CN217701344U

CN217701344U - Upper nozzle and pressing die thereof

Info

Publication number: CN217701344U
Application number: CN202221725313.XU
Authority: CN
Inventors: 郝立可; 甘广永; 王文寰; 王志英; 王广林; 宋利宽; 李征
Original assignee: Hebei Guoliang New Material Co ltd
Current assignee: Hebei Guoliang New Material Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-01
Anticipated expiration: 2032-07-05

Abstract

The utility model belongs to the technical field of the slide gate nozzle refractory material, especially, relate to a water feeding port and embossing mold utensil thereof, the water feeding port, including the water feeding port body, this internal through-hole that runs through along vertical direction that is provided with of water feeding port, the water feeding port body is provided with sunkenly with the one end that the upper slide is connected, the sunken end periphery of water feeding port body is provided with the district that contracts into. The utility model discloses go up mouth of a river simple structure sets up the district that contracts through the sunken end periphery that is connected at the mouth of a river body and upper slide, utilizes the district that contracts to step down to provide the buffer space of the thermal energy of the mouth of a river of going up, prevent that the mouth of a river from outer along the pressurized phenomenon of exploding and splitting, prolong the life at the mouth of a river greatly.

Description

Upper nozzle and pressing die thereof

Technical Field

The utility model belongs to the technical field of the slide gate nozzle refractory material, especially, relate to a water feeding hole and embossing mold utensil thereof.

Background

With the development of rapid and efficient continuous casting and secondary refining technologies and processes, a sliding gate nozzle system becomes more and more important in the modern steel smelting process and becomes an indispensable part in smelting. The sliding gate is a control device of molten steel in the casting process of a continuous casting machine, and can accurately adjust the water flow from a ladle to a continuous casting tundish, so that the inflow and outflow molten steel are balanced, and the continuous casting operation is easier to control. The sliding gate system has good controllability, can improve the steel-making production efficiency, is developed rapidly, and is generally used on domestic and foreign steel ladles and tundishes.

The sliding water gap system consists of an upper water gap, an upper sliding plate, a lower sliding plate and a lower water gap, molten steel enters a channel of a tundish from a ladle to play roles in sealing molten steel flow and adjusting flow, the upper water gap and the upper sliding plate are matched together through a primary and secondary port and are connected through a fire clay or a cement gum pad to play roles in sealing the molten steel. In the use process of the prior ladle upper nozzle, the outer edge of the bottom is fixed by the base of the ladle mechanism, the base of the ladle mechanism is easy to age and deform due to the action of high-temperature molten steel, and the mud gap between the base and the upper nozzle is smaller than the size of a normal mud gap due to thermal expansion at a high temperature, the upper nozzle is also heated to expand, so that the outer edge of the upper nozzle is subjected to overlarge external pressure stress to crack, safety production is influenced, and steel pricking accidents are easy to happen, so that the upper nozzle has to be replaced, the service life of the upper nozzle is greatly reduced, single-package consumption is increased, and cost is increased.

Disclosure of Invention

The utility model provides a water feeding port and embossing mold utensil thereof for solve current water feeding port and appear outer problem of exploding the fracture easily, improve the life of water feeding port.

In order to realize the purpose, the utility model discloses a technical scheme be:

the first aspect provides a water feeding port, including the water feeding port body, this internal through-hole that runs through along vertical direction that is provided with of water feeding port, the one end that water feeding port body and upper slide are connected is provided with sunkenly, the sunken end periphery of water feeding port body is provided with the district that contracts into.

Furthermore, the retraction distance of the retraction area is 2-5mm, and the height of the retraction area is 20-50mm.

Preferably, the setback distance of the setback region is 3mm, and the height of the setback region is 30mm.

A second aspect, the utility model provides a mould for suppressing above-mentioned mouth of a river, including the mouth of a river core, mouth of a river mould end, mouth of a river mould lining and mouth of a river mould lid have been cup jointed in proper order to the mouth of a river core periphery of going up, the inside indentation of mouth of a river mould lining top lateral wall forms the inside lining and places the platform, the inside lining is placed the activity of bench and is placed the mouth of a river inside lining, go up the mouth of a river inside lining respectively with mouth of a river mould lining top inner wall go up mouth of a river mould lid outer wall and closely laminate, the width of going up the mouth of a river inside lining is greater than the inside width that sinks of platform is placed to the inside lining, go up the mouth of a river mould end go up mouth of a river mould lining go up the mouth of a river inside lining with it is in jointly to go up mouth of a river mould lid enclose synthetic confined pressing chamber in the mouth of a river core outside.

Further, the inner lining of the upper nozzle is 2-5mm wider than the inner lining placing platform. Preferably, the inner liner of the upper nozzle is wider than the inner liner placing table by 3mm.

Furthermore, the upper nozzle core comprises an upper core and a lower core, the upper end and the lower end of the lower core are respectively provided with an upper bulge and a lower bulge, and the lower end of the upper core is provided with a lower groove matched with the upper bulge of the lower core.

Further, an upper nozzle mould top plate is placed at the bottom of the upper nozzle mould bottom, and an upper groove matched with the lower protrusion of the lower mold core is formed in the upper end of the upper nozzle mould top plate.

Furthermore, the periphery of the upper nozzle type lining is respectively sleeved with an upper nozzle jacket and an upper nozzle jacket gland from bottom to top, the outer side wall of the bottom of the upper nozzle type lining is retracted inwards, the inner side wall of the bottom of the upper nozzle jacket is protruded outwards, and the upper nozzle jacket are embedded and connected with each other; the outer side wall of the top of the upper nozzle type lining retracts inwards, and the gland cover of the upper nozzle jacket is pressed on the upper nozzle jacket and the upper nozzle type lining.

Furthermore, a plurality of fixing screws are arranged on the upper nozzle jacket gland, penetrate through the upper nozzle jacket gland in the vertical direction and are inserted into the inner part of the upper nozzle jacket, and a transverse groove communicated with the bottom of each fixing screw is arranged on the upper nozzle jacket.

Specifically, four fixing screws are arranged on the upper nozzle outer sleeve pressure cover, and the four fixing screws are arranged on the upper nozzle outer sleeve pressure cover in a cross manner.

Furthermore, the upper end of the upper nozzle liner is sleeved with an upper nozzle material containing sleeve, and the upper nozzle material containing sleeve cover is pressed above the upper nozzle liner and the upper nozzle liner.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses go up mouth of a river simple structure, set up the district that contracts through the sunken end periphery that is connected at the mouth of a river body and upper slide, utilize the district that contracts to step down to the buffer space of mouth of a river thermal energy is gone up in the increase, prevents to appear the mouth of a river outer along the pressurized phenomenon of exploding and splits, prolongs the life at the mouth of a river greatly.

(2) The components of the mould for pressing the upper nozzle of the utility model are mutually independent and can be replaced; after the assembly, the die is fixed by using a fixing screw, so that the die is stable in structure and can be continuously used; through set up independent mobilizable inlet liner between inlet liner and the inlet liner type lid, be used for forming when the suppression the utility model discloses the district is advanced in contracting of the inlet, and the inlet that conveniently suppresses simultaneously is upwards ejecting. The die has good safety and convenient operation, and is suitable for application.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic sectional structure view of a water feeding port in embodiment 1 of the present invention;

fig. 2 is a mechanism matching diagram of the upper nozzle of the embodiment 1 of the present invention after installation;

fig. 3 is a schematic sectional view of a mold according to embodiment 2 of the present invention;

fig. 4 is a schematic sectional structure view of a water feeding port type liner in embodiment 2 of the present invention;

description of reference numerals:

100. a water feeding port body; 110. a through hole; 120. sinking; 130. a retraction zone; 200. a water feeding port; 300. a mechanism base; 400. brick setting; 500. a bottom steel shell; 600. an upper slide plate; 1. a top plate of the upper nozzle mold; 11. an upper groove; 2. a water feeding port mould bottom; 3. a water feeding port liner; 31. a lining placement table; 4. a water feeding port is sleeved; 41. a transverse groove; 5. a gland is sleeved outside the upper water gap; 51. a fixing screw; 6. lining of the water feeding port; 7. a material containing sleeve is arranged at the water feeding port; 8. a lower mold core; 81. an upper bulge; 82. a lower bulge; 9. an upper mold core; 91. a lower groove; 10. and a water feeding port type cover.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the water feeding nozzle comprises a water feeding nozzle body 100, a through hole 110 penetrating through the water feeding nozzle body 100 in the vertical direction is formed in the water feeding nozzle body 100, and a recess 120 is formed in one end, connected with an upper sliding plate, of the water feeding nozzle body 100, and the water feeding nozzle is characterized in that a retraction area 130 is formed in the periphery of the end, connected with the upper sliding plate, of the recess 120 of the water feeding nozzle body 100. The retraction distance of the retraction area 130 is 2-5mm, and the height of the retraction area 130 is 20-50mm; as a preferred embodiment of the present invention, the retraction distance of the retraction area 130 is 3mm, and the height of the retraction area 130 is 30mm.

The concave part is arranged at one end of the upper nozzle body, and the concave part and the convex structure of the upper sliding plate form a primary-secondary opening, so that the upper nozzle and the upper sliding plate can be conveniently clamped; set up the retraction area through the sunken end periphery at the upper nozzle body, the retraction area is located the junction of upper nozzle and ladle mechanism base, utilizes the retraction area to give way to increase the buffer space of upper nozzle thermal energy, prevent the upper nozzle outer edge pressurized burst phenomenon. The retracting distance of the retracting area of the upper nozzle is set to be 2-5mm and the height is set to be 20-50mm according to the thermal expansion property of the refractory material of the upper nozzle, and under the size, the best abdicating effect can be achieved, and meanwhile, the integral structure of the upper nozzle and the connection of the upper nozzle and other mechanisms cannot be influenced.

Referring to fig. 2, the utility model discloses go up mouth of a river 200 installation back, the bottom forms the primary and secondary mouth through sunken and slide gate mechanism's slide 600 and scarf joints fixedly, it has cup jointed brick cup 400 to go up mouth of a river 200 upper portion, the middle part is connected with the bottom shell steel 500 of mechanism, it cup joints with mechanism base 300 to go up mouth of a river 200 bottom, because it is provided with the zone of contracting to go up mouth of a river 200 bottom lateral wall, consequently, the clearance of the mouth of a river and outside mechanism base has been increased, make the mud crack increase, the buffering space of the thermal energy of the mouth of a river has been increased, make the mouth of a river outer along being difficult for the pressurized burst. The sliding mechanism of a steel mill is usually purchased directly from a manufacturer and cannot be improved, or the problem of higher modification cost exists, the device only adjusts the water feeding port which is produced by the steel mill, the structure and the connection relation of the whole sliding water gap mechanism cannot be influenced, and the improved device has low requirement on a mould, so the practicability is stronger; the service life of the water feeding port of the device is greatly prolonged in the using process, and the device has good application value.

Example 2

A mold for pressing the upper nozzle is shown in figures 3-4 and comprises an upper nozzle mold core, wherein an upper nozzle mold base 2, an upper nozzle mold liner 3 and an upper nozzle mold cover 10 are sequentially sleeved on the periphery of the upper nozzle mold core from bottom to top, the side wall of the top of the upper nozzle mold liner 3 retracts inwards to form a liner placing table 31, an upper nozzle liner 6 is movably placed on the liner placing table 31, the upper nozzle liner 6 is respectively tightly attached to the inner wall of the top of the upper nozzle mold liner 3 and the outer wall of the upper nozzle mold cover 20, the width of the upper nozzle liner 6 is larger than the inward-recessed width of the liner placing table 31, and the upper nozzle mold base 2, the upper nozzle mold liner 3, the upper nozzle liner 6 and the upper nozzle mold cover 10 are jointly arranged on the outer side of the upper nozzle mold core to form a closed nozzle pressing cavity. The inner lining 6 of the water feeding port is wider than the inner lining placing table 31 by 2-5mm; as a preferred embodiment of the utility model, the water feeding inlet liner 6 is than the liner placing table 31 is 3mm wide.

The inner lining placing table which is sunken is arranged on the upper nozzle, and is used for placing an independent upper nozzle inner lining between an upper nozzle type lining and an upper nozzle type cover, and the width of the upper nozzle type lining is larger than the sunken width of the inner lining placing table and is used for providing a retraction area on the pressed upper nozzle; the confined suppression intracavity is filled with resistant material, thereby forms the utility model discloses a water feeding port, owing to the setting in the district of advancing, wide in the middle of the narrow in water feeding port both ends, it is mobile through setting up the water feeding port inside lining, can only demolish the water feeding port inside lining after the suppression, the top is ejecting can be followed to the water feeding port that makes things convenient for the press forming, and need not to unpack whole mould apart.

Specifically, the upper nozzle core comprises an upper core 9 and a lower core 8, an upper bulge 81 and a lower bulge 82 are respectively arranged at the upper end and the lower end of the lower core 8, and a lower groove 91 matched with the upper bulge 81 of the lower core 8 is arranged at the lower end of the upper core 9; and an upper nozzle mould top plate 1 is placed at the bottom of the upper nozzle mould bottom 2, and an upper groove 11 matched with the lower bulge 82 of the lower mould core 8 is formed in the upper end of the upper nozzle mould top plate 1.

Through set up mutually supporting recess and arch respectively at last core and lower core, last mouth of a river mould roof and the terminal surface of lower core interconnect, be convenient for go up core, lower core and last mouth of a river mould and keep vertical and fixed.

Specifically, the periphery of the upper nozzle type lining 3 is respectively sleeved with an upper nozzle jacket 4 and an upper nozzle jacket gland 5 from bottom to top, the outer side wall of the bottom of the upper nozzle type lining 3 retracts inwards, the inner side wall of the bottom of the upper nozzle jacket 4 protrudes outwards, and the upper nozzle type lining and the upper nozzle jacket are embedded and connected with each other; the outer side wall of the top of the upper nozzle type lining 3 retracts inwards, and the upper nozzle jacket gland 5 covers and presses the upper nozzle jacket 4 and the upper nozzle type lining 3.

The inner side wall of the upper nozzle jacket and the outer side wall of the upper nozzle liner are provided with indents and bulges which are matched with each other, so that the upper nozzle jacket and the lower nozzle liner can be better connected and fixed; the upper nozzle jacket can be fixed by arranging the upper nozzle jacket gland cover to press the upper nozzle jacket and the inner lining of the upper nozzle, so that displacement is prevented.

Specifically, a plurality of fixing screws 51 are arranged on the upper nozzle jacket gland 5, the plurality of fixing screws 51 penetrate through the upper nozzle jacket gland 5 along the vertical direction and are inserted into the upper nozzle jacket 4, and a transverse groove 41 communicated with the bottom of each fixing screw 51 is arranged on the upper nozzle jacket 4. More specifically, four fixing screws 51 are arranged on the upper nozzle outer sleeve gland 5, and the four fixing screws 51 are arranged on the upper nozzle outer sleeve gland 5 in a cross manner.

Through set up the fixed screw on the pressure cover of last mouth of a river, inside the fixed screw inserted the mouth of a river overcoat, can fix mouth of a river overcoat gland and the mouth of a river overcoat of going up. Through set up the transverse groove and insert the fixed screw bottom intercommunication at the mouth of a river on the mouth of a river jacket, conveniently clear up the fixed screw, prevent the deposition.

Specifically, the upper end of the upper nozzle type lining 3 is sleeved with an upper nozzle material containing sleeve 7, and the upper nozzle material containing sleeve 7 covers and presses the upper nozzle type lining 3 and the upper nozzle inner lining 6, so that scattering is prevented when refractory materials are poured into a pressing cavity, and construction safety is guaranteed.

The utility model discloses a work flow of mould:

when the mold is used for pressing the upper nozzle, firstly, all components of the mold except the upper nozzle mold cover are assembled, then refractory materials with required dosage are poured into a pressing cavity through a cavity between the upper nozzle material containing sleeve and the upper mold core, then the upper nozzle material containing sleeve and the upper mold core are taken down, the upper nozzle mold cover is sleeved on the lower mold core, the upper nozzle mold cover is pressed down by a press machine, and the refractory materials in the pressing cavity are pressed and molded to obtain the upper nozzle of the utility model; then the upper nozzle mould cover and the inner lining of the upper nozzle are taken down, and the pressed upper nozzle is ejected upwards through the upper nozzle mould top plate, thus finishing the first pressing work; after pressing, the die does not need to be dismantled and can be continuously used.

Each subassembly of this mould all independently sets up each other and splices and form, and is fixed good between each subassembly, but continuous use and need not to demolish after the installation and heavily adorn, if wherein certain subassembly appears damaging and can change to the holistic life of extension mould.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims

1. The utility model provides a water feeding port, includes water feeding port body (100), be provided with in water feeding port body (100) along vertical direction through-hole (110) that run through, the one end that water feeding port body (100) and upper slide are connected is provided with sunken (120), its characterized in that, sunken (120) end periphery of water feeding port body (100) is provided with retraction area (130).

2. The nozzle according to claim 1, wherein the retraction area (130) is set back by a distance of 2-5mm and the height of the retraction area (130) is 20-50mm.

3. A nozzle as claimed in claim 2, wherein the setback (130) is 3mm and the height of the setback (130) is 30mm.

4. A mold for pressing the upper nozzle according to any one of claims 1 to 3, comprising an upper nozzle core, wherein an upper nozzle mold base (2), an upper nozzle mold liner (3) and an upper nozzle mold cover (10) are sequentially sleeved on the periphery of the upper nozzle core from bottom to top, the mold is characterized in that the side wall of the top of the upper nozzle mold liner (3) is inwardly retracted to form a liner placing table (31), an upper nozzle liner (6) is movably placed on the liner placing table (31), the upper nozzle liner (6) is respectively closely attached to the inner wall of the top of the upper nozzle mold liner (3) and the outer wall of the upper nozzle mold cover (10), the width of the upper nozzle liner (6) is greater than the width of the inner recess of the liner placing table (31), and the upper nozzle mold base (2), the upper nozzle mold liner (3), the upper nozzle liner (6) and the upper nozzle mold cover (10) jointly enclose a closed pressing cavity outside the upper nozzle mold core.

5. Mould according to claim 4, characterized in that the upper nozzle lining (6) is 2-5mm wider than the lining placement table (31).

6. The mold according to claim 4, characterized in that the upper nozzle core comprises an upper core (9) and a lower core (8), the upper end and the lower end of the lower core (8) are respectively provided with an upper bulge (81) and a lower bulge (82), and the lower end of the upper core (9) is provided with a lower groove (91) matched with the upper bulge (81) of the lower core (8).

7. Mould according to claim 6, characterized in that the bottom of the upper nozzle bottom (2) is placed with an upper nozzle mould top plate (1), and the upper end of the upper nozzle mould top plate (1) is provided with an upper groove (11) matching with the lower protrusion (82) of the lower core (8).

8. The mold according to claim 4, characterized in that the outer periphery of the upper nozzle type lining (3) is respectively sleeved with an upper nozzle jacket (4) and an upper nozzle jacket gland (5) from bottom to top, the outer side wall of the bottom of the upper nozzle type lining (3) retracts inwards, the inner side wall of the bottom of the upper nozzle jacket protrudes outwards, and the upper nozzle jacket and the lower nozzle jacket are embedded with each other; the outer side wall of the top of the upper nozzle type lining (3) retracts inwards, and the upper nozzle jacket pressing cover (5) covers and presses the upper nozzle jacket (4) and the upper nozzle type lining (3).

9. The mold according to claim 8, characterized in that a plurality of fixing screws (51) are arranged on the upper nozzle jacket gland (5), a plurality of fixing screws (51) penetrate through the upper nozzle jacket gland (5) in the vertical direction and are inserted into the inner part of the upper nozzle jacket (4), and a transverse groove (41) communicated with the bottom of each fixing screw (51) is arranged on the upper nozzle jacket (4).

10. The mold according to claim 4, characterized in that a water feeding port material containing sleeve (7) is sleeved on the upper end of the water feeding port type liner (3), and the water feeding port material containing sleeve (7) covers and presses the water feeding port type liner (3) and the water feeding port liner (6).