CN211668256U - Electric arc furnace with adjustable electrode position - Google Patents
Electric arc furnace with adjustable electrode position Download PDFInfo
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- CN211668256U CN211668256U CN201922105073.8U CN201922105073U CN211668256U CN 211668256 U CN211668256 U CN 211668256U CN 201922105073 U CN201922105073 U CN 201922105073U CN 211668256 U CN211668256 U CN 211668256U
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Abstract
An electric arc furnace with an adjustable electrode position comprises a furnace body, an electrode rod, a support frame assembly and an electrode rod front and rear position adjusting mechanism; the furnace body is of a hollow cylindrical structure with an open top, and the bottom of the furnace body is provided with a flow port for discharging molten raw materials; the electrode rods are provided with bent rod pieces, the number of the bent rod pieces is not less than three, the bent rod pieces are uniformly arranged along the circumferential direction of the side wall of the furnace body and are assembled with the electrode rod front and rear position adjusting mechanism, the tail ends of the electrode rods are provided with the melting-up electrodes, and the melting-up electrodes enter the furnace body from the top of the furnace body in an inclined insertion mode; the support frame assembly is arranged on the horizontal ground; the electrode rod front and back position adjusting mechanism is arranged on the support frame assembly. The utility model ensures the stability of the temperature in the furnace body molten bath, and achieves the purpose of meeting the production requirements of different kinds of aluminum silicate fiber products.
Description
Technical Field
The utility model relates to an electric arc furnace, especially an electric arc furnace with adjustable electrode position.
Background
The aluminum silicate fiber is a fibrous light refractory heat-insulating material developed in the first 60 years of the last century, and the production process flow is as follows: mixing, melting, blowing and drawing, cotton collecting, cotton selecting, solidifying, cooling, cutting and packaging, wherein in the melting process, an electric arc furnace is used as raw material melting equipment, namely three carbon rods (graphite electrodes) are used as conductors and are parallelly inserted into the electric arc furnace at an included angle of 120 degrees, the three electrode tips are discharged by increasing current, the generated electric arc melts the raw materials at high temperature, and then the raw materials are discharged from a spout at the bottom of the furnace body. In the raw material melting process, because the instantaneous current generated by the electric arc cannot be controlled, the temperature change in the furnace is large, so that more time and less time are needed for melting raw material liquid, and the flow passing through the flow opening at the bottom of the furnace body is unstable, thereby causing adverse effects on the product quality.
In order to solve the above problems, an electric arc furnace is produced, as shown in fig. 1 and fig. 2, the existing electric arc furnace adopts three flat-inserted electrode rods 2, an included angle of 120 degrees is formed between the three electrode rods 2, an electrode 3 at the tail end of the electrode rod 2 is buried in the furnace burden to melt, part of stone material between the electrodes is melted by external heat, the electrodes form a passage, besides the heat generated by current between the electrode 3 and the furnace burden, the resistance of the furnace burden generates considerable heat when the current passes through the furnace burden, so that raw materials are fully melted, a certain amount of solution is generated in a molten pool, the stability of stream passing through a bottom spout 4 of a furnace body 1 is improved, and the product quality is ensured.
Although the problem that the stream is unstable after raw materials are melted is solved by the existing electric arc furnace equipment, the three flat-inserted electrode rods 2 need to enter a furnace pool from the middle of a furnace body 1, a cooling water jacket needs to be arranged outside the electrode rods to avoid melting of the electrode rods 2, part of heat generated by the electrode rods is taken away by circulating water, the circulating water is easy to generate scale in a high-temperature environment, impurities can also exist in the circulating water pipeline, and therefore the circulating water pipeline is easy to be blocked, the cooling water jacket is invalid under the condition, the electrodes are damaged, and furnace shutdown accidents are caused. In addition, the electrode rod 2 of the existing electric arc furnace is in a fixed position, can not be pushed forwards or moved backwards, and can not ensure the stability of the temperature in the molten bath when the raw materials in the furnace change, so that the requirements on the raw materials are very strict, and the production requirements of different types of aluminum silicate fiber products (such as high-aluminum products, zirconium-containing products and the like) can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric arc furnace with adjustable electrode position aims at guaranteeing the stability of temperature in the molten bath through the regulation to electric arc furnace electrode position, reaches the purpose that satisfies different kinds of aluminium silicate fiber product production requirements.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electric arc furnace with an adjustable electrode position comprises a furnace body, an electrode rod, a support frame assembly and an electrode rod front and rear position adjusting mechanism; the furnace body is of a hollow cylindrical structure with an open top, and the bottom of the furnace body is provided with a flow port for discharging molten raw materials; the electrode rods are provided with bent rod pieces, the number of the bent rod pieces is not less than three, the bent rod pieces are uniformly arranged along the circumferential direction of the side wall of the furnace body and are assembled with the electrode rod front and rear position adjusting mechanism, the tail ends of the electrode rods are provided with the melting-up electrodes, and the melting-up electrodes enter the furnace body from the top of the furnace body in an inclined insertion mode; the support frame assembly is arranged on the horizontal ground; the electrode rod front and back position adjusting mechanism is arranged on the support frame assembly.
The electrode position adjustable electric arc furnace, the electrode rod front and back position adjusting mechanism comprises a motor, a rotating shaft and a moving seat; the motor is fixed on the support frame assembly, an output shaft of the motor is fixedly connected with the rotating shaft, and the rotating shaft is provided with external threads; the movable base is sleeved on the rotating shaft, an internal thread matched with the external thread of the rotating shaft is arranged in the movable base assembling hole, and the movable base and the rotating shaft form a screw nut transmission pair.
The electrode position adjustable electric arc furnace, the support frame assembly includes a support plate and a base; the base is arranged on a horizontal ground and is in a bilateral symmetry structure, the left side and the right side of the base are provided with triangular supports, the triangular supports on the left side and the right side are connected through a cross brace, the upper end of the triangular support of the base is hinged with a support plate, and the support plate can turn up and down around a hinged shaft, so that the adjustment of the up-down position of the electrode rod is realized; and a supporting plate up-down overturning driving element is arranged between the supporting plate and the base.
In the electric arc furnace with the adjustable electrode position, the support plate up-and-down overturning driving element is a cylinder or an oil cylinder, two ends of the cylinder or the oil cylinder are respectively hinged with the support plate and the base, and the support plate is driven to overturn up and down through the telescopic action of a piston rod of the cylinder or the oil cylinder.
In the electric arc furnace with the adjustable electrode position, the front and rear electrode rod position adjusting mechanism is also provided with guide rods which are fixedly arranged on the supporting plate and are symmetrically arranged in two groups from left to right; the left side and the right side of the moving seat are provided with guide sleeves, and the guide sleeves are respectively sleeved outside the corresponding guide rods.
The electrode rod is of a split structure and is assembled together through a flange connection structure.
In the electric arc furnace with the adjustable electrode position, the electrode rod is a 130-degree bent rod.
The electric arc furnace with the adjustable electrode position is characterized in that the movable seat is provided with an insulating cushion block for supporting the electrode rod, and the insulating cushion block is provided with an electrode rod gland.
The electrode position adjustable electric arc furnace, the electrode is a molybdenum electrode.
The utility model relates to an electric arc furnace with adjustable electrode position, which adopts an upward-inserting electrode rod structure, the electrode is inserted into a furnace body molten pool at an inclination angle of 130 degrees above the furnace body, and the heights, spacing distances and angles of three groups of electrode rods are adjusted by a front-back position adjusting mechanism of the electrode rods and a support plate structure which can be overturned up and down in a support frame assembly, so as to change the resistance value of furnace burden resistance and adapt to the production requirements of different types of products; the utility model discloses still design electrode rod for split type structure, assemble together through flange joint structure, consequently when electrode rod breaks down, can change at any time, avoided blowing out from the loss that new installation caused. Therefore, the utility model ensures the stability of the temperature in the furnace body molten bath and achieves the purpose of meeting the production requirements of different kinds of aluminum silicate fiber products.
Drawings
FIG. 1 is a schematic view of a prior art electric arc furnace configuration;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the structure and working principle of the electrode rod front and rear position adjusting mechanism;
FIG. 6 is a schematic view of the support frame assembly structure and operation principle;
FIG. 7 is a schematic view of the support plate being flipped up to increase the electrode spacing distance;
fig. 8 is a schematic view of the support plate turned down to reduce the electrode spacing distance.
The list of labels in the figure is:
1. a furnace body; 2. 2-1 parts of an electrode rod, 2-2 parts of a flange connecting structure and 2-2 parts of external threads; 3. a melting electrode; 4. A spout; 5. insulating cushion blocks; 6. an electrode rod gland; 7. hinging a shaft; 8. the supporting plate turns over the driving element up and down; 9. a base; 10. raw materials in the furnace; 11. a support plate; 12. the electrode rod front and rear position adjusting mechanism comprises 12-1 parts of an electrode rod front and rear position adjusting mechanism, 12-2 parts of a motor, 12-3 parts of a rotating shaft, 12-4 parts of a guide rod, 12-5 parts of a moving seat and a guide sleeve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 3 and 4, the utility model relates to an electric arc furnace with adjustable electrode position, which comprises a furnace body 1, an electrode rod 2, a support frame assembly and an electrode rod front and back position adjusting mechanism 12; the furnace body 1 is of a hollow cylindrical structure with an open top, and the bottom of the furnace body 1 is provided with a flow port 4 for discharging molten raw materials; the electrode rods 2 are bent rod pieces, the number of the rod pieces is not less than three, the rod pieces are uniformly arranged along the circumferential direction of the side wall of the furnace body 1 and are assembled with the electrode rod front and rear position adjusting mechanisms 12, the tail ends of the electrode rods 2 are provided with the melting-up electrodes 3, and the melting-up electrodes 3 adopt molybdenum electrodes and enter the furnace body from the top of the furnace body in an inclined insertion mode; the support frame assembly is arranged on the horizontal ground; the electrode rod front and rear position adjusting mechanism 12 is arranged on the support frame assembly.
Referring to fig. 3, 4 and 5, in the electric arc furnace with adjustable electrode positions of the present invention, the electrode rod front and rear position adjusting mechanism 12 includes a motor 12-1, a rotating shaft 12-2 and a moving seat 12-4; the motor 12-1 is fixed on the support frame assembly, an output shaft of the motor 12-1 is fixedly connected with the rotating shaft 12-2, and an external thread is arranged on the rotating shaft 12-2; the movable seat 12-4 is sleeved on the rotating shaft 12-2, an internal thread matched with the external thread of the rotating shaft is arranged in an assembly hole of the movable seat, and the movable seat 12-4 and the rotating shaft 12-2 form a screw nut transmission pair.
Referring to fig. 3, 4 and 6, the electric arc furnace with adjustable electrode position of the present invention, the support frame assembly includes a support plate 11 and a base 9; the base 9 is arranged on a horizontal ground and is in a bilateral symmetry structure, the left side and the right side of the base are provided with triangular supports, the triangular supports on the left side and the right side are connected through a cross brace, the upper end of the triangular support of the base 9 is hinged with a support plate 11, and the support plate 11 can be turned over up and down around a hinged shaft 7, so that the adjustment of the up-and-down position of the electrode rod 2 is realized; a supporting plate up-down overturning driving element 8 is arranged between the supporting plate 11 and the base; the support plate vertical turning driving element 8 is an air cylinder or an oil cylinder, two ends of the air cylinder or the oil cylinder are respectively hinged with the support plate 11 and the base 9, and the support plate 11 is driven to turn vertically through the telescopic action of a piston rod of the air cylinder or the oil cylinder.
Referring to fig. 5, the electric arc furnace with adjustable electrode position, the adjustment of position around the accessible electrode pole front and back position control mechanism 12 realization electrode 3, its theory of operation is: the motor 12-1 runs, an output shaft of the motor transmits rotary power to the rotating shaft 12-2, the rotating shaft 12-2 is matched with the moving seat 12-4, and the moving seat 12-4 is driven to drive the electrode rod 2 to move back and forth, so that the front and back positions of the melting electrode 3 are adjusted.
Refer to fig. 6, fig. 7, fig. 8, arc furnace with adjustable electrode position, the backup pad structure that can overturn from top to bottom through the support frame assembly realizes adjusting three group's electrode pole 2 height and angle, and its theory of operation is: the piston rod of the support plate up-and-down turning driving element 8 stretches and retracts to drive the support plate 11 to turn up and down, so that the electrode rod 2 is driven to rotate around the hinge shaft 7. FIG. 7 shows that the piston rod of the driving element 8 for turning the supporting plate up and down extends to drive the supporting plate 11 to turn upwards, so as to drive the electrode rod 2 to rotate clockwise around the hinge shaft 7, the discharge distance between two adjacent groups of electrodes 3 is increased, and the raw material 10 in the furnace is melted at a deeper position; fig. 8 shows that the piston rod of the driving element 8 for turning the supporting plate up and down retracts to drive the supporting plate 11 to turn over downwards, so as to drive the electrode rod 2 to rotate anticlockwise around the hinge shaft 7, the discharge distance between two adjacent groups of melting electrodes 3 is reduced, and the melting is performed at the position where the raw material 10 in the furnace is shallow. Therefore, the utility model discloses an realize adjusting three group's electrode pole height, spacing distance and angle in position control mechanism, the support frame assembly around the electrode pole to this resistance that changes furnace burden resistance adapts to the demand of different kind product production.
Claims (9)
1. An electric arc furnace with an adjustable electrode position is characterized by comprising a furnace body (1), an electrode rod (2), a support frame assembly and an electrode rod front and rear position adjusting mechanism (12); the furnace body (1) is of a hollow cylindrical structure with an open top, and the bottom of the furnace body (1) is provided with a spout (4) for discharging molten raw materials; the electrode rods (2) are bent rod pieces, the number of the rod pieces is not less than three, the electrode rods are uniformly arranged along the circumferential direction of the side wall of the furnace body (1), the electrode rods are assembled with the electrode rod front and rear position adjusting mechanisms (12), the tail ends of the electrode rods (2) are provided with the melting-starting electrodes (3), and the melting-starting electrodes (3) enter the furnace body from the top of the furnace body in an inclined insertion mode; the support frame assembly is arranged on the horizontal ground; the electrode rod front and back position adjusting mechanism (12) is arranged on the support frame assembly.
2. The arc furnace as claimed in claim 1, wherein the electrode rod forward and backward position adjusting mechanism (12) comprises a motor (12-1), a rotating shaft (12-2) and a moving base (12-4); the motor (12-1) is fixed on the support frame assembly, an output shaft of the motor (12-1) is fixedly connected with the rotating shaft (12-2), and an external thread is arranged on the rotating shaft (12-2); the movable seat (12-4) is sleeved on the rotating shaft (12-2), an internal thread matched with the external thread of the rotating shaft is arranged in a movable seat assembly hole, and the movable seat (12-4) and the rotating shaft (12-2) form a screw nut transmission pair.
3. The arc furnace as claimed in claim 2, wherein the support frame assembly comprises a support plate (11) and a base (9); the electrode rod adjusting device is characterized in that the base (9) is arranged on a horizontal ground and is in a bilateral symmetry structure, triangular supports are arranged on the left side and the right side of the base, the triangular supports on the left side and the right side are connected through cross braces, the upper end of the triangular support of the base (9) is hinged with the supporting plate (11), and the supporting plate (11) can be turned over up and down around the hinged shaft (7), so that the up-down position of the electrode rod (2) can be adjusted; a supporting plate up-down overturning driving element (8) is arranged between the supporting plate (11) and the base.
4. The arc furnace as claimed in claim 3, wherein the driving element (8) for tilting the support plate up and down is a cylinder or a cylinder with two ends hinged to the support plate (11) and the base (9), respectively, and the support plate (11) is driven to tilt up and down by the telescopic action of a piston rod of the cylinder or the cylinder.
5. The arc furnace with adjustable electrode position according to any of the claims 1 to 4, characterized in that the electrode rods (2) are of split construction, assembled together by means of a flanged connection (2-1).
6. The arc furnace as claimed in claim 5, in which the electrode rod (2) is a 130 ° bent rod.
7. The arc furnace with the adjustable electrode position according to claim 3, characterized in that the electrode rod front and back position adjusting mechanism (12) is further provided with guide rods (12-3), the guide rods (12-3) are fixedly arranged on the support plate (11) and are arranged in two groups in bilateral symmetry; guide sleeves (12-5) are arranged on the left side and the right side of the moving seat (12-4), and the guide sleeves (12-5) are respectively sleeved outside the corresponding guide rods (12-3).
8. Arc furnace with adjustable electrode position according to claim 3, characterized in that the support plate (11) is provided with insulating spacers (5) for supporting the electrode rod (2), onto which insulating spacers (5) an electrode rod gland (6) is fitted.
9. Arc furnace with adjustable electrode position according to claim 1, characterized in that the electrode (3) is a molybdenum electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105073.8U CN211668256U (en) | 2019-11-29 | 2019-11-29 | Electric arc furnace with adjustable electrode position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105073.8U CN211668256U (en) | 2019-11-29 | 2019-11-29 | Electric arc furnace with adjustable electrode position |
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| CN211668256U true CN211668256U (en) | 2020-10-13 |
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| CN201922105073.8U Active CN211668256U (en) | 2019-11-29 | 2019-11-29 | Electric arc furnace with adjustable electrode position |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815697A (en) * | 2020-12-31 | 2021-05-18 | 西安新达炉业工程有限责任公司 | Refractory material smelting furnace |
| CN115557521A (en) * | 2022-10-14 | 2023-01-03 | 辽宁嘉顺科技有限公司 | Method for controlling impurity migration in fused magnesium preparation process and electrode angle adjusting device |
| CN115627370A (en) * | 2022-10-28 | 2023-01-20 | 娄底市大金新材料有限责任公司 | Method for producing high-purity metal chromium by using electric arc furnace |
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2019
- 2019-11-29 CN CN201922105073.8U patent/CN211668256U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815697A (en) * | 2020-12-31 | 2021-05-18 | 西安新达炉业工程有限责任公司 | Refractory material smelting furnace |
| CN115557521A (en) * | 2022-10-14 | 2023-01-03 | 辽宁嘉顺科技有限公司 | Method for controlling impurity migration in fused magnesium preparation process and electrode angle adjusting device |
| CN115557521B (en) * | 2022-10-14 | 2023-11-10 | 辽宁嘉顺科技有限公司 | Method for controlling impurity migration in fused magnesium melting preparation process and electrode angle adjusting device |
| CN115627370A (en) * | 2022-10-28 | 2023-01-20 | 娄底市大金新材料有限责任公司 | Method for producing high-purity metal chromium by using electric arc furnace |
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