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DE202011004798U1 - Replaceable heating cassette - Google Patents

Replaceable heating cassette Download PDF

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Publication number
DE202011004798U1
DE202011004798U1 DE202011004798U DE202011004798U DE202011004798U1 DE 202011004798 U1 DE202011004798 U1 DE 202011004798U1 DE 202011004798 U DE202011004798 U DE 202011004798U DE 202011004798 U DE202011004798 U DE 202011004798U DE 202011004798 U1 DE202011004798 U1 DE 202011004798U1
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DE
Germany
Prior art keywords
heating cassette
exchangeable
cassette
heating
furnace
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
DE202011004798U
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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.)
Cerapro Hochtemperaturtechnik 90562 GmbH
CERAPRO HOCHTEMPERATURTECHNIK GmbH
Original Assignee
Cerapro Hochtemperaturtechnik 90562 GmbH
CERAPRO HOCHTEMPERATURTECHNIK 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 Cerapro Hochtemperaturtechnik 90562 GmbH, CERAPRO HOCHTEMPERATURTECHNIK GmbH filed Critical Cerapro Hochtemperaturtechnik 90562 GmbH
Priority to DE202011004798U priority Critical patent/DE202011004798U1/en
Publication of DE202011004798U1 publication Critical patent/DE202011004798U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Furnace Details (AREA)

Abstract

Austauschbare Heizkassette für Schmelz und Warmhalteanlagen für NE-(Nicht Eisenmetalle)Metalle für Temperaturbereiche von 450–1350°C, dadurch gekennzeichnet, dass 1. Die Austauschbare Heizkassette aus einem Heizeinsatz (1) einem thermisch isolierenden keramischen Unterbau (2) sowie einem gut Wärme leitenden keramischen Deckel (3) besteht.Interchangeable heating cassette for melting and holding systems for non-ferrous (non-ferrous) metals for temperature ranges from 450–1350 ° C, characterized in that 1. The exchangeable heating cassette consists of a heating insert (1), a thermally insulating ceramic base (2) and good heat conductive ceramic cover (3).

Description

Zum Stand der Heiztechnik im Bereich vom Schmelzen und Warmhalten von Nichteisenmetallen (NE Metalle – so wie Aluminium, Kupfer, Magnesium – oder deren Legierungen) gehören metallische oder keramische Heizelemente, die oberhalb der NE Schmelze angeordnet sind. Eine weitere Möglichkeit stellen Tauchheizelemente dar, die aus einem elektrischen Heizelement und einem Schutzrohr aus Keramik bestehen und direkt in die Schmelze – analog Tauchsieder – eingetaucht werden. Allen vorhandenen System ist gleich, dass der Wärmeübertrag an die Schmelze durch die Überwindung grosser Strahlungsräume Und damit verbundener Energieverluste uneffektiv ist. Gleicher Mangel gilt für Heizsysteme, die auf Basis Gaswärme arbeiten. Ebenso sind Tauchheizelemente mechanisch oder mangels Temperaturwechselbeständigkeit (TWB) sehr bruchanfällig.The state of heating technology in the field of melting and keeping non-ferrous metals (non-ferrous metals - such as aluminum, copper, magnesium - or their alloys) include metallic or ceramic heating elements, which are arranged above the NE melt. Another possibility are immersion heaters, which consist of an electric heating element and a protective tube made of ceramic and are immersed directly in the melt - analog immersion heater. All existing systems are equal in that the transfer of heat to the melt by overcoming large radiation spaces and associated energy losses is ineffective. The same shortcoming applies to heating systems that work on the basis of gas heat. Likewise immersion heaters are mechanically or due to lack of thermal shock resistance (TWB) very susceptible to breakage.

Der Einsatz von Heizelementen in den Ofenboden würde sowohl die Systemeffektivität erhöhen als auch die Bruchgefahr deutlich reduzieren.The use of heating elements in the furnace bottom would increase both the system's effectiveness and significantly reduce the risk of breakage.

Es wurde bereits in der Vergangenheit versucht, die Heizelemente in die Ofenisolierung (Boden oder Seiten) zu integrieren. Leider liegt unserer Kenntnis nach keine funktionierende Lösung vor. Entweder funktioniert der Wärmeübergang nicht oder die Heizelemente werden durch unterschiedlich Ausdehnungskoeffizienten oder das unterschiedliche TWB Verhalten kurzfristig zerstört.It has been tried in the past to integrate the heating elements in the furnace insulation (floor or sides). Unfortunately, to our knowledge there is no working solution. Either the heat transfer does not work or the heating elements are destroyed in the short term by different coefficients of expansion or the different TWB behavior.

Im Gegensatz zu bisherigen Lösungen liegt unser Ansatz darin, dass Heizelement (1) als eine separate austauschbare Heizeinheit/Heizkassettte (2 und 3) in den Ofenboden oder Seitenwände zu integrieren. Dadurch wird eine freie Beweglichkeit aller in der Isolierung vorhandenen Komponenten – so auch des Heizsystems – ermöglicht. Das Heizsegment ist so aufgebaut und in den Ofenboden installiert, dass kein direkter Kontakt zu der NE Schmelzen besteht. Die Heizkassette ist in der Anwendung frei von mechanischen Spannungen oder Lasten, da diese durch eine zusätzlich in das Mauerwerk (4) eingebrachte keramische Platte (5) übernommen wird. Durch geschickte Auswahl von gut Wärmeleitenden Werkstoffen oberhalb der Platte wird ein guter Wärmetransport zur NE Schmelze realisiert.Unlike previous solutions, our approach is that heating element ( 1 ) as a separate replaceable heating unit / heating cassette ( 2 and 3 ) to integrate into the furnace bottom or side walls. As a result, a free mobility of all existing in the insulation components - including the heating system - allows. The heating segment is constructed and installed in the furnace bottom so that there is no direct contact with the NE melts. The heating cassette is in the application free of mechanical stresses or loads, as this is due to an additional in the masonry ( 4 ) introduced ceramic plate ( 5 ) is taken over. By skillful selection of good heat-conducting materials above the plate, a good heat transfer to the NE melt is realized.

Claims (8)

Austauschbare Heizkassette für Schmelz und Warmhalteanlagen für NE-(Nicht Eisenmetalle)Metalle für Temperaturbereiche von 450–1350°C, dadurch gekennzeichnet, dass 1. Die Austauschbare Heizkassette aus einem Heizeinsatz (1) einem thermisch isolierenden keramischen Unterbau (2) sowie einem gut Wärme leitenden keramischen Deckel (3) besteht.Exchangeable heating cassette for melting and hot keeping equipment for non-ferrous metals Non-ferrous metals for temperature ranges of 450-1350 ° C, characterized in that 1. The exchangeable heating cassette is made of a heating element ( 1 ) a thermally insulating ceramic substructure ( 2 ) and a good heat conductive ceramic lid ( 3 ) consists. Austauschbare Heizkassette, nach Anspruch 1, dadurch gekennzeichnet, dass die gesamte Heizkassette rund oder eckig ist.Exchangeable heating cassette, according to claim 1, characterized in that the entire heating cassette is round or square. Austauschbare Heizkassette, nach Anspruch 1 und 2, dadurch gekennzeichnet dass, Teile 1, 2 und 3 nicht fest miteinander verbunden sind.Exchangeable heating cassette, according to claim 1 and 2, characterized in that parts 1, 2 and 3 are not firmly connected to each other. Austauschbare Heizkassette, nach Anspruch 1, 2, und 3, dadurch gekennzeichnet, dass die gesamte Heizkassette in den Ofenboden (4) oder Ofenseiten integriert wirdExchangeable heating cassette, according to claim 1, 2, and 3, characterized in that the entire heating cassette in the furnace bottom ( 4 ) or furnace sides is integrated Austauschbare Heizkassette, nach Anspruch 1, 2, 3, und 4, dadurch gekennzeichnet, dass die gesamte Heizkassette nicht fest sondern leicht wechselbarbar durch Schieben oder Ziehen in den Ofenboden oder Ofenseiten integriert wird.Exchangeable heating cassette, according to claim 1, 2, 3, and 4, characterized in that the entire heating cassette is not fixed but easily replaceable integrated by pushing or pulling in the furnace bottom or sides of the furnace. Austauschbare Heizkassette, nach Anspruch 1, 2, 3, 4, und 5, dadurch gekennzeichnet, dass die Heizkassette keinen direkten Kontakt zum Schmelz oder Warmhaltegut hatExchangeable heating cassette, according to claim 1, 2, 3, 4, and 5, characterized in that the heating cassette has no direct contact with the enamel or holding goods Austauschbare Heizkassette, nach Anspruch 1, 2, 3, 4, 5, und 6, dadurch gekennzeichnet, dass die Heizkassette gegen eine, in Feuerfestisolierung eingebettete keramische Platte (5) mit guter Wärmeleitfähigkeit gedrückt wird.Exchangeable heating cassette, according to claim 1, 2, 3, 4, 5, and 6, characterized in that the heating cassette against a, embedded in refractory insulation ceramic plate ( 5 ) is pressed with good thermal conductivity. Austauschbare Heizkassette, nach Anspruch 1, 2, 3, 4, 5, 6 und 7, dadurch gekennzeichnet, dass die gut wärmeleitfähige keramische Platte einen Anteil von mindestens 40% Siliziumkarbid (SiC) hat.Replaceable heating cassette, according to claim 1, 2, 3, 4, 5, 6 and 7, characterized in that the good thermal conductivity ceramic plate has a content of at least 40% silicon carbide (SiC).
DE202011004798U 2011-04-02 2011-04-02 Replaceable heating cassette Expired - Lifetime DE202011004798U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202011004798U DE202011004798U1 (en) 2011-04-02 2011-04-02 Replaceable heating cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011004798U DE202011004798U1 (en) 2011-04-02 2011-04-02 Replaceable heating cassette

Publications (1)

Publication Number Publication Date
DE202011004798U1 true DE202011004798U1 (en) 2011-06-09

Family

ID=44313654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202011004798U Expired - Lifetime DE202011004798U1 (en) 2011-04-02 2011-04-02 Replaceable heating cassette

Country Status (1)

Country Link
DE (1) DE202011004798U1 (en)

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R207 Utility model specification

Effective date: 20110714

R150 Utility model maintained after payment of first maintenance fee after three years
R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20140505

R151 Utility model maintained after payment of second maintenance fee after six years
R158 Lapse of ip right after 8 years