CN110056865A - A kind of combustion system grinding high water content brown coal using medium-speed pulverizer - Google Patents
A kind of combustion system grinding high water content brown coal using medium-speed pulverizer Download PDFInfo
- Publication number
- CN110056865A CN110056865A CN201910338936.8A CN201910338936A CN110056865A CN 110056865 A CN110056865 A CN 110056865A CN 201910338936 A CN201910338936 A CN 201910338936A CN 110056865 A CN110056865 A CN 110056865A
- Authority
- CN
- China
- Prior art keywords
- coal
- medium
- air
- burner
- speed pulverizer
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 29
- 239000003077 lignite Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000000227 grinding Methods 0.000 title claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000003245 coal Substances 0.000 claims description 56
- 239000002817 coal dust Substances 0.000 claims description 9
- 239000003517 fume Substances 0.000 claims description 8
- 239000012716 precipitator Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The invention discloses a kind of combustion systems that high water content brown coal is ground using medium-speed pulverizer.The high water content brown coal of combustion system burning total moisture Mt >=35%, and meet that high water content brown coal powder, steady combustion, after-flame, NOx emission is low, burner hearth does not occur seriously stains, the requirement of slagging and high temperature corrosion.The medium into primary air fan of the system consists of two parts, a part is air, primary air fan is entered by First air inlet pipeline, another part is flue gas recycled, enters primary air fan, the medium of primary air fan outlet by flue gas recycled pipeline, after air preheater heats, powder processed is carried out into medium-speed pulverizer by heat primary air pipeline.
Description
Technical field
The present invention relates to a kind of achievable boiler safety, economy, low NOxUse total moisture Mt>=35% high water content brown coal
Combustion system.
Background technique
Lignite accounts for the 25% of worldwide coal reserves, using lignite as the generating set of designing coal quality, following also larger
Demand.
Currently based on the low NO of the lignite of medium-speed pulverizerxCombustion system may be only available for grinding total moisture MtIn < 35%, it is low
The lignite of moisture, and that there are pulverized coal preparation system drying capacities is insufficient, primary air ratio is high, burning tissues are difficult, boiler scaling is serious,
NOxDischarge the problems such as high.
By taking certain 660MW supercritical unit as an example, as shown in Figure 1, grinding the lignite of low, middle moisture using medium-speed pulverizer, burn
System is mainly by boiler body 1, First air inlet pipeline 2, primary air fan 3, air preheater 4, heat primary air pipeline 5, middling speed
Grind 6, pulverized coal channel 7, burner 8, secondary air fan 9, hot secondary air duct 10, denitrification apparatus 11, electric precipitator 12, air-introduced machine
13, desulfurizer 14 and chimney 15 form.
The cold First air that primary air fan 3 exports, is heated by air preheater 4, is entered by heat primary air pipeline 5
Medium-speed pulverizer 6 carries coal dust, enters back into burner hearth into burner 8 by pulverized coal channel 7 and burn.What secondary air fan 9 exported
Secondary Air is heated by air preheater 4, enters back into burner hearth auxiliary into burner 8 by hot secondary air duct 10
Burning.The hot fume that the burning of boiler body 1 generates, after carrying out denitration process into denitrification apparatus 11, into air preheater 4,
After the heat exchange for carrying out hot fume and First air and Secondary Air in air preheater 4, into electric precipitator 12, it is dusted processing
Afterwards, after being pressurized by air-introduced machine 13, atmosphere is discharged by chimney 15 after carrying out desulfurization process into desulfurizer 14.
In this example, the medium as powder processed and drying brown coal is air, when total moisture >=30% of lignite, required one
The temperature and flow of secondary wind just need to be specifically designed, and are promoted.The promotion of air temperature, by air preheater 4 in
The limitation of speed mill 6, under normal circumstances, the maximum temperature for the First air that air preheater 4 exports can reach 420 DEG C, medium-speed pulverizer 6
The entrance maximum temperature of the First air of permission can reach 400 DEG C.And the flow enhancement of First air, by primary air ratio, also
It is the limitation of the ratio of the total air for combustion of a wind flow and entrance boiler, for safety, the economy for guaranteeing boiler combustion
Property and low NOxEmission performance, primary air ratio cannot be greater than 40%.So due to temperature and flow by above-mentioned First air
Limitation, when using medium-speed pulverizer combustion system, the total moisture M for the lignite that can be usedtAre as follows: Mt< 35%.
Summary of the invention
The object of the present invention is to provide a kind of to grind the combustion system of high water content brown coal, it can be achieved that boiler is pacified using medium-speed pulverizer
Entirely, economic, low NOx uses total moisture Mt>=35% high water content brown coal.
To achieve the above object, technical solution of the present invention provides a kind of combustion that high water content brown coal is ground using medium-speed pulverizer
Burning system, including boiler body, the hot fume that boiler body burning generates enter after denitrification apparatus carries out denitration process and enter sky
Air preheater, the hot fume after the heat exchange of air preheater passes through cigarette successively after electric precipitator, air-introduced machine and desulfurizer out
Chimney is discharged into atmosphere；The Secondary Air of secondary air fan outlet passes through hot secondary air duct after air preheater and hot fume heat exchange
Into burner, enter back into the burner hearth auxiliary combustion of boiler body, which is characterized in that into primary air fan medium by two parts
Composition, a part are air, and another part is the flue gas recycled of electric precipitator output, enter one by flue gas recycled pipeline
The medium of secondary blower, primary air fan outlet enters medium-speed pulverizer system by heat primary air pipeline after air preheater heats
The coal dust of powder, middling speed disintegrating outlet enters burner.
Preferably, the air enters the primary air fan by First air inlet pipeline.
Preferably, the flue gas recycled pipeline is equipped with flue gas recycled flow controllable register and flue gas recycled flow
Meter；The First air inlet pipeline is equipped with a wind flow controllable register and First air flowmeter；Pass through flue gas recycled stream
It measures controllable register and flue gas recycled flowmeter and a wind flow controllable register and First air flowmeter adjusts and enters described one
The flow of two parts medium of secondary blower, to meet powder requirement processed.
Preferably, the burner includes thick coal culm burner and thin powdered coal burner；The coal dust of the middling speed disintegrating outlet
Entering coal powder light-dark separation device via pulverized coal channel, coal dust is separated into thick coal culm and thin powdered coal by coal powder light-dark separation device,
Thick coal culm enters thick coal culm burner via thick coal culm pipeline, and thin powdered coal enters thin powdered coal burner via thin powdered coal pipeline, dense
Light two strands of coal dusts all burn into the burner hearth of the boiler body.
Preferably, the Secondary Air of the secondary air fan outlet is heated by air preheater, passes through hot secondary air channel
Road enters thick coal culm burner and thin powdered coal burner simultaneously, enters back into the burner hearth auxiliary combustion of the boiler body.
The combustion system of high water content brown coal is ground, it can be achieved that boiler safety, warp using medium-speed pulverizer the present invention provides a kind of
Ji, low NOx use the high water content brown coal of total moisture Mt >=35%.
Detailed description of the invention
Fig. 1 is to grind total moisture M using medium-speed pulverizertThe combustion system schematic diagram of the lignite of < 35%.
Fig. 2 is that the present invention uses medium-speed pulverizer to grind MtThe combustion system schematic diagram of >=35% lignite.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
As shown in Fig. 2, a kind of combustion system that high water content brown coal is ground using medium-speed pulverizer provided by the invention, mainly by pot
Furnace body 1, First air inlet pipeline 2, primary air fan 3, air preheater 4, heat primary air pipeline 5, medium-speed pulverizer 6, pulverized coal channel
7, secondary air fan 9, hot secondary air duct 10, denitrification apparatus 11, electric precipitator 12, air-introduced machine 13, desulfurizer 14, chimney 15,
18, flue gas recycled pipeline 16, flue gas recycled flow controllable register 17, flue gas recycled flowmeter wind flows adjust gear
Plate 19, First air flowmeter 20, coal powder light-dark separation device 21, thick coal culm pipeline 22, thin powdered coal pipeline 23, thick coal culm burner
24, thin powdered coal burner 25 forms.
Medium into primary air fan 3 consists of two parts, and a part is air, enters one by First air inlet pipeline 2
Secondary blower 3, another part are flue gas recycled, enter primary air fan 3 by flue gas recycled pipeline 16.Primary air fan 3 exports
Medium, by air preheater 4 heating after, by heat primary air pipeline 5 enter medium-speed pulverizer 6, carry out powder processed.Pass through recycling
Flue gas flow controllable register 17,18, wind flow controllable registers 19 of flue gas recycled flowmeter and First air flowmeter 20 are adjusted
The flow of two parts medium is saved, to meet powder requirement processed.
The coal dust that medium-speed pulverizer 6 exports enters coal powder light-dark separation device 21 via pulverized coal channel 7, is separated into deep or light two
Stock, thick coal culm enter thick coal culm burner 24 via thick coal culm pipeline 22, and thin powdered coal enters thin powdered coal via thin powdered coal pipeline 23
Burner 25, deep or light two strands of coal dusts all enter burner hearth and burn.
The Secondary Air that secondary air fan 9 exports is heated by air preheater 4, by hot secondary air duct 10 simultaneously into
Enter thick coal culm burner 24 and thin powdered coal burner 25, enters back into burner hearth auxiliary combustion.
Dried medium due to entering coal pulverizer is made of air and flue gas recycled two parts, in satisfaction dried bean noodles
Under the premise of dry power output, power output of milling and ventilation power output, primary air ratio can reduce 50% or so, be conducive to tissue furnace internal combustion
It burns.By coal powder light-dark separation device 21, can in furnace inner tissue pulverized coal bias combustion, meet high water content brown coal powder, steady combustion,
After-flame, do not occur boiler furnace seriously stain, slagging and high temperature corrosion, NOxDischarge low requirement.
Claims (5)
1. a kind of combustion system for grinding high water content brown coal using medium-speed pulverizer, including boiler body (1), boiler body (1) burning
The hot fume of generation enters after denitrification apparatus (11) carry out denitration process and enters air preheater (4), out air preheater (4)
Hot fume after heat exchange successively after electric precipitator (12), air-introduced machine (13) and desulfurizer (14), is discharged by chimney (15)
Atmosphere；The Secondary Air of secondary air fan (9) outlet passes through hot secondary air duct behind air preheater (4) and hot fume heat exchange
(10) enter burner, enter back into the burner hearth auxiliary combustion of boiler body (1), which is characterized in that enter Jie of primary air fan (3)
Matter consists of two parts, and a part is air, and another part is the flue gas recycled of electric precipitator (12) output, by recycling
Flue (16) enters primary air fan (3), and the medium of primary air fan (3) outlet passes through after air preheater (4) heating
Heat primary air pipeline (5) enters medium-speed pulverizer (6) and carries out powder processed, and the coal dust of medium-speed pulverizer (6) outlet enters burner.
2. the combustion system of high water content brown coal is ground using medium-speed pulverizer as described in claim 1, which is characterized in that the air
Enter the primary air fan (3) by First air inlet pipeline (2).
3. the combustion system of high water content brown coal is ground using medium-speed pulverizer as claimed in claim 2, which is characterized in that described to follow again
Ring flue (16) is equipped with flue gas recycled flow controllable register (17) and flue gas recycled flowmeter (18)；It is described primary
Wind inlet pipeline (2) is equipped with a wind flow controllable register (19) and First air flowmeter (20)；Pass through flue gas recycled stream
Measure controllable register (17) and flue gas recycled flowmeter (18) and a wind flow controllable register (19) and First air flowmeter
(20) flow for entering two parts medium of the primary air fan (3) is adjusted, to meet powder requirement processed.
4. the combustion system of high water content brown coal is ground using medium-speed pulverizer as described in claim 1, which is characterized in that the burning
Device includes thick coal culm burner (24) and thin powdered coal burner (25)；The coal dust of medium-speed pulverizer (6) outlet is via pulverized coal channel
(7) enter coal powder light-dark separation device (21), coal dust is separated into thick coal culm and thin powdered coal by coal powder light-dark separation device (21), dense
Coal dust enters thick coal culm burner (24) via thick coal culm pipeline (22), and thin powdered coal enters thin powdered coal via thin powdered coal pipeline (23)
Burner (25), the burner hearth that deep or light two strands of coal dusts all enter the boiler body (1) burn.
5. the combustion system of high water content brown coal is ground using medium-speed pulverizer as claimed in claim 4, which is characterized in that described secondary
The Secondary Air of blower (9) outlet is heated by air preheater (4), enters dense coal simultaneously by hot secondary air duct (10)
Powder burner (24) and thin powdered coal burner (25), enter back into the burner hearth auxiliary combustion of the boiler body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338936.8A CN110056865A (en) | 2019-04-25 | 2019-04-25 | A kind of combustion system grinding high water content brown coal using medium-speed pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338936.8A CN110056865A (en) | 2019-04-25 | 2019-04-25 | A kind of combustion system grinding high water content brown coal using medium-speed pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056865A true CN110056865A (en) | 2019-07-26 |
Family
ID=67320712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338936.8A Pending CN110056865A (en) | 2019-04-25 | 2019-04-25 | A kind of combustion system grinding high water content brown coal using medium-speed pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553248A (en) * | 2019-08-26 | 2019-12-10 | 国网天津市电力公司电力科学研究院 | Method for reducing generation of nitrogen oxides of thermal power generating unit |
| CN112082149A (en) * | 2020-09-08 | 2020-12-15 | 东方电气集团东方锅炉股份有限公司 | Flue gas recirculation lignite drying method and drying system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111007A (en) * | 1998-10-09 | 2000-04-18 | Ishikawajima Harima Heavy Ind Co Ltd | Pulverized coal burning boiler |
| CN1587802A (en) * | 2004-08-23 | 2005-03-02 | 国电热工研究院 | Fine coal powder recombustion denitrificating method |
| CN101782237A (en) * | 2010-03-09 | 2010-07-21 | 西安热工研究院有限公司 | Medium-speed coal-mill direct-firing pulverizing combustion system for burning high-moisture lignite |
| CN203223912U (en) * | 2013-04-15 | 2013-10-02 | 黄立新 | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill |
| CN107559817A (en) * | 2017-09-21 | 2018-01-09 | 哈尔滨工业大学 | A kind of swirling pulverized coal combustion device and method using flue gas recirculation |
| CN109268866A (en) * | 2018-09-06 | 2019-01-25 | 无锡戈滤科环境科技有限公司 | A kind of direct-firing pulverized coal combustion system of medium-speed pulverizer suitable for high-moisture coal |
| CN210179607U (en) * | 2019-04-25 | 2020-03-24 | 上海锅炉厂有限公司 | Combustion system for grinding high-moisture lignite by adopting medium-speed mill |
-
2019
- 2019-04-25 CN CN201910338936.8A patent/CN110056865A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000111007A (en) * | 1998-10-09 | 2000-04-18 | Ishikawajima Harima Heavy Ind Co Ltd | Pulverized coal burning boiler |
| CN1587802A (en) * | 2004-08-23 | 2005-03-02 | 国电热工研究院 | Fine coal powder recombustion denitrificating method |
| CN101782237A (en) * | 2010-03-09 | 2010-07-21 | 西安热工研究院有限公司 | Medium-speed coal-mill direct-firing pulverizing combustion system for burning high-moisture lignite |
| CN203223912U (en) * | 2013-04-15 | 2013-10-02 | 黄立新 | Intermediate storage type super nitrogen reduction system for coal-fired boiler coal mill |
| CN107559817A (en) * | 2017-09-21 | 2018-01-09 | 哈尔滨工业大学 | A kind of swirling pulverized coal combustion device and method using flue gas recirculation |
| CN109268866A (en) * | 2018-09-06 | 2019-01-25 | 无锡戈滤科环境科技有限公司 | A kind of direct-firing pulverized coal combustion system of medium-speed pulverizer suitable for high-moisture coal |
| CN210179607U (en) * | 2019-04-25 | 2020-03-24 | 上海锅炉厂有限公司 | Combustion system for grinding high-moisture lignite by adopting medium-speed mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553248A (en) * | 2019-08-26 | 2019-12-10 | 国网天津市电力公司电力科学研究院 | Method for reducing generation of nitrogen oxides of thermal power generating unit |
| CN112082149A (en) * | 2020-09-08 | 2020-12-15 | 东方电气集团东方锅炉股份有限公司 | Flue gas recirculation lignite drying method and drying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102840593B (en) | Fume dried lignite medium speed mill powder-making system | |
| CN105605555B (en) | A kind of steam generator system and its control method for being adapted to strong contamination solid fuel ignition | |
| CN103925605A (en) | High-moisture lignite medium-speed coal mill pulverizing system heating primary air through pulverized coal burning | |
| CN110056865A (en) | A kind of combustion system grinding high water content brown coal using medium-speed pulverizer | |
| JP2012522962A (en) | Reagent drying with excess air preheating | |
| CN201582846U (en) | Combustion control system of lignite unit | |
| CN107420933B (en) | Exhaust-heat primary air heat exchanger system for hot air powder feeding system of ball mill | |
| CN203771439U (en) | High-moisture lignite medium speed mill coal pulverizing system using pulverized coal combustion heating primary air | |
| TWI480493B (en) | Operation method of pulverized coal - fired boiler equipment and equipment for pulverized coal - fired boiler | |
| CN210179607U (en) | Combustion system for grinding high-moisture lignite by adopting medium-speed mill | |
| CN205560818U (en) | Medium speed pulverizer directly blows dry powder process system of two media of formula | |
| 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 | |
| CN104132362A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN208058885U (en) | A kind of multichannel cycle wind and smoke characteristic regulating system | |
| CN104197362A (en) | Fume-dried closed pulverization coal-fired boiler unit with function of exhaust water recovery | |
| CN103438474B (en) | The weary gas of boiler milling system part participates in pulverized coal carried by hot air utilization system | |
| CN207394874U (en) | A kind of sludge cooperates with burning processing system | |
| CN109282289A (en) | A kind of drying and incineration system burning municipal sludge in coal-powder boiler | |
| CN104132364A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| JPH0617741B2 (en) | Control method of primary air temperature at pulverized coal machine outlet for boiler | |
| CN212408719U (en) | System for improving output of medium-speed coal mill by pre-drying furnace smoke | |
| CN103939934A (en) | Drying system for boiler pulverizing system | |
| CN104132361A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN103925606B (en) | Gas-fired adds the high-moisture brown coal medium-speed pulverizer pulverized coal preparation system of heat primary air |
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 |