CN107052324B - Connecting structure from tundish to crystallizer - Google Patents
Connecting structure from tundish to crystallizer Download PDFInfo
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- CN107052324B CN107052324B CN201710277774.2A CN201710277774A CN107052324B CN 107052324 B CN107052324 B CN 107052324B CN 201710277774 A CN201710277774 A CN 201710277774A CN 107052324 B CN107052324 B CN 107052324B
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- 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
- B22D41/502—Connection arrangements; Sealing means therefor
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- 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
- B22D41/58—Pouring-nozzles with gas injecting means
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- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the field of steel making, and particularly relates to a connecting structure from a tundish to a crystallizer. The anti-oxidation air charging device comprises an upper water pipe with an upper water inlet, a lower water pipe with a lower water inlet, a crystallizer and an anti-oxidation air charging ring, wherein the upper water pipe is connected to the bottom of a tundish, the lower water pipe is arranged on the crystallizer, the upper pipe opening is sleeved on the outer side of the bottom of the upper water pipe, the anti-oxidation air charging ring is arranged at the top of a circle of joint formed by the upper water pipe and the lower water pipe in a sleeved mode and is provided with a hollow pipe cavity in a winding mode, a plurality of air outlet holes are formed in the inner side of the anti-oxidation air charging ring, and an air feeding pipe is connected to the outer side of the anti-oxidation air charging ring. The outer side of the anti-oxidation inflation ring is connected with a hard hanging pipe with a pipe cavity communicated with the hollow pipe cavity of the anti-oxidation inflation ring, the air supply pipe is connected to the outer end, far away from the anti-oxidation inflation ring, of the hard hanging pipe, and air is supplied to the anti-oxidation inflation ring through the pipe cavity of the air supply pipe. Argon is supplied to the periphery of the joint through the anti-oxidation gas-filled ring, so that gas seal at the joint position is formed to isolate oxygen, and molten steel is prevented from being oxidized in the flowing and conveying process.
Description
Technical Field
The invention belongs to the field of steel making, and particularly relates to a connecting structure from a tundish to a crystallizer.
Background
When the tundish sends molten steel to the crystallizer to crystallize in the steelmaking process, the sealing between the butted upper water gap and lower water gap is poor, and oxygen enters from the butt joint seam during pouring, so that secondary oxidation is caused on part of the molten steel, the purity of the steel is reduced, the content of impurities is increased, and the quality of a product is influenced. Particularly, when titanium-containing stainless steel is produced, serious nozzle blockage can be caused, and even the nozzle is blocked to interrupt pouring, so that molten steel waste is caused, and the yield of steelmaking is reduced. The existing connecting structure has the disadvantages of complicated parts, high precision, high cost, inconvenience in installation, poor safety and poor controllability. The existing novel connecting structure is mainly used on the crystallizer and is not arranged at the connecting position of the upper water gap and the lower water gap, so that the original old upper water gap and the lower water gap cannot ensure air seal, and most parts for connecting the crystallizer need to be replaced when the air seal needs to be replaced, and the cost is high.
Disclosure of Invention
The invention aims to provide a connecting structure of a tundish to a crystallizer for solving the problems.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a connecting structure of middle package to crystallizer, including connect in the middle package bottom have the upper hose of mouth of a river, locate on the crystallizer and the upper end mouth of a pipe cup joint in the downcomer that has the mouth of a river down of upper hose bottom outside, still including corresponding the upper hose with the downcomer cup joints the round seam top of forming around establishing and have the anti-oxidation gas filled ring of hollow tube chamber, anti-oxidation gas filled ring inboard is equipped with a plurality of ventholes, and the outside even has the blast pipe.
Argon is supplied to the periphery of the joint through the anti-oxidation gas-filled ring, so that gas seal at the joint position is formed to isolate oxygen, and molten steel is prevented from being oxidized in the flowing and conveying process. The outer end of the air supply pipe supplies air, so that the air pipe cannot be pulled nearby the edge of the steel ladle when the anti-oxidation air filling ring is installed, the operation of components is safe, the components are not easy to damage, and the controllability is stronger.
Preferably, the outer side of the anti-oxidation inflation ring is connected with a hard hanging pipe with a pipe cavity communicated with the hollow pipe cavity of the anti-oxidation inflation ring, the air supply pipe is connected to the outer end, far away from the anti-oxidation inflation ring, of the hard hanging pipe, the middle of the hard hanging pipe is fixedly connected with a hanging rope for hanging the hard hanging pipe, and the outer end of the hard hanging pipe is detachably connected with a balancing weight.
The anti-oxidation inflation ring is convenient to align and remove due to the structural mode, other hard fixing such as bolts and the like are not needed, the anti-oxidation inflation ring is convenient for workers to operate remotely, and the anti-oxidation inflation ring is safer. The balancing weight can be set to be detachable, simultaneously can also be adjustable to join in marriage weight, for example hang a iron stand basket in stereoplasm pipe hanger outer end, add the balancing weight in the iron stand basket, especially after anti-oxidation ring of inflating is counterpointed well, can add the balancing weight again in the iron stand basket to reach and correspond inseparabler firm.
Preferably, a height-fixing sheet or a height-fixing cover which is abutted against the bottom surface of the tundish and used for being matched with a balancing weight to position the anti-oxidation inflation ring is arranged at the top of the anti-oxidation inflation ring.
The upper end of the height-fixing sheet is propped against the lower part of the tundish, so that the anti-oxidation inflation ring lifted up under the action of the balancing weight is positioned at a required height position. If a fixed-height cover is selected, the joint can be better sealed in an air mode, and a larger argon environment is formed.
Preferably, the anti-oxidation inflation ring is a split ring with an opening on the other side opposite to the side connected with the hard hanging pipe, the inner side of the anti-oxidation inflation ring is at least provided with an air outlet hole close to the two ends of the opening of the split ring and the symmetric centers of the two ends, and the lower part of the air outlet hole on the inner side of the anti-oxidation inflation ring is arranged towards a circle of top seam formed by sleeving the water feeding pipe and the sewer pipe.
The utility model provides an anti-oxidation gas ring is the split ring to be convenient for operator's remote end operation with the split ring cover to the downcomer on, keep away from the high temperature region, safer.
Preferably, the downcomer includes the bell and spigot joint section that is located the top and becomes thick gradually from bottom to top and the straight section that draws that connects in the bell and spigot joint section bottom, the opening width of split ring is greater than the diameter of directly drawing the section, is less than the external diameter of bell and spigot joint section.
Preferably, the bottom of the anti-oxidation inflation ring is provided with a positioning ring part with the inner diameter smaller than the outer diameter of the upper end face of the sleeving connection section, the upper surface of the positioning ring part is provided with a limiting platform, and the outer side face of the sleeving connection section is provided with a matching platform attached to the surface of the limiting platform.
The setting up of above-mentioned structure makes anti-oxidation gas filled ring both can easily overlap to the downcomer on, can block on the water pipe because the change of water pipe external diameter when lifting on sheatheeing in again simultaneously to further carry out accurate location to anti-oxidation gas filled ring, face-to-face butt joint simultaneously is more stable in the use.
Preferably, a hanging ring is arranged in the middle of the hard hanging pipe, the hanging rope is connected with the hanging ring, and the upper end of the hanging rope is connected to the outer wall surface of the tundish; stereoplasm hanging pipe outer end rigid coupling have through the gyration formed opposite ends link firmly in the handle of stereoplasm hanging pipe along axial both sides, the handle includes that one end is connected stereoplasm hanging pipe, the guide portion that the other end was raised up and is connected the handle portion between the guide portion.
Thereby the staff operation of being convenient for when the operation on the spot is operated to the guide portion cooperation handle portion of raising, the assembly is also more laborsaving simultaneously.
Preferably, the upper water pipe extends downwards into the straight guide section, the sleeve section is further provided with an air guide hole penetrating through the wall surface of the sleeve section, the air guide hole is an inclined hole inclined downwards from outside to inside, the outer port is a straight port vertically arranged, an air cavity communicated with the hollow pipe cavity is arranged in the positioning ring portion, an air supply hole communicated with the air cavity and formed corresponding to the air guide hole is formed in the positioning ring portion, the bottom of the tundish is provided with a position guide component hanging and extending to a position guide rod lower than the lowest position of the sleeve section, and the side portion of the hard hanging pipe is provided with a position guide groove which is opened towards one side of the sewer pipe, penetrates up and down and is matched and sleeved with the position guide rod.
The guide rod is matched with the guide groove to ensure that the air guide hole corresponds to the air supply hole on the positioning ring part accurately. The arrangement of the straight opening reduces the accuracy requirement of the alignment of the air guide hole and the air supply hole, and improves the convenience of production and use. And the molten steel can not overflow from the bleed air hole.
Can be equipped with the sealing washer on the cooperation platform, the outer port in bleed hole is located the sealing washer below, the bottom surface that should upwards surpass the sealing washer in a word mouth top part, ensures effective counterpoint and supplies gas.
Preferably, the bottom of the guide rod is a guide section which is gradually reduced from top to bottom, and the axial projection width of the guide rod along the hard hanging pipe is equal to the in-groove width of the guide groove in a top view.
The structure not only facilitates the alignment of the guide rod and the guide groove, but also conveniently adjusts the alignment position through the final clamping of the guide rod and the guide groove. The gas is fully supplied to the middle part of the sleeve joint section, so that oxygen in a joint formed by butting the upper water gap and the lower water gap is fully and fully expelled. And the gas seal at the top of the joint is matched, so that the joint is ensured to be surrounded by the fed argon environment after oxygen is removed.
Preferably, an air-distributing baffle is arranged in the anti-oxidation inflation ring corresponding to the butt joint of the hollow pipe cavity and the hard hanging pipe, and the air-distributing baffle extends and expands towards two sides along the hollow pipe cavity; the top of the anti-oxidation inflating ring is provided with a height fixing cover which is abutted against the bottom surface of the tundish and is used for being matched with a balancing weight to position the anti-oxidation inflating ring, the height fixing cover is arranged around the upper edge of the anti-oxidation inflating ring, and the upper part of the cover wall is provided with a plurality of vent holes; one end of the height fixing cover corresponding to the anti-oxidation inflating ring is provided with a retractable telescopic part which can be pushed out by a push plate to fill the vacant position of the opening of the anti-oxidation inflating ring, the rear end of the telescopic part is provided with a push plate which is extended outwards, the part of the telescopic part corresponding to the anti-oxidation inflating ring is sleeved outside the anti-oxidation inflating ring, and the inner side of the telescopic part is provided with an air outlet.
The fixed-height cover can comprehensively protect the joint environment by gas, and the expansion part can form a closed anti-oxidation inflation ring when the requirement on gas seal is higher, so that the gas seal performance is further improved. The telescopic part has no air supply function and is not communicated with the inner cavity of the anti-oxidation inflating ring, so that the uniform air supply of the anti-oxidation inflating ring is ensured. A track is arranged on the inflation ring, and then the telescopic part is pushed out along the track by pushing of a push plate.
In conclusion, the invention has the following beneficial effects:
1. argon is supplied to the periphery of the joint through the anti-oxidation gas-filled ring, so that gas seal at the joint position is formed to isolate oxygen, and molten steel is prevented from being oxidized in the flowing and conveying process.
2. The utility model provides a setting up of structure makes anti-oxidation gas filled ring both can easily overlap to the downcomer on, can overlap again simultaneously and lift up because the change of water pipe external diameter and block on the water pipe when putting to further carry out accurate location to anti-oxidation gas filled ring, face-to-face butt joint simultaneously is more stable in the use.
3. The application has the advantages of simple structure, convenient processing, low cost, good use effect and safe use.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of a first structure of an anti-oxidation gas-filled ring;
FIG. 3 is a schematic view of a structure of an anti-oxidation gas-filled ring;
FIG. 4 is a schematic structural view of the second embodiment;
FIG. 5 is a schematic structural view of the present application with bleed holes;
FIG. 6 is a schematic view of an inflatable ring structure with a constriction;
FIG. 7 is a schematic view of a rigid drop tube construction;
FIG. 8 is a schematic view of the structure of the guide rod and the guide slot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The first embodiment is as follows:
a connecting structure from a tundish to a crystallizer comprises an upper water pipe 2 which is connected to the bottom of a tundish 1 and is provided with an upper water opening, a lower water pipe 4 which is arranged on the crystallizer and is provided with a lower water opening, wherein the upper water pipe opening is sleeved on the outer side of the bottom of the upper water pipe, the connecting structure further comprises an anti-oxidation inflation ring 5 which is arranged around the top of a circle of joint formed by the upper water pipe and the lower water pipe in a sleeved mode and is provided with a hollow pipe cavity, a plurality of air outlet holes are formed in the inner side of the anti-oxidation inflation ring, and an air supply pipe 6 is connected to the outer side of the anti-oxidation inflation ring.
Argon is supplied to the periphery of the joint through the anti-oxidation gas-filled ring, so that gas seal at the joint position is formed to isolate oxygen, and molten steel is prevented from being oxidized in the flowing and conveying process.
The outer side of the anti-oxidation inflation ring is connected with a hard hanging pipe 61 with a pipe cavity communicated with the hollow pipe cavity of the anti-oxidation inflation ring, and the air supply pipe is connected to the outer end, far away from the anti-oxidation inflation ring, of the hard hanging pipe.
The middle part of the hard hanging pipe is fixedly connected with a hanging rope 62 for hanging the hard hanging pipe, and the outer end of the hard hanging pipe is connected with a balancing weight 63. And a hanging ring is arranged in the middle of the hard hanging pipe, and the lifting rope is connected with the hanging ring.
The anti-oxidation inflation ring is convenient to align and remove due to the structural mode, other hard fixing such as bolts and the like are not needed, the anti-oxidation inflation ring is convenient for workers to operate remotely, and the anti-oxidation inflation ring is safer.
The top of the anti-oxidation inflating ring is provided with a height fixing sheet 65 or a height fixing cover which is abutted against the bottom surface of the tundish and is used for being matched with a balancing weight to position the anti-oxidation inflating ring.
The upper end of the height-fixing sheet is propped against the lower part of the tundish, so that the anti-oxidation inflation ring lifted up under the action of the balancing weight is positioned at a required height position. If the height-fixing cover is selected, the joint can be better sealed by air, and a larger argon environment is formed.
The anti-oxidation inflating ring is a split ring with an opening on the other side opposite to the side connected with the hard hanging pipe, the inner side of the anti-oxidation inflating ring is at least provided with an air outlet hole at two ends close to the opening of the split ring and at the symmetrical center of the two ends, and the lower part of the air outlet hole on the inner side of the anti-oxidation inflating ring is arranged towards a circle of top seam formed by sleeving the water feeding pipe and the sewer pipe.
The utility model provides an anti-oxidation ring of aerifing is the split ring to be convenient for operator's remote end operation overlaps the split ring to the downcomer, keeps away from the high temperature region, and is safer.
The downcomer comprises a sleeving section 41 which is positioned at the top and gradually becomes thicker from bottom to top and a straight leading section 42 connected to the bottom of the sleeving section, and the opening width of the split ring is larger than the diameter of the straight leading section and smaller than the outer diameter of the sleeving section.
Example two:
different from the above embodiment, the bottom of the anti-oxidation inflation ring is provided with a limit ring part 7 with the inner diameter smaller than the outer diameter of the upper end surface of the sleeving connection section.
The locating ring portion upper surface is equipped with spacing platform 71, be equipped with on the lateral surface of cup jointing the section with spacing platform face looks adaptation platform.
The setting up of above-mentioned structure makes anti-oxidation gas filled ring both can easily overlap to the downcomer on, can block on the water pipe because the change of water pipe external diameter when lifting on sheatheeing in again simultaneously to further carry out accurate location to anti-oxidation gas filled ring, face-to-face butt joint simultaneously is more stable in the use.
Example three:
different from the embodiment, the middle part of the hard lifting pipe is provided with a lifting ring, the lifting rope is connected with the lifting ring, and the upper end of the lifting rope is connected with the outer wall surface of the tundish; stereoplasm hanging pipe outer end rigid coupling have through the gyration formed opposite ends link firmly in the handle of stereoplasm hanging pipe along axial both sides, the handle includes that one end is connected stereoplasm hanging pipe, the guide portion 611 that the other end was raised up and connects in the handle portion 612 between the guide portion.
Example four:
different from the embodiment, the water supply pipe extends downwards into the straight guide section, the sleeve section is further provided with an air guide hole 401 penetrating through the wall surface of the sleeve section, the air guide hole is an inclined hole inclined downwards from outside to inside, an outer port is a straight port vertically arranged, an air cavity communicated with the hollow pipe cavity is arranged in the positioning ring portion, an air supply hole 501 communicated with the air cavity and formed corresponding to the air guide hole is arranged in the positioning ring portion, the bottom of the tundish is provided with a guide part hanging and extending to a guide rod 81 lower than the lowest position of the sleeve section, and the side part of the hard hanging pipe is provided with a guide groove 82 which is opened towards one side of the sewer pipe and is communicated with the guide rod up and down and is matched and sleeved with the guide rod. The bottom of the guide rod is a guide section 811 gradually reduced from top to bottom, and the axial projection width of the guide rod along the hard hanging pipe is equal to the width of the interior of the guide groove in a overlooking mode.
The guide rod is matched with the guide groove to ensure that the air guide hole corresponds to the air supply hole on the positioning ring part accurately. The arrangement of the straight opening reduces the accuracy requirement of the alignment of the air guide hole and the air supply hole, and improves the convenience of production and use.
Can be equipped with the sealing washer on the cooperation platform, the outer port in bleed hole is located the sealing washer below, the bottom surface that should upwards surpass the sealing washer in a word mouth top part, ensures effective counterpoint and supplies gas.
The structure not only facilitates the alignment of the guide rod and the guide groove, but also conveniently adjusts the alignment position through the final clamping of the guide rod and the guide groove. The gas is fully supplied to the middle part of the sleeve joint section, so that oxygen in a joint formed by butting the upper water gap and the lower water gap is fully and fully expelled. And the gas seal at the top of the joint is matched, so that the joint is surrounded by the fed argon environment after oxygen is completely removed.
Example five:
different from the embodiment, an air-distributing baffle 502 is arranged in the anti-oxidation inflation ring corresponding to the butt joint of the hollow pipe cavity and the hard hanging pipe, and the air-distributing baffle extends and expands along the hollow pipe cavity to two sides; the top of the anti-oxidation inflating ring is provided with a height fixing cover which is abutted against the bottom surface of the tundish and is used for being matched with a balancing weight to position the anti-oxidation inflating ring, the height fixing cover is arranged around the upper edge of the anti-oxidation inflating ring, and the upper part of the cover wall is provided with a plurality of vent holes; one end of the height-fixing cover corresponding to the anti-oxidation inflating ring is provided with a retractable telescopic part 9 which can be pushed out through a push plate to fill the vacant position of the opening of the anti-oxidation inflating ring, the rear end of the telescopic part is provided with a push plate which is extended outwards, and the part of the telescopic part corresponding to the anti-oxidation inflating ring is sleeved outside the anti-oxidation inflating ring. The gas homogenizing baffle is arranged in the middle of the hollow pipe cavity, and the height of the gas homogenizing baffle is smaller than the diameter of the hollow pipe cavity.
The fixed-height cover can comprehensively protect the joint environment by gas, and the expansion part can form a closed anti-oxidation inflation ring when the requirement on gas seal is higher, so that the gas seal performance is further improved. The telescopic part has no air supply function and is not communicated with the inner cavity of the anti-oxidation inflating ring, so that the uniform air supply of the anti-oxidation inflating ring is ensured. A track is arranged on the inflation ring, and then the telescopic part is pushed out along the track by pushing of a push plate.
During the installation will aerify the ring cover through the open position and lead the section directly on, then under the lifting rope fulcrum effect, lift on the fulcrum under the effect of balancing weight to and combine handle human action again to aerify and encircle the fulcrum, the guide pole cup joints with leading a groove counterpoint, aerifys the ring and continues to lift, makes under the effect of guide pole and leading a groove block gradually draw gas pocket and air supply pore pair to aim at, aerifys the ring installation and targets in place. If necessary, the telescopic part can be adjusted to push the pushing position, and the telescopic part fills the opening position to form a closed loop.
The application has the advantages of simple structure, convenient processing, low cost, good use effect and safe use.
Claims (4)
1. A connecting structure of a tundish to a crystallizer is characterized in that: the device comprises an upper water pipe (2) which is connected with the bottom of a tundish (1) and is provided with an upper water opening, a lower water pipe (4) which is arranged on a crystallizer and is provided with a lower water opening, wherein the upper water pipe opening is sleeved outside the bottom of the upper water pipe, the device also comprises an anti-oxidation inflating ring (5) which is wound at the top of a circle of joint formed by sleeving the upper water pipe and the lower water pipe and is provided with a hollow pipe cavity, a plurality of air outlet holes are arranged at the inner side of the anti-oxidation inflating ring, and an air feeding pipe (6) is connected outside the outer side of the anti-oxidation inflating ring;
the outer side of the anti-oxidation inflation ring is connected with a hard hanging pipe (61) with a pipe cavity communicated with the hollow pipe cavity of the anti-oxidation inflation ring, the air supply pipe is connected with the outer end, far away from the anti-oxidation inflation ring, of the hard hanging pipe, the middle of the hard hanging pipe is fixedly connected with a hanging rope (62) for hanging the hard hanging pipe, and the outer end of the hard hanging pipe is detachably connected with a balancing weight (63);
the top of the anti-oxidation inflating ring is provided with a height fixing sheet (65) or a height fixing cover which is abutted against the bottom surface of the tundish and is used for positioning the anti-oxidation inflating ring by matching with a balancing weight;
the anti-oxidation inflating ring is a split ring with an opening on the other side opposite to the side connected with the hard hanging pipe, the inner side of the anti-oxidation inflating ring is at least provided with an air outlet hole close to the two ends of the opening of the split ring and the symmetric center of the two ends respectively, and the lower part of the air outlet hole positioned on the inner side of the anti-oxidation inflating ring is arranged towards a circle of top seam formed by sleeving the upper water pipe and the lower water pipe;
the sewer pipe comprises a sleeving connection section (41) which is positioned at the top and gradually becomes thicker from bottom to top and a straight guide section (42) connected to the bottom of the sleeving connection section, and the opening width of the open ring is larger than the diameter of the straight guide section and smaller than the outer diameter of the sleeving connection section;
the bottom of the anti-oxidation inflating ring is provided with a positioning ring part (7) with the inner diameter smaller than the outer diameter of the upper end face of the sleeving connection section, the upper surface of the positioning ring part is provided with a limiting platform (71), and the outer side face of the sleeving connection section is provided with a matching platform attached to the surface of the limiting platform;
the water supply pipe extends downwards into the straight guide section, the sleeve joint section is further provided with a gas guide hole (401) penetrating through the wall surface of the sleeve joint section, the gas guide hole is an inclined hole inclining downwards from outside to inside, an outer port is a straight port vertically arranged, an air cavity communicated with the hollow pipe cavity is arranged in the positioning ring portion, an air supply hole (501) which is formed corresponding to the gas guide hole and communicated with the air cavity is arranged in the positioning ring portion, the bottom of the tundish is provided with a guiding component which is hung downwards and extends to a guiding rod (81) lower than the lowest position of the sleeve joint section, and the side portion of the hard hanging pipe is provided with a guiding groove (82) which is communicated with an opening on one side of a sewer pipe and is matched and sleeved with the guiding rod in an up-down mode and is arranged corresponding to the guiding component.
2. A tundish to mold connection structure according to claim 1, wherein: a hanging ring is arranged in the middle of the hard hanging pipe, the hanging rope is connected with the hanging ring, and the upper end of the hanging rope is connected to the outer wall surface of the tundish; stereoplasm hanging pipe outer end rigid coupling have through the gyration formed opposite ends link firmly in the handle of stereoplasm hanging pipe along axial both sides, the handle includes that one end is connected stereoplasm hanging pipe, guide portion (611) that the other end was raised and is connected handle portion (612) between the guide portion.
3. A tundish to mold connection structure according to claim 1, wherein: the bottom of the guide rod is a guide section (811) which is gradually reduced from top to bottom, and the guide rod is arranged along the axial projection width of the hard hanging pipe and is equal to the width of the interior of the guide groove in the overlooking direction.
4. A tundish to mold connection structure according to claim 1, wherein: an air-distributing baffle (502) is arranged in the anti-oxidation inflation ring corresponding to the butt joint of the hollow pipe cavity and the hard hanging pipe, and the air-distributing baffle extends and expands towards two sides along the hollow pipe cavity; the top of the anti-oxidation inflating ring is provided with a height fixing cover which is abutted against the bottom surface of the tundish and is used for being matched with a balancing weight to position the anti-oxidation inflating ring, the height fixing cover is arranged around the upper edge of the anti-oxidation inflating ring, and the upper part of the cover wall is provided with a plurality of vent holes; one end of the height fixing cover corresponding to the anti-oxidation inflating ring is provided with a retractable telescopic part (9) which can be pushed out through a push plate to fill the vacant position of the opening of the anti-oxidation inflating ring, the rear end of the telescopic part is provided with a push plate which is extended outwards, and the part of the telescopic part corresponding to the anti-oxidation inflating ring is sleeved outside the anti-oxidation inflating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277774.2A CN107052324B (en) | 2017-04-25 | 2017-04-25 | Connecting structure from tundish to crystallizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277774.2A CN107052324B (en) | 2017-04-25 | 2017-04-25 | Connecting structure from tundish to crystallizer |
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| CN107052324A CN107052324A (en) | 2017-08-18 |
| CN107052324B true CN107052324B (en) | 2023-01-31 |
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| CN201710277774.2A Active CN107052324B (en) | 2017-04-25 | 2017-04-25 | Connecting structure from tundish to crystallizer |
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| CN107737914A (en) * | 2017-12-06 | 2018-02-27 | 江苏永钢集团有限公司 | It is a kind of to be used to prevent molten steel in the argon seal ring of casting process secondary oxidation |
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| JP2000052004A (en) * | 1998-08-14 | 2000-02-22 | Nippon Steel Corp | Molten steel continuous casting method |
| CN201287197Y (en) * | 2008-09-19 | 2009-08-12 | 济南麦哈勃冶金技术开发有限公司 | Tundish metering nozzle gas protection pouring quick-changing device |
| CN202070730U (en) * | 2011-05-25 | 2011-12-14 | 济南麦哈勃冶金技术开发有限公司 | Metering nozzle gas protection pouring quick-change device |
| CN102416452B (en) * | 2011-12-13 | 2015-04-01 | 北京科技大学 | Device for continuous casting protective casting and method for protective casting |
| CN203565856U (en) * | 2013-11-07 | 2014-04-30 | 广东韶钢松山股份有限公司 | Long nozzle locating and argon blowing ring |
| CN204108308U (en) * | 2014-09-22 | 2015-01-21 | 莱芜钢铁集团有限公司 | The device of the large water-coating port sealed argon-blowing protection of continuous casting |
| CN206662261U (en) * | 2017-04-25 | 2017-11-24 | 永兴特种不锈钢股份有限公司 | A kind of attachment structure of tundish to crystallizer |
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2017
- 2017-04-25 CN CN201710277774.2A patent/CN107052324B/en active Active
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Address after: 313000, Huzhou Huzhou economic and Technological Development Zone, Zhejiang province Yongxing special stainless steel Limited by Share Ltd Applicant after: Yongxing special material technology Co.,Ltd. Address before: 313000, Huzhou Huzhou economic and Technological Development Zone, Zhejiang province Yongxing special stainless steel Limited by Share Ltd Applicant before: YONGXING SPECIAL STAINLESS STEEL Co.,Ltd. |
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