CN106323015A - Preheating energy-saving cyclic utilization system for tunnel kiln - Google Patents
Preheating energy-saving cyclic utilization system for tunnel kiln Download PDFInfo
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- CN106323015A CN106323015A CN201510351819.7A CN201510351819A CN106323015A CN 106323015 A CN106323015 A CN 106323015A CN 201510351819 A CN201510351819 A CN 201510351819A CN 106323015 A CN106323015 A CN 106323015A
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- smoke
- utilization system
- tunnel kiln
- cyclic utilization
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Abstract
The invention provides a preheating energy-saving cyclic utilization system for a tunnel kiln. The preheating energy-saving cyclic utilization system comprises a tunnel kiln body. A preheating section is located at the initial end of the tunnel kiln body. The preheating energy-saving cyclic utilization system is characterized in that a smoke collecting hood is arranged at the front end of a channel of the preheating section of the tunnel kiln body and communicates with a smoke inlet pipe opening of a second smoke collecting pipe; a smoke exhausting fan is arranged in the channel of the preheating section of the tunnel kiln, multiple first smoke collecting pipes are arranged at the top end of the channel, and smoke outlets of the first smoke collecting pipes are formed in an inner cavity of the second smoke collecting pipe; and a smoke outlet pipe opening of the second smoke collecting pipe communicates with a confluence opening of the smoke exhausting fan, and an exhaust opening of the smoke exhausting fan is connected to the a smoke exhaust pipe. According to the preheating energy-saving cyclic utilization system for the tunnel kiln, the temperature of confluent hot gas is only about 400 DEG C, the smoke treated through purification equipment meets the second-level emission standard and is exhausted into the atmosphere, the hot gas energy is used in a cyclic manner, energy resources are saved, and besides the environmentally-friendly purpose is achieved.
Description
Technical field
The present invention relates to field of metallurgical equipment, particularly relate to a kind of tunnel cave pre-heating energy-saving cyclic utilization system for DRI.
Background technology
Tunnel kiln DRI equipment has been carried out for many years in China, existing tunnel kiln DRI is current domestic relatively advanced production Technology, but kiln material heating technique is directly to push truck in combustor to add thermal reduction, preheating utilizes waste gas residual heat to preheat in heating process, do not make full use of preheating section smoke evacuation system waste heat and preheat and process smoke evacuation waste gas, cause its technique to cause the most serious wasting of resources and environmental pollution.
Summary of the invention
Causing the most serious wasting of resources and environmental pollution to solve tunnel cave preheating section heating technique in prior art, the present invention proposes a kind of tunnel cave pre-heating energy-saving cyclic utilization system.
The technical scheme is that tunnel cave pre-heating energy-saving cyclic utilization system, it is characterised in that: the feeder connection of described tunnel cave preheating section is provided with exhaust fume collecting hood, exhaust fume collecting hood and the second smoke collection pipe and enters smoke orifice and communicate；Being provided with smoke exhaust fan in the passage of tunnel cave preheating section, and be provided with many first smoke collection pipes on passage top, the outlet flue of the first smoke collection pipe is arranged on the inner chamber of the second smoke collection pipe；The smoke mouth of pipe of the second smoke collection pipe communicates with the manifold port of smoke exhaust fan, and the air vent of smoke exhaust fan is connected to smoke exhaust pipe.
To improving further of technique scheme it is: described first smoke collection pipe is respectively arranged with 6 in tunnel cave preheating section both sides.
Beneficial effect:
Tunnel cave pre-heating energy-saving cyclic utilization system of the present invention, it is that reduction section produced (malleation) hot gas of burning fire hole (makes preheating section remain negative pressure) under the suction effect of smoke exhaust fan, thermal current enters preheating section and preheats truck material, hot gas is by behind preheating section region, again through exhaust fume collecting hood and the first smoke collection pipe (hot air temperature is 1100 DEG C of-1050 DEG C of scopes) the second smoke collection pipe of collecting, at this moment hot air temperature to 1050 DEG C-900 DEG C, hot gas after collecting converges through smoke exhaust fan and is flowed into smoke exhaust pipe, steam only has about 400 DEG C, after purified equipment processes, flue gas reaches secondary discharge standard and enters in air, not only recycle the steam energy, save resource, and reached the purpose of environmental protection；In technique scheme, the first smoke collection pipe is respectively arranged with 6 in preheating section both sides is to more effectively collect the steam heated first, more efficient recycles.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
As it is shown in figure 1, tunnel cave pre-heating energy-saving cyclic utilization system, including tunnel cave, preheating section 1 is positioned at the initial end of tunnel cave, is provided with exhaust fume collecting hood 2 at the feeder connection of tunnel cave preheating section 1, and exhaust fume collecting hood 2 communicates with the smoke orifice that enters of the second smoke collection pipe 3；Being provided with smoke exhaust fan 4 in the passage of tunnel cave preheating section, and be provided with many first smoke collection pipes 5 on passage top, the outlet flue of the first smoke collection pipe 5 is arranged on the inner chamber of the second smoke collection pipe 3；The smoke mouth of pipe of the second smoke collection pipe 3 communicates with the manifold port of smoke exhaust fan 4, and the air vent of smoke exhaust fan 4 is connected to smoke exhaust pipe 6.
Tunnel cave pre-heating energy-saving cyclic utilization system of the present invention, it is that reduction section produced (malleation) hot gas of burning fire hole (makes preheating section remain negative pressure) under the suction effect of smoke exhaust fan, thermal current enters preheating section and preheats truck material, hot gas is by after preheating section, again through exhaust fume collecting hood and the first smoke collection pipe (hot air temperature is 1100 DEG C of-1050 DEG C of scopes) the second smoke collection pipe of collecting, at this moment hot air temperature to 1050 DEG C-900 DEG C, hot gas after collecting converges through smoke exhaust fan and is flowed into smoke exhaust pipe, steam only has about 400 DEG C, after purified equipment processes, flue gas reaches secondary discharge standard and enters in air, not only recycle the steam energy, save resource, and reached the purpose of environmental protection；In technique scheme, the first smoke collection pipe is respectively arranged with 6 in preheating section both sides is to more effectively collect the steam heated first, more efficient recycles.
Claims (2)
1. tunnel cave pre-heating energy-saving cyclic utilization system, it is characterised in that: the Channel front end of tunnel cave preheating section is provided with exhaust fume collecting hood, exhaust fume collecting hood and the second smoke collection pipe and enters smoke orifice and communicate；Being provided with smoke exhaust fan in the passage of tunnel cave preheating section, and be provided with many first smoke collection pipes on passage top, the outlet flue of the first smoke collection pipe is arranged on the inner chamber of the second smoke collection pipe；The smoke mouth of pipe of the second smoke collection pipe communicates with the manifold port of smoke exhaust fan, and the air vent of smoke exhaust fan is connected to smoke exhaust pipe.
Tunnel cave pre-heating energy-saving cyclic utilization system the most according to claim 1, it is characterised in that: described first smoke collection pipe is respectively arranged with 6 in preheating section both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351819.7A CN106323015A (en) | 2015-06-24 | 2015-06-24 | Preheating energy-saving cyclic utilization system for tunnel kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351819.7A CN106323015A (en) | 2015-06-24 | 2015-06-24 | Preheating energy-saving cyclic utilization system for tunnel kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106323015A true CN106323015A (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351819.7A Pending CN106323015A (en) | 2015-06-24 | 2015-06-24 | Preheating energy-saving cyclic utilization system for tunnel kiln |
Country Status (1)
| Country | Link |
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| CN (1) | CN106323015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-06-24 CN CN201510351819.7A patent/CN106323015A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |