CN217636834U - Continuous feeding device for medium-frequency induction furnace - Google Patents
Continuous feeding device for medium-frequency induction furnace Download PDFInfo
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- CN217636834U CN217636834U CN202221422221.4U CN202221422221U CN217636834U CN 217636834 U CN217636834 U CN 217636834U CN 202221422221 U CN202221422221 U CN 202221422221U CN 217636834 U CN217636834 U CN 217636834U
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Abstract
The utility model discloses a continuous feeding device for a medium-frequency induction furnace, which comprises a hopper bracket and a material piling hopper arranged on the hopper bracket; the hopper support comprises a rectangular mounting platform and support columns arranged at four corners of the bottom of the mounting platform, and an upper step ladder and a lower step ladder are arranged among 2 support columns on the same side; the stacking hopper is arranged on the mounting platform and is arranged in a funnel shape, the upper opening section of the stacking hopper is rectangular, the lower opening section of the stacking hopper is circular, and the middle section of the stacking hopper is rectangular and transited to the circular shape. The utility model discloses can continue stable supplementary furnace charge in process of production, avoid the furnace charge to the oven striking, the furnace charge is preheated to the outer hot flue gas of arranging in usable stove simultaneously. The purposes of reducing production cost and improving energy utilization rate are achieved.
Description
Technical Field
The utility model relates to a ferrous metallurgy's equipment, more specifically say, relate to a continuous feeding device for medium frequency induction electric furnace.
Background
In the process of smelting iron and steel in an electric furnace, raw materials (hereinafter, generically referred to as charging materials) such as various raw materials, ferroalloy and the like are required to be added, the charging materials are added into the furnace in a solid state, and the solid charging materials are increased from the normal temperature to a temperature higher than the melting temperature and then are converted into liquid molten steel through electric energy. The current electric furnace smelting equipment is continuously changed, and a large-capacity medium-frequency induction electric furnace with high production efficiency, high energy utilization rate and high furnace charge collection rate is rapidly developed.
In the production process of the medium-frequency induction furnace, the medium-frequency induction furnace has a compact structure, the main body is a melting crucible for containing liquid molten steel, and the volume of the medium-frequency induction furnace is slightly larger than the nominal steel tapping tonnage of the medium-frequency induction furnace. The bulk characteristic of the furnace burden for production is that the furnace burden fully piled in the melting crucible is melted into liquid molten steel, the volume of the liquid molten steel is reduced, the tonnage of the liquid molten steel does not reach the nominal steel tapping tonnage, furnace burden is continuously added subsequently, and the requirement of the nominal steel tapping tonnage for smelting into the liquid molten steel is gradually met. In the process of adding furnace charge to the melting crucible for multiple times, the furnace charge is generally added from a furnace mouth of the medium-frequency induction furnace by using a crane to lift the furnace charge or other equipment. In the process of adding the furnace charge, the furnace wall of a melting crucible of the intermediate frequency induction furnace is impacted, so that the furnace wall is damaged, and the production cannot be carried out.
In the prior patent application, for example, patent application No. 202020340362.6 discloses a quantitative raw material adding device remelted by an intermediate frequency electric furnace, which is characterized in that a furnace body is provided with a feeding pipe, and the feeding pipe is provided with a quantitative adding mechanism. Its advantage is quantitative addition of raw material. The defects are that the equipment can not be used in a high-temperature environment, only raw materials can be put in small batches, the equipment investment and maintenance cost is high, and the equipment can not be moved after being fixed.
Still like patent application No. 201921875817.8 discloses an intermediate frequency induction heating automatic feeding device and patent application No. 201921524532.X discloses an alloy feeding device for an intermediate frequency furnace, and the device carries out automatic feeding device through belt conveyor and conveying pipeline. Its advantages are automatic control and less field operation. The furnace has the disadvantages of multiple equipment accessories, complex control, large investment and high maintenance cost, is only suitable for small materials, is in a high position in the material feeding process, and has large impact on refractory materials of the furnace body.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that exists among the prior art, the utility model aims at providing a continuous feeding device for medium frequency induction electric furnace can continue stable supplementary furnace charge in process of production, avoids the furnace charge to the oven striking, and the furnace charge is preheated to the outer hot flue gas of arranging in the usable stove simultaneously. The purposes of reducing production cost and improving energy utilization rate are achieved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a continuous feeding device for a medium-frequency induction furnace comprises a hopper support and a stacking hopper arranged on the hopper support;
the hopper support comprises a rectangular mounting platform and support columns arranged at four corners of the bottom of the mounting platform, and an upper step ladder and a lower step ladder are arranged among 2 support columns on the same side;
the stacking hopper is arranged on the mounting platform and is arranged in a funnel shape, the upper opening section of the stacking hopper is rectangular, the lower opening section of the stacking hopper is circular, and the middle section of the stacking hopper is rectangular and transited to the circular shape.
Preferably, the support columns are arranged in a crab-foot shape.
Preferably, the arrangement range of the support columns is larger than the size of the outer edge of the furnace mouth of the medium-frequency induction furnace.
Preferably, the upper and lower stairs are provided with handrails.
Preferably, the hopper support is made of a steel plate.
Preferably, the opening of the upper opening section is larger than the size of a furnace opening of the medium-frequency induction furnace, and the diameter of the lower opening section is smaller than the size of the furnace opening of the medium-frequency induction furnace.
Preferably, the transition slope angle of the intermediate segment is greater than 45 °.
Preferably, the material piling hopper is made of a high-temperature resistant stainless steel plate.
Preferably, the stacking hopper is arranged in the middle of the mounting platform, and a plurality of reinforcing rib plates are arranged at the connecting position;
and a lifting lug is arranged on the outer side surface of the hopper support.
Preferably, the device also comprises a movable trolley and a track matched with the movable trolley;
the support column is erected on the moving trolley.
The utility model provides a continuous feeding device for medium frequency induction electric furnace has following several beneficial effect:
1) The size of the square upper opening of the stacking hopper is far larger than that of the furnace opening of the medium-frequency induction furnace, so that the operation of adding furnace materials is facilitated, the operation is more convenient and faster, and the production rhythm is improved;
2) The furnace burden slides into the medium-frequency induction furnace along the funnel-shaped stacking hopper, so that the impact on a melting crucible furnace opening and a furnace wall of the medium-frequency induction furnace can be avoided, and the equipment maintenance cost is reduced;
3) The furnace burden in the material piling hopper is preheated by upward high-temperature flue gas of the medium-frequency induction furnace, so that the waste heat recovery effect is achieved, the smelting power consumption is effectively reduced, and the energy consumption is reduced;
4) The structure is simple, the arrangement is flexible, the lifting can be carried out in place or removed according to production requirements in production, and other production requirements of the medium-frequency induction furnace are not influenced.
Drawings
FIG. 1 is a schematic perspective view of a continuous feeding device for a medium frequency induction furnace according to the present invention;
FIG. 2 is a schematic front view of the continuous feeding device for the medium frequency induction furnace of the present invention;
FIG. 3 is a schematic top view of the continuous feeding device for the medium frequency induction furnace of the present invention;
FIG. 4 is a schematic diagram of the lifting state of the continuous feeding device for the medium frequency induction furnace of the present invention;
FIG. 5 is a schematic view of the production state of the continuous feeding device for the medium frequency induction furnace of the present invention;
FIG. 6 is a schematic view showing that the continuous feeding device for the medium frequency induction furnace of the present invention is placed on a moving trolley.
Detailed Description
In order to better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the present invention provides a continuous feeding device for a medium frequency induction furnace, which comprises a hopper support 1 and a stacking hopper 2 disposed on the hopper support 1.
Hopper support 1 includes the mounting platform 101 of rectangle and welds the support column 102 that is the crab-leg form and arranges on the four corners position of mounting platform 101 bottom, is equipped with between 2 support columns 102 on the homonymy and goes up step 3.
The arrangement range of the support columns 102 needs to be larger than the size of the outer edge of the fire hole of the medium-frequency induction furnace, so that the medium-frequency induction furnace equipment is avoided, and the mounting platform 101 can be stably placed.
The hopper bracket 1 is made of steel plates by welding.
The material piling hopper 2 is welded on the middle position of the mounting platform 101 and is arranged in a funnel shape with large top and small bottom and unclosed top and bottom, so that the upper opening section 201 is square (far larger than the size of the furnace opening of the medium-frequency induction furnace) for receiving furnace materials conveniently, and the quantitative length and width and the maximum area can be realized; the lower opening section 202 is circular and is matched with the medium-frequency induction furnace, and the diameter of the lower opening section 202 is slightly smaller than the size of a furnace opening of the medium-frequency induction furnace; the middle section 203 is a square transition section to a round transition section, the middle section 203 is a smooth transition section and is funnel-shaped, and the transition slope angle of the middle section 203 is larger than 45 degrees, so that furnace burden can slide into the medium-frequency induction furnace under the action of self weight.
The stacking hopper 2 is made of high-temperature-resistant stainless steel plates through welding and can be normally used in a continuous high-temperature environment of 700 ℃, so that furnace burden in the stacking hopper can absorb discharged waste heat under high-temperature flue gas.
For improving the raw materials weight of packing into of pile hopper 2, the deep floor 4 that increases a certain amount between hopper support 1 and the pile hopper 2 provides joint strength, does not influence simultaneously the utility model discloses continuous feeding device is installed and is used for medium frequency induction furnace.
The upper and lower stairs 3 are provided with handrails 5 so that the person can conveniently observe the condition of the production furnace burden after getting on.
With reference to fig. 4 and 5, the utility model discloses continuous feeding device 100 for medium frequency induction furnace can remove as required, before the medium frequency induction furnace is produced, with continuous feeding device 100 for medium frequency induction furnace by driving 200 handling to medium frequency induction furnace top, the mouth of a stove of windrow 2 and medium frequency induction furnace is to after, steadily place continuous feeding device 100 for medium frequency induction furnace in the top of medium frequency induction furnace. The method comprises the following specific steps:
s1, before the medium-frequency induction electric furnace 300 is produced, lifting the continuous feeding device 100 for the medium-frequency induction electric furnace to the position above the medium-frequency induction electric furnace 300 by a crane 200, aligning a stacking hopper 2 behind a furnace mouth of the medium-frequency induction electric furnace 300, and placing the continuous feeding device 100 for the medium-frequency induction electric furnace above the medium-frequency induction electric furnace 300 on a production platform 500 stably;
s2, lifting and adding the furnace burden 400 into a stacking hopper 2 by a crane 200, sliding the furnace burden 400 into a melting crucible furnace of the medium-frequency induction furnace 300 by a hopper of the stacking hopper 2 until the melting crucible of the medium-frequency induction furnace 300 is fully filled with the furnace burden 400, and fully filling the furnace burden 400 into the stacking hopper 2;
s3, the intermediate frequency induction furnace 300 enters a production smelting stage, the lower layer of the furnace charge 400 is molten into liquid molten steel, the upper layer part of the furnace charge 400 continuously collapses and moves downwards, and the furnace charge 400 in the stacking hopper 2 successively slides into a melting crucible of the intermediate frequency induction furnace 300;
s4, after the consumption condition of the furnace burden 400 in the stacking hopper 2 is observed, the furnace burden 400 is lifted by the travelling crane 200 and is added into the stacking hopper 2 until the stacking state is reached;
s5, in the process of melting the furnace burden 400, high-temperature smoke generated rises, the temperature energy of the discharged smoke is absorbed by the furnace burden 400 after passing through the furnace burden 400 in the stacking hopper 2, and the temperature of the furnace burden 400 in the stacking hopper 2 rises after absorbing heat;
s6, continuing the production of the medium-frequency induction furnace 300, and repeating the steps from S3 to S5 until the standard melting tonnage of the medium-frequency induction furnace 300 is reached;
and S7, using the traveling crane 200 to lift the continuous feeding device 100 for the medium-frequency induction furnace away from the medium-frequency induction furnace 300, and completing production.
As shown in fig. 6, the continuous feeding device 100 for the medium frequency induction electric furnace of the present invention further comprises a moving trolley 6 and a track 7 adapted to the moving trolley 6, wherein the track 7 is laid on the production platform 500, and the support column 102 of the continuous feeding device 100 for the medium frequency induction electric furnace is erected on the moving trolley 6.
In the production process, the movable trolley 6 can be controlled to automatically reach the feeding position of the medium-frequency induction furnace 300, the continuous feeding device 100 for the medium-frequency induction furnace can be quickly moved and evacuated after production is finished, the travelling crane 200 is not required to be lifted, the operation is convenient and quick, and the working efficiency is greatly improved.
Will the utility model discloses continuous feeding device for medium frequency induction electric furnace applies to in the medium frequency induction electric furnace production. The furnace wall repair is improved from a furnace 35 to a furnace 55, and the maintenance cost of the equipment is reduced by 25 percent. Through furnace charge preheating, smelting power consumption is reduced by 5.25%, production cost is greatly reduced, labor intensity is reduced, and working efficiency is obviously improved.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a continuous feeding device for medium frequency induction electric furnace which characterized in that: comprises a hopper bracket and a stacking hopper arranged on the hopper bracket;
the hopper support comprises a rectangular mounting platform and support columns arranged at four corners of the bottom of the mounting platform, and an upper step ladder and a lower step ladder are arranged among 2 support columns on the same side;
the stacking hopper is arranged on the mounting platform and is arranged in a funnel shape, the upper opening section of the stacking hopper is rectangular, the lower opening section of the stacking hopper is circular, and the middle section of the stacking hopper is rectangular and transits to the circular shape.
2. The continuous feeding device for the medium-frequency induction furnace of claim 1, which is characterized in that: the support columns are arranged in a crab-leg shape.
3. The continuous feeding device for the medium-frequency induction furnace, as set forth in claim 2, is characterized in that: the arrangement range of the support columns is larger than the size of the outer edge of the furnace mouth of the medium-frequency induction furnace.
4. The continuous feeding device for the medium-frequency induction furnace of claim 2, characterized in that: and handrails are arranged on the upper step ladder and the lower step ladder.
5. The continuous feeding device for the medium-frequency induction furnace of claim 2, characterized in that: the hopper bracket is made of a steel plate.
6. The continuous feeding device for the medium-frequency induction furnace of claim 1, which is characterized in that: the opening of the upper opening section is larger than the size of a furnace opening of the medium-frequency induction furnace, and the diameter of the lower opening section is smaller than the size of the furnace opening of the medium-frequency induction furnace.
7. The continuous feeding device for the medium-frequency induction furnace of claim 6, characterized in that: the transition slope angle of the middle section is greater than 45 degrees.
8. The continuous feeding device for the medium-frequency induction furnace of claim 6, characterized in that: the material piling hopper is made of a high-temperature resistant stainless steel plate.
9. The continuous feeding device for the medium-frequency induction furnace of claim 1, which is characterized in that: the stacking hopper is arranged in the middle of the mounting platform, and a plurality of reinforcing rib plates are arranged at the connecting position;
and a lifting lug is arranged on the outer side surface of the hopper support.
10. The continuous feeding device for the medium-frequency induction furnace of claim 1, which is characterized in that: the device also comprises a movable trolley and a track matched with the movable trolley;
the support column is erected on the moving trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221422221.4U CN217636834U (en) | 2022-06-08 | 2022-06-08 | Continuous feeding device for medium-frequency induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221422221.4U CN217636834U (en) | 2022-06-08 | 2022-06-08 | Continuous feeding device for medium-frequency induction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217636834U true CN217636834U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221422221.4U Active CN217636834U (en) | 2022-06-08 | 2022-06-08 | Continuous feeding device for medium-frequency induction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217636834U (en) |
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2022
- 2022-06-08 CN CN202221422221.4U patent/CN217636834U/en active Active
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