CN210856182U - Novel blast furnace distributing chute - Google Patents
Novel blast furnace distributing chute Download PDFInfo
- Publication number
- CN210856182U CN210856182U CN201921549205.XU CN201921549205U CN210856182U CN 210856182 U CN210856182 U CN 210856182U CN 201921549205 U CN201921549205 U CN 201921549205U CN 210856182 U CN210856182 U CN 210856182U
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- Prior art keywords
- chute
- wear
- nest
- long
- wall
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- 239000000463 material Substances 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 14
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 208000021760 high fever Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model discloses a novel blast furnace distribution chute has solved prior art in the wear-resisting welt change frequent problem, its technical essential is: the utility model provides a novel blast furnace distribution chute, includes the chute body and sets up at this internal wear-resisting welt of chute, and chute body inner wall is provided with the parallel long-pending nest rib of a plurality of intervals, and is adjacent form long-pending nest groove between the long-pending nest rib, long-pending nest rib perpendicular to chute body's defeated material direction is provided with between wear-resisting welt and the long-pending nest rib and is used for connecting piece between them. Through the scheme, after the wear-resistant lining plate is worn through, furnace burden falls into each nest accumulation groove to be filled, after the nest accumulation grooves are filled with the furnace burden, the furnace burden in the follow-up furnace burden and the furnace burden in the nest accumulation grooves are in friction collision when passing through the inner wall of the chute body, and then the furnace burden is prevented from carrying out erosion and abrasion on the inner wall of the chute after the wear-resistant lining plate is worn through.
Description
Technical Field
The utility model belongs to the technical field of the technique of distribution chute and specifically relates to a novel blast furnace distribution chute.
Background
The high temperature distribution chute is one of the indispensable equipment of blast furnace ironmaking, and it is bearing the task of final rotatory cloth in to the stove, because its groove face still need constantly bear the erodeing of furnace charge when the distribution chute is long-term operation under high temperature, strong corrosive gas and heavy dust environment, therefore the distribution chute after using for a period just faces the change scheduling problem.
Therefore, the existing distribution chute is generally provided with a wear-resistant lining plate placed in the chute shell, and the wear-resistant lining plate is directly removed from high-temperature furnace burden, so that the chute is replaced to be in contact with the furnace burden, and the service life of the chute is prolonged. Because the service environment temperature of the wear-resistant lining plate is 150-300 ℃ for a long time, the temperature can reach more than 600 ℃ for a short time, and the wear-resistant lining plate is directly impacted and worn by furnace burden, the service condition is harsh, so that part of the area of the wear-resistant lining plate is worn through frequently after the wear-resistant lining plate is used for a period of time, and the furnace burden still impacts and wears the inner wall of the chute below the part of the area after the wear-resistant lining plate is worn through. And then need to change the distribution chute that the volume is bigger, the quality is bigger after avoiding the furnace charge to wear out the chute, need regularly change wear-resisting welt, nevertheless this also leads to changing the frequency too frequently simultaneously, awaits improving.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel blast furnace distribution chute with long service life and low replacement frequency.
The utility model discloses a can realize through following technical scheme:
the utility model provides a novel blast furnace distribution chute, includes that the chute body sets up at this internal wear-resisting welt of chute, and chute body inner wall is provided with the parallel long-pending nest rib of a plurality of intervals, and is adjacent form long-pending nest groove between the long-pending nest rib, long-pending nest rib perpendicular to chute body's defeated material direction, wear-resisting welt with be provided with between the long-pending nest rib and be used for connecting piece between them.
Through adopting above-mentioned technical scheme, set up a plurality of long-pending nest grooves that nest rib formed a plurality of intervals on the chute body inner wall of wear-resisting welt below for the furnace charge will fall into each long-pending nest inslot and obtain filling when wear-resisting welt wears through, fill up long-pending nest groove when the furnace charge after, will make follow-up furnace charge pass through in chute body inner wall when with long-pending nest inslot furnace charge emergence friction collision, and then avoid the furnace charge to carry out erosive wear to the chute inner wall after wear-resisting welt wears through. Simultaneously, the long-pending nest rib that sets up on the chute inner wall will separate wear-resisting welt and chute body inner wall behind the wear-resisting welt of connecting with the help of the connecting piece, forms thermal-insulated space before wear-resisting welt is worn out, makes wear-resisting welt produced high fever can obtain the heat dissipation in thermal-insulated space when receiving the erode, and then avoids the overheated easy deformation that produces of chute body, the life of extension chute.
Further setting the following steps: and a plurality of partition ribs parallel to the material conveying direction of the chute body are arranged on the inner wall of the chute body at intervals, and the partition ribs partition the insides of the nest accumulation grooves to form the material accumulation grooves distributed in a shape like a Chinese character 'jing'.
By adopting the technical scheme, the accumulated nest grooves are separated by the plurality of groups of separating ribs to form more and smaller accumulated material grooves, so that the charging chute which can enter the wear-resistant lining plate can be quickly filled with the furnace burden after the wear-resistant lining plate is worn through, and further the follow-up furnace burden can be continuously passed through the chute more quickly.
Further setting the following steps: the distance between the adjacent partition ribs is sequentially increased from the distance between the closest partition ribs on two sides of the center line of the chute body to the direction far away from the center line of the chute body.
By adopting the technical scheme, because the furnace burden is most serious to the middle plate body of the wear-resistant lining plate in the process of passing through the chute and the inner wear-resistant lining plate, the plate body in the middle area of the wear-resistant lining plate is most easily worn through, when the distance between the partition ribs close to the central line of the chute body is minimum, the material accumulation groove below the wear-resistant lining plate can be smaller, the furnace burden can be quickly filled, the subsequent furnace burden can smoothly pass through, the number of the whole partition ribs is reduced, and the cost is reduced.
Further setting the following steps: a material containing box with an open top is placed in the material accumulating groove, and the side walls of the material containing box are attached to the inner walls of the four sides of the material accumulating groove.
Through adopting above-mentioned technical scheme, but with the help of flourishing magazine makes the furnace charge splendid attire in flourishing magazine when filling into the long-pending silo, and then change wear-resisting welt in the later stage and can be more swiftly convenient when needing to clear up each long-pending silo furnace charge, need not whole chute body that stirs, it can to take out the flourishing magazine.
Further setting the following steps: the cross part of the partition rib and the nest-accumulating rib is provided with a mounting hole, the two side edges of the wear-resistant lining plate are provided with connecting holes in a penetrating manner, the connecting piece is a connecting bolt penetrating through the connecting holes and driven into the mounting hole, and the end part of the connecting bolt is in threaded connection with a connecting nut tightly abutting against the wear-resistant lining plate.
Through adopting above-mentioned technical scheme, make connecting bolt pass wear-resisting welt from the both sides of wear-resisting welt with the help of the connecting hole and be connected to the mounting hole of below, realize fixing wear-resisting welt in the chute body.
Further setting the following steps: the diameter of one end, far away from the chute inner wall, of the connecting hole is larger than that of one end, close to the chute inner wall, of the connecting hole, and the connecting nut is located in the connecting hole.
By adopting the technical scheme, the connecting nut is positioned inside the surface of the wear-resistant lining plate, so that the furnace burden is prevented from striking the connecting nut in the blanking process.
Further setting the following steps: a plurality of welding wire grooves are formed in the material conveying surface of the wear-resistant lining plate, and wear-resistant welding wires extending out of the welding wire grooves are filled in the welding wire grooves.
Through adopting above-mentioned technical scheme, the wear-resisting effect of reinforcing wear-resisting welt prolongs the life of wear-resisting welt.
To sum up, the utility model discloses a beneficial technological effect does:
(1) after the wear-resistant lining plate in the chute body is worn, the inner wall of the chute body can be protected by virtue of furnace burden loaded into the material accumulation groove, and the service life is effectively prolonged;
(2) a heat insulation space is formed between the chute body and the wear-resistant lining plate by the nest-accumulating ribs and the partition ribs, so that the temperature of the chute body is reduced, and the service life of the chute body is prolonged.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a chute body according to an embodiment of the present invention;
fig. 3 is a top view of an embodiment of the invention;
fig. 4 is a sectional view taken along line a-a of fig. 3.
Reference numerals: 1. a chute body; 2. a wear-resistant lining plate; 3. laying the pit and the rib; 4. a nest accumulation groove; 5. partition ribs; 6. a material accumulating tank; 7. a material containing box; 8. mounting holes; 9. connecting holes; 10. a connecting bolt; 11. a connecting nut; 12. a wire groove; 13. a wear-resistant welding wire.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a novel blast furnace distribution chute, including chute body 1 and the wear-resisting welt 2 of setting in chute body 1, chute body 1 and wear-resisting welt 2 all are the arc structure.
Referring to fig. 2, a plurality of nest accumulation ribs 3 which are parallel at intervals are integrally arranged on the inner wall of the chute body 1, and the nest accumulation ribs 3 are perpendicular to the conveying direction of the chute body 1, so that nest accumulation grooves 4 are formed between the adjacent nest accumulation ribs 3. Still be provided with a plurality of being on a parallel with chute body 1 defeated material direction, namely chute body 1 axial wall rib 5 on the chute body 1 inner wall at interval an organic whole, a plurality of wall ribs 5 will each hold the inside wall of nest groove 4 and separate and form the long-pending silo 6 that is "well" font and distributes. It is worth to be noted that the distance between the adjacent partition ribs 5 is gradually increased from the distance between the closest partition ribs 5 on the two sides of the center line of the chute body 1 to the direction far away from the center line of the chute body 1, so that the volume of the material accumulation grooves 6 on the two sides of the chute body 1 is larger than that of the material accumulation grooves 6 in the middle of the chute body 1. A material containing box 7 with an open top is further arranged in the material accumulating groove 6, and the side walls of the material containing box 7 are attached to the inner walls of the four sides of the material accumulating groove 6.
Referring to fig. 2 and 4, the wear-resistant lining board 2 is connected with the nest-accumulating ribs 3 through the connecting piece, the cross section of the partition ribs 5 and the nest-accumulating ribs 3 close to the two side edges of the wear-resistant lining board 2 is provided with a mounting hole 8, meanwhile, the two side edges of the wear-resistant lining board 2 are penetrated through and provided with a connecting hole 9, the connecting piece is a connecting bolt 10 penetrating through the connecting hole 9 and screwed into the mounting hole 8, the end part of the connecting bolt 10 is in threaded connection with a connecting nut 11 abutting against the wear-resistant lining board 2, the wear-resistant lining board 2 is abutted against the partition ribs 5 and the nest-accumulating ribs 3 through the connecting nut 11, and the wear-resistant lining board 2 is fixedly. It is worth noting that the diameter of one end, far away from the chute inner wall, of the connecting hole 9 is larger than the diameter of one end, close to the chute inner wall, of the connecting hole 9, the diameter of one end, far away from the chute inner wall, of the connecting hole 9 is larger than the diameter of the connecting nut 11, so that when the connecting nut 11 abuts against the wear-resistant lining plate 2 tightly, the connecting nut 11 and the end portion of the connecting screw rod can be located in the connecting hole 9, and therefore furnace materials on the wear-resistant lining plate 2 cannot directly impact the connecting screw rod and the.
Referring to fig. 1 or 4, in order to prolong the service life of the wear-resistant lining plate 2, a plurality of welding wire grooves 12 are formed on the feeding surface of the wear-resistant lining plate 2, a molten metal welding wire is filled in the welding wire grooves 12, so that the welding wire grooves 12 are cooled to form a wear-resistant welding wire 13, and the end parts of the wear-resistant welding wire 13 extend out of the welding wire grooves 12.
The implementation principle and the beneficial effects of the embodiment are as follows: a plurality of long-pending silo 6 between wear-resisting welt 2 and the chute body 1 inner wall for the furnace charge will fall into each long-pending silo 6 and obtain filling when wear-resisting welt 2 wears through, after the long-pending silo 6 is filled up to the furnace charge, will make follow-up furnace charge pass through in chute body 1 inner wall when with the furnace charge in long-pending nest silo and take place the friction and collision, and then avoid the furnace charge to carry out the erosive wear to the chute inner wall after wear-resisting welt 2 wears through. Simultaneously, long-pending nest rib 3 that sets up on the chute inner wall separates wear-resisting welt 2 and chute body 1 inner wall with cutting off rib 5, and then forms thermal-insulated space between wear-resisting welt 2 and chute body 1 inner wall, makes wear-resisting welt 2 produced high fever when receiving the erode can obtain the heat dissipation in thermal-insulated space, and then avoids the overheated easy deformation that produces of chute body 1, the life of extension chute.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a novel blast furnace cloth chute, includes chute body (1) and sets up wear-resisting welt (2) in chute body (1), its characterized in that: chute body (1) inner wall is provided with a plurality of parallel long-pending nest ribs (3) of interval, and is adjacent form long-pending nest groove (4) between long-pending nest rib (3), long-pending nest rib (3) perpendicular to chute body's (1) defeated material direction, wear-resisting welt (2) with be provided with between long-pending nest rib (3) and be used for connecting piece between them.
2. The novel blast furnace distribution chute of claim 1, characterized in that: still be provided with a plurality of wall ribs (5) that are on a parallel with the defeated material direction of chute body (1) at the interval on chute body (1) inner wall, a plurality of wall rib (5) will each the internal wall of long-pending nest groove (4) cuts off and forms long-pending silo (6) that are "well" font and distribute.
3. The novel blast furnace distribution chute of claim 2, characterized in that: the distance between the adjacent partition ribs (5) is sequentially increased from the distance between the closest partition ribs (5) on two sides of the center line of the chute body (1) to the direction far away from the center line of the chute body (1).
4. The novel blast furnace distribution chute of claim 2, characterized in that: a material containing box (7) with an open top is placed in the material accumulating groove (6), and the side walls of the material containing box (7) are attached to the inner walls of the four sides of the material accumulating groove (6).
5. The novel blast furnace distribution chute of claim 2, characterized in that: the partition rib (5) and the nest-accumulating rib (3) are crossed to form a mounting hole (8), connecting holes (9) are formed in the edges of two sides of the wear-resistant lining plate (2) in a penetrating mode, the connecting piece penetrates through the connecting holes (9) to be driven into connecting bolts (10) in the mounting holes (8), and connecting nuts (11) abutting against the wear-resistant lining plate (2) are in threaded connection with the end portions of the connecting bolts (10).
6. The novel blast furnace distribution chute of claim 5, characterized in that: the diameter of one end, far away from the chute inner wall, of the connecting hole (9) is larger than that of one end, close to the chute inner wall, of the connecting hole, and the connecting nut (11) is located in the connecting hole (9).
7. The novel blast furnace distribution chute of claim 1, characterized in that: a plurality of welding wire grooves (12) are formed in the material conveying surface of the wear-resistant lining plate (2), and wear-resistant welding wires (13) extending out of the welding wire grooves (12) are filled in the welding wire grooves (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921549205.XU CN210856182U (en) | 2019-09-17 | 2019-09-17 | Novel blast furnace distributing chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921549205.XU CN210856182U (en) | 2019-09-17 | 2019-09-17 | Novel blast furnace distributing chute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210856182U true CN210856182U (en) | 2020-06-26 |
Family
ID=71304195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921549205.XU Expired - Fee Related CN210856182U (en) | 2019-09-17 | 2019-09-17 | Novel blast furnace distributing chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210856182U (en) |
-
2019
- 2019-09-17 CN CN201921549205.XU patent/CN210856182U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 |