CN111530950A - Door-type slab descaling device of adjustable height - Google Patents
Door-type slab descaling device of adjustable height Download PDFInfo
- Publication number
- CN111530950A CN111530950A CN202010407431.5A CN202010407431A CN111530950A CN 111530950 A CN111530950 A CN 111530950A CN 202010407431 A CN202010407431 A CN 202010407431A CN 111530950 A CN111530950 A CN 111530950A
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- descaling
- hydraulic cylinder
- frame
- combined
- door type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention provides a door type slab descaling device with adjustable height, which comprises: the combined door type descaling system comprises a combined door type frame, an upper descaling header part, a lower descaling header part, a descaling water collecting cover, a hydraulic lifting mechanism and a self-aligning part; the combined type frame can be fixed in a seam allowance of an upper cross beam of an inlet of the vertical rolling mill through bolts, and a copper sliding plate is arranged on the inner side of the portal frame; the valve blocks at the two ends of the upper descaling collecting pipe are provided with sliding grooves which can slide up and down along a copper sliding plate in the frame; the hydraulic cylinder is inversely arranged at the upper part of the portal frame, and a displacement sensor is arranged in the hydraulic cylinder; the lower cylinder head of the hydraulic cylinder is connected with the upper pipe collecting valve block through a self-aligning part, so that the upper descaling pipe collecting block is prevented from being clamped when sliding in the frame; the descaling water collecting cover is arranged on the upper descaling collecting pipe, so that descaling rebounding water of the upper descaling collecting pipe is collected, the descaling water is prevented from being accumulated on the surface of the plate blank, and the temperature drop of the plate blank is reduced; the lower descaling header is arranged between rollers of a slab conveying roller way and is fixed on a lower cross beam at the inlet of the vertical rolling mill through a bracket.
Description
Technical Field
The invention relates to a hot continuous rolling rough rolling area device, in particular to a door type plate blank descaling device with adjustable height.
Background
At present, scale on the surfaces of slabs entering and leaving the rough rolling area and scale generated by reversible rolling gaps of the slabs in the rough rolling area are mainly realized by a descaling header in the hot continuous rolling rough rolling area. The descaling header is generally arranged on the inlet beam of the vertical rolling mill and in the guide and guard device of the horizontal rolling mill.
The descaling manifold on the inlet cross beam of the vertical rolling mill is fixed, and the height of the descaling manifold cannot be changed along with the change of the thickness of the plate blank when the thickness of the supplied material of the plate blank is changed or the thickness of the plate blank is changed after the plate blank is rolled reversibly, namely the descaling height is changed. The striking force of high-pressure water sprayed from the collecting pipe on the surface of the plate blank is inversely proportional to the square of the descaling height, and the descaling effect on the surface of the plate blank is directly influenced by the change of the descaling height. If the scale on the surface of the plate blank is not cleaned, the scale can be pressed into the blank, and longitudinal ductility surface defects are formed in subsequent rolling, so that the surface quality of the finished strip is influenced, and even waste products are generated.
Disclosure of Invention
According to the technical problems, the door type slab descaling device with flexible spraying angle and adjustable height is provided.
The technical means adopted by the invention are as follows:
a height-adjustable door-type slab descaling device, comprising:
the combined door type descaling system comprises a combined door type frame, an upper descaling header part, a lower descaling header part, a descaling water collecting cover, a hydraulic lifting mechanism and a self-aligning part;
the pair of combined portal frames are oppositely arranged left and right, and each combined portal frame is fixed in a seam allowance of an upper cross beam at the inlet of the vertical rolling mill through bolts or is independently arranged on a base of a foundation;
a copper sliding plate is arranged in the height direction of the inner side of the hole part of the combined portal frame;
the valve blocks arranged at the two ends of the upper descaling header pipe part are designed with sliding grooves, and the sliding grooves are assembled with the copper sliding plate in a sliding fit manner, namely the valve blocks can slide up and down along the copper sliding plate;
a hydraulic cylinder of the hydraulic lifting mechanism is inversely arranged at the upper part of the combined portal frame, a concave pad and a convex pad are arranged between a cylinder head at the telescopic end of the lower part of the hydraulic cylinder and the upper descaling header part, so that the rigid connection between a cylinder rod of the hydraulic cylinder and the upper descaling header part is avoided, and the cylinder head, the concave pad and the convex pad are fixed in an installation groove of the upper descaling header part by a gland; a displacement sensor is arranged in the hydraulic cylinder, and the hydraulic cylinder is stretched to control the height of the upper descaling header part;
a descaling water collecting cover for collecting descaling rebounding water of the upper descaling header part is arranged on the upper descaling header part;
the lower descaling header part is arranged between rollers of a slab conveying roller way and is fixed on a lower cross beam at the inlet of the vertical rolling mill through a bracket.
Further, in the above-mentioned case,
the spray angles of the liquid spray openings of the upper descaling header component and the lower descaling header component are adjustable, and the structure is mainly used for changing the spray angles of the liquid spray openings and adjusting the matching height so as to achieve the further enhanced dephosphorization effect of optimal spray pressure.
Further, in the above-mentioned case,
the edge of the descaling water collecting cover is provided with a water retaining edge extending downwards.
The water retaining edge of the descaling water collecting cover is of a downwardly extensible telescopic structure, and the descaling water collecting cover can better collect splashing liquid according to different spraying angles and different splashing liquid caused by spraying pressure.
Compared with the prior art, the invention has the following advantages:
the height of the descaling header can be adjusted according to the thickness of the plate blank, the descaling height is guaranteed to be unchanged, the descaling effect of the plate blank in a hot continuous rolling rough rolling area is obviously improved, and the surface quality of an intermediate blank is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 a front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is a partial enlarged view of the position i in fig. 2.
In the figure:
1-a hydraulic cylinder;
2-a combined door frame;
3-upper descaling header part;
4-descaling water collecting cover; 41. a water retaining edge;
5-vertical rolling mill;
6-self-alignment adjustment component;
7-lower descaling header;
8, a roller way;
9-a plate blank;
10-a hydraulic lifting mechanism;
11-concave pad;
12-convex pad;
13-cylinder head;
14-gland.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, 2, 3 and 4, the present invention provides a height-adjustable door type slab descaling device, comprising:
the combined door type frame 2, the upper descaling header part 3, the lower descaling header part 7, the descaling water collecting cover 4, the hydraulic lifting mechanism 10 and the self-aligning part 6;
the pair of combined portal frames 2 are oppositely arranged left and right, and each combined portal frame 2 is fixed in a seam allowance of an upper cross beam of an inlet of the vertical rolling mill through a bolt or is independently arranged on a base of a foundation;
a copper sliding plate is arranged in the height direction of the inner side of the hole part of the combined door type frame 2;
the valve blocks arranged at the two ends of the upper descaling header pipe part 3 are designed with sliding grooves, and the sliding grooves are assembled with the copper sliding plate in a sliding fit manner, namely the valve blocks can slide up and down along the copper sliding plate;
the hydraulic cylinder 1 of the hydraulic lifting mechanism 10 is inversely arranged at the upper part of the combined portal frame 2, a concave pad 11 and a convex pad 12 are arranged between a cylinder head 13 at the telescopic end of the lower part of the hydraulic cylinder 1 and the upper descaling manifold part 3, the rigid connection between a cylinder rod of the hydraulic cylinder 1 and the upper descaling manifold part 3 is avoided, and the cylinder head 13, the concave pad 11 and the convex pad 12 are fixed in the mounting groove of the upper descaling manifold part 3 by a gland 14; a displacement sensor is arranged in the hydraulic cylinder 1, and the hydraulic cylinder 1 is used for controlling the height of the upper descaling header pipe part 3 in a telescopic mode;
a scale removal water collecting cover 4 for collecting scale removal rebound water of the upper scale removal collecting pipe component 3 is arranged on the upper scale removal collecting pipe component 3;
the lower descaling header part 7 is arranged between rollers of a slab conveying roller way 8 and is fixed on a lower cross beam of an inlet of the vertical rolling mill through a bracket.
Further, in the above-mentioned case,
the spray angles of the liquid spray openings of the upper descaling manifold part 3 and the lower descaling manifold part 7 are adjustable, and the structure is mainly used for changing the spray angles of the liquid spray openings and adjusting the matching height so as to achieve the further enhanced dephosphorization effect of optimal spray pressure.
Further, in the above-mentioned case,
the edge of the descaling water collecting cover 4 is provided with a water retaining rim 41 extending downward.
The water retaining edge 41 of the descaling water collecting cover 4 is of a downwardly extensible telescopic structure, and the design can better collect splashed liquid according to different spraying angles and different splashing liquid caused by spraying pressure.
According to the technical scheme, before the device is put into use after being installed, the displacement sensor in the hydraulic cylinder 1 is calibrated, and the functional relation between the moving distance of the hydraulic cylinder 1 and the thickness of the plate blank 9 is established (the preset calibrated plate blank thickness is H0, the descaling height is H0, the thickness of the plate blank during descaling is H, the moving distance of the upper descaling header is H, H is H-H0, if H is positive, the upper header is indicated to move upwards H, and if the H is negative, the upper header moves downwards H).
When the device is used on site, the thickness information of the plate blank is obtained by an automatic system, the distance H of the upper collecting pipe needing to move is calculated, the automatic system drives the hydraulic cylinder 1 to extend or retract the distance H by controlling the valve block of the hydraulic system, when the hydraulic cylinder 1 acts, the cylinder head drives the valve blocks at the two ends of the descaling collecting pipe part 3 to move in the combined door type frame 2, at the moment, the moving distance can be fed back to the automatic system by the displacement sensor arranged inside the hydraulic cylinder 1, when the distance H is reached, the automatic system controls the hydraulic valve block to be closed and locked, and the upper collecting pipe is stopped at the preset descaling height.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A door-type slab descaling device of adjustable height, characterized by that includes:
the descaling device comprises a combined portal frame (2), an upper descaling header part (3), a lower descaling header part (7), a descaling water collecting cover (4), a hydraulic lifting mechanism (10) and a self-aligning part (6);
the pair of combined portal frames (2) are oppositely arranged left and right, and each combined portal frame (2) is fixed in a seam allowance of an upper cross beam of an inlet of the vertical rolling mill through a bolt or is independently arranged on a base of a foundation;
a copper sliding plate is arranged in the height direction of the inner side of the hole part of the combined door type frame (2);
the valve blocks arranged at the two ends of the upper descaling header pipe part (3) are designed with sliding grooves, and the sliding grooves are assembled with the copper sliding plate in a sliding fit manner, namely the valve blocks can slide up and down along the copper sliding plate;
a hydraulic cylinder (1) of a hydraulic lifting mechanism (10) is inversely arranged at the upper part of a combined gate-type frame (2), a concave pad (11) and a convex pad (12) are arranged between a cylinder head (13) at the telescopic end of the lower part of the hydraulic cylinder (1) and an upper descaling header pipe part (3), rigid connection between a cylinder rod of the hydraulic cylinder (1) and the upper descaling header pipe part (3) is avoided, and the cylinder head (13), the concave pad (11) and the convex pad (12) are fixed in a mounting groove of the upper descaling header pipe part (3) by a gland (14); a displacement sensor is arranged in the hydraulic cylinder (1), and the hydraulic cylinder (1) is stretched to control the height of the upper descaling header component (3);
a descaling water collecting cover (4) for collecting descaling rebounding water of the upper descaling header part (3) is arranged on the upper descaling header part (3);
the lower descaling header part (7) is arranged between rollers of a slab conveying roller way and is fixed on a lower cross beam of an inlet of the vertical rolling mill through a bracket.
2. The door type slab descaling device with adjustable height of claim 1,
the liquid jet ports of the upper descaling manifold part (3) and the lower descaling manifold part (7) are adjustable in jet angle.
3. The door type slab descaling device with adjustable height of claim 1 or 2,
the edge of the descaling water collecting cover (4) is provided with a water retaining edge (41) extending downwards.
4. The door type slab descaling device with adjustable height of claim 3,
the water retaining edge (41) of the descaling water collecting cover (4) is of a telescopic structure capable of extending downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407431.5A CN111530950A (en) | 2020-05-14 | 2020-05-14 | Door-type slab descaling device of adjustable height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407431.5A CN111530950A (en) | 2020-05-14 | 2020-05-14 | Door-type slab descaling device of adjustable height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111530950A true CN111530950A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010407431.5A Pending CN111530950A (en) | 2020-05-14 | 2020-05-14 | Door-type slab descaling device of adjustable height |
Country Status (1)
| Country | Link |
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| CN (1) | CN111530950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042553A (en) * | 2021-02-25 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Finish descaling device and hot rolling production line of hot rolling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151106A (en) * | 1980-04-23 | 1981-11-24 | Nippon Kokan Kk <Nkk> | Descaling method for inner surface of pipe during hot rolling pass for seamless steel pipe |
| KR20040024022A (en) * | 2002-09-12 | 2004-03-20 | 주식회사 포스코 | variable descalng apparatus |
| CN202097200U (en) * | 2011-04-15 | 2012-01-04 | 广东省韶关钢铁集团有限公司 | Descaling box and upper header thereof |
| CN203227688U (en) * | 2013-05-08 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Fine descaling machine in front of straightening machine |
| CN204320825U (en) * | 2014-12-15 | 2015-05-13 | 福建鼎信实业有限公司 | De-scaling box structure after a kind of stove |
| CN208146660U (en) * | 2018-03-28 | 2018-11-27 | 鞍钢股份有限公司 | A kind of descaling device |
| CN209577751U (en) * | 2019-01-25 | 2019-11-05 | 二重（德阳）重型装备有限公司 | The preposition descaling device of roughing mills |
-
2020
- 2020-05-14 CN CN202010407431.5A patent/CN111530950A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151106A (en) * | 1980-04-23 | 1981-11-24 | Nippon Kokan Kk <Nkk> | Descaling method for inner surface of pipe during hot rolling pass for seamless steel pipe |
| KR20040024022A (en) * | 2002-09-12 | 2004-03-20 | 주식회사 포스코 | variable descalng apparatus |
| CN202097200U (en) * | 2011-04-15 | 2012-01-04 | 广东省韶关钢铁集团有限公司 | Descaling box and upper header thereof |
| CN203227688U (en) * | 2013-05-08 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Fine descaling machine in front of straightening machine |
| CN204320825U (en) * | 2014-12-15 | 2015-05-13 | 福建鼎信实业有限公司 | De-scaling box structure after a kind of stove |
| CN208146660U (en) * | 2018-03-28 | 2018-11-27 | 鞍钢股份有限公司 | A kind of descaling device |
| CN209577751U (en) * | 2019-01-25 | 2019-11-05 | 二重（德阳）重型装备有限公司 | The preposition descaling device of roughing mills |
Non-Patent Citations (3)
| Title |
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| 《热带钢连轧机》编写小组: "《热带钢连轧机》", 31 October 1976, 机械工业出版社 * |
| 于雷等: "新型粗轧高压水除鳞机 ", 《一重技术》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113042553A (en) * | 2021-02-25 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Finish descaling device and hot rolling production line of hot rolling |
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Application publication date: 20200814 |
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