Abstract: An apparatus for mixing powdered or coarse-grained bulk materials includes a first mixing device (4) with a second mixing device (11) lying below it, each of them having cylindrical mixing containers (2, 12) with downward tapering mass flow hoppers (3, 13). The bulk material from the upper mixing device (4) is conveyed via gravity pipes (9, 10, 10', 28, 29) into the second mixing device (11), which concentrically surrounds a third mixing device (6). Outlet apertures (27) are provided in the third mixing device (6) to ensure a constant discharge mass flow through the total lower outlet area (25).

Abstract: To supply a programmed gradient to a high pressure pump for introduction into a column, a mixer, degasser and accumulator communicates with the high pressure pump to supply fluid thereto, having a volumn no more than 150 times the chamber volume of the high pressure pump. The mixer, degasser and accumulator includes temperature sensors which sense when the mixer, degasser and accumulator has been emptied to a level where it cannot respond to a demand for fluid from said high pressure pump and provides a signal to a low pressure pump which responds by cycling to again fill the mixer, degasser and accumulator. Upon receiving a demand signal, the low pressure pump fills by drawing fluid from a plurality of fluid sources to compose the gradient being used at that time, with the pump slowing during valve opening and closing so as to avoid cavitation.

Abstract: An improved fluid mixing device comprising a mixing chamber having end walls and a cylindrical side wall. A first fluid conduit joins the mixing chamber at a first port formed in the first end. A second fluid conduit joins the mixing chamber at a second port formed in the side wall. A second fluid conduit is angled with respect to the mixing chamber to direct fluid flow from the conduit through the second port generally along the wall of the mixing chamber to create a rapid vortexing action. A third conduit joins the mixing chamber at a third port in the second end. A fourth conduit intersects the third conduit, the center lines of the third and fourth conduits offset at the area of intersection.

Abstract: An integrated process blending apparatus which blends particulate material and also automatically controls the flow of material into the blender and out to the associated processing equipment. Load cells attached to the blender vessel are used to control the entry of material into the blender, while the pressure drop in the blender output pipe is used to control an output deflector to either remove or recycle material within the blender. The blender is also made more effective by dividing it into vertical compartments with separators which have angled portions preferably in their lower regions to cause different downward flow velocities in each compartment, and by creating a multistage blender by stacking sets of offset compartments one on top of another.

Abstract: A blending apparatus, inexpensive in construction and requiring a minimum of recirculation, is today essential for economical and thorough blending of particulate material, for example, plastic pellets of virgin material and of pellets that have been reconstituted from recycled material. Construction of the blender is low in cost because the customary receiver, and its piping, conventionally installed below the blender are eliminated. The novel convex baffle serves: (1) as a termination surface for the otherwise conventional perforated blending conduits; and (2) retains a toroidal annular volume of a specific particulate material as determined by an analogous test apparatus in position between the upper outer surface of the baffle and the inside wall of the blender.

Abstract: A method and apparatus is provided for blending solid particulate material in a vessel which includes a center lift column and a first downcomer channel which includes n successive vertical sections and n flow ports respective located at a top portion of the n sections. The n sections include withdrawal structure for providing a volumetric outlet flow rate which includes a flow rate contribution from each of the n sections which is 1/n of the outlet flow rate. The apparatus can also include a second channel which includes a plurality of vertically spaced inlets for receiving particulate material from different vertical locations within a blending vessel of the apparatus and an outlet for returning particulate material to the lower part of the vessel, with each of the inlets of the second channel including a baffle extending into an internal flow area of the channel.

Abstract: A method and apparatus for automatically and simultaneously weighing and integrating various nutritional supplements for subsequent blending with livestock feed grain. The apparatus includes a housing formed with a plurality of upper inlet openings and a lower outlet opening. A plurality of augers convey nutritional supplements from a storage area into the inlet openings. A plurality of weigh hoppers are pivotally mounted below the inlet openings on load cells. Weight indicators are electrically connected to the load cells and augers, and are interfaced with a computer, for controlling and coordinating the deposit of supplements from the augers, load cell weighing, and the pivotal dumping movement of the weigh hoppers. A funnel containing a plurality of deflectors is mounted within the housing below the weigh hoppers, and communicates at its lower end with a motor-driven flighted drum rotatably mounted within the housing, which in turn communicates with the outlet opening.

Abstract: An integrated process blending apparatus which blends particulate material and is also adaptable to store blender inventory to thereby integrate process feed with the blending function. The apparatus comprises a fluidized bed blending means to preblend that raw feed which is not send directly to the gravity blender. Overflow from the fluidized bed means is directed into a storage chamber means from which it can be withdrawn upon demand and sent into the blender. The blender is also made more effective by dividing it into vertical compartments with separators which have angled portions preferably in their lower regions to cause different downward flow velocities in each compartment, and by creating a multistage blender by stacking sets of offset compartments one on top of another.

Abstract: A method and apparatus for blending a material feed and/or separating debris from a material feed is disclosed in which a feed separator is used with a blender and/or debris separator. The feed separator separates a feed from the conveying air flow which conveys the feed and the conveying air flow, devoid of feed, is then used to blend the conveyed feed and/or separate debris therefrom.

Abstract: A plate blender for use in the blending of particulate and granular solid materials is disclosed. The plate blender includes a tank having a plurality of vertical, radially extending baffles and with a series of vertically spaced windows in some of the baffles. In one embodiment, one of the baffles is of solid construction and the remaining baffles have a series of vertically spaced windows in each baffle, with the series of windows for each successive baffle in the direction of filling of the vessel being located at a progressively lower level than for the previous baffle so that the filling sequence results in the material to be blended being allowed to flow successively from one blending zone to the next around the circumference of the vessel and with the location and number of windows providing for consecutive layers of material throughout the zones. The plate blender may be employed in the blending of flowable particulate solid materials such as plastic pellets and powders.

Abstract: An apparatus for fine-mixing, dispersing, and emulsifying media capable to flow, such as gases or fluids, comprising an injection nozzle for injecting the pre-mixed media and a hollow body with a bore, disposed mirror-inverted and at a small distance thereto, the outlet end of said nozzle and inlet end of said hollow body, seen in the direction of flow, being a part of an annular gap working as pre-emulsifying chamber. For intensifying the mixing and effecting a pre-emulsification, the hollow body with the bore is sharp-edged. The apparatus further comprises a following homogenizing chamber having at its internal walls means for enhancing the turbulence of the mixture.If no pre-mixed media are used, it is also possible to provide for one or more channels, disposed perpendicularly to the injection nozzle and reaching into said annular gap for injecting a second medium or further media.

Abstract: Described is a mixing bin for mixing bulk goods, particularly by pure gravity flow, comprising a mixing pipe disposed at a substantially central location in an outer container and provided with a plurality of intake ports disposed at different levels for withdrawing bulk goods at different levels from a bulk goods column enclosed by the outer container. All intake ports open into a common interior space of the mixing pipe. A respective deflector baffle projecting into the interior space so as to obturate a part of the cross-sectional area thereof is disposed above each intake port to be passed by the bulk goods flow in the interior space.

Abstract: A high pressure homogenizing apparatus for breaking-up micro-organisms or other micro-biological structures. The apparatus comprises a nozzle assembly through which a slurry or suspension to be treated is forced under high pressure. Between an inlet and an outlet, a cutting edge and, dowstream thereof, a circumferential recess are provided in a narrow gap of adjustable width.

Abstract: A bubble generator for producing cellular concrete which comprises an interchangeable housing containing a plurality of particles. The housing is releasably connected to a first and second retaining means at its respective first and second ends for retaining the particles in the housing. The particles contained in the housing can be the same or different in size, substantially spherical or nodular in shape, and about 100 to 6000 in number. The device generates uniform and strong bubbles of frother solution for cellular concrete.

Abstract: A device for liquid pumping, including a main chamber and a pump chamber for receiving a subportion of the liquid to be pumped from the main chamber and which is provided with means for cyclic variation of the pressure in the pump chamber between a pressure greater than a pressure less than the pressure in the main chamber. The pump chamber is connected to the main chamber by at least one input opening and at least one output opening. The input opening has a substantially lower flow resistance in the direction into the pump chamber than in the opposite direction and the output opening has a substantially lower flow resistance in the direction out of the pump chamber than in the opposite direction.

Abstract: An enriching device consisting of a container which comprises a removable tightly fitting metal body the sparingly volatile material being present in a coiled groove. During operation of this device transverse flows and shortcuts, respectively, of the carrier gas flow occur. To assure that the carrier gas flows through the material without having an escape possibility, the groove (5) is made either in an outer wall of the metal body (8) or in the bottom (4) of the container (1), and the parts (6) present between the individual turns of the groove have a cutting edge, i.e. a cross-sectional profile in the form of a wedge, the tip of which is in contact either with the smooth inner wall of the container (1) or with the smooth lower side of the metal body (8). The device is suitable for adjusting a defined mass flow of sparingly volatile materials which are used as starting compounds for chemical deposition from the gaseous phase.

Abstract: An apparatus for blending particulate materials comprising means defining an upper chamber for holding a supply of material to be blended, the material holding means having at least one wall, the wall of the material holding means having at least two outlet ports spaced vertically and about a perimeter of the material holding means for reeiving therethrough particulate material from the upper chamber by gravity flow, means defining a lower chamber for blending particulate material, the material blending means having at least one wall, the wall of the material blending means having at least two inlet ports, means intercommunicating each of the outlet ports with one of the inlet ports for guiding material from the upper chamber to the lower chamber, flow diverting means disposed in the lower chamber, the flow diverting means having means positioned to intercept the flow of material through each of the inlet ports for dividing the flow of material into separate streams, each of the material flow intercepting mea

Abstract: A bulk material mixer includes a container accommodating a central tube provided with a plurality of lateral inlet openings at various levels. The inlet openings have a cross section which increases from bottom to top so that the inlet openings at the lowest level have a smallest cross section while the inlet openings at the uppermost level have a greatest cross section.

Abstract: An apparatus is described for dispensing a composition of coarse and fine particles, comprising a bin section and a cone section. The bin section holds a supply of the composition, and the cone section includes inner and outer frusto-cones for conducting downward, respectively, first and second portions of the composition discharged from the bin section. These portions re-mix in the area directly below an outlet of the inner cone as the material is discharged from the dispensing device.

Abstract: A blender for solid particulate material such as plastic pellets which includes an apparatus for separating a fine fraction of material from the plastic pellets. This is accomplished by a separator shell which surrounds a vertical lift pipe in the blender. Gas under pressure is utilized to circulate material through the lift pipe from the bottom of the vessel to the top of the vessel to blend the material. As material is discharged from the vertical lift pipe, the air supplied through the lift pipe for lifting material flows through material dispersed within the separation zone to entrain the fine material and convey it through a vent to a high efficiency dust collector. A by-pass conduit and by-pass control valve are provided to control the velocity of gas through the separation zone to control the size particle of the fine fraction which is separated.

Abstract: A high capacity withdrawal system for a pellet blender which includes a venturi shaped gas supply nozzle mounted in the gas inlet, material outlet of the vessel. The venturi nozzle allows high velocity gas to be supplied to the bottom of the vessel for circulating material through a vertical lift column in the vessel. When it is desired to discharge material from the vessel, the flow control nozzle is moved away from the discharge opening to increase its effective size to allow rapid withdrawal from material from the vessel.

Abstract: An air distributor head mounted in a sloping wall for a hopper for pulverulent material to agitate and aerate the material as it travels down the wall surface toward the discharge opening in the bottom of the hopper; the head assembly including a generally cylindrical head with air flow passages and having an expandable generally cylindrical resilient skirt surrounding the body thus permitting air supplied through the passages under the skirt to be discharged into the pulverulent material to incorporate a flow of agitating and fluidizing air into the material.

Abstract: A device for blending dust, powder or coarse particle bulk materials, having a first upper blending device with a cylindrical blending container and a connecting discharge funnel which tapers conically towards a second lower blending device. The second lower blending device having a cylindrical container and a connecting discharge hopper which tapers conically towards the bottom to form an upper and lower mass flow silo. There is a blending pipe installed in the upper blending device which extends approximately to the lower end of the upper discharge funnel. The blending pipe contains inlet openings throughout its whole length for bulk material wherein the concentrically installed blending pipe is vertically subdivided into gravity pipes arranged side by side. Each pipe contains several inlet openings arranged above one another. The blending pipe is constructed cylindrically in the lower end region with the bulk material being transported back via a conveying pipe.

Abstract: A high pressure foam slurry generator, including a source of slurry, a source of gas, and a means for combining the slurry and the gas, which is usually nitrogen. A housing receiving the slurry and the gas has a connector with multiple channels. One channel for the nitrogen gas acts as an inlet and has a bushing with a series of multiple holes through which the nitrogen gas is broken into a plurality of high velocity streams. The slurry with a foamer agent added combines at right angles with the nitrogen gas and is formed before being pumped through a tubing string into a gas or oil well. Also included herein is a process for making foamed slurry by pumping a slurry capable of being foamed to a housing, pumping nitrogen to the same housing, separating the nitrogen into a plurality of high velocity streams, and combining the streams and the slurry in a foaming action. Either the slurry or the nitrogen may have two separate streams entering the housing as right angles to each other.

Abstract: A series of hollow cylinders are mounted inside the cylindrical portion of a solids blender to propagate the velocity profile from the bottom to the top of the cylinder and thus to extend the blending capacity of the bin to its entire length and volume. The invention can be used with funnel flow hoppers, mass flow hopper, and cone-in-cone mass flow hoppers. Ranges of the design parameters are described.

Abstract: A device for adding oil to a flowing stream of gasoline which includes an oil funnel with a small suction passageway in the apex of the funnel communicating with the interior of a gasoline feed pipe rigidly attached to the outside of the funnel, the pipe having a socket at its upper end to receive the nozzle of a gasoline pump hose and having a lower outlet end adapted to be placed in the fill pipe of a gasoline tank.

Abstract: A circulation mixer for bulk material includes a container with funnel-shaped bottom to which a cellular wheel sluice is attached. The sluice is provided with inlet ports for bulk material as well as outlet ports communicating with pertaining riser pipes and includes a cellular rotor which conveys bulk material introduced through the inlet ports to the outlet ports for returning bulk material via the riser pipes to the upper part of the container. For pneumatically raising the bulk material through the riser pipes, air is injected through further ports which are arranged opposite the outlet ports and serve also as discharge ports for bulk material.

Abstract: In the mixing of two or more particulate solid feeds in proportional ratios in which the unmixed solids are fed from separate bin receivers into a common mixture bin receiver having a generally vertical section, the present invention comprises an improved feeder in which a feeder means extends below the level of the solids in the common mixture bin. The improved feeder means of this invention comprises at least two nested conduits of differing horizontal cross-sectional areas. One or more of these nested conduits may be raised (or lowered) by an adjusting means to engage a conduit having a greater (or lesser) horizontal cross-sectional area enabling the proportions of particulate solids being fed to be changed as desired.

Abstract: A blender wherein the fluids to be blended are compelled to flow through a bed of loosely-associated buoyant bodies.

Abstract: A device for heating and emulsifying milk, especially to prepare a white coffee drink known as "cappuccino" with the assistance of a steam jet, which has a vacuum chamber surrounding a nozzle and formed with an emulsion discharge port, a passageway for admitting sucked-in air, and at least one passageway for the milk which enters the chamber on account of the negative pressure prevailing therein, thereby milk, air, and steam are mixed together in said chamber and then made to flow out through said discharge port.

Abstract: Scrubbing apparatus for effecting contact between polluted air and a scrubbing liquid may define a serpentine path mounted on a rooftop, a tank in which contact between the polluted gas and the scrubbing liquid is effected by projecting the scrubbing liquid onto a rotating propeller to effect atomization of the scrubbing liquid or contact between the scrubbing liquid and the polluted air can be effected by dripping scrubbing liquid onto filters through which the polluted air passes. Purification of the scrubbing air is enhanced by producing turbulence in the air carrying the scrubbing liquid by passing the air carrying the scrubbing liquid between closely adjacent, flexible, vibrating sheets disposed parallel to the gas flow. The vibrating characteristics of the flexible sheets can be altered by stretching such sheets and/or by placing such sheets alongside a hard surface struck by the flexible sheets.

Abstract: An upstanding container including an upwardly opening fill neck is provided. An upstanding tubular compartment assembly is downwardly removably positionable within the container through the fill neck and includes upper and lower openings communicating the interior of the assembly with the interior of the container exteriorly of the assembly. The assembly includes structure by which the upper and lower openings may be selectively opened and closed and upstanding internal liquid volume displacement structure is removably and downwardly insertable into the assembly for selectively varying the internal volume thereof in order to enale different ratio mixes of two liquids to be formed within the container.

Abstract: An emulsifier unit particularly for emulsifying steam and milk to prepare "cappuccino's" comprises a steam delivery conduit in communication with a steam generator and opening into a suction chamber into which a milk delivery conduit is led, said suction chamber being in communication with an emulsifying chamber provided with an outward dispensing opening.

Abstract: Apparatus for food preparation comprises a bowl, a rotatable tool within this bowl, and an arm which extends over the bowl and which contains a drive device for rotating the tool. The drive device includes a pinion to engage the drive shaft of the tool, and this pinion is fixed to, or preferably integral with, the drive shaft to define a drive assembly for the tool. This drive assembly is detachably mounted within a recess provided in the arm. An opening is formed in the arm through which the recess communicates with the exterior, and this opening is arranged to allow passage of said drive assembly therethrough.

Abstract: A fluid mixing apparatus which is used in a vertical flow fluid-solid contacting column having a fluid inlet and a fluid outlet at opposite ends, two or more distinct beds of particulate material, and single or dual phase fluid flow. The mixing apparatus comprises a vertical flow barrier, positioned intermediate two adjacent beds of particulate material, having a substantially imperforate outer area and at least one central opening for passing fluid between beds and a fluid impingement compartment located at the center of the barrier.

Abstract: There is described a method of preparing working strength solution in a processing apparatus which comprises adding a requisite volume of concentrated solution to a storage vessel until the liquid level on the storage vessel reaches the top of a standpipe in the storage vessel and continuing to add diluent to the storage vessel so that excess liquid in the storage vessel flows down the standpipe to a connected working vessel, stopping the flow of diluent when the volume of liquid in the working vessel reaches a predetermined volume, then commencing to pump liquid drawn in part at least from the bottom of the working vessel into the storage vessel, the excess liquid in the storage vessel flowing into the working vessel, and continuing to pump liquid from the working vessel to the storage vessel until the specific gravities of the liquid in the storage vessel and in the working vessel are the same.

Abstract: A mixing apparatus includes an elongated cylindrical mixing chamber having a hollow body and opposed end walls. The mixer also includes a first entry port extending through a first of the end walls and into the mixing chamber, with a first nozzle plate mounted within the mixing chamber and adjacent the first entry port. The mixer also includes a second entry port extending through the remaining end wall and into the mixing chamber, with a second nozzle plate mounted within the mixing chamber and adjacent to the second entry port. The nozzle plates are spaced apart from one another within the mixing chamber. The mixer also has a discharge port extending through the hollow body and into the mixing chamber. The mixer may also include an intake port extending through the hollow body and into the mixing chamber. The intake and the discharge ports are preferably positioned longitudinally on the hollow body between the nozzle plates and opposite one another.

Abstract: A single-pass blending apparatus for blending particulate solids including a blending bin having a bin wall, an upper bin end, a lower bin end, a first bin opening passing through the bin wall, and a second bin opening passing through the bin wall and spaced vertically and horizontally from the first bin opening. The bin wall defines a bin chamber. A plurality of flow openings pass through the lower bin end. A blending chamber is positioned beneath the bin chamber and communicates with the bin chamber through the flow openings. A first external blending tube is positioned outside of the blending bin and has an upper tube end communicating with the first bin opening and a lower tube end external of the bin chamber and communicating with the blending chamber. A second external blending tube is positioned outside of the blending bin and has an upper tube end communicating with the second bin opening and a lower tube end external of the bin chamber and communicating with the blending chamber.

Abstract: A gravity blending apparatus and methods of gravity blending involving an improved venting arrangement, by means of which an increase in the "thru-put" flow rate of a gravity blender apparatus is provided by venting the underside of an inverted cone within a collecting chamber to one or more low pressure zones. Advantageously, such venting may proceed progressively from the underside of an inverted cone within the collecting chamber to a low pressure zone within the upper portion of the collecting chamber, with venting continuing by way of auxiliary or further venting conduit means to the underside of a material distributing, inverted cone in the lower portion of the base of the main bin of the gravity blender.

Abstract: A foamable liquid distributing apparatus comprising a composite block formed of two parts removably secured together and having an inlet passageway and a plurality of spaced outlet passageways. A plurality of connecting passageways respectively connect the outlet passageways to inlet passageway, with each of the connecting passageways being provided with a plurality of turbulence-producing bends to inhibit build-up of foam.

Abstract: A blending bin for particulate having a plurality of vertically extending passageways is provided. Each passageway includes multiple vertically spaced ports. Blending vanes are provided within each passageway to control the proportion of material withdrawn from the bin through the ports. The streams of material are in turn proportionally combined into a single outlet stream. The ports are spaced such that lots of material loaded into the bin will be blended together in the outlet stream and such that thin layers of off-grade or non-uniform material will not reach disproportionate levels in the outlet stream.

Abstract: Particulate materials are blended in a vessel provided with a plurality of vertically extending conduits therein. The vessel comprises a downwardly converging frustoconically shaped bottom wall which defines the lower region of the vessel. The conduits are provided with a plurality of longitudinally extending compartments having openings within the upper region of the vessel. The lower ends of the conduits and the compartments therein extend through the bottom wall, each communicating via a corresponding connecting conduit with a solids outlet at the open bottom of the bottom wall. At least one drain conduit communicates between a corresponding opening in the bottom wall and a corresponding compartment at a location below the bottom wall. A baffle is disposed within the vessel separating the upper and lower regions and comprises a downwardly converging inverted generally conical portion spaced above the bottom wall and defining therebetween a downwardly converging annular passage.

Abstract: A passive fluid mixing system having one or more mixers each comprising a mixing chamber (12), a fluid entrance passageway (18) and a fluid exit passageway (20), the passageways being located at opposite ends of the chamber and displaced substantially 180.degree. from each other and lying at least in part in common plane including the axis (13) of the chamber.

Abstract: Particulate materials are blended in a vessel provided with a plurality of vertically extending conduits therein. The vessel comprises a downwardly converging frustoconically shaped bottom wall which defines the lower region of the vessel. The conduits are provided with a plurality of longitudinally extending compartments having openings within the upper region of the vessel. The lower ends of the conduits and the compartments therein extend through the bottom wall, each communicating via a corresponding connecting conduit with a solids outlet at the open bottom of the bottom wall. At least one drain conduit communicates between a corresponding opening in the bottom wall and a corresponding compartment at a location below the bottom wall. A baffle is disposed within the vessel separating the upper and lower regions and comprises a downwardly converging inverted generally conical portion spaced above the bottom wall and defining therebetween a downwardly converging annular passage.

Abstract: Liquid mixtures are prepared in first and second containers (3 and 4). The first container (3) has an outlet (6) spaced from the bottom of the container and communicating with an inlet (7) to the second container (4). A measured amount of first liquid is poured into the first container and fills the latter to the height (h.sub.1) of the outlet, the remainder flowing under gravity into the second container, whereby the first liquid is distributed between the first and second containers in proportions dependant upon the height (h.sub.1) of the outlet (6) and the basal areas of the two containers.A hollow tubular extension (15) is then fitted with one of its ends to said outlet and at the other end has mixture-preventing means (18) for receiving a flow of second liquid and defining an overflow outlet (16) spaced above the outlet (6).

Abstract: An adjustable orifice assembly adapted for use in a homogenization apparatus for intermixing a multicomponent stream includes a pair of opposed orifice defining elements removably secured to a control assembly to provide a variable orifice in effecting the homogenization of the stream.

Abstract: A gradient mixer which effects the continuous mixing of any two miscible solvents without excessive decay or dispersion of the resultant isocratic effluent or of a linear or exponential gradient. The two solvents are fed under low or high pressure by means of two high performance liquid chromatographic pumps. The mixer comprises a series of ultra-low dead volume stainless steel tubes and low dead volume chambers. The two solvent streams impinge head-on at high fluxes. This initial nonhomogeneous mixture is then passed through a chamber packed with spirally-wound wires which cause turbulent mixing thereby homogenizing the mixture with minimum "band-broadening".

Abstract: A mixing apparatus for multi-component plastics, in particular polyurethane, possesses a mixing chamber (2) with inlet apertures (3) and (4) for the individual plastic components and an outlet aperture (8) for the mixture. In the mixing chamber, a control element (5), which has the same cross-section as the chamber and possesses overflow channels (6) and (7), can be moved to and fro for controlling the component streams. In order to avoid pressure peaks or pressure surges in the transport of the components when the control element passes from the closed position to the mixing position and vice versa, and to provide improved accuracy of metering, the inlet apertures in the inner wall of the mixing chamber, and the corresponding areas of the shell of the control element between its end face (13) and the overflow channels, are matched with one another with regard to their size.

Abstract: An apparatus combines streams from different pipelines having different flow rates, concentrations, and pressure. The junction comprises a directed vortex formed by a conically-shaped enclosure having a closed base with one pipeline inlet through the base at the axis of the cone. Another higher pressure inlet is positioned on the periphery of the cone near the base and at a tangent to the covered cross-section at the point of entry. The high pressure inlet is also at an angle to the cross-section and directed toward the outlet at the apex of the cone. A fluid dewatering apparatus may be attached to the outlet to maintain a predetermined concentration in the case where one or more inlets contain a slurry.

Abstract: A meter measures the quality of steam flowing in a conduit. The steam comprises a liquid and a vapor. The meter includes a mixer in the conduit for mixing the steam in the conduit to produce a mixture which has a density representative of the liquid and the vapor. A density sensor, or desitometer, senses the density of the mixture. The densitomer produces an improved output due to the mixing. A pressure sensor senses pressure in the steam line. A calculating means, such as a microprocessor system, calculates the steam quality as a function of the sensed density and pressure.