CN209820183U - Tempering furnace oxygen boosting flue gas recirculation combustion system - Google Patents
Tempering furnace oxygen boosting flue gas recirculation combustion system Download PDFInfo
- Publication number
- CN209820183U CN209820183U CN201920531015.9U CN201920531015U CN209820183U CN 209820183 U CN209820183 U CN 209820183U CN 201920531015 U CN201920531015 U CN 201920531015U CN 209820183 U CN209820183 U CN 209820183U
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- CN
- China
- Prior art keywords
- flue gas
- unit
- furnace
- oxygen
- heating chamber
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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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 36
- 239000003546 flue gas Substances 0.000 title claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000005496 tempering Methods 0.000 title claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 17
- 239000001301 oxygen Substances 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 239000000779 smoke Substances 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Abstract
The utility model discloses a tempering furnace oxygen boosting flue gas recirculation combustion system belongs to industrial furnace burning field, the method includes: leading out the flue gas in the heating chamber of the kiln; dividing the guided flue gas into two paths, wherein one path is combusted by assisting with fuel and oxygen, and the other path is mixed with the combusted flue gas; and conveying the mixed flue gas back to the furnace kiln heating chamber. The system comprises a combustion chamber and a smoke exhaust unit which are connected with a furnace heating chamber, a combustor connected with the combustion chamber, an oxygen unit, a fuel unit and a circulating flue gas unit which are connected with the combustor, wherein the circulating flue gas unit is also respectively connected with the furnace heating chamber and the combustion chamber. The utility model discloses can realize the promotion of industrial furnace stove efficiency, reduce the carbon emission, reduce flue gas NOx's content, promote furnace kiln thermal efficiency, improve furnace kiln heating furnace ability, and be not very big to original combustion system's change, can effectively be applied to the industrial furnace kiln device of having built or having built.
Description
Technical Field
The utility model belongs to industrial furnace burning field relates to an efficiency promotes and flue gas emission pollution control technique, in particular to tempering furnace oxygen boosting flue gas recirculation combustion system.
Background
The energy is a material basis for the survival and development of the human society, and each improvement and replacement of the energy greatly promotes the progress of human civilization, but the energy resource creates great wealth for human beings and also brings a series of environmental pollution problems. With the increasing pressure on energy, resources and environment, the requirements on the improvement of the energy efficiency and the ultra-clean emission of pollutants are higher and higher.
An industrial furnace is a device for heating materials by using energy released by fuel combustion, is widely applied to production links of roasting, drying, melting, smelting, heating, heat treatment and the like of the materials in the industrial field of China, consumes a large amount of energy and simultaneously discharges a large amount of industrial waste gas.
The tempering furnace is an industrial heating device for tempering heat treatment of materials, and in order to improve the temperature uniformity in the tempering furnace, a part of the tempering furnace adopts a high-temperature fan to force smoke circulation, thereby achieving the purpose of improving the temperature uniformity in the tempering furnace. In order to improve the energy utilization rate of the tempering furnace, reduce the pollutant emission and reduce the carbon emission, a new system and a new method for oxygen-enriched flue gas recirculation combustion of the tempering furnace are needed to be provided.
SUMMERY OF THE UTILITY MODEL
There is signing here, the utility model provides a tempering furnace oxygen boosting flue gas recirculation combustion system not only can improve the heat transfer efficiency in the tempering furnace, reduces the use amount of the energy, can also control the temperature of flame center, reduces the production of pollutant, can also reduce carbon and discharge simultaneously.
The utility model discloses a realize through following technical scheme:
the utility model also provides a tempering furnace oxygen boosting flue gas recirculation combustion system, include: the furnace comprises a combustion chamber and a smoke exhaust unit which are connected with a furnace heating chamber, a combustor connected with the combustion chamber, an oxygen unit, a fuel unit and a circulating flue gas unit which are connected with the combustor, wherein the circulating flue gas unit is also respectively connected with the furnace heating chamber and the combustion chamber.
Furthermore, the circulating flue gas unit is respectively connected with the combustion chamber, the furnace heating chamber and the combustor through a circulating fan.
Furthermore, the oxygen unit, the fuel unit and the circulating flue gas unit respectively comprise a pipeline, a valve and an instrument, wherein the valve and the instrument are arranged on the pipeline, and the instrument comprises a temperature sensor, a flowmeter and a pressure gauge.
Further, the smoke exhaust unit comprises a smoke exhaust fan and a heat exchanger arranged between the furnace heater and the smoke exhaust fan, and the heat exchanger is used for heat exchange between the discharged smoke of the furnace heating chamber and the fuel.
The utility model has the advantages that: the utility model discloses a tempering furnace oxygen boosting flue gas recirculation combustion system and method can realize the promotion of industrial furnace kiln efficiency, reduce the carbon emission, reduce flue gas NOx's content, promote furnace kiln thermal efficiency, improve furnace kiln heating furnace ability, and be not very big to original combustion system's change, can effectively be applied to the industrial furnace kiln device of having built or having built.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an oxygen-enriched flue gas recirculation combustion system of a tempering furnace of the present invention;
description of the labeling: a combustion chamber 1; a furnace heating chamber 2; a burner 3; a circulating fan 4; a heat exchanger 5; and a smoke exhaust fan 6.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
As shown in figure 1, the utility model provides an oxygen-enriched flue gas recirculation combustion system of a tempering furnace, which comprises a combustion chamber 1, a furnace heating chamber 2, a fuel unit, an oxygen unit, a circulating flue gas unit, a smoke exhaust unit and a combustor 3. The combustion unit consists of a pipeline, a valve, an instrument and the like; the oxygen unit is used for providing oxygen and consists of an oxygen generator set, a pipeline, a valve, an instrument and the like; the circulating flue gas unit consists of a circulating fan 4, a pipeline, a valve, an instrument and the like; the oxygen unit, the fuel unit and the circulating flue gas unit are all connected with the combustor 3 through pipelines, flue gas combusted by the combustor 3 is mixed with flue gas conveyed by a circulating fan 4 in a combustion chamber 1, the flue gas reaches a set temperature and then enters a furnace heating chamber 2 through the pipelines, heating of materials is completed, a part of the cooled flue gas enters the combustion chamber 1 and the combustor 3 through the circulating fan 4 in a recycling mode and is used for assisting combustion and cooling the flue gas uniformly, and a part of the cooled flue gas is discharged through a smoke exhaust fan after heat exchange with fuel provided by the fuel unit through a heat exchanger 7. Therefore, the circulation is repeated continuously, and one circulation is realized. Because the system adopts pure oxygen and flue gas to replace the traditional air as the combustion improver, the volume of the discharged flue gas is greatly reduced, the energy is saved, and the furnace kiln is improvedThe heat efficiency, at the same time, due to the effect of the circulating flue gas, the high temperature in the flame center area is effectively inhibited, the low NOx combustion is realized, and in addition, due to the N in the flue gas2Reduction of CO2And H2The increase of O greatly improves the blackness of furnace gas of a hearth, thereby enhancing the heat transfer efficiency in the furnace and improving the productivity of the furnace.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a tempering furnace oxygen boosting flue gas recirculation combustion system which characterized in that includes: the device comprises a combustion chamber (1) connected with a furnace heating chamber (2), a smoke exhaust unit, a combustor (3) connected with the combustion chamber, an oxygen unit, a fuel unit and a circulating smoke unit, wherein the oxygen unit, the fuel unit and the circulating smoke unit are connected with the combustor, and the circulating smoke unit is also connected with the furnace heating chamber and the combustion chamber respectively.
2. An oxygen-enriched flue gas recirculation combustion system of a tempering furnace according to claim 1, characterized in that said circulation flue gas unit is connected with the combustion chamber, the kiln heating chamber and the burner respectively by a circulation fan (4).
3. The tempering furnace oxygen-enriched flue gas recirculation combustion system according to claim 1, wherein the oxygen unit, the fuel unit and the circulating flue gas unit each comprise a pipeline, and a valve and a meter arranged on the pipeline, and the meter comprises a temperature sensor, a flow meter and a pressure meter.
4. An oxygen-enriched flue gas recirculation combustion system of a tempering furnace according to claim 1, characterized in that said smoke exhaust unit comprises a smoke exhaust fan (6) and a heat exchanger (5) arranged between the furnace heater and the smoke exhaust fan, said heat exchanger being used for heat exchange between the exhaust flue gas of the furnace heating chamber and the fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531015.9U CN209820183U (en) | 2019-04-18 | 2019-04-18 | Tempering furnace oxygen boosting flue gas recirculation combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531015.9U CN209820183U (en) | 2019-04-18 | 2019-04-18 | Tempering furnace oxygen boosting flue gas recirculation combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820183U true CN209820183U (en) | 2019-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920531015.9U Withdrawn - After Issue CN209820183U (en) | 2019-04-18 | 2019-04-18 | Tempering furnace oxygen boosting flue gas recirculation combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209820183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945669A (en) * | 2019-04-18 | 2019-06-28 | 重庆赛迪热工环保工程技术有限公司 | A kind of oxygen-enriched flue gas recirculation combustion method of tempering furnace and system |
-
2019
- 2019-04-18 CN CN201920531015.9U patent/CN209820183U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945669A (en) * | 2019-04-18 | 2019-06-28 | 重庆赛迪热工环保工程技术有限公司 | A kind of oxygen-enriched flue gas recirculation combustion method of tempering furnace and system |
| CN109945669B (en) * | 2019-04-18 | 2024-01-23 | 重庆赛迪热工环保工程技术有限公司 | Method and system for recycling and burning oxygen-enriched flue gas of tempering furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191220 Effective date of abandoning: 20240123 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191220 Effective date of abandoning: 20240123 |