CN102433409A - Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible - Google Patents
Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible Download PDFInfo
- Publication number
- CN102433409A CN102433409A CN2011104040930A CN201110404093A CN102433409A CN 102433409 A CN102433409 A CN 102433409A CN 2011104040930 A CN2011104040930 A CN 2011104040930A CN 201110404093 A CN201110404093 A CN 201110404093A CN 102433409 A CN102433409 A CN 102433409A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- thermopair
- measuring method
- thickness measuring
- open hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Blast Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to an embedding and thickness measuring method for a thermocouple on the erosion part of a blast furnace crucible. The method comprises the following steps of: drilling a mounting hole beside and at the same elevation as the preembedded thermocouple of the original blast furnace crucible; mounting the thermocouple in the mounting hole; grouting a carbon paste grouting material into the mounting hole, and connecting the thermocouple and a computer in a central control room of a blast furnace; and measuring the residual thickness of a carbon brick by using a Fourier heat transfer formula. The method is low in input cost, high in measuring precision, easy to implement and obvious in effect.
Description
Technical field
The present invention relates to metallurgy-blast furnace monitoring technical field, the thermopair that particularly relates to a kind of blast furnace hearth attack sites is buried thickness measuring method underground.
Background technology
At present labour blast furnace in, the pre-buried thermopair of establishing of a lot of cupola wells is arranged, all be employed in different absolute altitudes, direction is done single and is buried underground.This method for embedding can only be as general temperature and experience judgment value, can't use Fourier's formula that conducts heat, and carries out accurately that the cupola well carbon brick corrodes monitoring and calculates, and safety in production brings hidden danger to blast furnace for this.And in general, resembling around pin attack sites and the iron mouth below of cupola well is the multiple position that blast furnace hearth erosion is both at home and abroad at present burnt, and is the most important thing of blast furnace hearth due care.
Summary of the invention
Technical problem to be solved by this invention provides a kind of thermopair of blast furnace hearth attack sites and buries thickness measuring method underground, can calculate the carbon brick erosion degree, guarantees the blast furnace safe operation.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of thermopair of blast furnace hearth attack sites to bury thickness measuring method underground, may further comprise the steps:
(1) gets out open hole at the pre-buried thermopair of establishing of the original cupola well of blast furnace with the absolute altitude side;
(2) thermopair is installed in open hole;
(3) open hole is filled up with carbon paste grouting material mud jacking, and thermopair is linked to each other with blast furnace Central Control Room computer;
(4) to calculate carbon brick residual thick for formula to utilize utilization Fourier to conduct heat.
The aperture of said open hole is 8mm, and the degree of depth is to the blast furnace cooling stave hot side 20mm of place.
Also be included in the protective tube in welding band sleeve pipe mud jacking hole on the stove skin of blast furnace between said step (1) and the step (2).
Pneumatic mortar machine is linked to each other with mud jacking hole on the protective tube, fill up open hole with the carbon paste mud jacking.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art has following advantage and positively effect: the present invention only need be installed a thermopair additional and can realize; Input cost is humble, is particularly suitable for small furnace, adopts the thermopair of high precision good linearity; Displays temperature intuitively and accurately; Behind the substitution fourier formula, make calculation result more accurate, reference value is high.Embodiment of the present invention is simple, generally when the inner periodical repair of iron work, can implement voluntarily to install.
Description of drawings
Fig. 1 is a thermopair of the present invention installation site synoptic diagram;
Fig. 2 is along A-A line sectional view among Fig. 1.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present invention relates to a kind of thermopair of blast furnace hearth attack sites and buries thickness measuring method underground, and through setting up thermopair in the same absolute altitude of the original thermopair of cupola well, equidirectional boring, making it the depth has 2 temperature displayed values; Use Fourier's formula measuring and calculating carbon brick erosion degree that conducts heat again, be aided with rational operation and maintenance, guarantee the blast furnace safe operation; The cost that this method drops into is low; The precision of measuring and calculating is high, implements simply, and effect is obvious.It may further comprise the steps:
(1) get out open hole at the original cupola well 5 pre-buried thermopairs of establishing 1 of blast furnace with the absolute altitude side, open hole can inwardly bore ∮ 8mm holes through 3 of two cooling staves again by stove skin 4, and the degree of depth to cooling stave 3 20mm of hot side place are as depicted in figs. 1 and 2.
(2) cleaning open hole, the protective tube 6 in welding band sleeve pipe mud jacking hole on stove skin 4.
(3) thermopair 2 is installed in open hole.
(4) open hole is filled up with carbon paste grouting material mud jacking, and thermopair 2 is linked to each other with blast furnace Central Control Room computer, through linking to the temperature value that blast furnace Central Control Room computer shows that thermopair records.
(5) to calculate carbon brick residual thick for formula to utilize utilization Fourier to conduct heat.The temperature value that promptly records through original thermopair and the thermopair that newly installs additional; Convert to the Fourier formula Q=λ * Δ T/L that conducts heat: it is residual thick that L=λ * Δ T/Q calculates carbon brick, and wherein L is that brick thickness, Q are that heat conduction amount, λ are that thermal conductivity, Δ T are the temperature gap that original thermopair and the thermopair that newly installs additional record.
Be not difficult to find that the present invention only need be installed a thermopair additional and can realize, make the hearth erosion model with specialized company or other method input cost Comparatively speaking of the present invention is humble; Be particularly suitable for small furnace; Adopt the thermopair of high precision good linearity, displays temperature intuitively and accurately is behind the substitution fourier formula; Make calculation result more accurate, reference value is high.Embodiment of the present invention is simple, generally when the inner periodical repair of iron work, can implement voluntarily to install.
Claims (4)
1. the thermopair of a blast furnace hearth attack sites is buried thickness measuring method underground, it is characterized in that, may further comprise the steps:
(1) gets out open hole at the pre-buried thermopair of establishing of the original cupola well of blast furnace with the absolute altitude side;
(2) thermopair is installed in open hole;
(3) open hole is filled up with carbon paste grouting material mud jacking, and thermopair is linked to each other with blast furnace Central Control Room computer;
(4) to calculate carbon brick residual thick for formula to utilize utilization Fourier to conduct heat.
2. the thermopair of blast furnace hearth attack sites according to claim 1 is buried thickness measuring method underground, it is characterized in that, the aperture of said open hole is 8mm, and the degree of depth is to the blast furnace cooling stave hot side 20mm of place.
3. the thermopair of blast furnace hearth attack sites according to claim 1 is buried thickness measuring method underground, it is characterized in that, also is included in the protective tube in welding band sleeve pipe mud jacking hole on the stove skin of blast furnace between said step (1) and the step (2).
4. the thermopair of blast furnace hearth attack sites according to claim 3 is buried thickness measuring method underground, it is characterized in that, pneumatic mortar machine is linked to each other with mud jacking hole on the protective tube, fills up open hole with the carbon paste mud jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104040930A CN102433409A (en) | 2011-12-08 | 2011-12-08 | Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104040930A CN102433409A (en) | 2011-12-08 | 2011-12-08 | Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102433409A true CN102433409A (en) | 2012-05-02 |
Family
ID=45981755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104040930A Pending CN102433409A (en) | 2011-12-08 | 2011-12-08 | Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102433409A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570365A (en) * | 2012-08-10 | 2014-02-12 | 宝山钢铁股份有限公司 | Adhesive of carbon brick of blast-furnace crucible and thermocouple and filling method thereof |
| CN105624354A (en) * | 2016-04-06 | 2016-06-01 | 安徽工业大学 | Mounting method of blast furnace hearth bottom temperature thermocouple |
| CN105624353A (en) * | 2016-04-06 | 2016-06-01 | 安徽工业大学 | Thermocouple on-line mounting device for blast furnace temperature measurement |
| CN105671232A (en) * | 2016-04-06 | 2016-06-15 | 安徽工业大学 | Online installation process of iron-smelting blast furnace thermocouple |
| CN105733626A (en) * | 2016-02-02 | 2016-07-06 | 农业部规划设计研究院 | Detection and removal method for biomass carbonization equipment pipeline coke button |
| CN107630118A (en) * | 2017-11-17 | 2018-01-26 | 唐山国丰钢铁有限公司 | The thermocouple arrangement of monitoring blast furnace taphole temperature change in real time |
| CN110527769A (en) * | 2018-07-18 | 2019-12-03 | 广东韶钢松山股份有限公司 | A kind of residual thick judgment method of blast furnace crucibe carbon brick |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08261741A (en) * | 1995-03-23 | 1996-10-11 | Sumitomo Metal Ind Ltd | Measuring method for blast furnace refractory thickness |
| KR20030050868A (en) * | 2001-12-19 | 2003-06-25 | 주식회사 포스코 | Estimation method for blast furnace hearth refractory thickness |
| CN1436861A (en) * | 2002-02-09 | 2003-08-20 | 山东省冶金设计院 | Blast furnace lining ablation monitor and monitoring method |
| CN101275829A (en) * | 2007-03-29 | 2008-10-01 | 上海梅山钢铁股份有限公司 | Method for measuring blast furnace lining corroding thickness |
| CN101289698A (en) * | 2008-06-06 | 2008-10-22 | 武汉宏程冶金材料有限公司 | Blast furnace pressing-in grouting and lining-making construction method |
-
2011
- 2011-12-08 CN CN2011104040930A patent/CN102433409A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08261741A (en) * | 1995-03-23 | 1996-10-11 | Sumitomo Metal Ind Ltd | Measuring method for blast furnace refractory thickness |
| KR20030050868A (en) * | 2001-12-19 | 2003-06-25 | 주식회사 포스코 | Estimation method for blast furnace hearth refractory thickness |
| CN1436861A (en) * | 2002-02-09 | 2003-08-20 | 山东省冶金设计院 | Blast furnace lining ablation monitor and monitoring method |
| CN101275829A (en) * | 2007-03-29 | 2008-10-01 | 上海梅山钢铁股份有限公司 | Method for measuring blast furnace lining corroding thickness |
| CN101289698A (en) * | 2008-06-06 | 2008-10-22 | 武汉宏程冶金材料有限公司 | Blast furnace pressing-in grouting and lining-making construction method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570365A (en) * | 2012-08-10 | 2014-02-12 | 宝山钢铁股份有限公司 | Adhesive of carbon brick of blast-furnace crucible and thermocouple and filling method thereof |
| CN103570365B (en) * | 2012-08-10 | 2015-04-01 | 宝山钢铁股份有限公司 | Adhesive of carbon brick of blast-furnace crucible and thermocouple and filling method thereof |
| CN105733626A (en) * | 2016-02-02 | 2016-07-06 | 农业部规划设计研究院 | Detection and removal method for biomass carbonization equipment pipeline coke button |
| CN105733626B (en) * | 2016-02-02 | 2018-10-23 | 农业部规划设计研究院 | A kind of biomass carbonated equipment pipe cinder detection and sweep-out method |
| CN105624354A (en) * | 2016-04-06 | 2016-06-01 | 安徽工业大学 | Mounting method of blast furnace hearth bottom temperature thermocouple |
| CN105624353A (en) * | 2016-04-06 | 2016-06-01 | 安徽工业大学 | Thermocouple on-line mounting device for blast furnace temperature measurement |
| CN105671232A (en) * | 2016-04-06 | 2016-06-15 | 安徽工业大学 | Online installation process of iron-smelting blast furnace thermocouple |
| CN107630118A (en) * | 2017-11-17 | 2018-01-26 | 唐山国丰钢铁有限公司 | The thermocouple arrangement of monitoring blast furnace taphole temperature change in real time |
| CN110527769A (en) * | 2018-07-18 | 2019-12-03 | 广东韶钢松山股份有限公司 | A kind of residual thick judgment method of blast furnace crucibe carbon brick |
| CN110527769B (en) * | 2018-07-18 | 2021-04-30 | 广东韶钢松山股份有限公司 | Method for judging residual thickness of carbon brick in blast furnace hearth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102433409A (en) | Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible | |
| IN2014MN01308A (en) | ||
| CN108570524B (en) | Detection and diagnosis process for refractory material of blast furnace hot blast stove pipeline lining | |
| CN101275829A (en) | Method for measuring blast furnace lining corroding thickness | |
| CN202954056U (en) | Blast furnace body brick lining temperature measuring device | |
| Zhao et al. | Study on the early warning mechanism for the security of blast furnace hearths | |
| CN204224628U (en) | The thermopair that a kind of blast furnace hearth is installed online | |
| WO2018126573A1 (en) | Method for extracting thermal energy of underground high temperature area of coal field fire zone | |
| CN105624354B (en) | A kind of installation method of blast furnace hearth and bottom temperature thermocouple | |
| CN105671232B (en) | A kind of online mounting process of blast furnace thermocouple | |
| CN103981317A (en) | Blast furnace tapping hole molten iron temperature continuous detection method based on temperature drop model | |
| CN205172523U (en) | Oil shale underground normal position electric heater | |
| CN104866681B (en) | Temperature, pressure method for numerical simulation during high temperature and pressure oil gas inclined shaft closing well | |
| CN110542485B (en) | Measuring device and manufacturing method for lining temperature of main runner of blast furnace molten iron | |
| CN101260670A (en) | Concrete hot pipe maintenance method | |
| CN204939506U (en) | A kind of device stoping blast furnace hearth bottom temp to raise | |
| CN202482340U (en) | Thermocouple for online installation of blast furnace | |
| CN201195841Y (en) | Concrete heat pipe curing means | |
| CN105181125A (en) | Drilling-used downhole hydraulic oscillator simulation test device and test method thereof | |
| CN203081454U (en) | Shield machine tail structure facilitating replacement of shield tail brushes | |
| CN202180240U (en) | Lengthened alloy tool steel bit | |
| CN201926517U (en) | Raw gas temperature measurement device for coke oven | |
| CN210664800U (en) | Measuring device for blast furnace molten iron main channel lining temperature | |
| CN203613214U (en) | Pre-buried thermocouple monitoring device for furnace-front iron runner | |
| CN206670806U (en) | Improved cross thermocouple for blast furnace protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120502 |
|
| RJ01 | Rejection of invention patent application after publication |