CN203336958U - Energy saving tunnel kiln - Google Patents
Energy saving tunnel kiln Download PDFInfo
- Publication number
- CN203336958U CN203336958U CN2012207325354U CN201220732535U CN203336958U CN 203336958 U CN203336958 U CN 203336958U CN 2012207325354 U CN2012207325354 U CN 2012207325354U CN 201220732535 U CN201220732535 U CN 201220732535U CN 203336958 U CN203336958 U CN 203336958U
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- tunnel kiln
- kiln
- zone
- tunnel
- preheating zone
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Abstract
Provided is an energy saving tunnel kiln. The kiln is provided with a tunnel kiln preheating zone, a tunnel kiln firing zone, a tunnel kiln cooling zone, a tunnel kiln inlet, a tunnel kiln outlet and a burner air hole. The negative pressure fan arranged on the tunnel kiln preheating zone enables pressure to achieve 12kpa. Because of the countercurrent principle, heat of the firing zone is conducted to the preheating zone, temperature is slowly increased along with the firing zone, thus burners are reduced, and energy consumption of the kiln is naturally reduced.
Description
Technical field
The utility model relates to continous way and burns till Thermal Equipment, especially relates to a kind of energy-saving tunnel kiln.
Background technology
Tunnel kiln is widely used in baked for producing, abrasive material and the metallurgy industry of ceramic product, has the production serialization, the cycle is short, output is large, quality is high, the advantage such as energy-conservation, and therefore most of Production of Ceramics has all adopted tunnel cave to burn till; Tunnel kiln is generally a long linear tunnel, and structure is three bands, is respectively preheating zone, clinkering zone, salband, and fixing wall and vault are arranged at its both sides and top, on the track that lay bottom, is moving kiln car; Combustion apparatus is located at the both sides, middle part of tunnel cave, formed fixing high temperate zone--clinkering zone, the high-temperature flue gas that burning produces is under the effect of tunnel cave front end chimney or air-introduced machine, along tunnel, to the kiln hood direction, flow, preheating enters the goods in kiln step by step simultaneously, and this section formed the preheating zone of tunnel cave; Kiln tail at tunnel cave blasts cold wind, the goods of latter a section in the cooling tunnel kiln, then waste heat is extracted out and sent into the thermal source of drier as dried, this section just formed the salband of tunnel cave.
As everyone knows, main three of Production of Ceramics large block costs: burn till, manually, raw material; Artificial and raw material, comprise that fuel is along with social development certainly, and its cost also can be more and more higher, how to save consumption reduction, reduces costs, and becomes leading superiority, so the energy-conservation of kiln is the target that manufacturing enterprise is pursued.
Summary of the invention
The purpose of this utility model is that the combustion air used for existing most tunnel caves is natural wind or is blown into cold wind at salband, thereby makes the air heating; Although UTILIZATION OF VESIDUAL HEAT IN, because, in the hot-air of extracting out, sneak into the waste gas burnt in very how high temperate zone, so cause oxygen deficiency in combustion air, combustion efficiency is not good; The hot-air swapped out with heat exchanger is fresh hot-air, can reach best combustion-supporting effect, heat exchanger is placed on to Cooling Section of Tunnel Kiln, carry out preheated air with the waste heat on goods, fresh air can be preheating to 300-600 ℃ of left and right, hot-air is delivered to high temperate zone burner, do combustion air, can reach energy-conservation purpose; The aperture that is located at the nozzles pore of tunnel kiln clinkering zone is 1.5mm, establish 7, nozzles pore on the tunnel kiln preheating zone, but this saving mode is energy-conservation certain limitation arranged, the utility model on this basis, again adjust kiln, a kind of more energy-saving tunnel kiln is provided.
The utility model is provided with tunnel kiln preheating zone, tunnel kiln clinkering zone, tunnel kiln salband, tunnel kiln import and tunnel kiln outlet, nozzles pore; Described tunnel kiln preheating zone is provided with negative-pressure air fan.
The aperture of described nozzles pore is 1.2mm.
Compare with existing tunnel kiln, the utlity model has following outstanding advantages:
The preheating zone design and installation negative-pressure air fan, allow pressure reach negative 12kpa, due to countercurrent action, the clinkering zone heat is toward the preheating zone conduction, temperature slowly raises with clinkering zone, reduces like this nozzles, the kiln energy consumption is reduction naturally just.
2. change the aperture of present nozzles pore into 1.2mm by original 1.5mm, increase out pressure of gas injection, make when burning till, the volume that gas injection can disperse out the time can be larger, mixing with air also can be more even, and, when total gas pressure is too high, it is too many that combustion gas is unlikely to output, cause atmosphere to change and waste gas.
The accompanying drawing explanation
The structure that Fig. 1 is the utility model embodiment forms schematic diagram.
The specific embodiment
Referring to Fig. 1, the utility model embodiment is provided with tunnel kiln preheating zone 3, tunnel kiln clinkering zone 4, tunnel kiln salband 5, tunnel kiln import 1 and tunnel kiln outlet 6, nozzles pore 21; Described tunnel kiln preheating zone is provided with negative-pressure air fan 7; The aperture of described nozzles pore 21 is 1.2mm.
While using tunnel kiln clinkering zone heating flame, mix combustion gas and air, the ratio theoretical value of regulating gas and air has more 3-5%, makes the combustion gas can completing combustion; Along with the rising of tunnel kiln burning zone temperature, then the furnace pressure of preheating zone is transferred to negative pressure, allows the heat adverse current of clinkering zone to preheating zone, can more fully use like this heat of kiln, can save 15% combustion gas.
Claims (1)
1. an energy-saving tunnel kiln, is characterized in that being provided with tunnel kiln preheating zone, tunnel kiln clinkering zone, tunnel kiln salband, tunnel kiln import and tunnel kiln outlet, nozzles pore; Described tunnel kiln preheating zone is provided with negative-pressure air fan; The aperture of described nozzles pore is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207325354U CN203336958U (en) | 2012-12-26 | 2012-12-26 | Energy saving tunnel kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207325354U CN203336958U (en) | 2012-12-26 | 2012-12-26 | Energy saving tunnel kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203336958U true CN203336958U (en) | 2013-12-11 |
Family
ID=49705628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207325354U Expired - Fee Related CN203336958U (en) | 2012-12-26 | 2012-12-26 | Energy saving tunnel kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203336958U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800920A (en) * | 2018-07-12 | 2018-11-13 | 宜宾市兴诺节能耐火材料有限责任公司 | A kind of flat flow tunnel oven |
| CN109442988A (en) * | 2018-12-13 | 2019-03-08 | 山西北斗星新材料有限公司 | A kind of kiln car formula kiln with waste-heat recovery device |
| CN109442987A (en) * | 2018-12-13 | 2019-03-08 | 山西北斗星新材料有限公司 | A kind of kiln car formula kiln |
-
2012
- 2012-12-26 CN CN2012207325354U patent/CN203336958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800920A (en) * | 2018-07-12 | 2018-11-13 | 宜宾市兴诺节能耐火材料有限责任公司 | A kind of flat flow tunnel oven |
| CN109442988A (en) * | 2018-12-13 | 2019-03-08 | 山西北斗星新材料有限公司 | A kind of kiln car formula kiln with waste-heat recovery device |
| CN109442987A (en) * | 2018-12-13 | 2019-03-08 | 山西北斗星新材料有限公司 | A kind of kiln car formula kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20161226 |