CN208346217U - A kind of spheroidizing annealing furnace of convection type - Google Patents
A kind of spheroidizing annealing furnace of convection type Download PDFInfo
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- CN208346217U CN208346217U CN201820398042.9U CN201820398042U CN208346217U CN 208346217 U CN208346217 U CN 208346217U CN 201820398042 U CN201820398042 U CN 201820398042U CN 208346217 U CN208346217 U CN 208346217U
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- Prior art keywords
- interior bucket
- furnace
- bell
- convection
- barrel
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- 238000000137 annealing Methods 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 7
- 241001582888 Lobus Species 0.000 claims 1
- 238000005261 decarburization Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 32
- 239000007789 gas Substances 0.000 description 19
- 229910052757 nitrogen Inorganic materials 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000000354 decomposition reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
The utility model discloses a kind of spheroidizing annealing furnaces of convection type, including convection barrel, the outer end side wall of the convection barrel is equipped with interior bucket, the outer end side wall of interior bucket is equipped with outer barrel, the inner wall of outer barrel is fixedly connected with insulating layer, the top of insulating layer is equipped with heating device, bell is installed at the top of interior bucket, and bell is sealed by compressing button and interior bucket, the outer end upper wall of outer barrel is equipped with rotating seat vertically, the upper end of rotating seat is equipped with cantilever, cantilever is connected with bell by chain, the convection device is by furnace bottom motor, centrifugal impeller, furnace roof motor and axial wheel composition, furnace bottom motor and centrifugal impeller are mounted on bottom of the barrel, furnace roof motor and axial wheel are mounted on bell.The utility model in-furnace temperature is more uniform, and convection current range is bigger in furnace, and convection current dead angle is less, and the wire quality of the neither decarburization nor carburetting of the wire rod after annealing, production is good.
Description
Technical field
The utility model relates to annealing furnace production technical field more particularly to a kind of spheroidizing annealing furnaces of convection type.
Background technique
Currently, spheroidizing annealing furnace is more than the spheroidizing with wire rod, with the promotion of product quality, client is to wire annealing
Requirement afterwards is also higher and higher, and the wire rod hardness scattered error after not requiring nothing more than annealing is small, but also requires the wire rod after annealing neither
Decarburization also not carburetting.Temperature uniformity in spheroidizing annealing furnace furnace affects the hardness scattered error after wire annealing, and in-furnace temperature is got over
Uniform then wire rod hardness scattered error is then smaller, otherwise hardness scattered error is then bigger.The decarburization of wire rod is by the atmosphere in furnace after annealing
Control, Atmosphere Control can only be manually adjusted according to personal experience at present.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of ball of the convection type proposed
Annealing furnace.
To achieve the goals above, the utility model adopts the technical scheme that
The outer end side wall of a kind of spheroidizing annealing furnace of convection type, including convection barrel, the convection barrel is equipped with interior bucket, interior bucket
Outer end side wall outer barrel is installed, the inner wall of outer barrel is fixedly connected with insulating layer, and the top of insulating layer is equipped with heating device, interior
The top of bucket is equipped with bell, and bell is sealed by compressing button and interior bucket, and the outer end upper wall of outer barrel is equipped with rotation vertically
Seat, the upper end of rotating seat are equipped with cantilever, and cantilever is connected with bell by chain, and the convection device is by furnace bottom motor, centrifugation
Impeller, furnace roof motor and axial wheel composition, furnace bottom motor and centrifugal impeller are mounted on bottom of the barrel, furnace roof motor and axis stream leaf
Wheel is mounted on bell.
Preferably, the bottom of the interior bucket and the bottom of insulating layer are bonded to each other, and heating device heats interior bucket, and are heated
Device uses electric-heating-wire-heating.
Preferably, strong device for cooling is installed, strong device for cooling introduces cold wind outside furnace the outside of interior bucket in said tub.
Preferably, the upper end of the bell is equipped with probe, exhaust pipe and positioning device.
Preferably, the other end screw of the chain is fixed with cylinder, and the flexible drive chain movement of cylinder, chain fortune
It moves so that bell opens or closes.
The beneficial effects of the utility model are:
1, the utility model, by being all disposed with convection current impeller in annealing furnace bottom and top, so that convection current is more smooth, furnace
Interior convection current air quantity is bigger, and in-furnace temperature is more uniform, and convection current range is bigger in furnace, and convection current dead angle is less.
2, the utility model, by the actual operation process, controlling and being supervised in real time by the probe on bell
The oxygen content in interior bucket in atmosphere is surveyed, the interior carbon potential so that measuring and calculating is come out of the stove.When carbon potential is low in interior bucket, increase the first for being passed through interior bucket
Alcohol cracking gas increases the nitrogen for being passed through interior bucket, so that the carbon potential in interior bucket can control certain when carbon potential is high in interior bucket
In interval range, so that the wire rod hardness scattered error after annealing is small, and the wire rod neither decarburization nor carburetting after annealing, production
Wire quality is good.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of convection type spheroidizing annealing furnace main view；
Fig. 2 be the utility model proposes a kind of convection type spheroidizing annealing furnace top view.
In figure: 1 convection barrel, 2 interior buckets, 3 outer barrels, the last 31 device for cooling, 4 bells, 41 oxygen probes, 42 exhaust pipes, 43 positioning dresses
It sets, 5 cantilevers, 6 rotating seats, 7 convection devices, 71 furnace bottom motors, 72 centrifugal impellers, 73 furnace roof motors, 74 axial wheels, 8 heat preservations
Layer, 9 heating devices, 10 compress button.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of spheroidizing annealing furnace of convection type, including convection barrel 1, the outer end side wall peace of the convection barrel 1
Equipped with interior bucket 2, the outer end side wall of interior bucket 2 is equipped with outer barrel 3, is equipped with strong device for cooling 31 in outer barrel 3, and strong device for cooling 31 is outside furnace
Cold wind introduces the outside of interior bucket 2, and the inner wall of outer barrel 3 is fixedly connected with insulating layer 8, and the top of insulating layer 8 is equipped with heating device
9, the bottom of interior bucket 2 and the bottom of insulating layer 8 are bonded to each other, and heating device 9 heats interior bucket 2, and heating device 9 uses electric heating
Silk heating, the top of interior bucket 2 are equipped with bell 4, and the upper end of bell 4 is equipped with probe 41, exhaust pipe 42 and positioning device 43, and
Bell 4 is sealed by compressing button 10 and interior bucket 2, and the outer end upper wall of outer barrel 3 is equipped with rotating seat 6, the upper end of rotating seat 6 vertically
Cantilever 5 is installed, cantilever 5 is connected with bell 4 by chain, and the other end screw of chain is fixed with cylinder, and cylinder is flexible
Chain movement is driven, chain movement opens or closes bell 4, and the upper end of bell 4 is equipped with a part of convection device 7,
Convection device 7 is made of furnace bottom motor 71, centrifugal impeller 72, furnace roof motor 73 and axial wheel 74, furnace bottom motor 71 and centrifugation
Impeller 72 is mounted on 2 bottom of interior bucket, and furnace roof motor 73 and axial wheel 74 are mounted on bell 4.
Carbon-potential control technique when specifically used, in the spheroidizing annealing furnace of the utility model, comprising the following steps:
S1, the wire rod annealed will be needed to be put into spheroidizing annealing furnace, the internal gas of interior bucket 2 is air at this time；
S2, when spheroidizing annealing furnace is heated up, with nitrogen displacement interior bucket 2 inside air, displaced process is:
Furnace roof motor 73 and furnace bottom motor 71 start simultaneously, and furnace roof axial wheel 74 and furnace bottom centrifugal impeller 72 is driven to rotate respectively,
Air in convection barrel 1 is under the action of furnace bottom centrifugal impeller 72 by being passed between interior bucket 2 and convection barrel 1 in convection barrel 1；
S3, when the temperature in interior bucket 2 is increased to 580 DEG C, using methanol decomposition gas by inside interior bucket 2 nitrogen replace
Out, the CO2 of the H2 and 1% for the CO and 66% that the specific ingredient in methanol decomposition gas is 33%；
S4, after the completion of annealing process, and when temperature is down to 570 degree or so in interior bucket 2, then in nitrogen displacement interior bucket 2
Dissociated methanol gas, be warming up to annealing temperature until heat preservation terminate be cooled to 570 degree or so when, 2 domestic demand one of interior bucket leads directly to first
Alcohol cracking gas, to guarantee the air pressure in interior bucket 2 as positive pressure；
S5, the oxygen content inside interior bucket 2 is detected by being mounted on the probe 41 of 4 upper end of bell in annealing process, led to
The measurement of oxygen content is crossed to calculate the carbon potential in interior bucket 2, and the intake by changing methanol decomposition gas and nitrogen makes
The carbon potential of interior bucket 2 is maintained in a section, when the inside carbon potential of interior bucket 2 is low, increases the methanol decomposition gas for being passed through interior bucket 2,
When the inside carbon potential of interior bucket 2 is high, increase the nitrogen for being passed through interior bucket 2；
S6, when nitrogen displacement after the completion of, when temperature can be reduced to 500 degree or so in interior bucket 2, wire rod complete annealing process be
It can come out of the stove.
Embodiment one: convection barrel 1, interior bucket 2 and outer barrel are all drum type, and outer barrel is arranged in outermost, and convection barrel 1 is arranged in
Most inner side, interior bucket 2 are arranged between convection barrel 1 and outer barrel.Insulating layer 8,2 lower part of interior bucket and insulating layer are installed on outer barrel inner wall
The fitting of 8 bottoms.Heating device 9 is installed on insulating layer 8, heating device 9 heats interior bucket 2.Bell 4 is mounted on the top of interior bucket 2
Portion, and sealed by compressing button 10 and interior bucket 2, make the container for becoming a sealing inside interior bucket 2.Rotating seat 6 is vertically-mounted
On outer barrel outer wall top, cantilever 5 is mounted on rotating seat 6, and cantilever 5 is connect by chain with bell 4.The chain other end and cylinder
Connection, the flexible drive chain movement of cylinder, chain movement conveniently make to open and close movement by bell 4, also installs on bell 4
Have positioning device 43, positioning device 43 guarantees bell 4 and interior bucket 2 with one heart, convection device 7 by furnace bottom motor 71, centrifugal impeller 72,
Furnace roof motor 73 and axial wheel 74 form, and wherein furnace bottom motor 71 and centrifugal impeller 72 are mounted on 2 bottom of interior bucket, furnace roof motor
73 and axial wheel 74 be mounted on bell 4；
Embodiment two: under the action of motor, so that cylinder extends, the elongation of cylinder is so that chain moves upwards, chain
Movement so that bell 4 is opened, the wire rod annealed will be needed to be put into spheroidizing annealing furnace, using heating device 9 to interior bucket 2
Be internally heated, during interior bucket 2 is heated, be passed through nitrogen in the inside of interior bucket 2, by the air in interior bucket 2 from
It is discharged in the exhaust pipe 42 of 4 upper end of bell, during being passed through nitrogen to interior bucket 2, starts furnace roof motor 73 and furnace bottom motor
71, and drive furnace roof axial wheel 74 and 72 turn of furnace bottom centrifugal impeller dynamic respectively, the air in convection barrel 1 is centrifuged leaf in furnace bottom
By being passed between interior bucket 2 and convection barrel 1 in convection barrel 1 under the action of wheel 72, air and move upwards from 4 upper end of bell
It is discharged in exhaust pipe 42, has deflector outside furnace bottom centrifugal impeller 72.Deflector is the steel plate arranged by certain angle, can be
The nitrogen that furnace bottom centrifugal impeller 72 comes out is divided into several pieces, and makes its movement of spinning, and the gas under bell 4 is in furnace roof axis stream leaf
The movement in convection barrel 1, supplements the air loss in convection barrel 1 under the action of wheel 74, and nitrogen is in furnace roof axial wheel 74 in furnace
With circulatory motion is carried out under the action of furnace bottom centrifugal impeller 72 so that gas conversion it is more abundant, during heating, due to
The incomplete and wire surface of nitrogen displacement has micro-moisture, when entering methanol decomposition gas in interior bucket 2, dissociated methanol gas
CO in body can be combined with the oxygen molecule in interior bucket 2, generate CO2, and when the CO2 in interior bucket 2 is more than a certain amount of, CO2 can make line
Material skin decarburization, at this time can by the probe on the bell 4 come the oxygen content in atmosphere in real-time monitoring interior bucket 2, thus
Calculate interior carbon potential of coming out of the stove, when carbon potential is low in interior bucket 2, increases the methanol decomposition gas for being passed through interior bucket 2, when carbon potential in interior bucket 2
Gao Shi, the nitrogen that increase is passed through interior bucket 2 are passed through methanol decomposition gas into interior bucket 2 when the temperature degree of rising in interior bucket 2,
The CO2 of the H2 and 1% of CO and 66% or so that methanol decomposition gas is 33% replaces the nitrogen in interior bucket 2, in interior bucket 2
Temperature be reduced to degree Celsius before when, 2 domestic demand one of interior bucket leads directly to dissociated methanol gas, to guarantee that interior bucket 2 for positive pressure, works as annealing
Process completes nodularization, and in interior bucket 2 when temperature degree of being down to or so, then with the methanol decomposition gas in nitrogen displacement interior bucket 2, works as nitrogen
After the completion of gas replaces methanol decomposition gas completely, in interior bucket 2 temperature will degree of being reduced to or so when, when annealing curve proceeds to
When the strong cold stage, strong device for cooling 31 is opened, strong device for cooling 31 outside the outer cold wind introduction interior bucket 2 of furnace, with cold wind outside furnace to interior bucket 2 into
Row cooling.Convection device 7 is also being run at this time, in interior bucket 2 hot wind and interior bucket 2 carry out heat exchange, to reduce interior bucket 2
Interior hot blast temperature, wire rod, which completes annealing process, to come out of the stove.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of spheroidizing annealing furnace of convection type, including convection barrel (1), which is characterized in that the outer end side wall of the convection barrel (1)
It is equipped with interior bucket (2), the outer end side wall of interior bucket (2) is equipped with outer barrel (3), and the inner wall of outer barrel (3) is fixedly connected with insulating layer
(8), the top of insulating layer (8) is equipped with heating device (9), is equipped at the top of interior bucket (2) bell (4), and bell (4) passes through
Button (10) and interior bucket (2) are compressed to seal, the outer end upper wall of outer barrel (3) is equipped with rotating seat (6) vertically, rotating seat (6) it is upper
End be equipped with cantilever (5), cantilever (5) is connected with bell (4) by chain, the convection device (7) by furnace bottom motor (71), from
In lobus cardiacus wheel (72), furnace roof motor (73) and axial wheel (74) composition, furnace bottom motor (71) and centrifugal impeller (72) are mounted on
Bucket (2) bottom, furnace roof motor (73) and axial wheel (74) are mounted on bell (4).
2. a kind of spheroidizing annealing furnace of convection type according to claim 1, which is characterized in that the bottom of the interior bucket (2)
It is bonded to each other with the bottom of insulating layer (8), heating device (9) heats interior bucket (2), and heating device (9) is added using heating wire
Heat.
3. a kind of spheroidizing annealing furnace of convection type according to claim 1, which is characterized in that said tub is installed on (3)
Have strong device for cooling (31), strong device for cooling (31) introduces cold wind outside furnace the outside of interior bucket (2).
4. a kind of spheroidizing annealing furnace of convection type according to claim 1, which is characterized in that the upper end of the bell (4)
It is equipped with probe (41), exhaust pipe (42) and positioning device (43).
5. a kind of spheroidizing annealing furnace of convection type according to claim 1, which is characterized in that the other end spiral shell of the chain
Nail is fixed with cylinder, and the flexible drive chain movement of cylinder, chain movement open or close bell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820398042.9U CN208346217U (en) | 2018-03-23 | 2018-03-23 | A kind of spheroidizing annealing furnace of convection type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820398042.9U CN208346217U (en) | 2018-03-23 | 2018-03-23 | A kind of spheroidizing annealing furnace of convection type |
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| Publication Number | Publication Date |
|---|---|
| CN208346217U true CN208346217U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820398042.9U Expired - Fee Related CN208346217U (en) | 2018-03-23 | 2018-03-23 | A kind of spheroidizing annealing furnace of convection type |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315536A (en) * | 2018-03-23 | 2018-07-24 | 山翁工业炉(嘉善)有限公司 | A kind of spheroidizing annealing furnace of convection type and its carbon-potential control technique in stove |
| CN109852784A (en) * | 2019-02-18 | 2019-06-07 | 刘昊 | A kind of well formula wire rod annealing furnace |
| CN110184425A (en) * | 2019-06-24 | 2019-08-30 | 浙江日星标准件有限公司 | A kind of high-intensity fasteners isothermal spheroidizing cold-heading molding method |
-
2018
- 2018-03-23 CN CN201820398042.9U patent/CN208346217U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315536A (en) * | 2018-03-23 | 2018-07-24 | 山翁工业炉(嘉善)有限公司 | A kind of spheroidizing annealing furnace of convection type and its carbon-potential control technique in stove |
| CN109852784A (en) * | 2019-02-18 | 2019-06-07 | 刘昊 | A kind of well formula wire rod annealing furnace |
| CN109852784B (en) * | 2019-02-18 | 2021-08-06 | 嘉善三永电炉工业有限公司 | Well type annealing furnace for wire rod |
| CN110184425A (en) * | 2019-06-24 | 2019-08-30 | 浙江日星标准件有限公司 | A kind of high-intensity fasteners isothermal spheroidizing cold-heading molding method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |