EP0084750A1 - Entladevorrichtung für Behälter - Google Patents

Entladevorrichtung für Behälter Download PDF

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Publication number
EP0084750A1
EP0084750A1 EP82402325A EP82402325A EP0084750A1 EP 0084750 A1 EP0084750 A1 EP 0084750A1 EP 82402325 A EP82402325 A EP 82402325A EP 82402325 A EP82402325 A EP 82402325A EP 0084750 A1 EP0084750 A1 EP 0084750A1
Authority
EP
European Patent Office
Prior art keywords
silo
buckets
devices according
emptying devices
ventilation
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.)
Granted
Application number
EP82402325A
Other languages
English (en)
French (fr)
Other versions
EP0084750B1 (de
Inventor
Jean Henri Lagneau
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FR8200575A external-priority patent/FR2519943A1/fr
Priority claimed from FR8210650A external-priority patent/FR2528808B2/fr
Application filed by Individual filed Critical Individual
Publication of EP0084750A1 publication Critical patent/EP0084750A1/de
Application granted granted Critical
Publication of EP0084750B1 publication Critical patent/EP0084750B1/de
Expired legal-status Critical Current

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Classifications

    • 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

  • the present invention relates to improvements to the emptying devices of silos. With a flat bottom for grains or the like.
  • silos pose a problem at the end of their emptying. Indeed, as long as the volume of product is important, the emptying is carried out by gravity but towards the end of the emptying, the grains form on the bottom of the silo an oblique heap which does not evacuate any more because the mass which it represents, without being negligible since it can reach in usual silos several hundred quintals, no longer crumbles.
  • the floor of the silo has openings obtained by making slits in the metal plate constituting said floor of the silo then by pushing the metal located on one side of the slit: thus "punctures" are made in the metal.
  • a second method consists in making sheaths on the bottom of the silo alternating flat parts and hollow ribs having on each of their flanks "punctures" of air outlet, each of the ribs forming a ventilation channel. is not satisfactory either, because the grains rub on the parts of the floor between two ribs where an energy expenditure to overcome this friction.
  • the air jet at the outlet of the "punctures” extends obliquely with respect to the direction of advancement of the grains, a certain energy is still consumed in pure waste.
  • the emptying is done by sending the air through two ventilation channels defining a drain groove.
  • the emptying is done by sending the air through two ventilation channels defining a drain groove.
  • the present invention which overcomes these drawbacks, relates to a silo, of the type of those comprising a floor maintained above their bottom and having hollow ribs providing under the floor ventilation corridors separated by flat parts and of the kind of those in which the air enters into buckets, delimited by the floor and two adjacent ribs, by means of transverse slots provided on the bottom of said buckets, characterized in that a plate is arranged above each slot and extends partially above the underlying plate disposed downstream, providing a slot between them, the length of overlap being greater than that of the slope of the product in question in line with the slot.
  • the floor of the silo has a slope, the value of which depends on the length of the plates and the height of the gap between them. In practice, this slope is very slight and is less than 4 %.
  • Such an arrangement allows, inter alia, fractional emptying of the silo without requiring the use of large powers.
  • the width of the slots is of the order of 1.5 millimeters.
  • the applicant has adopted a third solution which consists in significantly increasing the section of each slot.
  • plates are used, the ends of which are folded down, for the front end and, upwards for the rear end, each part thus folded having a plurality of oblong orifices extending vertically and the width of which is around 1.5 millimeters.
  • the device of the invention is applied to a silo 1 with a rectangular section and a flat bottom 2.
  • a metal floor formed by the alternation of flat parts 3 and ribs 4 with inverted V section.
  • Vertical partitions 5 extend from the bottom 2 to the floor, providing ventilation passages 6.
  • Each flat part 3 forms with the oblique flanks of the adjacent ribs of the drainage buckets 7.
  • Each flat part 3 has transverse slots 8.
  • each slot 3 is disposed a plate 9, substantially horizontal, welded to the floor by its end placed upstream and by its sides while its free end 9a disposed downstream and which extends partially on the underlying plate , household with the latter an IO slot.
  • the length L of the covering is greater than the length 1 of the embankment slope of the product considered at the level of the slot 10 (FIG. 8).
  • Each of the buckets 7 is connected to a chute 11 extending out of the silo.
  • the corridors 6 open, through orifices 13 in the wall of the silo, into a channel 14 pressurized through of said wind tunnel.
  • Each of the orifices 13 can be closed by a flap 15.
  • the chutes 11 open, in leaktight manner, into a discharge duct 16 extending out of the channel 14 and comprising a handling member such as a conveyor belt 17.
  • Each chute is provided with a usual sealing device and not shown.
  • the bottom 18 of the silo is flat and inclined at a slope of the order of 5%.
  • ribs 19 of inverted V section resting on said bottom by means of vertical wings 20 and 21.
  • Each ventilation passage 6 is delimited by the bottom 18, by the wing 20, by the rib 19, by plates 22 joining two ribs and by the wing 20 of the adjacent rib.
  • the wing 21 of each rib has orifices 23 whose total section is greater than that of the ventilation passage 6.
  • Each plate 22, of slightly trapezoidal shape, has along its large base 22a a portion 24 bent downwards and along its small base 22b a portion 25 bent upwards.
  • oblong holes 26 are provided, the width of which is less than the diameter of the ensiled grains. In practice, the width of each oblong hole is of the order of 1.5 millimeters.
  • each part 24 rests on the underlying plate (FIG. 10).
  • each ventilation passage is about half that of the outlet duct of the fan which supplies it.
  • the assembly formed by the rib and its two wings can be constituted by a tunnel made of corrugated sheet metal with a circular or elliptical profile.
  • the total section of the oblong orifices provided on the rear part 25 of each plate can be greater than that of the orifices of the front part 24.
  • the lanes 6 and the buckets 7 pass through the wall of said silo and extend to that of said channel, said troughs connecting tightly to the discharge pipe, fitted as a return conveyor, by means of the usual chute.
  • the part of the buckets extending outside the silo is preferably covered. This provision applies particularly to silos with a circular base.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)
EP82402325A 1982-01-15 1982-12-17 Entladevorrichtung für Behälter Expired EP0084750B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8200575A FR2519943A1 (fr) 1982-01-15 1982-01-15 Perfectionnements aux dispositifs de vidange des silos
FR8200575 1982-01-15
FR8210650 1982-06-18
FR8210650A FR2528808B2 (fr) 1982-06-18 1982-06-18 Perfectionnements aux dispositifs de vidange des silos

Publications (2)

Publication Number Publication Date
EP0084750A1 true EP0084750A1 (de) 1983-08-03
EP0084750B1 EP0084750B1 (de) 1986-03-12

Family

ID=26222708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82402325A Expired EP0084750B1 (de) 1982-01-15 1982-12-17 Entladevorrichtung für Behälter

Country Status (8)

Country Link
US (1) US4504177A (de)
EP (1) EP0084750B1 (de)
AR (1) AR229136A1 (de)
AU (1) AU545872B2 (de)
BR (1) BR8300133A (de)
CA (1) CA1232564A (de)
DE (1) DE3269909D1 (de)
WO (1) WO1983002438A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551735A1 (fr) * 1983-09-09 1985-03-15 Lagneau Jean Perfectionnements aux dispositifs de vidange des silos
FR2601933A1 (fr) * 1986-07-23 1988-01-29 Peters Ag Claudius Installation d'evacuation pour silos contenant des produits en vrac evacues par de l'air souffle
US4917545A (en) * 1986-04-04 1990-04-17 Lagneau Jean Henri Apparatus for controlling material flow
FR2703035A1 (fr) * 1993-03-26 1994-09-30 Agro Lorin Dispositif de vidange de silo de matériau granuleux.
WO1999036335A1 (en) * 1997-12-29 1999-07-22 Pm-Luft Ab Method for evacuating a storage silo for bulk goods, e.g. cereal grain, and an evacuation conveyor thereto

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456507B (sv) * 1984-11-12 1988-10-10 Pieux Armes Int Forfarande och anordning for att medelst vibrationer packa ett jordlager
US4676742A (en) * 1985-02-25 1987-06-30 Indalloy Division Of Indal Limited Preheater for reverberatory melting furnaces
US5026240A (en) * 1985-02-25 1991-06-25 Indalloy, Division Of Indal Limited Charging device
US5287586A (en) * 1992-04-09 1994-02-22 Waldorf Corporation Material collecting/removal apparatus
US10086526B2 (en) * 2016-10-04 2018-10-02 Geo. M. Martin Company Puffer pan
FR3130867B1 (fr) * 2023-02-24 2024-06-28 Gillouaye Sas Silo de stockage de matière, notamment de céréales

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1216009A (en) * 1967-06-03 1970-12-16 August Heins Improvements in or relating to containers
FR2115148A3 (de) * 1970-11-19 1972-07-07 Samain Fernand
GB1521745A (en) * 1976-06-16 1978-08-16 Bentall & Co Ltd E Grain drying apparatus
FR2380969A1 (fr) * 1977-02-18 1978-09-15 Zemedelsky Nakupni Zasobovaci Installation pour l'evacuation pneumatique de matiere en vrac d'emplacement au sol et autres emplacements de magasinage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492585A (en) * 1945-05-19 1949-12-27 George A Kohout Stoker
GB734036A (en) * 1951-12-11 1955-07-20 Henry Ripley Schemm Automatic unloading device for pulverulent or pulverised materials
US2882097A (en) * 1956-12-19 1959-04-14 Arvid J Hamren Air-conveyor
SU654511A1 (ru) * 1977-10-05 1979-03-30 Всесоюзный Институт По Проектированию Организации Энергетического Строительства "Оргэнергострой" Пневмобетоноукладчик

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1216009A (en) * 1967-06-03 1970-12-16 August Heins Improvements in or relating to containers
FR2115148A3 (de) * 1970-11-19 1972-07-07 Samain Fernand
GB1521745A (en) * 1976-06-16 1978-08-16 Bentall & Co Ltd E Grain drying apparatus
FR2380969A1 (fr) * 1977-02-18 1978-09-15 Zemedelsky Nakupni Zasobovaci Installation pour l'evacuation pneumatique de matiere en vrac d'emplacement au sol et autres emplacements de magasinage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551735A1 (fr) * 1983-09-09 1985-03-15 Lagneau Jean Perfectionnements aux dispositifs de vidange des silos
US4917545A (en) * 1986-04-04 1990-04-17 Lagneau Jean Henri Apparatus for controlling material flow
FR2601933A1 (fr) * 1986-07-23 1988-01-29 Peters Ag Claudius Installation d'evacuation pour silos contenant des produits en vrac evacues par de l'air souffle
FR2703035A1 (fr) * 1993-03-26 1994-09-30 Agro Lorin Dispositif de vidange de silo de matériau granuleux.
WO1999036335A1 (en) * 1997-12-29 1999-07-22 Pm-Luft Ab Method for evacuating a storage silo for bulk goods, e.g. cereal grain, and an evacuation conveyor thereto

Also Published As

Publication number Publication date
DE3269909D1 (en) 1986-04-17
AU1106083A (en) 1983-07-28
BR8300133A (pt) 1983-10-04
CA1232564A (fr) 1988-02-09
US4504177A (en) 1985-03-12
AR229136A1 (es) 1983-06-15
EP0084750B1 (de) 1986-03-12
AU545872B2 (en) 1985-08-01
WO1983002438A1 (en) 1983-07-21

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