EP1051880B1 - Vis transporteuse chauffante - Google Patents

Vis transporteuse chauffante Download PDF

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Publication number
EP1051880B1
EP1051880B1 EP99901663A EP99901663A EP1051880B1 EP 1051880 B1 EP1051880 B1 EP 1051880B1 EP 99901663 A EP99901663 A EP 99901663A EP 99901663 A EP99901663 A EP 99901663A EP 1051880 B1 EP1051880 B1 EP 1051880B1
Authority
EP
European Patent Office
Prior art keywords
transfer member
shaft
transfer
helical portion
insulating material
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
EP99901663A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1051880A1 (fr
Inventor
Olivier Lepez
Philippe Sajet
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.)
ETIA Evaluation Technologique Ingenierie et Applications SARL
Original Assignee
ETIA Evaluation Technologique Ingenierie et Applications SARL
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Filing date
Publication date
Application filed by ETIA Evaluation Technologique Ingenierie et Applications SARL filed Critical ETIA Evaluation Technologique Ingenierie et Applications SARL
Publication of EP1051880A1 publication Critical patent/EP1051880A1/fr
Application granted granted Critical
Publication of EP1051880B1 publication Critical patent/EP1051880B1/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
    • H05B3/40—Heating elements having the shape of rods or tubes

Definitions

  • the present invention relates to a device for transfer and heat treatment of divided solids such as powdery materials.
  • Transfer and processing devices thermal commonly used in industry include a transfer member and a heating treatment means thermal.
  • the transfer is a vibrating tubular envelope receiving the divided solids.
  • the heat treatment is then ensured by heating the tubular casing.
  • Such devices are difficult to implement and are relatively expensive.
  • a second type of device comprising at least one transfer member having an axis longitudinal and a helical part, mounted to rotate around its longitudinal axis in a tubular envelope and connected to an output shaft of a drive motor in rotation in accordance with the preamble of claim 1.
  • the heating means is then constituted either by the envelope (then formed of a double envelope to make circulate a heat transfer fluid, or externally equipped heating resistors), either by a tube, around from which the propeller winds, said tube being traversed by a fluid brought to a high temperature.
  • heating means consists of the envelope is for example illustrated by document US-A-3 589 834.
  • This document describes a mixing device for food products, including a brewing member received in an enclosure intended to contain the products to mix and process, and a heating process thermal.
  • the brewing member includes a tree around from which a propeller is wound, including an outer surface supports a heating tape (see figures 4 to 6), which heating tape includes electrically conductive wire zigzag embedded in a thin layer of material dielectric.
  • the heating means consists of a hollow tube traversed by a fluid brought to a high temperature is for example illustrated by the document WO-A-92/19372.
  • This document describes a transfer device comprising two transfer members formed by a shaft hollow around which a propeller winds, and heating resistors are arranged inside each hollow shaft to provide heating for the entire transfer member.
  • the object of the invention is to remedy the drawbacks mentioned above by designing a more efficient device.
  • a device for transferring and heat treatment of divided solids of the aforementioned type in which at least the helical part of the organ of transfer is formed in its mass of a material electrically conductive, and the transfer device includes means for connection to a power source in electrical energy to constitute itself the heating medium, in accordance with the characterizing part of claim 1.
  • the heating means consists of the transfer organ in contact with which the divided solids are mostly brought during their transfer.
  • the all or almost all of the divided solids will therefore heat directly in contact with the heating medium, and without parking against the heating surface.
  • the heating of the divided solids is thus achieved so uniform and the browning problems are practically deleted.
  • the structure of the device is simple, so that its manufacturing cost remains low.
  • the part helical transfer member includes a flat ribbon wound in a helix.
  • the part helical is formed by a helix winding around a tree, the tree then being made of insulating material or formed less on its outer surface of an electrically material driver.
  • the electrically conductive material is a metal such as stainless steel.
  • the tubular envelope is made of electrically insulating material. Thanks to this measure the risk of short circuits entered the organ transfer and the tubular casing are eliminated, same as the risk of electric shock to people by contact with the tubular casing. Device security is thus reinforced.
  • the tubular envelope is covered at least partially of an internal lining of friction of insulating material to form a support for the helical part.
  • the friction lining supports the helical part so as to prevent the helical part flexes during product transfer.
  • the friction lining electrically insulates the helical part of the tubular casing, which can then be made of a conductive material. The risks of short circuits are then limited.
  • the device comprises a coupling seal made of electrically insulating material connecting the transfer member to the output shaft of the engine.
  • the motor is thus isolated from the organ of transfer. The security of the device is thus still improved.
  • the transfer and heat treatment according to the invention comprises a tubular casing 1, open at the top, comprising, at its respective ends, a conduit inlet and outlet duct for the product to be transferred (not shown here).
  • the tubular casing 1 is here made of an electrically insulating material such as plastic material.
  • the envelope tubular 1 arranged with an open sky, the envelope tubular 1 could also be arranged in the form of a complete cylinder (closed sky).
  • a transfer body generally designated in 2 is mounted in the tubular casing 1 to turn around of its longitudinal axis 3.
  • the transfer member 2 has a form part helical 4 formed by a flat ribbon, here of section rectangular, wrapped around a tree 5 and held spaced from it by 6 spacers distributed along of the tree 5.
  • the helical part 4 is made in its mass in a material electrically conductive, for example stainless steel.
  • the shaft 5 is here made of insulating material and is mounted to pivot in the tubular casing 1 by through two end portions 7 and 8 made of electrically conductive material and received in bearings not visible in Figures 1 and 2.
  • the helical part 4 is electrically connected to the portions ends 7 and 8 by plates 9 of conductive material integral with the end portions 7 and 8.
  • the end portion 7 is associated with a drum 10 of electrically conductive material on which rub coals 11 of electric current supply connected by conductive wires to a power source in electrical energy (not shown)
  • the portion end 8 is itself associated with a drum, not shown, made of electrically conductive material on which rub rubbing evacuation coals Electric power.
  • the shaft 5 is made of material electrically conductive but be isolated from the portions ends 7 and 8 and the helical part 4.
  • the power source will be sized in particular according to the dimensional characteristics and electrical resistance of the transfer member.
  • the voltage delivered, continuously or in alternative will be less than 100 volts for reasons of security.
  • Means of connection to the power source could be, instead of coals, conductive rings, or conductive brushes rubbing on the outer surface of the drums, or even a swivel connection fitting mounted on one end of the transfer member 2.
  • the drum 10 is connected to a drive motor in rotation 12 by means of a coupling joint 13.
  • the coupling joint 13 is preferably made of insulating material.
  • the coupling seal 13 can thus ensure, in addition to an insulation function of the motor of the transfer member, a catch-up function misalignments between the output shaft and the end of the transfer member and / or a function elastic damping.
  • drum 10 and the coupling assembly the engine is housed in a compartment isolated from the tubular casing 1. Safety of the device is thus optimal.
  • the transfer member 2 is driven in rotation by the motor 12.
  • An electric current, brought from the power source via coals 11, drum 10, end portion 7 and plate 9, is led to the helical part 4 of the transfer member 2 which it traverses, causing thus its heating by Joule effect.
  • the divided solids to be treated are introduced in the tubular casing 1 by the inlet duct (here on the motor side) and are driven by the helical part 4 to the outlet pipe (at the opposite end). Simultaneously, the divided solids are heated during along their transfer in direct contact with the surface external of the helical part 4. Due to the rotation of the helical part 4 and of the induced movements of the divided solids, divided solids will mostly be brought into contact with the helical part heated for their transfer. The heating of the divided solids is thus very efficient and uniform for all or almost all divided solids.
  • the device according to the second embodiment is identical to the device of the first mode of previously described embodiment, except for the helical part 4 which is here self-supporting (none support shaft is not provided).
  • the structure of the organ of transfer is then particularly simple and is more particularly suitable for transfers on reduced distances.
  • the filling of friction 14 will be placed opposite the middle part of the helical part which is the area of the part helical with the largest arrow in case sagging.
  • the friction lining 14 is advantageously made of an insulating material such as polytetrafluoroethylene, which allows on the one hand to isolate electrically the helical part 4 of the envelope tubular 1 which can then be made of a material conductor, and secondly to have a trim of friction having a low coefficient of friction.
  • the material used may also be ceramic or mica.
  • the flat ribbon forming the helical part 4 will have a rounded section, without sharp edges, like a oval section.
  • the transfer member 2 of the device comprises a tubular shaft 5 having the longitudinal axis 3.
  • a propeller 4 of the Archimedes screw type wraps around the tubular shaft 5.
  • tubular shaft 5 and the propeller 4 are in this case made of a single piece of material electrically conductive, here stainless steel. Propeller 4 can also be reported on tree 5.
  • the transfer member 2 is intended, as previously, to be mounted rotating in an envelope tubular, preferably of material electrically insulator, by means of bearings receiving the ends of the tubular shaft 5, and to be connected by collecting means, such as drums on which rub coals associated with a food source electric.
  • the cross section of the tubular shaft 5 is determined to be less than that of the cross section, in this case rectangular, of the propeller 4 so that the current brought to one end of the shaft 5 preferably passes throughout the mass propeller 4. Any other way to increase the resistance of the shaft compared to that of the propeller can of course be used.
  • FIG. 6 we may use two transfer members 2 arranged side by side side by side in a common tubular envelope 1 delimiting troughs. It is thus possible to increase considerably the exchange surfaces for the same length of transfer.
  • the transfer members 2 are here spaced one on the other but could alternatively be nested.
  • the trees 5 are shown here full but may well heard to be tubular.
  • the transfer members 2 are electrically connected to each other so that the electric current flows along these two organs.
  • a friction pad may be provided in all embodiments described above, this lining extending over all or part of the tubular casing.

Landscapes

  • Screw Conveyors (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Processing Of Solid Wastes (AREA)
  • Resistance Heating (AREA)
  • Fish Paste Products (AREA)
  • Drying Of Solid Materials (AREA)
  • General Induction Heating (AREA)
  • Seal Device For Vehicle (AREA)
  • Tunnel Furnaces (AREA)
  • Forging (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP99901663A 1998-01-30 1999-01-29 Vis transporteuse chauffante Expired - Lifetime EP1051880B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9801046A FR2774545B1 (fr) 1998-01-30 1998-01-30 Dispositif de transfert et de traitement thermique de solides divises
FR9801046 1998-01-30
PCT/FR1999/000188 WO1999039549A1 (fr) 1998-01-30 1999-01-29 Vis transporteuse chauffante

Publications (2)

Publication Number Publication Date
EP1051880A1 EP1051880A1 (fr) 2000-11-15
EP1051880B1 true EP1051880B1 (fr) 2003-07-02

Family

ID=9522376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99901663A Expired - Lifetime EP1051880B1 (fr) 1998-01-30 1999-01-29 Vis transporteuse chauffante

Country Status (11)

Country Link
US (1) US6375345B1 (es)
EP (1) EP1051880B1 (es)
JP (1) JP3455518B2 (es)
CN (1) CN1144504C (es)
AT (1) ATE244497T1 (es)
AU (1) AU2169099A (es)
CA (1) CA2319031C (es)
DE (1) DE69909245T2 (es)
ES (1) ES2203064T3 (es)
FR (1) FR2774545B1 (es)
WO (1) WO1999039549A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237230A1 (en) 2022-06-08 2023-12-14 Knauf Gips Kg Extruder for producing gypsum moulded articles, process for manufacturing gypsum-based articles and gypsum-based articles

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840676B1 (fr) 2002-06-05 2005-01-28 E T I A Evaluation Technologiq Procede de traitement thermique en continu de solides divises, et dispositif de mise en oeuvre dudit procede
FR2888724B1 (fr) * 2005-07-20 2007-09-28 Panzani Soc Par Actions Simpli Procede de traitement de graines cereales entieres decortiquees, et dispositif de mise en oeuvre dudit procede
FR2892888B1 (fr) * 2005-10-27 2008-01-04 E T I A Evaluation Technologiq Dispositif de traitement de solides divises
FR2945294B1 (fr) 2009-05-07 2012-04-20 Olivier Lepez Procede et installation de densification energetique d'un produit sous forme de solides divises, en vue de l'obtention d'huiles pyrolytiques a vocation energetique
FR2955029B1 (fr) 2010-01-08 2012-03-30 E T I A Evaluation Technologique Ingenierie Et Applic Procede de traitement de produits sous forme de solides divises en vue de leur debacterisation thermique, et installation de mise en oeuvre dudit procede
WO2012126096A1 (en) 2011-03-23 2012-09-27 Institut De Rechercheet De Développement En Agroenvironnement Inc. (Irda) System and process for thermochemical treatment of matter containing organic compounds
CN102424251A (zh) * 2011-08-17 2012-04-25 无锡市彩云机械设备有限公司 一种空心绞龙叶片
FR2995986A1 (fr) * 2012-09-21 2014-03-28 E T I A Evaluation Technologique Ingenierie Et Applic Dispositif de traitement thermique d'un produit
JP6307789B2 (ja) 2013-01-07 2018-04-11 東レ株式会社 糖液の製造装置及び糖液の製造方法
JP5547320B1 (ja) * 2013-03-19 2014-07-09 第一施設工業株式会社 搬送装置
FR3020353B1 (fr) * 2014-04-24 2016-05-27 E T I A - Evaluation Tech Ingenierie Et Applications Dispositif de traitement thermique a vis comprenant une bande electriquement isolante
RU2561620C1 (ru) * 2014-06-10 2015-08-27 Евгений Сергеевич Ляховский Трубчатый электронагреватель
CN104129608A (zh) * 2014-07-15 2014-11-05 湖州大周高分子材料有限公司 粉料传输加热装置及传输加热方法
FR3037130B1 (fr) * 2015-06-05 2017-06-16 Lepez Conseils Finance Innovations Lcfi Four de craquage
JP6834960B2 (ja) * 2015-08-26 2021-02-24 株式会社サタケ 過熱蒸気殺菌装置
WO2017131517A1 (en) 2016-01-28 2017-08-03 Next Renewable Group B.V. Production method of gaseous fuel, starting material and greenhouse
JP7021234B2 (ja) * 2016-10-18 2022-02-16 ウ．テ．イ．ア．－エバリュアシオン テクノロジク，アンジェニリ エ アプリカシオン 二水素の製造装置、そのような装置を用いた二水素の製造方法及びそのような装置の利用法
GB201803905D0 (en) * 2018-03-12 2018-04-25 British American Tobacco Investments Ltd Methods for treating tobacco, material, apparatus for treating tobacco material, treated tobacco material and uses thereof
FR3081977A1 (fr) * 2018-05-31 2019-12-06 E.T.I.A. - Evaluation Technologique, Ingenierie Et Applications Dispositif de traitement thermique a revetement rapporte, revetement et procede correspondants
FR3081978B1 (fr) * 2018-06-01 2022-01-07 E T I A Evaluation Tech Ingenierie Et Applications Dispositif de traitement thermique a enveloppe refractaire
GB201811370D0 (en) * 2018-07-11 2018-08-29 British American Tobacco Investments Ltd Methods of treating cut stem tobacco material
CN109250404A (zh) * 2018-10-29 2019-01-22 天津大学 一种安装在余热锅炉下方的耐高温螺旋输送机
FR3101699B1 (fr) * 2019-10-08 2021-09-10 E T I A Evaluation Tech Ingenierie Et Applications Dispositif de traitement thermique d’un produit comprenant au moins un élément chauffant et procédé correspondant
DE102020121017A1 (de) 2020-08-10 2022-02-10 Techni Grau Solutions Ltd. Wärmebehandlungsverfahren zur Wärmebehandlung von festen Lebens- oder Futtermitteln und Wärmebehandlungsvorrichtung zur Durchführung des Verfahrens
CN117139344B (zh) * 2023-09-12 2024-04-09 四川云华川科技有限公司 一种生活垃圾连续化多层热解反应釜

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237230A1 (en) 2022-06-08 2023-12-14 Knauf Gips Kg Extruder for producing gypsum moulded articles, process for manufacturing gypsum-based articles and gypsum-based articles

Also Published As

Publication number Publication date
CN1289524A (zh) 2001-03-28
ES2203064T3 (es) 2004-04-01
FR2774545A1 (fr) 1999-08-06
WO1999039549A1 (fr) 1999-08-05
JP2002501868A (ja) 2002-01-22
DE69909245D1 (de) 2003-08-07
ATE244497T1 (de) 2003-07-15
CN1144504C (zh) 2004-03-31
US6375345B1 (en) 2002-04-23
DE69909245T2 (de) 2004-04-15
CA2319031C (fr) 2007-06-12
CA2319031A1 (fr) 1999-08-05
EP1051880A1 (fr) 2000-11-15
AU2169099A (en) 1999-08-16
JP3455518B2 (ja) 2003-10-14
FR2774545B1 (fr) 2003-05-30

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