Biomass particle negative pressure combustion device

Abstract

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a biomass particle negative-pressure combustion device which comprises a furnace body, a combustion plate horizontally and movably arranged in the furnace body, a gas inlet arranged at the front end of the furnace body, a fire spraying pipe connected with negative pressure arranged at the rear end of the furnace body and a gas inlet arranged on the side face of the furnace body. A combustion chamber is formed between the combustion plate and the upper end in the furnace body, and an ash chamber is formed between the combustion plate and the lower end in the furnace body; the air inlet is communicated with the interior of the furnace body and located below the combustion plate; it can be understood that the simple particle inlet and the heat conveying pipe are arranged at the front end and the rear end of the furnace body, heat generated by the combustion chamber is conveyed to the drying device in a negative pressure extraction mode, the structure is simple, and cost is low. And meanwhile, the combustion plate is driven by a transmission mechanism and motor power to do reciprocating motion during discharging at the particle inlet, ash residues are removed, smooth airflow is ensured, blockage is avoided, and the continuous combustion effect and efficiency are maintained.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combustion furnace, in particular, relate to a kind of biomass particle negative pressure combustion device. BACKGROUND

[0002] Biomass particle negative pressure combustion furnace is a kind of efficient, environmentally friendly combustion equipment, using biomass particle as fuel, using negative pressure combustion technology, the air entering through furnace bottom mixes with fuel and burns fully, flue gas is discharged through chimney, and heat is transferred to heating or hot water system through heat exchanger.Its characteristics include high efficiency, energy saving, environmental protection, low emission, automation and safety and reliability, suitable for household heating, industrial heating, agricultural drying and commercial heating and other various scenes;

[0003] When biomass particles are used for material drying, biomass particles need to be burned through combustion furnace, and then hot air flow is delivered to rotary drying cylinder, and material is fully contacted with hot air flow in rotary cylinder, so as to achieve the purpose of material drying.The combustion plate of the existing combustion furnace is horizontally placed in a mesh shape, and although the particles can fall through the holes after combustion, they cannot completely fall off, and sometimes there may be particle accumulation without complete combustion and new particles are added, and ash and particles accumulate on the combustion plate and are not easy to clean.

[0004] To solve the above problems, a biomass particle negative pressure combustion device is provided in the present application. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of biomass particle negative pressure combustion device, solve the problem raised in the above background.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a kind of biomass particle negative pressure combustion device, including furnace body, the front end of furnace body is equipped with the feed inlet of installation particle import, rear end is equipped with the fire nozzle of connection negative pressure, furnace body side is equipped with feeding port, further include:

[0008] Combustion plate is horizontally movably arranged in furnace body, combustion chamber is formed between combustion plate and upper end inside furnace body, and ash chamber is formed between combustion plate and lower end inside furnace body;

[0009] Air inlet is communicated with furnace body interior and located below combustion plate;

[0010] Transmission mechanism is arranged between particle import and combustion plate, and combustion plate reciprocating motion is driven by transmission mechanism to remove ash during particle import feeding process.

[0011] Further, the inside of the furnace body is fixedly provided with a support plate for supporting horizontal movement of the combustion plate, and a material guiding table is arranged at one end of the furnace body close to the particle inlet, and a horizontal movement space for the combustion plate is formed between the support plate and the material guiding table.

[0012] Further, a slag removing opening and an observation opening are further arranged on the furnace body, the slag removing opening is communicated with the ash chamber and is provided with a closing door, and the observation opening is communicated with the combustion chamber and is provided with a closing door.

[0013] Further, the particle inlet comprises an auger communicated with the feeding opening and a support frame fixed at one end of the auger away from the furnace body for motor installation.

[0014] Further, a support cover for supporting a transmission mechanism is arranged between the support frame and the furnace body, the transmission mechanism comprises a swing rod hinged in the support cover, a connecting rod hinged between the swing rod and the combustion plate, a driving block rotatably installed in the support cover and a transmission shaft arranged between the support frame and the driving block.

[0015] Further, a guide rod is fixed at the end of the combustion plate and slides in the furnace body, a spring is arranged between one end of the guide rod and the furnace body and abuts against each other, and a cylindrical rod is arranged at the end of the swing rod away from the connecting rod and intermittently contacts the driving block.

[0016] Further, the two flame spraying pipes are symmetrically arranged at the front and rear ends of the furnace body.

[0017] Further, a fireproof plate is fixed in the inside of the furnace body and contacts the support plate on the side away from the particle inlet, the top of the fireproof plate is higher than the combustion plate, and the flame spraying pipes are opposite to the particle inlet and are diagonally distributed with the air inlet.

[0018] The utility model has the following beneficial effects:

[0019] The utility model discloses a simple particle inlet and a heat delivery pipe are arranged at the front and rear ends of the furnace body, then the heat delivery pipe outwardly transports the heat generated in the combustion chamber to the drying device by the way of negative pressure air extraction, and has the advantages of simple structure and low cost.

[0020] The utility model discloses that the combustion plate is driven to reciprocate under the action of the transmission mechanism when the particle inlet feeds the material on the combustion plate, so that the ash and slag on the combustion plate are removed, the airflow of the combustion plate is smooth, the blockage is avoided, and the continuous combustion effect and efficiency are ensured.

[0021] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described in the following description are only some embodiments of the present application, and for the ordinary skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 It is an overall appearance structure schematic view of the present application.

[0024] Figure 2 It is Figure 1 A structure schematic view from the bottom;

[0025] Figure 3 It is Figure 1 A structure schematic view from the front and cut;

[0026] Figure 4 It is a structure schematic view of the transmission mechanism in the present application.

[0027] Figure 5 It is a structure schematic view from the front of embodiment 2 in the present application.

[0028] Figure 6 It is Figure 5 A structure schematic view from the side;

[0029] Figure 7 It is a structure schematic view from the front and cut of embodiment 2;

[0030] In the drawings, the component list represented by each number is as follows:

[0031] In the drawings: 1, furnace body; 101, support plate; 102, material guiding table; 103, slag cleaning port; 104, observation port; 105, fireproof plate; 11, feeding port; 12, flame spraying pipe; 13, feeding port; 14, combustion chamber; 15, combustion plate; 16, ash chamber; 17, air inlet; 18, particle inlet; 181, auger; 182, support frame; 183, motor; 2, support cover; 3, transmission mechanism; 31, swing rod; 311, cylindrical rod; 32, connecting rod; 33, driving block; 34, transmission shaft; 35, guide rod; 36, spring. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0033] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] Embodiment 1

[0035] Please refer to Figure 1 - Figure 4 As shown in the utility model is a kind of biomass particle negative pressure combustion device, including furnace body 1, furnace body 1 front end is equipped with the feed inlet 11 of installation particle import 18, rear end is equipped with the fire nozzle 12 of connecting negative pressure, furnace body 1 side is equipped with feeding port 13, feeding port 13 opens after being able to manually add biomass particle to the inside of furnace body 1, still include:

[0036] Combustion plate 15, horizontally active setting in furnace body 1, combustion plate 15 and furnace body 1 inside upper end form combustion chamber 14, combustion plate 15 and furnace body 1 inside lower end form ash chamber 16;

[0037] Inlet 17, with furnace body 1 inside communication and located combustion plate 15 below, inlet 17 plays the role of oxygen distribution, inlet 17 outside can also be provided with fan, for auxiliary combustion;

[0038] Transmission mechanism 3, it is arranged between particle import 18 and combustion plate 15, particle import 18 feeding process is driven combustion plate 15 reciprocating motion by transmission mechanism 3 to remove ash.

[0039] Wherein, furnace body 1 inside is fixed with the support plate 101 for supporting the horizontal activity of combustion plate 15, furnace body 1 inside is equipped with guide table 102 close to particle import 18 one end, support plate 101 and guide table 102 form horizontal activity space for combustion plate 15 between, guide table 102 upper end has inclined plane for guiding particle to combustion plate 15 in the embodiment, combustion plate 15 is also limited by the horizontal activity space formed between support plate 101 and guide table 102, guarantee its horizontal activity.

[0040] Wherein, furnace body 1 is also equipped with slag removal port 103 and observation port 104, slag removal port 103 is communicated with ash chamber 16 and is equipped with closure door, observation port 104 is communicated with combustion chamber 14 and is equipped with closure door, in the embodiment, the inside ash of ash chamber 16 can be cleaned through slag removal port 103, and the combustion condition inside furnace body 1 can be observed through observation port 104.

[0041] The particle inlet 18 comprises an auger 181 communicated with the feeding inlet 11 and a support frame 182 fixed at the end of the auger 181 away from the furnace body 1 for mounting the motor 183, in the embodiment, the support frame 182 is used to extend the output shaft of the motor 183, so as to facilitate the transmission with the transmission mechanism 3, and a shaft coupling can be used between the output shaft of the motor 183 and the feeding shaft of the auger 181.

[0042] The support frame 182 and the furnace body 1 are provided with a support cover 2 for supporting the transmission mechanism 3, the transmission mechanism 3 comprises a swing rod 31 hinged in the support cover 2, a connecting rod 32 hinged between the swing rod 31 and the combustion plate 15, a driving block 33 rotatably installed in the inside of the support cover 2, and a transmission shaft 34 arranged between the support frame 182 and the driving block 33, in the embodiment, the swing rod 31 is two and is distributed in the form of scissors, and is connected with the combustion plate 15 through two connecting rods 32, and the transmission shaft 34 is connected with the driving block 33 and the support frame 182 through a conical gear pair, so as to ensure the stable transmission of power.

[0043] The end of the combustion plate 15 is fixed with a guide rod 35 sliding in the furnace body 1, the guide rod 35 is provided with a spring 36 abutting each other between one end and the furnace body 1, and the end of the swing rod 31 away from the connecting rod 32 is provided with a cylindrical rod 311 intermittently contacting with the driving block 33, in the embodiment, when the driving block 33 contacts with the cylindrical rod 311, the inclined surface on the driving block 33 gradually drives the swing rod 31 to swing to one side, at this time, the spring 36 is compressed, and drives the combustion plate 15 to slide to one side, after the cylindrical rod 311 is separated from the driving block 33, the combustion plate 15 is driven to slide to the other side under the action of the spring 36, so as to realize the reciprocating movement of the combustion plate 15, and achieve the purpose of synchronous feeding and ash removal.

[0044] The two symmetrical spray pipes 12 are arranged at the front and rear ends of the furnace body 1, and in the embodiment, the two spray pipes 12 can uniformly distribute the combustion heat.

[0045] Embodiment 2

[0046] Please refer to Figure 4 - Figure 7 As shown in the figure, the inside of the furnace body 1 is fixed with a fireproof plate 105, and the fireproof plate 105 is in contact with the support plate 101 away from the particle inlet 18, the top of the fireproof plate 105 is higher than the combustion plate 15, the spray pipe 12 is opposite to the particle inlet 18 and is diagonally distributed with the air inlet 17, and in the embodiment, the single spray pipe 12 structure is suitable, which has high thermal efficiency and smooth airflow.

[0047] It can be understood that the simple particle inlet and heat pipe are arranged at the front and rear ends of the furnace body, the heat generated by the combustion chamber is transported to the drying device by using the negative pressure extraction mode, the structure is simple and the cost is low. Meanwhile, the combustion plate is driven to reciprocate by the transmission mechanism and the motor power when the particles are discharged from the particle inlet, the ash is removed, the airflow is smooth, the blockage is avoided, the continuous combustion effect and efficiency are maintained.

[0048] One specific application of the embodiment is that the combustion particles enter the upper surface of the combustion plate 15 from the particle inlet 18 and the feeding port 11, the particles are combusted in the combustion chamber 14, the airflow is driven by the negative pressure connected with the heat pipe 12 to enter from the air inlet 17, pass through the ash chamber 16 and the combustion plate 15, and then flow through the combustion chamber 14 and be transported to the drying device from the heat pipe 12, and the drying material inlet 19 is used for feeding the drying material;

[0049] When the particle inlet 18 is feeding: the motor 183 outputs to push the material on the combustion plate 15 by the auger 181, and in the process, the motor 183 also drives the driving block 33 to rotate through the transmission shaft 34, the driving block 33 rotates to simultaneously drive the two cylindrical rods 311 to rotate and be separated, the swing rod 31 swings and forms a reciprocating swing force under the action of the spring 36, so as to drive the combustion plate 15 to reciprocate in the feeding port 11, and the ash accumulated on the upper end of the combustion plate 15 is collected into the ash chamber 16.

[0050] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principles and practical application of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A biomass particle negative pressure combustion device, comprising a furnace body (1), the front end of the furnace body (1) is provided with a feeding port (11) for installing a particle inlet (18), the rear end is provided with a flame injection pipe (12) connected to a negative pressure, and the side of the furnace body (1) is provided with a feeding port (13), characterized in that, Also include: The combustion plate (15) is horizontally movably arranged in the furnace body (1), and a combustion chamber (14) is formed between the combustion plate (15) and the upper end of the interior of the furnace body (1), and an ash chamber (16) is formed between the combustion plate (15) and the lower end of the interior of the furnace body (1); The air inlet (17) is communicated with the interior of the furnace body (1) and is located below the combustion plate (15); The transmission mechanism (3) is arranged between the particle inlet (18) and the combustion plate (15), and the particle inlet (18) drives the combustion plate (15) to reciprocate during the feeding process to remove the ash.

2. The biomass particle combustion device of claim 1, wherein: The interior of the furnace body (1) is fixedly provided with a support plate (101) for supporting the horizontal movement of the combustion plate (15), and the interior of the furnace body (1) is provided with a material guiding table (102) near one end of the particle inlet (18), and a horizontal movement space for the combustion plate (15) is formed between the support plate (101) and the material guiding table (102).

3. The biomass particle combustion device of claim 2, wherein: The furnace body (1) is also provided with a slag removal port (103) and an observation port (104), the slag removal port (103) is communicated with the ash chamber (16) and is provided with a closing door, and the observation port (104) is communicated with the combustion chamber (14) and is provided with a closing door.

4. The biomass particle combustion device of claim 1, wherein: The particle inlet (18) includes an auger (181) communicated with the feeding port (11) and a support frame (182) fixed at the end of the auger (181) away from the furnace body (1) for mounting the motor (183).

5. The biomass particle combustion device of claim 4, wherein: The support frame (182) and the furnace body (1) are provided with a support cover (2) for supporting the transmission mechanism (3), the transmission mechanism (3) includes a swing rod (31) hinged in the support cover (2) and a connecting rod (32) hinged between the swing rod (31) and the combustion plate (15), and a driving block (33) rotatably installed in the interior of the support cover (2) and a transmission shaft (34) arranged between the support frame (182) and the driving block (33).

6. The biomass particle combustion device of claim 5, wherein: The end of the combustion plate (15) is fixed with a guide rod (35) sliding in the furnace body (1), a spring (36) is arranged between one end of the guide rod (35) and the furnace body (1) and abuts against each other, and the end of the swing rod (31) away from the connecting rod (32) is provided with a cylindrical rod (311) intermittently contacting with the driving block (33).

7. The biomass particle combustion device of claim 1, wherein: The two flame injection pipes (12) are symmetrically arranged at the front and rear ends of the furnace body (1).

8. The biomass particle combustion device of claim 1, wherein: The interior of the furnace body (1) is fixedly provided with a fireproof plate (105), and the fireproof plate (105) is in contact with the support plate (101) away from the particle inlet (18), the top of the fireproof plate (105) is higher than the combustion plate (15), the flame injection pipe (12) is opposite to the particle inlet (18) and is diagonally distributed with the air inlet (17).

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