CN107084704B - Blast furnace skew detection method - Google Patents
Blast furnace skew detection method Download PDFInfo
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- CN107084704B CN107084704B CN201610085766.3A CN201610085766A CN107084704B CN 107084704 B CN107084704 B CN 107084704B CN 201610085766 A CN201610085766 A CN 201610085766A CN 107084704 B CN107084704 B CN 107084704B
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- blast furnace
- furnace
- blast
- data group
- detection method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention relates to a kind of blast furnace skew detection methods, the following steps are included: providing a blast furnace and a range unit, the blast furnace is set on a blast furnace base, and the blast furnace has a furnace interior, at least a blast orifice and a charge level machinery plummet, the blast orifice is connected to the furnace interior, the charge level machinery plummet is placed in the furnace interior via the blast orifice perpendicular to the blast furnace base, the range unit；The furnace interior is scanned using the range unit, to obtain an outline data group of the furnace interior；Outline data group and a blast furnace original design machine drawing are overlapped, so that outline data group and the blast furnace original design machine drawing are located on same coordinate；A furnace body center line is found out using outline data group；And calculate the depth of parallelism of the furnace body center line Yu the charge level machinery plummet, with assess the blast furnace whether deflection.
Description
Technical field
The present invention relates to a kind of blast furnace detection method, in particular to a kind of blast furnace skew detection method.
Background technique
Blast furnace ironmaking is always the main processing procedure for producing molten iron because having the advantage of high efficiency Yu high production capacity for a long time.
High furnace volume now is greater than 3000 cubic metres easily, therefore can be considered huge high temperature, a high pressure reaction system.
In blast furnace ironmaking processing procedure, iron-bearing material and coke (reducing agent) are added portionwise in furnace via distributing trough, and in height
The bed of material of different ore coke ratio distributions is formed in furnace.During charging, roof material distributing slot can be according to the angle of different set, with furnace
Center be axle center rotary unloading, with ensure the bed of material circumferentially be distributed as symmetry status.Once there is serious circumference in charge level
Imbalance, State of Blast Furnace flow of air and material feeding will appear non-uniform phenomenon, and directly affect the production efficiency of blast furnace.
Since blast furnace is located to operate under high temperature and pressure for a long time, therefore deflection and partially may occur in furnace body and blanking system
It moves, and then influences the circumferential uniformity of the bed of material.Therefore it is necessary to carry out deflection detection to blast furnace, but it is high to have no assessment at present
The effective ways of furnace body deflection.
Therefore, it is necessary to provide an innovation and have the blast furnace skew detection method of progressive, to solve the above problems.
Summary of the invention
The present invention provides a kind of blast furnace skew detection method, comprising the following steps: provides a blast furnace and a survey
Away from device, which is set on a blast furnace base, and the blast furnace has a furnace interior, at least a blast orifice and one
Charge level machinery plummet, the blast orifice are connected to the furnace interior, and the charge level machinery plummet is perpendicular to the blast furnace base, range unit warp
The furnace interior is placed in by the blast orifice；The furnace interior is scanned using the range unit, to obtain an outline data of the furnace interior
Group；Outline data group and a blast furnace original design machine drawing are overlapped, so that outline data group and the blast furnace original design
Machine drawing is located on same coordinate；A furnace body center line is found out using outline data group；And calculate the furnace body center line with
The depth of parallelism of the charge level machinery plummet, with assess the blast furnace whether deflection.
The present invention establishes assessment actual achievement in more seat height furnaces inside middle steel, to blast furnace deflection and lower discharge position
Assessment provide standard set work flow, and resulting assessment result can be used as the important ginseng of blast furnace operation personnel maintenance
Examine foundation.
In order to better understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification, and
It is special below to lift preferred embodiment in order to allow objects, features and advantages of the present invention can be more clearly understood, and cooperate attached drawing,
Detailed description are as follows.
Detailed description of the invention
Fig. 1 is the flow chart of blast furnace skew detection method of the present invention；
Fig. 2 is the diagrammatic cross-section of the blast furnace in method of the invention；
Fig. 3 is the distribution map of the outline data group of furnace interior of the present invention Yu the data group of charge level machinery plummet；
Fig. 4 A to 4C is the measurement section profile data and original design section of the characteristic area B1, B2, B3 of Fig. 2 respectively
The out of roundness of profile compares figure；
Fig. 5 is the present invention scanning resulting cross section data group distribution map of blast furnace roof.
Specific embodiment
Fig. 1 is the flow chart of blast furnace skew detection method of the present invention.Fig. 2 is the State of Blast Furnace in method of the invention
The diagrammatic cross-section of body.The step S11 and Fig. 2 of cooperation refering to fig. 1, provide a blast furnace 10 and a range unit 20.
The blast furnace 10 is set on a blast furnace base 30, and the blast furnace 10 has a furnace interior 11, at least one
Blast orifice 12, a charge level machinery plummet 13 and a feeder pipe 14.The blast orifice 12 and the feeder pipe 14 are connected to the furnace interior 11.It should
Charge level machinery plummet 13 is perpendicular to the blast furnace base 30.
The range unit 20 is placed in the furnace interior 11 via the blast orifice 12.In the present embodiment, which is
Three-dimensional laser range unit.
Fig. 3 is the distribution map of the outline data group of furnace interior of the present invention Yu the data group of charge level machinery plummet.Cooperation refering to
Step S12, Fig. 2 and Fig. 3 of Fig. 1 scans the furnace interior 11 using the range unit 20, to obtain a profile of the furnace interior 11
Data group.In this step, which separately scans the feeder pipe 14, to obtain the data group of the feeder pipe 14.In addition,
The range unit 20 also scans the charge level machinery plummet 13, to obtain the data group of the charge level machinery plummet 13 as vertical reference
Index.
In addition, in the present embodiment, outline data group includes multiple section profile data, and the respectively section profile data
With a centre point.
The step S13 and Fig. 2 of cooperation refering to fig. 1, outline data group and a blast furnace original design machine drawing are overlapped, with
It is located in outline data group and the blast furnace original design machine drawing on same coordinate.It in this step, can be to the number of contours
One circumferentially assess according to these section profile data of group, this circumferentially assess include compare these section profile data and
Whether the out of roundness of original design section profile circumferentially meets original design with confirm the grade section profiles data.
The step S14 and Fig. 2 of cooperation refering to fig. 1, find out a furnace body center line L using outline data group.In this step
In, furnace body center line L is formed according to the centre point line of at least two section profile data.
The step S15 and Fig. 2 of cooperation refering to fig. 1, it is parallel with the charge level machinery plummet 13 to calculate the furnace body center line L
Degree, with assess the blast furnace 10 whether deflection.In this step, it can also inspect whether furnace body center line L passes through the blanking
The center of 14 metric data group of pipe, to assess whether the position of the feeder pipe 14 deviates.
It is described in detail the present invention with following Examples, but does not mean that present invention is limited only by these examples are revealed
Content.
Embodiment
Referring again to Fig. 2, when which scans, it is desirable that the charge level machinery plummet 13 of furnace roof is dropped to 20 meters by scene
Position, as the vertical index of furnace body.When filler material operates, which is placed in furnace roof and enters hole progress charge level measurement.
After the range unit 20 scanning, selected characteristic region B1, B2, B3 are former by resulting outline data group and blast furnace
The design that begins machine drawing overlapping, is placed in outline data group and machine drawing on same coordinate.Example of the present invention chooses furnace bosh and bosh
As the foundation of folded figure, the assessment of repairing area circumferentially is then carried out after completing folded figure.
Refering to Fig. 4 A to 4C, the measurement section profile data and original of the characteristic area B1, B2, B3 of Fig. 2 are shown respectively
The beginning out of roundness of design profile profile compares figure.By Fig. 4 A into 4C, it is possible to find the measurement section profile proper circle in 3 spray repair regions
Degree matches with original design section profile out of roundness, and confirmation spray repair region circumferentially meets original design.
Under the splendid situation of the out of roundness of section profile, the centre point of section can be calculated (in such as Fig. 4 A, 4B, 4C
Centre point), and link as furnace body center line.As previously mentioned, require to put down charge level machinery plummet when measuring, and this charge level machine
Tool plummet must be perpendicular to furnace body base, therefore the depth of parallelism relationship of furnace body center line and charge level machinery plummet can be used as furnace body
The foundation of deflection assessment.The depth of parallelism that the present embodiment calculates resulting furnace body center line and charge level machinery plummet is good, and same
Under elevation, distance is consistent with furnace centre distance with blast furnace original design plummet at 3.5 meters, confirms blast furnace not deflection.
It is the present invention scanning resulting cross section data group distribution map of blast furnace roof refering to Fig. 5.As shown in Figure 5, furnace body
Center line (direction z) passes through circular central position in distribution map in two, the direction x-y reference axis, and this circular data group is height
The feeder pipe of furnace furnace roof clearly shows that the centre bit of feeder pipe on furnace body center line, shows blanking system in furnace centre bit
The design set is not deviated because of operation.
Above-described embodiment is only to illustrate the principle of the present invention and its effect, the not limitation present invention, therefore art technology
Personnel modify to above-described embodiment and change the spirit of the still not de- present invention.
Description of symbols
10 blast furnaces
11 furnace interiors
12 blast orifices
13 charge level machinery plummets
14 feeder pipes
20 range units
30 blast furnace bases
B1, B2, B3 characteristic area
L furnace body center line
S11 ~ S15 step.
Claims (8)
1. a kind of blast furnace skew detection method, comprising the following steps:
(a) it provides a blast furnace and a range unit, the blast furnace is set on a blast furnace base, and the blast furnace has
There are a furnace interior, at least a blast orifice and a charge level machinery plummet, the blast orifice to be connected to the furnace interior, which hangs down
Directly in the blast furnace base, which is placed in the furnace interior via the blast orifice；
(b) furnace interior is scanned using the range unit, to obtain an outline data group of the furnace interior；
(c) outline data group and a blast furnace original design machine drawing are overlapped, so that outline data group and the blast furnace are original
Design machine drawing is located on same coordinate；
(d) a furnace body center line is found out using outline data group；And
(e) calculate the depth of parallelism of the furnace body center line Yu the charge level machinery plummet, with assess the blast furnace whether deflection.
2. blast furnace skew detection method as described in claim 1, which is characterized in that
The range unit of step (a) is laser ranging system.
3. blast furnace skew detection method as described in claim 1, which is characterized in that
It further include obtaining the data group of the charge level machinery plummet as vertical reference index in step (b).
4. blast furnace skew detection method as described in claim 1, which is characterized in that
The blast furnace has a feeder pipe, and the range unit of step (b) also scans the feeder pipe, to obtain the feeder pipe
Data group.
5. blast furnace skew detection method as described in claim 1, which is characterized in that
Outline data group includes multiple section profile data, further includes carrying out one to these section profile data in step (c)
It circumferentially assesses, circumferentially whether meets original design with confirm these section profile data.
6. blast furnace skew detection method as claimed in claim 5, which is characterized in that
It includes the out of roundness for comparing these section profile data and original design section profile that this, which is circumferentially assessed,.
7. blast furnace skew detection method as described in claim 1, which is characterized in that
Outline data group includes multiple section profile data, and respectively the section profile data have a centre point, and step (d) is somebody's turn to do
Furnace body center line is formed according to the centre point line of at least two section profile data.
8. blast furnace skew detection method as described in claim 1, which is characterized in that
The blast furnace has a feeder pipe, and step (e) further includes the amount inspected the furnace body center line and whether pass through the feeder pipe
The center of the data group of survey, to assess whether the position of the feeder pipe deviates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085766.3A CN107084704B (en) | 2016-02-15 | 2016-02-15 | Blast furnace skew detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085766.3A CN107084704B (en) | 2016-02-15 | 2016-02-15 | Blast furnace skew detection method |
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| Publication Number | Publication Date |
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| CN107084704A CN107084704A (en) | 2017-08-22 |
| CN107084704B true CN107084704B (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610085766.3A Expired - Fee Related CN107084704B (en) | 2016-02-15 | 2016-02-15 | Blast furnace skew detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111750831A (en) * | 2019-03-26 | 2020-10-09 | 中冶建筑研究总院有限公司 | Method for measuring inclination rate of cylinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013159800A (en) * | 2012-02-02 | 2013-08-19 | Nippon Steel & Sumitomo Metal Corp | Apparatus and method for measuring wall profile of blast furnace and method for detecting wear amount of blast furnace wall |
| CN104197894A (en) * | 2014-07-02 | 2014-12-10 | 同济大学 | Tower inclination measure method based on circle fitting |
| CN104330073A (en) * | 2014-11-08 | 2015-02-04 | 鞍钢集团工程技术有限公司 | Method for measuring gradient of chimney |
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2016
- 2016-02-15 CN CN201610085766.3A patent/CN107084704B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013159800A (en) * | 2012-02-02 | 2013-08-19 | Nippon Steel & Sumitomo Metal Corp | Apparatus and method for measuring wall profile of blast furnace and method for detecting wear amount of blast furnace wall |
| CN104197894A (en) * | 2014-07-02 | 2014-12-10 | 同济大学 | Tower inclination measure method based on circle fitting |
| CN104330073A (en) * | 2014-11-08 | 2015-02-04 | 鞍钢集团工程技术有限公司 | Method for measuring gradient of chimney |
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| CN107084704A (en) | 2017-08-22 |
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