CN206772006U - A kind of energy-conservation and stable Medium frequency induction steel shell furnace - Google Patents
A kind of energy-conservation and stable Medium frequency induction steel shell furnace Download PDFInfo
- Publication number
- CN206772006U CN206772006U CN201720439671.7U CN201720439671U CN206772006U CN 206772006 U CN206772006 U CN 206772006U CN 201720439671 U CN201720439671 U CN 201720439671U CN 206772006 U CN206772006 U CN 206772006U
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- coil
- binding post
- crucible
- yoke
- faraday
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- 230000006698 induction Effects 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 238000004134 energy conservation Methods 0.000 title claims abstract description 12
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 12
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a kind of energy-conservation and stable Medium frequency induction steel shell furnace, belong to firing equipment field, it includes steelframe, crucible is installed, crucible is wrapped with furnace lining, electromagnetic induction coil is wound with furnace lining in steelframe, it is arranged yoke on electromagnetic induction coil, bell is set on the steelframe above crucible；It is characterised by：The top of yoke sets faraday's ring, faraday's ring be located at yoke top away from bell lower end distance 1/3rd at, faraday's ring is close to yoke setting；Electromagnetic induction coil is divided into the first coil arranged successively from top to bottom and the second coil, and first coil and the coiling of the second coil are in opposite direction；First binding post is set outside crucible, and the first binding post connects the inwall of crucible；Lateral electrode is set outside furnace lining, and lateral electrode connects the second binding post, and dc source is connected between the second binding post and the first binding post and forms measure loop.While this heating furnace DYNAMIC DISTRIBUTION electric current, magnetic field refraction is led back to inside induction coil, accident is avoided by detecting electric current.
Description
Technical field
The utility model belongs to firing equipment field, and in particular to a kind of energy-conservation and stable Medium frequency induction steel shell furnace.
Background technology
Medium Frequency Induction Heating Furnace is due to firing rate is fast, production efficiency is high, operating environment is good, the de- charcoal of oxidation is few and section
The advantages of material saving, it is widely used in the PROCESS FOR TREATMENT such as welding, annealing, quenching, diathermanous, covering automobile, zero, motorcycle
The industries such as part, railway track, Aero-Space, weapons manufacture, machine-building, electrical equipment manufacture and specialty metal processing.
Medium Frequency Induction Heating Furnace be it is a hold molten metal material to be heated in crucible, crucible periphery sets stove
Lining, then in the periphery coiling of furnace lining, by intermediate frequency power supply to coil electricity, carried out using the electromagnetic induction principle of coil
Heat the device of fusing.The box hat of body of heater is generally made up of steelframe, yoke and bell positioned at steelframe top, and yoke is used for guiding
The magnetic field trend of induction coil.During actual use, often due to various reasons form crackle in furnace lining and caused
Leak accident.If this accident can not be found in time, the lighter damages induction coil and the insulating barrier of yoke, and severe one makes sensing
The copper pipe of coil is burnt out, and the cooling water of high-temperature metal liquation and induction coil is in contact, and causes serious equipment breakdown, or even draw
Blast is played, jeopardizes personal safety.
In addition, in the course of the work, the magnetic field of yoke upper end scattering causes box hat upper end to generate heat to equipment always, lowers
The service life of box hat；Portion of energy is also have lost simultaneously, causes energy waste.And melting early stage, it is most of to be melted
When metal concentrates on bottom of furnace body, heat energy that metal molten is absorbed is far smaller than consumed electric energy, and the phase after being melted down, whole
Individual induction coil has just taken on a new look with the problems of the growth, early stage for being melted molten iron.This allows for heat absorption power
First small rear big trend, rather than more constant state is presented, also certainly will just extend the thawing time, reduce the electricity of intermediate frequency furnace
Efficiency.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of energy-conservation and stable Medium frequency induction steel shell furnace, can
While DYNAMIC DISTRIBUTION electric current, magnetic field refraction is led back to inside induction coil, accident is avoided by detecting electric current.
In order to solve the above technical problems, the technical solution of the utility model is：Invent a kind of energy-conservation and stable intermediate frequency sense
Steel shell furnace, including steelframe are answered, crucible is installed in steelframe, the periphery of crucible is enclosed with furnace lining, electromagnetic induction line is wound with furnace lining
Circle, the periphery of electromagnetic induction coil are arranged yoke, and bell is set on the steelframe above crucible；It is characterized in that：The top of yoke
Set faraday's ring, faraday's ring be located at yoke top away from bell lower end distance 1/3rd at, faraday's ring is close to yoke
Set；
The electromagnetic induction coil is divided into the first coil arranged successively from top to bottom and the second coil, first coil and the
The coiling of two coil is in opposite direction, and the upper end of the lower end of first coil and the second coil is connected in parallel on one end of intermediate frequency power supply, and first
The upper end of coil and the lower end of the second coil are connected in parallel on the other end of intermediate frequency power supply；
First binding post is set outside the crucible, and the first binding post connects the inwall of crucible；Lateral electrode, side are set outside furnace lining
Electrode connects the second binding post, and dc source is connected between the second binding post and the first binding post and forms measure loop, is detected back
Measurement resistance, measurement resistance connection alarm control circuit are set in road, alarm control circuit detects the voltage signal of measurement resistance,
When voltage signal is higher than given threshold value, alarm control circuit sends alarm signal.
Preferably, faraday's ring is coaxially disposed with yoke.
Preferably, the internal diameter of faraday's ring is more than the external diameter of yoke.
Preferably, milliampere level ammeter is in series with the measure loop.
Preferably, voltage comparator is set in the alarm control circuit, and the input connection of voltage comparator gives
Circuit, another input connection measurement resistance, the output end connection relay of voltage comparator, the contact of relay provides switch
Measure alarm signal.
Preferably, the lateral electrode is stainless (steel) wire.
Preferably, earth stud is additionally provided with, first binding post or the second binding post are connected by wire and be grounded
Bolt.
Compared with prior art, the beneficial effects of the utility model are：
1st, because the top of yoke is provided with faraday's ring, and faraday's ring is also referred to as " short-circuited turn " or " short circuit
Ring ", it with yoke in magnetic field interaction, can change and revolt the direction of the magnetic line of force in yoke, by magnetic field bounce back sense
The inside of coil is answered, acts on and is melt compound, accelerates the burn-off rate of material；Reduce effect of the magnetic line of force to bell simultaneously,
It is avoided by heat ageing, beneficial to its service life of extension；And the current loop in increased detection crucible and outside furnace lining can lead to
The size of overcurrent signal judges whether furnace lining and crucible have leakage phenomenon, avoid the generation of accident.
2nd, because electromagnetic induction coil is divided into the first coil arranged successively from top to bottom and the second coil, first coil with
Two abutting end head phases of the second coil simultaneously connect, positioned at both ends termination phase and connect, electric current has gating characteristics, when being melted material
During positioned at the bottom of body of heater, top does not have inserts, and electric current leads to from the second coil midstream positioned at bottom substantially, in first coil
Electric current it is smaller, reduce waste of energy；And full of when being melt material in body of heater, electric current then increases logical in first coil
It is excessive, electric current being freely distributed in first coil and the second coil is realized, so as to increase heat absorption rate.
3rd, because faraday's ring and yoke are coaxially disposed, and the internal diameter of faraday's ring is more than the external diameter of yoke, can increase
The magnetic flux of faraday's ring bounce back, further speed up the burn-off rate of material.
4th, due to being in series with milliampere level ammeter in measure loop, detection can intuitively be read by milliampere level ammeter
Current value in loop, to judge whether the insulating properties between furnace lining outer wall and crucible internal walls are intact.
5th, the size of set-point and detected value is judged by voltage comparator, so as to control whether output alarm signal, skill
Art is ripe, stable performance, is easy to implement.
6th, using stainless (steel) wire as lateral electrode, the consumptive material of saving lateral electrode while area of detection is expanded.
7th, to be connected because there is provided earth stud, the first binding post or the second binding post by wire with earth stud
Connect, improve the security of measure loop.
Brief description of the drawings
Fig. 1 is block schematic illustration of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model；
Fig. 3 is the attachment structure schematic diagram of electromagnetic induction coil.
Marked in figure：1st, bell；2nd, faraday's ring；3rd, steelframe；4th, yoke；5th, furnace lining；6th, crucible；7th, lateral electrode；8th, in
Heart electrode；9th, the first binding post；10th, the second binding post；11st, earth stud；12nd, electromagnetic induction coil；13rd, measure loop；14、
Alarm control circuit；15th, given circuit；16th, milliampere level ammeter；17th, first coil；18th, the second coil；19th, intermediate frequency power supply.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
In the utility model, the side that will be close to central electrode 8 is defined as inner side, correspondingly will be far from central electrode 8
Opposite side is defined as outside；When the utility model is in into use state, lower end is defined as close to the one end on ground, and remotely
The one end in face is defined as upper end.
As depicted in figs. 1 and 2, the utility model is provided with crucible 6 in steelframe 3, is set on the steelframe 3 of the top of crucible 6
Bell 1.The periphery of crucible 6 is enclosed with furnace lining 5, and electromagnetic induction coil 12, the periphery set of electromagnetic induction coil 12 are wound with furnace lining 5
If yoke 4, yoke 4, steelframe 3 and bell 1 collectively form box hat of the present utility model.The top of yoke 4 sets faraday's ring 2,
Faraday's ring 2 is coaxially disposed with yoke 4, and its internal diameter is more than the external diameter of yoke 4.Faraday's ring 2 is located at the top of yoke 4 away from bell
At 1/3rd of 1 lower end distance, faraday's ring 2 is set close to yoke 4.This faraday's ring 2 be also referred to as " short-circuited turn " or
Person's " short-circuited conducting sleeve ", it with yoke 4 in magnetic field interaction, can change and revolt the direction of the magnetic line of force in yoke 4, by magnetic field
The inside of bounce back induction coil, material to be melted in crucible 6 is acted on, accelerate the burn-off rate of material；Reduce simultaneously
Effect of the magnetic line of force to bell 1, it is avoided by heat ageing, beneficial to its service life of extension.
As shown in figure 3, above-mentioned electromagnetic induction coil 12 uses split-type structural, it is specifically divided into what is arranged successively from top to bottom
The coil 18 of first coil 17 and second, first coil 17 and the coiling of the second coil 18 are in opposite direction, if first coil 17 is
Clockwise direction coiling, then the second coil 18 is counter clockwise direction coiling；Otherwise the two also may be used.The lower end of first coil 17 and
The upper end of two coil 18 is connected in parallel on one end of intermediate frequency power supply 19, and the lower end of the upper end of first coil 17 and the second coil 18 is connected in parallel on
The other end of intermediate frequency power supply 19.Electric current has gating characteristics, and when the material being melted is located at the bottom of crucible 6, top does not have
Inserts, electric current circulate from positioned at the second coil 18 of bottom substantially, and the electric current in first coil 17 is smaller, reduces electric energy
Waste；And when in crucible 6 full of the material being melted, electric current then increases the throughput in first coil 17, realizes electricity
Being freely distributed in the coil 18 of first coil 17 and second is flowed, so as to increase heat absorption rate.
The utility model also sets the first binding post 9 outside crucible 6, and the first binding post 9 connects the inwall of crucible 6, crucible 6
Interior metalliferous material connects the first binding post 9 as central electrode 8, such central electrode 8；Stainless (steel) wire is set outside furnace lining 5, no
The steel mesh that becomes rusty connects the second binding post 10 as the lateral electrode 7 around furnace lining 5, lateral electrode 7.As shown in figure 3, the He of the second binding post 10
Dc source is connected between first binding post 9 and forms measure loop 13, measurement resistance R, measurement resistance R are set in measure loop 13
Connect alarm control circuit 14, the detection measurement resistance of alarm control circuit 14 R voltage signal, when voltage signal is higher than given threshold
During value, alarm control circuit 14 sends alarm signal.Specifically voltage comparator A, voltage ratio are provided with alarm control circuit 14
The output end connection of input connection given circuit 15, the connection measurement of another input resistance R, voltage comparator A compared with device A
Relay K, relay K contact provide switching value alarm signal.
In order that above-mentioned detection more intuitively with safety, the utility model also connected in measure loop 13 milliampere level electricity
Flow table 16, the current value in measure loop 13 can be intuitively read by milliampere level ammeter 16, with judge the outer wall of furnace lining 5 and
Whether the insulating properties between the inwall of crucible 6 are intact.And earth stud 11 is provided with, the first binding post 9 is connected by wire and is grounded
Bolt 11, improve the security of measure loop 13.
In use, the metalliferous material in the magnetic force line cutting crucible 6 of electromagnetic induction coil 12, faraday's ring 2 changes yoke 4
The magnetic line of force direction of end, by its bounce back crucible 6, further speed up the fusing of metalliferous material, molten metal material shape
Into central electrode 8, the resistance value between being measured by the electric current in measure loop 13 outside furnace lining 5 and in crucible 6, if resistance
Value is very big, and insulating properties are good between illustrating the two, in the absence of Seepage；If resistance value drastically declines, illustrate the outer wall of furnace lining 5
There is the infiltration of molten metal material between the inwall of crucible 6, because infiltration reduces resistance, in addition two binding posts are short-circuit；This
When measure in resistance R because electric current increases, increase its pressure drop, treat that its voltage drop value reaches the given threshold value of alarm control circuit 14
When, alarm control circuit 14 sends alarm signal, and then the control signal as heating furnace operation, avoids dangerous situation.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation, any person skilled in the art is combined, changes or retrofits possibly also with the technology contents of the disclosure above
It is equivalent embodiment of the present utility model.But it is every without departing from the content of the technical scheme of the utility model, it is new according to this practicality
Any simple modification, equivalent variations and the remodeling that the technical spirit of type is made to above example, still fall within the utility model skill
The protection domain of art scheme.
Claims (7)
- Saved and stable Medium frequency induction steel shell furnace 1. a kind of, including steelframe, crucible, the periphery parcel of crucible are installed in steelframe There is furnace lining, be wound with electromagnetic induction coil on furnace lining, the periphery of electromagnetic induction coil is arranged yoke, is set on the steelframe above crucible Bell；It is characterized in that：The top of yoke sets faraday's ring, and faraday's ring is located at three of yoke top away from bell lower end distance At/mono-, faraday's ring is set close to yoke；The electromagnetic induction coil is divided into the first coil arranged successively from top to bottom and the second coil, first coil and the second line The coiling of circle is in opposite direction, and the upper end of the lower end of first coil and the second coil is connected in parallel on one end of intermediate frequency power supply, first coil Upper end and the lower end of the second coil be connected in parallel on the other end of intermediate frequency power supply；First binding post is set outside the crucible, and the first binding post connects the inwall of crucible；Lateral electrode, lateral electrode are set outside furnace lining The second binding post is connected, dc source is connected between the second binding post and the first binding post and forms measure loop, in measure loop Measurement resistance is set, measurement resistance connection alarm control circuit, the voltage signal of alarm control circuit detection measurement resistance, works as electricity When pressure signal is higher than given threshold value, alarm control circuit sends alarm signal.
- 2. according to the energy-conservation described in claim 1 and stable Medium frequency induction steel shell furnace, it is characterised in that：Faraday's ring with Yoke is coaxially disposed.
- 3. according to the energy-conservation described in claim 1 and stable Medium frequency induction steel shell furnace, it is characterised in that：Faraday's ring Internal diameter is more than the external diameter of yoke.
- 4. according to the energy-conservation described in claim 1 and stable Medium frequency induction steel shell furnace, it is characterised in that：In the measure loop It is in series with milliampere level ammeter.
- 5. according to any described energy-conservation of Claims 1-4 and stable Medium frequency induction steel shell furnace, it is characterised in that：The report Voltage comparator is set in alert control circuit, and the input connection given circuit of voltage comparator, the connection of another input are surveyed Resistance is measured, the output end connection relay of voltage comparator, the contact of relay provides switching value alarm signal.
- 6. according to the energy-conservation described in claim 5 and stable Medium frequency induction steel shell furnace, it is characterised in that：The lateral electrode is not Become rusty steel mesh.
- 7. according to the energy-conservation described in claim 6 and stable Medium frequency induction steel shell furnace, it is characterised in that：It is additionally provided with ground connection spiral shell Bolt, first binding post or the second binding post connect earth stud by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439671.7U CN206772006U (en) | 2017-04-25 | 2017-04-25 | A kind of energy-conservation and stable Medium frequency induction steel shell furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720439671.7U CN206772006U (en) | 2017-04-25 | 2017-04-25 | A kind of energy-conservation and stable Medium frequency induction steel shell furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206772006U true CN206772006U (en) | 2017-12-19 |
Family
ID=60635699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720439671.7U Expired - Fee Related CN206772006U (en) | 2017-04-25 | 2017-04-25 | A kind of energy-conservation and stable Medium frequency induction steel shell furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206772006U (en) |
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2017
- 2017-04-25 CN CN201720439671.7U patent/CN206772006U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 |