CN203829911U - SNCR (selective non-catalytic reduction) denitration system of circulating fluidized bed boiler - Google Patents
SNCR (selective non-catalytic reduction) denitration system of circulating fluidized bed boiler Download PDFInfo
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- CN203829911U CN203829911U CN201420249645.4U CN201420249645U CN203829911U CN 203829911 U CN203829911 U CN 203829911U CN 201420249645 U CN201420249645 U CN 201420249645U CN 203829911 U CN203829911 U CN 203829911U
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- pipeline
- returning charge
- burner hearth
- reducing agent
- amino
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- Expired - Lifetime
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- 238000010531 catalytic reduction reaction Methods 0.000 title abstract description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 50
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 32
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 29
- 239000012071 phase Substances 0.000 claims description 29
- 239000007791 liquid phase Substances 0.000 claims description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 14
- 235000019738 Limestone Nutrition 0.000 claims description 10
- 239000006028 limestone Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 45
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000273930 Brevoortia tyrannus Species 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
The utility model discloses an SNCR (selective non-catalytic reduction) denitration system of a circulating fluidized bed boiler. The system comprises a reducing agent preparing device arranged outside a hearth, a metering feeding device connected with the reducing agent preparing device, an amino matter ejector connected with the metering feeding device through an amino matter pipeline and a cyclone separator connected with the upper part of the hearth, wherein the lower part of the cyclone separator is connected with a return feeding stand pipe; the return feeding stand pipe is connected with a return feeder; a connecting return feeding pipeline is arranged between the return feeder and the hearth; the amino matter ejector is arranged in the connecting return feeding pipeline. The SNCR denitration system of the circulating fluidized bed boiler, disclosed by the utility model, has the advantages that reducing agent and not-burnt-out high-temperature fuel particles enter the boiler together and the retention time of the reducing agent is prolonged, so that the reducing agent and smoke are e uniformly mixed, the use ratio of amino matters is high and the nitrogen oxide removing efficiency is high; the problem of screen breakage due to the reducing agent being ejected by the hearth to a water wall tube is solved.
Description
Technical field
The utility model relates to a kind of flue gas denitrification system, is specifically related to a kind of flue gas denitrification system of CFBB, belongs to denitration of boiler smoke technical field.
Background technology
Along with expanding economy, the discharge capacity of nitrogen oxide (NOx) pollutant increases sharply, severe contamination ecological environment, become one of key factor of restriction economic development, wherein coal-burning boiler is concentrated, compared with other spread sources, is easily controlled greatly and relatively because of its discharge capacity, becomes the preferred object of controlling nitrogen oxide (NOx).
At present, denitrating flue gas nitrogen oxide (NOx), according to administering technique, can be divided into wet method NO_x removal and dry removal NOx, wherein conventional dry removal NOx is also divided into selective catalytic reduction (SCR) and SNCR method (SNCR).CFBB (CFB) technology is the high-efficiency low-pollution clean burning branch art developing rapidly in recent ten years.This technology has obtained business application widely in fields such as station boiler, Industrial Boilers in the world, for CFB boiler, because temperature field is stable, original NOx concentration is low, and SNCR technology (SNCR) is processed NOx in its flue gas and is widely used.
Chinese patent literature CN103638805A discloses a kind of CFB boiler SNCR denitration method for flue gas of dual reducting agents, comprise, when cyclone inlet flue gas temperature is more than 850 ℃, or, CFB boiler load is when 70%BMCR is above, selection sprays into conventional ammonia reducing agent from cyclone inlet flue, when cyclone inlet flue gas temperature is lower than 850 ℃, or, CFB boiler load is during lower than 70%BMCR, selection is from upper furnace, a place in cyclone inlet flue and separator outlet flue or many places spray into produce the reducing agent of active ammonia component.While adopting above-mentioned spray regime injection reduction agent, because fire box temperature is high, make its fire resistance rating to injector have relatively high expectations, thereby injection apparatus cost is improved, in addition, because the inner space of burner hearth is limited, when spraying liquid reducing agent, easily cause corrosion after may causing the boiler interior conduit contact liquid droplets such as water-cooling wall after reducing agent sprays into, even produce explosion.
Utility model content
For solving in prior art when upper furnace, cyclone inlet flue or separator outlet flue spray into liquid reducing agent, easily cause the problem of the boiler interior conduit corrosion such as water-cooling wall or explosion, and then a kind of CFBB SNCR flue gas denitrification system is provided.
For this reason, the scheme that the utility model is taked is,
A kind of CFBB SNCR denitrating system, comprise, be arranged at the measurement charging device outside burner hearth that is positioned at that reducing agent preparation facilities outside burner hearth is connected with described reducing agent preparation facilities, and the amino material injector being connected with described measurement charging device by amino material pipeline, also comprise the cyclone separator being connected with described upper furnace, described cyclone separator bottom connects returning charge standpipe, described returning charge standpipe is also connected with material returning device, between described material returning device and described burner hearth, be provided with and be connected returning charge pipeline, described connection returning charge pipeline is transported to the high-temperature particle that there is no in a large number after-flame carrying in flue gas in described burner hearth and rekindles, wherein, described amino material injector is arranged in described connection returning charge pipeline.
In above-mentioned CFBB SNCR denitrating system, described amino material injector is perpendicular to the center line of described burner hearth, and has angle with the described axial shape that is connected returning charge pipeline, and described angle is not more than 60 degree.
In above-mentioned CFBB SNCR denitrating system, in described connection returning charge pipeline, be provided with a plurality of described amino material injectors, a plurality of described amino material injectors are arranged on the sidewall of described connection returning charge pipeline symmetrically, and the some described amino material injector that is positioned at same sidewall be arranged in parallel.
In above-mentioned CFBB SNCR denitrating system, when the described amino material of carrying is liquid, described amino material injector comprises liquid phase supervisor, be sleeved on described liquid phase is responsible for peripheral gas phase supervisor, and is sleeved on described gas phase and is responsible for peripheral cooling tube; Described liquid phase supervisor and upper supporting liquid phase arm and the gas phase arm that is provided with the coaxial setting with opening of described gas phase supervisor, and described gas phase arm is sleeved on the periphery of described liquid phase arm, described liquid phase arm is connected with described liquid phase supervisor, described gas phase arm is connected with described gas phase supervisor, and it is outside that described gas phase arm extends to described cooling tube.Amino substance solution is responsible for by liquid phase arm and is sprayed by liquid phase, and compressed air is responsible for by gas phase arm and is sprayed by gas phase, and amino substance solution sprays into after being atomized under compressed-air actuated effect and connects in returning charge pipeline.
Alternately, in above-mentioned CFBB SNCR denitrating system, when the amino material of carrying is pressed powder, described amino material injector is the straight tube with opening, and described measurement charging device is also connected with thinking that the amino material spraying in straight tube provides the Pneumatic conveyer of power-assisted.Through described measurement charging device, pressed powder is accurately set, under the strength of Pneumatic conveyer is carried by amino material pressed powder by sending into returning charge pipeline, with coal-burning particle and flue gas, enter boiler.
In above-mentioned CFBB SNCR denitrating system, described material returning device comprises feed space and returning charge chamber, and described feed space is connected with described returning charge standpipe, and described returning charge chamber is connected with the described returning charge pipeline that is connected.
In above-mentioned CFBB SNCR denitrating system, also comprise, fuel tube, one end of described fuel tube is connected with described burner hearth, and its other end is connected with Bunker; Lime stone conveyance conduit, one end of described lime stone conveyance conduit is connected with burner hearth, and its other end is connected with lime stone storehouse.
In above-mentioned CFBB SNCR denitrating system, flow direction along boiler smoke, described cyclone separator top is connected with boiler tail device, and along the flow direction of boiler smoke, described boiler tail device comprises superheater, economizer, reboiler and air preheater successively.
In above-mentioned CFBB SNCR denitrating system, also comprise air-supply arrangement, described air-supply arrangement comprises air-supply arrangement and secondary blast device, a described air-supply arrangement comprises primary air fan and a wind pipeline, one end of a described wind pipeline is connected with primary air fan, and its other end is connected with the water cooled wind chamber that is arranged at burner hearth bottom by described air preheater; Described secondary blast device comprises overfire air fan and Secondary Air pipeline, and one end of described Secondary Air pipeline is connected with overfire air fan, and its other end is connected with described burner hearth by described air preheater.
Compared with prior art, the utlity model has following advantage,
1, the application's CFBB SNCR denitrating system, because being arranged on, amino material injector connects on returning charge pipeline, make reducing agent and do not have the high-temperature fuel particle of after-flame together to enter boiler, reducing agent can mix at any time and participate in reaction in burner hearth with the Gas phase Smoke of coal combustion formation like this, rather than flue gas rises to certain position and react with reducing agent in burner hearth, be equivalent to the reducing agent time of staying extend; Adopt in addition the application's mode that more even that injector makes that reducing agent mixes with flue gas is set, amino material utilization is higher, and removal of nitrogen oxide efficiency is high; And reducing agent sprays into be a little located at and connects returning charge pipeline place, has stopped the agent of burner hearth injection reduction and has been sprayed onto the problem that water screen tube causes sudden and violent screen.
2, the application's CFBB SNCR denitrating system, because amino material injector is arranged on returning charge pipeline, thereby has reduced the heatproof requirement to injector material, does not need high temperature resistant material, thereby has reduced capital expenditure.
3, compare with traditional CFBB SNCR, amino material injector is arranged on returning charge pipeline, will injector be arranged on boiler or cyclone separator etc. and locates, and has reduced the change to boiler, and construction is simple, and the duration is short, reduces improvement cost.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a kind of CFBB SNCR denitrating system.
Wherein, Reference numeral is expressed as,
1-reducing agent preparation facilities, 2 – measurement charging devices, the amino material injector of 3-, 4-connects returning charge pipeline, 5-water cooled wind chamber, 6-burner hearth, 7 – lime stone storehouses, 8 – Bunkers, 9-cyclone separator, 10-returning charge standpipe, 11-material returning device, 13-superheater, 14-economizer, 15-reboiler, 16-air preheater, 17-overfire air fan, 18-primary air fan.
The specific embodiment
CFBB SNCR denitrating system as shown in Figure 1, comprise, be arranged at the measurement charging device 2 outside described burner hearth 6 that is positioned at that reducing agent preparation facilities 1 outside burner hearth 6 is connected with described reducing agent preparation facilities 1, and the amino material injector 3 being connected with described measurement charging device 2 by amino material pipeline, also comprise the cyclone separator 9 being connected with described burner hearth 6 tops, described cyclone separator 9 bottoms connect returning charge standpipe 10, described returning charge standpipe 10 is connected with material returning device 11, between described material returning device 11 and described burner hearth 6, be provided with and be connected returning charge pipeline 4, described connection returning charge pipeline 4 is transported to the high-temperature particle that there is no in a large number after-flame carrying in flue gas in described burner hearth and rekindles, wherein, described amino material injector 3 is arranged in described connection returning charge pipeline 4.
On the basis of above-mentioned embodiment, described amino material injector 3 is perpendicular to the center line of described burner hearth 6, and has angle with the described axial shape that is connected returning charge pipeline 4, and described angle is not more than 60 degree.
On the basis of above-mentioned embodiment, in described connection returning charge pipeline 4, be provided with a plurality of described amino material injectors 3, a plurality of described amino material injectors 3 are arranged on the sidewall of described connection returning charge pipeline 4 symmetrically, and the some described amino material injector 3 that is positioned at same sidewall be arranged in parallel.
On the basis of above-mentioned embodiment, when the described amino material of carrying is liquid, described amino material injector comprises liquid phase supervisor, be sleeved on described liquid phase is responsible for peripheral gas phase supervisor, and is sleeved on described gas phase and is responsible for peripheral cooling tube; Described liquid phase supervisor and upper supporting liquid phase arm and the gas phase arm that is provided with the coaxial setting with opening of described gas phase supervisor, and described gas phase arm is sleeved on the periphery of described liquid phase arm, described liquid phase arm is connected with described liquid phase supervisor, described gas phase arm is connected with described gas phase supervisor, and it is outside that described gas phase arm extends to described cooling tube.Amino substance solution is responsible for by liquid phase arm and is sprayed by liquid phase, and compressed air is responsible for by gas phase arm and is sprayed by gas phase, and amino substance solution sprays into after being atomized under compressed-air actuated effect and connects in returning charge pipeline.
Alternately, on the basis of above-mentioned embodiment, when the amino material of carrying is pressed powder, described amino material injector is the straight tube with opening, and described measurement charging device is also connected with thinking that the amino material spraying in straight tube provides the Pneumatic conveyer of power-assisted.Through described measurement charging device, pressed powder is accurately set, under the strength of Pneumatic conveyer is carried by amino material pressed powder by sending into returning charge pipeline, with coal-burning particle and flue gas, enter boiler, wherein said Pneumatic conveyer is that blower fan or other can spray into amino material pressed powder the power set that connect returning charge pipeline.
On the basis of above-mentioned embodiment, described material returning device 11 comprises feed space and returning charge chamber, and described feed space is connected with described returning charge standpipe 10, and described returning charge chamber is connected with the described returning charge pipeline 4 that is connected.
On the basis of above-mentioned embodiment, also comprise,
Fuel tube, one end of described fuel tube is connected with described burner hearth 6, and its other end is connected with Bunker 8; Lime stone conveyance conduit, one end of described lime stone conveyance conduit is connected with burner hearth, and its other end is connected with lime stone storehouse 7.
On the basis of above-mentioned embodiment, described cyclone separator top is connected with boiler tail device, and along the flow direction of boiler smoke, described boiler tail device comprises superheater 13, economizer 14, reboiler 15 and air preheater 16 successively.
On the basis of above-mentioned embodiment, also comprise air-supply arrangement, described air-supply arrangement comprises air-supply arrangement and secondary blast device, a described air-supply arrangement comprises primary air fan 18 and a wind pipeline, one end of a described wind pipeline is connected with primary air fan, and its other end is connected with the water cooled wind chamber 5 that is arranged at burner hearth bottom by described air preheater; Described secondary blast device comprises overfire air fan 17 and Secondary Air pipeline, and one end of described secondary air duct is connected with overfire air fan, and its other end is connected with described burner hearth by described air preheater.
Above-mentioned CFBB SNCR denitrating system carries out the out of stock technique basic step of flue gas and comprises,
Reducing agent preparation facilities is sent into measurement charging device by reducing agent by pipeline, by measurement charging device, according to demand metering, carries reducing agent, by pipeline, connects reducing agent injector, and sprays into returning charge pipeline by reducing agent injector, and reducing agent decomposes is NH
3, after with flue gas, enter boiler furnace, in CFB burner hearth, at 900 ℃-1100 ℃ of temperature windows that are applicable to SNCR reaction, NOx is reduced to N
2and H
2o, thus remove nitrogen oxide.
The utility model mainly adopts urea liquid, dry urea powder, ammoniacal liquor or urea liquation to react reducing agent as SNCR, and new reducing agent is set sprays position and spray into, remove the NOx in flue gas, significantly reduce cost of investment and operating cost, abbreviation process system, simple to operate, improve denitration efficiency.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (9)
1. a CFBB SNCR denitrating system, comprise, what be arranged at that the outer reducing agent preparation facilities (1) of burner hearth (6) is connected with described reducing agent preparation facilities (1) is positioned at described burner hearth (6) measurement charging device (2) outward, and the amino material injector (3) being connected with described measurement charging device (2) by amino material pipeline, also comprise the cyclone separator (9) being connected with described burner hearth (6) top, described cyclone separator (9) bottom connects returning charge standpipe (10), described returning charge standpipe (10) is connected with material returning device (11), between described material returning device (11) and described burner hearth (6), be provided with and be connected returning charge pipeline (4), described connection returning charge pipeline (4) is transported to the high-temperature particle that there is no in a large number after-flame carrying in flue gas in described burner hearth and rekindles, it is characterized in that, described amino material injector (3) is arranged in described connection returning charge pipeline (4).
2. CFBB SNCR denitrating system according to claim 1, is characterized in that,
Described amino material injector (3) is perpendicular to the center line of described burner hearth (6), and has angle with the described axial shape that is connected returning charge pipeline (4), and described angle is not more than 60 degree.
3. CFBB SNCR denitrating system according to claim 1 and 2, is characterized in that,
In described connection returning charge pipeline (4), be provided with a plurality of described amino material injectors (3), a plurality of described amino material injectors (3) are arranged on the sidewall of described connection returning charge pipeline (4) symmetrically, and the some described amino material injector (3) that is positioned at same sidewall be arranged in parallel.
4. CFBB SNCR denitrating system according to claim 3, is characterized in that,
Described amino material injector (3) comprises liquid phase supervisor, be sleeved on described liquid phase is responsible for peripheral gas phase supervisor, and is sleeved on described gas phase and is responsible for peripheral cooling tube; Described liquid phase supervisor and upper supporting liquid phase arm and the gas phase arm that is provided with the coaxial setting with opening of described gas phase supervisor, and described gas phase arm is sleeved on the periphery of described liquid phase arm, described liquid phase arm is connected with described liquid phase supervisor, described gas phase arm is connected with described gas phase supervisor, and it is outside that described gas phase arm extends to described cooling tube.
5. CFBB SNCR denitrating system according to claim 3, is characterized in that,
Described amino material injector (3) is for having the straight tube of opening, and described measurement charging device (2) is also connected with thinking that the amino material spraying in straight tube provides the Pneumatic conveyer of power-assisted.
6. according to the CFBB SNCR denitrating system described in claim 4 or 5, it is characterized in that,
Described material returning device (11) comprises feed space and returning charge chamber, and described feed space is connected with described returning charge standpipe (10), and described returning charge chamber is connected with the described returning charge pipeline (4) that is connected.
7. CFBB SNCR denitrating system according to claim 6, is characterized in that, also comprise,
Fuel tube, one end of described fuel tube is connected with described burner hearth (6), and its other end is connected with Bunker (8)
Lime stone conveyance conduit, one end of described lime stone conveyance conduit is connected with burner hearth, and its other end is connected with lime stone storehouse (7).
8. CFBB SNCR denitrating system according to claim 7, it is characterized in that, described cyclone separator top is connected with boiler tail device, along the flow direction of boiler smoke, described boiler tail device comprises superheater (13), economizer (14), reboiler (15) and air preheater (16) successively.
9. CFBB SNCR denitrating system according to claim 8, is characterized in that,
Also comprise air-supply arrangement, described air-supply arrangement comprises air-supply arrangement and secondary blast device, a described air-supply arrangement comprises primary air fan and a wind pipeline, one end of a described wind pipeline is connected with primary air fan, and its other end is connected with the water cooled wind chamber (5) that is arranged at burner hearth bottom by described air preheater; Described secondary blast device comprises overfire air fan and Secondary Air pipeline, and one end of described secondary air duct is connected with overfire air fan, and its other end is connected with described burner hearth by described air preheater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249645.4U CN203829911U (en) | 2014-05-15 | 2014-05-15 | SNCR (selective non-catalytic reduction) denitration system of circulating fluidized bed boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249645.4U CN203829911U (en) | 2014-05-15 | 2014-05-15 | SNCR (selective non-catalytic reduction) denitration system of circulating fluidized bed boiler |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819462A (en) * | 2015-05-12 | 2015-08-05 | 理昂新能源股份有限公司 | Biomass boiler and application method thereof |
| CN105180157A (en) * | 2015-09-29 | 2015-12-23 | 河北鑫华新锅炉制造有限公司 | Shell type fire tube circulating fluidized bed boiler |
| CN105498521A (en) * | 2016-01-13 | 2016-04-20 | 杭州锅炉集团股份有限公司 | SNCR denitrification device capable of directly feeding urea granules for CFB boiler |
| CN105879796A (en) * | 2016-04-15 | 2016-08-24 | 四川省明信投资有限公司 | Circulating fluidized bed |
| CN108147799A (en) * | 2017-12-27 | 2018-06-12 | 杨松 | A kind of recirculating fluidized bed roasting revolution all-in-one oven |
| CN109058983A (en) * | 2018-06-01 | 2018-12-21 | 西安交通大学 | Recirculating fluidized bed combustion with meagre oxygen catalysis oxidation fractional combustion boiler system and method |
| CN110975581A (en) * | 2019-12-12 | 2020-04-10 | 湖南人文科技学院 | Device for improving SNCR (selective non-catalytic reduction) denitration efficiency of circulating fluidized bed boiler |
-
2014
- 2014-05-15 CN CN201420249645.4U patent/CN203829911U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819462A (en) * | 2015-05-12 | 2015-08-05 | 理昂新能源股份有限公司 | Biomass boiler and application method thereof |
| CN105180157A (en) * | 2015-09-29 | 2015-12-23 | 河北鑫华新锅炉制造有限公司 | Shell type fire tube circulating fluidized bed boiler |
| CN105498521A (en) * | 2016-01-13 | 2016-04-20 | 杭州锅炉集团股份有限公司 | SNCR denitrification device capable of directly feeding urea granules for CFB boiler |
| CN105879796A (en) * | 2016-04-15 | 2016-08-24 | 四川省明信投资有限公司 | Circulating fluidized bed |
| CN108147799A (en) * | 2017-12-27 | 2018-06-12 | 杨松 | A kind of recirculating fluidized bed roasting revolution all-in-one oven |
| CN108147799B (en) * | 2017-12-27 | 2020-01-14 | 杨松 | Roasting and rotating integrated furnace of circulating fluidized bed |
| CN109058983A (en) * | 2018-06-01 | 2018-12-21 | 西安交通大学 | Recirculating fluidized bed combustion with meagre oxygen catalysis oxidation fractional combustion boiler system and method |
| CN110975581A (en) * | 2019-12-12 | 2020-04-10 | 湖南人文科技学院 | Device for improving SNCR (selective non-catalytic reduction) denitration efficiency of circulating fluidized bed boiler |
| CN110975581B (en) * | 2019-12-12 | 2021-09-21 | 湖南人文科技学院 | Device for improving SNCR (selective non-catalytic reduction) denitration efficiency of circulating fluidized bed boiler |
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