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:
An improved radially designed gas manifold is disclosed for the precise mixing and admission of a plurality of gases into a processing chamber, and being characterized by rapid switching from one gas to another or from one set of gas mixture to another set of gas mixture, and yet occupying a minimum of dead space. The radial gas manifold includes a body provided with an axial mixing channel and a plurality of gas conduits formed in the body in parallel spaced relation to the mixing channel and connected thereto. A pair of annular ducts also are formed in the body adjacent its respective ends, with one of the pair connected to both the mixing channel and to each of the gas conduits, and the other of the pair connected to each of the gas conduits and being vented. A pair of valves are mounted in tandem for each of the gas conduits and means are provided to alternately open and close one of the pair of valves.
Abstract:
A dispenser for the mixing and dispensing of chemicals is provided which utilizes a draw-through distribution manifold connected to a number of concentrated chemical base solution containers. Solenoids corresponding to each chemical base are selectively operable to allow one chemical at a time to run through the manifold and a pump connected to the manifold outlet to be mixed with water from a general solenoid valve. A system for flushing the manifold is provided wherein a flush port is provided at the opposite end of the distribution manifold from its outlet. After each chemical has run for a period through the manifold, the flush system operates to accurately dilute the dispensed chemical and flush the manifold.
Abstract:
Fluid inductor and metering device for handling and mixing concentrated chemicals such as herbicides and pesticides. In one mode of operation, the concentrated chemicals are first drawn by a transfer pump from their storage container or containers into a graduated chamber and thereafter added into a primary water flow in a metered manner. In addition to being operable in a batching manner, the apparatus of the present invention can also be used to continuously inject the concentrated chemicals into the primary water flow directly from their storage containers as well as to back flush water through the storage containers to clean them. In the preferred embodiment, all of these operations can be accomplished using only the force of one transfer pump and by the manipulation of a single valve member.
Abstract:
An automatic dental amalgam dispenser-mixer comprising a first reservoir for silver powder and a second reservoir for mercury, dispensing and metering means for each material, and a mixer equipped with a recovery cup at its outlet. The dispensing and metering means includes a pair of separate conveyors--one for the silver powder and one for the mercury--each rotationally mounted in a sleeve having an inlet in communication with the associated reservoir and an outlet leading to the mixer. The rotational movement of each of the conveyors is separately controlled through stepping motors. An electronic control unit has a stored program for controlling the actuation of each of the conveyors and the mixer, and a keyboard and display for entry of the parameters of the desired mixture.
Abstract:
A method of continuous mixing and homogenization of a main substance and at least one additive substance, liquids in particular, and a device for executing the method, said device comprising a primary conduit (1) for circulating the main substance, a secondary conduit (5) for circulating the main substance and the additive substance, to which conduit a mixing unit (7) is connected, and at least one proportioner (4) for supplying the additive substance, said proportioner constituting a connection between the primary and secondary conduits, the main substance and the additive substance being supplied to the secondary conduit in dependence of a discharge from the secondary conduit.
Abstract:
Disclosed is an apparatus for blending sand and solid additives selectively and at selected rates into water for injection into a well. The apparatus may be truck mounted, and includes a frame, an input line with manifold and pump, a mixing tank, a variable venturi nozzle for delivering water to the tank, and an output line with pump, manifold, and recycle line. An auger delivers sand to the mixing tank. Dry chemicals are fed to the tank adjacent the variable venturi nozzle where the water is turbulent, at low pressure, and in high shear. Liquid chemicals may also be pumped into the tank.
Abstract:
An apparatus and method for mixing a fluid, such as chlorine or oxygen gas, into a suspension, such as comminuted cellulosic material. A circular cross-section conduit defines a flow path for a suspension, and a circular smooth-faced disc is mounted in the conduit for rotation, covering substantially the entire interior of the conduit. A relatively small opening extends through the disc, and that disc is rotated in the conduit with small portions of suspension flowing in the conduit progressively passing through the opening and being fluidized when passing through the opening. The fluid is introduced into the suspension as the suspension flows through the opening, and in this way an even distribution of fluid in the suspension, with minimum power consumption, is provided.
Abstract:
An apparatus for dissolving a gas such as air into a liquid utilizing a submerged tube provided with means for injecting the gas into the lower end thereof and for inletting liquid into the tube at various locations throughout the length thereof.
Abstract:
Disclosed is an aeration device for aerating liquids having a foam-forming tendency. The amount of foam generated by such an aeration device is controlled by having the air inlet disposed at a predetermined foam level. The liquid inlet is disposed near the surface of the liquid to be aerated, such that solid particles floating thereon are taken into the aerator. Air and liquid are combined in the aeration device producing the desired foam. The foam level is prevented from exceeding the level of the air intake due to the fact that air is required to produce the foam, and if the foam level exceeded the air intake, it would be ingested into the pump reducing the amount of foam produced thereby. Particular embodiments disclose concentric foam and liquid intakes to a submersible aeration pump.