EP0971191B1 - Procédé et dispositif pour traiter des objets par un gaz chauffé - Google Patents

Procédé et dispositif pour traiter des objets par un gaz chauffé Download PDF

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Publication number
EP0971191B1
EP0971191B1 EP99111709A EP99111709A EP0971191B1 EP 0971191 B1 EP0971191 B1 EP 0971191B1 EP 99111709 A EP99111709 A EP 99111709A EP 99111709 A EP99111709 A EP 99111709A EP 0971191 B1 EP0971191 B1 EP 0971191B1
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EP
European Patent Office
Prior art keywords
gas
heated
heated gas
inlet
cooler
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
EP99111709A
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German (de)
English (en)
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EP0971191A2 (fr
EP0971191A3 (fr
Inventor
Bernd Dipl.-Phys. Böhnke
Rudolf Dipl.-Phys. Gudehus
Roland Dipl.-Phys. Hampel
Norbert Sander
Hans Weber
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.)
Moenus Textilmaschinen GmbH
Original Assignee
Moenus Textilmaschinen 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.)
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Publication date
Priority claimed from DE19918102A external-priority patent/DE19918102A1/de
Application filed by Moenus Textilmaschinen GmbH filed Critical Moenus Textilmaschinen GmbH
Publication of EP0971191A2 publication Critical patent/EP0971191A2/fr
Publication of EP0971191A3 publication Critical patent/EP0971191A3/fr
Application granted granted Critical
Publication of EP0971191B1 publication Critical patent/EP0971191B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating

Definitions

  • the invention relates to a method for treating goods by means of a heated gas according to the preamble of claim 1 and an apparatus according to the preamble of claim 8.
  • a treatment of goods by means of heated gases takes place in different industrial processing, e.g. when drying wet or solvent-based products in drying plants, during curing of coatings or moldings in ovens or in the storage of cold-sensitive goods in Warehouses.
  • a combination of storage and drying takes place in the big ones Drying rooms in which ceramic workpieces (for example refractory blocks for Construction of float glass basins, porcelain or high voltage insulators) often over Weeks to be dried.
  • the exemplified heated rooms must to achieve a uniform temperature distribution targeted and even with the heated Gas to be flowed through. This is usually done accordingly sized blowers.
  • the air in Circulation method moved by circulating air fans, which from the room air, recirculation called, sucked off and elsewhere - after a warming and if necessary, clean - refill.
  • the usually required high Air quantities require the use of powerful fans, so that the Purposes of saving power, the pressure losses in the recirculation system constructive must be minimized. This is done by the flow cross sections for the Circulation air flows chosen as large as possible and distributing units such as air baffles, Chokes etc. are avoided.
  • the object of the invention is to provide a method for treating goods by means of a heated gas according to the preamble of claim 1 and an apparatus to develop according to the preamble of claim 8, in which a uniform temperature distribution of the heated gas without high pressure losses achieved in the flow path.
  • the inventive method on the treatment of web or plate-shaped material in the recirculation method in one Dryer with several floors to be applicable to all floors of the dryer Drying air of the same temperature is supplied.
  • the heated according to the invention Mixed gas in the region of the punctiform inlet with a mixing gas, wherein the admixing gas through a part of the flow downstream of the Blower located heated gas is formed.
  • the mixture in the area of point-shaped inlet can be directly at or in front of the point-shaped inlet take place, the point-like inlet as such being substantially retained, but it can also be arranged in a directly after the point-shaped inlet Mixing done.
  • the method according to the invention therefore not the pure heated gas supplied to the cooler gas, but a homogeneous mixture as possible heated gas and admixed gas. Since the admixing gas consists of heated gas, it has a lower temperature than the heated gas. The mixture of heated Gas and Zumischgas is therefore correspondingly cooler than the pure heated gas. As a result, the above with respect to the prior art described Disadvantages of the punctiform supply to the cooler gas avoided. It kick so no hot air strands or thermal effects on and the temperature distribution is homogeneous.
  • the removal of the admixing gas from behind the blower heated gas also has the advantages that, firstly, no separate gas must be provided and secondly, the pressure of - already existing - Blower for the return of the admixed gas and its mixture with the heated gas is exploited. As a result, the existing systems and Method to be changed for the conversion to inventive method minimized.
  • the mixture of heated gas and Zumischgas after the point-shaped inlet distributed in the vertical direction.
  • a distribution is for the heated gas known in the art and advantageous when a in Vertical direction extending gas stream is needed for the treatment of goods.
  • a less hot mixture of heated gas and Zumischgas and in addition a larger volume is present, occur in the vertical distribution barely disturbing thermal effects on and the result of Distribution is significantly more homogeneous.
  • the cooler gas in which the heated gas is admitted in whole or in part from circulating air.
  • the gas is under circulating air understand, which supplied as heated gas to be treated goods was cooled and after exposure to the goods and possibly with too laden with removing products.
  • Such a method works accordingly the recirculation principle, i. a circulation of the used for treatment Gas, and therefore achieves a corresponding energy and gas savings.
  • the heated gas is preferably hot air or the burner gas according to claim 4 a gas or oil burner.
  • gases are due to their advantageous Properties commonly used as heat sources in the art and are characterized by a naturally relatively high temperature. The from this high temperature resulting problems are caused by the inventive method effectively avoided.
  • Claim 5 relates specifically to a method in which web-like or plate-shaped goods are dried in several stages in the recirculation method, wherein in at least one stage heated gas is supplied as drying air through a serving as a fan recirculation fan via a pressure chamber and connected to the pressure chamber, located on each floor above and possibly below the goods nozzle boxes the estate, and wherein circulating air as a cooler gas in a Suction chamber combined with heated gas and fed as drying air through the recirculation fan, the pressure chamber and the nozzle boxes the goods again.
  • This known method according to the invention is characterized in that a portion of the drying air is returned as admixing gas from the pressure chamber into the suction chamber, mixed with the heated gas and this mixture is then supplied to the circulating air.
  • the mixture of heated gas and recirculated drying air has a larger volume and a lower temperature than the heated gas and is easier to mix with the circulating air to a drying air of homogeneous temperature.
  • a drying air the temperature of which remains the same over the height of the suction chamber. A temperature gradient due to rising due to the thermal heated gas is avoided.
  • the goods transported in floors through the dryer are dried evenly.
  • the heated gas to a Temperature of 160 to 220 ° C, the cooler gas to a temperature of 80 to 150 ° C and the heated gas adjusted to a temperature of about 2000 ° C. are preferably recycled such an amount Zumischgas that the Temperature of the mixture of heated gas and Zumischgas a temperature of 300 to 500 ° C, in particular from 350 to 450 ° C.
  • the production of heated gas has become more homogeneous Temperature proved to be particularly easy.
  • a recirculated according to claim 7 portion of 7 to 25%, in particular of 10 up to 20%, of the heated gas as the admixing gas provides a mixture of heated Gas and cooler gas of homogenous temperature safely.
  • the invention also relates to a device for treating goods by means of a heated gas according to the preamble of claim 8, which a Treatment room and a heating room has.
  • a Treatment room can be very general form and is e.g. as a separate chamber to the Connect the heating room or completely surround the heating room.
  • the heating space has an inlet for a cooler gas; at least one point inlet for the supply of heated gas in the cooler gas, a Heated gas outlet and a blower located at the outlet and connected with its pressure side with the treatment room.
  • the arrangement of the Blower at the exit of the heating room is done so that with the blower Gas from the heating space through the outlet can be promoted out.
  • the fan can also form the outlet.
  • the device according to the invention is characterized in that the Warming room also a mixing device, which in the field of point-shaped inlet of the heated gas is arranged, as well as a Mischgaszutechnisch, which from the pressure side of the blower to the Mixing device leads, contains.
  • the arrangement of the mixing device can directly at or before the point-shaped inlet, wherein the point-like inlet as such is essentially preserved, but it can also directly after the punctiform inlet.
  • About the mixing device can the heated gas a cooler Zumischgas be admixed. This leads to a reduction in the Temperature and an increase in the volume and the subsequent Mixing with the cooler gas in the warming room finds significant more even.
  • the admixing gas can be via the mixed gas supply line from the pressure side of the Blowers are tapped. This has the advantage that the blower pressure is exploited, so no further structural measures or facilities are necessary to give the Zumischgas the required pressure. moreover no extra gas must be provided for the admixture, as a Any existing gas is taken anyway.
  • the heating space includes a distributor, which is arranged directly behind the point-shaped inlet for the heated gas and the extending in the horizontal and / or preferably in the vertical direction.
  • the Extension preferably takes place approximately to the limits of Warming space, so that a well-distributed introduction of the mixture can be made of heated gas and Zumischgas in the cooler gas.
  • the inventive device of the punctiform Inlet formed as a burner whose flame tube protrudes into the heating space is characterized in that the mixing device by a Outer tube, which surrounds the flame tube at least partially, and by within this outer tube circumferentially distributed openings in the flame tube in this covered area is formed. This allows the Zumischgas over the circumference Spread the flame tube evenly into the flame tube.
  • Such Mixing device is structurally relatively simple, so that even existing burners can be retrofitted with this.
  • the arrangement of the outer tube and the openings in the flame tube according to Claim 11 in the flow direction of the burner gas starting region of the Flammrohres provides as long as possible mixing distance between burner gas and Mixing gas safely.
  • the mixed gas feed line as a Connecting line between his pressure chamber and the flame tube of his Burner trained.
  • the device is for carrying out a method according to the claims 1 to 7 suitable.
  • the device may be used as a dryer used for drying goods. From the pressure chamber can be with Help the connecting line simply heated gas (drying air) to the burner traced. Through the mouth of the connecting line in the flame tube, the Connecting line to be arranged completely within the device.
  • the output point of the connecting line to the pressure chamber according to To provide claim 15 in the central region of the pressure chamber, guaranteed in the pressure chamber a uniform flow of drying air in the Nozzle boxes.
  • the invention is further illustrated by a in the figures 2 to 4 schematically illustrated second example of a dryer for a textile web explained.
  • FIG. 2 is a Section through the center axis of a burner arranged in the suction chamber perpendicular to the transport planes of the web, d. H. parallel to the width of the Dryer.
  • Figure 3 is a view from the dryer longitudinal wall in the direction of Web on a nozzle box of the air circulation device and shows the location of a Filters and a cross-flow fan.
  • Figure 4 is a section parallel to the Transport levels of the web.
  • FIG. 1 shows a device for the treatment of goods by means of heated gas with a treatment room 50 and a heating room 51.
  • the Warming space 51 has an inlet 52 for a cooler gas, at least one point-shaped inlet 53 for the supply of heated gas in the cooler gas and an outlet 54 for heated gas.
  • the punctiform inlet 53 for heated gas may be on a wall of the heating room 50 or in his Inside are located.
  • a heat source such as a burner whose Outlet the point-shaped inlet 53 for heated gas in the heating space 51st forms.
  • the inlet 52 for the cooler gas is located at the front in the flow direction End and the outlet 54 for heated gas at the rear end of Heating space 51, that is, they are at each other at these two ends across from.
  • the device further comprises a fan 55 which is at the outlet 54 of the Warming space 51 is arranged and the suction point with the Warming space 51 and its pressure side with the treatment chamber 50th connected is.
  • the blower 55 is a cross-flow fan formed, which forms the outlet 54 of the heating chamber 51.
  • the device has a mixing device 56, 57, which in the Is arranged portion of the punctiform inlet 53 for the heated gas, and a mixed gas supply line 58, which from the pressure side of the blower 55 to the Mixer 56, 57 leads.
  • the inside of the heating space 51 is arranged Burner a gas burner with a flame tube 56, the open end of the Flame tube 56 forms the point-shaped inlet 53.
  • the flame tube 56 is of a wrapped around additional outer tube 57 and has openings within the enclosure on.
  • the mixing device is through the apertured flame tube 56th and the enveloping outer tube 57 formed, wherein the mixed gas supply line 58 to the Outer tube 57 is connected.
  • the openings in the flame tube 56 are preferably arranged in the initial region of the flame tube 56.
  • the Mixer is in this example before the punctiform inlet 53rd arranged.
  • the scope of the invention also includes mixing devices that are arranged immediately behind the punctiform inlet 53.
  • a distributor 59 is connected, the extends vertically and / or horizontally into the heating space 51 and over the Extension has openings.
  • the only indicated treatment room becomes 50 be formed accordingly.
  • the Warming space 51 supplied.
  • This gas may preferably be Circulating air from a cycle, act.
  • the heating room 51 becomes the cooler Gas heated gas, namely burner gas supplied.
  • the gases leave the Warming space 51 at the outlet 54 via the fan 55 as a heated gas, the the treatment of goods serves.
  • the heated gas can be hot air or that Be burner gas of a gas or oil burner.
  • the burner gas is initially passed through a mixing device 56, 57 a, mixed with the fuel gas, cooler Zumischgas.
  • the Zumischgas is doing about a mixed gas supply line 58 on the pressure side of the Blower 55 taken from the stream of heated gas.
  • the outer tube 57 and the openings in the flame tube 56 cooperate as a mixing device for the Burner gas and the admixed gas. This lowers the temperature of the mixture from burner gas and Zumischgas compared with the burner gas, and the volume the mixture to be introduced into the cooler gas increases, so that the subsequent mixing with the cooler gas is homogeneous.
  • the mixture of burner gas and admixing gas leaves via a punctiform Inlet 53, the mixing device 56, 57 and is by means of the distributor 59th evenly introduced into the stream of cooler gas.
  • a device according to the invention for railway or plate-shaped material in several floors with a transport device and with Convection devices as Mehretagenspannrahmentrockner for a textile Web 1 is formed.
  • the dryer has a cuboid housing a field, as well as a multi-layer tenter with a tensioning chain, Guide rails and pulleys trained transport device.
  • the field of this dryer is in two superimposed chambers 2, 3rd divided.
  • the lower chamber 2 extends over four floors, d. H. over four Transport levels of the web 1, and the upper chamber 3 via two more, in the drawing not shown transport planes of the web. 1
  • each of the chambers 2, 3 are two recirculation devices, each with one with his Suction side to a suction chamber 4 connected circulating air fan in Longitudinal direction of the dryer, d. H. in or against the transport direction of the web 1, arranged one behind the other.
  • the suction chambers 4 with the circulating air fans are wechel notebook on the sides of the dryer next to the web 1, d. H. Next the edges of the superposed sections of the web 1, arranged.
  • Each on the opposite side of the web 1 is a Exhaust air space 5 formed between the web 1 and a housing wall 6.
  • the exhaust air chambers 5 each open via a filter 7 in the suction chamber 4 of adjacent recirculation device.
  • a recirculation device has in addition to the recirculation fan and the filter 7, one connected to the pressure side of the recirculation fan, between Suction chamber 4 and web 1 arranged as a pressure box 8 trained Pressure chamber and nozzle boxes 9 and arranged in the suction chamber 4 Heating device with a burner 10 on.
  • The, also referred to as nozzle fingers, nozzle boxes 9, go from the about the entire chamber height extending printing boxes 8.
  • the nozzle boxes 9 are in each floor above and below the web 1 side by side are arranged and extend over the maximum width of the web. 1
  • the nozzle boxes 9 a recirculation device and the nozzle boxes 9 of the two adjacent recirculation devices follow closely in the longitudinal direction of the dryer on each other, so that the sections of the web 1 except for spaces between the nozzle boxes 9 completely from the nozzle boxes 9 above and below are covered.
  • the recirculation fans are as cross-flow fans 11th are formed and each extend over both chambers 2, 3.
  • the suction chamber 4 is through a housing bottom 12 and a chamber. 2 and 3 separating chamber bottom 13 and through the housing wall 6, the filter 7, a chamber wall 14, a baffle 15, the suction of the Crossflow fan 11 separates from the pressure range and the crossflow fan 11th limited.
  • the chamber wall 14 extends starting from perpendicular to the housing wall. 6 arranged filter 7 initially parallel to the housing wall 6 and then obliquely on the housing wall 6, in front of which the cross-flow fan 11 is arranged, to. It abuts against the guide plate 15. Near the filter 7, the chamber wall 14th an exhaust duct 17.
  • the burner 10 is approximately half the height of the chamber 2 in the region of Intake chamber 4 installed in the insulated housing wall 6. Inside the Suction chamber 4, the burner 10 has a fixed to the housing wall 6 Flame tube 18 on. Before the insulation of the housing wall 6 is in the range of Attachment of the flame tube 18, an insulating plate 19 is provided.
  • the flame tube 18 has three sections 20, 21 and 22.
  • the length of a quarter to one Third corresponds to the length of the flame tube 18, the flame tube 18 is perforated.
  • the perforation is made by a distance of a few mm, for example 2 mm, arranged, circular openings with a diameter of 5 to 20 mm, for example, of 10 mm, formed.
  • second portion 21 of the flame tube 18 is an in Starting position horizontal, by a downstream flow direction Axis 23 angle-adjustable gas distribution flap 24 is arranged.
  • In Flow direction subsequent to the gas distribution flap 24 are in Flame tube 18 each have a bent up and down baffle 25, each in a manifold 26, in the first portion 27, opens.
  • the Distributor pipes 26 extend upwards from the flame tube 18 and below.
  • At the first rectangular section 27 constant cross-section is respectively a second section 28 flanged.
  • the second section 28 of each Distributor tube 26 tapers, as seen in Figure 3, parallel to the longitudinal wall of the Trockners on the side facing away from the crossflow fan 11 side up or downward.
  • the second section 28 has almost over its entire length to the cross-flow fan 11 directed opening 29.
  • the length of the second Section 21 of the flame tube 18 is about half the length of the Flame tube 18.
  • the third portion 22 of the flame tube 18 is on the opening 29 opposite side tapered slightly inwardly conically.
  • the pressure box 8 has a bottom wall 30, a ceiling wall 31, a to Web 1 directed vertical side wall 32 with openings for the Nozzle boxes 9 and an obliquely to the housing wall 6 extending side wall 33rd on.
  • the oblique part of the chamber wall 14 and the side wall 33 of the pressure box 8 are approximately parallel.
  • the connecting line 34th has starting from the pressure box 8 two connecting portions 35, 36 and a Outer tube 37 on.
  • the outer tube 37 encloses the flame tube 18 and is together attached to the housing wall 6 with the flame tube 18.
  • the diameter of the round outer tube 37 is about 1.1 to 1.5 times, for example, 1.3 times the diameter of the flame tube 18th
  • Connecting line 34 are, as seen in Figure 4, obliquely to the longitudinal direction of Trockners, arranged and open at approximately right angles in the middle of the obliquely extending side wall 33 in the pressure box 8.
  • Der Connecting portion 36 leads from the outer tube 37 to an opening in the Chamber wall 14 and the following connection portion 35 of the connecting line 34 from the opening 28 of the chamber wall to the pressure box 8. Both Connecting portions 35, 36 are fixed to the chamber wall 14.
  • the lower chamber 2 are corresponding Circulating air devices arranged.
  • An inventive Device can be used as a dryer for drying webs of other Materials such as paper, plastic, metal or as a dryer for drying Building material parts, for example, plates, be formed.
  • the transport device can as a meandering transport device or in several floors parallel Be formed transport device.
  • the texile web 1 by means of the transport device in several Floors, in this example from bottom to top through the dryer.
  • First in the lower chamber 2 then in the upper chamber 3 is the Web 1 each arranged by the two consecutively Recirculation devices by means of the cross-flow fan 11 through the pressure box. 8 and the nozzle boxes 9 fed drying air and thereby dried.
  • the of the Web 1 outgoing circulating air (called exhaust air in the priority application) flows through an exhaust air chamber 5 and a filter 7 in the suction chamber 4, from the one Part is withdrawn via the exhaust duct 17 as exhaust air and in the remaining Circulating air is heated to drying air using hot burner gas.
  • the crossflow fan 11 sucks the drying air and leads them to the web 1 via the pressure box 8 and the nozzle boxes. 9 again.
  • a portion of 7 to 25%, in particular 10 to 20% of the drying air is about withdrawn the connecting line 34 from the pressure box 9 and under pressure in the suction chamber 4 returned to the flame tube 18 of the burner.
  • the Drying air flows out of the outer tube 37 of the connecting pipe 34 through the Perforation of the flame tube 18 distributed over the circumference of the flame tube in the Flame tube 18, in which the burner gas is mixed with the drying air.
  • the amount of recirculated drying air is adjusted so that the Mixture of burner gas and drying air at a temperature of 300 to 500 ° C, in particular from 350 to 450 ° C.
  • a temperature of the circulating air of 150 ° C and a temperature of the burner gas of about 2000 ° C is through Recycling a proportion of about 20% of the drying air to a temperature of Mixture of burner gas and drying air of 400 ° C set.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Claims (15)

  1. Procédé de traitement de produits au moyen d'un gaz tiédi, dans lequel
    (a) on envoie du gaz chauffé en au moins une entrée ponctuelle à un gaz plus froid pour produire un gaz tiédi,
    (b) on envoie le gaz tiédi, qui contient le gaz chauffé et le gaz plus froid rassemblés, par une soufflante aux produits à traiter,
       caractérisé en ce que
    (c) on mélange le gaz chauffé dans la zone de l'entrée ponctuelle à un gaz d'addition,
    (d) une partie du gaz tiédi se trouvant en aval, dans le sens du courant, de la soufflante étant recyclé comme gaz d'addition.
  2. Procédé suivant la revendication 1,
       caractérisé en ce que l'on répartit, dans la direction verticale après l'entrée ponctuelle, le mélange constitué du gaz chauffé et du gaz d'addition.
  3. Procédé suivant la revendication 1 ou 2,
       caractérisé en ce que le gaz plus froid au stade (a) est constitué en tout ou partie d'air en recirculation.
  4. Procédé suivant l'une des revendications 1 à 3,
       dans lequel le gaz chauffé est de la vapeur d'eau ou le gaz d'un brûleur à gaz ou d'un brûleur à pétrole.
  5. Procédé suivant l'une des revendications 1 à 4,
       dans lequel on sèche des produits en forme de bande ou en forme de plaque dans plusieurs étages, dans un procédé à recirculation d'air,
       dans lequel en outre, on envoie au produit, dans au moins un étage, du gaz tiédi comme air de séchage par un ventilateur d'air en recirculation servant de soufflante en passant par une chambre sous pression et un caisson de buses raccordé à la chambre sous pression et disposé dans chaque étage au-dessus et le cas échéant en dessous du produit,
       et dans lequel on réunit de l'air en recirculation en tant que gaz plus froid dans une chambre d'aspiration avec du gaz chauffé et on l'envoie comme air de séchage, en passant par le ventilateur d'air de recirculation, la chambre sous pression et les caissons à buses, à nouveau au produit,
       caractérisé en ce que
       on retourne une partie de l'air de séchage, en tant que gaz d'addition, de la chambre (8) sous pression à la chambre (4) d'aspiration, on le mélange au gaz chauffé et on ajoute ensuite ce mélange à l'air en recirculation.
  6. Procédé suivant l'une des revendications 1 à 5,
       dans lequel on règle une température du gaz tiédi entre 160° et 220° C, une température du gaz plus froid de 80° à 150° C et une température du gaz chauffé d'environ 2000° C,
       caractérisé en ce que
       l'on règle par la quantité du gaz d'addition ajouté une température du mélange constitué du gaz chauffé et du gaz d'addition entre 300° et 500° C, notamment entre 350° et 450° C.
  7. Procédé suivant l'une des revendications 1 à 6,
       caractérisé en ce que la partie du gaz tiédi, qui est retournée en tant que gaz d'addition, représente de 7 à 25 %, notamment de 10 à 20 % de tout le gaz tiédi.
  8. Dispositif de traitement de produits au moyen d'un gaz tiédi, comprenant une chambre (5) de traitement et une chambre (51) de tiédissement ayant
    (a) une entrée (52) pour un gaz plus froid,
    (b) au moins une entrée (53) ponctuelle pour l'addition de gaz chauffé au gaz plus froid,
    (c) une sortie (54) pour du gaz pour du gaz tiédi,
    (d) une soufflante (55), qui est montée dans la sortie et qui communique par son côté aspiration avec la chambre de traitement,
       caractérisé par
    (e) un dispositif (20, 37, 56, 57) de mélange, qui est disposé dans la zone de l'entrée (10, 53) ponctuelle pour le gaz chauffé, et
    (f) un conduit (34, 58) d'apport de gaz de mélange, qui va du côté refoulement de la soufflante (11, 55) au dispositif (37, 56, 57) de mélange.
  9. Dispositif suivant la revendication 8,
       dans lequel la chambre (51) de tiédissement comporte un dispositif (26, 59) de répartition, qui est disposé directement derrière l'entrée (53) ponctuelle pour le gaz chauffé et qui s'étend de préférence dans la direction verticale.
  10. Dispositif suivant la revendication 8 ou 9, dans lequel l'entrée ponctuelle est constituée en brûleur dont le tube de flammes pénètre dans la chambre de tiédissement, caractérisé en ce que le dispositif de mélange est formé par un tube (37, 57) extérieur, qui entoure au moins en partie le tube (18, 56) de flammes et par des ouvertures dans le tube (18, 56) de flammes ménagé dans cette partie entourée.
  11. Dispositif suivant la revendication 10,
       caractérisé en ce que les ouvertures sont disposées dans la zone de début du tube (18, 56) de flammes.
  12. Dispositif suivant l'une des revendications 10 ou 11, pour sécher du produit en forme de bande ou de plaque dans plusieurs étages,
       comprenant un dispositif de transport pour le produit,
       comprenant au moins un dispositif de recirculation d'air, ayant un ventilateur de recirculation d'air servant de soufflante comprenant une chambre sous pression qui s'étend sur plusieurs étages, comprenant des caissons de buses qui partent de la chambre de pression et qui sont disposés côte à côté dans chaque étage au-dessus et le cas échéant en dessous du plan de transport du produit,
       et comprenant une chambre d'aspiration servant de chambre de tiédissement,
       caractérisé en ce que le conduit d'apport de gaz de mélange est constitué sous la forme d'un conduit (34) de liaison entre la chambre (8) sous pression et le dispositif de mélange.
  13. Dispositif suivant les revendications 12 et 10,
       caractérisé en ce que le tube (37) extérieur fait partie du conduit (34) de liaison.
  14. Dispositif suivant l'une des revendications 11 ou 12,
       dans lequel le dispositif de répartition est formé par des tubes formant répartiteurs, qui sont disposés dans la zone d'extrémité du tube de flammes, qui s'étendent perpendiculairement au plan de transport, qui s'étendent sur toute la hauteur de la chambre sous pression et qui sont munis d'ouvertures,
       caractérisé en ce que le tube (37) extérieur entoure complètement le tube (18) de flammes et les tubes (26) formant répartiteurs traversent le tube (37) extérieur.
  15. Dispositif suivant l'une des revendications 10 à 14, dans lequel la chambre sous pression est formée par un caisson sous pression disposé entre la bande de produit et la chambre d'aspiration,
       caractérisé en ce que le conduit (34) de liaison part de la zone médiane du caisson (8) sous pression.
EP99111709A 1998-07-09 1999-06-17 Procédé et dispositif pour traiter des objets par un gaz chauffé Expired - Lifetime EP0971191B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19830664 1998-07-09
DE19830664 1998-07-09
DE19918102 1999-04-22
DE19918102A DE19918102A1 (de) 1998-07-09 1999-04-22 Verfahren und Vorrichtung zum Behandeln von Gütern mittels eines erwärmten Gases

Publications (3)

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EP0971191A2 EP0971191A2 (fr) 2000-01-12
EP0971191A3 EP0971191A3 (fr) 2001-12-12
EP0971191B1 true EP0971191B1 (fr) 2005-02-09

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EP (1) EP0971191B1 (fr)
KR (1) KR100413867B1 (fr)
AT (1) ATE289051T1 (fr)
PT (1) PT971191E (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100343608C (zh) * 2002-12-25 2007-10-17 乐金电子(天津)电器有限公司 干燥器的空气供应管道
CN1316221C (zh) * 2002-12-25 2007-05-16 乐金电子(天津)电器有限公司 烘干机的空气供应通道
KR100668696B1 (ko) * 2004-05-13 2007-01-15 주식회사 엘지화학 프리프레그 제조용 트리터 오븐
US7596882B2 (en) 2004-05-13 2009-10-06 Lg Chem, Ltd. Treater oven for manufacturing prepreg
CN109539250B (zh) * 2018-10-30 2019-12-24 西安交通大学 一种低氮燃烧器及其内置式再循环烟气引入装置
CN109225775A (zh) * 2018-11-06 2019-01-18 江苏大族展宇新能源科技有限公司 锂电池涂布机用一体化烘箱

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH99095A (de) * 1921-08-08 1923-05-01 Scherhag Andreas Verfahren und Vorrichtung zur Gewinnung von Warmluft.
FR648100A (fr) * 1927-10-25 1928-12-05 Krantz Shone H Rameuse-sécheuse
US2541332A (en) * 1947-11-05 1951-02-13 Campbell Bowen Portable drier
US3057611A (en) * 1960-02-15 1962-10-09 Bjerkan Engineering Service In Burner-blower combination for grain dryers
FR1471324A (fr) * 1966-03-05 1967-03-03 Appareil de chauffage associé à une installation de séchage utilisable pour le séchage des fruits, du houblon et de produits analogues
DE2164860A1 (de) * 1971-12-27 1973-06-28 Kroenert Max Maschf Duesentrockner
DK462875A (da) * 1974-10-25 1976-04-26 Claas Maschf Gmbh Geb Torretromle til gronhost
US4147115A (en) * 1977-09-14 1979-04-03 Leppert Alfred M Incinerator with gas generation
GB1583199A (en) * 1977-12-01 1981-01-21 Whiteley Ltd E Gordon Cloth drying apparatus
FR2514118A1 (fr) * 1981-10-07 1983-04-08 Arnal Louis Procede de chauffage d'articles devant subir un traitement thermique tels que des pieces en beton, installation pour sa mise en oeuvre et appareil de combustion formant un produit industriel nouveau
DE4405819A1 (de) * 1994-02-03 1995-08-10 Manfred Baumkoetter Anordnung und Verfahren zur Erzeugung von Warmluft/Druckluft

Also Published As

Publication number Publication date
PT971191E (pt) 2005-06-30
KR20000011611A (ko) 2000-02-25
EP0971191A2 (fr) 2000-01-12
KR100413867B1 (ko) 2004-01-07
EP0971191A3 (fr) 2001-12-12
ATE289051T1 (de) 2005-02-15

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