CN211346355U - Water nozzle for vertical bottom leakage smelting furnace - Google Patents
Water nozzle for vertical bottom leakage smelting furnace Download PDFInfo
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- CN211346355U CN211346355U CN201922211481.1U CN201922211481U CN211346355U CN 211346355 U CN211346355 U CN 211346355U CN 201922211481 U CN201922211481 U CN 201922211481U CN 211346355 U CN211346355 U CN 211346355U
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- water nozzle
- honeycomb duct
- guide pipe
- smelting furnace
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Abstract
The utility model relates to a vertical end leaks for smelting furnace water chewing, chew and a plurality of honeycomb duct including the upper limit flowing water, interconnect forms a long honeycomb duct between the honeycomb duct, the upper limit flowing water is chewed and is inserted the one end of long honeycomb duct, the hole diameter that the upper limit flowing water was chewed is less than the hole diameter of honeycomb duct. The upper water-limiting nozzle of the utility model can shape the molten steel flow beam, so that the molten steel is in a uniform fine liquid column shape when being guided downwards and is kept stable when being guided downwards for a long distance; in addition, if the honeycomb duct has the damage, only the honeycomb duct that damages need be changed, can reduce the loss cost.
Description
Technical Field
The utility model belongs to the technical field of the smelting furnace and specifically relates to a vertical end leaks smelting furnace and chews with water.
Background
The steel leakage mode of the traditional vertical bottom leakage type smelting furnace is to guide the molten steel out from a water nozzle at a certain position at the bottom. In general, the water nozzle is of a short structure and is only suitable for conveying molten steel in a short distance; want to carry out long distance transport molten steel, generally increase a honeycomb duct below the water jet, nevertheless molten steel probably contacts the honeycomb duct when carrying the molten steel, causes the destruction of honeycomb duct to need to change the honeycomb duct, increased economic cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a vertical end and leak for smelting furnace water and chew, it is even tiny liquid column to make the molten steel get off to enter into the honeycomb duct through the design that the upper limit flowing water chewed, is fit for long distance transport to the honeycomb duct adopts honeycomb duct and a plurality of honeycomb duct combination design down, and honeycomb duct that change damage that can be selective need not to change honeycomb duct whole, has reduced the consumption cost.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a vertical end leaks for smelting furnace tap, chews and a plurality of honeycomb duct including the upper limit flowing water, interconnect forms a long honeycomb duct between the honeycomb duct, the upper limit flowing water is chewed and is inserted the one end of long honeycomb duct, the hole diameter that the upper limit flowing water was chewed is less than the hole diameter of honeycomb duct.
Further, the upper limit water nozzle comprises a water nozzle flow channel, the flow guide pipe comprises a flow guide channel, and the diameter of the water nozzle flow channel is smaller than that of the flow guide channel.
Furthermore, the upper-limit water nozzle comprises a notch at the top and a limit channel for connecting the notch and the water nozzle flow channel, and the diameter of the limit channel is smaller than that of the water nozzle flow channel.
Furthermore, an annular groove is also arranged on the outer side of the upper limit water nozzle.
Furthermore, the honeycomb duct includes honeycomb duct and at least one honeycomb duct down, go up the upper end of honeycomb duct and be connected with the upper limit flowing water is chewed, goes up the lower extreme of honeycomb duct and is connected with the upper end of honeycomb duct down.
Furthermore, the outer diameter of the lower end of the upper flow guide pipe is matched with the inner diameter of the upper end of the lower flow guide pipe.
Furthermore, the inner diameter of the upper end of the lower guide pipe is matched with the outer diameter of the lower end of the lower guide pipe.
The utility model has the advantages that:
1. the upper limit flow nozzle can shape the molten steel flow beam, so that the molten steel is in a uniform fine liquid column shape when guided downwards and is kept stable when guided downwards for a long distance;
2. if the fine liquid column of the molten steel deviates and is disordered, the collision between the lowest end position of the guide pipe and the inner wall of the guide pipe can be caused, so that a flow passage (the integrity of a circle of an inner hole) of the guide pipe is polluted and damaged, and the damaged guide pipe can be quickly replaced by a connecting mode of splicing a plurality of sections of guide pipes; in addition, only the damaged guide pipe section needs to be replaced, so that the loss cost can be reduced.
Drawings
FIG. 1 is a front view of the present embodiment;
FIG. 2 is a schematic cross-sectional view of the present embodiment;
FIG. 3 is an exploded view of the present embodiment;
FIG. 4 is a perspective view of the upper limit water nozzle;
FIG. 5 is a schematic cross-sectional view of FIG. 4;
fig. 6-is an enlarged schematic view of a in fig. 2.
In the figure: 1-upper limit water nozzle, 2-upper flow guide pipe, 3-lower flow guide pipe, 11-annular groove, 12-notch, 13-water nozzle flow channel, 14-limit channel, 21-first flow guide channel and 31-second flow guide channel.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to FIGS. 1 to 3: the utility model provides a vertical end leaks for smelting furnace water chew, chews 1 and a plurality of honeycomb duct including the upper limit flowing water, interconnect forms a long honeycomb duct between the honeycomb duct, the upper limit flowing water is chewed and is inserted the one end of long honeycomb duct, the hole diameter that the upper limit flowing water was chewed 1 is less than the hole diameter of honeycomb duct.
In this embodiment, the draft tube includes an upper draft tube 2 and at least one lower draft tube 3, and the selection of the lower draft tube can be determined according to the conveying distance of the molten steel.
The two ends of the upper flow guide pipe 2 are defined as the upper end and the lower end, a first flow guide channel 21 which penetrates through the upper flow guide pipe 2 is arranged in the upper flow guide pipe, and the lower end of the upper flow guide pipe is provided with external threads. The upper end and the lower end of the lower guide pipe 3 are defined at the two ends of the lower guide pipe, and a second guide channel 31 which penetrates through the lower guide pipe is arranged in the lower guide pipe; the upper end of the lower guide pipe 3 is provided with an internal thread, the lower end of the lower guide pipe 3 is provided with an external thread, the inner diameter of the upper end of the lower guide pipe 3 is matched with the outer diameter of the lower end of the lower guide pipe 3, and the inner diameter of the upper end of the lower guide pipe 3 is matched with the outer diameter of the lower end of the upper guide pipe 2.
Referring to fig. 2, 3 and 6, the lower end of the upper draft tube 2 is connected with the upper end of the lower draft tube 3 in a screw-fit manner, wherein the first diversion passage 21 in the upper draft tube 2 and the second diversion passage 31 in the lower draft tube 3 are communicated without dislocation. The seamless connection mode can ensure that the molten steel cannot overflow from the connection part of the flow guide pipe when passing through the flow guide pipe. The lower end of the lower guide pipe connected with the upper guide pipe can be connected with other lower guide pipes through threads according to requirements.
Referring to fig. 4 and 5, the upper limit water nozzle 1 is inserted into the upper end of the upper guide pipe, and the upper limit water nozzle 1 includes a notch 12 at the top, a limit passage 14 below the notch 12, and a nozzle flow passage 13 below the limit passage. After the upper limit water nozzle 1 is arranged on the upper guide pipe, the water nozzle flow channel 13 is positioned right above the first guide channel 21, and the diameter size of the water nozzle flow channel 13 is smaller than that of the first guide channel 21. The design can ensure that the molten steel entering the first diversion channel 21 from the nozzle flow channel 13 does not contact with the pipe wall of the upper diversion pipe.
The notch 12 is an arc opening, the diameter of the upper part is large, the lower part is connected with a limiting channel 14, and the diameter of the limiting channel 14 is smaller than that of the water nozzle flow channel 13. Molten steel enters from the notch and is constrained by the limiting channel to form a liquid column with the diameter equivalent to that of the limiting channel, when the liquid column continuously passes through the water nozzle flow channel downwards, the liquid column cannot be changed due to the change of the diameter of the water nozzle flow channel, and finally, the liquid column flows to the first flow guide channel and the second flow guide channel of the multi-section thread combined flow guide pipe, the change of the diameter of the liquid column cannot occur, so that the liquid column cannot be in contact with the inner wall of the flow guide pipe, and the influence on the inner wall of the flow guide pipe cannot be caused. If the final liquid column contacts with the inner wall of the guide pipe for other reasons to cause irreparable damage to the guide pipe, the other lower guide pipes except the uppermost section of the upper guide pipe can be replaced quickly after the flow guide of the batch is completed in a thread combination mode.
An annular groove 11 is also arranged on the outer side of the limiting channel of the upper water limiting nozzle, and the annular groove has the following functions: the limiting channel is in long-term contact with the molten steel, the molten steel is required to be prevented from flowing out from a gap between the limiting channel and the smelting furnace, the annular groove is formed, the refractory material is filled, and the smelting furnace and the upper limit water nozzle are finally sintered into a whole under the high-temperature roasting of the molten steel, so that the molten steel is ensured not to leak from places except the notch to cause danger.
In the embodiment, graphite is preferably selected as the material of the upper guide pipe and the lower guide pipe because of low cost and high temperature resistance of the graphite; and secondly, materials such as boron nitride, zirconium oxide, aluminum nitride and the like can be selected.
The upper limit water nozzle material is preferably boron nitride, because the melting point of boron nitride is very high; and the second material may be alumina, zirconia, graphite, aluminum nitride, etc.
The above technical features can be understood and implemented by those skilled in the art through the text description, and therefore, the accompanying drawings are not needed to be described.
Claims (7)
1. The utility model provides a vertical end leaks for smelting furnace tap which characterized in that: the water flow limiting device comprises an upper limit water nozzle and a plurality of flow guide pipes, wherein the flow guide pipes are connected with each other to form a long flow guide pipe, the upper limit water nozzle is inserted into one end of the long flow guide pipe, and the diameter of an inner hole of the upper limit water nozzle is smaller than that of the inner hole of the flow guide pipe.
2. The water nozzle for the vertical bottom leakage smelting furnace according to claim 1, characterized in that: the upper limit water nozzle comprises a water nozzle flow channel, the flow guide pipe comprises a flow guide channel, and the diameter of the water nozzle flow channel is smaller than that of the flow guide channel.
3. The water nozzle for the vertical bottom leakage smelting furnace according to claim 2, characterized in that: the upper-limit water nozzle comprises a notch at the top and a limit channel for connecting the notch and the water nozzle flow channel, and the diameter of the limit channel is smaller than that of the water nozzle flow channel.
4. The tap for a vertical bottom-drain smelting furnace according to claim 1 or 2, characterized in that: and an annular groove is also arranged on the outer side of the upper limit water nozzle.
5. The water nozzle for the vertical bottom leakage smelting furnace according to claim 1, characterized in that: the honeycomb duct includes honeycomb duct and at least one honeycomb duct down, go up the upper end of honeycomb duct and be connected with the upper limit flowing water is chewed, goes up the lower extreme of honeycomb duct and is connected with the upper end of honeycomb duct down.
6. The water nozzle for the vertical bottom leakage smelting furnace according to claim 5, characterized in that: the outer diameter of the lower end of the upper flow guide pipe is matched with the inner diameter of the upper end of the lower flow guide pipe.
7. The water nozzle for the vertical bottom leakage smelting furnace according to claim 5, characterized in that: the inner diameter of the upper end of the lower guide pipe is matched with the outer diameter of the lower end of the lower guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922211481.1U CN211346355U (en) | 2019-12-11 | 2019-12-11 | Water nozzle for vertical bottom leakage smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922211481.1U CN211346355U (en) | 2019-12-11 | 2019-12-11 | Water nozzle for vertical bottom leakage smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211346355U true CN211346355U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922211481.1U Active CN211346355U (en) | 2019-12-11 | 2019-12-11 | Water nozzle for vertical bottom leakage smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211346355U (en) |
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2019
- 2019-12-11 CN CN201922211481.1U patent/CN211346355U/en active Active
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