CN201916922U - Preheating device for combustion air of smelting furnace - Google Patents
Preheating device for combustion air of smelting furnace Download PDFInfo
- Publication number
- CN201916922U CN201916922U CN2010205453490U CN201020545349U CN201916922U CN 201916922 U CN201916922 U CN 201916922U CN 2010205453490 U CN2010205453490 U CN 2010205453490U CN 201020545349 U CN201020545349 U CN 201020545349U CN 201916922 U CN201916922 U CN 201916922U
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- CN
- China
- Prior art keywords
- smelting furnace
- combustion air
- air
- smokejack
- tornadotron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The utility model belongs to the field of melting technology, in particular to a preheating device for the combustion air of a smelting furnace, which comprises a smelting furnace, an air inlet, a smoke vent, a suction fan, a rotary airduct and a smoke evacuation passage.After the heat exchange of the cold air extracted by the suction fan and served as the combustion air with the high temperature flue gas discharged out of the smoke evacuation passage, the cold air flows into the cavity of the smelting furnace to finish the preheating process.According to the preheating device of the utility model, the flue gas waste heat is made full use of to heat the combustion air, so that energy is effectively saved.The combustion efficiency, combustion intensity, flame temperature and speed are improved by preheating the combustion air.Meanwhile, the furnace gas circulation and the heating speed are reinforced and the process is simplified.The integral process of the melting is shortened.The high temperature flue gas is discharged into the atmosphere at a low temperature, thereby reducing the pollution to the atmosphere.
Description
Technical field
The utility model belongs to the smelting technology technical field, is specifically related to a kind of smelting furnace combustion air preheating device.
Background technology
In Metal Melting industry, common operation is earlier to the smelting furnace preheating of opening fire, make furnace chamber reach the melting initial temperature after, add furnace charge again and carry out melting.Simultaneously, the high-temperature flue gas of melting generation is directly discharged.Current country requires more and more higher to the industrial circle energy-conserving and environment-protective, for this reason, be necessary to research and solve the problem of high-temperature flue gas UTILIZATION OF VESIDUAL HEAT IN.
Summary of the invention
The purpose of this utility model is to provide a kind of smelting furnace combustion air preheating device, utilizes the waste heat of high-temperature flue gas, and combustion air is carried out importing the smelting furnace furnace chamber after the preheating.
The technical solution of the utility model is as follows: a kind of smelting furnace combustion air preheating device, constitute by smelting furnace, air inlet, exhaust opening, air exhauster, tornadotron, smokejack, the cold air that described air exhauster extracts enters the smelting furnace furnace chamber as combustion air after the high-temperature flue gas with the smokejack discharge carries out heat exchange, finish warm.
Behind the described furnace tubes upper furnace door is airtight cavity, is provided with air inlet and exhaust opening.
Described air inlet links to each other with tornadotron, and the combustion air after preheating is from air inlet input smelting furnace furnace chamber.
Described exhaust opening links to each other with smokejack, and the high-temperature flue gas that melting produces is discharged through smokejack from exhaust opening.
Described air exhauster links to each other with tornadotron, and the cold air of finding time enters smelting furnace as combustion air through tornadotron.
Described tornadotron is arranged in around the smokejack, cold air in the tornadotron from up to down moves, the bottom-up motion of high-temperature flue gas in the smokejack, tornadotron fully contacts with smokejack, and cold air in the tornadotron and the high-temperature flue gas in the smokejack carry out heat exchange in motion process.
The beneficial effects of the utility model are:
1, makes full use of fume afterheat heating combustion air, effectively energy savings.
2, efficiency of combustion, combustion intensity, flame temperature and speed be can improve after the combustion air preheating, furnace atmosphere circulation and programming rate strengthened.
3, combustion air and furnace insulation carry out synchronously, reduce operation, the total duration of compression melting.
4, high-temperature flue gas through with the cold air sufficient heat exchange after, enter atmosphere with low temperature, reduce atmosphere pollution.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.Wherein, 1 is smelting furnace, and 2 is air inlet, and 3 is exhaust opening, and 4 is air exhauster, and 5 is tornadotron, and 6 is smokejack,
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further:
As shown in Figure 1, in melting operation, when a last stove furnace charge melting is finished, smelting furnace (1) is when entering holding stage, and high-temperature flue gas is upwards discharged from smokejack (6) through exhaust opening (3), and air exhauster (6) extraction cold air enters tornadotron (5) and flows downward, cold air and high-temperature flue gas fully carry out heat exchange in reverse flow, final cold air is finished preheating, enters smelting furnace (1) furnace chamber as combustion air through air inlet (2), discharges behind the flue gas cool-down.
Claims (6)
1. smelting furnace combustion air preheating device, constitute by smelting furnace, air inlet, exhaust opening, air exhauster, tornadotron, smokejack, it is characterized in that: the cold air that described air exhauster extracts enters the smelting furnace furnace chamber as combustion air after the high-temperature flue gas with the smokejack discharge carries out heat exchange, finish warm.
2. smelting furnace combustion air preheating device according to claim 1 is characterized in that: be behind the described furnace tubes upper furnace door to be provided with air inlet and exhaust opening by airtight cavity.
3. smelting furnace combustion air preheating device according to claim 1, it is characterized in that: described air inlet links to each other with tornadotron, and the combustion air after preheating is from air inlet input smelting furnace furnace chamber.
4. smelting furnace combustion air preheating device according to claim 1, it is characterized in that: described exhaust opening links to each other with smokejack, and the high-temperature flue gas that melting produces is discharged through smokejack from exhaust opening.
5. smelting furnace combustion air preheating device according to claim 1, it is characterized in that: described air exhauster links to each other with tornadotron, and the cold air of finding time enters smelting furnace as combustion air through tornadotron.
6. smelting furnace combustion air preheating device according to claim 1, it is characterized in that: described tornadotron is arranged in around the smokejack, cold air in the tornadotron from up to down moves, the bottom-up motion of high-temperature flue gas in the smokejack, tornadotron fully contacts with smokejack, and cold air in the tornadotron and the high-temperature flue gas in the smokejack carry out heat exchange in motion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205453490U CN201916922U (en) | 2010-09-27 | 2010-09-27 | Preheating device for combustion air of smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205453490U CN201916922U (en) | 2010-09-27 | 2010-09-27 | Preheating device for combustion air of smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916922U true CN201916922U (en) | 2011-08-03 |
Family
ID=44416717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205453490U Expired - Lifetime CN201916922U (en) | 2010-09-27 | 2010-09-27 | Preheating device for combustion air of smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916922U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636025A (en) * | 2012-05-08 | 2012-08-15 | 梁刚 | Biomass high-efficiency energy-saving furnace |
| CN108709423A (en) * | 2018-07-23 | 2018-10-26 | 易平 | A kind of melting chamber with fire grate |
| CN108826971A (en) * | 2018-07-23 | 2018-11-16 | 易平 | Novel energy-conserving Hearth Furnace melting furnace |
| CN108827009A (en) * | 2018-07-23 | 2018-11-16 | 易平 | Repetitive sequence circulation preheating device |
-
2010
- 2010-09-27 CN CN2010205453490U patent/CN201916922U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636025A (en) * | 2012-05-08 | 2012-08-15 | 梁刚 | Biomass high-efficiency energy-saving furnace |
| CN102636025B (en) * | 2012-05-08 | 2014-06-25 | 梁刚 | Biomass high-efficiency energy-saving furnace |
| CN108709423A (en) * | 2018-07-23 | 2018-10-26 | 易平 | A kind of melting chamber with fire grate |
| CN108826971A (en) * | 2018-07-23 | 2018-11-16 | 易平 | Novel energy-conserving Hearth Furnace melting furnace |
| CN108827009A (en) * | 2018-07-23 | 2018-11-16 | 易平 | Repetitive sequence circulation preheating device |
| CN108826971B (en) * | 2018-07-23 | 2023-12-15 | 易平 | Low burning loss melting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |