CN113059010B - Online descaling device for square billets - Google Patents
Online descaling device for square billets Download PDFInfo
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- CN113059010B CN113059010B CN202110509338.XA CN202110509338A CN113059010B CN 113059010 B CN113059010 B CN 113059010B CN 202110509338 A CN202110509338 A CN 202110509338A CN 113059010 B CN113059010 B CN 113059010B
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- descaling
- water pipe
- piston
- pipe
- connecting pipe
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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
- B21B45/08—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
-
- 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
Abstract
The invention provides an online descaling device for square billets, and belongs to the technical field of steel smelting equipment. The on-line descaling device for the square billets comprises a brushing structure and a descaling ring structure, wherein the brushing structure consists of two pairs of rollers which are positioned on different planes in the vertical direction, the distance between the two pairs of rollers is adjustable, the descaling ring structure consists of a descaling ring A part and a descaling ring B part, two connecting pipes of the descaling ring B part drive a piston shell to move along descaling water pipes in the horizontal direction and the vertical direction respectively, and simultaneously drive four descaling water pipes to approach and separate, so that the change of the sectional area of the descaling ring structure is realized, and a plurality of descaling rings are not required to be arranged. The invention is suitable for descaling the square billets of different specifications by changing the sizes of the brushing structure and the descaling ring structure, and the iron oxide scales on the surfaces of the square billets are removed more cleanly by matching the brushing structure and the descaling ring structure.
Description
Technical Field
The invention belongs to the technical field of steel smelting equipment, and particularly relates to an online descaling device for square billets.
Background
The square billet is a billet with a square section, which is produced by a continuous steel casting machine and used for processing a section, and comprises a large square billet and a small square billet. Descaling of billets is a key process of a hot-rolled rod and wire production process, and if descaling is not clean, surface quality defects of products such as pitted surfaces and pits can be generated. The high-pressure water descaling is to remove the scale and regenerated scale generated by heating the surface of the blank by using high-pressure water. The conventional square billet descaling ring is generally designed and selected according to the descaling requirement meeting the maximum billet specification and size, is directly used for small-specification billets, and can cause the situations of incomplete descaling and water resource waste. In order to solve the problem that the descaling rings cannot be simultaneously suitable for blanks of different sizes, the corresponding descaling rings are selected according to the sizes of the blanks by arranging the descaling rings with different grid sizes in the prior art.
Disclosure of Invention
In view of the above, the invention provides an on-line billet descaling device, which is suitable for descaling billets of different specifications by changing the size of a descaling ring.
The present invention achieves the above-described object by the following technical means.
The online descaling device for the square billets comprises a descaling ring structure, wherein the descaling ring structure comprises a descaling ring A part and a descaling ring B part;
the part A of the descaling ring is of a square structure formed by 4 identical descaling water pipes, a plurality of through holes are formed in two end parts of each descaling water pipe at equal intervals, and a plurality of nozzles A are formed in the inner sides of the descaling water pipes at equal intervals;
the descaling ring B part comprises a descaling water pipe B, a connecting pipe A, a connecting pipe B and two connecting assemblies, wherein each connecting assembly comprises a piston and a piston shell, the piston shell is integrally hollow and has an open structure at the lower end, the piston is fixedly connected with the piston shell into a whole through a rod part at the tail end, and the piston is positioned inside one end of the piston shell; two ends of the descaling water pipe B are respectively communicated with one ends of the connecting pipe A and the connecting pipe B, the other ends of the connecting pipe A and the connecting pipe B are arranged on the piston shell, and pipe orifices of the connecting pipe A and the connecting pipe B are both positioned on the inner side of the piston; the connecting pipe A and the connecting pipe B are different in length; the inner side of the descaling water pipe B is provided with a nozzle B, the tail end of the descaling water pipe B is communicated with a high-pressure water pipe, and the high-pressure water pipe is movably connected to the shell B;
the two ends of the descaling water pipe can be movably clamped into the hollow end part of the piston shell.
The technical scheme is that the descaling device further comprises a brushing structure, wherein the brushing structure is positioned in front of the descaling ring structure on the square billet production line; the brushing structure comprises a shell A, four rollers and roller shafts, wherein the four rollers are divided into two pairs which are respectively arranged along the horizontal direction and the vertical direction, and the two pairs of rollers are positioned on different planes in the vertical direction; the roller sleeve is arranged on the outer side of the roller shaft, the roller shaft is clamped in clamping grooves in the side wall of the shell A through sliding blocks at two ends, and the clamping grooves are arranged in a plurality.
In a further technical scheme, the surface of the roller is made into a tooth shape by adopting an iron material.
According to a further technical scheme, the roller shaft is driven by a power source to rotate.
According to a further technical scheme, the length of the piston in the horizontal direction is smaller than the distance between the two through holes.
According to the further technical scheme, the length of the rod part at the tail end of the piston is larger than the distance from the innermost through hole of the descaling water pipe to the end part of the descaling water pipe.
According to the further technical scheme, the high-pressure water pipe can move in the direction perpendicular to the descaling water pipe B under the driving of the power component, and the moving distance is fixed every time.
According to the further technical scheme, the high-pressure water pipe is communicated with an external water source, and a flow valve and a pressure gauge are arranged on the communicating pipe.
The invention has the beneficial effects that:
(1) according to the invention, the brushing structure and the descaling ring structure are sequentially arranged along the square billet production line, firstly, the scale on the surface of the square billet is broken and loosened by the brushing structure and swept to be removed, and then, under the action of high-pressure water of the descaling ring structure, the secondary removal of the scale at each angle of the square billet is realized, so that the surface of the square billet is removed more cleanly.
(2) The brushing structure comprises two pairs of rollers which are positioned on different planes in the vertical direction, two ends of a roller shaft are clamped in clamping grooves in the side wall of the shell through sliding blocks, and the plurality of clamping grooves are arranged to realize separation and approach of the two pairs of rollers, so that the brushing structure is suitable for descaling square billets of different specifications.
(3) The descaling ring structure is composed of a descaling ring A part and a descaling ring B part, wherein the descaling ring A part is integrally of a square structure and used for removing iron scales on four side surfaces of a square billet; in addition, the two connecting pipes of the part B of the descaling ring drive the piston shell to move along the descaling water pipes in the horizontal direction and the vertical direction respectively, and simultaneously drive the four descaling water pipes to approach and separate, so that the change of the sectional area of the descaling ring structure is realized, and a plurality of descaling rings are not required to be arranged.
Drawings
FIG. 1 is a schematic structural view of an on-line descaling device for square billets, according to the invention;
FIG. 2 is a schematic view of the internal structure of the shell of the on-line billet descaling device according to the present invention;
FIG. 3 is a schematic view of a descaling ring structure according to the present invention;
FIG. 4 is a partial schematic view of the descaling cell structure of the present invention;
FIG. 5 is a schematic view showing the horizontal and vertical scale removing water pipes according to the present invention;
FIG. 6 is a schematic view of the descaling ring structure of the present invention with a maximum cross-sectional area;
FIG. 7 is a schematic view of the minimum cross-sectional area of the descaling cell structure of the present invention;
in the figure: 1-shell A, 2-roller, 3-roller shaft, 4-shell B, 5-descaling water pipe A, 6-through hole, 7-nozzle A, 8-descaling water pipe B, 9-connecting pipe A, 10-connecting pipe B, 11-piston, 12-piston shell, 13-nozzle B, 14-high pressure water pipe.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in FIG. 1, the on-line descaling device for square billets of the invention comprises a descaling ring structure and a brushing structure, wherein the brushing structure is positioned in front of the descaling ring structure on a square billet production line.
As shown in fig. 1 and 2, the brushing structure comprises a casing a1, rollers 2 and a roller shaft 3, wherein the casing a1 is a hollow cuboid structure, the front end and the rear end of the casing are open, the number of the rollers 2 is 4, a pair of horizontally arranged rollers 2 are located on the same plane along the vertical direction, a pair of vertically arranged rollers 2 are also located on the same plane along the vertical direction, but two pairs of rollers 2 are located on different planes along the vertical direction; the power of the roller shaft 3 is provided by an external motor, the roller 2 is sleeved outside the roller shaft 3, two ends of the roller shaft 3 are provided with slide blocks (not shown in the figure), and the roller shaft 3 is clamped in clamping grooves on the side wall of the shell A1 through the slide blocks at the two ends; the upper side wall and the lower side wall of the shell A1 are provided with a plurality of clamping grooves (not shown in the figure) along the horizontal direction to realize the separation and the approach of the two rollers 2 in the vertical direction, and the left side wall and the right side wall of the shell A1 are provided with a plurality of clamping grooves (not shown in the figure) along the vertical direction to realize the separation and the approach of the two rollers 2 in the horizontal direction so as to be suitable for the descaling of square billets of different specifications. The surface of the roller 2 is made into a tooth shape by adopting an iron material.
As shown in fig. 1 and 3, the descaling ring structure comprises a shell B4, a descaling ring a part and a descaling ring B part; as shown in fig. 3, the part a of the descaling ring comprises 4 identical descaling water pipes 5, and 4 descaling water pipes 5 are matched to form a square structure; as shown in fig. 4, a plurality of through holes 6 are arranged at the matching positions of the two end parts of the descaling water pipe 5 and the descaling ring B part at equal intervals, and a plurality of nozzles A7 are arranged at the inner side of the descaling water pipe 5 at equal intervals; as shown in fig. 3, the descaling ring B comprises a descaling water pipe B8, a connecting pipe a9, a connecting pipe B10 and two connecting assemblies, wherein two ends of the descaling water pipe B8 are respectively communicated with one end of the connecting pipe a9 and one end of the connecting pipe B10, the connecting assemblies comprise a piston 11 and a piston housing 12, the piston 11 is positioned inside one end of the piston housing 12, the length of the piston 11 along the horizontal direction is smaller than the distance between the two through holes 6, the rod part of the piston 11 is fixedly connected with the piston housing 12 into a whole, and the length of the rod part of the piston 11 is larger than the distance from the innermost through hole 6 of the descaling water pipe 5 to the end part of the descaling water pipe 5; the piston shell 12 is hollow as a whole, and the lower end of the piston shell is open (only two side surfaces and the upper top surface are provided), so that two ends of the descaling water pipe 5 are inserted into the hollow end part of the piston shell 12, and the descaling ring A part is matched with the descaling ring B part; the other ends of the connecting pipe A9 and the connecting pipe B10 are arranged on the piston shell 12, the pipe orifices of the connecting pipe A9 and the connecting pipe B10 are both positioned at the inner side of the piston 11, and the lengths of the connecting pipe A9 and the connecting pipe B10 are different, so that the horizontal descaling water pipe 5 and the vertical descaling water pipe 5 are not in the same plane (as shown in FIG. 5); the inner side of the descaling water pipe B8 is provided with a nozzle B13, the tail end of the descaling water pipe B8 is communicated with the high-pressure water pipe 14, the high-pressure water pipe 14 is movably connected to the shell B4, the outside of the high-pressure water pipe 14 can move in the direction perpendicular to the descaling water pipe B8 under the driving of a power component, and the moving distance L is fixed (the primary stroke of the power component is set as a fixed value) every time, so that the connecting pipe A9 and the connecting pipe B10 are driven to move for a certain distance (in sine-cosine relation with L and equal to the distance between two through holes 6) on the descaling water pipe 5 in the horizontal and vertical directions respectively, and the connecting pipe A9 and the connecting pipe B10 are guaranteed to correspond to the through holes 6. The high pressure water pipe 14 is communicated with an external water source, and a flow valve and a pressure gauge are arranged on the communicating pipe for changing the water supply pressure and flow.
The use method of the square billet online descaling device comprises the following steps: adjusting a descaling ring structure and a brushing structure according to the size of a square billet to be descaled, wherein the brushing structure realizes the adjustment of the distance between the two pairs of rollers 2 by adjusting the positions of the sliding blocks of the roller shafts 3 in the clamping grooves on the side wall of the shell A1; the outside of the high-pressure water pipe 14 is driven by a power unit to drive the descaling water pipe B8 to move, so that the connecting pipe A9 and the connecting pipe B10 respectively move on the descaling water pipe 5 in the horizontal and vertical directions, the connecting pipe A9 and the connecting pipe B10 are communicated with the descaling water pipe 5 through the through hole 6, and under the action of the piston 11, two ends of the descaling water pipe 5 are closed; the connecting pipe A9 drives the horizontally arranged descaling water pipe 5 to move up and down while moving on the descaling water pipe 5 in the horizontal direction, and the connecting pipe B10 drives the vertically arranged descaling water pipe 5 to move left and right while moving on the descaling water pipe 5 in the vertical direction, and the online descaling device before and after adjustment is shown in figures 6 and 7; after the descaling ring structure and the brushing structure are adjusted, the flow valve and the pressure gauge are used for adjusting the water supply pressure and flow according to the size of the descaling square billet, so that the pressure and flow requirements of the descaling of the square billets with different specifications are met. The square billet enters a brushing structure under the drive of a roller, a roller shaft 3 rotates under the drive of an external motor, iron teeth on the surface of a roller 2 break and loosen the iron scales on the surface of the square billet and sweep the iron scales, the square billet continues to move forwards and enters a descaling ring structure, external water is supplied, high-pressure water is divided into two paths through a descaling water pipe B8, one path is directly sprayed out through a nozzle B13, the other path flows into a descaling water pipe 5 through a connecting pipe and a through hole 6 and is sprayed out through a nozzle A7, and the iron scales on the surface of the square billet are removed secondarily.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The online descaling device for the square billets is characterized by comprising a descaling ring structure, wherein the descaling ring structure comprises a descaling ring A part and a descaling ring B part;
the part A of the descaling ring is of a square structure formed by 4 identical descaling water pipes (5), a plurality of through holes (6) are formed in two end parts of each descaling water pipe (5) at equal intervals, and a plurality of nozzles A (7) are formed in the inner sides of the descaling water pipes (5) at equal intervals;
the descaling ring B part comprises a descaling water pipe B (8), a connecting pipe A (9), a connecting pipe B (10) and two connecting assemblies, each connecting assembly comprises a piston (11) and a piston shell (12), the piston shell (12) is integrally hollow and has an open structure at the lower end, the piston (11) is fixedly connected with the piston shell (12) into a whole through a rod part at the tail end, and the piston (11) is positioned inside one end of the piston shell (12); two ends of the descaling water pipe B (8) are respectively communicated with one ends of the connecting pipe A (9) and the connecting pipe B (10), the other ends of the connecting pipe A (9) and the connecting pipe B (10) are arranged on the piston shell (12), and pipe orifices of the connecting pipe A (9) and the connecting pipe B (10) are positioned on the inner side of the piston (11); the connecting pipe A (9) and the connecting pipe B (10) are different in length; a nozzle B (13) is arranged on the inner side of the descaling water pipe B (8), the tail end of the descaling water pipe B (8) is communicated with a high-pressure water pipe (14), and the high-pressure water pipe (14) is movably connected to the shell B (4);
two ends of the descaling water pipe (5) can be movably clamped into the hollow end part of the piston shell (12).
2. The on-line billet descaling device according to claim 1, further comprising a brushing structure located in front of the descaling ring structure on the billet flow line; the brushing structure comprises a shell A (1), four rollers (2) and a roller shaft (3), wherein the four rollers (2) are divided into two pairs and are respectively arranged along the horizontal direction and the vertical direction, and the two pairs of rollers (2) are positioned on different planes in the vertical direction; the roller (2) is sleeved on the outer side of the roller shaft (3), the roller shaft (3) is clamped in clamping grooves in the side wall of the shell A (1) through sliding blocks at two ends, and the clamping grooves are arranged in a plurality.
3. An on-line billet descaling device according to claim 2, wherein the surface of the roller (2) is made of ferrous material in tooth shape.
4. An on-line billet descaling device according to claim 2, wherein the roller shaft (3) is rotated by a power source.
5. An in-line billet descaling device according to claim 1, wherein the length of the piston (11) in the horizontal direction is less than the distance between the two through holes (6).
6. An on-line billet descaling device according to claim 1, wherein the length of the rod part at the tail end of the piston (11) is greater than the distance from the innermost through hole (6) of the descaling water pipe (5) to the end of the descaling water pipe (5).
7. An on-line billet descaling device according to claim 1, wherein the high-pressure water pipe (14) can move in a direction perpendicular to the descaling water pipe B (8) under the drive of the power unit, and the moving distance of each time is fixed.
8. An on-line billet descaling device according to claim 1, wherein the high-pressure water pipe (14) is communicated with an external water source, and a flow valve and a pressure gauge are arranged on the communicated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509338.XA CN113059010B (en) | 2021-05-11 | 2021-05-11 | Online descaling device for square billets |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509338.XA CN113059010B (en) | 2021-05-11 | 2021-05-11 | Online descaling device for square billets |
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| CN113059010A CN113059010A (en) | 2021-07-02 |
| CN113059010B true CN113059010B (en) | 2022-03-18 |
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| CN115401616B (en) * | 2022-08-23 | 2023-08-11 | 太原科技大学 | High-pressure abrasive slurry steel plate descaling equipment |
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| CN113059010A (en) | 2021-07-02 |
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