US3690729A - Device and apparatus suitable to pulsed and controlled transfer of solids in liquid phase - Google Patents

Device and apparatus suitable to pulsed and controlled transfer of solids in liquid phase Download PDF

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Publication number
US3690729A
US3690729A US36765A US3690729DA US3690729A US 3690729 A US3690729 A US 3690729A US 36765 A US36765 A US 36765A US 3690729D A US3690729D A US 3690729DA US 3690729 A US3690729 A US 3690729A
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United States
Prior art keywords
liquid
transfer
vessel
pulsed
transfer vessel
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Expired - Lifetime
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US36765A
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English (en)
Inventor
Alessandro Facchini
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SnamProgetti SpA
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SnamProgetti SpA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure

Definitions

  • the present invention relates to a new device and to an apparatus for the pulsed and controlled transfer of solid particles, said particles being finely divided and brittle, dispersed in a liquid phase.
  • pulsed and controlled transfer the transfer effected in an intermittent way, i.e., at time intervals which may be defined at will, of amounts which may be metered at will.
  • first ones are based on the jet of a liquid which drags and therefore equipped with an outlet duct in axis with the nozzle and with an inlet duct of the phase to be dragged.
  • Said device is normally utilized for dragging a gaseous or liquid fluid.
  • the rotating transfer apparatus consists in a fixed chamber, equipped with feeding duct for the solid to be dragged and with suitable discharging and charging ducts for the dragging liquid, wherein a core rotates in which suitable cavities are made. In these cavities the solid phase to be dragged is collected and said solid phase is ejected therefrom after rotation through a suitable angle.
  • the device which is the subject of the present invention, obviates all the above-mentioned drawbacks as there are no mechanical organs in motion in direct contact with the material to be dragged and its operation is perfectly stable as the amounts transferred at every pulse are quite definite.
  • the dispersant liquid may be water, any organic or inorganic liquid, benzene, xylene, toluene, etc.
  • FIG. 1 is an elevation of apparatus operated with a single dispersant liquid
  • FIG. 2 is an elevation of modified apparatus operating with two dispersant liquids.
  • FIG. 1 shown only by way of unrestrictive example, illustrates the device of the present invention. It consists of a hopper 1 wherein the solid phase to be transferred is dispersed in a liquid, of a duct 5 discharging into a vessel 2 having a conic bottom, of two valves 3 and 6 pneumatically or electrically operated, of a three-way pressurization valve 4, of a valve 7 for restoring the liquid level in vessel 2, of a capacitive type probe 8 for regulating the level in vessel 2.
  • Reference numeral 9 indicates the discharging duct of vessel 2.
  • Operations a, b, c, d are effected in a pneumatic or electric way be a simple programmer.
  • the flow rate of the solid phase transfer is varied with continuity and once the operations time is fixed, said flow rate remains quite stable in the course of time.
  • valve 4 By varying the pressure of gas introduced into vessel 2, by means of valve 4, it is possible to transfer the material at a certain distance and/or at noticeable heights.
  • a substantial variant of the present invention is represented by the possibility of realizing in above described tank 2, the change of the liquid in which the solid phase is dispersed initially, with another one, subject to choice, which has a density higher than that of the initial liquid and lower than thatof the solid.
  • spherules of about 1.3 of density
  • hydroxides of thorium, plutonium or ammonium uranates and so on as initial liquid phase water (density 1) :and as substituting liquid, a mixture of carbon tetrachloride or of n-heptane (or n-hexane or cycloexane and so on), having density of about 1.15.
  • the device may be used to transfer not only spherules of compounds based on uranium, thorium and plutonium, but also any type of solid in liquid phase.
  • Said variant is illustrated in the device of FIG. 2, which may be used when the new liquid in which the solid phase is dispersed has a density higher than that of the initial liquid and lower than that of the solid phase to be transferred.
  • valve for restoring the level in 2) of initial liquid
  • valve for restoring the level in 2) of the new liquid in which the solid phase is dispersed
  • Apparatus for the pulsed and controlled transfer of finely divided solid particles dispersed in a liquid phase comprising a hopper adapted to hold a quantity of said disperson,
  • a closed transfer vessel having a conic lower end and adapted to receive dispersion from said hopper
  • a level regulator located in said transfer vessel adapted to actuate said third valve so that said liquid is maintained at a predetermined level in the transfer vessel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Prostheses (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
US36765A 1969-05-13 1970-05-13 Device and apparatus suitable to pulsed and controlled transfer of solids in liquid phase Expired - Lifetime US3690729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1675169 1969-05-13

Publications (1)

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US3690729A true US3690729A (en) 1972-09-12

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ID=11149300

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Application Number Title Priority Date Filing Date
US36765A Expired - Lifetime US3690729A (en) 1969-05-13 1970-05-13 Device and apparatus suitable to pulsed and controlled transfer of solids in liquid phase

Country Status (13)

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US (1) US3690729A (enrdf_load_stackoverflow)
AT (1) AT298331B (enrdf_load_stackoverflow)
BE (1) BE750255A (enrdf_load_stackoverflow)
CA (1) CA952490A (enrdf_load_stackoverflow)
CH (1) CH525144A (enrdf_load_stackoverflow)
CS (1) CS170150B2 (enrdf_load_stackoverflow)
DE (1) DE7017962U (enrdf_load_stackoverflow)
ES (1) ES380471A1 (enrdf_load_stackoverflow)
FR (1) FR2047574A5 (enrdf_load_stackoverflow)
LU (1) LU60903A1 (enrdf_load_stackoverflow)
NL (1) NL154977B (enrdf_load_stackoverflow)
PL (1) PL82839B1 (enrdf_load_stackoverflow)
SE (1) SE368692B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020044322A1 (en) 2018-08-31 2020-03-05 Peter Duncan Fraser Transport and hoisting of slurry
WO2021124262A1 (en) * 2019-12-18 2021-06-24 Peter Duncan Fraser Hoisting of underwater solids

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886210A (en) * 1956-09-28 1959-05-12 Phillips Petroleum Co Transfer of solids
US2915336A (en) * 1957-07-23 1959-12-01 Union Oil Co Solids conveyance process and apparatus
US2938751A (en) * 1957-07-17 1960-05-31 Nogami Tatsunosuke Coal carrying apparatus
US3206256A (en) * 1963-07-15 1965-09-14 Shell Oil Co Transportation of dispersed solid particles in pipe lines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886210A (en) * 1956-09-28 1959-05-12 Phillips Petroleum Co Transfer of solids
US2938751A (en) * 1957-07-17 1960-05-31 Nogami Tatsunosuke Coal carrying apparatus
US2915336A (en) * 1957-07-23 1959-12-01 Union Oil Co Solids conveyance process and apparatus
US3206256A (en) * 1963-07-15 1965-09-14 Shell Oil Co Transportation of dispersed solid particles in pipe lines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020044322A1 (en) 2018-08-31 2020-03-05 Peter Duncan Fraser Transport and hoisting of slurry
EP3844087A4 (en) * 2018-08-31 2022-05-04 Hydro Power Equipment (PTY) LTD CONVEYING AND LIFTING MUD
US11597613B2 (en) * 2018-08-31 2023-03-07 Hydro Power Equipment (Pty) Ltd. Transport and hoisting of slurry
WO2021124262A1 (en) * 2019-12-18 2021-06-24 Peter Duncan Fraser Hoisting of underwater solids

Also Published As

Publication number Publication date
DE2023495A1 (enrdf_load_stackoverflow) 1970-11-19
CH525144A (fr) 1972-07-15
FR2047574A5 (enrdf_load_stackoverflow) 1971-03-12
ES380471A1 (es) 1972-09-01
BE750255A (fr) 1970-10-16
AT298331B (de) 1972-05-10
PL82839B1 (enrdf_load_stackoverflow) 1975-10-31
NL7006888A (enrdf_load_stackoverflow) 1970-11-17
CS170150B2 (enrdf_load_stackoverflow) 1976-08-27
DE7017962U (de) 1977-01-20
NL154977B (nl) 1977-11-15
SE368692B (enrdf_load_stackoverflow) 1974-07-15
LU60903A1 (enrdf_load_stackoverflow) 1970-07-16
CA952490A (en) 1974-08-06
DE2023495B2 (de) 1975-11-27

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