CN105402720A - Biomass gasification combustion environment-friendly boiler - Google Patents
Biomass gasification combustion environment-friendly boiler Download PDFInfo
- Publication number
- CN105402720A CN105402720A CN201510771018.6A CN201510771018A CN105402720A CN 105402720 A CN105402720 A CN 105402720A CN 201510771018 A CN201510771018 A CN 201510771018A CN 105402720 A CN105402720 A CN 105402720A
- Authority
- CN
- China
- Prior art keywords
- water
- water cooling
- boiler
- tube
- biomass gasification
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Gasification And Melting Of Waste (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a biomass gasification combustion environment-friendly boiler. The biomass gasification combustion environment-friendly boiler comprises a boiler barrel, a water cooling system, a feeding opening, a secondary air pipe, an ash discharging device, a smoke outlet, a collection box, a supporting seat and a heat preservation layer. The whole boiler is defined by the water cooling system and is divided into a gasification chamber, a burning-out chamber and a tail flue; the water cooling system is composed of the boiler barrel, the collection box, a water cooling pipe, flat steel, a steam guide pipe and a descending pipe; and the water cooling pipe, the steam guide pipe and the descending pipe penetrate the boiler barrel and the collection box to form a whole body in a welding manner, and a film type wall is formed by welding the water cooling pipe and the flat steel. The combustion temperature of the boiler is low, high-temperature coking is prevented, and the production amount of NOx is reduced; the smoke exhausting concentration is low; the heat preservation and sealing are good; running is stable; and the boiler is energy-saving and environment-friendly.
Description
Technical field
The present invention relates to a kind of biomass gasification fired environment-protection boiler, belong to biomass combustion and heat transmission equipment.
Background technology
Traditional biomass boiler, adopts coal-fired combustion equipment (fixed grate, traveling-grate stoker, reciprocal grate, recirculating fluidized bed etc.) to carry out direct combustion usually, and direct-fired biomass boiler, because ignition temperature is high, exists coking, flue dust and NO
xinitial ejection concentration is high, it is bad to seal and be incubated, problems such as running cigarette of easily leaking out.
Summary of the invention
The object of the invention is to solve above-mentioned Problems existing, and provide a kind of gasification of biomass environment-protection boiler, gasification of biomass, burning and heat exchange all complete at boiler internal, and boiler surrounding is surrounded by membrane wall.By low-temperature burning after gasification of biomass, efficiently avoid high-temperature coking and reduce flue dust and NO
xinitial ejection concentration, make boiler operatiopn stablize, energy-conserving and environment-protective.
The present invention is achieved through the following technical solutions:
A kind of biomass gasification fired environment-protection boiler, comprise drum, water-cooling system, charging aperture, secondary air channel, ash exhauster, outlet flue, header, supporting seat, heat-insulation layer, surrounded by water-cooling system in whole stove, be divided into vaporizer, secondary furnace and back-end ductwork, described water-cooling system is made up of drum, header, water cooling tube, band steel, steam guiding tube, down-comer, water cooling tube, steam guiding tube, down-comer run through drum and header respectively and are welded into entirety, and water cooling tube and band steel are welded into membrane wall; Described charging aperture is positioned at outside vaporizer, is welded on water cooling tube; Described secondary air channel is positioned at below charging aperture, is welded on water cooling tube; Be water-cooled grate bottom described vaporizer, be welded by part water cooling tube and fire grate segment; Described ash exhauster is positioned at below water-cooled grate, is made up of revolution ash ejector, spiral tapping machine, supporting seat, transmission device; Described revolution ash ejector is formed by connecting through screw by axle a and rake teeth, and spiral tapping machine is welded by axle b and flight; Described heat-insulation layer is covered in water-cooling system outer surface.
Described water-cooled grate is tilting with angle [alpha] by water cooling tube, °-30 °, α=20, fire grate segment and water cooling tube angle are β angle, °-10 °, β=5, each fire grate segment forms gap, make wind blow to fuel by gap and to jet lime-ash downwards, thus lime-ash is dropped on revolution ash ejector automatically discharged by spiral tapping machine;
It is good that described vaporizer, secondary furnace, back-end ductwork surround cooling condition by water-cooling system, and ignition temperature is low, prevents high-temperature coking and reduce NO
xgrowing amount;
Described back-end ductwork is arranged on below drum, inside is provided with extended surface tube row, be made up of fin tubular type coiled pipe (also can be substituted by light pipe), run through with header and weld, the high-temperature flue gas produced after secondary furnace burning is discharged outside boiler through exhaust opening after arranging abundant absorbing and cooling temperature by back-end ductwork and extended surface tube.
The present invention compared with prior art, has the following advantages: ignition temperature is low, prevents high-temperature coking and reduces NO
xgrowing amount; Smoke dust discharge concentration is low; Insulation and good seal; Stable; Energy-conserving and environment-protective.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Fig. 1 makes a living continuous gasification of substances rich environment-protection boiler assembly figure:
Fig. 2 is the cross sectional plan view of Fig. 1.
Fig. 3 is water-cooled grate structure and connection layout.
Fig. 4 is that back-end surfaces arranges schematic diagram.
Fig. 5 is ash exhauster sectional view.
Fig. 6 is the front view of Fig. 1.
Fig. 7 is the rearview of Fig. 1.
In figure: 1, drum; 2, water-cooling system; 3, charging aperture; 4, secondary air channel; 5, water-cooled grate; 6, fire grate segment; 7, ash ejector is turned round; 8, header; 9, supporting seat; 10: spiral tapping machine; 11, ash exhauster; 12, vaporizer; 13, heat-insulation layer; 14, secondary furnace; 15, back-end ductwork; 16, extended surface tube row; 17, outlet flue; 18, water cooling tube; 19, transmission device; 20, axle a; 21, rake teeth; 22, axle b; 23, flight; 24, band steel; 25, fire grate segment; 26, steam guiding tube, runs through with drum 1 and header 8 and welds; 27: down-comer, run through with drum 1 and header 8 and weld.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment
Biomass material enters vaporizer 12 from charging aperture 3, drops on burning on water-cooled grate 5 and fully discharges fugitive constituent, the CO that burning produces
2cO is reduced in vaporizer 12, CO, fugitive constituent are lighted after vaporizer 12 top mixes with Secondary Air, enter secondary furnace 14 to burn completely, flue gas is arranged after 16 heat exchange coolings through back-end ductwork 15 and extended surface tube, discharge outside boiler by outlet flue 17, and the lime-ash produced after fuel gasification, automatically discharged out of the furnace continuously by revolution ash ejector 7 and spiral tapping machine 10
In above-described embodiment, water-cooled grate 5 is made up of fire grate segment 6 and water cooling tube 18, and fire grate segment 6 and water cooling tube 18 angle 5 °-10 °, form gap between each fire grate segment, the First air of air compartment to fuel air feed and lime-ash of jetting downwards through gap, makes lime-ash drop on revolution ash ejector 7 and automatically discharges.The extended surface tube row arranged in back-end ductwork, according to capacity and the tail flue gas temperature deployment tube row of boiler, pipe row be made up of extended surface tube, and flue gas, after back-end ductwork and extended surface tube row heat exchange cooling, is discharged outside boiler by exhaust opening.
Living beings are gasification, and combustion on water-cooled grate, not only reduce ash original discharge concentration, and due to ignition temperature low, prevent high-temperature coking, reduce NO
xgrowing amount, environment-friendly high-efficiency.The lime-ash that burning produces discharges boiler by turning round on ash ejector and spiral tapping machine, does not affect the burning of fuel on water-cooled grate and gasification, boiler energy continuous and stable is run.
Claims (6)
1. a biomass gasification fired environment-protection boiler, it is characterized in that comprising drum, water-cooling system, charging aperture, secondary air channel, ash exhauster, outlet flue, header, supporting seat, heat-insulation layer, surrounded by water-cooling system in whole stove, be divided into vaporizer, secondary furnace and back-end ductwork, described water-cooling system is made up of drum, header, water cooling tube, band steel, steam guiding tube, down-comer, water cooling tube, steam guiding tube, down-comer run through drum and header respectively and are welded into entirety, and water cooling tube and band steel are welded into membrane wall; Described charging aperture is positioned at outside vaporizer, is welded on water cooling tube; Described secondary air channel is positioned at below charging aperture, is welded on water cooling tube; Be water-cooled grate bottom described vaporizer, be welded by part water cooling tube and fire grate segment; Described ash exhauster is positioned at below water-cooled grate, is made up of revolution ash ejector, spiral tapping machine, supporting seat, transmission device; Described revolution ash ejector is formed by connecting through screw by axle a and rake teeth, and spiral tapping machine is welded by axle b and flight; Described heat-insulation layer is covered in water-cooling system outer surface.
2. biomass gasification fired environment-protection boiler according to claim 1, it is characterized in that described water-cooled grate is tilting with angle [alpha] by water cooling tube, °-30 °, α=20, fire grate segment and water cooling tube angle are β angle, °-10 °, β=5, each fire grate segment forms gap, makes wind can blow to fuel and lime-ash of jetting downwards by gap, thus lime-ash is dropped on revolution ash ejector automatically discharged by spiral tapping machine.
3. biomass gasification fired environment-protection boiler according to claim 1 and 2, it is characterized in that described vaporizer, secondary furnace, back-end ductwork are surrounded by water-cooling system, cooling condition is good, and ignition temperature is low, prevents high-temperature coking and reduces NO
xgrowing amount.
4. biomass gasification fired environment-protection boiler according to claim 1 and 2, it is characterized in that described back-end ductwork is arranged on below drum, inside is provided with extended surface tube row, be made up of fin tubular type coiled pipe, run through with header and weld, the high-temperature flue gas produced after secondary furnace burning is discharged outside boiler through exhaust opening after arranging abundant absorbing and cooling temperature by back-end ductwork and extended surface tube.
5. biomass gasification fired environment-protection boiler according to claim 1 and 2, is characterized in that: boiler is all surrounded by water-cooling system and forms, and insulation and good seal, do not leak out race cigarette.
6. biomass gasification fired environment-protection boiler according to claim 4, is characterized in that described extended surface tube is arranged available light pipe and substituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510771018.6A CN105402720A (en) | 2015-11-12 | 2015-11-12 | Biomass gasification combustion environment-friendly boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510771018.6A CN105402720A (en) | 2015-11-12 | 2015-11-12 | Biomass gasification combustion environment-friendly boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402720A true CN105402720A (en) | 2016-03-16 |
Family
ID=55468374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510771018.6A Pending CN105402720A (en) | 2015-11-12 | 2015-11-12 | Biomass gasification combustion environment-friendly boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084386A (en) * | 2017-03-16 | 2017-08-22 | 广东正鹏生物质能源科技有限公司 | A kind of integrated gasification fired boiler system of biomass |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021334A (en) * | 2007-03-16 | 2007-08-22 | 合肥工业大学 | Internal-combustion heating type biomass gasification furnace |
| CN101608795A (en) * | 2008-11-20 | 2009-12-23 | 无锡锡东能源科技有限公司 | A kind of modified water-cooling spiral tapping machine |
| CN101956989A (en) * | 2010-06-09 | 2011-01-26 | 广州迪森热能技术股份有限公司 | Spiral deslagging device of biomass boiler |
| CN102261648A (en) * | 2011-06-30 | 2011-11-30 | 黑龙江长志机械电器制造有限公司 | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof |
| CN102734779A (en) * | 2012-06-12 | 2012-10-17 | 江苏太湖锅炉股份有限公司 | Fixed grate type biomass boiler |
| CN205119022U (en) * | 2015-11-12 | 2016-03-30 | 广西诚顺节能环保科技有限公司 | Biomass gasification burning environmental protection boiler |
-
2015
- 2015-11-12 CN CN201510771018.6A patent/CN105402720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021334A (en) * | 2007-03-16 | 2007-08-22 | 合肥工业大学 | Internal-combustion heating type biomass gasification furnace |
| CN101608795A (en) * | 2008-11-20 | 2009-12-23 | 无锡锡东能源科技有限公司 | A kind of modified water-cooling spiral tapping machine |
| CN101956989A (en) * | 2010-06-09 | 2011-01-26 | 广州迪森热能技术股份有限公司 | Spiral deslagging device of biomass boiler |
| CN102261648A (en) * | 2011-06-30 | 2011-11-30 | 黑龙江长志机械电器制造有限公司 | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof |
| CN102734779A (en) * | 2012-06-12 | 2012-10-17 | 江苏太湖锅炉股份有限公司 | Fixed grate type biomass boiler |
| CN205119022U (en) * | 2015-11-12 | 2016-03-30 | 广西诚顺节能环保科技有限公司 | Biomass gasification burning environmental protection boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084386A (en) * | 2017-03-16 | 2017-08-22 | 广东正鹏生物质能源科技有限公司 | A kind of integrated gasification fired boiler system of biomass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102330993B (en) | Composite structure for high-temperature spiral secondary air and arch in biomass fuel chain boiler | |
| CN104879736A (en) | Heat transfer compounding integrated furnace for biomass burning | |
| CN103644562A (en) | Combined type energy-saving biomass fuel boiler | |
| CN102620291A (en) | Pulverized coal decoupling combustor with low nitrogen oxide discharge and pulverized coal decoupling combustion method with low nitrogen oxide discharge | |
| CN104315500A (en) | Biomass gasifying and combustion boiler | |
| CN204786309U (en) | Compound integrative stove of biomass combustion heat transfer | |
| CN205746763U (en) | A kind of biomass steam generator | |
| CN104566337A (en) | Novel hearth structure of biomass chain boiler | |
| CN102128446B (en) | Boiler for carrying out mixed combustion on carbon black tail gas and coal | |
| CN106196013A (en) | Use the pluralities of fuel high-temperature gasification boiler of reducing process denitration | |
| CN203478344U (en) | Multi-return-stroke reverse combustion heating furnace | |
| CN205119022U (en) | Biomass gasification burning environmental protection boiler | |
| CN102252325B (en) | Circulating fluidized bed boiler capable of burning rice husks | |
| CN105402720A (en) | Biomass gasification combustion environment-friendly boiler | |
| CN201066195Y (en) | Horizontal type reverse-combusting coal-firing boiler | |
| CN210568368U (en) | Biomass briquette fuel semi-gasification combustion pressure-bearing boiler | |
| CN205579647U (en) | Smokeless type heating stove of clean burning of many fuel | |
| CN205119031U (en) | Living beings continuous gasification low -nitrogen combustion machine | |
| CN102425785B (en) | Biomass combustion equipment with double fire grates | |
| CN202125941U (en) | Horizontal backfire coal burning boiler with double-layer water pipe grate | |
| CN205746754U (en) | A kind of vertical type biomass steam generator | |
| CN215675280U (en) | Efficient secondary oxygen supply structure of direct-fired straw biomass boiler | |
| CN201074898Y (en) | Environment protection energy-saving boiler type stalk gasification boiler | |
| CN205746762U (en) | Biomass steam generator | |
| CN108870380A (en) | A kind of biomass gasification fired environment-protection boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |
|
| WD01 | Invention patent application deemed withdrawn after publication |