Discharging nozzle structure of smelting submerged arc furnace

Abstract

The utility model is suitable for the technical field of smelting submerged arc furnaces, and provides a smelting submerged arc furnace discharge nozzle structure which comprises a submerged arc furnace discharge nozzle body, and grid grooves used for heat dissipation are formed in the submerged arc furnace discharge nozzle body. The supporting rods are fixedly mounted on the submerged arc furnace discharge nozzle body, the same mounting plate is welded to the supporting rods, a cavity is formed in the mounting plate, and a plurality of blowing holes are formed in the inner wall of the cavity; and the gas supply mechanism is assembled on the mounting plate and is used for cooling the submerged arc furnace discharge nozzle body. According to the discharge nozzle structure of the smelting submerged arc furnace, the problem that potential safety hazards exist in a cooling mode of an existing discharge nozzle structure of the smelting submerged arc furnace is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of smelting ore-heat furnaces, in particular to a furnace outlet structure of a smelting ore-heat furnace. Background Art

[0002] The tapping nozzle of a smelting submerged arc furnace is one of its core components. Especially during the calcium carbide smelting process, this structure plays a vital role in directing high-temperature (approximately 1800°C) liquid calcium carbide into the mouth of the calcium carbide pot. To extend the service life of the tapping nozzle, domestic submerged arc furnaces currently generally use circulating cooling water for cooling.

[0003] However, although this cooling method has effectively protected the furnace nozzle to a certain extent, long-term production practice has revealed its potential safety hazards. Specifically, due to the complexity of the cooling water system and the wear and aging caused by long-term use, water leakage occurs from time to time, which not only affects the normal operation of the furnace nozzle, but may also cause serious safety accidents.

[0004] Therefore, it is necessary to provide a smelting ore-fired furnace outlet structure to solve the above problems. Utility Model Content

[0005] The utility model provides a smelting ore-heat furnace outlet nozzle structure, aiming to solve the problem of potential safety hazards in the cooling method of the existing smelting ore-heat furnace outlet nozzle structure proposed in the above background technology.

[0006] In order to solve the above problems, the utility model is implemented as follows: a smelting ore-heating furnace nozzle structure, comprising: an ore-heating furnace nozzle body, on which a grid groove for heat dissipation is provided; a plurality of support rods fixedly mounted on the ore-heating furnace nozzle body, a same mounting plate welded to the plurality of support rods, a cavity provided inside the mounting plate, and a plurality of blowing holes provided on the inner wall of the cavity; and an air supply mechanism mounted on the mounting plate for cooling the ore-heating furnace nozzle body.

[0007] Preferably, the air supply mechanism includes: a box body fixedly mounted on the mounting plate, a cooling pipe fixedly mounted on the box body; an exhaust pipe fixedly mounted at one end of the cooling pipe, one end of the exhaust pipe extending straight into the interior of the cavity; a fan fixedly mounted on the mounting plate, a connecting pipe fixedly mounted on the exhaust end of the fan, one end of the connecting pipe fixedly connected to one end of the cooling pipe; a semiconductor refrigeration plate fixedly mounted on the box body, the cooling surface of the semiconductor refrigeration plate being in contact with the cooling pipe.

[0008] Preferably, two brackets are fixedly mounted on the box body, and the same fan is fixedly mounted on the two brackets, and the fan is arranged corresponding to the heat dissipation surface of the semiconductor refrigeration plate.

[0009] Preferably, a dustproof net is fixedly installed on the air inlet end of the fan, and the dustproof net is made of stainless steel.

[0010] Preferably, the fan is provided with a mesh cover, and the mesh cover is used to block objects.

[0011] Preferably, the diameters of the plurality of blowing holes are all 0.5 cm, and the cooling tube is made of metal.

[0012] Preferably, the two brackets are both configured to be L-shaped, and the model of the fan is FFB1212SHE.

[0013] Compared with the related art, the smelting ore-heat furnace outlet structure provided by the utility model has the following beneficial effects:

[0014] Compared with the existing technology, the smelting electric arc furnace outlet mouth structure provided by this scheme can increase the contact area between the gas and the electric arc furnace outlet mouth body by opening a grid groove on the electric arc furnace outlet mouth body. It can not only improve the heat dissipation efficiency of the electric arc furnace outlet mouth body to a certain extent, but also help to reduce the thermal stress of the electric arc furnace outlet mouth body in a high temperature environment and extend its service life. Through the use of the air supply mechanism, the used gas can be effectively cooled, and the cooled gas can be transmitted to the cavity, so that the cooling gas entering the cavity can be evenly blown to the electric arc furnace outlet mouth body through multiple blowing holes to achieve effective cooling. This design avoids the risk of water leakage caused by traditional cooling water methods, while improving the cooling efficiency and being safer to use. Through the use of the fan, the semiconductor refrigeration plate on the air supply mechanism can be cooled, and the air flow on the heat dissipation surface of the semiconductor refrigeration plate can be accelerated, thereby taking away the heat generated by the semiconductor refrigeration plate during operation, improving its heat dissipation efficiency, and ensuring that the semiconductor refrigeration plate can work continuously and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional view of a smelting ore-fired furnace outlet structure provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the outlet nozzle of the ore-generating arc furnace in the present invention;

[0017] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG;

[0018] Figure 4 This is a schematic diagram of the structure of the cooling pipe in the present invention.

[0019] Figure numerals: 1. Induction furnace outlet nozzle body; 2. Grid groove; 3. Support rod; 4. Mounting plate; 5. Box body; 6. Cooling pipe; 7. Exhaust pipe; 8. Fan; 9. Connecting pipe; 10. Semiconductor cooling plate; 11. Bracket; 12. Fan; 13. Dustproof net; 14. Blowing hole; 15. Cavity. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the description of the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0021] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The embodiment of the utility model provides a smelting ore-heat furnace outlet structure, such as Figure 1-4 As shown, the smelting ore-heat furnace nozzle structure includes: an ore-heat furnace nozzle body 1, on which a grid groove 2 for heat dissipation is provided; a plurality of support rods 3 fixedly mounted on the ore-heat furnace nozzle body 1, on which a common mounting plate 4 is welded, a cavity 15 is provided inside the mounting plate 4, and a plurality of blowing holes 14 are provided on the inner wall of the cavity 15; and an air supply mechanism for cooling the ore-heat furnace nozzle body 1 assembled on the mounting plate 4.

[0023] In this embodiment, the ore-heating furnace nozzle body 1 serves as the core component of the smelting ore-heating furnace, and grid grooves 2 for heat dissipation are opened on it. These grid grooves 2 can increase the contact area between the gas and the ore-heating furnace nozzle body 1, which can not only improve the heat dissipation efficiency of the ore-heating furnace nozzle body 1 to a certain extent, but also help to reduce the thermal stress of the ore-heating furnace nozzle body 1 in a high temperature environment and extend its service life. In order to further improve the heat dissipation effect of the ore-heating furnace nozzle body 1, the air supply mechanism can be started to transport cooling gas into the cavity 15. The cooling gas entering the cavity 15 will be discharged from multiple blowing holes 14, and the cooling gas can be evenly blown to the ore-heating furnace nozzle body 1 to achieve effective cooling. This design avoids the risk of water leakage caused by traditional cooling water methods, while improving the cooling efficiency and being safer to use.

[0024] In a further preferred embodiment of the present utility model, the air supply mechanism includes: a box body 5 fixedly mounted on the mounting plate 4, a cooling pipe 6 fixedly mounted on the box body 5; an exhaust pipe 7 fixedly mounted at one end of the cooling pipe 6, one end of the exhaust pipe 7 extending straight into the interior of the cavity 15; a fan 8 fixedly mounted on the mounting plate 4, a connecting pipe 9 fixedly mounted on the exhaust end of the fan 8, one end of the connecting pipe 9 being fixedly connected to one end of the cooling pipe 6; a semiconductor refrigeration plate 10 fixedly mounted on the box body 5, the cooling surface of the semiconductor refrigeration plate 10 being in contact with the cooling pipe 6.

[0025] In this embodiment, the air supply mechanism is used to cool the outlet nozzle body 1 of the electric arc furnace. When in use, the fan 8 and the semiconductor refrigeration plate 10 are started, and the fan 8 will transport gas to the inside of the cooling pipe 6 through the connecting pipe 9. In the process of transporting gas, the semiconductor refrigeration plate 10 will use the thermoelectric effect of the semiconductor material to cool the cooling pipe 6, thereby reducing the temperature of the gas in the cooling pipe 6 and having a cooling effect on the gas. The cooled gas will then be transported from the exhaust pipe 7 to the cavity 15 of the mounting plate 4, and finally discharged from the multiple blowing holes 14, so that the multiple blowing holes 14 can evenly blow the cooling gas to the outlet nozzle body 1 of the electric arc furnace, thereby achieving effective cooling thereof.

[0026] In a further preferred embodiment of the present invention, two brackets 11 are fixedly mounted on the box body 5 , and a same fan 12 is fixedly mounted on the two brackets 11 . The fan 12 is arranged corresponding to the heat dissipation surface of the semiconductor refrigeration plate 10 .

[0027] In this embodiment, the use of the fan 12 can accelerate the air flow on the heat dissipation surface of the semiconductor refrigeration plate 10, thereby taking away the heat generated by the semiconductor refrigeration plate 10 during operation, improving its heat dissipation efficiency, and ensuring that the semiconductor refrigeration plate 10 can work continuously and stably.

[0028] In a further preferred embodiment of the present invention, a dustproof net 13 is fixedly installed on the air inlet end of the fan 8, and the dustproof net 13 is made of stainless steel.

[0029] In this embodiment, the use of the dustproof net 13 can prevent dust in the air from entering the interior of the fan 8. The dustproof net 13 made of stainless steel has excellent corrosion resistance and durability, will not rust, and has a good service life.

[0030] In a further preferred embodiment of the present invention, a mesh cover is provided on the fan 12, and the mesh cover is used to block objects.

[0031] In this embodiment, the mesh cover can block foreign objects and prevent them from entering the fan 12 and affecting the normal operation of the fan 12 or causing damage.

[0032] In a further preferred embodiment of the present invention, the diameter of each of the plurality of blowing holes 14 is 0.5 cm, and the cooling tube 6 is made of metal.

[0033] In this embodiment, the cooling pipe 6 made of metal has good thermal conductivity and strength, can withstand high temperature and pressure, and has good corrosion resistance.

[0034] In a further preferred embodiment of the present invention, the two brackets 11 are both configured to be L-shaped, and the model of the fan 12 is FFB1212SHE.

[0035] In this embodiment, the two L-shaped brackets 11 can provide a good fixing support for the fan 12, ensuring that the fan 12 can operate stably during use.

[0036] To sum up, compared with the relevant technology, the present solution can increase the contact area between the gas and the mineral arc furnace nozzle body 1 by opening a grid groove 2 on the mineral arc furnace nozzle body 1, which can not only improve the heat dissipation efficiency of the mineral arc furnace nozzle body 1 to a certain extent, but also help to reduce the thermal stress of the mineral arc furnace nozzle body 1 in a high temperature environment and extend its service life. Through the use of the air supply mechanism, the used gas can be effectively cooled, and the cooled gas can be transmitted to the cavity 15, so that the cooling gas entering the cavity 15 can be evenly blown to the mineral arc furnace nozzle body 1 through multiple blowing holes 14 to achieve effective cooling. This design avoids the risk of water leakage caused by traditional cooling water methods, while improving the cooling efficiency and being safer to use. Through the use of the fan 12, the semiconductor refrigeration plate 10 on the air supply mechanism can be cooled, and the air flow on the heat dissipation surface of the semiconductor refrigeration plate 10 can be accelerated, thereby taking away the heat generated by the semiconductor refrigeration plate 10 during operation, improving its heat dissipation efficiency, and ensuring that the semiconductor refrigeration plate 10 can work continuously and stably.

[0037] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A smelting ore-heat furnace outlet structure, characterized in that: include: A submerged arc furnace outlet nozzle body, wherein the submerged arc furnace outlet nozzle body is provided with a grid groove for heat dissipation; A plurality of support rods fixedly mounted on the body of the submerged arc furnace outlet nozzle, a common mounting plate being welded to the plurality of support rods, a cavity being provided inside the mounting plate, and a plurality of blowing holes being opened on the inner wall of the cavity; An air supply mechanism is mounted on the mounting plate and is used to cool the outlet nozzle body of the submerged arc furnace.

2. The smelting ore-heat furnace outlet structure according to claim 1, characterized in that: The air supply mechanism comprises: A box body fixedly mounted on the mounting plate, wherein a cooling pipe is fixedly mounted on the box body; an exhaust pipe fixedly mounted at one end of the cooling pipe, wherein one end of the exhaust pipe extends straight into the interior of the cavity; A fan is fixedly mounted on the mounting plate, a connecting pipe is fixedly mounted on the exhaust end of the fan, and one end of the connecting pipe is fixedly connected to one end of the cooling pipe; A semiconductor refrigeration plate is fixedly mounted on the box body, and a cooling surface of the semiconductor refrigeration plate is in contact with the cooling tube.

3. The smelting ore arc furnace outlet structure according to claim 2, characterized in that: Two brackets are fixedly mounted on the box body, and the same fan is fixedly mounted on the two brackets. The fan is arranged corresponding to the heat dissipation surface of the semiconductor refrigeration plate.

4. The smelting ore-heat furnace outlet structure according to claim 2, characterized in that: A dustproof net is fixedly installed on the air inlet end of the fan, and the dustproof net is made of stainless steel.

5. The smelting ore-heat furnace outlet structure according to claim 3, characterized in that: The fan is provided with a mesh cover, and the mesh cover is used to block objects.

6. The smelting ore arc furnace outlet structure according to claim 2, characterized in that: The diameters of the plurality of blowing holes are all 0.5 cm, and the cooling tube is made of metal.

7. The smelting ore-heat furnace outlet structure according to claim 3, characterized in that: The two brackets are both arranged in an L shape, and the model of the fan is FFB1212SHE.

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