CN111744986A - Deep bending dust removal device and method in strip steel flattening process - Google Patents
Deep bending dust removal device and method in strip steel flattening process Download PDFInfo
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- CN111744986A CN111744986A CN202010622327.8A CN202010622327A CN111744986A CN 111744986 A CN111744986 A CN 111744986A CN 202010622327 A CN202010622327 A CN 202010622327A CN 111744986 A CN111744986 A CN 111744986A
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- deep
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/16—Unwinding or uncoiling
- B21C47/18—Unwinding or uncoiling from reels or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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Abstract
The invention belongs to the field of strip steel finishing, and relates to a deep bending dust removal device and method in a strip steel uncoiling process. The iron scale attached to the surface of the strip steel due to deep bending is easy to peel off, and the original iron scale dust mixed between steel coil layers can be lifted in the high-speed uncoiling process. The deep bending roll which is closest to the strip steel and the dust thereof is provided with a dust flow direction opening, a catching and sucking cover and a dust channel leading to a dust removal and filtration system, so that the regional dust is guaranteed to be collected to the greatest extent. The method can obviously reduce the concentration of iron dust in the area of the strip steel flattening deep bending section in a workshop site, and can also greatly improve the surface cleanliness and the surface quality of the strip steel.
Description
Technical Field
The invention belongs to the field of strip steel finishing, and relates to a deep bending dust removal device and method in a strip steel flattening process.
Background
The strip steel finishing process comprises the processes of uncoiling, clamping and conveying of a hot-rolled strip coil, straightening and subsequent finishing (such as flattening, transverse cutting, longitudinal cutting, acid washing and the like), and deep bending rolls are required to be used in the uncoiling section to improve the surface quality of the strip steel and improve the operation stability. And the surfaces of the hot-rolled strip steel and the steel coil layers have iron scales and iron scale dust with different degrees, and a large amount of iron scale dust is generated in the area in the deep bending process. The slope of strip steel between the coiling drum of the uncoiling machine and the inlet deflection roller can be continuously changed along with the reduction of the coil diameter in the uncoiling process, the deep bending roller has to synchronously press down with the changed slope due to the production of the deep bending function, so that the design of dust catching, absorbing and selecting in the region is very difficult, and the region iron dust cannot be effectively collected by various dust removing cover modes once, so that the situation that a large amount of manpower and material resources are input but the practical problem cannot be solved is caused.
Disclosure of Invention
In view of the above, the present invention provides a deep-bending dust removal device and method in a strip steel flattening process, which can effectively collect oxidized strip-lifting dust on the surface and area of a strip steel at a flattened deep-bending section, improve the surface quality of the strip steel, and improve the quality of an on-site environment.
In order to achieve the purpose, the invention provides the following technical scheme:
a deep-bending dust removal device in a strip steel flattening process is characterized by comprising a deep-bending roll (12), a deep-bending support roll (2), a deep-bending roll swing arm (3), a dust catching and absorbing cover (10), a deep-bending roll follow-up cylinder (9) and a dust removal hose (8); and the accessory facilities are used for the operation of the strip steel and the in-place operation of the deep bending roll and comprise an uncoiler winding drum (1), an inlet deflection roll (11), a deep bending roll transverse moving trolley (7) and a trolley track beam (6); the deep bending roll (12) is positioned above the uncoiler drum (1) and is pressed against a strip steel section between the uncoiler drum (1) and the inlet deflection roll (11) in the uncoiling process; the deep bending roll (12) is connected with a deep bending roll transverse trolley (7) through a deep bending roll swinging arm (3), and the base of a deep bending roll follow-up cylinder (9) is arranged on the frame of the deep bending roll transverse trolley (7) and synchronously and horizontally moves with the deep bending roll transverse trolley (7); the deep-bending roll (12) supports the roll body direction through the deep-bending support roll (2) to meet the requirement of transverse rigidity, and the dust catching and absorbing cover (10) is fixed on the base of the deep-bending support roll (2) and is arranged along the axial direction of the roll body; the dust removal hose (8) is arranged on the deep bending roll transverse trolley (7), and the dust removal hose (8) is connected with a flange opening of the deep bending roll swing arm (3).
Optionally, the deep bending roller traversing trolley (7) is installed in the trolley track beam (6) and moves horizontally through the trolley traversing cylinder (5).
Optionally, the trolley track beam (6) is supported by the track beam column (4) and is mounted above the uncoiler drum (1).
Optionally, the deep-bending supporting roller (2) is of a multi-section structure.
Optionally, a gap of about 50mm is reserved between each section of the roll body of the deep-bending support roll (2), and iron sheet dust at the deep-bending section of the strip steel is collected through the gap and the dust catching and sucking cover (10).
Optionally, the dust catching and sucking cover (10) is tightly wrapped on the outer side of the deep-bending support roller (2) in length.
Optionally, the collected iron sheet dust reaches the dust removal hose (8) through a cavity channel of the deep bending roll swing arm (3), and then reaches the dust removal system through a middle air pipe of the dust removal system to be filtered and discharged.
A deep bending dust removal method in a strip steel decoiling process is characterized in that in the decoiling process of strip steel, deep bending rollers horizontally move to corresponding positions respectively according to the diameter of a raw material coil and are pressed on a strip steel section between a reel of a decoiler and an inlet deflection roller, and a certain degree of reverse bending rate is kept; the deep bending roller is pressed down along with the reduction of the coil diameter of the steel coil; a dust flow direction opening, a catching and sucking cover and a dust channel leading to a dust removal and filtration system are arranged at the deep bending roll close to the running strip steel and the dust raising area.
Optionally, the horizontal position of the deep bending roller traversing trolley is gradually close to the inlet deflection roller along with the reduction of the diameter of the raw material coil.
The invention has the beneficial effects that:
because of the surface quality of finished products and the requirement of stable operation process of a unit, a deep bending roller of strip steel needs to follow the pressing action in the whole process in the flattening process, iron scales on the surface of the strip steel can automatically fall off in the stretching and bending processes, iron scale dust between steel coil layers can also shake and raise in the high-speed uncoiling process, and if the iron scales are not collected and treated, the problems of the quality defect of the pressed surface of the iron scales on the surface of the strip steel and the environmental quality that the concentration of field dust exceeds the standard can be caused. The invention has the advantages that: (1) a method of arranging a dust catching and sucking cover in the area with the largest generation amount of iron sheet dust is implemented; (2) the multi-section deep-bending support roller is innovatively designed, so that the dust flow direction is fully increased, and the dust collection efficiency is guaranteed; (3) dust removal and collection covers are arranged on the deep bending roll and a base of a supporting roll of the deep bending roll, so that continuous following of a suction port and band steel at a deep bending section is ensured, and dust in the area is covered to the maximum extent; (4) the through-cavity type deep bending roll swing arm is designed to serve as a dust flow direction channel, the reaching distance of dust to a processing system is shortened to the maximum extent, and the dust removal and collection efficiency is improved. The method and the device remarkably improve the dust collection efficiency of the open-flat deep-bending section and greatly improve the surface quality of the strip steel.
Additional advantages, objects, and features of the invention 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 invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic plan view of the present invention
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a view from the direction B of FIG. 1;
FIG. 4 is a schematic view showing an initial position of the deep bending roll traverse carriage in each embodiment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood 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 numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, the reference numbers in the figures refer to the following elements: the device comprises an uncoiler winding drum 1, a deep bending support roller 2, a deep bending swing arm 3, a track beam upright post 4, a trolley transverse cylinder 5, a trolley track beam 6, a deep bending roller transverse trolley 7, a dust removal hose 8, a deep bending roller follow-up cylinder 9, a dust catching and absorbing cover 10, an inlet deflection roller 11 and a deep bending roller 12.
The invention provides a deep-bending dust removal device in a strip steel flattening process, which is characterized by comprising a deep-bending roll 12, a deep-bending support roll 2, a deep-bending roll swing arm 3, a dust catching and absorbing cover 10, a deep-bending roll follow-up cylinder 9 and a dust removal hose 8; and the accessory facilities used for the operation of the strip steel and the in-place operation of the deep bending roll comprise an uncoiler winding drum 1, an inlet deflection roll 11, a deep bending roll transverse moving trolley 7 and a trolley track beam 6; the deep bending roll 12 is positioned above the uncoiler drum 1 and is pressed against a strip steel section between the uncoiler drum 1 and the inlet deflection roll 11 in the uncoiling process; the deep bending roll 12 is connected with a deep bending roll traversing trolley 7 through a deep bending roll swinging arm 3, and a base of a deep bending roll follow-up cylinder 9 is arranged on a frame of the deep bending roll traversing trolley 7 and moves horizontally synchronously with the deep bending roll traversing trolley 7; the deep-bending roll 12 supports the roll body direction through the deep-bending support roll 2 to meet the requirement of transverse rigidity, and the dust catching and absorbing cover 10 is fixed on the base of the deep-bending support roll 2 and is arranged along the axial direction of the roll body; the dust removal hose 8 is arranged on the deep bending roll transverse trolley 7, and the dust removal hose 8 is connected with a flange opening of the deep bending roll swing arm 3.
Optionally, the deep bending roll traversing trolley 7 is installed in the trolley track beam 6 and horizontally moves through the trolley traversing cylinder 5; the trolley track beam 6 is supported by the track beam upright post 4 and is arranged above the uncoiler drum 1; the deep-bending supporting roller 2 is in a multi-section structure; a gap of about 50mm is reserved between each section of the roll body of the deep bending support roll 2, and iron sheet dust at the deep bending section of the strip steel is continuously and fully collected through the gap and the dust catching and absorbing cover 10 until the tail of the strip steel is completely released; the dust catching and sucking cover 10 is tightly wrapped outside the deep-bending supporting roller 2 in length, so that the area of a dust area is covered to the maximum extent and the dust catching and sucking effect is improved; the collected iron sheet dust reaches a dust removal hose 8 through a cavity channel of the deep bending roll swing arm 3, and then reaches a dust removal system through a middle air pipe of the dust removal system to be filtered and discharged.
As shown in fig. 1 and 2, the current strip finishing line has the processes of coil uncoiling, inlet pinch, and subsequent finishing processes (such as leveling, transverse cutting, longitudinal cutting, acid pickling, etc.). The uncoiling and clamping area is provided with equipment comprising an uncoiler drum, an inlet deflection roller, a deep bending swing arm, a deep bending roller transverse moving trolley, a trolley track beam, a beam upright post, a trolley transverse moving cylinder, a deep bending roller servo cylinder and the like.
Example 1:
a deep-bending dust-removing method in the band steel decoiling process is characterized in that in the decoiling process, when the diameter of a raw material steel coil is phi 1800 mm-phi 2150mm, a deep-bending roller trolley transverse moving cylinder is controlled to enable a horizontal initial position pointer of the trolley to be about 1100mm (position A) in figure 4, and a deep-bending roller follow-up cylinder is controlled to enable a deep-bending roller to be pressed against the surface of band steel and have a certain reverse bending rate. The unit is raised in speed and produced, and meanwhile, the dust removal system is synchronously started, the deep bending roller automatically follows the steel coil diameter and always keeps the reverse bending rate of the strip steel deep bending section to a certain degree. In the whole process of operation of the current steel coil, the iron sheet dust in the region is effectively collected through the deep bending dust removal device and reaches the dust removal system for filtration treatment.
Example 2:
a deep-bending dust removal method in a strip steel flattening process comprises the steps of controlling a deep-bending roller trolley transverse moving cylinder to enable a horizontal initial position pointer of a trolley to be about 1400mm (position B) in a graph 4 and controlling a deep-bending roller follow-up cylinder to enable a deep-bending roller to be pressed against the surface of strip steel and have a certain reverse bending rate when the diameter of a raw material steel coil is between phi 1400mm and phi 1800mm in the uncoiling process. The deep bending roller automatically follows the action along with the reduction of the coil diameter of the steel coil and always keeps the deep bending section of the strip steel at a certain reverse bending rate. In the whole process of operation of the current steel coil, the iron sheet dust in the region is effectively collected through the deep bending dust removal device and reaches the dust removal system for filtration treatment.
Example 3:
a deep-bending dust removal method in a strip steel flattening process comprises the steps of controlling a deep-bending roller trolley transverse moving cylinder to enable a horizontal initial position pointer of a trolley to be about 1700mm (position C) in a graph 4 and controlling a deep-bending roller follow-up cylinder to enable a deep-bending roller to be pressed against the surface of strip steel and have a certain reverse bending rate when the diameter of a raw material steel coil is phi 1000 mm-phi 1400mm in the uncoiling process. The deep bending roller automatically follows the action along with the reduction of the coil diameter of the steel coil and always keeps the deep bending section of the strip steel at a certain reverse bending rate. In the whole process of operation of the current steel coil, the iron sheet dust in the region is effectively collected through the deep bending dust removal device and reaches the dust removal system for filtration treatment. The invention effectively captures and absorbs the iron sheet dust generated in the strip steel in the uncoiling process and the iron sheet dust between the original steel coil layers, thereby greatly improving the surface quality of the strip steel and improving the environmental quality of the workshop field area.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. A deep bending dust removal device in a strip steel flattening process, which is characterized in that,
comprises a deep bending roll (12), a deep bending support roll (2), a deep bending roll swing arm (3), a dust catching and absorbing cover (10), a deep bending roll follow-up cylinder (9) and a dust removal hose (8);
and the accessory facilities are used for the operation of the strip steel and the in-place operation of the deep bending roll and comprise an uncoiler winding drum (1), an inlet deflection roll (11), a deep bending roll transverse moving trolley (7) and a trolley track beam (6);
the deep bending roll (12) is positioned above the uncoiler drum (1) and is pressed against a strip steel section between the uncoiler drum (1) and the inlet deflection roll (11) in the uncoiling process;
the deep bending roll (12) is connected with a deep bending roll transverse trolley (7) through a deep bending roll swinging arm (3), and the base of a deep bending roll follow-up cylinder (9) is arranged on the frame of the deep bending roll transverse trolley (7) and synchronously and horizontally moves with the deep bending roll transverse trolley (7);
the deep-bending roll (12) supports the roll body direction through the deep-bending support roll (2) to meet the requirement of transverse rigidity, and the dust catching and absorbing cover (10) is fixed on the base of the deep-bending support roll (2) and is arranged along the axial direction of the roll body; the dust removal hose (8) is arranged on the deep bending roll transverse trolley (7), and the dust removal hose (8) is connected with a flange opening of the deep bending roll swing arm (3).
2. The deep-bending dust removing device in the strip flattening process as claimed in claim 1, wherein the deep-bending roller traversing carriage (7) is installed in a carriage rail beam (6) and horizontally moved by a carriage traversing cylinder (5).
3. The deep-bending dust removing device in the strip steel decoiling process as claimed in claim 2, characterized in that the trolley track beam (6) is supported by the track beam column (4) and is installed above the decoiler drum (1).
4. The deep-bending dust removing device in the strip flattening process as claimed in claim 1, wherein the deep-bending supporting roll (2) is of a multi-stage structure.
5. The deep-bending dust removing device in the strip flattening process as claimed in claim 4, wherein a gap of about 50mm is left between each section of the roll body of the deep-bending support roll (2), and iron sheet dust in the deep-bending section of the strip is collected through the gap and the dust catching and sucking cover (10).
6. The deep-bending dust removing device in the strip flattening process as claimed in claim 1, wherein the dust catching hood (10) is tightly wrapped outside the deep-bending support roll (2) throughout its length.
7. The deep bending dust removal device in the strip steel flattening process as claimed in claim 1, wherein the collected iron sheet dust reaches the dust removal hose (8) through a cavity channel of the deep bending roll swing arm (3), and then reaches the dust removal system through an intermediate air duct of the dust removal system for filtration treatment and discharge.
8. A deep bending dust removal method in a strip steel flattening process is characterized by comprising the following steps: in the uncoiling process of the strip steel, the deep bending rolls horizontally move to corresponding positions respectively according to the coil diameter of the raw material coil and press the strip steel on a strip steel section between a reel of the uncoiler and an inlet deflection roll, and a certain degree of reverse bending rate is kept; the deep bending roller is pressed down along with the reduction of the coil diameter of the steel coil; a dust flow direction opening, a catching and sucking cover and a dust channel leading to a dust removal and filtration system are arranged at the deep bending roll close to the running strip steel and the dust raising area.
9. The deep-bending dust removal method in the strip steel flattening process as claimed in claim 8, characterized in that: the horizontal initial positions of the deep bending roll traversing trolley are respectively set according to the size of the raw material roll diameter subarea, and the deep bending roll is pressed down along with the follow-up and gradually horizontally adjusted to the right along with the reduction of the raw material roll diameter in the operation process so as to ensure the reverse bending rate between the deep bending roll and the strip steel in the whole stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010622327.8A CN111744986A (en) | 2020-06-30 | 2020-06-30 | Deep bending dust removal device and method in strip steel flattening process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010622327.8A CN111744986A (en) | 2020-06-30 | 2020-06-30 | Deep bending dust removal device and method in strip steel flattening process |
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| CN202010622327.8A Pending CN111744986A (en) | 2020-06-30 | 2020-06-30 | Deep bending dust removal device and method in strip steel flattening process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505366A (en) * | 2022-02-16 | 2022-05-17 | 中冶南方工程技术有限公司 | Dust removal method and device for uncoiling of hot-rolled black coiled strip steel |
| CN115301761A (en) * | 2022-08-19 | 2022-11-08 | 中冶南方工程技术有限公司 | Steel coil uncoiling unit and steel coil uncoiling method |
-
2020
- 2020-06-30 CN CN202010622327.8A patent/CN111744986A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505366A (en) * | 2022-02-16 | 2022-05-17 | 中冶南方工程技术有限公司 | Dust removal method and device for uncoiling of hot-rolled black coiled strip steel |
| CN114505366B (en) * | 2022-02-16 | 2023-09-15 | 中冶南方工程技术有限公司 | Dust removing method and device for uncoiling hot-rolled black coiled steel |
| CN115301761A (en) * | 2022-08-19 | 2022-11-08 | 中冶南方工程技术有限公司 | Steel coil uncoiling unit and steel coil uncoiling method |
| CN115301761B (en) * | 2022-08-19 | 2023-10-27 | 中冶南方工程技术有限公司 | Coil uncoiling unit and coil uncoiling method |
| WO2024036988A1 (en) * | 2022-08-19 | 2024-02-22 | 中冶南方工程技术有限公司 | Steel coil uncoiling unit and steel coil uncoiling method |
| WO2024036712A1 (en) * | 2022-08-19 | 2024-02-22 | 中冶南方工程技术有限公司 | Steel coil uncoiling unit and steel coil uncoiling method |
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