CN112639383A - 辊底式炉 - Google Patents

辊底式炉 Download PDF

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Publication number
CN112639383A
CN112639383A CN201980050970.3A CN201980050970A CN112639383A CN 112639383 A CN112639383 A CN 112639383A CN 201980050970 A CN201980050970 A CN 201980050970A CN 112639383 A CN112639383 A CN 112639383A
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furnace
scale
rollers
roller
transport direction
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B·金切尔
K·赫恩
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SMS Group GmbH
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SMS Group GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B2009/3072—Balancing the pressure between the upper part and the lower part of the kiln, above and under the track

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

本发明涉及一种辊底式炉、尤其窄扁锭设备的隧道式炉，其包括为了运输带材或扁锭沿运输方向(T)彼此间隔布置的经冷却的多个炉辊(1)和布置在炉辊(1)之下的氧化皮漏斗(2)，炉辊在能转动地支承的轴上具有多个支承环并且在两个支承环之间的轴向区域中以及在每个外部的支承环旁边都构造有由高绝缘的纤维材料制成的绝缘体。为了显著降低氧化皮或氧化皮颗粒对炉辊的用于隔离的纤维材料的不利影响并由此提高炉辊的使用寿命，根据本发明，在沿运输方向(T)依次接续的每两个炉辊(1)之间的自由空间中设有如炉辊(1)一样横向于运输方向(T)延伸的氧化皮拦截件(4)。

Description

辊底式炉
技术领域
本发明涉及一种辊底式炉、尤其窄扁锭设备的隧道式炉，其包括为了运输带材或扁锭沿运输方向彼此间隔布置的经冷却的多个炉辊和布置在炉辊之下的氧化皮漏斗，炉辊在能转动地支承的轴上具有多个支承环并且在两个支承环之间的轴向区域中以及在每个外部的支承环旁边都构造有由高绝缘的纤维材料制成的绝缘体。
背景技术
这种在支承环之间以及在支承环旁边设有绝缘体的炉辊由WO 2018/059940 A1已知。辊底式炉以及布置在炉辊之下的氧化皮漏斗例如通过JP 64075887 A已知。
辊底式炉或隧道式炉的具有运输带材或扁锭的支承环的已知炉辊具有水冷却装置，以便保护炉辊免受高温以及防止与此相关地提前失效。伴随与此的炉散热以及在炉内的高的能量消耗在炉辊中经由支承轴的设置在支承环旁边和支承环之间的由纤维材料制成的隔热体被降低。
此外，隔热体一方面不可不允许地冷却热处理物料、带材和扁锭并且另一方面不可不允许地加热炉辊的支承轴。
具有由例如耐火的高绝缘的纤维材料或纤维羊毛制成的隔热体的炉辊比现有技术中已知的具有由混凝土制成的更耐抗的隔热体具有显著更低的重量，其中，纤维材料或耐火羊毛优选是氧化铝和/或氧化硅。
在纤维隔热的炉辊中已经发现不利的是，高度绝缘的纤维材料或纤维羊毛被周围飞散的氧化皮或氧化皮颗粒侵蚀并且逐渐地被剥蚀或破坏。随之使得隔热体以及炉辊和支承环必须提前被更换。
在辊底式炉具有布置在隔热的炉辊之下的氧化皮漏斗的情况下，在运输带材或扁锭时通过支承环剥除的且在炉辊附近区域中飞散的氧化皮被氧化皮漏斗捕获并且在氧化皮漏斗中收集直至暂时回收。
发明内容
因此本发明的目的是，为这种类型的辊底式炉提供一种装置，该装置能显著降低氧化皮或氧化皮颗粒对纤维材料或纤维羊毛的不利影响并由此能提高纤维隔热的炉辊的使用寿命。
根据本发明，该目的通过以下方式实现，即在沿运输方向依次接续的每两个炉辊之间的自由空间中设有如炉辊一样横向于运输方向延伸的氧化皮拦截件。
由此有利地实现，在运输时从热处理物料上剥除的且飞散的氧化皮被氧化皮拦截件捕获并且导出到分别位于其下方的氧化皮漏斗中。因此，氧化皮不再能够破坏性地进入到分别相邻的炉辊的绝缘的纤维材料中或绝缘的纤维羊毛中，由此提高了隔热体的使用寿命以及伴随地提高了隔热的炉辊的使用寿命。同时长时间地确保辊底式炉或隧道式炉节省能量。
术语“与其中一个支承环轴向间隔开”尤其是指在两个支承环之间的轴向区域中和/或在其中至少一个外部的支承环的轴向旁边。
本发明的优选的设计方案是，氧化皮拦截件构造成杆状并且由耐热材料制成。通过氧化皮拦截件的杆状构造有利于在分别相邻的炉辊之间的简单制造和布置。杆状的氧化皮拦截件优选由钢或耐火材料制成或铸造成成型件。
根据本发明的建议，氧化皮拦截件布置或固定在限制氧化皮漏斗的漏斗壁上和/或自支承地布置或固定在氧化皮漏斗之上。
根据另一设计方案，氧化皮拦截件与运输的物料无接触地大致在炉辊的运输平面之下终止。由此没有氧化皮拦截件的损伤性机械作用引起到带材或扁锭的与其面对的表面上，而是仅将剥除的氧化皮或氧化皮颗粒捕获和导出到氧化皮漏斗中。
附图说明
本发明的其他特征和细节从权利要求和下面对在附图中示出的实施例的描述中得出。
具体实施方式
唯一的附图以示意图示出了经冷却的炉辊1的布置，炉辊设置在未示出的辊底式炉或隧道式炉中。炉辊1沿运输方向T将热处理物料，例如带材或扁锭运输通过辊底式炉或隧道式炉。
炉辊1的具体构造如由WO 2018/059940 A1中所知，即炉辊的支承轴设有由纤维材料或纤维羊毛制成的隔热体。
在炉辊1之下设有氧化皮漏斗2，氧化皮漏斗通过由耐火材料制成的漏斗壁3限定。
在炉辊1之间的自由空间中设有横向于运输方向T延伸的构造成杆状的氧化皮拦截件4。在此，氧化皮拦截件一端布置在漏斗壁3上并且另一端自支承地、即借助固定件分别在其杆端部上设置在氧化皮漏斗2之上，其中，氧化皮拦截件4与运输的热处理物料无接触地大致在炉辊1的运输平面5之下终止，由此在运输平面5和氧化皮拦截件4的上棱边之间仅有非常小的竖直间隙。
氧化皮拦截件4由钢或耐火材料制成或铸造为成型件。
在借助炉辊1将热处理物料运输通过辊底式炉或隧道式炉时，氧化皮从热处理物料上脱落，然后氧化皮在炉辊1的附近区域中飞散并且侵蚀或破坏炉辊1的由纤维材料或纤维羊毛制成的绝缘体。
这通过氧化皮拦截件4来防止，因为飞散的氧化皮或氧化皮颗粒被氧化皮拦截件4截获并且导出到分别位于其下方的氧化皮漏斗2中，由此使得氧化皮高效地保持远离分别位于氧化皮拦截件4旁边的炉辊1。
此外通过使杆状的氧化皮拦截件4在其横向于运输方向T的纵向侧上构造有向下朝向氧化皮漏斗2锥形逐渐变窄的斜面还辅助通过氧化皮拦截件4将氧化皮或氧化皮颗粒导出到氧化皮漏斗2中。
在氧化皮漏斗2中收集的氧化皮可分别经由设置在氧化皮漏斗2的下端上的氧化皮门6回收。
附图标记列表
1 炉辊
2 氧化皮漏斗
3 漏斗壁
4 氧化皮拦截件
5 运输平面
6 氧化皮门
T 运输方向

Claims (4)

1.一种辊底式炉、尤其窄扁锭设备的隧道式炉，包括为了运输带材或扁锭沿运输方向(T)彼此间隔布置的经冷却的多个炉辊(1)和布置在所述炉辊(1)之下的氧化皮漏斗(2)，所述炉辊在能转动地支承的轴上具有多个支承环并且与其中一个支承环轴向相邻地构造有由高绝缘的纤维材料制成的绝缘体，其特征在于，在沿运输方向(T)依次接续的每两个炉辊(1)之间的自由空间中设有如所述炉辊(1)一样横向于所述运输方向(T)延伸的氧化皮拦截件(4)。
2.根据权利要求1所述的辊底式炉，其特征在于，所述氧化皮拦截件(4)构造成杆状并且由耐热材料制成。
3.根据权利要求1或2所述的辊底式炉，其特征在于，所述氧化皮拦截件(4)布置在限制所述氧化皮漏斗(2)的漏斗壁(3)上和/或自支承地布置在所述氧化皮漏斗(2)之上。
4.根据权利要求1至3中任一项所述的辊底式炉，其特征在于，所述氧化皮拦截件(4)与运输的物料无接触地大致在所述炉辊(1)的运输平面(5)之下终止。
CN201980050970.3A 2018-07-30 2019-07-26 辊底式炉 Pending CN112639383A (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102018212703.4 2018-07-30
DE102018212703 2018-07-30
DE102018219927.2A DE102018219927A1 (de) 2018-07-30 2018-11-21 Rollenherdofen
DE102018219927.2 2018-11-21
PCT/EP2019/070183 WO2020025478A1 (de) 2018-07-30 2019-07-26 Rollenherdofen

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CN112639383A true CN112639383A (zh) 2021-04-09

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US (1) US20210318067A1 (zh)
EP (1) EP3830507B1 (zh)
KR (1) KR20210038623A (zh)
CN (1) CN112639383A (zh)
DE (1) DE102018219927A1 (zh)
RU (1) RU2769705C1 (zh)
WO (1) WO2020025478A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059093A1 (en) * 1981-02-23 1982-09-01 Encomech Product Development Limited Heat shields
JPS63189779A (ja) * 1987-01-30 1988-08-05 大同特殊鋼株式会社 ロ−ラハ−ス式加熱炉における保全装置
JPS6475887A (en) * 1987-09-14 1989-03-22 Daido Steel Co Ltd Roller hearth type heating furnace
CN1152483A (zh) * 1995-09-13 1997-06-25 丹尼利机械厂联合股票公司 均衡含受控氧化环境加热炉温度的方法及实施它的加热炉
US5699694A (en) * 1995-05-26 1997-12-23 Encomech Engineering Services Ltd. Heat shields
US5704783A (en) * 1994-03-31 1998-01-06 Thermoprocess Gmbh Walking hearth furnace
US5711175A (en) * 1994-04-12 1998-01-27 Encomech Engineering Services Ltd. Heat shields for roller tables
DE69313627T2 (de) * 1992-02-24 1998-03-12 Bricmont Inc Isolierte ofenrolle und herstellungsverfahren dafür
CN105764624A (zh) * 2013-11-12 2016-07-13 Sms集团有限公司 用于处理被加热的材料的方法
WO2018059940A1 (de) * 2016-09-27 2018-04-05 Sms Group Gmbh Kühlbare ofenrolle und verfahren zum betrieb einer solchen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU392313A1 (ru) * 1968-09-17 1973-07-27 Каркас секционной печи скоростного нагрева металла
SU1229537A1 (ru) * 1983-12-26 1986-05-07 Липецкий политехнический институт Проходна роликова печь дл нагрева металла
SU1765655A1 (ru) * 1990-02-16 1992-09-30 Производственное объединение "Ижсталь" им.50-летия СССР Туннельна печь дл термической обработки изделий

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059093A1 (en) * 1981-02-23 1982-09-01 Encomech Product Development Limited Heat shields
JPS63189779A (ja) * 1987-01-30 1988-08-05 大同特殊鋼株式会社 ロ−ラハ−ス式加熱炉における保全装置
JPS6475887A (en) * 1987-09-14 1989-03-22 Daido Steel Co Ltd Roller hearth type heating furnace
DE69313627T2 (de) * 1992-02-24 1998-03-12 Bricmont Inc Isolierte ofenrolle und herstellungsverfahren dafür
US5704783A (en) * 1994-03-31 1998-01-06 Thermoprocess Gmbh Walking hearth furnace
US5711175A (en) * 1994-04-12 1998-01-27 Encomech Engineering Services Ltd. Heat shields for roller tables
US5699694A (en) * 1995-05-26 1997-12-23 Encomech Engineering Services Ltd. Heat shields
CN1152483A (zh) * 1995-09-13 1997-06-25 丹尼利机械厂联合股票公司 均衡含受控氧化环境加热炉温度的方法及实施它的加热炉
CN105764624A (zh) * 2013-11-12 2016-07-13 Sms集团有限公司 用于处理被加热的材料的方法
WO2018059940A1 (de) * 2016-09-27 2018-04-05 Sms Group Gmbh Kühlbare ofenrolle und verfahren zum betrieb einer solchen

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EP3830507B1 (de) 2022-10-19
US20210318067A1 (en) 2021-10-14
RU2769705C1 (ru) 2022-04-05
KR20210038623A (ko) 2021-04-07
EP3830507A1 (de) 2021-06-09
WO2020025478A1 (de) 2020-02-06
DE102018219927A1 (de) 2020-01-30

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Application publication date: 20210409