CN215489684U - Clean, efficient and environment-friendly biomass particle combustion furnace - Google Patents
Clean, efficient and environment-friendly biomass particle combustion furnace Download PDFInfo
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- CN215489684U CN215489684U CN202120885874.5U CN202120885874U CN215489684U CN 215489684 U CN215489684 U CN 215489684U CN 202120885874 U CN202120885874 U CN 202120885874U CN 215489684 U CN215489684 U CN 215489684U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
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Abstract
The utility model relates to a clean, efficient and environment-friendly biomass particle combustion furnace which comprises a base, a first combustion furnace, a heat exchange device, a second combustion furnace, a channel pipe, a shell, a feeding hopper, a conveyor, a blower and an exhaust fan, wherein the top end of the first combustion furnace is provided with a smoke outlet and is vertically fixed on the base, the lower part of the furnace wall at one side of the first combustion furnace is provided with a first air inlet, the middle part of the first combustion furnace is provided with a feed inlet, the lower part of the furnace wall at the other side of the first combustion furnace is provided with a first slag outlet, and the middle part of the first combustion furnace is provided with an ignition port; the top end of the second combustion furnace is provided with a smoke inlet, and the bottom end of the second combustion furnace is provided with a smoke outlet; the channel pipe is communicated with a smoke outlet at the top end of the first combustion furnace and a smoke inlet at the top end of the second combustion furnace; according to the utility model, the first combustion furnace and the second combustion furnace are designed, the top of the first combustion furnace is communicated, and biomass fuel combusted in the first combustion furnace can enter the second combustion furnace along with rising airflow to be continuously combusted, so that the combustion efficiency of the biomass fuel is improved.
Description
Technical Field
The utility model relates to the field of combustion furnace devices, in particular to a clean, efficient and environment-friendly biomass particle combustion furnace.
Background
The biomass fuel is a clean fuel, mainly utilizes agricultural and forestry wastes (such as straws, sawdust, bagasse, rice chaff and the like) to prepare various shaped (such as blocks, particles and the like) fuels through the processes of crushing, mixing, extruding, drying and the like,
the existing small and medium-sized biomass combustion furnace mostly adopts a single combustion furnace for combustion, the combustion efficiency is low and coking often occurs, because biomass fuel is changed into light charcoal small particles after being combusted for a period of time, the charcoal small particles float in the combustion furnace and are brought into a smoke exhaust pipe along with rising airflow to fly out of the furnace, so that fuel waste is caused; the biomass fuel contains low-melting-point compounds such as aluminum oxide, silicon oxide and the like, is in a softening state at a high temperature, and is cooled and coked after touching a furnace wall.
Therefore, the problem to be solved by those skilled in the art is how to increase the combustion rate of biomass fuel and prevent coking in the combustion furnace.
SUMMERY OF THE UTILITY MODEL
The utility model provides a clean, efficient and environment-friendly biomass particle combustion furnace, which solves the technical problems that the existing biomass combustion furnace is low in combustion efficiency and frequently generates coking.
The technical scheme for solving the technical problems is as follows: a clean, high-efficiency and environment-friendly biomass particle combustion furnace, which comprises a base, a first combustion furnace, a heat exchange device, a second combustion furnace, a channel pipe, a shell, a feeding hopper, a conveyor, a blower and an exhaust fan,
the top end of the first combustion furnace is provided with a smoke outlet and is vertically fixed on the base, the lower part of the furnace wall of one side of the first combustion furnace is provided with a first air inlet, the middle part of the furnace wall of one side of the first combustion furnace is provided with a feed inlet, the lower part of the furnace wall of the other side of the first combustion furnace is provided with a first slag outlet, and the middle part of the furnace wall of the other side of the first combustion furnace is provided with an ignition port; the heat exchange device is fixed on the base, and the upper part of the heat exchange device is provided with a smoke outlet; the top end of the second combustion furnace is provided with a smoke inlet, the bottom end of the second combustion furnace is provided with a smoke outlet, the second combustion furnace is close to the first combustion furnace, and the smoke outlet at the bottom end is fixed and communicated with the smoke inlet on the heat exchange device; the channel pipe is communicated with a smoke outlet at the top end of the first combustion furnace and a smoke inlet at the top end of the second combustion furnace;
the shell is covered on the outer side of the heat exchange device and fixed on the base, a smoke outlet is arranged at the position, opposite to the smoke outlet of the heat exchange device, of the upper part of one side wall of the shell, and a heat exhaust air outlet is arranged on the other side wall of the shell; the feeding hopper is fixed on the shell and is communicated with a feeding hole of the first combustion furnace through a conveyor; the air feeder is fixed on the base, an air supply outlet of the air feeder is communicated with the first air supply pipe, and the first air supply pipe is communicated with the first air inlet; the exhaust fan is fixed and communicated with the smoke outlet of the shell.
The utility model has the beneficial effects that: because the first combustion furnace and the second combustion furnace which are communicated with each other at the tops are designed, the biomass fuel combusted in the first combustion furnace can enter the second combustion furnace along with the ascending airflow to be continuously combusted, and the combustion efficiency of the biomass fuel is improved.
On the basis of the technical scheme, the utility model can be further improved as follows.
Further, the heat exchange device comprises a settling tank for receiving ash generated by combustion settling of the second combustion furnace and at least one heat conversion mechanism, the settling tank is a hollow rectangular box body, a smoke inlet on the heat exchange device is an opening formed in the top of the rectangular box body, and the bottom of the rectangular box body is fixed on the base; a smoke outlet at the bottom end of the second combustion furnace is fixed and communicated with an opening formed in the top of the rectangular box body; the thermal conversion mechanism comprises a first smoke collecting box, a second smoke collecting box and a plurality of radiating pipes, the first smoke collecting box is fixed on the base, a smoke inlet at one end of the first smoke collecting box is communicated with a smoke outlet arranged on one side wall of the rectangular box body, and a plurality of first smoke through holes are formed in the upper surface of the first smoke collecting box; the second smoke collecting box is positioned right above the first smoke collecting box, and the lower surface of the second smoke collecting box is provided with a plurality of second smoke through holes corresponding to the plurality of first smoke through holes; the smoke outlet is arranged on the side wall of the second smoke collecting box; the two ends of the radiating pipes are respectively and fixedly communicated with the first smoke through hole and the second smoke through hole.
The beneficial effect of adopting the further scheme is that: because the bottom of the second combustion furnace is communicated with the settling box, ash and slag generated by the second combustion furnace can be settled and accumulated in the settling box, and the ash and slag in the discharged flue gas can be reduced; because the heat flue gas flows in first flue gas collecting box, second flue gas collecting box and a plurality of cooling tubes, the heat in the flue gas can distribute to the air within the outer casing of heat transfer device in, and then improve the air temperature within the outer and casing of heat transfer device.
Further, the slag extractor can also comprise a first slag collecting frame which can be connected to the first slag outlet in a drawing mode.
The beneficial effect of adopting the further scheme is that: the first slag collecting frame can collect the ash slag after the combustion of the first combustion furnace.
Further, the second combustion furnace capacity is 2 times or more the first combustion furnace capacity.
The beneficial effect of adopting the further scheme is that: because the second combustion furnace is more than 2 times of the first combustion furnace, according to the fluid motion law, the air flow entering the second combustion furnace is accelerated, the accelerated air flow can quickly carry the wood carbonized small particles to enter the second combustion furnace for suspension combustion, and the wood carbonized small particles can not be gathered in a high-temperature area in the whole combustion process, so that the formation condition of coking is lost.
Furthermore, the slag collecting box can further comprise a second slag collecting frame, a second slag outlet is formed in the other side wall of the rectangular box body, and the second slag collecting frame can be connected to the second slag outlet in a drawing mode.
The beneficial effect of adopting the further scheme is that: the second slag collecting frame can collect the ash slag after the second combustion furnace is combusted.
Further, the furnace bridge can be further included, the furnace bridge is fixed in the first combustion furnace and located between the first slag outlet of the first combustion furnace and the ignition port of the first combustion furnace, and a plurality of slag falling holes are formed in the furnace bridge.
The beneficial effect of adopting the further scheme is that: biomass fuel is piled up on the upper portion of the furnace bridge, the biomass fuel is ignited, the biomass fuel is combusted above the road bridge, and ash and slag generated in the combustion process can fall into the first slag collecting frame through the slag falling hole in the furnace bridge.
Furthermore, a second air inlet is formed in the upper part of the furnace wall at one side of the first combustion furnace; a third air inlet is formed in the side wall of the channel pipe; the air outlet of the blower is also communicated with a second air supply pipe and a third air supply pipe, the second air supply pipe is communicated with the second air inlet, and the third air supply pipe is communicated with the third air inlet.
The beneficial effect of adopting the further scheme is that: because the air outlet of the blower is communicated with the second air outlet pipe, and the second air inlet pipe and the second air inlet on the second combustion furnace are designed, the air supply quantity of the first combustion furnace is improved, and the fuel accumulation can be avoided to block the air supply quantity of the first air outlet pipe; because the air outlet intercommunication of forced draught blower has the third to go out the tuber pipe, and the third goes out the tuber pipe and communicates with the third air inlet that the siphunculus pipe set up, and the air that the forced draught blower provided can directly get into in the second combustion furnace through the third air inlet, can improve the combustion efficiency in the second combustion furnace.
Drawings
FIG. 1 is a front view of a clean, efficient and environmentally friendly biomass particle combustion furnace according to the present invention;
FIG. 2 is a schematic perspective view of a clean, efficient and environmentally friendly biomass particle combustion furnace according to the present invention;
FIG. 3 is a schematic view of the internal structure of a clean, efficient and environment-friendly biomass particle combustion furnace according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a shell, 2, a base, 3, a first combustion furnace, 31, a first air inlet, 32, a feed inlet, 33, a first slag outlet, 34, an ignition port, 35, a second air inlet, 4, a hopper, 5, a conveyor, 6, a blower, 61, a first air outlet pipe, 62, a second air outlet pipe, 63, a third air outlet pipe, 7, a second combustion furnace, 8, a channel pipe, 81, a third air inlet, 9, an exhaust fan, 10, a heat exchange device, 101, a settling box, 1011, a second slag outlet, 102, a first flue gas collecting box, 103, a second flue gas collecting box, 104, a radiating pipe, 105, a smoke outlet, 11, a first slag collecting frame, 12 and a second slag collecting frame.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
As shown in figure 3, the clean, efficient and environment-friendly biomass particle combustion furnace comprises a base 2, a first combustion furnace 3, a heat exchange device 10, a second combustion furnace 7, a channel pipe 8, a shell 1, a hopper 4, a conveyor 5, a blower 6 and an exhaust fan 9,
the top end of the first combustion furnace 3 is provided with a smoke outlet and is vertically fixed on the base 2, the lower part of the furnace wall of one side of the first combustion furnace 3 is provided with a first air inlet 31, the middle part is provided with a feed inlet 32, the lower part of the furnace wall of the other side is provided with a first slag outlet 33, and the middle part is provided with an ignition port 34; the heat exchange device 10 is fixed on the base 2, and the upper part of the heat exchange device is provided with a smoke outlet 105; the top end of the second combustion furnace 7 is provided with a smoke inlet, the bottom end of the second combustion furnace 7 is provided with a smoke outlet, the second combustion furnace 7 is close to the first combustion furnace 3, and the smoke outlet at the bottom end of the second combustion furnace is fixed and communicated with the smoke inlet on the heat exchange device 10; the channel pipe 8 is communicated with a smoke outlet at the top end of the first combustion furnace 3 and a smoke inlet at the top end of the second combustion furnace 7;
the shell 1 is covered on the outer side of the heat exchange device 10 and fixed on the base 2, a smoke outlet is arranged at the position, opposite to the smoke outlet 105 of the heat exchange device 10, of the upper part of one side wall of the shell 1, and a heat exhaust air outlet is arranged at the other side wall of the shell 1; the hopper 4 is fixed on the shell 1 and is communicated with the feed inlet 32 of the first combustion furnace 3 through the conveyor 5; the blower 6 is fixed on the base 2, the air supply outlet of the blower 6 is communicated with the first air supply pipe 61, and the first air supply pipe 61 is communicated with the first air inlet 31; the exhaust fan 9 is fixed and communicated with the smoke outlet of the shell 1.
The working principle of the embodiment of the utility model is as follows:
biomass particles are placed on a feeding hopper 4, the feeding hopper 4 is communicated with a conveyor 5, the conveyor 5 pushes the biomass particles into a feeding hole 32 arranged in the middle of a first combustion furnace 3, the biomass particles are accumulated in the first combustion furnace 3, an ignition hole 34 arranged on one side of the first combustion furnace 3 is ignited, biomass fuel starts to burn, at the moment, an air feeder 6 blows external air into the first combustion furnace 3 through a first air inlet 31, the blown air assists in combustion of the biomass particles, the biomass particles can generate small charcoal particles with lighter mass after burning for a period of time, the small charcoal particles enter a second combustion furnace 7 through a channel pipe 8 along with rising air flow, the combustion is continued in the second combustion furnace 7, heat smoke generated by the burning transmits heat to air in the shell 1 beyond a heat exchange device 10 through the heat exchange device 10, and the heated air is discharged from a heat exhaust hole arranged on the other side wall of the shell 1, the smoke after heat dissipation is exhausted by the exhaust fan 9 through the smoke outlet arranged on the upper part of the heat exchange device 10 and the smoke outlet arranged on the shell 1.
In some embodiments, the heat exchange device 10 comprises a settling tank 101 for receiving ash generated by combustion settling of the second combustion furnace 7 and at least one thermal conversion mechanism, the settling tank 101 is a hollow rectangular box, a smoke inlet on the heat exchange device 10 is an opening formed in the top of the rectangular box, and the bottom of the rectangular box is fixed on the base 2; a smoke outlet at the bottom end of the second combustion furnace 7 is fixed and communicated with an opening formed at the top of the rectangular box body; the heat conversion mechanism comprises a first flue gas collecting box 102, a second flue gas collecting box 103 and a plurality of radiating pipes 104, the first flue gas collecting box 102 is fixed on the base 2, a flue gas inlet at one end of the first flue gas collecting box is communicated with a flue gas outlet arranged on one side wall of the rectangular box body, and a plurality of first flue gas through holes are formed in the upper surface of the first flue gas collecting box 102; the second smoke collection box 103 is positioned right above the first smoke collection box 102, and the lower surface of the second smoke collection box is provided with a plurality of second smoke through holes corresponding to the plurality of first smoke through holes; the smoke outlet 105 is arranged on the side wall of the second smoke collecting box 103; two ends of the plurality of radiating pipes 104 are respectively and fixedly communicated with the first smoke through holes and the second smoke through holes. Because the bottom of the second combustion furnace 7 is communicated with the settling tank 101, the ash and slag generated by the second combustion furnace 7 can be settled and accumulated in the settling tank 101, so that the ash and slag in the discharged flue gas can be reduced; because the heat smoke flows in the first smoke collecting box 102, the second smoke collecting box 103 and the plurality of radiating pipes 104, the heat in the smoke can be radiated to the air inside the shell 1 outside the heat exchanging device 10, and the temperature of the air inside the shell 1 and outside the heat exchanging device 10 is further increased.
In some embodiments, the first slag collecting frame 11 is further included, the first slag collecting frame 11 is connected to the first slag outlet 33 in a drawing way, and the first slag collecting frame 11 can collect the ash after the first combustion furnace 3 is combusted.
In some embodiments, the capacity of the second combustion furnace 7 is more than 2 times of the capacity of the first combustion furnace 3, and since the second combustion furnace 7 is more than 2 times of the capacity of the first combustion furnace 3, according to the fluid motion law, the air flow entering the second combustion furnace 3 is accelerated, the accelerated air flow can rapidly carry the wood charring small particles to enter the second combustion furnace 7 for suspension combustion, and the wood charring small particles cannot be aggregated in a high temperature region in the whole combustion process, so that the coking formation condition is lost.
In some embodiments, the slag collecting device further comprises a second slag collecting frame 12, a second slag outlet 1011 is arranged on the other side wall of the rectangular box body, and the second slag collecting frame 12 can be connected at the second slag outlet 1011 in a drawing mode.
In some embodiments, the furnace further comprises a furnace bridge fixed inside the first combustion furnace 3 and located between the first slag outlet 33 of the first combustion furnace 3 and the ignition port 34 of the first combustion furnace 3, and the furnace bridge is provided with a plurality of slag falling holes.
In some embodiments, the second air inlet 35 is provided at the upper part of the furnace wall at one side of the first combustion furnace 3; the side wall of the channel pipe 8 is provided with a third air inlet 81; the air outlet of the blower 6 is also communicated with a second air supply pipe 62 and a third air supply pipe 63, the second air supply pipe 62 is communicated with a second air inlet 35, the third air supply pipe 63 is communicated with a third air inlet 81, the air outlet of the blower 6 is communicated with a second air outlet pipe 62, the second air supply pipe 62 is communicated with the second air inlet 35 on the second combustion furnace 7, the air supply quantity of the first combustion furnace 3 is increased, and the fuel accumulation can be avoided from blocking the air supply quantity of the first air outlet pipe 61; because the air outlet of the blower 6 is communicated with the third air outlet pipe 63, the third air outlet pipe 63 is communicated with the third air inlet 81 arranged on the through pipe 8, the air provided by the blower 6 can directly enter the second combustion furnace 7 through the third air inlet 81, and the combustion efficiency in the second combustion furnace 7 can be improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A clean, efficient and environment-friendly biomass particle combustion furnace is characterized by comprising a base (2), a first combustion furnace (3), a heat exchange device (10), a second combustion furnace (7), a channel pipe (8), a shell (1), a feeding hopper (4), a conveyor (5), a blower (6) and an exhaust fan (9),
the top end of the first combustion furnace (3) is provided with a smoke outlet and is vertically fixed on the base (2), the lower part of the furnace wall of one side of the first combustion furnace (3) is provided with a first air inlet (31), the middle part of the furnace wall is provided with a feed inlet (32), the lower part of the furnace wall of the other side is provided with a first slag outlet (33), and the middle part of the furnace wall is provided with an ignition port (34); the heat exchange device (10) is fixed on the base (2) and the upper part of the heat exchange device is provided with a smoke outlet (105); the top end of the second combustion furnace (7) is provided with a smoke inlet, the bottom end of the second combustion furnace (7) is provided with a smoke outlet, the second combustion furnace (7) is close to the first combustion furnace (3), and the smoke outlet at the bottom end is fixed and communicated with the smoke inlet of the heat exchange device (10); the channel pipe (8) is fixed and communicated with a smoke outlet at the top end of the first combustion furnace (3) and a smoke inlet at the top end of the second combustion furnace (7);
the shell (1) is covered on the outer side of the heat exchange device (10) and fixed on the base (2), a smoke outlet is formed in the upper part of one side wall of the shell (1) corresponding to the position of a smoke outlet (105) of the heat exchange device (10), and a heat exhaust air outlet is formed in the other side wall of the shell (1); the hopper (4) is fixed on the shell (1) and is communicated with a feed inlet (32) of the first combustion furnace (3) through the conveyor (5); the blower (6) is fixed on the base (2), a blower outlet of the blower (6) is communicated with a first blower pipe (61), and the first blower pipe (61) is communicated with the first air inlet (31); the exhaust fan (9) is fixed and communicated with the smoke outlet of the shell (1).
2. The clean, efficient and environment-friendly biomass particle combustion furnace as recited in claim 1, wherein said heat exchanging device (10) comprises a settling tank (101) for receiving ash generated by combustion and settling of said second combustion furnace (7) and at least one heat conversion mechanism, said settling tank (101) is a hollow rectangular box body, a smoke inlet on said heat exchanging device (10) is an opening formed in the top of said rectangular box body, and the bottom of said rectangular box body is fixed on said base (2); a smoke outlet at the bottom end of the second combustion furnace (7) is fixed and communicated with an opening formed in the top of the rectangular box body; the heat conversion mechanism comprises a first smoke collecting box (102), a second smoke collecting box (103) and a plurality of radiating pipes (104), the first smoke collecting box (102) is fixed on the base (2), a smoke inlet at one end of the first smoke collecting box is communicated with a smoke outlet arranged on one side wall of the rectangular box body, and a plurality of first smoke through holes are formed in the upper surface of the first smoke collecting box (102); the second smoke collecting box (103) is positioned right above the first smoke collecting box (102), and the lower surface of the second smoke collecting box is provided with a plurality of second smoke through holes corresponding to the first smoke through holes; the smoke outlet (105) is arranged on the side wall of the second smoke collection box (103); and two ends of the heat radiating pipes (104) are respectively and fixedly communicated with the first smoke through hole and the second smoke through hole.
3. The clean, efficient and environmentally friendly biomass particle combustion furnace as recited in claim 1, further comprising a first slag collection frame (11), wherein said first slag collection frame (11) is connected to said first slag outlet (33) in a drawable manner.
4. A clean, efficient and environmentally friendly biomass particle burning furnace as claimed in claim 1, wherein the capacity of said second burning furnace (7) is more than 2 times the capacity of said first burning furnace (3).
5. A clean, efficient and environmentally friendly biomass particle burning furnace as claimed in claim 2, further comprising a second slag collection frame (12), wherein the other side wall of said rectangular box body is provided with a second slag outlet (1011), and said second slag collection frame (12) is connected at said second slag outlet (1011) in a drawing way.
6. The clean, efficient and environmentally friendly biomass particle combustion furnace as recited in claim 1, further comprising a grate fixed inside the first combustion furnace (3) and located between the first slag outlet (33) of the first combustion furnace (3) and the ignition port (34) of the first combustion furnace (3), wherein the grate is provided with a plurality of slag discharge holes.
7. The clean, efficient and environment-friendly biomass particle combustion furnace as recited in claim 1, wherein a second air inlet (35) is formed at the upper part of the wall of the first combustion furnace (3); a third air inlet (81) is formed in the side wall of the channel pipe (8); the air outlet of the blower (6) is also communicated with a second air supply pipe (62) and a third air supply pipe (63), the second air supply pipe (62) is communicated with the second air inlet (35), and the third air supply pipe (63) is communicated with the third air inlet (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885874.5U CN215489684U (en) | 2021-04-27 | 2021-04-27 | Clean, efficient and environment-friendly biomass particle combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885874.5U CN215489684U (en) | 2021-04-27 | 2021-04-27 | Clean, efficient and environment-friendly biomass particle combustion furnace |
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| Publication Number | Publication Date |
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| CN215489684U true CN215489684U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120885874.5U Active CN215489684U (en) | 2021-04-27 | 2021-04-27 | Clean, efficient and environment-friendly biomass particle combustion furnace |
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| CN (1) | CN215489684U (en) |
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2021
- 2021-04-27 CN CN202120885874.5U patent/CN215489684U/en active Active
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