CN206113637U - Composite heating formula heat treatment furnace - Google Patents
Composite heating formula heat treatment furnace Download PDFInfo
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- CN206113637U CN206113637U CN201620793089.6U CN201620793089U CN206113637U CN 206113637 U CN206113637 U CN 206113637U CN 201620793089 U CN201620793089 U CN 201620793089U CN 206113637 U CN206113637 U CN 206113637U
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- electrode
- induction coil
- heat
- treatment furnace
- composite heating
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Abstract
The utility model discloses a composite heating formula heat treatment furnace. Composite heating formula heat treatment furnace is including setting up the induction coil and setting electrode pair as the secondary heating component in the furnace body who is used for the induction heating material outside the furnace body. The utility model discloses an induction heating and the heating of electrode pair direct current combine together, and it lands to show has improved the heating effect, have improved the even degree of material heating simultaneously.
Description
Technical field
The utility model is related to a kind of compound-heating heat-treatment furnace, belongs to heat-treatment furnace field.
Background technology
Existing graphitizing furnace mostly is graphite body heating, then heat is passed to by way of radiation or heat transfer and is added
Hot material, high energy consumption, efficiency is low；Most intermediate frequency furnaces only transfer heat to calandria by graphite crucible sensing heating, lean on
There is larger temperature difference in the powder and the powder positioned at centre of nearly crucible.
Chinese patent CN201010108189.8 discloses a kind of vertical high temperature continuous graphitizing furnace, with upper/lower electrode to even
Dc source is connect, with material as resistance heating, it has the disadvantage high energy consumption, and the efficiency of heating surface is low.There is Medium frequency induction graphitization again afterwards
Stove, a kind of vertical continuous sensing high temperature graphitization stove, Chinese patent as disclosed in Chinese patent CN201410666556.4
Disclosed in a kind of Super-high temperature graphitization treatment equipment, Chinese patent CN201210487294.6 disclosed in CN201410016297.0
A kind of continuous high-temperature graphite purification equipment, graphite purification and graphitizable high temperature disclosed in Chinese patent CN200910042891.6
Vertical continuous induction heating furnace, continuous vertical type medium-frequency high temperature high purity graphite production disclosed in Chinese patent CN200920009018.2
Equipment etc., is characterized in that the efficiency of heating surface is high, and energy consumption is low, but the thermal conductivity factor of powder is relatively low, so as to cause the temperature of material in stove
Degree uniformity is poor, and the spread in performance of product is uneven, and these graphitizing furnaces have furnace shell structure and heat-insulation layer, except needing
Outside furnace shell cooling water cooling, also limit the volume size of heating furnace, heat-insulation layer change safeguard it is bothersome it is time-consuming take a lot of work, in practice simultaneously
It is unrealized to produce in enormous quantities.
The mode of heating of existing induction heater is that graphite crucible is heated by Medium frequency induction, then heat by
Crucible passes to material by way of heat transfer, but the thermal conductivity factor of material is relatively low, and center and edge can be caused close
There is the temperature difference in the material at crucible, ultimately result in properties of product uneven；And DC heating stove needs high current, high energy consumption,
The efficiency of heating surface is low.
Utility model content
The utility model aims to provide a kind of compound-heating heat-treatment furnace, and the heat-treatment furnace combines Frequency Induction Heating skill
Art and DC heating technology, improve the temperature homogeneity of heated material while saving energy consumption, and heating effect is more preferable.
To achieve these goals, the technical scheme that the utility model is adopted is：
A kind of heat-treatment furnace of composite heating, it is structurally characterized in that, including body of heater outside is arranged on sensing heating thing is used for
The induction coil of material and the electrode pair as reheating element is arranged in body of heater.
Thus, the utility model is combined using sensing heating and electrode pair DC heating, is considerably improved plus thermal effect
Really, while improve the uniformity coefficient of material heating, each other temperature is mutually compensated for, and maximum temperature can reach 3100 DEG C.This reality
Idioelectric characteristic can be passed through with new utilization induction coil, powder material is directly heated, drastically increase graphitization
The efficiency of heating surface of stove, reduces production cost, facilitates high-volume large-scale production.
According to embodiment of the present utility model, further optimization can also be made to the utility model, below for optimization after
The technical scheme of formation：
The induction coil is encapsulation induction coil, is arranged on the outermost induction coil of graphitizing furnace as stove
Shell.Additionally, the utility model doubles as outer layer furnace shell with induction coil, traditional metal furnace shell is no longer set, body of heater size is made not
Limited by metal furnace shell again, you can to deduct the volume of metal furnace shell, furnace shell diameter is usually the 1.2-1.8 of heating coil
Times, floor space is reduced, the manufacturing cost and cooling cost of metal furnace shell can be saved again, it is poor using powder material thermal conductivity
The characteristics of so as to as insulation material the induction coil is used for encapsulation induction coil.
The top of the induction coil is the supporter poured by pouring material, and bottom is the hollow line of induction for pouring
Circle, a diameter of 0.5m-10m of the induction coil.More preferably 1m-3m.
The induction coil top is provided with rotation dish, and the rotation dish is provided with rotary shaft, electrode and charging aperture；The sensing
Coil bottom is provided with plate electrode, and the discharging opening being connected with cooling zone is provided with the middle of the plate electrode；Between the electrode and plate electrode
Described electrode pair is formed, thus, while electrode pair forms two grades of heating element heaters, the sensed coil heats of electrode are formed and added
Thermal element（High using the sensing heating efficiency of heating surface, energy consumption is low, without low-voltage, high-current, it is not necessary to lower pressure rectifier, reduces transformer
The consumption of copper loss and iron loss, low production cost, its electrical heating efficiency improves 50%）, can further improve heating region face
Product, while further improving in-furnace temperature, improves the efficiency of heating surface.
The edge position of the rotation dish is supported by induction coil；The electrode runs through and is fixed in rotation dish, described
Plate electrode forms the crucible for containing heated material with induction coil；The electrode is provided with regulation electrode and stretches into induction coil
The adjustment structure of inner length.More preferably described adjustment structure is rotational structure or helicitic texture.
The number of electrodes is no less than 2, is uniformly distributed along rotation dish center line；The electrode distance induction coil inwall
Distance is 50-500mm.
In order to facilitate foreign gas quickly to overflow in heating, the middle part of the electrode is through-hole structure, the through-hole structure
As exhaust passage and thermometric passage, the electrode bottom is provided with the oblique perforate of equally distributed ecto-entad.
In order to realize during electrode rotary playing stirring action to material simultaneously, material heating process is made evenly, described turn
Moving axis is connected to form rotating element drive rotation disc spins with driving means.It is preferred that the rotating speed of the rotary shaft is not higher than 6r/
Min, preferably 0 r/min -3r/min.Thus, electrode is driven by driving means and is rotated, and material is stirred in heating
Mix.
The heat-treatment furnace is that the material that induction coil inner wall area is installed in without furnace shell graphitizing furnace doubles as inside holding
Layer.
The power frequency of the induction coil is 350-3000HZ, heating power is 500-2000kW.
Preferably, the electrode includes an at least electrode group, and each electrode group has each of three electrodes, three of each electrode group
Electrode is connected respectively with the ABC three-phases of three-phase electricity and heated by electrodes area is formed between each of three electrodes；The heated by electrodes position
In the top of the induction coil thermal treatment zone.
Compared with prior art, the beneficial effects of the utility model are：
1. higher temperature is realized；Two kinds of mode of heatings work simultaneously, and each other temperature is mutually compensated for, it is possible to obtain preferably
Temperature, maximum temperature can reach 3100 DEG C.By the composite heating of Qian Hou section, can realize present segment there is temperature not enough or
When person heats export license and power and decreases, back segment can be used as the useful compensation for maintaining burner hearth high temperature section all the time.
2. different Temperature Distributions are realized；Stove is realized by the power of the size of current and sensing heating that adjust electrode
Different Temperature Distribution in thorax.
3. temperature homogeneity is more preferable；Heated by electrodes can compensate the center and peripheral temperature difference caused by heat transfer, while compensation
The temperature difference caused by roof of the furnace and bottom heat insulation effect difference, improves temperature homogeneity.
4. without metal furnace shell, do not limited by furnace shell size, body of heater size is not limited, thermal treatment zone diameter can reach 2-
10m, is 2-6 times of traditional induction furnace, and single heat processes yield and raises, and is more suitable for volume production；Additionally, without furnace shell, no-cooling-water, keeping away
The danger that leak is caused is exempted from, while saving the energy consumption of cooling water system.
5. the carbon felt heat-insulation layer of abandoning tradition, using negative material granularity it is little, bulk specific weight is little, the spy that heat transfer efficiency is low
Point, directly using powder as insulation material, that is, avoids outside transfer of heat from being lost, and improves the overall thermal efficiency, and thermal insulating material is reduced again
The maintenance cost that material is caused.
6. also it is inductively heated while multi-electrode directly heats material, as thermal source powder material is heated simultaneously, will
High-temperature region expands original 4-5 times to, makes powder material more uniform.
Description of the drawings
Fig. 1 is the structure principle chart of the utility model one embodiment.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the utility model in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
Occur " on ", D score, "left", "right" printed words, only represent it is consistent with the upper and lower, left and right direction of accompanying drawing itself, not to structure
Play restriction effect.
A kind of compound-heating heat-treatment furnace, as shown in figure 1, being used for the encapsulation sense of sensing heating material including body of heater outside
Coil 4 is answered, and as the electrode pair of reheating element.The graphitizing furnace is, without furnace shell graphitizing furnace, to be arranged on graphitization
The outermost induction coil 4 of stove doubles as furnace shell, and the material for being installed in the inner wall area of induction coil 4 doubles as inner thermal insulating layer.Sense
The top of coil 4 is answered to be the supporter poured by pouring material, bottom is the hollow induction coil for pouring, and both collectively constitute sense
Answer coil 4.
The top of induction coil 4 is provided with rotation dish 2, and rotation dish 2 is provided with rotary shaft 1, electrode 3 and charging aperture 5, induction coil
4 bottoms are additionally provided with plate electrode 7, and discharging opening 6 is provided with the middle of plate electrode 7, and discharging opening 6 is connected with cooling zone 8；The electrode 3 and plate
Described electrode pair is formed between electrode 7, electrode pair constitutes composite heating with the sensing heating that induction coil 4 is formed；Described turn
The edge position of Moving plate 2 is supported by induction coil 4；The electrode 7 runs through and is fixed in rotation dish 2, and electrode 7 can be by rotation
Or screw thread etc. adjusts the length stretched into inside induction coil 4；The plate electrode 7 is formed with induction coil 4 and contains heated material
Crucible.
The quantity of the electrode 3 is no less than 2, is uniformly distributed along the center line of rotation dish 2；The electrode 3 is apart from induction coil 4
Inwall distance is 50-500mm；The middle part of the electrode 3 is through-hole structure, and by structure exhaust passage and thermometric passage are used as, excellent
Select on electrode 3 while be provided with the oblique perforate of equally distributed ecto-entad, make impurity be more easy to discharge.
The rotary shaft 1 be connected with driving means to be formed rotating element drive rotation dish 2 rotate, so as to realize electrode 3
Agitating function；It is preferred that the rotary shaft 1 is preferably 0 r/min -3r/min.
The diameter of the induction coil 4 is preferably 1m -3m.
The power frequency of the induction coil is 350-3000HZ, heating power is 500-2000kW.
As a kind of preferred version, when the quantity of electrode 3 is 3 multiple（Minimum 1 group）, can be by 3 connected electrodes
Form an electrode group, each of three electrodes of each electrode group connects respectively the ABC three-phases of three-phase electricity, i.e., one electrode connects A phases, one
Root electrode connects B phases, and an electrode connects C phases, so as to constitute the thermal treatment zone between each of three electrodes of a group of motors.The electrode adds
Hot-zone is located at sensing heating area top, constitutes composite heating.
The content that above-described embodiment is illustrated should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than scope of the present utility model is limited, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent form of values of type each falls within the application claims limited range.
Claims (9)
1. a kind of heat-treatment furnace of composite heating, it is characterised in that including being arranged on body of heater outside for sensing heating material
Induction coil（4）Be arranged in body of heater the electrode pair as reheating element；The induction coil（4）Top be by pouring
Build the supporter that pours of material, bottom is the hollow induction coil for pouring, the induction coil（4）A diameter of 0.5m-10m.
2. the heat-treatment furnace of composite heating according to claim 1, it is characterised in that the induction coil（4）For encapsulation
Induction coil, is arranged on the outermost induction coil of graphitizing furnace（4）As furnace shell.
3. the heat-treatment furnace of composite heating according to claim 1, it is characterised in that the induction coil（4）Top sets
There is rotation dish（2）, the rotation dish（2）It is provided with rotary shaft（1）, electrode（3）And charging aperture（5）；The induction coil（4）Bottom
It is provided with plate electrode（7）, the plate electrode（7）Centre is provided with and cooling zone（8）Connected discharging opening（6）；The electrode（3）With plate electricity
Pole（7）Between form described electrode pair.
4. the heat-treatment furnace of composite heating according to claim 3, it is characterised in that the rotation dish（2）Edge portion
Position is by induction coil（4）Support；The electrode（3）Through and be fixed on rotation dish（2）On, the plate electrode（7）With the line of induction
Circle（4）Form the crucible for containing heated material；The electrode（3）It is provided with regulation electrode（3）Stretch into induction coil（4）It is interior
The adjustment structure of minister's degree.
5. the heat-treatment furnace of composite heating according to claim 3, it is characterised in that the electrode（3）Quantity is no less than 2
Root, along rotation dish（2）Center line is uniformly distributed；The electrode（3）Apart from induction coil（4）Inwall distance is 50-500mm.
6. the heat-treatment furnace of composite heating according to claim 3, it is characterised in that the electrode（3）Middle part be logical
Pore structure, the through-hole structure is as exhaust passage and thermometric passage, the electrode（3）Bottom is provided with equally distributed ecto-entad
Oblique perforate.
7. the heat-treatment furnace of composite heating according to claim 3, it is characterised in that the rotary shaft（1）Fill with driving
Put and be connected to form rotating element drive rotation dish（2）Rotation.
8. the heat-treatment furnace of composite heating according to claim 3, it is characterised in that the heat-treatment furnace is without furnace shell stone
Mo Hualu, is installed in induction coil（4）The material of inner wall area doubles as inner thermal insulating layer.
9. the heat-treatment furnace of the composite heating according to one of claim 3-8, it is characterised in that the electrode（3）Including
An at least electrode group, each electrode group has each of three electrodes, each of three electrodes of each electrode group respectively with the ABC three-phase phases of three-phase electricity
Heated by electrodes area is even formed between each of three electrodes；The heated by electrodes area is located at the top of the induction coil thermal treatment zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793089.6U CN206113637U (en) | 2016-07-26 | 2016-07-26 | Composite heating formula heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793089.6U CN206113637U (en) | 2016-07-26 | 2016-07-26 | Composite heating formula heat treatment furnace |
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| Publication Number | Publication Date |
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| CN206113637U true CN206113637U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620793089.6U Active CN206113637U (en) | 2016-07-26 | 2016-07-26 | Composite heating formula heat treatment furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900109A (en) * | 2017-12-07 | 2019-06-18 | 天工爱和特钢有限公司 | A kind of electric arc furnaces of processing mold steel |
-
2016
- 2016-07-26 CN CN201620793089.6U patent/CN206113637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900109A (en) * | 2017-12-07 | 2019-06-18 | 天工爱和特钢有限公司 | A kind of electric arc furnaces of processing mold steel |
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