CN204100229U - Offal fluidized-bed combustion boiler - Google Patents
Offal fluidized-bed combustion boiler Download PDFInfo
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- CN204100229U CN204100229U CN201420555405.7U CN201420555405U CN204100229U CN 204100229 U CN204100229 U CN 204100229U CN 201420555405 U CN201420555405 U CN 201420555405U CN 204100229 U CN204100229 U CN 204100229U
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- offal
- cyclone separator
- pipe
- feed pipe
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- 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
Abstract
The utility model discloses a kind of offal fluidized-bed combustion boiler, belong to Industrial Boiler; Aim to provide the boiler that a kind of sufficient combustion, not easily coking and blocking, scarfing cinder are fuel easily with offal.It comprises body of heater, cyclone separator and smoke exhaust pipe; Body of heater is formed by with main chamber (1) and subsidiary combustion chamber (35), and fire grate is made up of the some blast caps (27) being separately fixed at above-mentioned two bottom of combustion chamber; Two the isobaric air compartments be communicated with it by blast cap (27) are had, the first concentrated phase tank (18) and this two combustion chamber below two combustion chambers; Cyclone separator (4) is communicated with subsidiary combustion chamber (35), and material returning device is made up of the 3rd isobaric air compartment (32), blast cap (27), air intake arm (31), refeed line (26); There is the second concentrated phase tank (17) below of the 3rd isobaric air compartment (32).The utility model is long for burning time, and oxygen supply is sufficient, energy-conserving and environment-protective; It is a kind of boiler processing tobacco stem waste.
Description
Technical field
The utility model relates to a kind of boiler, particularly relates to a kind of boiler being main fuel with living beings such as offals.
Background technology
Offal, tobacco leaf powder, mould tobacco leaf of mixing is the discarded object produced in tobacco redrying production process, is the difficult problem always perplexing enterprise development.Usually adopt land-fill method process at present, not only processing cost is high, and wastes valuable biomass resource.If with offal the like waste for fuel, enterprise both can have been can be and provides redrying steam, and can reduce again the use amount of fossil fuel or coal, also can be business processes discarded object and opened up a new approach.
At present, usually adopt traditional biomass boiler to burn offal, belong to chain grate firing mode; Add combustion adjuvant after normally being pulverized by offal, then be pressed into granular fuel.And not only power consumption is large to process compressed granulate fuel, and offal easy coking and blocking heating surface, scarfing cinder difficulty in combustion; Also there is the burning defect such as insufficient simultaneously.
Summary of the invention
For the above-mentioned defect existed in prior art, the utility model aims to provide a kind of oxygen supply abundance, sufficient combustion, not easily coking and blocking, scarfing cinder offal fluidized-bed combustion boiler easily.
To achieve these goals, the utility model by the following technical solutions: it comprises the body of heater be communicated with smoke exhaust pipe by cyclone separator, the fire grate device be located in this body of heater; Described body of heater is made up of main chamber wall being fixed with cartridge and offal feed pipe, the subsidiary combustion chamber of ganging up with this main chamber top, and the top of this subsidiary combustion chamber is erect dividing plate; Described fire grate device is made up of the some blast caps being separately fixed at above-mentioned two bottom of combustion chamber; The below of above-mentioned two combustion chambers has respectively by the blast cap corresponding main isobaric air compartment that is communicated with and the isobaric air compartment of pair with it, and described two isobaric air compartments are communicated with blast pipe respectively; The the first concentrated phase tank be positioned at below body of heater is communicated with the bottom of above-mentioned two combustion chambers respectively; Cyclone separator with material returning device is communicated with subsidiary combustion chamber by fume pipe, described material returning device by the 3rd isobaric air compartment be fixed on bottom cyclone separator, be fixed on the some blast caps be communicated with on the 3rd isobaric air compartment and with cyclone separator, the air intake arm be communicated with blast pipe by the 3rd isobaric air compartment, the refeed line that main chamber is communicated with cyclone separator formed; The the second concentrated phase tank be communicated with it by material returning device ash releasing tube is had in the below of the 3rd isobaric air compartment.
In technique scheme, in order to ensure Thorough combustion, there are some downward-sloping the second blast pipes stretched in main chamber in the position higher than offal feed pipe; Downward-sloping the 3rd blast pipe stretched in this cyclone separator is had in the position bottom cyclone separator.
In order to the waste heat, the minimizing airborne release that make full use of flue gas pollute, on the basis of technique scheme, residual heat using device can also be increased between cyclone separator and smoke exhaust pipe; This residual heat using device is by the housing be communicated with cyclone separator top, be fixed on the convection bank in this housing, economizer and air preheater from top to bottom successively, by the cool air hose that this air preheater is communicated with blower fan, the warm-air pipe be communicated with blast pipe by this air preheater is formed; Second concentrated phase tank is communicated with the bottom of housing, and smoke exhaust pipe is communicated with the lower end of air preheater; First concentrated phase tank is communicated with main chamber, subsidiary combustion chamber respectively by slag cooler.
For the ease of slagging-off, on the basis of technique scheme, fuel gas pulse ash blower device can be set above convection bank, economizer and air preheater.
In order to also can normally run when ensureing offal fuel crunch, between offal feed pipe and cartridge, there is the downward-sloping water-coal-slurry feed pipe stretched in main chamber, this water-coal-slurry feed pipe is connected to compressed air hose.
Compared with the prior art, the utility model, owing to have employed technique scheme, have employed the two-stage combustion room ganged up, and substitutes traveling-grate stoker with the some blast caps in the bottom being located at each combustion chamber; Therefore be not only equivalent to the height increasing body of heater, extend the time of staying of fuel in burner hearth, but also can ensure that oxygen supply is sufficient, make burning more abundant; Thoroughly overcome and cause tar to hold the defect of blocking heating surface because burning insufficient.
Owing to have employed cyclone separator and material returning device, therefore can utilize cyclone separator that the unburnt solid particle carried in flue gas is carried out solid phase, gas phase separation, and by material returning device, unburnt fuel particle be returned burner hearth and burn away; Sufficient combustion can be ensured further, save fuel, can atmosphere pollution be reduced again.
Owing to have employed residual heat using device, therefore not only can improve the thermal efficiency of boiler, economize energy, and reduce airborne release pollution; Adopt concentrated phase tank to collect offal ashes then to can be used for producing organic potassic fertilizer.
Owing to adding fuel gas pulse ash blower device in residual heat using device, therefore, it is possible to impact heat energy, acoustic energy, form of thermal energy release energy, thus the dust stratification sticked to when making offal burn containing alkali metal composition on heating surface relaxes, comes off, reach and remove dust stratification object.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the I place enlarged drawing in Fig. 1;
Fig. 3 is the A-A sectional view in Fig. 1;
Fig. 4 is the B-B sectional view in Fig. 1.
In figure: main chamber 1, drum 2, fume pipe 3, cyclone separator 4, fuel gas pulse ash blower device 5, convection bank 6, housing 7, economizer 8, air preheater 9, warm-air pipe 10, material returning device ash releasing tube 11, smoke exhaust pipe 12, support 13, cool air hose 14, blower fan 15, flue-dust retainer 16, second concentrated phase tank 17, first concentrated phase tank 18, main ash releasing tube 19, main isobaric air compartment 20, cartridge 21, compressed air hose 22, water-coal-slurry feed pipe 23, offal feed pipe 24, second blast pipe 25, refeed line 26, blast cap 27, blast pipe 28, slag cooler 29, 3rd blast pipe 30, air intake arm 31, 3rd isobaric air compartment 32, secondary ash releasing tube 33, secondary isobaric air compartment 34, subsidiary combustion chamber 35, dividing plate 36.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in figures 1-4: body of heater is fixed on support 13, the top of this body of heater is fixed with the drum 2 collecting steam; Described body of heater is made up of the main chamber 1 wall being fixed with cartridge 21 and offal feed pipe 24, the subsidiary combustion chamber 35 of ganging up with this main chamber top, and dividing plate 36 is arranged at the top of this subsidiary combustion chamber.Above-mentioned two bottom of combustion chamber are fixed with some blast caps 27, and the below of above-mentioned two combustion chambers has respectively by the respective blast cap 27 corresponding main isobaric air compartment 20 that is communicated with and the isobaric air compartment 34 of pair with it, and this two isobaric air compartment is communicated with blast pipe 28 respectively.Have the first concentrated phase tank 18 in the below of body of heater, this first concentrated phase tank respectively by main ash releasing tube 19, secondary ash releasing tube 33 is corresponding with the bottom of main chamber 1, subsidiary combustion chamber 35 is communicated with.
Subsidiary combustion chamber 35 by fume pipe 3 and funnelform cyclone separator 4 tangentially or involute direction is crossing is with it communicated with, is fixed with material returning device in the bottom of cyclone separator 4.This material returning device by the 3rd isobaric air compartment 32 be fixed on bottom cyclone separator 4, be fixed on the 3rd isobaric air compartment and the some blast caps 27 be communicated with cyclone separator 4, the air intake arm 31 that the 3rd isobaric air compartment 32 is communicated with blast pipe 28, the refeed line 26 that main chamber 1 is communicated with cyclone separator 4 formed; The the second concentrated phase tank 17 be communicated with it by material returning device ash releasing tube 11 is had in the below of the 3rd isobaric air compartment 32.
In order to prolonging burning time, avoid fuel to be blowed floating levitating by air intake, have downward-sloping some second blast pipes 25 stretched in main chamber 1 in the position higher than offal feed pipe 24; In like manner, downward-sloping the 3rd blast pipe 30 stretched in this cyclone separator is had in the position bottom cyclone separator 4.
In order to make full use of the waste heat in flue gas, reducing pollution emissions and economize energy, between cyclone separator 4 and smoke exhaust pipe 12, residual heat using device being installed.This residual heat using device is by the housing 7 be communicated with cyclone separator 4 top, be fixed on the convection bank 6 in this housing, economizer 8 and air preheater 9 from top to bottom successively, by the cool air hose 14 that this air preheater is communicated with blower fan 15, the warm-air pipe 10 that this air preheater is communicated with blast pipe 28 is formed; Smoke exhaust pipe 12 is communicated with the lower end of air preheater 9.In order to collect the ashes in residual heat using device, there is the second concentrated phase tank 17 be communicated with it by flue-dust retainer 16 in the bottom of housing 7.In order to make full use of main chamber 1 and subsidiary combustion chamber 35 produce waste heat in ashes, the first concentrated phase tank 18 is communicated with main ash releasing tube 19, secondary ash releasing tube 33 respectively by slag cooler 29.
Containing alkali-metal dust stratification for the ease of removing to be adsorbed on the heating surfaces such as convection bank 6, economizer 8 and air preheater 9, above convection bank 6, economizer 8 and air preheater 9, being all fixed with fuel gas pulse ash blower device 5.
In order to ensure that boiler can normally run continuously, between offal feed pipe 24 and cartridge 21, there is the downward-sloping water-coal-slurry feed pipe 23 stretched in main chamber 1, this water-coal-slurry feed pipe is connected to compressed air hose 22.When offal short supply, add fuel by water-coal-slurry feed pipe 23.
Operation principle: during boiler operatiopn, first spreads the thick quartz sand of 300mm as bed material, then ignites with charcoal in the bottom of main chamber 1; Bed material temperature degree starts blower fan 15 when reaching 400 DEG C, and air enters air preheater 9 through cool air hose 14 and heats, then sends into main isobaric air compartment 20 and the isobaric air compartment 34 of pair by blast pipe 28, is then produced the air-flow that rotates up by blast cap 27 by quartz sand and fuel sulfuration; Supply to main chamber 1 offal pulverized when temperature reaches 700 DEG C.Offal fully contacts mixed combustion with air in main chamber 1, tangentially enter cyclone separator 4 by fume pipe 3 after flue gas burns in two-stage combustion room and make rotating operation, solid and gas separation is carried out in realization: the particle that flue gas carries because density is comparatively large with the contact internal walls of cyclone separator 4, friction, movement velocity declines gradually, and unburnt particle enters conical lower portion and returns main chamber 1 by refeed line 26 and burns further under gravity; The flue gas of lighter weight then upwards enters in housing 7, and after the heat exchange of convection bank 6, economizer 8 and air preheater 9, flue-gas temperature significantly reduces, and sends into dust-removing desulfurating apparatus (not shown) emission abatement by smoke exhaust pipe 12.
The lime-ash that fuel combustion produces enters the first concentrated phase tank 18 after being cooled by slag cooler 29, thus can ensure that production scene is cleaned.Second blast pipe 25 can make air-flow rolling disturbance, is formed and rotates updraft, thus increase the time of staying of fuel in 1, ensures that the Thorough combustion of offal burns.
Claims (7)
1. an offal fluidized-bed combustion boiler, comprises the body of heater be communicated with smoke exhaust pipe by cyclone separator, the fire grate device be located in this fire grate; It is characterized in that: described body of heater is made up of the main chamber (1) wall being fixed with cartridge (21) and offal feed pipe (24), the subsidiary combustion chamber (35) of ganging up with this main chamber top, and the top setting of this subsidiary combustion chamber has dividing plate (36); Described fire grate device is made up of the some blast caps (27) being separately fixed at above-mentioned two bottom of combustion chamber; The below of above-mentioned two combustion chambers has respectively by blast cap (27) the corresponding main isobaric air compartment (20) that is communicated with and pair equipressure air compartment (34) with it, and described two isobaric air compartments are communicated with blast pipe (28) respectively; The the first concentrated phase tank (18) be positioned at below body of heater is communicated with the bottom of above-mentioned two combustion chambers respectively; Cyclone separator (4) with material returning device is communicated with subsidiary combustion chamber (35) by fume pipe (3), described material returning device by be fixed on cyclone separator (4) bottom the 3rd isobaric air compartment (32), be fixed on the 3rd isobaric air compartment and the some blast caps (27) be communicated with cyclone separator (4), the air intake arm (31) that the 3rd isobaric air compartment (32) is communicated with blast pipe (28), the refeed line (26) that main chamber (1) is communicated with cyclone separator (4) formed; The the second concentrated phase tank (17) be communicated with it by material returning device ash releasing tube (11) is had in the below of the 3rd isobaric air compartment (32).
2. offal fluidized-bed combustion boiler according to claim 1, is characterized in that: have some downward-sloping the second blast pipes (25) stretched in main chamber (1) in the position higher than offal feed pipe (24); Downward-sloping the 3rd blast pipe (30) stretched in this cyclone separator is had in the position near cyclone separator (4) bottom.
3. offal fluidized-bed combustion boiler according to claim 1 and 2, it is characterized in that: heat utilization device of having a surplus between cyclone separator (4) and smoke exhaust pipe (12), this residual heat using device is by the housing (7) be communicated with cyclone separator (4) top, be fixed on the convection bank (6) in this housing from top to bottom successively, economizer (8) and air preheater (9), by the cool air hose (14) that this air preheater is communicated with blower fan (15), the warm-air pipe (10) that this air preheater is communicated with blast pipe (28) is formed, second concentrated phase tank (17) is communicated with the bottom of housing (7), and smoke exhaust pipe (12) is communicated with the lower end of air preheater (9), first concentrated phase tank (18) is communicated with main chamber (1), subsidiary combustion chamber (35) respectively by slag cooler (29).
4. offal fluidized-bed combustion boiler according to claim 3, is characterized in that: the top of convection bank (6), economizer (8) and air preheater (9) is all fixed with fuel gas pulse ash blower device (5).
5. offal fluidized-bed combustion boiler according to claim 1 and 2, it is characterized in that: between offal feed pipe (24) and cartridge (21), have the downward-sloping water-coal-slurry feed pipe (23) stretched in main chamber (1), this water-coal-slurry feed pipe is connected to compressed air hose (22).
6. offal fluidized-bed combustion boiler according to claim 3, it is characterized in that: between offal feed pipe (24) and cartridge (21), have the downward-sloping water-coal-slurry feed pipe (23) stretched in main chamber (1), this water-coal-slurry feed pipe is connected to compressed air hose (22).
7. offal fluidized-bed combustion boiler according to claim 4, it is characterized in that: between offal feed pipe (24) and cartridge (21), have the downward-sloping water-coal-slurry feed pipe (23) stretched in main chamber (1), this water-coal-slurry feed pipe is connected to compressed air hose (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555405.7U CN204100229U (en) | 2014-09-25 | 2014-09-25 | Offal fluidized-bed combustion boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555405.7U CN204100229U (en) | 2014-09-25 | 2014-09-25 | Offal fluidized-bed combustion boiler |
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| Publication Number | Publication Date |
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| CN204100229U true CN204100229U (en) | 2015-01-14 |
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| CN201420555405.7U Active CN204100229U (en) | 2014-09-25 | 2014-09-25 | Offal fluidized-bed combustion boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197322A (en) * | 2014-09-25 | 2014-12-10 | 贵州迪鑫工业设备工程有限公司 | Tobacco stem fluidized bed boiler |
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2014
- 2014-09-25 CN CN201420555405.7U patent/CN204100229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197322A (en) * | 2014-09-25 | 2014-12-10 | 贵州迪鑫工业设备工程有限公司 | Tobacco stem fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Benguo Inventor after: Cheng Yuanqiang Inventor after: Li Jianghong Inventor after: Liu Jinfeng Inventor after: Wei Chengzhong Inventor after: Qin Guangzhi Inventor after: Song Qingyong Inventor before: Luo Benguo Inventor before: Cheng Yuanqiang Inventor before: Li Jianghong Inventor before: Liu Jinfeng |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160629 Address after: 550002 Guizhou city of Guiyang province is our road No. 128 building 3 room apartment 7 thousand generation Patentee after: GUIZHOU DIXIN INDUSTRY EQUIPMENT ENGINEERING CO., LTD. Patentee after: Guizhou Tobacco Leaf Redrying Co., Ltd. Address before: 550002 Guizhou city of Guiyang province is our road No. 128 building 3 room apartment 7 thousand generation Patentee before: GUIZHOU DIXIN INDUSTRY EQUIPMENT ENGINEERING CO., LTD. |