EP0331880A1 - Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels - Google Patents

Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels Download PDF

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Publication number
EP0331880A1
EP0331880A1 EP89100701A EP89100701A EP0331880A1 EP 0331880 A1 EP0331880 A1 EP 0331880A1 EP 89100701 A EP89100701 A EP 89100701A EP 89100701 A EP89100701 A EP 89100701A EP 0331880 A1 EP0331880 A1 EP 0331880A1
Authority
EP
European Patent Office
Prior art keywords
heating conductor
anchors
armature
heating
deflections
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.)
Granted
Application number
EP89100701A
Other languages
German (de)
English (en)
Other versions
EP0331880B1 (fr
Inventor
Roland Ing. Grad. Abicht
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.)
ABICHT, ROLAND, ING. GRAD.
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT89100701T priority Critical patent/ATE96973T1/de
Publication of EP0331880A1 publication Critical patent/EP0331880A1/fr
Application granted granted Critical
Publication of EP0331880B1 publication Critical patent/EP0331880B1/fr
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
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/66—Supports or mountings for heaters on or in the wall or roof

Definitions

  • the invention relates to a device for holding meandering electrical heating conductors on the hot side of thermally insulating shaped bodies made of ceramic fibers, the heating conductors being held in the areas of their deflections by anchors which are arranged on the shaped bodies.
  • the mouths of two adjacent anchors arranged one behind the other in the longitudinal direction of a heating conductor are opposed to one another directed.
  • the distance between the aforementioned hook-shaped anchors is selected so that the meandering heating conductor can be subsequently attached to the anchors already fastened in the molded body.
  • the object of the invention is to increase the position of the heating conductor with simple means and measures without complicating the anchors acting on the deflections.
  • the solution to this problem is characterized by heat conductor holders arranged between the deflections of the heating conductors and at a distance from the deflections, anchored in the shaped bodies and engaging at least on the sides of the heating conductors facing away from the hot side of the shaped bodies.
  • the heating conductors are only partially or no longer removed from the anchors detected heat conductor deflections are now fixed in the correct position by the heat conductor brackets acting between the heat conductor deflections.
  • the latter prevent that the relatively long sections of the heating conductors located between the heating conductor deflections can bend towards the inside of the furnace, which among other things results in a reduction in the risk of damage to the heating conductors, for example when loading and / or emptying the industrial furnace.
  • heat conductor holders are releasably anchored to the shaped bodies.
  • heat conductor brackets in an electrically insulated manner, at least in the areas of the points which engage the heat conductor, so that electrical short circuits of the heat conductor are avoided by the heat conductor brackets.
  • a preferred design of the heating conductor mounts is characterized in that the latter consist of at least one anchor fastened to the molded body and one bolt fastened to the anchor, the bolts preferably also being detachably fastened to their anchors.
  • a particularly favorable embodiment is characterized in claim 6, wherein the bars can preferably also be held by means of two anchors engaging on the bar ends, so that only one bar would be required for a heating conductor.
  • the anchors of the heating conductor holders are designed to be insertable between two adjacent, straight heating conductor sections, so that the above-mentioned heating conductor holders can also be subsequently arranged on shaped bodies already equipped with heating conductors.
  • the anchors and bolts can be screwed together releasably.
  • a preferred variant is characterized in that the bolts are releasably connected with their anchors in the manner of a bayonet lock.
  • Another variant is characterized by anchors which are firmly inserted into the molded body and on which the bolts are adjustably mounted about the longitudinal axis of the anchors.
  • the elongate heating conductor sections located between the deflections of the heating conductors are each at least non-positively clamped between a bolt and an abutment arranged on an armature, in particular made of electrical insulating material.
  • a variant which is preferred under certain circumstances is characterized in claim 17.
  • a meandering electrical heating conductor 2 is arranged in front of the hot side of a molded body 1 made of ceramic fibers, the feed lines of which are led through the molded body 1 to the outside.
  • the mouths of two anchors 3, which follow one another in the longitudinal extension of the meandering heating conductor 2, are directed in opposite directions.
  • the vertical distance of the armatures 3 from one another is dimensioned such that the heating conductor 2 can first be suspended in the lower armature 3 and then in the upper armature 3.
  • the latter include the heating conductor deflections in each case by more than 180 °.
  • a further heating conductor holder is provided at a distance from the heating conductor deflections 4.
  • This heating conductor holder consists of an elongated bar 5 made of hard ceramic, which engages on the sides of the heating conductor facing away from the hot molded body side, which extends at right angles to the straight heating conductor sections located between the heating conductor deflections 4 and extends over the entire heating conductor 2.
  • the end parts of the bolt 5 are each held with a bolt-like, cylindrical armature 6 made of steel.
  • the latter are each detachably connected to a sleeve 7 made of ceramic, fixed in the molded body 1, in the manner of a bayonet lock.
  • the sleeve 7 has an oval clear cross-section, so that the armature 6 can be pulled out of the position shown in FIG. 3 from the sleeve 7 by rotating through 90 °, in order to be able, for example, to replace the heating conductor 2.
  • the armature 3 and possibly also the armature 6 according to FIG. 9 have a wave-shaped shaft part 8 which is dimensioned such that the upper and lower wave crests on the wall of a cylindrical one according to FIGS. 5 and 6 Support bore 9 without play, so that on the one hand the armature 6 is inevitably held in the correct position relative to the bore 9.
  • the shaft part 8 remains when it is inserted into the bore 9 filled with heat-resistant adhesive 10 over its entire length by the adhesive 10.
  • laterally striving projections 11 and 12 can be integrally formed on the latter, as shown in FIG. 6, which laterally center the armature 3 in the bore 9.
  • FIG. 7 and 8 show a further embodiment of a heating conductor holder, the latch 5 of which engages two adjacent, straight heating conductor sections.
  • a bolt-like anchor 6 engages through the elongated bolt 5 and, like that of FIG. 3, is detachably connected in a bayonet-lock-like manner to a sleeve 7 which is arranged in the molded body 1 in a non-releasable manner.
  • the latch 5 is made of hard ceramic and has a molded-on connecting piece 13 which engages between the two straight heating conductor sections in order to rule out electrical short circuits between the aforementioned heating conductor sections.
  • the outer diameter of the sleeve 7 is smaller than the distance between the two aforementioned heat conductor sections, so that this heat conductor holder can also be attached to a molded body 1 without manipulation.
  • a sleeve-like insert 14 which is supported on the hot side of the molded body 1 and between which and the bolt 5 the aforementioned heating conductor sections are non-positively clamped, is attached to the armature 6, which has a hammer head engaging the bolt 5 with a key attachment .
  • an anchor 6 is permanently attached to the molded body 1. Its end part protruding from the molded body 1 ends in a right-angled bend 15 which is inserted through an elongated opening 16 in the bolt 5 corresponding to the bend 15 can be.
  • the bolt 5 on the armature 6 is rotatable about its longitudinal axis.
  • the opening 16 extends in the direction of its longitudinal extent at right angles to the longitudinal extent of the bolt 5, so that after the bolt 5 has been fitted onto the anchor 6 and the bolt 5 has been rotated by 90 °, the bend 15 on the side facing away from the hot side of the molded body 1 of the bolt 5 supports and then clamps the heat conductor sections between them and an insert 14 'non-positively and releasably.
  • the insert 14 ' has an integrally formed and engaging socket 13 between the straight heating conductor sections.
  • the bar 5 can also extend beyond more than two straight heating conductor sections.
  • the bolt-like anchors 6 can also be designed as a screw and can be arranged to engage directly in the molded body 1. It is also possible to manufacture an anchor 6 and a bolt 5 in one piece from ceramic.

Landscapes

  • Resistance Heating (AREA)
  • Furnace Details (AREA)
EP89100701A 1988-03-09 1989-01-17 Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels Expired - Lifetime EP0331880B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100701T ATE96973T1 (de) 1988-03-09 1989-01-17 Vorrichtung zur halterung von elektrischen heizleitern in industrieoefen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3807721A DE3807721A1 (de) 1988-03-09 1988-03-09 Vorrichtung zur halterung von elektrischen heizleitern in industrieoefen
DE3807721 1988-03-09

Publications (2)

Publication Number Publication Date
EP0331880A1 true EP0331880A1 (fr) 1989-09-13
EP0331880B1 EP0331880B1 (fr) 1993-11-03

Family

ID=6349246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100701A Expired - Lifetime EP0331880B1 (fr) 1988-03-09 1989-01-17 Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels

Country Status (3)

Country Link
EP (1) EP0331880B1 (fr)
AT (1) ATE96973T1 (fr)
DE (1) DE3807721A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341441A2 (fr) * 1988-05-13 1989-11-15 Abicht, Roland, Ing. grad. Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel
US20100278208A1 (en) * 2007-12-05 2010-11-04 Sandvik Intellectual Property Ab Fastening means for terminals for electrical resistance elements
JP2016531379A (ja) * 2013-06-14 2016-10-06 サンドビック株式会社 二珪化モリブデン系セラミックス発熱体保持構造

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459801A (en) * 1923-06-26 Electric furnace
FR683770A (fr) * 1928-10-23 1930-06-17 Thomson Houston Comp Francaise Perfectionnements aux fours électriques et à leurs systèmes de chauffage
US1767172A (en) * 1923-09-17 1930-06-24 Electric Furnace Co Resistor grid and method of supporting same
US1861947A (en) * 1931-02-07 1932-06-07 Westinghouse Electric & Mfg Co Resistor support
FR2152048A5 (fr) * 1971-09-02 1973-04-20 Wilson Eng Co Inc Lee
DE2646890B1 (de) * 1976-10-16 1978-02-02 Degussa Vakuumofen mit graphitheizung
FR2382662A1 (fr) * 1977-03-04 1978-09-29 Sauder Industries Procede et appareil pour soutenir des elements dans une enceinte thermiquement isolee, en particulier dans un four ou un compartiment de refrigeration
US4443881A (en) * 1982-06-01 1984-04-17 Northcutt Donald R Suspension system for electric heating elements
US4573164A (en) * 1984-02-16 1986-02-25 Combustol Industria E Comercio Ltda. Support for electrical resistances of ovens or kilns with ceramic mantle thermal insulation
DE8803184U1 (de) * 1988-03-09 1988-05-05 Abicht, Roland, Ing.(grad.), 5828 Ennepetal Vorrichtung zur Halterung von elektrischen Heizleitern in Industrieöfen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1588611A (en) * 1921-06-25 1926-06-15 Westinghouse Electric & Mfg Co Electric furnace
SE8002541L (sv) * 1980-04-02 1981-10-03 Bulten Kanthal Ab Anordning for uppberande av elektriska motstandselement
BR8007655A (pt) * 1980-11-24 1982-07-27 Carborundum Sa Dispositivo de suporte ou sustentacao de elementos de aquecimento eletrico em fornos e em equipamentos,isolados com fibra ceramica

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459801A (en) * 1923-06-26 Electric furnace
US1767172A (en) * 1923-09-17 1930-06-24 Electric Furnace Co Resistor grid and method of supporting same
FR683770A (fr) * 1928-10-23 1930-06-17 Thomson Houston Comp Francaise Perfectionnements aux fours électriques et à leurs systèmes de chauffage
US1861947A (en) * 1931-02-07 1932-06-07 Westinghouse Electric & Mfg Co Resistor support
FR2152048A5 (fr) * 1971-09-02 1973-04-20 Wilson Eng Co Inc Lee
DE2646890B1 (de) * 1976-10-16 1978-02-02 Degussa Vakuumofen mit graphitheizung
FR2382662A1 (fr) * 1977-03-04 1978-09-29 Sauder Industries Procede et appareil pour soutenir des elements dans une enceinte thermiquement isolee, en particulier dans un four ou un compartiment de refrigeration
US4443881A (en) * 1982-06-01 1984-04-17 Northcutt Donald R Suspension system for electric heating elements
US4573164A (en) * 1984-02-16 1986-02-25 Combustol Industria E Comercio Ltda. Support for electrical resistances of ovens or kilns with ceramic mantle thermal insulation
DE8803184U1 (de) * 1988-03-09 1988-05-05 Abicht, Roland, Ing.(grad.), 5828 Ennepetal Vorrichtung zur Halterung von elektrischen Heizleitern in Industrieöfen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341441A2 (fr) * 1988-05-13 1989-11-15 Abicht, Roland, Ing. grad. Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel
EP0341441A3 (fr) * 1988-05-13 1991-07-03 Abicht, Roland, Ing. grad. Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel
US20100278208A1 (en) * 2007-12-05 2010-11-04 Sandvik Intellectual Property Ab Fastening means for terminals for electrical resistance elements
US8494026B2 (en) * 2007-12-05 2013-07-23 Sandvik Intellectual Property Ab Fastening means for terminals for electrical resistance elements
JP2016531379A (ja) * 2013-06-14 2016-10-06 サンドビック株式会社 二珪化モリブデン系セラミックス発熱体保持構造
US10251217B2 (en) 2013-06-14 2019-04-02 Sandvik Kk Molybdenum disilicide-based ceramic heating element holding structure

Also Published As

Publication number Publication date
DE3807721A1 (de) 1989-09-28
ATE96973T1 (de) 1993-11-15
EP0331880B1 (fr) 1993-11-03
DE3807721C2 (fr) 1989-12-21

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