A biomass gasification device

Abstract

The utility model discloses a kind of biomass gasification devices, it is related to the field of biomass gasification device related equipment, including gasification furnace main body, the gasification furnace main body upper end is equipped with feed sieve, the feed sieve upper end is equipped with sweep material shaft, the sweep material shaft upper end is equipped with shaft gear cylinder. The utility model is equipped with gasification furnace main body, feed sieve, sweep material shaft, shaft gear cylinder, material limiting bin, gear shaft motor and feed hopper, by feed hopper, biomass raw material is poured into device, motor drives shaft gear cylinder rotates in material limiting bin, and then drive the synchronous rotation of lower end sweep material shaft, since sweep material shaft is close to the surface of feed sieve, its rotating process will sweep the biomass accumulated in material limiting bin, and the biomass that possibly caking or accumulation originally can be evenly flattened on the surface of feed sieve, after the biomass that is evenly distributed by feed sieve enters gasification furnace main body, gasification reaction occurs under the specific high-temperature control oxygen environment in furnace, and the gasification efficiency of device use is improved.

Description

Technical Field

[0001] This utility model relates to the field of biomass gasification devices, specifically an advanced biomass gasification device. Background Technology

[0002] With the continuous development of society, people's demand for energy is increasing day by day. Especially in recent years, with the rapid advancement of science and technology, the huge demand for energy in industrial development and people's social life in various countries has far exceeded expectations. The production method of over-reliance on fossil fuels is no longer able to keep up with the times and is not conducive to future social development. Therefore, the development of new energy and renewable energy has become the future development direction. Among the many new energy and renewable energy sources, biomass has the characteristics of large quantity, fast regeneration speed, diverse and simple acquisition methods, and rich variety, which are in line with the sustainable and healthy development path advocated by the world today and have a very broad development prospect. The energy that can be extracted and utilized from biomass is called biomass energy. It is the energy that is directly or indirectly converted into chemical energy through photosynthesis of plants and stored in biomass. Currently, the main research objects of biomass energy include straw, fruit shells, fruit pits, algae, crop residues, sawdust, leaves, wood blocks, animal manure, and household waste. These biomasses contain a variety of elements such as C, H, O, N, and P, and can be used as fuel feedstocks, new chemical and household materials, and also for the extraction of various medical drugs. In recent years, biomass gasification technology has made great progress. However, existing advanced biomass gasification devices still suffer from problems such as incomplete gasification due to biomass accumulation, and poor efficiency in the discharge of waste residue and the cleaning of residual tar after gasification. Therefore, an advanced biomass gasification device is needed.

[0003] Existing biomass gasification devices cannot effectively improve gasification efficiency, practicality, and maintenance efficiency during operation. Therefore, there is an urgent need for an advanced biomass gasification device. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide an advanced biomass gasification device to solve the problem that existing biomass gasification devices cannot effectively improve the gasification efficiency of the device during use, and cannot improve the practicality and maintenance efficiency of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gasifier body, comprising a gasifier main body, a feeding screen installed at the upper end of the gasifier main body, a sweeping shaft installed at the upper end of the feeding screen, a connecting gear cylinder installed at the upper end of the sweeping shaft, a limiting hopper installed at the outer end of the connecting gear cylinder, a geared motor installed at the upper end of the limiting hopper, and a feeding hopper installed at the upper end of the limiting hopper.

[0006] The lower end of the gasifier body is provided with an arc-shaped groove, the inner end of which is equipped with a slag receiving hopper, the lower end of which is equipped with a slag discharge cylinder, the inner end of which is equipped with a discharge shaft, and the front end of which is equipped with an external motor.

[0007] Preferably, the limiting hopper is threadedly connected to the main body of the gasifier, and the inner end surface of the limiting hopper is in close contact with the outer end surface of the feed screen.

[0008] Preferably, the connecting gear cylinder meshes with the gear shaft motor, and the connecting gear cylinder forms a rotating structure with the limiting bin through the gear shaft motor.

[0009] Preferably, the sweeping shaft forms a rotating structure with the limiting bin via a connecting gear cylinder, and the lower end surface of the sweeping shaft is in close contact with the upper end surface of the feeding screen.

[0010] Preferably, the slag receiving hopper is engaged with the gasifier body via an arc-shaped slot, and the arc-shaped slot is arranged in a circular array around the central axis of the gasifier body.

[0011] Preferably, the discharge shaft is connected to the slag discharge cylinder via an external motor to form a rotating structure, and the outer diameter of the discharge shaft is consistent with the inner diameter of the slag discharge cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention comprises a gasifier body, a feeding screen, a sweeping shaft, a connecting gear cylinder, a limiting bin, a geared motor, and a feeding hopper. Biomass raw materials are poured into the device via the feeding hopper and temporarily stored in the limiting bin under gravity. The limiting bin acts as a buffer space, preventing direct impact on the gasifier. After starting the geared motor, the motor drives the connecting gear cylinder to rotate within the limiting bin, which in turn drives the sweeping shaft at the lower end to rotate synchronously. Because the sweeping shaft is in close contact with the surface of the feeding screen, its rotation disperses the biomass accumulated in the limiting bin. Biomass that might otherwise clump or accumulate is evenly pushed onto the surface of the feeding screen, allowing it to fall evenly into the gasifier body. After the biomass is evenly distributed through the feeding screen, it enters the gasifier body and undergoes a gasification reaction under a specific high-temperature, controlled-oxygen environment, improving the gasification efficiency of the device. This invention, through its gasifier body, arc-shaped groove, ash hopper, ash discharge cylinder, discharge shaft, and external motor, addresses the issue that during biomass gasification, some incompletely decomposed organic matter forms tar. This tar easily adheres to the inner walls of the ash hopper, the ash discharge cylinder, and the surface of the discharge shaft. External force causes the ash hopper to rotate counterclockwise along the arc-shaped groove, freeing it from the groove's fixed constraint. As the ash hopper rotates, the connected ash discharge cylinder, discharge shaft, and external motor also simultaneously detach from the gasifier body. The detached ash hopper and ash discharge cylinder can then... Once moved to the designated area, operators can directly clean the residual tar on the inner wall and the surface of the discharge shaft. The cleaning process does not require contact with other parts of the gasifier body, allowing for a larger operating space and more thorough cleaning. After cleaning, the slag hopper is rotated clockwise along the arc-shaped slot to re-engage and fix it in place, thus restoring the working state of the slag discharge system and ensuring the continued stable operation of the device. With the help of an external motor driving the discharge shaft, the waste slag is mechanically pushed out, reducing manual operation and improving the practicality and maintenance efficiency of the device. Attached Figure Description

[0013] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention viewed from below; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Gasifier body; 2. Feed screen; 3. Sweeping shaft; 4. Connecting gear cylinder; 5. Limiting hopper; 6. Gear motor; 7. Feed hopper; 8. Arc-shaped slot; 9. Slag receiving hopper; 10. Slag discharge cylinder; 11. Discharge shaft; 12. External motor. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] The embodiments of this utility model will be described below based on its overall structure.

[0017] Please see Figures 1-4A type of biomass gasification device includes a gasifier body 1, a feed screen 2 mounted on the upper end of the gasifier body 1, a sweeping shaft 3 mounted on the upper end of the feed screen 2, a connecting gear cylinder 4 mounted on the upper end of the sweeping shaft 3, a limiting hopper 5 mounted on the outer end of the connecting gear cylinder 4, a geared motor 6 mounted on the upper end of the limiting hopper 5, and a feed hopper 7 mounted on the upper end of the limiting hopper 5. The limiting hopper 5 is threadedly connected to the gasifier body 1, and the inner end surface of the limiting hopper 5 is in close contact with the outer end surface of the feed screen 2. The connecting gear cylinder 4 and the geared motor 6 mesh with each other, and the connecting gear cylinder 4 and the limiting hopper 5 form a rotating structure through the geared motor 6. The sweeping shaft 3 forms a rotating structure through the connecting gear cylinder 4 and the limiting hopper 5, and the lower end surface of the sweeping shaft 3 is in close contact with the upper end surface of the feed screen 2. Biomass feedstock is poured into the device through the feed hopper 7. Under the action of gravity, the feedstock enters the limiting hopper 5 for temporary storage. At this time, the limiting hopper 5 acts as a buffer space to prevent the feedstock from directly impacting the gasifier. After the geared motor 6 is started, the motor drives the geared cylinder 4 to rotate in the limiting hopper 5, which in turn drives the sweeping shaft 3 at the lower end to rotate synchronously. Since the sweeping shaft 3 is in close contact with the surface of the feed screen 2, its rotation process will sweep away the biomass accumulated in the limiting hopper 5. The biomass that may have clumped or accumulated is evenly pushed onto the surface of the feed screen 2, so that the biomass falls evenly into the gasifier body 1. After the biomass is evenly distributed through the feed screen 2 and enters the gasifier body 1, it undergoes a gasification reaction in the specific high temperature and oxygen control environment inside the furnace, thereby improving the gasification efficiency of the device.

[0018] Please see Figures 1-4A type of biomass gasification device includes a gasifier body 1 with an arc-shaped groove 8 at its lower end. A slag hopper 9 is installed inside the arc-shaped groove 8, and a slag discharge cylinder 10 is installed at the lower end of the slag hopper 9. A discharge shaft 11 is installed inside the discharge cylinder 10, and an external motor 12 is installed at the front end of the discharge shaft 11. The slag hopper 9 is engaged with the gasifier body 1 via the arc-shaped groove 8, and the arc-shaped groove 8 is arranged in a circular array around the central axis of the gasifier body 1. The discharge shaft 11 and the slag discharge cylinder 10 form a rotating structure via the external motor 12, and the outer diameter of the discharge shaft 11 is consistent with the inner diameter of the slag discharge cylinder 10. During biomass gasification, some incompletely decomposed organic matter forms tar, which easily adheres to the inner walls of the slag hopper 9, the slag discharge cylinder 10, and the surface of the discharge shaft 11. External force is used to move the slag hopper 9 along the arc-shaped groove 8. The slot 8 rotates counterclockwise to release the ash from its fixed constraint. As the ash hopper 9 rotates, the ash discharge cylinder 10, the discharge shaft 11, and the external motor 12 connected to it will also detach from the gasifier body 1. After detachment, the ash hopper 9 and the ash discharge cylinder 10 can be moved to a designated area, where operators can directly clean the residual tar on their inner walls and the surface of the discharge shaft 11. The cleaning process does not require contact with other parts of the gasifier body 1, providing a larger operating space and more thorough cleaning. After cleaning, the ash hopper 9 is rotated clockwise along the arc-shaped slot 8 to re-engage and fix it in the slot, thus restoring the working state of the ash discharge system and ensuring the continued stable operation of the device. The external motor 12 drives the discharge shaft 11 to achieve mechanical pushing and discharge of waste ash, reducing manual operation and improving the practicality and maintenance efficiency of the device.

[0019] Working principle: During operation, biomass is first injected into the limiting bin 5 through the feed hopper 7. The geared motor 6 drives the geared cylinder 4 to rotate within the limiting bin 5, thereby driving the sweeping shaft 3 connected to the lower end of the geared cylinder 4 to evenly sweep away the accumulated biomass on the surface of the feed screen 2 in the limiting bin 5. The biomass is then evenly injected into the gasifier body 1 through the feed screen 2. The biomass is then gasified by the gasifier body 1, effectively preventing the problem of incomplete gasification caused by the accumulation of biomass during feeding, and improving the gasification efficiency of the device. After the gasification is completed, the waste residue falls into the slag receiving hopper 9 at the lower end, and the external motor 12 drives the discharge shaft 1. The rotation of shaft 1 causes the waste residue to tilt along the slag receiving hopper 9 into the slag discharge cylinder 10 connected laterally at the lower end. The waste residue is then discharged from the device through the lower opening of the slag discharge cylinder 10 by the rotation of the discharge shaft 11. The slag receiving hopper 9 can be rotated counterclockwise at the lower end of the gasifier body 1 to move away from the arc-shaped slot 8, thereby separating the slag receiving hopper 9 and the slag discharge cylinder 10 from the gasifier body 1. Then, the tar in the slag receiving hopper 9 and the slag discharge cylinder 10 can be treated separately, effectively improving the device's treatment effect on residual tar during long-term slag discharge. This completes the device's operation. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A type of biomass gasification device, comprising a gasifier body (1), characterized in that: The gasifier body (1) is equipped with a feeding screen (2) at the upper end, a sweeping shaft (3) is installed at the upper end of the feeding screen (2), a connecting gear cylinder (4) is installed at the upper end of the sweeping shaft (3), a limiting hopper (5) is installed at the outer end of the connecting gear cylinder (4), a gear motor (6) is installed at the upper end of the limiting hopper (5), and a feeding hopper (7) is installed at the upper end of the limiting hopper (5). The gasifier body (1) has an arc-shaped groove (8) at the lower end, a slag receiving hopper (9) is installed at the inner end of the arc-shaped groove (8), a slag discharge cylinder (10) is installed at the lower end of the slag receiving hopper (9), a discharge shaft (11) is installed at the inner end of the discharge shaft (10), and an external motor (12) is installed at the front end of the discharge shaft (11).

2. The biomass gasification device according to claim 1, characterized in that: The limiting hopper (5) is threadedly connected to the gasifier body (1), and the inner end surface of the limiting hopper (5) is in close contact with the outer end surface of the feed screen (2).

3. The biomass gasification device according to claim 1, characterized in that: The connecting gear cylinder (4) meshes with the gear motor (6), and the connecting gear cylinder (4) forms a rotating structure with the limiting bin (5) through the gear motor (6).

4. The biomass gasification device according to claim 1, characterized in that: The sweeping shaft (3) forms a rotating structure with the limiting bin (5) through the connecting gear cylinder (4), and the lower end surface of the sweeping shaft (3) is in close contact with the upper end surface of the feeding screen (2).

5. A biomass gasification device according to claim 1, characterized in that: The slag receiving hopper (9) is engaged with the gasifier body (1) through an arc-shaped slot (8), and the arc-shaped slot (8) is arranged in a ring array around the central axis of the gasifier body (1).

6. The biomass gasification device according to claim 1, characterized in that: The discharge shaft (11) is connected to the slag discharge cylinder (10) via an external motor (12) to form a rotating structure, and the outer diameter of the discharge shaft (11) is consistent with the inner diameter of the slag discharge cylinder (10).

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