CN104848213A - Recirculating fluidized bed oxygen-enriched combustion apparatus and operation method thereof - Google Patents
Recirculating fluidized bed oxygen-enriched combustion apparatus and operation method thereof Download PDFInfo
- Publication number
- CN104848213A CN104848213A CN201510228263.2A CN201510228263A CN104848213A CN 104848213 A CN104848213 A CN 104848213A CN 201510228263 A CN201510228263 A CN 201510228263A CN 104848213 A CN104848213 A CN 104848213A
- Authority
- CN
- China
- Prior art keywords
- air
- oxygen
- flue gas
- fluidized bed
- recirculating fluidized
- 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
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- 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
-
- 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
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
-
- 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)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a recirculating fluidized bed oxygen-enriched combustion apparatus, which comprises an air compartment, an air distribution device arranged above the air compartment and a hearth arranged above the air distribution device; the upper part of the hearth is connected with a high-temperature cyclone separator; the upper part of the high-temperature cyclone separator is connected with a heating surface; the lower part of the heating surface is connected with an economizer. The invention further discloses an operation method of the recirculating fluidized bed oxygen-enriched combustion apparatus. The recirculating fluidized bed oxygen-enriched combustion apparatus and the operation method thereof, disclosed by the invention, overcome the defects in the prior art, and intermediate temperature flue gas is used as primary air and secondary air which respectively enter the hearth to serve as recirculating air, in addition, oxygen is injected into the primary air and the secondary air, and the oxygen injection amount can be adjusted, meanwhile, an oxidizing agent is provided for combustion in the hearth, the concentration of CO2 discharged from a boiler of a recirculating fluidized bed can be enriched to more than 80%, and the capture of the CO2 in the flue gas after combustion of coal is facilitated.
Description
Technical field
The present invention relates to a kind of recirculating fluidized bed oxygen-enriched burning device and operation method thereof, belong to the technical field of boiler manfacturing and energy-saving environment protection engineering.
Background technology
Carbon dioxide is generally considered one of major reason causing global warming because having greenhouse effects, and the utilization of fossil energy is most important CO in air
2source, if Global Emissions of Greenhouse Gas amount is pressed industry statistic, power industry is maximum emission source.And coal fired power generation is CO in power industry
2the main source of discharge, global power industry coal fired power generation accounts for 40%.There is a large amount of fossil fired power plants in the whole world in operation, and this just needs to find a kind of CO for fossil fuel power
2reduce discharging solution.Therefore, international community has carried out broad co-operation to Against Global Climate Changes on United Nations Framework Convention on Climate Change basis.Contracting party sets in the Kyoto Protocol of signing in 1997 target that major industrialized country reduces greenhouse gas emission.Reduce CO
2from then on discharge has become the target that global reply climate change is made joint efforts.
Oxygen-enriched combusting is in existing station boiler system-based, and oxygen-enriched combustion system replaces air as the oxide isolation of combustion of fossil fuel with pure oxygen or oxygen enrichment, and combustion product is CO mainly
2and steam, also have unnecessary oxygen in addition to ensure that burning is complete, and in fuel, the oxidation product of repertoire, fuel or leakage enter the inert fraction etc. in the air of system.After supercooled water steam-condensation, CO in flue gas
2content is between 80% ~ 98%.The CO of such high concentration
2carry out utilizing or storing after overcompression, drying and further purification, thus to realize CO after less cost condensation compression
2forever seal up for safekeeping or recycling, comparatively easily realize large-scale CO
2enrichment and reduction of discharging, and in technology, there is good connection due to this new combustion mode and existing power station combustion system, also easily accepted by power industry.
There is CO in existing oxygen-enriched burning device
2the problems such as a large amount of discharges, cause CO
2the problem that capture rate is low, meanwhile, after a large amount of flue gas directly discharges, causes the waste of resource.
Summary of the invention
The object of the present invention is to provide a kind of recirculating fluidized bed oxygen-enriched burning device and operation method thereof, the deficiency that prior art exists can be improved, in employing, warm flue gas is as First air and Secondary Air, enter burner hearth respectively as reduced air, and respectively oxygen is noted to First air and Secondary Air, realize the adjustment of note oxygen amount, simultaneously for hearth combustion provides oxidant, the CO that CFBB is discharged can be made
2concentration enrichment, to more than 80%, to be beneficial to after coal combustion CO in flue gas
2trapping.
The present invention is achieved through the following technical solutions:
Recirculating fluidized bed oxygen-enriched burning device, comprise air compartment, the burner hearth being arranged on the air-distribution device above air compartment and being arranged on above air-distribution device, high temperature cyclone separator is connected with in described upper furnace, heating surface is connected with on described high temperature cyclone separator top, economizer is connected with in described heating surface bottom, described high temperature cyclone separator lower end is connected with air-distribution device by material returning device, described economizer bottom is connected with middle temperature cyclone separator, described middle temperature cyclone separator is connected with air compartment with First air oxygen injector by a gas recirculating fan successively, and described middle temperature cyclone separator bottom is connected with air-distribution device with Secondary Air oxygen injector by secondary flue gas recirculation blower successively, smoke-gas preheater is passed through successively in described economizer bottom, deduster is connected with air-introduced machine, described air-introduced machine is away from smoke-gas preheater one end and CO
2compression purification devices is connected, and described air-distribution device is provided with and broadcasts coal pipe.
Make bed material even fluidizing by air-distribution device, prevent bulky grain bed material from depositing, avoid slagging scorification and leak slag, through in warm cyclone separator and gas recirculating fan, in being extracted by gas recirculating fan, warm and humid flue gas carries out flue gas recirculation, in warm and humid flue gas contain a large amount of steam, wet flue gas enters burner hearth, a large amount of steam is brought in stove, is equivalent to be humidified in stove, improve desulfuration efficiency.The flue gas exported by middle temperature cyclone separator is input to burner hearth, as First air after injecting oxygen through a gas recirculating fan and by First air oxygen injector; The flue gas exported by middle temperature cyclone separator through the supercharging of secondary flue gas recirculation blower, and is input to burner hearth as Secondary Air after injecting oxygen by Secondary Air oxygen injector.Because First air and Secondary Air inject oxygen respectively, note oxygen ratio therefore can be adjusted as required.The unnecessary flue gas removing oxysulfide in stove directly can deliver to CO
2compression purification devices carries out compression purifying, as the raw material of industry or seal up for safekeeping, also can directly through chimney discharged to air.
Owing to recycling as First air and Secondary Air after flue gas note oxygen warm in employing, for hearth combustion provides oxidant, the CO that CFBB is discharged can be made
2concentration enrichment, to more than 80%, to be beneficial to after coal combustion CO in flue gas
2trapping; And warm and humid flue gas participates in process recycling in passing through, wet flue gas enters burner hearth, can a large amount of steam be brought in stove, be equivalent to be humidified in stove, desulfuration efficiency can be improved, thus afterbody does not need to arrange the emission request that special desulfurizer can meet oxysulfide, can reduce the scale of afterbody equipment, reduce costs.
Further, to better implement the present invention, described air-introduced machine is connected with cigarette cooler away from smoke-gas preheater one end, and described cigarette cooler is connected with smoke-gas preheater by cold flue gas recirculation blower away from air-introduced machine one end, described smoke-gas preheater with broadcast coal pipe and be connected.For moisture as received coal content higher than the coal of more than 10%, need to process, therefore adopt dry and cold flue gas after the process of cigarette cooler condensation dehydration, and using dry and cold flue gas after the supercharging of cold flue gas recirculation blower as coal spread wind.Adopt cigarette cooler to realize condensation dehydration process, oxygen-enriched combusting flue gas recirculation process sulphur oxide can be avoided, enrichment appears in steam, cause flue gas recycled pipeline and the problem such as heated surface corrosion and the dry difficulty of transportation of pulverized coal preparation system.
Further, to better implement the present invention, described cold flue gas recirculation blower is away from CO
2compression purification devices one end is connected with roots blower, described roots blower respectively with material returning device, broadcast coal pipe and be connected.For moisture as received coal content higher than more than 10% coal, in order to prevent coal dust to be scattered, the present invention arrange roots blower pressurized treatment is carried out to the cold flue gas after the process of cigarette cooler condensation dehydration after as broadcasting coal sealing air.
Further, to better implement the present invention, the delivery outlet of described secondary flue gas recirculation blower is connected with described coal pipe of broadcasting.For moisture as received coal content not higher than 10% coal, can adopt in the present invention secondary flue gas recirculation blower export, note oxygen before middle temperature flue gas as coal spread wind.
Further, to better implement the present invention, the delivery outlet of a described gas recirculating fan is connected with the described entrance broadcasting coal pipe.For moisture as received coal content not higher than 10% coal, adopt middle temperature flue gas before the outlet of gas recirculating fan, note oxygen as broadcasting coal sealing air in the present invention, for preventing coal dust anti-channeling.
Further, to better implement the present invention, between described economizer and smoke-gas preheater, gas baffle is provided with.In order to adjust the amount of the flue gas entered in smoke-gas preheater, the resistance in adjustment flue, the present invention adjusts thermal discharge in flue by arranging gas baffle, and the thermal discharge of adjustment gas baffle both sides realizes the effect regulating steam temperature.
Further, to better implement the present invention, described air-distribution device is provided with lime stone and adds mouth.The mode desulfurization adding lime stone in stove can be adopted, and by the high temperature cyclone separator that is arranged in furnace outlet by separating containing a large amount of unreacted lime stone or lime of carrying out through flue gas, and send burner hearth continuation participation desulfurization back to by feeding back device and material returning device, improve the utilization rate of lime stone and improve desulfuration efficiency.Adopt lime stone, the oxysulfide SOx in flue gas can be removed, prevent the oxysulfide in flue gas from occurring the problem of enrichment with flue gas recirculation, control at circulating flue gas and discharge sulfureous in flue gas oxide concentration in suitable scope, preventing flue and heating surface acid corrosion.
Further, to better implement the present invention, described lime stone add mouth be positioned at described in broadcast on coal pipe and/or be positioned on the feed back leg of described material returning device.The position that lime stone adds mouth can be arranged according to boiler capacity, for heavy duty boiler, for improving desulfuration efficiency, ensure that lime stone is as far as possible evenly spread out in stove, lime stone add mouth can be arranged in broadcast coal pipe coal feeding hole on or material returning device feed back leg on, also can be arranged on the feed back leg of coal feeding hole or material returning device simultaneously.
Further, to better implement the present invention, between described smoke-gas preheater and deduster, low-level (stack-gas) economizer is provided with.
Further, to better implement the present invention, in air compartment or air channel, bottom ignition device is provided with.
The present invention discloses a kind of operation method of recirculating fluidized bed oxygen-enriched burning device, described middle temperature cyclone separator separating flue accounts for high temperature cyclone separator and exports 65% ~ 80% of flue gas as flue gas recycled and respectively as First air and Secondary Air.
Further, to better implement the present invention, high temperature cyclone separator exports 20% ~ 35% of flue gas successively after preheater, deduster, air-introduced machine, extracts about 15%-30% through the process of cigarette cooler condensation dehydration, as material returning device wind and broadcast coal wind, all the other flue gases deliver to CO
2compression purification devices compresses or enters air by chimney.
Further, to better implement the present invention, described First air oxygen injector injects the oxygen of the 40%-60% needed for burning, and described Secondary Air oxygen injector injects the oxygen of the required 60%-40% of burning.
The present invention compared with prior art, has following beneficial effect:
(1) the present invention recycles after warm flue gas note oxygen in adopting, and as bed material fluidizing agent and combustion oxidant, effectively controls CO in boiler exhaust gas
2concentration enrichment, to more than 80%, to be beneficial to after coal combustion CO in flue gas
2trapping;
(2) the present invention adopts the desulfurization of stove sodalime stone, by warm and humid flue gas recirculation, wet flue gas enters burner hearth, a large amount of steam is brought in stove, be equivalent to be humidified in stove, improve desulfuration efficiency, afterbody does not need to arrange that special desulfurizer can meet the emission request of oxysulfide SOx;
(3) the present invention adopts and arranges rich oxygen ignition device under bed in air channel or in air compartment, adopts oxygen-enriched ignition mode under bed, improves Fire-under bed in Application of CFB Boiler combustion stability;
(4) the present invention adopts and is furnished with arrangement apparatus in lower furnace portion, makes bed material even fluidizing, prevents bulky grain bed material from depositing, and avoids slagging scorification and leaks slag;
(5) the present invention adopt in note oxygen in warm and humid flue gas, fully after mixing as combustion oxidant, and First air, Secondary Air separately note oxygen by different proportion, can realize regulating note oxygen amount as required, realize First air and the convenient of Secondary Air oxygen content regulates;
(6) sealing air of the present invention and the material returning device elegance circulating flue gas not noting oxygen, security is higher;
(7) warm and humid flue gas recirculation in the present invention's employing, system afterbody part of appliance scale reduces greatly, reduces initial cost and operating cost;
(8) the present invention is directed to hydrogenous coal employing and arrange cigarette cooler in oxygen-enriched combustion boiler system, oxygen-enriched combusting flue gas recirculation process sulphur oxide is avoided in condensation dehydration process, enrichment appears in steam, causes flue gas recycled pipeline and the problem such as heated surface corrosion and the dry difficulty of transportation of pulverized coal preparation system coal dust.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representation.
Wherein: 101-air compartment; 102-air-distribution device; 103-burner hearth; 104-high temperature cyclone separator; 105-material returning device; 106-heating surface; 107-economizer; 108-middle temperature cyclone separator; 109-gas recirculating fan; 110-secondary flue gas recirculation blower; 111-First air oxygen injector; 112-Secondary Air oxygen injector; 113-gas baffle; 114-smoke-gas preheater; 115-deduster; 116-air-introduced machine; 117-cigarette cooler; 118-CO
2compression purification devices; 119-cold flue gas recirculation blower; 120-roots blower; 125-broadcast coal pipe.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, this recirculating fluidized bed oxygen-enriched burning device comprises air compartment 101, air-distribution device 102, burner hearth 103, high temperature cyclone separator 104, material returning device 105, heating surface 106, economizer 107, middle temperature cyclone separator 108, gas recirculating fan 109, secondary flue gas recirculation blower 110, oxygen injector 111, secondary oxygen injector 112, smoke-gas preheater 114, deduster 115, air-introduced machine 116, cigarette cooler 117, CO
2compress purification devices 118, cigarette cooler recirculation blower 119, broadcast coal pipe 125, in running, after burner hearth 103 sent into by coal and desulfurizing agent, surrounded by the inertia high-temperature material be in a large number in sulfided state immediately, abundant mixing, rapid ignition, carry out desulphurization reaction simultaneously, in ascending air, under gravity and External Force Acting, primary air is departed from after oversize grain enters suspension region, thus adherent dirty, strengthen the transmission of furnace heat to working medium in heating surface 106, thus ensure that slightly large coal particle iterative cycles in stove burns completely.Gas-solid mixture containing tiny material enters high temperature cyclone separator 104 after leaving burner hearth 103, be separated returns to burner hearth 103 to a large amount of solid particles (inert material, unburnt coal grain, desulfurizing agent) in Dual-Phrase Distribution of Gas olid, again the fluidisation in stove and combustion heat-exchange is participated in, circulating combustion.
The fine particle be not separated becomes flying dust, back-end ductwork is entered with flue gas, exchange heat is carried out through heating surface 106, absorb the heat in flue gas through economizer 107 after, in warp, the flue gas of 350 DEG C-450 DEG C of warm cyclone separator 108 dedusting is divided into two-way: a road is First air loop, after being boosted by a gas recirculating fan 109, enter First air oxygen injector 111 oxygen of the 40%-60% needed for burning is injected, and by First air oxygen injector 111, oxygen is mixed with circulating flue gas, as First air, burner hearth 3 is entered as fluidized wind by air-distribution device 102 through isobaric air compartment 101, fluidization is risen to bed material, and as the oxide isolation of coal combustion, another road is Secondary Air loop, after being boosted by secondary flue gas recirculation blower 110, enter Secondary Air oxygen injector 112 oxygen of the 60%-40% needed for burning is injected, and by Secondary Air oxygen injector 112, oxygen is mixed with circulating flue gas, entering burner hearth 103 by overfiren air port, is supplementary oxygen amount of burning.
Fuel is entered by coal feeder and broadcasts coal pipe 125, under the effect of coal spread wind, sows into burner hearth 103.The effect of coal spread wind is mainly in order to ensure that the heat smoke in stove is not altered outward; The coal got off to feeder can better be sowed in siege, preventing fuel broadcasting coal pipe 125 formation accumulation, to make the thermal material in coal and burner hearth 103 better mix, impelling homogeneous temperature in burner hearth 103.
Coal spread wind source of the present invention can be two kinds of modes, for high-moisture coal (moisture as received coal content is higher than more than 10%), as shown in Figure 1, adopt the dry and cold flue gas after the process of cigarette cooler 117 condensation dehydration, dry and cold flue gas, again after cold flue gas recirculation blower 119 supercharging, is input to and broadcasts coal pipe 125 as coal spread wind after smoke-gas preheater 114; For the coal (moisture as received coal content is not higher than 10%) that moisture is not high, as shown in Figure 2, adopt secondary flue gas recirculation blower 110 to export, note oxygen before middle temperature flue gas as coal spread wind.
Contaminated environment is exposed in order to prevent coal dust, the coal spread wind in the corresponding two kinds of sources of the present invention, correspondingly can arrange two kinds and broadcast coal sealing air, for high-moisture coal, as shown in Figure 1, broadcast coal sealing air and adopt cold flue gas after the process of cigarette cooler 117 condensation dehydration, cold flue gas again after roots blower 120 supercharging as broadcasting coal sealing air; For the coal that moisture is not high, adopt gas recirculating fan 109 to export, note oxygen before middle temperature flue gas as broadcasting coal sealing air.
The flue gas that burning produces enters high temperature cyclone separator 104 through burner hearth 103 outlet, and the soot particle separated sends burner hearth 103 back to by the material returning device 105 of high temperature cyclone separator 104 bottom.From high temperature cyclone separator 104 flue gas out after heating surface 106 at different levels and economizer 107, warm cyclone separator 108 during major part flue gas (about 50%-65%) is drawn under the effect of a gas recirculating fan 109 and secondary flue gas recirculation blower 110, flue gas in middle temperature cyclone separator 108 after final dusting, respectively as First air and Secondary Air; The flue gas of remaining 40%-30%, successively after smoke-gas preheater 114, deduster 115, air-introduced machine 116, extracts about 15%-30% through the process of cigarette cooler 117 condensation dehydration, and as material returning device 105 wind and broadcast coal wind, remaining desulfurization neat stress delivers to CO
2compression purification devices 118 compresses purifying or enters air by chimney.
Comparatively coal-powder boiler is good to the adaptability of coal for CFBB, and pollutant emission is also low than coal-powder boiler.For oxygen-enriched combusting coal-powder boiler, because pulverized coal preparation system needs to adopt the medium that a large amount of circulation dry flue gas is dry as coal dust and carry, boiler tail air and gas system needs to arrange bulky desulfurizer and cigarette cooler.Adopt the Oxygen enriched Combustion Technology on Circulating Fluidized Bed Test-facility of heat smoke recirculation as a kind of brand-new combustion system, realize comparatively low emission and the large-scale CO of pollutant in coal-burning power plant
2enrichment, reduce discharging and will have larger potentiality.
Embodiment 1:
As shown in Figure 1, a kind of recirculating fluidized bed oxygen-enriched burning device is disclosed in the present embodiment, comprise air compartment 101, the burner hearth 103 being arranged on the air-distribution device 102 above air compartment 101 and being arranged on above air-distribution device 102, high temperature cyclone separator 104 is connected with on described burner hearth 103 top, heating surface 106 is connected with on described high temperature cyclone separator 104 top, economizer 107 is connected with in described heating surface 106 bottom, described high temperature cyclone separator 104 lower end is connected with air-distribution device 102 by material returning device 105, described economizer 107 bottom is connected with middle temperature cyclone separator 108, described middle temperature cyclone separator 108 is connected with air compartment 101 with First air oxygen injector 111 by a gas recirculating fan 109 successively, and described middle temperature cyclone separator 108 bottom is connected with air-distribution device 102 with Secondary Air oxygen injector 112 by secondary flue gas recirculation blower 110 successively, described economizer 107 bottom is successively by smoke-gas preheater 114, deduster 115 is connected with air-introduced machine 116, described air-introduced machine 116 is away from smoke-gas preheater 114 one end and CO
2compression purification devices 118 is connected, and described air-distribution device 102 is provided with and broadcasts coal pipe 125.
In the present embodiment, adopt high temperature cyclone separator 104 and middle temperature cyclone separator 108, the flue gas that gas recirculating fan 109 exports after First air oxygen injector 111 mixture of oxygen as First air, secondary flue gas recirculation blower 110 export flue gas after Secondary Air oxygen injector 112 mixture of oxygen as Secondary Air, because First air and Secondary Air army adopt the flue gas of economizer exit, a gas recirculating fan 109 and secondary flue gas recirculation blower 110 all adopt separate configurations, First air and Secondary Air all adopt separately different proportion note oxygen, the air quantity controlling First air and Secondary Air respectively can be facilitated, and then effectively control goods fluid in burner hearth 103.And material returning device 105 is with wind with broadcast coal pipe 125 wind and all can adopt flue gas through cigarette cooler 117 condensation dehydration.
In order to make the wind being input to smoke-gas preheater 114 have certain pressure, preferably, in the present embodiment, between described economizer 107 and smoke-gas preheater 114, be provided with gas baffle 113.By arranging gas baffle 113, a barrier can be formed in airduct, the flue gas of gas baffle 113 both sides can not be altered mutually, realize sealing function.
In order to improve the desulfurized effect of this device, in the present embodiment, preferably, described air-distribution device 102 is provided with lime stone and adds mouth.Add lime stone in CFBB, normally running under bed temperature (850 DEG C-900 DEG C), pulverized limestone is sintered into calcium oxide (850 DEG C is the best desulfurization temperature of calcium-based desulfurizing agent), thus reaches with sulfur dioxide in conjunction with desulfurized effect.After coal and lime stone burn, most of particle carries out gas solid separation through cyclone separator, is sent back to burner hearth 103 from bottom.Limestone desulfurizer, at the desulfurization performance of fluidized bed combustion indoor, adopts to remove certain content SO usually
2the CaCO added
3represent with the ratio of the amount of substance of sulfur content in coal amount, be called mol ratio.In the present invention, First air and Secondary Air are the wet flue gas containing a large amount of steam, and it enters in stove and is equivalent to be humidified in stove, plays the effect of humidification desulfurization, greatly can improve desulfuration efficiency, can omit afterbody desulphurization system.Preferably, in the present embodiment, broadcast on coal pipe 125 described in lime stone interpolation mouth is positioned at or be positioned on the feed back leg of described material returning device 105.
In order to ensure the safe operation of deduster 115, in the present embodiment, preferably, between described smoke-gas preheater 114 and deduster 115, low-level (stack-gas) economizer is provided with.Flue-gas temperature can be dropped to the temperature range that deduster 115 allows by low-level (stack-gas) economizer, guarantees the safe operation of deduster 115, and meanwhile, can play the effect absorbing fume afterheat, recovery section waste heat, realizes Btu utilization.
Preferably, the present invention adopts bottom ignition device to realize igniting, is namely provided with bottom ignition device in air compartment 101 or air channel.When igniter being arranged in air compartment 101, igniter is arranged on rear side of air compartment 101, one is respectively established on rear side of two isobaric air compartments 101 below recirculating fluidized bed air distribution plate, every platform igniter joins a torch oil gun, First air out after, enter an air compartment 101 from air compartment 101 both sides and two igniters respectively, main air duct and every platform igniter arrange air door.
In the present embodiment, air-distribution device 102 is provided with slag-drip opening, utilizes the mobility of Dual-Phrase Distribution of Gas olid that unnecessary material is discharged burner hearth 103, thus realize the balance of material turnover in stove, maintain material at zone of reasonableness.
Applicant tests discovery, recirculating fluidized bed oxygen-enriched burning device of the present invention, afterbody deduster 115 after economizer 107 and the exhaust gas volumn of air-introduced machine 116 are only equivalent to about 30% of regular air burning, flue gas through cigarette cooler 117 is also only the 5%-10% of total exhaust gas volumn, the part of appliance scale of afterbody air and gas system greatly reduces, and can play the effect reducing initial cost and operating cost.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, and described cold flue gas recirculation blower 119 is away from CO
2compression purification devices 118 one end is connected with roots blower 120, described roots blower 120 respectively with material returning device 105, broadcast coal pipe 125 and be connected.The delivery outlet of described secondary flue gas recirculation blower 110 is connected with described coal pipe 125 of broadcasting.
As shown in Figure 2, from high temperature cyclone separator 104 flue gas out after heating surface 106 at different levels and economizer 107, flue gas is divided into two parts, and a part enters middle temperature cyclone separator 108(and accounts for 70% of flue gas), another part enters CO through afterbody deduster etc.
2compression purification devices 118 compresses purifying or enters air through chimney.In warp, the flue gas of warm cyclone separator 108 dedusting is divided into three tunnels: a road is as First air loop, First air oxygen injector 111 is entered through gas recirculating fan 109 boosting, thus the oxygen of the 40%-60% needed for burning is injected, and by First air oxygen injector 111, oxygen is mixed with circulating flue gas, as First air, burner hearth 103 is entered as fluidized wind by air-distribution device 102 after isobaric air compartment 101, fluidization is risen to bed material, and as the oxide isolation of coal combustion, and export at a gas recirculating fan 109, a part is extracted as coal spread wind before First air oxygen injector 111, second tunnel is secondary circuit, after being boosted by secondary flue gas recirculation blower 110, enter Secondary Air oxygen injector 112 oxygen of the 60%-40% needed for burning is injected, and by Secondary Air oxygen injector 112, oxygen is mixed with circulating flue gas, entering burner hearth 103 by overfiren air port, is coal combustion supplemental oxygen, 3rd tunnel is Roots's wind loop, and after being boosted by roots blower 120, a part is as fluidized wind, feedback air, the loosening wind of material returning device 105, and a part is as the sealing air of boiler measuring point etc.
Afterbody enters CO
2compression purification devices 118 compresses the flue gas that purifying or chimney enter air, before deduster 115, realize cooling by low-level (stack-gas) economizer.
Embodiment 3:
In the present embodiment, in order to ensure the stable operation in Process of Circulating Fluidized Bed Boiler, flue gas recycling quotient is arranged between 65% ~ 80%, accounts for high temperature cyclone separator 104 by middle temperature cyclone separator 108 separating flue and export 65% ~ 80% of flue gas as flue gas recycled and respectively as First air and Secondary Air.By recirculation multiplying power is controlled in this scope, as reduced air by warm flue gas in employing, recycle after note oxygen is carried out to it, make it as bed material fluidizing agent and combustion oxidant, effectively control CO in boiler exhaust gas
2concentration enrichment, to more than 80%, to be beneficial to after coal combustion CO in flue gas
2trapping; Correspondingly, high temperature cyclone separator 104 exports 20% ~ 35% of flue gas successively after smoke-gas preheater 114, deduster 115, air-introduced machine 116, extract about 15%-30% through the process of cigarette cooler 117 condensation dehydration, as material returning device 105 wind and broadcast coal wind, all the other flue gases deliver to CO
2compression purification devices 118 compresses or enters air by chimney.Due to by warm and humid flue gas circulate, system afterbody part of appliance scale can be made greatly to reduce, reduce initial cost and operating cost, and in oxygen-enriched combustion boiler system, arrange cigarette cooler owing to adopting for hydrogenous coal, oxygen-enriched combusting flue gas recirculation process sulphur oxide is avoided in condensation dehydration process, enrichment appears in steam, causes flue gas recycled pipeline and the problem such as heated surface corrosion and the dry difficulty of transportation of pulverized coal preparation system coal dust.
Claims (13)
1. recirculating fluidized bed oxygen-enriched burning device, comprise air compartment (101), be arranged on the air-distribution device (102) of air compartment (101) top and be arranged on the burner hearth (103) of air-distribution device (102) top, high temperature cyclone separator (104) is connected with on described burner hearth (103) top, heating surface (106) is connected with on described high temperature cyclone separator (104) top, economizer (107) is connected with in described heating surface (106) bottom, it is characterized in that: described high temperature cyclone separator (104) lower end is connected with air-distribution device (102) by material returning device (105), described economizer (107) bottom is connected with middle temperature cyclone separator (108), described middle temperature cyclone separator (108) is connected with air compartment (101) with First air oxygen injector (111) by a gas recirculating fan (109) successively, and described middle temperature cyclone separator (108) bottom is connected with air-distribution device (102) with Secondary Air oxygen injector (112) by secondary flue gas recirculation blower (110) successively, described economizer (107) bottom is successively by smoke-gas preheater (114), deduster (115) is connected with air-introduced machine (116), described air-introduced machine (116) is away from smoke-gas preheater (114) one end and CO
2compression purification devices (118) is connected, and described air-distribution device (102) is provided with and broadcasts coal pipe (125).
2. recirculating fluidized bed oxygen-enriched burning device according to claim 1, it is characterized in that: described air-introduced machine (116) is connected with cigarette cooler (117) away from smoke-gas preheater (114) one end, described cigarette cooler (117) is connected with smoke-gas preheater (114) by cold flue gas recirculation blower (119) away from air-introduced machine (116) one end, described smoke-gas preheater (114) with broadcast coal pipe (125) and be connected.
3. recirculating fluidized bed oxygen-enriched burning device according to claim 2, is characterized in that: described cold flue gas recirculation blower (119) is away from CO
2compression purification devices (118) one end is connected with roots blower (120), described roots blower (120) respectively with material returning device (105), broadcast coal pipe (125) and be connected.
4. recirculating fluidized bed oxygen-enriched burning device according to claim 1, is characterized in that: the delivery outlet of described secondary flue gas recirculation blower (110) is connected with described coal pipe (125) of broadcasting.
5. recirculating fluidized bed oxygen-enriched burning device according to claim 4, is characterized in that: the delivery outlet of a described gas recirculating fan (109) is connected with the described entrance broadcasting coal pipe (125).
6. the recirculating fluidized bed oxygen-enriched burning device according to any one of claim 1-5, is characterized in that: between described economizer (107) and smoke-gas preheater (114), be provided with gas baffle (113).
7. the recirculating fluidized bed oxygen-enriched burning device according to any one of claim 1-5, is characterized in that: on described air-distribution device (102), be provided with lime stone add mouth.
8. recirculating fluidized bed oxygen-enriched burning device according to claim 7, is characterized in that: broadcast on coal pipe (125) described in described lime stone interpolation mouth is positioned at and/or be positioned on the feed back leg of described material returning device (105).
9. the recirculating fluidized bed oxygen-enriched burning device according to any one of claim 1-5, is characterized in that: between described smoke-gas preheater (114) and deduster (115), be provided with low-level (stack-gas) economizer.
10. the recirculating fluidized bed oxygen-enriched burning device according to any one of claim 1-5, is characterized in that: in air compartment (101) or air channel, be provided with bottom ignition device.
The operation method of 11. recirculating fluidized bed oxygen-enriched burning devices according to any one of claim 1-10, is characterized in that: described middle temperature cyclone separator (108) separating flue accounts for high temperature cyclone separator (104) and exports 65% ~ 80% of flue gas as flue gas recycled and respectively as First air and Secondary Air.
The operation method of 12. recirculating fluidized bed oxygen-enriched burning devices according to claim 11, it is characterized in that: high temperature cyclone separator (104) exports 20% ~ 35% of flue gas successively after smoke-gas preheater (114), deduster (115), air-introduced machine (116), extract about 15%-30% through cigarette cooler (117) condensation dehydration process, as material returning device (105) wind and broadcast coal wind, all the other flue gases deliver to CO
2compression purification devices (118) is compressed or is entered air by chimney.
The operation method of 13. recirculating fluidized bed oxygen-enriched burning devices according to claim 11, it is characterized in that: described First air oxygen injector (111) injects the oxygen of the 40%-60% needed for burning, described Secondary Air oxygen injector (112) injects the oxygen of the required 60%-40% of burning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228263.2A CN104848213B (en) | 2015-04-08 | 2015-05-07 | Recirculating fluidized bed oxygen-enriched burning device and its operation method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015101628474 | 2015-04-08 | ||
| CN201510162847 | 2015-04-08 | ||
| CN201510228263.2A CN104848213B (en) | 2015-04-08 | 2015-05-07 | Recirculating fluidized bed oxygen-enriched burning device and its operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104848213A true CN104848213A (en) | 2015-08-19 |
| CN104848213B CN104848213B (en) | 2017-03-15 |
Family
ID=53848059
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510228263.2A Active CN104848213B (en) | 2015-04-08 | 2015-05-07 | Recirculating fluidized bed oxygen-enriched burning device and its operation method |
| CN201520291103.8U Withdrawn - After Issue CN204678329U (en) | 2015-04-08 | 2015-05-07 | Recirculating fluidized bed oxygen-enriched burning device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291103.8U Withdrawn - After Issue CN204678329U (en) | 2015-04-08 | 2015-05-07 | Recirculating fluidized bed oxygen-enriched burning device |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN104848213B (en) |
| WO (1) | WO2016161821A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157020A (en) * | 2015-09-25 | 2015-12-16 | 中国神华能源股份有限公司 | Oxygen-enriched combustion system and method |
| CN105698163A (en) * | 2016-01-27 | 2016-06-22 | 华北电力大学 | Oxygen-enriched combustion device and method of solid fuel circulating fluidized bed |
| CN105716061A (en) * | 2015-12-14 | 2016-06-29 | 美的集团股份有限公司 | Steam generator, steam generator system and household appliance |
| CN105972584A (en) * | 2016-07-01 | 2016-09-28 | 南通联发热电有限公司 | Efficient environment-friendly circulating fluidized bed combustion apparatus and combustion method thereof |
| WO2016161821A1 (en) * | 2015-04-08 | 2016-10-13 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed oxygen-enriched combustion apparatus and operation method therefor |
| CN106051751A (en) * | 2016-06-27 | 2016-10-26 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler capable of cooperatively controlling pollutant emission |
| CN106351765A (en) * | 2016-09-19 | 2017-01-25 | 马加德 | Power and heat co-supply system based on Stirling engine and power and heat co-supply method of system |
| CN106594715A (en) * | 2016-12-05 | 2017-04-26 | 中国科学院工程热物理研究所 | Circulating fluidized bed oxygen-enriched combustion method and device with wet flue gas recycled |
| CN108884997A (en) * | 2015-11-26 | 2018-11-23 | 火实力技术有限责任公司 | burner |
| CN109107211A (en) * | 2018-08-30 | 2019-01-01 | 东南大学 | The device and method that air and flue gas compressor and waste heat recycle in a kind of oxygen-enriched combustion system |
| CN111928238A (en) * | 2020-08-28 | 2020-11-13 | 杭州海陆重工有限公司 | Novel air distribution device for fluidized bed boiler |
| CN114032393A (en) * | 2021-10-29 | 2022-02-11 | 神华准格尔能源有限责任公司 | Reaction system for preparing aluminum silicon powder from high-aluminum coal |
| CN114032392A (en) * | 2021-10-29 | 2022-02-11 | 神华准格尔能源有限责任公司 | Method for preparing aluminum silicon powder from high-aluminum coal |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439796A (en) * | 2016-11-09 | 2017-02-22 | 中国环境科学研究院 | Flue gas volume/nitric oxide emission reduction system of low-load coal-fired boiler |
| CN107091473A (en) * | 2016-12-27 | 2017-08-25 | 四川川锅锅炉有限责任公司 | A kind of CFBB high-speed rotational coal spread wind air inlet structure |
| CN107166428B (en) * | 2017-07-24 | 2023-05-23 | 廊坊市华源盛世热力有限公司 | Layer combustion boiler flue gas oxygen content control system based on flue gas recirculation |
| CN107606609B (en) * | 2017-10-31 | 2024-03-19 | 清华大学 | Circulating fluidized bed boiler for burning low-calorific-value high-ash-content fuel |
| CN107631294B (en) * | 2017-10-31 | 2024-03-19 | 清华大学 | Circulating fluidized bed boiler for burning low-heat-value high-ash fuel |
| CN107940448B (en) * | 2017-12-19 | 2024-06-18 | 太原锅炉集团有限公司 | Pulverized coal particle circulating fluidized bed combustion system and combustion method thereof |
| CN109827169B (en) * | 2019-03-19 | 2023-09-26 | 中国能源建设集团华北电力试验研究院有限公司 | Boiler low-temperature flue gas recirculation combustion system and application method thereof |
| CN110080848B (en) * | 2019-05-08 | 2024-02-02 | 上海发电设备成套设计研究院有限责任公司 | Supercritical carbon dioxide circulating coal-fired power generation system |
| CN110375294A (en) * | 2019-08-09 | 2019-10-25 | 新乡市汇能玉源发电有限公司 | A kind of boiler return feeder |
| CN110440241B (en) * | 2019-08-27 | 2024-02-20 | 东方电气集团东方锅炉股份有限公司 | Air series heating system capable of improving boiler efficiency |
| CN110686276A (en) * | 2019-10-31 | 2020-01-14 | 兖矿集团有限公司 | Graded combustion normal-pressure hot water stove and using method thereof |
| CN110701607A (en) * | 2019-11-14 | 2020-01-17 | 山东福宽生物工程有限公司 | Boiler fly ash reburning device and method |
| CN111550770B (en) * | 2020-04-21 | 2022-04-12 | 中国神华能源股份有限公司国华电力分公司 | Oxygen-enriched combustion boiler system and operation method thereof |
| CN111678127A (en) * | 2020-07-24 | 2020-09-18 | 湖北东方化工有限公司 | Device and method for controlling returned ash of material returning device of circulating fluidized bed boiler |
| CN111649321B (en) * | 2020-07-24 | 2024-10-18 | 湖北东方化工有限公司 | Ash discharging device and ash discharging method for sedimentation chamber of circulating fluidized bed boiler |
| CN112128743A (en) * | 2020-09-01 | 2020-12-25 | 哈尔滨锅炉厂有限责任公司 | Primary air uniform distribution device for water-cooled air chamber of CFB boiler |
| CN112212704A (en) * | 2020-10-27 | 2021-01-12 | 李秀梅 | Flue gas recirculation combustion control device of carbon roasting furnace |
| CN112325282A (en) * | 2020-10-29 | 2021-02-05 | 中国石油化工集团有限公司 | Circulating fluidized bed flue gas and fly ash combined circulating system and control method |
| CN112178628A (en) * | 2020-10-30 | 2021-01-05 | 北京热华能源科技有限公司 | Wedge-shaped channel type separating and returning device and multi-process circulating fluidized bed applying same |
| CN112555817A (en) * | 2020-12-15 | 2021-03-26 | 江苏兴特嘉环保设备制造有限公司 | Boiler combustion system |
| CN112856375B (en) * | 2021-02-04 | 2023-01-17 | 中国神华能源股份有限公司国华电力分公司 | Oxygen-enriched combustion boiler |
| CN113074376B (en) * | 2021-03-24 | 2022-10-25 | 西安交通大学 | Gasification fly ash low NO x Combustion fusion processing system and method |
| CN113007700B (en) * | 2021-03-24 | 2022-07-12 | 华北电力大学 | Oxygen-enriched combustion system and method for biomass circulating fluidized bed |
| CN113483321A (en) * | 2021-06-02 | 2021-10-08 | 江联重工集团股份有限公司 | Flue gas temperature control system for superheater of garbage furnace |
| CN114159960A (en) * | 2021-10-11 | 2022-03-11 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Alkaline slurry injection SO that can accurate measurement is adjusted3Removal equipment |
| CN115218199B (en) * | 2022-06-29 | 2024-07-09 | 光大环境科技（中国）有限公司 | Automatic control method for flue gas recirculation and over-fire air |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0049592A1 (en) * | 1980-10-06 | 1982-04-14 | The Energy Equipment Company Limited | Fluidised bed combustion units |
| CN87103597A (en) * | 1986-05-19 | 1988-01-27 | 福斯特·维勒能源公司 | The method that has separate recycle bed fluidized bed steam generator and generation steam |
| JPS63282403A (en) * | 1987-05-13 | 1988-11-18 | Babcock Hitachi Kk | Fluidized-bed combustor |
| CN1959208A (en) * | 2006-11-09 | 2007-05-09 | 华中科技大学 | Boiler system of circulating fluid bed burning in oxygen enrichment |
| CN101372635A (en) * | 2008-10-15 | 2009-02-25 | 东南大学 | High-density pressurized fluidized bed coal gasification apparatus and method |
| CN101766951A (en) * | 2008-12-31 | 2010-07-07 | 北京中科通用能源环保有限责任公司 | System and method for restraining generation of dioxins in the process of reducing temperature of exhaust gas caused by incinerating garbage |
| CN102425789A (en) * | 2011-11-03 | 2012-04-25 | 华北电力大学（保定） | Coal-fired fluidized bed micro oxygen rich combustion CO2 emission reduction method and system |
| CN103953921A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Oxygen-enriched combustion boiler system and operation method thereof |
| CN204678329U (en) * | 2015-04-08 | 2015-09-30 | 东方电气集团东方锅炉股份有限公司 | Recirculating fluidized bed oxygen-enriched burning device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628590B (en) * | 2012-03-20 | 2014-09-17 | 广东电网公司电力科学研究院 | Biomass circulating fluidized bed direct combustion apparatus |
| TWI638770B (en) * | 2012-09-18 | 2018-10-21 | 美商艾克頌美孚上游研究公司 | Reactor system for the production of carbon allotropes |
| CN102927563A (en) * | 2012-11-15 | 2013-02-13 | 辽宁省电力有限公司电力科学研究院 | Local oxygen-enriched combustion transformation system for conventional circulating fluidized bed boiler with external bed |
| CN103205281A (en) * | 2013-03-29 | 2013-07-17 | 合肥德博生物能源科技有限公司 | Gasification system of oxygen-enriched biomass circulating fluidized-bed |
-
2015
- 2015-05-07 CN CN201510228263.2A patent/CN104848213B/en active Active
- 2015-05-07 CN CN201520291103.8U patent/CN204678329U/en not_active Withdrawn - After Issue
- 2015-12-29 WO PCT/CN2015/099445 patent/WO2016161821A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0049592A1 (en) * | 1980-10-06 | 1982-04-14 | The Energy Equipment Company Limited | Fluidised bed combustion units |
| CN87103597A (en) * | 1986-05-19 | 1988-01-27 | 福斯特·维勒能源公司 | The method that has separate recycle bed fluidized bed steam generator and generation steam |
| JPS63282403A (en) * | 1987-05-13 | 1988-11-18 | Babcock Hitachi Kk | Fluidized-bed combustor |
| CN1959208A (en) * | 2006-11-09 | 2007-05-09 | 华中科技大学 | Boiler system of circulating fluid bed burning in oxygen enrichment |
| CN101372635A (en) * | 2008-10-15 | 2009-02-25 | 东南大学 | High-density pressurized fluidized bed coal gasification apparatus and method |
| CN101766951A (en) * | 2008-12-31 | 2010-07-07 | 北京中科通用能源环保有限责任公司 | System and method for restraining generation of dioxins in the process of reducing temperature of exhaust gas caused by incinerating garbage |
| CN102425789A (en) * | 2011-11-03 | 2012-04-25 | 华北电力大学（保定） | Coal-fired fluidized bed micro oxygen rich combustion CO2 emission reduction method and system |
| CN103953921A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Oxygen-enriched combustion boiler system and operation method thereof |
| CN204678329U (en) * | 2015-04-08 | 2015-09-30 | 东方电气集团东方锅炉股份有限公司 | Recirculating fluidized bed oxygen-enriched burning device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016161821A1 (en) * | 2015-04-08 | 2016-10-13 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed oxygen-enriched combustion apparatus and operation method therefor |
| CN105157020B (en) * | 2015-09-25 | 2018-04-10 | 中国神华能源股份有限公司 | oxygen-enriched combustion system and method |
| CN105157020A (en) * | 2015-09-25 | 2015-12-16 | 中国神华能源股份有限公司 | Oxygen-enriched combustion system and method |
| CN108884997A (en) * | 2015-11-26 | 2018-11-23 | 火实力技术有限责任公司 | burner |
| CN105716061A (en) * | 2015-12-14 | 2016-06-29 | 美的集团股份有限公司 | Steam generator, steam generator system and household appliance |
| CN105698163A (en) * | 2016-01-27 | 2016-06-22 | 华北电力大学 | Oxygen-enriched combustion device and method of solid fuel circulating fluidized bed |
| CN106051751B (en) * | 2016-06-27 | 2018-04-06 | 东方电气集团东方锅炉股份有限公司 | The CFBB of Collaborative Control pollutant emission |
| CN106051751A (en) * | 2016-06-27 | 2016-10-26 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler capable of cooperatively controlling pollutant emission |
| CN105972584A (en) * | 2016-07-01 | 2016-09-28 | 南通联发热电有限公司 | Efficient environment-friendly circulating fluidized bed combustion apparatus and combustion method thereof |
| CN106351765B (en) * | 2016-09-19 | 2017-10-10 | 马加德 | A kind of electric heating co-feeding system and its electric heating method of combined supply based on Stirling-electric hybrid |
| CN106351765A (en) * | 2016-09-19 | 2017-01-25 | 马加德 | Power and heat co-supply system based on Stirling engine and power and heat co-supply method of system |
| CN106594715A (en) * | 2016-12-05 | 2017-04-26 | 中国科学院工程热物理研究所 | Circulating fluidized bed oxygen-enriched combustion method and device with wet flue gas recycled |
| CN109107211A (en) * | 2018-08-30 | 2019-01-01 | 东南大学 | The device and method that air and flue gas compressor and waste heat recycle in a kind of oxygen-enriched combustion system |
| CN109107211B (en) * | 2018-08-30 | 2021-03-23 | 东南大学 | Device and method for compressing air and flue gas and recovering waste heat in oxygen-enriched combustion system |
| CN111928238A (en) * | 2020-08-28 | 2020-11-13 | 杭州海陆重工有限公司 | Novel air distribution device for fluidized bed boiler |
| CN114032393A (en) * | 2021-10-29 | 2022-02-11 | 神华准格尔能源有限责任公司 | Reaction system for preparing aluminum silicon powder from high-aluminum coal |
| CN114032392A (en) * | 2021-10-29 | 2022-02-11 | 神华准格尔能源有限责任公司 | Method for preparing aluminum silicon powder from high-aluminum coal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104848213B (en) | 2017-03-15 |
| CN204678329U (en) | 2015-09-30 |
| WO2016161821A1 (en) | 2016-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204678329U (en) | Recirculating fluidized bed oxygen-enriched burning device | |
| CN100441946C (en) | Boiler system of circulating fluid bed burning in oxygen enrichment | |
| CN103953921B (en) | Oxygen-enriched combustion boiler system and operation method thereof | |
| CN103471093B (en) | The air distribution method of recirculating fluidized bed oxygen-enriched combusting | |
| CN101592336A (en) | A kind of fluidized-bed combustion boiler | |
| CN104748108B (en) | The combustion system and method for Collaborative Control CFB boiler in-furnace desulfurization, denitration | |
| CN203823745U (en) | Oxygen-enriched combustion boiler system | |
| CN105698163A (en) | Oxygen-enriched combustion device and method of solid fuel circulating fluidized bed | |
| CN204400906U (en) | Pulverized coal pyrolysis pollutant disposal system and boiler combustion system | |
| CN101368724B (en) | Coal thermal decomposition grate firing apparatus and its combustion method | |
| CN104807002A (en) | Circulating fluidized bed boiler oxygen-enriched combustion dry desulphurization system and method | |
| CN204554798U (en) | A kind of CFBB oxygen-enriched combusting dry method desulfuration system | |
| CN105444582A (en) | Cement kiln tail flue gas treatment device and technological method characterized by combination of bypass air release and staged combustion | |
| CN105838401A (en) | Method and system for processing pollutant resulting from coal fines pyrolysis and boiler combustion system | |
| CN101280920B (en) | Fluidization-suspension combined combustion boiler | |
| CN103234196A (en) | Front coal gasification grate-firing device and combustion method thereof | |
| CN200975664Y (en) | Oxygen-enriched combustion circulating fluid bed boiler system | |
| CN201434374Y (en) | Fluidized bed boiler | |
| CN205425856U (en) | Cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton | |
| CN109812830A (en) | A kind of biologic grain and coal-fired coupled electricity-generation system and method | |
| CN113074366A (en) | Coal-fired flue gas CO2 solidification adsorption system | |
| CN108826280B (en) | Circulating fluidized bed boiler burning Indonesian coal | |
| CN110701606A (en) | Boiler fly ash reburning device and method | |
| CN108105759B (en) | Method for realizing ultralow emission of NOx of circulating fluidized bed boiler | |
| CN102818248A (en) | High-chlorine biomass and coal co-utilizing system with low-chlorine-corrosion and low-mercury discharge and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |