EP0527257B1 - Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées - Google Patents

Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées Download PDF

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Publication number
EP0527257B1
EP0527257B1 EP91113616A EP91113616A EP0527257B1 EP 0527257 B1 EP0527257 B1 EP 0527257B1 EP 91113616 A EP91113616 A EP 91113616A EP 91113616 A EP91113616 A EP 91113616A EP 0527257 B1 EP0527257 B1 EP 0527257B1
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EP
European Patent Office
Prior art keywords
cone
silo
central
relief
sliding
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
EP91113616A
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German (de)
English (en)
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EP0527257A1 (fr
Inventor
Dipl. Ing. Krauss Werner
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.)
IBAU Hamburg Ingenieurgesellschaft Industriebau mbH
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IBAU Hamburg Ingenieurgesellschaft Industriebau mbH
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Publication date
Application filed by IBAU Hamburg Ingenieurgesellschaft Industriebau mbH filed Critical IBAU Hamburg Ingenieurgesellschaft Industriebau mbH
Priority to DE91113616T priority Critical patent/DE59100490D1/de
Priority to EP91113616A priority patent/EP0527257B1/fr
Publication of EP0527257A1 publication Critical patent/EP0527257A1/fr
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Publication of EP0527257B1 publication Critical patent/EP0527257B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/4092—Storing receptacles provided with separate mixing chambers

Definitions

  • the invention relates to a silo according to the preamble of claim 1, known from DE-A-3 512 739.
  • silo A more general type of silo is known from DE-A-23 52 455. Such silos are used for storage and continuous mixing of different bulk materials, for example cement.
  • the bulk material in the silo space is ventilated and fluidized section by section with the aid of the air conveyor troughs and metered out through the existing outlet connections with the aid of metering slides.
  • a similar silo is known from EP-A-3 123 031.
  • the base of this known silo is formed by a central cone and an annular base. Before the fluidized bulk material leaves the silo through one of the many outlet connections, it first reaches a special, radial one arranged outlet chambers, which are sometimes very complicated in the various embodiments and therefore cause not inconsiderable additional construction costs.
  • silos have a large number of outlet nozzles, which always have to be connected to a downstream collecting container. There is a pre-metering from the silo outlets into the collecting tank and a further need metering from the collecting tank for variable follow-up conveying. These silos work satisfactorily in practice, but they are relatively complex.
  • EP-A-2 197 240 also describes a silo with a central displacement cone, the interior of which is partly designed as a relief and emptying chamber.
  • the central cone is supported on a flat inclined silo bottom shell.
  • a cylindrical shaft, which can be walked on and from which the emptying chamber can be inspected, is inserted into this central cone from below.
  • This inspection shaft has a relatively small diameter because it determines the clear chamber height, which is important for the bulk material expansion. Due to the shaft installation, a noticeable reduction in height is already required in relation to an emptying chamber without a shaft, which increases the risk of flooding. So there are space limitations in the shaft, so that the accommodation of additional devices, such as filters, etc., is no longer possible.
  • the invention has for its object to provide a silo of the type mentioned, the manufacturing cost and its operation is cheaper than it is the case with known silos, without reducing the efficiency and economy for emptying and continuous mixing.
  • the slide and relief cone creates an annular drainage channel in which the fluid solid-air mixture can expand and partially vent.
  • the dimensioning of the annular gap between the ring base and the cone edge, which is adapted to the goods to be stored, ensures that the frictional engagement is secure.
  • section ventilation bulk material only flows into the emptying channel from this section. The unventilated bulk material on the ring base remains in frictional engagement and consequently does not take part in the emptying.
  • outlet nozzles Preferably only two outlet nozzles are required, which are 180 ° apart.
  • the additional sliding or relief cone can be easily assembled from sheet steel parts, similar to a roof tile covering, on concrete strips of the central cone. There the bulk material is in frictional engagement on the sliding cone wall, the dividing lines do not have to be gas-tight. The components can abut each other without having to be additionally welded.
  • the production of this sliding cone skin is simple and inexpensive. As a result, the overall structure of the silo is simplified, but the operation is ensured in the usual manner with the required reliability.
  • Air conveyor troughs are arranged on the ring-shaped emptying channel, which is formed on the ring base by the covering of the sliding and relief cone, and are arranged separately from the air supply troughs in the outer, uncovered area of the ring base. These separate air conveying troughs in the area of the annular emptying channel run essentially tangentially and with a slight inclination in the direction of the assigned outlet connection.
  • the annular cone chamber between the two cones can advantageously be vented, wherein the vent can be equipped with a filter.
  • the silo 1 which is circular in cross-section, stands on an annular foundation 2.
  • the silo bottom is formed by the central cone 3, which is a self-supporting structure, and the annular bottom 4 between the central cone and the outer wall of the silo 1.
  • the ring base 4 is created by filling concrete 5 between the central cone 3 and silo wall 1, the height of the ring base can be chosen differently, so that the spans between the silo wall and cone can be changed depending on the bulk material as well as flow and storage conditions.
  • ring base 4 which practically forms a flat, inwardly inclined conical shell, radially extending air conveying channels 6 are arranged.
  • a sliding and relief cone 10 Above the central cone 3 is a sliding and relief cone 10, which is supported on the central cone and is connected to it.
  • the base surface of the sliding and relief cone 10 covers part of the ring base and thus forms an emptying channel 7, adjacent to the cutting area between the central cone and the ring base.
  • On the bottom area of the emptying channel there are tangentially running, separately controllable air conveying channels 8, which run flat to two silo outlet connections 9 and 9 ', which are provided at a distance of 180 ° at the foot of the central cone. The frictional change between ventilation of the bulk material is ensured on all sections 15.
  • the annular cone chamber between the two cones is provided with a vent 11, through which loosening air released can be sucked out of the upper space 16 of this annular cone chamber and cleaned by a filter 12.
  • the sliding and relief cone 10 is supported on concrete slats 13 and is held by them.
  • the air conveying channels 6 alternately fluidize the bulk material, so that it flows radially into the emptying channel 7 and from here reaches the selected outlet nozzle 9, 9 '.
  • Metering slides 14, 14 ' control the outlet volume flow of the solid-air mixture.
  • the annular gap between the base surface of the sliding and relief cone 10 and the ring base is designated 17.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Claims (7)

  1. Silo pour le stockage, le dosage et le mélangeage continu de marchandises en vrac fluidisables avec de préférence une section circulaire et un corps central (3) adapté à cette section, entre lequel et la paroi de silo un fond annulaire (4) incliné vers l'intérieur peu profondément est configuré, fond qui est occupé par des conduits d'alimentation en air (6) qui peuvent être aérés section par section, des tubulures d'évacuation (9) étant prévues dans la zone de la coupe entre le corps central et le fond annulaire, un cône de glissement ou de décharge (10) étant placé à un certain écart du corps central (3) au-dessus de cleui-ci, cône dont la surface de base imaginaire recouvre la surface annulaire, qui est adjacente au cône central et qui forme une partie du fond annulaire (4), en formant un canal de décharge annulaire (7) qui correspond à la surface annulaire, une fente annulaire (17) qui est de plus de 360° restant libre entre l'arête inférieure du corps de glissement ou de décharge (10) et le fond annulaire, caractérisé en ce que le corps central est configuré comme cône central et que le canal de décharge (7) est incliné peu profondément dans le sens de la périphérie vers les tubulures d'évacuation (9, 9').
  2. Silo selon la revendication 1, caractérisé en ce que des conduits d'alimentation d'air séparés (8), à l'allure essentiellement tangentielle, sont placés sur le fond du canal de décharge annulaire (7).
  3. Silo selon la revendication 1 ou 2, caractérisé en ce que le cône de glissement ou de décharge (10) s'appuie sur le cône central (3) à l'aide de nervures d'écartement ou de fixation (13).
  4. Silo selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins deux tubulures de décharge (9, 9') sont prévues qui sont réparties uniformément à la périphérie du cône central (3) et que des coulisseaux de dosage (14, 14') suivent les tubulures de décharge (9, 9').
  5. Silo selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la chambre du cône annulaire entre le cône central (3) et le cône de glissement ou de décharge (10) est aérée dans la zone supérieure.
  6. Silo selon la revendication 5, caractérisé en ce qu'un filtre (12) est placé en aval ou est rattaché à la conduite d'aération (11).
  7. Silo selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le cône de glissement ou de décharge (10) est formé par des pièces préfabriquées en tôle d'acier qui sont posées à la manière de tuiles.
EP91113616A 1991-08-14 1991-08-14 Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées Expired - Lifetime EP0527257B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE91113616T DE59100490D1 (de) 1991-08-14 1991-08-14 Silo zum Lagern, Dosieren und Durchlaufmischen von fluidisierfähigen Schüttgütern.
EP91113616A EP0527257B1 (fr) 1991-08-14 1991-08-14 Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91113616A EP0527257B1 (fr) 1991-08-14 1991-08-14 Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées

Publications (2)

Publication Number Publication Date
EP0527257A1 EP0527257A1 (fr) 1993-02-17
EP0527257B1 true EP0527257B1 (fr) 1993-10-13

Family

ID=8207043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113616A Expired - Lifetime EP0527257B1 (fr) 1991-08-14 1991-08-14 Silo de stockage, de dosage et de mélange par écoulement de matières en vrac susceptibles d'être fluidisées

Country Status (2)

Country Link
EP (1) EP0527257B1 (fr)
DE (1) DE59100490D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803123A (zh) * 2014-01-23 2015-07-29 上海聚宗实业有限公司 一种储料仓助流装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO343343B1 (en) * 2016-11-21 2019-02-04 Norsk Hydro As Apparatus and method for feeding doses of fluidisable materials
CN113387072A (zh) * 2021-07-14 2021-09-14 无锡满意包装机械有限公司 料罐锥阀固定站

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440833A1 (de) * 1984-11-08 1986-06-05 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg Silo fuer schuettgut, z.b. fuer zementrohmehl
DE3512739A1 (de) * 1985-04-09 1986-10-09 Pius 7900 Ulm Scherr Entleerungseinrichtung bei einem silo fuer massenschuettgueter
DE3727767A1 (de) * 1987-08-20 1989-04-13 Ibau Hamburg Ing Ges Schuettgutsilo mit pneumatischer entleerung und entluefteter auslaufkammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803123A (zh) * 2014-01-23 2015-07-29 上海聚宗实业有限公司 一种储料仓助流装置

Also Published As

Publication number Publication date
DE59100490D1 (de) 1993-11-18
EP0527257A1 (fr) 1993-02-17

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