CN212443241U - Steel ladle drainage sand adding device - Google Patents
Steel ladle drainage sand adding device Download PDFInfo
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- CN212443241U CN212443241U CN202021867903.7U CN202021867903U CN212443241U CN 212443241 U CN212443241 U CN 212443241U CN 202021867903 U CN202021867903 U CN 202021867903U CN 212443241 U CN212443241 U CN 212443241U
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- ladle
- hole
- guide pipe
- adding device
- sand adding
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Abstract
A ladle drainage sand adding device is arranged in a ladle upper nozzle and an upper sliding plate; it includes: the body is a tube body with a closed head and an open tail; at least one row of through holes are formed in the upper part of the body along the height direction of the body, each row is provided with at least two through holes, and the through holes are uniformly distributed along the circumference; the length of the body is greater than the sum of the depth of the steel ladle water feeding port and the depth of the inner hole of the upper sliding plate, and the through hole is exposed out of the upper port of the steel ladle water feeding port; the through hole of the body is provided with a sealing material which can seal the through hole and is easy to melt; the guide pipe is arranged in the body and close to the through hole, the upper end surface of the guide pipe is flush with or higher than the through hole, the lower end surface of the guide pipe is lower than the through hole, the lower end surface of the guide pipe is circumferentially provided with an annular fixing plate, and the outer side end of the annular fixing plate is hermetically connected with the inner wall of the body; the cover body is movably arranged at the opening end of the tail part of the body and can seal the opening of the tail part of the body. The utility model discloses reduced the drainage sand and polluted to the molten steel, had ladle drainage sand ration, automatic characteristics such as the casting rate is high, be fit for the automatic joining of machine.
Description
Technical Field
The utility model relates to a steelmaking technical field, in particular to device is added to ladle drainage sand.
Background
Before the molten steel is poured into the ladle, the residual steel and the residual slag in the ladle are required to be removed, a channel formed by the upper nozzle and the sliding plate is cleaned and checked, after necessary functional refractory materials such as the lower nozzle, the sliding plate and the like are replaced, the sliding plate is closed, and the upper nozzle is filled with the drainage sand, so that the channel is kept from being immersed by the molten steel after tapping, when the lower sliding plate is opened, the lower drainage sand is lost, the upper drainage sand is crushed and collapsed under the action of hydrostatic pressure of the molten steel, the molten steel flows out from the channel formed by the nozzle and the sliding plate, and the effect of automatic casting (automatic drainage) of the ladle is achieved.
At present, drainage sand is added into a steel mill, the material is generally manually fed from the upper part of a steel ladle, and as shown in figure 1, the drainage sand bag 70 is fed from the 4-5 m height above the steel ladle 50 in a bag form; or the drainage sand is added in a chute mode, the operation environment is at high temperature, and the drainage sand is easy to overflow from the packaging bag or the chute, so that the environmental pollution is caused.
The device such as manual feeding or elephant trunk is adopted for adding, the following problems exist:
1. the operation environment has high temperature, large dust, severe environment and large amount of manual labor.
2. After the sand drainage agent is added, excessive drainage sand is often added to form an ideal convex oblate cone.
3. The chromium ore has high melting point, is difficult to melt after being added, and causes heavy metal pollution along with the waste of steel slag.
4. The addition of the chute needs a set of mechanical device, so that the investment is large.
5. It is difficult to automate the work using machine equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device is added to ladle drainage sand simplifies the ladle and prepares operation flow, reduces the drainage sand and pollutes the molten steel, improves the automatic drainage success rate of ladle, prevents to open and waters the steel of vomiting, has ladle drainage sand ration, automatic casting rate height, be fit for characteristics such as the automatic joining of machine.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a ladle drainage sand adding device is arranged in a ladle upper nozzle and an upper sliding plate; it includes:
the body is a tube body with a closed head and an open tail; at least one row of through holes are formed in the upper part of the body along the height direction of the body, each row is provided with at least two through holes, and the through holes are uniformly distributed along the circumference; the length of the body is greater than the sum of the depth of the upper nozzle of the steel ladle and the depth of the inner hole of the upper sliding plate, and the through hole is exposed out of the upper port of the upper nozzle of the steel ladle; a sealing material which can seal the through hole and is fusible is arranged at the through hole of the body;
the guide pipe is arranged in the body and close to the through hole, the upper end surface of the guide pipe is flush with or higher than the through hole, the lower end surface of the guide pipe is lower than the through hole, the lower end surface of the guide pipe is circumferentially provided with an annular fixing plate, and the outer side end of the annular fixing plate is hermetically connected with the inner wall of the body;
the cover body is movably arranged at the opening end of the tail part of the body and can seal the opening end of the tail part of the body.
Preferably, the body through holes are arranged in 1-6 rows along the height direction of the body, and each row has 2-10 through holes which are uniformly distributed along the circumference.
Preferably, the height of the through hole of the body is 5-500 mm greater than the depth of the water feeding port of the ladle.
Preferably, the upper end face of the conduit is 0-300mm higher than the through hole of the body.
Preferably, the outer diameter of the conduit is 2-30 mm smaller than the inner diameter of the body.
Preferably, the diameter of the body is 3-30 mm smaller than that of the ladle upper nozzle.
Preferably, the material of the body and the conduit is steel, refractory material or cement.
Preferably, the annular fixing plates on the body and the guide pipe are connected into an integral structure by welding, bonding or pressing, or are integrally formed by a mould.
Preferably, the sealing material is a cotton ball, paper, plastic film or metal film with a melting point lower than 700 ℃.
Before use, the tail of the body is required to be upward, the cover body is opened, the drainage sand is added into the body by the funnel, and then the body is closed by the cover body. The body through-hole is sealed with sealing material, can prevent that trace drainage sand from flowing out, prevents the polluted environment.
The device inserts the outer tube head tenesmus behind the ladle nozzle of feeding, and the afterbody perk, drainage sand can not follow the outer tube through-hole and flow, and after the ladle nozzle of feeding repetitious usage, because melting loss causes the diameter to enlarge, the device head tenesmus angle increases, and the downward 15 degrees drainage sand of head only flows in a trace amount, need under some operating mode with ladle downward sloping 45 degrees, this device head downward sloping promptly surpasss 45 degrees, and the drainage sand only runs off in a trace amount, and after the ladle crouch repair finishes, it is vertical to hang up the ladle from the position of crouching by the driving, and the ladle has the vibration this moment, and the drainage sand in this device only flows in a trace.
Compared with the prior art, the utility model has the advantages of:
1. the drainage sand is pre-loaded in the utility model discloses in, the volume of adding is certain, stops the manual operation difference.
2. The utility model discloses during the use, join from ladle bottom slide, not join from ladle upper portion, keep away from high temperature, dust, environment friendly, operating security is good.
3. The utility model discloses insert ladle bottom and slide after, even the head tenesmus angle reaches 45 degrees, or the driving is hung up in the horizontal position, produces the vibration, or insert the back time and exceed 5 minutes, the drainage sand can not flow or only the trace flows.
4. Filled with drainage sand, the utility model is inverted in a grid rack, and is suitable for long-distance transportation or long-time storage.
5. The method is suitable for the working conditions that the drainage sand cannot be added or is difficult to add from the upper part, such as steel ladle capping, horizontal ladle repair and the like.
6. Is suitable for automatic installation by adopting a machine.
Drawings
FIG. 1 is a schematic diagram of the addition of a conventional diversion sand used in steel mills;
fig. 2 is a structural sectional view of an embodiment of the present invention;
fig. 3 is a schematic view of a usage status of the embodiment of the present invention;
fig. 4 and 5 are schematic diagrams of the device of the invention inserted into the bottom of a ladle and a sliding plate closed;
FIG. 6 is a schematic diagram showing the stacking effect of the outflow of drainage sand after the ladle is erected;
FIG. 7 is a schematic diagram of the structure of a sintering layer formed by the drainage sand in the device of the present invention under high temperature;
fig. 8 is a schematic diagram of the state that the prior sand drainage pipe is inserted into the water feeding port of the steel ladle.
Detailed Description
Referring to fig. 2 and 3, the ladle filler sand adding device of the present invention is disposed in the ladle upper nozzle 10 and the upper slide plate 20; it includes:
the body 1 is a pipe body with a closed head and an open tail; at least one row of through holes are formed in the upper part of the body 1 along the height direction of the body, each row is provided with at least two through holes 11, and the through holes are uniformly distributed along the circumference; the length of the body 1 is greater than the sum of the depth of the ladle upper nozzle 10 and the depth of the inner hole of the upper sliding plate 20, and the through hole 11 is exposed out of the upper port of the ladle upper nozzle 10; a sealing material 2 which can seal the through hole 11 and is fusible is arranged at the through hole 11 of the body 1;
the guide pipe 3 is arranged in the body 1 and close to the through hole 11, the upper end surface of the guide pipe 3 is flush with the through hole 11 or higher than the through hole 11, the lower end surface of the guide pipe 3 is lower than the through hole 11, the lower end surface of the guide pipe 3 is circumferentially provided with an annular fixing plate 4, and the outer side end of the annular fixing plate 4 is hermetically connected with the inner wall of the body 1;
and the cover body 5 is movably arranged at the tail opening end of the body 1 and can seal the tail opening of the body 1.
Preferably, 1 ~ 6 rows of body 1 through-hole 11 along the body direction of height establish, 2 ~ 10 through-holes in every row, and along circumference evenly distributed.
Preferably, the height of the through hole 11 of the body 1 is 5-500 mm greater than the depth of the ladle upper nozzle 10.
Preferably, the upper end face of the conduit is 0-300mm higher than the through hole of the body.
Preferably, the outer diameter of the conduit is 2-30 mm smaller than the inner diameter of the body.
Preferably, the diameter of the body is 3-30 mm smaller than that of the ladle upper nozzle.
Preferably, the material of the body and the conduit is steel, refractory material or cement.
Preferably, the annular fixing plates on the body and the guide pipe are connected into an integral structure by welding, bonding or pressing, or are integrally formed by a mould.
Preferably, the sealing material is a cotton ball, paper, plastic film or metal film with a melting point lower than 700 ℃.
When the tail of the body is upward, because the sealing structure is arranged between the guide pipe and the body, the drainage sand above the through hole can not flow out of the through hole, and the drainage sand below the through hole can not flow from bottom to top in an interlayer between the body and the guide pipe, so that the through hole can not flow out.
When the body is horizontally placed, the fusible sealing material is arranged at the through hole, so that the drainage sand can be prevented from flowing out in a micro-scale manner.
Referring to fig. 4 and 5, when in use, the ladle 50 is horizontally laid, the head of the body 1 of the utility model is inserted into the ladle drain 40 and the lower slide plate 30, and the tail of the body 1 is pushed by a steel pipe until the tail of the body 1 enters the upper drain 20 and the lower slide plate 30 is closed.
The ladle 50 is vertical, the body 1 is vertical, and the body 1 is inclined due to a gap between the body 1 and the ladle upper nozzle 10 and cannot keep a vertical state. The drainage sand 100 flows out of the body 1 to form a stacked shape of a convex oblate cone, as shown in fig. 6.
When the molten steel is poured into the ladle 50, the drainage sand 100 is melted down to a concave state, and a sintered layer 60 is formed 10-80mm below the interface contacting the molten steel, as shown in fig. 7.
Referring to fig. 8, without the existing sand drainage tube 200 in the device, when the dropping angle of the tube head reaches 11-45 degrees, the drainage sand 100 in the tube is largely lost and cannot play a proper role.
The above is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (9)
1. A ladle drainage sand adding device is arranged in a ladle upper nozzle and an upper sliding plate; it is characterized by comprising:
the body is a tube body with a closed head and an open tail; at least one row of through holes are formed in the upper part of the body along the height direction of the body, each row is provided with at least two through holes, and the through holes are uniformly distributed along the circumference; the length of the body is greater than the sum of the depth of the upper nozzle of the steel ladle and the depth of the inner hole of the upper sliding plate, and the through hole is exposed out of the upper port of the upper nozzle of the steel ladle; a sealing material which can seal the through hole and is fusible is arranged at the through hole of the body;
the guide pipe is arranged in the body and close to the through hole, the upper end surface of the guide pipe is flush with or higher than the through hole, the lower end surface of the guide pipe is lower than the through hole, the lower end surface of the guide pipe is circumferentially provided with an annular fixing plate, and the outer side end of the annular fixing plate is hermetically connected with the inner wall of the body;
the cover body is movably arranged at the opening end of the tail part of the body and can seal the opening end of the tail part of the body.
2. The ladle filler sand adding device as defined in claim 1, wherein: the body through-holes are arranged in 1-6 rows along the height direction of the body, and each row is provided with 2-10 through-holes which are uniformly distributed along the circumference.
3. The ladle filler sand adding device as defined in claim 1, wherein: the height of the through hole of the body is 5-500 mm greater than the depth of the water feeding port of the ladle.
4. The ladle filler sand adding device as defined in claim 1, wherein: the upper end surface of the conduit is 0-300mm higher than the through hole of the body.
5. The ladle drain sand adding device according to claim 1, wherein the outer diameter of the guide pipe is 2-30 mm smaller than the inner diameter of the body.
6. The ladle filler sand adding device as defined in claim 1, wherein: the diameter of the body is 3-30 mm smaller than that of the ladle upper nozzle.
7. The ladle filler sand adding device as defined in claim 1, wherein: the body and the conduit are made of steel, refractory materials or cement.
8. The ladle filler sand adding device as defined in claim 1, wherein: the annular fixing plates on the body and the guide pipe are connected into an integral structure by welding, bonding or pressing, or are integrally formed by a mould.
9. The ladle filler sand adding device as defined in claim 1, wherein: the sealing material is a cotton ball, paper, a plastic film or a metal film with the melting point lower than 700 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867903.7U CN212443241U (en) | 2020-09-01 | 2020-09-01 | Steel ladle drainage sand adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867903.7U CN212443241U (en) | 2020-09-01 | 2020-09-01 | Steel ladle drainage sand adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212443241U true CN212443241U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021867903.7U Active CN212443241U (en) | 2020-09-01 | 2020-09-01 | Steel ladle drainage sand adding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247876A (en) * | 2021-12-14 | 2022-03-29 | 吉林金钢钢铁股份有限公司 | Ladle stuffing sand adding device and method |
-
2020
- 2020-09-01 CN CN202021867903.7U patent/CN212443241U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247876A (en) * | 2021-12-14 | 2022-03-29 | 吉林金钢钢铁股份有限公司 | Ladle stuffing sand adding device and method |
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