CN102417967A - Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace - Google Patents
Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace Download PDFInfo
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- CN102417967A CN102417967A CN2011103779540A CN201110377954A CN102417967A CN 102417967 A CN102417967 A CN 102417967A CN 2011103779540 A CN2011103779540 A CN 2011103779540A CN 201110377954 A CN201110377954 A CN 201110377954A CN 102417967 A CN102417967 A CN 102417967A
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Abstract
The invention relates to an electric-heating hearth-less multi-hole steel-wire heat-treatment furnace. The electric-heating hearth-less multi-hole steel-wire heat-treatment furnace comprises a furnace body. An inlet wire branching rack is arranged at one end of the furnace body. An outlet wire connection part is arranged at the other end of the furnace body. The electric-heating hearth-less multi-hole steel-wire heat-treatment furnace is characterized in that the electric-heating hearth-less multi-hole steel-wire heat-treatment furnace also comprises a perforated brick assembly, heating wire drivepipes and heating wires; the perforated brick assembly is prepared from fireproof and heat-conducting materials; the perforated brick assembly is arranged in the furnace body along a furnace body length direction; insulation material layers are arranged around the perforated brick assembly; multiple steel wire holes are arranged in parallel in an upper part of the perforated brick assembly along a perforated brick assembly length direction; multiple heating wire holes are arranged in parallel in a lower part of the perforated brick assembly along a perforated brick assembly width direction; two ends of each one of the heating wire holes are respectively communicated with corresponding one of the heating wire drivepipes; the heating wire drivepipes pass through the heat-conducting materials and stretch out from a side wall of the furnace body; the heating wires pass through the corresponding heating wire drivepipes and the heating wire holes; and two ends of each one of the heating wires are communicated with a power supply. The electric-heating hearth-less multi-hole steel-wire heat-treatment furnace has the advantages of compact and reasonable structure, no hearth, small floor space, convenience of repair and maintenance, high safety, good thermal insulation performances and high heat conduction efficiency.
Description
Technical field
The invention belongs to the Steel Wire Heat Treatment equipment technical field, specifically relating to a kind of electrically heated does not have burner hearth microporous Heat Treatment Furnace for Steel Wire.
Background technology
In the prior art,, need carry out various thermal treatments to steel wire usually in order to improve the over-all properties of steel wire.Wherein, steel wire being converted into the sorbite tissue can make steel wire have good comprehensive mechanical performance.The sorbite tissue belongs to the tissue of perlite type, but its tissue is thinner than pearlitic structure, and mechanical propertys such as drawing property are more outstanding.
Heat Treatment Furnace for Steel Wire commonly used now mainly contains several kinds of retort furnace, boiling particle furnace, lead bath furnace and nichrome wire thermal radiation poling formula heat treatment furnaces etc.First three heat treatment furnace complex structure, it is big to take up space, and energy consumption is bigger, and heat-insulating property is poor.Last a kind of poling formula heat treatment furnace is used wider owing to having the advantage of saving energy consumption.But mainly there is following problem in existing poling formula heat treatment furnace: (1) is used to wear the heat-resistance stainless steel pipe range time of silk and is heated, and burnt out easily, and it is higher to wear the heat-resistance stainless steel pipe value ratio of silk, burns out the back and changes inconveniently, and what influence was produced carries out smoothly; (2) wear the bottom that the heat-resistance stainless steel pipe of silk directly bears heat and burnt out more easily, can produce oxide debris after the heat-resistance stainless steel pipe burns out, oxide debris drops on the nichrome wire of bottom, causes the nichrome wire short circuit easily, causes nichrome wire to burn.
In addition, existing heat treatment furnace all need be provided with burner hearth, and burner hearth is built into by refractory brick, and the long heating furnace of large span at high temperature uses the back easy deformation for a long time, collapses, and work-ing life is shorter, and the integral heat insulation poor effect, and energy waste is big.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, provide a kind of electrically heated not have burner hearth microporous Heat Treatment Furnace for Steel Wire, its compact construction is reasonable; Need not to be provided with burner hearth, it is little to take up room, and repair and maintenance is convenient; Safe; Good heat insulating, heat transfer efficiency is high, and HU can reach 90%.
According to technical scheme provided by the invention: electrically heated does not have burner hearth microporous Heat Treatment Furnace for Steel Wire; Comprise the body of heater that relies on stent support; Be provided with inlet wire at body of heater one end and divide coil holder; Be provided with the wire connections that goes out that is used to connect next stage equipment at the body of heater the other end, it is characterized in that: said heat treatment furnace also comprises hole tile assembly, nichrome wire sleeve pipe and nichrome wire, and said hole tile assembly adopts fire-resistant thermally conductive material to process; The hole tile assembly is arranged in the body of heater along the body of heater length direction; In the hole tile assembly around be provided with adiabator layer, in tile assembly top, hole, be provided with a plurality ofly along its length direction and the threaded hole of steel that is parallel to each other, in tile assembly bottom, hole, be provided with a plurality of along its width and the nichrome wire hole that is parallel to each other; Two ends, said nichrome wire hole respectively with a corresponding connection of nichrome wire sleeve pipe, the nichrome wire sleeve pipe runs through adiabator layer and stretches out from sidewall of the furnace body, said nichrome wire is located in nichrome wire sleeve pipe and the nichrome wire hole, nichrome wire two ends energized.
As further improvement of the present invention, the material of said hole tile assembly is a carbofrax material.
As further improvement of the present invention, said hole tile assembly is mainly spliced by polylith hole brick in order to be formed, and brick one end in hole is provided with boss, and the hole brick the other end is provided with the depression of fitting mutually with the boss shape.
As further improvement of the present invention, be fitted with the sleeve pipe stifle in the said nichrome wire sleeve pipe external port.
As further improvement of the present invention, said body of heater both sides are provided with the terminal box of arranging along the body of heater length direction, in the thereto of said nichrome wire two ends, and terminal box and power connection.
As further improvement of the present invention, said hole tile assembly is provided with the measuring and controlling temp hole of a plurality of equidistant distributions, and measuring and controlling temp is provided with thermopair in the hole.
As further improvement of the present invention, be equipped with the heat-resistance stainless steel pipe in the said threaded hole of steel, feeding in the steel pipe has protective atmosphere.Said protective atmosphere can adopt decomposed ammonia or nitrogen.
As further improvement of the present invention, enclose carbonaceousmaterial in outlet one end of said threaded hole of steel, to produce restitutive protection's atmosphere.Said carbonaceousmaterial is coke or charcoal, and the protection restitutive protection atmosphere of generation is carbon monoxide.
The present invention compared with prior art, advantage is: (1) compact construction of the present invention is reasonable, and burner hearth is not set, but is provided with the hole tile assembly, steel wire is directly walked in the threaded hole of steel in the tile assembly of hole, it is little to take up room; (2) the hole tile assembly adopts carbofrax material to process; Good heat insulating, heat transfer efficiency is high, having a narrow range of temperature between nichrome wire and the steel wire; The heat that nichrome wire sends can conduct to steel wire through the hole tile assembly very soon and take out of; HU can reach 90%, compares with heat treatment furnace in the past, and HU has improved about 30%; And because the heat conductive performance of silit is good, heat can not accumulate in nichrome wire and cause nichrome wire overheated on every side, has prolonged the work-ing life of nichrome wire; (3) the hole tile assembly is spliced by polylith hole brick, fast changeable during damage, and repair and maintenance is convenient; (4) for the specification of quality high product; Can in threaded hole of steel, add the heat-resistance stainless steel pipe, steel wire is through in the steel pipe, feeds protective atmosphere such as decomposed ammonia or nitrogen in the steel pipe; Can avoid steel pipe dropped on nichrome wire by thermogenetic oxide debris like this, safe.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the A-A sectional view among Fig. 1.
Description of reference numerals: 1-steel wire, 2-inlet wire divide coil holder, 3-hole brick, 3.1-nichrome wire hole, 3.2-threaded hole of steel, 4-body of heater, 5-adiabator layer, 6-support, 7-nichrome wire, 8-nichrome wire sleeve pipe, 9-sleeve pipe stifle, 10-terminal box, 11-to go out wire connections, 12-measuring and controlling temp hole.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in the figure: the electrically heated among the embodiment does not have burner hearth microporous Heat Treatment Furnace for Steel Wire and is mainly divided coil holder 2, hole tile assembly, body of heater 4, adiabator layer 5, support 6, nichrome wire 7, nichrome wire sleeve pipe 8, sleeve pipe stifle 9, terminal box 10 and gone out wire connections 11 by inlet wire and form.
As shown in Figure 1, said body of heater 4 is a steelwork, and body of heater 4 relies on supports 6 to support, be provided with inlet wire at body of heater 4 one ends and divide coil holder 2, body of heater 4 the other ends be provided be used to connect next stage equipment go out wire connections 11; Said hole tile assembly adopts the carbofrax material of fire-resistant heat conduction to process; The hole tile assembly is arranged in the body of heater 4 along body of heater 4 length directions; In the hole tile assembly around be provided with adiabator layer 5; In tile assembly top, hole, be provided with a plurality ofly, in tile assembly bottom, hole, be provided with a plurality of along its width and the nichrome wire hole 3.1 that is parallel to each other along its length direction and the threaded hole of steel 3.2 that is parallel to each other; 3.1 two ends, said nichrome wire hole respectively with the 8 corresponding connections of a nichrome wire sleeve pipe, nichrome wire sleeve pipe 8 runs through adiabator layer 5 and stretches out from body of heater 4 sidewalls, said nichrome wire 7 is located in nichrome wire sleeve pipe 8 and the nichrome wire hole 3.1, nichrome wire 7 two ends energized.
As shown in Figure 1, said hole tile assembly is spliced by polylith hole brick 3 in order to be formed, and brick 3 one ends in hole are provided with boss, and brick 3 the other ends in hole are provided with the depression of fitting mutually with the boss shape.Because the hole tile assembly is to be spliced by polylith hole brick 3, in process of production, fast changeable when a certain or a few hole bricks 3 damage brings great convenience for the repair and maintenance of heat treatment furnace.
Like Fig. 1, shown in Figure 2, be fitted with sleeve pipe stifle 9 in said nichrome wire sleeve pipe 8 external port.The heat shutoff that sleeve pipe stifle 9 is used for nichrome wire 7 is sent avoids heat to leak in body of heater 4, has improved the HU of heat treatment furnace.
As shown in Figure 2, said body of heater 4 both sides are provided with the terminal box 10 of arranging along body of heater 4 length directions, in the said nichrome wire 7 two ends theretos 10, and terminal box 10 and power connection.Through terminal box 10 is set, can make the circuit layout on the whole heat treatment furnace more succinct, not only elegant in appearance, and easy access is safeguarded.
As shown in Figure 1; Said hole tile assembly is provided with the measuring and controlling temp hole 12 of a plurality of equidistant distributions; Be provided with thermopair in the measuring and controlling temp hole 12; Thermopair is connected with system, and the temperature information in the body of heater 4 is transferred to system, controls the Heating temperature of nichrome wire 7 by system according to setting technology.
When the product that needs the quality of production to have relatively high expectations, need protective atmosphere around the steel wire 1, to prevent its oxidation.Product for the different mass class requirement; The form and the composition that feed protective atmosphere are also different; For the certain mass class requirement is arranged is not again extra high product still; Can in outlet one end of threaded hole of steel 3.2, enclose carbonaceousmaterial such as coke or charcoal, produce the carbon monoxide protective atmosphere of reductibility when coke or charcoal incomplete combustion, not oxidated with protection steel wire 1.For the very high product of quality grade; Can also wear the heat-resistance stainless steel pipe in the said threaded hole of steel 3.2; Feed protective atmospheres such as decomposed ammonia or nitrogen in the steel pipe, and can avoid steel pipe dropped on nichrome wire 7 by thermogenetic oxide debris like this, guaranteed the security of heat treatment furnace of the present invention.
During concrete the application; Steel wire 1 comes out from the upper level treatment facility after penetrate the threaded hole of steel 3.2 in the tile assembly of hole after dividing coil holder 2 separated times by inlet wire; Nichrome wire 7 heating powers conduct the hole tile assembly of processing to carbofrax material with heat, and the heat that nichrome wire 7 sends conducts to steel wire 1 through the hole tile assembly very soon; Steel wire 1 is walked under the Heating temperature of setting, and after heating, passes and get into the next stage treatment facility from threaded hole of steel 3.2.
Claims (10)
1. electrically heated does not have burner hearth microporous Heat Treatment Furnace for Steel Wire; Comprise the body of heater (4) that relies on support (6) to support; Be provided with inlet wire at body of heater (4) one ends and divide coil holder (2); Body of heater (4) the other end be provided be used to connect next stage equipment go out wire connections (11), it is characterized in that: said heat treatment furnace also comprises hole tile assembly, nichrome wire sleeve pipe (8) and nichrome wire (7), and said hole tile assembly adopts fire-resistant thermally conductive material to process; The hole tile assembly is arranged in the body of heater (4) along body of heater (4) length direction; In the hole tile assembly around be provided with adiabator layer (5), in tile assembly top, hole, be provided with a plurality ofly along its length direction and the threaded hole of steel (3.2) that is parallel to each other, in tile assembly bottom, hole, be provided with a plurality of along its width and the nichrome wire hole (3.1) that is parallel to each other; Two ends, said nichrome wire hole (3.1) respectively with the corresponding connection of a nichrome wire sleeve pipe (8); Nichrome wire sleeve pipe (8) runs through adiabator layer (5) and stretches out from body of heater (4) sidewall; Said nichrome wire (7) is located in nichrome wire sleeve pipe (8) and nichrome wire hole (3.1), nichrome wire (7) two ends energized.
2. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: the material of said hole tile assembly is a carbofrax material.
3. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire; It is characterized in that: said hole tile assembly is mainly spliced by polylith hole brick (3) in order to be formed; Brick (3) one ends in hole are provided with boss, and hole brick (3) the other end is provided with the depression of fitting mutually with the boss shape.
4. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: be fitted with sleeve pipe stifle (9) in said nichrome wire sleeve pipe (8) external port.
5. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire; It is characterized in that: said body of heater (4) both sides are provided with the terminal box (10) of arranging along body of heater (4) length direction; In said nichrome wire (7) the two ends theretos (10), terminal box (10) and power connection.
6. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: said hole tile assembly is provided with the measuring and controlling temp hole (12) of a plurality of equidistant distributions, and the measuring and controlling temp hole is provided with thermopair in (12).
7. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: said threaded hole of steel is equipped with the heat-resistance stainless steel pipe in (3.2), and feeding in the steel pipe has protective atmosphere.
8. electrically heated as claimed in claim 7 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: said protective atmosphere adopts decomposed ammonia or nitrogen.
9. electrically heated as claimed in claim 1 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: enclose carbonaceousmaterial in outlet one end of said threaded hole of steel (3.2), to produce restitutive protection's atmosphere.
10. electrically heated as claimed in claim 9 does not have burner hearth microporous Heat Treatment Furnace for Steel Wire, it is characterized in that: said carbonaceousmaterial is coke or charcoal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377954 CN102417967B (en) | 2011-11-24 | 2011-11-24 | Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110377954 CN102417967B (en) | 2011-11-24 | 2011-11-24 | Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace |
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| Publication Number | Publication Date |
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| CN102417967A true CN102417967A (en) | 2012-04-18 |
| CN102417967B CN102417967B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110377954 Active CN102417967B (en) | 2011-11-24 | 2011-11-24 | Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372163A (en) * | 2014-11-18 | 2015-02-25 | 镇江耐丝新型材料有限公司 | Branching comb for inside of thermal treatment furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183256A (en) * | 1996-12-18 | 1998-07-14 | Maruemu Seisakusho:Kk | Heat treatment of metallic material |
| CN201358283Y (en) * | 2008-12-03 | 2009-12-09 | 杭州创宇金属制品科技有限公司 | Heat-resistant stainless steel tube furnace for steel wire heat treatment |
| CN201952463U (en) * | 2010-12-17 | 2011-08-31 | 无锡市新科冶金设备有限公司 | Thermal treatment furnace for steel wire continuous heating and cooling cyclic utilization |
| CN202322943U (en) * | 2011-11-24 | 2012-07-11 | 无锡市新科冶金设备有限公司 | Electrical heating hearth-free porous type steel wire heat treatment furnace |
-
2011
- 2011-11-24 CN CN 201110377954 patent/CN102417967B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183256A (en) * | 1996-12-18 | 1998-07-14 | Maruemu Seisakusho:Kk | Heat treatment of metallic material |
| CN201358283Y (en) * | 2008-12-03 | 2009-12-09 | 杭州创宇金属制品科技有限公司 | Heat-resistant stainless steel tube furnace for steel wire heat treatment |
| CN201952463U (en) * | 2010-12-17 | 2011-08-31 | 无锡市新科冶金设备有限公司 | Thermal treatment furnace for steel wire continuous heating and cooling cyclic utilization |
| CN202322943U (en) * | 2011-11-24 | 2012-07-11 | 无锡市新科冶金设备有限公司 | Electrical heating hearth-free porous type steel wire heat treatment furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372163A (en) * | 2014-11-18 | 2015-02-25 | 镇江耐丝新型材料有限公司 | Branching comb for inside of thermal treatment furnace |
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| CN102417967B (en) | 2013-01-23 |
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Denomination of invention: Electric-heating hearth-less multi-hole steel-wire heat-treatment furnace Effective date of registration: 20131205 Granted publication date: 20130123 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Wuxi, Binhu branch Pledgor: Wuxi Xinke Metallurgical Equipment Co., Ltd. Registration number: 2013990000927 |
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