CN214701692U - Cooling protection box for spray gun of electric arc furnace - Google Patents
Cooling protection box for spray gun of electric arc furnace Download PDFInfo
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- CN214701692U CN214701692U CN202120497027.1U CN202120497027U CN214701692U CN 214701692 U CN214701692 U CN 214701692U CN 202120497027 U CN202120497027 U CN 202120497027U CN 214701692 U CN214701692 U CN 214701692U
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Abstract
The utility model relates to an electric arc furnace spray gun cooling protection box belongs to ferrous metallurgy technical field. The inner side plates are arranged in parallel at intervals, the two inner side plates are connected through an inner folded plate to form an open-type inner shell, a first side water inlet channel and a first side water return channel are arranged on the outer surface of one inner side plate, a second side water inlet channel is arranged on the outer surface of the other inner side plate, an inner folded plate water inlet channel and an inner folded plate water return channel are arranged on the inner folded plate, an outlet of the first side water inlet channel and an outlet of the inner folded plate water inlet channel are respectively communicated with an inlet of the second side water inlet channel, and an outlet of the second side water inlet channel is communicated with the first side water return channel through the inner folded plate water return channel; the inner shell is covered with an outer shell to form a sandwich box body; the interlayer box body is provided with a water inlet and a water outlet. This application is simple structure not only, has improved cooling effect and cooling efficiency, plays the guard action to the spray gun, has reduced manufacturing cost moreover.
Description
Technical Field
The utility model relates to an electric arc furnace spray gun cooling protection box belongs to ferrous metallurgy technical field.
Background
Electric arc furnaces utilize high temperature melting of ores and metals produced by an electrode arc. When the gas discharge forms an electric arc, the energy is concentrated, and the temperature of the arc area is more than 3000 ℃. For smelting metal, the electric arc furnace has greater process flexibility than other steel furnaces, can effectively remove impurities such as sulfur, phosphorus and the like, has easily controlled furnace temperature and small equipment floor area, and is suitable for smelting high-quality alloy steel.
The spray gun is required to be installed on the furnace wall of the electric arc furnace, but the spray gun cannot be directly installed on the furnace wall of the electric arc furnace due to the fact that the temperature of the working environment is high, and the spray gun is installed on the furnace wall through the cooling container with the cooling effect, so that the spray gun is protected. However, the existing cooling container has a complex structure, adopts a structure with double water inlets and double water outlets, has more pipes, increases the production cost, has low flow velocity of cooling water in a cooling channel and poor cooling effect, and prolongs the cooling time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an electric arc furnace spray gun cooling protection case is provided to above-mentioned prior art, reduction in production cost for the velocity of flow of cooling water improves cooling effect and cooling efficiency.
The utility model provides a technical scheme that above-mentioned problem adopted does: a cooling protection box for a spray gun of an electric arc furnace comprises two inner side plates, wherein the inner side plates are arranged in parallel at intervals, the two inner side plates are connected through an inner folded plate to form an open-type inner shell, a first side water inlet channel and a first side water return channel are arranged on the outer surface of one inner side plate, a second side water inlet channel is arranged on the outer surface of the other inner side plate, an inner folded plate water inlet channel and an inner folded plate water return channel are arranged on the inner folded plate, an outlet of the first side water inlet channel and an outlet of the inner folded plate water inlet channel are respectively communicated with an inlet of the second side water inlet channel, and an outlet of the second side water inlet channel is communicated with the first side water return channel through the inner folded plate water return channel; the inner shell is covered with an outer shell to form a sandwich box body; the interlayer box body is provided with a water inlet and a water outlet, the water inlet is respectively communicated with the inlet of the first side water inlet channel and the inlet of the inner folded plate water inlet channel, and the water outlet is communicated with the outlet of the first side water return channel; cooling water flows into the interlayer box body through the water inlet, exchanges heat with the interlayer box body and then flows out through the water outlet; the opening of the inner shell is provided with a support, the support is provided with a spray gun placing hole, the spray gun placing hole is vertically communicated with the interlayer box body, and the opening end of the interlayer box body is provided with a connecting flange plate.
The first side water inlet channel, the first side water return channel, the second side water inlet channel and the inner folded plate water inlet channel are all in a labyrinth type, and the inner folded plate water return channel is in a linear type.
The inner shell is made of copper, and the outer shell is made of stainless steel.
And the outlet end of the water inlet is provided with a water inlet groove.
And the outer shell is provided with a thermocouple for measuring the temperature of the outer shell in real time.
Compared with the prior art, the utility model has the advantages of: the utility model provides an electric arc furnace spray gun cooling protection case, adopts sandwich type center to walk the water-cooling structure, and cooling water rivers adopt labyrinth guide mode, and to runner resistance, discharge and labyrinth cooling channel's space calculation, have guaranteed that the minimum velocity of flow of cooling water is greater than the setting value for the velocity of flow of cooling water in the cooling water channel, make the interior casing of intermediate layer box obtain the best heat transfer effect, need not to dispose the cooling tube and can play the guard action to the spray gun. This application is simple structure not only, has improved cooling effect and cooling efficiency, plays the guard action to the spray gun, has reduced manufacturing cost moreover.
Drawings
FIG. 1 is a three-dimensional schematic view of a cooling protection box for a spray gun of an electric arc furnace according to an embodiment of the present invention;
FIG. 2 is a right side three-dimensional schematic view of an electric arc furnace lance cooling protective enclosure (with the outer shell removed) according to an embodiment of the present invention;
FIG. 3 is a left side three-dimensional schematic view of an electric arc furnace lance cooling protective enclosure in accordance with an embodiment of the present invention (with the outer shell removed);
FIG. 4 is a schematic view of a bracket in an electric arc furnace lance cooling protective box according to an embodiment of the present invention;
FIGS. 5-9 are schematic diagrams illustrating the directions of cooling water on different surfaces in a cooling protective box of an electric arc furnace spray gun according to an embodiment of the present invention;
in the figure, a first inner side plate 1, a first side water inlet channel 1.1, a first side water return channel 1.2, an inner folded plate 2, an inner folded plate water inlet channel 2.1, an inner folded plate water return channel 2.2, a connecting flange plate 3, a second inner side plate 4, a second side water inlet channel 4.1, a support 5, a spray gun placing hole 5.1, a thermocouple 6, a water inlet 7 and a water outlet 8 are arranged.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, 2, 3 and 4, the cooling protection box for the lance of the electric arc furnace in the embodiment comprises a first inner side plate 1 and a second inner side plate 4, wherein the first inner side plate 1 and the second inner side plate 4 are arranged in parallel at intervals, and the first inner side plate 1 and the second inner side plate 4 are connected through an inner folding plate 2 to form an open-type inner shell. The outer surface of the first inner side plate 1 is provided with a labyrinth type first side water inlet channel 1.1 and a labyrinth type first side water return channel 1.2. The outer surface of the second inner side plate 4 is provided with a labyrinth type second side water inlet channel 4.1. The inner folded plate 2 is provided with a labyrinth inner folded plate water inlet channel 2.1 and a linear inner folded plate water return channel 2.2. The outlet of the first side water inlet channel 1.1 and the outlet of the inner folded plate water inlet channel 2.1 are respectively communicated with the inlet of the second side water inlet channel 4.1, and the outlet of the second side water inlet channel 4.1 is communicated with the first side water return channel 1.2 through the inner folded plate water return channel 2.2. The outer shell is covered on the inner shell to form a sandwich box body. A water inlet 7 and a water outlet 8 are formed in the interlayer box body, the water inlet 7 is communicated with an inlet of a first side water inlet channel 1.1 and an inlet of an inner folded plate water inlet channel 2.1 respectively, and the water outlet 8 is communicated with an outlet of a first side water return channel 1.2 to form a cooling water circulation channel. The opening part of the inner shell is provided with a support 5, the support 5 is provided with a spray gun placing hole 5.1, the spray gun placing hole 5.1 is vertically communicated with the interlayer box body, and the spray gun is placed in the spray gun placing hole 5.1. The opening end of the interlayer box body is provided with the connecting flange plate 3, and the connecting flange plate 3 is fixed on the furnace wall of the electric arc furnace, so that the spray gun is arranged on the furnace wall of the electric arc furnace.
The inner shell is made of copper, and the outer shell is made of stainless steel. The thermocouple 6 is arranged on the outer shell, the end part of the thermocouple 6 is close to the surface of the outer shell, the temperature of the outer shell is measured in real time, and if the temperature is abnormal, the thermocouple can be maintained and replaced in time, and the safety of equipment is improved.
The outlet end of the water inlet 7 is provided with a water inlet groove, so that unsmooth water inlet caused by blockage of a large amount of water at the water inlet is avoided.
As shown in fig. 5-9, the sandwich type central water cooling structure is adopted in the present application, the cooling water flow adopts a labyrinth guiding mode, and the resistance to the flow channel, the water flow and the space calculation of the labyrinth cooling channel ensure that the minimum flow rate of the cooling water is greater than a set value, so that the flow rate of the cooling water in the cooling water channel is accelerated, the inner shell of the sandwich type box body obtains the best heat exchange effect, and the spray gun can be protected without configuring a cooling pipe. This application is simple structure not only, has improved cooling effect and cooling efficiency, plays the guard action to the spray gun, has reduced manufacturing cost moreover.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides an electric arc furnace spray gun cooling protective housing which characterized in that: the inner side plates are arranged in parallel at intervals, the two inner side plates are connected through an inner folded plate (2) to form an open-type inner shell, a first side water inlet channel (1.1) and a first side water return channel (1.2) are arranged on the outer surface of one inner side plate, a second side water inlet channel (4.1) is arranged on the outer surface of the other inner side plate, an inner folded plate water inlet channel (2.1) and an inner folded plate water return channel (2.2) are arranged on the inner folded plate (2), the outlet of the first side water inlet channel (1.1) and the outlet of the inner folded plate water inlet channel (2.1) are respectively communicated with the inlet of the second side water inlet channel (4.1), and the outlet of the second side water inlet channel (4.1) is communicated with the first side water return channel (1.2) through the inner folded plate water return channel (2.2); the inner shell is covered with an outer shell to form a sandwich box body; a water inlet (7) and a water outlet (8) are formed in the interlayer box body, the water inlet (7) is communicated with an inlet of the first side water inlet channel (1.1) and an inlet of the inner folded plate water inlet channel (2.1) respectively, and the water outlet (8) is communicated with an outlet of the first side water return channel (1.2); cooling water flows into the interlayer box body through the water inlet (7), exchanges heat with the interlayer box body and then flows out through the water outlet (8); a support (5) is arranged at the opening of the inner shell, a spray gun placing hole (5.1) is formed in the support (5), the spray gun placing hole (5.1) penetrates through the interlayer box body from top to bottom, and a connecting flange plate (3) is arranged at the opening end of the interlayer box body.
2. An electric arc furnace lance cooling protective enclosure as claimed in claim 1, wherein: first side inlet channel (1.1), first side return water passageway (1.2), second side inlet channel (4.1), interior folded plate inlet channel (2.1) are the labyrinth, interior folded plate return water passageway (2.2) are the orthoscopic.
3. An electric arc furnace lance cooling protective enclosure as claimed in claim 1, wherein: the inner shell is made of copper, and the outer shell is made of stainless steel.
4. An electric arc furnace lance cooling protective enclosure as claimed in claim 1, wherein: the outlet end of the water inlet (7) is provided with a water inlet groove.
5. An electric arc furnace lance cooling protective enclosure as claimed in claim 1, wherein: and the outer shell is provided with a thermocouple (6) for measuring the temperature of the outer shell in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497027.1U CN214701692U (en) | 2021-03-09 | 2021-03-09 | Cooling protection box for spray gun of electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497027.1U CN214701692U (en) | 2021-03-09 | 2021-03-09 | Cooling protection box for spray gun of electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214701692U true CN214701692U (en) | 2021-11-12 |
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ID=78570367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120497027.1U Active CN214701692U (en) | 2021-03-09 | 2021-03-09 | Cooling protection box for spray gun of electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214701692U (en) |
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2021
- 2021-03-09 CN CN202120497027.1U patent/CN214701692U/en active Active
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