DE895161C - Device for measuring the temperature of the steel bath in the blowing converter - Google Patents
Device for measuring the temperature of the steel bath in the blowing converterInfo
- Publication number
- DE895161C DE895161C DET894D DET0000894D DE895161C DE 895161 C DE895161 C DE 895161C DE T894 D DET894 D DE T894D DE T0000894 D DET0000894 D DE T0000894D DE 895161 C DE895161 C DE 895161C
- Authority
- DE
- Germany
- Prior art keywords
- wind
- converter
- bath
- temperature
- nozzle
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 13
- 239000010959 steel Substances 0.000 title claims description 13
- 238000007664 blowing Methods 0.000 title claims description 3
- 230000005855 radiation Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
- G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0818—Waveguides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Radiation Pyrometers (AREA)
Description
Es ist bekannt, daß beim Windfrischprozeß die Höhe und der Verlauf der Temperatur in engem Zusammenhang mit der Art und dem Ablauf der metallurgischen Vorgänge stehen und damit maßgebend die Eigenschaften des Stahles bedingen. So ist z. B. bekannt, daß der Gehalt des Stahles an Stickstoff, Phosphor und Sauerstoff durch die Temperatur während des Herstellungsprozesses beeinflußt wird. Nun sind diese Elemente so wichtige Faktoren für die Güte des Stahles, daß die Möglichkeit, durch eine Meßeinrichtung den Temperaturgang des Bades während des Windfrischprozesses zu überwachen, eine bedeutende Erleichterung und Sicherheit des Herstellungsverfahrens im Sinne einer Steigerung der Wirtschaftlichkeit und der Güte mit sich bringt. It is known that in the wind freshening process, the height and the course the temperature closely related to the type and sequence of the metallurgical Processes stand and thus determine the properties of the steel. So is z. B. known that the content of the steel of nitrogen, phosphorus and oxygen is influenced by the temperature during the manufacturing process. now are these elements are so important factors for the quality of the steel that the possibility of the temperature profile of the bath during the wind-freshening process by means of a measuring device to monitor, a significant facilitation and safety of the manufacturing process in the sense of an increase in profitability and quality.
Es sind bereits Vorschläge und Versuche bekannt, durch Anvisieren des Bades durch die Konvertermündung mit optischen Temperaturmeßgeräten die Badtemperatur zu bestimmen. Der große Nachteil dieser Verfahren liegt nun darin, daß die Lichtabsorption durch die Flamme und den Auswurf, ebenso die Reflexion der Flamme an der Badoberfläche so stark veränderlich sind, daß sie eine klare Beziehung zwischen der Anzeige des Meßinstrumentes und der Badtemperatur ausschließen. There are already suggestions and attempts known by sighting of the bath through the converter mouth with optical temperature measuring devices the bath temperature to determine. The major disadvantage of this method is that the light absorption through the flame and the ejection, as well as the reflection of the flame on the bath surface are so variable that they have a clear relationship between the display of the Exclude the measuring instrument and the bath temperature.
Ähnliche Nachteile haften der Methode an, durch Anvisieren der Flamme die Badtemperatur zu bestimmen. Nach einem anderen, noch nicht zum Stande der Technik gehörenden Vorschlag soll die Messung der Temperatur des Bades mittels eines Strahlungsmeßgerätes erfolgen, welches in Achsrichtung hinter einer Winddüse des Konverterbodens oder hinter einer besonderen, seitlich in der Konverterwand unterhalb der Badoberfiäche befindlichen Winddüse angeordnet ist.Similar disadvantages are inherent in the method of targeting the flame determine the bath temperature. According to another, not yet at the state of the art The corresponding proposal is to measure the temperature of the bath by means of a radiation meter take place, which is in the axial direction behind a nozzle of the converter floor or behind a special, laterally in the converter wall below the bathroom surface located wind nozzle is arranged.
Die Nachteile dieser bekannten Verfahren werden erfindungsgemäß dadurch vermieden, daß die Strahlung des Bades durch einen in der Konverterwand vorgesehenen luftdurchströmten Kanal gemessen wird. Dieser Kanal kann oberhalb des Bades oder im Bad münden. Die den Kanal in Richtung zu dem Konverterinnern durchströmende Luft hat den Zweck, ein Eindringen des Stahlbades bzw. von Rauch, Flammen und Auswurf in den Kanal zu verhindern. Mit der Einrichtung nach der Erfindung ist eine sichere Temperaturkontrolle möglich. According to the invention, the disadvantages of these known methods are thereby eliminated avoided that the radiation of the bath through a provided in the converter wall air-flow channel is measured. This channel can be above the bath or flow into the bathroom. The air flowing through the duct in the direction of the interior of the converter has the purpose of a penetration of the steel bath or of smoke, flames and ejection to prevent in the canal. With the device according to the invention is a safe Temperature control possible.
In der Zeichnung sind einige Ausführungsbei spiele der Erfindung schematisch dargestellt, und zwar zeigen Abb. I und 2 je ein Ausführungsbeispiel im Schnitt. In the drawing, some Ausführungsbei are games of the invention shown schematically, namely Fig. I and 2 each show an embodiment on average.
Gemäß Abb. I ist der Kanal a zum Leiten des Strahles auf das Stahlbad-i gerichtet. Den Durchmesser des Kanals a wählt man so groß, daß bei ausreichendem Strahlungsquerschnitt die Haltbarkeit des Kanals während der Konverterreise gesichert ist. Versuche haben einen günstigen Kanaldurchmesser von 30 bis 100 mm ergeben. Er wird zweckmäßig durch ein Rohr b aus feuerfestem Werkstoff oder aus hitze- und zunderfreiem Stahl gebildet, das in die Konverterwand eingemauert ist. According to Fig. I, the channel a for guiding the beam onto the steel bath-i directed. The diameter of the channel a is chosen to be so large that if it is sufficient Radiation cross-section ensured the durability of the channel during the converter trip is. Tests have shown a favorable channel diameter of 30 to 100 mm. It is expediently through a tube b made of refractory material or from heat and made of scale-free steel that is built into the converter wall.
Der Kanal a mündet an dem dem Stahlbad i entgegengesetzten Ende in einen Windkasten e, der mit dem Windkasten bzw. der Windleitung des Konverters verbunden ist, so daß beim Blasen des Konverters auch gleichzeitig der Kanal a von Luft durchströmt wird. Der Windkasten besitzt ein strahlendurchlässiges Fenster d, durch das die Strahlen des Stahlbades auf ein Temperaturmeßgerät g fallen.The channel a opens at the end opposite the steel bath i a wind box e, which is connected to the wind box or the wind pipe of the converter is, so that when blowing the converter, air flows through channel a at the same time will. The wind box has a radiolucent window d through which the Rays of the steel bath fall on a temperature measuring device g.
Bei dem Ausführungsbeispiel nach Abb. 2 ist ein besonderes Fenster im Windkasten überflüssig geworden, indem der Kanal a an den Windkasten mittels einer injektorartig wirkenden Düse angeschlossen ist. Diese injektorartige Düse besteht aus dem Düsenfohr / unld dem Düsenanfsatz e. Der Innendurchmesser der Düsef ist so groß gewählt, daß die Strahlung des Stahlbades i auf das Meßgerät hindurchfallen kann. Eine Absperrung der Düse t gegen die Außenluft ist nicht erforderlich, da die durch dieLeitung h zuströmendeLuft infolge der injektorartigen Verbindung mit dem Rohr a durch die Düsen noch Außenluft einsaugt. Der Querschnitt der Düse f steht also frei für die Messung der Strahlung zur Verfügung. Das Temperaturmeßgerät wird zweckmäßig unmittelbar mit dem Düsenaufsatz verbunden. In the embodiment according to Fig. 2 there is a special window become superfluous in the wind box by connecting the channel a to the wind box by means of is connected to an injector-like acting nozzle. This injector-like nozzle consists of the nozzle head / and the nozzle attachment e. The inside diameter of the nozzle f is chosen so large that the radiation of the steel bath i fall through on the measuring device can. A shut-off of the nozzle t from the outside air is not necessary because the air flowing through the line h due to the injector-like connection with the pipe a still sucks in outside air through the nozzles. The cross section of the nozzle f stands thus freely available for measuring the radiation. The temperature measuring device will expediently connected directly to the nozzle attachment.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET894D DE895161C (en) | 1941-11-08 | 1941-11-08 | Device for measuring the temperature of the steel bath in the blowing converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET894D DE895161C (en) | 1941-11-08 | 1941-11-08 | Device for measuring the temperature of the steel bath in the blowing converter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE895161C true DE895161C (en) | 1953-11-02 |
Family
ID=7543217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET894D Expired DE895161C (en) | 1941-11-08 | 1941-11-08 | Device for measuring the temperature of the steel bath in the blowing converter |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE895161C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1082927B (en) * | 1956-11-26 | 1960-06-09 | Huettenwerk Oberhausen Ag | Device for measuring the bath temperature in blowing converters u. like |
FR2451028A1 (en) * | 1979-03-05 | 1980-10-03 | Kawasaki Heavy Ind Ltd | METHOD AND DEVICE FOR PROBING IN A REFINING OVEN OR THE LIKE FOR MEASURING TEMPERATURE, FOR SAMPLING, OR FOR THESE TWO OPERATIONS |
WO1992020992A1 (en) * | 1991-05-13 | 1992-11-26 | Hoogovens Groep Bv | Instrument for detecting the presence of a body and rolling mill provided with such an instrument |
EP0843166A1 (en) * | 1996-11-14 | 1998-05-20 | Fuchs Systemtechnik Gmbh | Device and method for measuring the temperature of high-temperature melts, and a crucible equipped with such a device |
WO2006072418A1 (en) * | 2004-12-30 | 2006-07-13 | Sms Demag Ag | Device for detecting the temperature and for analyzing molten masses in metallurgical vessels |
-
1941
- 1941-11-08 DE DET894D patent/DE895161C/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1082927B (en) * | 1956-11-26 | 1960-06-09 | Huettenwerk Oberhausen Ag | Device for measuring the bath temperature in blowing converters u. like |
FR2451028A1 (en) * | 1979-03-05 | 1980-10-03 | Kawasaki Heavy Ind Ltd | METHOD AND DEVICE FOR PROBING IN A REFINING OVEN OR THE LIKE FOR MEASURING TEMPERATURE, FOR SAMPLING, OR FOR THESE TWO OPERATIONS |
WO1992020992A1 (en) * | 1991-05-13 | 1992-11-26 | Hoogovens Groep Bv | Instrument for detecting the presence of a body and rolling mill provided with such an instrument |
AU655028B2 (en) * | 1991-05-13 | 1994-12-01 | Hoogovens Groep Bv | Instrument for detecting the presence of a body and rolling mill provided with such an instrument |
US5408096A (en) * | 1991-05-13 | 1995-04-18 | Hoogovens Groep B.V. | Instrument for a centrifugal separator for detecting the presence of a body and rolling mill provided with such an instrument |
EP0843166A1 (en) * | 1996-11-14 | 1998-05-20 | Fuchs Systemtechnik Gmbh | Device and method for measuring the temperature of high-temperature melts, and a crucible equipped with such a device |
WO2006072418A1 (en) * | 2004-12-30 | 2006-07-13 | Sms Demag Ag | Device for detecting the temperature and for analyzing molten masses in metallurgical vessels |
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