US20080118881A1 - Furnace for Continuous Gas Curing, Especially of Rubber Products - Google Patents

Furnace for Continuous Gas Curing, Especially of Rubber Products Download PDF

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Publication number
US20080118881A1
US20080118881A1 US11/795,261 US79526106A US2008118881A1 US 20080118881 A1 US20080118881 A1 US 20080118881A1 US 79526106 A US79526106 A US 79526106A US 2008118881 A1 US2008118881 A1 US 2008118881A1
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Prior art keywords
curing
furnace
hot air
turbine
furnace according
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Abandoned
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US11/795,261
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English (en)
Inventor
Dominique Paumelle
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PAUMELLE Ets
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PAUMELLE Ets
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Assigned to ETABLISSEMENTS PAUMELLE reassignment ETABLISSEMENTS PAUMELLE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PAUMELLE, DOMINIQUE
Publication of US20080118881A1 publication Critical patent/US20080118881A1/en
Abandoned legal-status Critical Current

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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
    • F27B9/10—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 heated by hot air or gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0277—Apparatus with continuous transport of the material to be cured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention concerns curing furnaces and relates, in particular, to furnaces for curing rubber products.
  • This furnace for the curing of rubber products comprises means for the gas heating of a curing area through which the product to be treated passes.
  • the furnace is formed by juxtaposed modules integrated in a production line and each comprising a suitably insulated housing, a heat exchanger with a gas burner and means for propelling and directing air heated by the heat exchanger toward an area for curing the product, the gas combustion circuit of the heat exchanger being separate from the circuit of hot air passing through the curing area.
  • the means for directing hot air toward the curing area comprise paths for directing hot air on both sides of the curing area and a path for evacuating air through the middle of the curing area.
  • the object of the invention is to propose a modification to the above-described curing furnace which, while preserving its optimum characteristics from the point of view of the curing of the products to be treated, also allows it to treat the polluting emissions under excellent technical and economic conditions.
  • the invention accordingly relates to a furnace for continuous gas curing, especially of rubber products, comprising means for heating a curing area through which the product to be treated passes, formed by a module or a plurality of juxtaposed modules, integrated within a production line and each comprising a suitably insulated housing, a heat exchanger with a gas burner and means for propelling and directing the heated air through the heat exchanger toward an area for curing the product, the gas combustion circuit of the heat exchanger being separate from the circuit of hot air flowing through the curing area, the means for directing the hot air also being distributed and set apart by grids along the curing area comprising paths for directing hot air on both sides of the curing area and a path for evacuating the air via the middle of the curing area, characterised in that it also comprises:
  • Said means for pyrolysing the gaseous effluents resulting from the product may comprise means for adjusting said fraction of the gases that is treated by pyrolysis.
  • each furnace module may be an exchanger with a hairpin tube which is internally heated using a corresponding gas burner
  • the means for propelling and directing hot air toward the curing area of each module may comprise at least one ventilation turbine arranged in proximity to the bottom of the housing of the module facing paths for directing hot air which are delimited by metal sheets for deflecting hot air to direct it either side of the curing area, and grids for distributing hot air along the curing area
  • said means for pyrolysing said gaseous effluents may comprise a casing which is open at its two ends surrounding said hairpin tube and is positioned in the vicinity of said turbine, separated from said tube by a gap and terminated facing said turbine.
  • Said casing may be provided with means for varying its distance from the turbine.
  • Said casing may be provided with means for varying its length.
  • Said catalytic bed may be based on one or more precious metals deposited on an inorganic support.
  • the invention consists in interposing on the path itself of the gases travelling in the furnace of the type described hereinbefore:
  • means for pyrolysing the gaseous effluents which are capable of being treated in this way, said pyrolysis using as a heat source the heat exchanger of the furnace itself;
  • At least one catalytic bed capable of catalysing the gaseous effluents which can be treated in this way and were produced by the vulcanisation or pyrolysis referred to hereinbefore.
  • the gaseous effluents are treated by pyrolysis as a result of the fact that the heat exchanger is a hairpin exchanger and that, in proximity to the ventilator causing the gases to travel in the furnace, a branch of the hairpin is surrounded by a casing which is open at its two ends and assists the passage of a portion of the gas travelling in immediate proximity to the exchanger.
  • the pyrolysis is thus carried out using extremely simple means which may easily be adapted to an existing furnace.
  • FIG. 1 is a schematic diagram of an example of a gas furnace to which the invention may be adapted;
  • FIG. 2 is a partially exploded perspective view of the furnace from FIG. 1 ;
  • FIG. 3 is a perspective view of a portion of a hairpin heat exchanger for the furnace from FIGS. 1 and 2 , equipped with means according to the invention pyrolysing the travelling gases;
  • FIG. 4 is a cross-section along the plane 4 - 4 from FIG. 2 .
  • the furnace shown schematically in FIG. 1 comprises a plurality of furnace modules 1 , 2 , 3 , 4 , the number of which is dependent on the speed of travel of the product to be cured, the speed of travel being determined by the speed of the upstream production line and the residence time required for the product to cure.
  • the modules 1 , 2 , 3 , 4 are joined together by means for assembling the housings thereof, appropriate heat seals 64 , 65 , 66 being interposed.
  • each module 1 to 4 Associated with each module 1 to 4 is a gas burner 5 , 6 , 7 , 8 which is supplied with gas via a supply conduit 9 , 10 , 11 , 12 and internally heats a stainless steel heat exchanger 13 , 14 , 15 , 16 formed by a hairpin tube.
  • Each burner produces, from a mixture of air and gas, a flame which extends inside the tube and then conveys the combustion products without any contact with the exterior of the tube.
  • the combustion products are drawn in by an extraction ventilator at the output of the tube.
  • the heat exchangers are symmetrically inverted in the region of the junctions between the modules, thus allowing assembly of the gas supply conduits 9 and 10 and the conduits 17 , 18 , 19 and 20 for extraction of burnt gases, the extraction conduits being connected to evacuation chimneys 22 , 23 rising above the roof.
  • each module comprises a housing 24 , 25 , 26 in which the corresponding exchanger 13 , 14 , 15 is mounted.
  • Each housing comprises, like the housing 25 shown in greater detail in FIG. 2 , a lateral access door 27 which is intended for furnace maintenance and extends, in the region of the exchangers 13 , 14 , 15 , 16 , over the entire length of the module.
  • Each module also comprises an upper door 28 for accessing a curing tunnel in which there is arranged a roller conveyor 29 carried by two rails 30 and arranged above the region of the heat exchanger 15 .
  • Opening the doors 28 allows complete access over the entire length of the furnace, facilitating maintenance of the curing area (cleaning or replacing a mat or rollers of the conveyor) and guiding of the product to be cured during start-up of a production operation.
  • a ventilation turbine 32 which is driven in rotation by an electric motor 33 equipped with a cooling turbine 34 intended to dissipate the heat transmitted by the transmission shaft connecting the ventilation turbine and the electric motor and having one end inside the furnace and one end outside the furnace.
  • the ventilation turbine 32 which is advantageously made of stainless steel, is arranged in the lower portion of the wall of the housing 26 that is remote from the door 27 .
  • the number and the position of the ventilation turbines 32 may vary as required and in accordance with the overall design of the furnace. There may be one or more turbines per module 1 , 2 , 3 , 4 .
  • metal deflection sheets 35 , 36 , 37 made for example of stainless steel, which define paths 38 , 39 of heating air indicated by corresponding arrows, said paths 38 , 39 ending either side of the roller conveyor 29 in order uniformly to heat the product conveyed by the conveyor and to provide a return path 40 toward the bottom of the housing.
  • the heating air paths 38 , 39 open onto lateral grids 41 , 42 arranged either side of the rollers 29 , whereas the return path 40 is defined by a series of air inlets 44 located below the rollers 29 .
  • the air inlets 44 pass through the path 39 and end at the base of the housing between the metal deflection sheets 36 and 37 . Owing to the advancement of the hot air brought about by the turbines 32 , there is thus obtained a helical configuration of the path of the air within the furnace. As it advances, this air becomes filled with a broad range of gases resulting from the curing of the product. These are gases to be treated within the scope of the invention.
  • the furnace may be equipped on one of its lateral walls with an orifice 54 opening into a conduit 55 for evacuating the curing gases travelling therein.
  • This orifice 54 and the corresponding evacuation conduit 55 are highly preferably arranged in the central position relative to the furnace as a whole. If the furnace comprises an odd number of modules, the orifice 54 and the conduit 55 are formed in the middle of the central module. If the furnace comprises an even number of modules (as shown in the figures), the orifice 54 and the conduit 55 are (as shown in FIG. 1 ) formed in the region of the heat seal 65 connecting the two most central modules 2 , 3 .
  • This central arrangement of the evacuation of the gases provides a high degree of symmetry and a high degree of uniformity of the flow of curing area within the furnace, and also satisfactory drawing ensuring an effective exchange of heat, on the one hand, between the air intended for curing and the exchangers and, on the other hand, between the air intended for curing and the product to be cured.
  • the helical configuration of the path of curing air that is provided by the metal deflection sheets 35 , 36 , 37 and the air inlets 44 and the drawing assisted by the turbine or turbines 32 , causing the curing air to follow this helical path, help to obtain this result.
  • the circuit for directing and evacuating the heating air from the product displaced on the roller conveyor 29 is independent of the gas combustion circuit in the burners.
  • the walls and the doors of the housing 25 are in the form of an insulating material formed from ceramic fibres with crosswise layers arranged between an inner coating 31 a in the form of a stainless steel sheet and an outer coating 31 b made of painted steel.
  • the doors such as the lateral door 27 and the upper door 28 for access to the curing tunnel, are equipped, as are the frames thereof, with respective seals 48 , 49 and 50 , 51 in the form of refractory braids.
  • a burning device 53 may optionally be installed on an evacuation conduit 55 .
  • a gas burner 57 is positioned in the evacuation conduit 55 and projects its flame in the direction of flow.
  • a bell 59 then caps the discharge conduit above the burner 57 , thus forming a heating chamber.
  • the burnt gases are then collected around this bell 59 by a chamber 60 , then drawn in through the conduit 61 by an extraction ventilator 58 .
  • a viewing port 62 formed in the chamber 60 allows inspection of the clogging of said chamber with soot or the like.
  • the gas burner 57 has to be capable of bringing the steam to a temperature of approximately 1,200° C.
  • a device for regulating the humidity of the hot air required for curing may be installed to prevent any drying-out of the product to be cured or to modify the surface appearance of the product after curing (brightness, orange peel effect, etc.).
  • an adjustable amount of water will be poured into a tank 63 positioned on the bottom of the furnace. Once this water has evaporated, the amount of water vapour contained in the curing air will return to an adjustable humidity level.
  • the furnace operates as follows.
  • the operator When a product to be heated is placed at the input of the furnace, the operator opens the upper doors 28 for access to the curing tunnel and the front end of a product to be continuously cured is positioned in the curing tunnel. The operator then closes the doors 28 .
  • the furnace Once the furnace has been adjusted in advance as a function of the curing parameters of the product to be treated, it is started up and the product is driven in the roller conveyor 29 at the desired speed which is compatible with the residence time of the product in the furnace.
  • the gas burners 5 , 6 , 7 , 8 heat the air entering the heat exchangers 13 , 14 , 15 , 16 .
  • the flames of the burners spread in the hairpin tubes of the exchanger and the burnt gases are evacuated via the chimneys 22 , 23 ( FIG. 1 ) without any contact with the air for heating the product.
  • a turbine 32 draws in the hot air preceding the heat exchanger 15 via its centre and dispels the air over its entire periphery.
  • a plurality of turbines 32 may be provided instead of just one.
  • the deflector 35 separates the flow of air propelled in two air streams 38 and 39 having identical speeds.
  • the air stream 38 guided by the walls 31 a and 35 then passes through the lateral grids 41 in order to spread its heat uniformly and moderately in the curing area over the entire length of the right-hand side of the furnace.
  • the air stream 39 guided by the walls 35 and 36 then passes through the lateral grids 42 in order to spread its heat uniformly and moderately in the curing area over the entire length of the left-hand side of the furnace.
  • a large number of air inlets 44 located below the conveyor 29 then combine the air streams 38 and 39 into a single return air stream 40 toward the heat exchanger 15 in order to be reheated.
  • the furnace is equipped with a fume burning device
  • a portion of the gas which is caused to move by the turbines is evacuated from the housing of the furnace via the conduit 54 ( FIG. 3 )
  • the fumes are burnt in the vertical conduit 56 by the gas burner 57 and evacuated through the baffle formed by the bell 59 and the chamber 60 toward the chimney 61 at a rate which is dependent on the rotational speed of the ventilator 58 .
  • the above-described furnace also comprises the following elements (not shown in FIGS. 1 and 2 ).
  • the branch 15 a of the hairpin 15 of the heat exchanger that is closest to the turbine 32 is surrounded by a casing 67 which terminates facing the turbine 32 .
  • this casing 67 (which in the illustrated example extends either side of the turbine 32 and terminates facing said turbine 32 ) is to allow a fraction of the gases travelling in the furnace to be drawn into the gap 68 , which may have a width of for example from about 5 to 50 mm, separating the casing 67 and the branch 15 a of the hairpin 15 .
  • the arrows 69 , 70 , 71 , 72 , 73 in FIGS. 3 and 4 indicate this travel.
  • said fraction of the travelling gases filled with curing vapour passes closest to the exchanger 15 and is subjected, in a confined space, to the intense heat radiation released by the exchanger, especially as the branch 15 a which is closest to the turbine 32 is (in the construction of the furnace provided by way of example) the branch closest to the burner 7 and therefore the hottest branch.
  • the turbine 32 creates a reduction in pressure in the area which faces it and in which the casing 67 terminates, there is therefore generated a natural draught between the branch 15 a of the exchanger 15 and the casing 67 , allowing a significant fraction of the gas flow travelling in the relevant portion of the furnace to pass through the gap 68 .
  • the amount of this fraction may be adjusted if appropriate, by varying the rotational speed of the turbine 32 and/or the distances between the turbine 32 and the ends of the two portions of the casing 67 if displacement of these portions is controllable and/or of the length of the casing 67 if this is variable during use of the furnace (for example, by making the casing telescopic and by associating therewith appropriate control means).
  • the remainder of the gas flow travels in the furnace and passes above and below the casing 67 .
  • the casing is made of a heat-conducting material, it is brought to a temperature similar to that of the exchanger 15 and is also involved in the heating of the gases which lick the casing in the directions indicated by the arrows 74 , 75 in FIG. 4 .
  • the heat conditions prevailing in the gap 68 promote pyrolysis of the vapour released by curing.
  • This pyrolysis requires temperatures of from about 350 to 800° C., more generally from 400 to 700° C. and more specifically from 500 to 600° C., in the case of the vapour resulting from the curing of the rubber.
  • the installation is configured and operatively regulated so that approximately, for example, 20% of the overall gas flow stirred in the corresponding area of the furnace passes through the gap 68 and is subjected to pyrolysis before being rediluted in the main flow.
  • nitrosamines derived from the vulcanisation that have to be destroyed by the pyrolysis.
  • This pyrolysis but also the curing of the products, generates polluting effluents which have to be destroyed before the gases travelling in the furnace are dispelled into the atmosphere.
  • the invention provides for the gases travelling in the furnace also to pass through at least one catalytic bed 76 , 76 ′.
  • This catalytic bed must, in particular, be suitable for treating the CO and nitrogen oxides produced by the vulcanisation of the rubber products and by the above-described pyrolysis.
  • This catalytic bed 76 , 76 ′ may be implanted at any desired location of the path of the gaseous effluents travelling in the furnace, for example with reference to the type of furnace illustrated in the figures:
  • the catalysts of the catalytic bed or beds 76 , 76 ′ are based on one or more precious metals deposited on various inorganic supports, typically caesium, rhodium, platinum, palladium. Platinum and palladium, and preferably palladium, are the preferred examples thereof. Treated or non-treated aluminas, various kieselguhrs, ceramics or any available inorganic chemical forms may be used as the supports.
  • These supported catalysts may be in all the various possible geometrical forms, for example in the form of perforated or non-perforated hollow tubes of all sizes, all diameters and all lengths with perforations of all possible dimensions and all possible shapes.
  • the catalysts are typically in the form of powders and preferably in the form of spherical balls of all diameters and all specific characteristics in terms of porosity, specific surface area, density, wear, and all of the other characteristics of the supported catalysts that enable them to transform by catalysis the vapour emitted during curing the products which the furnace has to treat and during pyrolysis of this vapour.
  • the content of the above-cited precious metals may typically be between 0.01 and 5% by weight, generally between 0.1 and 2% by weight and preferably between 0.3 and 1% by weight.
  • the furnace which has been described and illustrated hereinbefore is merely one possible embodiment of the invention. It will be understood, in particular, that the gaseous effluents could be pyrolysed by means other than the casing 67 surrounding the branch 15 a of the exchanger 15 , especially if use is made of a type of heat exchanger other than a hairpin exchanger.
  • each module 1 , 2 , 3 , 4 of the furnace prefferably be equipped with pyrolysis means and catalysis means even if, strictly speaking, it might be sufficient to provide merely a single module owing to the fact that the gases travel within the furnace.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Incineration Of Waste (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Graft Or Block Polymers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
US11/795,261 2005-01-13 2006-01-09 Furnace for Continuous Gas Curing, Especially of Rubber Products Abandoned US20080118881A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0500371A FR2880678B1 (fr) 2005-01-13 2005-01-13 Four de cuisson a gaz en continu
FR0500371 2005-01-13
PCT/FR2006/000036 WO2006075076A1 (fr) 2005-01-13 2006-01-09 Four de cuisson a gaz en continu notamment de produits en caoutchouc

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Publication Number Publication Date
US20080118881A1 true US20080118881A1 (en) 2008-05-22

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US11/795,261 Abandoned US20080118881A1 (en) 2005-01-13 2006-01-09 Furnace for Continuous Gas Curing, Especially of Rubber Products

Country Status (9)

Country Link
US (1) US20080118881A1 (de)
EP (1) EP1841577B1 (de)
CN (1) CN100579760C (de)
AT (1) ATE413957T1 (de)
CA (1) CA2594520A1 (de)
DE (1) DE602006003626D1 (de)
ES (1) ES2317500T3 (de)
FR (1) FR2880678B1 (de)
WO (1) WO2006075076A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108105786A (zh) * 2017-12-22 2018-06-01 福建省固体废物处置有限公司 一种固体废物处理装置及其处理方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658742A (en) * 1950-01-09 1953-11-10 Harold R Suter Catalytic fume incineration
US3346247A (en) * 1965-07-27 1967-10-10 Goodrich Co B F Heating apparatus for rubber or rubber-like strip material
US3351329A (en) * 1965-10-20 1967-11-07 Gen Electric Wire coating oven apparatus
US5547373A (en) * 1993-09-30 1996-08-20 Apv Baker, Inc. Baking oven with integral emissions control apparatus
US5944512A (en) * 1998-08-10 1999-08-31 Ludwig; Mark Heating and incineration device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390559A (en) * 1972-05-10 1975-04-16 Codan Gummi As Continuous vulcanization of rubber
FR2798989B1 (fr) * 1999-09-28 2002-01-18 Paumelle Sa Ets Four a gaz de cuisson en continu notamment de produits en caoutchouc

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658742A (en) * 1950-01-09 1953-11-10 Harold R Suter Catalytic fume incineration
US3346247A (en) * 1965-07-27 1967-10-10 Goodrich Co B F Heating apparatus for rubber or rubber-like strip material
US3351329A (en) * 1965-10-20 1967-11-07 Gen Electric Wire coating oven apparatus
US5547373A (en) * 1993-09-30 1996-08-20 Apv Baker, Inc. Baking oven with integral emissions control apparatus
US5944512A (en) * 1998-08-10 1999-08-31 Ludwig; Mark Heating and incineration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108105786A (zh) * 2017-12-22 2018-06-01 福建省固体废物处置有限公司 一种固体废物处理装置及其处理方法

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WO2006075076A1 (fr) 2006-07-20
CA2594520A1 (fr) 2006-07-20
FR2880678B1 (fr) 2007-04-06
ATE413957T1 (de) 2008-11-15
ES2317500T3 (es) 2009-04-16
DE602006003626D1 (de) 2008-12-24
CN101128298A (zh) 2008-02-20
EP1841577A1 (de) 2007-10-10
CN100579760C (zh) 2010-01-13
EP1841577B1 (de) 2008-11-12
FR2880678A1 (fr) 2006-07-14

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