EP0036695A1 - Tiroir obturateur grillagé - Google Patents

Tiroir obturateur grillagé Download PDF

Info

Publication number
EP0036695A1
EP0036695A1 EP81200308A EP81200308A EP0036695A1 EP 0036695 A1 EP0036695 A1 EP 0036695A1 EP 81200308 A EP81200308 A EP 81200308A EP 81200308 A EP81200308 A EP 81200308A EP 0036695 A1 EP0036695 A1 EP 0036695A1
Authority
EP
European Patent Office
Prior art keywords
grating
slide
strips
silo
top grating
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
EP81200308A
Other languages
German (de)
English (en)
Other versions
EP0036695B1 (fr
Inventor
Cornelis Josephus A. Louwers
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.)
Weegwerktuigenfabriek Alfra BV
Original Assignee
Weegwerktuigenfabriek Alfra BV
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 Weegwerktuigenfabriek Alfra BV filed Critical Weegwerktuigenfabriek Alfra BV
Publication of EP0036695A1 publication Critical patent/EP0036695A1/fr
Application granted granted Critical
Publication of EP0036695B1 publication Critical patent/EP0036695B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/58—Gates or closures having closure members sliding in the plane of the opening
    • B65D90/60—Gates or closures having closure members sliding in the plane of the opening and having one or more openings
    • 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
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices

Definitions

  • the invention relates to a grating slide for delivering material from a silo or the like comprising a fixed bottom grating and an apertured top grating adaptedto reciprocate with respect to the bottom grating.
  • Such a grating slide is known, for example, from Dutch Batent Ap' plication 6906937.
  • the top grating is displaceable between a completely closed state of the grating slide and a completely open state of the grating slide, whilst in many cases, when the grating slide is wholly or partly opened, the top grating can still be rapidly reciprocated with respect to a given medium position.
  • Such grating slides are, for example, very suitable for fast and accurately dosed delivery of material from the silo or the like.
  • silos are often stored powdery materials whose internal ohesion may vary, for example, may have strongly increased when the material has been stored in the silo for a given time, whilst the cohesion may furthermore be affected by temperature and humidity. It,therefore, often occurs that, when the grating slide is opened to deliver material from the silo, the material does not immediately flow away, but is retained in the silc . After some time, however, gravity may be able to overcome the cohesion of the material so that this material abruptly drops down, which may give rise to fluidization phenomena in the material moving through the opened grating slide. This particularly occurs when the slide is completely open.
  • the invention has for its object to provide a grating slide of the kind set forth, by which such inconvenient phenomena can be avoided.
  • this can be achieved by connecting with the top grating members located above the grating and formed by strips fastened to the top grating and disposed, viewed on plan, at least substantially perpendicularly above the passages of the top grating for acting on the material contained in a silo or the like.
  • the strips will act on the material located above the top grating in order to disturb the cohesion of this material so that the risk of retention of the material is avoided, whilst the strips constitute, in addition, a kind of screen for the passages of the top plate located beneath the strips, which has an advantageous effect on a controlled delivery of the material through these apertures.
  • a grating slide comprises a rectangular frame formed by two parallel, longitudinal beams 1 interconnected by transverse beams 2 and 3 extending at right angles to the end of the longitudinal beams 1.
  • the grating slide is provided with a fixed bottom grating formed by a plurality of parallel, relatively spaced, horizontal strips 4 extending between the longitudinal beams 1.
  • the top grating is formed by a plurality of parallel, relatively spaced strips 5 interconnected with the aid of a tie rod 6, which extends parallel to the longitudinal beams 1 and which can be reciprocated in known manner by means not shown.
  • the strips 5 of the reciprocatory top grating cover the passages of the grating slide located at the side of and between the strips 4 so that in this position of the top grating no material can be delivered from a silo or the like, the bottom side of which is provided with the grating slide shown in Fig. 1.
  • To the strips 5 are fastened upwardly extending supports 16, with the aid of which strips 17 extending parallel to the strips 5 are connected with the strips 5.
  • the disposition of the strips 17 is such that, viewed on plan, a strip 17 covers at least substantially completely an interstice between two neighbouring strips 5.
  • the supports 16 and the strips 17 will immediately act as cutting and scraping members on the material directly located above the top grating, so that the cohesion of this material is disturbed and the material can flow away as soon as the passages of the grating slide are released to some extent by the strips 5.
  • the strips 17 then not only have an efficient loosening effect on the material located above the top grating in the silo or the like, when said top grating is displaced, but they also prevent the material, when the grating slide is opened, from flowing at a high rate through the interstices released by the strips 5 between the strips 4, since the strips 17, so to say, have a discharging effect on the pressure exerted on the material passing through said openings.
  • thoseparts which correspond with the parts referred to in Fig. 1 have the same reference numerals and a further description of the construction or disposition of these parts is believed to be redundant.
  • grate-shaped strips 18 may be used rather than closed strips 17 and be formed by a plurality of narrow parallel strips so that the material can also flow through said grate-shaped strips.
  • Fig. 3 showns an embodiment corresponding with the embodiment shown in Fig. 1 of a grating slide, in which helical springs D are arranged between the upwardly extending supports. It will be obvious that the material located above the reciprocatory top grating can thus be very intensively influenced.
  • the turrsof the helical springs 19 will also affect the material located above the tope grating for breaking up the cohesion of said material.
  • the spring 19 preferably has such spring properties that upon such a displacement of the top grating it will start slightly vibrating. If the system in which the grating slide is incorporated is constructed so that in the desired, opened position of the grating slide the top grating is caused to move around a medium position, both the strips and the helical springs will continue exerting an advantageous agitating effect on the material, which contricutes to a regular, undisturbed flow of material from a silo or the like.
  • Fig. 4 shown an embodiment roughly corresponding with the embodiment shown in Fig. 3, but further helical springs 20 are provided above the strips 17. It will be obvious that in this construction the material can be affected up to a fairly great height above the reciprocatory top grating by the various members arranged above the top grating.
  • the strips 17 are, for example, possible to arrange the strips 17 so as to be adjustable and/or independantly displaceable with respect to the strips 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Food-Manufacturing Devices (AREA)
EP81200308A 1980-03-20 1981-03-19 Tiroir obturateur grillagé Expired EP0036695B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8001647 1980-03-20
NL8001647A NL8001647A (nl) 1980-03-20 1980-03-20 Roosterschuif.

Publications (2)

Publication Number Publication Date
EP0036695A1 true EP0036695A1 (fr) 1981-09-30
EP0036695B1 EP0036695B1 (fr) 1984-03-07

Family

ID=19835029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200308A Expired EP0036695B1 (fr) 1980-03-20 1981-03-19 Tiroir obturateur grillagé

Country Status (3)

Country Link
EP (1) EP0036695B1 (fr)
DE (1) DE3162465D1 (fr)
NL (1) NL8001647A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762091A3 (fr) * 1995-09-11 1998-03-18 Kyoji Co., Ltd. Obturateur pour granule et dispositif de pesage pour granule comportant celle-ci
WO1998015484A1 (fr) * 1996-10-04 1998-04-16 Eckhard Lorenz Dispositif de decharge pour un silo, en particulier egalement pour materiau en vrac coulant
WO2011115865A3 (fr) * 2010-03-16 2011-12-08 Schwing Bioset, Inc. Système d'usure pour réceptacle à cadre coulissant
CN106697709A (zh) * 2017-01-05 2017-05-24 安徽润发生物能源科技有限公司 一种生物质燃料加工用料仓

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6901932A (fr) * 1969-02-07 1970-08-11
NL6906937A (fr) * 1969-05-06 1970-11-10
CH510577A (de) * 1970-02-06 1971-07-31 Buehler Ag Geb Siloaustragvorrichtung
US4176767A (en) * 1977-01-05 1979-12-04 Franche Darius C Iv Dog food dispenser

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762091A3 (fr) * 1995-09-11 1998-03-18 Kyoji Co., Ltd. Obturateur pour granule et dispositif de pesage pour granule comportant celle-ci
AU705028B2 (en) * 1995-09-11 1999-05-13 Kyoji Co., Ltd. Granule gate and granule weighing machine incorporating the same
WO1998015484A1 (fr) * 1996-10-04 1998-04-16 Eckhard Lorenz Dispositif de decharge pour un silo, en particulier egalement pour materiau en vrac coulant
WO2011115865A3 (fr) * 2010-03-16 2011-12-08 Schwing Bioset, Inc. Système d'usure pour réceptacle à cadre coulissant
US8714900B2 (en) 2010-03-16 2014-05-06 Schwing Bioset, Inc. Wear system for receptacle with sliding frame
CN106697709A (zh) * 2017-01-05 2017-05-24 安徽润发生物能源科技有限公司 一种生物质燃料加工用料仓

Also Published As

Publication number Publication date
NL8001647A (nl) 1981-10-16
EP0036695B1 (fr) 1984-03-07
DE3162465D1 (en) 1984-04-12

Similar Documents

Publication Publication Date Title
US3973703A (en) Device for discharging powdery or granular material
EP0036695A1 (fr) Tiroir obturateur grillagé
DE2742353C2 (fr)
CA1057691A (fr) Dispositif d'accumulation volumetrique
EP0170732A2 (fr) Dispositif de déchargement et de dosage pour fourrage compacté, par exemple de l'herbe et produits similaires
DE68915326T2 (de) Lagerbehälter zum Speichern von pulverförmigen oder körnigen Materialien.
DE2617354B2 (de) Austragsvorrichtung für einen Schüttgutbehälter
DE2622630C3 (de) Vorrichtung zum Ausbringen von pulverförmigem oder körnigem Material
DE2831375C2 (de) Rüttelvorrichtung
DE2501916A1 (de) Durchflussregelungs- und klassierungsvorrichtung fuer einen trichter
WO2003106937A1 (fr) Balance pour detecter le debit massique selon le principe differentiel
DE3317727C2 (de) Vorrichtung zum Abgeben von Pulver und/oder Kügelchen
GB2112362A (en) Discharging powder and/or pellets from a hopper
DE69207917T2 (de) Kastenförmiger trichter mit rüttelboden
US6273024B1 (en) Managed feeding system
DE1036167B (de) Verschluss- und Gutauslaufvorrichtung fuer Grossraumbunker
RU1822849C (ru) Устройство дл разрушени сводов сыпучего материала в бункере
DE2105173C3 (de) Fördervorrichtung für körniges oder pulverförmiges Material
DE3017270A1 (de) Fuetterungsvorrichtung
US455997A (en) Grain-separator
SU1463650A1 (ru) Устройство дл выгрузки сыпучего материала из емкости
SU1665234A1 (ru) Устройство дл дозированной перегрузки сыпучих материалов
DE19940435C1 (de) Anordnung für Futterförderanlagen
DE2401902C2 (de) Einrichtung zum Austragen feinkörniger, insbesondere staubförmiger Schüttgüter aus Vorratsbunkern
DE2201175C2 (de) Futterungsanlage, msbes fur Rindvieh, Pferde und ähnliche Tiere

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT

17P Request for examination filed

Effective date: 19830309

R17P Request for examination filed (corrected)

Effective date: 19820309

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19840307

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19840307

Ref country code: BE

Effective date: 19840307

REF Corresponds to:

Ref document number: 3162465

Country of ref document: DE

Date of ref document: 19840412

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910529

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921201