CN210400004U - Tile-drawing jetting immersion type top-blowing spray gun - Google Patents
Tile-drawing jetting immersion type top-blowing spray gun Download PDFInfo
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- CN210400004U CN210400004U CN201921319414.5U CN201921319414U CN210400004U CN 210400004 U CN210400004 U CN 210400004U CN 201921319414 U CN201921319414 U CN 201921319414U CN 210400004 U CN210400004 U CN 210400004U
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- circular plate
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Abstract
The utility model discloses a lava spray immersion type top-blown spray gun, which relates to the technical field of non-ferrous metal smelting, and comprises a hollow gun body, wherein the gun body is cylindrical, one end of the gun body is a closed end, and the other end is an open end; the side wall of the gun body of the mixing section is provided with at least two fluid interfaces; at least one Laval injection device is arranged in the gun body and is positioned between any two adjacent fluid interfaces; and a swirler is arranged in the gun body of the swirling flow section. The utility model discloses simple structure, fluid misce bene, safe and reliable, long service life.
Description
Technical Field
The utility model relates to a non ferrous metal smelting technical field especially relates to an adopt granny rag to spray mixed fluid's submergence formula top-blown spray gun.
Background
In the prior art, there are two main types of lances for submerged top-blown furnaces: the first is a telescopic lance, which is an immersed top-blown lance developed on the basis of a sirocco lance, which consists of multiple layers of sleeves, each layer of sleeve containing a fluid, and multiple fluids are mixed by the sleeves. The spray gun has the disadvantages that the outer layer of the spray gun is easy to burn and deform, the flow of fluid for cooling the outside of the spray gun is small, the cooling strength is poor, in addition, the structure of the spray gun is complex, and the manufacturing difficulty is high.
The second one is immersed tube bundle mixing top blowing lance, which is improved based on sleeve type lance and has the improvement of setting several tube bundles in the fluid mixing place to separate the fluid to be mixed. The spray gun has the disadvantages that the welding and manufacturing of the tube bundle mixing section are difficult, and the fluids to be mixed cannot be uniformly mixed; due to the fact that the space at the mixing section is narrow, if the fluid is divided into more fine pipes, gaps among the pipes are very small, welding cannot be conducted, the pipe bundles fall off in the using process, and safety accidents occur; secondly, the depth of the spray gun inserted into the molten pool cannot be monitored, so that the production efficiency is reduced; in addition, a spray gun buffer support is not arranged, the spray gun directly impacts high-temperature melt in the using process, the spray gun is bent, the service life of the spray gun is short, and the maintenance cost is high.
Disclosure of Invention
An object of the utility model is to overcome the not enough of above-mentioned technique, provide a simple structure, convenient to use, safe and reliable, mixed flow are effectual, the even granny rag of mixed flow sprays submergence formula top-blown spray gun.
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that: a Laval tile injection immersion type top-blowing spray gun comprises a hollow gun body, wherein the gun body is cylindrical, one end of the gun body is a closed end, and the other end of the gun body is an open end; the side wall of the gun body of the mixing section is provided with at least two fluid interfaces; at least one Laval injection device is arranged in the gun body and is positioned between any two adjacent fluid interfaces; and a swirler is arranged in the gun body of the swirling flow section.
Further, the swirler is a vane swirler.
Furthermore, the laval injection device comprises a circular plate, the center of the circular plate is welded on the pressure guide pipe, the outer circular surface of the circular plate is connected with the inner wall of the gun body in a seamless mode, and a plurality of laval holes are formed in the circular plate.
Furthermore, the thickness of the circular plate is 2 mm-200 mm, and the number of the Laval holes on the same circular plate is more than or equal to 2.
Furthermore, a buffer support is installed on the outer wall of the gun body of the conveying section, and a buffer is installed in the buffer support.
Further, the buffer is a spring buffer or a rubber buffer.
Further, the length of the conveying section is more than or equal to 100 mm; the length of the turbulent flow section is 100-1000 mm.
The utility model has the advantages that:
(1) simple structure, convenient manufacture, material saving, safety and reliability.
(2) The fluid is mixed more uniformly, and the fluid is mixed into the lower fluid in a horn shape after being sprayed through the Laval holes of the Laval spraying device, so that various fluids are mixed more uniformly; realizes the depth control of the spray gun inserted into the molten pool and improves the production efficiency of the submerged top-blown furnace smelting.
(3) The buffer support effectively overcomes the impact of the spray gun on the spray gun in the process of stirring a molten pool, the spray gun is not easy to bend, the service cycle of the spray gun is prolonged, the operation productivity is improved, the production cost is reduced, the vertical impact on the melt is effectively eliminated, the melt splashes less, and the blockage of high-temperature melt slag on the waste heat boiler is reduced.
(4) And a vane type full-wrap-angle swirler is adopted, so that the swirling effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the lava spray apparatus.
Fig. 3 is a schematic structural diagram of another embodiment of the present invention.
In the figure: the device comprises a gun body 1, a mixing section 2, a conveying section 3, a rotational flow section 4, a turbulent flow section 5, a fuel pipe 6, a pressure guide pipe 7, an end pressure sampler 8, a fluid interface 9, a Laval injection device 10, a circular plate 11, a Laval hole 12, a swirler 13, a buffer support 14 and a buffer 15.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a lava jet immersion type top-blowing spray gun comprises a hollow gun body 1, wherein the gun body 1 is cylindrical, one end of the gun body 1 is a closed end, the other end of the gun body is an open end, an inner cavity of the gun body 1 is sequentially divided into a mixing section 2, a conveying section 3, a rotational flow section 4 and a turbulent flow section 5 from the closed end to the open end, a fuel pipe 6 coaxially penetrates into the gun body 1 from the center of the closed end and extends into the turbulent flow section 5, a pressure guide pipe 7 is sleeved outside the fuel pipe 6 in the gun body 1, an end pressure sampler 8 is installed outside the gun body 1 at the closed end, and the end pressure sampler 8 is inserted into the gun body 1 and connected with the pressure guide pipe; the side wall of the gun body 1 of the mixing section 2 is provided with two fluid interfaces 9; a Laval injection device 10 is installed in the gun body 1, the Laval injection device 10 is located between two adjacent fluid connectors 9, the Laval injection device 10 comprises a circular plate 11, the center of the circular plate 11 is welded on the pressure guide pipe 7, the outer circular surface of the circular plate 11 is in seamless connection with the inner wall of the gun body 1, a plurality of Laval holes 12 are formed in the circular plate 11, the thickness of the circular plate 11 is 2-200 mm, and the number of the Laval holes 12 on the same circular plate 11 is more than or equal to 2; a buffer support 14 is arranged on the outer wall of the gun body 1 of the conveying section 3, a buffer 15 is arranged in the buffer support 14, the buffer 15 is a spring buffer or a rubber buffer, and the length of the conveying section 3 is more than or equal to 100 mm; a swirler 13 is arranged in the gun body 1 of the swirling flow section 4, and the swirler 13 is a vane type swirler; the length of the turbulent flow section 5 is 100-1000 mm.
Example 2
As shown in fig. 2 and 3, a lava jet immersion type top-blowing spray gun comprises a hollow gun body 1, wherein the gun body 1 is cylindrical, one end of the gun body 1 is a closed end, the other end of the gun body is an open end, an inner cavity of the gun body 1 is sequentially divided into a mixing section 2, a conveying section 3, a rotational flow section 4 and a turbulent flow section 5 from the closed end to the open end, a fuel pipe 6 coaxially penetrates into the gun body 1 from the center of the closed end and extends into the turbulent flow section 5, a pressure guide pipe 7 is sleeved outside the fuel pipe 6 in the gun body 1, an end pressure sampler 8 is installed outside the gun body 1 at the closed end, and the end pressure sampler 8 is inserted into the gun body 1 and connected with the pressure guide pipe; the side wall of the gun body 1 of the mixing section 2 is provided with three fluid interfaces 9; two Laval injection devices 10 are installed in the gun body 1, the two Laval injection devices 10 are respectively positioned between two adjacent fluid connectors 9, each Laval injection device 10 comprises a circular plate 11, the center of each circular plate 11 is welded on the pressure guide pipe 7, the outer circular surface of each circular plate 11 is connected with the inner wall of the gun body 1 in a seamless mode, a plurality of Laval holes 12 are formed in each circular plate 11, the thickness of each circular plate 11 is 2-200 mm, and the number of the Laval holes 12 in the same circular plate 11 is larger than or equal to 2; a buffer support 14 is arranged on the outer wall of the gun body 1 of the conveying section 3, a buffer 15 is arranged in the buffer support 14, the buffer 15 is a spring buffer or a rubber buffer, and the length of the conveying section 3 is more than or equal to 100 mm; a swirler 13 is arranged in the gun body 1 of the swirling flow section 4, and the swirler 13 is a vane type swirler; the length of the turbulent flow section 5 is 100-1000 mm.
The use process of the Laval tile injection immersion type top-blown spray gun comprises the following steps:
the tile-pulling jet immersion type top-blowing spray gun is hoisted to the spray gun lifting trolley by the crown block, and the buffer bracket of the tile-pulling jet immersion type top-blowing spray gun is fixed by the fixer on the spray gun lifting trolley; the fuel pipe, the fluid interface and the end pressure sampler on the Laval jet immersion type top-blown spray gun are connected to each corresponding connecting port on the lifting trolley of the spray gun. And then, starting the spray gun lifting trolley, extending the tile-pulling injection immersed top-blown spray gun into the immersed top-blown furnace, namely inserting a gun body of the turbulent flow section into a molten pool in the immersed top-blown furnace, and enabling all fluids in the tile-pulling injection immersed top-blown spray gun to enter the turbulent flow section and be sprayed into the molten pool after swirling flow of a swirler. Before the lava jet immersion type top-blown spray gun is inserted into a molten pool, the lava jet immersion type top-blown spray gun stays for a while near the surface of the molten pool, a layer of condensed slag is hung on the surface of the spray gun, the spray gun is protected by the condensed slag, the service life of the spray gun is prolonged, and the operation rate is improved.
The use method of the Laval-tile spraying immersion type top-blowing spray gun comprises the following steps:
1. the Laval jet immersion type top-blown spray gun is inserted into the immersion type top-blown furnace, different metallurgical reaction atmospheres are obtained by controlling the lifting of a spray gun trolley to adjust the depth of an insertion molten pool of the spray gun and various fluid parameters of a fluid interface of the spray gun, the space heat transfer and mass transfer of the immersion type top-blown furnace are accelerated, and the reaction speed is improved. The spray gun is suitable for smelting, converting or other metallurgical furnaces of a submerged top-blown furnace, and is suitable for smelting non-ferrous metals (including non-ferrous metal ore smelting, waste metal recovery and the like).
2. The value of the lance end pressure sampler is monitored after the lava jet immersion top-blown lance is inserted into the molten bath. If the pressure at the end of the spray gun exceeds a certain value, the spray gun is lifted a little until the pressure at the end of the spray gun is in a reasonable range; if the pressure at the end of the spray gun is lower than a certain value, the spray gun is lowered a little until the pressure at the end of the spray gun is in a reasonable range. The lifting of the spray gun is controlled through the end pressure value, so that the depth of the spray gun inserted into the molten pool is controlled within an effective range, and the efficient operation of the submerged top-blown converter is ensured. And if the end pressure disappears or is unstable in the use process, the measurement and control of the end pressure of the spray gun are resumed by purging the pressure guide pipe.
3. When the Laval-tile injection submerged top-blown lance is buried in a molten pool or the surface of the molten pool and the space in the submerged top-blown furnace are used for supplying heat, enough fluid is kept to enter the turbulent flow section, so that the cooling fluid can continuously cool the lance body of the turbulent flow section, and the smelting can be continuously carried out.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (7)
1. A Laval tile injection immersion type top-blowing spray gun comprises a hollow gun body, wherein the gun body is cylindrical, one end of the gun body is a closed end, and the other end of the gun body is an open end; the side wall of the gun body of the mixing section is provided with at least two fluid interfaces; at least one Laval injection device is arranged in the gun body and is positioned between any two adjacent fluid interfaces; and a swirler is arranged in the gun body of the swirling flow section.
2. A lava jet submerged top-blowing lance as claimed in claim 1, wherein the cyclone is a vaned cyclone.
3. The laval spray submerged top-blowing lance as claimed in claim 1, wherein the laval spray device comprises a circular plate, the center of the circular plate is welded to the pressure pipe, the outer circumferential surface of the circular plate is seamlessly connected with the inner wall of the lance body, and a plurality of laval holes are formed in the circular plate.
4. The lava spray submerged top-blowing lance of claim 3, wherein the thickness of the circular plate is 2mm to 200mm, and the number of laval holes on the same circular plate is greater than or equal to 2.
5. The lava spray submerged top-blowing lance of claim 1, wherein the outer wall of the lance body of the conveying section is provided with a buffer support, and a buffer is mounted in the buffer support.
6. A Laval injection submerged top-blowing lance as claimed in claim 5, wherein the damper is a spring damper or a rubber damper.
7. The lava spray submerged top-blowing lance of claim 1, wherein the length of the conveying section is greater than or equal to 100 mm; the length of the turbulent flow section is 100-1000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921319414.5U CN210400004U (en) | 2019-08-15 | 2019-08-15 | Tile-drawing jetting immersion type top-blowing spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921319414.5U CN210400004U (en) | 2019-08-15 | 2019-08-15 | Tile-drawing jetting immersion type top-blowing spray gun |
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| CN210400004U true CN210400004U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319701A (en) * | 2019-08-15 | 2019-10-11 | 宜兴曜源科技发展有限公司 | Bearing score sprays immersed top-blown spray gun |
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2019
- 2019-08-15 CN CN201921319414.5U patent/CN210400004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319701A (en) * | 2019-08-15 | 2019-10-11 | 宜兴曜源科技发展有限公司 | Bearing score sprays immersed top-blown spray gun |
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