CN218050314U - Tundish nozzle is with preventing leaking quick change mechanism - Google Patents

Abstract

The utility model relates to the technical field of continuous casting machines, in particular to a leakage-proof quick-change mechanism for a tundish nozzle, which comprises a turntable, jacks are uniformly distributed on the circumference of the turntable, the nozzle is connected in the jacks in a sliding way, the upper opening of the jack is provided with a conical surface, and the side surface of a horn mouth is butted on the conical surface; the rotary table is detachably connected with an installation base between the two jacks, the installation base is slidably connected with a top cover, and the bottom surface of the installation base is abutted to the upper plane of the water gap part; the utility model discloses can prevent that the molten steel from revealing, simultaneously under the state of not shutting down, the mouth of a river is changed in convenient, swiftly more, effectively improves processing stability and security.

Description

Tundish nozzle is with preventing leaking quick change mechanism

Technical Field

The utility model relates to a conticaster technical field, especially a tundish mouth of a river is with preventing leaking quick change mechanism.

Background

In the continuous casting operation, molten steel flows out from a water gap at the bottom of a tundish and is distributed into each crystallizer, a water gap for continuous casting has the effects of preventing secondary oxidation of the molten steel, splashing of the molten steel, adjusting the pouring speed of the molten steel, promoting floating of inclusions in the molten steel and the like, the water gap needs to be frequently replaced due to continuous erosion of the molten steel on the water gap, the release of the molten steel cannot be suspended in the process of replacing the water gap due to economic consideration, in the actual production, the molten steel is directly poured into the crystallizer in an open mode between the removal of an old water gap and the installation of a new water gap, and the molten steel without the protection of the water gap is very easy to splash to the periphery of equipment, so that serious safety accidents are caused.

In order to solve the problems, a patent with publication number CN205851867U discloses a tundish nozzle rotary quick-changing mechanism, which comprises a tundish, a nozzle to be changed, a blocking plate, a motor, a transmission rod and a rotating mechanism; according to the patent, a water gap, a blocking plate and a water gap to be changed are sequentially and uniformly distributed in a rotating mechanism at an included angle of 120 degrees, the rotating mechanism is controlled by a motor to rotate, the water gap below a tundish is quickly changed, and meanwhile, the blocking plate is arranged between the water gap and the water gap to be changed and used for preventing molten steel from leaking; however, the connecting parts are not arranged between the blocking plate and the water gap to be replaced, and molten steel still leaks out from the space between the water gap and the blocking plate, so that the effect of the blocking plate cannot be completely realized.

Therefore, the leakage-proof quick-change mechanism for the tundish nozzle is provided, which ensures that the nozzle on the tundish can be quickly changed in the continuous casting process and molten steel does not leak or splash, and is needed by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tundish mouth of a river is with preventing leaking quick change mechanism to when the mouth of a river is changed at the continuous casting in-process among the solution prior art, the molten steel is in the direct pouring state of unprotected, has the technical problem of potential safety hazard.

The utility model provides a technical scheme that its technical problem adopted is: a leakage-proof quick-change mechanism for a tundish nozzle is used for replacing a nozzle below a tundish, a water outlet is arranged at the bottom of the tundish and corresponds to one nozzle, and a bell mouth is arranged at the end part of the nozzle; the rotary table is arranged between the two jacks and is detachably connected with an installation base, a top cover is connected onto the installation base in a sliding mode, and the bottom surface of the installation base is abutted to the upper plane of the water gap portion.

Further, the turntable is located below the tundish, and the upper plane of the top cover abuts against the bottom surface of the tundish.

Furthermore, a fixed shaft is fixedly connected to the rotary table, and one end of the fixed shaft is fixedly connected to an output shaft of the motor.

Further, the fixed shaft is arranged coaxially with the turntable.

Furthermore, an inner hexagonal counter bore is formed in the mounting base, and the mounting base is in threaded connection with the rotary table.

Further, the taper of the conical surface is consistent with that of the bell mouth.

Furthermore, the installation base is provided with a sliding groove along the radial direction of the turntable, and the top cover is provided with a track.

Further, the track is connected in the spout slidable, and the spout matches with the track.

Further, the top cover is made of quartz.

The beneficial effects of the utility model are that:

the utility model distributes the circumference of the water gap on the turntable, utilizes the motor to rotate the turntable, realizes the replacement of the water gap, ensures the replacement of the water gap to be quicker by reducing the angle between the two water gaps, effectively reduces the leakage and the splashing of molten steel, and improves the safety and the portability of the replacement of the water gap; the utility model discloses at the in-process of changing the mouth of a river, utilize the outlet of top cap slip seal tundish bottom, prevent that the molten steel from revealing, compare with prior art, the utility model discloses can prevent that the molten steel from revealing, under the state of not shutting down simultaneously, can make things convenient for more, swiftly change the mouth of a river, effectively improve processing stability and security.

Drawings

Fig. 1 is a perspective view of the leakage-proof quick-change mechanism for a tundish nozzle of the present invention (without a tundish).

Fig. 2 is a schematic partial exploded view of fig. 1.

Fig. 3 is a plan view of the leakage-proof quick-change mechanism for a tundish nozzle of the present invention (without a tundish).

Fig. 4 isbase:Sub>A cross-sectional view taken alongbase:Sub>A-base:Sub>A in fig. 3.

The components in the drawings are numbered as follows: 10. a turntable; 11. a jack; 12. a fixed shaft; 13. a conical surface; 20. installing a base; 21. a top cover; 22. an inner hexagonal counter bore; 23. a chute; 24. a track; 30. a water gap; 31. a bell mouth; 41. a tundish; 42. and a water outlet.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Referring to fig. 1, fig. 2 and fig. 4, the utility model provides a tundish nozzle is with preventing leaking quick change mechanism for change the nozzle 30 of tundish 41 below, the bottom of tundish 41 is equipped with outlet 42, and an outlet 42 corresponds a nozzle 30, and the nozzle 30 tip is equipped with horn mouth 31, the utility model discloses a carousel 10, the edge circumference evenly distributed of carousel 10 has jack 11, nozzle 30 connects in jack 11.

Furthermore, a conical surface 13 is arranged at the upper opening of the insertion hole 11, and the side surface of the bell mouth 31 abuts against the conical surface 13; preferably, the taper of the tapered surface 13 corresponds to the taper of the flare 31.

In this embodiment, the turntable 10 is disposed below the tundish 41, the plurality of nozzles 30 are provided, molten steel in the tundish 41 is poured into the nozzles 30 through the drain 42, and the nozzles 30 prevent molten steel from splashing, thereby improving safety; meanwhile, a fixed shaft 12 is fixedly connected to the end surface of the rotary table 10 far away from the tundish 41, one end of the fixed shaft 12 is fixedly connected to an output shaft of a motor (not shown), and the rotary table 10 is driven to rotate by driving the motor, so that the water gap 30 is replaced. Preferably, the fixed shaft 12 is arranged coaxially with the turntable 10.

Molten steel still flows in the replacement process of the water gap on the traditional tundish, and because one time is needed for replacing a new water gap, the molten steel can be directly poured without any safety protection measures; the utility model discloses arrange a plurality of mouths of a river 30 circumference on carousel 10, through reducing the angle between two mouths of a river 30, make the change of mouth of a river 30 rapider, effectively reduce revealing, splashing of molten steel, improve the security and the portability that mouth of a river 30 changed.

Referring to fig. 2, 3 and 4, a mounting base 20 is detachably connected between the two insertion holes 11 on the turntable 10, a top cover 21 is slidably connected to the mounting base 20, and an upper plane of the top cover 21 abuts against a bottom surface of the tundish 41.

The utility model discloses changing the in-process at mouth of a river 30, utilizing top cap 21 to slide and seal the outlet 42 of middle package 41 bottom, preventing that the molten steel from revealing, improve processing stability and security.

Further, be equipped with hexagon socket head 22 on the installation base 20, installation base 20 utilizes retaining members such as bolt or screw to pass hexagon socket head 22 and with carousel 10 threaded connection, 20 bottom surfaces butt mouth of a river 30 parts of installation base go up the plane, the utility model discloses utilize installation base 20 to compress tightly mouth of a river 30, guarantee the stability in the mouth of a river 30 use.

Understandably, retaining members such as bolts or screws are positioned in the telescopic inner hexagonal counter bores 22, so that the stability of the top cover 21 is ensured, and meanwhile, the retaining members such as the bolts or screws are also ensured not to be corroded by high-temperature molten steel, thereby prolonging the service life of the utility model.

Furthermore, the mounting base 20 is provided with a sliding groove 23 along the radial direction of the turntable 10, the top cover 21 is provided with a track 24, the track 24 is slidably connected in the sliding groove 23, and the sliding groove 23 is matched with the track 24; preferably, the top cover 21 is made of quartz.

Understandably, the friction force between the sliding chute 23 and the rail 24 is utilized to ensure that the top cover 21 can be stably installed on the installation base 20, and when the upper surface of the top cover 21 is abraded, the top cover can be directly detached, so that the clamping steps are reduced, and the portability is improved.

The utility model utilizes the track 24 to connect the top cover 21 on the mounting base 20 in a sliding way, and the rotating direction of the turntable 10 is vertical to the sliding direction of the top cover 21, so as to ensure the stability of the top cover 21 in the switching process of the water gap 30; simultaneously by the wear-resisting, high temperature resistant of top cap 21 that quartzy was made, can prevent effectively that the molten steel from corroding, top cap 21 releasable connection can be convenient for change at any time on installation base 20, effectively improves the utility model discloses a practicality prevents wearing and tearing, further ensures that the molten steel does not reveal.

The utility model discloses a concrete operation as follows, step one: the method comprises the following steps of sequentially installing a plurality of water gaps 30 into insertion holes 11 in a rotary disc 10, installing an installation base 20 between the two insertion holes 11, penetrating locking pieces such as bolts or screws through hexagonal counter bores 22 in the installation base 20 and connecting the locking pieces to the rotary disc 10 in a threaded mode, connecting the installation base 20 and the rotary disc 10 in a threaded mode to form a whole, pressing the water gaps 30 tightly, and finally connecting a top cover 21 to the installation base 20 to complete installation.

Step two: will the utility model discloses install middle package 41 bottom, make a mouth of a river 30 correspond the outlet 42 of middle package 41 bottom, top cap 21 butt simultaneously the 41 bottom surfaces of middle package, on the fixed axle 12 fixed connection to motor output shaft on the carousel 10 again, start the motor, carousel 10 rotate, and a mouth of a river 30 rotates around fixed axle 12, is close to simultaneously outlet 42 is slided and is plugged up to outlet 42's top cap 21, rotates certain angle after, and another mouth of a river 30 is rotatory to outlet 42 below, outlet 42 is opened to top cap 21 simultaneously, and then has realized the change between a plurality of mouths of a river 30.

The utility model is arranged below the tundish 41, one water gap 30 corresponds to the water outlet 42 at the bottom of the tundish 41, and molten steel in the tundish 41 is poured into the water gap 30 through the water outlet 42, thereby preventing the molten steel from splashing and improving the safety; the water gap 30 is replaced by driving the motor to rotate the rotating disc 10, the replacement of the water gap 30 is quicker by reducing the angle between the two water gaps 30, the leakage and the splashing of molten steel are effectively reduced, and the replacement safety and the portability of the water gap 30 are improved; the utility model discloses changing the in-process at mouth of a river 30, utilizing top cap 21 to slide and seal the outlet 42 of middle package 41 bottom, preventing that the molten steel from revealing, improve processing stability and security.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (9)

1. The anti-leakage quick-change mechanism for the tundish nozzle is used for replacing the nozzle (30) below the tundish (41), the bottom of the tundish (41) is provided with a water outlet (42), one water outlet (42) corresponds to one nozzle (30), and the end part of the nozzle (30) is provided with a bell mouth (31), and is characterized by comprising a turntable (10), jacks (11) are uniformly distributed at the edge of the turntable (10) in the circumferential direction, the nozzle (30) is connected in the jacks (11), the upper opening of the jacks (11) is provided with a conical surface (13), and the side surface of the bell mouth (31) abuts against the conical surface (13); the rotary table (10) is positioned between the two jacks (11) and is detachably connected with an installation base (20), a top cover (21) is slidably connected onto the installation base (20), and the bottom surface of the installation base (20) is abutted to the upper plane of the water gap (30).

2. Leakproof quick-change mechanism for a tundish nozzle according to claim 1, characterized in that the turntable (10) is located below the tundish (41) and the upper flat surface of the top cover (21) abuts against the bottom surface of the tundish (41).

3. A leakproof quick-change mechanism for a tundish nozzle according to claim 1, wherein a fixed shaft (12) is fixedly connected to the rotary table (10), and one end of the fixed shaft (12) is fixedly connected to an output shaft of a motor.

4. A leakproof quick-change mechanism for a tundish nozzle according to claim 3, wherein the fixed shaft (12) is arranged coaxially with the rotary disc (10).

5. A leakproof quick-change mechanism for a tundish nozzle according to claim 1, wherein the mounting base (20) is provided with a hexagon socket head (22), and the mounting base (20) is screwed on the rotary table (10).

6. A leakproof quick-change mechanism for a tundish nozzle according to claim 1, characterised in that the taper of the tapered surface (13) corresponds to the taper of the bell mouth (31).

7. A leakproof quick-change mechanism for a tundish nozzle according to claim 1, wherein the mounting base (20) is provided with a runner (23) in the radial direction of the rotating disc (10), and the top cover (21) is provided with a track (24).

8. A leakproof quick-change mechanism for a tundish nozzle according to claim 7, wherein the rail (24) is slidably connected in a slide groove (23), the slide groove (23) being matched with the rail (24).

9. Leakage-preventing quick-change mechanism for a tundish nozzle according to claim 1, characterised in that the cap (21) is made of quartz.

Images