CN212357288U - Slag receiving and guiding device for rear furnace mouth of converter - Google Patents
Slag receiving and guiding device for rear furnace mouth of converter Download PDFInfo
- Publication number
- CN212357288U CN212357288U CN202020189747.7U CN202020189747U CN212357288U CN 212357288 U CN212357288 U CN 212357288U CN 202020189747 U CN202020189747 U CN 202020189747U CN 212357288 U CN212357288 U CN 212357288U
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- converter
- slag
- guiding gutter
- mouth
- guide groove
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Abstract
The utility model relates to a converter mouth connects sediment guiding device behind converter belongs to the metallurgical industry and smelts supplementary technical field. The slag receiving guide device is arranged between the converter mouth and the converter slag pot and comprises a guide groove and a connecting frame, one end of the guide groove corresponds to the converter mouth, the other end of the guide groove corresponds to the converter slag pot, the connecting frame is fixedly connected with the guide groove, the connecting frame is driven by a driving device to lift to drive the guide groove to lift, and the guide groove is switched between a slag receiving position and a storage position. The cross section of guiding gutter is 180~360 arcs or circular, the shape of guiding gutter is one of straight line, pitch arc and the combination of straight line and pitch arc, the internal surface of guiding gutter is equipped with the refractory material layer. The method and the device not only prevent the slag from entering the steel ladle or overflowing to the non-slag-pot area of the operation area; the loss caused by the fact that the furnace slag overflows and burns the equipment is avoided, and the deslagging time is saved.
Description
Technical Field
The utility model relates to a converter mouth connects sediment guiding device behind converter belongs to the metallurgical industry and smelts supplementary technical field.
Background
In the existing converter smelting link, because the amount of the slag is large and the slag has a certain height, when the converter is inverted to tap steel, the high-temperature slag overflows from a furnace mouth and enters a steel ladle or reaches a position outside the steel ladle and a slag ladle, so that molten steel in the steel ladle is rephosphorized, the oxidability of the steel ladle slag is strong or equipment is burnt out, and therefore, part or most of the slag in the converter needs to be poured out from a hot metal charging side before the converter is tapped at the terminal point. The slag pouring can cause the pouring loss and heat loss of the molten steel in the furnace and waste of 2-5 min.
After the converter slag enters the steel ladle, the purity of molten steel is reduced, the phosphorus content is increased, and even the steel components are unqualified; the temperature of the slag is often over 1600 ℃ when the converter taps steel, and the slag overflows to a converter buggy ladle or other equipment to cause equipment damage and even cause fire, so that serious quality hidden dangers and safety hidden dangers exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a converter mouth meets sediment guiding device behind converter is provided to above-mentioned prior art, avoids or reduces tapping forerunner furnace slag dumping, avoids or reduces the slag and gets into the ladle or spill over the non-slag ladle district in operation district, practices thrift the slag dumping time, reduces interior molten steel pouring loss of stove and calorific loss, avoids because the slag is overflowed to the fire door gets into the ladle to the negative effects of molten steel oxidability, phosphorus content, avoids the slag to spill over the scaling loss equipment and causes the loss.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a converter mouth connects sediment guiding device behind converter, includes the converter mouth, be equipped with between converter mouth and the converter slag is irritated and connect sediment guiding device, it includes guiding gutter and link to connect sediment guiding device, guiding gutter one end corresponds the converter mouth, and the other end corresponds the converter slag and irritates, link and guiding gutter fixed connection are gone up and down by drive arrangement drive link and are driven the guiding gutter and go up and down, realize that the guiding gutter connects the sediment position and store and switch between the position.
The cross section of the diversion trench is in an arc shape or a circular shape of 180-360 degrees, and the diversion trench is in one of a straight line, an arc line and a combination of the straight line and the arc line. The special-shaped slag ladle is designed to be special-shaped, so that the space can be saved, the parts on the original equipment are avoided, and the speed of slag descending is reduced.
The inner surface of the diversion trench is provided with a refractory material layer, so that the service life of the diversion trench is prolonged.
The refractory material layer is a prefabricated refractory material block masonry part or a bulk refractory material pouring part.
The other end of the diversion trench is arranged right above the converter slag tank, and the vertical distance between the diversion trench and the converter slag tank is 0-2 m.
Compared with the prior art, the utility model has the advantages of: a slag receiving and guiding device is arranged between a converter mouth and a converter slag tank, and is driven by a driving device to realize the lifting of a guiding groove, so that the guiding groove is switched between a slag receiving position and a storage position. The diversion trench guides the slag at the converter mouth into the converter slag tank when the slag receiving position is located. Not only avoiding slag pouring of the converter before tapping and slag entering into a steel ladle or overflowing to a non-slag pot area of an operation area; the deslagging time is saved, and the heat loss and the iron and steel loss caused by deslagging are reduced; and the negative effects of molten steel oxidability and phosphorus content caused by the fact that slag overflowing from the furnace mouth enters the steel ladle are avoided, and the loss caused by the fact that slag overflows and burns equipment is avoided.
Drawings
FIG. 1 is a schematic view illustrating a slag receiving and guiding device for a converter mouth of a converter according to the present invention;
in the figure, 1 a converter platform, 2 a converter mouth, 3 a converter slag pot, 4 a slag receiving guide device, 5 a guide groove, 6 a refractory material layer, 7 a connecting frame and 8 a hydraulic oil cylinder.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the slag receiving and guiding device for the converter mouth in the embodiment includes a converter mouth 2, a slag receiving and guiding device 4 is disposed between the converter mouth 2 and a converter slag pot 3, and the slag receiving and guiding device 4 guides slag at the converter mouth 2 into the converter slag pot 3. The slag receiving and guiding device 4 comprises a guiding gutter 5 and a connecting frame 7, one end of the guiding gutter 5 corresponds to the converter mouth 2, the other end of the guiding gutter is arranged right above the converter slag tank 3, and the vertical distance between the other end of the guiding gutter 5 and the converter slag tank 3 is 0-2 m. The connecting frame 7 is fixed at the bottom of the diversion trench 5, the connecting frame 7 is driven by a driving device arranged on the converter platform 1 to realize lifting, the diversion trench 5 is driven to lift, and the diversion trench 5 is switched between a slag receiving position and a storage position.
The cross section of the diversion trench 5 is in an arc shape or a full circle shape of 180-360 degrees, and the diversion trench 5 is in one of a straight line, an arc line and a combination of the straight line and the arc line. The inner surface of the diversion trench 5 is provided with a refractory material layer 6, and the refractory material layer 6 can be connected with the diversion trench 5 through bolts or fastening connection. The refractory material layer 6 is a prefabricated refractory block masonry or a bulk refractory cast piece. The refractory material can be one or a combination of a plurality of materials of corundum, carbon, magnesium carbon, calcium oxide, silicon oxide and mullite, and the service life of the diversion trench 5 is prolonged.
When the converter taps, the connecting frame 7 is driven by the driving device to drive the diversion trench 5 to move to a slag receiving position, and slag in the converter mouth 2 is received and guided into the converter slag ladle 3, so that the aim of preventing the converter tapping slag from overflowing from the converter mouth to enter a steel ladle or burn other facilities is fulfilled. When the converter does not tap steel, the connecting frame 7 is driven by the driving device to drive the diversion trench 5 to move to the storage position, and subsequent operation is not influenced.
Example one
A converter rear mouth slag receiving flow guide device is characterized in that the cross section of a flow guide groove is in an arc shape of 180 degrees, and the shape of the flow guide groove is in an arc shape of 30 degrees; the diversion trench is composed of a prefabricated magnesia refractory block masonry part and a common structural steel plate and is fixedly connected with the prefabricated magnesia refractory block masonry part through bolts, and the hydraulic oil cylinder 8 drives the connecting piece to drive the diversion trench to move to a slag receiving position and a storage position. When the diversion trench is in a slag receiving state, one end of the diversion trench is close to a converter mouth for receiving slag, and the other end of the diversion trench is positioned 1m above the converter slag tank.
Example two
A converter mouth slag receiving flow guide device at the rear of a converter is characterized in that the cross section of a flow guide groove is in an arc shape of 270 degrees, and the shape of the flow guide groove is in an arc shape of 90 degrees; the diversion trench is composed of a prefabricated magnesia refractory block masonry part and a common structural steel plate and is connected with the prefabricated magnesia refractory block masonry part in a fastening mode through a fastener, and the diversion trench is driven to move to a slag receiving position and a storage position through a pneumatic cylinder driving connecting part. When the diversion trench is in a slag receiving state, one end of the diversion trench is close to a converter mouth for receiving slag, and the other end of the diversion trench is positioned 2m above the converter slag tank.
EXAMPLE III
A converter rear mouth slag receiving flow guide device is characterized in that the cross section of a flow guide groove is in a complete circle shape, and the flow guide groove is in a linear shape; the diversion trench is composed of a prefabricated magnesia refractory block masonry part and a common structural steel plate and is fixedly connected with the prefabricated magnesia refractory block masonry part through bolts, and the diversion trench is driven by a pneumatic cylinder driving connecting part to move to a slag receiving position and a storage position. When the diversion trench is in a slag receiving state, one end of the diversion trench is close to a converter mouth for receiving slag, and the other end of the diversion trench is positioned right above the converter slag ladle and is tightly attached to the slag ladle edge.
Example four
A converter rear mouth slag receiving flow guide device is characterized in that the cross section of a flow guide groove is a whole circle, and the flow guide groove is in a combination of a straight line shape and a 30-degree arc shape; the diversion trench is composed of a prefabricated magnesia refractory block masonry part and a common structural steel plate and is fixedly connected with the prefabricated magnesia refractory block masonry part through bolts, and the diversion trench is driven by a hydraulic oil cylinder driving connecting piece to move to a slag receiving position and a storage position. When the diversion trench is in a slag receiving state, one end of the diversion trench is close to a converter mouth for receiving slag, and the other end of the diversion trench is positioned right above the converter slag ladle and is tightly attached to the slag ladle edge.
The converter slag pouring device is arranged at the rear furnace mouth of the converter, and the furnace slag is guided into the converter slag pot from the furnace mouth, so that the slag pouring of the converter before tapping and the furnace slag entering a steel ladle or overflowing to a non-slag pot area of an operation area are avoided; the deslagging time is saved, and the heat loss and the iron and steel loss caused by deslagging are reduced; and the negative effects of molten steel oxidability and phosphorus content caused by the fact that slag overflowing from the furnace mouth enters the steel ladle are avoided, and the loss caused by the fact that slag overflows and burns equipment is avoided.
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 a converter mouth connects sediment guiding device behind converter, includes converter mouth (2), be equipped with between converter mouth (2) and the converter slag ladle (3) and connect sediment guiding device (4), its characterized in that: connect sediment guiding device (4) including guiding gutter (5) and link (7), guiding gutter (5) one end corresponds converter fire door (2), and the other end corresponds the converter sediment and irritates (3), link (7) and guiding gutter (5) fixed connection receive drive arrangement drive link (7) to go up and down to drive guiding gutter (5) and go up and down, realize guiding gutter (5) connect the sediment position and store and switch between the position.
2. The converter mouth slag receiving flow guide device of claim 1, which is characterized in that: the cross section of guiding gutter (5) is 180~360 arc or circular, the shape of guiding gutter (5) is one of straight line, pitch arc and the combination of straight line and pitch arc.
3. The converter mouth slag receiving flow guide device of claim 2, which is characterized in that: and a refractory material layer (6) is arranged on the inner surface of the diversion trench (5).
4. The converter mouth slag receiving flow guide device of claim 3, which is characterized in that: the refractory material layer (6) is a prefabricated refractory material block masonry or a bulk refractory material pouring manufactured piece.
5. The converter mouth slag receiving flow guide device of claim 1, which is characterized in that: the other end of the diversion trench (5) is arranged right above the converter slag tank (3), and the vertical distance between the diversion trench and the converter slag tank is 0-2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020189747.7U CN212357288U (en) | 2020-02-20 | 2020-02-20 | Slag receiving and guiding device for rear furnace mouth of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020189747.7U CN212357288U (en) | 2020-02-20 | 2020-02-20 | Slag receiving and guiding device for rear furnace mouth of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212357288U true CN212357288U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020189747.7U Active CN212357288U (en) | 2020-02-20 | 2020-02-20 | Slag receiving and guiding device for rear furnace mouth of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212357288U (en) |
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2020
- 2020-02-20 CN CN202020189747.7U patent/CN212357288U/en active Active
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