CN105352759A - Molten steel online sampling device - Google Patents
Molten steel online sampling device Download PDFInfo
- Publication number
- CN105352759A CN105352759A CN201510934478.6A CN201510934478A CN105352759A CN 105352759 A CN105352759 A CN 105352759A CN 201510934478 A CN201510934478 A CN 201510934478A CN 105352759 A CN105352759 A CN 105352759A
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- China
- Prior art keywords
- molten steel
- sampling
- line period
- period device
- sampling cup
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a molten steel online sampling device, comprising a sampling cup (2), a sampling rod (1) and a sampling cup lid (3); the sampling rod (1) is parallel with an outer cylindrical generatrix of the sampling cup (2) and is welded on the outer wall of the sampling cup (2). By adopting the above technical solution, nitrogen increase in each procedure in a smelting process can be monitored in real time, accurate data are provided for research of reducing the nitrogen content in molten steel, the error of a sampling nitrogen fixing result is within 5ppm, and a specific-supply steel nitrogen control process is favorable to optimize; the device is simple in structure, easy to make and replace, lower in cost, recyclable, environment-friendly and durable; a nitrogen fixing method is convenient to operate and easy to popularize and use in each large high quality specific steel plant.
Description
Technical field
The invention belongs to the technical field that metallurgical industry is produced.More specifically, the present invention relates to a kind of molten steel on-line period device.
Background technology
Along with the development of metallurgy industry, the requirement of client to steel quality and degree of purity is more and more higher.
ω (N) Effect on Mechanical Properties to steel in steel is larger.When ω in steel (Al), ω (B) content are higher, very easily form the brittle phase of a large amount of AlN, BN.In continuous casting casting cycle, strand regional area is in Two-Dimensional Heat state, its intensity of cooling is higher than the middle part of strand, the AlN produced preferentially separates out along with softer ferritic phase in austenite grain boundary, form the brittle phase of local, plasticity declines, and forms strain concentration zones, causes strand to produce check surface line.
Therefore, most domestic iron and steel enterprise all in the technique by optimizing each operation in smelting process, controls N content in molten steel.But because on-line period determines nitrogen equipment price costly, most domestic producer does not all have special sampling to determine nitrogen equipment, and the nitrogen pick-up value that result in each operation of smelting process cannot accurately be monitored, and brings certain difficulty to the stable of product quality.
Summary of the invention
The invention provides a kind of molten steel on-line period device, its objective is and carry out controlling in time and accurately to the nitrogen increased amount of each operation in smelting process.
To achieve these goals, the technical scheme that the present invention takes is:
Molten steel on-line period device of the present invention, is applied to online liquid steel sampling and determines nitrogen method, and this device comprises sampling cup, thief rod and sampling bowl cover; Described thief rod is parallel to the outside cylinder bus of sampling cup, and is welded on the outer wall of sampling cup.
Described sampling bowl cover adopts fixing thin wire to be fixed on directly over sampling cup.
The inwall of described sampling cup is provided with uniform hydraulic oil coating.
The interior diameter of described sampling cup is Φ 50mm, and overall diameter is Φ 55mm, and length is 150mm.
Described sampling cup adopts common straightcarbon steel to make.
The length of described thief rod is 2500mm;
The diameter of described sampling bowl cover is 60mm.
The material of described sampling bowl cover is wood composite board.
Described molten steel on-line period device comprises sample process equipment, and described sample process equipment comprises flame cutting gun, mechanical processing machine.
In order to realize the goal of the invention identical with technique scheme, the online liquid steel sampling that present invention also offers above-described molten steel on-line period device determines nitrogen method, and to be the process of described method be its technical scheme:
At described sampling cup inwall uniform application hydraulic oil;
Behind the position that ladle is transported to smelting procedure, open suitable argon gas, back down slag blanket above molten steel;
Molten steel on-line period device described in utilization inserts rapidly in molten steel, samples;
After to be sampled, described molten steel on-line period device rim of a cup is placed on ground upward;
After molten steel cools, in cup, form columniform gross sample;
Utilize iron hammer to knock the bottom of sampling cup, described gross sample 5 is taken out; Described sampling cup continues to recycle after again adding sampling bowl cover, thief rod;
After gross sample cooling, cut along gross sample cross section with flame cutting gun, after cutting, obtain gas flame cuttiug sample;
Mechanical processing machine is utilized gas flame cuttiug sample to be processed into the finished product sample of stepped cylindrical shape.
The cross-sectional length of described gas flame cuttiug sample is 20mm, and width is 12mm, is highly 150mm.
The end diameter of described finished product sample is 5.5mm, and length is 100mm; Outside diameter is 15mm, and length is 50mm.
It is 500mm that described sampler inserts the molten steel degree of depth, inserts time controling at 3 ~ 5 seconds.
The present invention adopts technique scheme, can monitor in real time the nitrogen increased amount of each operation in smelting process, and provide accurate data for research reduces nitrogen content in molten steel, sampling determines nitrogen resultant error within 5ppm, is conducive to optimizing specially offered steel control nitrogen technique; This apparatus structure is simple, is easy to make and change, and cost is lower, can be recycled, environmental and durable; Determine nitrogen method easy to operate, easily promote the use of at each large excellent Special Steel Works.
Accompanying drawing explanation
Mark brief description in content shown in accompanying drawing and figure is as follows:
Fig. 1 is molten steel on-line period apparatus structure schematic diagram of the present invention;
Fig. 2 is the gross sample structural representation obtained by device of the present invention;
Fig. 3 is that the present invention carries out to gross sample the schematic diagram that gas cutting obtains gas flame cuttiug sample;
Fig. 4 is finished product sample structure schematic diagram of the present invention.
Be labeled as in figure:
1, thief rod; 2, sampling cup; 3, bowl cover is sampled; 4, fixing thin wire; 5, gross sample; 6, line of cut; 7, gas flame cuttiug sample; 8, finished product sample.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure of the present invention as shown in Figure 1, is a kind of molten steel on-line period device, is applied to online liquid steel sampling and determines nitrogen method, is the molten steel on-line period device of metallurgy industry steelworks.
Determine nitrogen tooling device Problems existing to solve existing sampling and overcome its defect, realize the goal of the invention that on-line period follows the tracks of nitrogen increased amount, the technical scheme that the present invention takes is:
As shown in Figure 1, molten steel on-line period device of the present invention comprises sampling cup 2, thief rod 1 and sampling bowl cover 3; Described thief rod 1 is parallel to the outside cylinder bus of sampling cup 2, and is welded on the outer wall of sampling cup 2.
The present invention adopts technique scheme, can carry out molten steel on-line period, monitors in real time the nitrogen pick-up value of each operation in smelting process, provides certain theoretical foundation for research reduces nitrogen content in molten steel.What on-line period provided by the invention determined the device of nitrogen comprises liquid steel sampling cup, thief rod, sampling bowl cover, thin wire, hydraulic oil; Sample machining device comprises flame cutting gun, mechanical processing machine.
Described sampling bowl cover 3 adopts fixing thin wire 4 to be fixed on directly over sampling cup 2.Described sampling bowl cover 3 is fixedly welded on sampling rim of a cup outer wall by thin wire.
Below the material that molten steel on-line period device of the present invention relates to:
The inwall of described sampling cup 2 is provided with uniform hydraulic oil coating.
Described sampling cup 2 adopts common straightcarbon steel to make.Be specially common straightcarbon steel No. 45 steel.
The material of described sampling bowl cover 3 is wood composite board.
Below the concrete technical parameter of molten steel on-line period device of the present invention:
The interior diameter of described sampling cup 2 is Φ 50mm, and overall diameter is Φ 55mm, and length is 150mm.
The length of described thief rod 1 is 2500mm.
The diameter of described sampling bowl cover 3 is 60mm.
As shown in Figure 1, molten steel on-line period apparatus structure provided by the present invention, comprises the sampling cup 2 utilizing common straightcarbon steel to be processed into, and hydraulic oil is coated in sample cup 2 inwall uniformly, and thief rod 1 is vertically welded on sampling cup 2 outer wall; Sampling bowl cover 3 utilizes fixing thin wire 4 to be fixed on directly over sampling cup 2.
Described molten steel on-line period device comprises sample process equipment, and described sample process equipment comprises flame cutting gun, mechanical processing machine.
The advantage of technique scheme is: installation cost is lower, can be recycled, environmental and durable, is easy to promote the use of at each large excellent Special Steel Works; Apparatus structure is simple, is easy to make and change, easy to operate.
In order to realize the goal of the invention identical with technique scheme, the online liquid steel sampling that present invention also offers above-described molten steel on-line period device determines nitrogen method, and to be the process of described method be its technical scheme:
At described sampling cup 2 inwall uniform application hydraulic oil;
Behind the position that ladle is transported to smelting procedure, open suitable argon gas, back down slag blanket above molten steel;
Utilize molten steel on-line period device as shown in Figure 1 to insert rapidly in molten steel, sample;
After to be sampled, the molten steel on-line period device rim of a cup is as shown in Figure 1 placed on ground upward;
After molten steel cools, in cup, form columniform gross sample 5 as shown in Figure 2;
Utilize iron hammer to knock the bottom of sampling cup 2, described gross sample 5 is taken out; Sampling cup 2 as shown in Figure 1 can continue to recycle after again adding sampling bowl cover 3, thief rod 1;
Until gross sample 5 cool after, with flame cutting gun along gross sample 5 cross section as shown in Figure 3 line of cut 6 cut, obtain gas flame cuttiug sample 7 after cutting;
Mechanical processing machine is utilized gas flame cuttiug sample 7 to be processed into the finished product sample 8 of stepped cylindrical shape as shown in Figure 4.
The beneficial effect of employing technique scheme is: described on-line period determines nitrogen methods, can be monitored by this kind of mode to the nitrogen increased amount of each operation in smelting process, is conducive to optimizing specially offered steel control nitrogen technique.Facts have proved: this kind of mode samples determines nitrogen resultant error within 5ppm.
Parameter after preferred sample processing below:
The cross-sectional length of described gas flame cuttiug sample 7 is as shown in Figure 3 20mm, and width is 12mm; The height of gas flame cuttiug sample 7 is 150mm.
The end diameter of described finished product sample 8 is as shown in Figure 4 5.5mm, and length is 100mm; Outside diameter is 15mm, and length is 50mm.
It is 500mm that sampler as shown in Figure 1 inserts the molten steel degree of depth, inserts time controling at 3 ~ 5 seconds.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (9)
1. a molten steel on-line period device, is applied to online liquid steel sampling and determines nitrogen method, it is characterized in that: this device comprises sampling cup (2), thief rod (1) and sampling bowl cover (3); Described thief rod (1) is parallel to the outside cylinder bus of sampling cup (2), and is welded on the outer wall of sampling cup (2).
2. according to molten steel on-line period device according to claim 1, it is characterized in that: described sampling bowl cover (3) adopts fixing thin wire (4) to be fixed on directly over sampling cup (2).
3. according to molten steel on-line period device according to claim 1, it is characterized in that: the inwall of described sampling cup (2) is provided with uniform hydraulic oil coating.
4. according to molten steel on-line period device according to claim 1, it is characterized in that: the interior diameter of described sampling cup (2) is Φ 50mm, and overall diameter is Φ 55mm, and length is 150mm.
5. according to molten steel on-line period device according to claim 1, it is characterized in that: described sampling cup (2) adopts common straightcarbon steel to make.
6. according to molten steel on-line period device according to claim 1, it is characterized in that: the length of described thief rod (1) is 2500mm.
7. according to molten steel on-line period device according to claim 1, it is characterized in that: the diameter of described sampling bowl cover (3) is 60mm.
8. according to molten steel on-line period device according to claim 1, it is characterized in that: the material of described sampling bowl cover (3) is wood composite board.
9. according to molten steel on-line period device according to claim 1, it is characterized in that: described molten steel on-line period device comprises sample process equipment, and described sample process equipment comprises flame cutting gun, mechanical processing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934478.6A CN105352759A (en) | 2015-12-14 | 2015-12-14 | Molten steel online sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934478.6A CN105352759A (en) | 2015-12-14 | 2015-12-14 | Molten steel online sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN105352759A true CN105352759A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934478.6A Pending CN105352759A (en) | 2015-12-14 | 2015-12-14 | Molten steel online sampling device |
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| Country | Link |
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| CN (1) | CN105352759A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333101A (en) * | 2019-08-14 | 2019-10-15 | 建龙北满特殊钢有限责任公司 | A kind of novel separation steel slag molten steel sampler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432573Y (en) * | 2000-07-25 | 2001-05-30 | 宝山钢铁股份有限公司 | Molten steel sampling cup |
| CN2653480Y (en) * | 2003-11-07 | 2004-11-03 | 王喜云 | Molten steel sampler |
| CN201215528Y (en) * | 2008-06-02 | 2009-04-01 | 莱芜钢铁股份有限公司 | Molten steel sampler for refining and continuous casting |
| CN201740670U (en) * | 2010-06-17 | 2011-02-09 | 宝山钢铁股份有限公司 | Molten steel sampling device |
| CN202033219U (en) * | 2011-03-24 | 2011-11-09 | 河北钢铁股份有限公司邯郸分公司 | Molten steel sampler for electrolysis of small sample |
| CN203203829U (en) * | 2013-05-07 | 2013-09-18 | 王凯斌 | Pollution-free liquid steel sampling barrel |
| CN204694496U (en) * | 2015-05-08 | 2015-10-07 | 北京首钢股份有限公司 | A kind of cylinder sampler |
| CN205228875U (en) * | 2015-12-14 | 2016-05-11 | 芜湖新兴铸管有限责任公司 | Online sampling device of molten steel |
-
2015
- 2015-12-14 CN CN201510934478.6A patent/CN105352759A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432573Y (en) * | 2000-07-25 | 2001-05-30 | 宝山钢铁股份有限公司 | Molten steel sampling cup |
| CN2653480Y (en) * | 2003-11-07 | 2004-11-03 | 王喜云 | Molten steel sampler |
| CN201215528Y (en) * | 2008-06-02 | 2009-04-01 | 莱芜钢铁股份有限公司 | Molten steel sampler for refining and continuous casting |
| CN201740670U (en) * | 2010-06-17 | 2011-02-09 | 宝山钢铁股份有限公司 | Molten steel sampling device |
| CN202033219U (en) * | 2011-03-24 | 2011-11-09 | 河北钢铁股份有限公司邯郸分公司 | Molten steel sampler for electrolysis of small sample |
| CN203203829U (en) * | 2013-05-07 | 2013-09-18 | 王凯斌 | Pollution-free liquid steel sampling barrel |
| CN204694496U (en) * | 2015-05-08 | 2015-10-07 | 北京首钢股份有限公司 | A kind of cylinder sampler |
| CN205228875U (en) * | 2015-12-14 | 2016-05-11 | 芜湖新兴铸管有限责任公司 | Online sampling device of molten steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333101A (en) * | 2019-08-14 | 2019-10-15 | 建龙北满特殊钢有限责任公司 | A kind of novel separation steel slag molten steel sampler |
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Application publication date: 20160224 |
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