CN202350007U - Biomass combustion equipment - Google Patents
Biomass combustion equipment Download PDFInfo
- Publication number
- CN202350007U CN202350007U CN2011204967010U CN201120496701U CN202350007U CN 202350007 U CN202350007 U CN 202350007U CN 2011204967010 U CN2011204967010 U CN 2011204967010U CN 201120496701 U CN201120496701 U CN 201120496701U CN 202350007 U CN202350007 U CN 202350007U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- slag
- combustion
- flue gas
- biomass
- 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.)
- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 59
- 239000002028 Biomass Substances 0.000 title claims abstract description 25
- 239000002893 slag Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 4
- 206010012735 Diarrhoea Diseases 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000004939 coking Methods 0.000 abstract description 2
- 238000013517 stratification Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- 240000004282 Grewia occidentalis Species 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000000446 fuel Substances 0.000 description 7
- 230000004927 fusion Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses biomass combustion equipment, which comprises a feeding device, a feeding hole, a combustion chamber and a flue gas outlet, wherein a water-cooled wall heated surface is formed in the combustion chamber; tangential secondary air holes are formed on four corners of the upper part of the combustion chamber; four-corner tangent circle swirling combustion is formed in the combustion chamber; the flue gas outlet is provided with a row of slag capturing pipes formed by thinning water-cooled wall pipes of the combustion chamber; the tops of the slag capturing pipes are provided with slag blocking eaves for shunting liquid slag flowing downwards along an inner wall and passing through the flue gas outlet; and outlet flue gas is extracted through a draught fan after passing through a convective heated surface. The biomass combustion equipment has the advantages that biomass combustion liquid deslagging can be realized, and strong mixing and complete combustion are realized under the action of tangential secondary air; and under the shunting actions of the slag blocking eaves and the slag capturing pipes, the slag content of the outlet flue gas is low, the outlet flue gas is clean, and the problems of dust stratification, coking, corrosion and the like caused by low melting point of biomass ash are solved effectively.
Description
Technical field
The utility model relates to a kind of biomass combustion equipment, belongs to the biomass combustion technical field.
Background technology
Biomass energy is the regenerative resource of extremely countries in the world concern and attention; Yet because of living beings contain more alkali metal material and the compound of chlorine (especially agricultural crop straw); Cause the living beings ash fusion point very low; Be prone to cause dust stratification, slagging scorification during burning, also problems such as coking and corrosion possibly take place, damage combustion apparatus.
Disclosed now most of biomass direct-combustion boilers are traditional grate-type boiler technology and fluidization basically.For the grate-type boiler, because the low ash fusion point of living beings, the interior temperature of strict control boiler that needs in service is to avoid slagging scorification; For fluidized-bed combustion boiler, the difficult problem of biomass burning maximum is the selection of bed material, expects very easily with the living beings ash fluidisation to take place to bond and influence as the beds such as sand of cheapness, and the costs that many suitable beds are expected make us again hanging back.
The utility model content
The utility model is low and a series of problems of causing to the biomass fuel ash fusion point; A kind of biomass combustion equipment is proposed; Improve ignition temperature, realize the biomass combustion slag tap, capture, make the dust contained flue gas rate that gets into outside heating surface low through slag; Get around and adopted the control ignition temperature, sought conventional meanses such as bed material, can significantly have been improved heating surface slagging scorification and etching problem.
The technical scheme of the utility model is: a kind of biomass combustion equipment; It comprises charging gear, charging aperture, combustion chamber, furnace wall, water-cooling wall and exhanst gas outlet; It is characterized in that: four jiaos of arranged tangential have overfiren air port on top, combustion chamber; Said charging aperture is arranged on top of combustion chamber, and the contraction section of lower end, combustion chamber is for converging the grit chamber, and remittance bottom, grit chamber is provided with the granulation water tank; Said exhanst gas outlet is positioned on the furnace wall on remittance top, grit chamber, is provided with row's screen tube at smoke outlet, and the top of screen tube is provided with the pushing off the slag eaves; Be provided with convection heating surface and air-introduced machine in the outside, combustion chamber, the inlet of air-introduced machine is connected with exhanst gas outlet through piping and convection heating surface.
In the technique scheme, said screen tube is that the pipe row of water-cooling wall has loose bowels and forms; Said pushing off the slag eaves is to be made up of symmetric arrangement and two downward-sloping eaves, is welded on the said water-cooling wall; The inboard of said water-cooling wall is covered with one deck wearing layer; Said charging gear is the piston material pushing device.
The utility model has the advantages that: 1. carry out preheating and burning in the decline of fuel in the combustion chamber; Sneaking into of secondary wind formed corner tangential firing; Fully mix between biomass fuel and the air, the bigger biomass fuel of moisture that can burn, and the burning indoor temperature is higher; Can realize slag tap, efficiency of combustion is high; 2. shelves slag eaves is avoided the molten slag shunting that the combustion chamber inwall drops down to export flue gas it is carried, and through the filtration of screen tube, the outlet flue gas is clean relatively, slag-containing rate is low; 3. be negative pressure state in the combustion chamber, operation is on-the-spot clean, security of operation; 4. direct biological substance for combustion bulk cargo bag, charging gear is the piston type pusher, and fuel preliminary treatment and feed are all comparatively simple, and cost is lower.
Description of drawings
Fig. 1 is the structural representation (front view) of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Among the figure: the 1-charging aperture; The 2-combustion chamber; 3-converges the grit chamber; 4-granulation water tank; The 5-overfiren air port; The 6-water-cooling wall; The 7-wearing layer; The 8-furnace wall; The 9-exhanst gas outlet; The 10-screen tube; 11-shelves slag eaves; 12-piston material pushing device; The 13-convection heating surface; The 14-air-introduced machine.
The specific embodiment
Further specify principle, concrete structure and the preferred forms of the utility model below in conjunction with accompanying drawing.
Fig. 1 is the main TV structure sketch map of the utility model; This equipment charging gear, charging aperture 1, combustion chamber 2, furnace wall 8, water-cooling wall 6 and exhanst gas outlet 9; The four jiaos of arranged tangential in 2 tops have overfiren air port 5 in the combustion chamber, and charging aperture 1 is arranged on top of combustion chamber, and the contraction section of lower end, combustion chamber is for converging grit chamber 3; Remittance 3 bottoms, grit chamber are provided with granulation water tank 4, are used to collect the liquid slag that drop down remittance grit chamber 3; The inwall of combustion chamber 2 is furnished with water-cooling wall 6; Water-cooling wall 6 can be the membrane wall of suspention, and remittance grit chamber 3 does not arrange heating surface for heat insulating construction, inside, applies skim wearing layer 7 on the water-cooling wall 6 at first; Operation along with boiler; Wearing layer 7 is constantly frayed and come off, and the substitute is the molten slag that constantly is bonded on the water-cooling wall 6, and protection water-cooling wall 6 is not worn.Said exhanst gas outlet 9 is positioned on the furnace wall on remittance 3 tops, grit chamber, is provided with row's screen tube 10 at exhanst gas outlet 9 places, and screen tube 10 is arranged to have loose bowels for the pipe of water-cooling wall 6 and formed; The top of screen tube 10 is provided with pushing off the slag eaves 11; 2 outsides are provided with convection heating surface 13 and air-introduced machine 14 in the combustion chamber; The inlet of air-introduced machine 14 is connected with exhanst gas outlet 9 through piping and convection heating surface 13; Flowing of flue gas taken out the negative pressure operation of having drawn, having formed in the combustion chamber 2 by 14 of air-introduced machines, and outlet flue gas and convection heating surface 13 carry out discharging after the abundant heat exchange; Charging gear is a piston material pushing device 12, is used for living beings bulk cargo bag in charging aperture 1 is sent into combustion chamber 2.
As shown in Figure 2; Pushing off the slag eaves 11 is to be made up of symmetric arrangement and two downward-sloping eaves, is welded on the said water-cooling wall 6, in order to shunting along the molten slag that inwall gutters down; Walk around exhanst gas outlet 9 and flow into to converge grit chamber 3, avoid flow through exhanst gas outlet 9 and carried of slag by smoke evacuation.
This is tested novel described overfiren air port 5 and is four altogether, and the tilt angle alpha of each secondary wind and horizontal plane can be 30-60 °, and arranged tangential is on four jiaos of top, combustion chamber, in the combustion chamber, to form quadrangle tangential circle swirl flow combustion (as shown in Figure 3).
The operation principle of the utility model: during use, the biomass fuel bag is constantly sent in the combustion chamber 2 by piston type pusher 12, and the swabbing action of tail flue gas air-introduced machine 14 makes in the combustion chamber 2 and is negative pressure state, and charging aperture 1 constantly has air to bleed, and is used for burning.The air that overfiren air port 5 is got into forms the quadrangle tangential circle flow field; Make burning strongly and fully, temperature raise rapidly in the combustion chamber 2, the lime-ash fusing behind the biomass combustion; And constantly got rid of on 2 inwalls of combustion chamber and be captured down, flow into and converge grit chamber 3 and also get into granulation water tank 4.Flue gas is discharged through exhanst gas outlet 9, and exhanst gas outlet 9 is walked around in the slag shunting that pushing off the slag eaves 11 will 2 inwalls flow down along the combustion chamber, and screen tube 10 will export the slag that carries in the flue gas and constantly capture.Outlet flue gas and convection heating surface 13 take place to be extracted out by air-introduced machine 14 after the heat exchange.
The utility model is simple in structure, and is easy to operate, and efficiency of combustion is high, reasonably solved difficult problems such as low slagging scorification that causes of biomass fuel ash fusion point and corrosion.
Claims (5)
1. biomass combustion equipment; It comprises charging gear, charging aperture (1), combustion chamber (2), furnace wall (8), water-cooling wall (6) and exhanst gas outlet (9); It is characterized in that: the four jiaos of arranged tangential in (2) top have overfiren air port (5) in the combustion chamber; Said charging aperture (1) is arranged on top, combustion chamber (2), and the contraction section of lower end, combustion chamber (2) is for converging grit chamber (3), and remittance bottom, grit chamber (3) is provided with granulation water tank (4); Said exhanst gas outlet (9) is positioned on the furnace wall on remittance top, grit chamber (3), locates to be provided with row's screen tube (10) at exhanst gas outlet (9), and the top of screen tube (10) is provided with pushing off the slag eaves (11); (2) outside is provided with convection heating surface (13) and air-introduced machine (14) in the combustion chamber, and the inlet of air-introduced machine (14) is connected with exhanst gas outlet (9) through piping and convection heating surface (13).
2. a kind of biomass combustion equipment according to claim 1 is characterized in that: said screen tube (10) is arranged to have loose bowels for the pipe of water-cooling wall (6) and is formed.
3. a kind of biomass combustion equipment according to claim 1 is characterized in that: said pushing off the slag eaves (11) is to be made up of symmetric arrangement and two downward-sloping eaves, is welded on the said water-cooling wall (6).
4. a kind of biomass combustion equipment according to claim 1 is characterized in that: the inboard of said water-cooling wall (6) is covered with one deck wearing layer (7).
5. a kind of biomass combustion equipment according to claim 1 is characterized in that: said charging gear is piston material pushing device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204967010U CN202350007U (en) | 2011-12-02 | 2011-12-02 | Biomass combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204967010U CN202350007U (en) | 2011-12-02 | 2011-12-02 | Biomass combustion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350007U true CN202350007U (en) | 2012-07-25 |
Family
ID=46539009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204967010U Expired - Fee Related CN202350007U (en) | 2011-12-02 | 2011-12-02 | Biomass combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798130A (en) * | 2012-09-07 | 2012-11-28 | 中国东方电气集团有限公司 | System for relieving scorification of convection heated surface of boiler |
| CN107328099A (en) * | 2017-08-17 | 2017-11-07 | 成都佳达农业科技发展有限公司 | Biomass thermal wind furnace and fully-automatic biomass hot-blast stove |
-
2011
- 2011-12-02 CN CN2011204967010U patent/CN202350007U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798130A (en) * | 2012-09-07 | 2012-11-28 | 中国东方电气集团有限公司 | System for relieving scorification of convection heated surface of boiler |
| CN107328099A (en) * | 2017-08-17 | 2017-11-07 | 成都佳达农业科技发展有限公司 | Biomass thermal wind furnace and fully-automatic biomass hot-blast stove |
| CN107328099B (en) * | 2017-08-17 | 2023-09-15 | 成都佳达农业科技发展有限公司 | Biomass hot-blast stove and full-automatic biomass hot-blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171202 |