CN214619686U

CN214619686U - Biomass combustion type stove

Info

Publication number: CN214619686U
Application number: CN202120437099.7U
Authority: CN
Inventors: 王庆禄
Original assignee: Shandong Haobang Environmental Protection Technology Co ltd
Current assignee: Shandong Haobang Environmental Protection Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-11-05
Anticipated expiration: 2031-03-01

Abstract

The utility model discloses a biomass combustion type stove, which comprises a stove body, a storage bin and a combustion chamber are arranged in the stove body, a stove head is arranged in the combustion chamber, a feeding device for conveying fuel in the storage bin into the stove head for combustion is arranged below the storage bin, the feeding device comprises a first-stage material conveying component and a second-stage material conveying component, the first-stage material conveying component and the second-stage material conveying component are mutually communicated, the discharge end of the second-stage material conveying component is communicated with the stove head, and a wind channel system is respectively arranged in the stove body, the utility model can automatically convey the fuel in the storage bin into the stove head for combustion, realize automatic fuel supplement, improve the combustion effect of the fuel, extrude the fuel at the bottom of the stove head, mutually push the fuel to move upwards, avoid coking when the fuel is fed by the fireplace, ensure the sufficient combustion of the fuel, and improve the utilization rate of the fuel, and the heat exchange rate is improved through the radiator, the indoor heating is realized, and the use effect is improved.

Description

Biomass combustion type stove

Technical Field

The utility model belongs to the technical field of the fireplace, specific theory relates to a living beings burning type stove.

Background

In many countries, most residents always place a fireplace for indoor heating at home in winter, the existing fireplace is built by fireproof bricks, the top of the fireplace is connected with a chimney, and wood is burned in the fireplace for heating; however, such fireplaces are expensive to manufacture and cumbersome to use, and especially when wood is burned, smoke and harmful gases are generated, which pollute the room.

Along with the continuous improvement of living standard of people, new materials and new fuels used by the fireplace come into existence, for example, the existing fireplace is made of metal materials such as 201721140326.X, and discloses a particle combustion type fireplace which comprises a body, a feeding device, a combustion chamber and an air duct, wherein the feeding device, the combustion chamber and the air duct are arranged in the body, a furnace end and a rotary grate are arranged in the combustion chamber, the furnace end is communicated up and down, the rotary grate is positioned at the bottom of the furnace end, the feeding device feeds materials into the furnace end, the rotary grate can rotate under the driving of a rotating mechanism, ash residues on the upper surface of the rotary grate can be poured downwards in the rotating process, and the fireplace is also provided with a positioning mechanism for rotating the rotary grate in place.

Above-mentioned this kind of burning formula fireplace adopts material feeding unit to carry out automatic pay-off to the furnace end in, but this fireplace is at the in-process of burning, can not cause the volume of burning not enough and the interruption of heating installation supply easily in practical application through a large amount of material loading in the short time of this material feeding unit, and fuel easily piles up in material feeding unit, causes the fuel utilization ratio not high, and causes material feeding unit pay-off slowly or block up.

In the feeding process of the feeding device, the feeding mode of the feeding device is that feeding is carried out from top to bottom into the furnace end, and when the feeding mode is adopted for feeding, old fuel in the furnace end is not completely combusted, namely is covered by new fuel to cause coking, so that the fireplace is easy to block oxygen deficiency to cause insufficient combustion, and even the fireplace is easy to extinguish, thereby causing potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The to-be-solved main technical problem of the utility model is to provide a can automize and carry out the material loading, and the material loading is fast, and the fuel is difficult for piling up the jam to can make the fuel fully burn, improve the living beings burning furnace utensil of burning, heating effect.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a living beings combustion type stove, includes the furnace body, be provided with storage silo and combustion chamber in the furnace body, be provided with the furnace end in the combustion chamber, the below of storage silo is provided with and is used for carrying the material feeding unit that burns in the fuel in the storage silo to the furnace end, material feeding unit includes the defeated material subassembly of one-level and the defeated material subassembly of second grade, the defeated material subassembly of one-level and the defeated material subassembly of second grade communicate each other, the discharge end and the furnace end intercommunication of the defeated material subassembly of second grade have laid air duct system in the furnace body respectively.

The following is the utility model discloses to above-mentioned technical scheme's further optimization:

the lower part of the storage bin is fixedly provided with a mounting plate, the first-stage material conveying assembly and the second-stage material conveying assembly are respectively and fixedly mounted on the mounting plate, and the mounting plate is provided with a driving assembly for driving the first-stage material conveying assembly and the second-stage material conveying assembly to work.

Further optimization: the first-stage material conveying assembly comprises a first-stage material conveying channel fixedly mounted on the mounting plate, a feed inlet of the first-stage material conveying channel is communicated with a discharge outlet of the storage bin, and a first-stage material pushing spiral belt is coaxially mounted in the first-stage material conveying channel.

Further optimization: the second-stage material conveying assembly comprises a second-stage material conveying channel fixedly mounted on the mounting plate, the second-stage material conveying channel and the first-stage material conveying channel are arranged in parallel at intervals, and a second-stage material pushing spiral belt is coaxially mounted in the second-stage material conveying channel.

Further optimization: the middle material conveying channel is vertically arranged between the first-stage material conveying channel and the second-stage material conveying channel, the upper end of the middle material conveying channel is communicated with the discharge end of the first-stage material conveying channel, the lower end of the middle material conveying channel is communicated with the feed end of the second-stage material conveying channel, and the discharge end of the second-stage material conveying channel is communicated with the furnace end.

Further optimization: the driving assembly comprises a driving motor fixedly installed on the installation plate, and the power output end of the driving motor is respectively and rotatably connected with the central shaft of the first-stage pushing spiral belt and the central shaft of the second-stage pushing spiral belt through a transmission assembly.

Further optimization: the air duct system comprises an air inlet channel for conveying fresh air, a hot air conveying channel for conveying hot air generated in the combustion chamber to the outside of the furnace body, and an exhaust channel for exhausting flue gas generated in the combustion chamber out of the furnace body.

Further optimization: the air inlet channel comprises an air inlet pipe, one end of the air inlet pipe is communicated with an air inlet cavity in the furnace end mounting seat, the other end of the air inlet pipe is communicated with the external atmosphere, the furnace end mounting seat is fixedly mounted on the inner wall of the combustion chamber, the furnace end is fixedly mounted on the furnace end mounting seat, and an air inlet hole communicated with the air inlet cavity is formed in the outer surface of the furnace end.

Further optimization: the hot gas conveying channel comprises a circulating radiating pipe, the upper end of the circulating radiating pipe is communicated with a heat exchange cavity, the heat exchange cavity is arranged above the radiator, the radiator is fixedly arranged in a supporting plate above the furnace end, an air outlet communicated with the heat exchange cavity is formed in the furnace body, an impeller fan is arranged at the lower end of the circulating radiating pipe, and the air inlet end of the impeller fan is communicated with external air outside the furnace body.

Further optimization: the exhaust passage comprises an exhaust pipe arranged outside the combustion chamber, the upper end of the exhaust pipe is communicated with the upper part of the combustion chamber, the lower end of the exhaust pipe is communicated with an exhaust chamber, an exhaust fan is arranged above the exhaust chamber, the air inlet of the exhaust fan is communicated with the exhaust chamber, and the air outlet of the exhaust fan is communicated with the outside through an externally arranged exhaust pipe.

The above technical scheme is adopted in the utility model, think about ingeniously, rational in infrastructure, can burn in the automatic transport to the furnace end of fuel in the storage silo, realize automatic supplementary fuel, improve fuel combustion effect, and fuel can extrude in the bottom of furnace end, make fuel promote the rebound mutually, cause the coking when avoiding fireplace fuel feeding, guarantee the abundant burning of fuel, the utilization ratio of fuel has been improved, and the heat heatable radiator that produces during fuel burning, improve heat transfer rate through the radiator, then the air of heating passes through the air outlet and discharges, supply with indoor realization heating, improve the result of use, and overall structure is simple, convenient manufacturing, can improve the result of use greatly.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

fig. 2 is a front view of the overall structure in the embodiment of the present invention;

fig. 3 is a side view of the overall structure in an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3;

fig. 7 is a cross-sectional view taken along line D-D of fig. 6.

In the figure: 1-furnace body; 2-a storage bin; 3-a combustion chamber; 4-furnace end; 5-sealing the cover; 6, mounting a plate; 7-first-stage material conveying channel; 8-first-stage material pushing spiral belt; 9-a second-level material conveying channel; 10-secondary material pushing spiral belt; 11-intermediate delivery channel; 12-a drive motor; 13-a furnace end mounting base; 14-an air intake cavity; 15-air intake; 16-an air inlet pipe; 17-a heat sink; 18-a heat exchange cavity; 19-air outlet; 20-circulating radiating pipes; 21-impeller fan; 22-an igniter; 23-an exhaust pipe; 24-an exhaust chamber; 25-an exhaust fan; 26-flame barrier.

Detailed Description

Example (b): referring to fig. 1-7, a biomass combustion type stove comprises a stove body 1, a storage bin 2 and a combustion chamber 3 are arranged in the stove body 1, a stove head 4 is arranged in the combustion chamber 3, a feeding device for conveying fuel in the storage bin 2 into the stove head 4 for combustion is arranged below the storage bin 2, the feeding device comprises a first-stage material conveying assembly and a second-stage material conveying assembly, the first-stage material conveying assembly and the second-stage material conveying assembly are communicated with each other, a discharge end of the second-stage material conveying assembly is communicated with the stove head 4, and an air duct system for conveying fresh air, exhausting air and outputting hot air is respectively distributed in the stove body 1.

The storage bin 2 and the combustion chamber 3 are respectively arranged in the furnace body 1, and the storage bin 2 and the combustion chamber 3 are respectively arranged in parallel.

The top of storage silo 2 is located and is provided with the feed inlet on furnace body 1, articulated on the furnace body 1 have a closing cap 5 that is used for the shutoff feed inlet.

The below fixed mounting of storage silo 2 has mounting panel 6, the defeated material subassembly of one-level and the defeated material subassembly of second grade are fixed mounting respectively on mounting panel 6, install the drive assembly who is used for driving the defeated material subassembly of one-level and the defeated material subassembly work of second grade on the mounting panel 6.

The first-stage material conveying assembly comprises a first-stage material conveying channel 7 fixedly mounted on a mounting plate 6, a feed inlet of the first-stage material conveying channel 7 is communicated with a discharge outlet of the storage bin 2, and a first-stage material pushing spiral ribbon 8 is coaxially mounted in the first-stage material conveying channel 7.

The fuel stored in the storage bin 2 enters the primary material conveying channel 7 through the discharge port, and the primary material pushing spiral belt 8 rotates to push the fuel to move in the primary material conveying channel 7.

The second grade is failed the material subassembly and is included the defeated passageway 9 of second grade fixed mounting on mounting panel 6, the defeated passageway 9 of second grade is parallel and the interval is laid from top to bottom with the defeated passageway 7 of one-level, coaxial arrangement has the second grade to push away material spiral shell area 10 in the defeated passageway 9 of second grade.

The secondary material pushing screw belt 10 rotates to push the fuel to move in the secondary material conveying channel 9.

The middle material conveying channel 11 is vertically arranged between the first-stage material conveying channel 7 and the second-stage material conveying channel 9, the upper end of the middle material conveying channel 11 is communicated with the discharge end of the first-stage material conveying channel 7, and the lower end of the middle material conveying channel 11 is communicated with the feed end of the second-stage material conveying channel 9.

The discharge end of the second-stage material conveying channel 9 is communicated with the furnace end 4.

The fuel in the first-stage material conveying channel 7 is pushed by the first-stage material pushing spiral belt 8 to move to a position close to the middle material conveying channel 11, at the moment, the fuel enters the second-stage material conveying channel 9 through the middle material conveying channel 11, and then the fuel in the second-stage material conveying channel 9 moves to a position close to the furnace end 4 through the pushing of the second-stage material pushing spiral belt 10 and is stacked in the furnace end 4, so that the automatic fuel supplement of the furnace end 4 is realized.

The design is that the fuel in the primary conveying channel 7 moves to a position close to the middle conveying channel 11 by pushing the primary pushing screw belt 8, at the moment, the fuel in the primary conveying channel 7 freely falls into the middle conveying channel 11 under the action of self gravity, then the fuel in the middle conveying channel 11 enters the secondary conveying channel 9, the middle conveying channel 11 cannot be blocked by materials, the primary conveying channel 7 and the secondary conveying channel 9 can be separated, and the materials in the secondary conveying channel 9 cannot move back to the primary conveying channel 7.

At this time, after the feeding is stopped, no fuel exists in the intermediate delivery passage 11, so that the primary delivery passage 7 and the secondary delivery passage 9 can be completely separated.

And when the fuel in the second-stage material conveying channel 9 is pushed by the second-stage material pushing spiral belt 10 to move to a position close to the furnace end 4, the fuel in the second-stage material conveying channel 9 enters the furnace end 4 from the bottom of the furnace end 4, so that the fuel can be extruded at the bottom of the furnace end 4, the fuel is pushed to move upwards, coking is avoided when the fireplace fuel is fed, full combustion of the fuel is guaranteed, and the utilization rate of the fuel is improved.

The drive assembly comprises a drive motor 12 fixedly installed on the installation plate 6, and the power output end of the drive motor 12 is respectively connected with the central shaft of the first-stage pushing spiral belt 8 and the central shaft of the second-stage pushing spiral belt 10 in a rotating mode through a transmission assembly.

The transmission component comprises two transmission gears, and one ends of the central shafts of the first-stage pushing spiral belt 8 and the second-stage pushing spiral belt 10, which are close to the mounting plate 6, respectively penetrate through the mounting plate 6 and are fixedly connected with the corresponding transmission gears.

The power output end of the driving motor 12 is fixedly connected with a driving gear, and the driving gear is in transmission connection with the transmission gear through a transmission chain.

The driving motor 12 outputs power to drive the transmission gear to rotate through the driving gear and the transmission chain, and the transmission gear rotates to drive the corresponding first-stage pushing spiral belt 8 and the second-stage pushing spiral belt 10 to rotate for pushing fuel.

An igniter 22 is mounted on the burner 4, and a terminal of the igniter 22 is connected with an external power supply.

The igniter 22 is operative to ignite the fuel in the burner 4, causing the fuel to combust in the burner 4.

The igniter 22 is known in the art and is available directly from the market.

The burner 4 is fixedly mounted on a burner mounting seat 13, and the burner mounting seat 13 is fixedly mounted on the inner wall of the combustion chamber 3.

An air inlet cavity 14 is formed in the burner mounting seat 13, an air inlet hole 15 is formed in the outer surface of the burner 4, the air inlet hole 15 penetrates through the inner surface and the outer surface of the burner 4, and a cavity in the air inlet cavity 14 enters the burner 4 through the air inlet hole 15.

The air duct system comprises an air inlet channel for conveying fresh air, a hot air conveying channel for conveying hot air generated in the combustion chamber 3 to the outside of the furnace body 1, and an exhaust channel for exhausting flue gas generated in the combustion chamber 3 out of the furnace body 1.

The air inlet channel comprises an air inlet pipe 16 arranged on one side of the burner mounting seat 13, one end, close to the burner mounting seat 13, of the air inlet pipe 16 is communicated with the air inlet cavity 14, and the other end of the air inlet pipe 16 is communicated with the external atmosphere.

By the design, the air inlet cavity 14 is communicated with the external atmosphere through the air inlet pipe 16, so that the external atmosphere can enter the air inlet cavity 14 through the air inlet pipe 16, the air inlet cavity 14 is filled with fresh air, and the air in the air inlet cavity 14 enters the furnace end 4 through the air inlet holes 15 to help the fuel in the furnace end 4 to burn.

A supporting plate is fixedly arranged above the furnace end 4 in the combustion chamber 3, a radiator 17 is arranged above the supporting plate, and a heat exchange cavity 18 is distributed above the radiator 17.

The combustion of the fuel in the burner 4 exerts heat on the heat sink 17, which heat sink 17 is heated to heat the air in the heat exchange cavity 18.

An air outlet 19 is formed in the position, close to the heat exchange cavity 18, of the front end face of the furnace body 1, and the air outlet 19 is communicated with the heat exchange cavity 18.

The air heated by the radiator 17 in the heat exchange cavity 18 is exhausted through the air outlet 19 and supplied to the indoor space to realize heating.

The hot gas conveying channel comprises a circulating heat radiating pipe 20 arranged between the combustion chamber 3 and the storage bin 2, and the upper end of the circulating heat radiating pipe 20 is communicated with the heat exchange cavity 18.

The impeller fan 21 is installed at the lower end of the circulating radiating pipe 20, the air outlet end of the impeller fan 21 is communicated with the circulating radiating pipe 20, and the air inlet end of the impeller fan 21 is communicated with the outside air outside the furnace body 1.

The impeller fan 21 operates to suck air from the outside of the furnace body 1 and to feed the air into the heat exchange cavity 18 through the circulating radiating pipe 20, at which time the air exchanges heat with the radiator 17 to heat the air, and then the heated air is discharged through the air outlet 19 and supplied to the room for heating the room.

The exhaust passage comprises an exhaust pipe 23 arranged outside the combustion chamber 3, the upper end of the exhaust pipe 23 is communicated with the upper part of the combustion chamber 3, the lower end of the exhaust pipe 23 is communicated with an exhaust chamber 24, and the exhaust chamber 24 is arranged in the furnace body 1 and close to the lower position of the exhaust pipe.

An exhaust fan 25 is arranged above the exhaust chamber 24 in the furnace body 1, an air inlet of the exhaust fan 25 is communicated with the exhaust chamber 24, an air outlet of the exhaust fan 25 penetrates through the furnace body 1 and is provided with an external exhaust pipe, and the other end of the external exhaust pipe extends to the outside.

The exhaust fan 25 is used for sucking air in the exhaust chamber 24, so that negative pressure is formed in the exhaust chamber 24, the exhaust pipe 23 can be used for sucking smoke in the combustion chamber 3, and the smoke in the combustion chamber 3 is guided to the outside through the exhaust pipe 23, the exhaust chamber 24, the exhaust fan 25 and an external exhaust pipe, so that smoke discharge is realized.

A flame isolating plate 26 is arranged above the furnace end 4 in the combustion chamber 3, and the flame isolating plate 26 is fixedly arranged on the inner wall of the combustion chamber 3.

The flame isolation plate 26 can be used for shielding flame generated during fuel combustion in the furnace end 4, so that the flame is prevented from directly burning the supporting plate below the radiator 17, the service life of the furnace body 1 is prolonged, and the use cost is reduced.

The flame isolation plate 26 is a wearing part, so that when the flame isolation plate 26 is damaged due to long-term flame burning, the flame isolation plate 26 can be replaced.

A drawer type ash collecting box is detachably mounted below the furnace end 4 in the furnace body 1, and waste residues generated after fuel in the furnace end 4 is combusted fall into the drawer type ash collecting box for storage.

Supporting legs are respectively arranged at the bottom of the furnace body 1 close to four included angles of the furnace body.

When the biomass combustion type stove is used, the biomass combustion type stove can be installed indoors, then an air outlet of the exhaust fan 25 is communicated with the external exhaust pipe, fuel to be used is placed into the storage bin 2 to be stored, and materials stored in the storage bin 2 enter the primary material conveying channel 7 through the discharge hole.

Then the driving motor 12 works to drive the first-stage pushing screw belt 8 and the second-stage pushing screw belt 10 to rotate, the first-stage pushing screw belt 8 rotates to push the fuel in the first-stage conveying channel 7 to move to a position close to the middle conveying channel 11, at the moment, the fuel enters the second-stage conveying channel 9 through the middle conveying channel 11, then the fuel in the second-stage conveying channel 9 moves to a position close to the burner 4 through the pushing of the second-stage pushing screw belt 10 and is stacked in the burner 4, and the automatic fuel supplement of the burner 4 is realized.

The igniter 22 is operable to ignite the fuel in the burner 4 and the external atmosphere may enter the air intake cavity 14 through the air intake duct 16 and then enter the burner 4 through the air intake apertures 15 for providing oxygen-assisted fuel for combustion in the burner 4.

When the fuel in the burner 4 is combusted, heat is applied to the radiator 17, and at the moment, the radiator 17 is heated to heat the air in the heat exchange cavity 18.

The impeller fan 21 is then operated to draw air from outside the furnace body 1 and to feed it through the circulating radiating pipe 20 into the heat exchanging cavity 18, at which time the air is heat exchanged with the radiator 17 for heating the air, and then the heated air is discharged through the outlet 19 and supplied to the room for heating the room.

And the exhaust fan 25 works to suck the air in the exhaust chamber 24, so that negative pressure is formed in the exhaust chamber 24, the exhaust pipe 23 can be used for sucking the smoke in the combustion chamber 3, and the smoke in the combustion chamber 3 is guided to the outside through the exhaust pipe 23, the exhaust chamber 24, the exhaust fan 25 and an external exhaust pipe, so that the smoke is discharged.

For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. The utility model provides a biomass combustion type stove, includes furnace body (1), is provided with storage silo (2) and combustion chamber (3) in furnace body (1), is provided with furnace end (4), its characterized in that in combustion chamber (3): the below of storage silo (2) is provided with and is used for carrying the material feeding unit that burns in fuel in storage silo (2) to furnace end (4), and material feeding unit includes that the defeated material subassembly of one-level and the defeated material subassembly of second grade, and the defeated material subassembly of one-level and the defeated material subassembly of second grade communicate each other, and the discharge end and furnace end (4) intercommunication of the defeated material subassembly of second grade have laid air duct system in furnace body (1) respectively.

2. The biomass-fired furnace as recited in claim 1, wherein: the lower part of the storage bin (2) is fixedly provided with a mounting plate (6), the first-stage material conveying assembly and the second-stage material conveying assembly are respectively and fixedly mounted on the mounting plate (6), and the mounting plate (6) is provided with a driving assembly for driving the first-stage material conveying assembly and the second-stage material conveying assembly to work.

3. The biomass-fired furnace as recited in claim 2, wherein: the first-stage material conveying assembly comprises a first-stage material conveying channel (7) fixedly mounted on the mounting plate (6), a feed inlet of the first-stage material conveying channel (7) is communicated with a discharge outlet of the storage bin (2), and a first-stage material pushing spiral belt (8) is coaxially mounted in the first-stage material conveying channel (7).

4. The biomass-fired furnace as recited in claim 3, wherein: the second-stage material conveying component comprises a second-stage material conveying channel (9) fixedly mounted on the mounting plate (6), the second-stage material conveying channel (9) and the first-stage material conveying channel (7) are arranged in parallel from top to bottom at intervals, and a second-stage material pushing spiral belt (10) is coaxially mounted in the second-stage material conveying channel (9).

5. The biomass-fired furnace as recited in claim 4, wherein: the middle material conveying channel (11) is vertically arranged between the first-stage material conveying channel (7) and the second-stage material conveying channel (9), the upper end of the middle material conveying channel (11) is communicated with the discharge end of the first-stage material conveying channel (7), the lower end of the middle material conveying channel (11) is communicated with the feed end of the second-stage material conveying channel (9), and the discharge end of the second-stage material conveying channel (9) is communicated with the furnace end (4).

6. The biomass-fired furnace as recited in claim 5, wherein: the driving assembly comprises a driving motor (12) fixedly installed on the installation plate (6), and the power output end of the driving motor (12) is respectively and rotatably connected with the central shafts of the first-stage pushing spiral belt (8) and the second-stage pushing spiral belt (10) through a transmission assembly.

7. The biomass-fired furnace as recited in claim 6, wherein: the air duct system comprises an air inlet channel for conveying fresh air, a hot air conveying channel for conveying hot air generated in the combustion chamber (3) to the outside of the furnace body (1), and an exhaust channel for exhausting flue gas generated in the combustion chamber (3) out of the furnace body (1).

8. The biomass-fired furnace as recited in claim 7, wherein: air inlet channel includes intake pipe (16), the one end of intake pipe (16) and intake cavity (14) intercommunication in furnace end mount pad (13), the other end and the outside atmosphere intercommunication of intake pipe (16), furnace end mount pad (13) fixed mounting are on the inner wall of combustion chamber (3), furnace end (4) fixed mounting is on furnace end mount pad (13), offer on the surface of furnace end (4) inlet port (15) with intake cavity (14) intercommunication.

9. The biomass-fired furnace as recited in claim 8, wherein: the hot gas conveying channel comprises a circulating radiating pipe (20), the upper end of the circulating radiating pipe (20) is communicated with a heat exchange cavity (18), the heat exchange cavity (18) is arranged above a radiator (17), the radiator (17) is fixedly arranged on a supporting plate above a furnace end (4), an air outlet (19) communicated with the heat exchange cavity (18) is formed in a furnace body (1), an impeller fan (21) is installed at the lower end of the circulating radiating pipe (20), and the air inlet end of the impeller fan (21) is communicated with external air outside the furnace body (1).

10. The biomass-fired furnace as recited in claim 9, wherein: the exhaust passage comprises an exhaust pipe (23) arranged outside the combustion chamber (3), the upper end of the exhaust pipe (23) is communicated with the upper part of the combustion chamber (3), an exhaust chamber (24) is communicated with the lower end of the exhaust pipe (23), an exhaust fan (25) is installed above the exhaust chamber (24), an air inlet of the exhaust fan (25) is communicated with the exhaust chamber (24), and an air outlet of the exhaust fan (25) is communicated with the outside through a peripheral exhaust pipe.