CN102534179B - Continuous tunnel type annealing furnace structure with heating bottom resistor - Google Patents
Continuous tunnel type annealing furnace structure with heating bottom resistor Download PDFInfo
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- CN102534179B CN102534179B CN201210002686.9A CN201210002686A CN102534179B CN 102534179 B CN102534179 B CN 102534179B CN 201210002686 A CN201210002686 A CN 201210002686A CN 102534179 B CN102534179 B CN 102534179B
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Abstract
The invention discloses a continuous tunnel type annealing furnace structure with a heating bottom resistor. The furnace bottom of the continuous tunnel type annealing furnace has a refractory brick building structure; the refractory brick building structure consists of a plurality of grooves; resistance bands are embedded into the grooves; and a plurality of longitudinal ribs consistent with the moving direction of metal strips treated in the furnace are arranged above the resistance bands. The structure is paved at the bottom of the continuous tunnel type annealing furnace, a furnace bottom roller is arranged on the structure, and the metal strips treated in the furnace are annealed, so the continuous tunnel type annealing furnace structure has high thermal efficiency and low investment, and is simple and convenient to construct, reliable to operate and convenient to maintain.
Description
Technical field
The present invention relates to the continuous tunnel formula annealing furnace structure of a kind of bottom electrical stopband heating, be widely used in the heat treated stove internal structures such as sheet metal strip continuous annealing.
Background technology
In order to the performance improving sheet metal strip and the thickness making band reach required, sheet metal strip is extensively carried out the cold rolling of multi-pass heavy reduction, but due to sheet metal strip through multi-pass heavy reduction cold rolling after, can cold working hardening be produced, so, before product made by sheet metal strip, must anneal in stove, to eliminate cold working hardening, not so, sheet metal strip because of hardness high, plasticity is poor, and follow-up various processing cannot be carried out.
Continuous tunnel type annealing furnace heats the energy used to be had multiple, as coal gas, oil, Sweet natural gas and electricity etc.Wherein because electric energy the most easily obtains, easy to control, and pollution-free, be widely used.
The electrically heated form of continuous tunnel type annealing furnace generally has: be layered on furnace bottom with naked the setting level of resistive band, direct heating burner hearth; Be layered on furnace bottom with naked the setting level of resistive band, above resistive band, protecting sheet be installed, resistive band heated protective plate, by the heat radiation heating furnace thorax of protecting sheet; Be placed in metal tube with resistive band, heating metal pipe, by the heat radiation heating furnace thorax of metal tube.
Although tunnel type annealing furnace is feasible by electrically heated form continuously above, shortcoming is a lot, is now presented below respectively:
Furnace bottom is layered on naked the setting level of resistive band, the method of direct heating burner hearth, though thermo-efficiency is high, but because of a variety of causes, sheet metal strip processed in stove is caused usually to be pulled off, after sheet metal strip processed in stove is pulled off, it is taken the lead to encounter naked setting level and is layered on the resistive band of furnace bottom, makes resistive band short circuit and trips.In addition, sheet metal strip processed in stove break after take the lead to catch on and nakedly set level the resistive band being layered on furnace bottom, resistive band is drawn race.
Be layered on furnace bottom with naked the setting level of resistive band, above resistive band, protecting sheet be installed, resistive band heated protective plate, by the method for the heat radiation heating furnace thorax of protecting sheet, its thermo-efficiency is low, investment is large, maintenance difficult.
Be placed in metal tube with resistive band, heating metal pipe, by the method for the heat radiation heating furnace thorax of metal tube, except thermo-efficiency is low, investment large except, also have usual fire box temperature high, at high temperature can there is creep and sink in metal radiation pipe, cause burner hearth tunnel be blocked and can not produce, running cost is high.
Sum up above-mentioned, existing bottom construction can not make resistive band have good fixed effect under the condition of least cost, can not play the thermo-efficiency of optimum metal annealing, the annealing temperature that namely metal is suitable.And the improvement adjusting bottom construction also has no Patents document reports.
Summary of the invention
The invention provides the continuous tunnel formula annealing furnace structure of a kind of bottom electrical stopband heating, the technical problem of solution is the thermo-efficiency resistive band of furnace bottom being fixed well and playing optimum sheet metal strip simultaneously, and cost is lower, easy to maintenance.
The present invention is realized by following technical scheme:
A continuous tunnel formula annealing furnace structure for bottom electrical stopband heating is laying fireproof bricks structure at the bottom of described continuous tunnel formula annealing furnace; Described laying fireproof bricks structure is made up of several grooves, described inside grooves embedded resistor band, builds some lengthways of rod consistent with metal to be treated ribbon motion direction in stove above resistive band by laying bricks or stones.
Described resistive band at the embedded mode of inside grooves is: centered by the groove walls of resistive band in the middle of every two adjacent grooves, become symmetric curvature arrangement, the positive and negative electrode at resistive band two ends extends outside described tunnel annealing furnace furnace wall from the homonymy of two grooves respectively.
The refractory brick groove of building by laying bricks or stones with structure of the present invention, can make flexible electrical stopband keep shape and invariant position in whole annealing process, is equivalent to the fixing part providing a kind of resistive band shape and structure; And according to the flexible characteristic on the alloy of resistive band or metal material and surface, be the thermo-efficiency releasing structure of optimum sheet metal strip with bending arrangement mode energized structural, this structure of the present invention can make that sheet metal strip is complete completes annealing process rapidly.
Spacing between described lengthways of rod is 200 ~ 250mm.
The material of described lengthways of rod is attached most importance to refractory brick, and proportion is 1.0 ~ 1.2, and cross dimensions is long 60 ~ 70mm, wide 60 ~ 70mm.
In described stove, metal to be treated band proportion is 7.0 ~ 8.0, and width is 600 ~ 700mm, and thickness is 0.285 ~ 0.63mm.
Beneficial effect of the present invention is:
1, the resistive band whole process structure of annealing at sheet metal strip and dimensionally stable, homo(io)thermism;
2, annealing process ensures that metal belt structure is complete, and sheet metal strip spoilage is low, and resistive band thermo-efficiency is high, and annealing furnace maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is the sectional elevation schematic diagram of the contact tunnel annealing furnace structure of a kind of bottom electrical stopband heating of the present invention
Fig. 2 is the A-A cross section view in Fig. 1
D1 is the width of each groove, D2 be in each groove resistive band shaping after width, D3 is the width of burner hearth, and D4 is lengthways of rod spacing.
Fig. 3 is the B-B cross section view in Fig. 2
D5 is the degree of depth of groove, and D6 is resistive band height.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As depicted in figs. 1 and 2, the present invention is the continuous tunnel formula annealing furnace structure of a kind of bottom electrical stopband heating, laying fireproof bricks structure 9 on continuous tunnel formula annealing furnace base plate 8, laying fireproof bricks structure is made up of several grooves 7, the inner embedded resistor band 5 of groove 7, builds some lengthways of rod 6 consistent with metal to be treated ribbon motion direction in stove by laying bricks or stones above resistive band 5.As Fig. 2, wherein resistive band at the embedded mode of inside grooves is: centered by the groove walls of resistive band in the middle of every two adjacent grooves, become symmetric curvature arrangement, the positive and negative electrode at resistive band two ends extends the outside of tunnel annealing furnace furnace wall 10 respectively from the homonymy of two grooves.
As Fig. 1 and Fig. 3, inner at burner hearth, lengthways of rod 6 is furnace bottom roll 4 above, and sheet metal strip 3 drives feeding continuous tunnel formula annealing furnace to anneal, by resistive band 5 electrified regulation sheet metal strip by furnace bottom roll 4.Insulating cotton 2 and stove roof plate 1 at furnace roof.
As one preferred embodiment, the space D 4 between lengthways of rod is generally 200 ~ 250mm.The material of lengthways of rod is attached most importance to refractory brick, and proportion is 1.0 ~ 1.2, and cross dimensions is long 60 ~ 70mm, wide 60 ~ 70mm.
In addition, in stove, the proportion of metal to be treated band is 7.0 ~ 8.0, and width is 600 ~ 700mm, and thickness is 0.285 ~ 0.63mm.
Below in conjunction with embodiment, the present invention will be further described.
Following instance is applied on the continuous tunnel type heat treatment furnace of oriented silicon steel band, and the body of heater overall length of heating partial is 88 meters, and furnace width D3 is 800mm, and resistive band gross output is 3960KW.
Embodiment 1
The following processing step of concrete employing:
1, furnace bottom laying fireproof bricks structure is groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D1=360mm;
3, groove is formed by laying fireproof bricks;
4, in resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after resistive band is shaping is D2=320mm;
6, after resistive band embedded groove, above resistive band, the lengthways of rod consistent with the direction of motion of sheet metal strip processed in stove is built again.
7, lengthways of rod space D 4 is 200mm.
8, the material of lengthways of rod is attached most importance to refractory brick, and proportion 1.1, cross dimensions is long 60mm, wide 60mm.
9, processed in stove sheet metal strip is silicon strip, and proportion 7.65, width is 600mm, and thickness is 0.285mm.
Thermo-efficiency does not have power loss, reaches 100%.
Embodiment 2
The following processing step of concrete employing:
1, furnace bottom laying fireproof bricks structure is groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D6=360mm;
3, groove is formed by laying fireproof bricks;
4, in resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after resistive band is shaping is D2=320mm;
6, after resistive band embedded groove, above resistive band, the lengthways of rod consistent with the direction of motion of sheet metal strip processed in stove is built again;
7, lengthways of rod space D 4 is 250mm;
8, the material of lengthways of rod is attached most importance to refractory brick, proportion 1.2, the long 60mm of cross dimensions, wide 70mm;
9, processed in stove sheet metal strip is silicon strip, and proportion 8.0, width is 700mm, and thickness is 0.525mm.
Thermo-efficiency does not have power loss, reaches 100%.
Embodiment 3
The following processing step of concrete employing:
1, furnace bottom laying fireproof bricks structure is groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D6=360mm.
3, groove is formed by laying fireproof bricks;
4, in resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after resistive band is shaping is D2=320mm;
6, after resistive band embedded groove, above resistive band, the lengthways of rod consistent with the direction of motion of sheet metal strip processed in stove is built again;
7, lengthways of rod spacing is 225mm;
8, the material of lengthways of rod is attached most importance to refractory brick, proportion 1.0, and cross dimensions is long 70mm, wide 70mm;
9, processed in stove sheet metal strip is silicon strip, and proportion 7.18, width is 700mm, and thickness is 0.63mm.
Thermo-efficiency does not have power loss, reaches 100%.
Claims (1)
1. a continuous tunnel formula annealing furnace structure for bottom electrical stopband heating, is characterized in that at the bottom of described continuous tunnel formula annealing furnace be laying fireproof bricks structure; Described laying fireproof bricks structure is made up of several grooves, described inside grooves embedded resistor band, some lengthways of rod consistent with metal to be treated ribbon motion direction in stove are built by laying bricks or stones above resistive band, the material of described lengthways of rod is attached most importance to refractory brick, proportion is 1.0 ~ 1.2, cross dimensions is long 60 ~ 70mm, wide 60 ~ 70mm;
Described resistive band at the embedded mode of inside grooves is: centered by the groove walls of resistive band in the middle of every two adjacent grooves, become symmetric curvature arrangement, the positive and negative electrode at resistive band two ends extends outside described tunnel annealing furnace furnace wall from the homonymy of two grooves respectively;
Spacing between described lengthways of rod is 200 ~ 250mm;
In described stove, metal to be treated band proportion is 7.0 ~ 8.0, and width is 600 ~ 700mm, and thickness is 0.285 ~ 0.63mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002686.9A CN102534179B (en) | 2012-01-06 | 2012-01-06 | Continuous tunnel type annealing furnace structure with heating bottom resistor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210002686.9A CN102534179B (en) | 2012-01-06 | 2012-01-06 | Continuous tunnel type annealing furnace structure with heating bottom resistor |
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| CN102534179A CN102534179A (en) | 2012-07-04 |
| CN102534179B true CN102534179B (en) | 2015-04-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613777B (en) * | 2015-01-12 | 2016-06-22 | 本钢板材股份有限公司 | The device of fixing annealing furnace internal resistance band |
| CN108235477A (en) * | 2018-03-14 | 2018-06-29 | 宁波萨科森工业科技有限公司 | A kind of bayonet heater |
| CN110484710B (en) * | 2019-09-17 | 2021-07-06 | 常德力元新材料有限责任公司 | Tunnel type annealing furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB370903A (en) * | 1931-01-12 | 1932-04-12 | Otto Junker G M B H | Improvements in or relating to electric furnaces |
| CN2030305U (en) * | 1988-04-28 | 1989-01-04 | 北京拖拉机公司节能技术研究所 | Closed far-infrared ray energy-saving resistance furnace |
| CN2063618U (en) * | 1989-12-29 | 1990-10-10 | 北京重型电机厂 | Box electric resistance furnace |
| CN2359854Y (en) * | 1998-08-18 | 2000-01-19 | 孟庆军 | Infrared double-source wide-spectral directed radiator |
| CN101850361A (en) * | 2009-04-01 | 2010-10-06 | 辽宁科技大学 | Solid-solid phase continuous braze welding rolling device for stainless steel composite board |
| CN201924054U (en) * | 2011-01-06 | 2011-08-10 | 广东盈泉钢制品有限公司 | On-line replacement electric heating device of strip steel continuous annealing furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6558159B2 (en) * | 2001-05-29 | 2003-05-06 | Demmer Corporation | Heat treatment container |
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2012
- 2012-01-06 CN CN201210002686.9A patent/CN102534179B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB370903A (en) * | 1931-01-12 | 1932-04-12 | Otto Junker G M B H | Improvements in or relating to electric furnaces |
| CN2030305U (en) * | 1988-04-28 | 1989-01-04 | 北京拖拉机公司节能技术研究所 | Closed far-infrared ray energy-saving resistance furnace |
| CN2063618U (en) * | 1989-12-29 | 1990-10-10 | 北京重型电机厂 | Box electric resistance furnace |
| CN2359854Y (en) * | 1998-08-18 | 2000-01-19 | 孟庆军 | Infrared double-source wide-spectral directed radiator |
| CN101850361A (en) * | 2009-04-01 | 2010-10-06 | 辽宁科技大学 | Solid-solid phase continuous braze welding rolling device for stainless steel composite board |
| CN201924054U (en) * | 2011-01-06 | 2011-08-10 | 广东盈泉钢制品有限公司 | On-line replacement electric heating device of strip steel continuous annealing furnace |
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Address after: 214000, Jiangsu Wuxi Huishan Economic Development Zone, Huishan bridge supporting area (Creek Village) Applicant after: WUXI HUAJING NEW MATERIAL Co.,Ltd. Address before: 214400, Jiangsu Huishan Wuxi Economic Development Zone Qian Qiao supporting area (Creek Village) Applicant before: Wuxi Huajin New Material Co.,Ltd. |
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Denomination of invention: A continuous tunnel annealing furnace structure heated by a bottom resistance belt Effective date of registration: 20230315 Granted publication date: 20150401 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Huishan branch Pledgor: WUXI HUAJING NEW MATERIAL Co.,Ltd. Registration number: Y2023980034890 |