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DE898276C - Method and device for drying electrically poorly conductive, pourable, in particular ceramic material - Google Patents

Method and device for drying electrically poorly conductive, pourable, in particular ceramic material

Info

Publication number
DE898276C
DE898276C DEO1503A DEO0001503A DE898276C DE 898276 C DE898276 C DE 898276C DE O1503 A DEO1503 A DE O1503A DE O0001503 A DEO0001503 A DE O0001503A DE 898276 C DE898276 C DE 898276C
Authority
DE
Germany
Prior art keywords
pourable
particular ceramic
ceramic material
poorly conductive
drying
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
Application number
DEO1503A
Other languages
German (de)
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.)
OSTARA MOSAIK und WANDPLATTENF
Original Assignee
OSTARA MOSAIK und WANDPLATTENF
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 OSTARA MOSAIK und WANDPLATTENF filed Critical OSTARA MOSAIK und WANDPLATTENF
Priority to DEO1503A priority Critical patent/DE898276C/en
Application granted granted Critical
Publication of DE898276C publication Critical patent/DE898276C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/32Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Description

Bekanntlich besteht das Material, aus dem später keramische Erzeugilisse u..dgl. hergestellt werden, aus Ton, .dem Beimengungen, wie Quarz, Feldspat, Farbzusätze us-,v., zugegeben werden. Dieses Gemisch wird als Aufbereitungsmaterial bezeichnet.It is well known that this is the material from which ceramic products will later be made etc. are made from clay, the admixtures such as quartz, feldspar, color additives us-, v., are admitted. This mixture is known as make-up material.

Dieses Aufbereitungsmaterial wird zur Zeit in Blöcke gepreßt, die ähnlich wie Hohlsteine Luftdurchtrittsöffnungen besitzen. Danach wird es in Trockenöfen getrocknet, die meistens nach dem Prinzip eines Luftumwälzofens arbeiten.. Sind die Blöcke trocken, so werden sie gebrochen, gemahlen und den weiteren Fertigungsprozessen zugeleitet. Zum Trocknen der Blöcke bedient man sich zumeist Öfen, durch die mit feuchten Blöcken beladene Loren hindurchfahren. Derartige Anlagen sind in der Erstellung jedoch sehr teuer und arbeiten unwirtschaftlich, da hohe Strahlungsverluste auftreten.This dressing material is currently pressed into blocks that similar to hollow stones have air passage openings. After that it is in drying ovens dried, which mostly work on the principle of an air circulation oven .. Are The blocks dry, so they are broken, ground and the further manufacturing processes forwarded. To dry the blocks one usually uses ovens through which with Drive wagons loaded with damp blocks through. Such systems are being created however, they are very expensive and work uneconomically, since high radiation losses occur.

Es ist allerdings schon vorgeschlagen worden, das in einer Schicht ausgebreitete Gut mittels Elektroden in einen elektrischen, eine Erwärmung des Gutes bewirkenden Stromkreis einzuschalten. Die Erfindung stellt insofern eine erhebliche Verbesserung des bekannten Verfahrens dar, als die Elzktroden stabförmig ausgebildet sind und derart in ,die Gutsschicht hineinragen und in dieser verteilt sind, daß eine möglichst gleichmäßige Erwärmung der gesamten Gutsscbüttung erzielt wird.However, it has already been suggested that this should be done in one shift Spread good by means of electrodes in an electrical, a heating of the good to switch on the effecting circuit. In this respect, the invention represents a considerable one Improvement of the known method is when the electrodes are rod-shaped are and in such a way protrude into the Gutsschicht and are distributed in this that a heating of the entire Gutsscüttung is achieved as evenly as possible.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung und der Zeichnung. In der Zeichnung ist eine Ausführungsmöglichkeit dargestellt, und zwar zeigt sie einen Schnitt durch Aufbereitungsmaterial mit an Platten befestigten Stiften zur Stromzufuhr.Further details of the invention emerge from the following Description and the drawing. In the drawing there is one possible implementation shown, namely it shows a section through processing material with Plates attached pins for power supply.

Durch die Platten 3 sind gegeneinander isolierte Stifte i geführt, die an ein Stromnetz angeschlossen werden können. Die Platten 3 werden so an das Aufbereitungsmaterial 2 herangebracht, daß die Stifte i in dieses, hineinragen. Wird jetzt eine elektrische Spannung an die Stiftei angelegt, :dann setzt ein Stromfluß ein, wodurch .das feuchte Aufbereitungsmaterial 2 sich erwärmt, -und das Wasser verdunstet dann. Mit sinkendem Feuchtigkeitsgehalt geht die Stromaufnahme zurück, die vollständig aussetzt, sobald das Material trocken ist. Der Trocknungsprozeß reguliert die Stromaufnahme also selber, eo daß nur minimale Verluste auftreten.Pins i insulated from one another are guided through the plates 3, that can be connected to a power grid. The plates 3 are attached to the Processing material 2 brought up that the pins i protrude into this. If an electrical voltage is now applied to the pins: then a flow of current sets in a, whereby .the moist treatment material 2 heats up, -and the water then evaporates. With decreasing moisture content, the power consumption decreases, which stops completely as soon as the material is dry. The drying process regulates the power consumption itself, so that only minimal losses occur.

Das hier geschilderte Verfahren läßt sich praktisch zum Trocknen aller -derjenigen Materialien verwenden, .die einen hohen spezifischen Widerstand haben.The procedure outlined here can be practically used for drying everything -use those materials that have a high specific resistance.

Claims (4)

PATENTANSPRÜCHE: i. Verfahren zum Trocknen von elektrisch -schlecht leitendem, schüttfähigem Material, insbesondere keramischen Massen, wobei das in einer Schicht ausgebreitete Gut mittels Elektroden in einem elektrischen, eine Erwärmung des Gutes, bewirkenden Stromkreis eingeschaltet ist, dadurch gekennzeichnet, daß die Elektroden stabförmig ausgebildet sind und derart in die Gutsschicht hineinragen und in dieser verteilt sind, daß eine möglichst gleichmäßige Erwärmung der gesamten Gutsschüttung erzielt wird. PATENT CLAIMS: i. Method of drying electrically bad conductive, pourable material, in particular ceramic masses, the in a layer spread material by means of electrodes in an electrical, a heating of the good, causing circuit is switched on, characterized in that the electrodes are rod-shaped and protrude into the material layer in this way and in this are distributed that a uniform as possible heating of the whole Gutsschüttung is achieved. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß Drehstrom Verwendung findet. 2. The method according to claim i, characterized in that that three-phase current is used. 3. Verfahren nach Anspruch i oder 2, dadurch gekennzeichnet, daß bei Verwendung von Drehstrom jeder Phase die Gegenphase zugeordnet ist. 3. The method according to claim i or 2, characterized in that that when using three-phase current each phase is assigned the opposite phase. 4. Vorrichtung zur Durchführung des Verfahrens nach den Ansprüchen i bis 3, gekennzeichnet durch korrosionsbeständige Stifte, (i) für die Stromzufuhr, die in das. Aufbereitungsmaterial (2) eingeführt werden. Angezogene Druckschriften: Deutsche Patentschriften Nr. 449 o79, 532 505, 730782. 4. Device for carrying out the method according to claims i to 3, characterized by corrosion-resistant pins, (i) for the power supply, which are introduced into the processing material (2). Cited publications: German patent specifications No. 449 079, 532 505, 730782.
DEO1503A 1951-03-13 1951-03-13 Method and device for drying electrically poorly conductive, pourable, in particular ceramic material Expired DE898276C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO1503A DE898276C (en) 1951-03-13 1951-03-13 Method and device for drying electrically poorly conductive, pourable, in particular ceramic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO1503A DE898276C (en) 1951-03-13 1951-03-13 Method and device for drying electrically poorly conductive, pourable, in particular ceramic material

Publications (1)

Publication Number Publication Date
DE898276C true DE898276C (en) 1953-11-30

Family

ID=7349583

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO1503A Expired DE898276C (en) 1951-03-13 1951-03-13 Method and device for drying electrically poorly conductive, pourable, in particular ceramic material

Country Status (1)

Country Link
DE (1) DE898276C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082857B (en) * 1954-01-23 1960-06-02 Paul Lippke Process for improving dewatering and comparing the drying of endless webs of fibrous materials

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE449079C (en) * 1924-11-26 1927-09-01 Siemens Elektrowaerme Ges M B Method and device for heating and drying plastic masses and tissues by means of an electric current
DE532505C (en) * 1928-10-09 1931-12-04 Gutehoffnungshuette Oberhausen Process for dewatering damp substances
DE730782C (en) * 1939-11-02 1943-01-18 Ig Farbenindustrie Ag Arrangement for electrical heating and drying of the surface of electrically poorly conductive bodies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE449079C (en) * 1924-11-26 1927-09-01 Siemens Elektrowaerme Ges M B Method and device for heating and drying plastic masses and tissues by means of an electric current
DE532505C (en) * 1928-10-09 1931-12-04 Gutehoffnungshuette Oberhausen Process for dewatering damp substances
DE730782C (en) * 1939-11-02 1943-01-18 Ig Farbenindustrie Ag Arrangement for electrical heating and drying of the surface of electrically poorly conductive bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082857B (en) * 1954-01-23 1960-06-02 Paul Lippke Process for improving dewatering and comparing the drying of endless webs of fibrous materials

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