CN103398371B - A kind of two low type boiler using high basic metal coal - Google Patents
A kind of two low type boiler using high basic metal coal Download PDFInfo
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Abstract
A kind of two low type boiler using high basic metal coal, comprise burner hearth, burner hearth is divided into small size burner hearth emulsion zone and large scale burner hearth dilute-phase zone, small size burner hearth emulsion zone connects coal supply system, large scale burner hearth dilute-phase zone connects separator inlet flue, the volume of large scale burner hearth dilute-phase zone is more than 5 times of small size burner hearth emulsion zone volume, the present invention is by reducing burner hearth void tower flow velocity, increase burner hearth effective depth and alkali metal enrichment ash exhaust system, reduce burner hearth running temperature and separation and thickening, combustion zone temperature is made to control between 650 ~ 850 DEG C, change the emission form of alkali metal and compound thereof and reduce its amount of precipitation, the gaseous alkali metal that generates during burning and compounds main thereof is made to be solidificated in flying dust, in end slag and bed material, avoid producing serious Slag and accumulating ash, improve the continuous cycle of operation, it is low that this boiler also has pollutant emission, do not limit by unit capacity, coal adaptability is wide, do not throw oil steady combustion load low, efficiency of combustion is high, the advantages such as end slag discharge capacity is few.
Description
Technical field
The invention belongs to clean coal burning and utilize technical field, particularly a kind of two low type boiler using high basic metal coal.
Background technology
China is the country of rich coal resources, and prediction coal total resources, more than 5,000,000,000,000 tons, occupy third place in the world, but the most coal resources of China is positioned at the west areas such as Xinjiang.Find in the process using the ground coals such as Xinjiang, in a considerable amount of boiler furnace, superheater and reheater region can form the very strong dust stratification of large stretch of caking property in a short time, and with serious high temperature corrosion, finally cause boiler large area booster, directly affects the reliability of boiler operatiopn, security and economy.Research finds, cause the reason of the problems referred to above mainly in coal the alkali metal content such as sodium and potassium higher, the moisture of this kind of high basic metal content coal and volatile matter content general higher, ash content, calorific value are lower.Be subject to the impact that the alkali metal contents such as sodium in coal ash and potassium are higher, the ash fusion point of coal is general lower, and coal ash shows extremely strong contamination in combustion, belongs to strong fouling and slagging type ash.
Heating surface can be caused to stain and affect boiler heat-transfer owing to using high basic metal content coal, in prior art means, generally blow the grey frequency by increase furnace cross-sectional area, Optimizing Combustion and air distribution, increase, use the means such as additive, coal mixing combustion to be delayed, but be difficult to radical cure all the time.Use high basic metal content coal both at home and abroad and all belong to a great problem, therefore high basic metal content coal only carries out mixing burning utilization in the regional minority power plant of the U.S., Australia and Xinjiang of China.Mix in burning process, pulverized-coal fired boiler easily occurs staiing blockage problem in the slagging scorification of burner in the stove region and high temperature superheater, high temperature reheater, at bed surface, CFBB easily occurs that coking and back-end ductwork heating surface stain blockage problem.Although the cycle of operation generally speaking using the CFBB of high basic metal content coal will be longer than pulverized-coal fired boiler, and the mixed-fuel burning proportion of CFBB is higher than pulverized-coal fired boiler (being generally 40% ~ 50%), but due to mix that to burn coal price higher, the economy of unit operation receives and affects significantly.
Therefore, want the extensive utilization realizing coal resources in China, in the urgent need to seeking a kind of apparatus and method directly using high basic metal coal.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of two low type boiler using high basic metal coal, can clean and effective use high basic metal coal, avoid Slag and accumulating ash.
To achieve these goals, the technical solution used in the present invention is:
A kind of two low type boiler using high basic metal coal, comprise burner hearth, described burner hearth is divided into small size burner hearth emulsion zone 1 and large scale burner hearth dilute-phase zone 2, small size burner hearth emulsion zone 1 connects coal supply system 18, large scale burner hearth dilute-phase zone 2 connects separator inlet flue 3, and the volume of large scale burner hearth dilute-phase zone 2 is more than 5 times of small size burner hearth emulsion zone 1 volume.
The free height of described large scale burner hearth dilute-phase zone 2 is more than 2 times of small size burner hearth emulsion zone 1 length or more than 5 times of small size burner hearth emulsion zone 1 width.
Strengthening heating surface A in stove is provided with in described large scale burner hearth dilute-phase zone 2.
In described stove, strengthening heating surface A is the curtain wall that multi-disc is arranged.
Intercept between described curtain wall is greater than 0.5m, is highly greater than 60% of large scale burner hearth dilute-phase zone 2 free height, and width is greater than 15% of large scale burner hearth dilute-phase zone 2 span width.
Described small size burner hearth emulsion zone 1 is connected with material returning device 6 by feed back pipe 7, material returning device 6 connects the dust-exhausting port of eccentric cyclone separator 4 by standpipe 5, the ash-laden gas outlet of eccentric cyclone separator 4 connects large scale burner hearth dilute-phase zone 2 by separator inlet flue 3, clean flue gas after eccentric cyclone separator 4 dedusting is entered by central cylinder of separator 8 and turns to flue 9, turn to flue 9 to connect longitudinal back-end ductwork 10, bottom back-end ductwork 10, be provided with ash bucket 11.
Reducing can also be adopted to arrange for improving efficiency of combustion central cylinder of separator, the separative efficiency of eccentric cyclone separator 4 of the present invention is more than 99.5%.
Described turning in flue 9 is provided with additional hardening cooling heating surface C, and described additional hardening cooling heating surface C is preferably convection type heating surface, can reduce flue-gas temperature more than 50 DEG C.
Be provided with multiple parallel back-end ductwork heating surface B in described back-end ductwork 10, cooled flue gas is finally discharged by the outlet of back-end ductwork 10.Preferably described back-end ductwork heating surface B adopts large intercept to design, and the intercept between adjacent tail portions flue surface B is greater than 0.15m, and the volume of back-end ductwork 10 is more than 20 times of back-end ductwork heating surface B volume.
Described back-end ductwork heating surface B,
Described small size burner hearth emulsion zone 1:
Inert bed material add-on system 14 is connected by inert bed material adding tube 15;
Desulfurizing agent add-on system 16 is connected by desulfurizing agent adding tube 17;
Be provided with slag-drip opening 23.
By desulfurizing agent add-on system 16 can regularly or continuous supplementation lime stone, calcium hydroxide, carbide slag maybe can serve as the material of desulfurizing agent, to reduce SO2 concentration of emission.
Be provided with denitrification reducing agent entrance 21 in described separator inlet flue 3, regularly or continuously can spray into the material that aqueous solution of urea, ammoniacal liquor, liquefied ammonia maybe can serve as denitrfying agent, to reduce NO by denitrification reducing agent entrance 21
xconcentration of emission.
Described separator inlet flue 3, turn in flue 9 and back-end ductwork 10 be provided with flue gas along journey purge soot cleaning system 20, carry out strengthening along flow of flue gas direction and blow ash, purge soot cleaning system 20 periphery at flue gas along journey and be provided with ash removing opening, supplementary deashing can be carried out by manpower or machinery.
Described flue gas purges soot cleaning system 20 along journey and mainly comprises soot blower, can be disposed closely between different heating surface or between the zones of different of identical heating surface along flow of flue gas direction, soot blower quantity is every meter more than 1, and sootblowing dielectric can be steam, air, combustion gas or water.
Described small size burner hearth emulsion zone 1 and large scale burner hearth dilute-phase zone 2:
Operating temperature controls between 650 ~ 850 DEG C;
Air current flow speed is 3 ~ 5m/s;
The high basic metal coal time of staying is more than 5s.
Compared with prior art, the invention has the beneficial effects as follows:
1., because ignition temperature is low, reduce the burst size of alkali metal and compound thereof to greatest extent;
2., although ignition temperature decreases, utilize high-efficiency eccentric cyclone separator to achieve flying dust and efficiently trap loopback, air velocity is low, and burner hearth free height is higher in addition, extends the time of staying of particle, ensure that efficiency of combustion;
3. achieve desulfurization and denitration while using high basic metal coal, boiler environmental protection index is superior;
4. utilize a large amount of self-loopas of bed material in stove, to ensure that in stove strengthening heating surface in water-cooling wall and stove from deashing effect;
5. the dust stratification of large volume back-end ductwork and large intercept back-end ductwork heating surface is very loose, and flue gas purges soot cleaning system along journey and is easy to cleaning, avoids deposition.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.。
Fig. 2 is the top view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.But those skilled in the art understand, and protection scope of the present invention is not limited to the content of following embodiment, any improvement of making on basis of the present invention and change, all within protection scope of the present invention.
Embodiment 1:
For the large-sized boiler generated electricity, mainly use high basic metal content coal.See Fig. 1 and Fig. 2, the burner hearth of this boiler comprises the large scale burner hearth dilute-phase zone 2 of 1 small size burner hearth emulsion zone 1 and the side of being located thereon, small size burner hearth emulsion zone 1 connects coal supply system 18, desulfurizing agent add-on system 16 and inert bed material add-on system 14, and bottom is provided with slag-drip opening 23.Large scale burner hearth dilute-phase zone 2 connects separator inlet flue 3.Be provided with strengthening heating surface A in stove in large scale burner hearth dilute-phase zone 2, in stove, strengthening heating surface A is 16 curtain walls arranged.Fuel needed for burning sends into small size burner hearth emulsion zone 1, in order to reduce SO by coal supply system 18 by coal spout 19
2concentration of emission, supplements lime stone continuously by desulfurizing agent add-on system 16 and carries out desulfuration in furnace as desulfurizing agent in small size burner hearth emulsion zone 1.
Large scale burner hearth dilute-phase zone 2 adopts large volume, high clear height to design, and the volume of large scale burner hearth dilute-phase zone 2 is 5 times of small size burner hearth emulsion zone 1 volume, and the free height of large scale burner hearth dilute-phase zone 2 is 2 times of small size burner hearth emulsion zone length simultaneously.Strengthening heating surface A is arranged in the front wall of burner hearth and Hou Qiang is arranged symmetrically with 8 in stove, and the intercept between every sheet curtain wall is 2m, is highly greater than 60% of large scale burner hearth dilute-phase zone free height, and width is greater than 15% of large scale burner hearth dilute-phase zone span width.
Large scale burner hearth dilute-phase zone 2 is connected by separator inlet flue 3 with eccentric cyclone separator 4, eccentric totally 3, cyclone separator 4, clean flue gas after the dedusting of eccentric cyclone separator 4 is entered by central cylinder of separator 8 and turns to flue 9, and central cylinder of separator 8 adopts arranged off-centre.In order to avoid alkali metal and oxide thereof are in the deposition of back-end ductwork, turn in flue 9 and be provided with additional hardening cooling heating surface C, it is convection type heating surface, can reduce flue-gas temperature more than 50 DEG C by this heating surface.
Turn to flue 9 to be connected with longitudinal back-end ductwork 10, have ash bucket 11 bottom back-end ductwork 10, be furnished with back-end ductwork heating surface B in back-end ductwork 10, cooled flue gas finally exports 13 by back-end ductwork and discharges.A small amount of dust is discharged from ash bucket ash discharging hole 12 after assembling in ash bucket 11.Back-end ductwork 10 is large volume back-end ductwork, and its volume is more than 40 times of back-end ductwork heating surface B total measurement (volume).Meanwhile, back-end ductwork heating surface B adopts large intercept to design, and its intercept is greater than 0.3m.
The temperature of small size burner hearth emulsion zone 1 and large scale burner hearth dilute-phase zone 2 controls between 650 ~ 850 DEG C, and air current flow speed is 4.5m/s, because this temperature is lower than the best combustion temperature of CFBB, therefore adopts multiple means to guarantee efficiency of combustion.The first, adopt the design of the overall high clear height of boiler, guarantee that the particle overall time of staying is more than 5s; The second, utilize that inert bed material add-on system is regular or replenishment cycles is grey serves as bed material, reduce bed material carbon residue, improve desulfurizing agent utilization ratio; 3rd, adopt more than the separative efficiency to 99.5% improving separator, reduce heat loss due to incomplete combustion.
The fine grained of lime-ash is carried away by flue gas, and the alkali metal enrichment ash exhaust system 22 that the slag-drip opening 23 that a part is arranged by small size burner hearth emulsion zone 1 and material returning device 6 are arranged regularly is discharged.Because ignition temperature is low, condensation cure gaseous alkali metal and compound thereof in flying dust, end slag and bed material are also undertaken replacing and enrichment discharge by slag-drip opening 23 and alkali metal enrichment ash exhaust system 22.
Because alkali metal and oxide thereof can form one deck attachment at heating surface, and then be bonded on heating surface, along with the prolongation of running time, progressively thicken, until blocking.For this reason, separator inlet flue 3, turn in flue 9, back-end ductwork 10 be provided with flue gas along journey purge soot cleaning system 20, flue gas purges soot cleaning system 20 along journey and mainly comprises a soot blower, carry out strengthening along flow of flue gas direction and blow ash, sootblowing dielectric selects steam and combustion gas, and soot blower arranges that density is 1.5 every meter.In addition, purge soot cleaning system 20 periphery at flue gas along journey and be also provided with ash removing opening, in particular cases can carry out supplementary deashing by manpower.The ash bucket 11 that back-end ductwork 10 bottom is arranged and ash bucket ash discharging hole 12, can dust stratification in periodic exhaustion back-end ductwork.
In order to reduce NOX concentration of emission, boiler is also provided with denitrification reducing agent entrance 21, and run duration sprays into aqueous solution of urea continuously and serves as denitrfying agent, carries out denitrating flue gas.
Embodiment 2:
For a miniature boiler for steam supply, mainly use high basic metal coal.Be provided with 4 curtain wall A arranged in large scale burner hearth dilute-phase zone 2, be arranged in front wall, the intercept between every sheet curtain wall is 3m.Eccentric cyclone separator 4 arranges 2 altogether.
The temperature of small size burner hearth emulsion zone 1 and large scale burner hearth dilute-phase zone 2 controls at 840 DEG C, and air current flow speed is 4.2m/s.Turn in flue 9 and additional hardening cooling heating surface C is not set.
Boiler does not arrange alkali metal enrichment ash exhaust system 2, and condensation cure gaseous alkali metal and compound thereof in flying dust, end slag and bed material are discharged by slag-drip opening 23 enrichment.
Flue gas purges soot cleaning system 20 along journey, and soot blower arranges that density is 1 every meter, and sootblowing dielectric is steam.
Claims (8)
1. one kind uses the two low type boiler of high basic metal coal, comprise burner hearth, it is characterized in that, described burner hearth is divided into small size burner hearth emulsion zone (1) and is positioned at the large scale burner hearth dilute-phase zone (2) of small size burner hearth emulsion zone (1) top, small size burner hearth emulsion zone (1) connects coal supply system (18), large scale burner hearth dilute-phase zone (2) connects separator inlet flue (3), large scale burner hearth dilute-phase zone (2) adopts large volume, high clear height design, and the volume of large scale burner hearth dilute-phase zone (2) is more than 5 times of small size burner hearth emulsion zone (1) volume, the free height of described large scale burner hearth dilute-phase zone (2) is more than 2 times of small size burner hearth emulsion zone (1) length or more than 5 times of small size burner hearth emulsion zone (1) width, the operating temperature of small size burner hearth emulsion zone (1) and large scale burner hearth dilute-phase zone (2) controls between 650 ~ 850 DEG C, air current flow speed is 3 ~ 5m/s, the high basic metal coal time of staying is more than 5s.
2. the two low type boiler using high basic metal coal according to claim 1, is characterized in that, is provided with strengthening heating surface (A) in stove in described large scale burner hearth dilute-phase zone (2).
3. the two low type boiler using high basic metal coal according to claim 2, is characterized in that, the curtain wall that in described stove, strengthening heating surface (A) is arranged for multi-disc.
4. the two low type boiler using high basic metal coal according to claim 3, it is characterized in that, intercept between described curtain wall is greater than 0.5m, highly be greater than 60% of large scale burner hearth dilute-phase zone (2) free height, width is greater than 15% of large scale burner hearth dilute-phase zone (2) span width.
5. the two low type boiler using high basic metal coal according to claim 1, it is characterized in that, described small size burner hearth emulsion zone (1) is connected with material returning device (6) by feed back pipe (7), material returning device (6) connects the dust-exhausting port of eccentric cyclone separator (4) by standpipe (5), the ash-laden gas outlet of eccentric cyclone separator (4) connects large scale burner hearth dilute-phase zone (2) by separator inlet flue (3), clean flue gas after the dedusting of eccentric cyclone separator (4) is entered by central cylinder of separator (8) and turns to flue (9), flue (9) is turned to connect longitudinal back-end ductwork (10), back-end ductwork (10) bottom is provided with ash bucket (11).
6. the two low type boiler using high basic metal coal according to claim 5, is characterized in that, described in turn in flue (9) be provided with additional hardening cooling heating surface (C); Multiple parallel back-end ductwork heating surface (B) is provided with in described back-end ductwork (10), intercept between adjacent tail portions flue surface (B) is greater than 0.15m, and the volume of back-end ductwork (10) is more than 20 times of back-end ductwork heating surface (B) volume.
7. the two low type boiler using high basic metal coal according to claim 5, it is characterized in that, denitrification reducing agent entrance (21) is provided with in described separator inlet flue (3), described separator inlet flue (3), turn to and be provided with flue gas in flue (9) and back-end ductwork (10) and purge soot cleaning system (20) along journey, purge soot cleaning system (20) periphery at flue gas along journey and be provided with ash removing opening.
8. the two low type boiler using high basic metal coal according to claim 1, is characterized in that, described small size burner hearth emulsion zone (1):
Inert bed material add-on system (14) is connected by inert bed material adding tube (15);
Desulfurizing agent add-on system (16) is connected by desulfurizing agent adding tube (17);
Be provided with slag-drip opening (23).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107270281A (en) * | 2017-07-03 | 2017-10-20 | 国丰新能源江苏有限公司 | Biomass recirculating fluidized bed boiler and its operation method |
| CN107631293A (en) * | 2017-10-27 | 2018-01-26 | 湘潭锅炉有限责任公司 | A kind of CFBB |
| CN114717027A (en) * | 2021-01-06 | 2022-07-08 | 新疆宜化化工有限公司 | Circulating fluidized bed gasification device and process suitable for high-alkali low-ash-melting-point coal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060794A (en) * | 1990-10-15 | 1992-05-06 | 阿尔斯特罗姆公司 | Cyclone |
| CN1800063A (en) * | 2006-01-04 | 2006-07-12 | 东南大学 | City sludge fluidized bed combustion device and method |
| CN101113816A (en) * | 2006-07-27 | 2008-01-30 | 中国科学院工程热物理研究所 | Biomass circulating fluid bed burning method and biomass circulating fluid bed boiler |
| CN102302893A (en) * | 2011-06-20 | 2012-01-04 | 中国华能集团清洁能源技术研究院有限公司 | Selective non-catalytic reduction and denitration method for circulating fluidized bed boiler |
| CN203478209U (en) * | 2013-07-01 | 2014-03-12 | 中国华能集团清洁能源技术研究院有限公司 | Double-low type boiler capable of cleanly combusting high-alkali-metal coal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6637354B2 (en) * | 2000-03-24 | 2003-10-28 | Wisconsin Electric Power Company | Coal combustion products recovery process |
| CN100408917C (en) * | 2006-01-25 | 2008-08-06 | 浙江大学 | Circulating fluidized bed combustion device with biomass fuel and combustion method thereof |
-
2013
- 2013-07-01 CN CN201310272324.6A patent/CN103398371B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060794A (en) * | 1990-10-15 | 1992-05-06 | 阿尔斯特罗姆公司 | Cyclone |
| CN1800063A (en) * | 2006-01-04 | 2006-07-12 | 东南大学 | City sludge fluidized bed combustion device and method |
| CN101113816A (en) * | 2006-07-27 | 2008-01-30 | 中国科学院工程热物理研究所 | Biomass circulating fluid bed burning method and biomass circulating fluid bed boiler |
| CN102302893A (en) * | 2011-06-20 | 2012-01-04 | 中国华能集团清洁能源技术研究院有限公司 | Selective non-catalytic reduction and denitration method for circulating fluidized bed boiler |
| CN203478209U (en) * | 2013-07-01 | 2014-03-12 | 中国华能集团清洁能源技术研究院有限公司 | Double-low type boiler capable of cleanly combusting high-alkali-metal coal |
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