CN101824518A - Roll-bar type isothermal annealing energy-saving furnace - Google Patents
Roll-bar type isothermal annealing energy-saving furnace Download PDFInfo
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- CN101824518A CN101824518A CN201010187996A CN201010187996A CN101824518A CN 101824518 A CN101824518 A CN 101824518A CN 201010187996 A CN201010187996 A CN 201010187996A CN 201010187996 A CN201010187996 A CN 201010187996A CN 101824518 A CN101824518 A CN 101824518A
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Abstract
The invention discloses a roll-bar type isothermal annealing energy-saving furnace comprising a furnace body and a roller path for a workpiece to get in and out of the furnace body and roll in the furnace body, wherein the roller path is of a roll-bar type, and two ends of the roll bar penetrate out of the furnace body. The invention has the main advantage that the roll-bar type isothermal annealing energy-saving furnace can better monitor the temperature of each greenhouse so that better temperature control performance is achieved.
Description
Technical field
The present invention relates to a kind of roll-bar type isothermal annealing energy-saving furnace, belong to thermal treatment process equipment technology field.
Background technology
Spheroidizing Annealing is meant the sheet cementite in the steel Medium pearlite and proeutectoid cementite is converted into the spherical or granular carbide that is uniformly distributed on the ferrite matrix to obtain the heat treating method of globular pearlite, is a kind of of underannealing.Usually, the isothermal spheroidizing treatment process is adopted in the annealing of bearings parts, to obtain tiny and uniform nodularization pearlitic structure.Yet existing equipment technology makes that the annealing process cycle of product is long, and energy consumption is big, and unstable product quality, and the hardness scattered error is big.Energy-saving and cost-reducing, under the requirement of the green industry of development, need a kind of less energy-consumption, high efficiency isothermal annealing stove.In addition, the linked transmission that present annealing furnace adopts, its temperature control is bad.
Summary of the invention
The purpose of this invention is to provide a kind of less energy-consumption, the energy-conservation stove of high efficiency isothermal annealing.
Purpose of the present invention realizes by following technical scheme is provided:
A kind of roll-bar type isothermal annealing energy-saving furnace comprises body of heater, and the feeding preheating chamber is used to preheat the workpiece that enters body of heater; The heated constant temperature chamber is used for heating the workpiece after the feeding preheating chamber preheats and makes workpiece keep constant temperature; Forced cooling chamber is used for cooling off the workpiece after the heating of heated constant temperature chamber; Isothermal chamber is used for remaining on the temperature of the cooled workpiece of forced cooling chamber; The discharging heat exchange chamber is used for the workpiece cooling after keeping temperature in isothermal chamber; Heat exchange system is used for the waste heat that discharging heat exchange chamber workpiece distributes is transported to the feeding preheating chamber to preheat workpiece; Also comprise: one is used for reaching the raceway that moves at body of heater for workpiece turnover body of heater, and described raceway is the roller form, and the two ends of described roller pass described preheating chamber, heated constant temperature chamber, forced cooling chamber, isothermal chamber, discharging heat exchange chamber respectively.
Further, also comprise the blower fan recycle system, the both sides of the raceway of described heated constant temperature chamber and described isothermal chamber and bottom are evenly distributed with a plurality of heating units, the top is provided with the blower fan recycle system, the blast inlet of the described blower fan recycle system and air outlet all are positioned at body of heater, and described blast inlet is perpendicular to plane, raceway place, and air outlet is parallel to plane, raceway place.
Further, the outer setting of forced cooling chamber has blower fan, cooling tube and built-in circulation cooling frequency conversion fan, is provided with gas piping in strong cold section cooling room.
Further, described heat exchange system comprises the intake ducting at discharging heat exchange chamber place, the gas exhaust duct at place, feeding preheating chamber, the gas pipeline that connects recent pipeline and gas exhaust duct, and extracting the adjustable frequency conversion fan of air quantity, described frequency conversion fan is sent to the feeding preheating chamber with the heat of discharging heat exchange chamber by gas pipeline.
Further, described feeding preheating chamber, the heated constant temperature chamber is provided with insulated wall between the forced cooling chamber.
Beneficial effect of the present invention is mainly reflected in: roll-bar type isothermal annealing energy-saving furnace can be monitored the temperature in each greenhouse better, makes its temperature control better.
Description of drawings
Fig. 1 is the synoptic diagram of specific embodiments of the invention.
Wherein:
1 feed mechanism, 11 thermostatic chambers
Feeding preheating chambers 3 13 forced cooling chamber
The strong cold blast engine of 5 gas exhaust ducts, 15 frequency conversions
7 recirculation blowers, 17 isothermal chamber
9 heating chambers, 19 discharging Heat Rooms
21 intake ductings, 23 discharging mechanisms
25 rollers
Embodiment
Following with reference to the description of drawings specific embodiments of the invention.
With reference to Fig. 1, the isothermal annealing energy-saving stove body of specific embodiments of the invention is the energy-conservation stove of a kind of bearing parts push-plate formula continuous annealing, it has peripheral body of heater, also comprises feeding preheating chamber 3, is used for the raceway 25, heated constant temperature chamber (the heated constant temperature chamber can be further divided into heating chamber 9 and thermostatic chamber 11 again), forced cooling chamber 13, isothermal chamber 17, discharging heat exchange chamber 19 of input and output material and relevant heat exchange system, the blower fan recycle system etc.The raceway of this preferred embodiment adopts the roller form, and this roller vertically passes each greenhouse, can monitor the temperature in each greenhouse better like this, and confirms whether each greenhouse has problem, so that can carry out temperature control better.
Bearing parts continuous annealing energy-saving technique technological line is made up of pre-heating technique, rapid heating constant temperature technology, fast cold technology, isothermal process, heat-exchanging process.Concrete, workpiece is preheated to 300 to 500 ℃ by the feeding preheating chamber 3 that feed mechanism 1 enters the energy-conservation stove of isothermal annealing; The heated constant temperature chamber that enters the energy-conservation stove of isothermal annealing subsequently is heated to 770 to 830 ℃; After the heating, the forced cooling chamber 13 that workpiece enters the energy-conservation stove of isothermal annealing is cooled to 700 to 730 ℃; After the cooling, the isothermal chamber 17 that workpiece enters the energy-conservation stove of isothermal annealing keeps roughly constant for some time of its temperature; At last, the discharging heat exchange chamber 19 that workpiece enters the energy-conservation stove of isothermal annealing is cooled to below 650 ℃, leaves the energy-conservation stove of isothermal annealing by discharging mechanism 23 at last.
In this embodiment, feeding preheating chamber 3, heated constant temperature chamber, the some recirculation blowers 7 of forced cooling chamber 13 configurations, and the subregion insulated wall is set between each chamber, reduced the temperature effect between them, improved temperature-controlled precision, made and handle workpiece acquisition homogenizing Heating temperature, the cools tissue of homogenizing changes, reach and shorten the process time, UTILIZATION OF VESIDUAL HEAT IN, energy-saving and cost-reducing effect by rapid heating, cooling technology, equal thermal technology, heat transfer technology.
The both sides of the raceway of heated constant temperature chamber and described isothermal chamber 17 and bottom are evenly distributed with a plurality of heating units, top recirculation blower 7, form the blower fan recycle system, the blast inlet of the blower fan recycle system and air outlet all are positioned at body of heater, and described blast inlet is perpendicular to plane, raceway place, and air outlet is parallel to plane, raceway place.
In the enforcement of production technique, will be about to come out of the stove the heat of workpiece by related process by heat exchange system, extract by the variable blower fan recycle system, exchange to feeding preheating chamber 3; The indoor recirculation blower 7 of putting of heated constant temperature, the rapid and uniform heating workpiece is realized shortening the process time; The outer setting of forced cooling chamber 13 has the strong cold blast engine 15 of blower fan, cooling tube and built-in frequency conversion, and the multivariable control speed of cooling realizes the structural transformation uniformityization; Heat exchange system comprises the intake ducting 21 at discharging heat exchange chamber 19 places, the gas exhaust duct 5 at 3 places, feeding preheating chamber, the gas pipeline that connects intake ducting 21 and gas exhaust duct 5, and extracting the adjustable frequency conversion fan of air quantity, described frequency conversion fan is sent to feeding preheating chamber 3 with the heat of discharging heat exchange chamber 19 by gas pipeline.By some gas piping is set, and frequency conversion fan, realize the exchange of feeding preheating chamber and discharging heat exchange chamber thermal equilibrium.
Whole production process cycle 15-18 hour, shorten 6-8 hour than current technology, product energy consumption per ton reduces more than 40% than current technology; The product annealing quality, metallographic structure is even, and hardness is even, single-piece uniformity of hardness≤8HBW, uniformity of hardness≤12HBW by the gross.
What need understand is: above-mentioned explanation is not to be limitation of the present invention, and in the present invention conceived scope, the interpolation of being carried out, conversion, replacement etc. also should belong to protection scope of the present invention.
Claims (6)
1. a roll-bar type isothermal annealing energy-saving furnace comprises body of heater, it is characterized in that, also comprises: one is used for reaching the raceway that moves at body of heater for workpiece turnover body of heater, and described raceway is the roller form, and the two ends of described roller pass described body of heater.
2. roll-bar type isothermal annealing energy-saving furnace according to claim 1 is characterized in that, also comprises the feeding preheating chamber, is used to preheat the workpiece that enters body of heater; The heated constant temperature chamber is used for heating the workpiece after the feeding preheating chamber preheats and makes workpiece keep constant temperature; Forced cooling chamber is used for cooling off the workpiece after the heating of heated constant temperature chamber; Isothermal chamber is used for remaining on the temperature of the cooled workpiece of forced cooling chamber; The discharging heat exchange chamber is used for the workpiece cooling after keeping temperature in isothermal chamber; Heat exchange system is used for the waste heat that discharging heat exchange chamber workpiece distributes is transported to the feeding preheating chamber to preheat workpiece.
3. roll-bar type isothermal annealing energy-saving furnace according to claim 1, it is characterized in that, also comprise the blower fan recycle system, the both sides of the raceway of described heated constant temperature chamber and described isothermal chamber and bottom are evenly distributed with a plurality of heating units, the top is provided with the blower fan recycle system, the blast inlet of the described blower fan recycle system and air outlet all are positioned at body of heater, and described blast inlet is perpendicular to plane, raceway place, and air outlet is parallel to plane, raceway place.
4. roll-bar type isothermal annealing energy-saving furnace according to claim 1 is characterized in that, the outer setting of forced cooling chamber has blower fan, cooling tube and built-in circulation cooling frequency conversion fan, is provided with gas piping in strong cold section cooling room.
5. roll-bar type isothermal annealing energy-saving furnace according to claim 1, it is characterized in that, described heat exchange system comprises the intake ducting at discharging heat exchange chamber place, the gas exhaust duct at place, feeding preheating chamber, the gas pipeline that connects recent pipeline and gas exhaust duct, and extracting the adjustable frequency conversion fan of air quantity, described frequency conversion fan is sent to the feeding preheating chamber with the heat of discharging heat exchange chamber by gas pipeline.
6. roll-bar type isothermal annealing energy-saving furnace according to claim 1 is characterized in that, described feeding preheating chamber, and the heated constant temperature chamber is provided with insulated wall between the forced cooling chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010187996A CN101824518A (en) | 2010-06-01 | 2010-06-01 | Roll-bar type isothermal annealing energy-saving furnace |
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| CN201010187996A CN101824518A (en) | 2010-06-01 | 2010-06-01 | Roll-bar type isothermal annealing energy-saving furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080149A (en) * | 2010-11-26 | 2011-06-01 | 杭州金舟电炉有限公司 | Energy-saving full-automatic and atmosphere-controllable horizontal type annealing production line for discs |
| CN102808069A (en) * | 2011-06-02 | 2012-12-05 | 苏州工业园区胜龙电炉制造有限公司 | Oversize heat recovery-type push disc-type wire continuously and isothermally-balling and annealing furnace |
| CN103572027A (en) * | 2013-11-08 | 2014-02-12 | 张应江 | Synchronous aluminum alloy cast bar homogenization and cast bar heating treatment device and synchronous aluminum alloy cast bar homogenization and cast bar heating treatment method |
| CN109338083A (en) * | 2018-10-19 | 2019-02-15 | 许昌学院 | A kind of heat exchanger and bearing heat treatment method |
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| CN101121998A (en) * | 2007-09-14 | 2008-02-13 | 苏州工业园区华福科技有限公司 | Copper pipe roller bottom type continuous bright annealing furnace |
| CN101250678A (en) * | 2008-03-19 | 2008-08-27 | 苏州中门子科技有限公司 | Low stove pressure convection continuous roller bottom type annealing furnace and annealing technique |
| CN201343552Y (en) * | 2009-03-02 | 2009-11-11 | 郑东海 | Rolling rod type conveying structure in heat treatment equipment |
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2010
- 2010-06-01 CN CN201010187996A patent/CN101824518A/en active Pending
Patent Citations (3)
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| CN101121998A (en) * | 2007-09-14 | 2008-02-13 | 苏州工业园区华福科技有限公司 | Copper pipe roller bottom type continuous bright annealing furnace |
| CN101250678A (en) * | 2008-03-19 | 2008-08-27 | 苏州中门子科技有限公司 | Low stove pressure convection continuous roller bottom type annealing furnace and annealing technique |
| CN201343552Y (en) * | 2009-03-02 | 2009-11-11 | 郑东海 | Rolling rod type conveying structure in heat treatment equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080149A (en) * | 2010-11-26 | 2011-06-01 | 杭州金舟电炉有限公司 | Energy-saving full-automatic and atmosphere-controllable horizontal type annealing production line for discs |
| CN102080149B (en) * | 2010-11-26 | 2014-12-24 | 杭州金舟科技股份有限公司 | Energy-saving full-automatic and atmosphere-controllable horizontal type annealing production line for discs |
| CN102808069A (en) * | 2011-06-02 | 2012-12-05 | 苏州工业园区胜龙电炉制造有限公司 | Oversize heat recovery-type push disc-type wire continuously and isothermally-balling and annealing furnace |
| CN103572027A (en) * | 2013-11-08 | 2014-02-12 | 张应江 | Synchronous aluminum alloy cast bar homogenization and cast bar heating treatment device and synchronous aluminum alloy cast bar homogenization and cast bar heating treatment method |
| CN103572027B (en) * | 2013-11-08 | 2015-12-02 | 张应江 | Aluminium alloy cast rod homogenizing and casting rod heat synchronization processing apparatus and method |
| CN109338083A (en) * | 2018-10-19 | 2019-02-15 | 许昌学院 | A kind of heat exchanger and bearing heat treatment method |
| CN109338083B (en) * | 2018-10-19 | 2020-05-26 | 许昌学院 | Heat exchanger and bearing heat treatment method |
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Open date: 20100908 |