CN1257379C - Smelting slay layer thickness measuring transducer - Google Patents
Smelting slay layer thickness measuring transducer Download PDFInfo
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- CN1257379C CN1257379C CN 03153876 CN03153876A CN1257379C CN 1257379 C CN1257379 C CN 1257379C CN 03153876 CN03153876 CN 03153876 CN 03153876 A CN03153876 A CN 03153876A CN 1257379 C CN1257379 C CN 1257379C
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- slag
- thickness
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- head
- paper tube
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Abstract
The present invention discloses a sensor for measuring the thickness of slag layers of a smelting furnace, which comprises a fireproof mud head, a conducting wire support frame, a conducting wire, a quick drying cement layer, a paper cap, a protective paper web, etc. A metal wire with high melting point is fixed on the conducting wire support frame and is inserted into the smelting furnace. According to the difference of the electrical conductivity of the slag layers of slag and the electrical conductivity of molten steel, the difference of resistance variation is reflected on a resistance meter. When the metal wire contacts the slag, a resistor is a Komega grade. At this time, an initial value of the thickness of the slag can be recorded. When the metal wire contacts the molten steel at the bottom of the slag, the resistor becomes small instantly to be an omega grade. At this time, a stop value of the thickness of the slag is recorded. Compared with an original method for artificially observing the thickness of the slag layers, the sensor for measuring the thickness of the slag layers of a smelting furnace can scientifically and exactly measure the thickness of the slag layers in the smelting furnace; the sensor for measuring the thickness of the slag layers of a smelting furnace is favorable to controlling the thickness of the slag layers of the smelting furnace. Thus, the quality of the smelting furnace is improved; in addition, the sensor for measuring the thickness of the slag layers of a smelting furnace can exactly measure a position of the liquid surface of the molten steel.
Description
Technical field
The present invention relates to metallurgy industry surveying instrument technical field, particularly smelted furnace cinder layer thickness measuring technique.
Background technology
Thickness of slag layer during the metallurgy industry metal smelting in the stove has considerable influence to metal quality and the composition of smelting, for example in steelmaking process, when slag blanket is thick slag easily in molten steel, when slag blanket is thin in the molten steel impurity content big, therefore, suitable thickness of slag layer is an important technological parameters of steel-making.At present to the measuring method accurately and reliably of thickness of slag layer neither one in the smelting furnace, just estimate thickness of slag layer in the smelting furnace with operating personnel's empiric observation, this must have very mistake with observing the way of estimating, makes the not assurance of metal quality of smelting.
Summary of the invention
The purpose of this invention is to provide a kind of smelted furnace cinder layer thickness measuring, this sensor can be measured thickness of slag layer in the smelting furnace exactly, also can measure the liquid steel level position simultaneously, use this thickness of slag layer survey sensor to control thickness of slag layer in the smelting furnace, thereby can improve the quality of metal smelt by smelting process.
For achieving the above object, the technical scheme that the present invention takes is: a kind of smelted furnace cinder layer thickness measuring comprises fire clay head, paper tube, wire support, copper cash, iron plate, tinsel, paper cap, protection paper web and quick hardening cement layer that fusing point is high; Described fire clay head is inverted boss shape; there is a circular port in the centre; centre, upper surface at this fire clay head is provided with a circular groove; described paper tube is fixedlyed connected with the lower end of mud head; the diameter of bore of paper tube is identical with the diameter of bore of mud head; described wire support is an insulating material pipe; the external diameter of this pipe and the internal diameter of paper tube are complementary; there is a round ring boss bottom of support; the external diameter of boss equals the external diameter of paper tube; described copper cash is two; its lower end is separately fixed on the wire support; the upper end of two copper cash is stretched out the upper end of wire support respectively; described iron plate is two elongated iron plates; its lower end is welded on the upper end of two copper cash respectively; the high lower end wiry of described two fusing points is welded on the upper end of two elongated iron plates respectively; above-mentioned lead and wire support insert in the center pit of paper tube and mud head together; wire support bottom round ring boss is clamped on the lower surface of paper tube; the upper surface of the high mud extraction head in upper end wiry that described two fusing points are high; described quick hardening cement layer is positioned at the upper end of wire support; in the center hole of fire clay head; described paper cap is buckled in the upper end of mud head; and be fixed on by the quick hardening cement layer in the groove of mud head upper end; the external diameter of described protection paper web is identical with the first half cylinder external diameter of boss shape fire clay head, and the upper end fixed bonding of paper web is on the boss of mud head.
Described fire clay head is inverted boss shape, its first half cylinder diameter is greater than Lower Half cylinder diameter, a circular channel is arranged in the centre of mud head, the top of described wire support and lead are placed in this circular channel, one groove is arranged at the top in first half cylinder, and described paper cap is fixed in this groove.
Described wire support is the special-shaped pipe that an insulating material is made, the external diameter of this pipe and the internal diameter of paper tube are complementary, in the periphery, bottom of wire support is a round ring boss, the external diameter of boss equals the external diameter of paper tube, in the time of in the center pit of wire support insertion paper tube and mud head, this round ring boss is clamped on the lower surface of paper tube.
The tinsel that described fusing point is high is a tungsten filament, or molybdenum filament, or the molybdenum and tungsten alloy silk etc.
Smelted furnace cinder layer thickness measuring provided by the invention has following beneficial effect:
1, can measure the interior thickness of slag layer of smelting furnace exactly, the metal quality of smelting is improved.The principle of work of this smelted furnace cinder layer thickness measuring is: two copper conductors and the resistance measurement instrument that will be fixed on the sensor inside conductor support are connected; again the thickness of slag layer survey sensor is placed perpendicular to smelting furnace; the paper cap is positioned at bottom; the protection paper tube is positioned at topmost; make sensor at the uniform velocity fall in the metallurgical furnace by self-con-tained unit; because temperature is very high in the stove; the paper cap that is positioned at the sensor lower end is burnt; two refractory metal silks (for example molybdenum filament) are very big with the resistance value that shows before slag contacts; when touching slag blanket; because slag blanket conduction; the resistance value that the resistance measurement instrument is shown drops to K Ω level rapidly; can write down the thickness of slag layer initial value this moment automatically; along with sensor moves downward; resistance value continues to descend; when molybdenum filament touches the molten steel of slag blanket bottom; because slag slag blanket electric conductivity is different with the molten steel electric conductivity; the resistance value moment that shows on resistance measuring instrument becomes very little; be generally the Ω level; this moment is the stop value of record thickness of slag layer automatically, so thickness of slag layer just can directly demonstrate accurate values.Compare with original employing artificial observation method, adopt this device can scientifically measure thickness of slag layer in the smelting furnace exactly,, just can help controlling thickness of slag layer, smelting quality is improved owing to can accurately measure thickness of slag layer.
2, can accurately measure the liquid steel level position.Also can measure the liquid steel level position simultaneously by this smelted furnace cinder layer thickness measuring, as previously mentioned, when molybdenum filament touched liquid steel level, resistance moment became very little, can demonstrate the liquid steel level position by measuring apparatus.
Description of drawings
Fig. 1 is a smelted furnace cinder layer thickness measuring structural representation;
Fig. 2 is the wire support structural representation;
Fig. 3 is the vertical view of Fig. 2.
Embodiment
With reference to accompanying drawing 1, make boss shape mud head 1 with fire clay, boss is inverted, its first half is the cylinder of external diameter 30mm, long 8mm, Lower Half is the cylinder of external diameter 18mm, long 20mm, the centre of mud head 1 has the circular hole that diameter is 10mm, form cylindrical channel, having diameter in first half cylinder is that 20mm, height are the circular groove of 4mm, it is that 10mm, length are the cylinder of 36mm that the cardboard that described paper tube 2 usefulness wall thickness are 2mm rolls into endoporus, and paper tube 2 is bonded in the lower surface of mud head 1 with fire clay.With reference to accompanying drawing 2 and accompanying drawing 3, the bottom of wire support 3 is that a plastic plate is made round tube, the internal diameter of the external diameter of round tube and paper tube 2 is complementary, be 10mm, bottom periphery at round tube has a round ring boss, and the external diameter 14mm of this boss highly is 2mm, when wire support 3 inserted the cylindrical channel of paper tube 2 and mud head 1 formation, this round ring boss was clamped on the lower surface of paper tube 2.The top of described wire support 3 is the cruciform frame that plastic plate is made, and this cruciform stand drops on the plastic round tube upper end, and is injected into one with plastic round tube.The lower end of two copper cash 4 is separately fixed on the different parts of plastics round tube tube wall of wire support 3; the upper end of two copper cash 4 is passed the upper end of stretching out wire support 3 behind the position, the corresponding both sides of cruciform frame respectively; again the lower end of two elongated iron plates 5 is welded on the upper end of two copper cash 4 respectively; then the lower end of two molybdenum filaments 6 is welded on the upper end of iron plate 5 respectively; the wire support 3 that will fix above-mentioned lead is subsequently penetrated in the cylindrical channel that is made of mud head 1 and paper tube 2 by the endoporus of paper tube 2; as shown in Figure 1; the round ring boss of wire support 3 bottoms is clamped on the bottom of paper tube 2; the distance of mud head 1 upper end is stretched out greatly about about 12mm in the upper end of two molybdenum filaments 6; two molybdenum filaments 6 are separately put the upright position; being poured into quick hardening cement 9 then makes molybdenum filament 6 fixing in the circular hole of mud head 1; the external diameter of described paper cap 7 is 19mm; highly be 20mm; paper cap 7 is buckled in the upper end of mud head 1; paper cap 7 is fixed in the groove of mud head 1 upper end with quick hardening cement 10; it is 30mm that described protection paper web 8 is made external diameter for the thick board rolls of 10mm; length is the cylinder of 1000mm; protection paper web 8 usefulness high-temp glue are bonded on the lower surface of mud head 1 first half cylinder, have so just made the smelted furnace cinder layer thickness measuring.When needs are measured the smelted furnace cinder layer thickness, copper cash on the wire support 34 is connected with resistance measuring instrument, this sensor is placed perpendicular to smelting furnace, by self-con-tained unit sensor is at the uniform velocity fallen in the smelting furnace, its test process and principle are as previously mentioned.
Claims (4)
1, a kind of smelted furnace cinder layer thickness measuring is characterized in that: this sensor comprises fire clay head (1), paper tube (2), wire support (3), copper cash (4), iron plate (5), two tinsel (6), paper cap (7), protection paper web (8), the first quick hardening cement layer (9) and second quick hardening cement layers (10) that fusing point is high; Described fire clay head (1) is inverted boss shape; there is a circular port in the centre; centre, upper surface at this fire clay head (1) is provided with a circular groove; described paper tube (2) is fixedlyed connected with the lower end of mud head (1); the diameter of bore of paper tube (2) is identical with the diameter of bore of mud head (1); described wire support (3) is an insulating material pipe; the internal diameter of the external diameter of this pipe and paper tube (2) is complementary; there is a round ring boss bottom of support (3); the external diameter of boss equals the external diameter of paper tube (2); described copper cash (4) is two; its lower end is separately fixed on the wire support (3); the upper end of two copper cash (4) is stretched out the upper end of wire support (3) respectively; described iron plate (5) is two elongated iron plates; its lower end is welded on the upper end of two copper cash (4) respectively; the lower end of the tinsel (6) that described two fusing points are high is welded on the upper end of two elongated iron plates (5) respectively; above-mentioned copper cash (4); iron plate (5); tinsel that fusing point is high (6) and wire support (3) insert in the center pit of paper tube (2) and mud head (1) together; support (3) bottom round ring boss is clamped on the lower surface of paper tube (2); the upper surface of the high mud extraction head in upper end (1) of the tinsel (6) that described two fusing points are high; the described first quick hardening cement layer (9) is positioned at the upper end of wire support (3); in the center hole of fire clay head (1); described paper cap (7) is buckled in the upper end of mud head (1); and be fixed on by the second quick hardening cement layer (10) in the groove of mud head (1) upper end; the external diameter of described protection paper web (8) is identical with the first half cylinder external diameter of boss shape fire clay head (1), and the upper end fixed bonding of paper web (8) is on the boss of mud head (1).
2, smelted furnace cinder layer thickness measuring according to claim 1, it is characterized in that: described fire clay head (1) is inverted boss shape, its first half cylinder diameter is greater than Lower Half cylinder diameter, in the centre of mud head (1) circular channel is arranged, the top of described wire support (3) and copper cash (4), iron plate (5), the tinsel (6) that fusing point is high are placed in this circular channel, one groove is arranged at the top in first half cylinder, and described paper cap (7) is fixed in this groove.
3, smelted furnace cinder layer thickness measuring according to claim 1, it is characterized in that: described wire support (3) is the special-shaped pipe that an insulating material is made, the internal diameter of the external diameter of this pipe and paper tube (2) is complementary, in the periphery, bottom of wire support (3) is a round ring boss, the external diameter of boss equals the external diameter of paper tube (2), in the time of in the center pit of wire support (3) insertion paper tube (2) and mud head (1), this round ring boss is clamped on the lower surface of paper tube (2).
4, smelted furnace cinder layer thickness measuring according to claim 1 is characterized in that: the tinsel that described fusing point is high (6) is a tungsten filament, or molybdenum filament, or the molybdenum and tungsten alloy silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153876 CN1257379C (en) | 2003-08-26 | 2003-08-26 | Smelting slay layer thickness measuring transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153876 CN1257379C (en) | 2003-08-26 | 2003-08-26 | Smelting slay layer thickness measuring transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1487263A CN1487263A (en) | 2004-04-07 |
| CN1257379C true CN1257379C (en) | 2006-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03153876 Expired - Fee Related CN1257379C (en) | 2003-08-26 | 2003-08-26 | Smelting slay layer thickness measuring transducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN1257379C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666614B (en) * | 2009-10-20 | 2011-08-10 | 北京科技大学 | Device and method for measuring thickness of molten slag layer of mold flux of continuous casting crystallizer |
| CN102384731A (en) * | 2011-10-09 | 2012-03-21 | 安徽工业大学 | Method and device for measuring thickness of refining slag within refining ladle |
| CN105928629A (en) * | 2016-04-29 | 2016-09-07 | 武汉理工大学 | Steel smelting temperature measurement paper clay head and fire-resistant adhesive applied thereto |
| CN107504892B (en) * | 2017-10-13 | 2023-04-28 | 中国恩菲工程技术有限公司 | Device and method for detecting thickness of submerged arc furnace slag layer |
| CN110230975B (en) * | 2019-06-20 | 2021-01-12 | 武汉钢铁有限公司 | Steel slag layer thickness measuring device |
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2003
- 2003-08-26 CN CN 03153876 patent/CN1257379C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1487263A (en) | 2004-04-07 |
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Granted publication date: 20060524 Termination date: 20090928 |