CN101126727A - Pellet ore expansion index measuring method - Google Patents
Pellet ore expansion index measuring method Download PDFInfo
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- CN101126727A CN101126727A CNA2006100698362A CN200610069836A CN101126727A CN 101126727 A CN101126727 A CN 101126727A CN A2006100698362 A CNA2006100698362 A CN A2006100698362A CN 200610069836 A CN200610069836 A CN 200610069836A CN 101126727 A CN101126727 A CN 101126727A
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- ceramic pipe
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Abstract
The utility model relates to a method for measuring the pellet swelling index, which is characterized in that the method can be used on an electric furnace with hearth of ceramic tube (6), a camera (8) is arranged on one end of the ceramic tube (6); a light source is arranged on any end of the hearth; a thermocouple (12) is arranged in the hearth; the pellet (10) to be measured is arranged on the middle position of the hearth. Meanwhile, the method can be used on any furnace as long as the pellet to be measured (10) can be arranged inside the hearth, the camera (8) can be arranged on any position of the hearth, the reducing gas can be passed and the heating can be carried out according to the measurement requirements. The utility model has the advantages that the camera (8) is firstly used to collect the appearance image of the pellet (10) with the initial state in normal temperature, then collect the reducing gas passed in the furnace and image of pellet (10) reaching the preset temperature, finally input the image data into a computer (7) for processing and calculating the swelling index of pellet (10).
Description
Technical field:
The present invention relates to the performance measurement method of a kind of blast furnace ironmaking, particularly a kind of measuring method that is used for the iron ore pellets exponent of expansion with raw material.
Background technology:
The technology of domestic existing mensuration pellet exponent of expansion mainly is the method that is provided according among standard GB/T13240-91 " assay method of the relative free-swelling index of iron ore pellets ", this method measuring accuracy is higher, but it is loaded down with trivial details to measure formality, is not suitable for carrying out immediately in the production scene, measuring fast.The method that adopts the linear expansion instrument to measure is also arranged in addition, but this method error is bigger.
Summary of the invention:
The purpose of this invention is to provide and a kind ofly can in burner hearth, place the pellet sample, and can absorb the pellet picture information, can carry out image processing, can calculate the method for pellet exponent of expansion automatically by the image contrast by computing machine by camera.
The object of the present invention is achieved like this: the one, can camera be installed at an end of conventional electric tube furnace ceramic pipe burner hearth; Can any end be installed by light source at the two ends of ceramic pipe, and reserve reducing gas gas outlet and air intake opening at the two ends of ceramic pipe; The outside at reducing gas gas outlet and air intake opening is equipped with glass sheet, to prevent the damage of light-emitting component or camera; Thermopair is installed, to measure temperature in the stove in burner hearth; Camera links to each other with computing machine with thermopair, with temperature in the computer monitor burner hearth and handle measured object--and the picture information of pellet; In the middle of burner hearth, place measured pellet and purpose-made pallet.The 2nd, can utilize and anyly can place measured object--pellet in that burner hearth is inner, and can at any position of burner hearth camera be installed, the stove and accessory that can feed reducing gas and can heat.The 3rd, camera can not be installed on the stove and accessory, the convenient pellet image of the place picked-up pellet original state image of camera being installed and being issued to predetermined temperature at reducing gas outside stove.During measurement, at first use camera collection pellet normal temperature original state outward appearance image, in stove, feed reducing gas according to examination requirements then, the interior temperature of the stove that raises simultaneously is to checking desired temperature (900 ± 10 ℃), gather the pellet image when feeding reducing gas in the stove and reaching predetermined temperature again, at last with camera collection to pellet normal temperature original state image and stove in feeding reducing gas and the pellet image when reaching predetermined temperature compare processing by computing machine, thereby obtain the exponent of expansion of pellet.
The present invention utilizes image capture method that pellet is carried out non-contact measurement, utilizing computing machine to carry out pictorial data handles, can avoid the damage or the distortion that the contact of pellet are caused because of in measuring process, can overcome the interference that surrounding environment produces, this measuring method is simple to operate simultaneously, and measuring speed is fast, can average doing several times same batch more, therefore, can improve measuring accuracy; And in measuring process, no longer need Other Instruments to cooperate, can realize that measurement result produces automatically.
Description of drawings:
Accompanying drawing is the basic structure synoptic diagram of first kind of way of realization of the present invention.
1 is light source among the figure, and 2 is glass sheet, and 3 is the reducing gas gas outlet, and 4 is the electric furnace body, and 5 is heating, and 6 is the electric stove hearth ceramic pipe, and 7 is computing machine, and 8 is camera, and 9 is the reducing gas air intake opening, and 10 is pellet, and 11 is pallet, and 12 is thermopair.
Embodiment:
For clearly demonstrating technical characterstic of the present invention,, and, the present invention is set forth in conjunction with its accompanying drawing below by embodiment.By accompanying drawing as can be seen, first kind of way of realization of the present invention is: utilizing a kind of burner hearth is the electric tube furnace of ceramic pipe (6), at an end of ceramic pipe (6) camera (8) is installed; Light source (1) can be installed in any end of ceramic pipe (6); Reducing gas gas outlet (3) reducing gas air intake opening (9) is reserved at the two ends of ceramic pipe (6) respectively; There is glass sheet (2) in the outside at reducing gas gas outlet (3) and air intake opening (9), with protection equipment; Thermopair (12) also is installed in ceramic pipe (6), and the output of thermopair (12) and camera (8) inserts computing machine (7), monitors the interior temperature of burner hearth and handles the pictorial data of pellet (10) with computing machine (7); Place measured pellet (10) and purpose-made pallet (11) in the centre position of ceramic pipe (6).
Second kind of way of realization of the present invention is: it can utilize any can be at the inner measured pellet (10) of placing of burner hearth, and can camera (8) be installed in any orientation of burner hearth, can feed reducing gas simultaneously also can be according to detecting the stove and accessory that requirement is heated.
The third way of realization of the present invention is: camera (8) can not be installed on the stove and accessory, convenient pellet (10) image of place picked-up pellet (10) the original state image of camera (8) being installed and being issued to predetermined temperature at reducing gas outside stove.
During measurement, at first use camera (8) to gather pellet (10) normal temperature original state outward appearance image, in burner hearth, feed reducing gas according to examination requirements by air intake opening (9) then, the interior temperature of the burner hearth that raises simultaneously is to checking desired temperature, gather the image of pellet (10) when feeding reducing gas in the stove and reaching predetermined temperature (900 ± 10 ℃) again, pellet (10) image when feeding reducing gas and reaching predetermined temperature in pellet (10) normal temperature original state image that at last camera (8) is collected and the stove carries out filtering by computing machine (7), strengthen, cut apart, processing such as identification, obtain the volume data of pellet (10) test front and back, calculate the exponent of expansion of pellet (10) according to this.
Claims (4)
1. pellet ore expansion index measuring method, it is characterized in that: it can utilize the electric tube furnace of a kind of burner hearth for ceramic pipe (6), at an end of ceramic pipe (6) camera (8) is arranged; Light source (1) can be arranged on any end of ceramic pipe (6); Gas outlet (3) and air intake opening (9) are arranged respectively at the two ends of ceramic pipe (6), and there is glass sheet (2) in (3) and air intake opening (9) outside in the gas outlet; In ceramic pipe (6) inside thermopair (12) is arranged; Camera (8) is connected with computing machine (7) with thermopair (12); Object being measured--pellet (10) and purpose-made pallet (11) are placed on the centre position in the ceramic pipe (6).
2. pellet ore expansion index measuring method, it is characterized in that: it can utilize any can be at inner object being measured--the pellet (10) of placing of burner hearth, and can camera (8) be installed in any orientation of burner hearth, the stove and accessory that can feed reducing gas simultaneously and can heat according to measurement requirement.
3. according to claim 1,2 described a kind of pellet ore expansion index measuring methods, it is characterized in that: at first use camera (8) to gather pellet (10) normal temperature original state outward appearance image, in burner hearth, feed reducing gas according to examination requirements by air intake opening (9) then, the interior temperature of the burner hearth that raises simultaneously is to checking desired temperature, gather the image of pellet (10) when feeding reducing gas in the stove and reaching predetermined temperature again, with above-mentioned image input computer (7), it is carried out filtering, strengthen, cut apart, processing such as identification, obtain the volume data of pellet (10) test front and back, calculate the exponent of expansion of pellet (10) according to this.
4. a kind of pellet ore expansion index measuring method according to claim 3; its camera (8) can not be installed on the stove and accessory; as long as can absorb pellet original state image and be issued to the pellet image of predetermined temperature at reducing gas; and measure the method for pellet exponent of expansion by computer image treatment, all belong to this patent protection domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100698362A CN101126727A (en) | 2006-08-18 | 2006-08-18 | Pellet ore expansion index measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100698362A CN101126727A (en) | 2006-08-18 | 2006-08-18 | Pellet ore expansion index measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101126727A true CN101126727A (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100698362A Pending CN101126727A (en) | 2006-08-18 | 2006-08-18 | Pellet ore expansion index measuring method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101126727A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726510B (en) * | 2009-12-09 | 2011-07-20 | 莱芜钢铁股份有限公司 | Visual pellet ore reduction swellability measurement method and device |
| CN105466934A (en) * | 2015-12-31 | 2016-04-06 | 河南中烟工业有限责任公司 | Tobacco stem expansion rate measuring system and method based on image processing |
| CN110487841A (en) * | 2019-07-26 | 2019-11-22 | 武汉科技大学 | Measure linear expansion coefficient high temperature furnace, measuring device and method using it |
| CN114354676A (en) * | 2022-01-11 | 2022-04-15 | 内蒙古科技大学 | Method and device for detecting reduction and expansion performance of pellet |
-
2006
- 2006-08-18 CN CNA2006100698362A patent/CN101126727A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726510B (en) * | 2009-12-09 | 2011-07-20 | 莱芜钢铁股份有限公司 | Visual pellet ore reduction swellability measurement method and device |
| CN105466934A (en) * | 2015-12-31 | 2016-04-06 | 河南中烟工业有限责任公司 | Tobacco stem expansion rate measuring system and method based on image processing |
| CN105466934B (en) * | 2015-12-31 | 2018-05-22 | 河南中烟工业有限责任公司 | Cabo expansion rate measurement system and method based on image procossing |
| CN110487841A (en) * | 2019-07-26 | 2019-11-22 | 武汉科技大学 | Measure linear expansion coefficient high temperature furnace, measuring device and method using it |
| CN114354676A (en) * | 2022-01-11 | 2022-04-15 | 内蒙古科技大学 | Method and device for detecting reduction and expansion performance of pellet |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080220 |