CN105039621A - Burden surface profile measurement method for blast furnace - Google Patents
Burden surface profile measurement method for blast furnace Download PDFInfo
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- CN105039621A CN105039621A CN201510510498.0A CN201510510498A CN105039621A CN 105039621 A CN105039621 A CN 105039621A CN 201510510498 A CN201510510498 A CN 201510510498A CN 105039621 A CN105039621 A CN 105039621A
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Abstract
The invention discloses a burden surface profile measurement method of a blast furnace. The burden surface profile measurement method comprises the following steps: preparing equipment for later use, including a tripod and a laser rangefinder, assembling and fixing the laser rangefinder onto the tripod, opening an ignition manhole at the damping-down moment of the blast furnace, selecting a radial path capable of passing through the center of the blast furnace through the ignition manhole, and placing the tripod and the laser rangefinder which are assembled together in front of the ignition manhole; adjusting the laser rangefinder to enable measurement points to move onto the burden surface of the blast furnace, then sequentially measuring at least 20 points from the edge of the burden surface of the blast furnace to the center of the blast furnace in order, and recording the distances and the angles of all the measurement points; calculating the measured data through the sine function and the cosine function of an excel form and drawing a two-dimensional diagram; and analyzing the two-dimensional diagram to obtain such data as the burden surface profile, the central funnel depth, the platform width and the edge width. The burden surface profile measurement method is low in investment cost, simple to operate and high in practicability, and can accurately measure the burden surface profile of the blast furnace to facilitate condition stability, high efficiency and longevity of the blast furnace.
Description
Technical field
The invention belongs to electronic measurement technique and computer application field, be specifically related to a kind of method measuring blast furnace fabric shape.
Background technology
Iron And Steel Industry is the basic industry of national economy, in Iron and Steel Production, the working of a furnace run steady in a long-term is the prerequisite that blast furnace high yield and low cost increases the service life, blast furnace ironmaking carries out in an airtight container, physics is there is in stove, chemical process is extremely complicated, in stove, phenomenon and working of a furnace state cannot directly be observed, and burden distribution shape has relation very closely in conditions of blast furnace and stove, material level height, charging segregation situation, blanking velocity speed, whether collapse material hanging, to judging timely and accurately and forecasting that conditions of blast furnace has very important effect, therefore significant to the detection of furnace charge.
Traditionally the supervision of State of Blast Furnace charge level is generally only limitted to by mechanical chi image data, but exist can not continuously measured for mechanical stock rod, can not measure in cloth process; There is lubricating substance at blast furnace, sit material, can not tracking in time when subsiding, DATA REASONING error is large; Mounting means is restricted, can only at right angle setting; Control section is extremely complicated, and field maintemance amount is large, and maintenance cost is high; Because useful range is little, omnidistancely can not measure the height adding charge level etc. problem, in this case, in analytical furnace, the difficulty of burden distribution is larger, field worker often rule of thumb can only judge the distribution situation of charge level, and this is unfavorable for the Real-time Decision of execute-in-place.
The system and method that patent discloses a kind of on-line measurement blast furnace charge level of prior art Patent 201110307101.X, for detecting the charge level information in blast furnace, the patent No. be 200710064497.3 patent a kind of charge surface shape in blast dynamic solid Monitoring systems and detection method are disclosed, although the shape of blast furnace fabric that can survey of these two kinds of technical schemes above, but need to be equipped with data gathering, data transmission, signal feedback, the equipment such as image display, system complex, cost is higher, research and development are a kind of simple to operate, the method of local cheap measurement blast furnace fabric shape becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, there is provided a kind of method measuring blast furnace fabric shape, this measuring method is simple, and cost of investment is low, simple to operate, practical, can accurately measure charge surface shape in blast and key parameter, analyzing the working of a furnace for blast furnace operating person and adjust burden distribution matrix provides reliable basis, be conducive to the stable of conditions of blast furnace, high-efficiency long-life.
In order to solve above technical problem, the invention provides a kind of method measuring charge surface shape in blast, specifically comprising the following steps:
(1) get out pre-equipment and comprise trivet and laser ranger, and check that trivet and laser ranger guarantee normal adaptation, then laser ranger assembling is fixed on trivet;
(2) open ignition manhole when blast furnace staying, select the radial path by blast furnace center by ignition manhole, the trivet fitted together and laser ranger are placed on ignition manhole right on simultaneously;
(3) laser ranger is regulated to make the measurement point of laser ranger move on blast furnace charge level by the The Cloud Terrace on tripod, then the center from the edge of blast furnace charge level to blast furnace charge level is measured in order successively, the edge of blast furnace charge level at least measure 20 points in the heart, and the distance recorded between each measurement point to laser measuring apparatus, measure and record above-mentioned each measurement point and the angle between laser ranger line and horizontal plane;
Selecting known stockline to be the blast furnace throat steel brick lower edge of 1.8m or the point at middle part is reference point, datum mark to laser ranger distance and reference point and the angle between laser ranger line and horizontal plane;
(4) distance corresponding to the above-mentioned each measurement point measured and angle data are shown sine by excel, cosine function calculates horizontal throw and vertical range, calculates and draws X-Y scheme, being specifically calculated as follows:
Distance between measurement point horizontal throw=Cos (measurement point and the angle between laser ranger line and horizontal plane) * measurement point to laser measuring apparatus;
Distance between measurement point vertical range=Sin (measurement point and the angle between laser ranger line and horizontal plane) * measurement point to laser measuring apparatus;
Blast furnace charge level is from the horizontal throw of the horizontal throw-reference point of the distance/m=measurement point of furnace wall;
The stockline of the vertical range-reference point of the vertical range-reference point of stockline/m=measurement point;
With the stockline of each measurement point for ordinate zou, blast furnace charge level is that X-coordinate draws X-Y scheme from the distance of furnace wall;
(5) data of shape of charge level, the center funnel degree of depth and berm width are drawn according to the X-Y scheme analysis obtained;
Berm width is drawn in conjunction with figure by data analysis: the less part of stockline numerical value difference thought and be in same plane, using the distance of the X-direction of the X-Y scheme corresponding to this part numerical value as berm width;
The center funnel degree of depth is the difference of platform stockline and minimum stockline.
The technical scheme that the present invention limits further is:
Further, in the method for aforementioned measurement charge surface shape in blast, the height of trivet is regulated to make laser ranger in the radial path at blast furnace center
The invention has the beneficial effects as follows:
The present invention utilizes laser ranger to measure the shape of blast furnace charge level, required equipment is few, less investment, simple to operate, practical, solve the larger problem of charge surface shape in blast range estimation error, analyzing the working of a furnace for blast furnace operating person and adjust burden distribution matrix provides reliable basis, be conducive to conditions of blast furnace to stablize, high-efficiency long-life.
Accompanying drawing explanation
Fig. 1 is the present invention's X-Y scheme according to measurement point Plotting data when measuring charge surface shape in blast;
Embodiment
Embodiment 1
Measure a method for charge surface shape in blast, specifically comprise the following steps:
(1) get out pre-equipment and comprise trivet and laser ranger, and check that trivet and laser ranger guarantee normal adaptation, then laser ranger assembling is fixed on trivet;
(2) ignition manhole is opened when blast furnace staying, the radial path by blast furnace center is selected by ignition manhole, the trivet fitted together and laser ranger are placed on ignition manhole right on simultaneously, regulate the height of trivet to make laser ranger in the radial path at blast furnace center;
(3) laser ranger is regulated to make the measurement point of laser ranger move on blast furnace charge level by the The Cloud Terrace on tripod, then the center from the edge of blast furnace charge level to blast furnace charge level is measured in order successively, the edge of blast furnace charge level at least measure 20 points in the heart, and the distance recorded between each measurement point to laser measuring apparatus, measure and record above-mentioned each measurement point and the angle between laser ranger line and horizontal plane;
Selecting known stockline to be the blast furnace throat steel brick lower edge of 1.8m or the point at middle part is reference point, datum mark to laser ranger distance and reference point and the angle between laser ranger line and horizontal plane;
(4) distance corresponding to the above-mentioned each measurement point measured and angle data are shown sine by excel, cosine function calculates horizontal throw and vertical range, calculates and draws X-Y scheme, being specifically calculated as follows:
Distance between measurement point horizontal throw=Cos (measurement point and the angle between laser ranger line and horizontal plane) * measurement point to laser measuring apparatus;
Distance between measurement point vertical range=Sin (measurement point and the angle between laser ranger line and horizontal plane) * measurement point to laser measuring apparatus;
Blast furnace charge level is from the horizontal throw of the horizontal throw-reference point of the distance/m=measurement point of furnace wall;
The stockline of the vertical range-reference point of the vertical range-reference point of stockline/m=measurement point;
With the stockline of each measurement point for ordinate zou, blast furnace charge level is that X-coordinate draws X-Y scheme from the distance of furnace wall;
The present embodiment measure 28 measurement point and the data recording 28 measurement point as shown in table 1-1,1-2,1-3 and 1-4;
The data sheet 1-1 of record measurement point
The data sheet 1-2 of record measurement point
The data sheet 1-3 of record measurement point
The data sheet 1-4 of record measurement point
Data sheet according to record measurement point draws X-Y scheme, as shown in Figure 1;
(5) can analyze according to the X-Y scheme obtained the data drawing shape of charge level, the center funnel degree of depth and berm width intuitively;
Berm width is drawn in conjunction with figure by data analysis: the less part of stockline numerical value difference thought and be in same plane, using the distance of the X-direction of the X-Y scheme corresponding to this part numerical value as berm width;
The center funnel degree of depth is the difference of platform stockline and minimum stockline.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (2)
1. measure a method for charge surface shape in blast, it is characterized in that, specifically comprise the following steps:
(1) get out pre-equipment and comprise trivet and laser ranger, and check that trivet and laser ranger guarantee normal adaptation, then laser ranger assembling is fixed on trivet;
(2) open ignition manhole when blast furnace staying, select the radial path by blast furnace center by ignition manhole, the trivet fitted together and laser ranger are placed on ignition manhole right on simultaneously;
(3) laser ranger is regulated to make the measurement point of laser ranger move on blast furnace charge level by the The Cloud Terrace on tripod, then the center from the edge of blast furnace charge level to blast furnace charge level is measured in order successively, the edge of blast furnace charge level at least measure 20 points in the heart, and the distance recorded between each measurement point to laser measuring apparatus, measure and record above-mentioned each measurement point and the angle between laser ranger line and horizontal plane;
Selecting known stockline to be the blast furnace throat steel brick lower edge of 1.8m or the point at middle part is reference point, datum mark to laser ranger distance and reference point and the angle between laser ranger line and horizontal plane;
(4) distance corresponding to the above-mentioned each measurement point measured and angle data are shown sine by excel, cosine function calculates horizontal throw and vertical range, calculates and draws X-Y scheme, being specifically calculated as follows:
Measurement point horizontal throw=Cos(measurement point and the angle between laser ranger line and horizontal plane) distance between * measurement point to laser measuring apparatus;
Measurement point vertical range=Sin(measurement point and the angle between laser ranger line and horizontal plane) distance between * measurement point to laser measuring apparatus;
Blast furnace charge level is from the horizontal throw of the horizontal throw-reference point of the distance/m=measurement point of furnace wall;
The stockline of the vertical range-reference point of the vertical range-reference point of stockline/m=measurement point;
With the stockline of each measurement point for ordinate zou, blast furnace charge level is that X-coordinate draws X-Y scheme from the distance of furnace wall;
(5) data of shape of charge level, the center funnel degree of depth and berm width are drawn according to the X-Y scheme analysis obtained;
Berm width is drawn in conjunction with figure by data analysis: the less part of stockline numerical value difference thought and be in same plane, using the distance of the X-direction of the X-Y scheme corresponding to this part numerical value as berm width;
The described center funnel degree of depth is the difference of platform stockline and minimum stockline.
2. the method for measurement charge surface shape in blast according to claim 1, is characterized in that: regulate the height of trivet to make described laser ranger in the radial path at blast furnace center.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108441594A (en) * | 2018-06-26 | 2018-08-24 | 马钢(集团)控股有限公司 | Charge level device and its measurement method in a kind of portable laser detection State of Blast Furnace |
CN112853014A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | Method for adjusting shape of material distributing surface of blast furnace |
CN114854917A (en) * | 2022-03-29 | 2022-08-05 | 马鞍山钢铁股份有限公司 | Blast furnace burden surface shape measuring and analyzing method |
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CN1966729A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Method and device for charging of blowing-in blast furnace without bell |
CN201648425U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Blast furnace level shape measuring device |
CN102312031A (en) * | 2010-06-29 | 2012-01-11 | 鞍钢股份有限公司 | Device and method for measuring furnace top charge level of bell-less blast furnace |
CN103045785A (en) * | 2012-09-13 | 2013-04-17 | 天津市科特控制设备有限公司 | Method and system for on-line measurement of charge level of blast furnace |
CN104561420A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Three-dimensional burden surface measurement device and method for experimental model of burden distribution of blast furnace |
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2015
- 2015-08-19 CN CN201510510498.0A patent/CN105039621A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1966729A (en) * | 2005-11-16 | 2007-05-23 | 鞍钢股份有限公司 | Method and device for charging of blowing-in blast furnace without bell |
CN201648425U (en) * | 2010-02-23 | 2010-11-24 | 宝山钢铁股份有限公司 | Blast furnace level shape measuring device |
CN102312031A (en) * | 2010-06-29 | 2012-01-11 | 鞍钢股份有限公司 | Device and method for measuring furnace top charge level of bell-less blast furnace |
CN103045785A (en) * | 2012-09-13 | 2013-04-17 | 天津市科特控制设备有限公司 | Method and system for on-line measurement of charge level of blast furnace |
CN104561420A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Three-dimensional burden surface measurement device and method for experimental model of burden distribution of blast furnace |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108441594A (en) * | 2018-06-26 | 2018-08-24 | 马钢(集团)控股有限公司 | Charge level device and its measurement method in a kind of portable laser detection State of Blast Furnace |
CN112853014A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | Method for adjusting shape of material distributing surface of blast furnace |
CN114854917A (en) * | 2022-03-29 | 2022-08-05 | 马鞍山钢铁股份有限公司 | Blast furnace burden surface shape measuring and analyzing method |
CN114854917B (en) * | 2022-03-29 | 2024-04-12 | 马鞍山钢铁股份有限公司 | Blast furnace burden surface shape measurement and analysis method |
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