CN210568460U - Energy-saving second grade denitration incinerator - Google Patents
Energy-saving second grade denitration incinerator Download PDFInfo
- Publication number
- CN210568460U CN210568460U CN201921104284.3U CN201921104284U CN210568460U CN 210568460 U CN210568460 U CN 210568460U CN 201921104284 U CN201921104284 U CN 201921104284U CN 210568460 U CN210568460 U CN 210568460U
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- Prior art keywords
- pipeline
- heat exchanger
- mutually
- anger
- giving vent
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- Expired - Fee Related
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003546 flue gas Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000010791 quenching Methods 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003345 natural gas Substances 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 7
- 238000003795 desorption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses an energy-saving second grade denitration burns burning furnace, including burning furnace, quench tower, sack cleaner, heat exchanger and SCR denitration tower, burn the first flue gas pipeline of giving vent to anger of burning furnace and put through with the quench tower mutually, the pipeline of giving vent to anger of quench tower is put through with the sack cleaner mutually, the pipeline of giving vent to anger of sack cleaner and the heat exchanger heat epaxial intake duct of heating put through mutually, the pipeline of giving vent to anger of heat exchanger heat epaxial is put through with the induced air machine mutually, the pipeline of giving vent to anger of induced air machine puts through with the SCR denitration tower mutually, burn the second flue gas pipeline of burning furnace top and put through with the air inlet of burning in the heat exchanger hot gas pipeline mutually, the gas outlet of burning. The utility model discloses install the heat exchanger additional, contain the heat in the flue gas of SCR denitration, utilize its waste heat to preheat sack ware back flue gas to reduce the quantity of natural gas, effective energy saving practices thrift manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of burning furnace is burnt in the second grade denitration, concretely relates to energy-saving second grade denitration burns burning furnace.
Background
The traditional process for denitration in the secondary denitration incinerator is that a small amount of residual NOX in flue gas enters a waste heat boiler, ammonia water is sprayed into the waste heat boiler to be subjected to contact reaction and desorption in a temperature range of 950-1050 ℃, the flue gas subjected to three-stage segmented NOX desorption sequentially passes through a quench tower, a bag-type dust collector, a wet-method deacidification tower, an induced draft fan and a chimney to reach the standard and is discharged into the atmosphere, however, the temperature of the flue gas discharged out of the bag-type dust collector of the secondary denitration device is low, the using amount of natural gas used in the SCR denitration link is large.
Therefore, the energy-saving two-stage denitration incinerator is provided with the heat exchanger behind the bag-type dust remover, and the dedusted gas is preheated by utilizing a hot gas pipeline through which a part of hot gas in the incinerator enters the heat exchanger, so that the consumption of natural gas is reduced, and the production cost is saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-saving second grade denitration burns burning furnace to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an energy-saving second grade denitration incinerator, is including burning furnace, quench tower, sack cleaner, heat exchanger and SCR denitration tower, burn the first flue gas pipeline of giving vent to anger on burning furnace right side and say to put through with the intake pipe of quench tower mutually, the pipeline of giving vent to anger of quench tower says to put through with the intake pipe of sack cleaner mutually, the pipeline of giving vent to anger of sack cleaner says to put through with the heat exchanger epaxial intake pipe mutually, the heat exchanger heating epaxial pipeline of giving vent to anger puts through the air inlet of draught fan mutually, the gas outlet of draught fan is put through with the SCR denitration tower mutually through the pipeline, burn the second flue gas pipeline of giving vent to anger at burning furnace top and say that the air inlet of hot gas pipeline in the heat exchanger.
Preferably, the hot gas pipeline in the heat exchanger is a spiral coil.
Preferably, valves are arranged on the first flue gas outlet pipeline and the pipeline communicated with the SCR denitration tower through the induced draft fan.
The utility model discloses a technological effect and advantage: this energy-saving secondary denitration burns burning furnace, burn burning furnace overall structure to the denitration and optimize, it loops through the quench tower to burn partly high temperature flue gas in the burning furnace, sack cleaner and heat exchanger carry out the denitration technology in entering into the SCR denitration tower, will burn burning furnace the steam pipeline that the steam of another subdivision got into the heat exchanger, utilize the steam pipeline on the heat exchanger to preheat the flue gas behind the sack cleaner, contain the heat in the flue gas of SCR denitration, utilize its waste heat to preheat the flue gas behind the sack ware, thereby the quantity of natural gas has been reduced, effective energy saving, and the production cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an incinerator; 2. a quench tower; 3. a bag-type dust collector; 4. a heat exchanger; 5. an SCR denitration tower; 6. a first flue gas outlet pipeline; 7. an induced draft fan; 8. a second flue gas outlet pipeline; 9. and (4) an air return pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an energy-saving two-stage denitration incinerator as shown in figure 1, which comprises an incinerator 1, a quench tower 2, a bag-type dust remover 3, a heat exchanger 4 and an SCR denitration tower 5, the first flue gas outlet pipeline 6 at the right side of the incinerator 1 is communicated with the gas inlet pipeline of the quenching tower 2, the air outlet pipeline of the quenching tower 2 is communicated with the air inlet pipeline of the bag-type dust remover 3, the air outlet pipeline of the bag-type dust remover 3 is communicated with the air inlet pipeline on the heating cavity of the heat exchanger 4, an air outlet pipeline on the heating cavity of the heat exchanger 4 is communicated with an air inlet of an induced draft fan 7, an air outlet of the induced draft fan 7 is communicated with the SCR denitration tower 5 through a pipeline, the second flue gas outlet pipeline 8 at the top of the incinerator 1 is communicated with the gas inlet of the hot gas pipeline in the heat exchanger 4, the air outlet of the hot air pipeline in the heat exchanger 4 is communicated with the air inlet of the incinerator 1 through an air return pipe 9.
Specifically, the hot gas pipeline in the heat exchanger 4 is a spiral coil.
Specifically, valves are arranged on the first flue gas outlet pipeline 6 and on pipelines communicated with the SCR denitration tower 5 through the induced draft fan 7.
This energy-saving second grade denitration incinerator, burn incinerator overall structure to the denitration and optimize, will burn partly high temperature flue gas in 1 of burning furnace and loop through quench tower 2, sack cleaner 3 and heat exchanger 4 enter into SCR denitration tower and carry out denitration technology, will burn the steam pipeline that 1 other partus of burning furnace got into heat exchanger 4, utilize the steam pipeline on the heat exchanger 4 to preheat sack cleaner 3 back flue gas, contain the heat in the flue gas of SCR denitration, utilize its waste heat to preheat sack cleaner back flue gas, thereby the quantity of natural gas has been reduced, effective energy saving, and the production cost is saved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (3)
1. The utility model provides an energy-saving second grade denitration incinerator, includes incinerator (1), quench tower (2), sack cleaner (3), heat exchanger (4) and SCR denitration tower (5), its characterized in that: burn first flue gas pipeline (6) of giving vent to anger on burning furnace (1) right side and say to put through mutually with the intake pipe of quench tower (2), the pipeline of giving vent to anger of quench tower (2) says to put through mutually with the intake pipe of sack cleaner (3), the pipeline of giving vent to anger of sack cleaner (3) says to put through mutually with heat exchanger (4) epaxial intake pipe, heat exchanger (4) heat epaxial pipeline of giving vent to anger puts through mutually with the air inlet of draught fan (7), the gas outlet of draught fan (7) is put through mutually with SCR denitration tower (5) through the pipeline, burn second flue gas pipeline (8) of giving vent to anger at burning furnace (1) top and heat exchanger (4) interior hot gas inlet of hot gas pipeline and put through mutually, the gas outlet of heat exchanger (4) interior hot gas pipeline passes through muffler (9) and burns the air.
2. The energy-saving secondary denitration incinerator according to claim 1, characterized in that: and a hot gas pipeline in the heat exchanger (4) is a spiral coil.
3. The energy-saving secondary denitration incinerator according to claim 1, characterized in that: and valves are arranged on the first flue gas outlet pipeline (6) and on pipelines communicated with the SCR denitration tower (5) by the induced draft fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104284.3U CN210568460U (en) | 2019-07-15 | 2019-07-15 | Energy-saving second grade denitration incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104284.3U CN210568460U (en) | 2019-07-15 | 2019-07-15 | Energy-saving second grade denitration incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210568460U true CN210568460U (en) | 2020-05-19 |
Family
ID=70634301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921104284.3U Expired - Fee Related CN210568460U (en) | 2019-07-15 | 2019-07-15 | Energy-saving second grade denitration incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210568460U (en) |
-
2019
- 2019-07-15 CN CN201921104284.3U patent/CN210568460U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |