CN202524583U - Power frequency furnace with eccentric melting channel - Google Patents
Power frequency furnace with eccentric melting channel Download PDFInfo
- Publication number
- CN202524583U CN202524583U CN201220172123XU CN201220172123U CN202524583U CN 202524583 U CN202524583 U CN 202524583U CN 201220172123X U CN201220172123X U CN 201220172123XU CN 201220172123 U CN201220172123 U CN 201220172123U CN 202524583 U CN202524583 U CN 202524583U
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- Prior art keywords
- melting channel
- channel
- eccentric
- melting
- frequency furnace
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- General Induction Heating (AREA)
Abstract
The utility model relates to a power frequency furnace with an eccentric melting channel. The power frequency furnace comprises an upper part (1) of the eccentric melting channel, a bottom part (4) of the eccentric melting channel, a narrow part (2) of the eccentric melting channel, a wide part (3) of the eccentric melting channel and an inductor coil (5). Both an internal edge (6) and an external edge (7) of the melting channel are eccentric with the inductor coil (5), leakage magnetic fields of an inductor reduce from the internal edge of the melting channel to the external edge of the melting channel, the pressure of the narrow part of the melting channel is enabled to be the highest due to the centrifugal effect of the leakage magnetic fields on liquid copper in the melting channel, a force component, pointing at the bottom of the melting channel, of the narrow part of the melting channel is greater than a force component, pointing at the bottom of the melting channel, of the wide part of the melting channel, and a forceful one-way flowing pattern that liquid copper in a melting pool enters the melting channel from the narrow part of the melting channel and enters the melting pool from the wide part of the melting channel is then formed, so that the heating effect is improved, the working temperature of the melting channel is reduced, and the service life of the melting channel is prolonged.
Description
Technical field
The utility model relates to a kind of main frequency furnace with eccentric channel.
Background technology
Channel is the key position of main frequency furnace channel induction furnace, and existing main frequency furnace channel inner edge is concentric with inductor coil, and channel outer rim and inductor coil are eccentric, demonstrates the liquid of two strands of different graphics.When the copper liquid in the molten bath flows in channel fast; Because of channel in long-term copper flow is moving, be the inlet of copper liquid from narrow of channel, wide of channel is the outlet of copper liquid; The long-term copper liquid of the flow channel of copper liquid washes away the slagging scorification that is prone to cause channel in the channel; No matter be the inwall of channel or the variation that the slagging scorification of outer wall will cause inductor resistance and reactance, cause the reduction of thermal effect, influence useful life.Usually be 8-10 months the useful life of main frequency furnace melting furnace inductor channel, and be 2-3 years the useful life of holding furnace stove inductor channel.
Summary of the invention
The purpose of the utility model provides a kind of main frequency furnace with eccentric channel, solves the problem that existing main frequency furnace useful life is short and thermal effect is low.
For realizing the foregoing invention purpose; The technical scheme that the utility model adopted is: a kind of main frequency furnace with eccentric channel comprises eccentric channel top, eccentric channel bottom, eccentric channel inner edge, eccentric channel outer rim and is installed on the inductor coil at eccentric channel inner edge cambered surface center.The inner edge of eccentric channel and the outer rim of eccentric channel are all eccentric with inductor coil.Wherein cold copper liquid constantly enters channel from narrow suction of eccentric channel in the molten bath, and the copper liquid of heat then constantly spues from wide of eccentric channel, pours in the molten bath, to replenish the thermal losses of melting copper.
Further improve, one section on the eccentric channel inner edge cambered surface is the right angle face of circular arc.
Improvement further; Eccentric channel inner edge is being the right angle face of band circular arc near narrow that end with eccentric channel top of eccentric channel; Adopt wide of the eccentric channel in this design back that the pressure reduction increasing of eccentric channel bottom is increased copper liquid flowability, improve thermal effect.
The beneficial effect of the utility model is:
Can accelerate the flowability of copper liquid in the molten bath, improve thermal effect.Jet flow when taking place in copper liquid, and copper liquid flows fast in the channel, can take away the impurity in some channels, prevents that impurity from adhering to the channel arm and channel is enlarged, and makes that power factor (PF) is stable, prolong equipment life.Be 15-24 months the useful life of improving back main frequency furnace melting furnace inductor channel, and be 3-5 years the useful life of holding furnace stove inductor channel.
Description of drawings
Fig. 1 is the utility model main frequency furnace structure chart.
Embodiment
As shown in Figure 1, inductor coil 5 is installed on eccentric channel inner edge 6 cambered surface centers, and because of narrow 2 internal face of eccentric channel is shaped as the right angle face of being with circular arc, whole eccentric channel inner edge 6 is in eccentric position with inductor coil 5.Same inductor coil 5 also is in eccentric position with respect to whole eccentric channel outer rim 7.
Because stray field reduces to eccentric channel outer rim 7 from eccentric channel inner edge 6; Stray field is to the centrifugal effect of copper liquid in the eccentric channel, makes at the pressure of narrow 2 of eccentric channel maximumly, and it points to the component of channel bottom 4; The component that points to channel bottom 4 than wide 3 of eccentric channel is big; So cold copper liquid constantly sucks from narrow 2 of eccentric channel and enters channel in the molten bath, the direction to wide 3 of eccentric channel through channel bottom 4 flows fast, and the copper liquid of heat then constantly spues from wide 3 of eccentric channel; Pour in the molten bath, the periodic duty that goes round and begins again.
Claims (3)
1. main frequency furnace with eccentric channel; Comprise eccentric channel top (1), eccentric channel bottom (4), eccentric channel inner edge (6), eccentric channel outer rim (7) and be installed on the inductor coil (5) at eccentric channel inner edge (6) cambered surface center, it is characterized in that: the outer rim (7) of inner edge of eccentric channel (6) and eccentric channel all with inductor coil (5) off-centre.
2. main frequency furnace according to claim 1 is characterized in that: one section on described eccentric channel inner edge (6) cambered surface is the right angle face of circular arc.
3. main frequency furnace according to claim 2 is characterized in that: described eccentric channel inner edge (6) is the right angle face of band circular arc at that end near narrow (2) of eccentric channel and eccentric channel top (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201220172123XU CN202524583U (en) | 2012-04-20 | 2012-04-20 | Power frequency furnace with eccentric melting channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201220172123XU CN202524583U (en) | 2012-04-20 | 2012-04-20 | Power frequency furnace with eccentric melting channel |
Publications (1)
Publication Number | Publication Date |
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CN202524583U true CN202524583U (en) | 2012-11-07 |
Family
ID=47107507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201220172123XU Expired - Fee Related CN202524583U (en) | 2012-04-20 | 2012-04-20 | Power frequency furnace with eccentric melting channel |
Country Status (1)
Country | Link |
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CN (1) | CN202524583U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104197712A (en) * | 2014-09-22 | 2014-12-10 | 宁德东升宏宇科技有限公司 | Mains-frequency induction furnace |
-
2012
- 2012-04-20 CN CN201220172123XU patent/CN202524583U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104197712A (en) * | 2014-09-22 | 2014-12-10 | 宁德东升宏宇科技有限公司 | Mains-frequency induction furnace |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140420 |