CN110360839B - Wind scooper structure of rotary kiln - Google Patents
Wind scooper structure of rotary kiln Download PDFInfo
- Publication number
- CN110360839B CN110360839B CN201910560308.4A CN201910560308A CN110360839B CN 110360839 B CN110360839 B CN 110360839B CN 201910560308 A CN201910560308 A CN 201910560308A CN 110360839 B CN110360839 B CN 110360839B
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- CN
- China
- Prior art keywords
- wind scooper
- rib plate
- connecting plates
- rotary kiln
- barrel
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
- F27B7/362—Introducing gas into the drum axially or through the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
- F27B7/362—Introducing gas into the drum axially or through the wall
- F27B2007/365—Introducing gas into the drum axially or through the wall longitudinally
Abstract
The invention discloses a rotary kiln wind scooper structure, which comprises a wind scooper, a rib plate and a cylinder, wherein the rib plate is positioned between the wind scooper and the cylinder, the wind scooper is welded with the rib plate, the rib plate is welded with the cylinder, and the cylinder is arranged on a rotary kiln, and is characterized in that: two groups of U-shaped connecting plates are arranged on two sides of the rib plate respectively, wherein the two groups of connecting plates are arranged between the wind scooper and the rib plate, the other two groups of connecting plates are arranged between the rib plate and the barrel, a U-shaped opening of each connecting plate is connected to the rib plate, threaded holes are correspondingly formed in the connecting plates, the wind scooper and the rib plate respectively, the connecting plates are connected with the wind scooper and the rib plate through penetrating bolts in the threaded holes, threaded holes are correspondingly formed in the connecting plates, the barrel and the rib plate respectively, and the connecting plates are connected with the barrel and the rib plate through countersunk bolts in the threaded holes. The invention has more stable and reliable operation in high temperature environment, reduces the failure rate of equipment and prolongs the service life.
Description
Technical Field
The invention relates to the technical field of thermal equipment, in particular to a wind scooper structure of a rotary kiln.
Background
The rotary kiln is one of the important devices in the production line of grate-rotary kiln pellets, and is the key device for roasting and consolidating preheated pellets. The design specification of the pellet rotary kiln of the Zhanjiang iron and steel plant is phi 6.96 x 52m, the material filling rate is 8.98%, the processing capacity is about 645t/h, and the equipment is formally put into production in 2009 and 9 months. During continuous production, because the rotary kiln wind scooper is located at the discharge end of the rotary kiln, the temperature of the working environment of the discharge end is high, the wind scooper 1 is made of 1Cr18Ni9Ti, the cylinder 2 is made of 20g, the rib plate 3 is made of Q235, the design structure is made of three different materials and adopts broken welding connection (see figure 1), the cylinder at the discharge end of the rotary kiln is easy to deform due to the influence of high temperature at the head of the rotary kiln and different base materials, the welding part is easy to strip and deform after thermal expansion, the rib plate 3 drops, the wind scooper 1 cannot be positioned and the like, so that the discharge end of the rotary kiln cannot obtain a good cooling effect, the cylinder at the discharge end of the rotary kiln is easy to deform, the service life of.
Disclosure of Invention
The invention aims to provide a rotary kiln wind scooper structure, which overcomes the defect that different materials are designed in the prior art and are only connected by welding by optimizing the wind scooper structure at the discharge end of a pellet rotary kiln in a steel plant, so that the structure at the part can run more stably and reliably in a high-temperature environment without being influenced by severe environment and the like, the cooling effect is ensured, the equipment failure rate is reduced, the service life is prolonged, and the difficult problem of long-term pellet production is solved by less cost investment.
The invention adopts the following technical scheme:
the utility model provides a rotary kiln wind scooper structure, includes wind scooper, gusset and barrel, the gusset be located between wind scooper and the barrel, wind scooper and gusset welding, gusset and barrel welding, the barrel is installed on the rotary kiln, its characterized in that: two groups of U-shaped connecting plates are arranged on two sides of the rib plate respectively, wherein the two groups of connecting plates are arranged between the wind scooper and the rib plate, the other two groups of connecting plates are arranged between the rib plate and the barrel, a U-shaped opening of each connecting plate is connected to the rib plate, threaded holes are correspondingly formed in the connecting plates, the wind scooper and the rib plate respectively, the connecting plates are connected with the wind scooper and the rib plate through penetrating bolts in the threaded holes, threaded holes are correspondingly formed in the connecting plates, the barrel and the rib plate respectively, and the connecting plates are connected with the barrel and the rib plate through countersunk bolts in the threaded holes.
The wind scooper is made of 1Cr18Ni9Ti, the cylinder is made of 20g, and the rib plate is made of Q235.
The connecting plate is made of Q235 materials, and the specification is 150 x 300 mm.
The specification of the opposite-penetrating bolt is M24 multiplied by 70mm of high-temperature-resistant bolt.
The specification of the countersunk head bolt is a high-temperature resistant bolt with the size of M24 multiplied by 50 mm.
The invention has the beneficial effects that:
1. by adopting the wind scooper structure, the wind scooper can stably and reliably run in a high-temperature environment, and has a good cooling effect.
2. The durability of the refractory material at the part is improved.
3. The failure rate is reduced, and the long-term stable and smooth running of the rotary kiln is ensured.
Drawings
Fig. 1 is a drawing in the background art.
Fig. 2 is a schematic structural diagram of the present invention.
In fig. 2: 1 pair of through bolts, 2 countersunk head bolts, 3 wind scoopers, 4 rib plates, 5 cylinders and 6 connecting plates.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, a wind scooper structure of a rotary kiln comprises a wind scooper 3, a rib plate 4 and a cylinder 5, the rib plate 4 is positioned between the wind scooper 3 and the cylinder 5, the wind scooper 3 is welded with the rib plate 4, the rib plate 4 is welded with the cylinder 5, the cylinder 5 is arranged on the rotary kiln, two groups of U-shaped connecting plates 6 are respectively arranged on two sides of the rib plate 4, wherein two groups of connecting plates 6 are arranged between the wind scooper 3 and the rib plate 4, the other two groups of connecting plates 6 are arranged between the rib plate 4 and the cylinder body 5, the U-shaped opening of the connecting plate 6 is connected to the rib plate 4, threaded holes are correspondingly formed in the connecting plate 6, the air guide cover 3 and the rib plate 4 respectively, the connecting plate 6, the air guide cover 3 and the rib plate 4 are connected through the through bolts 1 in the threaded holes, threaded holes are correspondingly formed in the connecting plate 6, the barrel 5 and the rib plate 4 respectively, and the connecting plate 6, the barrel 5 and the rib plate 4 are connected through the countersunk bolts 2 in the threaded holes.
The wind scooper 3 is made of 1Cr18Ni9Ti, the cylinder 5 is made of 20g, and the rib plate 3 is made of Q235.
The connecting plate 6 is made of Q235 material, and the specification is 150 x 300 mm.
The specification of the opposite-penetrating bolt 1 is M24 multiplied by 70mm high-temperature resistant bolt.
The specification of the countersunk head bolt 2 is M24 multiplied by 50mm high-temperature resistant bolt.
The invention is applied to the rotary kiln for continuous production for nearly one year, has good running state, greatly reduces the fault rate of the part, ensures the long-term stable and smooth running of the rotary kiln, and has the significance of popularization in the same industry.
Claims (5)
1. The utility model provides a rotary kiln wind scooper structure, includes wind scooper (3), gusset (4) and barrel (5), gusset (4) be located between wind scooper (3) and barrel (5), wind scooper (3) and gusset (4) welding, gusset (4) and barrel (5) welding, barrel (5) install on the rotary kiln, its characterized in that: two sides of the rib plate (4) are respectively provided with two groups of U-shaped connecting plates (6), wherein the two groups of connecting plates (6) are arranged between the wind scooper (3) and the rib plate (4), the other two groups of connecting plates (6) are arranged between the rib plate (4) and the barrel body (5), a U-shaped opening of each connecting plate (6) is connected to the rib plate (4), the connecting plates (6), the wind scooper (3) and the rib plate (4) are respectively and correspondingly provided with a threaded hole, the connecting plates (6), the wind scooper (3) and the rib plate (4) are connected through the through bolts (1) in the threaded holes, the connecting plates (6), the barrel body (5) and the rib plate (4) are respectively and correspondingly provided with a threaded hole, and the connecting plates (6) are connected with the barrel body (5) and the rib plate (4) through the countersunk head bolts (2) in the threaded holes.
2. The rotary kiln wind scooper structure according to claim 1, wherein: the wind scooper (3) is made of 1Cr18Ni9Ti, the cylinder body (5) is made of 20g, and the rib plate (4) is made of Q235.
3. The rotary kiln wind scooper structure according to claim 1, wherein: the connecting plate (6) is made of Q235 material, and the specification is 150 x 300 mm.
4. The rotary kiln wind scooper structure according to claim 1, wherein: the specification of the opposite-penetrating bolt (1) is M24 multiplied by 70mm of high-temperature-resistant bolt.
5. The rotary kiln wind scooper structure according to claim 1, wherein: the specification of the countersunk head bolt (2) is a high-temperature resistant bolt with the specification of M24 multiplied by 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560308.4A CN110360839B (en) | 2019-06-26 | 2019-06-26 | Wind scooper structure of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560308.4A CN110360839B (en) | 2019-06-26 | 2019-06-26 | Wind scooper structure of rotary kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360839A CN110360839A (en) | 2019-10-22 |
| CN110360839B true CN110360839B (en) | 2020-12-25 |
Family
ID=68216446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910560308.4A Active CN110360839B (en) | 2019-06-26 | 2019-06-26 | Wind scooper structure of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360839B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212632A (en) * | 1979-05-02 | 1980-07-15 | Allis-Chalmers Corporation | Cooling arrangement for rotary kiln |
| JP4165984B2 (en) * | 2000-02-18 | 2008-10-15 | 日立造船株式会社 | Rotary melt kiln outlet structure |
| CN201368663Y (en) * | 2009-03-09 | 2009-12-23 | 王进亮 | Rotary cement kiln eye with long service life |
| CN101984318A (en) * | 2010-12-01 | 2011-03-09 | 新兴河北工程技术有限公司 | Kiln end of pellet rotary kiln tail |
| CN203478935U (en) * | 2013-09-26 | 2014-03-12 | 中冶北方（大连）工程技术有限公司 | Head kiln protective opening device of large-scale rotary kiln |
| CN205066417U (en) * | 2015-08-31 | 2016-03-02 | 攀枝花钢城集团有限公司 | Rotary kiln kiln tail chute |
-
2019
- 2019-06-26 CN CN201910560308.4A patent/CN110360839B/en active Active
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| Publication number | Publication date |
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| CN110360839A (en) | 2019-10-22 |
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