CN103512352A - 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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- CN103512352A CN103512352A CN201310402141.1A CN201310402141A CN103512352A CN 103512352 A CN103512352 A CN 103512352A CN 201310402141 A CN201310402141 A CN 201310402141A CN 103512352 A CN103512352 A CN 103512352A
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- heating furnace
- heat treatment
- heater
- steel band
- inner bag
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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
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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 Equipment for Heating Processing technical field, 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, Muffle furnace, adopts electric furnace heating wire heating, and steel band is heat-treated through inner bag.If patent announcement number is CN202390500U, disclosed a kind of steel band heat-treatment furnace improves structure, comprise body of heater, be located at heat-insulation layer, flame retardant coating, flue and a plurality of heating component in body of heater, heating component comprises heat pipe, heating wire and lead-out wire, and wherein heating wire spiral winding is on heat pipe, and lead-out wire is arranged at respectively the two ends of heating wire, heat pipe transverse strands is located at top and the below of flue, and heat pipe both ends penetrate in flame retardant coating fixing.If patent publication No. is CN102191370A, the double-line continuous heat treatment system for steel strips providing, 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, same long with burner hearth, tubulose electric heating element cuts open along its length as upper and lower two parts, and at one end upper and lower two parts are connected as one with electric conductor, the remainder of electric heating element is spaced-apart by it with insulating materials, mutual insulating, is connected upper and lower two parts electric heating element respectively by lead-in wire body at the other end of upper and lower electric heating element with the output of transformer.These devices reduce the thermal efficiency by inner bag, Heat Transfer in Furnace; Electrical heating elements is contained in steel band bottom, because steel strip surface unavoidably has grease etc., has greasy dirt atmosphere during heating, and impact and corrosion heating surface and inner bag surface, make it to destroy or the shortening life-span.
Summary of the invention
The object of the invention is in order 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, directly 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 along steel band throughput direction, being provided with some carrier rollers in housing, carrier roller top is provided with heater, and 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, guarantees 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, between carrier roller and heater, form and be heated steel band walking space, in housing, middle and upper part all adopts silicic acid cotton as heat-insulation layer, during work, after the cotton heating of silicic acid, can expand laterally, thus, also just form the heat treatment passage of a heating design requirement, the technical program is without prepackage body of heater inner bag.The cotton fabulous ，Ke of heat-insulation layer heat insulation effect of silicic acid power and energy saving after high pressure compressed.。Because heater is arranged on the top that is heated steel band, to have avoided so completely in steel band heat treatment process, the impurity such as oxide skin or greasy dirt drop on heater and produce the phenomenon of 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, good heat endurance, chemical stability and sound absorption properties, and non-corrosiveness material, is well suited for steel band heating and thermal insulation.After compression, the cotton layer of silicic acid density is larger, 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 refractory brick base top.Make full use of refractory brick own wt, guarantee that body of heater is firm, combustion flue is steady.
As preferably, described heater is plate-belt type structure or column type clavate structure.Heater takes up space in body of heater should be little, and magnitude setting and position need guarantee that in stove, temperature is even.
As preferably, the cotton layer of the silicic acid of described heating furnace housing internal upper part is close to heater surfaces.When not heating, the cotton layer of silicic acid is affixed with heater surfaces, and after heating, the cotton layer of silicic acid can outwards produce and stretch, and now in stove, heating space can increase to some extent, and this structure makes temperature utilization rate in stove reach best.
As preferably, described carrier roller and the distance >=80mm between heater.Sheet band strip when entering heating furnace is also not exclusively smooth, leaves rational space length between carrier roller and heater, makes strip walking process Zhong， top can not produce direct friction with heater.
As preferably, in described heater, be provided with heat transfer inner bag.Heater conducts heat by inner bag, and thermal conductivity is low, and heat evenly transmits, 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, with thermal conductivity under isodensity, can reduce 10-30%.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 advantage 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.The cotton layer of silicic acid in the technical program can disposablely be pressed the moulding of furnace inner space size, then heater is installed in it, and 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 of silicic acid self just have higher structural strength, not only meet installation, the keeping warmth space of heating furnace internal heater, the stability of 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 guarantee that body of heater is firm, combustion flue is steady; Without prepackage body of heater inner bag, the cotton heat-insulation layer high insulating effect of silicic acid after compression, power and energy saving; Avoid in steel band heat treatment process oxide skin or greasy dirt to drop to and on heater, caused bad phenomenon; Applicable steel band on-line continuous heat treatment.
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, the 4. cotton layer of silicic acid, 5. steel band, 6. refractory brick base.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, the present embodiment is a kind of without inner bag steel band heat treatment heating furnace, the heating furnace housing 1, carrier roller 2, heater 3 and the cotton layer 4 of insulation silicic acid that are provided with refractory brick base 6, consists of.
In heating furnace housing 1, a row carrier roller 2 is installed in the top of refractory brick base 6, the distance that adjacent two carrier rollers are 2 is 100mm, above carrier roller 2, with carrier roller 100mm place, bar type heater 3 is installed, and bar type heater 3 ends pass 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 is made, and make the channel steel shape structure of integral type, channel steel shape structure Zhong both sides 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 the interior keeping warmth space intensity of stove firm.
During use, heater 3 heating, the interior aluminium silicate wool of heating furnace housing 1 is a small amount of expansion outwards, and heat treatment passage is opened, and steel band 5 moves and heat-treats heating operation along carrier roller 2.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any structure after simple transformation of the present invention, technique is all belonged to protection scope of the present invention.
Claims (10)
1. one kind without inner bag steel band heat treatment heating furnace, comprise heating furnace housing (1), it is characterized in that along steel band throughput direction, being provided with some carrier rollers (2) in housing, carrier roller (2) top is provided with heater (3), and the both sides of the top of heater (3) and heater, carrier roller are equipped with the cotton layer of silicic acid (4).
2. according to claim 1 a kind of without inner bag steel band heat treatment heating furnace, the cotton layer of silicic acid (4) described in it is characterized in that 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 the described interior bottom of hot furnace shell (1) is provided with refractory brick base (6), carrier roller (2) is positioned at refractory brick base top.
4. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that described heater (3) is for plate-belt type structure or column type clavate structure.
5. according to claim 4 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the cotton layer of silicic acid (4) of described heating furnace housing (1) internal upper part is close to heater (3) surface.
6. according to claim 1 and 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that described carrier roller (2) and the distance >=80mm between heater (3).
7. 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).
8. according to claim 2 a kind of without inner bag steel band heat treatment heating furnace, it is characterized in that the material of described aluminium silicate wool is the ultralight alumina silicate of long filament.
9. 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 of described silicic acid (4) is channel steel shape structure.
10. 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 of described silicic acid (4) is 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 true CN103512352A (en) | 2014-01-15 |
| CN103512352B 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 (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537489A (en) * | 1939-12-22 | 1941-06-24 | Theodor Teisen | Improvements relating to furnaces |
| CN2194495Y (en) * | 1994-03-28 | 1995-04-12 | 扬州市佳能工业炉公司 | Full fibre energy-saving furnace liner |
| 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 |
| JP2007093160A (en) * | 2005-09-30 | 2007-04-12 | Dowa Holdings Co Ltd | Heat treatment furnace |
| 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 |
-
2013
- 2013-09-06 CN CN201310402141.1A patent/CN103512352B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537489A (en) * | 1939-12-22 | 1941-06-24 | Theodor Teisen | Improvements relating to furnaces |
| CN2194495Y (en) * | 1994-03-28 | 1995-04-12 | 扬州市佳能工业炉公司 | Full fibre energy-saving furnace liner |
| 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 |
| JP2007093160A (en) * | 2005-09-30 | 2007-04-12 | Dowa Holdings Co Ltd | Heat treatment furnace |
| 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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| CN103512352B (en) | 2015-06-24 |
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