CN112170510B - High-pressure water descaling header nozzle angle calibration tool and calibration method - Google Patents
High-pressure water descaling header nozzle angle calibration tool and calibration method Download PDFInfo
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- CN112170510B CN112170510B CN202010902438.4A CN202010902438A CN112170510B CN 112170510 B CN112170510 B CN 112170510B CN 202010902438 A CN202010902438 A CN 202010902438A CN 112170510 B CN112170510 B CN 112170510B
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- nozzle
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
Abstract
The invention discloses a high-pressure water descaling header nozzle angle checking tool and a checking method, and the checking tool comprises a plumb line, a first calibration disc, a nozzle checking cone and a second calibration disc, wherein the plumb line is arranged between V-shaped reference points at the upper ends of the first calibration disc and the second calibration disc, two ends of the plumb line are positioned at the outer sides of the first calibration disc and the second calibration disc, and two nozzle checking cones are arranged on the plumb line. The high-pressure water descaling header injection angle calibration method can calibrate the injection angle of the descaling header before the descaling header is used; the design structure is simple, and the checking accuracy of the nozzle (injection) angle of the collecting pipe is high; the check is convenient, the angles of all the nozzles can be checked one by one, the nozzles can be checked by sampling, and the nozzles can be checked by one-time visual check through the pulled plumb line; and the mounting welding positioning of the nozzle base in the header manufacturing stage can also be used.
Description
Technical Field
The invention relates to the technical field of hot rolling, in particular to a high-pressure water descaling header nozzle angle calibration tool and a calibration method.
Background
In order to ensure the surface quality of steel plate products, hot rolling line process equipment is provided with a high-pressure water descaling device, the key part of the descaling device is a descaling header pipe, a row of nozzles are arranged on the descaling header pipe, high-pressure water with the pressure of dozens of MPa is sprayed to the upper surface and the lower surface of a casting blank through the nozzles, the iron oxide scales on the surface of the casting blank are removed completely, the nozzles are manufactured and arranged on the header pipe and have strict requirements on positions such as angles, distances and the like, the effect of high-pressure water descaling striking force is influenced due to incorrect nozzle angle, the iron oxide scales on the surface of the casting blank are not removed completely, and the surface quality of the products is finally influenced. Therefore, before the descaling header spare part is used on a machine, whether the manufacturing and mounting angle of the nozzle is correct or not needs to be verified, so that the influence on the descaling hitting force effect and the product quality caused by incorrect high-pressure water spraying angle is avoided, and due to the particularity of the structure of the header, the verification of the angle of the nozzle is difficult.
Disclosure of Invention
The invention aims to provide a high-pressure water descaling header spray angle calibration method, which can calibrate the spray angle of a descaling header before the descaling header is used; the design structure is simple, and the checking accuracy of the nozzle (injection) angle of the collecting pipe is high; the check-up is convenient, both can check up all nozzle angles one by one, also can the spot check, also can once only check up visually to all nozzles through the plumb line that draws.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-pressure water descaling header nozzle angle calibration tool comprises a hammerhead line, a first calibration disc, a nozzle calibration cone and a second calibration disc, wherein the hammerhead line is arranged between V-shaped reference points at the upper ends of the first calibration disc and the second calibration disc, two ends of the hammerhead line are positioned on the outer sides of the first calibration disc and the second calibration disc, and the hammerhead line is provided with two nozzle calibration cones.
Furthermore, the first calibration disc is provided with a positioning key and a fixing screw.
Furthermore, a positioning pin and a fixing bolt are arranged on the second calibration disc.
Furthermore, the cone end of the nozzle validation cone body is of a pointed structure, and the other end of the nozzle validation cone body is of a threaded nut structure.
A high-pressure water descaling header device comprises a descaling header, nozzles, nozzle bases, a header water inlet end flange and a header mounting and positioning key groove, wherein the descaling header is welded with a plurality of nozzle bases, the nozzles are fixed on the nozzle bases through nuts, the header mounting and positioning key groove is formed in one end of the descaling header, and the header water inlet end flange is arranged at the other end of the descaling header.
Furthermore, the installation welding position of the nozzle base on the dephosphorization header pipe has strict requirements on the spraying angle (a), the distance and the deflection angle (b).
Further, on the section of the circumferential position of the dephosphorization header where each nozzle base is located, an angle between the nozzle center line and the dephosphorization header section vertical center line (the dephosphorization header section vertical center line is also the center line of the dephosphorization header installation positioning key and is also called as the dephosphorization header installation positioning reference line) is a (also called as a spray angle a).
A high pressure water descaling header nozzle angle verification method, the method comprising:
the first calibration disc is installed in a dephosphorization header installation positioning key groove through a positioning key and is fixed by a fixing screw, the second calibration disc is installed in a dephosphorization header flange connection fixing bolt hole through a fixing bolt and is fixed by a bolt, two V-shaped datum points of the first calibration disc and the second calibration disc deviate from the dephosphorization header installation central line by an angle of a degrees, namely the central lines of the V-shaped datum points coincide with the central lines of the nozzles, a plumb line is pulled between the V-shaped datum points on the first calibration disc and the second calibration disc according to the principle of two points and one line, and the central lines of all the nozzles have cross points with the plumb line in the spatial position;
the cone end of the nozzle checking cone is of a pointed structure, the other end of the nozzle checking cone is of a threaded nut structure of the nozzle, the nozzle checking cone can be directly screwed on a nozzle base to see whether the cone tip is crossed with a plumb line or not, or whether a vertical projection point of the cone tip falls on the plumb line or not is checked, and whether the spraying angle (angle a) of each nozzle is correct or not can be checked;
a thin straight iron wire is arranged on the nozzle along the groove of the nozzle, and whether the deflection angle (angle b) of the nozzle is correct or not can be verified by detecting the included angle between the iron wire and the plumb line.
The invention has the following beneficial effects: the high-pressure water descaling header injection angle calibration method can calibrate the injection angle of the descaling header before the descaling header is used; the design structure is simple, and the checking accuracy of the nozzle (injection) angle of the collecting pipe is high; the calibration is convenient, the angles of all the nozzles can be calibrated one by one, the nozzles can be checked by sampling, and the nozzles can be calibrated by one-time visual inspection through the pulled plumb line; and the mounting welding positioning of the nozzle base in the header manufacturing stage can also be used.
Drawings
FIG. 1 is a schematic view of the overall structure of a high-pressure water descaling header nozzle angle checking tool according to the present invention;
FIG. 2 is a schematic view of the structure of direction A in FIG. 1;
FIG. 3 is a schematic view showing the construction of a high pressure water descaling manifold according to the present invention;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic view of the structure of FIG. 3 along direction B;
FIG. 6 is a block diagram of a high pressure water descaling header nozzle angle verification method of the present invention;
fig. 7 is a side view of fig. 6.
Wherein: 1. the device comprises a hammer line, 2, a calibration disc, 3, a positioning key, 4, a nozzle checking cone, 5, a calibration disc, 6, a positioning pin, 7, a fixing bolt, 8, a fixing screw, 9, a header installation positioning key groove, 10, a descaling header, 11, a nozzle base, 12, a nozzle, 13 and a header water inlet end flange.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the high-pressure water descaling header nozzle angle calibration tool comprises a plumb line 1, a first calibration disc 2, a nozzle calibration cone 4 and a second calibration disc 5, wherein the plumb line 1 is arranged between V-shaped reference points at the upper ends of the first calibration disc 2 and the second calibration disc 5, two ends of the plumb line 1 are located on the outer sides of the first calibration disc 2 and the second calibration disc 5, and the plumb line 1 is provided with two nozzle calibration cones 4.
The calibration disc I2 is provided with a positioning key 3 and a fixing screw 8.
And the second calibration disc 5 is provided with a positioning pin 6 and a fixing bolt 7.
The cone end of the nozzle validation cone 4 is of a pointed structure, and the other end of the nozzle validation cone 4 is of a threaded nut structure.
As shown in fig. 3-5, the high-pressure water descaling manifold device comprises a descaling manifold 10, nozzles 12, nozzle bases 11, a manifold water inlet end flange 13 and a manifold mounting and positioning key groove 9, wherein the descaling manifold 10 is welded with the nozzle bases 11, the nozzles 12 are fixed on the nozzle bases 11 through nuts, the manifold mounting and positioning key groove 9 is arranged at one end of the descaling manifold 10, and the manifold water inlet end flange 13 is arranged at the other end of the descaling manifold 10.
The nozzle base 11 is welded and positioned on the dephosphorization header 10 with strict requirements on the spraying angle (a), the distance and the deflection angle (b).
On the section of the circumferential position of the dephosphorization manifold 10 where each nozzle base 11 is located, the angle between the nozzle center line and the dephosphorization manifold section vertical center line (the dephosphorization manifold section vertical center line is also the center line of the dephosphorization manifold 10 installation positioning key 9 and is also called as the dephosphorization manifold 10 installation positioning reference line) is a (also called as the spray angle a), the descaling manifold 10 manifold water inlet end flange 13 and the descaling system water supply pipe flange are fixedly connected by bolts, and the bolt holes are symmetrically arranged by the manifold installation center line.
As shown in fig. 6 and 7, a high pressure water descaling header nozzle angle verifying method comprises the following steps:
the calibration disc I2 is arranged in a dephosphorization header installation positioning key groove 9 through a positioning key 3 and is fixed by a fixing screw 8, the calibration disc II 5 is arranged in a dephosphorization header water inlet end flange 13 connection fixing bolt hole through a fixing bolt 6 and is fixed by a bolt 7, two V-shaped reference points of the calibration disc I2 and the calibration disc II 5 deviate from the dephosphorization header installation central line at an angle of a degrees, namely the central line of the V-shaped reference point is superposed with the central line of a nozzle, a plumb line 1 is pulled between the V-shaped reference points on the calibration disc I2 and the calibration disc II 5 according to the principle of two points and one line, and the central lines of all the nozzles 12 have cross points with the plumb line 1 in the spatial position;
the cone end of the nozzle checking cone 4 is a pointed structure, the other end of the nozzle checking cone 4 is a threaded nut structure of the nozzle, and the nozzle checking cone can be directly screwed on the nozzle base 11 to see whether the cone tip is crossed with the plumb line 1 or to check whether the vertical projection point of the cone tip falls on the plumb line 1, so that whether the spraying angle (angle a) of each nozzle 12 is correct can be checked;
a thin straight iron wire is placed on the nozzle 12 along the groove of the nozzle, and whether the deflection angle (b angle) of the nozzle 12 is correct or not can be verified by detecting the included angle between the iron wire and the plumb line 1.
The invention can check the spray angle of the descaling header before the descaling header is used; the design structure is simple, and the checking accuracy of the nozzle (injection) angle of the collecting pipe is high; the check is convenient, the angles of all the nozzles can be checked one by one, the nozzles can be checked by sampling, and the nozzles can be checked by one-time visual check through the pulled plumb line; and the mounting welding positioning of the nozzle base in the header manufacturing stage can also be used.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (2)
1. A high-pressure water descaling header nozzle angle checking method is characterized in that,
the high-pressure water descaling header nozzle angle checking tool comprises a hammerhead, a first calibration disc, a nozzle checking cone and a second calibration disc, wherein the hammerhead is arranged between V-shaped datum points at the upper ends of the first calibration disc and the second calibration disc, two ends of the hammerhead are positioned at the outer sides of the first calibration disc and the second calibration disc, and the hammerhead is provided with two nozzle checking cones; the first calibration disc is provided with a positioning key and a fixing screw, and the second calibration disc is provided with a positioning pin and a fixing bolt;
the high-pressure water descaling header device comprises a descaling header, nozzles, nozzle bases, a header water inlet end flange and a header installation positioning key groove, wherein the descaling header is welded with a plurality of nozzle bases, the nozzles are fixed on the nozzle bases through nuts, the header installation positioning key groove is arranged at one end of the descaling header, and the header water inlet end flange is arranged at the other end of the descaling header;
the method comprises the following steps: the calibration disc I is arranged in a header installation positioning key groove through a positioning key and is fixed by a fixing screw, the calibration disc II is arranged on a header water inlet end flange through a fixing bolt, two V-shaped datum points of the calibration disc I and the calibration disc II deviate from the installation center line a-degree of the descaling header, namely the center line of the V-shaped datum point is superposed with the center line of a nozzle, a plumb line is pulled between the V-shaped datum points on the calibration disc I and the calibration disc II according to the principle of two points and one line, and the center lines of all the nozzles have cross points with the plumb line in the space position; the cone end of the nozzle checking cone is of a pointed structure, the other end of the nozzle checking cone is of a threaded nut structure of the nozzle, the nozzle checking cone can be directly screwed on the nozzle base, and whether the cone tip is crossed with the plumb line or not can be checked to determine whether the spraying angle of each nozzle is correct or not; a thin straight iron wire is arranged on the nozzle along the groove of the nozzle, and whether the deflection angle of the nozzle is correct or not can be checked by detecting the included angle between the iron wire and the plumb line.
2. The high pressure water descaling header nozzle angle verifying method according to claim 1, wherein: the nozzle base is installed, welded and positioned on the descaling header pipe and has strict requirements on the spraying angle, the distance and the deflection angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902438.4A CN112170510B (en) | 2020-09-01 | 2020-09-01 | High-pressure water descaling header nozzle angle calibration tool and calibration method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010902438.4A CN112170510B (en) | 2020-09-01 | 2020-09-01 | High-pressure water descaling header nozzle angle calibration tool and calibration method |
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| CN112170510A CN112170510A (en) | 2021-01-05 |
| CN112170510B true CN112170510B (en) | 2022-08-02 |
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| CN113375531B (en) * | 2021-05-14 | 2023-11-03 | 南京钢铁股份有限公司 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163011A (en) * | 1983-03-08 | 1984-09-14 | Sumitomo Metal Ind Ltd | Method for descaling hot slab |
| KR100496607B1 (en) * | 2000-12-27 | 2005-06-22 | 주식회사 포스코 | Method And Device For Manufacturing A Hot Rolled Steel Strip |
| KR20090004731U (en) * | 2007-11-14 | 2009-05-19 | 현대제철 주식회사 | Jig for measuring descaler nozzle angle |
| CN201532318U (en) * | 2009-09-28 | 2010-07-21 | 上海梅山钢铁股份有限公司 | Calibrating apparatus for headers and spraying nozzles of hot-rolling descaler |
| CN102814607B (en) * | 2011-06-09 | 2015-01-14 | 中国钢铁股份有限公司 | Method and auxiliary device for precise positioning of welded type nozzles |
| CN202290807U (en) * | 2011-09-30 | 2012-07-04 | 鞍钢股份有限公司 | An adjustable high pressure water descaling device |
| GB2514599B (en) * | 2013-05-30 | 2015-07-08 | Siemens Vai Metals Tech Gmbh | Adjustable descaler |
| CN204182697U (en) * | 2014-07-07 | 2015-03-04 | 宝山钢铁股份有限公司 | A kind of water under high pressure header device |
| CN205966796U (en) * | 2016-08-25 | 2017-02-22 | 北京冶自欧博科技发展有限公司 | Steel sheet surface oxidation iron sheet sweeps device |
| CN108318016A (en) * | 2018-01-24 | 2018-07-24 | 成都睿铂科技有限责任公司 | A kind of mapping mark post based on plane calibration |
| CN208178104U (en) * | 2018-04-19 | 2018-12-04 | 二重（德阳）重型装备有限公司 | The upper header device of nozzle can be replaced online |
| CN110639969A (en) * | 2018-12-14 | 2020-01-03 | 广东韶钢松山股份有限公司 | Deflection angle positioning tool for medium plate descaling header nozzle and application thereof |
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