• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Oven (1) with an endless baking belt (2) and a belt preheating device (11). The oven (1) has a front Bandumlenkstation (3), an input station (4), in a housing (5) arranged baking chamber, an output station (6) and a rear Bandumlenkstation (7). The upper run (2a) of the baking belt (2) extends from the front Bandumlenkstation (3) through the baking space to the rear Bandumlenkstation (7). The lower run (2b) of the baking belt (2) extends from the rear Bandumlenkstation (7) below the baking chamber to the front Bandumlenkstation (3). The belt preheating device (11) is arranged on the circulation path of the baking belt (2) outside the baking chamber. The baking belt (2) is designed as a susceptor which can be heated inductively up to a high belt preheating temperature. In the strip preheating device (11), a large-area inductor (13) of inductive strip preheating is arranged which, with the large-area magnetic field generated by it, inductively heats the baking strip (2) passing by without contact.
    公开号:AT511408A1
    申请号:T667/2011
    申请日:2011-05-11
    公开日:2012-11-15
    发明作者:
    申请人:Franz Haas Waffel Und Keksanlagen Ind Gmbh；
    IPC主号:
    专利说明:

    - 1 - R-No 49744
    Title: Oven with an endless baking band
    The invention relates to an oven with a continuous baking belt in the longitudinal direction of the oven, wherein a front Bandumlenksta-tion, an input station, a baking chamber, an output station and a rear Bandumlenkstation 5 are arranged one behind the other in the longitudinal direction of the oven. The upper strand of the baking band is arranged in an upper transport plane and extends from the front Bandumlenkstation through the input station, the baking chamber and through the output station to the rear Bandumlenkstation back. The lower strand of the baking band extends from the rear Bandumlenkstation below the baking chamber forward to the front Bandumlenkstation. The baking chamber is arranged in a housing provided with an external heat insulation and supported by a furnace rack. The oven is provided with a Bandvorwämneinrichtung which is arranged on the orbit of the baking belt outside the baking chamber.
    Baking ovens, where an endless baking belt runs in the longitudinal direction of the oven, are used in the food industry for the production of many baked goods. Such baked goods 15 are z. As flat biscuits, crispy crackers, but also biscuits, cakes, breads, bread, etc.
    For the production of baked goods are pieces of dough, which consist of a raw dough and have already been brought into the respective bakery appropriate form, fed to the oven. The dough pieces are placed at the input station on the baking belt and transported from the baking belt in the oven. In the oven, the dough pieces are baked. The baking belt conveys the baked dough pieces to the dispensing station. In the output station, the baked dough pieces are removed as finished baked goods from the baking belt. For the production of biscuits and crackers ovens are used, which are equipped with a belt preheating device in which the circulating baking belt is heated before it comes to the input station of the oven. In the input station, the raw dough pieces are placed on the heated or preheated baking belt. The raw dough pieces are heated by the preheated baking belt. The preheated dough pieces are transported from the baking belt in the oven back of the oven and exposed there high baking temperatures.
    In known ovens for the production of biscuits and crackers equipped with gas burners belt preheating devices are used, which are arranged in the oven rack below the baking chamber to -30 and are provided at least at the top with a thermal insulation. The heat insulation arranged on the upper side of the belt preheating device prevents the housing of the baking oven, which is arranged above the belt preheating device, from being heated from below, being heated by the heat generated in the belt preheating device. In the Bandvorwärmeinrichtung the baking belt is heated directly by the combustion gases of the gas burner. The interior space of the belt preheater is filled with hot combustion gases. The combustion gases of the gas burners are discharged via lateral exhaust ducts from the belt preheater.
    The object of the invention is to provide an improved oven, which has a circulating in the longitudinal direction of the oven, endless baking belt and is equipped with a Bandvorwärmeinrichtung. 40 As a solution, the invention proposes a new oven. This is indicated by a longitudinal direction i *. *. * ≪ * * -2- R-Nr 49744 of the oven, with continuous, endless baking belt. In the new oven, a front Bandumlenkstation, an input station, a baking chamber, an output station and a rear Bandumlenkstation are arranged in the longitudinal direction of the oven one behind the other. The upper strand of the baking belt is arranged in an upper transport plane and extends from the front 5 Bandumlenkstation through the input station, the baking chamber and through the output station to the rear Bandumlenkstation back. The lower strand of the baking band extends from the rear Bandumlenkstation below the baking chamber forward to the front Bandumlenkstation. The baking chamber is arranged in a housing provided with an external heat insulation and carried by a furnace rack. The new oven is provided with a Bandvorwärmeinrichtung, which is 10 arranged on the orbit of the baking belt outside the baking chamber.
    The new oven is characterized according to the invention by the following features. The baking belt is designed as a non-contact inductively heatable susceptor to the belt preheating temperature. The oven has an inductive band preheater, which is designed as an electric induction heater. The inductive band preheating has at least one in the Bandvorwärmeinein direction arranged large inductor, which is adjacent to the baking belt and the generated by him, large-area magnetic field passing past him, trained as a susceptor baking belt inductive heated to the Bandvorwärmtemperatur inductive and so produces the band preheating.
    The inventive oven has a non-contact inductively heatable susceptor 20 formed baking belt, which can be heated inductively up to the relatively high Bandvorwärmtemperatur. The belt preheating temperature is matched to the baking process to be implemented in the oven and is specified by this. The baking belt is inductively heated in the belt preheating device to the relatively high belt preheating temperature. The band temperature inductively produced in the band preheating device is chosen to be very high, so that the inductively heated, hot baking belt in the input station arrives at a strip temperature sufficient for heating the dough pieces placed on the hot baking band. The band section of the baking belt inductively heated in the belt preheating device is conveyed by the circulating movement of the baking belt to the input station of the baking oven. There, the raw dough pieces are placed on the hot band section and heated slightly by this, before they are transported from the baking belt in the oven chamber of the oven 30.
    In the embodiment of the oven according to the invention, the baking belt is heated inductive in the Bandvorwärmeinrichtung without contact and thereby heated inductively to the relatively high Bandvorwärmtemperatur. The inductive heating of the baking belt produces significantly lower room temperatures in the belt preheating device than the heating of the baking belt provided by the combustion gases of gas burners in the case of a conventional belt preheating device. The heat insulation required on the outside of the band preheating device can be significantly reduced in the oven according to the invention and thus made more cost-effective than in a conventional belt preheater equipped with gas burners.
    In the case of the oven according to the invention, the electric induction heating provided for the strip preheating can be carried out with a relatively high degree of efficiency (up to 0.79), which is clearly indicated by * * * * ♦ # * «'* * # ** - * * # * · * · - *. · · .. ·; '*: -3- ft-Nr49744 lays above the efficiency of a belt preheating using a gas burner (only 0.33).
    The inventive design of the oven allows the measured in the longitudinal direction of the baking belt length of Bandvorwärmeinrichtung, compared to a stocked with gas burners Bandvorwärmeinrichtung significantly reduced, because of the inventive oven in the Bandvorwärmeinrichtung arranged, large-scale inductor of the inductive band preheating for the inductive heating of the baking band a significantly shorter band section needed than the equipped with gas burners Bandvorwärmeinrichtung.
    The baking belt of the oven according to the invention is designed as a non-contact inductively heatable susceptor, which can be inductively heated to the relatively high belt preheating temperature. This susceptor belt can be designed differently.
    The susceptor belt may be formed as a wire-wound wire belt having a high mass density. The wire belt may be formed as a wire cloth belt, flat wire belt belt, multiple spiral belt, etc. In the case of the susceptor belt designed as a wire conveyor belt, the wire parts are arranged close to one another, the spaces between the wire parts are small and the cross section of the wire parts is relatively large. This results in a high mass density of the wire conveyor belt. For a susceptor belt designed as a wire conveyor belt, a minimum weight of 18 kg per meter of belt length is preferred. The trained as a wire conveyor belt susceptor belt may also have a higher band weight than 18 kg per meter tape length.
    The susceptor belt can also be designed as a plate belt having a high mass density. The plate band may be formed as a hinge plate band, or as an endless steel plate band whose steel plates are attached to lateral transport chains. In the case of the susceptor belt designed as a plate belt, the high mass density is achieved by the relatively large thickness of the plates made of iron or steel. In the case of the susceptor belt designed as a plate belt, a minimum weight of 18 kg per meter of belt length is preferred. The trained as a plate belt susceptor belt may also have a higher band weight of 20 kg per meter strip length and more.
    According to a further feature of the invention can be provided that a lower band preheating is provided, which is arranged at the lower strand of the baking belt and in which a large-scale inductor of the inductive strip preheating is arranged, which with the large-field magnetic field generated by him to him heated by passing inductor of the baking belt up to the Bandvorwärmtemperatur non-contact inductively and so produces the band preheating.
    According to a further feature of the invention can be provided that the arranged at the lower strand of the baking belt, containing a large-scale inductor of inductive band preheating, lower belt preheating is arranged below the input station of the oven.
    According to a further feature of the invention can be provided that the arranged at the lower strand of the baking belt, containing a large-scale inductor of the inductive belt preheater, lower belt preheating is arranged in the oven rack below the baking chamber,
    According to a further feature of the invention it can be provided that in the lower band preheating a arranged below the lower strand of the baking belt, large-scale inductor of the inductive band preheating is provided, which with the magnetic generated by him • + • χ · · * * > + * * * «* * * * * * * * 4 R-Nr 49744 field heats the lower run of the baking belt above it inductive up to the belt preheating temperature and thus produces the belt preheating.
    According to a further feature of the invention it can be provided that in the lower Bandvorwärmeinnchtcht above the lower strand of the baking belt a large-scale inductor of in-5 ductive strip preheating is arranged, which with the magnetic field generated by him passing below him lower strand of the baking belt except for The strip preheating temperature is inductively heated without contact, thus producing the strip preheating.
    According to a further feature of the invention it can be provided that in the lower Bandvorwärmeinnchtcht above and below the lower strand of the baking belt, a large-scale lü inductor of the inductive band preheating is provided, wherein the magnetic fields generated by the two inductors passing between the inductors lower strand of the baking belt up on The band preheating temperature is heated inductive by contactless means, thus producing the band preheating.
    According to a further feature of the invention can be provided that in the lower Bandvorwärmeinnchtung a C-shaped trained, the lower strand of the baking belt with horizontal 15 sections on top and bottom cross-over, large-scale inductor of the inductive band preheating is provided, which passes through the between its horizontal sections The lower strand of the baking belt is inductively heated non-contact up to the belt preheating temperature, thereby producing the belt preheating.
    According to a further feature of the invention it can be provided that in the lower 20 Bandvorwärmeinnchtung a the lower strand of the baking band encompassing, large-scale inductor of inductive strip preheating is provided, which laterally spaced from the side edges of the baking band, vertical sections and the top or the Has underside of the baking belt adjacent, horizontal sections, with only the horizontal sections of the inductor with the magnetic fields generated by these heat the passing through the inductor Untertrum 25 of the baking belt inductive up to the Bandvorwärmtemperatur inductive and so produce the band preheating.
    According to a further feature of the invention can be provided that an upper band preheating device is provided, which is arranged adjacent to the arranged in the input station portion of the baking belt and in which a large-scale inductor of the inductive band pre-heating is arranged, which with the of Magnetic field generated him as the susceptor ausgebil-ed baking belt inductive heated to the Bandvorwärmtemperatur contactlessly and so produces the band preheating.
    According to a further feature of the invention can be provided that the upper band preheating device includes a arranged below the baking belt, large-scale inductor of inductive 35 Bandvorheizung, which with the magnetic field generated by him passing above him designed as a susceptor baking belt up to the Bandvorwärmtemperatur Induction heated without contact, thus producing the strip preheating.
    According to a further feature of the invention, it can be provided that the baking belt designed as a susceptor, which can be heated inductively by means of an electric induction heater up to the belt preheating temperature, is a heavy baking belt with a high mass density, 5 * - * * * *. R-49744 belongs to the group consisting of: (1) wire belts, (2) wire belts, (3) round wire belts, (4) multiple spiral belts, (5) flat wire belts, and (6) hinge plate belts.
    The invention will be explained in more detail with reference to embodiments shown in the drawings.
    In the drawings show:
    1 is an oven from the side,
    2 shows another oven from the side,
    3 shows a third oven from the side,
    4 shows a fourth oven from the side, 10th
    5, a fifth oven from the side,
    6 is a plan view of the oven of FIG. 5th
    7 shows a first band preheating device with inductor in side view,
    8, the band preheating device of FIG. 7 in end view, FIG.
    9 shows the inductor of the belt preheating device of FIG. 7 in end view, 15. FIG
    10 shows a part of the inductor of FIG. 9 from above,
    11 shows the left-hand end section of the inductor of FIG. 9, FIG.
    FIG. 12 shows the right end section of the inductor of FIG. 9, FIG.
    13 shows a second belt preheating device with inductor in side view,
    14 shows the band preheating device of FIG. 13 in front view, 20. FIG
    15 shows the inductor of the belt preheating device of FIG. 13 in an end view, FIG.
    FIG. 16 shows a part of the inductor of FIG. 15 from above, FIG.
    Fig. 17, the left end portion of the inductor of Fig. 15, and
    FIG. 18 shows the right end section of the inductor of FIG. 15. FIG
    1 shows a baking oven 1 with an endless baking belt 2. In this oven 1 are arranged at its front end, front Bandumlenkstation 3, further an input station 4 and the baking chamber of the oven 1 containing, elongated housing 5, further an output station. 6 and arranged at the rear end of the oven 1, rear Bandumlenkstation 7 in the longitudinal direction of the oven 1 arranged one behind the other. 30 35
    The endless baking belt 2 runs in the oven 1 in the longitudinal direction. The upper strand 2a of the baking belt 2 is arranged in an upper transport plane and moves in this from the front Bandumlenkstation 3 to the input station 4 and then through the input station 3, through the arranged in the housing 5 baking chamber and through the output station 6 through to the rear Bandumlenkstation of the oven 1. The arranged below the upper strand 2a Untertrum 2b of the baking belt 2 moves from the rear Bandumlenkstation 4 of the oven 1 back to the front Bandumlenkstation 3 front of the oven. 1
    In the elongated housing 5, the baking chamber and the multiple heating elements 8 having oven heating of the oven 1 are housed. The housing 5 is provided with an outer heat insulation which extends over the entire length of the housing 5. The housing 5 is supported by the oven part 9 of the oven 1. The oven rack 9 has vertical feet 10 which are 40 * * - 6 * * * * * * *; '*' · R-Nr 49744 support the housing 5 at the place of installation of the oven 1 at the bottom. The feet 10 are arranged on the side edges of the housing 5 and form two extending in the longitudinal direction of the oven 1 Fußfußreihen. The lower run 2b of the baking belt 2 is arranged below the housing 1 between the two rows of stands. 5 During operation of the oven 1, the endless baking belt 2 runs in the longitudinal direction of the oven 1. In the input station 4 raw pieces of dough are placed on the upper strand 2a of the baking belt 2 and conveyed by the baking belt 2 through the baking chamber 5 arranged in the housing. In the oven, the dough pieces are baked. The circulating baking belt 2 conveys the baked dough pieces to the dispensing station 6 of the oven 1. In the dispensing station 6, the baked dough pieces are removed from the baking belt 2 as finished baked goods.
    The oven 1 has a arranged on the orbit of the baking belt 2 Bandvorwärm device 11 in which the device 11 passing baking belt 2 is heated to a relatively high belt temperature, so that the baking belt 2 comes in the heated state to the input station 4, then the raw dough pieces are placed on the already heated, hot baking band 2 15 and then heated by the hot baking belt 2. The heated by the hot baking belt 2, but still raw dough pieces are transported from the hot baking belt 2 in the heated by the oven heating chamber of the oven 1 to high baking temperatures baking chamber. The pre-heated on the hot baking belt 2 pieces of dough are baked ready when passing the oven. At the output station 6, the baked dough pieces are then removed as finished baked goods from the top strand 2a of the baking belt. In this way, in the oven 1 z. B. as crackers or hard biscuits baked goods are produced.
    The oven 1 has a Untertrum 2b of the back band 2 associated, lower band preheating 11. This is arranged at the front of the housing 5 in the space between the front Bandumlenkstation 3 and the housing 5 and heats the back band 2 at 25 its lower run 2b on. The heated, hot band portion of the baking belt 2 passes through the front Bandumlenkstation 3 and is transported by the orbital movement of the baking belt 2 in the input station 4.
    The baking belt 2 of the oven 1 is formed as an endless, by an electric induction heating contactless inductively heatable susceptor belt, which is inductively heated to high Bandtem-30 temperatures.
    The oven 1 is equipped with an inductive band preheater, which is designed as an electric induction heater. The electric induction heater provides an alternator 12, which is connected via power lines to a large-area inductor 13, which is arranged in the lower belt preheating device 11 and the lower strand 2 b of the baking belt 2 is heated inductive there by the large-area Mag-35 generated by it , The baking belt 2 is heated inductively in the lower belt preheating device 11 up to high belt temperatures. The high strip temperatures are in the range of z. B. predetermined by a cracker baking process, relatively high Bandvorwärmtemperaturen of xx to yy degrees Celsius.
    FIG. 2 shows a further baking oven 14 according to the invention, which largely corresponds in its structural design 40 to the oven 1 of FIG. ** ♦. -Γ - *** · * '· *' · * * · R-Nr 49744
    The oven 14, a front Bandumlenkstation 15, an input station 16, a baking chamber 17 and the baking chamber 18 containing elongated housing 19, an output station 20 and a rear Bandumlenkstation 21 arranged in the longitudinal direction one behind the other. The oven 14 has an endless baking belt 22 which rotates in the longitudinal direction of the oven 14 from the pre-5 dere Bandumlenkstation 15 to the rear Bandumlenkstation 21. The upper strand of the baking belt 22 is arranged in an upper transport plane and moves in this from the front Bandumlenkstation 15 to the input station 16 and then through the input station 16, through the arranged in the housing 19 baking chamber 17 and through the output station 20 to the rear Bandumlenkstation 21st 10 The oven 14 has a arranged between the front Bandumlenkstation 15 and the housing 19, lower Bandvorwärmeinrichtung 23. The circulating baking belt 22 passes with its lower run 22b, the lower belt preheating 23 and is heated there to high belt temperatures. The heated in the lower Bandvorwärmeinrichtung 23, hot band portion of the circulating baking belt 22 passes through the front Bandumlenkstation 15 and is conveyed by the circulation movement 15 of the baking belt 22 in the input station 16.
    The baking belt 22 is in the form of an endless susceptor belt which can be heated inductively by a non-contact induction heating and which can be heated inductively to high strip temperatures.
    The oven 14 is equipped with an inductive band pre-heating, which is designed as electrical induction heating 20. The electric induction heater provides an alternator 24, which is connected via power lines to a large-area inductor 25, which is arranged in the lower belt preheating device 23 and there heated with the generated large-area magnetic field, the baking belt 22 without contact inductively. The baking belt 22 is inductively heated by the inductor 25 or by the magnetic field generated by this up to high strip temperatures without contact. The generated by the electric induction heater via the inductor 25 in the back band 22, high strip temperatures are in the range of z. Ö. predetermined by a cracker baking process, relatively high belt preheating temperatures of xx to yy degrees Celsius.
    FIG. 3 shows a further oven 26 according to the invention. FIG. 3 shows the front section of the oven 26. The oven 26 has a rotating in its longitudinal direction, end-30 loose baking belt 27 with an upper run 27a and a lower run 27b. The oven 26 has a front Bandumlenkstation 28, an input station 29 and an adjoining the input station 29, elongated housing 30 in which the baking chamber 31 and the oven heating 32 are housed.
    The baking belt 27 is designed as an endless susceptor belt which can be heated inductively by an electric induction heater 35 and which can be heated inductively to high strip temperatures.
    The oven 26 is equipped with an inductive band preheater, which is designed as an electric induction heater. The AC generator of the induction heater is connected via power lines to a large-area inductor 33. The inductor 33 is arranged in a belt preheating device 34, which is located in the oven rack 35 below the housing 30 at the lower track section of the drum.
    »· · · T I I I -Ö1 · * " · · * * * R-Nr49744
    Orbit of the baking belt 27 is arranged. The belt preheating device 34 extends along the lower run 27b of the baking belt 27. It has a support frame 37 which is supported on the base 36 and carries the inductor 33 fixed in an electrically insulated manner on the support frame 37. The inductor 33 is disposed adjacent the lower run 27b of the baking belt 27. The lower strand 27b of the revolving-5 the baking belt 27 passes the large-area magnetic field generated by the inductor 33 and is thereby heated by this magnetic field without contact inductive to a high belt temperature.
    4 shows a further oven 38 according to the invention. FIG. 4 shows the front section of the oven 38. The oven 38 has an endless baking belt 39 running around in its longitudinal direction, with an upper run 39a and a lower run 39b. The oven 38 has a lü front Bandumlenkstation 40, an input station 41 and an adjoining the input station 41, elongated housing 42 in which the baking chamber and oven heating chamber of the oven 38 are housed.
    The baking belt 39 is designed as an endless susceptor belt which can be heated inductively by a non-contact induction heater and which can be heated inductively to high belt temperatures.
    The oven 38 is equipped with an inductive band preheating, which is ausgebiidet as electrical induction heating. The AC generator of the induction heater is connected via power lines to a large-scale inductor 43. The inductor 43 is disposed in an upper belt preheater 44 which is disposed in the input stage 41 of the oven 38 adjacent the upper run 39a 20 of the back belt 39. The upper run 39a of the baking belt 39 passes through the large-area magnetic field generated by the inductor 43 and is heated inductively by this magnetic field up to a high belt temperature.
    5 and 6 show a further oven 45 according to the invention. FIG. 5 shows a side view of the oven 45 and FIG. 6 shows a top view of the oven 45. FIGS. 5 and 6 show the front portion of the oven 45. This has a rotating in its longitudinal direction, endless back band 46 with an upper run 46a and a lower run 46b. The oven 45 has a front Bandumlenkstation 47, an input station 48 and an adjoining the input station 48, elongated housing 49, in which the baking chamber and the oven heating chamber are housed. The baking belt 46 is designed as an endless susceptor belt which can be heated inductively by a non-contact induction heating and which can be heated inductively to high belt temperatures.
    The oven 45 is equipped with an inductive band preheater, which is designed as an electric induction heater. The induction heating AC generator is connected via power lines to a large area inductor 50 disposed in a lower belt preheater 51 disposed between the front belt redirecting station 47 and the housing 49. The circulating baking belt 46 passes with its lower run 46b, the lower belt preheating 51 and is heated by the inductor 50 generated, large-scale magnetic field to a high band temperature without contact inductively. 40 Figures 7-12 show an embodiment of a lower belt preheater 52 for a-erfindungsgemäßen -... R-Nr 49744 oven according to the invention. The Bandvorwärmeinrichtung 52 has a support frame 53 which is supported by wheels 54 on the floor 55, which is the oven. At the top of the support frame 53, a large-scale inductor 56 is arranged, which is fixed electrically insulated on the support frame 53. The inductor 56 is connected via power lines to an outside of the Bandvorwärmeinrichtung 5 52 arranged AC generator of an electric induction heater, which is designed as inductive band preheating for the oven. The inductor 56 is formed as an electric induction coil having substantially rectangular, the flat baking belt 57 encompassing turns, which are arranged in the longitudinal direction of the baking belt 57 at a distance one behind the other. The inductor 56 has laterally spaced from the side edges of the baking belt 57, 10 vertical sections 58, 59 and the top and the bottom of the baking belt 57 adjacent horizontal sections 60, 61. The passing through the inductor 56 baking belt 57 is through The magnetic fields generated by the horizontal sections 60, 61 of the inductor are heated inductively without contact. The lateral distances of the vertical sections 58, 59 of the inductor from the side edges of the baking belt 57 are quite large. The magnetic fields generated by the vertical sections 58, 59 of the Induk-15 sector lead to no significant heating of the side edges of the baking belt 57th
    FIGS. 13-18 show a further embodiment of a lower belt preheating device 62 for a baking oven according to the invention. This band preheating device 62 also has a support frame 63 which is supported by wheels 64 on the floor 65 on which the oven stands. At the top 20 of the support frame 63, a large-area, substantially C-shaped inductor 66 is arranged, which is fixed electrically insulated on the support frame 63. The inductor 66 has an upper and a lower horizontal portion 67, 68, with which the inductor 66 engages over the flat baking belt 69 of the oven at the top or on the bottom. At the right side edge of the inductor 66, the upper horizontal portion 67 of the inductor 66 is connected to the lower horizontal portion 25 68 of the inductor 66 through a vertical portion 70 of the inductor 66. The left side edge of the inductor 66 is open. The two horizontal sections 67, 68 of the inductor 66 are each formed as a flat electrical induction coil. 30
    权利要求:
    Claims (9)
    [1]
    • I * * * ·. * * * * ·· 4 t ί > 49744 Claims: An oven (1, 14) having a longitudinal axis of the oven (1, 14) , endless baking belt (2, 15), wherein in the longitudinal direction of the oven (1, 14) a front Bandumlenkstati-on (3, 15), an input station (4, 16), a baking chamber (17), an output station (6, 20 ) and a rear Bandumlenkstation (7, 21) are arranged one behind the other, wherein the upper strand (2a, 15a) of the baking belt (2, 15) is arranged in an upper transport plane and from the front Bandumlenkstation (3, 15) through the input station ( 4.16), the baking chamber (17) and through the output station (6, 20) to the rear to the rear Bandumlenkstation (7, 21) extends and the lower run (2b, 15b) of the baking belt {2, 15) from the rear Bandumlenkstation (7, 21) extends below the baking space (17) forwardly to the front belt deflection station (3, 15), the baking space (17) being provided with an outer heat insulation in one en, by a furnace rack (9) supported housing (5, 19) is arranged and the oven (1, 14) with a Bandvorwärmeinrichtung (11,23) is provided on the orbit of the baking belt (2, 15) outside the baking chamber (17) is arranged, characterized in that a baking belt (2,15) is provided, which is designed as a non-contact inductively heatable up to the Bandvorwärmtemperatur susceptor, and that as electrical induction heating (12,13, 24, 25) formed , Inductive band preheating is provided, which has at least one in the Bandvorwärmeinrichtung (11,23) arranged, large-area inductor (13, 25), which is arranged adjacent to the baking belt (2,15) and with the large-area magnetic field generated by him him passing baking belt (2, 15) heated inductive to the Bandvorwärmtemperatur non-contact, thus producing the band preheating. Baking oven according to claim 1, characterized in that a lower Bandvorwärmeinrichtung (11,23) is provided, which at the lower strand (2b, 15b) of the baking belt (2, 15) is arranged and in which a large-area inductor (13, 25) of the inductive Band preheater is arranged, which with the large-area magnetic field generated by him, the lower strand running past him (2b, 15b) of the baking belt (2, 15) up to the Bandvorwärmtemperatur inductive heated and thus generates the belt preheating. Baking oven according to claim 2, characterized in that at the lower strand (2b, 15b) of the baking belt (2, 15) arranged, a large-area inductor (13, 25) of the inductive band preheating containing, lower belt preheating device (11,23} below the input station ( 4, 16) of the oven (1, 14) Oven according to claim 2, characterized in that the lower belt (27b) of the baking belt (27) arranged, a large-scale inductor (33) of the inductive belt preheating containing, lower belt preheating ( 34) is arranged in the oven rack (35) below the baking chamber (31). • · - 1 * 1'- ** * ** '* R-Nr 49744
    [2]
    5. Baking oven according to one of claims 2-4, characterized in that in the lower band preheating a arranged below the lower strand of the baking belt, large-scale inductor of the inductive strip preheating is provided, which with the magnetic field generated by him passing above him Untertrum of the baking belt is inductively heated without contact up to the belt preheating temperature, thus producing the belt preheating.
    [3]
    6. Baking oven according to one of claims 2-4, characterized in that in the lower band preheating above the lower strand of the baking belt, a large-scale inductor of the inductive band preheating is arranged, which with the magnetic field generated by him 10 passing below him lower strand of the Baking bands inductive heated up to the Bandvorwärmtempera-tur and thus produces the belt preheating.
    [4]
    7. Baking oven according to one of claims 2-4, characterized in that in the lower band preheating above and below the lower strand of the baking belt, a large area 15 inductor of the inductive band preheating is provided, wherein the magnetic fields generated by the two inductors that between the inductors continuously heat the continuous lower run of the baking belt inductive up to the belt preheating temperature and thus produce the belt preheating.
    [5]
    8. Baking oven according to one of claims 2-4, characterized in that in the lower band preheating (62) a C-shaped, the lower strand of the baking belt (69) with horizontal sections (67, 68) on top and bottom cross-over , large-area inductor (66) of the inductive strip preheating is provided, which heats the between its horizontal sections (67, 68) continuous strand of the baking belt (69) to the Bandvor- 25 temperature without contact inductively and so generates the strip preheating.
    [6]
    9. oven according to any one of claims 2-4, characterized in that in the lower band preheating (52) a the lower strand of the baking belt (57) encompassing, large-scale inductor (56) of the inductive band preheating is provided, which laterally at a distance of 30, the horizontal edges (60, 61) arranged adjacent to the side edges of the baking belt (57), vertical portions (58, 59) and each of the top and the bottom of the baking belt (57), wherein only the horizontal portions (60, 61 ) of the inductor (56) with the magnetic fields generated by them by the inductor (56) running therethrough lower strand of the baking belt (57) to the band preheating non-contact inductively heat and so 35 produce the belt preheating.
    [7]
    10. oven according to claim 1, characterized in that an upper Bandvorwärmeinrich-device (44) is provided, which is arranged adjacent to the in the input station (41) portion of the baking belt (39) and in which a large-area inductor (43) of Inductive 40 band preheating is arranged, which with the magnetic field generated by him as Sus- • »• * * (» 4 · · ·

    R-Nr 49744 zeptor trained baking belt (39) heated inductive to the band preheating temperature without contact and thus produces the band preheating.
    [8]
    11. Oven according to claim 10, characterized in that the upper Bandvorwärmeinrich-device (44) comprises a below the baking belt (39) arranged, large-area inductor (43) of the inductive strip preheating, which with the magnetic field generated by him passing above him formed as a susceptor baking belt (39) heated inductive contact up to the Bandvorwärmtemperatur and so produces the band preheating.
    [9]
    12. Oven according to one or more of claims 1-11, characterized in that the trained as a susceptor, by means of an electric induction heating up to the Bandvorwärmtemperatur non-contact inductively heatable baking belt (2, 22,27, 39, 46, 57, 69) a high mass density heavyweight belt selected from the group consisting of: (1) wire belts, (2) wire belts, (3) round wire belts, (4) multiple spiral belts, (5) flat wire belts, and (6) hinge plate belts. Vienna, am

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    同族专利:
    公开号 | 公开日
    AT511408B1|2017-04-15|
    BR112013018838A2|2019-09-24|
    RU2013154372A|2015-06-20|
    WO2012152655A1|2012-11-15|
    EP2708095A1|2014-03-19|
    KR20140031311A|2014-03-12|
    US20140352550A1|2014-12-04|
    AR086329A1|2013-12-04|
    CN103703866A|2014-04-02|
    JP2014513970A|2014-06-19|
    引用文献:
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    US2143525A|1936-04-30|1939-01-10|Fred G Salerno|Baking oven|
    JPS5638164B2|1979-05-25|1981-09-04|
    US4554437A|1984-05-17|1985-11-19|Pet Incorporated|Tunnel oven|
    MX163709B|1985-04-19|1992-06-15|Fausto Celorio Mendoza|IMPROVEMENTS IN OVENS TO PREPARE FRIED PRODUCTS|
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    US5338765A|1993-11-23|1994-08-16|Schuller International, Inc.|Method of and apparatus for continuously foaming a polyimide powder|
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    JP2001088930A|1999-09-20|2001-04-03|Matsushita Electric Ind Co Ltd|Conveyor and heating furnace using it|
    JP2001257138A|2000-03-09|2001-09-21|Matsushita Electric Ind Co Ltd|Device for curing material for electronic parts|
    CN1284417C|2001-07-04|2006-11-08|味之素株式会社|Heating device and heating stabilizer used on same|
    JP2003009756A|2001-07-04|2003-01-14|Ajinomoto Co Inc|Food heating apparatus|
    JP3932953B2|2002-04-03|2007-06-20|味の素株式会社|Heat stabilization device in heating device|
    AT506418B1|2008-02-12|2010-02-15|Haas Franz Waffel & Keksanlagen Industrie Gmbh|OVEN WITH INDUCTION HEATING|
    JP2011018511A|2009-07-08|2011-01-27|Nakai:Kk|Electromagnetic induction heater|US11147279B2|2015-04-30|2021-10-19|Casa Herrera, Inc.|Mini taco oven|
    ITUB20160151A1|2016-01-18|2017-07-18|Itt Italia Srl|OVEN TO CARRY OUT THERMAL TREATMENTS OF FRICTION ELEMENTS, IN PARTICULAR BRAKE PADS, AND ASSOCIATED METHOD|
    FR3048584B1|2016-03-11|2018-10-26|Mecatherm|APPLICATION OF A MATERIAL FOR THE PRODUCTION OF SUPPORT PLATES OF BAKERY PRODUCTS, VIENNOISERIES, PASTRY OR SIMILAR PRODUCTS, SUPPORT PLATES FOR SUCH PRODUCTS AND INDUSTRIAL PRODUCTION PLANTS USING SUCH SUPPORT PLATES|
    CN112998039A|2021-03-11|2021-06-22|丽水市炉麦烧餐饮管理有限公司|Flour cake machine and cake making method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA667/2011A|AT511408B1|2011-05-11|2011-05-11|OVEN WITH A FINAL BACKBAND|ATA667/2011A| AT511408B1|2011-05-11|2011-05-11|OVEN WITH A FINAL BACKBAND|
    BR112013018838A| BR112013018838A2|2011-05-11|2012-05-03|continuous belt oven for baking|
    US14/116,408| US20140352550A1|2011-05-11|2012-05-03|Baking oven comprising a continuous baking belt|
    RU2013154372/13A| RU2013154372A|2011-05-11|2012-05-03|OVEN CONTAINING BAKING TAPE OF CONTINUOUS ACTION|
    PCT/EP2012/058137| WO2012152655A1|2011-05-11|2012-05-03|Oven comprising a continuous baking belt|
    CN201280022692.9A| CN103703866A|2011-05-11|2012-05-03|Oven comprising a continuous baking belt|
    JP2014509679A| JP2014513970A|2011-05-11|2012-05-03|Oven with endless baking conveyor|
    EP12720138.2A| EP2708095A1|2011-05-11|2012-05-03|Oven comprising a continuous baking belt|
    KR1020137032963A| KR20140031311A|2011-05-11|2012-05-03|Oven comprising a continuous baking belt|
    ARP120101639A| AR086329A1|2011-05-11|2012-05-10|BAKERY OVEN WITH SINFIN COOKING TAPE|
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