CN103512352B - Steel strip heat treatment heating furnace without inner container - Google Patents
Steel strip heat treatment heating furnace without inner container Download PDFInfo
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- CN103512352B CN103512352B CN201310402141.1A CN201310402141A CN103512352B CN 103512352 B CN103512352 B CN 103512352B CN 201310402141 A CN201310402141 A CN 201310402141A CN 103512352 B CN103512352 B CN 103512352B
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- heater
- heating furnace
- heat treatment
- steel band
- silicic acid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention relates to a steel strip heat treatment heating furnace without an inner container and aims to solve the problems that because an existing steel strip heating furnace heats an inner container before transferring heat, the heat efficiency is low, and unsafe factors are caused by a steel strip oxide skin or greasy dirt to a heater. The steel strip heat treatment heating furnace comprises a heating furnace shell, and is characterized in that a plurality of ceramic carrier rollers are arranged in the shell in the steel strip conveying direction, a heater is arranged above the carrier rollers, and silicic acid wool layers are arranged above the heater, on the two sides of the heater and on the two sides of the carrier rollers respectively. Due to the adoption of refractory bricks, firmness of a furnace body and steadiness of a combustion flue are guaranteed. The inner container of the furnace body does not need to be installed in advance, the silicic acid wool thermal insulation layers are good in thermal insulation effect after being compressed, and therefore power and energy are saved. Bad phenomena caused when the oxide skin or the greasy dirt falls onto the heater in the steel strip heat treatment process are avoided. The steel strip heat treatment heating furnace is suitable for online continuous steel strip heat treatment.
Description
Technical field
The present invention relates to technical field of heat treatment equipment, especially a kind of without inner bag steel band heat treatment heating furnace.
Background technology
Existing steel band heat treatment heating furnace is substantially: be preinstalled with inner bag, i.e. Muffle furnace, and adopt electric furnace heating wire heating, steel band is heat-treated through inner bag.If patent announcement number is CN202390500U, disclosed a kind of steel band heat-treatment furnace modified node method, comprise body of heater, be located at the heat-insulation layer in body of heater, flame retardant coating, flue and multiple heating component, heating component comprises heat pipe, heating wire and lead-out wire, and wherein heating wire is helically wound around on heat pipe, and lead-out wire is arranged at the two ends of heating wire respectively, heat pipe transverse strands is located at top and the below of flue, and heat pipe both ends penetrate flame retardant coating internal fixtion.If patent publication No. is CN102191370A, the double-line continuous heat treatment system for steel strips provided, comprises austenite heating furnace, tempering furnace successively, is provided with the first steel band arranged side by side and the second steel band in heating furnace, tempering furnace.For another example patent publication No. is CN1071962A, disclosed a kind of continuous heat treating furnace with direct heating arrangement, electric heating element is resistant to elevated temperatures steel pipe or steel band, and through whole burner hearth, with burner hearth with long, tubulose electric heating element cuts open as upper and lower two parts along its length, and at one end upper and lower two parts electric conductor is connected as one, the remainder insulating materials of electric heating element is separated from each other by it, mutual insulating, is connected upper and lower two parts electric heating element with the output of transformer by lead body respectively at the other end of upper and lower electric heating element.These devices make the thermal efficiency reduce by inner bag, Heat Transfer in Furnace; Electrical heating elements is contained in steel band bottom, due to steel strip surface unavoidably with grease etc., has greasy dirt atmosphere during heating, impact and corrosion heating surface and inner bag surperficial, make it to destroy or shorten the life-span.
Summary of the invention
The object of the invention is to solve existing steel strip heating furnace by then inner bag heating is conducted heat, cause the thermal efficiency low, and steel band oxide skin or greasy dirt cause the problem of unsafe factor to heater, a kind of reasonable in design is provided, direct heating, safety, high thermal efficiency without inner bag steel band heat treatment heating furnace.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of without inner bag steel band heat treatment heating furnace, comprise heating furnace housing, it is characterized in that being provided with some carrier rollers along steel band throughput direction in housing, be provided with heater above carrier roller, the both sides of the top of heater and heater, carrier roller are equipped with the cotton layer of silicic acid.The technical program is mainly used in the thin plate heat treatment heating of thickness of slab≤5mm, heating furnace housing turnover two ends are equipped with heat insulation sealing device, carrier roller heats length setting quantity by the work of heating furnace housing, and reasonable Arrangement spacing, ensure to be heated steel band not sagging.In housing, except refractory brick base portion, other is all laid with the cotton layer of silicic acid, form by heating steel band walking space between carrier roller and heater, namely in housing, middle and upper part all adopts silicic acid cotton as heat-insulation layer, during work, can expand laterally after the heating of silicic acid cotton, thus, also just form the thermal treatment tunnel that a heating design requires, the technical program is without the need to pre-installing body of heater inner bag.The cotton heat-insulation layer heat insulation effect of silicic acid after high pressure compressed is fabulous, can power and energy saving.Because heater is arranged on by the top of heating steel band, completely avoid in steel band heat treatment process like this, the impurity such as oxide skin or greasy dirt drops to phenomenon heater producing short circuit.
As preferably, the cotton layer of described silicic acid adopts highdensity aluminium silicate wool after compression.Aluminium silicate wool has low heat conductivity, low heat capacity, excellent heat endurance, chemical stability and sound absorption properties, and non-corrosiveness material, be well suited for steel band heating and thermal insulation.After compression, the cotton layer density of silicic acid is comparatively large, and heat-insulating property is better.The dry method density of aluminium silicate wool is at 80 ~ 150 kg/m
3, wet method is common at 80 ~ 250(), density: 80 ~ 130kg/m
3, the technical program selects density to be greater than 200 kg/m
3material make.
As preferably, in described hot furnace shell, bottom is provided with refractory brick base, and carrier roller is positioned at above refractory brick base.Make full use of refractory brick own wt, ensure that body of heater is firm, combustion flue is steady.
As preferably, described heater is plate-belt type structure or column type rod-like structure.Heater takes up space in body of heater should be little, and magnitude setting and position need ensure that in-furnace temperature is even.
As preferably, the cotton layer of silicic acid of described heating furnace housing internal upper part is close to heater surfaces.When not heating, the cotton layer of silicic acid and heater surfaces are affixed, and after heating, the cotton layer of silicic acid outwards can produce stretching, extension, and now in stove, heating space can increase to some extent, and this structure makes in-furnace temperature utilization rate reach best.
As preferably, the distance >=80mm between described carrier roller and heater.Sheet band strip when entering heating furnace is also not exclusively smooth, and leave rational space length between carrier roller and heater, make in strip walking process, top can not produce direct friction with heater.
As preferably, in described heater, be provided with heat transfer inner bag.Heater is conducted heat by inner bag, and thermal conductivity is low, even heat transmission, warm stable.
As preferably, the material of described aluminium silicate wool is the ultralight alumina silicate of long filament.The ultralight alumina silicate of long filament is 5-6 times of common alumina silicate fibre length, can reduce 10-30% with thermal conductivity under isodensity.The ultralight alumina silicate of long filament has stable performance, and fiber is long, tensile strength is large, and anti-seismic performance is strong, unit weight is light, thermal conductivity factor is low, heat-proof quality is good, and chemical stability is strong, good insulation preformance, the advantages such as sound absorption properties is excellent, and anti-rapid heat cycle performance is strong.
As preferably, the cotton layer of described silicic acid is channel steel shape structure.It is shaping that the cotton layer of silicic acid in the technical program disposablely can press furnace inner space size, and then heater is installed in it, manufacturing process is simple, and integrated cost is low.
As preferably, the cotton layer of described silicic acid is domes.Channel steel shape structure and domes make the cotton layer self of silicic acid just have higher structural strength, not only meet the stability of the installation of heating furnace internal heater, keeping warmth space, combustion flue, and long service life, and convenient for installation and maintenance, workload is few.
Effective effect of the present invention is: use refractory brick to ensure that body of heater is firm, combustion flue is steady; Without the need to pre-installing body of heater inner bag, the cotton heat-insulation layer high insulating effect of the silicic acid after compression, power and energy saving; Avoid oxide skin or greasy dirt in steel band heat treatment process to drop on heater and cause bad phenomenon; Be suitable for the heat treatment of steel band on-line continuous.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional structure schematic diagram of the present invention.
In figure: 1. heating furnace housing, 2. carrier roller, 3. heater, 4. silicic acid cotton layer, 5. steel band, 6. refractory brick base.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
See Fig. 1, the present embodiment is a kind of without inner bag steel band heat treatment heating furnace, forms by being provided with the heating furnace housing 1 of refractory brick base 6, carrier roller 2, heater 3 and insulation silicic acid cotton layer 4.
In heating furnace housing 1, a row carrier roller 2 is installed in the top of refractory brick base 6, distance between adjacent two pieces carrier roller 2 is 100mm, and above carrier roller 2, install rod heater 3 with carrier roller 100mm place, rod heater 3 end passes heating furnace housing 1 external power supply.In heating furnace housing 1, the both sides of the top of heater 3 and heater, carrier roller are covered with the cotton layer 4 of silicic acid entirely.
After the cotton layer 4 of silicic acid adopts compression, the ultralight aluminium silicate wool material of highdensity long filament makes, and make the channel steel shape structure of integral type, both sides in channel steel shape structure are close to the upper plane of bottom and refractory brick base 6, carrier roller 2, heater 3 are all positioned at the intrinsic space of channel steel shape structure, and this channel steel shape structure of the cotton layer 4 of silicic acid makes stove inside holding spatial-intensity firm.
During use, heater 3 heats, and in heating furnace housing 1, aluminium silicate wool outwards expands on a small quantity, and thermal treatment tunnel is opened, and steel band 5 moves along carrier roller 2 and heat-treats heating operation.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the structure after simple transformation of the present invention, technique.
Claims (7)
1. one kind without inner bag steel band heat treatment heating furnace, comprise heating furnace housing (1), it is characterized in that being provided with some carrier rollers (2) along steel band throughput direction in housing, carrier roller (2) top is provided with heater (3), the both sides of the top of heater (3) and heater, carrier roller are equipped with the cotton layer (4) of silicic acid, and the material of the cotton layer of silicic acid is the ultralight alumina silicate of long filament; Described heater (3) is plate-belt type structure or column type rod-like structure, and the cotton layer (4) of silicic acid of heating furnace housing (1) internal upper part is close to heater (3) surface; During work, the cotton layer of silicic acid heats backward lateral expansion, forms the thermal treatment tunnel of a steel band heating requirements.
2. according to claim 1 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the cotton layer (4) of described silicic acid adopts the rear highdensity aluminium silicate wool material of compression.
3. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that described hot furnace shell (1) interior bottom is provided with refractory brick base (6), carrier roller (2) is positioned at above refractory brick base.
4. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the distance >=80mm between described carrier roller (2) and heater (3).
5. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that being provided with heat transfer inner bag in described heater (3).
6. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the cotton layer (4) of described silicic acid is in channel steel shape structure.
7. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the cotton layer (4) of described silicic acid is in domes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402141.1A CN103512352B (en) | 2013-09-06 | 2013-09-06 | Steel strip heat treatment heating furnace without inner container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402141.1A CN103512352B (en) | 2013-09-06 | 2013-09-06 | Steel strip heat treatment heating furnace without inner container |
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| CN103512352A CN103512352A (en) | 2014-01-15 |
| CN103512352B true CN103512352B (en) | 2015-06-24 |
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| CN201310402141.1A Active CN103512352B (en) | 2013-09-06 | 2013-09-06 | Steel strip heat treatment heating furnace without inner container |
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Citations (9)
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| GB537489A (en) * | 1939-12-22 | 1941-06-24 | Theodor Teisen | Improvements relating to furnaces |
| CN2370019Y (en) * | 1999-03-24 | 2000-03-22 | 杭州金舟电炉有限公司 | Fast isothermal spheroidization annealing furnace |
| CN2479012Y (en) * | 2001-04-26 | 2002-02-27 | 洛阳北方玻璃技术股份有限公司 | Far infrared temp.-measuring horizontal roller type glass-tempering electric furnace set |
| CN1621771A (en) * | 2005-01-05 | 2005-06-01 | 佛山市灵海陶瓷科技有限公司 | Wide roller way kiln |
| CN2893600Y (en) * | 2006-04-30 | 2007-04-25 | 孙兆国 | Energy-saving roller kiln |
| CN101963453A (en) * | 2010-10-09 | 2011-02-02 | 柳丹 | Drying channel for inner wall tile bisque firing roller kiln |
| CN201983615U (en) * | 2011-01-10 | 2011-09-21 | 佛山市南海金刚新材料有限公司 | Composite ceramic roller |
| CN202785969U (en) * | 2012-07-19 | 2013-03-13 | 陕西彩虹电子玻璃有限公司 | Heating device for heating pull roll |
| CN203478943U (en) * | 2013-09-06 | 2014-03-12 | 浙江康盛股份有限公司 | Steel belt heat treatment heating furnace without inner container |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2194495Y (en) * | 1994-03-28 | 1995-04-12 | 扬州市佳能工业炉公司 | Full fibre energy-saving furnace liner |
| JP4982762B2 (en) * | 2005-09-30 | 2012-07-25 | Ｄｏｗａサーモテック株式会社 | Heat treatment furnace |
-
2013
- 2013-09-06 CN CN201310402141.1A patent/CN103512352B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537489A (en) * | 1939-12-22 | 1941-06-24 | Theodor Teisen | Improvements relating to furnaces |
| CN2370019Y (en) * | 1999-03-24 | 2000-03-22 | 杭州金舟电炉有限公司 | Fast isothermal spheroidization annealing furnace |
| CN2479012Y (en) * | 2001-04-26 | 2002-02-27 | 洛阳北方玻璃技术股份有限公司 | Far infrared temp.-measuring horizontal roller type glass-tempering electric furnace set |
| CN1621771A (en) * | 2005-01-05 | 2005-06-01 | 佛山市灵海陶瓷科技有限公司 | Wide roller way kiln |
| CN2893600Y (en) * | 2006-04-30 | 2007-04-25 | 孙兆国 | Energy-saving roller kiln |
| CN101963453A (en) * | 2010-10-09 | 2011-02-02 | 柳丹 | Drying channel for inner wall tile bisque firing roller kiln |
| CN201983615U (en) * | 2011-01-10 | 2011-09-21 | 佛山市南海金刚新材料有限公司 | Composite ceramic roller |
| CN202785969U (en) * | 2012-07-19 | 2013-03-13 | 陕西彩虹电子玻璃有限公司 | Heating device for heating pull roll |
| CN203478943U (en) * | 2013-09-06 | 2014-03-12 | 浙江康盛股份有限公司 | Steel belt heat treatment heating furnace without inner container |
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| CN103512352A (en) | 2014-01-15 |
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