CN203846046U - On-line blast furnace temperature detection and acquisition system - Google Patents
On-line blast furnace temperature detection and acquisition system Download PDFInfo
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- CN203846046U CN203846046U CN201420272925.7U CN201420272925U CN203846046U CN 203846046 U CN203846046 U CN 203846046U CN 201420272925 U CN201420272925 U CN 201420272925U CN 203846046 U CN203846046 U CN 203846046U
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Abstract
The utility model discloses an on-line blast furnace temperature detection and acquisition system which comprises a channel switching module and a single chip, wherein the channel switching module is respectively connected with a thermocouple temperature detecting probe, an ultrasonic ranging probe and a single modulation module; the ultrasonic ranging probe is connected with a DC400-800V module; the single modulation module is connected with an A/D (Analog-to-Digital) conversion module; the single chip is connected with a wireless module, an A/D conversion module, a display, functional keys and the DC400-800V module; an industrial personal computer is connected with the wireless module. By mounting furnace lining thickness and temperature acquirers at furnace lining parts of a blast furnace body and a bosh, the system can detect the thickness and the temperature of the furnace lining, the temperature of a blast furnace can be obtained by calculating according to the heat conduction principle, the furnace lining thickness and the temperature parameter, and real-time on-line detection on the temperature of the blast furnace is achieved.
Description
Technical field
The utility model relates to a kind of blast furnace temperature and detects online acquisition system, belongs to blast furnace temperature detection technique field.
Background technology
From blast-furnace smelting flow process, the blast furnace ironmaking process under high temperature, high pressure, enclosed environment, molten iron, slag, the iron ore of molten state and mixture, the hot gas flow etc. of coke of thawing have formed complicated fluid dynamics problem.
Furnace lining is constantly etched under these strong physical actions and chemical reaction, and traditional direct-detection means cannot be applied.The data such as blast furnace temperature, lining thickness often by outside, indirectly, the measuring method of stickiness obtains while having.The characteristics such as that the operating mechanism of blast furnace often has is non-linear, time lag, higher-dimension, large noise, distribution parameter, cause at present the generally furnace temperature prediction control model of application to be also difficult to accurate and effective.
Do not have reliable furnace temperature prediction mathematical model to instruct, make operation with certain uncertainty, affected molten steel quality and blast furnace campaign.
In view of the critical role of blast-furnace smelting in industrial production, blast furnace investigators were devoted to improve the ways and means that blast furnace detects in recent years, and wherein the detection of furnace temperature is again the hot issue during blast furnace detects.The domestic research of the thermometric for molten iron, air port and furnace roof is more abundant, and method means are gradually improved, and only the thermometric of shaft and bosh are rarely had to report.
The bulk information that furnace temperature prediction model needs derives from test set, and reasoning result also needs to detect data and confirms.
If install effective test sets of parameter such as body of heater scaling loss situation, shape of charge level on blast furnace, can greatly promote the development of blast furnace temperature prognoses system.
Utility model content
The utility model technical issues that need to address are just to overcome the defect of prior art, provide a kind of blast furnace temperature to detect online acquisition system, it installs lining thickness, Temperature sampler by the furnace lining position at blast furnace stack, bosh, detect lining thickness and temperature, calculate according to heat transfer principle and lining thickness and temperature parameter, obtain high furnace temperature, realize blast furnace temperature real-time online and detect.The temperature data of the utility model Real-time Collection shaft, bosh, and detect formed by multiple measurement point, the sensor of each measurement point is made up of multiple probes again, data are multidimensional, complexity more, quantity of information is larger.Therefore the utility model is to have very much Research Significance and real promotion prospect.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of blast furnace temperature to detect online acquisition system, described system comprises channel switching module and micro-chip, channel switching module is connected with thermocouple temperature measurement probe, ultrasonic distance measuring probe and signal condition module respectively, ultrasonic distance measuring probe is connected with DC400-800V module, signal condition module is connected with A/D modular converter, micro-chip is connected with wireless module, A/D modular converter, indicating meter, function key, DC400-800V module, and industrial computer is connected with wireless module.
Described ultrasonic ranging probe is installed in metal measuring staff, and metal measuring staff is imbedded in the furnace wall of blast furnace stack, bosh; In the furnace wall apart from metal measuring staff a distance, solid is imbedded armored thermocouple temperature measurement probe.
Blast furnace temperature online test method, comprises the steps:
Step 1: the laying that blast furnace temperature is detected online to acquisition system environmental facies in complicated State of Blast Furnace are combined, at hot blast to blowing up, solid charge wash away downwards with the environment such as complicated chemical reaction under, set up sensor with ANSYS software and lay realistic model, Reasonable Arrangement to sensor instructs, and guarantees the accuracy of synchronizeing erosion and furnace lining thermometric of furnace lining and metal measuring staff in lining thickness collector;
Step 2: imbed metal measuring staff as range finding medium in the furnace wall of shaft, bosh, at the cold junction of metal measuring staff, piezoquartz ultrasonic ranging probe is installed, utilize ultrasonic measuring distance technology to measure bar long, i.e. lining thickness;
Step 3: in the space centered by metal measuring staff, in the furnace lining of measuring staff a distance, solid is imbedded the thermocouple temperature measurement probe of temperature of furnace lining collector, measures the temperature of the point for measuring temperature of burying underground in furnace lining;
Step 4: the data transmission that by wireless module, thickness is gathered to the lining thickness in micro-chip and the temperature of furnace lining in temperature acquisition micro-chip respectively, to industrial computer, according to the relation of temperature in stove and lining thickness and temperature of furnace lining, calculates furnace temperature.
Blast furnace temperature described in the utility model detects acquisition system signals transmission online:
Channel switching module is chosen after a road collector, the temperature of furnace lining collecting or thickness data are transferred to signal condition module, signal condition module is transferred to A/D modular converter by the signal after conditioning and carries out mould, number conversion, send into afterwards micro-chip and carry out the processing such as linearizing, scale conversion, in the temperature of furnace lining that obtains after processing and lining thickness data are shown on indicating meter, by two wireless modules, be transferred to industrial computer, according to heat transfer principle with detect data, carry out blast furnace temperature in line computation and storage, demonstration.Function key is used for carrying out the switching input of different parameters.
Principle of work of the present utility model is: in the furnace wall of shaft, bosh, imbed metal measuring staff as thickness measuring medium, Thicknesser probe issues out ultrasonic signal in high pressure excitation and carries out distance measurement, the signal of its output is nursed one's health through signal conditioning circuit, change and thickness signal is become to numerary signal send into micro-chip by A/D, and show.Meanwhile, thickness signal transfers to industrial computer through wireless module and stores and show.In the furnace wall apart from metal measuring staff a distance, solid is imbedded armored thermopair (temperature probe), measure the temperature of the point for measuring temperature of burying underground in furnace lining, the signal of thermocouple temperature measurement probe output, after thermocouple signal processing module is processed, is converted to numerary signal and sends into micro-chip and process and display.Meanwhile, temperature of furnace lining signal imports industrial computer into by wireless module and stores and show.Bury temperature a little by detecting lining thickness underground with corresponding, utilize heat transfer principle, in industrial computer, can calculate in real time furnace temperature-furnace lining hot-side temperature.
Feature of the present utility model is the temperature data of Real-time Collection shaft, bosh, and detect formed by multiple measurement point, the sensor of each measurement point is made up of multiple probes again, data are multidimensional, complexity more, quantity of information is larger.Therefore the utility model is to have very much Research Significance and real promotion prospect.
The beneficial effects of the utility model and advantage are, the utility model is that the blast furnace temperature based on lining thickness and temperature of furnace lining detects collector online, burying underground through furnace wall of lining thickness sensor, the cold junction that is embedded in furnace lining of temperature of furnace lining sensor is multiple spot and distributes, to avoid, in the situation that shaft, bosh suffer erosion, being positioned at furnace lining place, the thermopair that adopts traditional method to bury underground is also burnt, or the erosion degree of furnace lining cannot measure, bring difficulty to furnace temperature detection herein.This method can detect blast furnace temperature online, continuously, can guarantee real-time, accuracy that furnace temperature detects.With the control strategy that instructs the blast furnace such as filler, air-supply to produce, furnace temperature is remained on to optimum regime, improve molten steel quality and output, increase blast furnace campaign.
Brief description of the drawings
Fig. 1 is the utility model Wall of Blast Furnace axial section, and kiln lining thickness measuring sensor is inserted along furnace wall thickness direction in the center in region between adjacent four copper cooling walls.
In Fig. 1,1-1 is Wall of Blast Furnace, and 1-2 is lining thickness sensor, and 1-3 is copper cooling wall;
Fig. 2 is the utility model Wall of Blast Furnace radial section figure, thermocouple temperature measurement sensor bury principle underground: in Fig. 2,2-1 is furnace lining; 2-2 is edge brick; 2-3 is cooling stave; 2-4 is cooling stave fin; 2-5 is water-cooled tube; 2-6 is filler, and 2-7 is furnace shell; 2-8 is temperature of furnace lining sensor.
Fig. 3 is that the utility model blast furnace temperature detects acquisition system functional block diagram online.
Embodiment
As shown in Figure 3, the utility model provides a kind of blast furnace temperature to detect online acquisition system, described system comprises channel switching module and micro-chip, channel switching module is connected with thermocouple temperature measurement probe, ultrasonic distance measuring probe and signal condition module respectively, ultrasonic distance measuring probe is connected with DC400-800V module, signal condition module is connected with A/D modular converter, micro-chip is connected with wireless module, A/D modular converter, indicating meter, function key, DC400-800V module, and industrial computer is connected with wireless module.
Blast furnace temperature detects acquisition system signals transmission online:
Channel switching module is chosen after a road collector, the temperature of furnace lining collecting or thickness data are transferred to signal condition module, signal condition module is transferred to A/D modular converter by the signal after conditioning and carries out mould, number conversion, send into afterwards micro-chip and carry out the processing such as linearizing, scale conversion, in the temperature of furnace lining that obtains after processing and lining thickness data are shown on indicating meter, by two wireless modules, be transferred to industrial computer, according to heat transfer principle with detect data, carry out blast furnace temperature in line computation and storage, demonstration.Function key is used for carrying out the switching input of different parameters.
As depicted in figs. 1 and 2, described ultrasonic ranging probe is installed in metal measuring staff, and metal measuring staff is imbedded in the furnace wall of blast furnace stack, bosh; In the furnace wall apart from metal measuring staff a distance, solid is imbedded armored thermocouple temperature measurement probe.
Fig. 1 is the utility model Wall of Blast Furnace axial section, and in Fig. 1,1-1 is Wall of Blast Furnace, and 1-2 is lining thickness sensor, and 1-3 is copper cooling wall; The center in region between adjacent four copper cooling walls, inserts kiln lining thickness measuring sensor along furnace wall thickness direction.
Fig. 2 is the utility model Wall of Blast Furnace radial section figure, thermocouple temperature measurement sensor bury principle underground: in Fig. 2,2-1 is furnace lining; 2-2 is edge brick; 2-3 is cooling stave; 2-4 is cooling stave fin; 2-5 is water-cooled tube; 2-6 is filler, and 2-7 is furnace shell; 2-8 is temperature of furnace lining sensor.
1) think that the temperature of furnace lining circumferential direction is identical, buries thermopair underground at the radial section of furnace wall;
2) for fear of the scaling loss of thermopair, on the section of furnace lining cold junction, bury five-element's thermopair underground, five of every row.
3) consider the error that theoretical analysis exists, in order to improve the precision of blast furnace temperature-measuring, in furnace lining, bury multiple thermopairs underground, distribute to obtain temperature of furnace lining.
According to the temperature of point for measuring temperature and the distance of this point apart from furnace lining hot junction, just can determine the temperature in furnace lining hot junction.
Be specially:
Step 1: the laying that blast furnace temperature is detected online to acquisition system combines with complicated furnace inner environment, at hot blast to blowing up, solid charge wash away downwards with the environment such as complicated chemical reaction under, set up collector with ANSYS software and lay realistic model, Reasonable Arrangement to sensor instructs, and guarantees the accuracy of synchronizeing erosion and furnace lining thermometric of furnace lining and measuring staff in thickness measuring collector.
Step 2: imbed metal measuring staff as range finding medium in the furnace wall of shaft, bosh, at the cold junction of measuring staff, piezoquartz (range finding probe) is installed, utilize ultrasonic measuring distance technology to measure bar long, i.e. lining thickness.In Wall of Blast Furnace axial section, lining thickness collector is arranged on the centre of two sides copper cooling wall, and hot junction and the furnace lining of measuring staff are held level with both hands together.As shown in Figure 1.
Step 3: in the space centered by measuring staff, in the furnace lining of measuring staff a distance, solid is imbedded temperature of furnace lining collector (thermocouple temperature measurement probe), measures the temperature of the point for measuring temperature of burying underground in furnace lining.In Wall of Blast Furnace radial section figure, be followed successively by from outside to inside: furnace shell, filler, copper cooling wall, edge brick, furnace lining.Temperature of furnace lining installation of sensors is in the furnace lining part of Wall of Blast Furnace, along parallel installation 5 row of isothermal surface, 5 thermopairs of every row.The temperature of furnace lining scope detecting is: 700-1200 DEG C.As shown in Figure 2.
Step 4: by wireless module the data transmission that represents lining thickness and temperature of furnace lining in micro-chip to industrial computer, utilize heat transfer principle, the temperature measuring model of setting up according to temperature in stove and lining thickness and temperature of furnace lining, calculates furnace temperature.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being amplified out thus or variation are still among protection domain of the present utility model.
Claims (2)
1. a blast furnace temperature detects acquisition system online, it is characterized in that, described system comprises channel switching module and micro-chip, channel switching module is connected with thermocouple temperature measurement probe, ultrasonic distance measuring probe and signal condition module respectively, ultrasonic distance measuring probe is connected with DC400-800V module, signal condition module is connected with A/D modular converter, and micro-chip is connected with wireless module, A/D modular converter, indicating meter, function key, DC400-800V module, and industrial computer is connected with wireless module.
2. blast furnace temperature as claimed in claim 1 detects acquisition system online, it is characterized in that, described ultrasonic ranging probe is installed in metal measuring staff, and metal measuring staff is imbedded in the furnace wall of blast furnace stack, bosh; In the furnace wall apart from metal measuring staff a distance, solid is imbedded armored thermocouple temperature measurement probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272925.7U CN203846046U (en) | 2014-05-27 | 2014-05-27 | On-line blast furnace temperature detection and acquisition system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420272925.7U CN203846046U (en) | 2014-05-27 | 2014-05-27 | On-line blast furnace temperature detection and acquisition system |
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| CN203846046U true CN203846046U (en) | 2014-09-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966377A (en) * | 2014-05-27 | 2014-08-06 | 内蒙古科技大学 | Blast-furnace temperature on-line detection and acquisition system and on-line detection method |
| CN113088602A (en) * | 2021-03-31 | 2021-07-09 | 成渝钒钛科技有限公司 | Furnace temperature control device for vanadium-titanium blast furnace and use method thereof |
| CN114657302A (en) * | 2022-03-04 | 2022-06-24 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Blast furnace temperature on-line measuring system |
-
2014
- 2014-05-27 CN CN201420272925.7U patent/CN203846046U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966377A (en) * | 2014-05-27 | 2014-08-06 | 内蒙古科技大学 | Blast-furnace temperature on-line detection and acquisition system and on-line detection method |
| CN103966377B (en) * | 2014-05-27 | 2015-12-09 | 内蒙古科技大学 | Blast furnace temperature on-line checkingi acquisition system and online test method |
| CN113088602A (en) * | 2021-03-31 | 2021-07-09 | 成渝钒钛科技有限公司 | Furnace temperature control device for vanadium-titanium blast furnace and use method thereof |
| CN114657302A (en) * | 2022-03-04 | 2022-06-24 | 宁波市计量测试研究院(宁波新材料检验检测中心) | Blast furnace temperature on-line measuring system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20151209 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |