CN102854035B - Sublance system and the method taking sample - Google Patents
Sublance system and the method taking sample Download PDFInfo
- Publication number
- CN102854035B CN102854035B CN201210193222.0A CN201210193222A CN102854035B CN 102854035 B CN102854035 B CN 102854035B CN 201210193222 A CN201210193222 A CN 201210193222A CN 102854035 B CN102854035 B CN 102854035B
- Authority
- CN
- China
- Prior art keywords
- sublance
- purge gas
- sample
- probe
- hole
- 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.)
- Active
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/42—Features relating to gas injection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention relates to a kind of for taking probe and its sampling method of high-quality sample, the probe of high-quality sample of the present invention, it is characterized in that, comprising the probe of the detector possessed for measuring furnace interior temperature etc., for installing described probe and possessing the retainer enabling the gap of purge gas between outside arm and retainer flow into the maintenance frame aperture of sample tap inside, for supporting described retainer and carrying out in the sublance system of the sublance moved up and down in described stove, tap is possessed at the inside arm of described probe, this tap enables the purge gas flowed into from the gap between outside arm and inner arm flow into sample tap inside, the hole, upper room that the purge gas of inflow is passed through is possessed in the upper room of described sample tap.According to the present invention, the molten steel sample that slag doping can be taked less and sampling success ratio can be significantly improved.In addition, the time and labour cost that spend because sampling failure can be reduced, and produce the economic effect reduced costs.
Description
Technical field
The present invention relates to a kind of sublance system and the method taking sample, more particularly, relate to a kind of as follows possess for taking the sublance system of the probe of high-quality sample to control slag and to be mixed in molten steel sample and the sampling method of high-quality sampling can be realized, described for taking the probe of high-quality sample can control and apply flexibly the purge gas such as nitrogen (purge gas), use the object of the purge gas such as described nitrogen as follows: as converter, refining furnace (AOD etc.) is such, due to slag amount (slag volume) take molten steel sample with auxiliary lance probe how and under sampling property rugged environment time, prevent retainer accumulated inside tar (tar).
Background technology
In general, in order to the state of the temperature and motlten metal that confirm the motlten metal in converter, need to take molten steel sample.For this reason, sublance (sublance) is periodically impregnated in motlten metal repeatedly.Sublance system generally includes: the sublance of major axis, and it is connected with upper and lower driving body; Retainer, it is connected with sublance lower end; Probe, wraps retainer when being mounted to often to measure and the structure that is depleted.Described sublance comprises the signal wire measured signal that probe is launched being passed to operator, and owing to moving to the furnace interior of high temperature, be therefore generally all provided with the cooling device flowing chilled water or the purge gas flow channel of the purge gas such as nitrogen that flows in inside.
Fig. 1 is the schematic perspective view of an example of sublance system for illustration of prior art.As shown in Figure 1, in described sublance, probe 200 is arranged on the retainer of sublance 400, and sublance 400 is arranged on and guides on railway carriage or compartment 70.Making to be wound with by drive motor 60 guides the cylinder 80 of the wire rope 90 in railway carriage or compartment 70 to rotate, thus sublance 400 is declined.The decline of sublance 400 makes probe 200 be immersed in the molten steel of stove 100 inside through precipitation hole 101, final measure molten steel temperature and composition take sample.
Subsequently, make cylinder 80 carry out reverse rotation by drive motor 60, then guide railway carriage or compartment 70 and sublance 400 to be risen by the rising of wire rope 90.
But, when using the sample tap be installed on described sublance to take molten steel sample, the nitrogen (N of inflow sublance inside must be made
2) or the purge gas (purge gas) such as air (air) surging and constantly flow in the inlet of sample tap by the gap between outside arm and inner arm, like this, even if when the inlet of sample tap shifts to an earlier date opening, situation about occurring because the pressure of purge gas (purge gas) makes slag be entered by inlet also can be suppressed.
Therefore, can consider that top brick hole (hole) of room on sample tap makes purge gas (purge gas) directly flow to the scheme in inlet direction from retainer, make the purge gas such as nitrogen (purge gas) enter in the inlet of sample tap swimmingly in a large number.But now, go up on the other hand, be equivalent to provide the path on the top flowing to room on sample tap to the molten steel entered by inlet and cause the major equipment such as retainer and compensating wire be connected on probe be installed in sublance system can not to be protected this problem.
In addition, when running existing sublance system, decline sublance makes probe be immersed in measuring point completely just to stop continuing to sink, when molten steel sample flows into the sample tap inlet being installed on probe, also can not enter (blowing) purge gas to prevent the savings of tar by blow off.But in this case, although the savings of tar can be reduced to a certain extent, hinder because of the applying pressure of purge gas also and flow into sample molten steel by inlet, cause the sampling of molten steel to become the problems such as difficulty.
Summary of the invention
The problem that invention will solve
The present invention proposes in order to the problem solving prior art as above, its object is to, there is provided a kind of following sublance system and the method taking sample: as converter and refining furnace (AOD), when taking molten steel sample with the sample tap be installed on auxiliary lance probe because slag under sampling property rugged environment, the purge gas (purge gas) such as the nitrogen used for preventing inner the gathering of tar (tar) of retainer apply pressure to the inlet of sample tap, thus prevent slag from flowing in molten steel sample.
In addition, the object of the invention is to, provide a kind of method taking high-quality sample, it uses above-mentioned probe and can improve sampling success ratio and inhibit the inflow of slag.
Solve the method for problem
For realizing object as above, sublance system of the present invention, it is characterized in that, described sublance system comprises: possess the probe of the sensor for measuring furnace interior temperature etc., for described probe is installed and possess enable the gap of purge gas between outside arm and retainer flow into the maintenance frame aperture of sample tap inside retainer, for supporting described retainer and carry out the sublance that moves up and down in described stove
Possess tap at the inside arm of described probe, this tap enables the purge gas flowed into from the gap between outside arm and inner arm flow into sample tap inside,
The hole, upper room that the purge gas of inflow is passed through is possessed in the upper room of described sample tap.
In addition, it is characterized in that, on described sample tap upper end, room lateral surface on contact be provided with hardware, on this hardware than on hole, room be formed with the component hole that purge gas is passed through more compactly, described hole, upper room and a described component hole part overlap thus realizes ventilate.
In addition, it is characterized in that, on described sample tap upper end, room lateral surface on contact be provided with hardware, this hardware is formed and enables purge gas by directly not through with hole, upper room component hole, arrange in interlaced mode described on can ventilate between hole, room and component hole.
In addition, it is characterized in that, between sample tap and connector, form more than one described tap.
In addition, it is characterized in that, on described sample tap, upper end, room lateral surface is formed with end difference, to have the contact site and noncontact portion that contact with described hardware simultaneously.
In addition, it is characterized in that, the described hardware being formed with component hole more compactly than hole, upper room is mesh net or punching net.
In addition, the method taking high-quality sample of the present invention, it is characterized in that, comprise: decline the probe be installed on sublance, till locating through slag layer arrival molten steel, the purge gas of sublance inside is blown into the step of probe sample tap, carry out sampling and between test period described locating, interrupt being blown into the step of described purge gas, and rise to from completing described sampling and mensuration till sublance moves on to outside sublance, be again blown into the step of described purge gas.In addition, described probe is the wherein one in multiple probe as above.
Invention effect
According to the present invention, compared with prior art can take the molten steel sample that slag doping is less, and sampling success ratio can be significantly improved.
In addition, according to the present invention, the consumables expense of the time and labour cost and the probe discarded because sampling failure etc. spent because sampling failure can being reduced, therefore having the economic effect reduced costs.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of an example for illustration of the sublance system according to prior art.
Fig. 2 of the present inventionly will be used for the partial cutaway schematic view of the example taking the probe of high-quality sample and retainer to combine.
Fig. 3 a illustrates the part isometric schematic diagram taking the top of the upper room of the probe of high-quality sample example of the present invention.
Fig. 3 b is along the diagrammatic cross-section of A-A line in above-mentioned Fig. 3 a and the schematic diagram of hardware disposed thereon.
Fig. 3 c is the cross-sectional perspective view of upper room of the example taking high-quality sample to pop one's head in of the present invention and the schematic diagram of the hardware in portion disposed thereon.
Fig. 4 is the cross section stereo schematic diagram of sample tap of the present invention.
Fig. 5 be for illustration of of the present invention in order to take high-quality sample that sublance evolution occurs time the figure of purge gas blowing method.
Fig. 6 is with existing probe and the analysis face of the taken separately sample of probe of the present invention and the contrast photo of top section.
Fig. 7 is through the photo of the molten steel degree of hardware inflow and the degradation of connector being formed with 2mm hole.
Description of reference numerals
10: sample tap 11: upper hole, room 12: upper room
13: inlet 14: filtrator 15: inject lid
20: hardware 21: component hole 30: inner arm
31: tap 40: outside arm 41: connector
50: retainer 51: keep frame aperture.
Specific embodiments
Below, with reference to accompanying drawing, embodiment of the present invention is described in detail.
First, concise and to the point purport of the present invention is as follows, possesses sublance system of the present invention, in refining furnace (AOD) that slag amount (slag volume) is more etc., also can control being mixed into of slag when the early stage perforate of the lid (cap) of slag layer, take high-quality sample by the inflow of the molten steel flooding stop position.For this reason, be blown into the purge gas (purge gas) such as the nitrogen of (blowing) sublance inside until dipping stops, thus suppress the inflow of slag, being blown into (blowing) that interrupt purge gas when flooding and stopping makes the inflow of sample molten steel more smooth and easy, thus with the part that the mode of high-quality sample can be taked to change the blowing method (sequence) of purge gas.
In addition, in order to the inside making the purge gas such as nitrogen (purge gas) easily flow into sample tap 10, on retainer 50, processing keeps frame aperture 51, and inner in order to make purge gas flow into sample tap 10 from the gap between outside arm 40 and inner arm 30 swimmingly, inner arm 30 also processes tap 31.Further, on sample tap 10, the top of room 12 is formed as follows: in formation, hole, room 11 is to make the easy flowing of purge gas, and when molten steel is flowed into by the inlet 13 of sample tap 10, can discharge nitrogen (N
2) and dissolved gas, and the molten steel entering upper room by hole, upper room 11 is cooled thus is located at the equipment of sublance in protecting.
Fig. 2 of the present inventionly will be used for the partial cutaway schematic view of the example taking the probe of high-quality sample and retainer to combine.Fig. 3 a illustrates the part isometric schematic diagram taking the top of the upper room of the probe of high-quality sample example of the present invention.Fig. 3 b is the schematic diagram of diagrammatic cross-section along the A-A line of above-mentioned Fig. 3 a and hardware disposed thereon.Fig. 3 c is the cross-sectional perspective view of upper room of the example taking high-quality sample to pop one's head in of the present invention and the schematic diagram of the hardware in portion disposed thereon.Fig. 4 is the cross section stereo schematic diagram of sample tap of the present invention.
As shown in Figure 2, in sublance system of the present invention, probe is arranged on retainer 50, and this probe possesses the sensor 120 of the temperature measuring motlten metal at furnace interior etc., and described retainer 50 comprises this retainer 50 of support and the sublance moved up and down in described stove.One in the feature that sublance system of the present invention is held is exactly, and in order to make purge gas circulate glibly, in position also possesses three holes unlike the prior art.
First, described retainer 50 has and keeps frame aperture 51, it is inner that this maintenance frame aperture 51 makes the purge gas such as nitrogen flow into sample tap 10 more swimmingly, the inside arm 30 of described probe has tap 31, and it is inner that this tap 31 makes the purge gas such as the nitrogen flowed into from the gap between outside arm 40 and inner arm 30 flow into sample tap 10 swimmingly.As required, more than one multiple described tap 31 can be formed between sample tap 10 and connector 41.The upper room 12 of described sample tap 10 possesses hole, upper room 11, and on this, hole, room 11 makes the purge gas of inflow circulating more glibly up and down in upper room.
Fig. 3 a is the example taking the probe of high-quality sample of the present invention, and in expression, top, room is formed with four upper holes, room 11.In above-mentioned situation, if strengthened in hole, upper room 11 and arrange multiple, although the aeration of purge gas can improve, but on the other hand, if the molten steel immersed by the inlet 13 of sample tap 10 enters retainer 50 side by hole, room 11 on this, then cause occurrence temperature deviation by the thermalization of connector and bring out contact unstable, along with the shortening in retainer serviceable life, the major equipment being installed on the sublances such as the compensating circuit on retainer also may sustain damage.Therefore, although the superstructure of sample tap 10 will make purge gas easily flow, sample molten steel be suppressed to the outflow in retainer direction.
As mentioned above, only replace when the major equipment of sublance inside sustains damage and pop one's head in the sublance system that will reuse, likely cause connecting sublance itself and can not recycle and the massive losses that must change.
Therefore, in the present invention, as shown in Figure 3 b, on described sample tap 10, the upper end of room 12 forms hole, room 11 purge gas is ventilated glibly, and the top in hole, room 11 is arranged on the hardware 20 as shown in Fig. 3 b upper diagram or Fig. 3 c upper diagram again on this.Preferably this hardware 20 is the plate (plate) of the metal material that can cool molten steel, mesh net or punching net.
As shown in Figure 3 a, there is upper grooves on outside the upper end of the upper room 12 of described sample tap 10, upper grooves is used for, when being connected of upper room 12 and the hardware 20 be located thereon, making the solidification of molten steel at this place of inflow.That is, on described sample tap 10 room 12 upper end lateral surface on, be formed with end difference in the mode simultaneously with the contact site directly contacted with described hardware 20 and the noncontact portion that there is gap slightly.
Hardware 20 being formed and arranging compacter component hole 21 than hole, upper room 11, is that a kind of purge gas flows back and forth between hole, upper room 11 and component hole 21, the structure of more fully ventilating.The plate (plate) that the position consistent with hole, upper room 11 is processed with the metal material in the hole (hole) of same size can be used in.But in this case, be difficult to the adverse current of isolated sample molten steel to retainer direction, and existing will to hole, upper room 11 and the size of component hole 21 and the trouble of position and inconvenience, therefore, the manufacturing cost of plate (plate) and the Production Time of sample tap can be increased.Isolated sample molten steel flow into above retainer side in, although can certain effect be obtained with the metallic filter 14 (filter) of sample tap 10, be difficult to realize fully isolated near these.
Therefore, as shown in Figure 3 c, described hardware 20 preferably adopts the metal material with compact interstitial structure, and the product of this structure can use mesh net or punching net etc.There is not directivity when upper room hole 11 matching operation with sample tap 10 in these products, therefore independently can carry out assembly working with the size in hole, upper room 11 and position.If the top (direction with retainer is called top) in hole, room 11 configures described hardware 20 on described, then form multiple component hole 21 due to compact on this hardware 20, therefore made hole, room 11 and component hole 21 partly overlap thus realize ventilation mutually.
In addition, as shown in the upper diagram of Fig. 3 b, described hardware 20 can be used in the metal plates (plate) that central portion is formed with component hole 21.The structure formed in this case is, the component hole 21 of described hardware 20 and the hole, upper room 11 of described sample tap 10 directly not through.At this, with regard to hole, described upper room 11 and component hole 21 quantity, as long as hole, upper room 11 and component hole 21 are directly not through mutually, arrange multiple also harmless respectively.
As mentioned above, hole, room 11 and the interlaced structure of component hole 21 in formation, the top, upper room of sample tap 10 is formed with step trough, not only can improve the aeration of purge gas thus, sample molten steel can also be completely cut off and flowed into top (direction with retainer is called top) direction by the inlet of sample tap.
The inflow degree on the molten steel top changed in order to component hole 21 size grasped according to the hardware 20 being formed in Fig. 3 c, a hardware 20 is processed the hole of 1mm, another hardware 20 is processed the hole of 2mm, thus the inflow degree of molten steel is compared.
Comparing result, it is very small that the molten steel through being formed with the hardware 20 in 1mm hole flows into degree, but when the hardware 20 being formed with 2mm hole, seriously make the scaling loss of connector deterioration and retainer also serious because molten steel flows into degree.Fig. 7 is the photo of the degree of molten steel and the degradation of connector illustrating that the hardware 20 through being formed with 2mm hole flows into.Therefore, can confirm that the size of the component hole 21 formed on hardware 20 preferably takes about about 1mm.
By adopting structure as above, the structure possessing the sublance system for taking the probe of high-quality sample of the present invention is as follows: can make purge gas through hole, upper room 11 and component hole 21 freely to top and lower flow, especially can make to suppress purge gas is directly blown into (blowing) sample tap 10 inlet 13 side from retainer 50 side.In addition; the present invention has following structure: on the compact component hole 21 that the molten steel sample flowed into through inlet 13 hangs over the hardware 20 being configured at top, hole 11, described upper room or possess with on the hardware 20 of the component hole 21 of the interlaced formation in hole, upper room 11; can not continue to top flowing, and solidify in end difference in-between etc. thus can protect the equipment of retainer 50 upper lateral part.
On the other hand, in the prior art, flowing into the purge gas (purge gas) such as nitrogen during sublance runs to measure to sublance inside, needing to be blown into all the time (blowing).Its object is to, when sublance impregnated in high-temperature molten steel, reducing the temperature of compensating wire of sublance inside, preventing by popping one's head in the inner high temperature cigarette (fume) that produces and tar (tar) is deposited on the nut portions (female) in retainer (holder).
But, as prior art, if be blown into (blowing) this nitrogen purge gas (N when sublance immerses always
2purge gas), then can increase the pressure that probe is inner, therefore sometimes need also likely to play when the inflow smoothness of sample molten steel and suppress to flow into smooth effect.
Therefore, in order to reduce the inner pressure of probe if desired, in probe rearward end processing maintenance frame aperture 51 (holder hole) as shown in Figure 2.In addition, measuring point (measuringposition) is arrived at sublance, when actual molten steel sample flows into and immerses stopping, cutting off being blown into and making the inflow of molten steel more smooth of purge gas (purgegas), thus significantly improve the inflow of molten steel sample.
Below, the raising method of the inflow of the molten steel sample that the present invention adopts is described in detail.
In the decarburization and reduction phase of the probe measuring point of converter or refining furnace (AOD etc.), slag amount (slag volum) is many, flows into oxygen (O from the air port (tuyere) of stove lower end
2) and nitrogen (N
2) or argon gas (A
r) and the flowing of molten steel is serious.Therefore, cannot correctly chamber furnaced slag blanket and molten steel layer, also make slag and molten steel again mix (mixing) situation.
Therefore, in the decarburization that slag amount is more and reduction phase, the problem being mixed into slag in the sample is often deposited.This slag is mixed into problem and the porcelain filter 14 (ceramic filter) being arranged on indoor invented can be used to filter out a part, but the slag amount be mixed into along with the perforate period of injection lid 15 is different, is therefore difficult to control being mixed into of slag completely.
The inflow of slag is also relevant with the material injecting lid 15.The injection lid 15 that existing probe uses is made up of the steel lid of steel (steel) material and the lid of paper (paper) matter at sample tap heat-resistant adhesive mixture (cement).Make paper using lid be in order to until do not allow steel (steel) lid expose by slag layer, to reach the object of corset, use the object of steel lid to be the inflow delaying molten steel.But due to the amount of slag and the change of composition, temperature etc., in the sublance stop timing that there is peace and quiet molten steel, molten steel is always difficult to flow into.
For addressing this is that, the purge gas changed is utilized to be blown into order (purge gassequence), before stopping sublance immersing, being controlled the inflow of slag by the pressure of the purge gas such as nitrogen, and when stopping immersing, just can improve the inflow of sample.Even if inject lid 15 opening in early days, if the pressure that there is the purge gas such as the nitrogen larger than slag static pressure in sample tap 10 just can control the inflow of slag.
Fig. 5 is the chart for illustration of an example in order to high-quality sampling of the present invention according to the purge gas blowing method of sublance change in location.
With reference to the chart of Fig. 5, X-axis represents the time, and Y-axis represents the height change of sublance.The figure of middle body represents the change in location along with time process.
First, control top speed from the position of the 1950cm of converter and refining furnace etc., sublance declines to solution surface with the speed of 120m per minute.If described sublance arrives the position (the A point in chart) of 1172cm, then start to be blown into (blowing) purge gas, sublance starts to enter into motlten metal slag layer.
If sublance arrives molten steel (steel) layer (the B point in chart), then start to control bottom speed, while the decline rate of sublance is decreased to 10m per minute, arrive the measuring point (measuring position) (the C point in figure) of molten steel bottom.
Sublance carrying out taking between sample and test period, cuts off being blown into of the purge gas of carrying out from sublance top lower portion after arriving measuring point.As mentioned above, when stopping immersing, cut off being blown into (purge gas blowing) of purge gas, due to the maintenance frame aperture 51 of probe rearward end (top) and the gap between retainer 50 and probe, reduce the pressure of probe rearward end, and due to the difference between the internal pressure of sample tap 10 after reducing like this and the molten steel static pressure of inflow, molten steel flows into property and can significantly improve.That is, as mentioned above, cutting off being blown into of purge gas (purge gas) to take sample to stop sublance immersing period, the inflow of molten steel is improved by consequent Venturi tube (venturi) effect.Therefore, although the submerged position of sublance is lower, contrasts with the structure of prior art, also can significantly improve sampling.
After completing sampling and mensuration (the D point in figure), restart being blown into of purge gas, sublance can move to top.
The example of the work of the sampling steel that following table 1 represents being blown into order (purge gassequence) of purge gas such as change nitrogen and carries out.
< shows the embodiment that 1> change nitrogen purge gas is blown into
Note: described "ON" represents the state being blown into purge gas in sublance, "Off" represents the state cut off and be blown into
Known from above-mentioned experiment, if what adopt sample tap 10 of the present invention and cut off the purge gas (purge gas) such as nitrogen when the dipping of sublance stops being blown into (blowing), then reduce sample and do not get full phenomenon, and significantly increase the weight of molten steel sample.This demonstrate that purge gas not only can suppress being mixed into of slag but also suppress this of the inflow of sample molten steel true.In addition, the fact that the purge gas such as nitrogen (purge gas) can become the factor suppressing slag to be mixed into also is confirmed.
Fig. 6 is with the probe of prior art and the analysis face of the taken separately sample of probe of the present invention and the contrast photo in cross section, top.As shown in Figure 6, in the environment of operation that slag amount (Slag volume) is more, the sample taked by the probe of prior art is all mixed with slag on sample analysis face thus the situation can not carrying out analyzing is more.But what use probe of the present invention not only can control slag is mixed into the quality that can also significantly improve sample.As shown in Figure 6, the sample taked by probe of the present invention not only on analysis face even the section on sample top be also difficult to find the slag be mixed into.
Claims (8)
1. a sublance system, it is characterized in that, described sublance system comprises: possess the probe of the sensor of the temperature of the motlten metal for measuring furnace interior, for described probe is installed and possess enable the gap of purge gas between outside arm and retainer flow into the maintenance frame aperture of sample tap inside retainer, for supporting described retainer and carry out the sublance that moves up and down in described stove
Possess tap at the inside arm of described probe, this tap enables the purge gas flowed into from the gap between outside arm and inner arm flow into sample tap inside,
The hole, upper room that the purge gas of inflow is passed through is possessed in the upper room of described sample tap.
2. sublance system according to claim 1, it is characterized in that, on described sample tap upper end, room lateral surface on contact be provided with hardware, this hardware is formed with than hole, room on described the component hole that purge gas is passed through more compactly, and described hole, upper room and a described component hole part overlap thus realize ventilation.
3. sublance system according to claim 1, it is characterized in that, on described sample tap upper end, room lateral surface on contact be provided with hardware, this hardware is formed and enables purge gas by directly not through with hole, described upper room component hole, arrange in interlaced mode described on can ventilate between hole, room and described component hole.
4. sublance system according to claim 1, is characterized in that, forms more than one described tap between described sample tap and connector.
5. the sublance system according to Claims 2 or 3, is characterized in that, on described sample tap, upper end, room lateral surface is formed with end difference, to have the contact site and noncontact portion that contact with described hardware simultaneously.
6. sublance system according to claim 2, is characterized in that, described hardware is mesh net or punching net.
7. use the sublance system described in claim 1 to take a method for sample, it is characterized in that, comprising:
Decline described probe, till locating through slag layer arrival molten steel, the purge gas of described sublance inside is blown into the step of described sample tap,
Carry out sampling and between test period, interrupting the step being blown into described purge gas described locating, and
From completing described sampling and mensuration and rising to till described sublance moves on to outside making described sublance, be again blown into the step of described purge gas.
8. the method taking sample according to claim 7, is characterized in that, described sublance system is the sublance system described in any one of claim 2-6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110064389A KR101277761B1 (en) | 2011-06-30 | 2011-06-30 | A sublance apparatus having a probe enabling to get good molten metal sample and the sampling method with the sublance apparatus |
| KR10-2011-0064389 | 2011-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102854035A CN102854035A (en) | 2013-01-02 |
| CN102854035B true CN102854035B (en) | 2015-09-16 |
Family
ID=47400815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210193222.0A Active CN102854035B (en) | 2011-06-30 | 2012-06-12 | Sublance system and the method taking sample |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101277761B1 (en) |
| CN (1) | CN102854035B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101533656B1 (en) * | 2013-12-30 | 2015-07-03 | 우진 일렉트로나이트(주) | Connector unit and probe apparatus including the connector unit |
| CN105716903A (en) * | 2014-12-17 | 2016-06-29 | 韩国机械研究院 | Molten metal sampling device and molten metal sampling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1476340A1 (en) * | 1987-08-27 | 1989-04-30 | Институт черной металлургии | Apparatus for sampling and measuring temperature of liquid metal |
| JP2540410B2 (en) * | 1992-03-26 | 1996-10-02 | 川惣電機工業株式会社 | Molten metal sampling device |
| KR20030092355A (en) * | 2002-05-29 | 2003-12-06 | 주식회사 포스코 | Probe binder for sub lance of converter |
| CN1749729A (en) * | 2005-08-01 | 2006-03-22 | 陈涛 | Sublance composite probe for stainless steel smelting furnace |
| CN2819207Y (en) * | 2005-09-08 | 2006-09-20 | 陈涛 | Small composite multifunctional probe of molten liquid iron water |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200158865Y1 (en) * | 1995-12-28 | 1999-10-15 | 이구택 | Sub-sleeve type probe of sub-lance |
| JPH1088221A (en) * | 1996-09-06 | 1998-04-07 | Nkk Corp | Probe for observing inner part of metallurgical furnace and method for observing inner part of metallurgical furnace |
| KR20090104154A (en) * | 2008-03-31 | 2009-10-06 | 우진 일렉트로나이트(주) | Twin sampler for the use of molten stainless steel in order to quantitative analysis of expensive metals |
| JP5302778B2 (en) * | 2009-05-29 | 2013-10-02 | 株式会社堀場製作所 | Exhaust gas analyzer and probe unit |
-
2011
- 2011-06-30 KR KR1020110064389A patent/KR101277761B1/en active IP Right Grant
-
2012
- 2012-06-12 CN CN201210193222.0A patent/CN102854035B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1476340A1 (en) * | 1987-08-27 | 1989-04-30 | Институт черной металлургии | Apparatus for sampling and measuring temperature of liquid metal |
| JP2540410B2 (en) * | 1992-03-26 | 1996-10-02 | 川惣電機工業株式会社 | Molten metal sampling device |
| KR20030092355A (en) * | 2002-05-29 | 2003-12-06 | 주식회사 포스코 | Probe binder for sub lance of converter |
| CN1749729A (en) * | 2005-08-01 | 2006-03-22 | 陈涛 | Sublance composite probe for stainless steel smelting furnace |
| CN2819207Y (en) * | 2005-09-08 | 2006-09-20 | 陈涛 | Small composite multifunctional probe of molten liquid iron water |
Non-Patent Citations (2)
| Title |
|---|
| 《副枪技术在转炉生产中的应用》;代江龙;《天津冶金》;20060630(第3期);第9页 * |
| 祖奇,孟伟,朱树停.《转炉副枪控制***在莱钢的应用》.《莱钢科技》.《莱钢科技》编辑部,2009,(第1期),第67-69页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102854035A (en) | 2013-01-02 |
| KR20130003221A (en) | 2013-01-09 |
| KR101277761B1 (en) | 2013-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018202195B2 (en) | Ultrasonic Probes With Gas Outlets For Degassing Of Molten Metals | |
| KR101324899B1 (en) | Facility used for both continuous hot-dip coating and continuous annealing | |
| US20090269239A1 (en) | Process for Production of Aluminum Ingots, Aluminum Ingots, and Protective Gas for the Production of Aluminum Ingots | |
| CN102854035B (en) | Sublance system and the method taking sample | |
| WO2017090819A1 (en) | Nozzle, casting device, and casting method | |
| JP6575355B2 (en) | Continuous casting machine | |
| EP1952913B1 (en) | Method for manufacture of ultra-low carbon steel slab | |
| JP4681399B2 (en) | Steel continuous casting method | |
| JP2006193402A (en) | Apparatus and method for manufacturing plate glass | |
| CN111940715B (en) | Anti-blocking submerged nozzle | |
| JP5712574B2 (en) | Continuous casting method of high cleanliness steel | |
| KR20140129895A (en) | Tundish for continuous casting | |
| JP5768773B2 (en) | Continuous casting method using immersion nozzle | |
| JP6841386B2 (en) | How to start continuous steel casting | |
| KR20180061972A (en) | Molten material processing apparatus | |
| EP3533534A1 (en) | Structure for casting, and casting method using same | |
| JP2010189260A (en) | Apparatus for manufacturing float glass | |
| JP2019155396A (en) | Slab casting device and slab casting method | |
| JP2024014995A (en) | Method for continuously casting steel | |
| JP2014012292A (en) | Immersion nozzle | |
| KR101379167B1 (en) | Submerged entry nozzle and method of continuous casting using the same | |
| JP2011194420A (en) | Method of producing high cleanliness steel | |
| JP4932985B2 (en) | Steel continuous casting method | |
| CN110982991A (en) | Equipment for controlling defects of slag channel and air hole on surface of round billet | |
| CN115467012B (en) | Single crystal silicon crystal growing apparatus and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |