CN201598305U - Rotary hearth furnace hearth structure - Google Patents
Rotary hearth furnace hearth structure Download PDFInfo
- Publication number
- CN201598305U CN201598305U CN2009203153855U CN200920315385U CN201598305U CN 201598305 U CN201598305 U CN 201598305U CN 2009203153855 U CN2009203153855 U CN 2009203153855U CN 200920315385 U CN200920315385 U CN 200920315385U CN 201598305 U CN201598305 U CN 201598305U
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- CN
- China
- Prior art keywords
- support
- rotary hearth
- hearth furnace
- stove
- standing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rotary hearth furnace hearth structure for a novel technique of direct reduction of iron based on coal. An upper pan is provided with a refractory material layer, support devices are uniformly disposed on the outer circumference of the bottom face of a lower pan, each support device includes a forged steel support roller, a support rotating wheel and a support track, the forged steel support rollers are fixed on the outer circumference of the bottom face of the lower pan, the lower end of the each forged steel support roller is equipped with the support rotating wheel in a fixed manner, the support rotating wheel is disposed inside the support track, and the support track is mounted on a concrete foundation. The rotary hearth furnace hearth structure is applicable to large-sized rotary hearth furnace equipment (equipment with annual yield of megatons), and provides stable support for a great deal of raw materials arranged inside a rotary hearth furnace, thereby realizing high productivity.
Description
Technical field
The utility model relates to coal-based direct reduction iron production unit field, more particularly, relates to a kind of bottom construction that is used for rotary hearth furnace.
Background technology
Along with the continuous development of international steel industry and the quick raising of production capacity, opposite scarcity of coking coal resource and improving constantly of environmental requirement have also brought huge pressure for steel sustainable development.
Iron And Steel Industry adapts to the environmental protection requirement that improves day by day in order to break away from the yoke of coking coal resource shortage to the Iron And Steel Industry development, realizes energy-saving and cost-reducing; improve the steel products structure; realize the comprehensive utilization of resource, under this environment, the coal-based direct reduction iron technology is also promoted development fast.The industrial scale of coal-based direct reduction iron novel process is less at present, and the maximum in the world at present rotary hearth furnace coal base reduction iron U.S. IRON of power Inland Steel annual production is 500,000 tons, and existing equipment has restricted output.
The utility model content
Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of rotary hearth furnace bottom construction that is used for the coal-based direct reduction iron novel process is provided.
The utility model rotary hearth furnace bottom construction, be achieved by following technical proposals, the rotary hearth furnace furnace bottom is made up of upper stone or metal plate for standing on a stove as a precaution against fire and lower stone or metal plate for standing on a stove as a precaution against fire, it is characterized in that, on the described upper stone or metal plate for standing on a stove as a precaution against fire refractory masses is set, described lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle evenly is provided with bracing or strutting arrangement, and described bracing or strutting arrangement comprises the forged steel supporting roll, supports runner and supporting track, and lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle is the forged steel supporting roll fixedly; Each forged steel supporting roll lower end fixed support runner; Described support runner is arranged in the supporting track, and supporting track is installed on the concrete foundation.
The utility model is applicable to large-scale rotary hearth furnace equipment (annual production megaton equipment), provides firm support for placing a large amount of raw materials in the rotary hearth furnace, thereby realizes high production capacity; Place raw material on the upper stone or metal plate for standing on a stove as a precaution against fire refractory masses, heat resisting temperature can reach about 1000 ℃, can ensure under hot conditions the support to raw material.
Description of drawings
Fig. 1 the utility model structural representation;
Fig. 2 the utility model support device structure synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the rotary hearth furnace furnace bottom is made up of upper stone or metal plate for standing on a stove as a precaution against fire 11 and lower stone or metal plate for standing on a stove as a precaution against fire 12, refractory masses 13 is set on the described upper stone or metal plate for standing on a stove as a precaution against fire, described lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle evenly is provided with bracing or strutting arrangement 14, as shown in Figure 2, bracing or strutting arrangement comprises forged steel supporting roll 1, supports runner 2 and supporting track 3, and lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle is the forged steel supporting roll fixedly; Each forged steel supporting roll lower end fixed support runner; Described support runner is arranged in the supporting track, and supporting track is installed on the concrete foundation 4.
Rotary hearth furnace in use lower stone or metal plate for standing on a stove as a precaution against fire is subjected to drive rotation, and supporting roll rotates with supporting in the supporting track of runner on concrete foundation simultaneously, for whole furnace bottom is done an effectively overfill protection.
Embodiment recited above is described the utility model preferred implementation; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; common engineering technical personnel make the technical solution of the utility model in this area various distortion and improvement all should belong to protection domain of the present utility model.
Claims (1)
1. rotary hearth furnace bottom construction, the rotary hearth furnace furnace bottom is made up of upper stone or metal plate for standing on a stove as a precaution against fire and lower stone or metal plate for standing on a stove as a precaution against fire, it is characterized in that, on the described upper stone or metal plate for standing on a stove as a precaution against fire refractory masses is set, described lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle evenly is provided with bracing or strutting arrangement, described bracing or strutting arrangement comprises the forged steel supporting roll, supports runner and supporting track, and lower stone or metal plate for standing on a stove as a precaution against fire bottom surface excircle is the forged steel supporting roll fixedly; Each forged steel supporting roll lower end fixed support runner; Described support runner is arranged in the supporting track, and supporting track is installed on the concrete foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153855U CN201598305U (en) | 2009-11-21 | 2009-11-21 | Rotary hearth furnace hearth structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153855U CN201598305U (en) | 2009-11-21 | 2009-11-21 | Rotary hearth furnace hearth structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598305U true CN201598305U (en) | 2010-10-06 |
Family
ID=42809356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203153855U Expired - Fee Related CN201598305U (en) | 2009-11-21 | 2009-11-21 | Rotary hearth furnace hearth structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586540A (en) * | 2012-03-06 | 2012-07-18 | 北京神雾环境能源科技集团股份有限公司 | Rotary hearth furnace hearth structure |
-
2009
- 2009-11-21 CN CN2009203153855U patent/CN201598305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586540A (en) * | 2012-03-06 | 2012-07-18 | 北京神雾环境能源科技集团股份有限公司 | Rotary hearth furnace hearth structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |