CN210547952U - High-efficient self-filtering continuous casting cooling nozzle - Google Patents
High-efficient self-filtering continuous casting cooling nozzle Download PDFInfo
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- CN210547952U CN210547952U CN201921569541.0U CN201921569541U CN210547952U CN 210547952 U CN210547952 U CN 210547952U CN 201921569541 U CN201921569541 U CN 201921569541U CN 210547952 U CN210547952 U CN 210547952U
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Abstract
The utility model relates to a square billet caster technical field just discloses a high-efficient self filtration continuous casting cooling nozzle. This high-efficient continuous casting cooling nozzle of filtering certainly, including the nozzle body, the top fixed mounting of nozzle body has the nozzle head, the inside fixed mounting of nozzle body has the hybrid chamber, equal movable mounting has first screw plug on the outer wall of nozzle body left and right sides, the inside of nozzle body just is located the hybrid chamber and is fixed mounting has the air connector under. The high-efficiency self-filtering continuous casting cooling nozzle adopts a structure that the nozzle is provided with an inner filtering grid and an outer filtering grid, so that impurities in a collecting pipe can be effectively filtered in the using process of the nozzle, and particles with the diameter of more than 2m are isolated outside the nozzle, so that the nozzle can reach a normal working state; meanwhile, the inner filtering grids are additionally arranged inside the nozzle, so that impurities which cannot be filtered by the primary filtering grids are filtered again for secondary filtration, and the problem of nozzle blockage prevention is thoroughly solved.
Description
Technical Field
The utility model relates to a square billet caster technical field specifically is a high-efficient self filtration continuous casting cooling nozzle.
Background
The production process of continuously casting high-temperature molten steel into a casting blank with a certain section shape and a certain size specification is called continuous casting, and equipment required for completing the process is called continuous casting complete equipment. The electromechanical liquid integration of the steel casting equipment, the continuous casting machine body equipment, the cutting area equipment and the dummy bar collecting and conveying equipment forms the core part equipment of continuous casting steel, which is conventionally called a continuous casting machine. The billet with a square cross section is produced by a continuous casting machine, and the continuous casting complete equipment for producing the billet is called a billet caster.
The conventional air-water atomizing nozzle used in the current billet continuous casting machine has poor angle stability, flow regulation range, water flow density distribution and striking force; the existing nozzle is greatly influenced by the pressure of water gas, and when the pressure is reduced to low pressure, the spray angle is reduced along with the change of the pressure, so that the improvement is necessary; in addition, the existing nozzle does not spray water at a low pulling speed, so that the back of a casting blank is seriously reheated, iron scales are increased, and the quality of the casting blank is seriously influenced. Therefore, we propose a high efficiency self-filtering continuous casting cooling nozzle.
SUMMERY OF THE UTILITY MODEL
The not enough to prior art, the utility model provides a high-efficient continuous casting cooling nozzle from filtering possesses advantages such as from filtering capability, high-efficient function, has solved the air water atomizing nozzle performance that current square billet continuous casting machine used poor, easily receive the influence of atmospheric pressure and cause the serious problem of casting blank rear portion rewarming easily.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a high-efficient is from filtering continuous casting cooling nozzle, includes the nozzle body, the top fixed mounting of nozzle body has the nozzle head, the inside fixed mounting of nozzle body has the hybrid chamber, equal movable mounting has first spiral shell plug on the outer wall of nozzle body left and right sides, the inside of nozzle body just is located the hybrid chamber and has the air connector under, the below of air connector just is located fixed mounting has first outer filtration grid on the bottom outer wall of nozzle body, fixed mounting has the outer filtration grid of second on the right side of first outer filtration grid just is located the bottom outer wall of nozzle body, the inside of nozzle body just is located the outer filtration grid of second and has interior filtration grid directly over fixed mounting, movable mounting has a plurality of second spiral shell plug on the right side outer wall of nozzle body and the top outer wall.
Further, the mixing chamber is located directly below the nozzle head.
Furthermore, the top end of the air joint is communicated with the mixing cavity, and the bottom end of the air joint is communicated with the first outer filtering grid.
Further, the second screw plugs are three in number, one is arranged on the outer wall of the right side of the nozzle body and above the first screw plug, and the other two are arranged on the outer wall of the top of the nozzle body and on the right side of the nozzle head.
The utility model has the advantages that:
1. the high-efficiency self-filtering continuous casting cooling nozzle adopts a structure that the nozzle is provided with an inner filtering grid and an outer filtering grid, so that impurities in a collecting pipe can be effectively filtered in the using process of the nozzle, and particles with the diameter of more than 2m are isolated outside the nozzle, so that the nozzle can reach a normal working state; meanwhile, the inner filtering grids are additionally arranged inside the nozzle, so that impurities which cannot be filtered by the primary filtering grids are filtered again for secondary filtration, and the problem of nozzle blockage prevention is thoroughly solved.
2. According to the high-efficiency self-filtering continuous casting cooling nozzle, the large channel design in the nozzle is adopted, the Laval multi-stage atomization principle, the partial diversion and the multi-stage atomization principle are adopted, so that liquid drops are atomized more fully, the nozzle can be used for secondary cooling of a billet continuous casting machine, the minimum flow of the nozzle can be controlled to be 0.5L/min, the regulation ratio of the maximum nozzle to the minimum nozzle can reach 15:1, the aperture of the nozzle can be controlled to be more than 3mm, and the phenomena of blockage, no water spraying in low water quantity and the like are effectively avoided; the method is very effective for continuously casting sensitive steel types which need small water amount control in special steel and high-carbon steel; meanwhile, the method is also very effective for steel grades requiring larger water amount, such as plain carbon steel and the like; the spray shape is full cone, flat and rectangular.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front and top view of the nozzle body of the present invention;
FIG. 3 is a schematic diagram of a mixing chamber according to the present invention in a front view and a top view;
fig. 4 is a schematic view of the nozzle head of the present invention in a disassembled configuration;
FIG. 5 is a schematic front and top view of a second outer filter grate according to the present invention;
fig. 6 is a front view and a top view of the inner filtering grid of the present invention.
Description of reference numerals: 1 nozzle body, 2 nozzle heads, 3 mixing chambers, 4 first screw plugs, 5 air connectors, 6 first outer filter grids, 7 second outer filter grids, 8 inner filter grids and 9 second screw plugs.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-6, a high-efficiency self-filtering continuous casting cooling nozzle comprises a nozzle body 1, a nozzle head 2 is fixedly installed at the top of the nozzle body 1, and the nozzle head 2 is integrally designed, so that the angle of the nozzle head 2 is always stable, and the change of the injection angle of the nozzle due to the collision phenomenon in the use process is avoided. The inside fixed mounting of nozzle body 1 has mixing chamber 3, mixing chamber 3 locates under the nozzle head 2, all movable mounting have first screwed plug 4 on the outer wall of the left and right sides of nozzle body 1, the inside of nozzle body 1 and locating under mixing chamber 3 fixed mounting have air connector 5, the below of air connector 5 and locating on the bottom outer wall of nozzle body 1 fixed mounting have first outer filter grating 6, the top of air connector 5 is linked with mixing chamber 3, the bottom of air connector 5 is linked with first outer filter grating 6, the right side of first outer filter grating 6 and locating on the bottom outer wall of nozzle body 1 fixed mounting have second outer filter grating 7, the inside of nozzle body 1 and locating directly over second outer filter grating 7 fixed mounting have inner filter grating 8, this high-efficient self-filtering continuous casting cooling nozzle is from taking stifled filter grating design, can be according to the water quality requirement of use, the aperture of the filtering grid is adjusted, so that large-particle suspended matters are blocked outside the water inlet of the nozzle, and the problem of nozzle blockage is effectively solved. A plurality of second screw plugs 9 are movably mounted on the outer wall of the right side and the outer wall of the top of the nozzle body 1, the number of the second screw plugs 9 is three, one of the second screw plugs is arranged on the outer wall of the right side of the nozzle body 1 and is positioned above the first screw plug 4, and the other two of the second screw plugs is arranged on the outer wall of the top of the nozzle body 1 and is positioned on the right side of the nozzle head 2. In the nozzle in the prior art, an atomizing point is arranged at the head of the nozzle, the nozzle can atomize fully under the conventional condition, but the condition of air sealing water can be caused under the condition of low water quantity, so that the casting blank is cooled unevenly, and even the phenomenon of no water spraying is caused. This high-efficient continuous casting cooling nozzle of filtering certainly has carried out the internal design under the unchangeable prerequisite of original mounting dimension, draws the form through air water, thereby makes the inside vacuum negative pressure that forms of nozzle body 1 effectual low water nozzle atomizing effect that reaches. The traditional aerial fog nozzle water hole aperture that uses now is about 1.5mm, and this high efficiency is from filtering continuous casting cooling nozzle's water hole aperture more than 3mm, just so can prevent effectively that the nozzle from blockking up.
When the nozzle is used, an air-water medium enters the nozzle body 1 through the outer filtering grille, an air passage enters the nozzle mixing cavity 3 through the first outer filtering grille 6 and the air connector 5, and then is mixed with the water passage through the Laval taper and is ejected through the nozzle head 2. The water path enters the nozzle body 1 through the second outer filtering grid 7, then passes through the inner filtering grid 8, enters the mixing cavity 3 through the pressure-preparing channel in the nozzle body 1, is mixed with the gas path and is sprayed out through the nozzle head 2. The high-efficiency self-filtering continuous casting cooling nozzle adopts a structure that the nozzle is provided with an inner filtering grid and an outer filtering grid, so that impurities in a collecting pipe can be effectively filtered in the using process of the nozzle, and particles with the diameter of more than 2m are isolated outside the nozzle, so that the nozzle can reach a normal working state; simultaneously, the inner filtering grids 8 are additionally arranged inside the nozzle, so that impurities which cannot be filtered by the primary filtering grids are filtered again for secondary filtration, and the problem of nozzle blockage prevention is thoroughly solved. The large channel inside the nozzle is designed, the Laval multi-stage atomization principle, the partial derivative flow division and the multi-stage atomization principle are adopted, so that liquid drops are more sufficiently atomized and can be used for secondary cooling of a billet continuous casting machine, the minimum flow of the nozzle can be controlled at 0.5L/min, the regulation ratio of the maximum nozzle to the minimum nozzle can reach 15:1, the aperture of the nozzle can be controlled at more than 3mm, and the phenomena of blockage, no water spraying and the like due to low water quantity are effectively avoided; the method is very effective for continuously casting sensitive steel types which need small water amount control in special steel and high-carbon steel; meanwhile, the method is also very effective for steel grades requiring larger water amount, such as plain carbon steel and the like; the spray shape is full cone, flat and rectangular.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A high-efficient self-filtering continuous casting cooling nozzle, includes nozzle body (1), its characterized in that: a nozzle head (2) is fixedly arranged at the top of the nozzle body (1), a mixing cavity (3) is fixedly arranged in the nozzle body (1), the outer walls of the left side and the right side of the nozzle body (1) are respectively and movably provided with a first screw plug (4), an air joint (5) is fixedly arranged in the nozzle body (1) and under the mixing cavity (3), a first outer filtering grid (6) is fixedly arranged below the air joint (5) and on the outer wall of the bottom of the nozzle body (1), a second outer filtering grid (7) is fixedly arranged on the right side of the first outer filtering grid (6) and on the outer wall of the bottom of the nozzle body (1), an inner filtering grid (8) is fixedly arranged in the nozzle body (1) and right above the second outer filtering grid (7), and a plurality of second screw plugs (9) are movably arranged on the outer wall of the right side and the outer wall of the top of the nozzle body (1).
2. The high efficiency self-filtering continuous casting cooling nozzle of claim 1, wherein: the mixing chamber (3) is located directly below the nozzle head (2).
3. The high efficiency self-filtering continuous casting cooling nozzle of claim 1, wherein: the top end of the air joint (5) is communicated with the mixing cavity (3), and the bottom end of the air joint (5) is communicated with the first outer filtering grid (6).
4. The high efficiency self-filtering continuous casting cooling nozzle of claim 1, wherein: the number of the second screw plugs (9) is three, one is arranged on the outer wall of the right side of the nozzle body (1) and above the first screw plug (4), and the other two is arranged on the outer wall of the top of the nozzle body (1) and on the right side of the nozzle head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569541.0U CN210547952U (en) | 2019-09-20 | 2019-09-20 | High-efficient self-filtering continuous casting cooling nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569541.0U CN210547952U (en) | 2019-09-20 | 2019-09-20 | High-efficient self-filtering continuous casting cooling nozzle |
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| CN210547952U true CN210547952U (en) | 2020-05-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974751A (en) * | 2021-02-05 | 2021-06-18 | 北京中冶冶金设备制造有限公司 | Nozzle body with quick blowdown function |
| CN114309512A (en) * | 2021-12-31 | 2022-04-12 | 扬州江冶喷雾系统有限公司 | Aerosol mixing nozzle with changeable spraying angle |
| CN115245880A (en) * | 2021-04-28 | 2022-10-28 | 北京中冶冶金设备制造有限公司 | Double-medium high-definition nozzle |
-
2019
- 2019-09-20 CN CN201921569541.0U patent/CN210547952U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112974751A (en) * | 2021-02-05 | 2021-06-18 | 北京中冶冶金设备制造有限公司 | Nozzle body with quick blowdown function |
| CN112974751B (en) * | 2021-02-05 | 2023-02-28 | 北京中冶冶金设备制造有限公司 | Nozzle body with quick blowdown function |
| CN115245880A (en) * | 2021-04-28 | 2022-10-28 | 北京中冶冶金设备制造有限公司 | Double-medium high-definition nozzle |
| CN115245880B (en) * | 2021-04-28 | 2023-12-05 | 北京中冶冶金设备制造有限公司 | Double-medium high-definition nozzle |
| CN114309512A (en) * | 2021-12-31 | 2022-04-12 | 扬州江冶喷雾系统有限公司 | Aerosol mixing nozzle with changeable spraying angle |
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