CN111895387A - Biomass combustion furnace with downward smoke discharging from side surface and use method - Google Patents

Abstract

The invention provides a biomass combustion furnace with downward smoke discharging on the side surface and a using method thereof, wherein the top of a furnace base is fixedly provided with an outer shell, and the top of the outer shell is fixedly provided with a top cover; a particle fuel supply device for conveying fuel is arranged in a cavity defined by the first vertical partition plate and the outer shell; the discharge port of the granular fuel supply device is butted with a furnace pipe, and the furnace pipe is supported in a combustion chamber defined by the second vertical partition plate and the outer shell through a bottom partition plate; the lateral flues are symmetrically arranged on two sides of the combustion chamber, the bottom ends of the lateral flues are communicated with a smoke box arranged inside the stove base, and the side wall of the smoke box is connected with a smoke guiding system. Through setting up the flue in the side to extend to the bottom, draw forth by the bottom flue again, and then guarantee that the flue gas in the combustion process is discharged from the bottom flue, prolonged the heat exchange passageway, increased heat exchange area, improved the utilization ratio of heat energy.

Description

Biomass combustion furnace with downward smoke discharging from side surface and use method

Technical Field

The invention belongs to the field of biomass combustion furnaces, and particularly relates to a biomass combustion furnace with downward smoke discharging on the side surface and a using method thereof.

Background

The biomass combustion furnace with the downward smoke exhaust from the side surface is widely applied in the household heating process, and the types of the existing heating furnaces on the market are more.

For example: the CN 207990975U discloses an even radiating living beings heating stove, and it has guaranteed the inside thermal even diffusion of furnace body in the combustion process through the mode that adopts a plurality of ventilation cooling passageways, and then great improvement heat exchange efficiency, saved the raw materials. However, the side smoke discharging mode is adopted, and in the combustion process, smoke is directly discharged from the side flue, so that heat waste is caused.

CN 110513722A discloses a high-efficient heat transfer living beings granule heating stove, and it adopts the flue design of U-shaped structure, and then has increased the area of flue gas heat transfer, has improved heat exchange efficiency to the mesh of reinforcing heating. The heating furnace with the structure also adopts a side smoke exhaust mode, and smoke is directly exhausted in the smoke exhaust process, so that heat waste is caused.

The company also discloses a combustion furnace in the first generation of biomass fuel combustion furnace, which directly adopts the mode of side upper smoke exhaust and also causes the loss of heat energy to a certain extent.

Disclosure of Invention

In order to solve the technical problems, the invention provides a biomass combustion furnace with downward smoke discharging on the side surface and a use method thereof, biomass particles are adopted as fuel in the biomass combustion furnace with downward smoke discharging on the side surface, and a flue is arranged on the side surface, extends to the bottom and is led out from the bottom flue, so that the smoke in the combustion process is discharged from the bottom flue, a heat exchange channel is prolonged, the heat exchange area is increased, and the utilization rate of heat energy is improved; in addition, the heat dissipation fan is arranged on the side face, so that the heat of the fuel bin can be discharged out of the furnace body, the purpose of increasing heat dissipation is achieved, and the safety of the fuel bin is ensured; meanwhile, the top of the oven is provided with a desktop and a detachable oven cover to ensure daily cooking.

In order to achieve the technical features, the invention is realized as follows: the biomass combustion furnace with downward smoke discharging on the side surface comprises a furnace base, wherein the top of the furnace base is fixedly provided with an outer shell, and the top of the outer shell is fixedly provided with a top cover; a first vertical clapboard and a second vertical clapboard are arranged inside the outer shell and between the top cover and the furnace base, and a particle fuel supply device for conveying fuel is arranged inside a cavity surrounded by the first vertical clapboard and the outer shell; the discharge port of the granular fuel supply device is butted with a furnace pipe, and the furnace pipe is supported in a combustion chamber defined by the second vertical partition plate and the outer shell through a bottom partition plate; the lateral flues are symmetrically arranged on two sides of the combustion chamber, the bottom ends of the lateral flues are communicated with a smoke box arranged inside the stove base, and the side wall of the smoke box is connected with a smoke guiding system.

And a heat insulation cavity is formed between the first vertical partition plate and the second vertical partition plate, and a fuel cavity is formed between the first vertical partition plate and the outer shell.

The granular fuel supply device comprises a fuel feed hopper fixed on the side wall of the shell, the bottom of the fuel feed hopper is butted with an obliquely arranged spiral feeding device, and the tail end of the bolt feeding device is butted with the furnace pipe through a discharging barrel.

The spiral feeding device comprises a spiral feeding barrel which is obliquely arranged in the fuel cavity, a spiral conveying hinge cage is arranged in the spiral feeding barrel and is connected with a speed reducing motor used for driving the spiral conveying hinge cage to rotate, a discharge port at the top of the spiral feeding barrel is connected with a discharging pipe, and the other end of the discharging pipe penetrates through a second vertical partition plate and is butted with the furnace pipe.

The bottom of the furnace pipe is supported and installed with a furnace bridge through a furnace bridge installation seat, an ash drawer is arranged under the furnace bridge, and the ash drawer can be drawn out and supported at the top of the furnace seat in a sliding manner.

The top cover right above the combustion chamber is provided with a cast iron top seat, the center part of the cast iron top seat is provided with a plurality of rings of furnace covers which can be opened, and the top of the cast iron top seat is supported with a table top.

And a transparent observation window is arranged on the side wall of the outer shell and positioned at one side of the combustion chamber, and a protective mesh enclosure is arranged on the outer side wall of the outer shell positioned at the side of the side flue.

The induced smoke system includes first ground flue, first ground flue is linked together with the smoke box, and the other end of first ground flue is linked together with second ground flue after passing the furnace seat, the outside of second ground flue is provided with the flue protection casing, the perpendicular intercommunication in end of second ground flue has vertical tobacco pipe, the top of vertical tobacco pipe links to each other with the inlet scoop of draught fan, the air outlet and the pipe of discharging fume of draught fan link to each other, the other end of the pipe of discharging fume communicates outdoors.

A heat radiation fan is installed on the rear side wall where the fuel cavity is located, ventilation windows are symmetrically arranged on the side wall adjacent to the heat radiation fan, and a controller is arranged right above the heat radiation fan; and top inclined cover plates are arranged at the tops of the first vertical partition plate and the second vertical partition plate.

The use method of the biomass combustion furnace with downward smoke discharging at the side comprises the following steps:

step 1: adding biomass pellet fuel from a fuel feed hopper to a fuel cavity;

step 2: starting the granular fuel supply device, driving the spiral conveying hinged cage through the speed reducing motor, conveying the granular fuel to the discharging pipe through the spiral conveying hinged cage, and then entering the furnace pipe from the discharging pipe;

and step 3: starting an igniter through a controller, and igniting the granular fuel through the igniter to enable the granular fuel to be combusted in the furnace pipe;

and 4, step 4: the smoke generated in the combustion process is discharged from the side flue under the suction action of an induced draft fan of the smoke inducing system, enters a smoke box inside the furnace base, enters the first ground flue and the second ground flue from the smoke box, and is finally discharged outdoors through the vertical smoke pipe, the induced draft fan and the smoke exhaust pipe;

and 5: during the combustion process, the generated furnace ash falls to the ash pump through the furnace bridge and is collected;

step 6: when water needs to be boiled, the furnace cover at the top is opened, and the kettle is placed in the center of the furnace cover to realize water boiling.

The invention has the following beneficial effects:

1. the biomass combustion furnace discharging smoke from the lower side surface adopts biomass particles as fuel, and the flue is arranged on the side surface, extends to the bottom and is led out from the bottom flue, so that the smoke in the combustion process is discharged from the bottom flue, a heat exchange channel is prolonged, the heat exchange area is increased, and the utilization rate of heat energy is improved; in addition, the heat dissipation fan is arranged on the side face, so that the heat of the fuel bin can be discharged out of the furnace body, the purpose of increasing heat dissipation is achieved, and the safety of the fuel bin is ensured; meanwhile, the top of the oven is provided with a desktop and a detachable oven cover to ensure daily cooking.

2. Can separate combustion chamber and bunker through thermal-insulated cavity mutually, and then play thermal-insulated purpose, guarantee the security of bunker.

3. The automatic addition and supply of fuel can be realized by the above particulate fuel supply device.

4. The spiral feeding device can realize automatic conveying of the granular raw materials.

5. The furnace pipe is used for providing a combustion space, and dust generated in the combustion process is collected through dust extraction.

6. The automatic smoke guiding and discharging system can realize automatic smoke guiding and discharging.

7. The heat dissipation fan can dissipate heat inside the fuel cavity. Thereby ensuring the safety of the fuel in the fuel cavity.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a three-dimensional block diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a left side view of the present invention.

Fig. 4 is a view a-a of fig. 3 of the present invention.

Fig. 5 is a right side view of the present invention.

Fig. 6 is a rear view of the present invention.

Fig. 7 is a view B-B of fig. 6 of the present invention.

FIG. 8 is a three-dimensional view from a first perspective of the present invention after the desktop has been removed.

FIG. 9 is a three-dimensional view from a second perspective of the present invention after the desktop has been removed.

FIG. 10 is a three-dimensional view from a third perspective of the present invention after the desktop has been removed.

In the figure: stove base 1, protective screen panel 2, shell body 3, ventilation window 4, desktop 5, flue protection casing 6, second ground flue 7, vertical tobacco pipe 8, draught fan 9, exhaust pipe 10, bell 11, grey 12 of taking out, top cap 13, cast iron footstock 14, transparent observation window 15, power cord 16, stove courage 17, bottom baffle 18, stove bridge mount pad 19, stove bridge 20, smoke box 21, feed cylinder 22, thermal-insulated cavity 23, fuel cavity 24, first ground flue 25, radiator fan 26, gear motor 27, controller 28, spiral conveying hinge cage 29, spiral feed cylinder 30, first vertical baffle 31, the vertical baffle 32 of second, top slope apron 33, side flue 34.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Example 1:

referring to fig. 1-10, the biomass combustion furnace with downward smoke discharging at the side comprises a furnace base 1, wherein an outer shell 3 is fixedly installed at the top of the furnace base 1, and a top cover 13 is fixed at the top of the outer shell 3; a first vertical partition plate 31 and a second vertical partition plate 32 are arranged inside the outer shell 3 and between the top cover 13 and the furnace base 1, and a granular fuel supply device for conveying fuel is arranged inside a cavity enclosed by the first vertical partition plate 31 and the outer shell 3; the discharge port of the granular fuel supply device is butted with a furnace pipe 17, and the furnace pipe 17 is supported in a combustion chamber formed by a second vertical partition plate 32 and the outer shell 3 through a bottom partition plate 18; side flues 34 are symmetrically arranged on two sides of the combustion chamber, the bottom ends of the side flues 34 are communicated with a smoke box 21 arranged inside the furnace base 1, and the side wall of the smoke box 21 is connected with a smoke guiding system. The biomass combustion furnace discharging smoke from the lower side surface adopts biomass particles as fuel, and the flue is arranged on the side surface, extends to the bottom and is led out from the bottom flue, so that the smoke in the combustion process is discharged from the bottom flue, a heat exchange channel is prolonged, the heat exchange area is increased, and the utilization rate of heat energy is improved; in addition, the heat dissipation fan is arranged on the side face, so that the heat of the fuel bin can be discharged out of the furnace body, the purpose of increasing heat dissipation is achieved, and the safety of the fuel bin is ensured; meanwhile, the top of the oven is provided with a desktop and a detachable oven cover to ensure daily cooking.

Because, it sets up side flue 34 in the both sides of furnace pipe 17, has guaranteed the in-process of discharging fume, and the flue gas is discharged downwards from side flue 34, and then makes the flue gas stop for a long time in side flue 34 inside, has guaranteed that the heat of flue gas can give off as far as, and then has improved heat exchange efficiency, finally discharges the flue gas from first ground flue 25 and second ground flue 7.

Further, an insulating cavity 23 is formed between the first vertical partition plate 31 and the second vertical partition plate 32, and a fuel cavity 24 is formed between the first vertical partition plate 31 and the outer shell 1. Can separate combustion chamber and bunker through thermal-insulated cavity 23 mutually, and then play thermal-insulated purpose, guarantee the security of bunker.

Further, the particulate fuel supply device comprises a fuel feed hopper 35 fixed on the side wall of the outer shell 3, the bottom of the fuel feed hopper 35 is butted with a spiral feeding device which is obliquely arranged, and the tail end of the spiral feeding device is butted with the furnace pipe 17 through the lower charging barrel 22. The automatic addition and supply of fuel can be realized by the above particulate fuel supply device.

Further, the spiral feeding device comprises a spiral feeding barrel 30 obliquely installed inside the fuel cavity 24, a spiral conveying hinged cage 29 is arranged inside the spiral feeding barrel 30, the spiral conveying hinged cage 29 is connected with a speed reducing motor 27 used for driving the spiral feeding barrel to rotate, a top discharge port of the spiral feeding barrel 30 is connected with the discharging pipe 22, and the other end of the discharging pipe 22 penetrates through a second vertical partition plate 32 and is connected with the furnace container 17 in a butting mode. The spiral feeding device can realize automatic conveying of the granular raw materials. In the working process, the screw conveying hinge cage 29 is driven by the speed reducing motor 27, and the granular fuel in the screw conveying hinge cage 29 is conveyed to the top discharge hole of the screw conveying hinge cage. And automatically falls into the blanking pipe 22 and enters the furnace pipe 17 to realize combustion.

Further, a furnace bridge 20 is supported and installed at the bottom end of the furnace pipe 17 through a furnace bridge installation seat 19, an ash drawer 12 is arranged under the furnace bridge 20, and the ash drawer 12 can be drawn out and slidably supported at the top of the furnace base 1. The furnace 17 is used for providing a combustion space and the ash extractor 12 is used for collecting dust generated in the combustion process.

Further, a cast iron top seat 14 is arranged on a top cover 13 which is positioned right above the combustion chamber, a plurality of rings of detachable furnace covers 11 are arranged at the central part of the cast iron top seat 14, and a table top 5 is supported at the top of the cast iron top seat 14. The furnace cover 11 can be conveniently disassembled, and the function of boiling water is realized.

Further, a transparent observation window 15 is arranged on the side wall of the outer shell 3 and located at the side where the combustion chamber is located, and a protection mesh enclosure 2 is arranged on the outer side wall of the outer shell 3 located at the side where the side flue 34 is located. The combustion inside the transparent observation window 15 is convenient to observe.

Further, the induced smoke system includes first ground flue 25, first ground flue 25 is linked together with smoke box 21, and first ground flue 25's the other end is linked together with second ground flue 7 after passing furnace base 1, the outside of second ground flue 7 is provided with flue protection casing 6, the perpendicular intercommunication of end of second ground flue 7 has vertical tobacco pipe 8, the top of vertical tobacco pipe 8 links to each other with the inlet scoop of draught fan 9, the air outlet of draught fan 9 links to each other with pipe 10 of discharging fume, the other end of pipe 10 of discharging fume communicates outdoors. The automatic smoke guiding and discharging system can realize automatic smoke guiding and discharging. The general of flue gas exhaust has been prolonged, and then increased heat exchange area, improved the utilization ratio of heat energy.

Through foretell smoking system in the course of the work, can guarantee that the combustion chamber is inside to be in the negative pressure state all the time, at this moment, the air can be followed ash and taken out 12, the position of screw feed section of thick bamboo 30 and entered into the combustion chamber, and then provides the air to the combustion chamber is inside, when the air passes through screw feed section of thick bamboo 30, can carry out abundant heat dissipation to it simultaneously. The purpose of preventing smoke back is also achieved.

Further, a heat radiation fan 26 is installed on the rear side wall where the fuel cavity 24 is located, ventilation windows 4 are symmetrically arranged on the side wall adjacent to the heat radiation fan 26, and a controller 28 is arranged right above the heat radiation fan 26; the top of the first and second vertical partitions 31 and 32 is provided with a top inclined cover plate 33. The inside of the fuel cavity 24 can be radiated by the radiator fan 26 described above. Thereby ensuring the safety of the fuel inside the fuel cavity 24.

Example 2:

the use method of the biomass combustion furnace with downward smoke discharging at the side comprises the following steps:

step 1: adding biomass pellet fuel from a fuel feed hopper 35 to the fuel cavity 24;

step 2: starting a particle fuel supply device, driving a spiral conveying hinged cage 29 through a speed reducing motor 27, conveying the particle fuel to a blanking pipe 22 through the spiral conveying hinged cage 29, and then entering a furnace pipe 17 from the blanking pipe 22;

and step 3: the igniter is started through the controller 28, and the granular fuel is ignited through the igniter to be combusted in the furnace pipe 17;

and 4, step 4: the smoke generated in the combustion process is discharged from the side flue 34 under the suction action of the induced draft fan 9 of the smoke inducing system, enters the smoke box 21 in the furnace base 1, enters the first ground flue 25 and the second ground flue 7 from the smoke box 21, and is finally discharged to the outside through the vertical smoke pipe 8, the induced draft fan 9 and the smoke exhaust pipe 10;

and 5: during the combustion process, the generated furnace ash falls to the ash extraction pipe 12 through the furnace bridge 20 to be collected;

step 6: when water needs to be boiled, the furnace cover 11 at the top is uncovered, and the kettle is placed at the central part of the furnace cover 11 to realize water boiling.

Claims (10)

1. Biomass combustion furnace that side was discharged fume down, its characterized in that: the furnace comprises a furnace base (1), wherein an outer shell (3) is fixedly arranged at the top of the furnace base (1), and a top cover (13) is fixed at the top of the outer shell (3); a first vertical partition plate (31) and a second vertical partition plate (32) are arranged in the outer shell (3) and between the top cover (13) and the furnace base (1), and a particle fuel supply device for conveying fuel is arranged in a cavity enclosed by the first vertical partition plate (31) and the outer shell (3); the discharge port of the granular fuel supply device is butted with a furnace pipe (17), and the furnace pipe (17) is supported in a combustion chamber enclosed by a second vertical partition plate (32) and the outer shell (3) through a bottom partition plate (18); lateral flues (34) are symmetrically arranged on two sides of the combustion chamber, the bottom ends of the lateral flues (34) are communicated with a smoke box (21) arranged inside the furnace base (1), and the side wall of the smoke box (21) is connected with a smoke guiding system.

2. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: an insulating cavity (23) is formed between the first vertical partition plate (31) and the second vertical partition plate (32), and a fuel cavity (24) is formed between the first vertical partition plate (31) and the outer shell (1).

3. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: the granular fuel supply device comprises a fuel feed hopper (35) fixed on the side wall of the outer shell (3), the bottom of the fuel feed hopper (35) is butted with an obliquely arranged spiral feeding device, and the tail end of the bolt feeding device is butted with the furnace pipe (17) through a lower charging barrel (22).

4. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: the spiral feeding device comprises a spiral feeding barrel (30) obliquely arranged in the fuel cavity (24), a spiral conveying hinged cage (29) is arranged in the spiral feeding barrel (30), the spiral conveying hinged cage (29) is connected with a speed reducing motor (27) used for driving the spiral feeding barrel to rotate, a top discharge hole of the spiral feeding barrel (30) is connected with a discharging pipe (22), and the other end of the discharging pipe (22) penetrates through a second vertical partition plate (32) and is in butt joint with the furnace pipe (17).

5. The biomass burning furnace for discharging smoke from the lower side of claim 1 or 4, wherein: the bottom of the furnace pipe (17) is supported and installed with a furnace bridge (20) through a furnace bridge installation seat (19), an ash pump (12) is arranged under the furnace bridge (20), and the ash pump (12) can be pulled out and supported at the top of the furnace seat (1) in a sliding manner.

6. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: a cast iron top seat (14) is arranged on a top cover (13) which is positioned right above the combustion chamber, a plurality of rings of furnace covers (11) which can be uncovered are arranged at the central part of the cast iron top seat (14), and a table top (5) is supported at the top of the cast iron top seat (14).

7. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: and a transparent observation window (15) is arranged on the side wall of the outer shell (3) and positioned at one side of the combustion chamber, and a protective mesh enclosure (2) is arranged on the outer side wall of the outer shell (3) positioned at the side of the side flue (34).

8. The biomass burning furnace for discharging smoke from the lower side of claim 1, wherein: the induced smoke system includes first ground flue (25), first ground flue (25) are linked together with smoke box (21), and the other end of first ground flue (25) is passed and is linked together with second ground flue (7) after stove seat (1), the outside of second ground flue (7) is provided with flue protection casing (6), the perpendicular intercommunication of end of second ground flue (7) has vertical tobacco pipe (8), the top of vertical tobacco pipe (8) links to each other with the inlet scoop of draught fan (9), the air outlet of draught fan (9) links to each other with pipe (10) of discharging fume, the other end of pipe (10) of discharging fume communicates outdoors.

9. The biomass burning furnace for discharging smoke from the lower side of claim 2, wherein: a heat radiation fan (26) is installed on the rear side wall where the fuel cavity (24) is located, ventilation windows (4) are symmetrically arranged on the side wall adjacent to the heat radiation fan (26), and a controller (28) is arranged right above the heat radiation fan (26); and top inclined cover plates (33) are arranged at the tops of the first vertical partition plate (31) and the second vertical partition plate (32).

10. The method of using a biomass burner with downward flue gas exhaust as claimed in any one of claims 1 to 9, characterized by comprising the steps of:

step 1: adding biomass pellet fuel from a fuel feed hopper (35) to the fuel cavity (24);

step 2: starting a particle fuel supply device, driving a spiral conveying hinged cage (29) through a speed reducing motor (27), conveying the particle fuel to a blanking pipe (22) through the spiral conveying hinged cage (29), and then entering a furnace pipe (17) from the blanking pipe (22);

and step 3: starting an igniter through a controller (28), and igniting the granular fuel through the igniter to enable the granular fuel to be combusted in the furnace pipe (17);

and 4, step 4: the smoke generated in the combustion process is discharged from the side flue (34) under the suction action of an induced draft fan (9) of the smoke guide system, enters the smoke box (21) inside the furnace base (1), enters the first ground flue (25) and the second ground flue (7) from the smoke box (21), and is finally discharged outdoors through the vertical smoke pipe (8), the induced draft fan (9) and the smoke discharge pipe (10);

and 5: during the combustion process, the generated furnace ash falls to the ash pump (12) through the furnace bridge (20) for collection;

step 6: when water needs to be boiled, the furnace cover (11) at the top is uncovered, and the kettle is placed at the central part of the furnace cover (11) to realize water boiling.

Images