CN113932755A - Annular overflow furnace nose parallelism detection device and detection method - Google Patents
Annular overflow furnace nose parallelism detection device and detection method Download PDFInfo
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- CN113932755A CN113932755A CN202111142356.5A CN202111142356A CN113932755A CN 113932755 A CN113932755 A CN 113932755A CN 202111142356 A CN202111142356 A CN 202111142356A CN 113932755 A CN113932755 A CN 113932755A
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- tundish
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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Abstract
The invention provides a device and a method for detecting the parallelism of a nose of an annular overflow furnace, which comprises a transverse detection mechanism and a longitudinal detection mechanism, wherein the transverse detection mechanism comprises an A-shaped clamp, a transverse level gauge and a transverse hanging plate; the longitudinal detection mechanism comprises a triangular clamp, a support plate, a longitudinal level gauge and longitudinal hanging plates, wherein the support plate is arranged at the tip end of the triangular clamp, the longitudinal level gauge is arranged on the support plate, and the two longitudinal hanging plates are respectively arranged at two foot ends of the triangle and are arranged on a lip strip on one side of the tundish.
Description
Technical Field
The invention belongs to the technical field of metallurgical steel rolling machinery, and particularly relates to a device and a method for detecting parallelism of an annular overflow furnace nose.
Background
From the development of automobile sheets, zinc ash defects produced by hot galvanizing gradually appear, the surface quality of the automobile sheets is high, and O5 sheets without defects are required to be produced, so that research and a series of measures are taken to solve the problems. In the production of high-grade galvanized automobile plates, the traditional slag-discharging furnace nose is difficult to discharge fine zinc ash in time due to insufficient zinc liquid overflow fluidity on the two sides and the lower surface of strip steel, so that the defects of zinc ash such as slag spot and the like are generated, the condition is particularly prominent in the production of wide-width galvanized plates, and the annular overflow (double-sided overflow) furnace nose is produced. The furnace nose zinc liquid has good fluidity and good ash discharge effect, and has good effects of improving the quality of a wide-plate hot-dip galvanized GI outer plate and reducing the defect of zinc ash point slag. In order to facilitate online position adjustment, the annular overflow (double-sided overflow) furnace nose usually adopts a split structure, and the lower part of the furnace nose body is connected with a cofferdam structure capable of adjusting the plane precision of an overflow lip, namely a so-called furnace nose tundish. The tundish is a cofferdam structure formed by thin plates and used for isolating the inner liquid level and the outer liquid level of the zinc pot, when the zinc pump works, the liquid level of the zinc pot overflows into the annular groove, and zinc ash in the inner part of the furnace nose is discharged into the outer zinc pot along with the zinc pump and leaves the zinc pot along with the slag.
The annular overflow furnace nose has higher requirements on the stability and uniformity of the flow of the zinc liquid on two sides of the strip steel, the general fluctuation cannot be larger than 1mm, otherwise, the overflow ash discharge cannot meet the requirements. The overflow precision of the furnace nose is closely related to the manufacturing quality of the tundish, and how to control the flatness of the lip of the tundish and the position degree of the zinc pump plays an important role in improving the overflow precision of the furnace nose and the interchangeability of the tundish.
In order to facilitate field installation and adjustment, the annular overflow furnace nose is usually designed into a tundish split structure, during installation, flatness errors of the overflow lip are detected, the positions of four screw rods for hanging the tundish are adjusted according to a measurement result, and the overflow lip is kept horizontal, so that the stability and uniformity of double-sided overflow of the furnace nose are promoted. But the tundish belongs to an inclined special-shaped body, the structure is complex, the precision requirement is high, and the existing detection means is difficult to complete.
Disclosure of Invention
The invention aims to solve the technical problems and provides a device and a method for detecting the parallelism of an annular overflow furnace nose.
The technical scheme adopted by the invention for solving the technical problems is as follows: the nose parallelism detection device of the annular overflow furnace is characterized by comprising a transverse detection mechanism and a longitudinal detection mechanism, wherein the transverse detection mechanism comprises an A-shaped clamp, a transverse level gauge and a transverse hanging plate, the transverse level gauge is arranged at the bottom of the A-shaped clamp, the transverse hanging plate is arranged at the top of the A-shaped clamp, and two sides of the transverse hanging plate are arranged on two lip strips of a tundish; the longitudinal detection mechanism comprises a triangular clamp, a support plate, a longitudinal level and two longitudinal hanging plates, wherein the support plate is arranged at the tip end of the triangular clamp, the longitudinal level is arranged on the support plate, and the two longitudinal hanging plates are respectively arranged at two foot ends of the triangle and are arranged on a single-side lip strip of the tundish.
According to the scheme, the A-shaped clamp is composed of a horizontal bottom plate, an inclined plate and an intermediate plate, the horizontal hanging plate is arranged at the top of the inclined plate, and the horizontal level meter is arranged on the horizontal bottom plate.
According to the scheme, the inclination angle of the inclined plate is the same as that of the tundish.
According to the scheme, the stop block is arranged at the outer side end of the longitudinal hanging plate to prevent the longitudinal hanging plate from falling off.
The detection method of the annular overflow furnace nose parallelism detection device is characterized by comprising the following steps of:
s1) detecting the parallelism of two lip strips of the tundish: placing the transverse hanging plate of the transverse detection device on the two lip strips of the tundish for hanging the transverse detection device, observing the display condition of a transverse level meter, adjusting four hanging bolts at the position of a zinc pump to enable the transverse level meter to display a standard horizontal position, and repeatedly carrying out multi-point measurement until the two lip strips are parallel;
s2) detecting the straightness of the single-side lip strip: the longitudinal hanging plate of the longitudinal detection device is hung on the lip strip on one side, the display condition of the longitudinal level meter is observed, the hanging bolts at the zinc pump positions on two sides are adjusted, the longitudinal level meter is enabled to display a standard horizontal position, and multi-point measurement is repeated until the lip strip is horizontal.
The invention has the beneficial effects that: the transverse detection device is used for detecting the parallelism of two lip strips of an overflow groove of a tundish, the longitudinal detection device is used for detecting the straightness of each lip strip, and the installation precision of the tundish is guided and adjusted by measuring the vertical and horizontal deviations of the lip of the tundish, so that the manufacturing quality of the tundish can be effectively controlled, the installation precision is guaranteed, the interchangeability of spare parts is improved, the overflow precision of the furnace nose is improved, the ash discharge effect is promoted, and the judgment rate of the zinc ash defect of an outer plate of an automobile is reduced.
Drawings
Fig. 1 is a side view of a lateral inspection device according to an embodiment of the present invention.
Fig. 2 is a front view of a lateral detecting apparatus according to an embodiment of the present invention.
Fig. 3 is a top view of a lateral inspection device according to an embodiment of the present invention.
Fig. 4 is a front view of a longitudinal direction detecting apparatus according to an embodiment of the present invention.
FIG. 5 is a side view of a longitudinal inspection device according to one embodiment of the present invention.
FIG. 6 is a top view of a longitudinal detection device according to an embodiment of the present invention
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1-6, a nose parallelism detection device for an annular overflow furnace comprises a transverse detection mechanism and a longitudinal detection mechanism, wherein the transverse detection mechanism comprises an A-shaped clamp 1, a transverse level 2 and a transverse hanging plate 3, the transverse level is arranged at the bottom of the A-shaped clamp, the transverse hanging plate is arranged at the top of the A-shaped clamp, and two sides of the transverse hanging plate are arranged on two lip strips of a tundish; the longitudinal detection mechanism comprises a triangular clamp 4, a support plate 5, a longitudinal level 6 and longitudinal hanging plates 7, the support plate is arranged at the tip end of the triangular clamp, the longitudinal level is arranged on the support plate, and the two longitudinal hanging plates are respectively arranged at two foot ends of the triangle and are arranged on a single-side lip strip of the tundish.
The A-shaped clamp consists of a horizontal bottom plate 8, an inclined plate 9 and a middle plate 10, a transverse hanging plate is arranged at the top of the inclined plate, and a transverse level gauge is arranged on the horizontal bottom plate.
The inclined angle of the inclined plate is the same as that of the tundish so as to freely move in the middle of the cofferdam.
The outside end of the longitudinal hanging plate is provided with a stop block 11 to prevent the longitudinal hanging plate from falling off.
A detection method of a nose parallelism detection device of an annular overflow furnace comprises the following steps:
s1) detecting the parallelism of two lip strips of the tundish: the horizontal hanging plate of the horizontal detection device is placed on the two lip strips of the tundish and used for hanging the horizontal detection device, the display condition of the horizontal level meter is observed, four hanging bolts at the position of the zinc pump are adjusted, the horizontal level meter is enabled to display a standard horizontal position, and multi-point measurement is repeated until the two lip strips are parallel.
S2) detecting the straightness of the single-side lip strip: the longitudinal hanging plate of the longitudinal detection device is hung on the lip strip on one side, the display condition of the longitudinal level meter is observed, the hanging bolts at the zinc pump positions on two sides are adjusted, the longitudinal level meter is enabled to display a standard horizontal position, and multi-point measurement is repeated until the lip strip is horizontal.
The purpose of adjusting the flatness of the whole overflow lip can be achieved by adjusting the straightness of each overflow lip of the tundish and the parallelism of the two side lips. According to the requirement of balanced and stable overflow of zinc liquid at the nose of the galvanized wire furnace, the flatness error of the overflow lip is less than or equal to +/-1 mm. After the installation adjustment of the tundish reaches the precision requirement, the positioning bolt is fastened, and the online work is started.
The present invention is illustrated by the above examples, and is not limited to the embodiments of the present invention, and the structure, the position arrangement and the connection of the components may be changed. On the basis of the present invention, any changes or equivalent changes of the individual components according to the principle of the present invention should not be excluded from the scope of the present invention.
Claims (5)
1. The nose parallelism detection device of the annular overflow furnace is characterized by comprising a transverse detection mechanism and a longitudinal detection mechanism, wherein the transverse detection mechanism comprises an A-shaped clamp, a transverse level gauge and a transverse hanging plate, the transverse level gauge is arranged at the bottom of the A-shaped clamp, the transverse hanging plate is arranged at the top of the A-shaped clamp, and two sides of the transverse hanging plate are arranged on two lip strips of a tundish; the longitudinal detection mechanism comprises a triangular clamp, a support plate, a longitudinal level and two longitudinal hanging plates, wherein the support plate is arranged at the tip end of the triangular clamp, the longitudinal level is arranged on the support plate, and the two longitudinal hanging plates are respectively arranged at two foot ends of the triangle and are arranged on a single-side lip strip of the tundish.
2. The apparatus of claim 1, wherein the fixture comprises a horizontal base plate, an inclined plate and a middle plate, the horizontal hanging plate is disposed on the top of the inclined plate, and the horizontal level gauge is disposed on the horizontal base plate.
3. The apparatus of claim 2, wherein the inclination angle of the inclined plate is the same as the inclination angle of the tundish.
4. The apparatus according to claim 1 or 3, wherein a stop is disposed at an outer side end of the longitudinal hanging plate to prevent the longitudinal hanging plate from falling off.
5. The detection method of the annular overflow furnace nose parallelism detection device in the claim 3 is characterized by comprising the following steps:
s1) detecting the parallelism of two lip strips of the tundish: placing the transverse hanging plate of the transverse detection device on the two lip strips of the tundish for hanging the transverse detection device, observing the display condition of a transverse level meter, adjusting four hanging bolts at the position of a zinc pump to enable the transverse level meter to display a standard horizontal position, and repeatedly carrying out multi-point measurement until the two lip strips are parallel;
s2) detecting the straightness of the single-side lip strip: the longitudinal hanging plate of the longitudinal detection device is hung on the lip strip on one side, the display condition of the longitudinal level meter is observed, the hanging bolts at the zinc pump positions on two sides are adjusted, the longitudinal level meter is enabled to display a standard horizontal position, and multi-point measurement is repeated until the lip strip is horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111142356.5A CN113932755A (en) | 2021-09-28 | 2021-09-28 | Annular overflow furnace nose parallelism detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111142356.5A CN113932755A (en) | 2021-09-28 | 2021-09-28 | Annular overflow furnace nose parallelism detection device and detection method |
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| CN113932755A true CN113932755A (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111142356.5A Pending CN113932755A (en) | 2021-09-28 | 2021-09-28 | Annular overflow furnace nose parallelism detection device and detection method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150528Y (en) * | 1993-01-08 | 1993-12-22 | 杨炎煌 | Level with clamp structure |
| CN204854727U (en) * | 2014-11-11 | 2015-12-09 | 贵州中烟工业有限责任公司 | Horizontal detection device |
| CN105544663A (en) * | 2016-01-06 | 2016-05-04 | 中山市雅西环保科技有限公司 | Positioning installation device for shower faucet |
| CN110966984A (en) * | 2018-09-29 | 2020-04-07 | 宝钢新日铁汽车板有限公司 | Furnace nose level monitoring system and method based on visual images |
| CN212409693U (en) * | 2020-08-11 | 2021-01-26 | 吕坤 | Wall-mounted level |
| CN112432672A (en) * | 2020-11-24 | 2021-03-02 | 黄河水利委员会黄河水利科学研究院 | Portable flow measuring device of pivot angle |
-
2021
- 2021-09-28 CN CN202111142356.5A patent/CN113932755A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150528Y (en) * | 1993-01-08 | 1993-12-22 | 杨炎煌 | Level with clamp structure |
| CN204854727U (en) * | 2014-11-11 | 2015-12-09 | 贵州中烟工业有限责任公司 | Horizontal detection device |
| CN105544663A (en) * | 2016-01-06 | 2016-05-04 | 中山市雅西环保科技有限公司 | Positioning installation device for shower faucet |
| CN110966984A (en) * | 2018-09-29 | 2020-04-07 | 宝钢新日铁汽车板有限公司 | Furnace nose level monitoring system and method based on visual images |
| CN212409693U (en) * | 2020-08-11 | 2021-01-26 | 吕坤 | Wall-mounted level |
| CN112432672A (en) * | 2020-11-24 | 2021-03-02 | 黄河水利委员会黄河水利科学研究院 | Portable flow measuring device of pivot angle |
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