Biomass fuel burner

Abstract

The utility model discloses a biomass fuel burner which comprises an air collecting box, an auger pipe and an air duct. The air collecting box comprises a flange plate and a back plate which are oppositely arranged; the back plate is fixedly connected with an air duct communicated with the inner cavity of the air collecting box; one end of the auger pipe penetrates through the flange plate and the back plate and is fixedly connected with a furnace end connecting flange; an inner cavity of the air collecting box is fixedly connected with a bent air collecting plate; the auger pipe is wrapped in a space defined by the air collecting plate and the side wall of the air collecting box by the air collecting plate; the air collecting plate divides a pipe orifice of the air duct into an upper part and a lower part; a hole groove is formed in the flange plate; and an igniter tube penetrating through the back plate and the furnace end connecting flange and the hole groove is fixedly connected between the back plate and the furnace end connecting flange. The utility model has the advantages that the combustion of fuel in the auger pipe can be prevented, and the effective utilization rate of the fuel is improved.

Description

Technical Field

[0001] This utility model relates to the field of combustion engine technology, and in particular to a biomass fuel combustion engine. Background Technology

[0002] In recent years, biomass fuel has gradually replaced coal as the heat source for tobacco curing barns. A biomass fuel burner is a device suitable for biomass fuel, consisting of a fuel supply system and a combustion system. Existing biomass fuel burners suffer from excessively high temperatures inside the auger tubes of the fuel supply system, leading to poor fuel combustion and low fuel utilization efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a biomass fuel burner that can prevent fuel combustion in the auger tube and improve the effective utilization rate of fuel.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is a biomass fuel burner, including an air collection box, an auger pipe, and an air duct; the air collection box includes a flange and a back plate arranged opposite to each other; an air duct communicating with the inner cavity of the air collection box is fixedly connected to the back plate; one end of the auger pipe passes through the flange and the back plate and is fixedly connected to a burner head connecting flange; a curved air collecting plate is fixedly connected to the inner cavity of the air collection box; the air collecting plate wraps the auger pipe within the space enclosed by the air collecting plate and the side wall of the air collection box; the air collecting plate divides the pipe opening of the air duct into upper and lower parts; a slot is opened on the flange; an igniter pipe passing through the back plate and the burner head connecting flange and the slot is fixedly connected between them.

[0005] Furthermore, a fan is fixedly connected to the other end of the air duct; an igniter is installed inside the igniter tube; an auger is installed inside the auger tube, and a drive motor is installed at one end of it.

[0006] Furthermore, an inner liner is installed on the burner head connecting flange; an outer liner is fitted over the inner liner, and one end of the outer liner is installed on the flange plate through the flange; there is a gap between the inner liner and the outer liner; a plugging ring is fixed to one end of the outer liner; the plugging ring seals the gap between one end of the inner liner and the outer liner.

[0007] Furthermore, a pusher pipe is fixedly connected between the back plate and the furnace head connecting flange; the telescopic end of the electric telescopic rod extends into the pusher pipe.

[0008] Furthermore, a bracket is mounted on the drive motor, and the electric telescopic rod is detachably mounted below the bracket.

[0009] Furthermore, an observation port is provided on the back plate, and a transparent observation lens is installed on the observation port.

[0010] Furthermore, the inner liner is made of cast iron.

[0011] Furthermore, the lower wall of the inner liner is provided with several ventilation holes.

[0012] Furthermore, the upper wall of the inner liner has several through holes.

[0013] Furthermore, the through hole is a tapered hole that is larger on the outside and smaller on the inside.

[0014] Furthermore, the lower end of the back plate is provided with a bend; a connecting plate is fixedly connected to the bottom of the air duct; and the bend and connecting plate are detachably mounted on the support frame.

[0015] Furthermore, a storage box is connected to the upper opening of the auger pipe.

[0016] The beneficial effects of this utility model are:

[0017] Biomass fuel enters through the top inlet of the auger pipe and is continuously pushed out from one end of the pipe by the auger. A blower continuously blows air into the air collection box, and an igniter ignites the biomass fuel. By installing an air collecting plate, the auger pipe is enclosed. Part of the air blown into the air collection box enters the enclosed space, cooling the auger pipe and preventing combustion of the fuel inside. The other part of the air enters the gap between the inner and outer liner through perforations, and then enters the inner liner through holes, aiding combustion and promoting heat flow. This invention prevents fuel combustion inside the auger pipe and improves fuel utilization efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0019] Figure 2 for Figure 1 A partial structural diagram after some components have been removed;

[0020] Figure 3 for Figure 2 A sectional view;

[0021] Figure 4 This is a schematic diagram of the inner liner structure of an embodiment.

[0022] In the diagram, 1-air collecting box, 2-auger pipe, 3-furnace head connecting flange, 4-flange, 401-groove, 5-back plate, 6-air collecting plate, 7-storage box, 8-air duct, 9-connecting plate, 10-electric telescopic rod, 11-igniter tube, 12-drive motor, 13-fan, 14-ash pushing pipe, 15-outer liner, 16-observation mirror, 17-inner liner, 18-through hole, 19-bend, 20-support frame, 21-bracket, 22-auger, 23-plug ring. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example

[0024] A biomass fuel burner, such as Figure 1-4 As shown, the system includes an air collection box 1, an auger pipe 2, and an air duct 8. The air collection box 1 includes a flange 4 and a back plate 5 arranged opposite to each other. An air duct 8 communicating with the inner cavity of the air collection box 1 is fixedly connected to the back plate 5. One end of the auger pipe 2 passes through the flange 4 and the back plate 5 and is fixedly connected to a burner head connecting flange 3. A curved air collection plate 6 is fixedly connected to the inner cavity of the air collection box 1. The air collection plate 6 encloses the auger pipe 2 within the space enclosed by the air collection plate 6 and the side wall of the air collection box 1. The air collection plate 6 divides the opening of the air duct 8 into upper and lower parts. A slot 401 is provided on the flange 4. An igniter pipe 11 passing through the back plate 5 and the burner head connecting flange 3 is fixedly connected between them.

[0025] Specifically, a fan 13 is fixedly connected to the other end of the air duct 8; an igniter is installed inside the igniter tube 11; an auger 22 is installed inside the auger tube 2, and a drive motor 12 is installed at one end of it.

[0026] Specifically, an inner liner 17 is installed on the burner connection flange 3; an outer liner 15 is fitted over the inner liner 17, and one end of the outer liner 15 is installed on the flange 4 via a flange; there is a gap between the inner liner 17 and the outer liner 15; a plug ring 23 is fixedly connected to one end of the outer liner 15; the plug ring 23 seals the gap between one end of the inner liner 17 and the outer liner 15.

[0027] The aforementioned biomass fuel burner, by setting up an air collecting plate 6, can enclose the auger pipe 2. Part of the air blown into the air collecting box 1 enters the enclosed space, which can cool the auger pipe 2 and prevent the fuel inside the auger pipe 2 from burning. The other part of the air enters the gap between the inner liner 17 and the outer liner 15 through the slot 401, and then enters the inner liner 17 through the holes on the inner liner 17, which can play a role in assisting combustion and promoting the flow of heat.

[0028] Specifically, to facilitate the cleaning of accumulated ash, a pusher pipe 14 is fixedly connected between the back plate 5 and the furnace head connecting flange 3; the telescopic end of the electric telescopic rod 10 extends into the pusher pipe 14.

[0029] Specifically, in order to facilitate the installation of the electric telescopic pole 10, a bracket 21 is installed on the drive motor 12, and the electric telescopic pole 10 can be detachably installed under the bracket 21.

[0030] Specifically, in order to facilitate observation of the fire status, an observation port is provided on the back plate 5, and a transparent observation mirror 16 is installed on the observation port.

[0031] Specifically, the inner liner 17 is made of cast iron. Previously, the inner liner 17 was made of 310S steel, which was more expensive; changing it to cast iron effectively reduces costs.

[0032] Specifically, the lower wall of the inner liner 17 has several ventilation holes.

[0033] Specifically, the upper wall of the inner liner 17 has several through holes 18. Before the improvement, the inner liner 17 only had ventilation holes on the lower wall. After the improvement, through holes 18 were added to the upper wall, which can serve the dual purpose of ventilation and heat dissipation.

[0034] Specifically, through hole 18 is a tapered hole with a larger outer diameter and a smaller inner diameter, which can increase the ventilation volume.

[0035] Specifically, for ease of installation, the lower end of the back panel 5 is provided with a bend 19; the bottom of the air duct 8 is fixedly connected to a connecting plate 9; and the back panel 5 can be detachably installed on the support frame 20 via the bend 19 and the connecting plate 9.

[0036] Specifically, a storage box 7 is connected to the upper opening of the auger pipe.

[0037] How the example works:

[0038] The biomass fuel is placed in the storage tank 7. The drive motor 12 and the blower 13 are turned on. The drive motor 12 drives the auger 22 to rotate, pushing the biomass fuel to move inside the auger tube. The blower 13 continuously blows air into the air collection box 1 through the air duct 8. The igniter ignites the biomass fuel. By setting up an air collection plate, the auger tube 2 can be enclosed. Part of the air blown into the air collection box 1 enters the enclosed space, which can cool the auger tube 2 and prevent the fuel inside the auger tube 2 from burning. The other part of the air enters the gap between the inner liner 17 and the outer liner 15 through the slot 401, and then enters the inner liner 17 through the vent and through hole 18 on the inner liner 17, which can play a role in combustion and promoting heat flow.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A biomass fuel burner, characterized by: The utility model provides a kind of stove, including wind collecting box (1), auger pipe (2), air duct (8);Wind collecting box (1) includes oppositely arranged flange (4) and backplate (5);Backplate (5) is fixedly connected with air duct (8) communicated with the inner chamber of wind collecting box (1);The one end of the auger pipe (2) penetrates flange (4) and backplate (5), and is fixedly connected with furnace end connecting flange (3);The inner chamber of the wind collecting box (1) is fixedly connected with the curved wind collecting plate (6);The auger pipe (2) is wrapped in the space enclosed by wind collecting plate (6) and the lateral wall of wind collecting box (1);Wind collecting plate (6) divides the pipe orifice of air duct (8) into two parts;Flange (4) is provided with hole slot (401);Backplate (5) and furnace end connecting flange (3) are fixedly connected with igniter tube (11) penetrating both and hole slot (401).

2. The biomass fuel burning machine according to claim 1, wherein: The other end of the air duct (8) is fixedly connected with fan (13);Igniter is installed in the igniter tube (11);The auger (22) is installed in the auger pipe (2), and the one end of the auger (22) is installed with driving motor (12).

3. The biomass fuel burner according to claim 1, wherein: The furnace end connecting flange (3) is installed with inner container (17);Outer container (15) is sleeved outside inner container (17), and one end is installed on flange plate (4) by flange;There is gap between the inner container (17) and outer container (15);One end of the outer container (15) is fixedly connected with blocking ring (23);The gap between the one end of the inner container (17) and the outer container (15) is closed by the blocking ring (23).

4. The biomass fuel burner according to claim 2, wherein: The backplate (5) and furnace end connecting flange (3) are fixedly connected with push ash pipe (14) penetrating between them;The telescopic end of electric telescopic rod (10) is inserted into the push ash pipe (14).

5. The biomass fuel burner according to claim 4, wherein: The driving motor (12) is installed with support (21), and the electric telescopic rod (10) is detachably installed below the support (21).

6. The biomass fuel burner according to claim 1, wherein: The backplate (5) is provided with observation port, and the observation port is installed with transparent observation mirror (16).

7. The biomass fuel burner according to claim 3, wherein: The material of the inner container (17) is cast iron, and the lower wall of the inner container (17) is provided with a plurality of ventilation holes.

8. The biomass fuel burner according to claim 3, wherein: The upper wall of the inner container (17) is provided with a plurality of through holes (18).

9. The biomass fuel burner according to claim 1, wherein: The lower end of the backplate (5) is provided with bending part (19);The bottom of the air duct (8) is fixedly connected with connecting plate (9);Bending part (19) and connecting plate (9) can be detachably installed on support frame (20).

10. The biomass fuel burner according to claim 1, characterized by: The upper opening of the auger pipe is connected with storage tank (7).

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