US3317086A - Storage apparatus for granular or pulverulent material - Google Patents

Storage apparatus for granular or pulverulent material Download PDF

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Publication number
US3317086A
US3317086A US522298A US52229866A US3317086A US 3317086 A US3317086 A US 3317086A US 522298 A US522298 A US 522298A US 52229866 A US52229866 A US 52229866A US 3317086 A US3317086 A US 3317086A
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US
United States
Prior art keywords
container
cell
cells
gas
storage apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US522298A
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English (en)
Inventor
Welinder Gustav Arthur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A-B Interconsul
INTERCONSUL AB
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INTERCONSUL AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INTERCONSUL AB filed Critical INTERCONSUL AB
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Publication of US3317086A publication Critical patent/US3317086A/en
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Classifications

    • 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
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06—Gas pressure systems operating without fluidisation of the materials
    • B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
    • B65G53/12—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow acting directly on the materials in a reservoir
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices

Definitions

  • This invention relates to an improved storage appaa ratus for granular or pulverulent material, which is hereinafter referred to as particulate material.
  • T o fulfill the above desideratum the present invention provides an economical and advantageous solution in which a differential stressing of the celluar container is avoided at the filling and emptying of one cell at a time by means of gas under pressure.
  • the invention thus relates to a storage apparatus for particulate material, comprising a closed container, partition means in said container subdividing the interior of said container into a plurality of cells, closable inlet means for each cell at the top of said container for introducing particulate material in a stream of gas under pressure selectively into each cell, closable outlet means for each cell at the bottom of said container for discharging the material by means of gas under pressure selectively from each cell, gas passageway means on said partition means adjacent their upper ends, and filter means associated with said gas passageway means and being permeable to gas but impermeable to the particulate material.
  • FIG. 1 is a side elevation, partly in vertical section, of the storage apparatus
  • FIG. 2 is a horizontal section of the apparatus in FIG. 1.
  • the storage apparatus illustrated in the drawings is especially intended for the storage of four different grades of flour in a bakery.
  • the storage apparatus comprises a closed container 1 in the form of a vertical upright cylinder having semi-spherical end walls.
  • the inner space of the containers is divided by four radially disposed walls 2 into four adjacent cells which extend from one end to the other of the container.
  • Each cell at the top has an inlet 3 which is connected to a tube 4 extending downwardly along the container 1 and having at the bottom a shut-off valve 5 and hose coupling means 6 for the connection of a fill hose (not shown).
  • Each cell also at the bottom has an outlet 7 to which is connected a tube 8 having a shut-off valve 9 to which is coupled a transport tube (not shown) for carrying away the fiour by means of compressed air blown into the last mentioned tube in the customary manner.
  • a so-called air cushion device which comprises a compressed air pipe 12 having a shut-off valve 10 and a hose coupling means 11, said pipe 12 opening into a chamber close to the outlet 7, which chamber is separated from the remaining container '1 by a perforated metal sheet 13.
  • a filter cloth (not shown) which allows air but not flour to pass therethrough, is expanded over the perforated metal sheet 13.
  • the four cells for the four different grades of flour which must not be mixed in the container are interconnected at the top by four gas passageways which pass through the otherwise tight walls 2 and in the embodiment shown consist of perforated pipes 14 which penetrate into the cells on either side of the respective wall 2.
  • These perforated pipes 14 are fixed by welding in holes in the respective wall 2 and are surrounded in each cell by a filter cloth sleeve 15 which surrounds the respective pipe and which for greater clarity is but partially indicated by schematic cross hatching in the drawings.
  • the filter cloth sleeves constitute gas permeable filter means which, however, are impermeable to the flour so that air but not flour can pass from one cell to every other cell through the gas passageways 14.
  • the unloading hose of the vehicle is connected to the fill pipe 4 by the intermediary of the hose coupling means 6, and the valve 5 of the pipe 4 is opened. Also the valves 5 of the fill pipe 4 associated with the three other cells are opened so that these three cells will be in communication with the atmosphere through their tubes 4.
  • the flour is transported in a known manner from the vehicle to the connected cell by means of a stream of compressed air and the transportation air entering the cell through the inlet 3 thereof escapes to the atmosphere by flowing through the filter cloths ⁇ 15 and the perforated pipes 14 from the cell being filled to the three other cells and furthermore through the inlets 3 and fill pipes 4 of these three cells, which pipes as pointed out above are in free communication with the surroundings. Consequently, there is formed practically no pressure above atmospheric in the container during the filling thereof, and in any case no appreciable pressure difference arises between the four cells in the container.-
  • the filter cloth sleeves '15 prevent flour from passing over from one cell to another and there is thus no risk whatever that the different flour grades will mix.
  • a storage apparatus for particulate material comprising a closed container, partition means in said container subdividing the interior of said container into a plurality of cells, closable inlet means for each cell at the top of said container for introducing particulate material in a stream of gas under pressure selectively into each cell, closable outlet means for each cell at the bottom of said container for discharging the material by means of gas under pressure selectively from each cell, gas passageway means on said partition means interconnecting said cells adjacent their upper ends, and filter means associated with said gas passageway means and being permeable to gas but impermeable to the particulate material.
  • said gas passageways means comprises perforated pipe means, mounted on said partition means, said pipe means penetrating said partition means and projecting into the cells on opposite sides of said partition means for forming said gas passageway means, and filter cloth sleeve means surrounding said pipe means for forming said filter means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US522298A 1965-02-02 1966-01-21 Storage apparatus for granular or pulverulent material Expired - Lifetime US3317086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE132265 1965-02-02

Publications (1)

Publication Number Publication Date
US3317086A true US3317086A (en) 1967-05-02

Family

ID=20257997

Family Applications (1)

Application Number Title Priority Date Filing Date
US522298A Expired - Lifetime US3317086A (en) 1965-02-02 1966-01-21 Storage apparatus for granular or pulverulent material

Country Status (5)

Country Link
US (1) US3317086A (de)
BE (1) BE675709A (de)
ES (1) ES322494A1 (de)
FR (1) FR1557611A (de)
GB (1) GB1128942A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657623A (en) * 1970-08-17 1972-04-18 Westinghouse Electric Corp System for tracking mill stand motor currents for optimizing the duty cycle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381454A (en) * 1943-03-25 1945-08-07 American Can Co Machine for filling products into containers
US3252402A (en) * 1961-05-23 1966-05-24 Smith Corp A O Free breathing storage structure for sterilized grain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381454A (en) * 1943-03-25 1945-08-07 American Can Co Machine for filling products into containers
US3252402A (en) * 1961-05-23 1966-05-24 Smith Corp A O Free breathing storage structure for sterilized grain

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657623A (en) * 1970-08-17 1972-04-18 Westinghouse Electric Corp System for tracking mill stand motor currents for optimizing the duty cycle

Also Published As

Publication number Publication date
FR1557611A (de) 1969-02-21
BE675709A (de) 1966-05-16
ES322494A1 (es) 1966-11-16
GB1128942A (en) 1968-10-02

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