CN111715874A - Filter type continuous casting long nozzle - Google Patents
Filter type continuous casting long nozzle Download PDFInfo
- Publication number
- CN111715874A CN111715874A CN202010561285.1A CN202010561285A CN111715874A CN 111715874 A CN111715874 A CN 111715874A CN 202010561285 A CN202010561285 A CN 202010561285A CN 111715874 A CN111715874 A CN 111715874A
- Authority
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- China
- Prior art keywords
- long nozzle
- continuous casting
- drainage sand
- nozzle body
- filtering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 43
- 239000004576 sand Substances 0.000 claims abstract description 75
- 238000001914 filtration Methods 0.000 claims abstract description 59
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 68
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical compound [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005350 fused silica glass Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 59
- 239000010959 steel Substances 0.000 abstract description 59
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002893 slag Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000013049 sediment Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- -1 MgO-C Chemical compound 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention provides a filtering type continuous casting long nozzle, belonging to the technical field of continuous casting equipment, comprising: the long nozzle body, drainage sand receiving portion and filter portion. The drainage sand receiving part is positioned at the bottom of the long nozzle body and is used for plugging the bottom opening of the long nozzle body; a containing cavity for containing the drainage sand is arranged in the drainage sand containing part; the filtering part is arranged on the side wall of the long nozzle body and is positioned above the drainage sand receiving part. According to the filtering type continuous casting long nozzle, the drainage sand in the ladle nozzle can directly enter the containing cavity for containing the drainage sand through the inner cavity of the long nozzle body, and after the drainage sand completely enters the containing cavity, molten steel enters the tundish through the filtering part, so that the molten steel and the drainage sand are quickly separated, the filtering efficiency is improved, and the drainage sand is prevented from entering the tundish. The long mouth of a river of filtration formula continuous casting's of this application simple structure, greatly reduced manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of continuous casting equipment, and particularly relates to a filtering type continuous casting long nozzle.
Background
At present, molten steel in a steel ladle is poured into a tundish through a long nozzle, and the molten steel is mainly used for protecting the molten steel poured into the tundish from the steel ladle and preventing the molten steel from directly contacting with air to generate secondary oxidation. In the process of continuous casting of molten steel, in order to increase the casting rate of a ladle, drainage sand is added into a ladle nozzle and is used for drainage when the ladle is cast. When the ladle is poured, the drainage sand in the ladle nozzle inevitably enters the molten steel of the tundish through the long nozzle, so that the molten steel is polluted, and the crystallinity of the molten steel is seriously influenced.
Disclosure of Invention
The invention aims to provide a filter type continuous casting long nozzle, and aims to solve the problems that drainage sand pollutes molten steel in a tundish and affects the crystallinity of the molten steel.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a filtering type continuous casting long nozzle comprising:
a long nozzle body;
the drainage sand receiving part is positioned at the bottom of the long nozzle body and used for plugging the bottom opening of the long nozzle body; a containing cavity for containing the drainage sand is arranged in the drainage sand containing part; and
and the filtering part is arranged on the side wall of the long nozzle body and is positioned above the drainage sand receiving part.
As another embodiment of the present application, the cross-sectional dimension of the receiving cavity in the horizontal direction gradually increases from top to bottom.
As another embodiment of this application, install the filter screen on the filter house, be equipped with first filtration hole on the filter screen.
As another embodiment of the application, the bottom and/or the side wall of the accommodating cavity is/are provided with second filtering holes.
As another embodiment of this application, be equipped with air intake passage on the long mouth of a river body, air intake passage with the inner chamber intercommunication of long mouth of a river body.
As another embodiment of the present application, the number of the air inlet passages is plural, and the plural air inlet passages are uniformly arranged along the circumferential direction of the long nozzle body.
As another embodiment of this application, be equipped with on the inside wall of long mouth of a river body with the exhaust nozzle of inlet channel one-to-one correspondence intercommunication.
As another embodiment of this application, shielding piece is installed to the inboard of drainage sand accepting part, the center of shielding piece is equipped with the through-hole.
As another embodiment of this application, drainage sand accepting part with long mouth of a river body can dismantle the connection.
As another embodiment of the present application, the long nozzle body is made of fused quartz or aluminum carbon.
The filter type continuous casting long nozzle provided by the invention has the beneficial effects that: compared with the prior art, the filtering type continuous casting long nozzle is characterized in that the bottom and the side wall of the long nozzle body are respectively provided with the drainage sand receiving part and the filtering part. When the ladle was opened and is watered, the intraoral drainage sand of ladle water can directly enter into the intracavity that holds that is used for accepting the drainage sand through the inner chamber of long mouth of a river body, treat that the drainage sand enters into completely and holds the chamber after, the molten steel enters into the pouring basket in through the filter house to realized the quickly separating of molten steel and drainage sand, improved filtration efficiency, avoided the drainage sand to enter into the pouring basket in. Because the filter part is located the top of drainage sand accepting part, the in-process that the molten steel enters into the centre package from long mouth of a river body, and the drainage sand can not lead to the fact the hindrance to the molten steel, and the drainage sand can not influence the normal work of filter part promptly, under the prerequisite of guaranteeing molten steel flow rate, has promoted the filter effect. The filtering type continuous casting long nozzle is simple in structure, and production cost is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a filter type continuous casting long nozzle provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a filter type continuous casting long nozzle provided by a second embodiment of the invention;
fig. 3 is a sectional view of the structure taken along line a-a in fig. 2.
In the figure: 1. a long nozzle body; 101. an air intake passage; 102. an exhaust nozzle; 2. a drainage sand receiving part; 201. an accommodating chamber; 202. a second filtering hole; 203. a shield; 3. a filtering part; 301. a filter screen; 302. a first filtering hole; 4. clamping a hoop; 401. a drive block; 402. a drive ramp; 5. a ladle down nozzle; 6. and (4) pouring a middle bag.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a filtering type continuous casting long nozzle according to the present invention will now be described. The filtering type continuous casting long nozzle comprises: the long nozzle comprises a long nozzle body 1, a drainage sand receiving part 2 and a filtering part 3. The drainage sand receiving part 2 is positioned at the bottom of the long nozzle body 1 and is used for plugging the bottom opening of the long nozzle body 1; a containing cavity 201 for containing the drainage sand is arranged in the drainage sand receiving part 2; the filtering part 3 is arranged on the side wall of the long nozzle body 1 and is positioned above the drainage sand receiving part 2.
Compared with the prior art, the filtering type continuous casting long nozzle provided by the invention is characterized in that the bottom and the side wall of the long nozzle body 1 are respectively provided with the drainage sand receiving part 2 and the filtering part 3. When the ladle was opened and is watered, the intraoral drainage sand of ladle water can directly enter into the chamber 201 that holds that is used for accepting the drainage sand through the inner chamber of long mouth of a river body 1, treat that the drainage sand enters into completely and holds the chamber 201 after, the molten steel enters into in the middle package 6 through filter house 3 to realized the flash separation of molten steel with the drainage sand, improved filtration efficiency, avoided the drainage sand to enter into in the middle package. Because filter house 3 is located the top of drainage sand accepting part 2, the in-process that the molten steel entered into tundish 6 from long mouth of a river body 1, and the drainage sand can not cause the hindrance to the molten steel, and the drainage sand can not influence filter house 3's normal work promptly, under the prerequisite of guaranteeing molten steel flow rate, has promoted the filter effect. The filtering type continuous casting long nozzle is simple in structure, and production cost is greatly reduced.
In this embodiment, the top of the long nozzle body 1 is fixedly connected with the ladle drain 5. Drainage sand receiving portion 2 and filter portion 3 all are located middle package 6. The filtering part 3 not only can filter the drainage sand, but also can filter other impurities in the molten steel. In order to reduce the manufacturing cost, a filtering hole is directly cast or machined on the side wall (the filtering part 3) of the long nozzle body 1, so that the filtering effect is realized.
Referring to fig. 1 and 2, as an embodiment of the filtering type continuous casting long nozzle provided by the present invention, a sectional size of the accommodating chamber 201 in a horizontal direction gradually increases from top to bottom. In this embodiment, the long nozzle body 1 is a straight cylinder. Because the cross sectional dimension that holds chamber 201 along the horizontal direction increases gradually from top to bottom to increased the inner space who holds chamber 201, promoted the holding capacity who holds chamber 201 to the drainage sand. Drainage sand receiving portion 2 and long mouth of a river body 1 can integrated into one piece, and integrated into one piece structural strength is high, long service life. After molten steel in the ladle is injected into the tundish 6 completely, the filtering type continuous casting long nozzle is detached from the ladle lower nozzle 5, then the filtering type continuous casting long nozzle is overturned by 180 degrees, and drainage sand is poured out and collected, so that the drainage sand is recycled.
Referring to fig. 2, as a specific embodiment of the filtering type continuous casting long nozzle provided by the present invention, a filter screen 301 is installed on the filter portion 3, and the filter screen 301 is provided with a first filter hole 302. In this embodiment, the side wall of the long nozzle body 1 is correspondingly provided with a plurality of mounting grooves for mounting the filter screen 301. The filter screen 301 is fixed on the long nozzle body 1 by a fastener. The number of the filter screens 301 is a plurality of, and the filter screens are uniformly arranged along the circumferential direction of the long nozzle body 1, so that the area of a molten steel outlet is increased. Because the temperature of the molten steel is high, the ceramic filter screen 301 is adapted to a high-temperature environment. The ceramic filter 301 may be made of Al2O3, ZrO2, CaO, MgO-C, mullite or a combination thereof. According to different temperature requirements, the contents of different components in the water are adjusted. After working for a period of time, the first filtering holes 302 are easily blocked, and the filtering net 301 and the long nozzle body 1 are of a split structure, so that the filtering net 301 can be detached from the long nozzle body 1 to be cleaned, and the cleaning efficiency and the cleaning effect are greatly improved; the requirements of different production environments can be met by replacing the filter screens 301 with different specifications.
At the later stage of every ladle pouring, the ladle sediment in the ladle can be along with the molten steel be drawn into in the middle package 6 and pollute the molten steel in the middle package 6, for reducing the pollution of ladle sediment to the molten steel, the technical scheme who adopts at present is: and a ladle slag discharging detector is added in the ladle, and the ladle water outlet 5 is closed after the slag discharging detector detects the slag discharging, so that the pouring is stopped. Although the method can effectively reduce the slag discharge amount of the ladle slag, the residual molten steel poured in the ladle is more, and the metal yield is greatly reduced. The utility model provides a filter screen 301 can filter drainage sand and ladle sediment simultaneously, and the ladle sediment enters into together with the drainage sand and holds the chamber 201 in, because the material of ladle sediment and drainage sand is different, can separate two kinds of materials through magnetic force.
Referring to fig. 2, as an embodiment of the filtering type continuous casting long nozzle provided by the present invention, a second filtering hole 202 is formed on the bottom and/or the sidewall of the accommodating chamber 201. In this embodiment, the second filtering hole 202 is directly formed on the accommodating cavity 201. Because the second filtering holes 202 are formed in the bottom and/or the side wall of the accommodating cavity 201, part of the molten steel can be directly injected into the tundish 6 from the first filtering holes 302, and the other part of the molten steel can enter the accommodating cavity 201 and then is injected into the tundish 6 through the second filtering holes 202, so that the injection rate of the molten steel is increased, and the working efficiency is improved. The size of the second filtering hole 202 is smaller than or equal to that of the first filtering hole 302, so that the drainage sand in the accommodating cavity 201 is prevented from penetrating through the second filtering hole 202 into the tundish 6 to pollute the molten steel. After the pouring process is completed, the filtering type continuous casting long nozzle needs to be taken out from the tundish 6, at the moment, a part of molten steel can be left in the containing cavity 201, and the molten steel in the containing cavity 201 can flow out from the second filtering hole 202 due to the fact that the second filtering hole 202 is formed in the bottom and/or the side wall of the containing cavity 201, so that waste of the molten steel is avoided, solidification of the molten steel in the containing cavity 201 is avoided, and the drainage sand and the molten steel are not taken out smoothly.
As a specific embodiment of the filtering continuous casting long nozzle provided by the present invention, please refer to fig. 3, an air inlet channel 101 is provided on the long nozzle body 1, and the air inlet channel 101 is communicated with the inner cavity of the long nozzle body 1. In this embodiment, an inert gas, such as argon, is introduced into the gas inlet passage 101. Because inclusion exists in the molten steel, the introduced inert gas can make the inclusion collide, grow up and float upwards to enter the steel slag, thereby achieving the purpose of removing the inclusion in the molten steel. Molten steel can permeate a certain amount of air in the flow process in the long nozzle body 1, the molten steel can be in oxidation reaction with the air contact, the quality of the molten steel is reduced, the introduced inert gas has a certain stirring effect on the molten steel, and the air in the molten steel can be discharged.
Referring to fig. 3, the number of the air inlet channels 101 is multiple, and the multiple air inlet channels 101 are uniformly arranged along the circumferential direction of the long nozzle body 1. In this embodiment, the air inlet channels 101 uniformly arranged along the circumferential direction of the long nozzle body 1 can fully stir the molten steel in the long nozzle body 1, so as to discharge the air more thoroughly. The air inlet channel 101 is arranged between two adjacent filter screens 301, and under the synchronous action of air flow and water flow, dirt attached to the filter screens 301 is cleaned, so that the passing rate of molten steel is guaranteed, and the maintenance or replacement period of the filter screens 301 is prolonged. The number of the air inlet passages 101 between two adjacent filter screens 301 is plural, and the air inlet passages are uniformly arranged in the vertical direction.
Referring to fig. 2 and 3, as an embodiment of the filtering continuous casting long nozzle provided by the present invention, an exhaust nozzle 102 is disposed on an inner sidewall of the long nozzle body 1 and is in one-to-one correspondence with the air inlet channel 101. In this embodiment, since the inner space of the long nozzle is narrow, it is inconvenient to install the exhaust nozzle 102, so that the exhaust nozzle 102 and the long nozzle body 1 are integrally cast, which not only improves the structural strength of the exhaust nozzle 102, but also reduces the installation difficulty of the exhaust nozzle 102. The opening direction of the exhaust nozzle 102 is arranged along the circumferential direction of the long nozzle body 1, and molten steel in the area near the exhaust nozzle 102 can form vortex, so that the flowing speed of the molten steel is increased, the injection rate of the molten steel is increased, and meanwhile, the cleaning efficiency of the filter screen 301 is improved.
Referring to fig. 2, as an embodiment of the filtering type continuous casting long nozzle provided by the present invention, a shielding member 203 is installed inside the drainage sand receiving portion 2, and a through hole is formed in the center of the shielding member 203. In this embodiment, the shield would be located above the receiving cavity 201. The top of shielding piece 203 is equipped with mounting flange, and the inside correspondence of drainage sand accepting part 2 is equipped with the spacing groove that is used for installing shielding piece 203. The shielding piece 203 is conical, and one side close to the through hole inclines downwards, so that impurities such as drainage sand and steel slag can conveniently enter the accommodating cavity 201 through the through hole in the center of the shielding piece 203 along the side wall of the shielding piece 203. In addition, shielding piece 203 can be with the impurity separation in holding chamber 201, and the molten steel of avoiding flowing in the long nozzle body 1 stirs impurity production, makes the sediment that carries on that impurity can be better to promote the molten steel quality of pouring into in the middle of 6. The limiting groove is matched with the mounting flange for limiting the displacement of the shielding piece 203 along the horizontal direction. The shielding piece 203 is placed in the limiting groove by means of self gravity, after pouring is completed, the drainage sand receiving part 2 is turned for 180 degrees, the shielding piece 203 can automatically slide out of the drainage sand receiving part 2, and then impurities (drainage sand, steel slag and the like) in the containing cavity 201 can be poured out.
Referring to fig. 2 and 3, a filter type continuous casting long nozzle according to an embodiment of the present invention is provided, in which a sand-guiding receiving portion 2 is detachably connected to a long nozzle body 1. In this embodiment, the filtering continuous casting long nozzle further comprises a clamp 4. The number of clips 4 is at least two. Two adjacent hoops 4 are connected through fastening. The outline of the drainage sand receiving part 2 and the outline of the long nozzle body 1 are both circular. A plurality of clamps 4 enclose along the horizontal direction and establish the periphery at drainage sand accepting part 2 and long mouth of a river body 1 for fixed drainage sand accepting part 2 and long mouth of a river body 1. The upper end and the lower end of the clamping hoop 4 are provided with driving blocks 401, the inner sides of the two driving blocks 401 are provided with driving inclined planes 402, and driven inclined planes which are in sliding fit with the driving inclined planes 402 are correspondingly arranged on the drainage sand receiving part 2 and the long nozzle body 1. The clamp 4 is close to each other with the help of the fastener, so that the driving inclined plane 402 slides on the driven inclined plane, and finally the drainage sand receiving part 2 and the long nozzle body 1 are driven to be close to each other and compressed, so that the fixed connection of the drainage sand receiving part 2 and the long nozzle body 1 is realized. Because drainage sand accepting part 2 can dismantle with long mouth of a river body 1 and be connected, so reduced the maintenance replacement cost of convection current sand accepting part, simultaneously more conveniently take out drainage sand from holding chamber 201.
As a specific embodiment of the filtering continuous casting long nozzle provided by the present invention, the long nozzle body 1 is a fused quartz product or an aluminum carbon product.
It needs to be specially explained that, because the filtering type continuous casting long nozzle is in a high-temperature environment for a long time, the related parts in the nozzle are made of high-temperature resistant materials and do not react with molten steel chemically.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A filter type continuous casting long nozzle, comprising:
a long nozzle body;
the drainage sand receiving part is positioned at the bottom of the long nozzle body and used for plugging the bottom opening of the long nozzle body; a containing cavity for containing the drainage sand is arranged in the drainage sand containing part; and
and the filtering part is arranged on the side wall of the long nozzle body and is positioned above the drainage sand receiving part.
2. The filtered continuous casting long nozzle as claimed in claim 1, wherein the sectional size of the receiving chamber in the horizontal direction is gradually increased from top to bottom.
3. The filter type continuous casting long nozzle according to claim 1, wherein a filter screen is installed on the filter portion, and the filter screen is provided with first filter holes.
4. The filtering type continuous casting long nozzle as claimed in claim 3, wherein the bottom and/or the side wall of the accommodating chamber is provided with the second filtering holes.
5. The filter type continuous casting long nozzle as claimed in claim 1, wherein the long nozzle body is provided with an air inlet channel, and the air inlet channel is communicated with the inner cavity of the long nozzle body.
6. The filter type continuous casting long nozzle according to claim 5, wherein the number of the air inlet passages is plural, and the plural air inlet passages are uniformly arranged in the circumferential direction of the long nozzle body.
7. The filter type continuous casting long nozzle as claimed in claim 6, wherein exhaust nozzles communicated with the air inlet channels in a one-to-one correspondence are provided on an inner side wall of the long nozzle body.
8. The filtering continuous casting long nozzle according to claim 1, wherein a shielding piece is installed inside the drainage sand receiving part, and a through hole is formed in the center of the shielding piece.
9. The filtered continuous casting long nozzle according to claim 1, wherein the drainage sand receiving part is detachably connected with the long nozzle body.
10. The filtered continuous casting long nozzle as claimed in claim 1, wherein the long nozzle body is a fused silica piece or an aluminum carbon piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561285.1A CN111715874A (en) | 2020-06-18 | 2020-06-18 | Filter type continuous casting long nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561285.1A CN111715874A (en) | 2020-06-18 | 2020-06-18 | Filter type continuous casting long nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111715874A true CN111715874A (en) | 2020-09-29 |
Family
ID=72567432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010561285.1A Pending CN111715874A (en) | 2020-06-18 | 2020-06-18 | Filter type continuous casting long nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111715874A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718329A (en) * | 2005-07-25 | 2006-01-11 | 刘国权 | Purification method of molten steel and filtration type drain |
| KR100669512B1 (en) * | 2005-08-22 | 2007-01-16 | 주식회사 포스코 | Prevent device from mixing slag and continuous casting equipment |
| CN102864283A (en) * | 2012-09-19 | 2013-01-09 | 中冶南方工程技术有限公司 | Argon-blowing long nozzle for clean steel |
| CN202845761U (en) * | 2012-09-17 | 2013-04-03 | 北京科技大学 | Novel tundish for highly purified liquid steel |
| CN212704343U (en) * | 2020-06-18 | 2021-03-16 | 河北工业职业技术学院 | Filter type continuous casting long nozzle |
-
2020
- 2020-06-18 CN CN202010561285.1A patent/CN111715874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718329A (en) * | 2005-07-25 | 2006-01-11 | 刘国权 | Purification method of molten steel and filtration type drain |
| KR100669512B1 (en) * | 2005-08-22 | 2007-01-16 | 주식회사 포스코 | Prevent device from mixing slag and continuous casting equipment |
| CN202845761U (en) * | 2012-09-17 | 2013-04-03 | 北京科技大学 | Novel tundish for highly purified liquid steel |
| CN102864283A (en) * | 2012-09-19 | 2013-01-09 | 中冶南方工程技术有限公司 | Argon-blowing long nozzle for clean steel |
| CN212704343U (en) * | 2020-06-18 | 2021-03-16 | 河北工业职业技术学院 | Filter type continuous casting long nozzle |
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