CN210274582U - Molten copper inductor - Google Patents
Molten copper inductor Download PDFInfo
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- CN210274582U CN210274582U CN201920900908.6U CN201920900908U CN210274582U CN 210274582 U CN210274582 U CN 210274582U CN 201920900908 U CN201920900908 U CN 201920900908U CN 210274582 U CN210274582 U CN 210274582U
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Abstract
The utility model discloses a melt copper inductor, including casing, the fusion ditch of setting in the casing, run through the fusion ditch and stretch out the first iron core of casing and set up the second iron core outside the casing and with the contact of first iron core, first iron core includes two horizontal iron cores that run through the fusion ditch and connects the connection iron core that just is located two horizontal iron core one ends between two horizontal iron cores, from interior to exterior in proper order on the horizontal iron core is overlapped and is equipped with induction coil and water-cooling cover, the second iron core is connected with the other end of two horizontal iron cores, it has refractory material to fill between fusion ditch and the casing. The utility model relates to a rationally, compact structure can effectively solve the poor and high power operation of molten metal liquidity of fusion ditch bottom and easily appear the too high problem of molten metal temperature in molten ditch flash and the blind spot, extension refractory material's life, and the practicality is strong, convenient to popularize and use.
Description
Technical Field
The utility model belongs to the technical field of the metal smelting, concretely relates to melt copper inductor.
Background
The cored induction furnace utilizes the electromagnetic induction principle to lead the melted metal to generate heat to melt the metal, and is widely applied to the nonferrous metal processing industry, in particular to the melting and heat preservation of copper and copper alloy. The inductor is the most central part of the cored induction furnace and has the function of completing the conversion between electric energy and heat energy and continuously supplying heat to the molten metal to melt the metal.
The inductor molten channel is equivalent to a secondary coil of a transformer in a cored induction furnace, and only one layer of coil presents a low-voltage and high-current situation, so that metal in the molten channel can be melted under the action of the heat effect of the high current, and liquid metal in the molten channel transfers heat to molten metal in a molten pool through the electric power and convection heat transfer. In a cored induction furnace, the entire power required to heat the metal is provided by the channel, and therefore the channel is subjected to the greatest thermal load. In a conventional cored induction furnace, the temperature of the molten metal in the channel is 100 to 150 ℃ higher than the temperature of the molten metal in the molten bath, and excessive temperature differences accelerate the deterioration of the refractory, thereby affecting the life of the inductor.
The structure forms of the inductor device for smelting copper and copper alloy are various, the inductor with a large cross section is the most widely applied at present, but the fluidity of the molten metal at the bottom of a molten channel is poor, and a dead zone is easily formed to overheat the molten metal in the molten channel so as to influence the service life of a refractory material; and when the high-power operation is carried out, the phenomenon that the molten channel is flashed off and the molten metal in the dead zone is too high in temperature melts through the refractory material is easy to occur, so that frequent overcurrent tripping and furnace leakage accidents of a power supply system are caused, and normal production activities are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a molten copper inductor, its reasonable in design, compact structure can effectively solve the poor mobility of molten metal bottom the molten channel and the high power operation easily appear molten channel flash and the too high problem of dead zone interior molten metal temperature, extension refractory material's life, and the practicality is strong, convenient to popularize and use.
In order to solve the technical problem, the utility model discloses a technical scheme is: a molten copper inductor characterized by: the induction type water-cooled generator comprises a shell, a melting channel arranged in the shell, a first iron core penetrating through the melting channel and extending out of the shell, and a second iron core arranged outside the shell and contacting with the first iron core, wherein the first iron core comprises two horizontal iron cores penetrating through the melting channel and a connecting iron core connected between the two horizontal iron cores and positioned at one end of the two horizontal iron cores;
the molten channel comprises a molten channel body and two molten channel holes symmetrically arranged on the molten channel body, the width of the center of the top of the molten channel body is greater than the width of the end part of the top of the molten channel body, and the thickness of the molten channel body between the two molten channel holes is gradually reduced from the top of the molten channel body to the middle of the molten channel body;
the outer side surface of the molten channel body consists of a straight section a, an inclined section b, an arc section c, an arc section d, an arc section e and an inclined section f which are connected in sequence, the inclined section b and the inclined section f are symmetrically arranged, the arc section c and the arc section e are symmetrically arranged, the radian range of the arc section c and the arc section e is 120-130 degrees, the radian range of the arc section d is 57-67 degrees, and the circle center of the arc section d is positioned outside two molten channel holes;
the inner ring surface of the molten groove hole is composed of a g arc surface section, an h inclined section, an i arc surface section, a j straight section, a k arc surface section and an m inclined section which are sequentially connected, the radian of the g arc surface section ranges from 85 degrees to 95 degrees, the radian of the i arc surface section ranges from 175 degrees to 185 degrees, the radian of the k arc surface section ranges from 85 degrees to 95 degrees, the circle center of the c arc surface section and the circle center of the i arc surface section are not overlapped and are positioned on the same horizontal line, and the distance between the joint of the c arc surface section and the d arc surface section and the i arc surface section is the minimum.
The copper melting inductor is characterized in that: the first iron core comprises a plurality of steel plates clamped in a first iron core clamping plate and a binding belt for fixing the steel plates in the first iron core clamping plate.
The copper melting inductor is characterized in that: the second iron core comprises a plurality of steel plates clamped in the second iron core clamping plates and binding belts for fixing the plurality of steel plates in the second iron core clamping plates.
The copper melting inductor is characterized in that: the binding belt is an insulated glass fiber cloth binding belt.
The copper melting inductor is characterized in that: and a water channel for water cooling of the shell is arranged on the shell.
The copper melting inductor is characterized in that: the water cooling jacket is a water cooling copper pipe, one end of the water cooling copper pipe is a water inlet end, the other end of the water cooling copper pipe is a water outlet end, and the water inlet end and the water outlet end extend out of the shell and are located on the same side of the shell.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses the centre of a circle at c cambered surface section place of the fusion ditch that adopts with do not coincide and be located same water flat line between the centre of a circle at i cambered surface section place, c cambered surface section with the junction of d cambered surface section with interval between the i cambered surface section is minimum, and this fusion ditch is the eccentric fusion ditch of cross-section that varies promptly, adopts the eccentric fusion ditch of cross-section that varies to be favorable to the increase of the molten metal velocity of flow in the fusion ditch, improves the mobility of molten metal bottom the fusion ditch, and the temperature of molten metal does not have too high phenomenon in making the fusion ditch, and the difficult molten metal temperature is too high and fuses refractory material in appearing fusion ditch flash and the blind area during high power operation to prolong refractory material's life and the life of inductor.
2. The utility model discloses the width at the top center of melt channel body is greater than the width of the top tip of melt channel body, two the thickness of melt channel body between the ditch hole dwindles gradually from the top of melt channel body to the middle part of melt channel body, can guarantee like this that the molten metal in the melt channel can carry out one-way flow for can obtain better circulation between the molten metal in the melt channel and the copper liquid in the furnace, the temperature difference between the molten metal in the melt channel and the copper liquid in the furnace has been reduced, and then reduce the thermal stress that refractory material bore, prolong refractory material's life, improve the homogeneity and the heating efficiency of copper liquid temperature in the furnace.
To sum up, the utility model relates to a rationally, compact structure can effectively solve the poor and high power operation of molten metal mobility in the bottom of the molten channel and easily appear the molten channel flash and the too high problem of dead zone interior molten metal temperature, prolongs refractory material's life, and the practicality is strong, convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the first iron core of the present invention.
Fig. 3 is a schematic structural diagram of the second iron core of the present invention.
FIG. 4 is a front view of the channel of the present invention.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a cross-sectional view taken along a-a of fig. 5.
Description of reference numerals:
1-a melting channel; 1-a channel body; 1-2-a molten channel hole;
2, a shell; 3-a first iron core; 3-1-horizontal iron core;
3-2-connecting the iron core; 3-3 — a first core clamp plate; 4-induction coil;
5, water cooling; 5-1-water inlet end; 5-2-water outlet end;
6-refractory material; 7-water channel; 8-a second core;
8-1-a second core clamp; 9-binding band.
Detailed Description
As shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, the present invention includes a housing 2, a melting channel 1 disposed in the housing 2, a first iron core 3 penetrating through the melting channel 1 and extending out of the housing 2, and a second iron core 8 disposed outside the housing 2 and contacting with the first iron core 3, wherein the first iron core 3 includes two horizontal iron cores 3-1 penetrating through the melting channel 1 and a connecting iron core 3-2 connected between the two horizontal iron cores 3-1 and located at one end of the two horizontal iron cores 3-1, the horizontal iron core 3-1 is sequentially sleeved with an induction coil 4 and a water cooling jacket 5 from inside to outside, the second iron core 8 is connected with the other end of the two horizontal iron cores 3-1, and a refractory material 6 is filled between the melting channel 1 and the housing 2;
the molten channel 1 comprises a molten channel body 1-1 and two molten channel holes 1-2 symmetrically arranged on the molten channel body 1-1, the width of the top center of the molten channel body 1-1 is larger than the width of the top end part of the molten channel body 1-1, and the thickness of the molten channel body 1-1 between the two molten channel holes 1-2 is gradually reduced from the top of the molten channel body 1-1 to the middle part of the molten channel body 1-1;
the outer side surface of the molten channel body 1-1 consists of a straight section a, an inclined section b, an arc section c, an arc section d, an arc section e and an inclined section f which are connected in sequence, wherein the inclined section b and the inclined section f are symmetrically arranged, the arc section c and the arc section e are symmetrically arranged, the radian range of the arc section c and the arc section e is 120-130 degrees, the radian range of the arc section d is 57-67 degrees, and the circle center of the arc section d is positioned outside two molten channel holes 1-2;
the inner ring surface of the molten groove hole 1-2 is composed of a g arc surface section, an h inclined section, an i arc surface section, a j straight section, a k arc surface section and an m inclined section which are sequentially connected, the radian of the g arc surface section ranges from 85 degrees to 95 degrees, the radian of the i arc surface section ranges from 175 degrees to 185 degrees, the radian of the k arc surface section ranges from 85 degrees to 95 degrees, the circle center of the c arc surface section and the circle center of the i arc surface section are not overlapped and are positioned on the same horizontal line, and the distance between the joint of the c arc surface section and the d arc surface section and the i arc surface section is the minimum.
In this embodiment, the circle center that the arc surface section c is located and the circle center that the arc surface section i is located do not coincide and lie in same water flat line, the distance between the junction of arc surface section c and the arc surface section d and the arc surface section i is minimum, this molten bath 1 is the eccentric molten bath of unequal cross-section promptly, adopt the eccentric molten bath of unequal cross-section to be favorable to the increase of molten metal velocity in the molten bath 1, improve the mobility of molten metal in molten bath 1 bottom, make the temperature of molten metal in the molten bath 1 not have too high phenomenon, and the molten metal temperature too high in the molten bath 1 flash and the blind spot of difficult appearance is with refractory material 6 meltings in the high power operation to prolong the life of refractory material 6 and the life of inductor.
In this embodiment, the width of the top center of the channel body 1-1 is greater than the width of the top end of the channel body 1-1, and the thickness of the channel body 1-1 between the two channel holes 1-2 is gradually reduced from the top of the channel body 1-1 to the middle of the channel body 1-1, so that the molten metal in the channel 1 can flow in one direction, better circulation can be obtained between the molten metal in the channel 1 and the copper in the hearth, the temperature difference between the molten metal in the channel 1 and the copper in the hearth is reduced, the thermal stress borne by the refractory material 6 is further reduced, the service life of the refractory material 6 is prolonged, and the uniformity and the heating efficiency of the temperature of the copper in the hearth are improved.
In this embodiment, two channel melting holes 1-2 are symmetrically arranged in the channel body 1-1, the two channel melting holes 1-2 are connected into a whole, the inductor supplies power in a single phase, and the two channel melting holes 1-2 are connected in parallel during wiring, so that the power of the inductor can be increased. Preferably, the melting channel 1 is a red copper melting channel.
In this embodiment, in the practical use process, the direction of the electromagnetic force in the molten channel 1 is perpendicular to the directions of the current and the magnetic field, i.e. transverse to the axis of the molten channel 1, so that no component velocity parallel to the axis is usually generated, and thus an eddy current is generated on the cross section of the molten channel 1, so that the molten metal in the molten channel 1 is stirred, and even an opening of the molten channel 1 simultaneously generates inward and outward movement, and such irregular movement can make the heat conduction efficiency of the molten metal in the molten channel 1 several times greater than that of the metal in the molten channel 1 in a solid state, and the temperature at the bottom of the molten channel 1 is the highest, and the temperature can be increased along with the increase of the power. In order to improve the uniformity and heating efficiency of the temperature of the molten copper in the hearth, the molten metal must completely realize unidirectional flow in the molten channel 1 along the axial direction, and only at the inlet, the outlet, the corner or the joint of the molten channel 1, the current is separated, so that a pressure difference which is beneficial to the unidirectional flow is generated. However, a symmetrical simple circuit is formed between the inlet and the outlet of the channel 1, and all longitudinal force components are cancelled out, so that unidirectional flow cannot be generated. Therefore, the unidirectional flow can only be realized by adopting different cross sections at the inlet part and the outlet part of the melting channel 1. Therefore, the variable cross-section melting channel is adopted, and the magnetic field intensity between the inner ring surface and the outer side surface of the melting channel 1 is favorable for forming a continuous longitudinal component velocity, so that the one-way flow of molten metal is realized, and the uniformity and the heating efficiency of the temperature of the molten copper in the hearth are improved.
In this embodiment, the induction coil 4 is formed by winding a high-quality cold-extruded copper pipe made of T2, the copper pipe has high density and uniform pipe wall thickness, and is not easily damaged by electric arc and expansion, and the service life of the induction coil 4 can be prolonged. The induction coil 4 considers the influence of the inherent length of the copper pipe during design, and combines the welding position of the copper pipe with the electricity and water leading position, so that no welding seam exists in each group of coils. The copper pipe is annealed and then wound on a tool, the surface of the manufactured and molded coil is subjected to acid washing and anti-oxidation treatment, a water pressing experiment is carried out, the surface of the coil is overlapped by using 0.14 multiplied by 20 mica powder tapes after no leakage is ensured, then H-grade insulating paint is used for dipping and drying, insulating moisture-proof paint is uniformly coated, and the voltage resistance of an insulating layer is more than 3000V. The process can effectively solve the problem of discharge caused by dust and conductive objects accumulated between turns of the coil and between the working coil and the short circuit ring, and can also avoid turn-to-turn creepage and ignition caused by damp insulating materials, thereby prolonging the service life of the inductor.
In this embodiment, the water cooling jacket 5 is provided on the outer ring of the induction coil 4, so that the refractory material 6 is heated uniformly in the axial direction, thereby prolonging the service life of the refractory material 6.
In this embodiment, the refractory material 6 is an unshaped refractory material, and the unshaped refractory material is a refractory material which is composed of reasonably graded granular and powdery materials and a binder and is directly used without molding and firing, and has the advantages of simple and convenient production process, short production period, low heat energy consumption, good integrity in use, strong adaptability and the like.
As shown in fig. 2, in the present embodiment, the first core 3 includes a plurality of steel plates that are inserted into the first core binder plates 3-3 and a binding band 9 that fixes the plurality of steel plates in the first core binder plates 3-3.
As shown in fig. 3, in the present embodiment, the second core 8 includes a plurality of steel plates that are inserted into the second core clamping plate 8-1 and a tie wrap 9 that fixes the plurality of steel plates in the second core clamping plate 8-1.
In this embodiment, first iron core 3 and second iron core 8 are the iron core of folding, adopt the iron core of folding to reduce the eddy current loss, and then reduce first iron core 3 and second iron core 8's calorific capacity, play the effect of protection first iron core 3 and second iron core 8. Preferably, the steel plate is made of Q235A.
In this embodiment, the binding band 9 is an insulating glass fiber cloth binding band.
In this embodiment, the insulating glass fiber cloth binding tape belongs to industrial glass fiber products, has the advantages of high heat resistance, softness, high tensile strength, good insulating property and the like, and is therefore suitable for manufacturing the first iron core 3 and the second iron core 8.
As shown in fig. 1, in the present embodiment, a water passage 7 for water-cooling the casing 2 is provided in the casing 2.
In this embodiment, the shell 2 is formed by welding steel plates, the water channel 7 is welded on the outer side of the shell 2, annealing treatment is performed after the shell 2 and the water channel 7 are welded to eliminate internal stress, and then the flange surface is processed.
In this embodiment, by welding water channel 7 on casing 2, can cool off casing 2 through letting in cooling water in water channel 7, and then cool off refractory material 6 in casing 2, prolong the life of refractory material 6 and the life of inductor.
As shown in fig. 1, in this embodiment, the water cooling jacket 5 is a water cooling copper pipe, one end of the water cooling copper pipe is a water inlet end 5-1, the other end of the water cooling copper pipe is a water outlet end 5-2, and both the water inlet end 5-1 and the water outlet end 5-2 extend out of the shell 2 and are located on the same side of the shell 2.
In the embodiment, the water-cooling copper pipe is formed by processing a groove in a corresponding water channel shape on a T2 copper plate, embedding the copper plate and rounding the groove into a round water-cooling copper pipe, the water-cooling copper pipe is cooled by adopting the whole copper pipe, the possibility of water leakage of a welding seam does not exist, and meanwhile, the water-cooling copper pipe has the advantages of high mechanical strength, good cooling effect and the like.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (6)
1. A molten copper inductor characterized by: the iron core type induction furnace comprises a shell (2), a melting channel (1) arranged in the shell (2), a first iron core (3) penetrating through the melting channel (1) and extending out of the shell (2), and a second iron core (8) arranged outside the shell (2) and contacting with the first iron core (3), wherein the first iron core (3) comprises two horizontal iron cores (3-1) penetrating through the melting channel (1) and a connecting iron core (3-2) connected between the two horizontal iron cores (3-1) and positioned at one end of each of the two horizontal iron cores (3-1), the horizontal iron cores (3-1) are sequentially sleeved with induction coils (4) and water cooling sleeves (5) from inside to outside, the second iron core (8) is connected with the other ends of the two horizontal iron cores (3-1), and refractory materials (6) are filled between the melting channel (1) and the shell (2);
the molten channel (1) comprises a molten channel body (1-1) and two molten channel holes (1-2) symmetrically arranged on the molten channel body (1-1), the width of the center of the top of the molten channel body (1-1) is greater than the width of the end part of the top of the molten channel body (1-1), and the thickness of the molten channel body (1-1) between the two molten channel holes (1-2) is gradually reduced from the top of the molten channel body (1-1) to the middle of the molten channel body (1-1);
the outer side surface of the molten channel body (1-1) consists of a straight section a, an inclined section b, an arc section c, an arc section d, an arc section e and an inclined section f which are connected in sequence, wherein the inclined section b and the inclined section f are symmetrically arranged, the arc section c and the arc section e are symmetrically arranged, the radian range of the arc section c and the arc section e is 120-130 degrees, the radian range of the arc section d is 57-67 degrees, and the circle center of the arc section d is positioned outside the two molten channel holes (1-2);
the inner ring surface of the molten groove hole (1-2) is composed of a g arc surface section, an h inclined section, an i arc surface section, a j straight section, a k arc surface section and an m inclined section which are sequentially connected, the radian of the g arc surface section ranges from 85 degrees to 95 degrees, the radian of the i arc surface section ranges from 175 degrees to 185 degrees, the radian of the k arc surface section ranges from 85 degrees to 95 degrees, the circle center of the c arc surface section and the circle center of the i arc surface section are not coincident and are positioned on the same horizontal line, and the distance between the connection part of the c arc surface section and the d arc surface section and the i arc surface section is the minimum.
2. A molten copper induction body according to claim 1, wherein: the first iron core (3) comprises a plurality of steel plates clamped in the first iron core clamping plates (3-3) and binding bands (9) for fixing the steel plates in the first iron core clamping plates (3-3).
3. A molten copper induction body according to claim 1, wherein: the second iron core (8) comprises a plurality of steel plates clamped in the second iron core clamping plates (8-1) and binding belts (9) for fixing the steel plates in the second iron core clamping plates (8-1).
4. A molten copper induction body according to claim 2 or 3, wherein: the binding belt (9) is an insulated glass fiber cloth binding belt.
5. A molten copper induction body according to claim 1, wherein: and a water channel (7) for performing water cooling on the shell (2) is arranged on the shell (2).
6. A molten copper induction body according to claim 1, wherein: the water cooling jacket (5) is a water cooling copper pipe, one end of the water cooling copper pipe is a water inlet end (5-1), the other end of the water cooling copper pipe is a water outlet end (5-2), and the water inlet end (5-1) and the water outlet end (5-2) extend out of the shell (2) and are located on the same side of the shell (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900908.6U CN210274582U (en) | 2019-06-14 | 2019-06-14 | Molten copper inductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900908.6U CN210274582U (en) | 2019-06-14 | 2019-06-14 | Molten copper inductor |
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| CN210274582U true CN210274582U (en) | 2020-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556838A (en) * | 2020-04-23 | 2021-10-26 | 董鹏 | Handheld battery type electromagnetic induction heater |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556838A (en) * | 2020-04-23 | 2021-10-26 | 董鹏 | Handheld battery type electromagnetic induction heater |
| CN113556838B (en) * | 2020-04-23 | 2023-07-11 | 董鹏 | Handheld battery type electromagnetic induction heater |
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