CN108758679A - A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying - Google Patents
A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying Download PDFInfo
- Publication number
- CN108758679A CN108758679A CN201810812135.6A CN201810812135A CN108758679A CN 108758679 A CN108758679 A CN 108758679A CN 201810812135 A CN201810812135 A CN 201810812135A CN 108758679 A CN108758679 A CN 108758679A
- Authority
- CN
- China
- Prior art keywords
- coal
- pulverized
- lack
- blower mill
- preparation system
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
Half direct-firing blower mill pulverized coal preparation system is dried the invention discloses a kind of single medium, which includes interconnected successively stove cigarette mixing chamber, predrying pipe, blower mill, pulverized-coal collector and coal, pulverulent fuel mixer；Wherein, the outlet of the smoke inlet and boiler furnace of stove cigarette mixing chamber, the discharge of coal, pulverulent fuel mixer is connected to the main pulverized coal burner being arranged on boiler furnace, predrying pipe is equipped with coal feeder, the lack of gas outlet of pulverized-coal collector is equipped with row powder fan, and stove cigarette mixing chamber is also connected to lack of gas conveyance conduit.The problems such as this pulverized coal preparation system can effectively solve the problem that existing blower mill pulverized coal preparation system pressure head be insufficient when for large-sized boiler, and boiler furnace burner arrangement form is unrestricted, drier is using single medium high-temperature flue gas and coordinates recycling exhaust steam temperature adjustment, system temperature is adjusted simply, conveniently, microfine coal in lack of gas is used as reburning fuel, the NO of boiler can be reducedxEmission level.
Description
Technical field
The present invention relates to coal burning boiler of power station field of combustion technology, more particularly to a kind of blower mill pulverized coal preparation system.
Background technology
When using the lignite of higher moisture, currently used pulverized coal preparation system is the direct-firing three media drying system of blower mill
Powder system, but there are following deficiencies for the blower mill pulverized coal preparation system：
1. with the increase of boiler capacity, the length and height in the required stove pipe road of pulverized coal preparation system are intended to accordingly increase,
It is big to often result in pulverized coal preparation system resistance, blower mill draught head is insufficient；
2. due to being limited by pulverized coal preparation system pressure head, burner can only use tangential polygonal arrangement, and arrangement form is restricted, right
The group of boiler furnace aerodynamic field is woven with larger impact；
3. since drier is more using high-temperature flue gas and system evaporable water, to make the inert gas in burner First air
It is big with vapor ratio, easily cause burning fire difficulty.
Invention content
Technical problem to be solved by the invention is to provide a kind of single media to dry half direct-firing blower mill powder system
The problems such as system, the system can effectively solve the problem that existing blower mill pulverized coal preparation system pressure head are insufficient when for large-sized boiler, and
And boiler furnace burner arrangement form is unrestricted, drier is using single medium high-temperature flue gas and coordinates recycling exhaust steam tune
Temperature, system temperature adjust simply, conveniently, the microfine coal in lack of gas are used as reburning fuel, can reduce the NO of boilerx
Emission level.
The technical solution adopted by the present invention to solve the technical problems is：A kind of list medium half direct-firing fan coal-grinding of drying
Mechanism powder system, including interconnected successively stove cigarette mixing chamber, predrying pipe, blower mill, pulverized-coal collector and coal
Powder mixer；Wherein, the outlet of the smoke inlet and boiler furnace of the stove cigarette mixing chamber, the coal of the coal, pulverulent fuel mixer
Powder outlet is connected to the main pulverized coal burner being arranged on boiler furnace, and the predrying pipe is equipped with coal feeder, described
The lack of gas outlet of pulverized-coal collector is equipped with row powder fan, and stove cigarette mixing chamber is also connected to lack of gas conveyance conduit.
Further, powder feeding fluidized bed mixer is equipped between the row powder fan and the powder feeding air flow inlet of coal, pulverulent fuel mixer,
The hot-wind inlet of the powder feeding fluidized bed mixer is also connected to the air preheater for being located at boiler tail, the air preheater
It is connected with a pressure fan, powder feeding air-flow is made of lack of gas and hot wind, can not only be played the role of to main pulverized coal burner powder feeding,
And burner First air can also be made to be made of by proper proportion mixing hot wind and lack of gas, i.e., the ingredient of burner First air and
Parameter is controllable, to efficiently solve the problems, such as burning fire difficulty.
Further, lack of gas pipeline is equipped between the row powder fan and stove cigarette mixing chamber, the drier of pulverized coal preparation system uses
Single medium high-temperature flue gas simultaneously coordinates recycling exhaust steam temperature adjustment so that the temperature of pulverized coal preparation system is adjusted very simply, conveniently.
Further, lack of gas pipeline, institute are equipped between the row powder fan and the lack of gas burner being arranged on boiler furnace
The lack of gas burner stated between burnout degree and main pulverized coal burner, by by the part lack of gas in pulverized coal preparation system from main coal dust
Appropriate location between burner and burnout degree is made a gift to someone burner hearth, and the microfine coal carried in lack of gas can be made as reburning fuel,
The quickly consumption remaining oxygen amount in main burning area, deepens the reduction degree of reducing zone, to the NO for making main burning area generatexIt is reduced into N2,
And then play the NO for reducing boilerxThe effect of emission level.
Further, it is equipped with tailing separator between the blower mill and pulverized-coal collector, realizes unqualified coarse powder
It separates, and is returned in blower mill and continues to grind, to ensure that all coal dusts into main pulverized coal burner close
Lattice, it is ensured that efficiency of combustion.
Further, pass through stove cigarette between the boiler furnace outlet, stove cigarette mixing chamber, predrying pipe and blower mill
Pipeline is interconnected；Blower mill, tailing separator, pulverized-coal collector, coal, pulverulent fuel mixer and the main pulverized coal burner
Between by pulverized coal channel be interconnected.
Further, by weary between the pulverized-coal collector, row powder fan, powder feeding fluidized bed mixer and coal, pulverulent fuel mixer
Feed channel is interconnected, and is interconnected by hot air duct between powder feeding fluidized bed mixer and air preheater, and described
Lack of gas pipeline and hot air duct on be equipped with pipeline valve, realize the keying to pipeline.
Further, pulverizer coal feeder is equipped between the pulverized-coal collector and coal, pulverulent fuel mixer, the pulverizer coal feeder is detached with fine powder
Pulverized coal channel between device is equipped with flapper, is realized to coal, pulverulent fuel mixer by the mutual cooperation effect of flapper and pulverizer coal feeder
To coal.
The beneficial effects of the invention are as follows：
1. pulverized coal preparation system is provided with row powder fan in blower mill export pipeline, and by the pressure balance of pulverized coal preparation system point
It is set to the outlet of coarse powder separating device position after blower mill, makes the pressure head of blower mill only overcoming the resistance of equalization point
Power, and the resistance after equalization point is overcome by row powder fan, to increase the draught head of pulverized coal preparation system；
2. the draught head due to this pulverized coal preparation system is enough, the arrangement form of burner is unrestricted, can coordinate tangential
Burner hearth can also coordinate opposed firing burner hearth；
3. since this system is provided with coal dust classifier in blower mill export pipeline and uses half direct-firing system so that
Burner First air is made of hot wind and lack of gas by proper proportion mixing, i.e., the ingredient of burner First air and parameter are controllable,
To efficiently solve the problems, such as burning fire difficulty；
4. the drier of pulverized coal preparation system is using single medium high-temperature flue gas and coordinates recycling exhaust steam temperature adjustment, therefore the temperature of system
It adjusts very simply, conveniently；
5. by the way that appropriate location of the part lack of gas in this pulverized coal preparation system between main pulverized coal burner and burnout degree is made a gift to someone stove
Thorax can make the microfine coal carried in lack of gas as reburning fuel, quickly consume the remaining oxygen amount in main burning area, deepen reduction
The reduction degree in area, to the NO for making main burning area generatexIt is reduced into N2, and then play the NO for reducing boilerxThe work of emission level
With.
Description of the drawings
Fig. 1 is the structural schematic diagram that single medium of the invention dries half direct-firing blower mill pulverized coal preparation system；
In figure label for：1- stove cigarette mixing chambers, 2- stove pipe road, 3- coal feeders, 4- predrying pipes, 5- blower mills, 6-
Tailing separator, 7- pulverized-coal collectors, 8- flappers, 9- pulverizer coal feeders, 10- coal, pulverulent fuel mixers, 11- row powder fans, 12- powder feeding gas
Flow mixer, 13- lack of gas pipelines, 14- pulverized coal channels, 15- hot air ducts, 16- pipeline valves, 21- burner hearths, 22- air preheats
Device, 23- pressure fan, 24- main pulverized coal burners, 25- lack of gas burners, 26- burnout degrees.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, single medium of the present invention dries half direct-firing blower mill pulverized coal preparation system, including mutually interconnect successively
Logical stove cigarette mixing chamber 1, predrying pipe 4, blower mill 5, pulverized-coal collector 7 and coal, pulverulent fuel mixer 10；Wherein, the stove
The outlet of the smoke inlet and boiler furnace 21 of cigarette mixing chamber 1, the discharge of the coal, pulverulent fuel mixer 10 be arranged in
Main pulverized coal burner 24 on boiler furnace is connected to, and the predrying pipe 4 is equipped with coal feeder 3, the pulverized-coal collector 7
Lack of gas outlet be equipped with row powder fan 11, stove cigarette mixing chamber 1 is also connected to lack of gas conveyance conduit.
As a preferred embodiment, being equipped with powder feeding gas between the row powder fan 11 and the powder feeding air flow inlet of coal, pulverulent fuel mixer 10
Mixer 12 is flowed, the hot-wind inlet of the powder feeding fluidized bed mixer 12 is also connected to the air preheater 22 for being located at boiler tail,
The air preheater 22 is connected with a pressure fan 23.
As a preferred embodiment, being equipped with lack of gas pipeline 13 between the row powder fan 11 and stove cigarette mixing chamber 1.
As a preferred embodiment, being equipped between the row powder fan 11 and the lack of gas burner 25 being arranged on boiler furnace weary
Feed channel 13, the lack of gas burner 25 is between burnout degree 26 and main pulverized coal burner 24.
As a preferred embodiment, being equipped with tailing separator 6 between the blower mill 5 and pulverized-coal collector 7.
As another preferred embodiment, pulverizer coal feeder 9 is equipped between the pulverized-coal collector 7 and coal, pulverulent fuel mixer 10, it is described to give powder
Pulverized coal channel 14 between machine 9 and pulverized-coal collector 7 is equipped with flapper 8.
Specifically, leading between the outlet of boiler furnace 21, stove cigarette mixing chamber 1, predrying pipe 4 and blower mill 5
Stove pipe road 2 is crossed to be interconnected；The blower mill 5, tailing separator 6, pulverized-coal collector 7, coal, pulverulent fuel mixer 10 and
It is interconnected by pulverized coal channel 14 between main pulverized coal burner 24；The pulverized-coal collector 7, row powder fan 11, powder feeding gas
It flows and is interconnected by lack of gas pipeline 13 between mixer 12 and coal, pulverulent fuel mixer 10, powder feeding fluidized bed mixer 12 and air preheat
It is interconnected by hot air duct 15 between device 22, and pipeline is equipped on the lack of gas pipeline 13 and hot air duct 15
Valve 16.
The operational process that list medium of the present invention dries half direct-firing blower mill pulverized coal preparation system is as follows：
When system operation, the high-temperature flue gas for extracting boiler furnace outlet first is transported in stove cigarette mixing chamber, and is mixed in stove cigarette
After being mixed into design temperature with the part lack of gas from lack of gas conveyance conduit in room, then predrying is sent to by stove pipe road
In pipe, predrying is carried out to the raw coal from coal feeder, carries out grinding and the back tender of raw coal in blower mill later
Sequence, the coal dust for then generating grinding and lack of gas are sent into tailing separator and carry out coarse powder separation, and underproof coal dust is returned
Blower mill continues to grind, and qualified coal dust and lack of gas enter pulverized-coal collector and carry out fine powder and lack of gas separation together；It isolates
Fine breeze by pulverizer coal feeder coordinate flapper to coal, pulverulent fuel mixer to powder, the lack of gas isolated pass through after row powder fan pressurizes
It sends out on three tunnels of lack of gas pipeline point：First via lack of gas are sent to stove cigarette mixing chamber, and the adjusting foundation of the road weary tolerance is lack of gas and high temperature
The desiccant temperature needed for system can be obtained after flue gas mixing；Second tunnel lack of gas send in powder feeding fluidized bed mixer with carry out Self-air-heating
Hot wind in pipeline mixes composition powder feeding air-flow in powder feeding fluidized bed mixer, and the adjusting foundation of the road weary tolerance is lack of gas and heat
Temperature, component and the coal-air ratio etc. after coal, pulverulent fuel mixer of the powder feeding air-flow needed for system can be obtained after wind mixing；The
Three tunnel residue lack of gas are then fed directly to lack of gas burner by lack of gas pipeline and burn；It is mixed to enter coal dust for powder feeding gas stream later
After being mixed with coal dust in clutch, then is sent to boiler main pulverized coal burner and burnt by pulverized coal channel.
Beneficial effects of the present invention are：
1. pulverized coal preparation system is provided with row powder fan in blower mill export pipeline, and by the pressure balance of pulverized coal preparation system point
It is set to the outlet of coarse powder separating device position after blower mill, makes the pressure head of blower mill only overcoming the resistance of equalization point
Power, and the resistance after equalization point is overcome by row powder fan, to increase the draught head of pulverized coal preparation system；
2. the draught head due to this pulverized coal preparation system is enough, the arrangement form of burner is unrestricted, can coordinate tangential
Burner hearth can also coordinate opposed firing burner hearth；
3. since this system is provided with coal dust classifier in blower mill export pipeline and uses half direct-firing system so that
Burner First air is made of hot wind and lack of gas by proper proportion mixing, i.e., the ingredient of burner First air and parameter are controllable,
To efficiently solve the problems, such as burning fire difficulty；
4. the drier of pulverized coal preparation system is using single medium high-temperature flue gas and coordinates recycling exhaust steam temperature adjustment, therefore the temperature of system
It adjusts very simply, conveniently；
5. by the way that appropriate location of the part lack of gas in this pulverized coal preparation system between main pulverized coal burner and burnout degree is made a gift to someone stove
Thorax can make the microfine coal carried in lack of gas as reburning fuel, quickly consume the remaining oxygen amount in main burning area, deepen reduction
The reduction degree in area, to the NO for making main burning area generatexIt is reduced into N2, and then play the NO for reducing boilerxThe work of emission level
With.
It should be understood that the above-mentioned specific implementation mode of the present invention is used only for exemplary illustration or explains the present invention's
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of list medium dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that including what is be interconnected successively
Stove cigarette mixing chamber（1）, predrying pipe（4）, blower mill（5）, pulverized-coal collector（7）And coal, pulverulent fuel mixer（10）；Wherein,
The stove cigarette mixing chamber（1）Smoke inlet and boiler furnace（21）Outlet, the coal, pulverulent fuel mixer（10）Coal dust
Export and be arranged in the main pulverized coal burner on boiler furnace（24）Connection, the predrying pipe（4）It is equipped with coal feeder
（3）, the pulverized-coal collector（7）Lack of gas outlet and coal, pulverulent fuel mixer（10）Between be equipped with row powder fan（11）, the mixing of stove cigarette
Room（1）Also it is connected to lack of gas conveyance conduit.
2. list medium according to claim 1 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Row powder fan（11）With coal, pulverulent fuel mixer（10）Powder feeding air flow inlet between be equipped with powder feeding fluidized bed mixer（12）, the powder feeding
Fluidized bed mixer（12）Hot-wind inlet also with the air preheater that is located at boiler tail（22）Connection, the air preheater
（22）With a pressure fan（23）It is connected.
3. list medium according to claim 1 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Row powder fan（11）With stove cigarette mixing chamber（1）Between be equipped with lack of gas pipeline（13）.
4. list medium according to claim 1 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Row powder fan（11）With the lack of gas burner being arranged on boiler furnace（25）Between be equipped with lack of gas pipeline（13）, the lack of gas
Burner（25）Positioned at burnout degree（26）And main pulverized coal burner（24）Between.
5. list medium according to claim 2 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Blower mill（5）With pulverized-coal collector（7）Between be equipped with tailing separator（6）.
6. list medium according to claim 5 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Boiler furnace（21）Outlet, stove cigarette mixing chamber（1）, predrying pipe（4）And blower mill（5）Between pass through stove pipe road
（2）It is interconnected；The blower mill（5）, tailing separator（6）, pulverized-coal collector（7）, coal, pulverulent fuel mixer（10）And
Main pulverized coal burner（24）Between pass through pulverized coal channel（14）It is interconnected.
7. list medium according to claim 2 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Pulverized-coal collector（7）, row powder fan（11）, powder feeding fluidized bed mixer（12）And coal, pulverulent fuel mixer（10）Between pass through blast pipe
Road（13）It is interconnected, powder feeding fluidized bed mixer（12）With air preheater（22）Between pass through hot air duct（15）Mutually interconnect
It is logical, and in the lack of gas pipeline（13）And hot air duct（15）On be equipped with pipeline valve（16）.
8. list medium according to claim 6 dries half direct-firing blower mill pulverized coal preparation system, which is characterized in that described
Pulverized-coal collector（7）With coal, pulverulent fuel mixer（10）Between be equipped with pulverizer coal feeder（9）, the pulverizer coal feeder（9）With pulverized-coal collector（7）It
Between pulverized coal channel（14）It is equipped with flapper（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812135.6A CN108758679A (en) | 2018-07-23 | 2018-07-23 | A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812135.6A CN108758679A (en) | 2018-07-23 | 2018-07-23 | A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108758679A true CN108758679A (en) | 2018-11-06 |
Family
ID=63971252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810812135.6A Pending CN108758679A (en) | 2018-07-23 | 2018-07-23 | A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108758679A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959023A (en) * | 2019-04-17 | 2019-07-02 | 西安西热锅炉环保工程有限公司 | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method |
| CN112393269A (en) * | 2020-11-19 | 2021-02-23 | 西安热工研究院有限公司 | Process for large-proportion coal slime mixed burning of medium storage type coal pulverizing system |
| CN113757713A (en) * | 2021-09-02 | 2021-12-07 | 东方电气集团东方锅炉股份有限公司 | Powder making system of coal mill with staged combustion furnace smoke mixing and drying fan for power |
| CN114659082A (en) * | 2022-03-28 | 2022-06-24 | 西安热工研究院有限公司 | Method and system for increasing low-load denitration inlet smoke temperature by co-combustion of blast furnace gas |
| CN114673986A (en) * | 2022-03-24 | 2022-06-28 | 西安热工研究院有限公司 | System for improving powder burnout performance of tertiary air zone |
| WO2023202053A1 (en) * | 2022-04-20 | 2023-10-26 | 西安热工研究院有限公司 | Pulverized coal deep low-oxygen combustion system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761933A (en) * | 2010-01-15 | 2010-06-30 | 西安热工研究院有限公司 | Low-temperature furnace smoke sucking exhaust gas and hot air drying composite powder feeding bituminous coal and meagre coal universal type powder preparing system |
| CN202195493U (en) * | 2011-06-20 | 2012-04-18 | 上海机易电站设备有限公司 | Medium-speed milling pulverization system for flue gas-dried lignite |
| CN102889609A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Pulverizing system of smoke drying lignite coal steel ball mill |
| CN102889606A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite steel ball mill |
| CN102889608A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite fan mill |
| CN104197362A (en) * | 2014-09-16 | 2014-12-10 | 上海理工大学 | Fume-dried closed pulverization coal-fired boiler unit with function of exhaust water recovery |
| CN208735655U (en) * | 2018-07-23 | 2019-04-12 | 东方电气集团东方锅炉股份有限公司 | A kind of dry half direct-firing blower mill pulverized coal preparation system of list medium |
-
2018
- 2018-07-23 CN CN201810812135.6A patent/CN108758679A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761933A (en) * | 2010-01-15 | 2010-06-30 | 西安热工研究院有限公司 | Low-temperature furnace smoke sucking exhaust gas and hot air drying composite powder feeding bituminous coal and meagre coal universal type powder preparing system |
| CN202195493U (en) * | 2011-06-20 | 2012-04-18 | 上海机易电站设备有限公司 | Medium-speed milling pulverization system for flue gas-dried lignite |
| CN102889609A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Pulverizing system of smoke drying lignite coal steel ball mill |
| CN102889606A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite steel ball mill |
| CN102889608A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite fan mill |
| CN104197362A (en) * | 2014-09-16 | 2014-12-10 | 上海理工大学 | Fume-dried closed pulverization coal-fired boiler unit with function of exhaust water recovery |
| CN208735655U (en) * | 2018-07-23 | 2019-04-12 | 东方电气集团东方锅炉股份有限公司 | A kind of dry half direct-firing blower mill pulverized coal preparation system of list medium |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959023A (en) * | 2019-04-17 | 2019-07-02 | 西安西热锅炉环保工程有限公司 | It is a kind of using furnace cigarette as the unit pulverized-coal system of dried medium and method |
| CN112393269A (en) * | 2020-11-19 | 2021-02-23 | 西安热工研究院有限公司 | Process for large-proportion coal slime mixed burning of medium storage type coal pulverizing system |
| CN113757713A (en) * | 2021-09-02 | 2021-12-07 | 东方电气集团东方锅炉股份有限公司 | Powder making system of coal mill with staged combustion furnace smoke mixing and drying fan for power |
| CN114673986A (en) * | 2022-03-24 | 2022-06-28 | 西安热工研究院有限公司 | System for improving powder burnout performance of tertiary air zone |
| CN114659082A (en) * | 2022-03-28 | 2022-06-24 | 西安热工研究院有限公司 | Method and system for increasing low-load denitration inlet smoke temperature by co-combustion of blast furnace gas |
| WO2023202053A1 (en) * | 2022-04-20 | 2023-10-26 | 西安热工研究院有限公司 | Pulverized coal deep low-oxygen combustion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108758679A (en) | A kind of list medium half direct-firing blower mill pulverized coal preparation system of drying | |
| CN103216840B (en) | Formula of storing up in coal-burning boiler coal pulverizer reduces nitric oxide system | |
| CN101761933B (en) | Low-temperature furnace smoke sucking exhaust gas and hot air drying composite powder feeding bituminous coal and meagre coal universal type powder preparing system | |
| CN203223912U (en) | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill | |
| CN102494334A (en) | Coal powder combustion system used in high-moisture type coal oxygen-enriched combustion | |
| CN105864748A (en) | Combined combustion system of chain boiler | |
| CN102563687B (en) | Oxygen-enriched combustion system | |
| CN107559821A (en) | The multiple-pass industrial coal powder boiler of flue gas recirculation and vortex burner overhead | |
| CN208475369U (en) | Coal-burning boiler pulverized coal preparation system | |
| CN110260302B (en) | Combustion system for fluidized bed gasification fly ash | |
| CN105605560B (en) | Micro- discharge pulverized coal combustion system | |
| CN102588997B (en) | Oxygen enriched combustion system | |
| CN208735655U (en) | A kind of dry half direct-firing blower mill pulverized coal preparation system of list medium | |
| CN104132363A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN104132359A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CA2077491C (en) | Staged combustion of fuel or sludge to reduce nitrous oxide emission | |
| CN104132362A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN102588996A (en) | Oxygen-enriched combustion system | |
| CN109268866B (en) | Medium speed pulverizer directly blows formula buggy combustion system suitable for high moisture coal type | |
| CN105565687B (en) | A kind of limekiln breeze blowing induction system | |
| CN104132364A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN104132361A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN206160178U (en) | A mix stove cigarette device that is arranged in storage formula powder process system | |
| CN104781606A (en) | Method for operating a steam generator | |
| CN105135671B (en) | A kind of many level air-distribution coal dust firing hot-blast stoves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |