CN101482314A - Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate - Google Patents
Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate Download PDFInfo
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- CN101482314A CN101482314A CNA2008102098174A CN200810209817A CN101482314A CN 101482314 A CN101482314 A CN 101482314A CN A2008102098174 A CNA2008102098174 A CN A2008102098174A CN 200810209817 A CN200810209817 A CN 200810209817A CN 101482314 A CN101482314 A CN 101482314A
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Abstract
The invention relates to a biomass gasification vortex combustion boiler with a compound furnace and a fixed grate, comprising a biomass fuel gasification furnace and a vortex combustion furnace,; wherein a biomass fuel gas outlet and a partition wall of a secondary air nozzle group of the vortex combustion furnace are arranged between the two furnaces, and a fixed grate and a refractory substrate are respectively arranged in the two furnaces. A biomass fuel gasification furnace secondary air nozzle group is arranged in the right-side wall of the biomass fuel gasification furnace. A vortex furnace arch is arranged at the left-side wall of the vortex combustion furnace. A heat storage tracery wall is arranged at the upper part of the partition wall, and a burnout chamber is arranged at the back part of the biomass fuel gasification furnace and the vortex combustion furnace. The biomass fuel gas generated by the biomass fuel gasification furnace vigorously burns in a rotating way in the vortex combustion furnace, and solid particles in the fuel gas can be settled and separated in a burnout room. The boiler not only features high thermal efficiency but also completely eliminates black smoke or yellow smoke generated by biomass fuel burned by traditional boilers; in addition, fuel gas discharged by the boiler of the invention is colorless and transparent.
Description
Technical field
The present invention relates to the boiler technology field, be specially biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate.
Background technology
Biomass fuel is often referred to the agriculture and forestry discarded object, as wood chip, bark, rice husk, straw, peanut shell and bagasse etc.Because the living beings that the carbon dioxide that biomass fuel generates in combustion process can be in the growth course absorb by photosynthesis, therefore, the combustion process of biomass fuel has the characteristics of carbon dioxide zero discharge, and this has special meaning for alleviating serious day by day greenhouse effects.
Compare with raw coal, biomass fuel has following combustion characteristics: (1) oxygen content height, and phosphorus content is lower, and it is low particularly to contain fixed carbon, and therefore, the biomass fuel caloric value is lower; (2) volatile matter height, so biomass fuel is easily ignited, and the burning initial stage, the volatile matter amount of separating out is big, easily produces black smoke or tobacco under the situation of air and temperature deficiency; (3) moisture height, biomass fuel combustion need higher baking temperature and long drying time, and the flue gas volume that produces is bigger, and heat loss due to exhaust gas is higher; (4) density is little, and therefore, biomass fuel combustion needs bigger grate area and combustion space; (5) structure is more open, and biomass fuel is blown afloat easily, and the ratio of suspension combustion is big.
For guaranteeing the economy and the reliability of the operation of biomass fuel combustion equipment; improve the efficiency of combustion of living beings; must be according to the above-mentioned combustion characteristics of biomass fuel; research and develop out combustion apparatus and the boiler thereof that is suitable for biomass fuel and promote the use of, this is extremely important to energy savings and protection environment.
Summary of the invention
Combustion characteristics according to biomass fuel, traditional coal-burning boiler obviously is not suitable for burning-used biologic mass fuel, therefore, press for and research and develop out the boiler technology that is suitable for burning-used biologic mass fuel, the invention provides the biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate that is suitable for burning-used biologic mass fuel.
Technical scheme of the present invention is: the compound chamber structure that adopts biomass fuel gasification furnace and eddy combustion burner hearth to match, and biomass fuel gasification furnace is with biomass fuel gasifying, and the biomass fuel gas that is produced is in eddy combustion burner hearth internal combustion.
It is further characterized in that: be provided with vortex chimney arch and combination secondary wind group in the eddy combustion burner hearth, make the biomass fuel gas strong rotary combustion in the eddy combustion burner hearth that produces in the biomass fuel gasification furnace, efficiency of combustion and boiler thermal output have not only been improved, and the phenomenon of conventional boiler firing biomass fuel over-emitting black exhaust or tobacco, the flue gas water white transparency that this boiler is discharged have thoroughly been eliminated.
Between biomass fuel gasification furnace and eddy combustion burner hearth the upper design of partition wall have can through-flow flue gas the accumulation of heat tracery wall, the rear portion is furnished with the sedimentation secondary furnace of solid particle in the separable flue gas, this has not only prolonged the burning time of biomass fuel gas, fuel and Air mixing have been strengthened, guarantee the after-flame of combustible, and reduced the initial dust-density emission of boiler significantly.
Description of drawings
Fig. 1 is the cutaway view of front view of the present invention
Fig. 2 is the cutaway view in the A-A cross section of Fig. 1
Piece number explanation among the figure:
1, air compartment; 2, fixed grate; 3, fire door; The outlet of 4 biomass fuel gas; 5, secondary furnace; 6, drum; 7, fire-resistant end liner; 8, eddy combustion burner hearth; 9, partition wall; 10, vortex chimney arch; 11, eddy combustion burner hearth secondary wind jet pipe group; 12, accumulation of heat tracery wall; 13, outlet flue; 14, biomass fuel gasification furnace secondary wind jet pipe group; 15, biomass fuel gasification furnace; 16, base.
The specific embodiment
Below in conjunction with accompanying drawing optimum implementation of the present invention is described in detail.Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate comprises air compartment 1, fire door 3, drum 6 and base 16 one time.On base 16, be provided with the biomass fuel gasification furnace 15 and the eddy combustion burner hearth 8 that are separated by partition wall 9.Be provided with respectively biomass fuel gas outlet 4 that links with fuel gasification burner hearth 15 and eddy combustion burner hearth 8 and the eddy combustion burner hearth secondary wind jet pipe group 11 that sprays to eddy combustion burner hearth 8 at the middle part of partition wall 9.The top of partition wall 9 is furnished with accumulation of heat tracery wall 12.The bottom of biomass fuel gasification furnace 15 is provided with fixed grate 2, and its underpart is provided with air compartment 1 one time.Be provided with biomass fuel gasification furnace secondary wind jet pipe group 14 in the right-side wall of biomass fuel gasification furnace 15.The left side wall of eddy combustion burner hearth 8 is provided with vortex chimney arch 10, the use that matches of outlet 4 of this vortex chimney arch 10 and biomass fuel gas and eddy combustion burner hearth secondary wind jet pipe group 8.Be provided with fire-resistant end liner 7 in the bottom of eddy combustion burner hearth 8.Secondary furnace 5 is arranged on the rear portion of biomass fuel gasification furnace 15 and eddy combustion burner hearth 8.Outlet flue 13 links eddy combustion burner hearth 8, accumulation of heat tracery wall 12 with secondary furnace 5.
During boiler operatiopn, biomass fuel is thrown on the fixed grate 2 in the biomass fuel gasification furnace 15 by fire door 3, send into by air compartment 1 part air that needs that will burn, the biomass fuel bed on the fixed grate 2 is burnt under anaerobic condition, produced a large amount of biomass fuel gas.Simultaneously after the strong mixing of the combination air-spray that biomass fuel gasification furnace secondary wind jet pipe group 14 sprays, enter eddy combustion burner hearth 8 by the outlet of the biomass fuel gas on the partition wall 94, mix, also under the guiding of vortex chimney arch 10, carry out simultaneously strong eddy combustion strongly with the combination air-spray of eddy combustion burner hearth secondary wind jet pipe group 11 ejections.Flame that burning produces and flue gas enter secondary furnace 5 by the further mixing back of accumulation of heat tracery wall 12 by outlet flue 13, combustible wherein here can further burn, by inertia and Gravity Separation, the most of solid particle that carries in the flue gas is separated simultaneously.The flue gas that flows out from secondary furnace 5 passes through two backhaul smoke pipe Shu Jinhang heat exchange, discharges boiler then.
Claims (3)
1, biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate comprises air compartment 1, fire door 3, drum 6 and base 16 one time.On base 16, be provided with the biomass fuel gasification furnace 15 and the eddy combustion burner hearth 8 that are separated by partition wall 9.Be provided with respectively biomass fuel gas outlet 4 that links with fuel gasification burner hearth 15 and eddy combustion burner hearth 8 and the eddy combustion burner hearth secondary wind jet pipe group 11 that sprays to eddy combustion burner hearth 8 at the middle part of partition wall 9.The top of partition wall 9 is furnished with accumulation of heat tracery wall 12.The bottom of biomass fuel gasification furnace 15 is provided with fixed grate 2, and its underpart is provided with air compartment 1 one time.Be provided with biomass fuel gasification furnace secondary wind jet pipe group 14 in the right-side wall of biomass fuel gasification furnace 15.The left side wall of eddy combustion burner hearth 8 is provided with vortex chimney arch 10, the use that matches of outlet 4 of this vortex chimney arch 10 and biomass fuel gas and eddy combustion burner hearth secondary wind jet pipe group 8.Be provided with fire-resistant end liner 7 in the bottom of eddy combustion burner hearth 8.Secondary furnace 5 is arranged on the rear portion of biomass fuel gasification furnace 15 and eddy combustion burner hearth 8.Outlet flue 13 links eddy combustion burner hearth 8, accumulation of heat tracery wall 12 with secondary furnace 5.
2, biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate according to claim 1 is characterized in that being provided with at the middle part of partition wall 9 respectively biomass fuel gas outlet 4 that links with fuel gasification burner hearth 15 and eddy combustion burner hearth 8 and the eddy combustion burner hearth secondary wind jet pipe group 11 that sprays to eddy combustion burner hearth 8.The left side wall of eddy combustion burner hearth 8 is provided with vortex chimney arch 10, the use that matches of outlet 4 of this vortex chimney arch 10 and biomass fuel gas and eddy combustion burner hearth secondary wind jet pipe group 8.
3, biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate according to claim 1, the top that it is characterized in that partition wall 9 between biomass fuel gasification furnace 15 and the eddy combustion burner hearth 8 is furnished with accumulation of heat tracery wall 12, and eddy combustion burner hearth 8, accumulation of heat tracery wall 12 link with secondary furnace 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102098174A CN101482314A (en) | 2008-12-29 | 2008-12-29 | Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102098174A CN101482314A (en) | 2008-12-29 | 2008-12-29 | Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate |
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| CN101482314A true CN101482314A (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008102098174A Pending CN101482314A (en) | 2008-12-29 | 2008-12-29 | Biomass gasification vortex combustion boiler with combined combustion chamber and fixed grate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927562A (en) * | 2012-11-01 | 2013-02-13 | 常德市金沅锅炉制造有限公司 | Boiling type rice husk combustion boiler |
| CN103206704A (en) * | 2012-01-12 | 2013-07-17 | 赵军 | Biomass sawdust particle boiler |
| CN104373930A (en) * | 2014-11-20 | 2015-02-25 | 四川新城都锅炉有限公司 | Energy-saving and low-NOx biomass boiler |
| CN105115155A (en) * | 2015-08-13 | 2015-12-02 | 浙江明佳环保科技有限公司 | Biofuel hot-blast stove |
| CN107036074A (en) * | 2017-06-02 | 2017-08-11 | 哈尔滨理工大学 | A kind of new rice husk gasification, and combustion steam boiler |
| CN110095562A (en) * | 2019-04-23 | 2019-08-06 | 云南农业大学 | Dual-Phrase Distribution of Gas olid visualization combustion furnace and corrosion chamber with purging function |
-
2008
- 2008-12-29 CN CNA2008102098174A patent/CN101482314A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206704A (en) * | 2012-01-12 | 2013-07-17 | 赵军 | Biomass sawdust particle boiler |
| CN102927562A (en) * | 2012-11-01 | 2013-02-13 | 常德市金沅锅炉制造有限公司 | Boiling type rice husk combustion boiler |
| CN104373930A (en) * | 2014-11-20 | 2015-02-25 | 四川新城都锅炉有限公司 | Energy-saving and low-NOx biomass boiler |
| CN104373930B (en) * | 2014-11-20 | 2016-08-31 | 四川新城都锅炉有限公司 | Biomass energy-saving, low-NO_x emission |
| CN105115155A (en) * | 2015-08-13 | 2015-12-02 | 浙江明佳环保科技有限公司 | Biofuel hot-blast stove |
| CN107036074A (en) * | 2017-06-02 | 2017-08-11 | 哈尔滨理工大学 | A kind of new rice husk gasification, and combustion steam boiler |
| CN110095562A (en) * | 2019-04-23 | 2019-08-06 | 云南农业大学 | Dual-Phrase Distribution of Gas olid visualization combustion furnace and corrosion chamber with purging function |
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Open date: 20090715 |