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

Abstract

The invention provides a biomass burning furnace with smoke exhausted from the side and a method of use, wherein an outer casing is fixedly installed on the top of the furnace base, and a top cover is fixed on the top of the outer casing; a first vertical partition plate and the outer casing surround The inside of the formed cavity is provided with a pellet fuel supply device for delivering fuel; the discharge port of the pellet fuel supply device is opposite to the furnace, and the furnace is supported on the second vertical partition and the outer shell through the bottom partition plate The inside of the combustion chamber enclosed by the body; the two sides of the combustion chamber are symmetrically arranged with side flues, the bottom ends of the side flues are connected with the smoke box inside the furnace base, and the side walls of the smoke box are connected with the guide connected to the smoke system. By setting the flue on the side, extending to the bottom, and then leading out from the bottom flue, it is ensured that the flue gas during the combustion process is discharged from the bottom flue, the heat exchange channel is extended, the heat exchange area is increased, and the exchange rate is improved. The thermal area improves the utilization rate of thermal energy.

Description

Biomass burner with side-exhaust smoke and method of use

technical field

The invention belongs to the field of biomass burning furnaces, and particularly relates to a biomass burning furnace with smoke exhausted from the side and a method of using the same.

Background technique

The biomass combustion furnace with smoke exhausted on the side is widely used in the domestic heating process, and there are many types of existing heating furnaces on the market.

For example: CN 207990975 U discloses a biomass heating furnace with uniform heat dissipation, which ensures the uniform heat dissipation inside the furnace body during the combustion process by adopting a plurality of ventilation and heat dissipation channels, thereby greatly improving the heat exchange. efficiency, saving raw materials. However, it adopts the method of side exhaust. During the combustion process, the flue gas will be directly discharged from the side flue, which will lead to waste of heat.

CN 110513722 A discloses a high-efficiency heat-exchange biomass particle heating furnace, which adopts the flue design of U-shaped structure, thereby increasing the area of flue gas heat exchange and improving the heat exchange efficiency, so as to enhance the purpose of heating . The heating furnace with this structure also adopts the method of side exhaust. During the exhaust process, the flue gas is directly discharged, thereby causing waste of heat.

Moreover, our company also disclosed a kind of combustion furnace in the first-generation biomass fuel combustion furnace. This kind of combustion furnace also directly adopts the method of exhausting smoke from the upper part of the side, which also causes the loss of heat energy to a certain extent.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a biomass combustion furnace with side-exhaust smoke and a method of use. The side-exhaust biomass combustion furnace adopts biomass particles as fuel, and the flue is arranged on the side and extends to the bottom. part, and then led out from the bottom flue, thereby ensuring that the flue gas during the combustion process is discharged from the bottom flue, extending the heat exchange channel, increasing the heat exchange area, increasing the heat exchange area, and improving the utilization rate of heat energy; in addition , By setting a cooling fan on the side, the heat of the fuel tank can be discharged from the furnace body, which increases the heat dissipation and ensures the safety of the fuel tank; at the same time, it uses a table top and a removable furnace cover to ensure daily Cooking use.

In order to achieve the above technical features, the purpose of the present invention is achieved as follows: a biomass burning furnace with smoke exhausted from the side, which includes a furnace base, the top of the furnace base is fixedly installed with an outer casing, and the top of the outer casing is fixed There is a top cover; the inside of the outer casing is provided with a first vertical partition plate and a second vertical partition plate between the top cover and the furnace base, and the first vertical partition plate and the outer casing are enclosed by A pellet fuel supply device for delivering fuel is arranged inside the cavity; the discharge port of the pellet fuel supply device is opposite to the furnace, and the furnace is supported on the second vertical partition and the outer casing through the bottom partition. The inside of the combustion chamber is formed; the two sides of the combustion chamber are symmetrically arranged with side flues, the bottom ends of the side flues are communicated with the smoke box arranged inside the furnace base, and the side walls of the smoke box are connected with the smoke induction system connected.

An insulating 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 casing.

The pellet fuel supply device includes a fuel feed hopper fixed on the side wall of the outer casing, the bottom of the fuel feed hopper is butted with an inclined screw feed device, and the end of the bolt feed device is connected to the furnace through a lower barrel. Gallbladder is connected.

The screw feeding device includes a screw feeding cylinder installed obliquely inside the fuel cavity, and a screw conveying hinge cage is arranged inside the screw feeding cylinder. The top discharge port of the spiral feeding cylinder is connected with the feeding pipe, and the other end of the feeding pipe passes through the second vertical partition plate and is opposite to the furnace.

The bottom end of the furnace is supported and installed with a furnace bridge through a furnace bridge mounting seat, an ash extractor is provided directly below the furnace bridge, and the ash extractor can be pulled out and supported on the top of the furnace seat.

A cast iron top seat is installed on the top cover directly above the combustion chamber, the central part of the cast iron top seat is provided with a plurality of rings that can be uncovered, and a table top is supported on the top of the cast iron top seat.

A transparent observation window is provided on the side wall of the outer casing and located on the side where the combustion chamber is located, and a protective mesh cover is provided on the outer side wall of the outer casing located on the side where the side flue is located.

The smoke extraction system includes a first ground flue, the first ground flue is communicated with the smoke box, the other end of the first ground flue is communicated with the second ground flue after passing through the furnace base, and the first ground flue is communicated with the second ground flue. The outside of the second ground flue is provided with a flue protective cover, the end of the second ground flue is vertically connected with a vertical smoke pipe, and the top of the vertical smoke pipe is connected to the suction port of the induced draft fan, and the induced draft fan The air outlet is connected with a smoke exhaust pipe, and the other end of the smoke exhaust pipe is connected to the outdoor.

A cooling 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 cooling fan, and a controller is arranged directly above the cooling fan; the first vertical partition The top of the plate and the second vertical partition is provided with a top inclined cover plate.

The method for using a biomass burning furnace with smoke exhausted from the side includes the following steps:

Step 1: Add biomass pellet fuel from the fuel hopper to the fuel cavity;

Step 2: Start the pellet fuel supply device, drive the screw conveying cage through the deceleration motor, transport the pellet fuel to the feeding pipe through the screw conveying cage, and then enter the furnace from the feeding pipe;

Step 3: Start the igniter through the controller, ignite the pellet fuel through the igniter, and make it burn inside the furnace;

Step 4: The flue gas generated during the combustion process will be discharged from the side flue under the suction of the induced draft fan of the smoke extraction system, and enter the smoke box inside the furnace base, and enter the first ground from the smoke box. The flue and the second ground flue are finally discharged to the outside through the vertical flue pipe, induced draft fan and exhaust pipe;

Step 5: During the combustion process, the generated ash will fall through the furnace bridge to the ash extraction for collection;

Step 6: When the water needs to be boiled, lift off the top stove cover and place the kettle in the center of the stove cover to boil water.

The present invention has the following beneficial effects:

1. The biomass combustion furnace with smoke exhausted under the side uses biomass particles as fuel. By setting the flue on the side, extending to the bottom, and then leading out from the bottom flue, the flue gas during the combustion process is ensured from the bottom smoke. The heat exchange channel is extended, the heat exchange area is increased, the heat exchange area is increased, and the utilization rate of heat energy is improved; in addition, by setting a cooling fan on the side, the heat of the fuel tank can be discharged from the furnace body, which increases the efficiency of the furnace. The purpose of heat dissipation ensures the safety of the fuel tank; at the same time, it ensures daily cooking use by setting a table top and a detachable stove cover on the top.

2. The combustion chamber and the fuel silo can be separated from each other by the insulating cavity, thereby achieving the purpose of heat insulation and ensuring the safety of the fuel silo.

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

4. The automatic transportation of granular raw materials can be realized through the above-mentioned screw feeding device.

5. The above furnace is used to provide combustion space, and the ash extraction is used to collect dust generated during the combustion process.

6. Automatic smoke introduction and exhaust can be realized through the above-mentioned smoke introduction system.

7. The inside of the fuel cavity can be radiated by the above-mentioned cooling fan. Thus, the safety of the fuel inside the fuel cavity is ensured.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

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

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

FIG. 4 is the A-A view in FIG. 3 of the present invention.

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

Figure 6 is a rear view of the present invention.

FIG. 7 is the B-B view in FIG. 6 of the present invention.

FIG. 8 is a three-dimensional view from a first perspective after the desktop is removed according to the present invention.

FIG. 9 is a three-dimensional view from a second perspective after the desktop is removed according to the present invention.

FIG. 10 is a three-dimensional view from a third perspective after the desktop is removed according to the present invention.

In the figure: furnace base 1, protective net cover 2, outer casing 3, ventilation window 4, table top 5, flue protective cover 6, second ground flue 7, vertical smoke pipe 8, induced draft fan 9, smoke exhaust pipe 10 , furnace cover 11, ash extraction 12, top cover 13, cast iron top seat 14, transparent observation window 15, power cord 16, furnace gallbladder 17, bottom partition 18, furnace bridge mounting seat 19, furnace bridge 20, smoke box 21, The lowering barrel 22, the heat insulation cavity 23, the fuel cavity 24, the first ground flue 25, the cooling fan 26, the deceleration motor 27, the controller 28, the screw conveying cage 29, the screw feeding cylinder 30, the first vertical Partition plate 31 , second vertical partition plate 32 , top inclined cover plate 33 , side flue 34 .

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Example 1:

Referring to Figures 1-10, the biomass combustion furnace with smoke exhausted from the side, includes a furnace base 1, an outer casing 3 is fixedly installed on the top of the furnace base 1, and a top cover 13 is fixed on the top of the outer casing 3; Inside the outer casing 3, and between the top cover 13 and the furnace base 1, a first vertical partition 31 and a second vertical partition 32 are provided, and the first vertical partition 31 and the outer casing 3 surround The inside of the formed cavity is provided with a pellet fuel supply device for delivering fuel; the discharge port of the pellet fuel supply device is opposite to the furnace 17, and the furnace 17 is supported on the second vertical partition through the bottom partition 18. The inside of the combustion chamber enclosed by the plate 32 and the outer casing 3; side flues 34 are symmetrically arranged on both sides of the combustion chamber, and the bottom ends of the side flues 34 are communicated with the smoke box 21 inside the furnace base 1, The side wall of the smoke box 21 is connected with the smoke extraction system. This biomass combustion furnace with smoke exhausted from the side uses biomass particles as fuel. By setting the flue on the side and extending to the bottom, it is led out from the bottom flue, thereby ensuring that the flue gas during the combustion process is discharged from the bottom flue. , the heat exchange channel is extended, the heat exchange area is increased, the heat exchange area is increased, and the utilization rate of heat energy is improved; in addition, by setting a cooling fan on the side, the heat of the fuel tank can be discharged from the furnace body, which increases heat dissipation. The purpose is to ensure the safety of the fuel tank; at the same time, it ensures daily cooking use by adopting a table top and a detachable stove cover on the top.

Because the side flues 34 are arranged on both sides of the furnace duct 17, it is ensured that the flue gas is discharged downward from the side flue 34 during the exhaust process, so that the flue gas can stay in the side flue 34 for a long time. It is ensured that the heat of the flue gas can be dissipated as much as possible, thereby improving the heat exchange efficiency, and finally the flue gas is discharged from the first ground flue 25 and the 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 casing 1 . The thermal insulation cavity 23 can separate the combustion chamber from the fuel tank, thereby achieving the purpose of thermal insulation and ensuring the safety of the fuel tank.

Further, the particle fuel supply device includes a fuel feed hopper 35 fixed on the side wall of the outer casing 3, the bottom of the fuel feed hopper 35 is connected with an inclined screw feeding device, and the end of the bolt feeding device It is connected with the furnace 17 through the lower barrel 22 . The automatic addition and supply of fuel can be realized by the above-mentioned particulate fuel supply device.

Further, the screw feeding device includes a screw feeding cylinder 30 installed obliquely inside the fuel cavity 24, and a screw conveying hinge cage 29 is arranged inside the screw feeding cylinder 30. The rotating deceleration motor 27 is connected, the top discharge port of the screw feeding cylinder 30 is connected with the feeding tube 22, and the other end of the feeding tube 22 passes through the second vertical partition 32 and is opposite to the furnace 17 catch. The automatic conveying of granular raw materials can be realized by the above-mentioned screw feeding device. During the working process, the screw conveying cage 29 is driven by the deceleration motor 27, and the granular fuel in the screw conveying cage 29 is transported to the top discharge port. And automatically fall into the unloading pipe 22, and enter the furnace 17 to realize its combustion.

Further, a furnace bridge 20 is supported and installed at the bottom end of the furnace gallbladder 17 through the furnace bridge mounting seat 19, and an ash extractor 12 is provided directly below the furnace bridge 20, and the ash extractor 12 can be pulled out and supported on the furnace. Top of seat 1. The above furnace 17 is used to provide a combustion space, and the ash extraction 12 is used to collect the dust generated during the combustion process.

Further, a cast iron top seat 14 is installed on the top cover 13 just above the combustion chamber. The center of the cast iron top seat 14 is provided with a plurality of rings of furnace covers 11 that can be opened. The top of the cast iron top seat 14 supports a Desktop 5. The above-mentioned furnace cover 11 can be easily disassembled to realize the function of boiling water.

Further, a transparent observation window 15 is provided on the side wall of the outer casing 3 and located on the side where the combustion chamber is located, and a protective mesh cover 2 is provided on the outer side wall of the outer casing 3 located on the side where the side flue 34 is located. Through the above-mentioned transparent observation window 15, it is convenient to observe the combustion condition inside.

Further, the smoke extraction system includes a first ground flue 25, the first ground flue 25 communicates with the smoke box 21, and the other end of the first ground flue 25 passes through the furnace base 1 and communicates with the second ground flue. The flue 7 is connected, the outside of the second ground flue 7 is provided with a flue shield 6, the end of the second ground flue 7 is vertically connected with a vertical smoke pipe 8, and the vertical smoke pipe 8 The top of the fan is connected to the suction port of the induced draft fan 9, the air outlet of the induced draft fan 9 is connected to the smoke exhaust pipe 10, and the other end of the smoke exhaust pipe 10 is connected to the outdoors. The smoke extraction system can realize automatic smoke extraction and smoke extraction. It prolongs the discharge time of flue gas, thereby increasing the heat exchange area and improving the utilization rate of heat energy.

The above-mentioned smoke extraction system can ensure that the interior of the combustion chamber is always in a negative pressure state during the working process. At this time, the air will enter the combustion chamber from the positions of the ash extraction 12 and the screw feeding cylinder 30, and then provide air to the interior of the combustion chamber. At the same time, when the air passes through the screw feeding cylinder 30, it will be fully dissipated. It also serves the purpose of preventing anti-smoking.

Further, a cooling fan 26 is installed on the rear side wall where the fuel cavity 24 is located, a ventilation window 4 is symmetrically arranged on the side wall adjacent to the cooling fan 26 , and a controller is provided directly above the cooling fan 26 . 28; The top of the first vertical partition plate 31 and the second vertical partition plate 32 is provided with a top inclined cover plate 33. The inside of the fuel cavity 24 can be radiated by the above-mentioned cooling fan 26 . Thus, the safety of the fuel inside the fuel cavity 24 is ensured.

Example 2:

The method for using a biomass burning furnace with smoke exhausted from the side includes the following steps:

Step 1: add biomass pellet fuel from the fuel hopper 35 to the fuel cavity 24;

Step 2: Start the pellet fuel supply device, drive the screw conveying cage 29 through the deceleration motor 27, and transport the pellet fuel to the feeding pipe 22 through the screw conveying cage 29, and then enter the furnace 17 from the feeding pipe 22;

Step 3: Start the igniter through the controller 28, and ignite the particulate fuel through the igniter, so that it burns inside the furnace 17;

Step 4: The flue gas generated during the combustion process will be discharged from the side flue 34 under the suction of the induced draft fan 9 of the smoke induction system, and enter the smoke box 21 inside the furnace base 1, and be discharged from the smoke box 21. Enter the first ground flue 25 and the second ground flue 7, and finally discharge to the outdoors through the vertical smoke pipe 8, the induced draft fan 9 and the smoke exhaust pipe 10;

Step 5: During the combustion process, the generated ash will fall to the ash extraction 12 through the furnace bridge 20 for collection;

Step 6: When it is necessary to boil water, lift off the stove cover 11 on the top, and place the kettle in the center of the stove cover 11 to boil water.

Claims (10)

1. A biomass combustion furnace with smoke exhausted from the side surface, characterized in that it comprises a furnace base (1), an outer casing (3) is fixedly installed on the top of the furnace base (1), and the outer casing (3) is A top cover (13) is fixed on the top; a first vertical partition plate (31) and a second vertical partition plate (31) and a second vertical partition plate (31) and a second vertical partition plate (31) are arranged inside the outer casing (3) and located between the top cover (13) and the furnace base (1). A partition plate (32), a pellet fuel supply device for delivering fuel is provided inside the cavity enclosed by the first vertical partition plate (31) and the outer casing (3); a discharge port of the pellet fuel supply device Opposite to the furnace (17), the furnace (17) is supported by the bottom partition (18) inside the combustion chamber enclosed by the second vertical partition (32) and the outer casing (3); the combustion Side flues (34) are symmetrically arranged on both sides of the chamber, and the bottom end of the side flues (34) is communicated with a smoke box (21) inside the furnace base (1), and the smoke box (21) The side wall is connected to the smoke extraction system. 2 . The biomass combustion furnace with smoke exhausted from the side surface according to claim 1 , characterized in that an insulating cavity is formed between the first vertical partition plate ( 31 ) and the second vertical partition plate ( 32 ). 3 . (23), a fuel cavity (24) is formed between the first vertical partition plate (31) and the outer casing (1). 3. The biomass combustion furnace with smoke exhausting under the side surface according to claim 1, characterized in that: the particle fuel supply device comprises a fuel feeding hopper (35) fixed on the side wall of the outer casing (3), the The bottom of the fuel feeding hopper (35) is butted with an inclined screw feeding device, and the end of the bolt feeding device is butted with the furnace (17) through the lowering barrel (22). 4 . The biomass combustion furnace with smoke exhausted from the side surface according to claim 1 , wherein the screw feeding device comprises a screw feeding cylinder ( 30 ) installed obliquely inside the fuel cavity ( 24 ), and the screw feeding The inside of the barrel (30) is provided with a screw conveying hinge cage (29), the screw conveying hinge cage (29) is connected with a deceleration motor (27) for driving its rotation, and the top of the screw feeding cylinder (30) exits. The feeding port is connected with the feeding pipe (22), and the other end of the feeding pipe (22) passes through the second vertical partition plate (32) and is opposite to the furnace (17). 5. The biomass combustion furnace with smoke exhaust from the side according to claim 1 or 4, characterized in that: a furnace bridge (20) is supported and installed at the bottom end of the furnace gallbladder (17) through a furnace bridge mounting seat (19) , an ash extractor (12) is arranged directly below the furnace bridge (20), and the ash extractor (12) is slidably supported on the top of the furnace base (1). 6. The biomass combustion furnace with smoke exhaust from the side surface according to claim 1, characterized in that: a cast iron top seat (14) is installed on the top cover (13) directly above the combustion chamber, and the cast iron top seat (14) ) is provided with a plurality of rings of the furnace cover (11) which can be opened, and a table top (5) is supported on the top of the cast iron top seat (14). 7. The biomass combustion furnace with smoke exhaust from the side surface according to claim 1, characterized in that: a transparent observation window (15) is provided on the side wall of the outer casing (3) and located on the side where the combustion chamber is located , a protective net cover (2) is provided on the outer side wall of the outer casing (3) on the side where the side flue (34) is located. 8 . The biomass combustion furnace with side-down smoke exhaust according to claim 1 , wherein the smoke introduction system comprises a first ground flue ( 25 ), the first ground flue ( 25 ) and a smoke box. 9 . (21) is connected, and the other end of the first ground flue (25) is communicated with the second ground flue (7) after passing through the furnace base (1). The outside of the second ground flue (7) is arranged There is a flue protective cover (6), the end of the second ground flue (7) is vertically connected with a vertical flue pipe (8), and the top of the vertical flue pipe (8) is connected to the top of the induced draft fan (9). The air suction port is connected, the air outlet of the induced draft fan (9) is connected with the smoke exhaust pipe (10), and the other end of the smoke exhaust pipe (10) is connected to the outdoors. 9 . The biomass combustion furnace with smoke exhaust from the lower side according to claim 2 , wherein a cooling fan ( 26 ) is installed on the rear side wall where the fuel cavity ( 24 ) is located, and a cooling fan ( 26 ) is installed on the rear side wall where the fuel cavity ( 24 ) is located. 10 . ) adjacent side walls are symmetrically arranged with ventilation windows (4), and a controller (28) is arranged directly above the cooling fan (26); the first vertical partition (31) and the second vertical partition The top of the plate (32) is provided with a top inclined cover plate (33). 10. the using method of the biomass burning furnace of the described side lower smoke of any one of claim 1-9, it is characterized in that comprising the following steps: Step 1: Add biomass pellet fuel from the fuel feed hopper (35) to the fuel cavity (24); Step 2: Start the pellet fuel supply device, drive the screw conveying cage (29) through the gear motor (27), and transport the pellet fuel to the feeding pipe (22) through the screw conveying cage (29), and then from the feeding pipe ( 22) Enter into the furnace (17); Step 3: Start the igniter through the controller (28), and ignite the particulate fuel through the igniter, so that it burns inside the furnace (17); Step 4: The flue gas generated during the combustion process will be discharged from the side flue (34) under the suction of the induced draft fan (9) of the smoke extraction system, and enter the smoke box ( 21), and enter the first ground flue (25) and the second ground flue (7) from the smoke box (21), and finally pass through the vertical smoke pipe (8), the induced draft fan (9) and the smoke exhaust pipe (10) Discharge to the outside; Step 5: During the combustion process, the generated ash will fall through the furnace bridge (20) to the ash extraction (12) for collection; Step 6: When boiling water is required, lift off the stove cover (11) on the top, and place the kettle in the center of the stove cover (11) to boil water.

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