CN212419622U - Lower nozzle cooling device of continuous casting machine tundish - Google Patents
Lower nozzle cooling device of continuous casting machine tundish Download PDFInfo
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- CN212419622U CN212419622U CN202020664909.8U CN202020664909U CN212419622U CN 212419622 U CN212419622 U CN 212419622U CN 202020664909 U CN202020664909 U CN 202020664909U CN 212419622 U CN212419622 U CN 212419622U
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- tundish
- pipeline
- cooling device
- valve
- continuous casting
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Abstract
The utility model discloses a lower mouth of a river cooling device of package in middle of conticaster, include: a tundish; the water outlet is arranged on the tundish; a first pipe disposed on the tundish; the air supply device is arranged at one end of the first pipeline; a second conduit disposed on the first conduit, wherein an outlet end of the second conduit faces the drain; the valve is arranged on the interface of the first pipeline and the second pipeline, and the invention can achieve the effect of cooling and prolong the service life.
Description
Technical Field
The utility model belongs to the technical field of metallurgical industry continuous casting equipment, concretely relates to lower mouth of a river cooling device of package in middle of conticaster.
Background
The cooling research of the tundish water outlet of the continuous casting machine used in the existing continuous casting steel production draws attention, and the cooling research of the tundish water outlet of the continuous casting machine used in the existing continuous casting steel production becomes a key link for controlling the quality of a casting blank in the continuous casting production by reducing the superheat degree of molten steel at the tundish water outlet, namely controlling the cooling temperature at the continuous casting tundish water outlet, because the proper pouring temperature can ensure the quality of the casting blank in the continuous casting production. The existing cooling type tundish water outlet is made of copper alloy, and has the defects of harsh production conditions, high production cost and incapability of being used and popularized in actual production, while the common cooling type continuous casting tundish water outlet can not adjust and reduce the superheat degree of molten steel, thereby influencing the quality and the yield of casting blanks in the continuous casting production process and greatly increasing the energy consumption and the production cost.
The baking temperature of the tundish in production reaches above 600 ℃ and above 800 ℃ in the using process, so that the local temperatures of the tundish mechanism and the lower nozzle are too high and reach above 450 ℃, the service life of the lower nozzle is influenced, and the tundish is forced to be off-line. The tundish lower nozzle is missing the cooling device, and once the nozzle temperature is high, the influence is that the service life of the tundish is shortened, so that the unplanned shutdown is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lower mouth of a river cooling device of package in middle of conticaster, lower mouth of a river cooling device is through setting up air supply arrangement, with the first pipeline that air supply arrangement connects, and with the second pipeline of first pipe connection, and the one end export orientation of second pipeline department of water under the package in the middle of takes away through the air flow the temperature at the mouth of a river under the package in the middle of.
In order to solve the technical problem, the utility model provides a lower mouth of a river cooling device of package in middle of conticaster, lower mouth of a river cooling device includes:
a tundish;
the water outlet is arranged on the tundish;
a first pipe disposed on the tundish;
the air supply device is arranged at one end of the first pipeline;
a second conduit disposed on the first conduit, wherein an outlet end of the second conduit faces the drain;
the valve is arranged on the interface of the first pipeline and the second pipeline;
in an embodiment of the present invention, the lower nozzle cooling device is connected to the tundish at one end and to the crystallizer at the other end.
In an embodiment of the present invention, the second pipe is a metal hose or a rubber hose.
In an embodiment of the present invention, the valve is connected between the first pipe and the second pipe through a screw or a flange.
In an embodiment of the present invention, the valve is a ball valve.
The utility model provides an in one embodiment of lower mouth of a river cooling device, the ball valve is one of manual ball valve, pneumatic ball valve or electronic ball valve.
In an embodiment of the present invention, the first pipe is provided with an air inlet and a plurality of air outlets.
In an embodiment of the present invention, the air supply device is connected to the air inlet.
In an embodiment of the present invention, the second pipe is connected to the air outlet.
In an embodiment of the present invention, the air supply device is an air compressor.
The utility model provides a lower mouth of a river cooling device of package in middle of conticaster, through the first pipeline that sets up on the middle package, with the second pipeline that first pipeline one end is connected, and with the air supply arrangement that the first pipeline other end is connected, and the one end exit orientation of second pipeline the mouth of a river department in middle package, effect through air supply arrangement, and access to mouth of a river department in middle package takes away through the flow of air the surface temperature at mouth of a river under the middle package to reach refrigerated effect.
Drawings
In order to more clearly illustrate the technical solution of the present embodiment, the drawings used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model provides a lower mouth of a river cooling device schematic structure of package in middle of conticaster.
Fig. 2 is a schematic view of a tundish structure according to the present invention.
Fig. 3 is the utility model provides a tundish nozzle structure sketch map.
Fig. 4 is the schematic view of the valve structure in the drain cooling device of the tundish of the continuous casting machine of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
As shown in figure 1, the utility model discloses in propose a lower mouth of a river cooling device of conticaster middle package, through setting up first pipeline and second pipeline to utilize the air flow to take away the surface temperature of mouth of a river under the middle package, thereby make the temperature of mouth of a river under the middle package control, increase of service life, and improve molten steel quality.
As shown in fig. 1, the utility model provides a lower mouth of a river cooling device of package in middle of conticaster, cooling device includes: the device comprises a tundish 1, a lower water gap 2, a first pipeline 3, a second pipeline 4, a valve 5 and an air supply device.
As shown in fig. 1, in the present embodiment, one end of the drain 2 is connected to the tundish 1, and the other end of the drain is connected to the mold. In this embodiment, a conical protruding circular truncated cone is arranged on the bottom surface of the tundish 1, and the upper end of the drain 2 is arranged in a conical shape and is in fit contact with the conical protruding circular truncated cone arranged on the bottom surface of the tundish 1, so that guiding and sealing effects are achieved, and molten steel is prevented from splashing.
As shown in fig. 2, in the present embodiment, the continuous casting tundish 1 includes a shell 11 made of steel plate, a lining is disposed in the shell 11, the lining is sequentially provided with a heat insulation layer 12, a permanent layer 13 and a working layer 14 from outside to inside, the working layer 14 is made of an alkaline coating layer, the permanent layer 13 is built by high-alumina composite bricks, the permanent layer 13 is sequentially provided with a light heat insulation layer 131 and a dense working layer 132 from outside to inside, wherein the dense working layer 132 is high-alumina, and the light heat insulation layer 131 is made of corundum hollow spheres as aggregates; the heat insulation layer 12 is made of corundum hollow spheres as aggregate castable. In some embodiments, the working layer 14 is made of magnesium dry vibration material, the permanent layer 13 is formed by gradient casting, the permanent layer 13 is sequentially provided with a light thermal insulation layer 131 and a compact working layer 132 from outside to inside, wherein the compact working layer 132 is formed by casting mullite casting material, and the light thermal insulation layer 131 is formed by casting light casting material with corundum hollow spheres as aggregate; the heat insulation layer 12 is formed by pouring a light castable with alumina hollow spheres, magnesium aluminum hollow spheres, aluminum calcium hollow spheres, corundum hollow spheres, magnesium aluminum calcium hollow spheres, light high aluminum particles or light stone particle mixture as aggregate. In some embodiments, the working layer 14 is made of dry vibrating material, and the permanent layer 13 is made of dense high-alumina casting material; the heat insulation layer 12 is formed by pouring light high-alumina particles as aggregate high-alumina.
As shown in fig. 3, in the present embodiment, the tundish nozzle includes a sheet iron outer sleeve 21, an outer protective layer 22, a second insulating layer 23, a refractory cement layer 24, a first insulating layer 25, and a sintered zirconia inner core 26; the sintered zirconia core 26 is located on the inside; the first heat-insulating layer 25 is attached to the outer side of the sintered zirconia inner core 26; the refractory cement layer 24 is attached to the outer side of the first heat-preservation layer 25; the second insulating layer 23 is attached to the outer side of the refractory cement layer 24; the outer protective layer 22 is attached to the outer side of the second insulating layer 23; the iron sheet jacket 21 is attached to the outside of the outer protective layer 22. The thickness of the first heat preservation layer 25 or the second heat preservation layer 23 is 7 mm-23 mm.
As shown in fig. 1, in this embodiment, the first pipe 3 is disposed on the tundish 1, a pillar extends from the tundish 1 and is fixedly connected to the first pipe 3, and in this embodiment, the first pipe 3 is welded to the pillar. In some embodiments, the first conduit 3 is connected to the strut by flanges or bolts.
As shown in fig. 1, in this embodiment, an air supply device is connected to one end of the first pipeline 3, the air supply device is connected to the first pipeline 3 through a screw thread, and a sealing ring is disposed at a joint of the air supply device and the first pipeline 3, so as to prevent air leakage during air circulation, achieve a sealing effect, and improve a cooling effect. In this embodiment, the air blowing device is provided as an air compression device.
As shown in fig. 1, in the present embodiment, the other end of the first pipe 3 is connected to the second pipe 4, and a valve 5 is connected between the first pipe 3 and the second pipe 4, and the valve 5 is screwed between the first pipe 3 and the second pipe 4.
As shown in fig. 1, in the present embodiment, the valve 5 is configured as a ball valve, and in some embodiments, the valve 5 is configured as one of a manual ball valve, a pneumatic ball valve or an electric ball valve. In this embodiment, the valve may further be connected between the first pipeline 3 and the second pipeline 4 through a flange, and in some embodiments, a sealing ring is disposed at a connection position between the valve 5 and the first pipeline 3 and the second pipeline 4, so as to prevent an air leakage phenomenon during an air circulation process, and achieve a sealing effect.
As shown in fig. 1, in this embodiment, one end of the second pipe 4 is connected to the first pipe 3, and the other end faces the drain 2, and the compressed air flows out through the second pipe 4, passes through the surface of the drain 2, and takes away the surface temperature of the drain 2 through air flow, thereby reducing the temperature of the drain 2.
As shown in fig. 1, in some embodiments, the first pipeline 3 is provided with an air inlet connected to the air supply device and a plurality of air outlets respectively connected to a plurality of second pipelines 4, and the other ends of the plurality of second pipelines 4 face different lower water openings respectively, or face the same lower water opening with a plurality of second pipelines 4, so as to increase the cooling effect.
As shown in fig. 4, in the present embodiment, the valve 5 includes: a main valve body 51, a sub valve body 52, a ball 53, a main valve seat 54, a sub valve seat 55, a seal elastic member 56, a bolt 57, a valve stem 58, a first bearing 591, a second bearing 592, and a guide bearing 593.
As shown in fig. 4, in the present embodiment, the sub valve body 52 is connected to one side of the main valve body 51, the main valve body 51 and the sub valve body 52 are connected to form a receiving cavity, the ball 53 is located in the receiving cavity, the valve rod 58 is rotatably embedded in the main valve body 51, and the valve rod 58 is connected to the top of the ball 53. The main valve seat 54 is pressed between the main valve body 51 and the ball 53, the sub valve seat 55 is connected to the sub valve body 52, the sub valve seat 55 is located between the sub valve body 52 and the ball 53, the ball 53 is pressed on the sub valve seat 55, and the sealing elastic element 56 is pressed between the main valve seat 54 and the main valve body 51.
In this embodiment, as shown in fig. 4, the main valve seat 54, the sub valve seat 55, and the sealing elastic element 56 cooperate with the main valve body 51, the sub valve body 52, and the ball 53 to ensure that the gas in the pipeline can only flow through the flow passage in the valve.
As shown in fig. 4, the main valve body 51 and the sub valve body 52 are fixedly connected by a bolt 57, the first bearing 591 is sleeved on the valve rod 58 and fixed on the valve rod 58, the outer circumferential surface of the first bearing 591 contacts with the main valve body 51, the upper end surface of the first bearing 591 abuts against the main valve body 51, the guide bearing 593 is fixed on the valve rod 58, and the inner circumferential surface of the guide bearing 593 contacts with the valve rod 58.
As shown in fig. 4, in the present embodiment, when the valve rod 58 rotates in the main valve body 51, it is required to ensure that the valve rod 58 can smoothly rotate, and at the same time, ensure that the valve rod 58 has high position precision, so as to prevent the valve rod 58 from shaking to cause valve leakage.
As shown in fig. 4, in the present embodiment, the first bearing 591 and the guide bearing 593 position the upper and lower positions of the valve rod 58, so as to improve the positioning accuracy of the valve rod 58 and prevent the valve rod 58 from shaking in the main valve body 51. Meanwhile, the upper end surface of the first bearing 591 abuts against the main valve body 51, so that the main valve body 51 can be ensured to perform an axial limiting function on the first bearing 591, and further the valve rod 58 is axially limited.
As shown in fig. 4, in the present embodiment, the valve 5 further includes a second bearing 592, the second bearing 592 is sleeved on the valve rod 58 and fixed on the valve rod 58, an upper end surface of the second bearing 592 contacts with a lower end surface of the guide bearing 593, and the guide bearing 593 can limit the position of the second bearing 592, so as to further limit the axial position of the valve rod 58 and prevent the valve rod 58 from moving axially.
As shown in fig. 1, in the present embodiment, the down nozzle 2 of the tundish 1 is cooled by providing a blower, a first pipe 3, a second pipe 4 and a valve 5. The air supply device is connected to one end of the first pipeline 3, the other end of the first pipeline 3 is connected to the second pipeline 5, the other end of the second pipeline 5 faces the lower water gap 2, a valve 5 is arranged between the first pipeline 3 and the second pipeline 4, and the opening and closing of the valve 5 are controlled to control the circulation of air, in this embodiment, the working process of the cooling device is as follows: and opening the air supply device, wherein air flows out from the second pipeline 4 towards one end of the lower water gap through the first pipeline 3 and the second pipeline 4 and passes through the surface of the lower water gap 2, so that the surface temperature of the lower water gap 2 is taken away, and the purpose of cooling the lower water gap is achieved.
The utility model provides a lower mouth of a river cooling device of package in middle of conticaster, through the first pipeline that sets up on the middle package, with the second pipeline that first pipeline one end is connected, and with air supply arrangement that the first pipeline other end is connected, and the one end exit orientation of second pipeline the mouth of a river department in middle package, through air supply arrangement's effect, make the air be in first pipeline with circulate in the second pipeline, and access to mouth of a river in middle package, and pass through first pipeline with the circulation of the valve regulating air that second pipeline department set up, take away through the flow of air the surface temperature at mouth of a river under the middle package to reach refrigerated effect.
The above description is only a preferred embodiment of the present application and the explanation of the technical principle used, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (10)
1. The utility model provides a lower mouth of a river cooling device of conticaster tundish which characterized in that includes:
a tundish;
the water outlet is arranged on the tundish;
a first pipe disposed on the tundish;
the air supply device is arranged at one end of the first pipeline;
a second conduit disposed on the first conduit, wherein an outlet end of the second conduit faces the drain;
and the valve is arranged on the interface of the first pipeline and the second pipeline.
2. The apparatus as claimed in claim 1, wherein the drain is connected to the tundish at one end and the crystallizer at the other end.
3. The drain cooling device of the tundish of the continuous casting machine according to claim 1, wherein the second pipeline is a metal hose or a rubber tube.
4. The drain cooling device of the tundish of the continuous casting machine according to claim 1, wherein the valve is connected between the first pipe and the second pipe by a screw thread or a flange.
5. The apparatus as claimed in claim 1, wherein the valve is a ball valve.
6. The drain cooling device of the tundish of the continuous casting machine according to claim 5, wherein the ball valve is one of a manual ball valve, a pneumatic ball valve or an electric ball valve.
7. The drain cooling device of the tundish of the continuous casting machine according to claim 1, wherein the first pipe is provided with an air inlet and a plurality of air outlets.
8. The apparatus as claimed in claim 7, wherein the blower is connected to the air inlet.
9. The apparatus as claimed in claim 7, wherein the second conduit is connected to the outlet.
10. The drain cooling device of the tundish of the continuous casting machine according to claim 1, wherein the air supply device is an air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020664909.8U CN212419622U (en) | 2020-04-27 | 2020-04-27 | Lower nozzle cooling device of continuous casting machine tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020664909.8U CN212419622U (en) | 2020-04-27 | 2020-04-27 | Lower nozzle cooling device of continuous casting machine tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212419622U true CN212419622U (en) | 2021-01-29 |
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ID=74294998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020664909.8U Active CN212419622U (en) | 2020-04-27 | 2020-04-27 | Lower nozzle cooling device of continuous casting machine tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212419622U (en) |
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2020
- 2020-04-27 CN CN202020664909.8U patent/CN212419622U/en active Active
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