CN202860383U - SCR flue gas denitrating device for garbage incinerator - Google Patents
SCR flue gas denitrating device for garbage incinerator Download PDFInfo
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- CN202860383U CN202860383U CN 201220410480 CN201220410480U CN202860383U CN 202860383 U CN202860383 U CN 202860383U CN 201220410480 CN201220410480 CN 201220410480 CN 201220410480 U CN201220410480 U CN 201220410480U CN 202860383 U CN202860383 U CN 202860383U
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Abstract
The utility model relates to an SCR (Selective Catalytic Reduction) flue gas denitrating device for a garbage incinerator. The SCR flue gas denitrating device comprises a silencer, a fan, an air regulating valve, an air heater, an ammonia water dosing device, an ammonia/air static mixer, an ammonia/air regulating valve, an ammonia/flue gas mixer, an inlet expansion joint, an SCR reactor, a soot blower, a catalyst layer and an outlet expansion joint. One end of the ammonia/air static mixer is connected with the heated air and the upper side is connected with the ammonia water dosing device, while the other end thereof is connected with the ammonia/air regulating valve; one end of the ammonia/flue gas mixer is connected with the inlet flue gas and one side thereof is connected with the ammonia/air regulating valve, while the other end thereof is connected with the SCR reactor; and the catalyst layer and the soot blower are arranged in the SCR reactor. The device is capable of evenly distributing ammonia and flue gas; and therefore, the denitration reaction is more through and the denitration efficiency is reduced.
Description
The utility model title
A kind of SCR equipment for denitrifying flue gas for incinerator
Technical field
The utility model belongs to the Air Pollution Control field of environmental pollution improvement, relates to a kind of SCR equipment for denitrifying flue gas for incinerator.
Background technology
At present, China's discharged nitrous oxides is increasing, has promoted the formation of acid rain, has brought huge harm and serious economic loss.Therefore, the emission limit set for nitrogen oxide is also imperative.Along with the enforcement of new discharge standard, every profession and trade is carried out the denitration transformation one after another.Selective catalytic reduction (SCR) is considered to the most ripe denitration technology of present technology.Traditional SCR denitrification apparatus adopts eddy current static mixer and the scheme that a plurality of reductant nozzles combine usually, and it is larger to take up room, and catalyst utilization is low, increases cost of investment.For the problem of above existence, a kind of SCR equipment for denitrifying flue gas for incinerator is proposed, will have greatly improved to denitration effect, reduce cost of investment.
Summary of the invention
Purport of the present utility model is to propose a kind of SCR denitrification apparatus for incinerator, and it can make flue gas and reducing agent be uniformly mixed, and makes denitration reaction more abundant, improves denitration efficiency.
A kind of SCR equipment for denitrifying flue gas for incinerator of the utility model comprises muffler, blower fan, air control valve, air heater, ammoniacal liquor chemicals dosing plant, ammonia/air static mixer, ammonia/air control valve, ammonia/flue gas blender, entrance expansion joint, SCR reactor, soot blower, catalyst layer, outlet expansion joint.Described ammonia/air static mixer one end links to each other with heater, and upside links to each other with the ammoniacal liquor chemicals dosing plant, and the other end links to each other with ammonia/air control valve; Described ammonia/flue gas blender one end links to each other with inlet flue gas, and a side links to each other with ammonia/air control valve, and the other end links to each other with the SCR reactor; Described SCR reactor, inside is provided with catalyst layer and soot blower.
The complete ammonifying device of described ammoniacal liquor chemicals dosing plant for can automatically controlling.
Described ammonia/air static mixer one end links to each other with air after the heating, and upside links to each other with ammoniacal liquor after the atomizing, and the other end passes through ammonia/air control valve and links to each other with ammonia/flue gas blender.
Described ammonia/flue gas blender one side links to each other with ammonia/air static mixer by ammonia/air control valve.
Described SCR reactor, inside are provided with catalysts layer and compressed air soot-blowing device; Described catalysts layer is that a plurality of catalyst modules form.
Described entrance and exit expansion joint is the non-metal expansion joint with stainless steel cloth.
The ammoniacal liquor chemicals dosing plant of this device is complete ammonifying device, can realize automatic control; Ammonia/air static mixer one end with the heating after air link to each other, upside with the atomizing after ammoniacal liquor link to each other, the realization ammoniacal liquor gasification, ammoniacal liquor is decomposed into NH
3And H
2O; Ammonia/flue gas blender one end links to each other with inlet flue gas, a side with the gasification after ammoniacal liquor link to each other, make flue gas and NH
3Mixed fully, the other end links to each other with the SCR reactor, has substituted ammonia-gas spraying device, has played the effect of spray ammonia.In sum, this device can make flue gas and NH
3Fully mixed, make reaction more abundant, improved denitration efficiency.
Description of drawings
Fig. 1 is the SCR equipment for denitrifying flue gas structural representation for incinerator.
Fig. 2 is ammoniacal liquor chemicals dosing plant schematic diagram.
Among the figure, 1-muffler, 2-blower fan, the 3-air control valve, 4-air heater, 5-ammoniacal liquor chemicals dosing plant, 6-ammonia/air static mixer, 7-ammonia/air control valve, 8-ammonia/flue gas blender, 9-entrance expansion joint, the 10-SCR reactor, the 11-soot blower, 12-catalysts layer, 13-exports expansion joint.
The specific embodiment
Further specify the embodiment of the utility model device below in conjunction with accompanying drawing.
Fig. 1 is the embodiment that the utility model is used for the SCR equipment for denitrifying flue gas of incinerator.As shown in Figure 1, this denitrification apparatus comprises muffler 1, blower fan 2, air control valve 3, air heater 4, ammoniacal liquor chemicals dosing plant 5, ammonia/air static mixer 6, ammonia/air control valve 7, ammonia/flue gas blender 8, entrance expansion joint 9, SCR reactor 10, soot blower 11, catalyst layer 12, outlet expansion joint 13.Ammoniacal liquor chemicals dosing plant 5 provides ammoniacal liquor, behind the compressed air atomizing, is delivered to ammonia/air static mixer 6; Ammonia/air static mixer 6 one ends link to each other with air heater 4, realize the gasification of ammoniacal liquor, and ammoniacal liquor is decomposed into NH
3And H
2O; Ammoniacal liquor after the gasification is delivered to ammonia/flue gas blender 8 by ammonia/air control valve 7, in ammonia/flue gas blender 8, and flue gas and NH
3Fully mixed; Ammonia/flue gas blender 8 ports of export link to each other with SCR reactor 10, replace ammonia-gas spraying device, have played the effect of spray ammonia.
Fig. 2 is ammoniacal liquor chemicals dosing plant schematic diagram, and the ammoniacal liquor chemicals dosing plant is complete ammonifying device, can realize automatic control.
Claims (6)
1. a SCR equipment for denitrifying flue gas that is used for incinerator comprises muffler, blower fan, air control valve, air heater, ammoniacal liquor chemicals dosing plant, ammonia/air static mixer, ammonia/air control valve, ammonia/flue gas blender, entrance expansion joint, SCR reactor, soot blower, catalyst layer, outlet expansion joint.Described ammonia/air static mixer one end links to each other with heater, and upside links to each other with the ammoniacal liquor chemicals dosing plant, and the other end links to each other with ammonia/air control valve; Described ammonia/flue gas blender one end links to each other with inlet flue gas, and a side links to each other with ammonia/air control valve, and the other end links to each other with the SCR reactor; Described SCR reactor, inside is provided with catalyst layer and soot blower.
2. the SCR equipment for denitrifying flue gas for incinerator according to claim 1 is characterized in that, the complete ammonifying device of described ammoniacal liquor chemicals dosing plant for can automatically controlling.
3. the SCR equipment for denitrifying flue gas for incinerator according to claim 1, it is characterized in that, described ammonia/air static mixer one end links to each other with air after the heating, and upside links to each other with ammoniacal liquor after the atomizing, and the other end passes through ammonia/air control valve and links to each other with ammonia/flue gas blender.
4. the SCR equipment for denitrifying flue gas for incinerator according to claim 1 is characterized in that, described ammonia/flue gas blender one side links to each other with ammonia/air static mixer by ammonia/air control valve.
5. the SCR equipment for denitrifying flue gas for incinerator according to claim 1 is characterized in that, described SCR reactor, and inside is provided with catalysts layer and compressed air soot-blowing device; Described catalysts layer is that a plurality of catalyst modules form.
6. the SCR equipment for denitrifying flue gas for incinerator according to claim 1 is characterized in that, described entrance and exit expansion joint is the non-metal expansion joint with stainless steel cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410480 CN202860383U (en) | 2012-08-17 | 2012-08-17 | SCR flue gas denitrating device for garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410480 CN202860383U (en) | 2012-08-17 | 2012-08-17 | SCR flue gas denitrating device for garbage incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202860383U true CN202860383U (en) | 2013-04-10 |
Family
ID=48027143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220410480 Expired - Lifetime CN202860383U (en) | 2012-08-17 | 2012-08-17 | SCR flue gas denitrating device for garbage incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202860383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492259A (en) * | 2014-12-26 | 2015-04-08 | 南通天蓝环保能源成套设备有限公司 | SCR flue gas denitrification system for household garbage furnace |
| CN108131679A (en) * | 2017-12-08 | 2018-06-08 | 中国联合工程有限公司 | The SCR denitration structure and its operation method of a kind of boiler tail device |
| CN112628699A (en) * | 2020-12-01 | 2021-04-09 | 中国船舶重工集团公司第七0三研究所 | Double-channel double-medium waste heat boiler |
-
2012
- 2012-08-17 CN CN 201220410480 patent/CN202860383U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104492259A (en) * | 2014-12-26 | 2015-04-08 | 南通天蓝环保能源成套设备有限公司 | SCR flue gas denitrification system for household garbage furnace |
| CN108131679A (en) * | 2017-12-08 | 2018-06-08 | 中国联合工程有限公司 | The SCR denitration structure and its operation method of a kind of boiler tail device |
| CN108131679B (en) * | 2017-12-08 | 2024-03-05 | 中国联合工程有限公司 | SCR denitration structure of boiler tail device and operation method thereof |
| CN112628699A (en) * | 2020-12-01 | 2021-04-09 | 中国船舶重工集团公司第七0三研究所 | Double-channel double-medium waste heat boiler |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| CX01 | Expiry of patent term |