CN105403061A - Energy saving kiln with cooling waste heat cyclically used for improving combustion supporting air temperature - Google Patents
Energy saving kiln with cooling waste heat cyclically used for improving combustion supporting air temperature Download PDFInfo
- Publication number
- CN105403061A CN105403061A CN201510927025.0A CN201510927025A CN105403061A CN 105403061 A CN105403061 A CN 105403061A CN 201510927025 A CN201510927025 A CN 201510927025A CN 105403061 A CN105403061 A CN 105403061A
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- China
- Prior art keywords
- heat exchange
- heat
- tail cold
- draw
- supervisor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
Abstract
The invention relates to a kiln, in particular to an energy saving kiln with cooling waste heat cyclically used for improving the combustion supporting air temperature. The kiln comprises a tail cold heat drawing main pipe communicated with a tail cold area. The tail cold drawing main pipe is connected with a circulating air pipe through a tail cold exhaust fan. The circulating air pipe extends towards a slow cooling area. The slow cooling area is provided with a heat exchange pipe, a first heat exchange air pipe and a second heat exchange air pipe, wherein the first heat exchange air pipe and the second heat exchange air pipe are connected with the heat exchange pipe. The first heat exchange air pipe is communicated with the circulating air pipe, and the second heat exchange air pipe is connected with a heat exchange main pipe. The heat exchange main pipe is communicated with the kiln slow cooling area. The tail of the heat exchange main pipe is connected with a combustion supporting air outlet through a heat exchange draught fan. According to the energy saving kiln with cooling waste heat cyclically used for improving the combustion supporting air temperature, heat is repeatedly utilized, ineffective emission of heat is reduced, and the energy utilization rate is increased.
Description
Technical field
The present invention relates to a kind of kiln, especially a kind of energy saving kiln recycling cooling residual heat raising combustion air temperature.
Background technology
Quench zone, slow cooling district and tail cold-zone is subdivided into the salband of existing horizontal kiln (as roller kilns, tunnel cave).Wherein quench zone is first cooling stage after high temperature burns till, and slow cooling district is the second cooling stage, and tail cold-zone is the 3rd cooling stage.At the end of burning till, can cool fast because ceramic product inside exists liquid phase, therefore be referred to as quench zone.Can there is Volume Changes and speed at the crystal formation transfer point of 573 DEG C in the silica in ceramic product, easily produce stress and ftracture, and therefore needing to take slowly the type of cooling indirectly behind quench zone, ftractures to prevent product.Through slow cooled ceramic product temperature about about 400 DEG C, this district can directly to product quenching to kiln discharge temperature, to enhance productivity, this stage claims this to be tail cold-zone or whole cold-zone.The hot blast temperature of tail cold-zone about about 100 DEG C, existing way is generally directly be discharged in air by chimney, not only causes thermal pollution to air, also can increase product specific energy consumption.
Summary of the invention
In order to solve above-mentioned heat waste problem, the invention provides a kind of energy saving kiln recycling cooling residual heat raising combustion air temperature.
To achieve these goals, the present invention adopts following technical scheme:
This kiln comprises the tail cold-draw fan housing be communicated with tail cold-zone, tail cold-draw heat supervisor, tail cold-draw blower fan, described tail cold-draw fan housing is used for the hot blast in kiln being delivered to tail cold-draw heat supervisor and being connected with tail cold-draw fans entrance, the outlet of tail cold-draw blower fan is for circulation is for airduct, circulation extends to slow cooling district for airduct, inside, slow cooling district be provided with branched equally distributed indirect cooling arm and with the first heat exchange confession airduct and the second heat exchange exhaust column indirectly cool arm and be connected, the first described heat exchange is communicated with for airduct with circulation for airduct, the second described heat exchange exhaust column is connected with heat exchange exhausting supervisor, described heat exchange exhausting supervisor, heat-exchange fan is arranged in Yao Ti slow cooling district, the entrance of heat-exchange fan is heat exchange exhausting supervisor, outlet is provided with the confession airduct leading to combustion fan, what lead to drier supplies airduct and the chimney leading to air.
Preferably, Hand-operated butterfly valve is provided with between described tail cold-draw heat supervisor and heat exchange exhausting supervisor.
Preferably, described tail cold-draw heat supervisor is communicated with by tail cold-draw fan housing with tail cold-zone.
Preferably, described heat exchange supervisor is communicated with by heat exchange draught hood with slow cooling district.
Preferably, described heat-exchange fan is also connected with heat exchange chimney and waste heat interface tube.
Owing to have employed said structure, in a kind of power-saving kiln stove recycling cooling residual heat raising combustion air temperature of the present invention, the hot-air of tail cold-zone is extracted out through tail cold-draw heat supervisor, again through tail cold-draw blower fan, circulation airduct, heat exchange airduct is delivered in the branched indirect cooling arm of cooling indirectly in kiln, heated by hot-air in kiln (600 DEG C ~ 650 DEG C), can by air heat to more than 180 DEG C, the hot-air high temperature hot gas mixing of releasing again and by heat exchange draught hood, temperature will more than 250 DEG C, this partial air is under the effect of heat-exchange fan, successively by heat exchange airduct, heat exchange is responsible for, be sent to high combustion air exit, prepare for lower chilling heats again.Make heat obtain recycling, decrease the invalid discharge of heat, improve efficiency of energy utilization.
The program has reclaimed the heat of cooling zone to greatest extent, the all hot blasts in tail cold-zone carry out heat exchange by equally distributed indirect cooling arm branched in slow cooling district and slow cooling district after tail cold-zone draught hood is extracted out, then enter after mixing with the high temperature hot gas of directly extracting out through heat exchange draught hood in cold-zone of postponing that to send to burner after quench zone is heated again combustion-supporting; This mode that is multistage, laser heating is not only clean by the heat recovery of cooling zone, and improves combustion air temperature, reaches maximise power-saving.In addition, in slow cooling district all adjacent indirect cooling arm outlet and inlet directions staggered, arrange continuously, wherein one is entered another from one end and brings out, and an adjacent outlet and inlet direction in contrast, extends by that analogy, can reduce the temperature difference in kiln like this.
Enter compared with slow cooling district cools with the direct use room air of routine, using the hot blast of about 100 DEG C, tail cold-zone to be used for the cooling of slow cooling district can be milder, add the indirect type of cooling and indirectly cool arm interlaced arrangement and reduce this district's internal difference in temperature, effectively prevent distortion and cracking defect that ceramic product may occur through slow cooling district, improve product percent of pass.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the heat-exchange tube syndeton schematic diagram of the embodiment of the present invention;
Fig. 3 is the heat exchange draught hood place structural representation of the embodiment of the present invention.
Detailed description of the invention
As Figure 1-3, a kind of energy saving kiln recycling cooling residual heat raising combustion air temperature of the present invention comprises the tail cold-draw fan housing 13 be communicated with tail cold-zone 1, tail cold-draw heat supervisor 2, tail cold-draw blower fan 3, hot blast in kiln is delivered to tail cold-draw heat supervisor 2 and is connected with tail cold-draw blower fan 3 entrance by tail cold-draw fan housing 13, outlet is for circulation is for airduct 4, circulation extends to slow cooling district 5 for airduct 4, slow cooling district 5 be provided with indirect cooling arm 6 and with the first heat exchange confession airduct 7 and the second heat exchange exhaust column 8 indirectly cool arm 6 and be connected, the first described heat exchange is communicated with for airduct 4 with circulation for airduct 7, the second described heat exchange exhaust column 8 is connected with heat exchange exhausting supervisor 9, described heat exchange exhausting supervisor 9, heat-exchange fan 10 is arranged in Yao Ti slow cooling district 5, the entrance of heat-exchange fan 10 is heat exchange exhausting supervisor 9, outlet is provided with the confession airduct 11 leading to combustion fan, what lead to drier supplies airduct 16 and the chimney 15 leading to air.
Concrete, in the present embodiment, between described tail cold-draw heat supervisor 2 and heat exchange exhausting supervisor 9, be provided with Hand-operated butterfly valve 12.
In the present embodiment, after the hot blast that the described draught hood 14 near slow cooling district 5 is extracted out mixes with the heat exchange exhausting hot blast be responsible in 9, enter heat-exchange fan 10.
During work, in kiln, hot-air is extracted out through tail cold-draw heat supervisor 2, for airduct 7, hot-air is delivered to each root along in the indirect cooling arm 6 of slow cooling district cross sectional arrangement through tail cold-draw blower fan 3, circulation airduct 4, first heat exchange again, export and be connected with the second heat exchange exhaust column 8.After hot-air (about 600 DEG C) heating, temperature can reach more than 180 DEG C, the high temperature hot gas of releasing with heat exchange draught hood 14 again mixes, temperature can more than 250 DEG C, this part hot-air is under the effect of heat-exchange fan 10, by delivering to combustion air entrance for airduct 11, prepare for being continued to improve combustion air temperature by quench zone; Heat-exchange fan 10 exports unnecessary hot blast by feeding drier dry base substrate for airduct 16, also has residue emptying by chimney 15.The program has reclaimed the heat of cooling zone to greatest extent, the all hot blasts in tail cold-zone carry out heat exchange by equally distributed indirect cooling arm 6 branched in slow cooling district 5 with slow cooling district 5 after extracting out from tail cold-zone draught hood 13, then enter after mixing with the high temperature hot gas of directly extracting out through heat exchange draught hood 14 in cold-zone 5 of postponing that to send to burner after quench zone is heated again combustion-supporting; This mode that is multistage, laser heating is not only clean by the heat recovery of cooling zone, and improves combustion air temperature, reaches maximise power-saving.In addition, in slow cooling district 5 all adjacent indirect cooling arm 6 outlet and inlet directions staggered, arrange continuously, wherein one is entered another from one end and brings out, and an adjacent outlet and inlet direction in contrast, extends by that analogy, can reduce the temperature difference in kiln like this.Enter compared with slow cooling district 5 cools with the direct use room air of routine, the hot blast of about 100 DEG C of tail cold-zone 1 is used to be used for slow cooling district 5 meeting of cooling milder, add the indirect type of cooling and indirectly cool arm 6 interlaced arrangement and reduce the temperature difference, effectively prevent distortion and cracking defect that ceramic product may occur through slow cooling district, improve product percent of pass.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. one kind recycles the energy saving kiln that cooling residual heat improves combustion air temperature, it is characterized in that: comprise the tail cold-draw fan housing be communicated with tail cold-zone, tail cold-draw heat supervisor, tail cold-draw blower fan, described tail cold-draw fan housing is used for the hot blast in kiln being delivered to tail cold-draw heat supervisor and being connected with tail cold-draw fans entrance, the outlet of tail cold-draw blower fan is for circulation is for airduct, circulation extends to slow cooling district for airduct, inside, slow cooling district be provided with branched equally distributed indirect cooling arm and with the first heat exchange confession airduct and the second heat exchange exhaust column indirectly cool arm and be connected, the first described heat exchange is communicated with for airduct with circulation for airduct, the second described heat exchange exhaust column is connected with heat exchange exhausting supervisor, described heat exchange exhausting supervisor, heat-exchange fan is arranged in Yao Ti slow cooling district, the entrance of heat-exchange fan is heat exchange exhausting supervisor, outlet is provided with the confession airduct leading to combustion fan, what lead to drier supplies airduct and the chimney leading to air.
2. a kind ofly as claimed in claim 1 recycle the energy saving kiln that cooling residual heat improves combustion air temperature, it is characterized in that: between described tail cold-draw heat supervisor and heat exchange exhausting supervisor, be provided with Hand-operated butterfly valve.
3. a kind ofly as claimed in claim 2 recycle the energy saving kiln that cooling residual heat improves combustion air temperature, it is characterized in that: described tail cold-draw heat supervisor is communicated with by tail cold-draw fan housing with tail cold-zone.
4. a kind ofly as claimed in claim 3 recycle the energy saving kiln that cooling residual heat improves combustion air temperature, it is characterized in that: described heat exchange supervisor is communicated with by heat exchange draught hood with slow cooling district.
5. a kind ofly as claimed in claim 4 recycle the energy saving kiln that cooling residual heat improves combustion air temperature, it is characterized in that: described heat-exchange fan is also connected with heat exchange chimney and waste heat interface tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927025.0A CN105403061B (en) | 2015-12-14 | 2015-12-14 | It is a kind of to recycle the energy saving kiln that cooling residual heat improves combustion-supporting air temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927025.0A CN105403061B (en) | 2015-12-14 | 2015-12-14 | It is a kind of to recycle the energy saving kiln that cooling residual heat improves combustion-supporting air temperature |
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| CN105403061A true CN105403061A (en) | 2016-03-16 |
| CN105403061B CN105403061B (en) | 2017-07-25 |
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| CN201510927025.0A Active CN105403061B (en) | 2015-12-14 | 2015-12-14 | It is a kind of to recycle the energy saving kiln that cooling residual heat improves combustion-supporting air temperature |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766970A (en) * | 2017-03-08 | 2017-05-31 | 广东中窑窑业股份有限公司 | A kind of recuperation of heat ducting system for kiln |
| CN108151544A (en) * | 2018-01-17 | 2018-06-12 | 广东中鹏热能科技有限公司 | A kind of energy saving roller kiln of adverse currentcooling system |
| CN108180764A (en) * | 2018-01-22 | 2018-06-19 | 卢爱玲 | A kind of ceramic kiln folds warm formula oxygenation and takes out hot systems |
| CN109341333A (en) * | 2018-10-16 | 2019-02-15 | 广东科达洁能股份有限公司 | A kind of big specification foamed ceramic roller kilns device |
| CN110487071A (en) * | 2019-08-28 | 2019-11-22 | 佛山市德力泰科技有限公司 | A kind of cooling plot structure of energy-saving binary channels roller kilns |
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| CN201875734U (en) * | 2010-11-19 | 2011-06-22 | 佛山市摩德娜机械有限公司 | Combustion supporting air heating and energy-saving device and ceramic firing kiln |
| CN202092473U (en) * | 2011-05-13 | 2011-12-28 | 卢爱玲 | Residual heat utilization device used for oxygen addition and combustion supporting of ceramic kiln |
| JP2013130366A (en) * | 2011-12-22 | 2013-07-04 | Lixil Corp | Firing furnace |
| CN204154107U (en) * | 2014-10-24 | 2015-02-11 | 王新华 | Roller kilns, tunnel cave combustion air energy saver |
| CN104567438A (en) * | 2013-10-24 | 2015-04-29 | 湖北浠水科美机械有限公司 | Waste heat recovery energy-saving ceramic kiln with heat exchange pipes arranged in kiln top |
| CN205228190U (en) * | 2015-12-14 | 2016-05-11 | 广东摩德娜科技股份有限公司 | Cyclic utilization cooling waste heat improves energy -conserving kiln of combustion -supporting wind -warm syndrome degree |
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2015
- 2015-12-14 CN CN201510927025.0A patent/CN105403061B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201875734U (en) * | 2010-11-19 | 2011-06-22 | 佛山市摩德娜机械有限公司 | Combustion supporting air heating and energy-saving device and ceramic firing kiln |
| CN202092473U (en) * | 2011-05-13 | 2011-12-28 | 卢爱玲 | Residual heat utilization device used for oxygen addition and combustion supporting of ceramic kiln |
| JP2013130366A (en) * | 2011-12-22 | 2013-07-04 | Lixil Corp | Firing furnace |
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| CN204154107U (en) * | 2014-10-24 | 2015-02-11 | 王新华 | Roller kilns, tunnel cave combustion air energy saver |
| CN205228190U (en) * | 2015-12-14 | 2016-05-11 | 广东摩德娜科技股份有限公司 | Cyclic utilization cooling waste heat improves energy -conserving kiln of combustion -supporting wind -warm syndrome degree |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766970A (en) * | 2017-03-08 | 2017-05-31 | 广东中窑窑业股份有限公司 | A kind of recuperation of heat ducting system for kiln |
| CN108151544A (en) * | 2018-01-17 | 2018-06-12 | 广东中鹏热能科技有限公司 | A kind of energy saving roller kiln of adverse currentcooling system |
| CN108180764A (en) * | 2018-01-22 | 2018-06-19 | 卢爱玲 | A kind of ceramic kiln folds warm formula oxygenation and takes out hot systems |
| CN109341333A (en) * | 2018-10-16 | 2019-02-15 | 广东科达洁能股份有限公司 | A kind of big specification foamed ceramic roller kilns device |
| CN109341333B (en) * | 2018-10-16 | 2024-02-09 | 佛山市科达机电有限公司 | Roller kiln device for large-size foamed ceramics |
| CN110487071A (en) * | 2019-08-28 | 2019-11-22 | 佛山市德力泰科技有限公司 | A kind of cooling plot structure of energy-saving binary channels roller kilns |
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| Publication number | Publication date |
|---|---|
| CN105403061B (en) | 2017-07-25 |
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