Abstract: Disclosed device for separating a mixture of gas with liquid and/or solid, which comprises a gravity separation vessel and a processing vessel which can be mounted in the gravity separation vessel. The processing vessel comprises a flow body which is provided with one or more swirl elements which set the feed mixture into rotation. The processing vessel also comprises a resistance element which is positioned between an outlet for the heavier fraction of the mixture and the flow body. The processing vessel may also comprise counter-swirl elements which are positioned in the discharge channel for the lighter fraction of the mixture.

Abstract: A device for reducing pressure loss of a cyclone dust collector is disclosed, in which a turbulence flow generated when inlet air into a cyclone body is discharged out through an air outlet passage can be laminated. The device for reducing pressure loss of a cyclone dust collector prevents fine dust as well as relatively weight dust from being contained in discharge air.

Abstract: Methods are provided for the reduction in entrainment of solids and liquids, and loss of valuable chemicals such as catalysts, in processing and refining sequences that employ separation devices in which non-vapors are to be separated from vapors. The methods comprise regulating the velocities of the incoming stream and the vapor being separated, and creating and maintaining the flow of the incoming stream tangentially to the inner surface of the separation vessel, so as to aid in the reduction in entrainment and loss of valuable chemicals.

Abstract: A device for recovering powder in an installation for spraying pulverulent coating product. The device includes: at least one cyclone for separating the powder recovered in the installation and its conveying air, and a sieve associated with the or each cyclone. The device further includes a perforated plate disposed on the path of the recovered powder, between the cyclone and the sieve.

Abstract: A cyclone separator for separating a solid particulate from the gas or liquid medium is described. The separator is provided with a housing (H), an outlet (4) for discharging the solid particulate separated from the medium, a pipe (13) for evacuating the clean fluid from the housing (H) and a swirling means capable of imparting vortical motion to the medium. The swirling means is formed with a plurality of slit-like openings (16) arranged on the periphery thereof.

Abstract: To supply clean air throughout entire racks even if the height of the racks in an automatic warehouse is increased. A blower motor 18 is provided at the bottom of racks 10 and 11 to suck air in a loading space 12 and supply it to a clean air path 20. In addition, air flows from a ceiling clean fan unit 8 to the racks 10 and 11 via an air intake port 24, and the air flowing from the racks 10 and 11 to the loading space 12 is sucked by means of a blower motor 18.

Abstract: A hard bag cleaner door is disclosed having air directing rib vanes integral with its inner surface. These vanes take the form of, alternately, angled J-shaped ribs and short straight interleaved ribs. All the ribs are stepped so that the flow passage for air moving along the interior side of the bag door diverges as more bag air is introduced to it so that it directs efficiently air flow to a lower disposed motor-fan section of an adjoining hard bag portion. In a second embodiment, an exhaust opening is formed in the hard bag cleaner door below the air directing rib vanes and is covered by a final filter and final filter door. The air moving along the interior side of the bag door is directed out the exhaust opening, through the final filter which filters small dust particles which may be present in the exhaust air and out vent openings formed in the final filter door.

Abstract: A hard bag cleaner door is disclosed having air directing rib vanes integral with its inner surface. These vanes take the form of, alternately, angled J-shaped ribs and short straight interleaved ribs. All the ribs are stepped so that the flow passage for air moving along the interior side of the bag door diverges as more bag air is introduced to it so that it directs efficiently air flow to a lower disposed motor-fan section of an adjoining hard bag portion.

Abstract: Apparatus and process for extracting powder from a stream of powder laden air drawn from a manual powder spray booth in a first embodiment, with a cyclone recovery system, typically containing two cyclone separators for separating the powder from the air. The cyclone separators have a breakaway design to facilitate cleaning. The resulting cyclone cleaned air is drawn through a prefilter section by a fan section having serially stacked fans. The prefilter section further separates powder from the cyclone cleaned air. The resulting prefilter cleaned air is next filtered in a final filter section and exhausted to the air surrounding the cyclone recovery system. The invention also relates to an improved cyclone separator which incorporates a perforated thimble between the downwardly and upwardly moving vortexes in the cyclone separator to reduce the pressure drop across the cyclone separator.

Abstract: Located on an air outlet (3) of an air inlet chamber leading to a mixture former is a star-shaped insert (6), which provides for evening-out of the air flowing out of the air outlet (3) by means of linearly oriented air conducting surfaces (8) arranged in a ray pattern. This results in more uniform mixture formation even at varying engine speeds.

Abstract: This disclosure includes a process and apparatus for subsonic aerodynamic separation of components existing in condensed and/or condensable form in a gaseous stream, in which the gaseous stream undergoes successively an expansion up to high subsonic velocities and a recompression by deceleration, with inertial separation of the pre-existing particles as well as of the particles formed and/or enlarged by condensation. Within the flowing gaseous stream, a gradient of concentration of the particles is created, in the same direction as the pressure gradient within the stream. Separation of the particles occurs in an axisymmetric chamber bounded by an outer wall and an inner core and including a fixed array of deflecting blades for transforming the essentially axial motion of the stream entering the chamber into an helico-spiral motion, and a fixed array of straightening blades for transforming the helico-spiral motion of the stream before its exits from the chamber into an essentially axial motion.

Abstract: A catalytic converter has a monolith with a plurality of catalyst coated passages to which internal combustion engine exhaust gases are directed with a nonuniform velocity profile that is highest at the center. A flow distributor is mounted in the converter downstream of the monolith that restricts flow centrally through the monolith while allowing relatively free flow radially outward toward the periphery to thereby alter the velocity profile at the entrance to the monolith so as to effect substantially equal distribution of the gases between all the monolith passages without extracting heat from the gases prior to entering same and without adding substantial back pressure.

Abstract: A gas-liquid separator or slug catcher includes an inlet flow diverter for disposition in a separator vessel wherein the flow diverter includes a generally cylindrical inner wall member and a cylindrical cap having a depending wall spaced from and surrounding the inner wall member. The cap includes a transverse top wall which is spaced from the top edge of the inner wall to provide an overflow path for surges of liquid and/or gas. An inlet conduit extends to a tangential opening formed in the inner wall member for introducing fluid into an interior chamber. The inner wall member includes a transverse bottomplate which is provided with a series of openings around its periphery. Slugs of gas and two-phase liquid flow in a vortical manner in the diverter chamber whereby the gas is separated from the liquid mixture and some de-emulsification of liquid is accomplished through centrifugal forces. Deswirled liquid exits the apparatus through a bottomplate under the gas-liquid interface in the separator vessel.

Abstract: A centrifugal force separator for broken grains, husks, dust and other impurities from air has a pre-separating chamber (2) with a tangential raw gas inlet (1), in which a cylindrical deflecting screen (4) and a clean gas outlet (5) axially adjoining the latter are concentrically arranged. To increase the degree of dust separation at only a slight pressure loss and in the case of an inexpensive construction, and also to enable application in return-air systems in combination with other cereal crop cleaning and processing machines, a pre-separating chamber (X) for an air circulation is provided radially outside the deflecting screen (4), and an air discharge (Y) is provided radially inside the deflecting screen (4), which air discharge (Y) is in flow connection with the pre-separating chamber (X) via air passage channels (17) in the deflecting chamber (4).

Abstract: A dust collector including two tubes which communicate through an interconnecting conduit. A first tube operates as a cyclone which separates a great fraction of dust or solid components from the incoming air and collects the same in a bag at the bottom of the tube. The second tube includes a filter unit composed of a coarser filter as well as a surrounding fine filter, the filter unit receiving the pre-purified air from the cyclone tube through the interconnecting conduit and separating the remaining dust particles therefrom.

Abstract: An apparatus for separating entrained matter from a flowing fluid carrying the entrained matter includes a passage diverging at an angle of from 3 to about 20 degrees in the direction of flow of the fluid and at least one helical flight having the same twist direction throughout located with the passage and tapered to conform thereto. A straight cylindrical pipe is attached to the outlet end of the passage; the pipe contains a straight baffle interlocking to aboout 90 degrees with the helical flight. Opposed edges of the flight may be spaced from or in contact with the wall of the diverging passage.

Abstract: A method is provided for flow straightening and sampling gas in the stack of a gas scrubber. In normal operation the gas has a substantially nonaxial flow so as to retain within the stack droplets carried by the gas. A flow straightener having flow straightening panels is assembled in the chamber of the gas scrubber and lifted into the stack. Gas having an axial flow is then sampled. The flow straightener is then removed from the scrubber, and normal operation is resumed.

Abstract: The present invention relates to improvements in centrifugal separators of the cyclone type, in which the liquid or gaseous fluid to be purified passes through an inlet blading which is shaped so as to cause the fluid to whirl rapidly in so-called irrotational flow with uniform longitudinal lamellar components, around a high voltage electrode. An outlet device firstly comprises a convergent portion which partly converts the energy of whirling into energy of longitudinal translation, then a blading which completes the conversion, and finally a divergent portion in which the excess of dynamic energy of flow is converted into static pressure in order to recover as much as possible of the whirling energy applied to the fluid upstream of the inlet of the cyclone device. The separated particles are evacuated through a tangential outlet. The invention is more particularly applicable to the purification of fluids.

Abstract: The invention concerns a centrifugal chamber filter for separating solids from a gas stream. The filter has a cylindrical centrifugal chamber and outlet pipes which extend towards each other from the ends of the chamber for conducting away the purified gas. In order to convert the rotational flow energy into pressure energy, a distributor with radial blading is mounted between the adjacent inlet ends of the outlet pipes within the chamber. The outlet pipes are advantageously each provided with a nozzle ring at its inlet end. The distributor and/or the nozzle ring are advantageously designed to be slidable onto the ends of the outlet pipes.

Abstract: A scrubber device for removing finely divided contaminants including gases from a gas stream is disclosed. The device comprises a housing defining a pretreatment section, an implosion section, and a diffusion section. The pretreatment section includes an inlet for directing a gas stream therein and means which define an annular flow path between the pretreatment section and the implosion section for the gas stream. The implosion section is disposed in the housing and is configured such that as the gas stream flows through the annular passage, it is directed radially inward. Means for supplying a liquid to the implosion section is also included, such that as the gas stream passes through the implosion section, finely divided liquid particles are entrained in the gas stream. The diffusion section is configured to receive the gas stream from the implosion section and includes means for removing the finely divided liquid particles. The now clean gas stream is then directed out of the diffusion section.

Abstract: Apparatus and method for supplying clean air to a closed vehicle from an ambient source of air polluted with particulate matter. This is accomplished by drawing in air as a hollow cylindrical flow, converting it to the form of a flat sheet of air having components of motion radial and tangential with respect to an axis, deflecting the air by more than 90.degree. to convert it to a conical whirling flow tapering toward the axis while retaining the tangential component of motion, purging from the flow particulate matter discharged centrifugally at the site of the deflection, skimming the conical flow to remove successive outer portions thereof together with the particulate matter centrifugally displaced thereinto, again deflecting the flow by more than 90.degree.

Abstract: A laminar flow clean air enclosure has at least two spaced apart side walls and a planar filter extending between the side walls to define a work area. A transition duct couples air between the outlet of a blower and an entrance region near one end of the filter inlet to expand air leaving the blower outlet without introducing turbulence. A plenum chamber in communication with the entrance region and substantially the entire cross-sectional area of the filter inlet is formed so as to provide air at constant velocity to substantially the entire cross section of the filter inlet. As a result, the velocity of the air leaving the blower outlet is gradually reduced without turbulence to the desired exit velocity for the air leaving the filter. A perforated screen having a planar central region and an angled peripheral region covers the filter outlet.

Abstract: A moisture separator reheater combination includes specially located perforated baffles which function to reduce components of steam fluid velocity flow which are substantially parallel to the cylindrical axis of the moisture separator vessel. These baffles counteract the effects of transverse vortices which produce local pressure variations and adversely affect the efficiency of the moisture separator elements. The use of the baffles of the present invention improves the uniformity of steam flow through the moisture separator elements.

Abstract: A component for de-spinning a flow of dry vapor or gas and for separating liquid from the vapor or gas, said component including an outer vertical tube (4) for admission of a mixture of the vapor or gas and a liquid for separation which mixture is caused to spin and flow downwards. The component further comprises a coaxial inner tube (1) for collecting dry vapor or gas, provided with means (2) for de-spinning the flow of said dry vapor or gas, the lower edge of the outer tube being at a level lower than that of the upper edge of the inner tube. There are orifices formed in the periphery of the lower edge of the outer tube whose width decreases upwards, and parts for de-spinning the liquid which drops by gravity along the wall of the outer tube. Application to wet steam separators.

Abstract: A vertical separator for separating liquid or solid particles from a mixture of the particles and a vapor or a gas, said separator including, inside an outer casing a chamber for admitting the mixture, a plurality of vertical tubes whose ends are provided with fixed blades which impart a helical movement to the mixture and whose outlets are provided with a coaxial tube whose diameter is smaller and which allows dry vapor or gas to be removed in an inner tube and a mixture containing a higher proportion of liquid or solid particles to be removed in the annular space which leads into a free chamber where said mixture which contains a higher proportion of liquid or solid particles is allowed to be separated into substantially dry vapor or gas and a fluid which contains little vapor or gas.

Abstract: A centrifugal separator has an outer tube and an inner tube concentrically positioned therein, forming an annular gas inlet channel between the outer and inner tubes, and slots are defined in the inner tube to provide communication between this annular channel and the space within the inner tube. A collection chamber for collecting particulate matter and for allowing the flow of bleed gases is provided towards the bottom of the annular channel. Transverse discharge means communicate with the collection chamber for removing material therefrom. The separator includes at least one swirling vane for imparting swirling motion to gas flowing in the annular channel. Separation of particulate matter from the swirling gas due to centrifugal force occurs when the gas initially enters the annular channel and as the gas swirls within the annular channel.

Abstract: A method and apparatus are disclosed for separating components from a flog medium by means of centrifugal force. The flowing medium travels through two stages. In the first stage a spin is generated and in the second stage the actual material separation is accomplished in one or several separating devices by means of one or several whirling or eddy sources. The apparatus includes a spin generator housing and separator chambers, whereby spin conduits extend into the separator chambers toward exhaust pipes to such an extent that a spacing is provided between the spin conduit and the exhaust pipe. At least one exhaust suction is tangentially effective in the area of this spacing.

Abstract: When a thermoplastic resin pellet is transported by air current, a floss is formed in pellet in a slight amount, which is flake-like or string-like and causes various troubles in the subsequent operations.A floss separator having a small size, a light weight and a superior floss-separation efficiency is provided.This separator consists mainly of a lower cylindrical column and an upper cylindrical chamber connected thereto, and further a specific inlet for introducing a mixture of air or nitrogen gas with a floss-containing pellet into the column and for imparting to the mixture, a helical ascending gas current, and baffles fixed onto the inner wall of the column at the upper end part thereof and counter-radially protruded therefrom, and having a specified angle of attack and a specified sweptback angle to the gas current line of the gas mixture, and also having a blow-through part formed by said baffles and the upper end part of the column.

Abstract: A device for separating dust particles from an air stream, in particular for mine ventilation, comprising a centrifugal separator, a blower for conveying the air stream through the centrifugal separator, and a device connected in advance of the centrifugal separator in the air flow direction to spray or atomize water which is fed into the air stream entering the centrifugal separator, the centrifugal separator being formed from at least one impeller with substantially radial blades connected together at their outer ends by circumferentially extending walls, the distance of which from the axis increases in the air flow direction, passage apertures being provided to the housing at the positions of greatest diameter.

Abstract: This invention relates to the separation of droplets of a liquid (such as a washing liquid) from a gas, in which a stream of gas is conducted along a broad-fronted arcuate path, defined by interior and exterior walls, liquid droplets impinging upon the exterior wall and being directed through slits provided in said exterior wall. Flow of gas into, through and from the part-annular chamber defined by said walls is substantially in directions lying in planes, extending at right-angles to the longitudinal axis of the chamber with little or no movement in the longitudinal direction.

Abstract: Disclosed is a chuck or handler for carrying thin, substantially planar workpieces intermediate process stations but while maintaining a clean air environment. The chuck includes a substantially planar surface having a workpiece receiving area thereon and a plurality of channels adjacent one edge of the planar surface but superimposed thereof. A conduit is in fluid communication with the channels and includes a foraminous diffuser element in the conduit to equalize the pressure of fluid entering the channels. A source of at least Class 100 air is connected to the conduit for supplying the channels with the gaseous media so that gaseous media emanating from the channels is essentially laminar and flows across the work area to create a surface attachment effect of the air or gaseous media over the workpiece on the work area.The purpose of this abstract is to enable the public and the Patent Office to determine rapidly the subject matter of the technical disclosure of the Application.

Abstract: A laminar flow producing means is described having a blower which passes air to a distributor having a buffer zone with a ratio between its volume and cross-sectional area A being smaller than 1/2.sqroot.A and two mesh screens spaced about 0.2 to 5 cm apart and each having mesh openings measuring about 0.001 to 1mm so that the air from the blower is passed through the screen meshes seriatim to produce a clean, dust-free laminar flow of air.