CN202141326U - Flue heat exchange device for tunnel kiln - Google Patents
Flue heat exchange device for tunnel kiln Download PDFInfo
- Publication number
- CN202141326U CN202141326U CN201120219603U CN201120219603U CN202141326U CN 202141326 U CN202141326 U CN 202141326U CN 201120219603 U CN201120219603 U CN 201120219603U CN 201120219603 U CN201120219603 U CN 201120219603U CN 202141326 U CN202141326 U CN 202141326U
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- China
- Prior art keywords
- flue
- heat exchange
- kiln
- combustion
- exchange device
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- 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 - Fee Related
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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)
Abstract
The utility model discloses a flue heat exchange device for a tunnel kiln, which solves the problems of power consumption, waste of afterheat and the like due to the fact that waste flue gas exhausted from a preheating section of a traditional tunnel kiln is over-high in temperature and needs to be mixed with cold air. The flue heat exchange device for the tunnel kiln is characterized in that a flue heat exchanger is arranged at the top of a kiln body in a preheating section and comprises a smoke exhaust channel (1), corrugated stainless steel metal pipes (2), a hollow retaining wall (3), a flue cover plate (4) and air boxes (5), wherein the smoke exhaust channel (1) is arranged at the top of the kiln. Cold air blown into the flue heat exchanger by a combustion fan is used for realizing sufficient heat exchange with waste flue gas in flues, the temperature of combustion air can reach 150 DEG C, the combustion air is used for supporting combustion of a gas burner, gas consumption is reduced effectively, the temperature of the waste flue gas is reduced to about 200 DEG C without adding cold air, a smoke exhaust fan and a subsequent desulfurization and dust removal system cannot be affected, and the flue heat exchange device can be widely applied to tunnel kilns in smelting industry.
Description
One, technical field
The utility model belongs to smelts the engineering technical equipment, relates in particular to the flue heat-exchanger rig that the useless fume afterheat of a kind of tunnel cave utilizes.
Two, background technology
Traditional tunnel cave all is directly to enter in atmosphere through smoke exhaust fan the useless flue gas in the flue of preheating zone usually; And the maximum operation (service) temperature of smoke exhaust fan must not be above 250 ℃; Because useless flue-gas temperature is too high; Must convert coldly to useless flue gas,, avoid smoke exhaust fan to be burnt out to reach the purpose that reduces useless flue-gas temperature.High-temperature waste flue gas is converted cold wind,, increased the exhausting amount of smoke exhaust fan, the actual power of smoke exhaust fan is increased, not only cause the production power cost to increase, but also let a large amount of waste heats run off in vain though reduced the temperature of useless flue gas.Therefore how to make full use of useless fume afterheat, realize that energy-saving and cost-reducing is to smelt manufacturing enterprise, especially smelt production equipment manufacturing problem demanding prompt solution.
Three, summary of the invention
The purpose of the utility model is for market a kind of tunnel cave flue heat-exchanger rig simple in structure, easy for installation, energy-saving and cost-reducing to be provided.
The technical scheme of the utility model is: it comprises that kiln body and smoke evacuation system and circulation air path etc. that preheating section, furnace zone and cooling section are formed partly constitute; At preheating section kiln body top chimney heat exchanger is set; This chimney heat exchanger is to be made up of the discharge flue, stainless steel metal pipe, hollow barricade, flue cover plate and the bellows that are arranged at the kiln top, and said discharge flue is built by laying bricks or stones in kiln body preheating section top, builds hollow barricade in the centre by laying bricks or stones discharge flue is divided into two flues; And the stainless steel metal pipe that in two flues, is staggeredly placed; In order to contact with useless flue gas as far as possible for a long time, the heat in the useless flue gas of displacement is processed into corrugated with the stainless steel metal pipe effectively; Weld with the two ends bellows that are arranged at discharge flue respectively at its two ends; Chimney end bellows link to each other with the combustion fan airduct through pipeline, and other end bellows are connected with burner combustion air interface through pipeline, and the flue cover plate is covered in the top of discharge flue.
The beneficial effect of the utility model is: cold wind of squeezing into through combustion fan and the abundant heat exchange of useless flue gas in the flue for combustion system provides the combustion air about 150 ℃, effectively reduce amount of consumed gas; And useless flue-gas temperature is about 200 ℃; Promptly made full use of the waste heat in the useless flue gas, provided cost savings again, had reasonable in design; Advantages of simple structure and simple, easy to utilize.
Below in conjunction with accompanying drawing the utility model is further described.
Four, description of drawings
Fig. 1 is the utility model chimney heat exchanger longitudinal cross-section structural representation;
Fig. 2 is the utility model chimney heat exchanger lateral cross section structural representation.
Among the figure: 1 is discharge flue, and 2 is the stainless steel metal pipe, and 3 is hollow barricade, and 4 is the flue cover plate, and 5 is bellows.
Five, the specific embodiment
Like Fig. 1, shown in Figure 2, build by laying bricks or stones on the basis of conventional tunnel kiln smelting manufacturing enterprise, set up a cover chimney heat exchanger at the top of the preheating section of kiln body.Said chimney heat exchanger is to be made up of the discharge flue 1, stainless steel metal pipe 2, hollow barricade 3, flue cover plate 4 and the bellows 5 that are arranged at the kiln top; Said discharge flue 1 is to adopt 240 common bricks and 115 refractory brick to build by laying bricks or stones in kiln body preheating section top; Build hollow barricade 3 by laying bricks or stones in the centre discharge flue 1 is divided into two flues, this hollow barricade 3 is 240 refractory brickworks together that adopt clay brick to build by laying bricks or stones, evenly keeps somewhere plurality of holes on the wall; Gang up mutually to guarantee the useless flue gas in the discharge flue 1; And the stainless steel metal pipe 2 that in two flues, is staggeredly placed, cold air contact with useless flue gas in the discharge flue in the pipe in order to make as far as possible for a long time, replaces the heat in the flue gas that gives up effectively; Stainless steel metal pipe 2 adopts the 1Cr18Ni9Ti stainless steel tube to be processed into the wave pipeline; Weld with the two ends bellows that are arranged at discharge flue 15 respectively at its two ends, and chimney end bellows link to each other with the combustion fan airduct through pipeline, and other end bellows are connected with burner combustion air interface through pipeline.Flue cover plate 4 is to be made by adding two-layer 50mm aluminosilicate fiberboard on the employing galvanized sheet, it is covered on the discharge flue 1 it is sealed, to guarantee that discharge flue does not leak out.The enforcement of the utility model; Carry out abundant heat exchange owing to squeeze into cold wind in the ripple stainless steel metal pipe 2 of chimney heat exchanger through combustion fan with useless flue gas in the discharge flue 1, can realize that not only combustion air reaches 150 ℃ of be used for that the combustion gas burning chews combustion-supporting, effectively reduces amount of consumed gas; And the useless flue gas of discharging need not converted cold wind; Its temperature drops to about 200 ℃, can not exert an influence to smoke exhaust fan and follow-up desulfurization, dust pelletizing system, can be widely used on the tunnel cave of smelting industry.
Claims (2)
1. tunnel cave flue heat-exchanger rig; Kiln body that it is made up of preheating section, furnace zone and cooling section and smoke evacuation system and circulation air path constitute; It is characterized in that: chimney heat exchanger is set at preheating section kiln body top; This chimney heat exchanger is to be made up of the discharge flue (1) that is arranged at the kiln top, stainless steel metal pipe (2), hollow barricade (3), flue cover plate (4) and bellows (5); Said discharge flue (1) is built by laying bricks or stones in kiln body preheating section top, and build hollow barricade (3) in the centre by laying bricks or stones discharge flue (1) is divided into two flues, and the stainless steel metal pipe (2) that in two flues, is staggeredly placed; Weld with the two ends bellows (5) that are arranged at discharge flue (1) respectively at its two ends; Chimney end bellows link to each other with the combustion fan airduct through pipeline, and other end bellows are connected with the combustion-supporting airduct of burner through pipeline, and flue cover plate (4) is covered in the top of discharge flue (1).
2. tunnel cave flue heat-exchanger rig according to claim 1 is characterized in that: said stainless steel metal pipe (2) is bent into corrugated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219603U CN202141326U (en) | 2011-06-17 | 2011-06-17 | Flue heat exchange device for tunnel kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219603U CN202141326U (en) | 2011-06-17 | 2011-06-17 | Flue heat exchange device for tunnel kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141326U true CN202141326U (en) | 2012-02-08 |
Family
ID=45552382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120219603U Expired - Fee Related CN202141326U (en) | 2011-06-17 | 2011-06-17 | Flue heat exchange device for tunnel kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458852A (en) * | 2018-11-16 | 2019-03-12 | 阳城县天陶瓷有限公司 | Energy saving and environment friendly ceramics gas burns roller kilns |
| CN109758882A (en) * | 2019-03-04 | 2019-05-17 | 张君宇 | A kind of tunnel oven discharged gas fume reheating takes off white system and treatment process |
| CN109780555A (en) * | 2019-03-12 | 2019-05-21 | 申建军 | A kind of flue gas cool-down dust-extraction unit |
-
2011
- 2011-06-17 CN CN201120219603U patent/CN202141326U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458852A (en) * | 2018-11-16 | 2019-03-12 | 阳城县天陶瓷有限公司 | Energy saving and environment friendly ceramics gas burns roller kilns |
| CN109758882A (en) * | 2019-03-04 | 2019-05-17 | 张君宇 | A kind of tunnel oven discharged gas fume reheating takes off white system and treatment process |
| CN109780555A (en) * | 2019-03-12 | 2019-05-21 | 申建军 | A kind of flue gas cool-down dust-extraction unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Hu Guoyin Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Hu Guoyin Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20130617 |