CN106402848A - Environment-friendly large-capacity high-temperature high-pressure low-dust-content hot air generating system for coal chemical industry - Google Patents
Environment-friendly large-capacity high-temperature high-pressure low-dust-content hot air generating system for coal chemical industry Download PDFInfo
- Publication number
- CN106402848A CN106402848A CN201611099910.5A CN201611099910A CN106402848A CN 106402848 A CN106402848 A CN 106402848A CN 201611099910 A CN201611099910 A CN 201611099910A CN 106402848 A CN106402848 A CN 106402848A
- Authority
- CN
- China
- Prior art keywords
- coal
- hot
- hot blast
- reheater
- hot air
- 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.)
- Granted
Links
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
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
-
- 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
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to an environment-friendly large-capacity high-temperature high-pressure low-dust-content hot air generating system for the coal chemical industry. The environment-friendly large-capacity high-temperature high-pressure low-dust-content hot air generating system comprises a coal feeding system, a circulating fluidized bed hot-blast stove system, an air distributing system, a hot air dust removal system and a hot air reheating system. The system is used for carrying out three-stage efficient cyclone separation on hot air at the temperature ranging from 850 DEG C to 950 DEG C generated by a circulating fluidized bed hot-blast stove before the hot air is fed to a reheating furnace to reheat, so that solid dust particles in hot air are separated out. Hot air at the temperature being ranging from 850 DEG C to 950 DEG C is heated to 1100 DEG C to 1200 DEG C in a regenerating furnace, and is then fed into a follow-up coal dry distillation and coal-pyrolysis device to subject to processes such as dry distillation, pyrolsis and the like. Hot air generated by the system has the advantages of large capacity, a high temperature and low dust content, and can completely meet needs of coal dry distillation and coal pyrolysis; and meanwhile, greenhouse gas emission is reduced through a low-temperature hot air recycling technology to achieve obvious energy-saving environment-friendly effects, so that vitally important effects are achieved on the promoting development of the national coal chemical industry and the clean energy conversion industry.
Description
Technical field
The invention belongs to coal chemical industry clean energy resource conversion field, particularly to a kind of coalification industry environment-friendly type Large Copacity
There is system in High Temperature High Pressure low dust-laden hot blast.
Background technology
Coal is China's mainly disposable energy, and in China's final energy consumption, coal ratio is excessive is to cause severe environments
The main cause of pollution, with the fast development of Chinese national economy, environmental problem is faced with unprecedented challenge.So
And, China was difficult to change in disposable general layout short-term based on coal for the energy, and future source of energy can be more prominent with environmental problem
Go out, the Energy Conversion Technology that development contamination type Fossil fuel changes to clean type oil, gas fuel is very real selection.In coal
In gas processed, coal liquifaction, ammonia from coal and the technique such as coal alkane, alkene, coal dry distilling, pyrolysis are technology of non-the normally off key
Link, the dry distilling of coal and pyrolysis need high temperature, high pressure, the hot blast of low dust-laden, and especially maximization coalification industry can change point
The technology of scattered type miniaturization falls behind relatively, the relatively serious present situation of pollution, more reduce energy consumption reach energy-conservation purpose, can
To concentrate effective process and to control pollution to environment, maximization coalification industry needs jumbo, high temperature, high pressure, low dust-laden
Hot blast.And existing hot blast occurs the air stove of system not only backward in technique, and it is not met by maximization coalification industry
A series of requirements to high temperature, high pressure, Large Copacity, energy-conservation and environmental protection for the technique, therefore, design environment-friendly type, Large Copacity, a height
Temperature, high pressure, low dust-laden, the hot blast of environment-friendly type occur system to become of crucial importance, are directly connected to China's coal chemical industry and energy
The sustainable development problem of source industry, is also relate to China environmental protection problem.
Content of the invention
For the problems referred to above, the present invention proposes a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure and occurs
System, 850 DEG C ~ 950 DEG C hot blasts that circulating fluidized bed combustion coal hot-air stove produces are sent to reheater reheating and advance by this system
Row stage high-effective cyclonic separation, the solid grit in 850 DEG C ~ 950 DEG C hot blasts is separated, reaches low dust-laden cleaner
High-temperature hot-air is to meet the service requirement of follow-up equipment.850 DEG C ~ 950 DEG C of hot blast is brought up to by reheater and meets technique
The high temperature that requires, high pressure, send into the follow-up dry distillation of coal after 1100 DEG C ~ 1200 DEG C of low dust-laden, coal carried out in pyrolysis of coal device
The production process of the coalifications such as dry distilling, pyrolysis industry.This system adopts the Combustion technology of circulating fluidized of low nitrogen burning, passes through
Low-temperature flue gas recirculation can reduce NOx, reduces NOx generation amount, by spraying ammonia measure with further in recirculating fluidized bed flue gas
Reduction NOx, reduces NOx generation amount, realizes taking off in stove by spraying into pulverized limestone and a coal-fired combust in recirculating fluidized bed
Sulfur, excludes taking a step forward of air in flue gas and comes denitration and alkaline aqueous solution using low temperature catalyst plus spray ammonia and wash flue gas
The technical matters of wet desulphurization are equipped and to be realized the optimum efficiency of the near-zero release guaranteeing atmosphere pollution it is ensured that environmental protection reaches
Mark.
For realizing object above, employ the following technical solutions：Environment-friendly type Large Copacity High Temperature High Pressure is low contains for a kind of coalification industry
Dirt hot blast occurs system to include coal supply system, circulating fluid bed hot-air furnace system, blowing system, hot blast dust pelletizing system and hot blast again
Hot systems.Wherein coal supply system includes the vertical coaling machine of bucket type, bunker coal warehouse, screw(-type) feeder；Circulating fluid bed hot-air furnace
System includes recirculating fluidized bed hot-air stove, cylinder slag remover, refeed line, material returning device；It is combustion-supporting that blowing system includes reheater
Blower fan, recirculation blower, feeding fan, loose metal blower fan, primary air fan and overfire air fan；Hot blast dust pelletizing system includes one, two, three
Level cyclone separator；Hot blast reheat system includes hot blast reheater.The vertical coaling machine of bucket type, bunker coal warehouse and screw(-type) feeder
It is sequentially connected, screw(-type) feeder is connected to recirculating fluidized bed hot-air stove by coal-fired feed pipe, and recirculating fluidized bed hot blast is sent out
Raw outlet of still connects primary cyclone by first order hot-flow flue, recirculating fluidized bed hot-air stove connect primary air fan,
Overfire air fan；Primary cyclone, secondary cyclone, three-stage cyclone separator pass sequentially through second level hot-flow flue even
Connect, third level hot-flow flue connects, three-stage cyclone separator is connected with hot blast reheater, and hot blast reheater is connected to the dry distillation of coal, coal
Pyrolysis and waste heat boiler device system.The dry distillation of coal, pyrolysis of coal and waste heat boiler device system connect recirculation blower I, recirculation
Blower fan I is connected in parallel many flue gas reheat arms by flue gas recirculation main, and the flue gas reheat arm of a portion connects
To the burner hearth of recirculating fluidized bed hot-air stove, the flue gas reheat arm of another part is connected to coal-fired feed pipe.
Described primary cyclone bottom connects material returning device, and recirculating fluidized bed hot-air stove is connected by refeed line
To material returning device, material returning device connection feeding fan and loose metal blower fan.
The flue gas medium of the described dry distillation of coal, pyrolysis of coal and waste heat boiler device system is connected to by recirculation blower II
The reheater low temperature reduced air entrance of hot blast reheater.
Described hot blast reheater adopts cyclone type structure, and the reheater hot blast mixing interior of hot blast reheater is disposed with storage
Heat intensified firing flower pore wall, many reheating burners also installed by hot blast reheater, and many reheating burners are according to hot blast again
Hot stove section 45° angle is evenly arranged, and simultaneously according to axial arranged multiple row, hot blast reheater is also connected with reheater combustion fan.
Water-cooled cylinder slag remover is installed in described recirculating fluidized bed hot-air stove bottom.
Further, on coal-fired feed pipe, arrangement sprays to the little airduct of many of burner hearth direction feeding.
Further, denitration spray ammonia mouth is provided with first order hot-flow flue.
This generation system process explanation：Bunker coal first passes through the vertical coaling machine of bucket type and is transported to recirculating fluidized bed hot blast to be sent out
The bunker coal warehouse of raw stove, is then sent into coal in recirculating fluidized bed hot-air stove by screw(-type) feeder and burns；Primary air fan
There is provided fluidized wind for recirculating fluidized bed hot-air stove, this fluidized wind is also the combustion air needed for coal combustion, overfire air fan is coal
Burning completely sufficient oxygen is provided；850 DEG C ~ 950 DEG C about of ignition temperature in recirculating fluidized bed hot-air stove, its temperature
Degree is controlled by adjusting the recirculating air volume of fuel quantity and recirculation blower I；The stove that primary cyclone separates
Ash enters material returning device, give, loose metal blower fan provide for material returning device give, loose metal wind, the height in the material returning device sending, under loose metal wind action
Warm ashes are turned again in recirculating fluidized bed hot-air stove by refeed line, and igniting as carrier regenerator and burning newly enters stove
Fuel, the control of fluidized bed material layer height is controlled by scum pipe, the high temperature furnace slag warp burning on the fluid bed bed of material
Scum pipe flows into water-cooled cylinder slag remover it is ensured that the height and position of the bed of material, and water cooled formula billows after the cooling of cylinder slag remover
Ash discharge is to outside stove；Recirculating fluidized bed hot-air stove produce 850 DEG C ~ 950 DEG C hot blasts through primary cyclone, two grades
It has been low dust-laden that cyclone separator separates the hot blast after dedusting with three-stage cyclone separator, and especially three-stage cyclone separator is
Using multiple with the internal center insert improving separation efficiency, higher efficiency carries out high efficiency separation to dust-laden in hot blast.Low contain
850 DEG C of dirt ~ 950 DEG C of high-temperature hot-airs enter hot blast reheater and continue heating；Hot blast reheater using clean gaseous fuel or
The raw coke oven gas producing in person's production process, firing up is rapid, and hot blast reheater combustion fan provides oxygen for burning, and hot blast is again
850 DEG C ~ 950 DEG C hot blasts that hot stove produces to recirculating fluidized bed hot-air stove are heated, in the hot blast at reheater rear portion again
The indoor low-temperature flue gas with the rotation being introduced by recirculation blower II of mixing are sufficiently mixed, to realize being reheated to 1100 DEG C
~ 1200 DEG C or higher temperature, the temperature of hot blast reheating outlet of still hot blast is passed through to adjust reheater gas quantity and recirculation blower II
Recirculating air volume be controlled；Final the system output meets 1100 DEG C ~ 1200 DEG C of coalification industrial technology needs or higher
The hot blast of temperature is used for coal carbonization and pyrolysis.
Beneficial effect of the present invention：Can be produced by the system meet Large Copacity required for coalification industrial technology, high-temperature,
High pressure, the hot blast of low dust-laden require, and to adapt to the technical process needs of the efficient dry distillation of coal and pyrolysis of coal, the system is adopted simultaneously
Not only reduce energy consumption with low temperature hot blast recirculating technique, but also the effective control growing amount of NOx, decrease greenhouse
Gas discharges, and serves obvious energy-saving and environmental protection effect, not only the clean energy resource conversion promoting China's coalification industry is provided
Solid technical guarantee, and to the sustainable development promoting China's coalification industry, there is extremely important effect.
Brief description
Fig. 1 is the structural representation of the present invention;
Fig. 2 is accumulation of heat overheavy firing flower pore wall and the reheater burner arrangement schematic diagram of the present invention；
As shown in the figure：1st, the vertical coaling machine of bucket type；2nd, bunker coal warehouse；3rd, screw(-type) feeder；4th, recirculating fluidized bed hot blast occurs
Stove；5th, water-cooled cylinder slag remover；6th, refeed line；7th, material returning device；8th, primary cyclone；9th, primary cyclone center
Cylinder；10th, expansion joint；11st, denitration spray ammonia mouth；12nd, first order hot air duct；13rd, second level hot air duct；14th, two grades of whirlwind divide
From device；15th, secondary cyclone central tube；16th, third level hot air duct；17th, three-stage cyclone separator；18th, three-level whirlwind
Separator center insert；19th, hot blast reheater；20th, reheating burner；21st, reheater low temperature reduced air entrance；22nd, store
Heat intensified firing flower pore wall；23rd, reheater hot blast mixing chamber；24th, reheater combustion fan；25th, recirculation blower I；26th, follow again
Ring blower fan II；27th, loose metal blower fan；28th, overfire air fan；29th, primary air fan；30th, coal-fired material inlet；31st, coal-fired feed pipe；32、
The little airduct of feeding；33rd, the dry distillation of coal, pyrolysis of coal and waste heat boiler device system；34th, flue gas desulfurization and denitrification processing system；35th, flue gas
Recirculation main；36th, flue gas reheat arm；37th, feeding fan.
Specific embodiment
Embodiment
Further illustrate below in conjunction with the accompanying drawings, the vertical coaling machine of bucket type（1）, bunker coal warehouse（2）And screw(-type) feeder（3）
It is sequentially connected, screw(-type) feeder（3）By coal-fired feed pipe（31）It is connected to recirculating fluidized bed hot-air stove（4）Fire coal give
Material mouth（30）.In order to prevent air stove fire coal material inlet（30）Position feed has some setbacks or is burnt, in coal-fired feed pipe（31）
Upper arrangement sprays to the little airduct of many of burner hearth direction feeding（32）, high-temperature hot-air is to take energy medium, through the dry distillation of coal, pyrolysis of coal equipment
Afterwards, temperature step-down, extracts low temperature part out, and a part is sent directly into burner hearth, and another wind, as coal spread wind, relies on this wind-power to incite somebody to action
Coal is blown into burner hearth, reaches purpose and the technique needs of energy-conservation.
Recirculating fluidized bed hot-air stove（4）By first order hot-flow flue（12）Connect primary cyclone（8）, circulation
Fluid bed hot-air stove（4）Connect primary air fan（29）, overfire air fan（28）.Recirculating fluidized bed hot-air stove（4）Bottom
Water-cooled cylinder slag remover is installed（5）.
Primary cyclone（8）, secondary cyclone（14）, three-stage cyclone separator（17）Pass sequentially through the second level
Hot-flow flue（13）, third level hot-flow flue（16）Connect, in second level hot-flow flue（13）, third level hot-flow flue（16）On be arranged with
Expansion joint（10）, three-stage cyclone separator（17）With hot blast reheater（19）Connect, hot blast reheater（19）Be connected to the dry distillation of coal,
Pyrolysis of coal and waste heat boiler device system（33）, the dry distillation of coal, pyrolysis of coal and waste heat boiler device system（33）Outlet is connected in parallel
Recirculation blower I（25）, recirculation blower II（26）With flue gas desulfurization and denitrification processing system（34）.Recirculation blower I（25）One
End and flue gas recirculation main（35）Connect, flue gas recirculation main（35）Many flue gas reheat arms in parallel（36）, part cigarette
Gas hot leg pipe again（36）It is connected to recirculating fluidized bed hot-air stove（4）Burner hearth, partial fume hot leg pipe again（36）With many
The little airduct (32) of feeding in parallel connects, the many little airduct of feedings (32) in parallel and coal-fired feed pipe（31）Connect.
In primary cyclone（8）Import hot-flow flue is provided with denitration spray ammonia mouth（11）, in hot blast reheater（19）'s
Reheater hot blast mixing chamber（23）Inside it is provided with accumulation of heat overheavy firing flower pore wall（22）.Primary cyclone（8）Bottom connects
Material returning device（7）, recirculating fluidized bed hot-air stove（4）By refeed line（6）It is connected to material returning device（7）, material returning device（7）Connection is sent
Material blower fan（37）With loose metal blower fan（27）.The dry distillation of coal, pyrolysis of coal and waste heat boiler device system（33）By recirculation blower II
（26）Connect back to hot blast reheater（19）Reheater low temperature reduced air entrance（21）.Hot blast reheater（19）Reheater combustion
Burner（20）Connect reheater combustion fan（24）.
Bunker coal first passes through the vertical coaling machine of bucket type（1）It is transported to recirculating fluidized bed hot-air stove（4）Bunker coal
Warehouse（2）, then by screw(-type) feeder（3）Coal is passed through coal-fired feed pipe（31）Send into recirculating fluidized bed hot-air stove（4）
Coal-fired material inlet（30）Enter recirculating fluidized bed hot-air stove（4）Interior.
Described circulating fluid bed hot-air furnace system includes recirculating fluidized bed hot-air stove（4）, water-cooled cylinder slagging-off
Machine（5）, refeed line（6）, material returning device（7）, primary cyclone（8）, coal-fired feed pipe（31）, the little airduct of feeding（32）, cigarette
Gas hot leg pipe again（36）, bunker coal is in recirculating fluidized bed hot-air stove（4）Fluidization suspension combustion, the high-temperature hot-air of generation is first
It is introduced into primary cyclone（8）Carry out separating, the ash separating is by primary cyclone（8）Enter material returning device
（7）, pass through refeed line under feeding wind, loose metal wind action（6）It is again introduced into recirculating fluidized bed hot-air stove（4）Interior, combustion
The lime-ash of cinder flows into water-cooled cylinder slag remover through scum pipe（5）It is discharged to outside stove, finally water cooled formula cylinder slag remover（5）Cooling
After deliver to grey field.
Primary air fan（29）For recirculating fluidized bed hot-air stove（4）Fluidized wind is provided（Also referred to as First air）, this fluidisation
Wind is simultaneously as the main combustion wind of coal, overfire air fan（28）The delivery of supplemental oxygen of burning completely for coal provides secondary wind, feeding fan（37）、
Loose metal blower fan（27）For material returning device（7）Offer is sent, loose metal wind, helps material returning device（7）Interior dipleg dust stratification carry out loose and be into
Enter refeed line（6）In ash smoothly return recirculating fluidized bed hot-air stove（4）Interior offer power, recirculation blower I（25）For
Recirculating fluidized bed hot-air stove（4）The low temperature recirculation hot blast needing reheating is provided, sends out for adjusting recirculating fluidized bed hot blast
Raw stove（4）Interior ignition temperature and the growing amount reducing NOx；Reheater combustion fan（24）For hot blast reheater（19）Burning
Combustion air, recirculation blower II are provided（26）For hot blast reheater（19）The low temperature recirculation hot blast needing reheating is provided, is used for
Adjust hot blast reheater（16）The temperature of outlet hot blast, reduce the growing amount of NOx and reduce the low temperature needing reheating because of heating again
Energy consumption required for circulating air.
Recirculating fluidized bed hot-air stove（4）850 DEG C ~ 950 DEG C hot blasts producing initially enter primary cyclone（8）
Carry out gas solid separation, the solid ash separating is by primary cyclone（8）Enter material returning device（7）, sending, loose metal wind
Effect is lower to pass through refeed line（6）It is again introduced into recirculating fluidized bed hot-air stove（4）Interior, the lime-ash burning flows into water through scum pipe
Cold type cylinder slag remover（5）It is discharged to outside stove, water cooled formula cylinder slag remover（5）Deliver to grey field after cooling, separated after hot blast
Through primary cyclone central tube（9）Draw and enter secondary cyclone（14）Proceed gas solid separation, under separating
Solid ash is through secondary cyclone（14）The ash-removing mouth of bottom is discharged and is delivered to grey field, and hot blast is through secondary cyclone central tube
（15）Draw the three-stage cyclone separator entering back into multiple installings in parallel（14）, the three-stage cyclone separator of multiple installings in parallel
（14）Formed with the internal center insert improving separation efficiency by using multiple, higher efficiency carries out height to dust-laden in hot blast
Effect separates.Three-stage cyclone separator（14）Carry out last gas solid separation, the solid ash under separating is through three-stage cyclone separator
（14）The ash-removing mouth of bottom is discharged and is delivered to grey field, and hot blast is through three-stage cyclone separator center insert（18）Draw and enter hot blast reheating
Stove（19）Further heat temperature raising afterwards.Recirculating fluidized bed hot-air stove（4）850 DEG C ~ 950 DEG C hot blasts producing are through three-level whirlwind
Separator enters hot blast reheater after separating（19）, reheating burner（20）Burn gas fuel, by reheater combustion fan
（24）There is provided burning required air, burn the high-temperature hot-air producing and recirculating fluidized bed hot-air stove（4）850 DEG C producing
~ 950 DEG C of hot blasts are in reheater hot blast mixing chamber（23）Interior mixing, by adjusting hot blast reheater（19）Amount of consumed gas and again
Circulating fan II（26）Recirculation low temperature hot blast rate controlling the temperature of hot blast to be finally reached 1100 DEG C ~ 1200 DEG C or more
Height, to meet production needs.
Claims (7)
1. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure, and the main bucket type that includes vertically goes up coal
Machine（1）, bunker coal warehouse（2）, screw(-type) feeder（3）, recirculating fluidized bed hot-air stove（4）, primary cyclone（8）、
Secondary cyclone（14）, three-stage cyclone separator（17）, hot blast reheater（19）, recirculation blower I（25）, overfire air fan
（28）And primary air fan（29）It is characterised in that the vertical coaling machine of bucket type（1）, bunker coal warehouse（2）And screw(-type) feeder（3）
It is sequentially connected, screw(-type) feeder（3）By coal-fired feed pipe（31）It is connected to recirculating fluidized bed hot-air stove（4）, recycle stream
Change bed hot-air stove（4）Outlet pass through first order hot-flow flue（12）Connect primary cyclone（8）, recirculating fluidized bed heat
Wind producer（4）Connect primary air fan（29）, overfire air fan（28）；Primary cyclone（8）, secondary cyclone
（14）, three-stage cyclone separator（17）Pass sequentially through second level hot-flow flue（13）Connection, third level hot-flow flue（16）Connect, three-level
Cyclone separator（17）With hot blast reheater（19）Connect, hot blast reheater（19）It is connected to the dry distillation of coal, pyrolysis of coal and waste heat pot
Furnace apparatus system（33）, the dry distillation of coal, pyrolysis of coal and waste heat boiler device system（33）Connect recirculation blower I（25）, recirculation
Blower fan I（25）By flue gas recirculation main（35）It is connected in parallel many flue gas reheat arms（36）, the flue gas of a portion
Hot leg pipe again（36）It is connected to recirculating fluidized bed hot-air stove（4）Burner hearth, the flue gas reheat arm of another part（36）Even
It is connected to coal-fired feed pipe（31）.
2. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 1,
It is characterized in that, described primary cyclone（8）Bottom connects material returning device（7）, recirculating fluidized bed hot-air stove（4）Logical
Cross refeed line（6）It is connected to material returning device（7）, material returning device（7）Connect feeding fan（37）With loose metal blower fan（27）.
3. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 1,
It is characterized in that, the described dry distillation of coal, pyrolysis of coal and waste heat boiler device system（33）Flue gas medium pass through recirculation blower
Ⅱ（26）It is connected to hot blast reheater（19）Reheater low temperature reduced air entrance（21）.
4. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 1,
It is characterized in that, described hot blast reheater（19）Using cyclone type structure, hot blast reheater（19）Reheater hot blast mixing
Room（23）Inside it is disposed with accumulation of heat overheavy firing flower pore wall（38）, hot blast reheater（19）Many reheating burners are also installed
（20）, many reheating burners（20）It is evenly arranged according to hot blast reheater section 45° angle, simultaneously according to axial arranged many
Row, hot blast reheater（19）It is also connected with reheater combustion fan（24）.
5. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 1,
It is characterized in that, described recirculating fluidized bed hot-air stove（4）Water-cooled cylinder slag remover is installed in bottom（5）.
6. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 5,
It is characterized in that, in coal-fired feed pipe（31）Upper arrangement sprays to the little airduct of many of burner hearth direction feeding（32）.
7. there is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity High Temperature High Pressure according to claim 6,
It is characterized in that, in first order hot-flow flue（12）It is provided with denitration spray ammonia mouth（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099910.5A CN106402848B (en) | 2016-12-05 | 2016-12-05 | A kind of low dust-laden hot wind generating system of coalification industry environment-friendly type large capacity high temperature and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099910.5A CN106402848B (en) | 2016-12-05 | 2016-12-05 | A kind of low dust-laden hot wind generating system of coalification industry environment-friendly type large capacity high temperature and pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106402848A true CN106402848A (en) | 2017-02-15 |
| CN106402848B CN106402848B (en) | 2018-08-14 |
Family
ID=58083930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611099910.5A Active CN106402848B (en) | 2016-12-05 | 2016-12-05 | A kind of low dust-laden hot wind generating system of coalification industry environment-friendly type large capacity high temperature and pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402848B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007255825A (en) * | 2006-03-24 | 2007-10-04 | Ngk Insulators Ltd | Circulation fluidized bed furnace |
| CN102628590A (en) * | 2012-03-20 | 2012-08-08 | 广东电网公司电力科学研究院 | Biomass circulating fluidized bed direct combustion apparatus |
| WO2013140332A1 (en) * | 2012-03-20 | 2013-09-26 | Alstom Technology Ltd | Circulating fluidized bed boiler |
| KR20140104681A (en) * | 2013-02-21 | 2014-08-29 | 현대중공업 주식회사 | Circulating Fluidized Bed Boiler |
| CN204329002U (en) * | 2014-12-23 | 2015-05-13 | 哈尔滨锅炉厂有限责任公司 | The double reheat device of CFBB |
| CN205535721U (en) * | 2016-04-12 | 2016-08-31 | 东方电气集团东方锅炉股份有限公司 | Overcritical CFB boiler thermodynamic system and boiler of ultralow calorific value burn |
| CN206222299U (en) * | 2016-12-05 | 2017-06-06 | 大连科林能源工程技术开发有限公司 | There is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity HTHP |
-
2016
- 2016-12-05 CN CN201611099910.5A patent/CN106402848B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007255825A (en) * | 2006-03-24 | 2007-10-04 | Ngk Insulators Ltd | Circulation fluidized bed furnace |
| CN102628590A (en) * | 2012-03-20 | 2012-08-08 | 广东电网公司电力科学研究院 | Biomass circulating fluidized bed direct combustion apparatus |
| WO2013140332A1 (en) * | 2012-03-20 | 2013-09-26 | Alstom Technology Ltd | Circulating fluidized bed boiler |
| KR20140104681A (en) * | 2013-02-21 | 2014-08-29 | 현대중공업 주식회사 | Circulating Fluidized Bed Boiler |
| CN204329002U (en) * | 2014-12-23 | 2015-05-13 | 哈尔滨锅炉厂有限责任公司 | The double reheat device of CFBB |
| CN205535721U (en) * | 2016-04-12 | 2016-08-31 | 东方电气集团东方锅炉股份有限公司 | Overcritical CFB boiler thermodynamic system and boiler of ultralow calorific value burn |
| CN206222299U (en) * | 2016-12-05 | 2017-06-06 | 大连科林能源工程技术开发有限公司 | There is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity HTHP |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106402848B (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100441946C (en) | Boiler system of circulating fluid bed burning in oxygen enrichment | |
| CN100582197C (en) | Circulating fluidized bed heat-power-gas-tar multi-joint-production apparatus and method | |
| CN105062528B (en) | A kind of pyrolysis of coal multi-production process and its device suitable for coal-powder boiler | |
| CN101761920A (en) | Method and device for burning low NOx by utilizing reburning of pulverized coal pyrolysis gas | |
| CN102537975A (en) | Circulating fluidized bed garbage incineration boiler and pollution control system with same | |
| CN102200275A (en) | Combustion device for dewatering upgradation of lignite and reduction of nitrogen oxide emission and method thereof | |
| CN108518666A (en) | It is a kind of surely to fire system and method by the pulverized-coal fired boiler of fuel of coal | |
| CN103884013B (en) | Manifold type environment-friendly type fluidized-bed combustion boiler combustion method and device | |
| CN207122904U (en) | A kind of waste incinerator of low nitrogen burning | |
| CN200975664Y (en) | Oxygen-enriched combustion circulating fluid bed boiler system | |
| CN206222299U (en) | There is system in a kind of coalification industry low dust-laden hot blast of environment-friendly type Large Copacity HTHP | |
| CN100498069C (en) | Circulating fluid bed boiler for mixing, burning and blowing air | |
| CN102944008A (en) | Boiler heating surface contamination preventing system of double-fluidized-bed combustion furnace | |
| CN105805730A (en) | Circulating fluidized bed boiler system for achieving low nitrogen oxide discharge | |
| CN111981473A (en) | Slag burnout system and method of biomass boiler | |
| CN204063013U (en) | A kind of CFBB with TRT | |
| CN110486717A (en) | It is a kind of to mix the CFB boiler system for burning waste gas and waste liquid | |
| CN106402848B (en) | A kind of low dust-laden hot wind generating system of coalification industry environment-friendly type large capacity high temperature and pressure | |
| CN104990072A (en) | Efficient and low NOx emission fluidized bed boiler | |
| CN201066118Y (en) | Circulated fluid bed boiler combusting doped blowing air | |
| CN109058983A (en) | Recirculating fluidized bed combustion with meagre oxygen catalysis oxidation fractional combustion boiler system and method | |
| CN211921416U (en) | System for preparing active coke powder in thermal power plant | |
| CN210979818U (en) | Coal fired boiler tertiary air processing system | |
| CN102889585A (en) | Environment-friendly energy-saving vertical boiling boiler | |
| CN204063011U (en) | A kind of fluidized bed semicoke thermal vector system preventing boiler from staiing |
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 |