CN110421156B - Device for preventing ladle upper nozzle from floating upwards - Google Patents
Device for preventing ladle upper nozzle from floating upwards Download PDFInfo
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- CN110421156B CN110421156B CN201910845510.1A CN201910845510A CN110421156B CN 110421156 B CN110421156 B CN 110421156B CN 201910845510 A CN201910845510 A CN 201910845510A CN 110421156 B CN110421156 B CN 110421156B
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- hole
- plate
- mounting plate
- multifunctional
- mechanism mounting
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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
- B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention relates to a device for preventing a ladle upper nozzle from floating, which comprises a mechanism mounting plate, a multifunctional limiting plate, a fixed frame, a socket brick, an upper nozzle and an upper sliding plate, wherein a stepped hole is formed in the middle of the mechanism mounting plate, a bolt seat, a pin shaft, a movable joint bolt and a nut are arranged on the outer side of the mechanism mounting plate, the multifunctional limiting plate is fixed on the mechanism mounting plate through a connecting bolt, the fixed multifunctional limiting plate is lower than the mechanism mounting plate and forms a stepped socket brick positioning groove, the upper nozzle limiting hole is formed in the middle of the multifunctional limiting plate, a mechanism positioning ring is arranged on the outer side of the multifunctional limiting plate, and the fixed frame is fixed on the mechanism mounting plate through the movable joint bolt and the nut. The invention has simple structure, safety and reliability, avoids the phenomenon of floating up in the using process of the water feeding port, improves the positioning precision of the ladle mechanism, and is an ideal matching product for upgrading and reforming the ladle mechanism with more than 70 tons at present, especially the ladle mechanism with thinner steel plate of the upper sliding plate brick cavity and higher surface pressure.
Description
Technical Field
The invention relates to the technical field of steel ladles, in particular to a device for preventing a ladle upper nozzle from floating upwards.
Background
When the ladle sliding nozzle mechanism is used as important equipment for steelmaking, 1600-DEG high-temperature molten steel is sequentially poured into a brick cup, an upper nozzle, an upper sliding plate, a lower sliding plate and a lower nozzle from a ladle, and flows into a continuous casting tundish to finish the steel pouring process.
The prior known steel ladle sliding gate mechanism with higher surface pressure such as pneumatic tool pressurization is thinner in the thickness of a sliding plate brick cavity steel plate on a fixed frame, generally 30-40 mm, and has the following defects: firstly, the upper nozzle floats upwards towards the direction of a brick cup in the continuous use process under the influence of the pressure of a sliding plate of a ladle sliding nozzle mechanism and the buoyancy of molten steel, and when the upper nozzle is serious, the malignant steel running accident between the upper sliding plate and the upper nozzle is extremely easy to cause, so that the normal production of steelmaking is greatly endangered, the upper nozzle is replaced in advance, the production cost is increased, and the labor intensity of workers is also increased. Secondly, the floating of the water feeding port can cause floating of the brick cup, and the service life of the brick cup is influenced, so that the ladle is put off duty in advance, the steelmaking production cost is increased, and the steelmaking production is influenced. Thirdly, in the molten steel pouring process, in order to prevent the ladle mechanism fixing frame from moving caused by external force driving, 4-6 positioning blocks are usually arranged on the periphery of the fixing frame, namely on the surface of the mechanism mounting plate, so that the manufacturing cost of the mechanism mounting plate and the field construction difficulty are increased, and the workload of field workers on mechanism maintenance is increased. The above is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the problems, the invention provides a device for preventing a ladle nozzle from floating upwards.
The specific contents are as follows: prevent ladle upper nozzle come-up device, the device include mechanism mounting panel, multi-functional spacing dish, fixed frame, brick cup, upper nozzle and slide, characterized by:
the mechanism mounting plate is cuboid, circular step holes are formed in the middle of the mechanism mounting plate, bolt seats are fixed at four corners of the outer side face of the mechanism mounting plate, movable bolts which swing left and right are hinged to each bolt seat through pin shafts, nuts matched with the movable bolts are arranged on the movable bolts in a rotating mode, the multifunctional limiting plates are circular discs which are of step shapes, the step shapes of the multifunctional limiting plates are matched with the step holes, the multifunctional limiting plates are correspondingly fixed in the step holes of the mechanism mounting plate, brick cup positioning grooves with the height difference of H are formed between the inner side face of the multifunctional limiting plates and the inner side face of the mechanism mounting plate, wherein H is smaller than or equal to 40mm, water inlet limiting holes with Y-shaped cross sections are formed in the multifunctional limiting plates, each water inlet limiting hole comprises a cylindrical hole close to the inner side face of the multifunctional limiting plate, a circular truncated cone hole close to the outer side face of the multifunctional limiting plate, the axis of each water inlet limiting hole is collinear with the axis of the multifunctional limiting plate, the included angle alpha is 50 degrees, the included angle alpha degrees between the bus of each circular cone hole and the axis of each circular cone limiting plate is smaller than or equal to 50 degrees, the water inlet limiting plate is not fixed to the corresponding positioning ring positioning nut on the annular limiting plate through the annular limiting mechanism and the positioning ring.
Preferably, the inner side surface of the fixed frame is provided with an inward mechanism positioning groove which is matched with the mechanism positioning ring, and the mechanism positioning ring is positioned in the mechanism positioning groove.
Preferably, the center of the outer side surface of the fixed frame is provided with an inward-sinking brick cavity, the brick cavity is communicated with the upper water gap limiting hole through a cylindrical through hole, and the diameter of the through hole is equal to the inner diameter of the mechanism positioning ring and is coaxial with the mechanism positioning ring.
Preferably, the big head of the water feeding port comprises a small cylindrical front section and a big cylindrical rear section, wherein the front section and the rear section are in transitional connection through a connecting round platform, and the connecting round platform is matched with the round platform hole.
Preferably, the upper water gap is correspondingly arranged on the upper water gap limiting hole, and the upper sliding plate is correspondingly arranged in the brick cavity of the fixed frame.
Preferably, the length of the rear section of the water feeding port is 20-50mm.
Preferably, the depth of the mechanism positioning groove is 8-23mm.
Preferably, the height of the mechanism positioning ring is 5-20mm.
Preferably, the end part of the brick cup is provided with a brick cup positioning table, the brick cup positioning table is matched with the brick cup positioning groove in shape, and the brick cup is arranged in the brick cup positioning groove of the mechanism mounting plate through the brick cup positioning table.
Preferably, the multifunctional limiting plate is fixed with the mechanism mounting plate through connecting bolts, the connecting bolts are uniformly distributed on the edge of the multifunctional limiting plate, and the number of the connecting bolts is 3-8.
The beneficial technical effects of the invention are as follows:
(1) the setting of the spacing hole of multi-functional spacing dish middle part upper nozzle avoids the upper nozzle to use the phenomenon that floats that produces because of external force, has avoided the emergence of the malignant accident of ladle mechanism steel leakage that arouses because of upper nozzle come-up, has avoided the brick cup come-up that arouses because of upper nozzle come-up, has greatly improved ladle mechanism's whole security performance, has guaranteed the normal clear of steelmaking production.
(2) The positioning rings of the external mechanism of the multifunctional limiting disc and the positioning grooves of the mechanism corresponding to the side surfaces of the fixed frame cancel all positioning blocks around the fixed frame, so that the positioning precision of the whole ladle mechanism is improved, the appearance of the mechanism mounting plate is smaller, the structure is simpler and more compact, the manufacturing cost is low, and the site construction is easy.
(3) The setting of mechanism mounting panel middle part ladder formula brick cup constant head tank has improved the brick cup installation accuracy, makes the brick cup installation easier.
The invention provides the device for preventing the upper water gap of the steel ladle from floating, which has the advantages of simple structure, safety, reliability, low labor intensity and low comprehensive cost, avoids the phenomenon of floating in the use process of the upper water gap, improves the positioning precision of the steel ladle mechanism, and is an ideal matching product for upgrading and reforming the steel ladle mechanism with more than 70 tons at present, particularly the steel ladle mechanism with thinner upper sliding plate brick cavity steel plate and higher surface pressure.
Drawings
FIG. 1 is a schematic perspective view of a device for preventing a ladle nozzle from floating upwards;
FIG. 2 is a cross-sectional view of the mounting relationship between the multifunctional spacing disc, the brick cup, the water inlet and the mechanism mounting plate;
FIG. 3 is a cross-sectional view of the mounting relationship between the multi-function limit plate, the stationary frame and the mechanism mounting plate;
FIG. 4 is a schematic perspective view of the multifunctional spacing disc mounted on the mechanism mounting plate;
FIG. 5 is a cross-sectional view of the stationary frame;
FIG. 6 is a cross-sectional view of the multi-functional limit plate;
FIG. 7 is a cross-sectional view of the upper nozzle;
in the figure: 11. the device comprises a mechanism mounting plate, 12, a bolt seat, 13, a pin shaft, 14, a movable joint bolt, 15, a nut and 16, a pocket block positioning groove, 21, a multifunctional limiting disc, 22, a water inlet limiting hole, 23, a mechanism positioning ring, 24, a connecting bolt, 25, a cylindrical hole of the water inlet limiting hole, 26, a round platform hole of the water inlet limiting hole, 31, a fixed frame, 32, a through hole, 33, a brick cavity, 34, a mechanism positioning groove, 41, a water inlet big end, 42, a front section of the water inlet big end, 43, a connecting round platform, 44, a rear section of the water inlet big end, 51, an upper sliding plate and 61 pocket blocks.
H. The depth of the brick cup positioning groove and the included angle between the generatrix of the round platform hole and the axis of the generatrix.
Detailed Description
1-7, a device for preventing a ladle nozzle from floating upwards comprises a mechanism mounting plate, a multifunctional limiting plate, a fixed frame, a brick cup, a nozzle and an upper sliding plate;
the mechanism mounting plate is cuboid, a circular step hole is arranged in the middle of the mechanism mounting plate, bolt seats are fixed at four corners of the outer side surface of the mechanism mounting plate, movable bolts swinging leftwards and rightwards are hinged on each bolt seat through pin shafts, nuts matched with the movable bolts are screwed on each movable bolt, the multifunctional limiting plate is a step-shaped disc, the step shape of the multifunctional limiting plate is matched with the step hole, the multifunctional limiting plate is correspondingly fixed in the step hole of the mechanism mounting plate, a brick cup positioning groove with the height difference H is formed between the inner side surface of the multifunctional limiting plate and the inner side surface of the mechanism mounting plate, wherein H is more than or equal to 20mm and less than or equal to 40mm, the multifunctional limiting disc is provided with a water inlet limiting hole with a Y-shaped section, the water inlet limiting hole comprises a cylindrical hole close to the inner side surface of the multifunctional limiting disc and a round platform hole close to the outer side surface of the multifunctional limiting disc, the axis of the water inlet limiting hole is collinear with the axis of the multifunctional limiting disc, wherein the included angle between the generatrix of the round platform hole and the axis of the round platform hole is alpha, wherein the alpha is more than or equal to 25 degrees and less than or equal to 50 degrees, the setting of the water inlet limiting hole prevents the floating phenomenon caused by external force in the use process of the water inlet, avoids the steel ladle mechanism steel leakage malignant accident caused by the floating of the water inlet, avoids the floating of a seat brick caused by the floating of the water inlet, greatly improves the integral safety performance of the steel ladle mechanism, and ensures the normal operation of steel making production;
the multifunctional limiting disc is characterized in that an annular mechanism locating ring protruding outwards is arranged on the outer side face of the multifunctional limiting disc, the mechanism locating ring and the upper water gap limiting hole are coaxial, the inner diameter of the mechanism locating ring is not smaller than the maximum diameter of the upper water gap limiting hole, the height of the mechanism locating ring is 5-20mm, the fixing frame is fixed on a bolt seat of the mechanism mounting plate through a movable joint bolt and a nut, an inwards-sunk mechanism locating groove is formed in the inner side face of the fixing frame, the depth of the mechanism locating groove is 8-23mm, the mechanism locating groove is matched with the mechanism locating ring, the mechanism locating ring is located in the mechanism locating groove, the mechanism locating ring and the mechanism locating groove corresponding to the back face of the fixing frame are arranged, all locating blocks around the fixing frame are omitted, the locating precision of the whole ladle mechanism is improved, the appearance of the mechanism mounting plate is smaller, the structure is simpler and compact, the manufacturing cost is low, and site construction is easy.
The center of the outer side surface of the fixed frame is provided with an inward-sinking brick cavity, the brick cavity is communicated with the upper water gap limiting hole through a cylindrical through hole, and the diameter of the through hole is equal to the inner diameter of the mechanism positioning ring and is coaxial with the mechanism positioning ring.
The big head of the water inlet comprises a small cylindrical front section and a big cylindrical rear section, the front section and the rear section are in transitional connection through a connecting round platform, the connecting round platform is matched with the round platform hole, and the length of the rear section of the water inlet is 20-50mm.
The upper water gap is correspondingly arranged on the upper water gap limiting hole, and the upper sliding plate is correspondingly arranged in the brick cavity of the fixed frame.
The end part of the brick cup is provided with a brick cup positioning table, the brick cup positioning table is matched with the brick cup positioning groove in shape, and the brick cup is arranged in the brick cup positioning groove of the mechanism mounting plate through the brick cup positioning table.
The multifunctional limiting disc is fixed with the mechanism mounting plate through connecting bolts, the connecting bolts are uniformly distributed on the edge of the multifunctional limiting disc, and the number of the connecting bolts is 3-8.
The working process of the invention comprises the following steps:
after the installation of the mechanism mounting plate is finished, the multifunctional limiting plate is fixed in a stepped hole in the middle of the mechanism mounting plate by using a connecting bolt, then the steel ladle mechanism is fixed on a bolt seat by using a movable joint bolt and a nut through a fixed frame, the whole steel ladle mechanism is installed and positioned in a brick cup positioning groove on the inner side of the mechanism mounting plate during cold repair operation, when hot repair operation is performed, the fire clay smeared on the outer side of the water inlet is installed in a water inlet limiting hole of the multifunctional limiting plate by using a through hole of the fixed frame, the fire clay smeared on the upper sliding plate is installed in a brick cavity of the fixed frame on the outer side of the water inlet, and the whole hot repair operation of the steel ladle mechanism is continuously completed.
The above examples are merely illustrative of the preferred embodiments of the present invention, and various modifications and improvements to the technical solution of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the modifications and improvements fall within the scope of the invention as defined in the appended claims.
Claims (8)
1. Prevent ladle upper nozzle come-up device, the device include mechanism mounting panel, multi-functional spacing dish, fixed frame, brick cup, upper nozzle and slide, characterized by:
the mechanism mounting plate is cuboid, a circular step hole is formed in the middle of the mechanism mounting plate, four corners of the outer side surface of the mechanism mounting plate are fixedly provided with bolt seats, each bolt seat is hinged with a left-right swinging movable bolt through a pin shaft, each movable bolt is rotatably provided with a nut matched with the movable bolt, the multifunctional limiting plate is a circular disc with a step shape, the step shape of the multifunctional limiting plate is matched with the step hole, the multifunctional limiting plate is correspondingly fixed in the step hole of the mechanism mounting plate, a brick cup positioning groove with the height difference H is formed between the inner side surface of the multifunctional limiting plate and the inner side surface of the mechanism mounting plate, wherein H is smaller than or equal to 40mm, a water inlet limiting hole with a Y-shaped section is formed in the multifunctional limiting plate, the water inlet limiting hole comprises a cylindrical hole close to the inner side surface of the multifunctional limiting plate and a circular truncated cone hole close to the outer side surface of the multifunctional limiting plate, the axis of the upper water inlet limiting hole is collinear with the axis of the multifunctional limiting plate, the included angle alpha is 50 DEG, a water inlet is formed between the inner side surface of the circular disc and the circular ring-shaped limiting plate and the inner diameter of the movable bolt is not fixed on the positioning ring and the positioning plate, and the water inlet limiting plate is not larger than the positioning nut is fixed on the circular ring positioning hole; the inner side surface of the fixed frame is provided with an inward mechanism positioning groove which is matched with the mechanism positioning ring, and the mechanism positioning ring is positioned in the mechanism positioning groove; the height of the mechanism positioning ring is 5-20mm.
2. The ladle nozzle floating prevention device according to claim 1, wherein: the center of the outer side surface of the fixed frame is provided with an inward-sinking brick cavity, the brick cavity is communicated with the upper water gap limiting hole through a cylindrical through hole, and the diameter of the through hole is equal to the inner diameter of the mechanism positioning ring and is coaxial with the mechanism positioning ring.
3. The apparatus for preventing floating of a ladle nozzle as recited in claim 2, wherein: the big head of the water feeding port comprises a small cylindrical front section and a big cylindrical rear section, wherein the front section and the rear section are in transitional connection through a connecting round platform, and the connecting round platform is matched with the round platform hole.
4. A ladle nozzle floating prevention device according to claim 3, wherein: the upper water gap is correspondingly arranged on the upper water gap limiting hole, and the upper sliding plate is correspondingly arranged in the brick cavity of the fixed frame.
5. A ladle nozzle floating prevention device according to claim 3, wherein: the length of the rear section of the water feeding port is 20-50mm.
6. The ladle nozzle floating prevention device according to claim 1, wherein: the depth of the mechanism positioning groove is 8-23mm.
7. The ladle nozzle floating prevention device according to claim 1, wherein: the end part of the brick cup is provided with a brick cup positioning table, the brick cup positioning table is matched with the brick cup positioning groove in shape, and the brick cup is arranged in the brick cup positioning groove of the mechanism mounting plate through the brick cup positioning table.
8. The ladle nozzle floating prevention device according to claim 1, wherein: the multifunctional limiting disc is fixed with the mechanism mounting plate through connecting bolts, the connecting bolts are uniformly distributed on the edge of the multifunctional limiting disc, and the number of the connecting bolts is 3-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845510.1A CN110421156B (en) | 2019-09-09 | 2019-09-09 | Device for preventing ladle upper nozzle from floating upwards |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845510.1A CN110421156B (en) | 2019-09-09 | 2019-09-09 | Device for preventing ladle upper nozzle from floating upwards |
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| Publication Number | Publication Date |
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| CN110421156A CN110421156A (en) | 2019-11-08 |
| CN110421156B true CN110421156B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910845510.1A Active CN110421156B (en) | 2019-09-09 | 2019-09-09 | Device for preventing ladle upper nozzle from floating upwards |
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Citations (9)
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| US4327847A (en) * | 1977-07-26 | 1982-05-04 | Didier-Werke Ag | Sliding gate nozzles |
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| CN201070668Y (en) * | 2007-07-25 | 2008-06-11 | 濮阳濮耐高温材料（集团）股份有限公司 | Steel ladle sliding water gap device |
| CN201579411U (en) * | 2010-01-14 | 2010-09-15 | 李顺旺 | Intelligent ladle sliding nozzle mechanism |
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-
2019
- 2019-09-09 CN CN201910845510.1A patent/CN110421156B/en active Active
Patent Citations (9)
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| US4327847A (en) * | 1977-07-26 | 1982-05-04 | Didier-Werke Ag | Sliding gate nozzles |
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| CN210435360U (en) * | 2019-09-09 | 2020-05-01 | 河南熔金高温材料股份有限公司 | Multifunctional device for preventing upper nozzle of ladle from floating upwards |
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