CN219368352U - Novel crucible structure for intermediate frequency furnace - Google Patents
Novel crucible structure for intermediate frequency furnace Download PDFInfo
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- CN219368352U CN219368352U CN202223485458.XU CN202223485458U CN219368352U CN 219368352 U CN219368352 U CN 219368352U CN 202223485458 U CN202223485458 U CN 202223485458U CN 219368352 U CN219368352 U CN 219368352U
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Abstract
A novel crucible structure for an intermediate frequency furnace comprises: the body, the body wholly be upper portion open-ended barrel structure, the body constitute by coaxial stove edge, upper portion furnace body and lower part furnace body, the stove edge be annular tubular structure, its base is connected with the upper edge of upper portion furnace body, upper portion furnace body its longitudinal section be wide isosceles trapezoid structure down, the base of upper portion furnace body be connected with the upper edge of lower part furnace body, lower part furnace body its longitudinal section be wide isosceles trapezoid structure down, upper portion furnace body and lower part furnace body its lateral wall on evenly distributed have the exhaust hole. The beneficial effects of the utility model are as follows: the slope of the outer wall and the ratio of the high bottom reduce the flow and rotation speed of molten steel in the furnace body, and reduce the erosion of the molten steel to the furnace lining; the exhaust hole enables the furnace lining to exhaust more completely, the compactness is increased, and the integral strength of the furnace lining is improved, so that the integral service life of the refractory material is prolonged.
Description
Technical Field
The utility model belongs to the technical field of refractory linings of intermediate frequency furnaces, and particularly relates to a novel crucible structure for an intermediate frequency furnace.
Background
The intermediate frequency furnace has the advantages of small volume, light weight, high efficiency, low power consumption, quick melting and heating, easy control and high production efficiency, and is widely applied.
The refractory lining of intermediate frequency furnace used in metallurgical and foundry industry is built by using tamping machine and other equipment, and the crucible is used to make the furnace for 2-8 hr. Natural drying and baking are carried out for more than 8 hours before smelting, so that the moisture in the furnace lining is fully removed and the furnace lining has higher strength; in steel smelting, the furnace lining of the intermediate frequency furnace is in a high-temperature erosion state for a long time, the structure, the compactness and the exhaust of the furnace body completely and directly influence the strength of the furnace lining, and if the furnace body which is eroded by molten steel for a long time is not scientific in structure and incomplete in exhaust, pits appear in the furnace lining and even the furnace body penetrates steel, so that the service life is shortened.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to design a novel crucible structure for an intermediate frequency furnace, and optimize the existing furnace body, so that the phenomenon that pits appear in a furnace lining material due to incomplete exhaust in the background art, and the service life is short.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a novel crucible structure for an intermediate frequency furnace comprises: the body, the body wholly be upper portion open-ended barrel structure, the body constitute by coaxial stove edge, upper portion furnace body and lower part furnace body, the stove edge be annular tubular structure, its base is connected with the upper edge of upper portion furnace body, upper portion furnace body its longitudinal section be wide isosceles trapezoid structure down, the base of upper portion furnace body be connected with the upper edge of lower part furnace body, lower part furnace body its longitudinal section be wide isosceles trapezoid structure down, upper portion furnace body and lower part furnace body its lateral wall on evenly distributed have the exhaust hole.
The exhaust holes are multiple groups, the exhaust holes on the same horizontal line are one group, each group of exhaust holes are distributed in an annular array, two groups of upper and lower adjacent exhaust holes are staggered, the distance between the two groups of exhaust holes is 250mm, the distance between the two groups of adjacent exhaust holes is 250mm, the diameter of each exhaust hole is 4mm, and the distance between one group of exhaust holes close to the edge of the furnace and the bottom edge of the furnace is 400mm.
The wall thickness of the body is 16mm, the furnace is vertical to the furnace bottom along the outer wall of the body, and the included angle between the outer wall of the lower furnace body and the furnace bottom is 95 degrees.
The ratio of the bottom surface diameter of the body to the height of the lower furnace body is 1 to 1; the height ratio of the lower furnace body to the upper furnace body is 2 to 3.
The furnace edge is provided with a cross-shaped reinforcing rib formed by welding angle steel at the joint of the inner side of the furnace edge and the upper furnace body.
The beneficial effects of the utility model are as follows: the slope of the outer wall and the ratio of the high bottom reduce the flow and rotation speed of molten steel in the furnace body, and reduce the erosion of the molten steel to the furnace lining; the exhaust hole enables the furnace lining to exhaust more completely, the compactness is increased, and the integral strength of the furnace lining is improved, so that the integral service life of the refractory material is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
FIG. 2 is a schematic diagram of a conventional crucible.
In the figure: 1. the furnace comprises a body, 2 furnace edges, 3 upper furnace bodies, 4 lower furnace bodies, 5 exhaust holes, 6 and cross-shaped reinforcing ribs.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is to be noted that the embodiments described are merely some, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, a novel crucible structure for an intermediate frequency furnace includes: the body 1, body 1 wholly be upper portion open-ended barrel structure, body 1 constitute by coaxial stove along 2, upper portion furnace body 3 and lower part furnace body 4, stove along 2 be annular barrel structure, its base is connected with the upper edge of upper portion furnace body 3, upper portion furnace body 3 its longitudinal section be wide isosceles trapezoid structure down, the base of upper portion furnace body 3 be connected with the upper edge of lower part furnace body 4, lower portion furnace body 4 its longitudinal section be wide isosceles trapezoid structure down, upper portion furnace body 3 and lower part furnace body 4 its lateral wall on evenly distributed have the exhaust hole. The exhaust holes 5 are multiple groups, the exhaust holes 5 on the same horizontal line are one group, each group of exhaust holes 5 is distributed in an annular array, two groups of exhaust holes 5 which are adjacent up and down are arranged in a staggered mode, the distance between the two groups of exhaust holes 5 is 250mm, the distance between the two groups of adjacent exhaust holes 5 is 250mm, the diameter of each exhaust hole 5 is 4mm, and the distance between one group of exhaust holes 5 close to the furnace edge 2 and the bottom edge of the furnace edge 2 is 400mm. The wall thickness of the body 1 is 16mm, the outer wall of the furnace edge 2 is vertical to the furnace bottom, and the included angle between the outer wall of the lower furnace body 4 and the furnace bottom is 95 degrees. The ratio of the diameter of the bottom surface of the body 1 to the height of the lower furnace body 4 is 1 to 1; the height ratio of the lower furnace body 4 to the upper furnace body 3 is 2 to 3. The furnace edge 2 inboard and upper portion furnace body 3 junction be equipped with the cross strengthening rib 6 that adopts the angle steel welding to form, cross strengthening rib 6 be used for the design and be convenient for transport, demolish before putting into use.
The utility model is used in the process of using: compared with the original crucible structure, the erosion thickness of the furnace body reaches 150mm after the novel crucible is smelted by field test; the erosion thickness of the furnace body after the original crucible is smelted 75 mm, firstly, the change of inclination and the growth of the inclined edge of the lower furnace body 4 lead the molten steel in the furnace body to be layered during smelting, and the molten steel is not formed into a whole, thereby reducing the flow and rotation rate of the molten steel; secondly, the bevel edge of the lower furnace body 4 is increased to better disperse the weight of molten steel, reduce the pressure at the bottom of the furnace wall and reduce the erosion rate; a furnace lining vibrator with higher pressure intensity can be used to accelerate the masonry process of the intermediate frequency furnace; the change of the exhaust hole 5 is more reasonable and scientific, after the experiment, in the same time, the density of the furnace burden body reached by the original exhaust hole is 2.94g/cm < 3 >, the density of the furnace burden body reached by the changed exhaust hole is 3.06g/cm < 3 >, the exhaust is more complete and compact, and the safety of the furnace body is increased. In addition, the utility model increases the height of the furnace edge 2, increases the whole volume in the furnace body 1, reduces the contact time of the furnace edge material and molten steel, and ensures the safety of the furnace edge 2 during tapping.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
The utility model is not described in detail in the prior art.
Claims (5)
1. A novel crucible structure for an intermediate frequency furnace comprises: body (1), characterized by: the body (1) wholly be upper portion open-ended tubbiness structure, body (1) constitute by coaxial stove edge (2), upper portion furnace body (3) and lower part furnace body (4), stove edge (2) be annular tubular structure, its base is connected with the upper edge of upper portion furnace body (3), upper portion furnace body (3) its longitudinal section be wide isosceles trapezoid structure down, the base of upper portion furnace body (3) be connected with the upper edge of lower part furnace body (4), lower part furnace body (4) its longitudinal section be wide isosceles trapezoid structure down, upper portion furnace body (3) and lower part furnace body (4) its lateral wall on evenly distributed have exhaust hole (5).
2. The novel crucible structure for the intermediate frequency furnace according to claim 1, wherein: the exhaust holes (5) are multiple groups, the exhaust holes (5) on the same horizontal line are multiple groups, each group of exhaust holes (5) are distributed in an annular array, two groups of exhaust holes (5) which are adjacent up and down are staggered, the distance between the two groups of exhaust holes (5) is 250mm, the distance between the two groups of adjacent exhaust holes (5) is also 250mm, the diameter of each exhaust hole (5) is 4mm, and the distance between one group of exhaust holes (5) close to the furnace edge (2) and the bottom edge of the furnace edge (2) is 400mm.
3. The novel crucible structure for the intermediate frequency furnace according to claim 1, wherein: the wall thickness of the body (1) is 16mm, the outer wall of the furnace edge (2) is perpendicular to the furnace bottom, and the included angle between the outer wall of the lower furnace body (4) and the furnace bottom is 95 degrees.
4. The novel crucible structure for the intermediate frequency furnace according to claim 1, wherein: the ratio of the bottom surface diameter of the body (1) to the height of the lower furnace body (4) is 1 to 1; the height ratio of the lower furnace body (4) to the upper furnace body (3) is 2 to 3.
5. The novel crucible structure for the intermediate frequency furnace according to claim 1, wherein: the connecting part of the inner side of the furnace edge (2) and the upper furnace body (3) is provided with a cross reinforcing rib (6) formed by welding angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223485458.XU CN219368352U (en) | 2022-12-27 | 2022-12-27 | Novel crucible structure for intermediate frequency furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223485458.XU CN219368352U (en) | 2022-12-27 | 2022-12-27 | Novel crucible structure for intermediate frequency furnace |
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| Publication Number | Publication Date |
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| CN219368352U true CN219368352U (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223485458.XU Active CN219368352U (en) | 2022-12-27 | 2022-12-27 | Novel crucible structure for intermediate frequency furnace |
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2022
- 2022-12-27 CN CN202223485458.XU patent/CN219368352U/en active Active
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