CN219357384U - High-speed board device and belted steel production line of leading to - Google Patents
High-speed board device and belted steel production line of leading to Download PDFInfo
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- CN219357384U CN219357384U CN202320241618.1U CN202320241618U CN219357384U CN 219357384 U CN219357384 U CN 219357384U CN 202320241618 U CN202320241618 U CN 202320241618U CN 219357384 U CN219357384 U CN 219357384U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to a high-speed plate passing device and a strip steel production line, which belong to the technical field of metal calendaring. According to the utility model, the low-pressure chamber with the internal air pressure smaller than the external ambient air pressure is arranged between the high-speed flying shears and the coiling machine of the strip steel continuous casting and rolling production line, so that the air flow resistance in the strip steel advancing process is reduced, the stability of the strip steel advancing process and the success rate of strip threading are improved, the product waste loss caused by production accidents is reduced, the metal yield is improved, and the production efficiency and the economic benefit of the production line are comprehensively improved.
Description
Technical Field
The utility model belongs to the technical field of metal calendaring, and relates to a high-speed plate passing device and a strip steel production line.
Background
Short-flow continuous casting and rolling is a technology which is successfully developed in the last 80 th century, is a revolutionary technology in the field of ferrous metallurgy after converter steelmaking and full continuous casting, and leads the development direction of the steel manufacturing technology. The successful development of the method realizes the organic combination of the continuous casting and the hot continuous rolling of the thin-specification casting blank, and is a great breakthrough of the near-net-shape manufacturing technology. The short-process continuous casting and rolling production technology is very beneficial to the construction of an energy-saving and environment-friendly society, and is used as the development trend of future ferrous metallurgy technology, and compared with the traditional hot continuous rolling, the short-process continuous casting and rolling technology has the outstanding advantage that the short-process continuous casting and rolling technology can be used for producing thin-specification strip steel which is difficult to produce by the traditional hot continuous rolling. The method is beneficial to the headless or semi-headless production process of the short-flow continuous casting and rolling technology, avoids the threading process with the highest failure rate during single block rolling of conventional hot continuous rolling, and greatly improves rolling stability compared with conventional hot continuous rolling.
When the short-process continuous casting and rolling is used for headless or semi-headless production, the strip steel is cooled to reach the target temperature through laminar cooling control after passing through a finishing mill group, sheared by a shearing machine, and then is led into different coiling machines to realize high-speed coiling, and the head of the next coiled strip steel is operated to a coiling machine to be coiled through the shearing machine for threading and coiling. Because the production line of continuous casting and rolling with short process is characterized by the production of ultrathin specification strip steel, and with the continuous breakthrough of high-pulling-speed continuous casting technology in recent years, the production speed of the rolling line is continuously accelerated, and the problems of strip steel vacation, stacking, winding and the like are very easy to occur in the process of running the strip steel with thin specification to a coiling machine after the strip steel is sheared by a shearing machine, the production line is stopped due to accidents, and the economic benefit and the productivity are reduced.
Patent documents such as CN102421545A, CN1239447A, CN101678420A, CN1671491a propose respective solutions to this problem, but the problem is not effectively solved from the application effect point of view. In addition, with the progress of production technology, continuous casting billet pulling speed and thickness break through continuously, and the downstream market uses hot instead of cold trend to make higher demands on ultrathin and ultrathin products, the thickness of strip steel is continuously thinned, the production line speed is continuously increased, the problems of head vacation, stacking and winding during strip threading are increasingly outstanding, and the production line faults are increased, so that the method becomes a big bottleneck for restricting the efficient production of ultrathin strip steel.
Disclosure of Invention
Therefore, the utility model aims to provide a high-speed plate passing device and a strip steel production line, so as to solve the problems of strip steel emptying, stacking and winding caused by the speed difference between the head and the subsequent part of strip steel during strip threading.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a board device is led to high speed, includes along belted steel direction of delivery setting up in order entry cavity, body cavity and export cavity, and the atmospheric pressure of each cavity along belted steel direction of delivery falls earlier then rises and is less than external environment atmospheric pressure.
Optionally, a sealing device is arranged at the position of each chamber corresponding to the strip steel, and the sealing device is provided with a narrow slit to allow the strip steel to pass through.
Optionally, each chamber is connected with an air pressure adjusting device.
Optionally, the length of the body chamber is greater than the length of the inlet chamber, the outlet chamber.
Alternatively, the inlet chamber is a chamber or is composed of a plurality of subchambers connected in sequence, and when the inlet chamber comprises a plurality of subchambers, the air pressure of each subchamber of the inlet chamber gradually decreases along the conveying direction of the strip steel.
Optionally, the body chamber is a chamber or is composed of a plurality of subchambers connected in sequence, and when the body chamber comprises a plurality of subchambers, the air pressure of each subchamber of the body chamber is the same along the conveying direction of the strip steel.
Alternatively, the outlet chamber is a chamber or is composed of a plurality of subchambers connected in sequence, and when the outlet chamber comprises a plurality of subchambers, the air pressure of each subchamber of the outlet chamber gradually rises along the conveying direction of the strip steel.
Optionally, the internal pressure of the inlet chamber and the outlet chamber is 10 5 Pa～10 2 Pa, internal pressure of the body chamber is 10 5 Pa～10 -2 Pa。
The strip steel production line comprises a slab rolling unit, a high-speed flying shear and a coiling unit which are sequentially arranged along the rolling direction, wherein the high-speed plate passing device is arranged between the high-speed flying shear and the coiling unit.
Optionally, the coiling unit comprises at least two coiling machines, and a high-speed plate passing device is arranged between the adjacent coiling machines.
The utility model has the beneficial effects that:
the low-pressure chamber with internal air pressure smaller than external environment air pressure is arranged between the high-speed flying shears and the coiling machine of the strip steel continuous casting and rolling production line, so that the problems of accidents such as strip steel vacation, stacking and winding caused by speed difference between the high-speed flying shears and the strip steel at the subsequent part due to head speed reduction under air flow resistance when the head of the strip steel sheared by the high-speed flying shears is warped or flies in the high-speed advancing process due to external factors when the strip steel is in coiling switching are solved. Therefore, the utility model can lead the head of the strip steel to be threaded rapidly and successfully, reduce the production accidents caused by the threading failure, further reduce the downtime of the production line and improve the productivity of the production line; the equipment damage caused by production accidents is reduced, and the service life of the equipment is prolonged; and the product waste loss caused by production accidents is reduced, so that the metal yield is improved, and the production efficiency and the economic benefit of the production line are comprehensively improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic layout of embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of a high-speed board passing device in embodiment 1;
fig. 3 is a schematic layout of embodiment 2 of the present utility model.
Reference numerals: the high-speed plate passing device 1, a rolling unit 2, a high-speed flying shear 3, a coiling unit 4, strip steel 5, an inlet chamber 101, a body chamber 102, an outlet chamber 103, a chamber 1001, a conveying roller way 1002, a sealing device 1003, an air pressure adjusting device 1004, a pinch roll 301 and a first coiling machine 401.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, a high-speed plate passing device 1 includes an inlet chamber 101, a body chamber 102 and an outlet chamber 103 sequentially arranged along a strip conveying direction, wherein the air pressure of each chamber along the strip conveying direction is firstly reduced and then increased and is lower than the external ambient air pressure.
According to the utility model, the low-pressure chamber with the internal air pressure smaller than the external ambient air pressure is arranged between the high-speed flying shears 3 and the coiling machine of the strip steel continuous casting and rolling production line, so that the obstruction to the strip steel 5 caused by the sum of acting forces such as air flow resistance, gravity, impact force and the like in the advancing process of the strip steel 5 is reduced, the stability and the threading success rate of the strip steel 5 in the advancing process are improved, the product waste loss caused by production accidents is reduced, the metal yield is improved, and the production efficiency and the economic benefit of the production line are comprehensively improved.
Optionally, a sealing device 1003 is arranged at the position of each chamber corresponding to the strip steel 5, and the sealing device 1003 is provided with a narrow slit to allow the strip steel 5 to pass through; each chamber is connected with an air pressure regulating device 1004; the inlet chamber 101 is a chamber or is composed of a plurality of sub-chambers connected in sequence, and when the inlet chamber 101 comprises a plurality of sub-chambers, the gas of each sub-chamber of the inlet chamber 101 is conveyed along the conveying direction of the strip steel 5Gradually reducing the pressure; the length of the body chamber 102 is greater than the lengths of the inlet chamber 101 and the outlet chamber 103; the body chamber 102 is a chamber or is composed of a plurality of subchambers which are connected in sequence, and when the body chamber 102 comprises a plurality of subchambers, the air pressure of each subchamber of the body chamber 102 is the same along the conveying direction of the strip steel 5; the outlet chamber 103 is a chamber or is composed of a plurality of subchambers which are connected in sequence, and when the outlet chamber 103 comprises a plurality of subchambers, the air pressure of each subchamber of the outlet chamber 103 gradually rises along the conveying direction of the strip steel 5; the internal pressure of the inlet chamber 101 and the outlet chamber 103 is 10 5 Pa～10 2 Pa, an internal pressure of the body chamber 102 of 10 5 Pa～10 -2 Pa。
The strip steel 5 production line comprises a slab rolling unit 2, a high-speed flying shear 3 and a coiling unit 4 which are sequentially arranged along the rolling direction, wherein the high-speed plate passing device 1 is arranged between the high-speed flying shear 3 and the coiling unit 4; when the coiler group 4 comprises at least two coilers, a high-speed plate passing device 1 is also arranged between adjacent coilers.
Example 1
As shown in fig. 1 and 2, a high-speed sheet passing device 1, applied to a continuous casting and rolling production line, is arranged between a high-speed flying shear 3 and a coiler 4, and is composed of an inlet chamber 101, a body chamber 102 and an outlet chamber 103. Each chamber of the high-speed board passing device 1 is respectively composed of a chamber body 1001, an internal conveying roller way 1002, a sealing device 1003 and an air pressure regulating device 1004. The positions of the inlet chamber 101 and the outlet chamber 103 corresponding to the strip steel are sealed by adopting a sealing device. The sealing device is provided with a narrow slit allowing the strip steel to pass through, and the horizontal position of the narrow slit is matched with the height of the conveying roller way. Wherein, each position barometric pressure relation is: the external ambient pressure is greater than the internal pressure of the inlet (outlet) chamber and is greater than or equal to the internal pressure of the body chamber. When the strip steel is sheared by the shearing machine 3, the strip head starts to penetrate the strip, and when the strip head enters the inlet chamber 101 of the high-speed plate passing device 1 from the outlet of the pinch roll 301 of the high-speed flying shear 3, the air pressure of the inlet chamber is far lower than the air pressure of the outside air, and the strip head cannot be unstable due to air flow disturbance; the tape head then enters the body cavity 102, the air pressure of the body cavity is in the air pressure area from low vacuum to high vacuum, and even if the tape head impacts the roller way due to the height difference of the roller way or the tape head warps due to the plate-shaped defect, the tape head flying phenomenon can not occur due to air flow resistance, the tape head in the vacuum environment can keep stable running, and finally the tape is successfully worn to the coiling machine.
Example 2
As shown in fig. 3, in embodiment 2, a high-speed sheet passing device is also provided between the coiler 401 and the coiler 402, as compared with embodiment 1.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.
Claims (10)
1. The utility model provides a high-speed logical board device which characterized in that: the device comprises an inlet chamber, a body chamber and an outlet chamber which are sequentially arranged along the strip steel conveying direction, wherein the air pressure of each chamber is firstly reduced and then increased along the strip steel conveying direction and is lower than the external environment air pressure.
2. A high-speed board passing device according to claim 1, wherein: the sealing device is arranged at the position of each cavity corresponding to the strip steel, and is provided with a narrow slit to allow the strip steel to pass through.
3. A high-speed board passing device according to claim 1, wherein: each cavity is connected with an air pressure adjusting device.
4. A high-speed board passing device according to claim 1, wherein: the length of the body chamber is longer than that of the inlet chamber and the outlet chamber.
5. A high-speed board passing device according to claim 1, wherein: the inlet chamber is a chamber or consists of a plurality of subchambers which are connected in sequence, and when the inlet chamber comprises a plurality of subchambers, the air pressure of each subchamber of the inlet chamber gradually decreases along the conveying direction of the strip steel.
6. A high-speed board passing device according to claim 1, wherein: the body cavity is a cavity or consists of a plurality of subchambers which are connected in sequence, and when the body cavity comprises a plurality of subchambers, the air pressure of each subchamber of the body cavity is the same along the strip steel conveying direction.
7. A high-speed board passing device according to claim 1, wherein: the outlet chamber is a chamber or consists of a plurality of subchambers which are connected in sequence, and when the outlet chamber comprises a plurality of subchambers, the air pressure of each subchamber of the outlet chamber gradually rises along the strip steel conveying direction.
8. A high-speed board passing device according to claim 1, wherein: the internal pressure of the inlet chamber and the outlet chamber is 10 5 Pa～10 2 Pa, internal pressure of the body chamber is 10 5 Pa～10 -2 Pa。
9. The utility model provides a belted steel production line, includes slab rolling unit, high-speed flying shear and the batch unit that sets up in order along the rolling direction, its characterized in that: a high-speed plate passing device according to any one of claims 1 to 8 is arranged between the high-speed flying shears and the coiling unit.
10. The strip steel production line according to claim 9, wherein: the coiling unit comprises at least two coiling machines, and a high-speed plate passing device is arranged between the adjacent coiling machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320241618.1U CN219357384U (en) | 2023-02-17 | 2023-02-17 | High-speed board device and belted steel production line of leading to |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320241618.1U CN219357384U (en) | 2023-02-17 | 2023-02-17 | High-speed board device and belted steel production line of leading to |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219357384U true CN219357384U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320241618.1U Active CN219357384U (en) | 2023-02-17 | 2023-02-17 | High-speed board device and belted steel production line of leading to |
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| Country | Link |
|---|---|
| CN (1) | CN219357384U (en) |
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- 2023-02-17 CN CN202320241618.1U patent/CN219357384U/en active Active
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