CN217403141U - Secondary combustion system for smelting secondary aluminum - Google Patents
Secondary combustion system for smelting secondary aluminum Download PDFInfo
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- CN217403141U CN217403141U CN202221334326.4U CN202221334326U CN217403141U CN 217403141 U CN217403141 U CN 217403141U CN 202221334326 U CN202221334326 U CN 202221334326U CN 217403141 U CN217403141 U CN 217403141U
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Abstract
The utility model discloses a secondary combustion system that secondary aluminum smelted relates to secondary aluminum smelting equipment technical field, and it can partially solve the fire hazard potential safety hazard that the aluminium scrap melting technology among the prior art has at least, bring environmental pollution and health risk and high operation maintenance cost's problem. The secondary combustion system for smelting secondary aluminum comprises a secondary aluminum smelting furnace and is characterized in that the secondary aluminum smelting furnace comprises an A-type secondary aluminum smelting furnace for smelting waste aluminum and a B-type secondary aluminum smelting furnace for secondary combustion black smoke according to the purpose mark, and at least one of the A-type secondary aluminum smelting furnace and the B-type secondary aluminum smelting furnace is arranged; the secondary combustion channel is communicated with the A-type secondary aluminum smelting furnace and the B-type secondary aluminum smelting furnace.
Description
Technical Field
The utility model relates to a secondary aluminum melting equipment technical field, concretely relates to secondary combustion system that secondary aluminum smelted.
Background
At present, the waste aluminum regeneration industry mainly uses a combustion mode to melt so as to achieve the purpose of recycling, a large amount of black smoke is generated in the waste aluminum melting process, and the existing treatment mode is that the waste aluminum is discharged into the atmosphere after being introduced into a dust removal device.
The existing aluminum scrap melting process has at least the following problems: firstly, fire safety hazards: in the smelting process of the aluminum scrap, grease, paint and plastics contained on the surface of the aluminum scrap can be combusted in a high-temperature environment, and meanwhile, due to the limitation of the space in the furnace and the low content in the furnace, a large amount of combustible carbon monoxide exists in black smoke, so that fire hazard safety is caused; secondly, environmental pollution and health risks: because of the chlorine-containing compounds possibly contained in the waste aluminum, under the condition that the temperature of a hearth is maintained at 700-; thirdly, the operation and maintenance cost is high because the dust in the black smoke can lead to the dust collecting equipment to change and maintain the frequency high, simultaneously, because have unforeseeable material (such as tin steam, aluminium steam or other impurity) in the aluminium scrap, block up the heat accumulator easily in the heat transfer process of heat accumulator, improve the operation and maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a secondary combustion system that secondary aluminum smelted for solve the fire hazard potential safety hazard that the aluminium scrap melting process among the prior art has, bring environmental pollution and healthy risk and high operation maintenance cost's problem.
In order to solve the technical problem, the utility model discloses a following scheme:
one aspect of the utility model provides a secondary combustion system that regeneration aluminium was smelted, including the regeneration aluminium smelting furnace, its characterized in that, the regeneration aluminium smelting furnace includes the A class regeneration aluminium smelting furnace that is used for smelting the aluminium scrap and the B class regeneration aluminium smelting furnace that is used for the black cigarette of postcombustion according to the usage mark, and A class regeneration aluminium smelting furnace and B class regeneration aluminium smelting furnace all have one at least; the secondary combustion channel is communicated with the A-type secondary aluminum smelting furnace and the B-type secondary aluminum smelting furnace.
Optionally, the type a secondary aluminum smelting furnace and the type B secondary aluminum smelting furnace have the same structure, and the type a secondary aluminum smelting furnace and the type B secondary aluminum smelting furnace can be converted into categories according to states of smelting waste aluminum or burning black smoke in the type a secondary aluminum smelting furnace and the type B secondary aluminum smelting furnace.
Optionally, the secondary aluminum smelting furnace comprises a sealed furnace door, and the internal furnace pressure of the class B secondary aluminum smelting furnace is controlled by the opening degree of the sealed furnace door.
Optionally, the recycled aluminum smelting furnace further comprises a spare class C recycled aluminum smelting furnace according to a use mark, and the class C recycled aluminum smelting furnace is communicated with the class a recycled aluminum smelting furnace and the class B recycled aluminum smelting furnace through the secondary combustion channel.
Optionally, the structure of the C-type recycled aluminum smelting furnace is the same as that of the a-type recycled aluminum smelting furnace and the B-type recycled aluminum smelting furnace, and the a-type recycled aluminum smelting furnace, the B-type recycled aluminum smelting furnace and the C-type recycled aluminum smelting furnace can be mutually transformed into categories according to the smelting waste aluminum state or the combustion black smoke state or the standby idle state inside the a-type recycled aluminum smelting furnace, the B-type recycled aluminum smelting furnace and the C-type recycled aluminum smelting furnace.
Optionally, a burner and an oxygen supplementing spray gun are arranged on the side wall of the secondary aluminum smelting furnace, and the burner and the oxygen supplementing spray gun of the B-type secondary aluminum smelting furnace are used for secondary combustion of black smoke.
Optionally, the burner comprises a first burner and a second burner which are arranged on the side wall of the secondary aluminum smelting furnace, the first burner is arranged above the second burner, and the oxygen supplementing lance is arranged between the first burner and the second burner.
Optionally, the oxygen supplementing spray gun is arranged opposite to the first burner and the second burner.
Optionally, a temperature sensor for measuring temperature is further arranged in the secondary aluminum smelting furnace.
Another aspect of the utility model provides a secondary combustion technology that secondary aluminum smelted specifically includes following steps:
step S1: acquiring and judging whether the black smoke content in the A-type secondary aluminum smelting furnace exceeds the standard or not;
step S2: if the amount of the black smoke exceeds the standard in the step S1, starting a sealed furnace door of the B-type secondary aluminum smelting furnace, and leading the black smoke in the step S1 to be introduced into the B-type secondary aluminum smelting furnace through a secondary combustion channel;
step S3: and (4) starting a burner and an oxygen supply spray gun of the B-type secondary aluminum smelting furnace in the step S2, and performing secondary combustion on the black smoke introduced into the furnace.
Optionally, the step S1 is preceded by a step S0: and starting an oxygen supplementing spray gun of the A-type secondary aluminum smelting furnace to preliminarily combust the black smoke in the A-type secondary aluminum smelting furnace, wherein the black smoke quantity judged in the step S1 is the residual black smoke quantity after the preliminary combustion of the black smoke in the step S0.
Optionally, after the step S3, the method further includes the following steps:
step S4: acquiring and judging whether the black smoke volume after secondary combustion in the step S3 still exceeds the standard or not;
step S5: if the black smoke amount in the step S1 or the step S3 still exceeds the standard, starting a sealing furnace door of a C-type secondary aluminum smelting furnace to convert the furnace door into the B-type secondary aluminum smelting furnace;
step S6: and starting the burner and the oxygen supplementing spray gun of the B-type secondary aluminum smelting furnace converted in the step S5, and combusting the black smoke introduced into the burner again.
Optionally, before changing the class C secondary aluminum smelting furnace to the class B secondary aluminum smelting furnace in step S5, at least the following conditions need to be satisfied: the sealed furnace door of the group B secondary aluminum smelting furnace in the step S3 maintains the maximum opening degree.
The utility model discloses beneficial effect who has:
the utility model discloses a secondary combustion system that regeneration aluminium smelted, including the regeneration aluminium smelting furnace, its characterized in that, the regeneration aluminium smelting furnace includes the A class regeneration aluminium smelting furnace that is used for smelting the aluminium scrap and the B class regeneration aluminium smelting furnace that is used for the black cigarette of postcombustion according to the usage mark, and A class regeneration aluminium smelting furnace and B class regeneration aluminium smelting furnace all have one at least; the secondary combustion channel is used for communicating the A-type secondary aluminum smelting furnace with the B-type secondary aluminum smelting furnace.
The function is as follows: through setting up an at least A class regeneration aluminum smelting furnace and an at least B class regeneration aluminum smelting furnace to set up the postcombustion passageway and communicate two types of regeneration aluminum smelting furnaces, can be so that A class regeneration aluminum smelting furnace smelt behind the aluminium scrap, discharge into B class regeneration aluminum smelting furnace through the postcombustion passageway with the surplus black cigarette after its stove burning, and carry out the postcombustion to surplus black cigarette in B class regeneration aluminum smelting furnace. Through the secondary combustion of the residual black smoke, the carbon monoxide in the residual black smoke can be combusted in the B-type secondary aluminum smelting furnace to release heat, and harmful gases such as dioxin are cracked through the burnt harmful gases, and the amount of the black smoke is reduced, so that the problems of fire safety hazards, environmental pollution, health risks and high operation and maintenance cost of the waste aluminum melting process in the prior art can be solved.
Drawings
Fig. 1 is a schematic top view of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
fig. 3 is a schematic flow chart of a second embodiment of the present invention.
Description of reference numerals: 1-secondary combustion channel, 2-secondary aluminum smelting furnace, 21-A class secondary aluminum smelting furnace, 22-B class secondary aluminum smelting furnace, 23-C class secondary aluminum smelting furnace, 3-oxygenating spray gun, 4-first burner, 5-second burner and 6-sealed furnace door.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is explained in detail below with reference to the figures and with reference to exemplary embodiments:
the first embodiment is as follows:
as shown in fig. 1 and 2, an aspect of the present invention provides a secondary combustion system for secondary aluminum smelting, including a secondary aluminum smelting furnace 2, characterized in that the secondary aluminum smelting furnace 2 includes a class a secondary aluminum smelting furnace 21 for smelting waste aluminum and a class B secondary aluminum smelting furnace 22 for post-combusting black smoke according to usage marks, and each of the class a secondary aluminum smelting furnace 21 and the class B secondary aluminum smelting furnace 22 has at least one; the secondary combustion channel 1 is used for communicating the A-type secondary aluminum smelting furnace 21 with the B-type secondary aluminum smelting furnace 22.
Through setting up an at least A class secondary aluminum smelting furnace 21 and an at least B class secondary aluminum smelting furnace 22 to set up postcombustion passageway 1 and communicate two kinds of secondary aluminum smelting furnace 2, can make after A class secondary aluminum smelting furnace 21 smelts aluminium scrap, discharge into B class secondary aluminum smelting furnace 22 through postcombustion passageway 1 with the remaining black cigarette after its stove burning, and carry out the postcombustion to remaining black cigarette in B class secondary aluminum smelting furnace 22. Through the secondary combustion of the residual black smoke, the carbon monoxide in the residual black smoke can be combusted in the B-type secondary aluminum smelting furnace 22 to release heat, and harmful gases such as dioxin are cracked through the high temperature of the combustion of the carbon monoxide, and the amount of the black smoke is reduced, so that the problems of fire hazard, environmental pollution, health risks and high operation and maintenance cost of the waste aluminum melting process in the prior art can be solved. In this embodiment, the black smoke introduced into the class a secondary aluminum smelting furnace 21 and the class B secondary aluminum smelting furnace 22 is the residual black smoke after the preliminary combustion.
Preferably, the group a secondary aluminum smelting furnace 21 and the group B secondary aluminum smelting furnace 22 have the same structure, and the group a secondary aluminum smelting furnace 21 and the group B secondary aluminum smelting furnace 22 can be switched to each other according to the smelting waste aluminum or the combustion black smoke state in the interior thereof. In this embodiment, a class regeneration aluminum smelting furnace 21 is the same with B class regeneration aluminum smelting furnace 22's structure, and can be according to its internal state category of converting mutually, can be so that more nimble in the actual production of regeneration aluminum, simultaneously, can put into the higher B class regeneration aluminum smelting furnace 22 of the temperature after the burning with the aluminium scrap piece that needs to smelt, make it turn into A class regeneration aluminum smelting furnace 21, thereby the heat waste after the burning of black cigarette in B class regeneration aluminum smelting furnace 22 has been avoided, the energy consumption is reduced.
Specifically, the secondary aluminum smelting furnace 2 includes a sealed furnace door 6, and the internal furnace pressure of the class B secondary aluminum smelting furnace 22 is controlled by the opening degree of the sealed furnace door 6 thereof. After the sealing furnace door 6 of the B-type secondary aluminum smelting furnace 22 is opened, the furnace pressure of the A-type secondary aluminum smelting furnace 21 is higher than that of the B-type secondary aluminum smelting furnace 22, so that black smoke in the A-type secondary aluminum smelting furnace 21 enters the B-type secondary aluminum smelting furnace through the secondary combustion channel 1, the larger the opening degree of the sealing furnace door 6 of the B-type secondary aluminum smelting furnace 22 is, the smaller the furnace pressure in the B-type secondary aluminum smelting furnace is correspondingly, and the larger the flow rate of the black smoke introduced into the B-type secondary aluminum smelting furnace 22 in the A-type secondary aluminum smelting furnace 21 is.
Specifically, a burner and an oxygen supplementing spray gun 3 are arranged on the side wall of the secondary aluminum smelting furnace 2, and the burner and the oxygen supplementing spray gun 3 of the B-type secondary aluminum smelting furnace 22 are used for secondary combustion of black smoke. Oxygen can be introduced into the B-type secondary aluminum smelting furnace 22 through the burner and the oxygen supplementing spray gun 3, and the oxygen is mixed with black smoke in the furnace and then ignited, so that the furnace temperature is raised or maintained, the gas consumption for smelting secondary aluminum is reduced, and the purpose of energy conservation is achieved.
In this embodiment, the secondary aluminum smelting furnace further comprises a temperature sensor arranged on the side wall of the secondary aluminum smelting furnace 2, and the temperature sensor in this embodiment is a common PT temperature sensor. Referring to fig. 1, the burner includes a first burner 4 and a second burner 5 provided on the side wall of a secondary aluminum smelting furnace 2. The oxygen supply lance 3 is disposed to face the first burner 4 and the second burner 5.
Preferably, the secondary aluminum smelting furnace 2 further comprises a spare group C secondary aluminum smelting furnace 23 according to the use mark, and the group C secondary aluminum smelting furnace 23 is communicated with the group a secondary aluminum smelting furnace 21 and the group B secondary aluminum smelting furnace 22 through the secondary combustion channel 1. By providing the group C secondary aluminum melting furnace 23 in an idle state, the fault tolerance of the present embodiment can be increased. When the sealing furnace door 6 of the secondary aluminum smelting furnace 2 is in a closed state, black smoke cannot enter the interior of the secondary aluminum smelting furnace, and meanwhile, when the waste aluminum blocks are not fed into the interior of the secondary aluminum smelting furnace, the secondary aluminum smelting furnace 2 is a standby C-type secondary aluminum smelting furnace 23 in an idle state.
Specifically, the structure of the group C secondary aluminum smelting furnace 23 is the same as the structures of the group a secondary aluminum smelting furnace 21 and the group B secondary aluminum smelting furnace 22, and the group a secondary aluminum smelting furnace 21, the group B secondary aluminum smelting furnace 22 and the group C secondary aluminum smelting furnace 23 can be mutually switched in types according to the smelting waste aluminum state or the burning black smoke state or the standby idle state inside the furnace. Through setting up C type regeneration aluminum smelting furnace 23, and A type regeneration aluminum smelting furnace 21, B type regeneration aluminum smelting furnace 22 and C type regeneration aluminum smelting furnace 23 can the interconversion class for this embodiment can adjust according to the production system and the production conditions of regeneration aluminum, improves the flexibility of system.
The beneficial effects of the present embodiment include, but are not limited to:
firstly, solving the potential safety hazard of fire; combustible substances such as carbon monoxide in the black smoke are subjected to secondary combustion in the B-type secondary aluminum smelting furnace 22, so that the fire safety hidden danger in rear-end dust removal equipment can be solved, meanwhile, the fuel gas consumption can be reduced, and the effects of energy conservation and emission reduction can be achieved.
Secondly, environmental pollution and health risks are reduced; in the process of burning black smoke in the B-type secondary aluminum smelting furnace 22, the temperature needs to be maintained at about 1200 ℃, and harmful substances such as dioxin in the black smoke can be rapidly cracked in a high-temperature environment, so that the amount of the dioxin leaked to a factory and discharged into the atmosphere is reduced, and the environmental pollution and the health risk of staff are effectively reduced.
Thirdly, the operation and maintenance cost is reduced; through carrying out secondary or many times's burning to black cigarette, can greatly reduced black cigarette's emission to reduce the operation maintenance cost of rear end dust collecting equipment.
Example two:
as shown in fig. 3, another aspect of the present invention provides a secondary combustion process for secondary aluminum smelting, specifically comprising the following steps:
step S1: acquiring and judging whether the amount of black smoke in the A-type secondary aluminum smelting furnace 21 exceeds a standard or not;
step S2: if the black smoke amount in the step S1 exceeds the standard, starting a sealing furnace door 6 of the B-type secondary aluminum smelting furnace 22, so that the black smoke in the step S1 is introduced into the B-type secondary aluminum smelting furnace 22 through a secondary combustion channel 1;
step S3: and (4) starting the burner and the oxygen supplementing spray gun 3 of the B-type secondary aluminum smelting furnace 22 in the step S2, and performing secondary combustion on the black smoke introduced into the furnace.
Specifically, the step S1 is preceded by a step S0: and starting the oxygen supplementing spray gun 3 of the A-type secondary aluminum smelting furnace 21 to perform preliminary combustion on the black smoke in the A-type secondary aluminum smelting furnace 21, wherein the black smoke amount judged in the step S1 is the residual black smoke amount after the preliminary combustion of the black smoke in the step S0.
Preferably, the step S3 is followed by the steps of:
step S4: acquiring and judging whether the black smoke volume after secondary combustion in the step S3 still exceeds the standard or not;
step S5: if the black smoke content in the A-type secondary aluminum smelting furnace 21 in the step S1 or the B-type secondary aluminum smelting furnace 22 in the step S3 still exceeds the standard, starting a sealing furnace door 6 of the C-type secondary aluminum smelting furnace 23 to convert the furnace door into the B-type secondary aluminum smelting furnace 22; the number of the B-type secondary aluminum smelting furnaces 22 can be increased by starting the sealing furnace door 6 of the C-type secondary aluminum smelting furnace 23, the combustible space of black smoke is increased, and the combustion speed of the black smoke is increased.
Step S6: the burners and the oxygen replenishment lances 3 of the group B secondary aluminum smelting furnace 22 converted in step S5 are started, and the remaining amount of black smoke introduced into the furnace is burned again. Through the spare C type secondary aluminum smelting furnace 23, can freely turn into A type secondary aluminum smelting furnace 21 or B type secondary aluminum smelting furnace 22 with it, can increase the fault-tolerant nature of system, improve better result of use.
Specifically, at least the following conditions need to be satisfied before the group C secondary aluminum smelting furnace 23 is changed to the group B secondary aluminum smelting furnace 22 in the step S5: the sealed furnace door 6 of the group B secondary aluminum smelting furnace 22 in the step S3 maintains the maximum opening degree.
The process flow of the embodiment:
firstly, a burner of the A-type secondary aluminum smelting furnace 21 is started to enable the internal temperature of the A-type secondary aluminum smelting furnace 21 to reach about 800-. In the combustion process, if black smoke exceeding a set value is generated, a sealing furnace door 6 of the B-type secondary aluminum smelting furnace 22 is started, the black smoke of the A-type secondary aluminum smelting furnace 21 enters the B-type secondary aluminum smelting furnace 22 through a secondary combustion channel 1 under the action of furnace pressure, then a burner and an oxygen supplementing spray gun 3 of the B-type secondary aluminum smelting furnace 22 are started, the black smoke introduced into the burner is subjected to secondary combustion, the furnace temperature of the B-type secondary aluminum smelting furnace 22 is maintained at about 1200 ℃, at the moment, carbon monoxide in the black smoke can be combusted as a supplementary fuel, and harmful substances such as dioxin in the black smoke can be rapidly cracked in a high-temperature environment. Under the condition that the opening degree of a sealing furnace door 6 of a B-type secondary aluminum smelting furnace 22 reaches the maximum, if the black smoke amount in the A-type secondary aluminum smelting furnace 21 or the B-type secondary aluminum smelting furnace 22 still exceeds the standard, the C-type secondary aluminum smelting furnace 23 in an idle state is started, the sealing furnace door 6 is opened, the C-type secondary aluminum smelting furnace is converted into the B-type secondary aluminum smelting furnace 22, the combustible space of the black smoke is enlarged, and further consumption of the black smoke is realized.
In summary, the following steps: the secondary combustion process of the black smoke can effectively reduce the amount of carbon monoxide in the black smoke, solves the fire safety hazard of rear-end dust removal equipment, can effectively reduce the content of harmful substances such as dioxin in the black smoke, reduces the atmospheric pollution and the health risk of workers, can effectively reduce the total amount of the black smoke, reduces the maintenance frequency of the rear-end dust removal equipment, and reduces the operation and maintenance cost.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and such changes and modifications are to be considered as within the scope of the invention.
Claims (9)
1. The secondary combustion system for secondary aluminum smelting comprises a secondary aluminum smelting furnace (2), and is characterized in that the secondary aluminum smelting furnace (2) comprises a A-type secondary aluminum smelting furnace (21) for smelting waste aluminum and a B-type secondary aluminum smelting furnace (22) for secondary combustion black smoke according to usage marks, and at least one of the A-type secondary aluminum smelting furnace (21) and the B-type secondary aluminum smelting furnace (22) is provided; the secondary combustion channel (1) is used for communicating the A-type secondary aluminum smelting furnace (21) with the B-type secondary aluminum smelting furnace (22).
2. Secondary combustion system for secondary aluminium smelting according to claim 1, characterised in that the class a secondary aluminium smelting furnace (21) and the class B secondary aluminium smelting furnace (22) are identical in structure and the class a secondary aluminium smelting furnace (21) and the class B secondary aluminium smelting furnace (22) can be mutually inverted in classification according to the smelting aluminium scrap or burning black smoke conditions inside them.
3. Secondary combustion system for secondary aluminium smelting according to claim 1, characterized in that the secondary aluminium smelting furnace (2) comprises sealed furnace doors (6), the internal furnace pressure of the class B secondary aluminium smelting furnace (22) being controlled by the opening of its sealed furnace doors (6).
4. Secondary combustion system for secondary aluminium smelting according to claim 1, characterized in that the secondary aluminium smelting furnace (2) according to the usage label further comprises a spare class C secondary aluminium smelting furnace (23), the class C secondary aluminium smelting furnace (23) communicating with the class a secondary aluminium smelting furnace (21), the class B secondary aluminium smelting furnace (22) through the secondary combustion channel (1).
5. Secondary combustion system for secondary aluminium smelting according to claim 4, characterized in that the group C secondary aluminium smelting furnace (23) has the same structure as the group A secondary aluminium smelting furnace (21) and the group B secondary aluminium smelting furnace (22), the group A secondary aluminium smelting furnace (21), the group B secondary aluminium smelting furnace (22) and the group C secondary aluminium smelting furnace (23) being mutually convertible in category according to their internal smelting scrap aluminium status or burning black smoke status or standby idle status.
6. Secondary combustion system for secondary aluminium smelting according to claim 1, characterised in that burners and oxygenating lances (3) are provided on the side walls of the secondary aluminium smelting furnace (2), the burners and oxygenating lances (3) of the class B secondary aluminium smelting furnace (22) being used for secondary combustion of black smoke.
7. Secondary combustion system for secondary aluminium smelting according to claim 6, characterized in that the burners comprise a first burner (4) and a second burner (5) arranged on the side wall of the secondary aluminium smelting furnace (2), the first burner (4) being arranged above the second burner (5), and the oxygenating lance (3) being arranged between the first burner (4) and the second burner (5).
8. Secondary combustion system for secondary aluminium smelting according to claim 7, characterized in that the oxygenating lance (3) is located opposite the first burner (4), the second burner (5).
9. Secondary combustion system for secondary aluminium smelting according to claim 1, characterized in that the secondary aluminium smelting furnace (2) is also provided with a temperature sensor for measuring temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221334326.4U CN217403141U (en) | 2022-05-31 | 2022-05-31 | Secondary combustion system for smelting secondary aluminum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221334326.4U CN217403141U (en) | 2022-05-31 | 2022-05-31 | Secondary combustion system for smelting secondary aluminum |
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| Publication Number | Publication Date |
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| CN217403141U true CN217403141U (en) | 2022-09-09 |
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| CN202221334326.4U Active CN217403141U (en) | 2022-05-31 | 2022-05-31 | Secondary combustion system for smelting secondary aluminum |
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