Biomass pellet stove

Abstract

The utility model provides a kind of biomass pellet heating stove, belong to heating equipment technical field, including cabinet and the combustion bin and storage bin being arranged in cabinet;Auger feeding mechanism, it is located at the bottom of storage bin, for the material in storage bin is delivered to combustion bin;Feeding plate, the feed inlet of combustion bin is located at bottom, and feeding plate is inclined and placed in the feed inlet bottom position of the bottom of storage bin, and feeding plate is also located in the discharge end position of auger feeding mechanism, and auger feeding mechanism will push material to feeding plate, and material will enter combustion bin with inclined feeding plate and burn;Smoke flue, one end is connected with cabinet, and the other end is connected with the outer wall surface of cabinet, and smoke fan is further provided in smoke flue for leading flue gas out of cabinet, and the end of smoke flue connected with cabinet is higher than the base surface in cabinet;The utility model can reduce the fly ash that heating stove works outward, so as to improve the air quality around when using.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, specifically to a biomass pellet heating stove. Background Technology

[0002] Using biomass fuel instead of coal for heating reduces the smoke and other harmful gases produced during coal combustion. Furthermore, biomass fuel combustion does not pollute the environment, aligning with environmental protection principles. Biomass pellets can be made from agricultural raw materials such as rice husks, corn husks, and peanut shells through crushing and compression, resulting in a clean and aesthetically pleasing product. Moreover, with the continuous development of wood processing and the implementation of recycling concepts, waste wood chips and timber can also be used to produce biomass fuel, avoiding the environmental pollution caused by incineration and achieving waste reuse.

[0003] In the existing technology, the bottom of the heater has a collection bin for collecting the ash generated during combustion, and there is also a smoke exhaust structure connected to the bottom of the collection bin. This causes a large amount of fly ash to be discharged from the smoke exhaust structure during operation, thereby reducing the air quality near the heater.

[0004] Secondly, the heater is equipped with a heating air duct. The heat-conducting plate inside the heating air duct collects the heat from the combustion, and a fan blows the heat collected on the heat-conducting plate away to form the heating air duct. In this way, the hot air in the heating air duct blown out of the heater can achieve the heating effect. If the heat conduction effect inside the heater can be further improved, the temperature of the blown hot air will be higher, thereby further improving the heating effect of the heater. Utility Model Content

[0005] In view of this, the present invention provides a biomass pellet heater, which can reduce the fly ash emitted when the heater is working, thereby improving the surrounding air quality during use.

[0006] To solve the above-mentioned technical problems, this utility model provides a biomass pellet heating stove, including a casing and a combustion chamber and a storage chamber disposed inside the casing. The storage chamber is used to store materials, and the combustion chamber is used to burn the materials. It also includes an auger feeding mechanism located at the bottom of the storage chamber for conveying the materials in the storage chamber to the combustion chamber.

[0007] The feeding plate is located at the bottom of the combustion chamber. The feeding plate is tilted and placed at the bottom of the feeding port of the storage silo. The feeding plate is also located at the discharge end of the auger feeding mechanism. The auger feeding mechanism will push the material onto the feeding plate, and the material will enter the combustion chamber for combustion along with the tilted feeding plate.

[0008] The exhaust duct is connected to the inside of the chassis at one end and to the outer wall of the chassis at the other end. An exhaust fan is also installed in the exhaust duct to draw the smoke out of the chassis. The end of the exhaust duct connected to the chassis is higher than the bottom surface of the chassis. (Compared with the previous exhaust duct that was in direct contact with the bottom of the chassis, this can greatly prevent fly ash from being sucked out by the exhaust duct.)

[0009] The machine casing is also equipped with a material collection bin, which is located directly below the feeding plate to collect ash, making it easier to process the ash after combustion.

[0010] The end of the exhaust duct is located on the outer wall of the collection bin to further prevent fly ash from entering the exhaust duct.

[0011] The hopper is detachably fixed inside the chassis, making it easy to move the entire hopper out for ash disposal.

[0012] A heating air duct is also provided between the combustion chamber and the storage chamber. Several heat collection plates are installed in the heating air duct, and a cross-flow fan is also provided corresponding to the heat collection plate. The air outlet of the cross-flow fan is directed towards the heating air duct to blow out hot air.

[0013] There are multiple heat collection plates, which are installed throughout the combustion chamber, with one end inside the combustion chamber and the other end inside the heating air duct. They are arranged in an L-shape on the side wall of the combustion chamber.

[0014] The heat collection plate is made of manganese steel.

[0015] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Unique Exhaust Duct Design: Compared to previous designs where the exhaust duct directly contacts the bottom of the chassis, this structure significantly reduces the likelihood of fly ash being drawn out by the exhaust duct. During boiler operation, this effectively reduces the amount of fly ash discharged with the flue gas, lowers the dust content in the air near the boiler, significantly improves the surrounding air quality, creates a healthier and more comfortable environment for users, and reduces potential damage to the respiratory system of nearby personnel.

[0016] 2. Synergistic Effect of the Ash Collection Bin and Exhaust Duct: The ash collection bin, located directly below the feed plate within the chassis, is specifically designed to collect ash, facilitating subsequent ash processing. Simultaneously, the exhaust duct's end is located on the outer wall of the ash collection bin, further preventing fly ash from entering the exhaust duct. This structural design creates a relatively closed and efficient ash collection and exhaust system, ensuring that fly ash is concentrated in the ash collection bin and not discharged in large quantities into the exhaust duct, thus effectively maintaining the cleanliness of the air surrounding the heating furnace.

[0017] 3. Detachable collection bin for easy cleaning: The collection bin is detachably fixed inside the casing. This design greatly facilitates the user in removing the entire collection bin for cleaning the collected ash. Users can easily complete the ash disposal work without complicated operations, which not only improves cleaning efficiency but also further ensures the cleanliness of the furnace interior and surrounding environment, helping to maintain good air quality in the long term.

[0018] 4. The heat collection plate is matched with the crossflow fan: one end of the heat collection plate is located in the combustion chamber and the other end is located in the heating air duct. The open flame in the combustion chamber can directly burn the heat collection plate, thereby raising the temperature of the heat collection plate. This makes the temperature of the heat collection plate higher than that of existing heat collection plates. After the crossflow fan carries away the heat from the heat collection plate, the heating efficiency of the furnace can be improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a biomass pellet heating stove according to the present invention; Figure 2 This is a schematic diagram of the structure of the present invention, shown in a side sectional view.

[0020] Explanation of reference numerals in the attached figures: 1. Chassis; 2. Screw conveyor feeding mechanism; 3. Combustion chamber; 4. Storage silo; 5. Feeding plate; 6. Exhaust duct; 7. Collection silo; 8. Heating duct; 9. Heat collection plate; 10. Crossflow fan. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] This embodiment provides a biomass pellet heating stove, such as Figure 1-2 As shown: It includes a chassis 1 and a combustion chamber 3 and a storage chamber 4 installed inside the chassis 1. The combustion chamber 3 and the storage chamber 4 are arranged adjacent to each other. The bottom of the storage chamber 4 is also equipped with an auger feeding mechanism 2. The material in the storage chamber 4 can fall naturally into the auger feeding mechanism 2 under the action of gravity. The auger feeding mechanism 2 can transport the material into the combustion chamber 3 for combustion, thereby achieving the heating effect.

[0023] Specifically, the feed inlet of the combustion chamber 3 is located at the bottom. A feeding plate 5 is also provided at the bottom of the feed inlet of the combustion chamber 3. The feeding plate 5 is arranged at an angle and is located at the discharge port of the auger feeding mechanism 2. When the auger feeding mechanism 2 is working, it can push the material onto the feeding plate 5. Then, the material enters the combustion chamber 3 for combustion along the inclined surface of the feeding plate 5. The bottom of the auger feeding mechanism 2 is also provided with a smoke exhaust duct 6. One end of the smoke exhaust duct 6 is connected to the outer wall of the casing 1, and the other end is connected to the inside of the casing 1. A fan is also provided in the smoke exhaust duct 6. When the fan rotates, it can exhaust the smoke from the casing 1.

[0024] Preferably, the feeding plate 5 has multiple vertical mesh holes, so that the debris and ash after the material is burned will pass through the mesh holes and fall to the bottom of the casing 1. Furthermore, there is a height difference between the end of the exhaust duct 6 inside the casing 1 and the bottom of the casing 1 (the actual distance between the exhaust duct 6 and the bottom of the casing 1 is 10 cm). Thus, the exhaust duct 6 can prevent a large amount of dust and ash from the bottom of the casing 1 from entering the exhaust duct 6 during exhaust.

[0025] Furthermore, the chassis 1 is also equipped with a material collection bin, which is located directly below the feeding plate 5. In this way, the ash and debris passing through the feeding plate 5 can fall into the collection bin 7. The collection bin 7 can be used to collect the ash and debris, thereby preventing a large amount of dust from scattering inside the chassis 1, and also facilitating the treatment of the collected dust.

[0026] Furthermore, the section of the exhaust duct 6 is located on the side of the outer wall of the collection bin 7, which further prevents dust from the collection bin 7 from entering the exhaust duct 6. At the same time, the collection bin 7 is detachably fixed inside the casing 1, which makes it easy to move the entire collection bin 7 out of the casing 1, further facilitating the treatment of the collected dust. Correspondingly, the casing 1 is also equipped with a cabinet door, which can be opened to replace the collection bin 7.

[0027] It is worth mentioning that an L-shaped heating air duct 8 is formed between the combustion chamber 3 and the storage chamber 4. Multiple heat collection plates 9 are installed in the heating air duct 8. The heat collection plates are fixed on the combustion chamber. The heat collection plates 9 are also arranged in an L-shaped structure. The heat collection plates 9 can absorb the heat in the casing 1. In addition, a cross-flow fan 10 is installed in the casing 1. The cross-flow fan is located at the bottom of the heat collection plate. The air outlet of the cross-flow fan 10 faces the heat collection plate 9, so that the heat on the heat collection plate 9 can be blown away. In this way, the hot air blown out by the heating air duct 8 can be used for heating.

[0028] Preferably, the heat collection plate is installed through the side wall of the combustion chamber, with one end of the heat collection plate located inside the combustion chamber and the other end located inside the heating air duct. This means that the open flame inside the combustion chamber can directly burn the heat collection plate, thereby raising its temperature. This results in a higher temperature for the heat collection plate compared to existing heat collection plates. By using a crossflow fan to remove the heat from the heat collection plate, the heating efficiency of the furnace can be improved.

[0029] Working principle: When the heating furnace is in use, materials need to be stored in the storage hopper 4. Under the action of gravity, the materials fall into the auger feeding mechanism 2. Simultaneously, by controlling the operation of the auger feeding mechanism 2, the auger feeding mechanism 2 can push the materials onto the feeding plate 5. Under the action of the thrust, the materials will enter the combustion chamber 3 along the inclined surface of the feeding plate 5, where they can be burned. The open flame generated by the fuel combustion can directly burn the heat collection plate, which can heat up the heat collection plate. At the same time, the operation of the cross-flow motor can cause the airflow to blow the heat out from the heating air duct 8. After the materials in the combustion chamber 3 have finished burning, the ash will fall through the mesh on the feeding plate 5 into the collection hopper 7. This not only prevents a large amount of fly ash from being blown out with the flue gas, but also makes it easier to process the collected ash.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A biomass pellet heating stove, comprising a casing (1) and a combustion chamber (3) and a storage silo (4) disposed within the casing (1), characterized in that, Also includes: The screw conveyor (2) is located at the bottom of the storage bin (4) and is used to transport the material in the storage bin (4) to the combustion chamber (3); The feeding plate (5) and the inlet of the combustion chamber (3) are located at the bottom. The feeding plate (5) is tilted and placed at the bottom of the inlet of the storage chamber (4). The feeding plate (5) is also located at the discharge end of the auger feeding mechanism (2). The auger feeding mechanism (2) will push the material onto the feeding plate (5). The material will then enter the combustion chamber (3) for combustion along with the tilted feeding plate (5). The exhaust duct (6) is connected to the inside of the chassis (1) at one end and to the outer wall of the chassis (1) at the other end. The exhaust duct (6) is also equipped with an exhaust fan to draw the smoke out of the chassis (1). The end of the exhaust duct (6) connected to the chassis (1) is higher than the base surface inside the chassis (1).

2. A biomass pellet heating stove as described in claim 1, characterized in that, The chassis (1) is also equipped with a material collection bin (7), which is located directly below the feeding plate (5) and is used to collect ash.

3. A biomass pellet heating stove as described in claim 2, characterized in that, The end of the exhaust duct (6) is located on the outer wall of the collection bin (7).

4. A biomass pellet heating stove as described in claim 2, characterized in that, The collection bin (7) is detachably fixed inside the machine casing (1).

5. A biomass pellet heating stove as described in any one of claims 1-4, characterized in that, A heating air duct (8) is provided between the combustion chamber (3) and the storage chamber (4). Multiple heat collection plates (9) are provided in the heating air duct (8). The heat collection plates (9) are fixed on the combustion chamber. A cross-flow fan (10) is also provided corresponding to the heat collection plate (9). The air outlet of the cross-flow fan (10) faces the heating air duct (8) to blow out hot air.

6. A biomass pellet heating stove as described in claim 5, characterized in that, There are multiple heat collection plates (9), and the heat collection plates (9) are installed through the combustion chamber, that is, one end is located in the combustion chamber and the other end is located in the heating air duct, and the whole is arranged in an L-shape on the side wall of the combustion chamber (3).

7. A biomass pellet heating stove as described in claim 5, characterized in that, The heat collection plate (9) is made of manganese steel.

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