CN218109344U - Continuous casting tundish breathable sliding plate - Google Patents
Continuous casting tundish breathable sliding plate Download PDFInfo
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- CN218109344U CN218109344U CN202220382555.7U CN202220382555U CN218109344U CN 218109344 U CN218109344 U CN 218109344U CN 202220382555 U CN202220382555 U CN 202220382555U CN 218109344 U CN218109344 U CN 218109344U
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Abstract
The utility model relates to a ventilative slide of package in middle of continuous casting, include the ventilative passageway and the air chamber that form after melting by the heating of polypropylene fibre silk, still include slide iron-clad, the aluminium carbon brick body, the high aluminium matter pouring body, the middle part of the aluminium carbon brick body and the high aluminium matter pouring body is equipped with the steel hole of flowing, ventilative passageway communicates with each other with the steel hole of flowing of ventilative slide, and its junction is the circular arc section. The air outlet ends of the air permeable channels are distributed along the circumference of the steel hole, the air inlet ends of the air permeable channels are connected with the air chamber, the air chamber is communicated with a first metal air permeable pipe preset in the high-aluminum casting body, the upper surface of the high-aluminum casting body is provided with an annular air guide groove, the annular air guide groove is communicated with a second metal air permeable pipe preset in the high-aluminum casting body, and the exposed ends of the first metal air permeable pipe and the second metal air permeable pipe are fixedly connected with the iron shell of the sliding plate. The utility model discloses it is equipped with annular air guide groove to flow steel hole top, flows the downthehole portion of steel and is equipped with ventilative passageway. The ventilation quantity is accurate and reliable.
Description
Technical Field
The utility model relates to a middle package, in particular to ventilative slide of package in middle of continuous casting.
Background
The continuous casting tundish breathable sliding plate is a key component for controlling the height of molten steel in a crystallizer by controlling the flow rate of the molten steel, is combined with a tundish breathable upper nozzle, and removes non-metallic inclusions in the molten steel and prevents the upper nozzle and an immersion nozzle from nodulation by blowing argon. With the continuous development of steel-making technology, various high-grade high-added-value-component-complex variety steels gradually occupy the mainstream, and the continuous casting tundish breathable upper nozzle is more prone to flocculation in the using process, so that blockage is caused, and the molten steel quality and the steel-making rhythm are influenced. The tundish ventilating slide plate stirs molten steel retained in a casting hole by blowing argon gas, prevents floccules of a ventilating upper nozzle of the tundish and also improves the capability of removing non-metallic inclusions in the molten steel.
The continuous casting tundish breathable sliding plate breathable belt generally adopts a breathable ring form, and is generally divided into a dispersion type breathable ring and a straight through hole type breathable ring, and the breathable amount of the dispersion type breathable ring is not easy to control, has poor anti-erosion capability and is not scour-resistant. The straight hole type ventilation ring has the advantages of easy control of ventilation quantity and strong erosion resistance, but the ventilation straight hole channel is easy to block and seep steel when the argon flow is low. Meanwhile, the ventilation ring is produced by bonding fire clay in the sliding plate, potential safety hazards exist at fire clay seam positions in the steel pouring process, and steel leakage can be caused.
Disclosure of Invention
The utility model aims to solve the technical problem that a ventilative slide of package in middle of the continuous casting is provided, carried out reasonable design to the ventilative of the ventilative slide of package in middle, avoided middle package casting in-process molten steel and inclusion to the jam and the infiltration of ventilative slide.
In order to achieve the above object, the utility model adopts the following technical scheme:
the continuous casting tundish air-permeable sliding plate comprises an air-permeable channel and an air chamber which are formed by heating and melting polypropylene fibers, wherein the air-permeable channel is communicated with a steel flowing hole of the air-permeable sliding plate, and the joint of the air-permeable channel and the steel flowing hole is an arc section.
The continuous casting tundish ventilating slide plate also comprises a slide plate iron shell, an aluminum-carbon brick body and a high-aluminum casting body, wherein steel flowing holes are formed in the middle parts of the aluminum-carbon brick body and the high-aluminum casting body, the air outlet ends of the ventilating channels are distributed along the circumference of the steel flowing holes, the air inlet ends of the ventilating channels are connected with an air chamber, the air chamber is communicated with a metal ventilating pipe I preset in the high-aluminum casting body, an annular air guide groove is formed in the upper surface of the high-aluminum casting body and communicated with a metal ventilating pipe II preset in the high-aluminum casting body, and the exposed ends of the metal ventilating pipe I and the metal ventilating pipe II are fixedly connected with the slide plate iron shell.
The arc radius of the arc section is 5-10mm.
The aluminum-carbon brick body is a prefabricated body, the aluminum-carbon brick body is bonded with the sliding plate iron shell fire clay, and the high-aluminum casting body and the aluminum-carbon brick body are cast into a whole.
The first metal vent pipe and the second metal vent pipe are arranged in the prefabricated groove of the aluminum-carbon brick body.
The first metal vent pipe and the second metal vent pipe are stainless steel pipes.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses it is equipped with annular air guide groove to flow steel hole top, flows the downthehole portion of steel and is equipped with ventilative passageway. The ventilation quantity is accurate and reliable, and the requirements of the ventilation quantity of the continuous casting tundish ventilation slide plate of different steel mills are met. The annular air guide groove is obtained by directly pouring high-alumina refractory castable instead of the traditional design of an air guide ring.
2. The arc section is arranged at the air outlet end of the steel flow hole on the ventilation channel, so that the phenomenon that the flow speed of gas with suddenly increased air pressure rises after ventilation is avoided, and the blockage and the permeation of molten steel and impurities thereof to the ventilation channel in the continuous casting steel casting process are prevented.
3. The air chamber is realized by melting the polypropylene fiber after heating, air chambers made of other materials are not needed to be added independently, and the shape of the air chamber can be changed randomly according to the use conditions while the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 isbase:Sub>A schematic view of A-A in FIG. 1.
FIG. 3 is a schematic view of B-B in FIG. 1.
In the figure: the device comprises a sliding plate iron shell 1, an aluminum-carbon brick body 2, a high-aluminum casting body 3, a steel flowing hole 4, a ventilation channel 5, an air chamber 6, a first metal ventilation pipe 7, an annular air guide groove 8, a second metal ventilation pipe 9, a prefabricated groove 10, fire clay 11, an arc section 12, a casting core mold 13, a casting mold cover 14, an insertion hole 15, polypropylene fiber yarns 16 and a filament group 17.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings:
referring to fig. 1-3, the continuous casting tundish breathable slide plate comprises a slide plate iron shell 1, an aluminum-carbon brick body 2 and a high-aluminum casting body 3, wherein the aluminum-carbon brick body 2 is a prefabricated body, the aluminum-carbon brick body 2 is bonded with the slide plate iron shell 1 through fire clay 11, and the high-aluminum casting body 3 and the aluminum-carbon brick body 2 are cast into a whole. The groove 10 is prefabricated on the upper surface of the aluminum-carbon brick body 2.
The middle parts of the aluminum-carbon brick body 2 and the high-aluminum casting body 3 are provided with a steel flowing hole 4, a plurality of ventilation channels 5 are arranged around the steel flowing hole 4, the air outlet ends of the ventilation channels 5 are distributed along the circumference of the inner surface of the steel flowing hole, and the joint of the ventilation channels 5 and the steel flowing hole 4 is an arc section 13. The arc radius of the arc section 13 is 5-10mm. The air inlet end of the air-permeable passage 5 is connected with the air chamber 6, and the air-permeable passage 5 and the air chamber 6 are formed by heating and melting polypropylene fiber filaments.
The air chamber 6 is communicated with a first metal vent pipe 7 preset in the high-aluminum casting body 3, the upper surface of the high-aluminum casting body 3 is provided with an annular air guide groove 8, the annular air guide groove 8 is communicated with a second metal vent pipe 9 preset in the high-aluminum casting body 3, and exposed ends of the first metal vent pipe 7 and the second metal vent pipe 9 are fixedly connected with the sliding plate iron shell 1. The first metal vent pipe 7 and the second metal vent pipe 9 are arranged in the prefabricated groove 10 of the aluminum-carbon brick body 2. The first metal vent pipe 7 and the second metal vent pipe 8 are stainless steel pipes.
The working principle of the continuous casting tundish breathable sliding plate is as follows: when the device is used, argon is introduced into the metal vent pipe I7 and is communicated to the gas chamber 6, gas formed in the gas chamber 6 is gathered and then flows through the vent passage 5 to be blown out of the runner hole 4, the capability of removing non-metal inclusions in molten steel in the pouring process of the tundish is improved, the occurrence of flocculation of the permeable upper nozzle of the tundish is reduced, and the blockage and the permeation of the molten steel and the inclusions thereof to the annular gas guide groove 8 are avoided.
Examples
The utility model provides a ventilative slide of package in middle of continuous casting, includes slide iron-clad 1, the aluminium carbon brick body 2, the high aluminium matter pouring body 3, and the aluminium carbon brick body 2 is the prefabrication body, and the aluminium carbon brick body 2 leads to fire mud 11 with slide iron-clad 1 and bonds, and the high aluminium matter pouring body 3 becomes an organic whole with the pouring of aluminium carbon brick body 2. The groove 10 is prefabricated on the upper surface of the aluminum-carbon brick body 2.
The middle parts of the aluminum-carbon brick body 2 and the high-aluminum casting body 3 are provided with steel flowing holes 4, 10 ventilation channels 5 are arranged around the steel flowing holes 4, the air outlet ends of the ventilation channels 5 are distributed along the circumference of the inner surface of the steel flowing holes, and the joint of the ventilation channels 5 and the steel flowing holes 4 is an arc section 13. The arc radius of the arc segment 13 is 7mm. The air inlet end of the air-permeable passage 5 is connected with the air chamber 6, and the air-permeable passage 5 and the air chamber 6 are formed by heating and melting polypropylene fiber yarns. The diameter of the ventilation channel 5 is 1.2mm. The air outlets of the air-permeable channels 5 on the surface of the steel flowing hole 4 are evenly distributed on the same horizontal plane.
The air chamber 6 is communicated with a first metal vent pipe 7 preset in the high-aluminum casting body 3, the upper surface of the high-aluminum casting body 3 is provided with an annular air guide groove 8, the annular air guide groove 8 is communicated with a second metal vent pipe 9 preset in the high-aluminum casting body 3, and the first metal vent pipe 7 and the second metal vent pipe 8 are stainless steel pipes.
The exposed ends of the first metal vent pipe 7 and the second metal vent pipe 9 are fixedly connected with the iron shell 1 of the sliding plate. The first metal vent pipe 7 and the second metal vent pipe 9 are arranged in the prefabricated groove 10 of the aluminum-carbon brick body 2.
Above utility model, to the ordinary technical personnel in this technical field, can also be right without deviating from the principle of the utility model, these improve and decorate and also fall into the protection scope of the utility model claims. The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The continuous casting tundish breathable sliding plate is characterized by comprising a breathable channel and an air chamber, wherein the breathable channel and the air chamber are formed by heating and melting polypropylene fiber yarns, the breathable channel is communicated with a steel flowing hole of the breathable sliding plate, and the joint of the breathable channel and the steel flowing hole is an arc section.
2. The continuous casting tundish air-permeable sliding plate according to claim 1, further comprising an iron shell of the sliding plate, an aluminum-carbon brick body and a high-aluminum casting body, wherein steel flowing holes are formed in the middle of the aluminum-carbon brick body and the high-aluminum casting body, the air outlet ends of the air-permeable channels are distributed along the circumference of the steel flowing holes, the air inlet ends of the air-permeable channels are connected with the air chamber, the air chamber is communicated with a first metal air-permeable pipe preset in the high-aluminum casting body, the upper surface of the high-aluminum casting body is provided with an annular air guide groove, the annular air guide groove is communicated with a second metal air-permeable pipe preset in the high-aluminum casting body, and the exposed ends of the first metal air-permeable pipe and the second metal air-permeable pipe are fixedly connected with the iron shell of the sliding plate.
3. The air-permeable sliding plate for a continuous casting tundish according to claim 1, wherein the arc segment has an arc radius of 5-10mm.
4. The continuous casting tundish breathable sliding plate according to claim 2, wherein the aluminum-carbon brick body is a prefabricated body, the aluminum-carbon brick body is bonded with the iron shell of the sliding plate through fire clay, and the high-alumina casting body and the aluminum-carbon brick body are cast into a whole.
5. The continuous casting tundish air-permeable slide plate according to claim 2, wherein the first metal air-permeable tube and the second metal air-permeable tube are arranged in a prefabricated groove of the aluminum-carbon brick body.
6. The continuous casting tundish air-permeable slide plate according to claim 2, wherein the first metal air-permeable tube and the second metal air-permeable tube are stainless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220382555.7U CN218109344U (en) | 2022-02-24 | 2022-02-24 | Continuous casting tundish breathable sliding plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220382555.7U CN218109344U (en) | 2022-02-24 | 2022-02-24 | Continuous casting tundish breathable sliding plate |
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| CN218109344U true CN218109344U (en) | 2022-12-23 |
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| CN202220382555.7U Active CN218109344U (en) | 2022-02-24 | 2022-02-24 | Continuous casting tundish breathable sliding plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700487A (en) * | 2022-02-24 | 2022-07-05 | 鞍山浦项特种耐火材料有限公司 | Manufacturing method of continuous casting tundish breathable sliding plate and breathable sliding plate |
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2022
- 2022-02-24 CN CN202220382555.7U patent/CN218109344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700487A (en) * | 2022-02-24 | 2022-07-05 | 鞍山浦项特种耐火材料有限公司 | Manufacturing method of continuous casting tundish breathable sliding plate and breathable sliding plate |
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