CN105841488B - Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus - Google Patents
Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus Download PDFInfo
- Publication number
- CN105841488B CN105841488B CN201610307882.5A CN201610307882A CN105841488B CN 105841488 B CN105841488 B CN 105841488B CN 201610307882 A CN201610307882 A CN 201610307882A CN 105841488 B CN105841488 B CN 105841488B
- Authority
- CN
- China
- Prior art keywords
- coal
- fluidized
- bed combustion
- combustion boiler
- burner hearth
- Prior art date
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/18—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/09—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/10—Arrangements of air or gas supply devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/20—Arrangements of monitoring devices, of indicators, of alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
A kind of fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and device change the equivalent diameter of as-fired coal when the Load Regulation is underload, reduce critical flow velocity, load is made to reach minimum value, one charging system of outfit when high load capacity is adjusted；Oxygen amount generates CO to the low nitrogen burning in the pre-burning stage anoxycausis of coal in order to control, restores NOx with CO, generates N2With CO2, Secondary Air is added, CO fully burns in the after-flame stage, reduces incomplete combustion loss.The burner connects blower inlet to add shunt conduit on the flue of bag filter, and air blower connects burner hearth, boiler side breaker mounting, screw(-type) feeder and charging system, and burner hearth has secondary air inlet.The present invention also has oxygen content table or amount of nitrogen oxides table and automatic control device.The present invention can especially realize adjusting operation and the environment protecting of low nitrogen burning, minimum discharge of ultra-low load.
Description
Technical field
The invention belongs to combustion method and technical field of combustion equipment, and in particular to a kind of fluidized-bed combustion boiler Load Regulation and
Low nitrogen burning method and apparatus.
Background technology
Circulating fluidized bed boiler can get the higher thermal efficiency and ideal discharge index under declared working condition, but low
When load, since fire box temperature field is uneven, furnace exit temperature is low, not only affects the thermal efficiency, and steam parameter also affects
The existence of nitrogen oxides and denitration in the stove effect.Therefore, current circulating fluidized bed boiler does not simply fail to accomplish that ultra-low load is transported
Row, can not accomplish minimum discharge.
Invention content
The technical problem to be solved by the present invention is to：The above-mentioned problems of the prior art is solved, and a kind of fluidisation is provided
Bed boiler load adjusts and low nitrogen burning method and apparatus, can both realize the high load capacity and normal duty of circulating fluidized bed boiler
Operation, and can realize the adjusting and operation of underload and ultra-low load, can also especially realize low nitrogen burning, minimum discharge ring
Protect effect.
The technical solution adopted by the present invention is：A kind of fluidized-bed combustion boiler Load Regulation and low nitrogen burning method, described is negative
Lotus is adjusted to change the equivalent diameter of as-fired coal when underload, reduces critical flow velocity, so that load is reached minimum value, in high load capacity tune
A charging system is equipped with when section；Oxygen amount generates CO to the low nitrogen burning in the pre-burning stage anoxycausis of coal in order to control, uses
CO restores NOx, generates N2With CO2, Secondary Air is added, CO fully burns in the after-flame stage, reduces incomplete combustion loss.
In above-mentioned technical proposal, the equivalent diameter for changing as-fired coal is to increase the reducing equipment of a coal, on belt
As-fired coal be sent into burner hearth after reducing equipment, then by screw(-type) feeder；The outfit when high load capacity is adjusted one adds
Material system is to increase feed hopper and screw(-type) feeder in stokehold, and qualified coal bottom material is entered feed hopper through bucket elevator in advance, then
Enter burner hearth through screw(-type) feeder.
In above-mentioned technical proposal, above-mentioned reducing equipment is crusher, and the coal grain that grain size is 8-10mm is broken into grain size
For 5mm coal grains below.
In above-mentioned technical proposal, the pre-burning stage anoxycausis in coal is：By the cigarette of boiler tail bag filter
Gas is connected with pipeline by the wind turbine that flows back and is delivered to blower inlet, and air blower is pre- through air together with natural air by the flue gas
The air inlet of burner hearth bottom is delivered to after hot device preheating；The addition Secondary Air is to be equipped with secondary air inlet in the middle part of burner hearth.
In above-mentioned technical proposal, the control oxygen amount is：Survey is installed between the superheater and economizer of boiler tail
Measure the oxygen content table or amount of nitrogen oxides epoxy content table or amount of nitrogen oxides of oxygen content or amount of nitrogen oxides in flue gas
On the one hand table carries out oxygen content or amount of nitrogen oxides instruction, on the other hand output measures oxygen content or amount of nitrogen oxides letter
It number is connected to automatic control device, output control signal connects back to flow fan after automatic control device carries out signal processing, controls
The uninterrupted of reflux wind turbine.
A kind of fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus, including the burner hearth of fluidized-bed combustion boiler, fluidized-bed combustion boiler
Drum, the sequentially connected separator in fluidized-bed combustion boiler tail portion, superheater, economizer, the prefabricated device of air, the bag-type dust at top
Device, air-introduced machine and chimney add shunt conduit connection reflux wind on the flue between bag filter and air-introduced machine
The output channel of the input port of machine, the wind turbine that flows back is connected to the entrance of air blower, and the output air hose of air blower is pre- through air
The air inlet to fluidized-bed combustion boiler is connected after hot device；The reducing of a coal is added in the burner hearth side of fluidized-bed combustion boiler
The charging system of equipment and a set of coal, the reducing equipment output of coal are connected to the burner hearth of fluidized-bed combustion boiler by screw(-type) feeder,
The charging system of coal is also connected to the burner hearth of fluidized-bed combustion boiler；Secondary air inlet is installed in the middle part of the burner hearth of fluidized-bed combustion boiler.
In above-mentioned technical proposal, it is equipped on the flue between superheater and economizer and measures oxygen content in flue gas
Or the oxygen content table or amount of nitrogen oxides table of amount of nitrogen oxides, oxygen content table or amount of nitrogen oxides table export measuring signal
It is connected to automatic control device, automatic control device output control signal connects and controls reflux wind turbine.
In above-mentioned technical proposal, the reducing equipment of the coal is crusher；The charging system of the coal increases for stokehold
Coal bottom material is entered feed hopper, feed hopper output connection screw(-type) feeder, screw(-type) feeder output connection by feed hopper through bucket elevator
The burner hearth of fluidized-bed combustion boiler.
Former combustion apparatus（Air distribution plate and blast cap）Unreasonable part also needs to be improved and optimization design.
Operation principle and remarkable result：
The Load Regulation of circulating fluidized bed boiler must wind, coal, three sample of bottom material adjust simultaneously, circulating fluidized bed boiler in order to
Flameholding, air quantity must be greater than critical air blast, since air quantity is restricted, so the underload of circulating fluidized bed boiler
Regulatory function is also restricted, and the equivalent diameter of critical flow velocity and as-fired coal changes working as as-fired coal at three cubed relationship
Amount diameter can reduce critical flow velocity, and load is made to reach minimum value.
Due to reducing critical flow velocity, reduce the thickness of bottom material, fluid height also decreases, the heat absorption of such pipe laying
Amount is also greatly reduced, although the temperature of burner hearth maintains certain value, load can keep certain minuent.It in this way will not shadow
Ring the effect of denitration.
Due to changing the equivalent diameter of as-fired coal, reflux wind is introduced, it not only can be with Ultra-low load operation, but also super
Stove stares at uniform temperature fields when underload, keeps ideal furnace exit temperature and excess air coefficient, ensure that steam parameter and
The raw emissions and denitration effect of nitrogen oxides ensure that steam parameter can accomplish minimum discharge in ultra-low load.
That is in underload, change the equivalent diameter of as-fired coal, can not only ensure underrun, but also can protect
Demonstrate,prove low nitrogen burning.
When needing high load capacity, bottom material increases therewith, and the bottom material accumulating rate by itself is too slow, can not flexibly cope with, full
Sufficient technological requirement a, so charging system need to be equipped with.It is re-introduced into smoke backflow when underload, reduces the excess air in burner hearth
Coefficient reduces the discharge of nitrogen oxides.
For its load regulation range of the fluidized-bed combustion boiler of the prior art in 50-110%, general load on boiler daytime is high, negative at night
Lotus is low, sometimes even as low as 20-30%, and the fluidized-bed combustion boiler of the prior art can not just be run when load is less than 50%, because
Furnace bottom air compartment air inlet is small, blows motionless fire coal, is unable to fluidized bed combustion, and furnace bottom air compartment air inlet is big, and coal temperature is blown low, easily extinguishing,
So existing fluidized-bed combustion boiler is most afraid of night underrun.The present invention uses the equivalent diameter for changing as-fired coal, that is, will
The grain size of as-fired coal is so broken that be re-fed into burner hearth after smaller, reduces air quantity because coal particle size is small, furnace bottom air compartment very little into
Wind, so that it may to blow afloat fire coal, realize fluidized bed combustion.This technological break-through of the invention, can be by fluidized-bed combustion boiler minimum load
Runtime value is down to 20% from 50%, greatly improves the technical performance and performance of fluidized-bed combustion boiler.And high load capacity is being needed to transport
When row, as long as restore coal bottom material is sent into burner hearth through feed hopper and screw(-type) feeder.
Meanwhile the discharged nitrous oxides of boiler combustion, national standard 200mg/m3, minimum discharge area is 50 mg/m3,
And existing fluidized-bed combustion boiler its discharged nitrous oxides are in 250 mg/m3More than, therefore, the discharged nitrous oxides for reducing boiler are difficult
Degree is very big.For this purpose, some fluidized-bed combustion boilers reduce discharged nitrous oxides using the out of stock method of ammonium hydroxide is sprayed in stove, investment is big,
Operating cost is high, and denitrification rate also only has 50% or so, while ammonium hydroxide is very big to boiler tail corrosion, influences boiler life.With
For 130T fluidized-bed combustion boilers, investment is up to 2,000,000, additional operating cost.Also the fluidized-bed combustion boiler having is restored using stove external oxidation
Method is out of stock, reduces discharged nitrous oxides with this, invests bigger, up to 5,000,000.The present invention use pre-burning stage anoxycausis,
The clean-burning method of Secondary Air is added in burner hearth again to reduce the discharge of nitrogen oxides, this technological break-through of the invention makes
The discharged nitrous oxides of fluidized-bed combustion boiler are down to 50 mg/m of ＜3, reach minimum discharge standard, while steam parameter deviation ＜ 5%,
Thermal efficiency ＞ 90%.
Description of the drawings：
Fig. 1 is structure of the invention schematic diagram.
Reference sign：1-automatic control device, 2-charging systems, 3-reducing equipment, 4-screw(-type) feeders,
5-burner hearths, 6-oxygen content tables, 7-bag filters, 8-chimneys, 9-air-introduced machines, 10-reflux wind turbines, 11-air blowers,
12-separators, 13-drums, l4-superheater, 15-economizers, 16-air preheaters, 17-secondary air inlets.
Specific implementation mode：
Referring to Fig. 1, fluidized-bed combustion boiler Load Regulation of the invention and low nitrogen burning method, the Load Regulation are low negative
The equivalent diameter for changing as-fired coal when lotus, reduces critical flow velocity, load is made to reach minimum value, and one is equipped with when high load capacity is adjusted
Charging system；Oxygen amount generates CO to the low nitrogen burning in the pre-burning stage anoxycausis of coal in order to control, and NOx is restored with CO, raw
At N2With CO2, Secondary Air is added, CO fully burns in the after-flame stage, reduces incomplete combustion loss；It is described to change into stove
The equivalent diameter of coal is to increase the reducing equipment of a coal, and the as-fired coal on belt is given after reducing equipment, then by spiral
Material machine is sent into burner hearth.One charging system of outfit when high load capacity is adjusted is to increase feed hopper and screw feeder in stokehold
Qualified coal bottom material is entered feed hopper through bucket elevator in advance, then enters burner hearth through screw(-type) feeder by machine；The reducing equipment
For crusher, it is 5mm coal grains below that the coal grain that grain size is 8-10mm, which is broken into grain size,；The pre-burning stage anoxic in coal
Burning is：The flue gas of boiler tail bag filter is connected by the wind turbine that flows back with pipeline and is delivered to blower inlet, air blast
Machine is by the flue gas and the air inlet for being delivered to burner hearth bottom together with natural air after air preheater preheats；The addition is secondary
Wind is to be equipped with secondary air inlet in the middle part of burner hearth；The control oxygen amount is：Pacify between the superheater and economizer of boiler tail
Equipped with the oxygen content table or amount of nitrogen oxides epoxy content table or nitrogen oxidation for measuring oxygen content or amount of nitrogen oxides in flue gas
Object content table, on the one hand carries out oxygen content or amount of nitrogen oxides instruction, and on the other hand output measures oxygen content or nitrogen oxides
Cont signal is connected to automatic control device, and automatic control device carries out output control signal connection reflux wind after signal processing
Machine, the uninterrupted of control reflux wind turbine.
A kind of fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus of the present invention, including the burner hearth of fluidized-bed combustion boiler, stream
Drum, the sequentially connected separator in fluidized-bed combustion boiler tail portion, superheater, economizer, the prefabricated device of air, cloth at the top of fluidized bed boiler
Bag dust collector, air-introduced machine and chimney add shunt conduit connection on the flue between bag filter and air-introduced machine
The output channel of the input port of reflux wind turbine, the wind turbine that flows back is connected to the entrance of air blower, and the output air hose of air blower passes through
The air inlet to fluidized-bed combustion boiler is connected after air preheater；A coal is added in the burner hearth side of fluidized-bed combustion boiler
Reducing equipment and a set of coal charging system, the reducing equipment of coal is exported is connected to fluidized-bed combustion boiler by screw(-type) feeder
The charging system of burner hearth, coal is also connected to the burner hearth of fluidized-bed combustion boiler；Be equipped in the middle part of the burner hearth of fluidized-bed combustion boiler it is secondary into
Air port；It is equipped on flue between superheater and economizer and measures the oxygen of oxygen content or amount of nitrogen oxides in flue gas
Content table or amount of nitrogen oxides table, oxygen content table or the defeated content table of nitrogen oxides, which go out measuring signal and be connected to, automatically controls dress
It sets, automatic control device output control signal connects and controls reflux wind turbine；The reducing equipment of the coal is crusher；It is described
The charging system of coal is that stokehold increases feed hopper, and coal bottom material is entered feed hopper feed hopper output connection screw feeder through bucket elevator
Machine, the burner hearth of screw(-type) feeder output connection fluidized-bed combustion boiler.
Claims (4)
1. a kind of fluidized-bed combustion boiler Load Regulation and low nitrogen burning method, the Load Regulation changes as-fired coal when being underload
Equivalent diameter, low nitrogen burning oxygen amount in order to control generates CO in the pre-burning stage anoxycausis of coal, NOx restored with CO,
Generate N2With CO2, Secondary Air is added, CO fully burns in the after-flame stage, reduces incomplete combustion loss；It is characterized in that：
The Load Regulation reduces critical flow velocity when being underload, and load is made to reach minimum value, and one is equipped with when high load capacity is adjusted
Charging system；The equivalent diameter for changing as-fired coal is to increase the reducing equipment of a coal, and the as-fired coal on belt is by becoming
After diameter equipment, then burner hearth is sent by screw(-type) feeder；One charging system of outfit when high load capacity is adjusted is in stokehold
Increase feed hopper and screw(-type) feeder, qualified coal bottom material entered into feed hopper through bucket elevator in advance, then through screw(-type) feeder into
Enter burner hearth；Above-mentioned reducing equipment is crusher, and it is 5mm coal grains below that the coal grain that grain size is 8-10mm, which is broken into grain size,；
The pre-burning stage anoxycausis in coal is：The flue gas of boiler tail bag filter is connected by the wind turbine that flows back with pipeline
Be delivered to blower inlet, air blower by the flue gas be delivered to burner hearth bottom after air preheater preheats together with natural air
Air inlet；The addition Secondary Air is to be equipped with secondary air inlet in the middle part of burner hearth；The control oxygen amount is：In boiler tail
Superheater and economizer between be equipped with measure flue gas in the oxygen content table or nitrogen oxides of oxygen content or amount of nitrogen oxides
On the one hand content table, oxygen content table or amount of nitrogen oxides table carry out oxygen content or amount of nitrogen oxides instruction, on the other hand defeated
Go out to measure oxygen content or amount of nitrogen oxides signal is connected to automatic control device, automatic control device carries out defeated after signal processing
Go out to control signal and connects back to flow fan, the uninterrupted of control reflux wind turbine.
2. a kind of fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus, including the burner hearth of fluidized-bed combustion boiler, fluidized-bed combustion boiler top
The drum in portion, the sequentially connected separator in fluidized-bed combustion boiler tail portion, superheater, economizer, the prefabricated device of air, bag filter,
Air-introduced machine and chimney add a shunt conduit on the flue between bag filter and air-introduced machine and connect back to flow fan
The output channel of input port, the wind turbine that flows back is connected to the entrance of air blower, and the output air hose of air blower is through air preheater
The air inlet to fluidized-bed combustion boiler is connected afterwards；The reducing equipment of a coal is added in the burner hearth side of fluidized-bed combustion boiler
With the charging system of a set of coal, the reducing equipment output of coal is connected to the burner hearth of fluidized-bed combustion boiler by screw(-type) feeder, coal
Charging system is also connected to the burner hearth of fluidized-bed combustion boiler；Secondary air inlet is installed in the middle part of the burner hearth of fluidized-bed combustion boiler.
3. fluidized-bed combustion boiler Load Regulation according to claim 2 and low nitrogen combustion apparatus, it is characterised in that：In superheater
It is equipped on flue between economizer and measures the oxygen content table or nitrogen oxygen of oxygen content or amount of nitrogen oxides in flue gas
Compound content table, oxygen content table or amount of nitrogen oxides table output measuring signal are connected to automatic control device, automatically control dress
Output control signal is set to connect and control reflux wind turbine.
4. fluidized-bed combustion boiler Load Regulation according to claim 2 and low nitrogen combustion apparatus, it is characterised in that：The coal
Reducing equipment be crusher；The charging system of the coal is that stokehold increases feed hopper, and coal bottom material is carried through bucket elevator into feed
Storehouse, feed hopper output connection screw(-type) feeder, the burner hearth of screw(-type) feeder output connection fluidized-bed combustion boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307882.5A CN105841488B (en) | 2016-05-11 | 2016-05-11 | Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307882.5A CN105841488B (en) | 2016-05-11 | 2016-05-11 | Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841488A CN105841488A (en) | 2016-08-10 |
| CN105841488B true CN105841488B (en) | 2018-10-02 |
Family
ID=56591060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307882.5A Active CN105841488B (en) | 2016-05-11 | 2016-05-11 | Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841488B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369592A (en) * | 2016-11-07 | 2017-02-01 | 四川活氏锅炉节能环保有限公司 | Low-nitrogen combustion device and low-nitrogen combustion method |
| CN110763008A (en) * | 2019-09-20 | 2020-02-07 | 沈忠东 | Low-nitrogen combustion method for supporting combustion by primary air mixed oxygen-poor air in combustor |
| CN115487658A (en) * | 2022-09-30 | 2022-12-20 | 北京天地融创科技股份有限公司 | Boiler denitration system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604116A (en) * | 2013-11-22 | 2014-02-26 | 张建存 | Device and method for reducing oxynitrides smoke product of circulating fluidized bed boiler |
| CN104728834A (en) * | 2015-04-09 | 2015-06-24 | 张振华 | Circulating fluidized bed boiler reducing atmosphere combustion technology |
| CN204786527U (en) * | 2015-06-13 | 2015-11-18 | 山东恒涛节能环保有限公司 | Nitrogen oxide low emission circulating fluidized bed boiler |
| CN105299632A (en) * | 2015-10-26 | 2016-02-03 | 何相助 | Fully-sealing micro-particle circulating fluidized bed boiler combustion process and equipment |
| CN205747964U (en) * | 2016-05-11 | 2016-11-30 | 何相助 | Fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004205161A (en) * | 2002-12-26 | 2004-07-22 | Hitachi Ltd | Solid fuel boiler and boiler combustion method |
-
2016
- 2016-05-11 CN CN201610307882.5A patent/CN105841488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604116A (en) * | 2013-11-22 | 2014-02-26 | 张建存 | Device and method for reducing oxynitrides smoke product of circulating fluidized bed boiler |
| CN104728834A (en) * | 2015-04-09 | 2015-06-24 | 张振华 | Circulating fluidized bed boiler reducing atmosphere combustion technology |
| CN204786527U (en) * | 2015-06-13 | 2015-11-18 | 山东恒涛节能环保有限公司 | Nitrogen oxide low emission circulating fluidized bed boiler |
| CN105299632A (en) * | 2015-10-26 | 2016-02-03 | 何相助 | Fully-sealing micro-particle circulating fluidized bed boiler combustion process and equipment |
| CN205747964U (en) * | 2016-05-11 | 2016-11-30 | 何相助 | Fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105841488A (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103216840B (en) | Formula of storing up in coal-burning boiler coal pulverizer reduces nitric oxide system | |
| CN203223912U (en) | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill | |
| CN105841488B (en) | Fluidized-bed combustion boiler Load Regulation and low nitrogen burning method and apparatus | |
| CN209495349U (en) | A kind of biomass molding fuel and coal direct-coupling pulverized coal preparation system | |
| CN106838892A (en) | A kind of energy-efficient Circulating Fluidized Bed Boiler of low nitrogen | |
| CN105864748A (en) | Combined combustion system of chain boiler | |
| CN208475369U (en) | Coal-burning boiler pulverized coal preparation system | |
| CN104344398A (en) | Middle storage type hot wind powder feeding and pulverizing system | |
| JPS5864409A (en) | Pulverized coal firing boiler | |
| CN109578993B (en) | Horizontal coal-fired furnace and flue gas recirculation system and operation method thereof | |
| CN205747964U (en) | Fluidized-bed combustion boiler Load Regulation and low nitrogen combustion apparatus | |
| CN203549793U (en) | Combined type chain grate furnace with pulverized coal burner | |
| CN203586193U (en) | Middle storing bin type hot wind powder feeding and manufacturing system | |
| CN104990072A (en) | Efficient and low NOx emission fluidized bed boiler | |
| CN209801470U (en) | low-nitrogen combustion system of circulating fluidized bed boiler | |
| CN204693395U (en) | A kind of Anti-blockage fluidized-bed combustion boiler | |
| CN207778428U (en) | A kind of desulfuration in furnace device of optimization material returning device operation | |
| CN212511240U (en) | Multi-coal-type adaptive pulverizing system | |
| CN206094052U (en) | Bed coal fired boiler economizer is vulcanized in high -efficient circulation | |
| CN207648780U (en) | A kind of fluidized wind arrangement system of circulating fluidized bed boiler | |
| CN104848243B (en) | A kind of half transporting pulverized coal with exhaust gas method and boiler using intermediate storage-type pulverized coal preparation system | |
| CN108180468A (en) | A kind of in due course oxygen supply decoupling burning device of multistage air distribution across Load Regulation | |
| CN219955312U (en) | Coal feeding system for CFB boiler heating unit wide load denitration technology | |
| CN204213918U (en) | A kind of multiple flow burnout degree spray nozzle device | |
| CN208779442U (en) | A kind of low nitrogen burning coal-powder boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |