CN102534179A - 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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- CN102534179A CN102534179A CN2012100026869A CN201210002686A CN102534179A CN 102534179 A CN102534179 A CN 102534179A CN 2012100026869 A CN2012100026869 A CN 2012100026869A CN 201210002686 A CN201210002686 A CN 201210002686A CN 102534179 A CN102534179 A CN 102534179A
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- annealing furnace
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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 a kind of continuous tunnel annealing furnace structure of bottom electrical stopband heating, be widely used in heat treated stove internal structures such as sheet metal strip continuous annealing.
Background technology
For the performance that improves sheet metal strip with make band reach required thickness, sheet metal strip is extensively carried out the cold rolling of multi-pass heavy reduction, but since sheet metal strip after multi-pass heavy reduction cold rolling; Can produce peening, so, before sheet metal strip is processed product; Must in stove, anneal, to eliminate peening, not so; Sheet metal strip is high because of hardness, and bad plasticity makes follow-up various processing to carry out.
The used energy of continuous tunnel type lehre heating has multiple, like coal gas, oil, Sweet natural gas and electricity etc.Wherein, easy to control, and pollution-free because of the easiest acquisition of electric energy, be widely used.
The tunnel type lehre generally has with electrically heated form continuously: be layered on furnace bottom, the direct heating burner hearth with naked the setting level of resistive band; Be layered on furnace bottom with naked the setting level of resistive band, protecting sheet is installed in the resistive band top, and resistive band heated protective plate is through the heat radiation heating furnace thorax of protecting sheet; Be placed in the metal tube with resistive band, heating metal pipe is through the heat radiation heating furnace thorax of metal tube.
More than continuously though the tunnel type lehre is feasible with electrically heated form, shortcoming is a lot, states as follows respectively at present:
Be layered on furnace bottom with naked the setting level of resistive band; The method of direct heating burner hearth is though thermo-efficiency is high, because of a variety of causes; Cause the sheet metal strip that is processed in the stove usually to be broken; After the sheet metal strip that is processed in the stove was broken, it took the lead to run into naked setting level on the resistive band that is layered on furnace bottom, made the resistive band short circuit and tripped.In addition, taking the lead after the sheet metal strip that is processed in the stove is broken can be caught on the naked resistive band that is layered on furnace bottom of setting level, and draws race to resistive band.
Be layered on furnace bottom with naked the setting level of resistive band, protecting sheet is installed in resistive band top, resistive band heated protective plate, and the method for the heat radiation heating furnace thorax through protecting sheet, its thermo-efficiency is low, investment is big, maintenance difficult.
Be placed in the metal tube with resistive band; Heating metal pipe, the method for the heat radiation heating furnace thorax through metal tube is, investment low except thermo-efficiency is big; Also have common fire box temperature high; The metal radiator tube at high temperature can place creep and sink, and causes the burner hearth tunnel to be blocked and can not produce, and running cost is high.
Sum up above-mentionedly, existing bottom construction can not make resistive band have good fixed effect under the condition of least cost, can not bring into play optimum metal annealed thermo-efficiency, i.e. the suitable annealing temperature of metal.And the improvement of adjustment bottom construction does not see that the related patent U.S. Patent No. document reports yet.
Summary of the invention
The present invention provides the continuous tunnel annealing furnace structure of a kind of bottom electrical stopband heating, and the technical problem of solution is the thermo-efficiency that the resistive band of furnace bottom is fixed well and brings into play the optimum sheet metal strip simultaneously, and cost is lower, and is easy to maintenance.
The present invention realizes through following technical scheme:
A kind of continuous tunnel annealing furnace structure of bottom electrical stopband heating, said continuous tunnel annealing furnace furnace bottom is the refractory brick masonry construction; Said refractory brick masonry construction is made up of several grooves, said inside grooves embedded resistor band, resistive band top build by laying bricks or stones some with the interior consistent lengthways of rod of metal to be treated ribbon motion direction of stove.
Said resistive band at the embedded mode of inside grooves is: resistive band is the center with per two adjacent grooves intermediary groove walls; Become symmetric curvature to arrange, the positive and negative electrode at resistive band two ends extends the outside, said tunnel annealing furnace furnace wall from the homonymy of two grooves respectively.
With the refractory brick groove that structure of the present invention is built by laying bricks or stones, can make the flexible resistor band in whole annealing process, keep shape and invariant position, be equivalent to provide the fixing part of a kind of resistive band shape and structure; And according to the alloy of resistive band or the flexible characteristic on metal material and surface, with the thermo-efficiency releasing structure that crooked arrangement mode energized structural is the optimum sheet metal strip, this structure of the present invention can make the complete annealing flow process of accomplishing rapidly of sheet metal strip.
Spacing between the said lengthways of rod is 200～250mm.
The material of the said lengthways of rod refractory brick of attaching most importance to, proportion is 1.0～1.2, cross dimensions is long 60～70mm, wide 60～70mm.
Metal to be treated band proportion is 7.0～8.0 in the said stove, and width is 600～700mm, and thickness is 0.285～0.63mm.
Beneficial effect of the present invention is:
1, resistive band is in sheet metal strip annealed whole process structure and dimensionally stable, homo(io)thermism;
2, annealing process guarantees that the metal belt structure is complete, and the sheet metal strip spoilage is low, and resistive band thermo-efficiency is high, and the lehre maintenance cost is low.
Description of drawings
Fig. 1 is the cross section elevational schematic view 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 among Fig. 1
D1 is the width of each groove, and D2 is the width after the resistive band moulding in each groove, and D3 is the width of burner hearth, and D4 is the lengthways of rod spacing.
Fig. 3 is the B-B cross section view among Fig. 2
D5 is the degree of depth of groove, and D6 is the resistive band height.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further specified.
As depicted in figs. 1 and 2; The present invention is a kind of continuous tunnel annealing furnace structure of bottom electrical stopband heating; Be refractory brick masonry construction 9 above the tunnel annealing furnace drop-bottom 8 continuously; The refractory brick masonry construction is made up of several grooves 7, groove 7 inner embedded resistor bands 5, resistive band 5 tops build by laying bricks or stones some with stove in the consistent lengthways of rod 6 of metal to be treated ribbon motion direction.Like Fig. 2; Wherein resistive band at the embedded mode of inside grooves is: resistive band is the center with per two adjacent grooves intermediary groove walls; Become symmetric curvature to arrange, 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.
Like Fig. 1 and Fig. 3, inner at burner hearth, be furnace bottom roll 4 above the lengthways of rod 6, sheet metal strip 3 is sent into continuous tunnel annealing furnace by furnace bottom roll 4 drives and is annealed, by resistive band 5 energising heating of metal bands.At furnace roof is insulating cotton 2 and stove roof plate 1.
As preferred embodiment a kind of, the space D 4 between the lengthways of rod is generally 200～250mm.The material of the lengthways of rod refractory brick of attaching most importance to, proportion is 1.0～1.2, cross dimensions is long 60～70mm, wide 60～70mm.
In addition, the proportion of metal to be treated band is 7.0～8.0 in the stove, and width is 600～700mm, and thickness is 0.285～0.63mm.
Below in conjunction with embodiment, the present invention is further specified.
Following instance is applied on the continuous tunnel type heat treatment furnace of oriented silicon steel band, and the body of heater length overall of electrically heated part is 88 meters, and furnace width D3 is 800mm, and the resistive band gross output is 3960KW.
Embodiment 1
The following process step of concrete employing:
1, furnace bottom refractory brick masonry construction is a groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D1=360mm;
3, groove is built by laying bricks or stones by refractory brick and is formed;
4, in the resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after the resistive band moulding is D2=320mm;
6, behind the resistive band embedded groove, resistive band top build again with stove in the consistent lengthways of rod of heading of the sheet metal strip that is processed.
7, lengthways of rod space D 4 is 200mm.
8, the material of the lengthways of rod refractory brick of attaching most importance to, proportion 1.1, cross dimensions is long 60mm, wide 60mm.
9, the sheet metal strip that is processed in the stove is a silicon steel strap, and proportion 7.65, width are 600mm, and thickness is 0.285mm.
Thermo-efficiency does not have power loss, reaches 100%.
The following process step of concrete employing:
1, furnace bottom refractory brick masonry construction is a groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D6=360mm;
3, groove is built by laying bricks or stones by refractory brick and is formed;
4, in the resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after the resistive band moulding is D2=320mm;
6, behind the resistive band embedded groove, resistive band top build again with stove in the consistent lengthways of rod of heading of the sheet metal strip that is processed;
7, lengthways of rod space D 4 is 250mm;
8, the material of the lengthways of rod refractory brick of attaching most importance to, proportion 1.2, the long 60mm of cross dimensions, wide 70mm;
9, the sheet metal strip that is processed in the stove is a silicon steel strap, and proportion 8.0, width are 700mm, and thickness is 0.525mm.
Thermo-efficiency does not have power loss, reaches 100%.
The following process step of concrete employing:
1, furnace bottom refractory brick masonry construction is a groove type;
2, the degree of depth of groove is D5=60mm, and the width of groove is D6=360mm.
3, groove is built by laying bricks or stones by refractory brick and is formed;
4, in the resistive band embedded groove;
5, the height of resistive band is D6=35mm, and the width after the resistive band moulding is D2=320mm;
6, behind the resistive band embedded groove, resistive band top build again with stove in the consistent lengthways of rod of heading of the sheet metal strip that is processed;
7, the lengthways of rod spacing is 225mm;
8, the material of the lengthways of rod refractory brick of attaching most importance to, proportion 1.0, cross dimensions is long 70mm, wide 70mm;
9, the sheet metal strip that is processed in the stove is a silicon steel strap, and proportion 7.18, width are 700mm, and thickness is 0.63mm.
Thermo-efficiency does not have power loss, reaches 100%.
Claims (5)
1. the continuous tunnel annealing furnace structure of a bottom electrical stopband heating is characterized in that said continuous tunnel annealing furnace furnace bottom is the refractory brick masonry construction; Said refractory brick masonry construction is made up of several grooves, said inside grooves embedded resistor band, resistive band top build by laying bricks or stones some with the interior consistent lengthways of rod of metal to be treated ribbon motion direction of stove.
2. the continuous tunnel annealing furnace structure of a kind of bottom electrical stopband heating as claimed in claim 1; It is characterized in that said resistive band at the embedded mode of inside grooves is: resistive band is the center with per two adjacent grooves intermediary groove walls; Become symmetric curvature to arrange, the positive and negative electrode at resistive band two ends extends the outside, said tunnel annealing furnace furnace wall from the homonymy of two grooves respectively.
3. the continuous tunnel annealing furnace structure of a kind of bottom electrical stopband heating as claimed in claim 1 is characterized in that the spacing between the said lengthways of rod is 200～250mm.
4. the continuous tunnel annealing furnace structure of a kind of bottom electrical stopband heating as claimed in claim 1, the material that the it is characterized in that said lengthways of rod refractory brick of attaching most importance to, proportion is 1.0～1.2, cross dimensions is long 60～70mm, wide 60～70mm.
5. the continuous tunnel annealing furnace structure of a kind of bottom electrical stopband heating as claimed in claim 1 is characterized in that metal to be treated band proportion is 7.0～8.0 in the said stove, and width is 600～700mm, and thickness is 0.285～0.63mm.
Priority Applications (1)
| 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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| 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 true CN102534179A (en) | 2012-07-04 |
| CN102534179B CN102534179B (en) | 2015-04-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613777A (en) * | 2015-01-12 | 2015-05-13 | 本钢板材股份有限公司 | Device for fixing resistance band in annealing furnace |
| 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 |
| CN110484710A (en) * | 2019-09-17 | 2019-11-22 | 常德力元新材料有限责任公司 | Tunnel annealing furnace |
Citations (7)
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| 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 |
| US20020182558A1 (en) * | 2001-05-29 | 2002-12-05 | Demmer Corporation | Heat treatment container |
| 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 |
-
2012
- 2012-01-06 CN CN201210002686.9A patent/CN102534179B/en active Active
Patent Citations (7)
| 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 |
| US20020182558A1 (en) * | 2001-05-29 | 2002-12-05 | Demmer Corporation | Heat treatment container |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613777A (en) * | 2015-01-12 | 2015-05-13 | 本钢板材股份有限公司 | Device for fixing resistance band in annealing furnace |
| 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 |
| CN110484710A (en) * | 2019-09-17 | 2019-11-22 | 常德力元新材料有限责任公司 | Tunnel annealing furnace |
| 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 |
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| CN102534179B (en) | 2015-04-01 |
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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 |
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