CN101614484B - Method and device for recovering waste heat of non-ferrous metal smelting furnace - Google Patents
Method and device for recovering waste heat of non-ferrous metal smelting furnace Download PDFInfo
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- CN101614484B CN101614484B CN2008100671937A CN200810067193A CN101614484B CN 101614484 B CN101614484 B CN 101614484B CN 2008100671937 A CN2008100671937 A CN 2008100671937A CN 200810067193 A CN200810067193 A CN 200810067193A CN 101614484 B CN101614484 B CN 101614484B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The invention relates to a method and a device for recovering the waste heat of a non-ferrous metal smelting furnace. The device comprises a heat conducting isolation layer (30) and an outer heat insulation layer (20) covering outside a furnace body (10), a smelting furnace exhaust port (11), an isolation layer exhaust port (31), an outer heat insulation layer exhaust port (21) and a roundabout reciprocating exhaust passage (40) formed by a first exhaust passage (41) and a third exhaust passage (43); and most of an air duct (51) of an airy supply system (50) is arranged in the heat conducting isolation layer (30), the isolation layer (30) comprises a first isolation layer (32) and a second isolation layer (33), and the heated air in the air duct (51) heats the entering air of the smelting furnace or preheats the materials. By adopting the technical scheme, the method and the device can reduce the temperature for exhaust emission, reduce the influences on the surrounding environment, and simultaneously can make full use of the waste heat in the waste gas and save energy sources.
Description
Technical field
The present invention relates to power-saving technology, particularly be used for the method and the device of the waste gas produced waste heat recovery of nonferrous metallurgical process.
Background technology
The high-temperature flue gas that is produced in the general smelting non-ferrous metal process is all directly arranged and carry out exhaust-gas treatment in exhaust-gas treatment facilities, this processing mode of carrying out earlier, a large amount of heat that will scatter and disappear in waste gas treatment process, not only contaminated environment and destroy the ecological balance also causes a large amount of energy wastes.And, this mode, exhaust-gas treatment facilities will have reasonable heat resistance, will cause cost to increase undoubtedly, and equipment is also relatively more expensive.In addition, present smelting furnace outer wall heat-insulating property is poor, and a large amount of heats are scattered and disappeared away by outer wall, influences environment too and wastes very big.
Summary of the invention
The invention provides a kind of exhaust heat recovering method and device of non-ferrous metal smelting furnace, adopt the waste heat that reclaims earlier in the waste gas, and then carry out the processing of pollutant, make full use of the heat in the waste gas, reduce the waste of the energy, solve the big and bigger technical problem of energy waste in the prior art elder generation processing mode ambient influnence.
The scheme that the present invention solves the problems of the technologies described above is, adopts a kind of exhaust heat recovering method of non-ferrous metal smelting furnace, may further comprise the steps:
A. the body of heater outside of smelting furnace at first is provided with the separation layer of at least one heat conduction, leave the internal layer exhaust passage between this separation layer and the body of heater, exhaust outlet is offered in appropriate location at this separation layer, makes the exhaust of smelting furnace pass through the exhaust outlet that most internal layer exhaust passage arrives separation layer at least;
B. in the outside of separation layer external thermal insulation is set again, also leave outer exhaust passage between this separation layer and the external thermal insulation, external thermal insulation is also offered exhaust outlet, makes the gas of being discharged by the exhaust outlet of separation layer arrive the exhaust outlet of external thermal insulation at least through most outer exhaust passage;
C., heat exchange coil is set in separation layer, and the supply air system of smelting furnace is sent into cold wind in this heat exchange coil and is heated, and then hot blast is delivered to auxiliary heating part and is used.
The separation layer that is provided with in the described steps A is two-layer, leave the intermediate exhaust passage between this two-layer separation layer, every layer of separation layer is equipped with exhaust outlet separately, and the gas of being discharged by internal layer separation layer exhaust outlet is flowed through at least and arrived outer separation layer exhaust outlet behind most of intermediate exhaust passage; The wallboard of separation layer is that Heat Conduction Material is made in the described steps A; Material before supply air system is used to hot blast to add the air inlet of hot melting furnace or is used to heat melting among the described step C.
The waste-heat recovery device of this non-ferrous metal smelting furnace comprises the heat conduction separation layer that covers in the body of heater outside, and this separation layer is provided with exhaust outlet, also comprises the external thermal insulation that covers in heat conduction separation layer outside, and this external thermal insulation also is provided with exhaust outlet; First exhaust passage, the 3rd exhaust passage folded between the exhaust outlet of this smelting furnace, separation layer exhaust outlet, external thermal insulation exhaust outlet and separation layer and body of heater and the external thermal insulation constitute circuitous reciprocal exhaust passage; Further include supply air system, this supply air system comprises that major part is arranged at airduct in the heat conduction separation layer and the air blast that is used for gas circulation, and the air inlet of this airduct connects atmosphere, and air outlet is communicated with the auxiliary heating part of this device.
Described separation layer comprises first separation layer and second separation layer, leaves second exhaust passage between described first separation layer and second separation layer, and it is opposite that first exhaust outlet of described first separation layer and second exhaust outlet of second separation layer are provided with direction; Described auxiliary heating part is arranged at the air inlet pipe place of smelting furnace or preheating place of the preceding material of melting; Described body of heater outside also is laid with the protective layer of inorganic material; Be doped with conductive particles in the described protective layer.
After the present invention adopts above-mentioned technical scheme, can reduce the temperature of toxic emission, reduce influence, can also make full use of the waste heat in the waste gas simultaneously, energy savings surrounding environment.
Description of drawings
Fig. 1 is that the master of non-ferrous metal smelting furnace waste-heat recovery device of the present invention looks cross-sectional schematic.
Fig. 2 is that the present invention adopts the master of double-deck separation layer to look cross-sectional schematic.
Fig. 3 is the schematic diagram of supply air system 50 of the present invention.
The specific embodiment
In conjunction with above-mentioned description of drawings specific embodiments of the invention.
By among Fig. 1 as can be known, the exhaust heat recovering method of this non-ferrous metal smelting furnace may further comprise the steps:
A. the body of heater outside of smelting furnace at first is provided with the separation layer of at least one heat conduction, leave the internal layer exhaust passage between this separation layer and the body of heater, exhaust outlet is offered in appropriate location at this separation layer, makes the exhaust of smelting furnace pass through the exhaust outlet that most internal layer exhaust passage arrives separation layer at least;
B. in the outside of separation layer external thermal insulation is set again, also leave outer exhaust passage between this separation layer and the external thermal insulation, external thermal insulation is also offered exhaust outlet, makes the gas of being discharged by the exhaust outlet of separation layer arrive the exhaust outlet of external thermal insulation at least through most outer exhaust passage;
C., heat exchange coil is set in separation layer, and the supply air system of smelting furnace is sent into cold wind in this heat exchange coil and is heated, and then hot blast is delivered to auxiliary heating part and is used.
Supply air system is used to add the air inlet of hot melting furnace with hot blast among the described step C, and supply air system is used to heat material before the melting with hot blast among the perhaps described step C.
The present invention changes the open exhaust mode of original smelting furnace into the mode of closed exhaust, with separation layer and external thermal insulation original exhaust outlet is sealed, make waste gas in the process of discharging, must be through the exhaust passage between body of heater, separation layer and the external thermal insulation, in above-mentioned exhaust passage, install heat exchange coil additional then, the heat in the waste gas is remained, be used to add the air inlet of thermal material or smelting furnace, can reduce energy consumption, and reduce influence environment.
By among Fig. 2 as can be known, the separation layer that is provided with in the described steps A is two-layer, leave the intermediate exhaust passage between this two-layer separation layer, every layer of separation layer is equipped with exhaust outlet separately, the gas of being discharged by internal layer separation layer exhaust outlet is flowed through at least and is arrived outer separation layer exhaust outlet behind most of intermediate exhaust passage, and the wallboard of separation layer is that Heat Conduction Material is made in the described steps A.Increasing the separation layer purpose is in order to improve the effect of heat exchange, to keep the waste heat of waste gas as much as possible.
By among Fig. 1 and Fig. 3 as can be known, a kind of waste-heat recovery device of non-ferrous metal smelting furnace, this device comprises the heat conduction separation layer 30 that covers in body of heater 10 outsides, this separation layer 30 is provided with exhaust outlet 31, also comprise the external thermal insulation 20 that covers in heat conduction separation layer 30 outsides, this external thermal insulation 20 also is provided with exhaust outlet 21; First exhaust passage 41, the 3rd exhaust passage 43 folded between the exhaust outlet 11 of this smelting furnace, separation layer exhaust outlet 31, external thermal insulation exhaust outlet 21 and separation layer 30 and body of heater 10 and the external thermal insulation 20 constitute circuitous reciprocal exhaust passage 40; Further include supply air system 50, this supply air system 50 comprises that major part is arranged at airduct 51 in the heat conduction separation layer 30 and the air blast 52 that is used for gas circulation, and the air inlet of this airduct 51 connects atmosphere, and air outlet is communicated with the auxiliary heating part 53 of this device.Waste gas among the present invention in the smelting furnace body of heater 10, at first the exhaust outlet 11 of process smelting furnace is expelled to first exhaust passage 41 between separation layer 30 and the body of heater 10, in this first exhaust passage 41, waste heat passed to the airduct 51 in the heat conduction separation layer 30, by the GAS ABSORPTION heat in the airduct 51.Waste gas drains in the 3rd exhaust passage 43 through separation layer exhaust outlet 31 afterwards, carry out heat exchange once more, discharge through external thermal insulation exhaust outlet 21 at last, in above-mentioned exhaust process, in the waste gas entrained heat fully and the cold air in the airduct 51 carry out heat exchange, not only can reduce the delivery temperature of waste gas, alleviate influence to environment, do not need very high heat resistance for exhaust-gas treatment facilities yet, reduced cost.And the waste heat in the waste gas also can be fully utilized, and reduces the consumption of the energy.
By among Fig. 2 as can be known, described separation layer 30 comprises first separation layer 32 and second separation layer 33, leave second exhaust passage 42 between described first separation layer 32 and second separation layer 33, it is opposite that first exhaust outlet 311 of described first separation layer 32 and second exhaust outlet 312 of second separation layer 33 are provided with direction.
Described auxiliary heating part 53 is arranged at the air inlet pipe place of smelting furnace or preheating place of the preceding material of melting.
Described body of heater 10 outsides also are laid with the protective layer 12 of inorganic material, are doped with conductive particles 13 in the described protective layer 12.The present invention lays protective layer 12 at body of heater 10 outer surfaces, can protect body of heater, avoids waste gas that the corrosion and the body of heater of body of heater are produced oxidation, increases the service life.In protective layer, add conductive particles, can improve heat-conducting effect, simultaneously, adopt metal particle, can increase the shock resistance of protective layer.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the exhaust heat recovering method of a non-ferrous metal smelting furnace, it is characterized in that: this method may further comprise the steps:
A. the body of heater outside of smelting furnace at first is provided with the separation layer of at least one heat conduction, leave the internal layer exhaust passage between this separation layer and the body of heater, exhaust outlet is offered in appropriate location at this separation layer, makes the exhaust of smelting furnace pass through the exhaust outlet that most internal layer exhaust passage arrives separation layer at least;
B. in the outside of separation layer external thermal insulation is set again, also leave outer exhaust passage between this separation layer and the external thermal insulation, external thermal insulation is also offered exhaust outlet, makes the gas of being discharged by the exhaust outlet of separation layer arrive the exhaust outlet of external thermal insulation at least through most outer exhaust passage;
C., heat exchange coil is set in separation layer, and the supply air system of smelting furnace is sent into cold wind in this heat exchange coil and is heated, and then hot blast is delivered to auxiliary heating part and is used.
2. method according to claim 1, it is characterized in that: the separation layer that is provided with in the described steps A is two-layer, leave the intermediate exhaust passage between this two-layer separation layer, every layer of separation layer is equipped with exhaust outlet separately, and the gas of being discharged by internal layer separation layer exhaust outlet is flowed through at least and arrived outer separation layer exhaust outlet behind most of intermediate exhaust passage.
3. method according to claim 1 and 2 is characterized in that: the wallboard of separation layer is that Heat Conduction Material is made in the described steps A.
4. method according to claim 1 and 2 is characterized in that: supply air system is used to hot blast to add the air inlet of hot melting furnace among the described step C.
5. method according to claim 1 and 2 is characterized in that: supply air system is used to heat material before the melting with hot blast among the described step C.
6. the waste-heat recovery device of a non-ferrous metal smelting furnace, it is characterized in that: this device comprises the heat conduction separation layer (30) that covers in body of heater (10) outside, this heat conduction separation layer (30) is provided with exhaust outlet (31), also comprise the external thermal insulation (20) that covers in heat conduction separation layer (30) outside, this external thermal insulation (20) also is provided with exhaust outlet (21); First exhaust passage (41), the 3rd exhaust passage (43) folded between the exhaust outlet of this smelting furnace (11), separation layer exhaust outlet (31), external thermal insulation exhaust outlet (21) and separation layer (30) and body of heater (10) and the external thermal insulation (20) constitute circuitous reciprocal exhaust passage (40); Further include supply air system (50), this supply air system (50) comprises that major part is arranged at airduct (51) in the heat conduction separation layer (30) and the air blast (52) that is used for gas circulation, the air inlet of this airduct (51) connects atmosphere, and air outlet is communicated with the auxiliary heating part (53) of this device.
7. according to the waste-heat recovery device of the described non-ferrous metal smelting furnace of claim 6, it is characterized in that: described separation layer (30) comprises first separation layer (32) and second separation layer (33), leave second exhaust passage (42) between described first separation layer (32) and second separation layer (33), it is opposite that first exhaust outlet (311) of described first separation layer (32) and second exhaust outlet (312) of second separation layer (33) are provided with direction.
8. according to the waste-heat recovery device of claim 6 or 7 described non-ferrous metal smelting furnaces, it is characterized in that: described auxiliary heating part (53) is arranged at the air inlet pipe place of smelting furnace or preheating place of the preceding material of melting.
9. according to the waste-heat recovery device of claim 6 or 7 described non-ferrous metal smelting furnaces, it is characterized in that: described body of heater (10) outside also is laid with the protective layer (12) of inorganic material.
10. according to the waste-heat recovery device of the described non-ferrous metal smelting furnace of claim 9, it is characterized in that: be doped with conductive particles (13) in the described protective layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100671937A CN101614484B (en) | 2008-05-20 | 2008-05-20 | Method and device for recovering waste heat of non-ferrous metal smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100671937A CN101614484B (en) | 2008-05-20 | 2008-05-20 | Method and device for recovering waste heat of non-ferrous metal smelting furnace |
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| Publication Number | Publication Date |
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| CN101614484A CN101614484A (en) | 2009-12-30 |
| CN101614484B true CN101614484B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100671937A Expired - Fee Related CN101614484B (en) | 2008-05-20 | 2008-05-20 | Method and device for recovering waste heat of non-ferrous metal smelting furnace |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655383B (en) * | 2017-03-29 | 2020-02-18 | 鞍钢股份有限公司 | System and method for recovering waste heat of damaged hot metal ladle |
| CN109487049B (en) * | 2018-12-28 | 2020-11-17 | 浙江鑫通达特钢制造有限公司 | High-efficiency energy-saving gas annealing furnace |
Citations (6)
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|---|---|---|---|---|
| CN2140023Y (en) * | 1992-10-21 | 1993-08-11 | 叶储生 | Multi-functional small energy-saving stove |
| CN2163955Y (en) * | 1993-04-20 | 1994-05-04 | 陶军峰 | High-efficient self-preheating multi-purpose coal-saving stove |
| CN2166324Y (en) * | 1993-05-23 | 1994-05-25 | 董玉华 | Honeycomb briquet heating cooking stove |
| CN2326924Y (en) * | 1998-05-22 | 1999-06-30 | 杨庭章 | Smoke-abating and desulfurizing apparatus for industrial baking down-draft furnace or kiln |
| CN2387492Y (en) * | 1999-09-29 | 2000-07-12 | 肖风楼 | Industrial kiln |
| CN201251369Y (en) * | 2008-05-20 | 2009-06-03 | 杨栋 | Heat recovery device of non-ferrous metal smelting furnace |
-
2008
- 2008-05-20 CN CN2008100671937A patent/CN101614484B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140023Y (en) * | 1992-10-21 | 1993-08-11 | 叶储生 | Multi-functional small energy-saving stove |
| CN2163955Y (en) * | 1993-04-20 | 1994-05-04 | 陶军峰 | High-efficient self-preheating multi-purpose coal-saving stove |
| CN2166324Y (en) * | 1993-05-23 | 1994-05-25 | 董玉华 | Honeycomb briquet heating cooking stove |
| CN2326924Y (en) * | 1998-05-22 | 1999-06-30 | 杨庭章 | Smoke-abating and desulfurizing apparatus for industrial baking down-draft furnace or kiln |
| CN2387492Y (en) * | 1999-09-29 | 2000-07-12 | 肖风楼 | Industrial kiln |
| CN201251369Y (en) * | 2008-05-20 | 2009-06-03 | 杨栋 | Heat recovery device of non-ferrous metal smelting furnace |
Non-Patent Citations (2)
| Title |
|---|
| JP昭58-140329A 1983.08.20 |
| JP特开2006-124838A 2006.05.18 |
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| CN101614484A (en) | 2009-12-30 |
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Granted publication date: 20110907 Termination date: 20120520 |