CN2301690Y - Internal secondary cooling device for shaft furnace - Google Patents
Internal secondary cooling device for shaft furnace Download PDFInfo
- Publication number
- CN2301690Y CN2301690Y CN 97236114 CN97236114U CN2301690Y CN 2301690 Y CN2301690 Y CN 2301690Y CN 97236114 CN97236114 CN 97236114 CN 97236114 U CN97236114 U CN 97236114U CN 2301690 Y CN2301690 Y CN 2301690Y
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- CN
- China
- Prior art keywords
- pelletizing
- shaft furnace
- utility
- model
- secondary cooling
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- Expired - Fee Related
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Abstract
The utility model relates to an internal secondary cooling device for a shaft furnace, which is used for cooling a hot pellet and is composed of a waist wind pipe, a grate plate box and a shutter. The utility model can cause the hot pellet with 500 DEG-600 DEG to be rapidly cooled below 100 DEG in order to prevent the discharged pelletizing in the furnace to cause the fault of the equipment in the transportation process, and the environment and the personal labor condition are improved. Simultaneously, the technological process is simplified, the production is intensified, and the investment is saved. The utility model is not only used for the oxidizing sintering pelletizing process of the shaft furnace of the metallurgy system but also can be used for the cooling process of other solid high-temperature materials.
Description
The utility model belongs to heating cooling body of heater class in the mechanical engineering, relates to material cooling technology field in the stove.
At present, in the iron and steel industry system, adopt shaft furnace oxidizing roasting to become pelletizing process more.Current domestic shaft furnace is produced pelletizing, because the roasting pelletizing only adopts once cooling in shaft furnace, cools off abundant inadequately, the pelletizing temperature of discharging is generally at 500～600 degree, high-temperature pelletizing like this has a strong impact on life-span of pelletizing finished product transporting equipment, and is all influential to working environment and human body safety.
The purpose of this utility model is to increase secondary cooling apparatus for overcoming the above-mentioned defective that exists in shaft furnace, reduces the pelletizing tapping temperature.
The technical solution of the utility model is to increase by one section secondary cooling apparatus in the shaft furnace of oxidizing roasting pelletizing.Secondary cooling apparatus is made of the waist airduct that is attached to stove inwall middle part, the grate plate case of body of heater centre and the shutter of bottom, furnace wall.Secondary wind in shutter enters stove laterally with stove in from top to bottom vertical contact of material pelletizing of motion carry out heat exchange, the grate plate case of hot gas major part by the stove centre that cools off behind the pelletizing discharges out of the furnace.The grate plate case is made the shutter form with cast steel, prevents that the material pelletizing from entering in the grate plate case.Waist airduct opening below, also be to prevent that pelletizing from entering the waist airduct, the waist airduct is supported by two water service pipes.
The structural representation of the inner secondary cooling apparatus of the utility model shaft furnace as shown in Figure 1, the grate plate box structure schematic diagram in this device is as shown in Figure 2.
In Fig. 1, airduct of 1-; 2-big flood fine strain of millet; The 3-discaling roll; 4-shell water jacket; 5-waist airduct, two, be welded on dihedral cast steel on two walls of stove, opening down, in adorn two cooling water pipe bearing supports; 6-grate plate case, structure is seen Fig. 2, makes the grate plate structure of venetian blind type with cast steel, grate plate does not have cooling device; The 7-shutter; The 8-hopper.
The high temperature sintering pelletizing enters discaling roll 3 at the stove middle part through the cold wind cooling of an airduct 1 and carries out fragmentation, enters in the secondary cooling apparatus from top to bottom then to cool, and falls into hopper 8 at last and discharges out of the furnace.Secondary wind laterally enters in the stove through shutter 7 and contacts with top-down pelletizing is vertical, the pelletizing cooling, and gas heating, the hot gas major part after the intensification enters grate plate case 6 backs and discharges out of the furnace from the bottom, and the small part hot gas rises to waist airduct 5 and discharges.The small part hot gas of a wind descends simultaneously with the material pelletizing in stove simultaneously, discharges until waist airduct 5.
The utility model adopts secondary cooling apparatus, and the high temperature pelletizing of 500～600 degree is cooled rapidly in stove below 100 degree, prevents to transport pelletizing equipment and is out of order, and improves environment and personal working condition.Simplify technological process simultaneously, strengthen and produce, save investment.
The utility model not only is used in the iron and steel industry shaft furnace oxidizing roasting pelletizing process, also applicable to the cooling procedure of other solid high-temperature materials.
Claims (1)
1, the inner secondary cooling apparatus of a kind of shaft furnace is characterized in that it mainly is made of the waist airduct that is attached to stove inwall middle part, the grate plate case of body of heater centre and the shutter of bottom, furnace wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236114 CN2301690Y (en) | 1997-05-22 | 1997-05-22 | Internal secondary cooling device for shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236114 CN2301690Y (en) | 1997-05-22 | 1997-05-22 | Internal secondary cooling device for shaft furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2301690Y true CN2301690Y (en) | 1998-12-23 |
Family
ID=33947065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236114 Expired - Fee Related CN2301690Y (en) | 1997-05-22 | 1997-05-22 | Internal secondary cooling device for shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2301690Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798285A (en) * | 2012-08-23 | 2012-11-28 | 济钢集团国际工程技术有限公司 | Internal cooling device of oxidized pellet shaft furnace |
| CN108088236A (en) * | 2018-01-18 | 2018-05-29 | 南京苏冶钙业技术有限公司 | Industry calcining shaft kiln |
-
1997
- 1997-05-22 CN CN 97236114 patent/CN2301690Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798285A (en) * | 2012-08-23 | 2012-11-28 | 济钢集团国际工程技术有限公司 | Internal cooling device of oxidized pellet shaft furnace |
| CN108088236A (en) * | 2018-01-18 | 2018-05-29 | 南京苏冶钙业技术有限公司 | Industry calcining shaft kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |