CN103292921A - Temperature measuring device for intelligent sintering control model - Google Patents
Temperature measuring device for intelligent sintering control model Download PDFInfo
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- CN103292921A CN103292921A CN2012100524099A CN201210052409A CN103292921A CN 103292921 A CN103292921 A CN 103292921A CN 2012100524099 A CN2012100524099 A CN 2012100524099A CN 201210052409 A CN201210052409 A CN 201210052409A CN 103292921 A CN103292921 A CN 103292921A
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Abstract
The invention discloses a temperature measuring device for an intelligent sintering control model. According to the technology, the temperature measuring device is composed of a connecting box 1, a connecting terminal 2 in the connection box 1, main protective tubes 3, small protective sleeve bushings 4, four insulating bushings 5, four nickel-chromium-nisiloy heated electrodes 6, and four sets of leads 7. In the process of operation of a sintering pallet, the temperature measuring device conducts temperature measuring on sintering flue gas through the sintering pallet, the temperature measured by the four heated electrodes 5 at the cross section is connected to the connecting box 1 through the leads 7, and then the temperature is fed back to a remote monitoring system. The temperature measuring device has the advantages that two sides of each air bellow are respectively provided with a set of main protective tube and small protective sleeve bushing, the sets of main protective tubes and small protective sleeve bushings can accurately measure temperature changes of eight points on the cross section of each air bellow, can timely detect the sintering condition of sintering ore of the upper portion of each air bellow, and can timely provide abnormal information of the sintering condition on the sintering pallet; the device can comprehensively improve reliability of temperature monitoring of the five air bellows nearby the bottom of a BTP, and is an effective evidence for improving production quality and reducing production accidents.
Description
Technical field
The present invention relates to the key equipment in the ironmaking system sintering deposit production of intelligent control procedure, is a kind of for the pick-up unit of sintering deposit sintering process BRP (temperature rising point) with near beneath 5 box temperature of BTP (burning point).
Background technology
The ironmaking system of steel and iron industry, need to produce sintering deposit and use for blast furnace, sintering deposit production is the preceding working procedure of blast furnace ironmaking, is a kind of production run continuously, the sintering deposit production process comprises mainly that also sintering deposit is former, fuel is prepared burden and batch mixing except roasting and finished product.And in sintering process, the position of sintering end point often can't directly be measured, even and judge sintering end point according to the exhaust gas temperature of last several bellows, lag behind in time, certainly will have influence on the stable and optimal control of sintering end point and even whole sintering process, so must forecast in advance sintering end point.
And in sintering end point control, mainly contain the terminal point control that exhaust gas temperature rising point BRP (Burn Rising Point) and BTP (Burn Through Point) carry out sintering process.It mainly drives row control sintering end point into by the displacement of ordering according to BRP, with coming the prediction sintering end point through the exhaust gas temperature point of inflexion on a curve position that calculates, has replaced common BTP (Burn Through Point).
The mechanism of BRP prediction sintering end point is: the state of sintering process comprises gas penetration potential state and two aspects of hot state, and the gas penetration potential state determines carrying out smoothly of sintering process, and hot state is the reflection directly perceived of process status.The bed of material is after igniting, and the coke powder on top layer takes fire, and the air themperature by the bed of material is raise.Along with the carrying out of sintering process, zone of combustion moves down gradually, because the auto accumulation heat effect of the bottom bed of material and the disappearance of condensation, exhaust gas temperature continues to raise.When the zone of combustion forward position arrived grid section, exhaust gas temperature rose significantly, grills thoroughly the arrival sintering end point up to the whole bed of material, and exhaust gas temperature is the highest.After this, because the end of combustion, exhaust gas temperature descends.This shows that under the stable situation of SINTERING PRODUCTION, the position of burning point is revised indirectly by controlling position that actual BRP orders in the position that can order according to technique initialization BRP.
BRP control model by install at the bellows at sintering machine rear portion a plurality of thermopairs the method position of calculating BRP.The position of rising point on sintering machine surpasses half of captain, namely gets sintering machine postmedian box temperature value match quafric curve, finds the solution point of inflexion on a curve, namely with calculating the sintering end point position through the exhaust gas temperature point of inflexion on a curve position that calculates.But well measure temperature point of contact really because the thermopair of existing installation is very difficult, and can only measure a temperature spot in the lateral attitude, can't satisfy the requirement of sintering end point control model.Therefore the present invention bellows continuous transverse measure the temperature measuring equipment of four temperature spots, a kind of device that can accurately detect bellows exhaust gas temperature situation of change between sintering machine BRP and the BTP is provided, be intended to realize that sintering control is intelligent, improve production target, reduce industrial accident.
Summary of the invention
The objective of the invention is: at the imperfection of existing temperature-detecting device, a kind of device that can accurately detect bellows exhaust gas temperature situation of change between sintering machine BRP and the BTP is provided, be intended to realize that sintering control is intelligent, improve production target, reduce industrial accident.
The present invention realizes by following technique device: it is made up of the connection terminal in terminal box, the terminal box, main protection pipe, little protective casing, insulating sleeve (4), nickel chromium triangle-nisiloy thermode (4) and lead-in wire (4 groups).Open little protection tube of the vertical welding of an osculum at the sealed end of main protection pipe, other three little protection tube the same manners are separated by separately and are welded on the main protection pipe, require to keep the same side and a surface level; In four built-in and little protection tubes of thermode difference, insulating sleeve and lead-in wire lead to terminal box from main protection tube opening end respectively.In the sintering pallet operational process, sinter fume carries out thermometric by chassis through temperature measuring equipment, and four thermode measured temperatures see through lead-in wire and are connected to terminal box in the square section, after feed back to long distance control system; As long as shape and detection mode and the same this patent that all belongs to of this device.
Learn that according to the narration of said apparatus production program the present invention has following characteristics: this device is respectively installed the temperature variation that can measure these 8 points in bellows square section accurately in the bellows both sides, can in time detect the situation of burning till of bellows top sintering deposit, the abnormal information of sintering situation on the chassis can in time be provided; This device manufacturing process is simply easy for installation, can utilize short servicing machine meeting installation, can improve near the reliability of beneath 5 box temperature monitoring of BTP (burning point) comprehensively, is to improve the quality of production, reduces effective foundation of industrial accident.
Description of drawings:
Accompanying drawing 1 is a kind of structural drawing of temperature measuring equipment of the present invention; Accompanying drawing 2 is side views of a kind of embodiment of temperature measuring equipment of the present invention.
Among Fig. 1: 1 terminal box, 2 connection terminals, 3 main protection pipes, 4 little protective casings, 5 insulating sleeves, 6 nickel chromium triangles-nisiloy thermode.
Among Fig. 2: main protection pipe level is installed under the operation chassis, and four little protection tubes and horizontal direction are 30 ° and lay down.
Embodiment
For clearly demonstrating technical characterstic of the present invention, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
The present invention realizes by following technique device: it is made up of the connection terminal 2 in terminal box 1, the terminal box, main protection pipe 3, little protective casing 4, insulating sleeve 5 (4), nickel chromium triangle-nisiloy thermode 6 (4) and lead-in wire 7 (4 groups).Open little protection tube 4 of the vertical welding of an osculum at the sealed end of main protection pipe 3, other three little protection tube 4 the same manners are separated by separately and are welded on the main protection pipe 3, require to keep the same side and a surface level; Four thermodes 5 are respectively in built-in and the little protection tubes 4, insulating sleeve 5 and go between 7 respectively from main protection pipe 3 openends towards terminal box 1.In the sintering pallet operational process, sinter fume carries out thermometric by chassis through temperature measuring equipment, and four thermode 5 measured temperatures see through lead-in wire 7 and are connected to terminal box 1 in the square section, after feed back to long distance control system; As long as shape and detection mode and the same this patent that all belongs to of this device.
Claims (3)
1. thermometric pick-up unit that uses in intelligent sintering control model, be primarily characterized in that: it is made up of the connection terminal 2 in terminal box 1, the terminal box, main protection pipe 3, little protective casing 4, insulating sleeve 5 (4), nickel chromium triangle-nisiloy thermode 6 (4) and 7 (4 groups) that go between.
2. a kind of temperature-detecting device according to claim 1; it is characterized in that: main protection pipe and little protective casing are welded to form, are cut off by a stainless-steel tube not of uniform size, and edge sleeve pipe (4) and nickel chromium triangle-nisiloy thermode (4) design and produce according to on-the-spot process requirements.
3. a kind of temperature-detecting device according to claim 1 is characterized in that: main protection pipe and little protective casing are by being welded into one, and bellows two are surveyed a cover respectively is installed, and just can detect the temperature of interior cross section eight points of bellows simultaneously; As long as shape and detection mode and the same this patent protection domain that all belongs to of this device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100524099A CN103292921A (en) | 2012-03-02 | 2012-03-02 | Temperature measuring device for intelligent sintering control model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100524099A CN103292921A (en) | 2012-03-02 | 2012-03-02 | Temperature measuring device for intelligent sintering control model |
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| CN103292921A true CN103292921A (en) | 2013-09-11 |
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| CN2012100524099A Pending CN103292921A (en) | 2012-03-02 | 2012-03-02 | Temperature measuring device for intelligent sintering control model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571332A (en) * | 2014-10-17 | 2016-05-11 | 宝山钢铁股份有限公司 | Measuring device for temperature changes of sintered ore layer in ring cooling machine and temperature measuring method based on measuring device |
| CN107884087A (en) * | 2017-12-08 | 2018-04-06 | 鞍钢集团矿业有限公司 | A kind of test device and its method of sinter bed surface temperature |
| CN114774679A (en) * | 2022-04-01 | 2022-07-22 | 安阳钢铁股份有限公司 | Method for controlling thermal state of sinter bed |
Citations (4)
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| JPS581760Y2 (en) * | 1980-08-05 | 1983-01-12 | 川崎製鉄株式会社 | Temperature measuring device inside the sintered layer |
| CN101354290A (en) * | 2008-09-08 | 2009-01-28 | 中冶长天国际工程有限责任公司 | Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley |
| CN101441444A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering status control method in sintering process |
| CN101806637A (en) * | 2009-02-13 | 2010-08-18 | 天津市中环温度仪表有限公司 | Adjustable armored thermocouple (resistor) with multipoint leakage resistance |
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2012
- 2012-03-02 CN CN2012100524099A patent/CN103292921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581760Y2 (en) * | 1980-08-05 | 1983-01-12 | 川崎製鉄株式会社 | Temperature measuring device inside the sintered layer |
| CN101354290A (en) * | 2008-09-08 | 2009-01-28 | 中冶长天国际工程有限责任公司 | Device for detecting temperature of sintered trolley and use method thereof, and sintered trolley |
| CN101441444A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering status control method in sintering process |
| CN101806637A (en) * | 2009-02-13 | 2010-08-18 | 天津市中环温度仪表有限公司 | Adjustable armored thermocouple (resistor) with multipoint leakage resistance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571332A (en) * | 2014-10-17 | 2016-05-11 | 宝山钢铁股份有限公司 | Measuring device for temperature changes of sintered ore layer in ring cooling machine and temperature measuring method based on measuring device |
| CN105571332B (en) * | 2014-10-17 | 2017-10-31 | 宝山钢铁股份有限公司 | Sintering deposit ore bed temperature change measurement apparatus and the temp measuring method based on the device in central cooler |
| CN107884087A (en) * | 2017-12-08 | 2018-04-06 | 鞍钢集团矿业有限公司 | A kind of test device and its method of sinter bed surface temperature |
| CN114774679A (en) * | 2022-04-01 | 2022-07-22 | 安阳钢铁股份有限公司 | Method for controlling thermal state of sinter bed |
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Application publication date: 20130911 |