摘要:
Phases of different densities are separated from each other in a vortex separator chamber. A primary flow to be cleaned drives a secondary vortex flow in the chamber. The primary flow is introduced into the chamber centrally between the chamber ends through at least one flow inlet channel or bed having an axial length shorter than an axial chamber length and a radial inlet depth such that the primary flow is adapted to the secondary vortex flow. For this purpose the primary flow is fanned-out so that it smoothly merges into the secondary vortex flow close to the inner surface of the chamber wall to avoid turbulent flows and thus losses of the primary flow energy are reduced. Cleaned gas is sucked out through immersion pipes reaching centrally into the chamber from opposite ends. Heavier particles are removed by centrifugal force and discharged through gaps in the end walls of the chamber and/or through at least one peeling slot in the axial cylindrical or spirally shaped chamber wall.
摘要:
Disclosed is a cocurrent cyclone separator extractor for both the separation of a gas/solid mixture into at least one light phase, and for the extraction of gases sorbed by the solid, comprising a first elongated external enclosure, which has a substantially circular cross-section, having at a first end, external inlet means for the introduction of the mixture, said means making it possible to give at least to the light phase a helical movement in the flow direction of the mixture in said enclosure; an elongated second enclosure, which has a substantially circular cross-section of smaller diameter than the first enclosure, whose end close to the inlet means; and a second external enclosure having a substantially vertical axis of symmetry, connected to said first enclosure, said second enclosure collecting the separated dense phase and having means for the injection of a light extraction phase, injection taking place in countercurrent manner with respect to the flow of the separated dense phase and, at least in part in said dense phase which is at least partly fluidized, the above-mentioned components arranged so that injection of light extraction phase limits flow of light phase in the direction of said second enclosure, and said second enclosure has at least one outlet for the recovery of the at least partly desorbed dense phase, said inlet also functioning as a removal means for said light extraction phase.
摘要:
Apparatus for removing volatile contaminant compounds from a liquid by sparging a cleaning gas therethrough comprises a volatile contaminant extraction assembly including a hollow porous tube surrounded by an outer jacket defining a gas plenum between the jacket and the porous tube; a contaminated liquid feed assembly including a nozzle for injecting liquid into the porous tube in a spiraling flow pattern around and along the porous tube; a gas-liquid separator assembly including a nonporous degassing tube coaxially aligned with and connected to the porous tube, a separator tube coaxially aligned with and connected to the degassing tube and flaring outwardly in diameter from the degassing tube, and a gas duct coaxially aligned with the separator tube and extending into the separator tube to collect and convey cleaning gas therefrom; a clean liquid collection assembly; and a gas discharge assembly. A method of removing volatile contaminants from a liquid comprises the general steps of introducing a stream of contaminated liquid to the hollow interior of a cylindrical porous tub in a thin film following a spiral flow pattern around and along the wall of the tube; controlling the physical characteristics of the liquid film and the flow pattern followed by the film through the tube; sparging cleaning gas through the wall of the tube and into the liquid film at a preselected flow rate; segregating contaminant laden cleaning gas from the liquid within the tube; and separating the cleaned liquid stream from the contaminant laden gas stream.
摘要:
A separation vessel (10) for separating materials of different densities comprising a chamber (14) having an external periphery (20A) at least part thereof which progressively increases from one section to another section. A mixture of materials of different densities enters the chamber (14) through an inlet (13) and travels in a spiralling vortex progressively outwardly to the widest section of the chamber (14). A primary exit (17) for material of greater density is provided closely adjacent to the widest section. A secondary exit (16) for material of lesser density is also provided.
摘要:
The invention relates to a vortex chamber separator (1) with at least one vortex chamber and at least one immersion pipe (11, 12). Each immersion pipe is arranged coaxially in the vortex chamber and is connected to a pure gas outlet. In the region of the end walls (9, 10) of the vortex chamber there is an angular channel (13) surrounding at least one immersion pipe (11, 12), forming an annular vortex casing (14). Via a peripheral slot (15), the latter is in communication with the vortex annular space (16) surrounding at least one immersion pipe (11, 12). There is a spiral immersion pipe casing in the region of the immersion pipe opening (17) which is connected to the annular vortex space (16) and at least one fume outlet.
摘要:
Deinking of paper having print during the production of recycled paper is accomplished by a froth flotation process using a hydrocyclone. A finely comminuted liquid solids used paper suspension having a consistency of about 1 to 4% is introduced into a generally vertical axis vortex provided in a hydrocyclone. Air is sparged into the suspension in the vortex, by passing through a porous inner wall of the hydrocyclone, to cause ink particles to attach to the air bubbles and to rise in a foam while cellulosic pulp moves downwardly in the vortex. The foam--containing the ink particles--and the pulp are removed from the vortex in separate streams. The pulp is deaerated and the air component of the foam is removed in the cyclone. About 5-15% of the total flow of the suspension is removed with the foam in each stage, and about 95-85% with the pulp. In practicing the froth flotation a plurality of vertical axis hydrocyclones are connected together in-series, with a plurality of the series connected in parallel with a paper comminuting device (pulper) and a common outflow conduit.
摘要:
An apparatus and method for separating hydrophilic particles from a fluid suspension containing both hydrophilic and hydrophobic particles. A generally cylindrical separation vessel includes tangential inlet and outlet ports. The fluid suspension is introduced into the separation vessel through the inlet port to circulate around the inner surface of the separation vessel in a forced vortex swirl flow. Air sparged through a porous wall portion of the side walls of the separation vessel forms air bubbles to which attach hydrophobic particles in particle/bubble aggregates. These migrate as a froth towards the axial center of the separation vessel where they are discharged at the upper end thereof. A froth washing tube having an open end proximate to the upper end of the separation vessel discharges pressurized water thereinto. A deflector located opposite the open end of the froth washing tube causes the momentum of the pressurized water discharged to be directed radially outward from the open end of the froth washing tube in a spray that passes through the froth toward the side walls of the separation vessel, removing hydrophilic particles entrained in the froth. Optionally, the froth is discharged from the separation vessel through a vortex finder, and a froth pedestal is located within the lower end of the separation vessel.
摘要:
The invention concerns a process for separating and/or precipitating of solid and/or liquid particles (disperse phase) from gaseous and/or liquid media (continuous phase) as well as for separating mixed gases (gas-gas-separation) and/or mixed fluids (fluid-fluid-separation) as well as for screening and/or classifying by means of a vortex chamber separator with suction tube 35. For decrease of flow resistance at generation of moment of momentum the contact zone between main flow and eddy is adjusted to cylinder casing that the tangential initial impulse in laminary bottom flow is increased by means of decrease of laminary bottom flow impulse, secondarily circulating in vortex chamber. For reduction of loss of impulse by means of dissipative drop of pressure in flow of main channel, laminary bottom flow is dynamically balanced with constant or mainly constant average main flow rate. Clean gas flow is passed through suction tubes 35 with increasing cross sections in outlet direction, that flow is affected by only little meridian deviations in zones of extremely high flow speed. The clean gas flow is passed along outside of suction tubes with increasing speed towards inlet sections.
摘要:
A method and vortex separator for sequential separation of a medium into different components by means of centrifugal force in a vortex array (2, 2) in a manner that part of a vortex flow (71) proceeds from the outer portions of a vortex (2) into the outer portions of a following vortex (2) and in individual vortexes (2) particles having a major mass concentrate in the outer portions of a vortex and those having a minor mass concentrate in the central portions of a vortex. For increased separation capacity the successive vortexes (2) of a vortex array (2, 2) are backed up substantially on each other while rotating in opposite directions and the flow (71) between individual vortexes is allowed to pass without any substantial movements in the direction of a vortex axis (49).
摘要:
An electrode probe (1), in particular for electrical stimulation of the heart from the interior of the esophagus, is constructed on the basis of the new finding that the distance from the transition between the stomach and the esophagus to the transition between the left atrium and the left ventricle is substantially the same in adults. The electrode probe (1) has a maximum of two stimulation zones (A, B) (one for atrium and ventricle, respectively) which, when fitted on expansible parts of the probe, allows heart stimulation to be performed with simple equipment without expert assistance, when the distance between a means (4X) for fixing the axial position of the probe in the esophagus and the stimulation zones (A, B) are determined in accordance with the above finding, so that in all conditions optimum stimulation of the heart and reduction in the required stimulation voltage are obtained.