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 materialInfo
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying 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
- F26B3/34—Drying 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)
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)
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)
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 |
-
1951
- 1951-03-13 DE DEO1503A patent/DE898276C/en not_active Expired
Patent Citations (3)
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)
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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