CN108977645B - A kind of improved annealing furnace control system - Google Patents
A kind of improved annealing furnace control system Download PDFInfo
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- CN108977645B CN108977645B CN201811113756.1A CN201811113756A CN108977645B CN 108977645 B CN108977645 B CN 108977645B CN 201811113756 A CN201811113756 A CN 201811113756A CN 108977645 B CN108977645 B CN 108977645B
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- chamber
- annealing furnace
- heating
- niproll
- control system
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention proposes a kind of improved annealing furnace control systems, including annealing furnace, heating chamber is equipped in annealing furnace, incubation cavity, chilling chamber and slow cooling chamber, heating chamber, incubation cavity, four temperature sensors are respectively equipped in chilling chamber and slow cooling chamber, heating chamber, incubation cavity, an air inlet pipe is respectively equipped at the top of chilling chamber and slow cooling chamber, each air inlet pipe passes through an electric butterfly valve control air inflow respectively, heating chamber, incubation cavity, chilling chamber and slow cooling chamber are respectively equipped with a heating mechanism, it is heated by heating mechanism, the output end of four temperature sensors is connected with a PLC controller respectively, the output end of PLC controller respectively with four electric butterfly valves, four heating mechanisms are connected, improve the accuracy of annealing furnace control, improve the thermal efficiency, it is energy saving to achieve the purpose that.
Description
Technical field
The present invention relates to a kind of control system, in particular to a kind of improved annealing furnace control system.
Background technique
With the continuous development of spheroidal graphite cast-iron technology, spheroidal graphite cast-iron gradually replaces cast steel, becomes a kind of novel metal material
Material, has been widely used in engineering machinery, injection molding machine base parts and components, die casting machine base parts and components and wind power foundation or pass
Key components etc..
It needs to make annealing treatment it in the production process of spheroidal graphite cast-iron, annealing refers to metal being heated slowly to one
Determine temperature, keeps enough time, it is then cooling with Reasonable Speed.Purpose is to reduce hardness, improves machinability；It eliminates remaining
Stress, stable dimensions reduce deformation and crackle tendency；Crystal grain is refined, tissue is adjusted, eliminates tissue defects.In order to have pipeline
There is above-mentioned performance, in pipeline production, generally requires to make annealing treatment pipeline, however the annealing currently used for pipeline annealing
Furnace can not carry out continuous annealing operation, i.e., current annealing furnace is when annealing to pipeline, it is necessary first to by will manually manage
Road is placed into annealing furnace, is then heated by annealing furnace to pipeline, and when pipeline is heated to certain temperature, annealing furnace stops
It only heats, and with pipeline Slow cooling, is taken out in annealing furnace after the completion of pipeline annealing, then by pipeline, thus real
Now to the annealing of pipeline.However in above-mentioned pipeline annealing process, need that manually pipeline is put into annealing furnace, and needs
Will be by the way that manually pipeline be taken out from annealing furnace, there are large labor intensity, ineffective disadvantage, while annealing furnace needs
Repeat heating and cooling process, not only wastes electric power, increase production cost, and have the shortcomings that annealing efficiency is low.
Summary of the invention
The present invention proposes a kind of improved annealing furnace control system regarding to the issue above, improves the essence of annealing furnace control
Exactness improves the thermal efficiency, energy saving to achieve the purpose that.
Specific technical solution is as follows:
A kind of improved annealing furnace control system, including annealing furnace are equipped with heating chamber, incubation cavity, chilling chamber in annealing furnace
With slow cooling chamber, be respectively equipped in heating chamber, incubation cavity, chilling chamber and slow cooling chamber four temperature sensors, heating chamber, incubation cavity,
An air inlet pipe is respectively equipped at the top of chilling chamber and slow cooling chamber, each air inlet pipe passes through an electric butterfly valve control air inlet respectively
Amount, heating chamber, incubation cavity, chilling chamber and slow cooling chamber are respectively equipped with a heating mechanism, are heated by heating mechanism, and four
The output end of temperature sensor is connected with a PLC controller respectively, the output end of PLC controller respectively with four electronic butterflies
Valve, four heating mechanisms are connected.
Further, heating mechanism is electric heater, and air inlet pipe is passed through the nitrogen of heating into annealing furnace.
Further, heating mechanism is burner, and the lower section of air inlet pipe is arranged in burner, is led to for lighting in air inlet pipe
The oxygen entered.
Further, the heating temperature of heating chamber is 900-1200 DEG C.
Further, the heating temperature of incubation cavity is 800-1000 DEG C.
Further, the heating temperature of chilling chamber is 650-850 DEG C.
Further, the heating temperature of slow cooling chamber is 400-650 DEG C.
Further, annealing furnace includes furnace body and conveying mechanism, is divided into heating chamber by three demarcation plates in furnace body, protects
Warm chamber, chilling chamber and slow cooling chamber are respectively equipped with inlet port and outlet port on the side wall of furnace body, are respectively equipped with one on each demarcation plate
A punishment in advance opening；
Conveying mechanism includes two idler wheels, and a conveyer belt is fixed in tensioning between two idler wheels, and conveyer belt is equipped with multiple
Clamping device, two idler wheels are located at the outside of the inlet port and outlet port of furnace body, keep the conveyer belt being located above removable
Setting in furnace body, one of idler wheel pass through first motor drive rotation；
Clamping device includes the first clamp assemblies and the second clamp assemblies；
First clamp assemblies include two the first support frames, are rotatably equipped with the first clamping between two the first support frames
Roller, the first niproll are cylindrical structure；
Second clamp assemblies include two the second support frames, are rotatably equipped with the second clamping between two the second support frames
Roller, the second niproll are cylindrical structure, and the centre of the second niproll is equipped with a circle rack gear, and rack gear is by chain and is fixed on the
Transmission gear on two motors is connected, and the second motor drives the rotation of the second niproll；
First niproll and the second niproll are used to support and rotate the ductile iron pipe of placement and top.
Further, the two sides of the rack gear of the second niproll are respectively equipped with first bulge loop of circle and second bulge loop of circle,
First bulge loop is located at the outside of the second bulge loop, and the height of the first bulge loop is greater than the height of the second bulge loop, on the outer wall of the second bulge loop
At circle-shaped multiple shift plates that are equipped with, shift plate prolongs the axial setting of the second niproll.
Further, PLC controller is also connected with first motor and the second motor respectively.
Further, the control method of annealing furnace control system is as follows:
(1) temperature of each chamber of temperature sensor real-time perception annealing furnace, and pass the information on to PLC controller, PLC
Controller passes through the temperature information received, judges the height of temperature value, then by controlling to adjust electric butterfly valve and heating mechanism
To adjust temperature；
(2) for conveying mechanism during conveying ductile iron pipe, PLC controller adjusts the revolving speed of first motor to adjust
The conveying speed of ductile iron pipe adjusts the rotational velocity of ductile iron pipe by adjusting the revolving speed of the second motor.
The invention has the benefit that
(1) present invention improves the accuracy of annealing furnace control, improves the thermal efficiency, energy saving to achieve the purpose that；
(2) setting of conveying mechanism further improves the uniformity of annealing, improves annealing effect.
Detailed description of the invention
Fig. 1 is present system figure.
Fig. 2 is annealing furnace cross-sectional view.
Fig. 3 is the first clamp assemblies side view.
Fig. 4 is the second clamp assemblies side view.
Specific embodiment
It is clear to be more clear technical solution of the present invention, below the present invention is described further, any pair of sheet
The technical characteristic of inventive technique scheme carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within the scope of the present invention.
Appended drawing reference
Annealing furnace 1, heating chamber 2, incubation cavity 3, chilling chamber 4, slow cooling chamber 5, temperature sensor 6, air inlet pipe 7, electric butterfly valve
8, heating mechanism 9, demarcation plate 10, feed inlet 11, discharge port 12, punishment in advance opening 13, idler wheel 14, conveyer belt 15, clamping device 16,
First clamp assemblies 17, the second clamp assemblies 18, the first support frame 19, the first niproll 20, the clamping of the second support frame 21, second
Roller 22, rack gear 23, chain 24, the second motor 25, transmission gear 26, the first bulge loop 27, the second bulge loop 28, shift plate 29, spheroidal graphite casting
Iron pipe 30.
A kind of improved annealing furnace control system, including annealing furnace 1 are equipped with heating chamber 2, incubation cavity 3, chilling in annealing furnace
Chamber 4 and slow cooling chamber 5 are respectively equipped with four temperature sensors 6, heating chamber, guarantors in heating chamber, incubation cavity, chilling chamber and slow cooling chamber
An air inlet pipe 7 is respectively equipped at the top of warm chamber, chilling chamber and slow cooling chamber, each air inlet pipe passes through an electric butterfly valve 8 respectively
Air inflow is controlled, heating chamber, incubation cavity, chilling chamber and slow cooling chamber are respectively equipped with a heating mechanism 9, carry out by heating mechanism
Heating, the output end of four temperature sensors is connected with a PLC controller respectively, the output end of PLC controller respectively with
Four electric butterfly valves, four heating mechanisms are connected.
Further, heating mechanism is electric heater, and air inlet pipe is passed through the nitrogen of heating into annealing furnace.
Further, heating mechanism is burner, and the lower section of air inlet pipe is arranged in burner, is led to for lighting in air inlet pipe
The oxygen entered.
Further, the heating temperature of heating chamber is 900-1200 DEG C.
Further, the heating temperature of incubation cavity is 800-1000 DEG C.
Further, the heating temperature of chilling chamber is 650-850 DEG C.
Further, the heating temperature of slow cooling chamber is 400-650 DEG C.
Further, annealing furnace includes furnace body and conveying mechanism, in furnace body by three demarcation plates 10 be divided into heating chamber,
Incubation cavity, chilling chamber and slow cooling chamber, are respectively equipped with feed inlet 11 and discharge port 12 on the side wall of furnace body, on each demarcation plate respectively
Equipped with a punishment in advance opening 13；
Conveying mechanism includes two idler wheels 14, and a conveyer belt 15 is fixed in tensioning between two idler wheels, and conveyer belt is equipped with
Multiple clamping devices 16, two idler wheels are located at the outside of the inlet port and outlet port of furnace body, make the conveyer belt being located above
It is movably disposed in furnace body, one of idler wheel is driven by first motor and rotated；
Clamping device includes the first clamp assemblies 17 and the second clamp assemblies 18；
First clamp assemblies include two the first support frames 19, are rotatably equipped with the first folder between two the first support frames
Roller 20 is held, the first niproll is cylindrical structure；
Second clamp assemblies include two the second support frames 21, are rotatably equipped with the second folder between two the second support frames
Hold roller 22, the second niproll is cylindrical structure, and the centre of the second niproll is equipped with a circle rack gear 23, rack gear by chain 24 with
The transmission gear 26 being fixed on the second motor 25 is connected, and the second motor drives the rotation of the second niproll；
First niproll and the second niproll are used to support and rotate the ductile iron pipe of placement and top.
Further, the two sides of the rack gear of the second niproll are respectively equipped with first bulge loop of circle 27 and second bulge loop of circle
28, the first bulge loop is located at the outside of the second bulge loop, and the height of the first bulge loop is greater than the height of the second bulge loop, the outer wall of the second bulge loop
On at circle-shaped be equipped with multiple shift plates 29, shift plate prolongs the axial setting of the second niproll, and shift plate is for the casting of supplementary tumbler spheroidal graphite
Iron pipe 30 rotates.
Further, PLC controller is also connected with first motor and the second motor respectively.
Further, the control method of annealing furnace control system is as follows:
(1) temperature of each chamber of temperature sensor real-time perception annealing furnace, and pass the information on to PLC controller, PLC
Controller passes through the temperature information received, judges the height of temperature value, then by controlling to adjust electric butterfly valve and heating mechanism
To adjust temperature；
(2) for conveying mechanism during conveying ductile iron pipe, PLC controller adjusts the revolving speed of first motor to adjust
The conveying speed of ductile iron pipe adjusts the rotational velocity of ductile iron pipe by adjusting the revolving speed of the second motor.
Claims (9)
1. a kind of improved annealing furnace control system, it is characterized in that, including annealing furnace, be equipped in annealing furnace heating chamber, incubation cavity,
Chilling chamber and slow cooling chamber are respectively equipped with four temperature sensors, heating chamber, guarantors in heating chamber, incubation cavity, chilling chamber and slow cooling chamber
An air inlet pipe is respectively equipped at the top of warm chamber, chilling chamber and slow cooling chamber, each air inlet pipe passes through an electric butterfly valve control respectively
Air inflow processed, heating chamber, incubation cavity, chilling chamber and slow cooling chamber are respectively equipped with a heating mechanism, are added by heating mechanism
Heat, the output end of four temperature sensors are connected with a PLC controller respectively, and the output end of PLC controller is respectively with four
A electric butterfly valve, four heating mechanisms are connected；
Annealing furnace includes furnace body and conveying mechanism, in furnace body by three demarcation plates be divided into heating chamber, incubation cavity, chilling chamber and
Slow cooling chamber is respectively equipped with inlet port and outlet port on the side wall of furnace body, and a punishment in advance opening is respectively equipped on each demarcation plate；
Conveying mechanism includes two idler wheels, and a conveyer belt is fixed in tensioning between two idler wheels, and conveyer belt is equipped with multiple clampings
Mechanism, two idler wheels are located at the outside of the inlet port and outlet port of furnace body, set the conveyer belt being located above movably
It sets in furnace body, one of idler wheel is driven by first motor and rotated；
Clamping device includes the first clamp assemblies and the second clamp assemblies；
First clamp assemblies include two the first support frames, are rotatably equipped with the first niproll between two the first support frames,
First niproll is cylindrical structure；
Second clamp assemblies include two the second support frames, are rotatably equipped with the second niproll between two the second support frames,
Second niproll is cylindrical structure, and the centre of the second niproll is equipped with a circle rack gear, and rack gear is by chain and is fixed on second
Transmission gear on motor is connected, and the second motor drives the rotation of the second niproll；
First niproll and the second niproll are used to support and rotate the ductile iron pipe of placement and top；
The two sides of the rack gear of second niproll are respectively equipped with first bulge loop of circle and second bulge loop of circle, and the first bulge loop is located at the
The outside of two bulge loops, the height of the first bulge loop are greater than the height of the second bulge loop, are equipped on the outer wall of the second bulge loop at circle-shaped
Multiple shift plates, shift plate prolong the axial setting of the second niproll.
2. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, heating mechanism is electric heater,
Air inlet pipe is passed through the nitrogen of heating into annealing furnace.
3. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, heating mechanism is burner, combustion
The lower section of air inlet pipe is arranged in burner, for lighting the oxygen being passed through in air inlet pipe.
4. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, the heating temperature of heating chamber is
900-1200℃。
5. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, the heating temperature of incubation cavity is
800-1000℃。
6. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, the heating temperature of chilling chamber is
650-850℃。
7. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, the heating temperature of slow cooling chamber is
400-650℃。
8. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, PLC controller is also respectively with the
One motor and the second motor are connected.
9. a kind of improved annealing furnace control system as described in claim 1, it is characterized in that, the control of annealing furnace control system
Method is as follows:
(1) temperature of each chamber of temperature sensor real-time perception annealing furnace, and pass the information on to PLC controller, PLC control
Device passes through the temperature information received, judges the height of temperature value, then adjust by controlling to adjust electric butterfly valve and heating mechanism
Whole temperature；
(2) for conveying mechanism during conveying ductile iron pipe, PLC controller adjusts the revolving speed of first motor to adjust spheroidal graphite
The conveying speed of cast iron pipe adjusts the rotational velocity of ductile iron pipe by adjusting the revolving speed of the second motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113756.1A CN108977645B (en) | 2018-09-25 | 2018-09-25 | A kind of improved annealing furnace control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113756.1A CN108977645B (en) | 2018-09-25 | 2018-09-25 | A kind of improved annealing furnace control system |
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| CN108977645A CN108977645A (en) | 2018-12-11 |
| CN108977645B true CN108977645B (en) | 2019-10-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110241368A (en) * | 2019-07-01 | 2019-09-17 | 沛县大屯电石厂 | A kind of annealing device suitable for nickel alloy manufacture |
| CN116772096A (en) * | 2023-06-15 | 2023-09-19 | 浙江西亚特电子材料有限公司 | Low-temperature filling control device and method for dichlorosilane |
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|---|---|---|---|---|
| CN202164333U (en) * | 2011-07-21 | 2012-03-14 | 新兴铸管股份有限公司 | Continuous annealing furnace for ductile iron pipes |
| CN203904404U (en) * | 2014-05-09 | 2014-10-29 | 郭羽靖 | Intelligent control annealing furnace |
| CN108411090A (en) * | 2018-03-30 | 2018-08-17 | 四川省川建管道有限公司 | A kind of the cast tube annealing furnace and its method for annealing of flame vortex |
-
2018
- 2018-09-25 CN CN201811113756.1A patent/CN108977645B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164333U (en) * | 2011-07-21 | 2012-03-14 | 新兴铸管股份有限公司 | Continuous annealing furnace for ductile iron pipes |
| CN203904404U (en) * | 2014-05-09 | 2014-10-29 | 郭羽靖 | Intelligent control annealing furnace |
| CN108411090A (en) * | 2018-03-30 | 2018-08-17 | 四川省川建管道有限公司 | A kind of the cast tube annealing furnace and its method for annealing of flame vortex |
Non-Patent Citations (1)
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| 球墨铸铁管连续式退火炉的设计与应用;刘波 等;《金属热处理》;20091231;第34卷(第12期);第110-114页 * |
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Address after: 277700, 206 National Road south of Shang Yan Town, Lan Ling County, Linyi, Shandong province. Patentee after: Guoming Casting Pipe Co.,Ltd. Address before: 276000 south of national highway 206, Shangyan Town, Lanling County, Linyi City, Shandong Province Patentee before: SHANDONG GUOMING DUCTILEIRON PIPES TECHNOLOGY Co.,Ltd. |