CN103884009A - Biomass hot blast stove - Google Patents

Biomass hot blast stove Download PDF

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Publication number
CN103884009A
CN103884009A CN201410143680.2A CN201410143680A CN103884009A CN 103884009 A CN103884009 A CN 103884009A CN 201410143680 A CN201410143680 A CN 201410143680A CN 103884009 A CN103884009 A CN 103884009A
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CN
China
Prior art keywords
wind
cooling
blast stove
chimney
mouth
Prior art date
Application number
CN201410143680.2A
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Chinese (zh)
Other versions
CN103884009B (en
Inventor
黄威
王光辉
王德成
贺长彬
Original Assignee
包钢重菱锅炉制造有限公司
中国农业大学
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Application filed by 包钢重菱锅炉制造有限公司, 中国农业大学 filed Critical 包钢重菱锅炉制造有限公司
Priority to CN201410143680.2A priority Critical patent/CN103884009B/en
Publication of CN103884009A publication Critical patent/CN103884009A/en
Application granted granted Critical
Publication of CN103884009B publication Critical patent/CN103884009B/en

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Abstract

The invention discloses a biomass hot blast stove. The biomass hot blast stove comprises a hot blast stove body and an emergency vent chimney (12). The hot blast stove body comprises a charging port (3), a fire grate (2), an ash pit (1), a front combustor (5), a rear combustor (10), a primary settling chamber (8), a primary air-cooled beam (6), a secondary air-cooled beam (9) and a smoke window (7). The emergency vent chimney (12) comprises a flame retarding plate (14), a tertiary settling chamber (16), a tertiary air-cooled port (17), an emergency vent chimney outlet (15) and an emergency vent smoke outlet (13). The upper portion of the front combustor (5) is communicated with the upper portion of the primary settling chamber (8) through the smoke window (7). The lower portion of the rear combustor (10) is communicated with the lower portion of the primary settling chamber (8). The emergency vent chimney (12) is connected with the rear combustor (10). High-temperature smoke produced by the front combustor (5) in the burning process flows in the hot blast stove body circuitously. Through the biomass hot blast stove, secondary combustion is achieved, fuel can be fully combusted, the thermal efficiency is high, and the pollution is little.

Description

A kind of biomass thermal wind furnace
Technical field
The invention belongs to combustion apparatus field, be specifically related to a kind of biomass thermal wind furnace.
Background technology
Biomass molding fuel briquetting is that living beings are produced through collection, fragmentation, oven dry, Profile procoess.In production process, a key problem in technology of raw material stoving is exactly the water content of its raw material will be reduced to 8%~12%.General drying means is the direct heating, drying biomass material of hot blast that utilizes biomass thermal wind furnace to produce at present.Present stage, the most of biomass block that adopts of China's biomass thermal wind furnace is as fuel.And biomass block is varied, generally there is the features such as content of ashes is high, burning is rapid, fuel value is low, easy coking.So, improving efficiency of combustion, fully dedusting, reduction are two indexs that the biological combustion technology of development must reach to the pollution of environment.At present, hand burns biomass fuel in biomass stove can not completing combustion, dedusting is insufficient, export unstable, traditional hot-blast stove adopts the method for logical natural wind under fire grate, and efficiency of combustion is low, and damage ratio is more serious.
Summary of the invention
For the problems referred to above, the object of the invention is to provide a kind of biomass thermal wind furnace, realize fuel-staged combustion, fuel continuously, evenly supply with, the hot blast temperature of generation is adjustable, burning thoroughly, Multistage settling, the little target of pollution.
The object of the invention is to be achieved through the following technical solutions:
A kind of biomass thermal wind furnace, comprises hot-blast stove body and the chimney 12 of promptly releasing, wherein:
Hot-blast stove body comprises charge door 3, fire grate 2, front combustion chamber 5, after-burner 10, first grade subsides chamber 8, first cooling by wind beam 6, second wind cooling beam 9, smokestack 7;
Fire grate 2 is positioned at 5 bottoms, front combustion chamber, and charge door 3 is positioned at hot-blast stove body left side, fire grate 2 tops;
Front combustion chamber 5 comprises front combustion chamber, face arch 4, rear arch 11 and first cooling by wind beam 6, and face arch 4 is positioned at the left side of 5 inside, front combustion chamber, and the lower arch face tilt of face arch 4 is horizontal by certain angle; Rear arch 11 is positioned at fire grate 2 tops, is connected with first cooling by wind beam 6, and smokestack 7 is connected with first cooling by wind beam 6;
After-burner 10 comprises after-combustion chamber and second wind cooling beam 9, and second wind cooling beam 9 separates first grade subsides chamber 8 and after-burner 10 tops;
Front combustion chamber 5 is interconnected by smokestack 7 on top with first grade subsides chamber 8, and after-burner 10 is interconnected in bottom with first grade subsides chamber 8, and the chimney 12 of promptly releasing is connected with after-burner 10;
The chimney 12 of promptly releasing is positioned at hot-blast stove body right side, comprise flame-retardant board 14, three grades of expansion chambers 16, cold mouthful 17 of tertiary air, promptly release chimney breast 15 and the mouth 13 of promptly releasing, flame-retardant board 14 is positioned at chimney 12 inside of promptly releasing, three grades of expansion chambers 16 are positioned at flame-retardant board 14 left sides, tertiary air is positioned at flame-retardant board 14 right sides for cold mouthful 17, the chimney breast 15 of promptly releasing is arranged in cold mouthful of 17 homonymies of tertiary air, and the mouth 13 of promptly releasing is positioned at chimney 12 upper ends of promptly releasing.
First cooling by wind beam 6 is provided with first cooling by wind mouth 18, and first cooling by wind mouth 18 opening directions are relative with face arch 11, and first cooling by wind beam 6 is connected with external blower by valve.
Second wind cooling beam 9 is provided with second wind cooling mouth 19, and second wind cooling mouth 19 opening directions are contrary with first cooling by wind mouth 18 opening directions, and second wind cooling beam 9 is connected with external blower by valve.
Tertiary air is connected with external blower by valve for cold mouthful 17.
Fire grate 2 is traveling-grate stoker.
Also comprise ashcan 1, it is positioned at fire grate 2 bottoms.
Beneficial effect of the present invention is:
1, change the hot-blast stove only with single chamber structure in the past, be arranged to realize the grate furnace structure of secondary firing.
2,, by realizing secondary firing, make that fuel combustion is abundant, the thermal efficiency is high.
3, the high-temperature flue gas producing is realized to Multistage settling, finally become clean hot blast, discharge pollutants few.
4, the hot blast temperature, the air quantity that produce are adjustable.
5, compact conformation, reasonable, easy and transportation and Fast Installation.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of a kind of biomass thermal wind furnace of the present invention;
Fig. 2 is in a kind of biomass thermal wind furnace of the present invention, the partial enlarged drawing of first cooling by wind beam and second wind cooling beam.
Reference numeral:
1 ashcan 2 fire grate 3 charge doors
The 4 front combustion chamber of face arch 56 first cooling by wind beams
7 smokestack 8 first grade subsides chamber 9 second wind cooling beams
10 after-burner 11 rear arches 12 chimney of promptly releasing
13 mouth 14 flame-retardant boards 15 chimney breasts of promptly releasing of promptly releasing
Cold mouthful of 18 first cooling by wind mouths of 16 3 grades of expansion chamber 17 tertiary airs
19 second wind cooling mouths
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
A kind of biomass thermal wind furnace, comprise hot-blast stove body and the chimney 12 of promptly releasing, wherein, hot-blast stove body is preferably cuboid, comprises charge door 3, fire grate 2, ashcan 1, front combustion chamber 5, after-burner 10, first grade subsides chamber 8, first cooling by wind beam 6, second wind cooling beam 9, smokestack 7.The chimney 12 of promptly releasing is preferably cylindrical shape, comprises flame-retardant board 14, three grades of expansion chambers 16, cold mouthful 17 of tertiary air, promptly release chimney breast 15, the urgent mouth 13 of releasing.
First cooling by wind beam 6 is provided with first cooling by wind mouth 18, and second wind cooling beam 9 is provided with second wind cooling mouth 19, is connected, for supplementing air by valve with external blower; Tertiary air is connected with external blower by valve for cold mouthful 17, for regulating hot blast temperature and air quantity; Front combustion chamber 5 is interconnected by smokestack 7 on top with first grade subsides chamber 8; After-burner 10 is interconnected in bottom with first grade subsides chamber 8; The chimney 12 of promptly releasing is connected with after-burner 10; The high-temperature flue gas that 5 burnings of front combustion chamber produce tortuous flowing in hot-blast stove body.
Ashcan 1 is positioned at fire grate 2 bottoms, for collecting the ashes after fuel combustion.
Fire grate 2 is traveling-grate stoker, is positioned at the bottom of the front combustion chamber 5 of hot-blast stove body, burns for feed.
Charge door 3 is positioned at hot-blast stove body left side, fire grate 2 tops, for charging.
Front combustion chamber 5 comprises front combustion chamber, face arch 4, rear arch 11 and first cooling by wind beam 6, front combustion chamber 5 is spaced from each other with after-burner 10, biomass fuel carries out one-level burning in front combustion chamber 5, and the high-temperature flue gas of generation carries out secondary firing in after-burner 10.
After-burner 10 comprises after-combustion chamber and second wind cooling beam 9, and to realize high-temperature flue gas secondary firing and to be delivered to the chimney 12 of promptly releasing, after-burner 10 has the effect of secondary sedimentation to the dust in high-temperature flue gas simultaneously.
First grade subsides chamber 8 is communicated with front combustion chamber 5 by smokestack 7, with sedimentation dust.
Face arch 4 is positioned at the left side of 5 inside, front combustion chamber, and lower arch face tilt, horizontal by certain angle, coordinates with first cooling by wind beam 6 and makes the high-temperature flue gas that burning produces form circulation.
Rear arch 11 is positioned at fire grate 2 tops, is connected with first cooling by wind beam 6, after-burner 10 and first grade subsides chamber 9 are separated with front combustion chamber 5, meanwhile, to biomass fuel preheating.
First cooling by wind beam 6 is connected with rear arch 11, and first cooling by wind beam 6 is provided with first cooling by wind mouth 18, and first cooling by wind mouth 18 opening directions are relative with face arch 11, and first cooling by wind beam 6 is connected with external blower by valve, to supplement air.
Second wind cooling beam 9 separates first grade subsides chamber 8 and after-burner 10 tops, second wind cooling beam 9 is provided with second wind cooling mouth 19, second wind cooling mouth 19 opening directions are contrary with first cooling by wind mouth 18 opening directions, and second wind cooling beam 9 is connected with external blower by valve, to supplement air.
Smokestack 7 is connected with first cooling by wind beam 6, the high-temperature flue gas producing with the front combustion chamber 5 of circulating.
Flame-retardant board 14 is positioned at chimney 12 inside of promptly releasing, to remove Mars and dust.
Three grades of expansion chambers 16 are positioned at the left inside side of flame-retardant board 14, with sedimentation dust.
Tertiary air cold mouthfuls 17 is positioned at flame-retardant board 14 right sides, to regulate temperature and the air quantity of high-temperature flue gas of the chimney breast 15 of promptly releasing.
The chimney breast 15 of promptly releasing is arranged in cold mouthful of 17 homonymies of tertiary air, to supply with the hot blast of suitable temperature to other equipment.
The mouth 13 of promptly releasing is positioned at chimney 12 upper ends of promptly releasing, and hot-blast stove is in case of emergency stopped other equipment hot wind supplies, and the hot blast that hot-blast stove is produced is discharged to the external world by the mouth 13 of promptly releasing, and plays safety for wind action.
Hot-blast stove outside is furnished with air-introduced machine and air blast, and air-introduced machine makes to realize micro-negative-pressure firing in combustion chamber, and air blast is connected for cold mouthful 17 by valve and first cooling by wind beam 6, second wind cooling beam 9 and tertiary air, to supplement air.
When work, biomass block fuel is thrown on fire grate 2 through charge door 3, fuel is along with burning in the front combustion chamber 5 of moving into of fire grate 2, in front combustion chamber 5, face arch 4 and rear arch 11 temperature after by last fuel combustion is carried out preheating to fuel, air blast by first cooling by wind beam 6 and 18 pairs of front combustion chambers of first cooling by wind mouth to wind, fuel combustion, produce high-temperature flue gas, high-temperature flue gas enters first grade subsides chamber 8 through smokestack 7, first grade subsides chamber 8 make in high-temperature flue gas with progressively sedimentation of particle dust, then high-temperature flue gas enters after-burner 10 along rear arch 11, air blast is given wind by second wind cooling beam 9 and 19 pairs of after-burners of second wind cooling mouth 10, unburned naked light secondary is fully burnt, when burning, after-burner 10 in high-temperature flue gas with particle dust carry out secondary settlement, form cleaner hot blast, enter the chimney 12 of promptly releasing, remove Mars and the dust in hot blast by flame-retardant board 14, while hot blast enters three grades of expansion chambers 16 and again carries out sedimentation dedusting, regulate hot blast temperature and air quantity for cold mouthful 17 by tertiary air, reach the hot blast that user requires, by promptly releasing, chimney breast 15 is supplied with other equipment, for user.Wherein, while there is emergency, can stop the hot wind supply to user by the mouth 13 of promptly releasing, the hot blast that hot-blast stove is produced is discharged to the external world by the mouth 13 of promptly releasing, and plays safety for wind action.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (6)

1. a biomass thermal wind furnace, is characterized in that: it comprises hot-blast stove body and the chimney (12) of promptly releasing, wherein:
Hot-blast stove body comprises charge door (3), fire grate (2), front combustion chamber (5), after-burner (10), first grade subsides chamber (8), first cooling by wind beam (6), second wind cooling beam (9), smokestack (7);
Fire grate (2) is positioned at bottom, front combustion chamber (5), and charge door (3) is positioned at hot-blast stove body left side, fire grate (2) top;
Front combustion chamber (5) comprises front combustion chamber, face arch (4), rear arch (11) and first cooling by wind beam (6), and face arch (4) is positioned at inner left side, front combustion chamber (5), and the lower arch face tilt of face arch (4) is horizontal by certain angle; Rear arch (11) is positioned at fire grate (2) top, is connected with first cooling by wind beam (6), and smokestack (7) is connected with first cooling by wind beam (6);
After-burner (10) comprises after-combustion chamber and second wind cooling beam (9), and second wind cooling beam (9) separates first grade subsides chamber (8) and after-burner (10) top;
Front combustion chamber (5) is interconnected by smokestack (7) on top with first grade subsides chamber (8), and after-burner (10) is interconnected in bottom with first grade subsides chamber (8), and the chimney of promptly releasing (12) is connected with after-burner (10);
The chimney (12) of promptly releasing is positioned at hot-blast stove body right side, comprise flame-retardant board (14), three grades of expansion chambers (16), tertiary air cold mouthful (17), promptly release chimney breast (15) and the mouth (13) of promptly releasing, flame-retardant board (14) is positioned at the chimney of promptly releasing (12) inside, three grades of expansion chambers (16) are positioned at flame-retardant board (14) left side, tertiary air cold mouthful (17) is positioned at flame-retardant board (14) right side, the chimney breast (15) of promptly releasing is arranged in cold mouthful of (17) homonymy of tertiary air, and the mouth (13) of promptly releasing is positioned at the chimney of promptly releasing (12) upper end.
2. a kind of biomass thermal wind furnace as claimed in claim 1, it is characterized in that: first cooling by wind beam (6) is provided with first cooling by wind mouth (18), first cooling by wind mouth (18) opening direction is relative with face arch (11), and first cooling by wind beam (6) is connected with external blower by valve.
3. a kind of biomass thermal wind furnace as claimed in claim 2, it is characterized in that: second wind cooling beam (9) is provided with second wind cooling mouth (19), second wind cooling mouth (19) opening direction is contrary with first cooling by wind mouth (18) opening direction, and second wind cooling beam (9) is connected with external blower by valve.
4. a kind of biomass thermal wind furnace as claimed in claim 1, is characterized in that: tertiary air cold mouthful (17) is connected with external blower by valve.
5. a kind of biomass thermal wind furnace as claimed in claim 1, is characterized in that: fire grate (2) is traveling-grate stoker.
6. a kind of biomass thermal wind furnace as claimed in claim 1, is characterized in that: also comprise ashcan (1), it is positioned at fire grate (2) bottom.
CN201410143680.2A 2014-04-11 2014-04-11 A kind of biomass thermal wind furnace CN103884009B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410143680.2A CN103884009B (en) 2014-04-11 2014-04-11 A kind of biomass thermal wind furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410143680.2A CN103884009B (en) 2014-04-11 2014-04-11 A kind of biomass thermal wind furnace

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CN103884009A true CN103884009A (en) 2014-06-25
CN103884009B CN103884009B (en) 2016-03-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104654277A (en) * 2015-02-03 2015-05-27 杨俊栋 Chain plate grate biomass particle combustion boiler
CN105091551A (en) * 2015-08-30 2015-11-25 汝州春秋生物质能源机电设备有限公司 Biomass briquette hot blast heater of grain drying machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2285867Y (en) * 1996-10-16 1998-07-08 高克让 Steam and heat transfer oil boiler
US6067916A (en) * 1996-12-03 2000-05-30 Martin Gmbh Fur Umwelt- Und Energietechnik Process and device for producing and utilizing gas from waste materials
CN2479371Y (en) * 2001-05-28 2002-02-27 武绍之 Medical refuse incierator using reciprocating grate and S-shape hearth
CN101818891A (en) * 2010-04-20 2010-09-01 浙江金锅锅炉有限公司 Industrial boiler for burning bio-briquettes
CN101986035A (en) * 2010-12-10 2011-03-16 常州市三信环保设备有限公司 Hearth of household garbage incinerator
CN202452516U (en) * 2012-06-24 2012-09-26 湘潭锅炉有限责任公司 Secondary air inlet biomass boiler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2285867Y (en) * 1996-10-16 1998-07-08 高克让 Steam and heat transfer oil boiler
US6067916A (en) * 1996-12-03 2000-05-30 Martin Gmbh Fur Umwelt- Und Energietechnik Process and device for producing and utilizing gas from waste materials
CN2479371Y (en) * 2001-05-28 2002-02-27 武绍之 Medical refuse incierator using reciprocating grate and S-shape hearth
CN101818891A (en) * 2010-04-20 2010-09-01 浙江金锅锅炉有限公司 Industrial boiler for burning bio-briquettes
CN101986035A (en) * 2010-12-10 2011-03-16 常州市三信环保设备有限公司 Hearth of household garbage incinerator
CN202452516U (en) * 2012-06-24 2012-09-26 湘潭锅炉有限责任公司 Secondary air inlet biomass boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104654277A (en) * 2015-02-03 2015-05-27 杨俊栋 Chain plate grate biomass particle combustion boiler
CN105091551A (en) * 2015-08-30 2015-11-25 汝州春秋生物质能源机电设备有限公司 Biomass briquette hot blast heater of grain drying machine

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