CN113390262B - Side wall structure of roasting furnace - Google Patents
Side wall structure of roasting furnace Download PDFInfo
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- CN113390262B CN113390262B CN202110701456.0A CN202110701456A CN113390262B CN 113390262 B CN113390262 B CN 113390262B CN 202110701456 A CN202110701456 A CN 202110701456A CN 113390262 B CN113390262 B CN 113390262B
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- flame path
- top block
- flue
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- wall structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
- F27D1/06—Composite bricks or blocks, e.g. panels, modules
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention relates to the technical field of open type roasting furnaces for carbon production, in particular to a side wall structure of a roasting furnace, wherein the outside of the roasting furnace is surrounded by a concrete outer wall, the side wall structure also comprises a feed box and a flame path, the feed box comprises a side material box and a middle feed box, the flame path comprises a side flame path and a middle flame path, and the outsides of the side flame path and the middle flame path are both built by clay brick layers; and a special-shaped side flame path furnace top block is adopted to manually divide a side wall structure outside the side flame path into two areas. The high-strength heat insulation board is comprehensively matched and used, so that the heat transfer of the side flame path to the outside can be reduced, and cold air can be prevented from leaking into the side flame path from a gap of a side wall of the roasting furnace, so that the temperature of the side flame path of the roasting furnace is increased under the condition of not increasing the energy consumption, and the quality of the anode carbon block in the side material box is finally improved.
Description
Technical Field
The invention relates to the technical field of open type roasting furnaces for carbon production, in particular to a side wall structure of a roasting furnace.
Background
The open type roasting furnace is core equipment for roasting the anode for aluminum in carbon enterprises, can improve the physical and chemical performance index of the anode through a roasting process, and is finally used for electrolytic aluminum production.
The quality of the anode is a key factor influencing electrolysis production, the flame path temperature is critical to the quality of the anode, and the quality of the anode carbon block in the side bin is often problematic in the anode roasting production, mainly because the temperature of the side flame path cannot meet the roasting requirement. On the one hand, different with middle flame path, the limit flame path outside is concrete wall body, and itself has high temperature to the radiating problem of low temperature environment, and on the other hand, because the structural defect of roasting furnace side wall can leak into the limit flame path with the cold air in the environment through the gap in the brick wall for the temperature of limit flame path further reduces, and limit flame path leaks out is the leading temperature reason.
If the quality of the anode in the side bin is improved, the temperature of the side flame path is improved, and the production can be realized only by increasing the jet combustion amount of natural gas in the side flame path, but the roasting energy consumption is increased, and the production cost of the anode is increased. The invention provides a side wall structure of a roasting furnace aiming at two factors causing low temperature of a side flame path of the roasting furnace, which not only reduces the loss of external heat transfer of the side flame path, but also prevents external cold air from leaking in.
Disclosure of Invention
In order to solve the technical problem, the invention provides a side wall structure of a roasting furnace, which reduces the heat dissipation loss of a side flame path and improves the internal temperature of the side flame path by changing the side wall structure of the roasting furnace.
The specific technical scheme is as follows:
the side wall structure of the roasting furnace is characterized in that the outer part of the roasting furnace is surrounded by a concrete outer wall, the side wall structure further comprises a material box and a flame path, the material box comprises a side material box and a middle material box, the flame path comprises a side flame path and a middle flame path, and clay brick layers are built outside the side flame path and the middle flame path; a side wall structure outside the side flame path is manually divided into two areas by adopting a special-shaped side flame path furnace top block; the inner side of the concrete outer wall is sequentially provided with a light insulating brick layer, a high-strength insulating board layer, a light insulating brick layer and a high-strength insulating board layer, and the top of the composite insulating layer is covered by the light insulating brick layer; the side flame paths are positioned at the periphery of the middle flame path and close to the composite heat-insulating layer, a side material box is arranged between each side flame path and the middle flame path, and an intermediate material box is arranged between every two adjacent middle flame paths; the side flue and the top of the middle flue are respectively a side flue top block and a middle flue top block, the middle flue top block is a top block main body, the side flue top block comprises a top block main body and side flue top block side wings, the side flue top block side wings and the side flue top block main body are integrally cast and are attached to the inner side of a composite heat insulation layer, the inner side of the composite heat insulation layer extends downwards for a certain length, clay brick layers are built on the lower parts of the side wings of the side flue top block, and the side flue top block side wings and the side flue top block main body wrap the top of an outer wall clay brick layer; the side flame path and the middle flame path heat the anode in the material box.
And a high-strength heat-insulating plate layer is additionally arranged between a space formed by the side flue furnace top block side wing and the side flue furnace top block main body integrally and an outer wall clay brick layer.
And the length of the downward extension of the side wing of the side flue furnace top block attached to the inner side of the composite heat-insulating layer is not less than 1/2 of the height of the side flue.
The high-strength heat-insulation plate layer in the composite heat-insulation layer is not more than 1/3 of the thickness of the composite heat-insulation layer.
And the side wings of the side flue furnace top block and the main body corner parts of the side flue furnace top block are coated with angle steel.
The top of the flame path is a flame hole which is covered by a flame hole cover.
The light insulating brick layer on the top of the composite insulating layer inclines from the inner side to one side of the concrete outer wall.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention reduces the heat dissipation loss of the side flame path and improves the internal temperature of the side flame path by changing the side wall structure of the roasting furnace. The high-strength heat insulation board is comprehensively matched and used, so that the external heat transfer of the side flame path can be reduced, and cold air can be prevented from leaking into the side flame path from a gap of a side wall of the roasting furnace, so that the temperature of the side flame path of the roasting furnace is increased under the condition of not increasing the energy consumption, and the quality of the anode carbon block in the side material box is finally improved.
The length of the side wings of the side flue furnace top block, which are attached to the inner side of the composite heat-insulating layer and extend downwards, is not lower than 1/2 of the height of the side flue, so that the side wings of the side flue furnace top block and the main body of the side flue furnace top block are integrally poured, one side of the attached composite heat-insulating layer extends downwards for a certain length, a clay brick layer is built on the lower parts of the side wings of the side flue furnace top block, and the building stability of the side wings of the side flue furnace top block and the main body of the side flue furnace top block is ensured. And both sides of the side wing of the side flue furnace top block are high-strength heat-insulating plate layers, so that the airtightness of both sides of the side wing of the side flue furnace top block is ensured. And angle steel is additionally arranged at the side wing of the side flue furnace top block and the corner part of the main body of the side flue furnace top block to protect the corner part. The fire hole at the top of the fire channel is covered by a fire hole cover, so that high-temperature smoke in the fire channel is prevented from flowing outwards. The fire hole is used for measuring temperature or spraying fuel and is covered by a fire hole cover when not in use.
Drawings
FIG. 1 is a schematic side view, in longitudinal section, of a sidewall construction of a calciner according to the invention;
in the figure, 1 — concrete outer wall; 2-a side bin; 3, an intermediate bin; 4-side flame path furnace top block; 5-middle flame path furnace top block; 6-middle flame path; 7-clay brick layer; 8-high-strength insulation board layer; 9-light insulating brick layer; 10-side flame path furnace top block side wing; 11-a roof block body; 12-side flame path; 13-fire hole cover; 14-outer wall clay brick layer; and 15, angle steel.
Detailed Description
The invention is described in detail below with reference to the drawings, but the scope of the invention is not limited by the drawings.
FIG. 1 is a schematic side view in longitudinal section of a sidewall construction of a roaster according to the present invention, as shown: the side wall structure of the roasting furnace is characterized in that the outer part of the roasting furnace is surrounded by a concrete outer wall 1, the side wall structure further comprises a feed box and a flame path, the feed box comprises a side feed box 2 and an intermediate feed box 3, the flame path comprises a side flame path 12 and an intermediate flame path 6, and clay brick layers 7 are arranged outside the side flame path 12 and the intermediate flame path 6; a side wall structure outside the side flame path is manually divided into two areas by adopting a special-shaped side flame path furnace top block 4; the inner side of the concrete outer wall 1 is sequentially provided with four composite heat-insulating layers, namely a light heat-insulating brick layer 9, a high-strength heat-insulating plate layer 8, the light heat-insulating brick layer 9 and the high-strength heat-insulating plate layer 8, and the top of each composite heat-insulating layer is covered by the light heat-insulating brick layer 9 in a masonry mode; the side flame paths 12 are positioned at the periphery of the middle flame paths 6 and close to the composite heat-insulating layer, the edge material box 2 is arranged between each side flame path 12 and each middle flame path 6, and the middle material box 3 is arranged between every two adjacent middle flame paths 6; the top of the side flame path 12 and the top of the middle flame path 6 are respectively a side flame path furnace top block 4 and a middle flame path furnace top block 5, the middle flame path furnace top block 5 is a furnace top block main body 11, the side flame path furnace top block 4 comprises a furnace top block main body 11 and a side flame path furnace top block side wing 10, the side flame path furnace top block side wing 10 and the side flame path furnace top block main body 11 are integrally cast and are attached to the inner side of the composite heat insulation layer to extend downwards for a certain length, a clay brick layer 7 is built on the lower portion of the side flame path furnace top block side wing 10, and the side flame path furnace top block side wing 10 and the side flame path furnace top block main body 11 wrap the top of the outer wall clay brick layer 14; the side flame path 12 and the middle flame path 6 heat the anode in the material box.
A high-strength heat preservation plate layer 8 is additionally arranged between a space formed by the side flue furnace top block side wings 10 and the side flue furnace top block main body 11 integrally and an outer wall clay brick layer 14. The length of the side wing 10 of the side flue furnace top block, which is attached to the inner side of the composite heat-insulating layer and extends downwards, is not less than 1/2 of the height of the side flue 12. And the high-strength heat-insulation board layer 8 in the composite heat-insulation layer does not exceed 1/3 of the thickness of the composite heat-insulation layer. The side wings 10 of the side flame path furnace top block and the main body 11 of the side flame path furnace top block are coated with angle steel. The top of the flame path is provided with a flame hole which is covered by a flame hole cover 13. The light insulating brick layer on the top of the composite insulating layer inclines from the inner side to one side of the concrete outer wall.
During the operation, use limit flame path roof piece 4 to mark off two regions with the outside calcination stove side wall structure of limit flame path, wherein, the enclosed construction who forms between limit flame path roof piece flank 10 and the limit flame path 12 can stop outside cold air from the gap of calcination stove concrete outer wall 1 and leak into in the limit flame path 12, also through the high strength insulation board layer 8 and the light insulating brick layer 9 of rational arrangement in the composite insulation layer, reduces the heat transfer of limit flame path 12 to the environment.
Claims (7)
1. The utility model provides a roast burning furnace side wall structure, the outside of burning furnace is enclosed by the concrete outer wall to the burning furnace, still includes workbin and flame path, its characterized in that: the feed box comprises a rim charge box and an intermediate feed box, the flame path comprises a rim flame path and an intermediate flame path, and the outer parts of the rim flame path and the intermediate flame path are built by clay brick layers; a side wall structure outside the side flame path is manually divided into two areas by adopting a special-shaped side flame path furnace top block; the inner side of the concrete outer wall is sequentially provided with a light insulating brick layer, a high-strength insulating board layer, a light insulating brick layer and a high-strength insulating board layer, and the top of the composite insulating layer is covered by the light insulating brick layer; the side flame paths are positioned at the periphery of the middle flame path and close to the composite heat-insulating layer, a side material box is arranged between each side flame path and the middle flame path, and an intermediate material box is arranged between every two adjacent middle flame paths; the side flue and the top of the middle flue are respectively a side flue top block and a middle flue top block, the middle flue top block is a top block main body, the side flue top block comprises a top block main body and side flue top block side wings, the side flue top block side wings and the side flue top block main body are integrally cast and are attached to the inner side of a composite heat insulation layer, the inner side of the composite heat insulation layer extends downwards for a certain length, clay brick layers are built on the lower parts of the side wings of the side flue top block, and the side flue top block side wings and the side flue top block main body wrap the top of an outer wall clay brick layer; the side flame path and the middle flame path heat the anode in the material box.
2. A roaster side wall structure according to claim 1, wherein: and a high-strength heat-insulating plate layer is additionally arranged between a space formed by the side flue furnace top block side wing and the side flue furnace top block main body integrally and an outer wall clay brick layer.
3. A roaster side wall structure according to claim 1, wherein: and the length of the downward extension of the side wing of the side flue furnace top block attached to the inner side of the composite heat-insulating layer is not less than 1/2 of the height of the side flue.
4. A roaster side wall structure according to claim 1, wherein: the high-strength heat-insulation plate layer in the composite heat-insulation layer is not more than 1/3 of the thickness of the composite heat-insulation layer.
5. A sidewall structure for a calciner according to claim 1, characterised in that: and the side flue furnace top block side wing and the side flue furnace top block main body corner part are coated with angle steel.
6. A roaster side wall structure according to claim 1, wherein: the top of the flame path is a flame hole which is covered by a flame hole cover.
7. A roaster side wall structure according to claim 1, wherein: the light insulating brick layer on the top of the composite insulating layer inclines from the inner side to one side of the concrete outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110701456.0A CN113390262B (en) | 2021-06-24 | 2021-06-24 | Side wall structure of roasting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110701456.0A CN113390262B (en) | 2021-06-24 | 2021-06-24 | Side wall structure of roasting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN113390262A CN113390262A (en) | 2021-09-14 |
| CN113390262B true CN113390262B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110701456.0A Active CN113390262B (en) | 2021-06-24 | 2021-06-24 | Side wall structure of roasting furnace |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892424U (en) * | 2010-12-09 | 2011-07-06 | 二十三冶建设集团有限公司 | Side wall structure of roasting furnace |
| CN203216272U (en) * | 2012-12-27 | 2013-09-25 | 河南鑫诚耐火材料股份有限公司 | Conductive heat preservation type flame path wall structure of anode baking furnace |
| CN204063957U (en) * | 2014-08-26 | 2014-12-31 | 浙江省嵊州市崇仁建筑材料厂 | Comprise the open-type anode roasting furnace week side big-wall of outer heat insulation layer |
| CN209295679U (en) * | 2018-12-07 | 2019-08-23 | 山东平阴丰源炭素有限责任公司 | A kind of calcining carbon furnace body abutment wall structure |
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| CN113390262A (en) | 2021-09-14 |
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