CN102305406A - Circulating fluid bed waste incineration boiler with open-type furnace chamber - Google Patents
Circulating fluid bed waste incineration boiler with open-type furnace chamber Download PDFInfo
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- CN102305406A CN102305406A CN201110242467A CN201110242467A CN102305406A CN 102305406 A CN102305406 A CN 102305406A CN 201110242467 A CN201110242467 A CN 201110242467A CN 201110242467 A CN201110242467 A CN 201110242467A CN 102305406 A CN102305406 A CN 102305406A
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Abstract
The invention relates to a circulating fluid bed waste incineration boiler with an open-type furnace chamber. The circulating fluid bed waste incineration boiler comprises the open-type furnace chamber, a cyclone separator, a cooling chamber and a tail convection flue which are connected with one another in turn, wherein the lower end of the cyclone separator is connected with an external heat exchanger, and the other end of the external heat exchanger is connected with the open-type furnace chamber; a high-temperature over-heater is arranged in the external heat exchanger; a plurality of air distribution tubes are arranged on the same horizontal plane equidistantly to form an open-type air distribution plate which is arranged at the bottom of the open-type furnace chamber; an ash hopper is connected below the open-type air distribution plate; a fuel ash valve is arranged below the ash hopper; the open-type air distribution plate separates the upper part of the open-type furnace chamber and the ash hopper; and the open-type air distribution plate consists of the plurality of air distribution tubes. The circulating fluid bed waste incineration boiler can successfully discharge materials which can be easily wound on an air cap, or large-particle or even blocky materials such as iron wires, iron nails and the like in wastes, can uniformly distribute air, is difficult to coke and clinker, and fulfills the aims of prolonging the continuous operation time of the waste incineration boiler and saving energy resources.
Description
Technical field
The present invention relates to a kind of open type burner hearth refuse incinerator of circulating fluid bed; Its advantage is can discharge the iron wire that carries in the rubbish, iron nail etc. smoothly to twine blast cap or the bigger even block material of particle easily, prolongs the continuous operating time of garbage burning boiler.
Background technology
At present, most refuse incinerator of circulating fluid bed adopt and the similar water-cooled distributor of fire coal circulating fluid bed boiler, mostly by forming water cooled wind chamber with all the other burner hearth fin panel casings after the bending of burner hearth fin panel casing.Be water-cooled distributor above the water cooled wind chamber, the blast cap that is used for goods fluid is installed on it; Generally front side or the rear side at water cooled wind chamber is provided with the grease gun igniting burner, is used for boiler ignition start.For twining the bigger even block thing of blast cap or particle easily, the iron wire that will carry in the rubbish, iron nail etc. discharge; Mainly by following two kinds of structures: the one, the water-cooled distributor horizontal arrangement is provided with the square or circular slag-drip opening bigger than fire coal circulating fluid bed boiler thereon.The 2nd, water-cooled distributor is arranged to tilting, and the same wide rectangle slag tap with air distribution plate is set in the lower.
Facts have proved that above-mentioned air distribution plate no matter be horizontal arrangement or be in tilted layout, all exists and is difficult for fragmentation in the rubbish, incombustible elongate material (like iron wire, iron nail etc.) twines blast cap easily, causes the boiler fluidisation bad, needs the blowing out cleaning when serious; In addition, because the slag tap area is bigger, although taked some cloth wind measures, the accident such as the easy slagging scorification in slag tap place that still exists in service; For the bigger even block thing of particle in the rubbish, the tilting air distribution plate is better than horizontal air distribution plate, but the rectangle slag tap area of its lower is bigger, is easy to generate the fluidisation bad phenomenon.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point; Thereby a kind of open type burner hearth refuse incinerator of circulating fluid bed is provided; The iron wire that carries in the rubbish, iron nail etc. be can discharge smoothly and blast cap or the bigger even block thing of particle twined easily; Cloth wind is even; Be difficult for coking or slagging scorification, prolong the continuous operating time of garbage burning boiler.
According to technical scheme provided by the invention, open type burner hearth refuse incinerator of circulating fluid bed comprises open type burner hearth, cyclone separator, cooling chamber and the afterbody convection pass that connects successively; Said cyclone separator lower end connects external heat exchanger, and the other end of said external heat exchanger connects the open type burner hearth; Be provided with high temperature superheater in the said external heat exchanger; Described open type burner hearth is provided with garbage feeding mouth and auxiliary fuel material inlet, two Room before and after said cooling chamber divides, indoor low temperature superheater, the economizer of being provided with; Secondary wind air preheater and a wind air preheater are set in the said afterbody convection pass; Characteristic is: some wind-distributing pipes are by forming the open type air distribution plate on the same horizontal plane of being arranged in of a determining deviation, the open type air distribution plate is arranged on the open type burner hearth bottom, and ash bucket is connected below the open type air distribution plate, and Ash valve is installed in the ash bucket below; The open type air distribution plate separates open type upper furnace and ash bucket; Said open type air distribution plate is made up of some wind-distributing pipes, along wind-distributing pipe a row or multi-row blast cap is housed circumferentially; One end of wind-distributing pipe links to each other with igniter, and the other end is provided with the maintenance cinerary device.
As further improvement of the present invention, said wind-distributing pipe axially is equipped with many air drafts cap by a determining deviation.
As further improvement of the present invention, said igniter is provided with wind inlet and torch oil gun.
As further improvement of the present invention, said wind-distributing pipe links to each other with igniter with air register through expansion joint.
As further improvement of the present invention, said wind-distributing pipe two ends are provided with igniter and maintenance cinerary device respectively.
As further improvement of the present invention, said open type burner hearth and ash bucket can adopt heat insulating construction or membrane wall cooling structure as required.
Compared with the prior art the present invention has the following advantages:
The present invention is simple in structure, compact, reasonable; Can discharge the iron wire that carries in the rubbish, iron nail etc. smoothly and twine blast cap or the bigger even block thing of particle easily, cloth wind is even, is difficult for coking or slagging scorification, reaches the purpose that prolongs garbage burning boiler continuous operating time and energy savings.
Description of drawings
Fig. 1 is a structural front view of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to view.
The specific embodiment
To combine accompanying drawing of the present invention that its enforcement is further described below:
Like Fig. 1～shown in Figure 2, comprise open type burner hearth 1, cyclone separator 2, cooling chamber 3, afterbody convection pass 4, external heat exchanger 5, high temperature superheater 6, low temperature superheater 7, economizer 8, auxiliary air preheater 9, wind air preheater 10, garbage feeding mouth 11, auxiliary fuel material inlet 12, open type air distribution plate 13, ash bucket 14, Ash valve 15, wind-distributing pipe 16, air draft cap 17, igniter 18, wind inlet 19, torch oil gun 20, expansion joint 21 and an air register 22.
The present invention is mainly by the open type burner hearth 1, cyclone separator 2, cooling chamber 3 and the afterbody convection pass 4 that connect successively; Described cyclone separator 2 lower ends connection external heat exchanger 5) other end of this external heat exchanger 5 connects open type burner hearth 1; Be provided with high temperature superheater 6 in the said external heat exchanger 5; Two Room, 3 fens front and back of said cooling chamber can be provided with heating surfaces such as low temperature superheater 7, economizer 8 as required; Said afterbody convection pass 4 can be provided with heating surfaces such as secondary wind air preheater 9, a wind air preheater 10 as required.
Described open type burner hearth 1 is provided with garbage feeding mouth 11 and auxiliary fuel material inlet 12; The bottom connects open type air distribution plate 13; Many wind-distributing pipes 16 are arranged in according to certain spacing and form open type air distribution plate 13 on the same horizontal plane, and open type burner hearth 1 top and ash bucket were opened in 14 minutes; Ash bucket 14 is connected below the open type air distribution plate 13, and Ash valve 15 is installed in ash bucket 14 belows; Open type air distribution plate 13 is made up of many wind-distributing pipes 16, circumferentially by a determining deviation a row or multi-row blast cap 17 is housed along wind-distributing pipe 16, axially by a determining deviation many air drafts cap 17 is housed; One end of wind-distributing pipe 16 links to each other with igniter 18, and igniter 18 is provided with wind inlet 19 and torch oil gun 20 etc., and the other end is provided with the maintenance cinerary device; Or wind-distributing pipe 16 two ends are equipped with igniter 18 and cinerary device; Described wind-distributing pipe links to each other with igniter 18 with air register 22 through expansion joint 21.
Described open type burner hearth 1 and ash bucket 14 can adopt heat insulating construction or membrane wall cooling structure as required
The operation principle of the present invention and the course of work:
After the preliminary treatment such as rubbish and the fragmentation of auxiliary fuel process, metal sorting; Get into 1 burning of open type burner hearth through garbage feeding mouth 11 and auxiliary fuel material inlet 12; (850～900 ℃ of the high-temperature flue gas that the burning back produces; Carry a large amount of uncompleted burned carbon particles) after upper furnace is further burnt heat release; Get into cyclone separator 2 through furnace outlet, realize separating of flue gas and material.Through the central tube entering cooling chamber 3 of " cleaning " flue gas after separating, get into afterbody convection pass 4 then until discharging out of the furnace from cyclone separator 2 tops.Said cooling chamber 3 can be provided with low temperature superheater 7 as required) economizer 8 heating surfaces such as grade; Said afterbody convection pass 4 can be provided with heating surfaces such as secondary wind air preheater 9, a wind air preheater 10 as required.
" returning charge ash " that separate from cyclone separator 2 gets into external heat exchanger 5 by the returning charge leg, carry out heat exchange with the high temperature superheater 6 that sets within it after, get back to open type burner hearth 1 through the returning charge inclined tube again and continue circulating combustion.
In the circulating combustion process, remove the thinner fly ash granule of part and get into cooling chamber 3 and afterbody convection current cigarette
Outside road 4 is discharged by corresponding cinerary device; Incombustible such as remainder larger particles lime-ash and iron wire, iron nail are all fallen on the open type air distribution plate 13; Get into ash bucket 14 from the space between the wind-distributing pipe 16; Discharge gradually through Ash valve 15, and pass through the height of recycle stock in the Ash valve 15 control open type burner hearths 1.
The burning required air is provided by first and second blower fan respectively.The air that primary air fan is seen off is after wind air preheater 10 preheatings; Get into igniter 18 from a wind inlet 19; Get into wind-distributing pipe 16 through air register 22 and expansion joint 21 then, get into open type burner hearth 1 through blast cap 17 at last, make the even fluidisation of material on the open type air distribution plate 13.Secondary wind gets into open type burner hearth 1 by the overfiren air port that open type burner hearth 1 middle and upper part differing heights is set after 9 preheatings of auxiliary air preheater, with the effect of aftercombustion required air and disturbance mixing.
When boiler startup, after high-temperature flue gas that torch oil gun 20 burnings produce and a wind of a wind inlet 19 mix in igniter 18, through getting into open hearth thorax 1 behind the above-mentioned path.
Claims (6)
1. an open type burner hearth refuse incinerator of circulating fluid bed comprises the open type burner hearth (1), cyclone separator (2), cooling chamber (3) and the afterbody convection pass (4) that connect successively; Said cyclone separator (2) lower end connects external heat exchanger (5), and the other end of said external heat exchanger (5) connects open type burner hearth (1); Be provided with high temperature superheater (6) in the said external heat exchanger (5); Described open type burner hearth (1) is provided with garbage feeding mouth (11) and auxiliary fuel material inlet (12), two Room before and after said cooling chamber (3) divides, indoor low temperature superheater (7), the economizer (8) of being provided with; Be provided with a secondary wind air preheater (9) and a wind air preheater (10) in the said afterbody convection pass (4); It is characterized in that: some wind-distributing pipes (16) are by forming open type air distribution plate (13) on the same horizontal plane of being arranged in of a determining deviation; Open type air distribution plate (13) is arranged on open type burner hearth (1) bottom; Ash bucket (14) is connected below the open type air distribution plate (13), and Ash valve (15) is installed in ash bucket (14) below; Open type air distribution plate (13) separates open type burner hearth (1) top and ash bucket (14); Said open type air distribution plate (13) is made up of some wind-distributing pipes (16), along wind-distributing pipe (16) a row or multi-row blast cap (17) is housed circumferentially; One end of wind-distributing pipe (16) links to each other with igniter (18), and the other end is provided with the maintenance cinerary device.
2. open type burner hearth refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that: said wind-distributing pipe (16) axially is equipped with many air drafts cap (17) by a determining deviation.
3. open type burner hearth refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that: said igniter (18) is provided with a wind inlet (19) and torch oil gun (20).
4. open type burner hearth refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that: said wind-distributing pipe (16) links to each other with igniter (18) with air register (22) through expansion joint (21).
5. open type burner hearth refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that: said wind-distributing pipe (16) two ends are provided with igniter (18) and maintenance cinerary device respectively.
6. open type burner hearth refuse incinerator of circulating fluid bed as claimed in claim 1 is characterized in that: said open type burner hearth (1) and ash bucket (14) adopt heat insulating construction or membrane wall cooling structure respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242467A CN102305406A (en) | 2011-08-23 | 2011-08-23 | Circulating fluid bed waste incineration boiler with open-type furnace chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110242467A CN102305406A (en) | 2011-08-23 | 2011-08-23 | Circulating fluid bed waste incineration boiler with open-type furnace chamber |
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| CN102305406A true CN102305406A (en) | 2012-01-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809150A (en) * | 2012-08-28 | 2012-12-05 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for discharging slags from circulating fluidized bed boiler based on external heat exchanger |
| CN105526583A (en) * | 2016-01-29 | 2016-04-27 | 东方电气集团东方锅炉股份有限公司 | Even air distributing system for external heat exchanger of supercritical circulating fluidized bed boiler |
| CN105605587A (en) * | 2015-11-29 | 2016-05-25 | 集美大学 | Waste incineration treatment system |
| CN106196036A (en) * | 2016-08-29 | 2016-12-07 | 江苏汇能锅炉有限公司 | A kind of CFBB material-returning device |
| CN109323266A (en) * | 2018-11-13 | 2019-02-12 | 浙江物华天宝能源环保有限公司 | A kind of tubular distributor suitable for fluidized combustion rubbish |
| CN109855089A (en) * | 2019-04-10 | 2019-06-07 | 南昌航空大学 | A kind of automatic returning charge ash exhauster of pulley-type |
| CN110454799A (en) * | 2019-08-13 | 2019-11-15 | 杭州翼兔网络科技有限公司 | A kind of garbage combustion device reducing dust |
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| EP0197577A1 (en) * | 1985-03-25 | 1986-10-15 | Esmil B.V. | Method of cleaning contaminated soil |
| JPH11241813A (en) * | 1998-02-25 | 1999-09-07 | Babcock Hitachi Kk | Deposit removing device |
| CN101187471A (en) * | 2007-06-27 | 2008-05-28 | 巩义市泰华机械厂 | Taper tube and ash returning pump and ash recombustion type circulated fluid bed combustion equipment |
| CN101713542A (en) * | 2009-12-30 | 2010-05-26 | 北京中科通用能源环保有限责任公司 | Refuse incinerator of circulating fluid bed for burning out ash by radiation |
| CN102116471A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院工程热物理研究所 | Device and method for recovering bottom slag heat of circulating fluidized bed boiler |
| CN202253668U (en) * | 2011-08-23 | 2012-05-30 | 无锡太湖锅炉有限公司 | Open type hearth circulating fluid bed waste incineration boiler |
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Patent Citations (6)
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| EP0197577A1 (en) * | 1985-03-25 | 1986-10-15 | Esmil B.V. | Method of cleaning contaminated soil |
| JPH11241813A (en) * | 1998-02-25 | 1999-09-07 | Babcock Hitachi Kk | Deposit removing device |
| CN101187471A (en) * | 2007-06-27 | 2008-05-28 | 巩义市泰华机械厂 | Taper tube and ash returning pump and ash recombustion type circulated fluid bed combustion equipment |
| CN101713542A (en) * | 2009-12-30 | 2010-05-26 | 北京中科通用能源环保有限责任公司 | Refuse incinerator of circulating fluid bed for burning out ash by radiation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809150A (en) * | 2012-08-28 | 2012-12-05 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for discharging slags from circulating fluidized bed boiler based on external heat exchanger |
| CN105605587A (en) * | 2015-11-29 | 2016-05-25 | 集美大学 | Waste incineration treatment system |
| CN105526583A (en) * | 2016-01-29 | 2016-04-27 | 东方电气集团东方锅炉股份有限公司 | Even air distributing system for external heat exchanger of supercritical circulating fluidized bed boiler |
| CN106196036A (en) * | 2016-08-29 | 2016-12-07 | 江苏汇能锅炉有限公司 | A kind of CFBB material-returning device |
| CN106196036B (en) * | 2016-08-29 | 2019-03-05 | 江苏汇能锅炉有限公司 | A kind of circulating fluidized bed boiler material-returning device |
| CN109323266A (en) * | 2018-11-13 | 2019-02-12 | 浙江物华天宝能源环保有限公司 | A kind of tubular distributor suitable for fluidized combustion rubbish |
| CN109855089A (en) * | 2019-04-10 | 2019-06-07 | 南昌航空大学 | A kind of automatic returning charge ash exhauster of pulley-type |
| CN109855089B (en) * | 2019-04-10 | 2024-03-15 | 南昌航空大学 | Pulley type automatic material returning and ash discharging device |
| CN110454799A (en) * | 2019-08-13 | 2019-11-15 | 杭州翼兔网络科技有限公司 | A kind of garbage combustion device reducing dust |
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Application publication date: 20120104 |