CN219900220U - Blowing and cleaning device for steel ladle ventilation and air brick cup for smelting stainless steel - Google Patents
Blowing and cleaning device for steel ladle ventilation and air brick cup for smelting stainless steel Download PDFInfo
- Publication number
- CN219900220U CN219900220U CN202320930576.2U CN202320930576U CN219900220U CN 219900220 U CN219900220 U CN 219900220U CN 202320930576 U CN202320930576 U CN 202320930576U CN 219900220 U CN219900220 U CN 219900220U
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- Prior art keywords
- lance
- gas pipe
- oxygen
- long
- oxygen lance
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- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 238000003723 Smelting Methods 0.000 title claims abstract description 19
- 238000009423 ventilation Methods 0.000 title claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 14
- 239000010935 stainless steel Substances 0.000 title claims abstract description 14
- 238000007664 blowing Methods 0.000 title claims abstract description 13
- 239000011449 brick Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 title claims description 49
- 239000010959 steel Substances 0.000 title claims description 49
- 239000001301 oxygen Substances 0.000 claims abstract description 72
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 72
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000007789 gas Substances 0.000 claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000010926 purge Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a ladle ventilation and ventilation brick cup blowing and cleaning device for smelting stainless steel, which comprises a gas pipe, a handle, a coaxial retainer ring and an oxygen lance long gun, wherein the handle is connected with the gas pipe; the coaxial check ring is sleeve-shaped, the diameter of the outer ring is equal to the inner diameter of the gas pipe, and the coaxial check ring is fixedly arranged at the front part of the inner cavity of the gas pipe in a penetrating way; the tail end of the gas pipe is connected with a ball valve, and the inlet of the ball valve is connected with an oxygen pipe for supplying oxygen; the oxygen lance long lance is penetrated and fixed at the front end of the gas pipe, the tail end of the oxygen lance long lance is connected with the coaxial check ring, and the head end of the oxygen lance long lance is penetrated and arranged outside the gas pipe; screw holes are formed in the pipe wall at the front end of the gas pipe, a fastening bolt for jacking and fastening the oxygen lance long lance is connected in the screw holes, and the head end of the fastening bolt extends into the gas pipe; two handles are respectively arranged on the middle part and the rear part of the gas pipe, and the handles are fixed on the wall of the gas pipe.
Description
Technical Field
The utility model belongs to the technical field of steel smelting, and particularly relates to a steel ladle ventilation and ventilation brick cup blowing and cleaning device for smelting stainless steel.
Background
The steel ladle is used for holding molten steel and carrying out external refining and continuous casting of the molten steel, the purity of the molten steel is continuously improved along with the increase of research and development forces on variety steel, the refining forces of the molten steel are continuously deep, and the service environment of the steel ladle is more severe. In order to strictly control the high added value molten steel components, ladle bottom blowing stirring is a key factor of the external refining process. Under the condition that the components of molten steel reach the standard, the purity of the molten steel is improved, the service life of the steel ladle is prolonged, the consumption cost of refractory materials is reduced, and the method is still an important improvement direction in the steel-making field. The ladle bottom blowing air permeability is an effective method for guaranteeing the purity of molten steel and ensuring the components of the molten steel to reach the standard and the temperature of the molten steel to be uniform. The components and quality of the molten steel with high added value are directly affected by the fact that bottom blowing cannot be started or the flow rate of the bottom blowing is too small, and the arrangement of smelting production procedures, production cost and the like are directly affected. Because the stainless steel liquid has the characteristics of viscosity and difficult cleaning of solidified residual steel, the harm to smelting caused by unclean ventilation blowing and cleaning is extremely large, the steel ladle is folded and returned to the furnace, and serious malignant accidents of casting and dying the steel ladle can also occur.
Disclosure of Invention
The utility model provides a steel ladle ventilation and ventilation seat brick blowing and cleaning device for smelting stainless steel, which aims to clean the steel ladle in time and keep the steel ladle in a clean state all the time.
Therefore, the utility model adopts the following technical scheme:
the steel ladle ventilation and air brick cup blowing and cleaning device for smelting stainless steel comprises a gas pipe, a handle, a coaxial retainer ring and an oxygen lance;
the coaxial check ring is sleeve-shaped, the diameter of the outer ring is equal to the inner diameter of the gas pipe, and the coaxial check ring is fixedly arranged at the front part of the inner cavity of the gas pipe in a penetrating way; the tail end of the gas pipe is connected with a ball valve, and the inlet of the ball valve is connected with an oxygen pipe for supplying oxygen; the oxygen lance long lance is penetrated and fixed at the front end of the gas pipe, the tail end of the oxygen lance long lance is connected with the coaxial check ring, and the head end of the oxygen lance long lance is penetrated and arranged outside the gas pipe;
screw holes are formed in the pipe wall at the front end of the gas pipe, fastening bolts used for propping up and fixing the oxygen lance long gun are connected in the screw holes, and the head ends of the fastening bolts extend into the gas pipe;
two handles are respectively arranged on the middle part and the rear part of the gas pipe, and the handles are fixed on the wall of the gas pipe.
Further, the head end of the oxygen lance long lance is also connected with a lance head, the length of the oxygen lance body is 4000-4500mm, and the length of the oxygen lance head is 400-500mm.
Further, the rear part of the oxygen lance long lance is connected with a sleeve, and the outer diameter of the sleeve is equal to the inner diameter of the gas pipe, and the inner diameter of the sleeve is equal to the outer diameter of the oxygen lance long lance.
Further, the length of the sleeve is 200-300mm, the tail end of the sleeve extends into the gas pipe, and the front end of the sleeve extends out of the gas pipe.
Further, the outer diameter of the oxygen lance long lance is 40-44mm, and the inner diameter is 34-38mm.
Further, the gas pipe, the oxygen lance long lance and the sleeve are made of seamless steel pipes.
The self-made oxygen lance is added with the self-consumption type oxygen lance, the self-consumption type oxygen lance is ignited by the ignition rod, and then the self-consumption type oxygen lance is used for burning and ventilating residual steel around by oxygen, so that the residual steel can be timely and rapidly burned, purged and cleaned. The device can clean the residual steel in time and rapidly for normal turnover and abnormal offline ladle of the ladle in the smelting area. The method is mainly applied to the steel ladle used in the steelmaking and smelting of metallurgical enterprises, the cleaning of residual steel of various smelting containers and the cutting of various cold steels.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1-gas pipe, 2-ball valve, 3-coaxial retainer ring, 4-oxygen lance long gun, 5-sleeve, 6-fastening bolt and 7-handle.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in figure 1, the ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel comprises a gas pipe 1, a handle 7, a coaxial retainer ring 3 and an oxygen lance long gun 4.
The coaxial retainer ring 3 is sleeve-shaped, the diameter of the outer ring is equal to the inner diameter of the gas pipe 1, and the coaxial retainer ring 3 is fixedly arranged at the front part of the inner cavity of the gas pipe 1 in a penetrating way; the tail end of the gas pipe 1 is connected with a ball valve 2, and the inlet of the ball valve 2 is connected with an oxygen pipe for supplying oxygen; the oxygen lance long lance 4 is penetrated and fixed at the front end of the gas pipe 1, the tail end of the oxygen lance long lance 4 is connected with the coaxial retainer ring 3, and the head end of the oxygen lance long lance 4 is penetrated and arranged outside the gas pipe 1. Screw holes are formed in the pipe wall at the front end of the gas pipe 1, a fastening bolt 6 for tightly pushing and fixing the oxygen lance long lance 4 is connected in the screw holes, and the head end of the fastening bolt 6 extends into the gas pipe 1;
two handles 7 are respectively arranged on the middle part and the rear part of the air pipe 1, the handles 7 are fixed on the pipe wall of the air pipe 1, and the cleaning device can be operated by holding the two handles 7.
The head end of the oxygen lance long lance 4 is also connected with a lance head, the length of the oxygen lance body is 4000-4500mm, the length of the oxygen lance head is 400-500mm, the outer diameter of the oxygen lance long lance 4 is 40-44mm, and the inner diameter is 34-38mm. The rear part of the oxygen lance long lance 4 is connected with a sleeve 5, and the outer diameter of the sleeve 5 is equal to the inner diameter of the gas pipe 1, and the inner diameter is equal to the outer diameter of the oxygen lance long lance 4. The length of the sleeve 5 is 200-300mm, the tail end of the sleeve 5 extends into the gas pipe 1, and the front end extends out of the gas pipe 1. The gas pipe 1, the oxygen lance long lance 4 and the sleeve 5 are made of seamless steel pipes.
The application method of the utility model is as follows:
(1) cleaning operation of cold steel
The ball valve 2 is opened with a proper amount of oxygen, the ignition rod ignites the oxygen lance, the ignited oxygen lance is placed at a designated position by utilizing the oxygen lance long lance 4, the residual steel is melted, the oxygen flow is increased after the residual steel is melted to support combustion, the residual steel is melted, the oxygen lance is replaced, and designated part cleaning operation is carried out; repeating the steps until the operation is finished, closing the valve, and placing the device at a designated station.
(2) Hot turnover ladle cleaning operation
The ball valve 2 is opened with a proper amount of oxygen, the oxygen lance is guided and burned by utilizing the temperature of the hot turnover steel ladle red steel, the oxygen lance long lance 4 is moved to drive the oxygen lance to be placed at a designated position, the oxygen blowing flow is increased to support combustion, melt the residual steel, and purge and clean the operation part. Repeating the steps until the operation is finished, closing the valve, and placing the device at a designated station.
(3) Cutting operation
The ball valve 2 is opened with a proper amount of oxygen, the ignition rod ignites the oxygen lance, the ignited oxygen lance is placed at a designated position by utilizing the oxygen lance long lance 4, the residual steel is melted, the oxygen flow is increased to support combustion, the residual steel is melted, and designated position cleaning operation is performed; the steps are repeated by only replacing the oxygen lance in the middle, and are not repeated here.
Claims (6)
1. The steel ladle ventilation and air brick cup blowing and cleaning device for smelting stainless steel is characterized by comprising a gas pipe (1), a handle (7), a coaxial retainer ring (3) and an oxygen lance long gun (4);
the coaxial retainer ring (3) is sleeve-shaped, the diameter of the outer ring is equal to the inner diameter of the gas pipe (1), and the coaxial retainer ring (3) is fixedly arranged at the front part of the inner cavity of the gas pipe (1) in a penetrating way; the tail end of the gas pipe (1) is connected with a ball valve (2), and the inlet of the ball valve (2) is connected with an oxygen pipe for supplying oxygen; the oxygen lance long lance (4) is penetrated and fixed at the front end of the gas pipe (1), the tail end of the oxygen lance long lance (4) is connected with the coaxial retainer ring (3), and the head end of the oxygen lance long lance (4) is penetrated and arranged outside the gas pipe (1);
screw holes are formed in the pipe wall of the front end of the gas pipe (1), and fastening bolts (6) used for propping up and fixing the oxygen lance long gun (4) are connected in the screw holes, and the head ends of the fastening bolts (6) extend into the gas pipe (1);
two handles (7) are respectively arranged on the middle part and the rear part of the air pipe (1), and the handles (7) are fixed on the pipe wall of the air pipe (1).
2. The steel ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel according to claim 1, wherein the head end of the oxygen lance long lance (4) is also connected with a lance tip, the length of the oxygen lance body is 4000-4500mm, and the length of the oxygen lance tip is 400-500mm.
3. The steel ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel according to claim 2, wherein a sleeve (5) is connected to the rear part of the oxygen lance long gun (4), and the outer diameter of the sleeve (5) is equal to the inner diameter of the gas pipe (1) and the inner diameter is equal to the outer diameter of the oxygen lance long gun (4).
4. A ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel according to claim 3, wherein the length of the sleeve (5) is 200-300mm, the tail end of the sleeve (5) extends into the air pipe (1), and the front end extends out of the air pipe (1).
5. The steel ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel according to claim 4, wherein the outer diameter of the oxygen lance long lance (4) is 40-44mm, and the inner diameter is 34-38mm.
6. The steel ladle ventilation and air brick cup purging and cleaning device for smelting stainless steel according to claim 4, wherein the gas pipe (1), the oxygen lance long lance (4) and the sleeve (5) are made of seamless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320930576.2U CN219900220U (en) | 2023-04-23 | 2023-04-23 | Blowing and cleaning device for steel ladle ventilation and air brick cup for smelting stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320930576.2U CN219900220U (en) | 2023-04-23 | 2023-04-23 | Blowing and cleaning device for steel ladle ventilation and air brick cup for smelting stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219900220U true CN219900220U (en) | 2023-10-27 |
Family
ID=88437760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320930576.2U Active CN219900220U (en) | 2023-04-23 | 2023-04-23 | Blowing and cleaning device for steel ladle ventilation and air brick cup for smelting stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219900220U (en) |
-
2023
- 2023-04-23 CN CN202320930576.2U patent/CN219900220U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |