EP0360066B1 - Conteneur étanche de maintien et de transport - Google Patents

Conteneur étanche de maintien et de transport Download PDF

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Publication number
EP0360066B1
EP0360066B1 EP89116334A EP89116334A EP0360066B1 EP 0360066 B1 EP0360066 B1 EP 0360066B1 EP 89116334 A EP89116334 A EP 89116334A EP 89116334 A EP89116334 A EP 89116334A EP 0360066 B1 EP0360066 B1 EP 0360066B1
Authority
EP
European Patent Office
Prior art keywords
container
sodium
pipe connection
gas
jacket
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
EP89116334A
Other languages
German (de)
English (en)
Other versions
EP0360066A2 (fr
EP0360066A3 (en
Inventor
Manfred Kiecker
Dieter Torke
Ludwig Dr. Lange
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Publication of EP0360066A2 publication Critical patent/EP0360066A2/fr
Publication of EP0360066A3 publication Critical patent/EP0360066A3/de
Application granted granted Critical
Publication of EP0360066B1 publication Critical patent/EP0360066B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means

Definitions

  • the innovation concerns a gas-tight lockable container for storage.
  • Such a container is generally known in the prior art.
  • the purpose of the innovation is to be able to keep such a container warm in a wide temperature range between room temperature and 600 ° C., under the condition of a minimal temperature difference between the location of the trace heating source and the more distant container surfaces.
  • molten alkali metals such as sodium or lithium
  • the melt flow electrolysis process have been kept liquid until they have been molded into solid blocks in containers to which the required heating energy has been supplied either by means of heat transfer oil or by heating elements attached to the outside of the container wall.
  • electrical trace heating e.g. With the help of heating elements, heating mats or heating sockets attached to the outside of the container, installation and maintenance are complex. If such a container is cleaned inside and outside with water or solvents, the trace heating must be dismantled and then reinstalled.
  • the innovation is based on the task of developing a temperature-controlled container which can be operated in a temperature range between room temperature and 600 ° C and in which the temperature difference over the entire heating surface, ie the temperature difference between the location of the heating source and the more distant parts of the heating surface, is minimal is.
  • the subject of the innovation is accordingly a gas-tight sealable container for storage, transport and, if necessary, sedimentation of substances which are solid at room temperature and which can be introduced and removed in the molten state under vacuum or preferably protective gas, in particular lithium metal, which may contain solid impurities in the melt, with cylindrical Middle piece and a lower and an upper, manhole bottom provided.
  • the new container is characterized by a space (1) for receiving sodium as a heat transfer medium double jacket (2), (3), on its outer jacket (3) a fill and vent pipe (4) and an overflow pipe (5) for the Sodium are attached, a plurality of sleeves (7) with electrical heating elements (8) inserted through the outer jacket of the lower dome in the space (1), arranged in a star shape, laterally in the cylindrical middle piece adjacent to the approaches of the dome bottom through the double jacket - And Ausbringstutzen (9) or (10) for the stored or transported goods, as well as a drain nozzle (12) arranged at the lowest point of the lower dished end, the section (11) lying below the nozzle (10) optionally Picks up sediment.
  • the temperature control device of the container thus consists of a jacket placed at a distance around the container wall.
  • heat sources in the form of exchangeable heating rods surrounded by protective tubes.
  • the cavity of the double jacket is filled with an alkali metal, preferably sodium, as a heat conductor or distributor.
  • the cavity remaining in the top of the container is evacuated so that a volume expansion of the sodium cannot cause an increase in pressure in the gas space.
  • the cavity is drawn up to the block flange of the manhole, which is located in the middle of the upper dished end.
  • the cavity has a fill, vent, overflow and drainage connection.
  • the fill and vent ports are combined.
  • Filling, venting and overflow nozzles are located in the upper area of the cavity, while the emptying nozzle is located at the lowest point of the jacket space. All nozzles are welded gas-tight after the sodium has been introduced.
  • the double jacket cavity preferably surrounds at least in part all of the nozzles of this container.
  • the heat source of the new heat retention system consists of 6 heating elements arranged in a star shape in the lower double dished head. These heating elements are inserted in protective tubes welded in without tension, so that if necessary, individual elements can be exchanged or removed during operation for cleaning.
  • the temperature of the heat-conducting medium, preferably sodium, is controlled both in the area of the dished end and in the cylindrical part of the double-jacket cavity.
  • the temperature control system is set to the desired temperature (this is 220 ° C. for storing the lithium under inert gas) and the double jacket 2, 3 is heated accordingly by means of the heating rods 8.
  • the container is gas-tightly evacuated via a nozzle (not shown) arranged on the top of the container and filled with inert gas. The process of evacuating and filling with inert gas is repeated until the atmosphere in the container is free of nitrogen, oxygen and water vapor.
  • the lithium product to be stored in liquid form can either be sucked in through the inlet connection 9 or, with suitable discharge of the volume of inert gas displaced by the lithium volume, can be introduced into the container in the same way without pressure in the free inlet will.
  • the temperature of the stored goods is measured by means of a temperature probe which extends into space 11 in the lower dished end.
  • the liquid storage of the respective intended product can take place absolutely safely by means of the uniform heating of the container made possible according to the innovation to temperatures above the product melting point. Storage temperatures up to 600 ° C are possible. If the product is to be recrystallized by solidification and melting, this can be carried out using the heat-conducting medium sodium without any temperature differences on all heated wall surfaces, in contrast to the localized heating or overheating phenomena when using one on the wall of the container attached electrical trace heating.
  • the lithium is conveyed out of the container using the usual technology (suction, pressing or letting it flow out via nozzle 10).
  • suction, pressing or letting it flow out via nozzle 10 For complete emptying of the container for cleaning, liquid and / or solid residues of the product located in the lower dished end can be easily exhausted or scraped out from above through the manhole under the action of argon protective gas.
  • the uniform heating of the entire container wall permits the setting of a temperature in the lithium just above its melting point, at which the reactivity of this element with respect to oxygen, nitrogen and the water vapor in the air is reduced to such an extent that the metal can be transferred to a collecting vessel in air, without the otherwise observed autoignition occurring.
  • the innovation thus makes a decisive contribution to improving safety when handling lithium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (1)

1. Réservoir à fermeture étanche aux gaz, destiné au stockage, transport et éventuellement sédimentation, sous vide ou de préférence sous gaz protecteur, de substances solides à la température ambiante, pouvant être introduites et extraites à l'état fondu, en particulier du métal lithium, qui éventuellement dans la fusion contient des impuretés solides, ce réservoir comportant un corps central cylindrique ainsi qu'un fond torosphérique inférieur et un fond torosphérique supérieur muni d'un trou d'homme, caractérisé:
― par une double enveloppe (2, 3), délimitant un espace (1), destiné à recevoir du sodium comme agent de transmission thermique, sur l'enveloppe extérieure (3) de laquelle est placée une tubulure de remplissage et de purge d'air (4), ainsi qu'un ajutage de trop plein (5) pour le sodium,
― par plusieurs manchons (7) comportant des cartouches électriques chauffantes (8), engagés dans l'espace (1) à travers l'enveloppe extérieure du fond torosphérique inférieur et disposés en étoile,
― par des ajutages de remplissage (9) et de soutirage (10) placés respectivement sur le côté dans la partie centrale cylindrique au voisinage des raccords des fonds torosphériques, traversant la double enveloppe et destinés au produit stocké ou transporté, ainsi que
― par un ajutage de vidage (12) pour le sodium, disposé au point le plus bas du fond torosphérique inférieur, la partie (11) située en dessous de l'ajutage (10) recevant éventuellement le dépôt.
EP89116334A 1988-09-17 1989-09-05 Conteneur étanche de maintien et de transport Expired - Lifetime EP0360066B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8811839U 1988-09-17
DE8811839U DE8811839U1 (de) 1988-09-17 1988-09-17 Gasdichter Behälter für Warmlagerung und -transport

Publications (3)

Publication Number Publication Date
EP0360066A2 EP0360066A2 (fr) 1990-03-28
EP0360066A3 EP0360066A3 (en) 1990-10-03
EP0360066B1 true EP0360066B1 (fr) 1992-01-29

Family

ID=6828075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116334A Expired - Lifetime EP0360066B1 (fr) 1988-09-17 1989-09-05 Conteneur étanche de maintien et de transport

Country Status (3)

Country Link
US (1) US4982871A (fr)
EP (1) EP0360066B1 (fr)
DE (2) DE8811839U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197627A (en) * 1991-03-08 1993-03-30 Petrolite Corporation Double walled storage tank
DE9113120U1 (de) * 1991-10-22 1991-12-05 Viessmann, Hans, Dr., 3559 Battenberg Doppelmantelbehälter
CN103952668B (zh) * 2014-05-14 2016-04-13 深圳市华星光电技术有限公司 可以侦测和防止高温金属材料泄露的加热容器及制造方法
JP6812929B2 (ja) * 2017-08-30 2021-01-13 トヨタ自動車株式会社 溶湯保持容器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686109A (en) * 1950-01-06 1954-08-10 Norton Co Gelatin melter
US2708436A (en) * 1951-03-12 1955-05-17 Wade H Foster Stock food cookers
US2968163A (en) * 1958-05-19 1961-01-17 Union Carbide Corp Apparatus for storing and dispensing liquefied gases
US2995268A (en) * 1958-09-05 1961-08-08 Boeing Co Insulated tank construction
US3097084A (en) * 1961-10-09 1963-07-09 Superior Air Products Co Liquefied gas container
FR1422353A (fr) * 1964-11-13 1965-12-24 Thomson Houston Comp Francaise Enceinte calorifugée à température interne sensiblement constante
FR2038554A5 (en) * 1969-03-18 1971-01-08 Merlin Gerin Crucible furnace
GB1401915A (en) * 1973-01-31 1975-08-06 Carves Simon Ltd Cryogenic storage tanks
FR2319074A1 (fr) * 1975-07-24 1977-02-18 Commissariat Energie Atomique Dispositif d'isolement thermique d'une cuve
US4105061A (en) * 1975-12-01 1978-08-08 Corning Limited Pressure vessels
DE2612635C3 (de) * 1976-03-25 1980-03-27 Willi 4600 Dortmund Pohl Thermosbehälter für warme Speisen mit einem Heizstab
US4236969A (en) * 1978-11-02 1980-12-02 Ljubivy Alexandr G System for cooling set of fuel assemblies arranged in reactor vessel
SU1230587A1 (ru) * 1983-07-18 1986-05-15 Свердловский институт народного хозяйства Способ заполнени паровод ной рубашки пищеварочного котла
FR2581080B1 (fr) * 1985-04-24 1987-06-19 Metaux Speciaux Sa Procede et dispositif de purification du lithium
SU1353968A1 (ru) * 1986-02-21 1987-11-23 Предприятие П/Я В-8088 Транспортный криогенный резервуар

Also Published As

Publication number Publication date
DE58900796D1 (de) 1992-03-12
EP0360066A2 (fr) 1990-03-28
US4982871A (en) 1991-01-08
DE8811839U1 (de) 1989-02-02
EP0360066A3 (en) 1990-10-03

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