CN213747841U - Electric furnace mouth and electric arc furnace - Google Patents
Electric furnace mouth and electric arc furnace Download PDFInfo
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- CN213747841U CN213747841U CN202022017602.1U CN202022017602U CN213747841U CN 213747841 U CN213747841 U CN 213747841U CN 202022017602 U CN202022017602 U CN 202022017602U CN 213747841 U CN213747841 U CN 213747841U
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- furnace mouth
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- cooling
- electric furnace
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Abstract
The utility model discloses an electric furnace mouth and electric arc furnace. The electric furnace mouth comprises a furnace mouth body, a cooling structure and a stirring structure, the furnace mouth body is a groove-shaped structure A with two open ends, one end is a feed inlet, the furnace mouth body is close to the other end and is provided with a discharge outlet, the cooling structure surrounds the outer wall of the furnace mouth body, and the stirring device is arranged above the discharge outlet. The utility model discloses an add cooling structure at the outer wall of furnace mouth body, add the stirring structure in the top of discharge gate, in the production process of electric smelting brick, the sand mould is cast through this furnace mouth to the feed liquid, and the casting sample can form fine and close granular crystallization scope and expand to more than its inside 80mm from the sand mould epidermis.
Description
Technical Field
The utility model relates to an electric stove part technical field, concretely relates to electric stove furnace mouth and electric arc furnace.
Background
The electric melting brick is used in a high-temperature glass kiln, the using temperature is usually more than 1500 ℃, the using time is usually required to be more than 8 years, the electric melting brick is required to be resistant to glass liquid scouring erosion due to high temperature and long working time, the scouring resistance of the electric melting brick is closely related to the size of crystals of the electric melting brick, and the using time of an electric melting brick product can be ensured only by compact fine granular crystals. In the production process of the electric melting brick, the feed liquid melted in the electric arc furnace is directly cast into a sand mold through a furnace nozzle, a casting sample of the electric melting brick is obtained after cooling, compact fine grained crystals can be formed only in a range from the surface of the sand mold to the inside of the sand mold within 50mm, and if the compact fine grained crystals within a larger range are obtained, the structure of the furnace nozzle of the circuit needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point and provide an electric stove mouth, the sand mould is cast through this furnace mouth to the electric smelting brick feed liquid, and the casting sample can obtain the fine grained crystalline structure of the fine and close within a wider range.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an electric furnace mouth, includes furnace mouth body, cooling structure and stirring structure, the furnace mouth body is both ends open-ended trough-shaped structure A, and one end is the feed inlet, and the furnace mouth body is close to other end department and is equipped with the discharge gate, cooling structure surrounds the outer wall at the furnace mouth body, agitating unit locates the top of discharge gate.
The furnace mouth is arranged on an electric arc furnace, the molten material liquid in the electric arc furnace flows into an inner cavity of the furnace mouth body from a feeding hole, the cooling effect of the cooling structure promotes the rapid cooling of the material liquid, the material liquid flows out from a discharging hole after being stirred by the stirring structure, and the stirring effect of the stirring structure is favorable for enhancing the internal flow of the liquid to refine grains, so that a cast sample can obtain a compact fine grained crystalline structure in a larger range.
Further, an upward protruding structure is arranged at the bottom of the furnace mouth body, and the protruding structure is preferably an omega-shaped protrusion, so that the cross section of the furnace mouth body is omega-shaped, and dense fine granular crystals in a larger range can be obtained.
Further, the cooling structure comprises a groove-shaped structure B with two open ends, a cooling medium inlet and a cooling medium outlet are formed in the groove-shaped structure B, a cooling channel is formed between the groove-shaped structure B and the outer wall of the furnace nozzle body, cooling medium is introduced into the cooling channel, and feeding liquid is accelerated to be quenched in the production process of the electric melting brick.
Furthermore, the cross section of the groove-shaped structure B is U-shaped, so that the upper edge of the groove-shaped structure B is tightly attached to the upper edge of the groove-shaped structure A, a cooling channel is formed between the bottom of the groove-shaped structure B and the bottom of the outer wall of the groove-shaped structure B, and the feed liquid is accelerated to be quenched through the cooling effect of the cooling medium, so that the formation and solidification of crystal nuclei are accelerated.
Further, the cooling medium is cooling water or cooling gas.
Further, the one end at discharge gate place is equipped with the seal cover, and the seal cover includes end cover and the upper cover body, and the opening terminal surface of the one end at discharge gate place is hugged closely to the end cover, and the upper cover body is installed in the top of furnace mouth body.
Further, the seal sleeve is fixedly connected with the furnace mouth body through a fixing rib.
Furthermore, the stirring structure comprises a stirring wheel sheet and a stirring shaft, and the stirring shaft penetrates through the upper sleeve body to be connected with the motor.
Further, the electric furnace mouth further comprises a discharge pipe, and the discharge pipe is communicated with the discharge hole.
The utility model also provides an electric arc furnace, including electric arc furnace body and foretell electric furnace mouth, electric furnace mouth passes through feed inlet and electric arc furnace body intercommunication.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an add cooling structure at the outer wall of furnace mouth body, add the stirring structure in the top of discharge gate, in the production process of electric smelting brick, the sand mould is cast through this furnace mouth to the feed liquid, and the casting sample can form fine and close granular crystallization scope and expand to more than its inside 80mm from the sand mould epidermis.
Drawings
FIG. 1 is a schematic structural view of an electric furnace mouth of the present invention;
FIG. 2 is a front view of the electric furnace mouth of the present invention;
FIG. 3 is a top view of the electric furnace mouth of the present invention;
FIG. 4 is a schematic structural view of a furnace mouth body of the electric furnace mouth of the present invention;
FIG. 5 is a schematic structural view of a furnace mouth body and a cooling structure of the electric furnace mouth of the present invention;
FIG. 6 is a schematic structural view of a sealing sleeve of the electric furnace mouth of the present invention;
FIG. 7 is a schematic structural view of a stirring structure of the electric furnace mouth of the present invention;
FIG. 8 is a schematic structural view of a conventional electric furnace snout;
in the figure, 1-a furnace mouth body, 11-a groove-shaped structure A, 12-a feed inlet, 13-a discharge outlet, 14-a sealing sleeve, 141-an end cover, 142-an upper sleeve body and 143-a fixing rib; 2-cooling structure, 21-groove structure B, 22-cooling medium inlet, 23-cooling medium outlet, 3-stirring device, 31-stirring wheel sheet, 32-stirring shaft and 4-discharging pipe.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific embodiments. It will be understood by those skilled in the art that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
The electric furnace mouth of the embodiment, as shown in fig. 1-7, includes a mouth body 1, a cooling structure 2 and a stirring structure 3, the mouth body 1 is a groove-shaped structure a 11 with two open ends, one end is a feed inlet 12, and the mouth body 1 is close to the other end and is equipped with a discharge outlet 13, the cooling structure 2 surrounds the outer wall of the mouth body 1, and the stirring device 3 is arranged above the discharge outlet 13.
In other embodiments, an upward protruding structure is arranged at the bottom of the furnace mouth body 1, the cross section of the protruding structure can be in an omega shape, a square shape, a triangular shape and the like, and is preferably an omega-shaped protrusion, so that the cross section of the furnace mouth body 1 is in an omega shape, uniform supercooling of the whole material liquid is facilitated, and a cast sample can obtain compact fine granular crystals in a wider range.
In another embodiment, the cooling structure 2 includes a groove-shaped structure B21 with two open ends, the groove-shaped structure B21 is provided with a cooling medium inlet 22 and a cooling medium outlet 23, a cooling channel is formed between the groove-shaped structure B21 and the outer wall of the furnace nozzle body 1, and the cooling medium is introduced into the cooling channel.
In other embodiments, the cross section of the groove-shaped structure B21 is U-shaped, so that the upper edge of the groove-shaped structure B21 is tightly attached to the upper edge of the groove-shaped structure a 11, and a cooling channel is formed between the bottom of the groove-shaped structure B21 and the bottom of the outer wall of the groove-shaped structure B21, so that the feed liquid is rapidly cooled by the cooling action of the cooling medium, the formation and solidification of crystal nuclei are accelerated, and fine granular crystals are obtained.
In other embodiments, the cooling medium is cooling water or cooling gas.
In other embodiments, a sealing sleeve 14 is disposed at one end of the discharge port 13 for sealing the end of the discharge port 13, wherein the sealing sleeve 14 includes an end cap 141 and an upper sleeve body 142, the end cap 142 is tightly attached to the open end face of the end of the discharge port 13, and the upper sleeve body 142 is mounted above the furnace nozzle body 1.
In other embodiments, the sealing sleeve 14 is connected and fixed with the furnace nozzle body 1 through a fixing rib 143.
In other embodiments, the stirring structure 3 includes a stirring wheel piece 31 and a stirring shaft 32, the stirring shaft 32 passes through the upper sleeve 141 and is connected to the motor, the stirring wheel piece 31 is disposed on the stirring shaft 32, and the stirring wheel piece 31 is located above the discharge port 13, after the motor is electrically connected to the external power supply, the stirring shaft 32 is driven, and then the stirring wheel piece 31 is driven to stir the material liquid, so as to enhance the flow of the material liquid during the solidification, promote the falling of the solidified layer crystal grains and the breaking of the branch branches, and be involved in the liquid, so as to refine the crystal grains.
In other embodiments, the electric furnace mouth further comprises a discharge pipe 4, so that the feed liquid is conveniently cast into a sand mold, and the discharge pipe 4 is communicated with the discharge hole 13.
After the furnace mouth of this embodiment is installed on the electric arc furnace, insert cooling water/gas from cooling medium entry of cooling structure, flow out from the cooling medium export through cooling channel, open cooling water/gas when the electric smelting brick product is cast, the feed liquid spreads on omega-shaped protruding from the feed inlet outflow, utilize the cooling capacity of cooling water/gas and omega-shaped protruding with the whole even supercooling of feed liquid, formation and the solidification of crystal nucleus are accelerated, then flow to stirring wheel piece department, smash through the stirring vibration of stirring wheel piece, the dendritic crystal that supercooling feed liquid surface formed, further refine the crystalline grain, flow out from the discharge gate at last and cast in the sand mould, obtain electric smelting brick casting sample after the cooling.
And cutting off and analyzing the cast sample, wherein the range of compact fine granular crystals formed in the product is expanded from the sand mould skin to more than 80 mm. In addition, the product cast by the method has an extremely low internal porosity of 1-2 percent.
Comparative example
The electric furnace mouth of this comparative example, as shown in fig. 8, including furnace mouth body 1, seal cover 14 and discharging pipe 4, furnace mouth body 1 is both ends open-ended trough-shaped structure, and one end is the feed inlet, and the furnace mouth body is close to other end department and is equipped with the discharge gate, the one end at discharge gate place is equipped with seal cover 14, and seal cover 14 includes end cover and the upper cover body, and the opening terminal surface of the one end at discharge gate place is hugged closely to the end cover, and the upper cover body is installed in the top of furnace mouth body, seal cover 14 is connected fixedly through fixed muscle with the furnace mouth body, discharging pipe 4 and discharge gate intercommunication.
After the furnace mouth of the comparative example is installed on an electric arc furnace, feed liquid flows into the inner cavity of the furnace mouth body from the feeding hole, finally flows out from the discharging hole, is cast into a sand mold through the discharging pipe, and is cooled to obtain an electric melting brick casting sample.
And cutting off and analyzing a cast sample, wherein the range of compact fine granular crystals which can be formed in the interior of the fused brick product is 50mm from the surface to the interior of the sand mold, and the internal porosity of the product cast by adopting the method is higher and reaches 5-7%.
To sum up, compare in current electric stove burner structure, the utility model discloses an add cooling structure at the outer wall of burner body, add the stirring structure in the top of discharge gate, in the electric smelting brick production process, the product of casting can obtain the fine grained crystalline structure of the fine and close within a wider range.
The utility model also provides an electric arc furnace, including electric arc furnace body and foretell electric furnace mouth, electric furnace mouth passes through feed inlet and electric arc furnace body intercommunication.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an electric furnace mouth, its characterized in that, includes furnace mouth body, cooling structure and stirring structure, the furnace mouth body is both ends open-ended trough-shaped structure A, and one end is the feed inlet, and the furnace mouth body is close to the other end department and is equipped with the discharge gate, the cooling structure surrounds the outer wall at the furnace mouth body, the top of discharge gate is located to the stirring structure.
2. The electric furnace snout of claim 1 wherein the snout body is omega shaped in cross section.
3. The electric furnace mouth according to claim 2, characterized in that the cooling structure comprises a groove-shaped structure B with two open ends, a cooling medium inlet and a cooling medium outlet are arranged on the groove-shaped structure B, a cooling channel is formed between the groove-shaped structure B and the outer wall of the furnace mouth body, and the cooling medium is introduced into the cooling channel.
4. The electric furnace snout of claim 3 wherein the trough like structure B is U-shaped in cross section.
5. The electric furnace snout of claim 3 wherein the cooling medium is cooling water or cooling gas.
6. The electric furnace mouth as claimed in claim 1, wherein a sealing sleeve is provided at an end where the discharge port is located, the sealing sleeve comprises an end cap and an upper sleeve body, the end cap is tightly attached to an open end face of the end where the discharge port is located, and the upper sleeve body is installed above the furnace mouth body.
7. The electric furnace mouth as claimed in claim 6, wherein the sealing sleeve is fixedly connected with the furnace mouth body by a fixing rib.
8. The electric furnace mouth according to claim 6, wherein the stirring structure comprises a stirring wheel sheet and a stirring shaft, and the stirring shaft penetrates through the upper sleeve body and is connected with the motor.
9. The electric furnace snout of claim 1 further comprising a discharge tube in communication with the discharge port.
10. An electric arc furnace comprising an electric arc furnace body and an electric furnace snout according to any one of claims 1 to 9, the electric furnace snout communicating with the electric arc furnace body through a feed opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022017602.1U CN213747841U (en) | 2020-09-15 | 2020-09-15 | Electric furnace mouth and electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022017602.1U CN213747841U (en) | 2020-09-15 | 2020-09-15 | Electric furnace mouth and electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213747841U true CN213747841U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202022017602.1U Active CN213747841U (en) | 2020-09-15 | 2020-09-15 | Electric furnace mouth and electric arc furnace |
Country Status (1)
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| CN (1) | CN213747841U (en) |
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- 2020-09-15 CN CN202022017602.1U patent/CN213747841U/en active Active
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