CN220793124U - Biomass high-efficiency burner - Google Patents
Biomass high-efficiency burner Download PDFInfo
- Publication number
- CN220793124U CN220793124U CN202322627409.3U CN202322627409U CN220793124U CN 220793124 U CN220793124 U CN 220793124U CN 202322627409 U CN202322627409 U CN 202322627409U CN 220793124 U CN220793124 U CN 220793124U
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- Prior art keywords
- combustion
- cavity
- fuel powder
- air duct
- channel
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- 239000002028 Biomass Substances 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 claims abstract description 76
- 239000000446 fuel Substances 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims description 42
- 239000002737 fuel gas Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 claims description 2
- 210000000214 mouth Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The utility model belongs to the technical field of combustors, and particularly discloses a biomass efficient combustor which comprises a shell, a multi-channel inlet cavity and a combustion cavity, wherein the combustion cavity is used for combusting biomass fuel powder; the multi-channel inlet cavity is sequentially provided with an ignition channel, a combustion-supporting air channel, a rotational flow air channel, a fuel powder air channel and an axial flow air channel from inside to outside, and biomass fuel powder is input into the combustion cavity through air flow; the combustion-supporting air duct comprises at least one group of combustion-supporting air conveying structures, and each group of combustion-supporting air conveying structure comprises a plurality of combustion-supporting air holes which are uniformly distributed in the circumferential direction of the combustion ignition channel. Through setting up multichannel oral cavity, can improve the combustion efficiency of biomass fuel powder, set up the gas-assisted wind channel simultaneously and pour into a small amount of combustion-supporting gas into, can make biomass fuel powder fully burn, improve combustion efficiency to reduce combustion cost.
Description
Technical Field
The utility model belongs to the technical field of combustors, and particularly relates to a biomass efficient combustor.
Background
With the rapid development of industry and the rapid promotion of urban development, energy shortage and environmental pollution are the focus of attention in the current society. At present, biomass energy waste is crop waste, forestry and wood processing waste, and a large part of the biomass energy waste can be used as energy.
The rotary kiln is used for continuously adding fuel into the rotary kiln during the calcination, and the traditional discharging mode is gravity discharging, namely biomass fuel enters the rotary kiln in a pipeline by means of gravity, and the phenomenon of wind back exists at the kiln head, so that the biomass fuel is not smoothly discharged easily.
The utility model discloses a rotary kiln chaff biomass fuel combustion system (CN 214009909U) among the prior art, including fuel silo, negative pressure adsorption equipment, screw conveyor and fan, during operation, the fuel in the fuel silo gets into screw conveyor earlier, and screw conveyor sends the fuel to negative pressure adsorption equipment, and the fan is to the air current that forms of air supply in the negative pressure adsorption equipment, and the air current is accelerated through the toper cover time speed, produces the negative pressure, inhales screw conveyor exhaust fuel, and the fuel in the negative pressure adsorption equipment gets into the rotary kiln combustor with wind again and burns.
According to the scheme, the traditional gravity blanking is changed into negative pressure adsorption blanking, and the biomass fuel is stably conveyed into the combustor of the rotary kiln for combustion, so that the system stability is facilitated, and the production is continuous. However, in the above-described scheme, the combustion efficiency of the biomass fuel in the combustion chamber is relatively low, and the fuel cannot be sufficiently combusted.
Disclosure of utility model
The utility model aims to provide a biomass efficient burner, which solves the problems that the existing biomass fuel is low in combustion efficiency in a combustion chamber and the fuel cannot be fully combusted.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the biomass efficient burner comprises a shell, and a multi-channel inlet cavity and a combustion cavity which are sequentially arranged in the shell, wherein the multi-channel inlet cavity is used for introducing air, fuel gas and biomass fuel powder into the combustion cavity, and the combustion cavity is used for burning the biomass fuel powder; the multi-channel inlet cavity is sequentially provided with an ignition channel, a combustion-supporting air duct, a rotational flow air duct, a fuel powder air duct and an axial flow air duct from inside to outside, wherein the combustion-supporting air duct is used for introducing combustion-supporting air into the combustion cavity, the rotational flow air duct is used for introducing rotational flow air into the combustion cavity, the axial flow air duct is used for introducing axial flow air into the combustion cavity, the fuel powder air duct is used for introducing biomass fuel powder into the combustion cavity, and the biomass fuel powder is input into the combustion cavity through air flow; the combustion-supporting air duct comprises at least one group of combustion-supporting air conveying structures, and each group of combustion-supporting air conveying structures comprises a plurality of combustion-supporting air holes which are uniformly distributed in the circumferential direction of the combustion ignition channel.
Further, a stirring unit is arranged in the combustion chamber and is used for stirring biomass fuel powder in the combustion chamber; the stirring unit comprises a stirring main blade, a driving piece, a gear, an outer gear ring and a rotating bearing, wherein the rotating bearing is rotationally connected to one side of the combustion chamber, which is far away from the multi-channel inlet chamber; the outer gear ring is arranged on the rotating bearing, and the gear is meshed with the outer gear ring; the driving piece is used for driving the gear to rotate; the stirring main blade is fixed on the rotating bearing through a connecting rod, and the stirring main blade is positioned in the combustion cavity.
Further, the length direction of stirring main blade is provided with a plurality of stirring branch blade, stirring branch blade is located stirring main blade is close to the one side at combustion chamber center, and stirring branch blade is unanimous with the radial direction in combustion chamber.
Further, the ash collecting device further comprises a collecting box for collecting ash, a discharge hole is formed in the bottom of the combustion cavity, a plugging piece is arranged at the discharge hole, and the collecting box is located below the discharge hole.
The beneficial effects of this technical scheme lie in:
① According to the technical scheme, through the arrangement of the multi-channel inlet cavity, the combustion efficiency of biomass fuel powder can be improved, and meanwhile, the fuel gas duct is arranged to inject a small amount of combustion-supporting gas, so that the biomass fuel powder can be fully combusted, the combustion efficiency is improved, and the combustion cost is reduced.
② According to the technical scheme, the stirring unit is arranged, so that biomass fuel powder in the combustion cavity can be stirred, and the combustion efficiency is further improved.
③ The stirring unit in this technical scheme includes stirring main blade and stirring branch blade, and both cooperations can stir biomass fuel branch better.
④ According to the technical scheme, the combustion-supporting air duct is arranged at a position close to the ignition channel, so that biomass fuel powder in the center can be fully combusted, the combustion-supporting air duct can be fully contacted with the biomass fuel powder, and the combustion efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a biomass efficient burner of the present utility model;
fig. 2 is a side view of the multi-channel inlet chamber of fig. 1.
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include: the device comprises a shell 1, an ignition channel 2, a combustion-supporting air channel 3, a rotational flow air channel 4, an axial flow air channel 5, a multi-channel inlet cavity 6, a combustion cavity 7, a driving piece 8, a gear 9, an outer gear ring 10, a rotating bearing 11, a stirring main blade 12, a stirring branch blade 13, a collecting box 14 and a fuel powder air channel 15.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment is basically as shown in the accompanying figures 1-2: the biomass high-efficiency burner is shown in fig. 1, and comprises a shell 1, a collecting box 14, a multi-channel inlet cavity 6 and a combustion cavity 7, wherein the multi-channel inlet cavity 6 and the combustion cavity 7 are sequentially arranged in the shell 1, the multi-channel inlet cavity 6 is used for introducing air, fuel aid gas and biomass fuel powder into the combustion cavity 7, the combustion cavity 7 is used for burning the biomass fuel powder, and the collecting box 14 is used for collecting ashes burnt in the combustion cavity 7.
As shown in fig. 2, the multi-channel inlet chamber 6 is sequentially provided with an ignition channel 2, a combustion-supporting air duct 3, a rotational flow air duct 4, a fuel powder air duct 15 and an axial flow air duct 5 from inside to outside, wherein the combustion-supporting air duct 3 is used for introducing combustion-supporting air into the combustion chamber 7, the rotational flow air duct 4 is used for introducing rotational flow air into the combustion chamber 7, the axial flow air duct 5 is used for introducing axial flow air into the combustion chamber 7, the fuel powder air duct 15 is used for introducing biomass fuel powder into the combustion chamber 7, and the biomass fuel powder is input into the combustion chamber 7 through air flow; the combustion-supporting air duct 3 comprises at least one group of combustion-supporting air conveying structures, two groups of combustion-supporting air conveying structures are arranged in the technical scheme, and each group of combustion-supporting air conveying structures comprises a plurality of combustion-supporting air holes which are uniformly distributed in the circumferential direction of the ignition channel 2.
As shown in fig. 1, a stirring unit is arranged in the combustion chamber 7 and is used for stirring biomass fuel powder in the combustion chamber 7; the stirring unit comprises a stirring main blade 12, a driving piece 8, a gear 9, an outer gear ring 10 and a rotating bearing 11, wherein the driving piece 8 can be a driving motor, and the driving piece 8 can be arranged on the shell 1 or a bracket. The rotary bearing 11 is rotatably connected to one side of the combustion chamber 7 away from the multi-channel inlet chamber 6; the outer gear ring 10 is arranged on the rotating bearing 11, and the gear 9 is meshed with the outer gear ring 10; the driving piece 8 is used for driving the gear 9 to rotate; the stirring main blade 12 is fixed on the rotating bearing 11 through a connecting rod, and the stirring main blade 12 is positioned in the combustion chamber 7. The stirring main blade 12 is provided with a plurality of stirring branch blades 13 in the length direction, the stirring branch blades 13 are positioned on one side of the stirring main blade 12 close to the center of the combustion chamber 7, and the stirring branch blades 13 are consistent with the radial direction of the combustion chamber 7.
The bottom of the combustion chamber 7 is provided with a discharge hole, a blocking piece is arranged at the discharge hole, and the collecting box 14 is positioned below the discharge hole. The plugging piece can adopt a plugging plate which is in sliding connection with the discharge hole and can also be fixed by bolts.
The specific implementation process is as follows:
After ignition, combustion-supporting gas enters the combustion chamber 7 through the combustion-supporting gas air duct 3 to support combustion of biomass fuel powder. In the combustion process, the driving piece 8 is started, the driving piece 8 drives the gear 9 to rotate, the gear 9 drives the rotating bearing 11 to rotate through the outer gear ring 10, the rotating bearing 11 drives the stirring main blade 12 and the stirring branch blade 13 to rotate, and the biomass fuel powder in the combustion cavity 7 is stirred, so that the biomass fuel powder can be fully combusted, the combustion efficiency is improved, and the combustion cost is reduced. The plugging piece is opened, and ash in the combustion chamber 7 falls into the collecting box 14 through the discharge hole to be collected.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present utility model, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (4)
1. Biomass high-efficiency burner is characterized in that: the biomass fuel combustion device comprises a shell (1), a multi-channel inlet cavity (6) and a combustion cavity (7) which are sequentially arranged in the shell (1), wherein the multi-channel inlet cavity (6) is used for introducing air, fuel gas and biomass fuel powder into the combustion cavity (7), and the combustion cavity (7) is used for combusting the biomass fuel powder; the multi-channel inlet cavity (6) is sequentially provided with an ignition channel (2), a combustion-supporting air duct (3), a rotational flow air duct (4), a fuel powder air duct (15) and an axial flow air duct (5) from inside to outside, wherein the combustion-supporting air duct (3) is used for introducing combustion-supporting air into the combustion cavity (7), the rotational flow air duct (4) is used for introducing rotational flow air into the combustion cavity (7), the axial flow air duct (5) is used for introducing axial flow air into the combustion cavity (7), the fuel powder air duct (15) is used for introducing biomass fuel powder into the combustion cavity (7), and the biomass fuel powder is input into the combustion cavity (7) through air flow; the combustion-supporting air duct (3) comprises at least one group of combustion-supporting air conveying structures, and each group of combustion-supporting air conveying structures comprises a plurality of combustion-supporting air holes which are uniformly distributed in the circumferential direction of the ignition channel (2).
2. The biomass efficient burner according to claim 1, wherein: a stirring unit is arranged in the combustion chamber (7) and is used for stirring biomass fuel powder in the combustion chamber (7); the stirring unit comprises a stirring main blade (12), a driving piece (8), a gear (9), an outer gear ring (10) and a rotating bearing (11), wherein the rotating bearing (11) is rotationally connected to one side of the combustion chamber (7) far away from the multichannel inlet chamber (6); the outer gear ring (10) is arranged on the rotating bearing (11), and the gear (9) is meshed with the outer gear ring (10); the driving piece (8) is used for driving the gear (9) to rotate; the stirring main blade (12) is fixed on the rotating bearing (11) through a connecting rod, and the stirring main blade (12) is positioned in the combustion chamber (7).
3. The biomass efficient burner according to claim 2, wherein: the length direction of stirring main blade (12) is provided with a plurality of stirring branch blade (13), stirring branch blade (13) are located stirring main blade (12) are close to one side at combustion chamber (7) center, and stirring branch blade (13) are unanimous with the radial direction of combustion chamber (7).
4. The biomass efficient burner according to claim 1, wherein: the ash collecting device is characterized by further comprising a collecting box (14) for collecting ash, a discharge hole is formed in the bottom of the combustion cavity (7), a plugging piece is arranged at the discharge hole, and the collecting box (14) is located below the discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627409.3U CN220793124U (en) | 2023-09-27 | 2023-09-27 | Biomass high-efficiency burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322627409.3U CN220793124U (en) | 2023-09-27 | 2023-09-27 | Biomass high-efficiency burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220793124U true CN220793124U (en) | 2024-04-16 |
Family
ID=90633899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322627409.3U Active CN220793124U (en) | 2023-09-27 | 2023-09-27 | Biomass high-efficiency burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220793124U (en) |
-
2023
- 2023-09-27 CN CN202322627409.3U patent/CN220793124U/en active Active
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