessel. The remaining three side walls of the vessel extend - at least starting from a level corresponding to the lower end of the partition (5), taperingly downward to the outlet (9). The partition (5) is supported by the two walls adjacent to the vertical wall and forms, together with these and with the talus (7) of the filter medium, which arises at the lower end of the partition, a chamber (3) into which the inlet (2) for the gas to be purified opens.

Abstract: Fly ash and fine dust in a gas stream from a coal combustor, for example, are efficiently collected in a 2-stage, tubular, granular bed filter. The stages of the filter are arranged one above the other so that the granules may move from the upper stage to the lower stage under the influence of gravity. Larger particulate in the gas stream is first collected by the lower stage, and then the remaining particulate is electrically charged and collected by the upper stage. Both stages are electrified sufficiently to rigidify the granular beds and adhere the particulate to the granules, so that the granules and the collected particulate move downwardly through the filters as a plug. Granules that exit from the lower stage are cleaned and returned to the upper stage. Non-porous granules may be used to prevent fine particulate from becoming embedded in the granules.

Abstract: A filter material charging apparatus for adding a gas treating material into gas treating cells contained in a filter housing includes an open bottomed gas treating material conveying channel and air evacuation conduits located in the filter housing over the gas treating cells. Air-borne filter material is delivered to the conveying channel from a source outside the filter housing. Baffles are located in the channel to distribute gas treating material over the length and breadth of the filter housing, and into the gas treating cells as the gas treating material exits the channel through its open bottom. The air which carried the filter material into the housing is evacuated from the interior of the filter housing by the air evacuating conduit.

Abstract: Disclosed is a granular bed dust collector system in which the granular bed of a filter panel is rejuvenated when necessary by interrupting the gas flow through the panel, withdrawing the granular filter media from the panel, dedusting the filter media to dislodge and separate the collected dust from the granules, returning the granular filter media to the filter panel, and reestablishing the gas flow through the panel. One filter panel or a plurality connected in parallel can be serviced, preferably sequentially, by a dedusting unit comprised of a plurality of surfaces which are inclined with respect to the vertical and are spaced both vertically and horizontally so that the filter media cascades from one surface to the other while the dust falls in between.

Abstract: A plate bed filter is operated by allowing the filter medium, i.e. granules to pass continually from top to bottom. The filters may be placed in pairs in a horizontal duct with blanking walls to guide all the gas being filtered to pass therethrough. Alternatively the filter may be located in a vertical duct.

Abstract: In an apparatus for cleaning hot gases a filter housing has an inlet for unfiltered gas and an outlet for filtered gas. A plurality of filtered inserts are placed within the housing in a manner capable of filtering undesirable components from the gas feed stream. Each filter insert is made of a fibrous filter material. Silicic-acid glass fibers have a silicic acid content of at least 90%. Coated upon the fibers and absorbed into their pores is a metal oxide of aluminum, titanium, zirconium, cromium, nickle or cobalt. A honeycombed cage filled with high temperature resistant perlite is located within the housing between the gas inlet and the fiber inserts. The cage has an inlet and outlet external to the housing for replacing the perlite. A combustion chamber mounted in the housing has a discharge nozzle located so that the nozzle is directed at the filter inserts. Combusting materials in the chamber causes an explosive backflow of gases through the filter inserts.

Abstract: An apparatus for removing particulate matter from a gas stream includes a sorbent injector, a charging antenna, and a plurality of granular media filter cells. The gas stream containing the particulate matter is directed through an inlet plenum. The sorbent injector, located within the inlet plenum, injects fine particles of a sorbent material toward the charging antenna for electrostatically charging the sorbent particles. The charged sorbent particles form a large charged surface area for inducing charges on the particulate matter entrained by the gas stream. The plurality of filter cells each include inner and outer perforated, concentric cylinders, and granular media is caused to move downward between the inner and outer cylinders of each filter cell.

Abstract: The present invention provides a method and apparatus for continuously treating a flowing gas with a liquid to remove unwanted materials from the gas. Packing elements are directed downwardly along a predetermined zigzag path of travel, with the packing elements being maintained in the form of a relatively thin layer. A liquid is directed onto the layer of packing elements while a flowing gas is directed upwardly along a sinuous path of travel repeatedly passing back and forth through the downwardly moving layer of packing elements successively from opposite sides thereof. The packing elements are discharged from the lower end of the path of travel while clean packing elements are directed into the upper end to replace those which are discharged. The discharged packing elements are cleaned and recycled for reuse.

Abstract: A process for flue gas desulfurization or nitrogen oxide removal in a fluid using a magnetically stabilized fluid cross-flow contactor of the panel or radial reactor type wherein ferromagnetic bed solids are structured or stabilized by the action of a magnetic field.

Abstract: Apparatus for effecting fluid-solids contacting wherein a bed stationary downward moving ferromagnetic particles are contacted within a contacting chamber with a fluid which passes through the bed in a cross-flow manner, said bed being structured or stabilized, by a magnetic field the improvement which comprises providing at least one support means positioned near or adjacent to the opening means, said support means extending into the contacting chamber. Also disclosed are processes for using the improved magnetically stabilized cross-flow contactor including processes for removing particulates from gaseous streams, flue gas desulfurization processes and the like.

Abstract: Apparatus for effecting fluid-solids contacting wherein a bed of stationary or downward moving ferromagnetic particles are contacted with a fluid which passes through the bed in a cross-flow manner, said bed being structured or stabilized, by a magnetic field. Also disclosed are processes for using the magnetically stabilized cross-flow contactor including processes for removing particulates from gaseous streams, flue gas desulfurization processes and the like.

Abstract: Apparatus for effecting fluid-solids contacting wherein a bed of stationary or downward moving ferromagnetic particles are contacted within a contacting chamber with a fluid which passes through the bed in a cross-flow manner, said bed being structured or stabilized, by a magnetic field, the improvement which comprises providing louver means attached below at least one of the openings of the contacting chamber, said louver means which extend upward and outward from the openings in the direction of the incoming gaseous fluid and the balance of the louver extending outward and downward toward the incoming gaseous fluid stream. Also disclosed are processes for using the improved louvered magnetically stabilized crossflow contactor including processes for removing particulates from gaseous streams, flue gas desulfurization processes and the like.

Abstract: A process for the removal of particulates entrained in a fluid using a magnetically stabilized fluid cross-flow contactor of the panel or radial reactor type wherein ferro-magnetic bed solids are structured or stabilized by the action of a magnetic field.

Abstract: Energy or power is recovered from blast furnace exhaust gas by passing it through coarse dust removing mechanism, and then passing the gas through a dry moving bed type dust collecting mechanism for final dust removal, thereafter the blast furnace exhaust gas is supplied to a top pressure recovery turbine.

Abstract: The apparatus according to the invention comprises a casing. The casing consists of two chambers: an inlet chamber and a filtering chamber each having a conical receptacle for collecting solid chlorides. The inlet chamber and the filtering chamber are provided each with guide webs and are separated from each other by a partition wall comprising a gas duct. The gas duct establishes a communication between the lower portions of the chambers in such a manner that the inlet end of the gas duct is arranged under the guide webs of the inlet chamber and the outlet end is arranged under the guide webs of the filtering chamber. The filtering chamber has inlet pipes for admission of pulp. A pipe for admission of a chloride pulp is arranged above the guide webs at a distance of from one to two times the diameter of the filtering chamber. The pipes for an oxychloride pulp is arranged below the guide webs which are permanently covered with a filtering material.

Abstract: The present invention relates to a filter apparatus for the purifying of gases, having at least one filter space which has at least one upper inlet and one lower inlet for a filter medium containing solid particles which passes through said space, the gas to be purified flowing through said space in countercurrent to the filter medium. In this filter apparatus, at least one removing device which moves relative to the filter space, for instance a scraper, is provided at the outlet for the filter medium, said device moving through a cone of the filter medium which forms at the outlet so as to remove, in each case, at least a part of the filter medium from the cone.

Abstract: An improved withdrawal means for removing spent adsorbent from the adsorber beds of a filter apparatus is disclosed comprising a fixed tube and a rotatable tube positioned concentrically and having a different pattern of slots through each so that a different portion of the slots in each come into an aligned relationship as the rotatable tube is rotated so that spent adsorbent can be pneumatically removed from zones where the slots are aligned. This withdrawal means allows the external selection of adsorbent withdrawal zones, which is especially important in filter apparatus used to filter fluids containing radioactive contaminants.

Abstract: Fines are removed from a fines-containing fluid by fluidizing a bed of fluidizable solids with the fines-containing fluid at conditions avoiding fluid spouting at the bed surface, the bed solids being preferably at least two orders of magnitude greater in size than the particles, and being coated with a substance whose stickiness changes during its residence time in the bed. Particles adhere to the transiently sticky solids and can be recovered for re-use. Useful for cleaning dusty gases and recovering catalyst from cracker flue gas.

Abstract: A method for removing particulate matter from a gas stream by injecting charged particles into the gas stream to form a large charged surface area to induce charges on the entrained particulate matter. The injected material may be an adsorbent or an absorbent and may be reactive with the gases in the gas stream. The charged particles contained in the gas stream together with the injected particles are passed through a porous moving bed of media such as silica rock; as a result of the electrical charge as well as inertial impact forces on the respective particles, the particles become attached to the media which is continuously changed after it has captured the fine particulate matter. The media, together with attached sorbent additive and particulate matter, may then be incorporated into a product the manufacture of which generated the particulate matter.

Abstract: A gas cleaning system having a gas filtering unit that is removably supported in a housing. The housing has a pair of rails containing upwardly open pockets. Hangers on the filtering unit have lips that fit into the pockets to support the unit on the rails in a selected position in the housing. A peripheral seal on the lower part of the housing engages the bottom of the filtering unit to insure that all the gas flows through the filtering unit. The gas filtering material is stored in chambers formed by spaced perforated walls in the unit. The tops of the chambers are closed with covers carrying the hangers.

Abstract: A filtering apparatus for filtering a fluid comprises two coaxial walls which are provided with openings for the radially-outward passage of the fluid to be filtered, granular filtering material being disposed between the walls. The fluid to be filtered is fed into the space bounded by the inner wall and the filtered fluid is abstracted from an annular chamber disposed about the outer wall. The inner wall is formed from a series of annular inclined vanes. A rotary shaft disposed coaxially within the inner wall carries blades which project between the vanes. The blades scrape deposited matter from the vanes and also scrape the radially innermost parts of the granular filter material from between the vanes. In accordance with the method of the invention, the filter material is emptied periodically from between the walls and this emptied material and the material removed by the blades is carried to a treating station for regeneration and re-cycling to the upper end of the space between the walls.

Abstract: A shell and two perforated cylindrical walls are radially spaced about a common vertical axis so as to define three coaxial spaces. A gas to be purified of suspended particles is admitted to the annular first space between the shell and a filter bed of granular material in the second space between the two perforated walls, and a purified gas is withdrawn from the third space. To clean the filter bed, granular material is conveyed from the lowermost portion of the second space through a conduit to a separating device above the topmost portion of the filter bed by a stream of conveying gas, and the gas entrains most of the particles from the granular material while the latter returns to the second space by gravity. The particle-laden conveying gas is introduced tangentially into the top portion of the annular first space where it is mixed with a scavenging gas passed through the filter bed from the third to the first space.

Abstract: A method for removing gaseous organic impurities from waste gases comprising contacting the waste gas with an absorbent composed of a biologically active compost having a medium degree of maturity obtained by the aerobic digestion of settled sludge or organic waste which has been treated with Actinomyces globisborus or Coprinus fungi. An apparatus for carrying out the process is also disclosed.

Abstract: A method and apparatus for separating undesirable components from a waste gas by adsorption of the components onto a granular adsorbent. The gas is caused to flow serially through two distinct side-by-side layers of adsorbent both moving parallel to one another in a direction perpendicular to the direction of gas flow. The adsorbent material is so controlled that the particles of the second layer to be contacted by the gas are less loaded with impurities than the particles of the first layer. In one embodiment, this result is achieved by moving the second layer faster than the first layer.

Abstract: A system for removing pollutants from gases in which one or more beds of activated char are formed in a housing along with passages for permitting the passage of the gases directly from the housing inlet to the outlet and passages for permitting passage of the gases from the inlet across the beds of activated char to the outlet. Damper means are associated with the first mentioned passages and are movable from an open position in which the gases pass through the first passages and a closed position in which the gases are directed through the second passages.

Abstract: A system for removing pollutants from gases in which one or more beds of activated char are formed in a housing having an upper chamber and a lower chamber. A first series of beds of activated char extend through both the lower chamber and the upper chamber and an additional series of beds of activated char are disposed only in the lower chamber. A system of passages and baffles are provided in the housing to direct the gases in the upper chamber through the first series of beds of activated char, and the gases in the lower chamber through the first series of beds of activated char and then through the additional beds of activated char, before the gases exit from the housing.

Abstract: Discharge apparatus for filter assembly for radioactive contaminants, the filter assembly including a housing with at least one filter bed therein, the discharge apparatus including a first conduit in fluid communication with an outlet from the filter bed, a closed tank in fluid communication with the first conduit and a second conduit, the second conduit being in fluid communication with a vacuum means with a filter element disposed between the tank and the vacuum means. Upon activation of the vacuum means, the vacuum means pneumatically conveys the filter material from the filter bed.

Abstract: A powdery substance in suspension state is heated with the high-temperature combustion waste gas exhausted from a glass tank furnace, and the air for combustion is heated with the thus heated powder substance. When the powdery substance employed is a raw material for preparing glass, the raw materials for preparing glass and the air for combustion to be supplied to the glass tank furnace are both heated therewith thereby contributing to effective recovery of the heat of the combustion waste gas.

Abstract: An improved radial flow moving bed reactor, or other type of fluid-solid contacting vessel, in which stagnant catalyst volumes are reduced. The improvement results from the placement of a plurality of catalyst collection scoops or a single discoid cover plate just above the catalyst withdrawal conduits in a manner which directs the removal of catalyst through an annular opening adjacent the inner catalyst retention screen.

Abstract: A method for removing by adsorption undesirable components such as sulphur dioxide, from waste gases, particularly flue gas. Activated carbon is located between two perforated walls. The flue gas to be cleaned, traverses the activated carbon. During shutdown or low-load operation of the plant, the flue gas is already cleaned in the adsorber or still remaining in the associated apparatus section, are fed back and are passed once more through the activated carbon. The fed-back flue gases may be cooled before being passed once more through the activated carbon. An inert gas at a pressure substantially above atmospheric may be injected in the adsorber installation. The temperature and/or the oxygen content of the fed-back flue gas is monitored. The activated carbon fill is divided by heat-insulated partitions into individual sections which are charged separately with fed-back flue gas.

Abstract: Apparatus for intermingling dust-carrying gas and bulk goods for treating either one, e.g. drying the bulk goods or scrubbing the gas, in a bed of the bulk goods aerated by the gas. The apparatus comprises a grating with through-flow openings for a first partial stream of the gas which are so directed that this first partial stream flows substantially horizontally from the outside and inwardly towards the middle of the bed and another gas inlet in the middle of the grating for introducing a second partial stream of the gas from below and upwardly in the bed. A dust separator is arranged for scrubbing the first partial stream before it is supplied to the through-flow openings of the grating. The other gas inlet is connected so that the second partial stream is supplied to the grating more rich in dust than the first partial stream.

Abstract: Pulverulent solid sorption agent is injected into a stream of noxious-contaminant-containing gas subjected to intensive turbulence and then separated from the gas. The solid sorption agent is optionally reused until exhausted, or purified before reuse. Apparatus is provided for the process.

Abstract: Filter charging apparatus for filter assembly for removal of radioactive contaminants in a fluid stream, the filter assembly including a housing with at least one filter bed therein and the filter charging apparatus for adding filter material to the filter assembly includes a tank with an opening therein, the tank opening being disposed in flow communication with opposed first and second conduit means, the first conduit means being in flow communication with the filter assembly housing and the second conduit means being in flow communication with a blower means. Upon activation of the blower means, the blower means pneumatically conveys the filter material from the tank to the filter housing.

Abstract: A glass making furnace having a preheater and recycling structure including a tubular housing having a lower gas receiving stack section, a top in the form of an inverted cone, a glass batch pellet containing intermediate section, having a lower portion over the cone and about the intermediate section, gas ports in the side of the cone, shield means over the ports, a discharge valve in the lower portion below the cone part, a hot gas stack extending over the upper portion of the pellet section, a fan or hot gas ejector at the top of the stack, a damper above the fan or hot gas ejector connecting with a pressure controller within the furnace for maintaining the pressure in the furnace slightly above atmospheric, an inlet valve outwardly of the upper portion of the pellet section to control the entrance of the pellets, a regenerator on each side of the melting section and port and burner means communicating with each regenerator, a reversing valve connected with the regenerators and the melting section, and a p