CN201151735Y - Electromagnetic agitator at cramer winding furnace bottom - Google Patents
Electromagnetic agitator at cramer winding furnace bottom Download PDFInfo
- Publication number
- CN201151735Y CN201151735Y CNU2007200650306U CN200720065030U CN201151735Y CN 201151735 Y CN201151735 Y CN 201151735Y CN U2007200650306 U CNU2007200650306 U CN U2007200650306U CN 200720065030 U CN200720065030 U CN 200720065030U CN 201151735 Y CN201151735 Y CN 201151735Y
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- iron core
- magnetic stirrer
- winding
- magnetic
- furnace bottom
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Abstract
The utility model relates to a metallurgical melting electromagnetic stirrer, in particular to a furnace-bottom electromagnetic stirrer with Cramer windings. The electromagnetic stirrer comprises a horizontally arranged electromagnetic stirrer iron core, the core teeth of which are evenly and upwardly distributed, a field yoke is positioned on the lower side of the iron core, coils are embedded on the field yoke, and the magnetic circuit of the iron core is a open circuit in order to form a travelling magnetic field to stir molten metal; the electromagnetic stirrer adopts Cramer winding coils, the windings of which are vertically arranged and embedded on the field yoke of the iron core in order to form the travelling magnetic field which drives the molten metal to directionally move; the iron core and the coils are arranged on a dragged trolley, so that the electromagnetic stirrer can be arranged on the bottom of a smelting furnace in a horizontally moving way; a hydraulic lifting gear is arranged between the dragged trolley and the iron core as well as the coils to lift the working plane of the travelling magnetic field produced by electromagnetic stirring to the bottom of the smelting furnace. The electromagnetic stirrer can reduce energy consumption, increase the yield of metals, uniformize alloy ingredients, reduce aliquation and decrease the upper-and-lower temperature difference of the molten metal.
Description
Technical field
The utility model relates to metallurgical melting magnetic stirrer, refers in particular to a kind of Gramer's winding furnace bottom magnetic stirrer.
Background technology
The fusing of aluminum current is at present still based on reverberatory furnace, and this is because its installation cost is cheap, simple to operate, fuel cost is more cheap, reasons such as production run less expensive.But on the other hand, reverberatory furnace is compared with smelting furnace, because no stirring action is difficult to make uniform ingredientsization; And there is shortcomings such as producing the temperature difference between the surface of liquation and bottom, combustion chamber and the unlimited moist closet.The way that solves this shortcoming in the past is to adopt mechanical type or decompression type whipping appts, owing to must have the part that contacts with liquation, thereby have difficult points such as running stores increase, the pollution of aluminium liquid, operation and maintenance trouble.
Summary of the invention
The purpose of this utility model is improved, is innovated at shortcoming that exists in the background technology and problem, and a kind of Gramer's winding furnace bottom magnetic stirrer is provided.
The technical solution of the utility model is: construct a kind of magnetic stirrer structure that is arranged on the smelting furnace bottom, be characterized in:
Horizontally disposed magnetic stirrer iron core, uniform on the core teeth directional of iron core, yoke is positioned at mandrel lower, and coil is embedded in the yoke position, and iron circuit is set to open circuit, is used to form travelling-magnetic-field and stirs molten metal;
Adopt Gramer's winding coil, coil winding be vertical the setting, and each winding all is embedded on the yoke of iron core, and being used to form travelling-magnetic-field, to drive molten metal directed mobile;
Described iron core and coil are located at one and drag on the dolly, are used for being arranged on smelting furnace bottom with what magnetic stirrer moved horizontally;
Described dragging between dolly and iron core and the coil is provided with hydraulic lift, is used for induction stirring is produced the vertical smelting furnace bottom that rises to of working face of travelling-magnetic-field.
The utility model is provided with magnetic stirrer in smelting furnace bottom, the aluminium liquid in the smelting furnace is stirred, thereby can cut down the consumption of energy, improve recovery rate of iron, uniform alloy composition, reduce segregation, dwindle liquation upper and lower temperature difference etc.Electromagnetic mixing apparatus is a kind of simple device based on the linear electric motors principle, and the whole liquations in the stove can be stirred in the very short time equably.This whipping appts has almost been eliminated the shortcoming of reverberatory furnace, and also can solve whole difficult points of whipping appts in the past easily.Because electromagnetic induction, in liquation, produce thrust, but with liquation without any contacting, be a kind of maintenance free, real ideal stirring means really.
The utility model has following beneficial effect:
1, the homogenizing of composition and eliminate segregation is improved the quality of products.Compare with alternate manner, owing to can regulate whipping force,, cause that all liquations are stirred fast and equably in the stove so stirring action can be very strong by each parameter of regulating agitator, therefore, liquation uniform ingredientsization and can not produce segregation fully.To high liquations of alloy content such as magnesium, titanium, silicon, the effect of magnetic stirrer is more obvious.
2, shorten fusing time, cut down the consumption of energy, save production cost.Because liquation is stirred consumingly, has been equivalent to improve the thermal conductivity of cold burden,, shortened fusing time so the fusing of cold burden is quickened.Meanwhile, owing between liquation and cold burden, carried out forcing contact, in several minutes, eliminated the temperature head (amplitude is 100～150 ℃) of molten surface and bottom, the temperature of whole liquation reduces, thereby improved photothermal absorption, reduced thermosteresis, reduced energy consumption.
3, anti-oxidation improves utilization ratio of raw materials, increases the benefit space.Improving on the utilization ratio of raw materials, the oxidation that prevents liquation is important.Because function composite by electromagnetic stirring, reduced molten surface temperature, shortened fusing time, thereby contained the oxidized of liquation effectively, improved utilization ratio of raw materials significantly.
4, automatic control even remote control and easy to maintenance simple have been realized.In whipping appts in the past, need manpower and special instrument to stir.But magnetic stirrer can carry out full-automatic or Long-distance Control, and does not directly contact with liquation, needs hardly to safeguard.
5, realized the accurate control of melt temperature.Solution temperature is uneven, even carry out temperature detection, can not measure the correct temperature of liquation.Because induction stirring has made melt temperature homogenizing on the whole, make the accurate control of carrying out melt temperature become possibility.
6, dwindle the erection space of reverberatory furnace.Because the heat absorption of molten surface improves, when the design stove, can strengthen the degree of depth and reduce surface-area, thereby seek to dwindle erection space.
Description of drawings
Fig. 1 is the utility model front view
Fig. 2 is Fig. 1 vertical view
Fig. 3 is a magnetic stirrer synoptic diagram at the bottom of the smelting furnace
Fig. 4 is middle liquation motion synoptic diagram for magnetic stirrer is installed in
Fig. 5 is installed in sidepiece liquation motion synoptic diagram for magnetic stirrer
Fig. 6 is one of three-phase Gramer coil winding sketch
Fig. 7 is two of a three-phase Gramer coil winding sketch
Embodiment
By Fig. 1 to 6 as can be known, the utility model comprises:
Horizontally disposed magnetic stirrer iron core 2, uniform on the core teeth directional of iron core 2, yoke is positioned at iron core 2 bottoms, and coil 3 is embedded in the yoke position, and iron core 2 magnetic circuits are set to open circuit, are used to form travelling-magnetic-field and stir molten metal;
Adopt Gramer's winding coil 3, coil 3 windings be vertical the setting, and each winding all is embedded on the yoke of iron core 2, and being used to form travelling-magnetic-field, to drive molten metal directed mobile;
Described iron core 2 and coil 3 are located at one and drag on the dolly 4, are used for being arranged on smelting furnace bottom with what magnetic stirrer moved horizontally;
Described dragging between dolly 4 and iron core 2 and the coil 3 is provided with hydraulic lift 5, is used for induction stirring is produced the vertical smelting furnace bottom that rises to of working face of travelling-magnetic-field.
Iron core 2 described in the utility model and coil 3 are arranged in the shell 1, and the top of shell 1 is the working face of induction stirring, and the bottom of shell 1 comprises that the bottom of iron core 2 connects hydraulic lift 5.Described dolly 4 one sides that drag connect the magnetic stirrer drag chain, are used to be provided with cable.The described bottom that drags dolly 4 is provided with moving track 7, and the roller that drags dolly 4 is located on the moving track 7.The lower end of described moving track 7 is provided with cable trench 8, and magnetic stirrer drag chain 6 is arranged in the cable trench.
Principle of work of the present utility model:
The travelling-magnetic-field magnetic stirrer is made of agitator iron core, coil and non-magnetic stainless steel housing.The travelling-magnetic-field magnetic stirrer is the same with linear electric motors, all is the stator differentiation by normal asynchronous.It can be regarded as the stator of an asynchronous motor is radially cut open, with the circumference generate straight line of motor, promptly forms the travelling-magnetic-field magnetic stirrer then.The original like this rotatingfield along the circumference rotation becomes the travelling-magnetic-field of advancing to a direction.Molten metal then substitutes the secondary of electric motor, thereby constitutes travelling-magnetic-field magnetic stirrer (being called for short STS).
The difference of travelling-magnetic-field magnetic stirrer and asynchronous motor is as follows:
1, the iron core of travelling-magnetic-field magnetic stirrer disconnects, and magnetic circuit is opened a way; The iron core of asynchronous motor is closed, and magnetic circuit also is closed.
1) because each phase winding of travelling-magnetic-field magnetic stirrer is asymmetric in the position of iron core, even under the symmetric situation of impressed voltage, tri-phase current is also uneven.For this reason, generally adopt the winding configuration of two-phase, guarantee that the two-phase impedance equates that biphase current is in a basic balance at orthogonal space.Three-phase winding electric magnetic stirrer generally will add auxiliary winding makes current balance type.
2) because the magnetic circuit open circuit except that producing direct wave magnetic field, also is attended by backward-travelling wave magnetic field and impulsive magnetic field.
2, because molten metal is a continuous conductor, induced current wherein portion within it is closed voluntarily, and the induced current of electric motor can only flow and closure in the short-circuited conducting sleeve at two ends along sliver in the rotor.
As shown in Figure 3, magnetic stirrer 11 is set, when feeding the inductor block two-phase alternating current, just produces travelling-magnetic-field at furnace bottom 10
,, thereby produce induced current because the effect in this magnetic field produces induced potential in liquation 9
(following the right-hand rule).This induced current and local magnetic field interaction produce electromagnetic push in liquation
(following left-hand rule).
Shown in Fig. 4,5,, promote liquation and rotate because this thrust follows the effect of ripple field direction.And, because this thrust has horizontal component and vertical component, therefore make liquation upwards make oblique flow, cause the effect of the equalizing temperature of liquation levels.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; do not breaking away under the preceding topic of the utility model design philosophy; engineering technical personnel make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (5)
1, a kind of Gramer's winding furnace bottom magnetic stirrer is characterized in that comprising:
Horizontally disposed magnetic stirrer iron core (2), uniform on the core teeth directional of iron core (2), yoke is positioned at iron core (2) bottom, and coil (3) is embedded in the yoke position, and iron core (2) magnetic circuit is set to open circuit, is used to form travelling-magnetic-field and stirs molten metal;
Adopting Gramer's winding coil (3), coil (3) winding be vertical the setting, and each winding all is embedded on the yoke of iron core (2), and being used to form travelling-magnetic-field, to drive molten metal directed mobile;
Described iron core (2) and coil (3) are located at one and drag on the dolly (4), are used for being arranged on smelting furnace bottom with what magnetic stirrer moved horizontally;
Described dragging between dolly (4) and iron core (2) and the coil (3) is provided with hydraulic lift (5), is used for induction stirring is produced the vertical smelting furnace bottom that rises to of working face of travelling-magnetic-field.
2, Gramer's winding furnace bottom magnetic stirrer according to claim 1, it is characterized in that described iron core (2) and coil (3) are arranged in the shell (1), the top of shell (1) is the working face of induction stirring, and the bottom of shell (1) comprises that the bottom of iron core (2) connects hydraulic lift (5).
3, Gramer's winding furnace bottom magnetic stirrer according to claim 1 is characterized in that described dolly (4) one sides that drag connect the magnetic stirrer drag chain, are used to be provided with cable.
4, Gramer's winding furnace bottom magnetic stirrer according to claim 1 is characterized in that the described bottom that drags dolly (4) is provided with moving track (7), and the roller that drags dolly (4) is located on the moving track (7).
5, Gramer's winding furnace bottom magnetic stirrer according to claim 4 is characterized in that the lower end of described moving track (7) is provided with cable trench (8), and magnetic stirrer drag chain (6) is arranged in the cable trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650306U CN201151735Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic agitator at cramer winding furnace bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650306U CN201151735Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic agitator at cramer winding furnace bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201151735Y true CN201151735Y (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200650306U Expired - Lifetime CN201151735Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic agitator at cramer winding furnace bottom |
Country Status (1)
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| CN (1) | CN201151735Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843112A (en) * | 2017-11-21 | 2018-03-27 | 广州立中锦山合金有限公司 | Tunnel type aluminium smelting furnace group with illumination monitoring equipment |
| CN108067604A (en) * | 2017-12-11 | 2018-05-25 | 西北工业大学 | A kind of melt stirring-type Multifunctional reverse gravity casting device and casting method |
-
2007
- 2007-11-09 CN CNU2007200650306U patent/CN201151735Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843112A (en) * | 2017-11-21 | 2018-03-27 | 广州立中锦山合金有限公司 | Tunnel type aluminium smelting furnace group with illumination monitoring equipment |
| CN108067604A (en) * | 2017-12-11 | 2018-05-25 | 西北工业大学 | A kind of melt stirring-type Multifunctional reverse gravity casting device and casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YUEYANG CLPEC ELECTROMECHANICAL ENGINEERING & TECHNOLOGY CO., LTD. Assignor: Hunan Kemeida Electric Co., Ltd. Contract fulfillment period: 2009.11.8 to 2015.11.8 Contract record no.: 2009430000258 Denomination of utility model: Electromagnetic agitator at cramer winding furnace bottom Granted publication date: 20081119 License type: Exclusive license Record date: 20091217 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.8 TO 2015.11.8; CHANGE OF CONTRACT Name of requester: YUEYANG CLPEC ELECTROMECHANICAL ENGINEERING + TECH Effective date: 20091217 |
|
| ASS | Succession or assignment of patent right |
Owner name: HU NAN KEMEIDA ELECTRIC CO., LTD. Free format text: FORMER OWNER: HUNAN KEMEIDA ELECTRIC CO., LTD. Effective date: 20110124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 414000 MAILBOX NO. 90, LUOWANG ECONOMIC DEVELOPMENT ZONE, YUEYANG CITY, HU NAN PROVINCE TO: 414000 KEMEIDA ROAD, YUEYANG CITY, HU NAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110124 Address after: 414000 Hunan province Yueyang Kemeida Road Patentee after: Hunan Kemeida Electric Co., Ltd. Address before: 414000 box 90, Luo Wang Economic Development Zone, Hunan, Yueyang Patentee before: Hunan Kemeida Electric Co., Ltd. |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: YUEYANG CLPEC ELECTROMECHANICAL ENGINEERING & TECHNOLOGY CO., LTD. Assignor: Hunan Kemeida Electric Co., Ltd. Contract record no.: 2009430000258 Date of cancellation: 20110309 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081119 |