CN1151281C - Method for in-situ measuring charge of blast furnace - Google Patents
Method for in-situ measuring charge of blast furnaceInfo
- Publication number
- CN1151281C CN1151281C CNB00109470XA CN00109470A CN1151281C CN 1151281 C CN1151281 C CN 1151281C CN B00109470X A CNB00109470X A CN B00109470XA CN 00109470 A CN00109470 A CN 00109470A CN 1151281 C CN1151281 C CN 1151281C
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- blast furnace
- space net
- net rack
- furnace
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Abstract
The present invention relates to a new method for actually measuring material in a blast furnace when the blast furnace is opened to charge materials. The present invention is characterized in that the method adopts a space net frame device to form a space coordinate system in the furnace when the furnace is opened to charge materials; the method continuously measures on lines by a photography or camera method to obtain the material distribution parameters of the blast furnace and achieve the purpose of controlling the distribution of blast furnace materials. The present invention creatively uses the space net frame device, combines the photography and camera technology and is novel and unique. The method is capable of continuously measuring on lines and is simple and easy to implement; results are accurate and reliable. The method has very larger progress than original methods. The method put forward by the present invention is widely used for testing materials charged in the blast furnace, and has strong practical value on new blast furnaces and old blast furnaces needing to obtain material distribution rules.
Description
The present invention relates to a kind of method of blast furnace opening charging actual measurement, particularly a kind of novel method of utilizing the space net rack device and videotaping technology.
Charging system is most important to blast-furnace smelting, can with furnace charge as requested cloth in stove, the matter of utmost importance that the person that is the blast furnace operating urgently will solve.Because blast furnace production is successive processes, and carries out in encloses container, the operator also can't observe the situation in the stove at present, and this controls burden distribution to the operator and causes difficulty.Therefore, must survey the cloth rule of grasping loading device, control the foundation of cloth as the operator with this by shaft furnace charging.
Have only the cloth rule of having grasped loading device, can control the reasonable distribution of furnace charge, make blast furnace realize the target of high yield, high-quality, low consumption, longevity.For this reason, domestic and international many blast furnaces have all carried out the actual measurement of blow in burden when going into operation, obtained the cloth rule of this blast furnace under our factory's material condition, produce in order to instruct.The present invention is exactly a kind of shortcoming that overcomes original method, and can fast, accurately obtain the novel method of blast furnace material distribution rule.
The measuring method of known technology is to set up earlier platform in stove, when measuring the materials flow track, three cross bars is set in stove, estimates impact point by the special messenger when cloth, enters blast furnace by personnel then and measures; When measuring shape of charge level, the dismounting cross bar is entered in the stove by personnel and measures earlier.See document " BurdenDistribution Tests of Siderar ' s No.2 Blast Furnace ", 56th IronmakingConference Proceedings, 1997, pp.531-524; " the new No. 3 blast furnace openings charging of Wuhan Iron and Steel Plant actual measurement ", Wuhan Iron and Steel Plant is smelted iron 40 years (1958～1998), Wuhan: press of HUST, in September, 1998,371-379.This manual measurement method expends lot of materials, after each charging, need organize many people's break tours to enter in the stove and measure, and wastes time and energy.Also need remove platform after the measurement, postpone blow-on ignition time.Because personnel have entered in the stove disturbance original-shape of charge level, the accuracy of measurement also is affected.Therefore, adopt the cloth rule control charging that obtains by this method, also need to revise, postponed the time that blast furnace reaches product, make economic benefit be subjected to very big loss through long-term production after the blow-on.
The objective of the invention is to overcome the shortcoming and deficiency that above-mentioned existing method exists, provide a kind of by adopting space net rack and photography, videotaping equipment, the on-line continuous new measurement method of feeding in blow in burden, to shorten charge time greatly, improve measurement accuracy, reach the purpose of the reasonable cloth of blast furnace, make blast furnace reach product as early as possible, obtain bigger economic benefit.
Content of the present invention is seen accompanying drawing 1, and 1 is shape profile in blast furnace stack and the furnace throat position among the figure, and 2 is the space net rack device.Set in advance space net rack device in the blast furnace according to the furnace throat size design, in the blow in burden process, utilize the furnace roof hand-hole, adopt the image of photography or imaging device on-line continuous picked-up materials flow track and the corresponding mesh coordinate of shape of charge level, by computer the image of picked-up is handled, to determine rational cloth model and cloth parameter.
Space net rack device of the present invention is the cross rack, and grid is square or rectangle.
The present invention makes the rack framework with angle steel, round steel, steel pipe, in be welded into reticulated structure with round steel, make two mesh coordinate framves according to the blast furnace throat size, be assembled into the space net rack device again, hang at high furnace interior, can promote or reduction space net rack device according to the needs of measuring.
The present invention adopts photography or videotapes equipment, and on-line continuous picked-up materials flow track and charge level are the image of background with the space net rack in blow in burden, and charging is carried out synchronously with measuring process.
The present invention photographs and videotapes all and undertaken by the furnace roof hand-hole.
Measuring method is: the space net rack that is provided with in stove in advance before the blow-on with the round steel welding constitutes space coordinates, with the frame of reference of this space net rack as measurement, and this rack shaft top that hangs over capable of hoisting, and can promote as required or reduce; Adopt photography then and videotape equipment, on-line continuous picked-up materials flow track and charge level are the image of background with the cross rack in blow in burden; By computer the image that obtains is handled, drawn various parameters and data in the blow in burden process, and then obtain the rule of blast furnace material distribution.
When the present invention measured the materials flow track, the track that furnace charge falls can intersect with grid, and situation about intersecting is photographed and videotape equipment records, and can obtain the data that need by Computer Processing; When measuring shape of charge level, charge level can form an intersection with grid, and the shape of intersection is photographed and videotape equipment records, and can obtain the data that need by Computer Processing.Measuring process of the present invention and charging do not influence the time of blow in burden synchronously; After measuring end, rack does not need to remove, and can descend, melt with furnace charge; Measuring result has promptly and accurately been created condition for blast furnace reaches product smoothly.
Owing to adopt above technical scheme, the present invention compared with existing method have the following advantages and effect:
A) adopt space net rack device construction space coordinates first, the technology on-line continuous is measured by photographing, videotaping.
B) whole measuring process and blow in burden process are carried out synchronously, to not influence of charge time.
C) need in stove, not set up and remove platform, save human and material resources, shorten Measuring Time.
D) do not need personnel to enter operation in the stove, measuring process safety, convenient, fast.
E) to charge level without any interference, adopt computer to handle to obtaining image, guaranteed the accuracy and the reliability of data, the foundation of control burden distribution is provided for the operator.
F) measuring end back rack does not need to remove, and can descend, melt with furnace charge.
G) the blast furnace premature ignition is gone into operation, obtain great economic benefit.
H) measuring process and measuring result have circulation ratio, have accumulated valuable technical information for grasping the cloth rule.
The present invention has creatively used the space net rack device, combine with the photography technology of videotaping new and original, but that this method on-line continuous is measured is simple and easy to do, the result accurately and reliably, more original method tool has greatly improved.
Embodiment of the present invention is 2500m
3Blast furnace, the design utilization coefficient is 2.0t/m
3.d, apparatus for distributing is string jar no clock furnace roof, and space net rack is a cruciform, makes the rack framework of 4000mm * 6000mm (wide * height) with angle steel, and grid is welded with the round steel of Φ 10, and mesh shape is the square of 500mm * 500mm.
Blow in burden actual measurement comprises multinomial content, and the existing mensuration that mainly falls track and shape of charge level with regard to materials flow is described below:
A) materials flow falls the mensuration of track:
Inferior the purpose of measuring be when obtaining different chutes inclination angle furnace charge fall track.Behind the blast furnace opening, the operator can change the furnace charge drop point by changing the distributor chute inclination angle according to measurement result, thereby adjusts coal gas distributions in the stove.
During measurement cross rack device is promoted to furnace throat, makes its upper edge at stockline-0.7m place.When different furnace charges during with the blanking of different chutes inclination angle, take furnace charge with imaging device and by rack the time, fall track, by computer the image of photographing is handled, furnace charge falls track in the time of just can obtaining different chutes inclination angle.
B) mensuration of shape of charge level:
The mensuration of shape of charge level is to make the operator understand the burden distribution rule, gives full play to the effect of apparatus for distributing, guarantees the basis of smooth operation of furnace, high yield.
After measuring the materials flow track, cross rack device is dropped to stockline 2m place.In the time of in furnace charge is distributed into stove, furnace charge buries the bottom of rack, and charge level intersects with the grid of rack, and the line of intersection point is exactly the shape of charge level of this moment.Take charge level and the image that exposes rack down with imaging device,, can obtain shape of charge level accurately through Computer Processing.
Owing to adopted method of the present invention, this blast furnace was gone into operation 5-10 days in advance, saved great amount of manpower and material resources, financial resources, obtained huge economic benefit.
Description of drawings: Fig. 1 is the installation plan of space net rack device in blast furnace, the photo of Fig. 2 for being photographed in the blast furnace opening charging actual measurement process.
Among Fig. 1,1 is shape profile in blast furnace stack and the furnace throat position, and 2 is the space net rack device.The space net rack device is welded with round steel in stove, and is promoted to shaft top and furnace throat position, constitutes space coordinates, and the space rack is a cross structure among the figure, and A-A is the vertical view of A-A section among Fig. 1.The materials flow track of photographing in the measuring process and the graph of a relation of shape of charge level and space net rack are seen Fig. 2.
Claims (5)
1. blast furnace opening charging measurement method, it is characterized in that setting in advance in the stove space net rack device, when blow in burden, utilize the furnace roof manhole, adopt photography and videotape equipment on-line continuous picked-up materials flow track and shape of charge level is the image of background with the space net rack, by computer the image of picked-up is handled, to determine rational cloth parameter and cloth model.
2. measurement method according to claim 1 is characterized in that space net rack is intersected vertically by two mesh coordinate framves and constitutes the rack of cross, or be configured to other space net rack system with two above mesh coordinates that mesh shape is square or rectangle.
3. measurement method according to claim 1 when it is characterized in that blast furnace opening, can be measured by the method on-line continuous of photography or shooting.
4. according to claim 1,2 described measurement methods, it is characterized in that space net rack hangs on shaft top and furnace throat oral area position, with the space net rack frame of reference of measuring, produce the image of blast furnace material distribution materials flow track and shape of charge level continuously.
5. the space net rack device that uses in the described measurement method of claim 1, it is characterized in that making two network coordinate framves by the blast furnace throat size, be assembled into the space net rack device again, hang at high furnace interior, the lifting device of space net rack can be set, and its rack material is angle steel, round steel and steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00109470XA CN1151281C (en) | 2000-06-27 | 2000-06-27 | Method for in-situ measuring charge of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00109470XA CN1151281C (en) | 2000-06-27 | 2000-06-27 | Method for in-situ measuring charge of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1330160A CN1330160A (en) | 2002-01-09 |
| CN1151281C true CN1151281C (en) | 2004-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB00109470XA Expired - Fee Related CN1151281C (en) | 2000-06-27 | 2000-06-27 | Method for in-situ measuring charge of blast furnace |
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| Country | Link |
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| CN (1) | CN1151281C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736105B (en) * | 2008-11-18 | 2012-03-14 | 中冶天工建设有限公司 | Method for perforating and positioning engineering air port and air supply device of blast furnace |
| CN103305641B (en) * | 2013-06-20 | 2015-01-14 | 攀钢集团西昌钢钒有限公司 | Method for loading materials by blowing in blast furnace |
| CN106282463B (en) * | 2016-08-30 | 2018-04-24 | 武汉钢铁有限公司 | Using the method for high-speed camera measurement blast furnace material flow track |
| CN106548028B (en) * | 2016-10-31 | 2018-11-06 | 中冶赛迪工程技术股份有限公司 | A method of calculating furnace charge drop point |
| CN106521067B (en) * | 2017-01-06 | 2019-01-04 | 武汉科技大学 | Blast furnace bed of material measurement method and device |
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2000
- 2000-06-27 CN CNB00109470XA patent/CN1151281C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1330160A (en) | 2002-01-09 |
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Granted publication date: 20040526 Termination date: 20160627 |