CN211823839U - Heat insulation type anode roasting furnace flame path wall structure - Google Patents
Heat insulation type anode roasting furnace flame path wall structure Download PDFInfo
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- CN211823839U CN211823839U CN201922126475.6U CN201922126475U CN211823839U CN 211823839 U CN211823839 U CN 211823839U CN 201922126475 U CN201922126475 U CN 201922126475U CN 211823839 U CN211823839 U CN 211823839U
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Abstract
The utility model relates to a heat-insulating anode roasting furnace flame path wall structure. The flame path wall structure in the prior art has poor thermal conductivity and poor heat preservation effect, so that the temperature of a furnace surface is high, the heat loss is fast, when the anode carbon block is roasted, the temperature in the flame path is as high as about 1200 ℃, the temperature of the furnace surface is as high as more than 90 ℃, the radiation of high temperature received by an operator is large, the fuel consumption is increased due to a large amount of heat loss, the production cost of the carbon block is increased, and the service life of the flame path wall is shortened. The utility model discloses a constitution includes: firebrick (3), firebrick be the high-alumina firebrick that has the tongue and groove and form whole flame path wall with the high temperature clay bonding together, flame path wall upper portion install compound thermal-insulated type apron brick (2), compound thermal-insulated furnace face apron (1) are installed through the mode that the recess was inlayed to compound thermal-insulated type apron brick top. The utility model is used for heat-insulated type anode roasting furnace flame path wall structure.
Description
The technical field is as follows:
the utility model relates to a carbon anode bakes burning furnace flame path wall technical field over a slow fire for electrolytic aluminum, concretely relates to heat-insulated type anode bakes burning furnace flame path wall structure over a slow fire.
Background art:
the top furnace face cover plate technology of the flue wall of the roasting furnace in China is made of common heavy castable, fuel is combusted in the flue, heat is transferred to anode carbon blocks in a flue side bin through high-alumina refractory bricks, and the top furnace face cover plate is arranged on the top of the flue side bin. The flame path wall structure in the prior art has poor thermal conductivity and poor heat preservation effect, so that the temperature of a furnace surface is high, the heat loss is fast, when the anode carbon block is roasted, the temperature in the flame path is as high as about 1200 ℃, the temperature of the furnace surface is as high as more than 90 ℃, the radiation of high temperature received by an operator is large, the fuel consumption is increased due to a large amount of heat loss, the production cost of the carbon block is increased, and the service life of the flame path wall is shortened.
The utility model has the following contents:
the utility model aims at providing a heat-insulating type anode roasting furnace flame path wall structure.
The above purpose is realized by the following technical scheme:
a kind of heat insulation type anode bakes the wall structure of fire channel over a slow fire, it makes up and includes: the fireproof brick is a high-aluminum fireproof brick with concave-convex grooves and is adhered together by high-temperature cement to form an integral fire wall, a composite heat insulation type cover plate brick is installed on the upper portion of the fire wall, and a composite heat insulation furnace face cover plate is installed above the composite heat insulation type cover plate brick in a groove embedding mode.
The heat insulation type anode roasting furnace flame path wall structure is characterized in that high-alumina bricks are arranged outside and at the bottom of the composite heat insulation type cover plate brick, a ceramic fiber plate is arranged in the middle of the composite heat insulation type cover plate brick, protrusions on the upper portions of two ends of the composite heat insulation type cover plate brick are combined with grooves below the composite heat insulation furnace surface cover plate, and are adhered through high-temperature cement, so that an integral structure is formed, the grooves on the lower portions of two ends of the composite heat insulation type cover plate brick are mutually occluded with the protrusions above the refractory bricks, and are mutually adhered through the high-temperature cement after being sintered.
The composite heat-insulation furnace face cover plate is formed by combining high-strength castable and heat-insulation ceramic fiber plates, a burner mounting hole is formed in the middle of the composite heat-insulation furnace face cover plate, the high-strength castable structure is arranged around the burner mounting hole and forms an integral structure with the composite heat-insulation furnace face cover plate, and the ceramic fiber plates of 500 multiplied by 310 multiplied by 220 are filled in the middle of the composite heat-insulation furnace face cover plate.
Has the advantages that:
1. the utility model relates to a heat-insulating type anode roasting furnace flame path wall structure, this structure can accelerate the conduction of flame path wall, improves the heat absorption of charcoal piece goods, improves the quality of positive pole charcoal piece, shortens combustion cycle, reduces fuel consumption, guarantees that the whole difference in temperature of flame path wall reduces, makes the face temperature of a furnace reduce, reduces heat radiation, improves production efficiency.
The structure of the utility model mainly plays the role of heat preservation and heat insulation, can reduce the ambient temperature of the furnace surface and reduce the fuel consumption.
The utility model discloses a heat-insulated type anode roasting furnace flame path wall structure accelerates the interior hot conduction of flame path wall, improves heat accumulation capacity in the workbin, reduces fuel consumption, makes flame path and workbin upper and lower difference in temperature can control at the combustion state of an ideal, mainly can effectual reduction furnace face temperature.
The utility model discloses a top is the compound thermal-insulated furnace face apron in flame path wall top, and the centre is the compound thermal-insulated type apron brick of flame path wall, and the lower part is ordinary blast furnace resistant firebrick, builds by laying bricks or stones with high temperature clay and becomes a holistic flame path wall structure, and the furnace face apron lower extreme that thermal-insulated type anode roasting furnace flame path wall is equipped with recess and the mutual interlock of compound thermal-insulated type apron brick upper end tongue, and compound thermal-insulated type apron brick lower extreme is establishedThe grooves are mutually occluded with the convex grooves of the high-temperature refractory bricks and are built by high-temperature cement mortar to form an integral flame path wall, wherein the rest parts of the composite heat-insulating furnace surface cover plate except the middle burner mounting hole are made of ceramic fiber plates, and the theoretical volume density of the ceramic fiber plates is 159kg/m3The heat conductivity coefficient is less than or equal to 0.213 w/(m.k), the middle part of the composite heat insulation type cover plate brick is also made of ceramic fiber boards, the damage of heat radiation to equipment and personnel can be reduced, and the production efficiency is improved.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side sectional view of fig. 1.
The specific implementation mode is as follows:
example 1:
a kind of heat insulation type anode bakes the wall structure of fire channel over a slow fire, it makes up and includes: the fireproof brick is a high-aluminum fireproof brick with concave-convex grooves and is adhered together by high-temperature cement to form an integral fire path wall, a composite heat insulation type cover plate brick 2 is installed on the upper portion of the fire path wall, and a composite heat insulation furnace face cover plate 1 is installed above the composite heat insulation type cover plate brick in a groove embedding mode.
Example 2:
according to embodiment 1, the outer part and the bottom of the composite heat insulation type cover plate brick are high-alumina bricks, the middle of the composite heat insulation type cover plate brick is made of ceramic fiber plates, the protrusions at the upper parts of the two ends of the composite heat insulation type cover plate brick are matched with the grooves below the composite heat insulation furnace face cover plate and are adhered by high-temperature cement to form an integral structure, and the grooves at the lower parts of the two ends of the composite heat insulation type cover plate brick are mutually occluded with the protrusions above the refractory bricks and are mutually adhered by the high-temperature cement after being sintered at high temperature.
Example 3:
according to the flame path wall structure of the heat insulation type anode roasting furnace in the embodiment 1 or 2, the composite heat insulation furnace surface cover plate is formed by combining a high-strength castable and a heat insulation ceramic fiber plate, a burner mounting hole 4 is formed in the middle of the composite heat insulation furnace surface cover plate, the high-strength castable structure is arranged around the burner mounting hole and forms an integral structure with the composite heat insulation furnace surface cover plate, and the ceramic fiber plate of 500 × 310 × 220 is filled in the middle of the composite heat insulation furnace surface cover plate;
the top of the flame path wall structure of the heat-insulation type anode roasting furnace is built by the composite heat-insulation furnace face cover plate, the external structure of the flame path wall structure is made of common heavy castable, the internal structure is made of ceramic fiber plates, the lower end of the flame path wall structure is provided with a groove, the flame path wall structure and the upper convex groove of the composite heat-insulation type cover plate brick at the lower layer are mutually occluded to form an integral structure, the integral structure is made of external high-alumina bricks and ceramic fiber plates with the middle and upper parts of 40mm, and the integral heat-insulation structure is combined with the ceramic fiber plates in the composite heat-insulation furnace face cover plate to prevent heat in the flame path wall from going upwards to influence the integral temperature of the furnace; the firebricks are high-alumina firebricks forming an integral flame path wall, the upper convex groove is mutually occluded with the groove of the composite heat insulation type cover plate brick, and the firebricks are mutually bonded together after high-temperature cement is sintered at high temperature;
the volume density of the composite heat-insulating furnace surface cover plate castable is not more than 2.3g/cm3The theoretical bulk density of the middle ceramic fiber board is 159kg/m3The heat conductivity coefficient is less than or equal to 0.213 w/(m.k);
the heat conductivity coefficient of the composite heat insulation type cover plate brick is not lower than 2.2W/m.k, and the theoretical volume density of the refractory material is 159kg/m3The heat conductivity coefficient is less than or equal to 0.213 w/(m.k);
the heat conductivity coefficient of the high-alumina refractory brick is not lower than 2.2W/m.k.
Claims (3)
1. A kind of heat insulation type anode bakes the wall structure of fire channel over a slow fire, it makes up and includes: the firebrick, characterized by: the fireproof bricks are high-aluminum fireproof bricks with concave-convex grooves and are adhered together by high-temperature cement to form an integral fire path wall, the upper part of the fire path wall is provided with a composite heat insulation type cover plate brick, and a composite heat insulation furnace face cover plate is arranged above the composite heat insulation type cover plate brick in a groove embedding mode.
2. The flame path wall structure of the heat insulation type anode roasting furnace according to claim 1, wherein: the composite heat insulation type cover plate brick is characterized in that high-alumina bricks are arranged outside and at the bottom of the composite heat insulation type cover plate brick, a ceramic fiber plate is arranged in the middle of the composite heat insulation type cover plate brick, convex grooves in the upper portions of two ends of the composite heat insulation type cover plate brick are combined with grooves in the lower portion of a composite heat insulation furnace face cover plate, and are adhered through high-temperature cement gum to form an integral structure, and the grooves in the lower portions of two ends of the composite heat insulation type cover plate brick are mutually occluded with protrusions above refractory bricks and are mutually adhered through the high-temperature cement gum after being sintered at high temperature.
3. The flame path wall structure of the heat insulation type anode roasting furnace according to claim 2, wherein: the composite heat insulation furnace face cover plate is characterized in that a combustor mounting hole is formed in the middle of the composite heat insulation furnace face cover plate, a high-strength castable structure is arranged on the periphery of the combustor mounting hole and forms an integral structure with the composite heat insulation furnace face cover plate, and the middle of the composite heat insulation furnace face cover plate is filled with 500 x 310 x 220 ceramic fiber plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922126475.6U CN211823839U (en) | 2019-12-02 | 2019-12-02 | Heat insulation type anode roasting furnace flame path wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922126475.6U CN211823839U (en) | 2019-12-02 | 2019-12-02 | Heat insulation type anode roasting furnace flame path wall structure |
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| Publication Number | Publication Date |
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| CN211823839U true CN211823839U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922126475.6U Active CN211823839U (en) | 2019-12-02 | 2019-12-02 | Heat insulation type anode roasting furnace flame path wall structure |
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