CN212495287U - Fixed point pouring intermediate frequency furnace - Google Patents
Fixed point pouring intermediate frequency furnace Download PDFInfo
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- CN212495287U CN212495287U CN202020949155.0U CN202020949155U CN212495287U CN 212495287 U CN212495287 U CN 212495287U CN 202020949155 U CN202020949155 U CN 202020949155U CN 212495287 U CN212495287 U CN 212495287U
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- intermediate frequency
- frequency furnace
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Abstract
The utility model discloses a fixed point pouring intermediate frequency furnace. The intermediate frequency furnace comprises a fixed shaft, an intermediate frequency furnace support, a hydraulic cylinder and a fixing frame, wherein the intermediate frequency furnace support is fixedly connected with a furnace shell of an original intermediate frequency furnace through a fastening piece, the hydraulic cylinder for the turnover intermediate frequency furnace is designed on two sides of the intermediate frequency furnace support, the hydraulic cylinder is connected with the intermediate frequency furnace support and the fixing frame through a hinging mode, a steel bushing is welded and fixed below a furnace mouth, the fixed shaft is inserted into the steel bushing, and the fixing frame is fixedly connected with the fixed shaft. The utility model discloses do not change original intermediate frequency furnace stove outer covering and furnace body structure, can realize the pouring of fixing a position fast, practiced thrift the melting energy, driving conflict when having solved biliquid centrifugal casting provides the assurance for the accurate control of interval time and pouring temperature.
Description
Technical Field
The utility model discloses be applied to the casting field, concretely relates to be used for melting intermediate frequency furnace can realize the pouring of fixed point.
Background
The intermediate frequency furnace is a melting device commonly used in the casting industry, steel is tapped from the conventional intermediate frequency furnace as shown in the attached drawing 1, the intermediate frequency furnace is driven by a motor speed reducer to rotate around a rotating shaft 3, the rotating shaft 3 is approximately at the central position of a furnace shell 1, therefore, when the furnace mouth 2 taps, the moving track is an arc line, and when steel is received by a steel ladle, the position of the steel ladle needs to be adjusted up and down and back and forth in the tapping process so as to meet the requirement of rapid tapping of molten steel.
When the centrifugal casting double-metal cast steel pipe is produced, two intermediate frequency furnaces are needed to smelt the molten steel on the inner layer and the outer layer. In general, the pouring amount of molten steel in the inner layer is small to meet the requirement of the thickness of the inner layer and the outer layer of the bimetallic cast steel pipe, and is usually about 60-200 kg. In order to ensure the pouring temperature of the molten steel at the inner layer, the conventional method is to adopt a slightly larger intermediate frequency furnace for melting, more steel is discharged, an electronic scale is used for weighing during pouring, and the redundant molten steel is returned to the furnace. This operation results in waste of melting energy and burning of the oxidizable alloy, which is not economical. And the control of the process parameters of the interval time and the pouring temperature is difficult.
Disclosure of Invention
The utility model provides a technical problem be: the fixed-point pouring intermediate frequency furnace is arranged at a pouring position of a centrifugal machine, and can directly tap and pour without a steel ladle.
The utility model adopts the technical proposal that: the fixed-point pouring intermediate frequency furnace properly prolongs the original furnace mouth and comprises a fixed shaft, an intermediate frequency furnace bracket, a hydraulic cylinder, a fixed frame and a fastener; the intermediate frequency furnace bracket is fixedly connected with the furnace shell of the original intermediate frequency furnace by a fastener; hydraulic cylinders for turning over the intermediate frequency furnace are designed on two sides of the intermediate frequency furnace bracket and are connected with the intermediate frequency furnace bracket and the fixing frame in a hinged mode; and a steel sleeve is welded and fixed below the furnace mouth, a fixed shaft is inserted into the steel sleeve, and the fixed shaft is fixedly connected with a fixed frame.
Further, in order to facilitate weighing of the weight of the molten steel in the intermediate frequency furnace, an electronic scale is designed at the bottom of the intermediate frequency furnace support; in order to ensure the weighing accuracy, the hydraulic cylinder is connected with the intermediate frequency furnace bracket in a detachable hinged mode, and the fixed shaft is fixedly connected with the fixed frame through a detachable structure.
Furthermore, the detachable hinge structure comprises a hinge piece and a groove of a hydraulic cylinder lifting rod, a round hole of the hinge piece is sleeved with a hinge shaft welded on the bracket of the intermediate frequency furnace, and a straight rod part is inserted into the groove matched with the straight rod part.
Further, in order to realize rapid pouring, two hydraulic cylinders are designed on the side close to the furnace mouth.
The utility model has the advantages that: the utility model discloses do not change original intermediate frequency furnace stove outer covering and furnace body structure, realize the pouring of fixing a position fast, practiced thrift the melting energy, be favorable to improving and melt the molten steel quality. The pouring frees the travelling crane, solves the travelling crane conflict during the double-liquid centrifugal pouring, ensures the pouring time of the inner layer molten steel, and provides guarantee for the accurate control of the interval time and the pouring temperature.
Drawings
FIG. 1 is a schematic drawing of tapping of a conventional intermediate frequency furnace;
FIG. 2 is a schematic view of the structure of the present invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a schematic view of a hinge structure;
wherein: 1-furnace shell, 2-furnace mouth, 3-rotating shaft, 4-fixed shaft, 5-intermediate frequency furnace bracket, 6-hydraulic cylinder, 7-fixed frame, 8-fastening piece, 9-electronic scale, 10-articulated piece and 11-lifting rod.
Detailed Description
The utility model transforms the original 200kg intermediate frequency furnace, is placed at the pouring position of the centrifuge, can directly tap steel and pour the steel into a tundish, and the molten steel flows into a pipe die through the tundish, thereby realizing the pouring operation of the inner molten steel of the bimetallic centrifuge tube blank,
fig. 2 is the utility model discloses the structure is looked the sketch map mainly, gets rid of the original motor device tilting mechanism of intermediate frequency furnace, remains stove outer covering 1 and furnace body, with original furnace mouth 2 suitable extension, can satisfy approximately flow into the centre of the middle package can. The utility model discloses still include fixed axle 4, intermediate frequency furnace support 5, pneumatic cylinder 6, mount 7 and fastener 8 etc.. The fixing frame 7 is fixed and bears the weight of the whole intermediate frequency furnace and the molten steel. The matching surface of the intermediate frequency furnace bracket 5 and the furnace shell 1 follows the shape, namely the matching surface is a plane with the bottom of the furnace shell and is an arc surface with the arc surface of the furnace shell. Intermediate frequency furnace support 5 passes through fastener 8 fixed connection with stove outer covering 1, and in intermediate frequency furnace support 5 both sides, the design has pneumatic cylinder 6 for the upset intermediate frequency furnace, and pneumatic cylinder 6 is connected with intermediate frequency furnace support 5 and mount 7 through articulated mode. A steel sleeve is welded and fixed below the furnace mouth 2, a fixed shaft 4 is inserted into the steel sleeve, the steel sleeve can rotate around the fixed shaft 4, a reasonable gap is reserved between the steel sleeve and the fixed shaft 4, and the fixed shaft 4 is fixedly connected to a fixed frame 7.
An electronic scale 9 is arranged at the bottom of the intermediate frequency furnace bracket 5, and the electronic scale 9 can be fixed on the fixing frame 7 and is used for weighing the molten steel in the intermediate frequency furnace. In order to accurately weigh the weight of molten steel, the hydraulic cylinder 6 and the intermediate frequency furnace bracket 5 are in a detachable hinged mode, as shown in figure 4, a round hole of a hinged piece 10 is sleeved on a hinged shaft welded on the intermediate frequency furnace bracket 5, and a straight rod part is inserted into a groove on a lifting rod 11 of the hydraulic cylinder. When the intermediate frequency furnace is lifted, the articulated piece 10 is pressed and cannot fall off, and when the intermediate frequency furnace is put down, the hydraulic cylinder lifting rod 11 falls, the straight rod part of the articulated piece 10 is separated from the groove, so that the weight of the intermediate frequency furnace is completely applied to the electronic scale 9.
And an operating platform is arranged on the fixed frame 7 and is parallel to the furnace mouth of the intermediate frequency furnace. And the cables, the cooling water pipeline and the hydraulic pipeline behind the furnace are subjected to safety protection. The molten steel melting operation is unchanged, and after the molten steel components are qualified, the temperature is preserved for pouring. During pouring, as shown in the attached drawing 3, the hydraulic cylinder 6 acts to lift the intermediate frequency furnace bracket 5, and the intermediate frequency furnace bracket 5 supports the intermediate frequency furnace to rotate around the fixed shaft 4. The rotation center of the intermediate frequency furnace is arranged below the furnace mouth 2, and the position of the furnace mouth 2 is relatively fixed, so that fixed-point pouring is realized. The hydraulic cylinder 6 is positioned close to the side of the furnace mouth, and the purposes of short-distance jacking of the hydraulic cylinder and quick pouring of molten steel can be realized.
The melting weight of the intermediate frequency furnace is the pouring weight, and the melting weight is weighed by an electronic scale 9 supporting the intermediate frequency furnace at the bottom of the intermediate frequency furnace. When molten steel is melted, the separating hydraulic cylinder 6 is hinged with the bracket 5 of the intermediate frequency furnace, the gap between the steel bushing and the fixed shaft 4 is checked, and the intermediate frequency furnace is completely supported by the electronic scale. If necessary, the fixed shaft 4 is disassembled, and the weighing accuracy is guaranteed. Before tapping and pouring, the fixed shaft 4 is installed, and the connecting hydraulic cylinder 6 is hinged with the intermediate frequency furnace bracket 5, so that pouring operation can be realized.
The utility model discloses do not change original intermediate frequency furnace stove outer covering and furnace body structure, install on one side of centrifuge pouring end, during the pouring, the pouring position is removed to the tundish dolly, and the intermediate frequency furnace is rotatory around the fixed axle of furnace mouth under the pneumatic cylinder effect, realizes the pouring of fixing a position fast. The utility model does not use the steel ladle to connect steel, avoids the temperature drop of the molten steel in the steel ladle, and the tapping temperature is the pouring temperature, thus greatly saving the melting energy. The molten steel is changed from twice operations of once tapping into a steel ladle and once pouring into a tundish into one operation of directly pouring the tapping into the tundish, so that the oxidation of once molten steel is reduced, and the quality of the molten steel is improved. The method has the advantages of freeing the traveling crane, solving the conflict of the double-liquid centrifugal casting traveling crane, accurately controlling the interval time and the casting temperature parameters and improving the qualification rate of the double-metal cast steel pipe.
Claims (4)
1. The utility model provides a fixed point pouring intermediate frequency furnace, with original furnace mouth (2) extension, its characterized in that: comprises a fixed shaft (4), an intermediate frequency furnace bracket (5), a hydraulic cylinder (6), a fixed bracket (7) and a fastener (8); the intermediate frequency furnace bracket (5) is fixedly connected with a furnace shell (1) of the intermediate frequency furnace through a fastener (8); hydraulic cylinders (6) for turning over the intermediate frequency furnace are designed on two sides of the intermediate frequency furnace support (5), and the hydraulic cylinders (6) are connected with the intermediate frequency furnace support (5) and the fixing frame (7) in a hinged mode; a steel sleeve is fixedly welded below the furnace mouth (2), a fixed shaft (4) is inserted into the steel sleeve, and the fixed shaft (4) is fixedly connected with a fixed frame (7).
2. A spot-casting intermediate frequency furnace according to claim 1, characterized in that: an electronic scale (9) is designed at the bottom of the intermediate frequency furnace bracket (5); the hydraulic cylinder (6) is connected with the intermediate frequency furnace bracket (5) to form a detachable hinged structure; and a gap is reserved between the fixed shaft (4) and the steel sleeve.
3. A spot-casting intermediate frequency furnace according to claim 2, characterized in that: the detachable hinge structure comprises a hinge piece (10) and a groove of a hydraulic cylinder lifting rod (11); the round hole of articulated elements (10) embolias the articulated shaft of welding on intermediate frequency furnace support (5), the straight-bar of articulated elements (10) inserts in the recess.
4. A spot-casting intermediate frequency furnace according to claim 1, characterized in that: the two hydraulic cylinders (6) are designed on the side close to the furnace mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949155.0U CN212495287U (en) | 2020-05-29 | 2020-05-29 | Fixed point pouring intermediate frequency furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949155.0U CN212495287U (en) | 2020-05-29 | 2020-05-29 | Fixed point pouring intermediate frequency furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212495287U true CN212495287U (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020949155.0U Active CN212495287U (en) | 2020-05-29 | 2020-05-29 | Fixed point pouring intermediate frequency furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212495287U (en) |
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2020
- 2020-05-29 CN CN202020949155.0U patent/CN212495287U/en active Active
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