KR20170060269A - Apparatus for detecting thickness of slag layer and method for manufacturing the same - Google Patents

Apparatus for detecting thickness of slag layer and method for manufacturing the same Download PDF

Info

Publication number
KR20170060269A
KR20170060269A KR1020150164450A KR20150164450A KR20170060269A KR 20170060269 A KR20170060269 A KR 20170060269A KR 1020150164450 A KR1020150164450 A KR 1020150164450A KR 20150164450 A KR20150164450 A KR 20150164450A KR 20170060269 A KR20170060269 A KR 20170060269A
Authority
KR
South Korea
Prior art keywords
slag
reaction
molten steel
wire
reacting
Prior art date
Application number
KR1020150164450A
Other languages
Korean (ko)
Inventor
최형근
이중범
지형빈
Original Assignee
현대제철 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020150164450A priority Critical patent/KR20170060269A/en
Publication of KR20170060269A publication Critical patent/KR20170060269A/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/001—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the slag appearance in a molten metal stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

Disclosed is an apparatus for measuring a slag thickness and a method of manufacturing the same. A slag thickness measuring apparatus and a method of manufacturing the same of the present invention are characterized by comprising: a slag reaction part including a material to be reacted with slag and immersed in slag; a molten steel material And a grip portion formed to protrude out of the slag reaction portion and held by an operator or a mechanism.

Description

TECHNICAL FIELD [0001] The present invention relates to a slag thickness measurement apparatus and a slag thickness measurement apparatus,

The present invention relates to a slag thickness measurement apparatus and a method of manufacturing the slag thickness measurement apparatus, and more particularly, to a slag thickness measurement apparatus for measuring a slag thickness and a manufacturing method thereof.

The molten steel is finally injected into the mold and solidified through various types of reaction vessels or transfer vessels such as a converter, ladle, or tundish in a steelmaking process. Inevitably produced slag in this process not only deteriorates the cleanliness of the molten steel but also causes a decrease in the rate of realization of aluminum and ferroalloys.

And the hazardous substances contained in the slag layer, P, S, Al 2 O 3 Etc. can be incorporated into the molten steel. To prevent this, a method of putting quicklime into the ladle at the time of turning the ladle is widely adopted. At this time, in order to optimize the amount of input, it is necessary to know the exact amount of generated slag, and the thickness of the ladle slag is measured for this purpose.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2015-0021790 (titled "Slag Thickness Measuring Apparatus and Thickness Measuring Method", published on Mar. 03, 2013).

According to an embodiment of the present invention, there is provided a slag thickness measuring device and a method of manufacturing the slag thickness measuring device capable of improving the reliability of slag thickness measurement.

An apparatus for measuring slag thickness according to the present invention comprises: a slag reaction part including a material to be reacted with slag and immersed in slag; A molten steel reacting portion coupled to the periphery of the slag reaction portion and including a material to be molten; And a grip portion formed to project out of the slag reaction portion and held by an operator or a mechanism.

The molten steel reacting section has a melting point of not lower than 1450 DEG C and lower than 1550 DEG C, and the handle section has a melting point higher than a melting point of the molten steel .

The slag reaction unit may include a reaction main body having a columnar shape; A plurality of wire coupling parts arranged around the reaction body part so as to be spaced apart from each other and to which the molten steel reaction part is coupled; And a handle coupling portion formed at a central portion of the reaction body portion and extending along the longitudinal direction of the reaction body portion, the handle engagement portion being coupled to the handle portion.

The molten steel reacting portion may include a first wire disposed in parallel with an extending direction of the slag reaction portion; And a second wire spaced apart from the first wire such that the slag reaction part is exposed between the first wire and the second wire.

Also, the molten steel reacting section may be arranged such that six or more pieces including the first wire and the second wire are spaced apart at regular intervals within a range in which the slag reaction part is exposed between the first wire and the second wire .

According to another aspect of the present invention, there is provided a method of manufacturing a slag thickness measuring apparatus, comprising: preparing a mold having a molding space; Disposing a molten metal reacting portion along the inner surface of the molding space; Disposing a metallic material handle at a center of the molding space; And injecting a ceramic raw material into the molding space, and molding and sintering the slag reaction part in a state of being coupled with the molten steel reacting part and the handle part.

The forming space unit may include a molding body part formed in a hollow cylindrical shape and into which the ceramic raw material of the slag reaction part is inputted; A circumferential support portion formed to be recessed around the molding body portion and fitted with the molten steel reaction portion; And a center support portion formed at an upper portion or a lower portion of the molding body portion and vertically supporting the handle portion.

The molten steel reacting section has a melting point higher than or equal to 1450 DEG C and less than 1550 DEG C, the handle section has a melting point higher than that of molten steel, the slag reaction section is eroded by chemical reaction with the slag, It is preferable that the refractory is made of a refractory material.

According to the slag thickness measuring device and the manufacturing method thereof according to the present invention, the boundary between the slag and the molten steel can be more clearly derived by joining the molten steel reacting portion that reacts with the molten steel around the entire length, around the slag reaction portion reacting with the slag have. Accordingly, the reliability of the slag thickness measurement can be further improved by significantly reducing the error of the slag thickness measurement.

1 is a perspective view schematically showing an apparatus for measuring slag thickness according to an embodiment of the present invention.
2 is a front view schematically showing an apparatus for measuring slag thickness according to an embodiment of the present invention.
3 is a plan view schematically showing an apparatus for measuring slag thickness according to an embodiment of the present invention.
FIG. 4 is a state diagram illustrating a state in which a slag thickness measuring apparatus according to an embodiment of the present invention is immersed in slag.
FIG. 5 is a state diagram showing a state where a slag reaction part of a slag thickness measuring device according to an embodiment of the present invention is eroded by reaction with slag, and a molten steel reaction part is melted by molten steel.
FIG. 6 is a conceptual diagram illustrating a process of deriving slag thickness using the slag thickness measuring apparatus shown in FIG. 5. FIG.
7 is a perspective view schematically showing a mold for manufacturing a slag thickness measuring apparatus according to an embodiment of the present invention.
8 is a conceptual diagram illustrating a process for manufacturing a slag thickness measuring device according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a slag thickness measuring apparatus and a method of manufacturing the same according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically showing an apparatus for measuring slag thickness according to an embodiment of the present invention, FIG. 2 is a front view schematically showing an apparatus for measuring slag thickness according to an embodiment of the present invention, 1 is a plan view schematically showing an apparatus for measuring a slag thickness according to an embodiment of the present invention.

FIG. 4 is a view illustrating a state where a slag thickness measuring apparatus according to an embodiment of the present invention is immersed in a slag, FIG. 5 is a view showing a state where the slag reaction unit of the slag thickness measuring apparatus according to an embodiment of the present invention reacts with slag FIG. 6 is a conceptual diagram illustrating the process of deriving the thickness of slag using the slag thickness measuring apparatus shown in FIG. 5. FIG. 6 is a view showing a state where the molten steel is eroded by the molten steel and is melted by molten steel.

FIG. 7 is a perspective view schematically showing a mold for manufacturing a slag thickness measuring apparatus according to an embodiment of the present invention, FIG. 8 is a view illustrating a process for manufacturing a slag thickness measuring apparatus according to an embodiment of the present invention Fig.

1 to 3, an apparatus for measuring slag thickness 1 according to an embodiment of the present invention includes a slag reaction unit 10, a molten steel reacting unit 20, and a handle 30.

The slag reaction part 10 has a rod shape and includes a material reacted with the slag 4 in a molten state. Here, the reaction means that the chemical change is caused to be visually distinguishable by contact with the slag 4 in a molten state. More specifically, since the slag 4 generally contains CaO, Al 2 O 3 and SiO 2 components, the slag reaction part 10 is eroded by a chemical reaction with CaO, Al 2 O 3 , and SiO 2 components It is preferable to have a composition and a composition that can be used.

The slag reaction part 10 is not limited to a particular component or composition including well-known technologies as long as erosion can be caused by a chemical reaction with the slag 4 as described above. For example, the slag reaction unit 10 may include ceramics selectively containing CaO, Al 2 O 3 , and SiO 2 , and more specifically, CaO 6 wt%, Al 2 O 3 47 wt%, SiO 2 And 47% by weight of a ceramics.

The molten steel reacting portion 20 has a wire shape extending along the longitudinal direction of the slag reaction portion 10 and is coupled to the periphery of the slag reaction portion 10. [ The molten steel reacting section 20 includes a material which reacts with the molten steel 3 without reacting with the slag 4. For example, the molten steel reacting section 20 may include a metal material having a melting point lower than that of the molten steel 3.

Generally, the molten steel 3 is heated to a temperature of not lower than 1600 占 폚 and the temperature of the slag 4 does not exceed 1400 占 폚 so that the molten steel reacting section 20 has a melting point within a temperature range of not lower than 1450 占 폚 and lower than 1550 占 폚 It is preferable to include a metal material. As a more specific example, the molten steel reacting section 20 may be a high carbon steel having a composition of 0.5% by weight of C and a melting point of 1500 캜.

The grip portion 30 is a portion held by an operator or a mechanism. The grip portion 30 has a shape of a bar shape that is slender and longer than the slag reaction portion 10, and one side portion thereof is formed so as to protrude to the outside of the slag reaction portion 10. The grip portion 30 includes a metal material having a melting point higher than that of the molten steel 3 and having a tensile and impact strength higher than that of the ceramics so as to stably maintain the rigidity in the high temperature atmosphere close to the slag 4 and the molten steel 3 .

Referring to FIG. 3, the slag reaction unit 10 according to an embodiment of the present invention includes a reaction body unit 11, a wire coupling unit 12, and a handle coupling unit 13.

The reaction main body 11 has a rod-like shape and a circular shape with a circular cross-section. The reaction main body portion 11 has a length enough to pass through the slag 4 in an inclined inclined state as shown in Fig.

The wire connecting portion 12 is a portion to which the molten steel reacting portion 20 is joined, and a plurality of the wire connecting portion 12 are arranged around the reaction main body 11. The wire connecting portion 12 has a shape of a groove portion into which a part of a cross section of the molten steel reacting portion 20 having a wire shape can be inserted and joined. Each of the wire engagement portions 12 is formed to extend along the longitudinal direction from the upper end portion to the lower end portion of the reaction main body portion 11. [

The wire connecting portion 12 is formed so as to be recessed to a depth at which more than half of the circular cross section of the molten steel reacting portion 20 can be introduced and a portion of the welding angle responsive portion 20 is stable And is formed to a depth that can be exposed. More specifically, the wire connecting portion 12 is formed to have a depth larger than the radius of the molten steel reacting portion 20 and smaller than the diameter.

 The handle engagement portion 13 is a portion to which the handle 30 is coupled and is formed to extend along the longitudinal direction of the reaction body portion 11 at the central portion of the reaction body portion 11. [ The handle engagement portion 13 is formed hollow in a columnar shape corresponding to the handle engagement portion 13 so that the handle 30 having a shape of a bar shape that is thinner and longer than the reaction body portion 11 can be fitted.

1 to 3, the molten steel reacting part 20 according to an embodiment of the present invention is disposed such that a plurality of the molten steel reacting part 20 including the first wire 21 and the second wire 22 are spaced apart from each other.

The first wire 21 has a wire shape and is disposed in parallel with the extending direction of the slag reaction part 10 around the slag reaction part 10. The second wire 22 has the same wire shape as the first wire 21 and is disposed so as to be spaced apart from the first wire 21. As the first wire 21 and the second wire 22 are disposed apart from each other, the slag reaction part 10 is exposed between the first wire 21 and the first wire 21.

The molten steel reacting section 20 includes the first wire 21 and the second wire 22 having a wire shape and thus the molten steel reacting section 20 is formed in a range in which the slag reaction section 10 is exposed between the plurality of molten steel reacting sections 20 At least six are spaced at regular intervals. At this time, the maximum number of the molten steel reacting sections 20 is limited to a range in which the slag reacting sections 10 are exposed between the plurality of molten steel reacting sections 20. As a more specific example, six molten steel reacting portions 20 may be disposed at a relative angle of 60 ° with respect to the center of the slag reaction portion 10.

When a plurality of molten steel reacting sections 20 are arranged around the circumference of the slag reaction section 10 having a columnar shape, the slag thickness measuring apparatus 1 according to the present invention can be seen from the front as shown in FIG. 2 At least four of them are arranged side by side. 5, the straight line l 1 continuously passing through the lower end portions of the plurality of molten steel reacting sections 20 is easily visually observed with the naked eye while the molten steel reacting section 20 is melted in the molten steel 3 .

The slag reaction part 10 according to an embodiment of the present invention includes ceramics. In general, ceramics have excellent fire resistance such that they can withstand a high temperature of 1000 ° C or higher. That is, the slag reaction part 10 includes a refractory capable of withstanding the molten steel 3. 4, the intermediate portion of the slag 4 passes vertically through the slag 4, and the lower portion of the slag 4 passes through the slag 4, .

The slag thickness measuring device 1 according to the present invention is mounted vertically and vertically in the vertical space of the ladle 2 by using lifting equipment such as a crane, Direction. The slag thickness measuring device 1 according to the present invention is provided with the grip portion 30 held by an operator or a tool and holding the grip portion 30 directly by the operator outside the edge portion of the ladle 2. [ And is immersed in the slag 4 as described above.

At this time, the slag thickness measuring apparatus 1 according to the present invention is inclined as shown in FIG. The portion of the molten steel reacting section 20 which has passed through the slag 4 and is immersed in the molten steel 3 in a state in which the slag thickness measuring apparatus 1 is immersed in such a manner as to be sloped is formed in the molten steel 3 It melts and the upper part maintains its original shape. The portion of the slag reaction part 10 immersed in the slag 4 is eroded by the reaction with the molten slag 4.

When the slag thickness measuring apparatus 1 according to the present invention is maintained for a preset time and then taken out of the ladle 2 so that the reaction as described above occurs, the slag 4 and the molten steel 3) the boundary (l 1), slag (4) and the boundary portion (2 l of air) of is revealed clearly. The straight line (l 1) that passes through in succession a lower end of the molten steel reaction section 20, and the boundary portion (l 1) of the slag 4 and the molten steel (3), of the erosion occurs, part of the slag reaction section 10 the straight line (l 2) connecting the upper end is the slag 4 and the boundary portion (l 2) of the air.

The thickness of the slag (4) is that the vertical distance (b) between slag 4 and the molten steel (3) the boundary (l 1), slag (4) and the boundary air (l 2) of the. Angle of inclination of the relative angle between the extending direction of the slag reaction unit 10 for horizontal line (l 1) that passes through in succession a lower end of the molten steel reaction unit 20, the slag reaction section 10 also (θ), i.e. the slag reaction unit (10). As compared with the extending direction of the slag 4 and the molten steel (3) the boundary (l 1), slag (4) and when the interface portion (l 2) of the air measurement, derivation, slag reaction section 10 of the slag as described above The inclination [theta] of the reaction part 10 can be derived accurately.

Slag 4 and the boundary between the molten steel (3) (l 1), slag (4) and by measuring the boundary part (l 2) of the air, drawn, and slag for direction parallel to the extension direction of the slag reaction section 10 It is also possible to easily measure and derive the slope distance a between the boundary portion 11 between the slag 4 and the molten steel 3 and the boundary portion 12 between the slag 4 and the air. Substituting this into sin? = B / a, the thickness b of the slag 4 can be easily derived.

According to the present invention, by providing the molten steel reacting portion 20, the boundary portion 11 between the slag 4 and the molten steel 3 can be more clearly derived as compared with the case where the molten steel reacting portion 20 is not formed So that the error of the thickness measurement of the slag 4 can be remarkably reduced. Since the thickness of the slag 4 is generally about 10 cm or so, an error of about 1 to 2 cm will cause a large error to the entire depth of the slag 4. According to the molten steel reacting section 20, this error can be reduced by half or more, that is, to 1 cm or less, and the reliability of the slag thickness measurement can be more stably secured.

The slag thickness measuring apparatus 1 according to an embodiment of the present invention having the above-described structure includes a step of preparing a forming mold 5 having a molding space 6, A step of disposing the metallic material molten steel reacting portion 20 along a portion of the molding space 6 in which the metallic material grip portion 30 is disposed at the center of the molding space portion 6, The slag reaction unit 10, the molten steel reacting unit 20, and the grip unit 30 may be integrally joined to each other through the molding, sintering, and the like.

At this time, the forming space portion 6 of the forming die 5 includes the forming main body portion 7, the peripheral supporting portion 8, and the center support portion 9 as shown in Fig.

The forming main body 7 is formed hollow inside the forming mold 5 in a cylindrical shape corresponding to the slag reaction part 10.

The peripheral supporting portion 8 is a portion for supporting the molten steel reacting portion 20 in a fixed position and is formed to be recessed in the shape corresponding to the outer surface portion of the molten steel reacting portion 20 around the inner surface portion of the forming main body portion 7 . At this time, the peripheral supporting portion 8 is formed to have a shallower depth than half of the circular cross section of the molten steel reacting portion 20, since it is sufficient to provide a stable contact surface with the molten steel reacting portion 20. [

The center support portion 9 is a portion for vertically supporting the grip portion 30 and is formed at the upper portion or the lower portion of the molding main portion 7. [ The center support portion 9 according to the embodiment of the present invention is formed to protrude upwards in a circular shape corresponding to the periphery of the handle 30. [ Accordingly, when the lower portion of the handle 30 is inserted into the center support portion 9, the handle 30 is supported by the center support portion 9 and held upright.

The center support 9 according to the embodiment of the present invention has a circular protruding shape corresponding to the periphery of the handle 30, but the center support 9 according to the present invention is not limited thereto . The central support portion 9 according to the present invention is not limited to a specific structure and shape as long as the pull portion 30 can be vertically supported.

As another example, the center support portion 9 may be formed so as to pass through the center portion of the cover covering the inside of the molded body portion 7 in the vertical direction. When the cover 30 is engaged with the upper portion of the forming main body 7 and the grip 30 is put on the central portion of the forming main body 7, .

8, the molten steel reacting portion 20 and the grip portion 30 are sequentially disposed on the peripheral support portion 8 and the central support portion 9, respectively, and the molded body portion 7 The slag reaction part 10, the molten steel reacting part 20 and the grip part 30 are integrally joined to each other by the sintering of the ceramic raw material constituting the slag reaction part 10, The slag thickness measuring device according to the present invention can be easily and firmly manufactured.

According to the method for manufacturing the slag thickness measuring apparatus 1, a plurality of molten steel reacting sections 20 are connected to the periphery of the slag reaction section 10 and a handle 30 is provided at the center of the slag reaction section 10 The joining force between the slag reaction part 10, the molten steel reaction part 20, and the grip part 30 can be ensured to be equal to or higher than the set strength without using a separate joining member or joining means have.

According to the apparatus for measuring slag thickness and the method of manufacturing the slag according to the present invention, the molten steel reacting section 20 reacting with the molten steel 3 around the slag reaction section 10 reacting with the slag 4, The boundary portion 11 between the slag 4 and the molten steel 3 can be more clearly derived. Accordingly, the reliability of the measurement of the thickness of the slag 4 can be further improved by significantly reducing the error in the measurement of the slag 4 thickness.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

1: slag thickness measuring device 2: ladle
3: molten steel 4: slag
5: Molding frame 6: Molding space part
7: forming main body part 8: peripheral supporting part
9: center support part 10: slag reaction part
11: reaction body part 12: wire bonding part
13: handle coupling part 20: molten steel reaction part
21: first wire 22: second wire
30: Handle portion

Claims (8)

A slag reaction part comprising a material to be reacted with the slag and immersed in the slag;
A molten steel reacting portion coupled to the periphery of the slag reaction portion and including a material to be molten; And
And a grip portion formed to protrude out of the slag reaction portion and held by an operator or a mechanism.
The method according to claim 1,
Wherein the slag reaction part comprises a refractory material which is eroded by a chemical reaction with the slag,
Wherein the molten steel reacting portion has a melting point of not lower than 1450 DEG C and less than 1550 DEG C,
Wherein the grip portion has a melting point higher than that of the molten steel.
The method according to claim 1,
The slag-
A reaction body portion having a columnar shape;
A plurality of wire coupling parts arranged around the reaction body part so as to be spaced apart from each other and to which the molten steel reaction part is coupled; And
And a handle coupling portion formed to extend along a longitudinal direction of the reaction body portion at a central portion of the reaction body portion and to which the handle portion is coupled.
The method according to claim 1,
The molten-
A first wire disposed parallel to the extending direction of the slag reaction part; And
And a second wire disposed so as to be spaced apart from the first wire such that the slag reaction part is exposed between the first wire and the first wire.
5. The method of claim 4,
Wherein the molten steel reacting portion is disposed such that six or more pieces including the first wire and the second wire are spaced apart from each other at regular intervals within a range in which the slag reaction portion is exposed between the first wire and the second wire And a slag thickness measuring device for measuring the slag thickness.
Preparing a mold having a molding space;
Disposing a molten metal reacting portion along the inner surface of the molding space;
Disposing a metallic material handle at a center of the molding space; And
And injecting a ceramic material into the molding space to mold and sinter the slag reaction part in a state of being coupled with the molten steel reacting part and the handle part.
The method according to claim 6,
The molding space section
A molding body portion hollowly formed in a cylindrical shape and into which the ceramic raw material of the slag reaction portion is inputted;
A circumferential support portion formed to be recessed around the molding body portion and fitted with the molten steel reaction portion; And
And a center support portion formed on an upper portion or a lower portion of the molding body portion and vertically supporting the handle portion.
8. The method according to claim 6 or 7,
Wherein the molten steel reacting portion has a melting point of from 1450 DEG C to less than 1550 DEG C,
Wherein the handle has a melting point higher than that of the molten steel,
Wherein the slag reaction part is made of a refractory material which is eroded by a chemical reaction with the slag and is not melted in molten steel.
KR1020150164450A 2015-11-24 2015-11-24 Apparatus for detecting thickness of slag layer and method for manufacturing the same KR20170060269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150164450A KR20170060269A (en) 2015-11-24 2015-11-24 Apparatus for detecting thickness of slag layer and method for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150164450A KR20170060269A (en) 2015-11-24 2015-11-24 Apparatus for detecting thickness of slag layer and method for manufacturing the same

Publications (1)

Publication Number Publication Date
KR20170060269A true KR20170060269A (en) 2017-06-01

Family

ID=59221958

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150164450A KR20170060269A (en) 2015-11-24 2015-11-24 Apparatus for detecting thickness of slag layer and method for manufacturing the same

Country Status (1)

Country Link
KR (1) KR20170060269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113084102A (en) * 2021-04-15 2021-07-09 重庆大学 Crystallizer protection slag liquid slag layer thickness testing device and method based on wettability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113084102A (en) * 2021-04-15 2021-07-09 重庆大学 Crystallizer protection slag liquid slag layer thickness testing device and method based on wettability

Similar Documents

Publication Publication Date Title
US10151669B2 (en) Sampler and sampling method for molten material
KR102038204B1 (en) Direct analysis sampler
JP5247894B2 (en) Temperature measuring device
TW201249562A (en) Container for molten metal, use of the container and method for determining an interface layer
KR20170060269A (en) Apparatus for detecting thickness of slag layer and method for manufacturing the same
US9174277B2 (en) Ladle shroud for liquid metal casting installation
KR101520957B1 (en) Ladle for carrying molten metal
KR101235945B1 (en) Apparatus for measuring the thickness of Slag
KR101277649B1 (en) Sampler for molten metal and slag
JP5261332B2 (en) melting furnace
KR101891160B1 (en) A sealing gasket for collector nozzle
KR101634006B1 (en) Injection apparatus for ingot
KR100591711B1 (en) Thermocouple sheath for molten metal temperature measurement
KR200245046Y1 (en) Sub lance combinations probe for converter
KR20150035019A (en) Device for measuring temperature molten metal
KR101531045B1 (en) Ladle
JP2013094817A (en) Graphite nozzle for continuous casting and method for manufacturing the same
KR101623215B1 (en) Structure for connecting tundish and ladle
KR101480882B1 (en) Holder of entry nozzle for easy non-oxidizing molding
KR101366296B1 (en) Constructing method For fireproof material
CN214443042U (en) Non-drainage pouring device for ladle launching
KR101515194B1 (en) Light weight ladle for carrying molten metal
AU2015200292B2 (en) Sampler and sampling method
CN203887177U (en) Anti-eccentricity device applied to drying of tundish continuous temperature measurement protective casing
KR101531044B1 (en) Light weight ladle

Legal Events

Date Code Title Description
E601 Decision to refuse application