WO2021166048A1 - 熱処理炉 - Google Patents

熱処理炉 Download PDF

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Publication number
WO2021166048A1
WO2021166048A1 PCT/JP2020/006127 JP2020006127W WO2021166048A1 WO 2021166048 A1 WO2021166048 A1 WO 2021166048A1 JP 2020006127 W JP2020006127 W JP 2020006127W WO 2021166048 A1 WO2021166048 A1 WO 2021166048A1
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WO
WIPO (PCT)
Prior art keywords
carry
heater
processed
heat treatment
treatment furnace
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.)
Ceased
Application number
PCT/JP2020/006127
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
毅史 小牧
大樹 金南
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to CN202080001224.8A priority Critical patent/CN113544452A/zh
Priority to JP2020509562A priority patent/JP6793875B1/ja
Priority to EP20774866.6A priority patent/EP3896375B1/en
Priority to PCT/JP2020/006127 priority patent/WO2021166048A1/ja
Priority to KR1020207022414A priority patent/KR102266685B1/ko
Priority to TW109131020A priority patent/TWI751685B/zh
Publication of WO2021166048A1 publication Critical patent/WO2021166048A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/145—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning on the non-perforated outside surface of which the material is being dried by convection or radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/40—Arrangements for supplying or controlling air or other gases for drying solid materials or objects using gases other than air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements

Definitions

  • the technique disclosed herein relates to a heat treatment furnace that heat-treats an object to be treated.
  • the object to be processed is bridged from the carry-in port to the carry-out port through the processing chamber.
  • the object to be processed is carried into the processing chamber from the carry-in entrance, heat-treated while being conveyed in the treatment chamber, and carried out from the carry-out port.
  • the object to be processed is guided by a plurality of guide rollers arranged in the processing chamber, and the object to be processed is conveyed along a predetermined transfer path in the processing chamber.
  • the object to be processed is transported from the carry-in port to the carry-out port through a transport path defined by a plurality of guide rollers. Therefore, in order to efficiently heat-treat the object to be processed, it is necessary to appropriately heat the object to be processed at each position on the transport path.
  • the present specification discloses a technique capable of efficiently heat-treating an object to be processed that is transported along a transport path defined by a plurality of guide rollers.
  • the heat treatment furnace disclosed in the present specification includes a furnace body, a transfer device, a plurality of guide rollers, and a heating device.
  • the furnace body includes a carry-in port, a carry-out port, and a processing chamber arranged between the carry-in port and the carry-out port.
  • the transport device transports the object to be processed, which is bridged from the carry-in port to the carry-out port, from the carry-in entrance to the carry-out port through the processing chamber.
  • the plurality of guide rollers are arranged in the processing chamber and guide the object to be conveyed to be conveyed by the conveying device.
  • the object to be processed is transported from the carry-in port to the carry-out port through a transport path defined by a plurality of guide rollers.
  • the heating device is arranged inside the guide roller and / or in the vicinity of the guide roller for each of the plurality of guide rollers, and has a first heater for heating the object to be processed and a transfer path for the object to be processed.
  • a second heater which is arranged in the vicinity of the intermediate position of the guide roller adjacent to the transport direction of the object and heats the object to be processed, is provided.
  • the second heater is a heater that radiates electromagnetic waves in the infrared region.
  • the heating device is arranged in the vicinity of the intermediate position between the first heater arranged inside the guide roller and / or in the vicinity of the guide roller and the adjacent guide roller on the transfer path. It is equipped with a second heater. Further, as the second heater, a heater that radiates electromagnetic waves in the infrared region is used. Therefore, the heat supplied from the first heater and the second heater to the object to be processed can be appropriately controlled, and the object to be processed can be efficiently heat-treated.
  • the second heater may be a heater whose wavelength cannot be controlled to radiate electromagnetic waves in a preset wavelength region (infrared region), or a heater capable of controlling the wavelength region of radiated electromagnetic waves. There may be.
  • FIG. 1 is a cross-sectional view taken along the line II-II of FIG. Sectional drawing of the heater which concerns on Example 1.
  • FIG. 1 The cross-sectional view of the air supply pipe which concerns on Example 1.
  • the first heater is arranged on the transport path of the object to be processed in the vicinity of the position where the guide roller is arranged, and is in the infrared region of the same type as the second heater. It may be a heater that radiates the electromagnetic wave of. Further, the object to be processed may be located between the first heater and the guide roller. According to such a configuration, the first heater that heats the object to be processed at the position where the guide roller is arranged becomes a heater of the same type as the second heater, so that the configuration of the heating furnace can be simplified. can.
  • the first heater may be provided inside the guide roller and may include a flow path through which a heat medium for heating the guide roller flows. With such a configuration, the object to be processed can be heated via the guide roller.
  • the heat treatment furnace disclosed in the present specification may further include an air supply device for supplying gas to the processing chamber.
  • the air supply device is arranged in the processing chamber at a position different from the position where the first heater is arranged and different from the position where the second heater is arranged, and the gas is directed toward the object to be processed. It may be provided with a plurality of air supply pipes for ejecting gas. Further, the second heater and the air supply pipe may be arranged alternately along the transport path. According to such a configuration, since the air supply pipe is arranged at a position different from the position where the first heater and the second heater are arranged, the degree of freedom of the position where the air supply pipe is arranged is improved, and the air supply pipe is optimized. Can be placed in any position.
  • the gas is injected from the air supply pipe toward the object to be processed, the ejected gas collides with the surface of the object to be processed, and the temperature of the surface of the object to be processed can be easily made uniform.
  • the second heater and the air supply pipe are alternately arranged along the transport path, the temperature of the surface of the object to be processed is further made uniform. As a result, the heat treatment efficiency of the object to be treated can be improved.
  • the ejection direction of the gas ejected from the plurality of air supply pipes may be orthogonal to the surface of the object to be treated. According to such a configuration, the gas from the air supply pipe can be vigorously ejected to the surface of the object to be processed.
  • the plurality of guide rollers are conveyed in the first direction and the first guide roller that changes the transport direction of the object to be carried in from the carry-in inlet to the first direction.
  • a second guide roller that changes the transport direction of the object to be processed in a second direction different from the first direction, and a transfer direction of the object to be transported in the second direction toward the carry-out port. It may be provided with a third guide roller for changing the above.
  • the furnace body includes a first wall located on the first direction side when viewed from the center of the treatment chamber and a second wall located on the second direction side when viewed from the center of the treatment chamber. May be good.
  • the first wall may be provided with a first exhaust port for exhausting the atmospheric gas in the treatment chamber
  • the second wall may be provided with a second exhaust port for exhausting the atmospheric gas in the treatment chamber.
  • the plurality of air supply pipes are the first air supply pipe arranged in the space sandwiched between the object to be processed and the first wall, and the object to be processed and the second wall.
  • a second air supply pipe arranged in the space sandwiched between the two may be provided. According to such a configuration, an air supply pipe is arranged in each of the two spaces divided by the object to be processed, and the air flow in the processing chamber can be optimized.
  • the inner surface of the processing chamber may have a reflectance of 50% or more that reflects electromagnetic waves in the infrared region. According to such a configuration, the electromagnetic wave radiated from the heater is efficiently irradiated to the object to be processed, and the object to be processed can be efficiently heated.
  • the transfer device is arranged outside the furnace body and in the vicinity of the carry-in inlet, and is carried by the carry-in inlet roller around which the object to be processed is wound and outside the furnace body.
  • a carry-out outlet roller which is arranged in the vicinity of the outlet and winds up the object to be processed transported in the processing chamber, may be further provided.
  • the object to be treated may include a film and a paste applied to at least one of the front surface and the back surface of the film.
  • the heating device may remove the water contained in the paste.
  • Such an object to be processed has a small heat capacity and is greatly affected by the guide roller. Therefore, by providing the first heater, the effect of suppressing a decrease in the heat treatment efficiency (that is, the water removal rate) of the object to be treated becomes remarkable.
  • the wavelength of the radiated electromagnetic wave may be adjusted in the second heater according to the characteristics of the object to be processed. According to such a configuration, the object to be processed can be suitably heated according to the characteristics of the object to be processed.
  • the plurality of second heaters may be arranged along the transport path from the carry-in inlet to the carry-out port.
  • the wavelength of the electromagnetic wave radiated from the second heater may be adjusted according to the position on the transport path where the second heater is arranged.
  • the heat treatment of the object to be processed proceeds as it is transported along the transport path in the treatment chamber. Therefore, since the wavelength of the electromagnetic wave is adjusted according to the progress of the heat treatment, the heat treatment on the object to be processed can be preferably performed.
  • the heating device may remove the water contained in the object to be treated.
  • the wavelength of the electromagnetic wave radiated from the second heater may be adjusted so as to gradually increase from the carry-in inlet to the carry-out port. Moisture contained in the object to be treated gradually decreases from the carry-in port to the carry-out port.
  • the atmosphere in the treatment chamber may be an inert gas atmosphere having a dew point of 0 ° C. or lower. According to such a configuration, it is possible to suppress the coagulation of water contained in the atmospheric gas.
  • the heat treatment furnace 10 of this embodiment is a drying furnace (dehydrating device) for removing water contained in a work W (an example of an object to be treated).
  • the work W is a sheet body that extends continuously in the longitudinal direction, and corresponds to, for example, a film used for a liquid crystal display, an organic EL, a battery, or the like.
  • the coating layer may contain water. Therefore, the water contained in the film is first removed, and then the film from which the water has been removed is cut into a desired size to produce a final product.
  • the heat treatment furnace 10 of this embodiment can be used to remove water from such a sheet body.
  • the heat treatment furnace 10 includes a rectangular parallelepiped furnace body 12, a transfer device 20 for loading and unloading the work W into and out of the furnace body 12, and a heating device (26,) for heating the work W. 28) and an air supply device (38, etc.) that supplies cooling gas to the surface of the work W are provided.
  • the lower wall 13 In the furnace body 12, the lower wall 13, the upper wall 14 facing the lower wall 13, and the side walls 17, 18 having one end connected to the lower wall 13 and the other end connected to the upper wall 14 (see FIG. 2). And the carry-in side wall 15 and the carry-out side wall 16 that close the ends of the processing chambers (19a, 19b) surrounded by these walls 13, 14, 17, and 18.
  • the lower wall 13 is a rectangular plate material when viewed in a plan view, and is arranged below the processing chambers (19a, 19b). As shown in FIG. 1, the lower wall 13 is provided with a plurality of exhaust ports 13a at a substantially constant interval in the x direction.
  • the five exhaust ports 13a arranged at the center are arranged at positions facing the guide rollers 24 described later.
  • the exhaust port 13a arranged at one end in the x direction of the plurality of exhaust ports 13a is arranged at a position close to the carry-in side wall 15.
  • the exhaust port 13a arranged at the other end of the plurality of exhaust ports 13a in the x direction is arranged at a position close to the carry-out side wall 15.
  • Each of the plurality of exhaust ports 13a is connected to the exhaust fan 13b. When the exhaust fan 13b is operated, the atmospheric gas in the processing chambers (19a, 19b) is exhausted to the outside of the processing chambers (19a, 19b).
  • the upper wall 14 is a plate material having the same shape as the lower wall 13, and is arranged above the processing chambers (19a, 19b). Similar to the lower wall 13, the upper wall 14 is also provided with a plurality of exhaust ports 14a at a substantially constant interval in the x direction. Each of the plurality of exhaust ports 14a is arranged at a position facing each of the plurality of exhaust ports 13a. Each of the plurality of exhaust ports 14a is connected to the exhaust fan 14b. When the exhaust fan 14b is operated, the atmospheric gas in the processing chambers (19a, 19b) is exhausted to the outside of the processing chambers (19a, 19b). A carry-in inlet 15a is provided on the carry-in side wall 15, and a carry-out outlet 15b is formed on the carry-out side wall 16.
  • the positions of the carry-in inlet 15a and the carry-out port 15b in the height direction are the same, and the carry-in inlet 15a and the carry-out port 15b face each other.
  • the processing chambers (19a, 19b) are arranged between the carry-in inlet 15a and the carry-out outlet 15b.
  • the inner surfaces of the walls 13, 14, 15, 16, 17, and 18 that is, the surfaces on the processing chambers (19a, 19b) side) constituting the furnace body 12 are mirror-finished.
  • the reflectance of the electromagnetic waves in the infrared region of these surfaces is 50% or more.
  • the electromagnetic waves radiated by the heaters 26 and 28 can be efficiently irradiated to the work W.
  • the transport device 20 includes a carry-in inlet roller 21 which is outside the furnace body 12 and is arranged near the carry-in inlet 15a, and a carry-out roller 25 which is outside the furnace body 12 and is arranged near the carry-out port 16a.
  • a plurality of guide rollers (22a, 22b, 22c, 24) arranged in the processing chamber (19a, 19b) are provided.
  • a work W is wound around the carry-in inlet roller 21.
  • the work W ticketed to the carry-in inlet roller 21 is bridged from the carry-in entrance 15a through the processing chambers (19a, 19b) to the carry-out port 16a.
  • the work W is bridged from the carry-in inlet roller 21 through the carry-in inlet 15a to the guide rollers (22a, 22b, 22c, 24), and further carried from the guide rollers (22a, 22b, 22c, 24). It is bridged to the carry-out outlet roller 25 via the outlet 16a.
  • the carry-out outlet roller 25 is a roller that winds up the work W carried out from the processing chambers (19a, 19b).
  • a drive device (not shown) is connected to the carry-out roller 25, and the carry-out roller 25 is rotationally driven by the drive device. When the carry-out outlet roller 25 rotates, the work W ticketed to the carry-in inlet roller 21 is sent out to the processing chambers (19a, 19b).
  • the work W sent out from the carry-in inlet roller 21 is guided by the guide rollers (22a, 22b, 22c, 24) and moves along a predetermined transport path in the processing chamber (19a, 19b), and moves from the carry-out outlet 16a to the processing chamber. (19a, 19b) It is sent out and wound up by the carry-out roller 25. That is, the guide rollers (22a, 22b, 22c, 24) define the transport path of the work W in the processing chamber (19a, 19b).
  • the guide rollers (22a, 22b, 22c, 24) include a plurality of upper guide rollers (22a, 22b, 22c) arranged in the vicinity of the upper wall 14 and a plurality of lower guide rollers arranged in the vicinity of the lower wall 13. 24 is provided.
  • the guide rollers (22a, 22b, 22c, 24) are contact type rollers that come into contact with the work W, but non-contact type rollers that guide the work W in a non-contact manner may also be used. can.
  • the upper guide rollers (22a, 22b, 22c) are arranged at regular intervals in the x direction.
  • the upper guide roller 22a (an example of the first transfer roller in the claim) is arranged adjacent to the carry-in inlet 15a, and the upper guide roller 22c (an example of the third transfer roller in the claim). Is arranged adjacent to the carry-out port 16a.
  • the plurality of guide rollers 22b are arranged at equal intervals between the upper guide roller 22a and the upper guide roller 22c.
  • the positions of the upper guide rollers (22a, 22b, 22c) in the height direction are the same.
  • each of the plurality of lower guide rollers 24 (an example of the second transfer roller in the claim) is arranged at regular intervals in the x direction.
  • the distance between the adjacent lower guide rollers 24 in the x direction is the same as the distance between the upper guide rollers (22a, 22b, 22c) in the x direction.
  • the positions of the plurality of lower guide rollers 24 in the x direction are the central positions of the adjacent upper guides (22a, 22b, 22c).
  • the positions of the plurality of lower guide rollers 24 in the height direction are the same.
  • the upper guide rollers (22a, 22b, 22c) and the lower guide rollers 24 are arranged as described above, the work W transported in the x direction from the carry-in inlet 15a is conveyed downward by the upper guide rollers 22a. Then, it is conveyed upward by the lower guide roller 24, and thereafter, it is repeatedly conveyed in the vertical direction by the upper transfer roller 22b and the lower transfer roller 24. Then, the work W that is conveyed upward from the lower transfer roller 24 that is most arranged on the carry-out port 16a side is conveyed toward the carry-out port 16a by the upper guide roller 22c.
  • the processing chambers (19a, 19b) are provided on the upper wall 14 side by the work W spanning the guide rollers (22a, 22b, 22c, 24). And the lower processing chamber 19b provided on the lower wall 13 side.
  • the heating device is arranged in the processing chambers (19a, 19b) and heats the work W transported by the transport device 20.
  • the heating device is a height between the first heaters (26a, 26b) arranged in the vicinity of the guide rollers (22a, 22b, 22c, 24), the upper guide rollers (22a, 22b, 22c) and the lower guide rollers 24. It is provided with a second heater 28 arranged on the roller. As shown in FIG. 2, the first heater (26a, 26b) and the second heater 28 extend in the axial direction of the guide rollers (22a, 22b, 22c, 24), and extend in the width direction (y direction) of the work W. It is possible to heat the whole of.
  • the first heaters (26a, 26b) are arranged below the plurality of first upper heaters 26a arranged above the upper guide rollers (22a, 22b, 22c) and below the lower guide rollers 24.
  • a plurality of first lower heaters 26b are provided.
  • Each of the first upper heaters 26a is arranged to face the corresponding upper guide rollers (22a, 22b, 22c), and each of the first lower heaters 26b is arranged to face the corresponding lower guide rollers 24. ing. Therefore, the work W is located between the first upper heater 26a and the upper guide rollers (22a, 22b, 22c), and the work W is directly heated by the first upper heater 26a. Similarly, the work W is located between the first lower heater 26b and the lower guide roller 24, and the work W is directly heated by the first lower heater 26b.
  • Two second heaters 28 are arranged below each of the upper guide rollers (22a, 22b, 22c) with an interval in the z direction. Further, two second heaters 28 are arranged above each of the lower guide rollers 24 with an interval in the z direction. Therefore, 11 second heaters 28 are arranged side by side with an interval in the x direction, and two second heaters 28 are arranged side by side with an interval in the y direction. As is clear from the figure, the second heater 28 is located at a position facing the work W bridged between the upper guide rollers (22a, 22b, 22c) and the lower guide roller 24 (that is, adjacent to the work W in the transport direction). It is located near the intermediate position between the guide rollers).
  • the second heater 28 extends in the axial direction of the guide roller (22a, 22b, 22c, 24), the width direction of the work W bridged between the upper guide roller (22a, 22b, 22c) and the lower guide roller 24. Is heated by the second heater 28.
  • the first heaters (26a, 26b) are known wavelength-controllable heaters that radiate electromagnetic waves in the infrared region, and the first heaters (26a, 26b) and the second heater 28 have the same structure. Therefore, here, the structure of the second heater 28 will be briefly described.
  • the second heater 28 includes a filament 30, an inner tube 32 accommodating the filament 30, and an outer tube 34 accommodating the inner tube 32.
  • the filament 30 is, for example, a heating element made of tungsten, and is supplied with electric power from an external power source (not shown). When electric power is supplied to the filament 30 to reach a predetermined temperature (for example, 1200 to 1700 ° C.), an electromagnetic wave including infrared rays is radiated from the filament 30.
  • the inner tube 32 is formed of an infrared transmissive material that transmits only electromagnetic waves in a specific wavelength region (infrared region in this embodiment) among the electromagnetic waves radiated from the filament 30.
  • the infrared transmissive material forming the inner tube 32 By appropriately selecting the infrared transmissive material forming the inner tube 32, the wavelength of the electromagnetic wave radiated from the filament 30 to the outside of the inner tube 32 can be adjusted to a desired wavelength.
  • the outer tube 34 is also made of the same infrared transmitting material as the inner tube 32. Therefore, the electromagnetic wave transmitted through the inner tube 32 is transmitted to the outside through the outer tube 34.
  • the space 36 between the inner pipe 32 and the outer pipe 34 is a refrigerant flow path through which a refrigerant (for example, air) flows.
  • a wavelength-controllable heater that radiates electromagnetic waves in the infrared region is disclosed in detail in, for example, Japanese Patent No. 4790092.
  • the air supply device is an air supply device that supplies cooling gas to a plurality of air supply pipes 38 extending in the y direction inside the treatment chamber (19a, 19b) and a plurality of air supply pipes 38 arranged outside the treatment chamber (19a, 19b). It is equipped with a fan (not shown). As shown in FIG. 4, the air supply pipe 38 is formed with ejection holes 39a and 39b at two locations in the circumferential direction. Therefore, the cooling gas supplied from the air supply fan to the air supply pipe 38 is injected into the processing chambers (19a, 19b) from the ejection holes 39a, 39b.
  • the direction in which the air supply pipe 38 is installed is adjusted so that the ejection direction of the cooling gas injected from the ejection holes 39a and 39b is orthogonal to the surface of the work W.
  • the ejection holes 39a and 39b are arranged at positions facing each other with the axis of the air supply pipe 38 interposed therebetween. Therefore, when the work W is located on each of the carry-in inlet 15a side and the carry-out port 16a side of the air supply pipe 38, the cooling gas injected from the ejection hole 39a of the air supply pipe 38 is injected into one work W, and the work W is concerned. The cooling gas injected from the ejection hole 39b of the air supply pipe 38 is injected into the other work W.
  • a plurality of ejection holes 39a and 39b of the air supply pipe 38 are formed at intervals in the y direction. Therefore, the cooling gas injected from the ejection holes 39a and 39b is injected in the entire width direction (y direction) of the work W.
  • two air supply pipes 38 are arranged below each of the upper guide rollers (22a, 22b, 22c) at intervals in the z direction. Further, two air supply pipes 38 are arranged above each of the lower guide rollers 24 with an interval in the z direction. As is clear from FIG. 1, the air supply pipe 38 is arranged at a position different from the position where the first heater (26a, 26b) and the second heater 28 are arranged. Specifically, the second heater 28 and the air supply pipe 38 are alternately arranged at equal intervals in the z direction (conveying direction).
  • the processing chamber (19a, 19b) is divided into an upper processing chamber 19a and a lower processing chamber 19b by the work W bridged over the guide rollers (22a, 22b, 22c, 24).
  • air supply pipes 38 are arranged in each of the upper treatment chamber 19a and the lower treatment chamber 19b.
  • the cooling gas supplied to the air supply pipe 38 for example, an inert gas, nitrogen, Ar gas or the like can be used.
  • the atmospheric gas in the treatment chambers (19a, 19b) is adjusted by the gas injected from the air supply pipe 38 into the treatment chambers (19a, 19b).
  • the atmospheric gas in the treatment chambers (19a, 19b) is adjusted to a gas having a dew point of 0 ° C. or lower.
  • the cooling gas may be an atmosphere having a dew point of 0 ° C. or lower.
  • the controller 44 is composed of a processor including a CPU, ROM, and RAM, and controls a transfer device 20, a heating device (26, 28), and an air supply device. Specifically, the controller 44 controls the transport speed and tension of the work W by controlling the transport device 20, controls the heating amount of the work W by controlling the heating devices (26, 28), and supplies the work W. By controlling the air device, the flow rate and the flow velocity of the cooling gas injected from the air supply pipe 38 to the work W are controlled.
  • the heat treatment furnace 10 is provided with a through device for setting the work W wound around the carry-in inlet roller 21 on the carry-out outlet roller 25.
  • the threading device includes a chain 42 that circulates inside the processing chamber (19a, 19b) and outside the processing chamber (19a, 19b), and a driving device (not shown) that drives the chain 42. ing.
  • the chain 42 extends from the carry-in port 15a to the carry-out port 16a while changing its direction in the vertical direction, and extends from the carry-out port 16a to the processing chamber (similar to the work W spanned by the guide rollers (22a, 22b, 22c, 24). It passes through the outside of 19a, 19b) and returns to the carry-in entrance 15a.
  • the path over which the chain 42 is laid intersects the path over which the work W is laid (that is, the transport path of the work W) at a plurality of places. Since the position where the chain 42 is arranged is a position outside the width direction (y direction) of the work W, the chain 42 and the work W do not interfere with each other (see FIG. 2).
  • the work W wound around the carry-in inlet roller 21 is clamped by a clamp (not shown) provided on the chain 42.
  • the chain 42 is circulated by the drive device, and the work W is sent out from the carry-in inlet roller 21.
  • the work W held by the clamp of the chain 42 moves in the processing chamber (19a, 19b) together with the chain 42, and moves to the carry-out port 16a.
  • the clamp is operated to release the work W from the chain 42, and the work W is set on the carry-out roller 25.
  • the work W is bridged from the carry-in inlet 15a to the carry-out port 16a via the guide rollers (22a, 22b, 22c, 24).
  • the cooling gas is supplied from the air supply pipe 38 into the processing chambers (19a, 19b), and the inside of the processing chambers (19a, 19b) is adjusted to a predetermined atmosphere.
  • the controller 44 drives the transport device 20 to transport the work W from the carry-in inlet 15a to the carry-out port 16a through the processing chambers (19a, 19b).
  • the controller 44 controls the heating devices (26, 28) to irradiate the work W with electromagnetic waves in the infrared region, and ejects cooling gas from the air supply pipe 38 to the surface of the work W.
  • a first heater (26a, 26b) facing the guide roller (22a, 22b, 22c, 24) is provided in the vicinity of the guide roller (22a, 22b, 22c, 24). Further, a second heater 28 is provided between the upper guide rollers (22a, 22b, 22c) and the lower guide roller 24. Since these heaters 26a, 26b, 28 can control the heat balance with respect to the work W in the state of being in contact with the guide rollers (22a, 22b, 22c, 24), and also in contact with the guide rollers (22a, 22b, 22c, 24). It is possible to control the heat balance with respect to the work W in the non-working state.
  • the heat balance of the work W can be suitably controlled, and the efficiency of the process of removing water from the work W can be remarkably improved.
  • the work W comes into contact with the guide rollers (22a, 22b, 22c, 24)
  • the air supply pipe 38 and the second heater 38 are alternately arranged in the transport direction, and the cooling gas from the air supply pipe 38 is injected from the direction orthogonal to the surface of the work W.
  • the cooling gas from the air supply pipe 38 is injected from the direction orthogonal to the surface of the work W.
  • the processing chamber (19a, 19b) is divided into an upper processing chamber 19a and a lower processing chamber 19b by the work W bridged over the guide rollers (22a, 22b, 22c, 24).
  • the air supply pipe 38 and the exhaust ports 14a and 13a are arranged in each of the lower processing chamber 19b. Therefore, the cooling gas supplied to the upper processing chamber 19a and the cooling gas supplied to the lower cooling chamber 19b are promptly exhausted to the outside of the processing chamber (19a, 19b) together with the removed water. This also optimizes the flow of gas in the processing chambers (19a, 19b), and can improve the water removal efficiency of the work W.
  • the heaters (26a, 26b, 28) can adjust the wavelength region of the infrared rays emitted by selecting the infrared transmissive material forming the inner tube and the outer tube. Therefore, the heat treatment efficiency of the work W can be improved by adjusting the wavelength of the electromagnetic wave radiated according to the characteristics of the work W.
  • a solid content phenol / epoxy resin, 10 to 90 wt%
  • a solvent water or solvent (for example, IPA (isopropyl alcohol, NMP (N-methyl)) that makes the solid content into a slurry or paste form.
  • a heater (26a, 26b, 28) having a near-infrared wavelength selected is used in the first half of the heat treatment furnace 10.
  • the water or solvent may be dried, and in the latter half of the heat treatment furnace 10, annealing may be performed by a heater (26a, 26b, 28) having a far infrared wavelength selected.
  • the heaters (26a, 26b, 28) all radiate electromagnetic waves in the same wavelength region, but the present invention is not limited to such an example.
  • the wavelength of the electromagnetic wave radiated from the heaters (26a, 26b, 28) may be adjusted according to the position on the transport path. For example, when water is removed from the work W by the heat treatment furnace 10, the amount of water contained in the work W gradually decreases from the carry-in inlet 15a toward the carry-out port 16a. Therefore, by gradually increasing the wavelength of the electromagnetic wave radiated from the heaters (26a, 26b, 28) from the carry-in inlet 15a toward the carry-out port 16a, the work W is irradiated with the electromagnetic wave corresponding to the amount of water. Can be done.
  • the first heaters (26a, 26b) are arranged in the vicinity of the guide rollers (22a, 22b, 22c, 24), and the work W is heated by the first heaters (26a, 26b). It is not limited to such an example.
  • the work W may be heated by providing a flow path through which the heat medium flows inside the guide roller. Even with such a configuration, the heat balance of the work W in contact with the guide roller can be controlled, and the heat treatment efficiency of the work W can be improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Drying Of Solid Materials (AREA)
PCT/JP2020/006127 2020-02-17 2020-02-17 熱処理炉 Ceased WO2021166048A1 (ja)

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CN202080001224.8A CN113544452A (zh) 2020-02-17 2020-02-17 热处理炉
JP2020509562A JP6793875B1 (ja) 2020-02-17 2020-02-17 熱処理炉
EP20774866.6A EP3896375B1 (en) 2020-02-17 2020-02-17 Heat treatment furnace
PCT/JP2020/006127 WO2021166048A1 (ja) 2020-02-17 2020-02-17 熱処理炉
KR1020207022414A KR102266685B1 (ko) 2020-02-17 2020-02-17 열처리로
TW109131020A TWI751685B (zh) 2020-02-17 2020-09-10 熱處理爐

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CN114318731B (zh) * 2021-12-29 2022-11-01 吴江超翔织造有限公司 一种织物上浆热处理装置及方法
CN114941938B (zh) * 2022-04-19 2023-05-05 福建永荣锦江股份有限公司 一种化纤放置干燥装置及其方法

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TWI751685B (zh) 2022-01-01
KR102266685B1 (ko) 2021-06-21
TW202132739A (zh) 2021-09-01
EP3896375A1 (en) 2021-10-20
CN113544452A (zh) 2021-10-22
EP3896375B1 (en) 2026-02-18
JPWO2021166048A1 (https=) 2021-08-26
EP3896375A4 (en) 2021-12-01

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