CN104697348A - Device and method for recycling flue gas waste heat of roasting furnace - Google Patents
Device and method for recycling flue gas waste heat of roasting furnace Download PDFInfo
- Publication number
- CN104697348A CN104697348A CN201510141167.4A CN201510141167A CN104697348A CN 104697348 A CN104697348 A CN 104697348A CN 201510141167 A CN201510141167 A CN 201510141167A CN 104697348 A CN104697348 A CN 104697348A
- Authority
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- China
- Prior art keywords
- heat exchange
- drum
- compressed air
- thermal medium
- heat exchanger
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Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000003546 flue gas Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004064 recycling Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000003517 fume Substances 0.000 claims description 30
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 24
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 24
- 229940024545 aluminum hydroxide Drugs 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 23
- 238000011084 recovery Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 9
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 8
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002737 fuel gas Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 13
- 238000012546 transfer Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Disclosed are a device and a method for recycling flue gas waste heat of a roasting furnace. The device comprises a heat exchanger and a steam pocket. Fin heat exchange tubes are arranged in the heat exchanger, are filled with heating media and are communicated with the steam pocket through heating medium tubes. The steam pocket comprises a body and a center pipe positioned in the body, the body is filled with water, and the center pipe is communicated with the heating medium tubes. Primary heat exchange between flue gas of the roasting furnace and the heating media is performed in the heat exchanger, and then, secondary heat exchange between the heating media and the water in the steam pocket is performed in the center pipe. Heat in heating medium gas can be recycled through heat exchange, and thus, energy waste is not caused; the temperature of the heating media is high, and the heating media are vaporized during heat exchange, so that moisture condensation on the surfaces of the fin heat exchange tubes during heat exchange of the fuel gas in the heat exchanger is avoided, and heat exchange effect is guaranteed.
Description
Technical field
The invention belongs to novel energy field, particularly relate to a kind of aluminum oxide roasting furnace flue gas waste-heat recovery device and method.
Background technology
Industrial in aluminium oxide calcining process, its discharge flue-gas temperature reaches 160 ~ 170 DEG C, has taken away the waste that a large amount of heats causes the energy.In order to save the energy, industry generally understands recovery waste heat, and the method usually adopted is, in heat exchanger, the cold water in flue gas and heat exchanger tube is carried out heat exchange, makes the heat in flue gas be converted to heat in water and then heating water, for user.But the mode of this flue gas and cold water heat exchange usually can cause because of excessive temperature differentials and there is dew condensation phenomenon at heat-transfer surface; aluminium hydrate powder or slurry is made to be attached on the heat-transfer surface of heat exchanger; affect heat transfer effect; cause heat exchange not smooth, the aluminium-hydroxide powder or the slurry that are attached to heat exchanger tube surface are also difficult to remove.
Therefore, design a kind of better baking furnace fume waste-heat recovery device and method is necessary, to solve the problem.
Summary of the invention
For prior art Problems existing, the invention provides after one utilizes thermal medium and flue gas to carry out a heat exchange and carry out secondary heat exchange with water again, thus prevent the baking furnace fume waste heat recovery condensed from putting and method.
To achieve these goals, the present invention adopts following technical scheme:
A kind of baking furnace fume waste-heat recovery device, comprise: heat exchanger and drum, fin heat exchange pipe is provided with in described heat exchanger, thermal medium is filled in described fin heat exchange pipe, described fin heat exchange pipe is communicated with described drum by thermal medium pipe, described drum has body and is positioned at described intrinsic central tube, water is filled in described body, described central tube is communicated with described thermal medium pipe, baking furnace fume in described heat exchanger with the heat exchange of described thermal medium, then thermal medium in described central tube with the water secondary heat exchange in described drum.
Further, vacuum state is in described fin heat exchange pipe.
Further, described fin heat exchange pipe is provided with multiple, in laterally side by side and vertical multiple row row establish, and to be fixed in described heat exchanger internal stent.
Further, described heat exchanger also comprises compressed air blowback device, and described compressed air blowback device comprises the shower nozzle that many row's multiple rows spray high velocity air, and described shower nozzle corresponds to the fin of described fin heat exchange pipe.
Further, described heat exchanger also comprises impulse electromagnetic valve, compressed air reservoir and compressed air hose, and described compressed air blowback device is by impulse electromagnetic valve, and compressed air hose is communicated with described compressed air reservoir.
Further, the below of described fin heat exchange pipe is provided with dust flue, and described dust flue side is connected with elasticity turbine, and the aluminium-hydroxide powder in described dust flue is discharged outside described heat exchanger by described elasticity turbine.
Further, described drum is also provided with thermal medium import and thermal medium outlet is communicated with described thermal medium pipe respectively, confession described thermal medium pass in and out described central tube; Described drum is also provided with thermometer, Pressure gauge and liquid level gauge, and described thermometer is for measuring the temperature in described drum, and described Pressure gauge is for measuring the pressure of steam in described drum, and described liquid level gauge enters the water level measuring water in described drum.
A kind of baking furnace fume exhaust heat recovering method, comprising:
A. a certain amount of water is injected in drum;
B. Aluminium hydroxide roasting stove is opened, baking furnace fume is passed in heat exchanger, described baking flue gas in described heat exchanger with it in the fin heat exchange pipe that arranges carry out heat exchange, thermal medium in described fin heat exchange pipe be vaporized after a heat exchange enter described drum central tube in, and carry out secondary heat exchange with the water in described drum, after secondary heat exchange, liquefaction returns in described fin heat exchange pipe, and water is heated for recovery simultaneously.
Further, after repeatedly heat exchange, described fin heat exchange pipe adheres to a large amount of aluminium-hydroxide powders, now open the impulse electromagnetic valve be connected with described fin heat exchange pipe, make the compressed air in compressed air reservoir through the shower nozzle of compressed air hose, impulse electromagnetic valve and compressed air blowback device, produce impulse wave and described aluminium-hydroxide powder is blown off into dust flue.
Further, when accumulating in dust flue, a certain amount of described aluminium hydrate powder is last, starts elasticity turbine and aluminium-hydroxide powder is discharged from described dust flue described heat exchanger and reclaim outward.
Beneficial effect of the present invention:
(1) described baking furnace fume first carries out a heat exchange with the described thermal medium in described fin heat exchange pipe in described heat exchanger, because described thermal medium temperature is higher, can vaporize when heat exchange, therefore flue gas can not produce condensation on the surface of described fin heat exchange pipe during heat exchange in described heat exchanger, avoid and drip with the water dew that condensation goes out when described baking furnace fume is at described fin heat exchange pipe surface heat exchanging the surface being combined with aluminium hydroxide and being bonded to described fin heat exchange pipe, affect heat transfer effect, the dew that simultaneously it also avoid sulfur-bearing drips the described fin heat exchange pipe of corrosion and described heat exchanger.Enter after described thermal medium is vaporized in described central tube and carry out secondary heat exchange with the water in described drum, the heat in heating agent gas can be converted to the heat in water, and then heating water is for user, realizes heat recovery, can not cause energy waste.
(2) be provided with compressed air blowback device in described heat exchanger, the aluminium-hydroxide powder that described fin heat exchange pipe adheres to can be blown off, enter in described dust flue, then recyclable aluminium-hydroxide powder, decreases the wasting of resources.
Accompanying drawing explanation
Fig. 1 is baking furnace fume waste-heat recovery device structural representation of the present invention;
Fig. 2 is that baking furnace fume waste-heat recovery device A of the present invention is to structural representation.
In figure, 1-heat exchanger, 2-shell, 3-gas approach, 4-exhanst gas outlet, 5-dust flue, 6-elasticity turbine, 7-fin heat exchange pipe, 8-compressed air blowback device, 9-impulse electromagnetic valve, 10-compressed air reservoir, 11-compressed air hose, 12-drum, 121-body, 122-central tube, 13-water inlet, 14-thermometer, 15-Pressure gauge, 16-liquid level gauge, 17-delivery port, the import of 18-thermal medium, 19-thermal medium exports, 20-first thermal medium pipe, 21-second thermal medium pipe.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As depicted in figs. 1 and 2, baking furnace fume waste-heat recovery device of the present invention comprises heat exchanger 1 and drum 12.Wherein heat exchanger 1 comprises shell 2, the two ends of shell 2 are respectively equipped with gas approach 3 and exhanst gas outlet 4, the centre of shell 2 is provided with fin heat exchange pipe 7, in the present embodiment, fin heat exchange pipe 7 is provided with multiple, to be laterally arranged in from top to bottom side by side in shell 2 and to be fixed in internal stent (non-label), discharge several row simultaneously, vacuumize in fin heat exchange pipe 7, and be filled with thermal medium, thermal medium is more conducive to vaporization under vacuum conditions.The surrounding of described fin heat exchange pipe 7 is provided with compressed air blowback device 8, compressed air blowback device 8 is made up of the shower nozzle arranging multiple row injection high velocity air more, each shower nozzle is just to the fin of fin heat exchange pipe 7, shower nozzle ejection air pulse at a high speed effectively can blow the aluminium-hydroxide powder of attachment on fin heat exchange pipe 7 off, compressed air blowback device 8 is connected with compressed air reservoir 10 by impulse electromagnetic valve 9, compressed air hose 11, and compressed air reservoir 10 is a cylindric GB150-1998.When opening impulse electromagnetic valve 9, compressed air in compressed air reservoir 10 can fast through the shower nozzle of compressed air hose 11, impulse electromagnetic valve 9, compressed air blowback device 8, the impulse wave produced acts on fin heat exchange pipe 7 and is blown off by aluminium-hydroxide powder, prevent too much being attached on fin heat exchange pipe 7 of aluminium-hydroxide powder, affect heat transfer effect.The lower end of shell 2 is provided with dust-exhausting port 5, and dust-exhausting port 5 lower end is connected with elasticity turbine 6.
Drum 12 comprises body 121 and is positioned at the central tube 122 of body 121, central tube 122 is U-shaped pipe, multiple U-shaped pipe is distributed in drum 12, drum 12 both sides are provided with thermal medium import 18 and are connected with the first thermal medium pipe 20 and the second thermal medium pipe 21 respectively with thermal medium outlet 19, central tube 122 is communicated with fin heat exchange pipe 7 with the second thermal medium 21 by the first thermal medium pipe 20, when the thermal medium in fin heat exchange pipe 7 is understood through the first thermal medium pipe 20 after heat vaporized, and enter in central tube 122 via thermal medium import 18, with the water heat exchange in drum 12 after, thermal medium is cooled flows into the second thermal medium pipe 21 via thermal medium outlet 19, and then flow back to the utilization of tuberculated pipe 7 Inner eycle.Drum 12 is also provided with thermometer 14, Pressure gauge 15 and liquid level gauge 16, thermometer 14 preferably thermal resistance thermometer, thermometer 14 inserts the temperature measuring water in drum 12, Pressure gauge 15 inserts the pressure measuring steam in drum 12 in drum 12, liquid level gauge 16 inserts the water level measuring water in drum 12, is convenient to add water in time and draining.Drum 12 is also provided with water inlet 13 and delivery port 17, enters central tube 122 for the water of low temperature respectively, and flowed out central tube 122 by the water of the high temperature after heating.In the present embodiment, water added in drum 12 is hot water, and thermal medium is with it after heat exchange, and water absorbs heat and becomes steam, discharge from delivery port 17, for heating etc., thermometer 14, for measuring the temperature of steam in drum 12, controls the water yield, be convenient to add water, Pressure gauge 15 is for measuring the pressure of steam, and described liquid level gauge 16, for monitoring the water level of water, prevents lack of water.In other embodiments, the water in drum 12 is also cold water, and thermal medium is heating cold water after heat exchange with it, makes it become hot water or warm water, for for operation before aluminium oxide or be supplied to hot water needed for user.
Below the method that Aluminium hydroxide roasting furnace flue gas exhaust heat and aluminium hydroxide reclaim is described:
A., before baking furnace fume is cooled, first open water pump, after being filled with a certain amount of water by water inlet 13 in drum 12, stop water pump.
B. opening alumina roasting furnace after executing above-mentioned action enters in heat exchanger 1 by baking furnace fume by gas approach 3, and the blower fan flowing out into roaster by exhanst gas outlet 4 after the heat smoke of 160 ~ 170 DEG C and fin heat exchange pipe 7 carry out indirect heat exchange in heat exchanger 1 is discharged into air.Indirect heat exchange herein refers to that the thermal medium in baking furnace fume and fin heat exchange pipe 7 carries out heat exchange, because thermal medium temperature is higher, can vaporize when heat exchange, therefore flue gas can not produce dew condensation phenomenon on the surface of tuberculated pipe 7 during heat exchange in heat exchanger 1, avoid and drip with the water dew that condensation goes out when described baking furnace fume is at described fin heat exchange pipe 7 surface heat exchanging the surface being combined with aluminium hydroxide and being bonded to described fin heat exchange pipe 7, affect heat transfer effect, the dew that simultaneously it also avoid sulfur-bearing drips the described fin heat exchange pipe 7 of corrosion and described heat exchanger 1.Thermal medium enters in central tube 122 by the first thermal medium pipe 20, thermal medium import 18 after heat vaporized, indirect heat exchange is carried out with the water in drum 12, thermal medium after cooled flows back in fin heat exchange pipe 7 by thermal medium outlet the 19, second thermal medium pipe 21, water in reciprocation cycle drum 12 is flowed out drum 12 by heat vaporized one-tenth water vapour by delivery port 17 and is sent to user, realize heat recovery, can not energy waste be caused.Measure water level in drum 12 with timely amount of makeup water by liquid level gauge 16 simultaneously.
C., after heat exchanger 1 runs certain hour, fin heat exchange pipe 7 can be attached with a large amount of aluminium-hydroxide powders, affect heat transfer effect.Now open impulse electromagnetic valve 9, compressed air in compressed air reservoir 10 can fast through the shower nozzle of compressed air hose 11, impulse electromagnetic valve 9, compressed air blowback device 8, the impulse wave produced acts on fin heat exchange pipe 7 and is blown off by aluminium hydrate powder, partial aluminum hydroxide powder is discharged into air with flue gas by blower fan, and most of aluminium hydrate powder is fallen in the dust flue 5 of shell 2 bottom.
D. when accumulating in dust flue 5, a certain amount of aluminium hydrate powder is last will be cleared up, and now start elasticity turbine 6, aluminium-hydroxide powder is discharged outside heat exchanger 1 through dust flue 5, elasticity turbine 6, and user recycles, and decreases the wasting of resources.
The flue-gas temperature of discharging after adopting baking furnace fume waste-heat recovery device of the present invention to reclaim heat can drop to 120 DEG C, the heat of the recyclable 57620kCal of every t aluminium oxide, produces 47Mt aluminium oxide per year, recyclable 2.71 × 10 by China in 2014
12the heat of kcal, folding standard coal is 386877 tons, simultaneously recyclable 3800t aluminium hydroxide, and Social benefit and economic benefit is remarkable.
Therefore, baking furnace fume waste-heat recovery device heat exchange efficiency of the present invention is high, and can prevent fin heat exchange pipe outer surface from condensing, and anti-dew drips corrosion, and can reclaim most of aluminium-hydroxide powder, deashing advantage easily.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those skilled in the art are to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in right of the present invention.
Claims (10)
1. a baking furnace fume waste-heat recovery device, it is characterized in that, comprise: heat exchanger and drum, fin heat exchange pipe is provided with in described heat exchanger, thermal medium is filled in described fin heat exchange pipe, described fin heat exchange pipe is communicated with described drum by thermal medium pipe, described drum has body and is positioned at described intrinsic central tube, water is filled in described body, described central tube is communicated with described thermal medium pipe, baking furnace fume in described heat exchanger with the heat exchange of described thermal medium, then thermal medium in described central tube with the water secondary heat exchange in described drum.
2. baking furnace fume waste-heat recovery device according to claim 1, is characterized in that: be in vacuum state in described fin heat exchange pipe.
3. baking furnace fume waste-heat recovery device according to claim 1, is characterized in that: described fin heat exchange pipe is provided with multiple, in laterally side by side and vertical multiple row row establish, and to be fixed in described heat exchanger internal stent.
4. baking furnace fume waste-heat recovery device according to claim 1, it is characterized in that: described heat exchanger also comprises compressed air blowback device, described compressed air blowback device comprises the shower nozzle that many row's multiple rows spray high velocity air, and described shower nozzle corresponds to the fin of described fin heat exchange pipe.
5. baking furnace fume waste-heat recovery device according to claim 4, it is characterized in that: described heat exchanger also comprises impulse electromagnetic valve, compressed air reservoir and compressed air hose, described compressed air blowback device is by impulse electromagnetic valve, and compressed air hose is communicated with described compressed air reservoir.
6. baking furnace fume waste-heat recovery device according to claim 1, it is characterized in that: the below of described fin heat exchange pipe is provided with dust flue, described dust flue side is connected with elasticity turbine, and the aluminium-hydroxide powder in described dust flue is discharged outside described heat exchanger by described elasticity turbine.
7. baking furnace fume waste-heat recovery device according to claim 1, it is characterized in that: described drum is also provided with thermal medium import and thermal medium outlet be communicated with described thermal medium pipe respectively, described central tube is passed in and out for described thermal medium, described drum is also provided with thermometer, Pressure gauge and liquid level gauge, described thermometer is for measuring the temperature in described drum, described Pressure gauge is for measuring the pressure of steam in described drum, and described liquid level gauge enters the water level measuring water in described drum.
8. a baking furnace fume exhaust heat recovering method, is characterized in that, comprising:
A. a certain amount of water is injected in drum;
B. Aluminium hydroxide roasting stove is opened, baking furnace fume is passed in heat exchanger, described baking flue gas in described heat exchanger with it in the fin heat exchange pipe that arranges carry out heat exchange, thermal medium in described fin heat exchange pipe be vaporized after a heat exchange enter described drum central tube in, and carry out secondary heat exchange with the water in described drum, after secondary heat exchange, liquefaction returns in described fin heat exchange pipe, and water is heated for recovery simultaneously.
9. baking furnace fume exhaust heat recovering method according to claim 8, it is characterized in that: after repeatedly heat exchange, described fin heat exchange pipe adheres to a large amount of aluminium-hydroxide powders, now open the impulse electromagnetic valve be connected with described fin heat exchange pipe, make the compressed air in compressed air reservoir through the shower nozzle of compressed air hose, impulse electromagnetic valve and compressed air blowback device, produce impulse wave and described aluminium-hydroxide powder is blown off into dust flue.
10. baking furnace fume exhaust heat recovering method according to claim 9, it is characterized in that: a certain amount of described aluminium hydrate powder is last when accumulating in dust flue, starting elasticity turbine and aluminium-hydroxide powder being discharged from described dust flue described heat exchanger and reclaim outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141167.4A CN104697348B (en) | 2015-03-27 | 2015-03-27 | Baking furnace fume waste-heat recovery device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141167.4A CN104697348B (en) | 2015-03-27 | 2015-03-27 | Baking furnace fume waste-heat recovery device and method |
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| Publication Number | Publication Date |
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| CN104697348A true CN104697348A (en) | 2015-06-10 |
| CN104697348B CN104697348B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510141167.4A Active CN104697348B (en) | 2015-03-27 | 2015-03-27 | Baking furnace fume waste-heat recovery device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446862A (en) * | 2020-03-24 | 2021-09-28 | 沈阳铝镁设计研究院有限公司 | Flue gas waste heat recovery device for aluminum hydroxide roasting furnace |
| CN113521978A (en) * | 2021-06-29 | 2021-10-22 | 上海华励振环保科技有限公司 | ICR dry powder denitration device with waste heat collecting function |
| CN119245015A (en) * | 2024-10-19 | 2025-01-03 | 新疆华电米东热电有限公司 | A corrosion-resistant and wear-resistant economizer and a preparation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104697348B (en) | 2016-09-07 |
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