EP3803243B1 - Dispositif de traitement thermique a enveloppe refractaire et son utilisation - Google Patents

Dispositif de traitement thermique a enveloppe refractaire et son utilisation Download PDF

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Publication number
EP3803243B1
EP3803243B1 EP19714696.2A EP19714696A EP3803243B1 EP 3803243 B1 EP3803243 B1 EP 3803243B1 EP 19714696 A EP19714696 A EP 19714696A EP 3803243 B1 EP3803243 B1 EP 3803243B1
Authority
EP
European Patent Office
Prior art keywords
screw
envelope
enclosure
casing
shaped
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.)
Active
Application number
EP19714696.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3803243A1 (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
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 ETIA Evaluation Technologique Ingenierie et Applications SARL filed Critical ETIA Evaluation Technologique Ingenierie et Applications SARL
Priority to SI201930445T priority Critical patent/SI3803243T1/sl
Priority to HRP20230064TT priority patent/HRP20230064T1/hr
Priority to RS20230038A priority patent/RS63917B1/sr
Publication of EP3803243A1 publication Critical patent/EP3803243A1/fr
Application granted granted Critical
Publication of EP3803243B1 publication Critical patent/EP3803243B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
    • F27B9/063—Resistor heating, e.g. with resistors also emitting IR rays
    • F27B9/065—Resistor heating, e.g. with resistors also emitting IR rays the resistance being transported by the conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • 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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/08—Screw feeders; Screw dischargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B2009/2484—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being a helical device
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
    • F27D2001/047—Lining of cylindrical vessels

Definitions

  • the present invention relates to a heat treatment device.
  • the present invention also relates to the use of such a device for heat treating a product at a temperature above 800 degrees.
  • the heat treatment devices commonly used in industry generally comprise a transfer member and a heating means performing the heat treatment.
  • a heat treatment device comprising an enclosure and means for conveying the product between the inlet of the enclosure and the outlet of the enclosure which comprise a screw mounted to rotate in the enclosure along a geometric axis of rotation and means for driving the screw in rotation.
  • the device further comprises means for heating the screw by the Joule effect.
  • the product to be treated is usually introduced at the inlet of the enclosure in the form of divided solids.
  • the screw continuously pushes the product towards the outlet of the enclosure. Due to the temperature of the screw, the product is heated as it progresses, which allows its heat treatment.
  • the present applicant has thus proposed in its patent EP 2 218 300 to have an enclosure having internal walls made of refractory material, the screw constituting a means of heating the internal walls so that said internal walls themselves constitute means for heating by radiation the divided solids which progress in the enclosure.
  • the object of the present invention is to design a heat treatment device better suited to treatments at very high temperatures.
  • the present invention also aims to propose a use of such a device.
  • the enclosure comprises a casing of refractory material through which the screw extends, said casing being shaped like a tube, an internal surface of which follows the contours of the screw.
  • the casing conforms to the contours of the screw.
  • a space is limited between the screw and the casing, which makes it possible to increase the heat exchanges within the casing in which the product circulates.
  • the invention therefore allows a very significant rise in temperature of the product.
  • the invention it is therefore possible to work at high temperatures and even at very high temperatures.
  • the inventors were thus able to observe that it was possible to work at temperatures above 800 degrees Celsius, and even above 1000 degrees Celsius and preferably still at temperatures above 1300 degrees Celsius, 1500 degrees Celsius and even 1800 degrees Celsius (such a temperature corresponding to the maximum temperature recorded in the enclosure; generally such a temperature is found at the level of the turn and the envelope towards the outlet of the enclosure).
  • the invention can also be used for heat treatments at lower temperatures (and therefore at temperatures below 800 degrees Celsius) if desired.
  • the casing is made of refractory ceramic.
  • the envelope is shaped as a hollow cylinder.
  • An internal radius of the envelope is greater than the external radius of the screw by a value between 1 and 20 millimeters.
  • the internal radius of the casing is greater than the external radius of the screw by a value between 5 and 15 millimeters.
  • the envelope is formed from a succession of sections.
  • the different sections are shaped to be fitted into each other.
  • the enclosure includes an outer casing which encloses the casing and is shaped at least internally to the shape of the casing.
  • the present invention also relates to a use of such a device for thermally treating a product at a temperature above 800 degrees.
  • the device 1 is here applicable to the gasification of waste, for example plants, or else still polymeric, in order to produce a gas such as for example a methane gas or else dihydrogen.
  • a gas such as for example a methane gas or else dihydrogen.
  • this application is not limiting and the device 1 can be used for many other applications.
  • the divided solids can be in the form of powders, granules, pieces, fibers, sheets... and be of vegetable, mineral, chemical nature...
  • the enclosure 2 here comprises an inlet 4 arranged in the cover of the enclosure 2 substantially at the level of a first longitudinal end of the enclosure 2.
  • the device comprises an inlet chimney 5 which is connected in a sealed manner to input 4 of the enclosure.
  • the inlet chimney 5 is for example connected to a device for grinding, compacting, extruding, melting or granulating the product considered in divided solids or else to a device for pre-conditioning the product considered in the form of solids. divided.
  • a pre-conditioning device makes it possible, for example, to heat and dry said product to prescribed values of temperature and relative humidity or even to densify the product or even to humidify the product or even to extract the interstitial air therefrom. by partial or total fusion.
  • the casing 12 typically comprises between 3 and 7 sections.
  • the different sections 13 are shaped so that they can be fitted together one after the other.
  • the case 16 is therefore shaped as a tube extending longitudinally and through which the casing 12 is arranged, two side walls closing the tube. Said side walls are those through which the shaft sections 11a, 11b carrying the screw 10 extend.
  • the case 16 thus circumferentially surrounds the envelope 12.
  • the case 16 naturally surrounds the envelope 12 at 360 degrees.
  • the case 16 is thus concentric with the envelope 12.
  • the cross section of the case 16 follows the contours of the envelope 12.
  • the cross section of the case 16 is thus shaped like a ring, the inner circle of which surrounds the envelope 12.
  • Case 16 is here in one piece.
  • the case 16 has the shape of a hollow cylinder.
  • the enclosure 2 comprises an intermediate cover 17 of thermally insulating material extending between the casing 12 and the case 16.
  • the cover 17 is for example made of rock wool.
  • Cover 17 is here arranged so that the outer surface of the envelope 12 is in contact with the inner surface of the cover 17 and that the inner surface of the case 16 is in contact with the outer surface of the cover 17.
  • cover 17 is also shaped to the shape of the enclosure 2 and the envelope 12.
  • Cover 17 thus surrounds envelope 12 circumferentially. Cover 17 naturally surrounds envelope 12 at 360 degrees.
  • the cross section of the cover 17 follows the contours of the case 16 and the envelope 12.
  • the cross section of the cover 17 is thus shaped like a ring, the inner circle of which surrounds the envelope 12 and the outer circle of which is surrounded by case 16.
  • Cover 17 is in the shape of a hollow cylinder.
  • Cover 17 is here in one piece.
  • the enclosure 2 Due to its general tubular shape with layers (case, cover, envelope, screw) very close, even in contact for the case 16 and the cover 17 of a hand and the cover 17 and the envelope 12 on the other hand, the enclosure 2 turns out to be of small dimensions.
  • only the casing can be shaped to the shape of the screw.
  • the case of the speaker may thus have another shape. It is also possible to have a case of which only the internal surface follows the shape of the envelope, the external surface being however different. The case and the cover and/or the cover and the envelope may not be in contact over the entire length of the case, the cover and/or the envelope.
  • the cover may not be in one piece but composed of several elements fixed together and/or fixed to the envelope and/or fixed to the case. We can get rid of a blanket.
  • the case may also not be in one piece.
  • the envelope may be in one piece. Only the inner surface of the casing can be shaped to the shape of the screw, the outer surface having another shape.
  • the casing may thus be a tube, or an elongated and hollow member, the outer contour of which is not cylindrical.
  • the casing and the screw may be concentric even if the internal radius of the casing is greater than that of the screw, the screw then not resting at the bottom of the casing.
  • the product is introduced in the form of divided solids into the enclosure, the product may be introduced in another form, for example liquid or gaseous.
  • one or more products can be recovered at the outlet in the form of gas, liquid, oil, solid, etc. The number of entries and exits from the enclosure will vary accordingly.
  • the treatment device can be mounted downstream of a conventional pyrolysis installation so as to treat the tank emerging from this pyrolysis in order to subject it to post-treatment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Tunnel Furnaces (AREA)
  • Screw Conveyors (AREA)
  • Furnace Details (AREA)
  • Thermal Insulation (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Resistance Heating (AREA)
EP19714696.2A 2018-06-01 2019-04-08 Dispositif de traitement thermique a enveloppe refractaire et son utilisation Active EP3803243B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201930445T SI3803243T1 (sl) 2018-06-01 2019-04-08 Naprava za toplotno obdelavo z ognjevzdržnim ovojem in njena uporaba
HRP20230064TT HRP20230064T1 (hr) 2018-06-01 2019-04-08 Uređaj za toplinsku obradu koji sadrži vatrostalni omotač i upotreba takvog uređaja
RS20230038A RS63917B1 (sr) 2018-06-01 2019-04-08 Uređaj za termičku obradu sa vatrostalnom oblogom i upotreba takvog uređaja

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1854773A FR3081978B1 (fr) 2018-06-01 2018-06-01 Dispositif de traitement thermique a enveloppe refractaire
PCT/EP2019/058815 WO2019228696A1 (fr) 2018-06-01 2019-04-08 Dispositif de traitement thermique a enveloppe refractaire

Publications (2)

Publication Number Publication Date
EP3803243A1 EP3803243A1 (fr) 2021-04-14
EP3803243B1 true EP3803243B1 (fr) 2022-12-07

Family

ID=63209533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19714696.2A Active EP3803243B1 (fr) 2018-06-01 2019-04-08 Dispositif de traitement thermique a enveloppe refractaire et son utilisation

Country Status (18)

Country Link
US (1) US11920866B2 (es)
EP (1) EP3803243B1 (es)
JP (2) JP2021525171A (es)
CN (1) CN112204330A (es)
BR (1) BR112020022877B1 (es)
CA (1) CA3098473C (es)
DK (1) DK3803243T3 (es)
ES (1) ES2938386T3 (es)
FI (1) FI3803243T3 (es)
FR (1) FR3081978B1 (es)
HR (1) HRP20230064T1 (es)
HU (1) HUE061216T2 (es)
LT (1) LT3803243T (es)
PL (1) PL3803243T3 (es)
PT (1) PT3803243T (es)
RS (1) RS63917B1 (es)
SI (1) SI3803243T1 (es)
WO (1) WO2019228696A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4011850A1 (en) 2020-12-09 2022-06-15 Holcim Technology Ltd Method of producing clinker form cement raw meal
EP4015479A1 (en) 2020-12-18 2022-06-22 Holcim Technology Ltd Method of calcining a raw material to obtain a cementitious material
KR102552067B1 (ko) * 2021-08-10 2023-07-05 서울시립대학교 산학협력단 신형 반응기
WO2024105534A1 (en) 2022-11-14 2024-05-23 Holcim Technology Ltd Method of calcining a raw material to obtain a cementitious material

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452249A (en) * 1946-03-04 1948-10-26 Roy R Leiske Drier for granular plastic
JPS5749695U (es) * 1980-09-04 1982-03-20
FR2511263A1 (fr) * 1981-08-12 1983-02-18 Commissariat Energie Atomique Procede et dispositif pour le depoussierage d'un flux gazeux et application de ce dispositif au depoussierage des gaz dans un four pour le sechage ou la calcination d'une poudre
US4993943A (en) * 1990-03-02 1991-02-19 Norris David P Apparatus and method for the removal of higher and lower volatility organic contaminants from soil
CA2057767A1 (fr) * 1991-12-17 1993-06-18 My Dung Handfield Reacteur a agitateur chauffant pour le traitement thermique de materiaux granules, pulverulents ou pateux
FR2727744A1 (fr) * 1994-12-02 1996-06-07 Donze Michel Bruleur a materiau combustible solide et installation comprenant un tel bruleur
US5869810A (en) * 1995-05-23 1999-02-09 Victor Reynolds Impedance-heated furnace
FR2774545B1 (fr) * 1998-01-30 2003-05-30 Etia Evaluation Technologique Dispositif de transfert et de traitement thermique de solides divises
FR2881820B1 (fr) * 2005-02-10 2008-05-30 Saint Gobain Vetrotex Dispositif pour l'extraction de chaleur a partir de gaz et pour la recuperation des condensats
US20080136066A1 (en) * 2006-11-15 2008-06-12 Xaloy, Incorporated Apparatus and method for inductive heating a workpiece using an interposed thermal insulating layer
FR2924300B1 (fr) 2007-11-23 2009-12-04 E T I A Evaluation Technologiq Dispositif de traitement thermique de solides divises.
JP6055235B2 (ja) * 2012-08-13 2016-12-27 光洋サーモシステム株式会社 粉体冷却器
FR2995986A1 (fr) * 2012-09-21 2014-03-28 E T I A Evaluation Technologique Ingenierie Et Applic Dispositif de traitement thermique d'un produit
JP6068753B2 (ja) * 2013-12-27 2017-01-25 株式会社ノリタケカンパニーリミテド 加熱炉用搬送部材
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
FR3037130B1 (fr) * 2015-06-05 2017-06-16 Lepez Conseils Finance Innovations Lcfi Four de craquage
DE102016203584A1 (de) * 2016-03-04 2017-09-07 Xerion Advanced Heating Ofentechnik Gmbh Rohrofen mit segmentiertem Arbeitsrohr
US20210332452A1 (en) * 2020-04-24 2021-10-28 Consolidated Engineering Company, Inc. Systems and methods for processing metallic articles with a retort furnace

Also Published As

Publication number Publication date
CN112204330A (zh) 2021-01-08
BR112020022877B1 (pt) 2023-11-21
SI3803243T1 (sl) 2023-03-31
US20210231374A1 (en) 2021-07-29
PT3803243T (pt) 2023-01-27
FR3081978B1 (fr) 2022-01-07
BR112020022877A2 (pt) 2021-02-23
JP2024031994A (ja) 2024-03-07
FR3081978A1 (fr) 2019-12-06
ES2938386T3 (es) 2023-04-10
JP2021525171A (ja) 2021-09-24
FI3803243T3 (fi) 2023-03-21
WO2019228696A1 (fr) 2019-12-05
HRP20230064T1 (hr) 2023-03-17
CA3098473C (fr) 2023-01-10
PL3803243T3 (pl) 2023-04-03
CA3098473A1 (fr) 2019-12-05
HUE061216T2 (hu) 2023-05-28
RS63917B1 (sr) 2023-02-28
US11920866B2 (en) 2024-03-05
LT3803243T (lt) 2023-02-10
EP3803243A1 (fr) 2021-04-14
DK3803243T3 (da) 2023-02-20

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