CN201241173Y - Flue gas utilizing equipment of annealing furnace - Google Patents
Flue gas utilizing equipment of annealing furnace Download PDFInfo
- Publication number
- CN201241173Y CN201241173Y CNU2008201521519U CN200820152151U CN201241173Y CN 201241173 Y CN201241173 Y CN 201241173Y CN U2008201521519 U CNU2008201521519 U CN U2008201521519U CN 200820152151 U CN200820152151 U CN 200820152151U CN 201241173 Y CN201241173 Y CN 201241173Y
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- China
- Prior art keywords
- gas
- annealing furnace
- flue gas
- temperature gas
- interchanger
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Abstract
The utility model relates to an Annealing furnace smoke utilization device, which comprises a high temperature gas/gas heat exchanger and a smoke exhaust pipeline, and is characterized in that the device also includes: an intermediate temperature gas/liquid heat exchanger, a non-woven fabric filter and a hot blast drying chamber sequentially arranged on the smoke exhaust pipeline; and an outlet end of the high temperature gas/gas heat exchanger is connected with the intermediate temperature gas/liquid heat exchanger by the smoke exhaust pipeline, and an outlet end of the hot blast drying chamber is connected with a waste discharge blower. The utility model solves the problems of incomplete utilization of smoke heat and waste of energy resources of the existing annealing furnace.
Description
Technical field
The utility model relates to annealing furnace, and the fume afterheat that relates in particular to annealing furnace utilizes equipment.
Background technology
For reducing production costs, increase the competitive power of manufacturing enterprise, numerous enterprises is being launched many researchs aspect the annealing furnace reusing of energy source.
In steel production enterprise and machine industry, use the local a lot of of annealing furnace, as the various thermal treatments of mechanical component.With regard to by cold rolling, raw material annealing is roughly just arranged, pilot process annealing and finished products, the type of furnace is different, but great majority adopt that the stove of combustion gas all involves the energy utilize problem again.At home nearly ten years on steel band or the anneling production line project of steel plate in, the annealing furnace energy more or less all has certain utilization.Modal is that flue gas is used for the cold steel band of preheating, and the air of preheated-combustion-supporting again is then with regard to emptying.
The device of warm-up combustion-supporting air as shown in Figure 1, stove burner 5 is arranged in process furnace burner hearth 6, combustion-supporting cold wind enters High Temperature Gas/gas interchanger 3 by cold wind blower fan 1 via cold air duct 2, the high-temperature flue gas that comes out from process furnace burner hearth 6 via stove cigarette discharge line 7 and warm-air supply pipeline 4 to High Temperature Gas/gas interchanger 3, combustion-supporting cold wind and high-temperature gas are finished thermal exchange in High Temperature Gas/gas interchanger 3, combustion-supporting cold wind is able to preheating, remaining hot gas is discharged from gas exhaust duct by smoke exhaust fan 8 ', and rainhat has been installed on the discharge line.
Through said process, nearly 80% heat energy is utilized in the annealing furnace.But, still be rich in about 20% heat energy in the flue gas of emptying.With Sweet natural gas commonly used is example, contains 170KWh/m in the flue gas of discharge approximately
3Heat, this value because of the stove ability slightly variant.If can utilize these remaining heat energy, then can save the energy, turn waste into wealth, meet the principle of energy-saving and emission-reduction, and can increase economic efficiency.
Summary of the invention
The purpose of this utility model provides a kind of annealing furnace flue gas utilization equipment, and the annealing furnace flue gas can not make full use of the problem that wastes energy in the solution prior art.
The purpose of this utility model is achieved through the following technical solutions:
A kind of annealing furnace flue gas utilization equipment comprises High Temperature Gas/gas interchanger and smoke discharging pipe, it is characterized in that, also comprises: be installed in the middle temperature gas/liquid interchanger on the smoke discharging pipe successively, nonwoven fabric filter and hot air chamber; Described High Temperature Gas/gas heat exchanger exit end joins by smoke discharging pipe and middle temperature gas/liquid interchanger, the exit end of the described hot air chamber useless blower fan that runs in.
Preferably, nonwoven fabric filter wherein is the plug-in filter.
Preferably, middle temperature gas/liquid interchanger wherein is connected with many group liquid medium circulating lines.
Preferably, middle temperature gas/liquid interchanger wherein is an integrated form multitube group structure.
Positive progressive effect of the present utility model is: made full use of the heat energy of annealing furnace flue gas, energy-saving and emission-reduction increase economic benefit, reduce production costs.
Description of drawings
Fig. 1 is the annealing furnace flue gas utilization schematic diagram that generally uses before not improving.
Fig. 2 utilizes schematic diagram for improving the after annealing kiln gas.
Embodiment
Provide preferred embodiment of the utility model below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 2, be the annealing furnace flue gas utilization equipment before improving in the dashed rectangle, annealing furnace flue gas utilization equipment of the present utility model has been set up middle temperature gas/liquid interchanger 8 at the gas exhaust duct that originally comes out from High Temperature Gas/gas interchanger, in warm gas/liquid interchanger 8 be connected with liquid medium circulating line 9, on the gas exhaust duct after therefrom warm gas/liquid interchanger 8 comes out nonwoven fabric filter 10 has been installed, and on gas exhaust duct thereafter, laid a hot air chamber 11, place in the hot air chamber 11 and wait to dry steel band 12, waste discharge blower fan 13 has been installed in outlet, thereby forms a complete flue gas utilization system.
Realization principle of the present utility model is as described below:
Warm gas/liquid interchanger 8 during the flue gas that comes out from High Temperature Gas/gas interchanger 3 enters via gas exhaust duct, with the liquid medium generation thermal exchange in the liquid medium circulating line 9, liquid medium after the heating just is being used on preceding cleaning by degreasing of steel band annealing and rinsing flushing or is being used for scrubbing of steel band acid cleaning process section and cleaning and spray irrigation.
Middle temperature gas/liquid interchanger 8 herein can be handled the processing requirement of line and need the liquid medium of heat exchange to select according to different steel bands, wherein industry de-salted water of heat exchange the most commonly and weakly alkaline steel band scavenging solution.This equipment is the structure of integrated form multi-group heat exchanger, mainly is made up of many groups tubulation, joint flange, Heat Room, refractory insulating layer and lagging casing etc.This interchanger has adopted integrated form multitube group novel texture, has both alleviated weight of equipment, has dwindled the occupation of land space again, and key has also been saved once investment.
The flue gas that therefrom warm gas/liquid interchanger 8 comes out still has 450～500 ℃, also there is utility value, but contain dust and immobilized particles in this flue gas, if be directly used in the oven dry steel band, then can make dust or immobilized particles stick to steel strip surface, influence the steel band quality, so the flue gas that warm gas/liquid interchanger 8 comes out in allowing in the utility model filters earlier by nonwoven fabric filter 10.Because the temperature at this place requires filtering accuracy higher (3～5 μ m), and should regularly replace about 450～500 ℃,,, be made as coarse filtration and smart filtering 2 grades of filter types for fully guaranteeing its filter effect so select the plug-in filter for use.When need are changed, take out " dirty ", insert clean filter again and get final product, " dirty " recoiled can be reused after the cleaning, till breakage.The effect of this equipment is to remove dust in flue gas or solid particulate matter, avoids the surface of " staining " steel band cleaning.
Nonwoven fabric filter is removed dust in flue gas or solid particulate, and the clean flue gas after coming out is used for drying the steel band after the cleaning.Utilize the waste discharge blower fan that flue gas is discharged factory building at last, accomplished " zero release " of annealing furnace flue gas.
Though more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to embodiment.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (4)
1, a kind of annealing furnace flue gas utilization equipment comprises High Temperature Gas/gas interchanger and smoke discharging pipe, it is characterized in that, also comprises: be installed in the middle temperature gas/liquid interchanger on the smoke discharging pipe successively, nonwoven fabric filter and hot air chamber; Described High Temperature Gas/gas heat exchanger exit end joins by smoke discharging pipe and middle temperature gas/liquid interchanger, the exit end of the described hot air chamber useless blower fan that runs in.
2, annealing furnace flue gas utilization equipment as claimed in claim 1 is characterized in that, described nonwoven fabric filter is the plug-in filter.
3, annealing furnace flue gas utilization equipment as claimed in claim 2 is characterized in that, described in warm gas/liquid interchanger be connected with many group liquid medium circulating lines.
4, annealing furnace flue gas utilization equipment as claimed in claim 3 is characterized in that, described in warm gas/liquid interchanger be integrated form multitube group structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201521519U CN201241173Y (en) | 2008-08-19 | 2008-08-19 | Flue gas utilizing equipment of annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201521519U CN201241173Y (en) | 2008-08-19 | 2008-08-19 | Flue gas utilizing equipment of annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241173Y true CN201241173Y (en) | 2009-05-20 |
Family
ID=40714468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201521519U Expired - Fee Related CN201241173Y (en) | 2008-08-19 | 2008-08-19 | Flue gas utilizing equipment of annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241173Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865751A (en) * | 2012-10-09 | 2013-01-09 | 无锡信德隆工业炉有限公司 | Energy-saving combustion system of gas bell-type annealing furnace |
| CN103217020A (en) * | 2013-04-24 | 2013-07-24 | 黄华杰 | Device and system for efficient and energy-saving combustion of casting annealing furnace |
-
2008
- 2008-08-19 CN CNU2008201521519U patent/CN201241173Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865751A (en) * | 2012-10-09 | 2013-01-09 | 无锡信德隆工业炉有限公司 | Energy-saving combustion system of gas bell-type annealing furnace |
| CN103217020A (en) * | 2013-04-24 | 2013-07-24 | 黄华杰 | Device and system for efficient and energy-saving combustion of casting annealing furnace |
| CN103217020B (en) * | 2013-04-24 | 2014-12-03 | 黄华杰 | Device and system for efficient and energy-saving combustion of casting annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Guangda Inventor after: Ai Xiaoping Inventor before: Chen Guangda |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN GUANGDA TO: CHEN GUANGDA AI XIAOPING |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |