CN211645296U - Blast furnace swing chute - Google Patents
Blast furnace swing chute Download PDFInfo
- Publication number
- CN211645296U CN211645296U CN201921832125.5U CN201921832125U CN211645296U CN 211645296 U CN211645296 U CN 211645296U CN 201921832125 U CN201921832125 U CN 201921832125U CN 211645296 U CN211645296 U CN 211645296U
- Authority
- CN
- China
- Prior art keywords
- chute
- cover
- blast furnace
- spout
- side wall
- 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
Images
Abstract
The utility model belongs to the technical field of the blast furnace, a blast furnace swing chute is disclosed, include: the chute body and the chute mouth are reinforced by the top cover; the chute mouth reinforcing top cover is fixedly buckled on the chute mouth of the chute body; wherein, the spout reinforcing top cap includes: a cover body; the outer edge of the cover body is provided with an extension part from the cover top to the cover bottom, and the extension part protrudes out of the cover bottom surface of the cover body; the cover bottom of the cover body and the extending part are respectively abutted against the top surface of the side wall and the outer side surface of the side wall of the spout. The utility model provides a blast furnace swing chute can restrain the fracture risk of swift current mouth under strenuous thermal stress effect.
Description
Technical Field
The utility model relates to the technical field of blast furnaces, in particular to a blast furnace swing chute.
Background
The swing chute is an important device of a blast furnace stokehole tapping device system and is used for continuously transferring molten iron produced by a blast furnace from a iron runner to different ladles. The swing chute has violent temperature change when the working state and the non-working state are alternated, so that the chute can generate larger stress effect; particularly, the hot stress changes borne by the sliding mouths at the two ends of the swing chute are particularly concentrated and remarkable, so that the sliding mouths at the two ends are easy to crack, molten iron is easy to flow out along the cracking positions, and further the falling accidents of the molten iron are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blast furnace swing chute solves the technical problem that the swift current mouth department of blast furnace swing chute is easy to crack because of the thermal stress effect among the prior art.
In order to solve the technical problem, the utility model provides a blast furnace swing chute, include: the chute body and the chute mouth are reinforced by the top cover;
the chute mouth reinforcing top cover is fixedly buckled on the chute mouth of the chute body;
wherein, the spout reinforcing top cap includes: a cover body;
the outer edge of the cover body is provided with an extension part from the cover top to the cover bottom, and the extension part protrudes out of the cover bottom surface of the cover body;
the cover bottom of the cover body and the extending part are respectively abutted against the top surface of the side wall and the outer side surface of the side wall of the spout.
Further, the cover body is a semicircular arc-shaped plate;
two side walls of the semicircular arc-shaped plate respectively abut against the top surfaces of two side walls of the chute;
the extension portion is arranged along the outer top surface tangential direction of the semicircular arc-shaped plate, and the arrangement direction of the extension portion is perpendicular to the side wall of the semicircular arc-shaped plate.
Furthermore, the inner bottom surface of the semicircular arc-shaped plate is smoothly connected with the inner side surface of the side wall of the sliding nozzle.
Further, the side wall and the extension part of the semicircular arc-shaped plate are welded on the side wall of the spout.
Furthermore, a first high-temperature-resistant substrate layer is arranged on the bottom of the chute and the inner wall of the chute.
Further, the first high-temperature-resistant substrate layer extends to the inner bottom surface of the semicircular arc-shaped plate from the groove bottom of the spout.
Further, a second high temperature resistant substrate layer is arranged on the first high temperature resistant substrate layer;
the second high-temperature-resistant substrate layer is arranged on the groove bottom of the sliding nozzle.
Further, the second refractory substrate layer comprises: a plurality of independent substrate blocks;
the independent substrate blocks are uniformly distributed on the bottom of the slide nozzle.
Further, the number of the substrate blocks is two;
the two substrate blocks are symmetrically arranged on the bottom of the slide nozzle relative to the center line of the bottom of the slide nozzle, and a gap is reserved between the two substrates.
Further, the chute body has two spouts.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the blast furnace swinging chute provided by the embodiment of the application, the chute mouth reinforcing top cover is fastened and fixed on the chute mouth of the chute body, and the chute mouth structure is reinforced from the upper part of the chute mouth, so that when the chute mouth is under the action of a severe thermal stress effect, the outward deformation of the chute mouth can be limited from the upper part, and the deformation and cracking of the chute mouth are greatly inhibited; particularly, because the swift current mouth is in the region of thermal stress concentration, in order to guarantee to consolidate the reliability, be provided with the extension from the caping towards the caping end at the outside border of the lid of top cap, just the caping end of lid with the extension supports respectively and leans on the lateral wall top surface and the lateral wall lateral surface of swift current mouth, from structural, restricts the outer deformation that expands of swift current mouth, has realized stable fracture suppression effect on the whole.
Drawings
Fig. 1 is a schematic structural view of a blast furnace swing chute provided in an embodiment of the present invention;
fig. 2 is a schematic view of a structure of a spout provided by an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a blast furnace swing chute, and solves the technical problem that a spout of the blast furnace swing chute in the prior art is prone to cracking due to a thermal stress effect.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1 and 2, a blast furnace swing chute comprises: the chute comprises a chute body 1 and a chute mouth reinforcing top cover 2; namely, the spout reinforcing top cover 2 is added on the structure of the prior conventional chute body 1.
Generally speaking, the existing chute body 1 is ship-shaped, the middle area is in contact with molten steel impact, and the molten steel is guided to two sides and then flows out from a chute mouth.
The spout reinforcing top cover 2 is fixedly buckled on the spout 11 of the spout body 1; thereby, thermal stress deformation cracking is inhibited from the upper part of the spout; the structure of the top cover 2 is reinforced by the integrated spout 11 and spout while avoiding the groove bottom area with concentrated stress, so that when severe thermal stress effect is generated, the spout reinforced top cover 2 shares and absorbs partial stress, and the cracking risk of the spout 11 is reduced.
Wherein the spout reinforcing top cover 2 comprises: a cover body; the outer edge of the cover body is provided with an extension part 21 from a cover top 23 to a cover bottom 22, and the extension part 21 protrudes out of the cover bottom surface of the cover body; the cover bottom 22 and the extension part 21 of the cover body respectively abut against the top surface and the outer side surface 13 of the side wall of the spout 11; thereby forming an external inserting type clamping structure from the structure and limiting the transverse external expansion; the spout reinforcing top cover 2 can be further fixed on the spout 11 through fasteners such as welding, bolts and the like, so that the reinforcing effect is further enhanced.
Due to the intensity of the thermal stress effect, the cover body is a semicircular arc-shaped plate, so that an elastic damping structure can be formed in the outward expansion direction of the sliding nozzle 11, and the expansion energy is absorbed through the elastic deformation of the semicircular arc-shaped plate to inhibit deformation cracking.
The chute mouth reinforcing top cover 2 is arranged into a semicircular arc-shaped plate, so that the side surface of the chute mouth reinforcing top cover 2 becomes a downward end surface, the cover top 23 of the chute mouth reinforcing top cover 2 becomes an outer arc surface, the cover bottom 22 becomes an inner arc surface, and two side walls of the semicircular arc-shaped plate respectively abut against the top surfaces of two side walls of the chute mouth 11; the width of the side wall of the semicircular arc plate, namely the plate thickness, is generally consistent with the thickness of the side wall of the spout 1 through welding or bolt fastening, so that the semicircular arc plate can be completely covered on the top surface of the side wall of the spout 11, the maximum fixing area is obtained, and a better fixing effect is kept.
The extension part 21 is tangentially arranged along the outer top surface of the semicircular arc-shaped plate, and the arrangement direction of the extension part 21 is perpendicular to the side wall of the semicircular arc-shaped plate, so that the extension part can be smoothly clamped on the sliding nozzle 11.
Furthermore, the inner bottom surface of the semicircular arc-shaped plate is smoothly connected with the inner side surface of the side wall of the spout 11, and the side wall and the extending part of the semicircular arc-shaped plate are welded on the side wall of the spout 11; therefore, an inner side integrated structure can be formed, and the continuity of stress transmission is ensured.
In this embodiment, the first high temperature resistant substrate layer is disposed on the bottom and the inner wall of the chute 11, so as to improve the heat resistance of the chute 11.
Further, the first high-temperature-resistant substrate layer extends to the inner bottom surface of the semicircular arc-shaped plate from the groove bottom of the spout. Thereby guarantee the heat resistance of joint portion, guarantee to link up fixed reliability.
The first high-temperature-resistant substrate layer is also provided with a second high-temperature-resistant substrate layer; the second high-temperature-resistant substrate layer is arranged at the bottom of the chute mouth, so that the heat resistance of the bottom of the chute is further improved.
Further, the second refractory substrate layer comprises: a plurality of independent substrate blocks; the independent substrate blocks are uniformly distributed on the bottom of the slide nozzle, so that heat concentration is avoided.
Specifically, the number of the substrate blocks is two; the two substrate blocks are symmetrically arranged on the bottom of the slide nozzle relative to the center line of the bottom of the slide nozzle, and a gap is reserved between the two substrates.
In this embodiment, the number of the spout of the chute body is two.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the blast furnace swinging chute provided by the embodiment of the application, the chute mouth reinforcing top cover is fastened and fixed on the chute mouth of the chute body, and the chute mouth structure is reinforced from the upper part of the chute mouth, so that when the chute mouth is under the action of a severe thermal stress effect, the outward deformation of the chute mouth can be limited from the upper part, and the deformation and cracking of the chute mouth are greatly inhibited; particularly, because the swift current mouth is in the region of thermal stress concentration, in order to guarantee to consolidate the reliability, be provided with the extension from the caping towards the caping end at the outside border of the lid of top cap, just the caping end of lid with the extension supports respectively and leans on the lateral wall top surface and the lateral wall lateral surface of swift current mouth, from structural, restricts the outer deformation that expands of swift current mouth, has realized stable fracture suppression effect on the whole.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A blast furnace swing chute, comprising: the chute body and the chute mouth are reinforced by the top cover;
the chute mouth reinforcing top cover is fixedly buckled on the chute mouth of the chute body;
wherein, the spout reinforcing top cap includes: a cover body;
the outer edge of the cover body is provided with an extension part from the cover top to the cover bottom, and the extension part protrudes out of the cover bottom surface of the cover body;
the cover bottom of the cover body and the extending part are respectively abutted against the top surface of the side wall and the outer side surface of the side wall of the spout.
2. The blast furnace swing chute of claim 1, wherein said cover is a semi-circular arc;
two side walls of the semicircular arc-shaped plate respectively abut against the top surfaces of two side walls of the chute;
the extension portion is arranged along the outer top surface tangential direction of the semicircular arc-shaped plate, and the arrangement direction of the extension portion is perpendicular to the side wall of the semicircular arc-shaped plate.
3. The blast furnace swing chute of claim 2, wherein: the inner bottom surface of the semicircular arc-shaped plate is smoothly connected with the inner side surface of the side wall of the spout.
4. The blast furnace swing chute of claim 3, wherein: the side wall and the extending part of the semicircular arc-shaped plate are welded on the side wall of the spout.
5. The blast furnace swing chute of claim 4, wherein: and a first high-temperature-resistant lining bottom layer is arranged on the bottom of the chute and the inner wall of the chute.
6. The blast furnace swing chute of claim 5, wherein: the first high-temperature-resistant substrate layer extends to the inner bottom surface of the semicircular arc-shaped plate from the groove bottom of the sliding nozzle.
7. The blast furnace swing chute of claim 6, wherein: the first high-temperature-resistant substrate layer is also provided with a second high-temperature-resistant substrate layer;
the second high-temperature-resistant substrate layer is arranged on the groove bottom of the sliding nozzle.
8. The blast furnace swing chute of claim 7, wherein said second refractory substrate layer comprises: a plurality of independent substrate blocks;
the independent substrate blocks are uniformly distributed on the bottom of the slide nozzle.
9. The blast furnace swing chute of claim 8, wherein: the number of the substrate blocks is two;
the two substrate blocks are symmetrically arranged on the bottom of the slide nozzle relative to the center line of the bottom of the slide nozzle, and a gap is reserved between the two substrates.
10. The blast furnace swing chute of claim 9, wherein: the chute body has two spouts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832125.5U CN211645296U (en) | 2019-10-29 | 2019-10-29 | Blast furnace swing chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832125.5U CN211645296U (en) | 2019-10-29 | 2019-10-29 | Blast furnace swing chute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211645296U true CN211645296U (en) | 2020-10-09 |
Family
ID=72691174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921832125.5U Active CN211645296U (en) | 2019-10-29 | 2019-10-29 | Blast furnace swing chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211645296U (en) |
-
2019
- 2019-10-29 CN CN201921832125.5U patent/CN211645296U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202519275U (en) | Combined cooling wall | |
| CN109280728A (en) | A kind of blast furnace cooling stave structure | |
| JP2012224914A (en) | Stave | |
| CN211645296U (en) | Blast furnace swing chute | |
| CN209598184U (en) | A kind of tundish integral current stabilizer | |
| CN206794743U (en) | M type slag blocking walls for continuous casting production | |
| CN2801795Y (en) | Long life water cooling fire hole | |
| CN103476520A (en) | Closure plate, and a sliding closure on the spout of a container containing molten metal | |
| CN205660151U (en) | Grasp of clearance ladle package mouthful long -pending sediment | |
| CN208701102U (en) | A kind of branch iron runner of resistance to erosion | |
| CN209081918U (en) | A kind of blast furnace cooling stave structure | |
| JP3188181U (en) | Cooling element | |
| CN211897016U (en) | Blast furnace bottom structure | |
| CN218270261U (en) | Guiding device suitable for metallurgical furnace melt discharge | |
| CN203495207U (en) | Slag blocking wall of tundish for square billet continuous casting | |
| KR101229273B1 (en) | Cooling plate of a blast furnace having excellent thermal conductivity and high-abrasion resistance, and method for manufacturing the same | |
| CN212451486U (en) | Water-cooled wall structure of smelting reduction furnace | |
| CN205766739U (en) | A kind of throttle-type main trough of blast furnace pours mould | |
| CN108754055A (en) | A kind of band convex copper cooling wall and its manufacturing method | |
| CN212070376U (en) | Long nozzle with reinforced slag line part | |
| CN201381329Y (en) | Blast furnace copper cooling stave | |
| CN217709549U (en) | High-strength protection bag for preventing iron notch erosion of submerged arc furnace | |
| CN214881629U (en) | Tolerant type blast furnace tuyere cover | |
| CN206033792U (en) | Long -life RH stove dip pipe integrated configuration | |
| CN217677614U (en) | Corrosion-resistant blast furnace iron runner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |