CN102734779A - Fixed grate type biomass boiler - Google Patents

Fixed grate type biomass boiler Download PDF

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Publication number
CN102734779A
CN102734779A CN2012101919264A CN201210191926A CN102734779A CN 102734779 A CN102734779 A CN 102734779A CN 2012101919264 A CN2012101919264 A CN 2012101919264A CN 201210191926 A CN201210191926 A CN 201210191926A CN 102734779 A CN102734779 A CN 102734779A
Authority
CN
China
Prior art keywords
water
fixed
cooled
grate
biomass boiler
Prior art date
Application number
CN2012101919264A
Other languages
Chinese (zh)
Inventor
顾利平
孙建涛
潘鸿杰
管亿
潘宇峰
张�浩
Original Assignee
江苏太湖锅炉股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏太湖锅炉股份有限公司 filed Critical 江苏太湖锅炉股份有限公司
Priority to CN2012101919264A priority Critical patent/CN102734779A/en
Publication of CN102734779A publication Critical patent/CN102734779A/en

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Abstract

The invention provides a fixed grate type biomass boiler. A tail dust removal structure of the fixed grate type biomass boiler is simple; the fixed grate type biomass boiler occupies a small area and has low land cost; a grate is guaranteed to normally operate in a proper temperature range; and the boiler is guaranteed to normally work. The fixed grate type biomass boiler comprises a hearth, an overheater, an economizer and an air preheater; and the hearth is sequentially connected with the overheater, the economizer and the air preheater. The fixed grate type biomass boiler is characterized in that the side part of the lower part of the hearth is provided with a feed inlet; a front wall and a rear wall of the hearth below the feed inlet are provided with secondary air ducts; the bottom of the hearth is provided with an obliquely downward fixed water-cooled grate; a heat resistance grate sheet of the fixed water-cooled grate is covered on a water-cooled supporting tube; the water-cooled supporting tube is communicated with the upper part of a water-cooled wall; the water-cooled wall is respectively communicated with an upper boiler barrel and a lower boiler barrel by convection banks; a cavity of the air preheater is communicated with a cavity body of a cyclone dust collector; and the integral cyclone dust collector is positioned right below the air preheater.

Description

Fixed grate formula biomass boiler
Technical field
The present invention relates to the technical field of biomass boiler structure, be specially fixed grate formula biomass boiler.
Background technology
Prior biological matter boiler, the dedusting structure of its afterbody is complicated, makes its floor space bigger, makes that the soil cost is higher; In addition, the temperature of the fire grate of prior biological matter boiler is too high, is prone to deform; And then influencing the normal operation of fire grate, boiler need overhaul, and makes the boiler cisco unity malfunction.
Summary of the invention
To the problems referred to above, the invention provides fixed grate formula biomass boiler, its afterbody dedusting structure is simple, floor space is little, the soil cost is low, and guarantees fire grate normally operation in suitable temperature range, guarantees the operate as normal of boiler.
Fixed grate formula biomass boiler; Its technical scheme is such: it comprises burner hearth, superheater, economizer, air preheater; Said burner hearth connects said superheater, economizer, air preheater in order, it is characterized in that: the below sidepiece of said burner hearth is provided with charging aperture, and front wall, the Hou Qiang of the said burner hearth of the below of said charging aperture are provided with secondary air channel; The bottom of said burner hearth is provided with the fixed water-cooled grate under oblique; The heat resistant furnace screening of said fixed water-cooled grate is covered on the water-cooled support column, and said water-cooled support column is communicated with the top water-cooling wall, and said water-cooling wall is communicated with upper drum, lower drum respectively through convection bank; The cavity of said air preheater is communicated with the cavity of cyclone dust collectors, the integral body of said cyclone dust collectors be positioned at said air preheater under.
It is further characterized in that:
The angle of inclination of said fixed water-cooled grate is 7 °~10 °, and its incline direction is towards the cinder notch that falls;
Said superheater is circumscribed with direct-contact desuperheater;
Said economizer is specially two-stage steel formula economizer.
After adopting structure of the present invention, the tail air preheater of boiler below is provided with cyclone dust collectors, and its afterbody dedusting structure is simple, floor space is little, the soil cost is low; The front wall of the said burner hearth of the below of charging aperture, Hou Qiang are provided with secondary air channel in addition, and the bottom of said burner hearth is provided with the fixed water-cooled grate under oblique, in the heat resistant furnace screening covering and water-cooled support column of said fixed water-cooled grate; Said water-cooled support column is communicated with the top water-cooling wall; Guarantee the cooling of fire grate segment, help fuel mix, fully burn; Guarantee fire grate normally operation in suitable temperature range, guarantee the operate as normal of boiler.
Description of drawings
Fig. 1 is a front view structural representation of the present invention.
The specific embodiment
See Fig. 1; It comprises burner hearth 1, superheater 2, economizer 3, air preheater 4; Said burner hearth 1 connects said superheater 2, economizer 3, air preheater 4 in order, and the below sidepiece of said burner hearth 1 is provided with charging aperture 5, and front wall, the Hou Qiang of the said burner hearth 1 of the below of said charging aperture 5 are provided with secondary air channel 6; The bottom of said burner hearth 1 is provided with the fixed water-cooled grate 7 under oblique; The heat resistant furnace screening 8 of said fixed water-cooled grate 7 is covered on the water-cooled support column 9, and said water-cooled support column 9 connection top water-cooling walls 10, said water-cooling wall logical 10 are crossed convection bank 11 and are communicated with upper drum 12, lower drum 13 respectively; The cavity of said air preheater 4 is communicated with the cavity of cyclone dust collectors 14, the integral body of said cyclone dust collectors 14 be positioned at said air preheater 4 under.The angle of inclination of said fixed water-cooled grate 7 is 7 °~10 °, and its incline direction is towards the cinder notch 15 that falls; Said superheater 2 is circumscribed with direct-contact desuperheater 16; Said economizer 3 is specially two-stage steel formula economizer.

Claims (4)

1. fixed grate formula biomass boiler; It comprises burner hearth, superheater, economizer, air preheater; Said burner hearth connects said superheater, economizer, air preheater in order, it is characterized in that: the below sidepiece of said burner hearth is provided with charging aperture, and front wall, the Hou Qiang of the said burner hearth of the below of said charging aperture are provided with secondary air channel; The bottom of said burner hearth is provided with the fixed water-cooled grate under oblique; The heat resistant furnace screening of said fixed water-cooled grate is covered on the water-cooled support column, and said water-cooled support column is communicated with the top water-cooling wall, and said water-cooling wall is communicated with upper drum, lower drum respectively through convection bank; The cavity of said air preheater is communicated with the cavity of cyclone dust collectors, the integral body of said cyclone dust collectors be positioned at said air preheater under.
2. fixed grate formula biomass boiler according to claim 1 is characterized in that: the angle of inclination of said fixed water-cooled grate is 7 °~10 °, and its incline direction is towards the cinder notch that falls.
3. fixed grate formula biomass boiler according to claim 1, it is characterized in that: said superheater is circumscribed with direct-contact desuperheater.
4. fixed grate formula biomass boiler according to claim 1 is characterized in that: said economizer is specially two-stage steel formula economizer.
CN2012101919264A 2012-06-12 2012-06-12 Fixed grate type biomass boiler CN102734779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101919264A CN102734779A (en) 2012-06-12 2012-06-12 Fixed grate type biomass boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101919264A CN102734779A (en) 2012-06-12 2012-06-12 Fixed grate type biomass boiler

Publications (1)

Publication Number Publication Date
CN102734779A true CN102734779A (en) 2012-10-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101919264A CN102734779A (en) 2012-06-12 2012-06-12 Fixed grate type biomass boiler

Country Status (1)

Country Link
CN (1) CN102734779A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103471122A (en) * 2013-08-30 2013-12-25 江苏太湖锅炉股份有限公司 Multi-tube dust remover inside boiler
CN103644561A (en) * 2013-11-11 2014-03-19 浙江中吉新能源有限公司 High-efficiency energy-saving biomass boiler system
CN104633631A (en) * 2013-11-14 2015-05-20 酒泉市汉鑫科技有限公司 Biomass boiler
CN105402720A (en) * 2015-11-12 2016-03-16 广西诚顺节能环保科技有限公司 Biomass gasification combustion environment-friendly boiler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301622A (en) * 1927-11-03 1928-12-06 John Laycock Bland Improvements in and relating to steam boilers
GB397446A (en) * 1932-06-11 1933-08-24 Ferdinand Graafen Improvements in furnace grates
CN2519128Y (en) * 2001-12-30 2002-10-30 武汉锅炉技术开发中心 Water-cooled grate
CN2755438Y (en) * 2004-10-28 2006-02-01 龙基电力有限公司 Boiler burner with biological substance fuel
CN201246733Y (en) * 2008-07-18 2009-05-27 北京国电龙源杭锅蓝琨能源工程技术有限公司 Angle pipe type biomass direct combustion boiler
CN201964387U (en) * 2011-01-07 2011-09-07 大连新东方锅炉制造有限公司 High-efficiency biomass-combusting electricity generating boiler
CN202647698U (en) * 2012-06-12 2013-01-02 江苏太湖锅炉股份有限公司 Fixed grate biomass boiler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301622A (en) * 1927-11-03 1928-12-06 John Laycock Bland Improvements in and relating to steam boilers
GB397446A (en) * 1932-06-11 1933-08-24 Ferdinand Graafen Improvements in furnace grates
CN2519128Y (en) * 2001-12-30 2002-10-30 武汉锅炉技术开发中心 Water-cooled grate
CN2755438Y (en) * 2004-10-28 2006-02-01 龙基电力有限公司 Boiler burner with biological substance fuel
CN201246733Y (en) * 2008-07-18 2009-05-27 北京国电龙源杭锅蓝琨能源工程技术有限公司 Angle pipe type biomass direct combustion boiler
CN201964387U (en) * 2011-01-07 2011-09-07 大连新东方锅炉制造有限公司 High-efficiency biomass-combusting electricity generating boiler
CN202647698U (en) * 2012-06-12 2013-01-02 江苏太湖锅炉股份有限公司 Fixed grate biomass boiler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103471122A (en) * 2013-08-30 2013-12-25 江苏太湖锅炉股份有限公司 Multi-tube dust remover inside boiler
CN103644561A (en) * 2013-11-11 2014-03-19 浙江中吉新能源有限公司 High-efficiency energy-saving biomass boiler system
CN104633631A (en) * 2013-11-14 2015-05-20 酒泉市汉鑫科技有限公司 Biomass boiler
CN105402720A (en) * 2015-11-12 2016-03-16 广西诚顺节能环保科技有限公司 Biomass gasification combustion environment-friendly boiler

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Application publication date: 20121017