A dual-chamber biomass pyrolysis gasification furnace

Abstract

The present invention discloses a dual-chamber biomass pyrolysis and gasification furnace, comprising a furnace body; a discharge assembly, the discharge assembly being arranged at the bottom of the furnace body; wherein the furnace body is divided into a pyrolysis and gasification chamber and a burnout chamber by a partition inside the furnace body; the discharge assembly comprises a grate arranged at the bottom of the furnace body and pusher baffles both arranged on the grate; sealing covers communicating with the furnace body are provided on both sides of the grate; the length of the sealing covers is greater than or equal to the spacing between the pusher baffles; and the spacing between the sealing covers and the grate is the same as the height of the pusher baffles. By using the pyrolysis and gasification chamber, the burnout chamber, and the discharge assembly in combination, pyrolysis and gasification are achieved thoroughly, resources are saved, ash discharge is smooth, processing efficiency is improved, and the reaction is stable.

Description

Technical Field

[0001] The invention relates to the field of biomass pyrolysis and gasification furnace devices, in particular to a double-chamber biomass pyrolysis and gasification furnace. Background Art

[0002] Biomass pyrolysis and gasification is a process in which, under certain thermodynamic conditions, with the help of part of the air (or oxygen) and water vapor, the polymers of biomass undergo pyrolysis, oxidation, and reduction reforming reactions, and are ultimately converted into combustible gases such as carbon monoxide, hydrogen, and low molecular weight hydrocarbons. It is a commonly used way to generate energy.

[0003] Due to the special structure of the existing biomass pyrolysis and gasification furnace, biomass raw materials will accumulate after entering it, resulting in incomplete pyrolysis and gasification of the biomass, leading to waste of resources; and ash discharge is not smooth, affecting processing efficiency; and the existing technology has problems such as unstable reaction.

[0004] For example, a biomass gasifier disclosed in a Chinese patent document has a publication number of CN201424462. In this patent, a biomass gasifier is disclosed, wherein a furnace cover (3) and a gasifier exhaust pipe (5) are provided on the upper part of a gasifier body (1), the gasifier exhaust pipe (5) is connected to a gas purifier (2) and flows into the gas purifier (2); an air inlet (4), a gasifier dust outlet (6) and a gasifier slag removal port (11) are provided on the lower part of the gasifier body (1); the air inlet (4) flows into the lower part of the gasifier body (1), and a mesh cover (7) is provided on the exhaust port of the air inlet (4); a dust removal net (9) is provided in the middle and lower part of the gas purifier (2); a gas outlet pipe (8) is provided on the top of the gas purifier (2), and a purifier slag removal pipe (10) is provided on the bottom of the gas purifier (2). This patent has the problem of unsmooth ash discharge, which easily leads to accumulation and waste of resources. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a method of using a pyrolysis gasification chamber, a burnout chamber and a discharge assembly in combination; the pyrolysis gasification is thorough, saving resources; and the ash discharge is smooth, thereby improving processing efficiency and stabilizing the reaction.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A dual-chamber biomass pyrolysis and gasification furnace, comprising a furnace body; a discharge assembly, wherein the discharge assembly is arranged at the bottom of the furnace body; wherein the furnace body is divided into a pyrolysis and gasification chamber and a burnout chamber by a partition inside the furnace body; the discharge assembly comprises a grate arranged at the bottom of the furnace body and pusher baffles both arranged on the grate; sealing covers are provided on both sides of the grate and connected to the furnace body; the length of the sealing cover is greater than or equal to the spacing between the pusher baffles; and the spacing between the sealing cover and the grate is the same as the height of the pusher baffle. The above-mentioned furnace body includes two chambers with different functions, a pyrolysis and gasification chamber and a burnout chamber. The material enters the above-mentioned pyrolysis and gasification chamber through a partition for pyrolysis, and is discharged into the above-mentioned burnout chamber under the action of the above-mentioned discharge assembly for burnout. This operation ensures that the material in the above-mentioned pyrolysis and gasification chamber will not accumulate, ensures the degree of pyrolysis and gasification, and saves resources; the above-mentioned discharge assembly includes a grate and a push baffle evenly spaced on the above-mentioned grate. The above-mentioned push baffle can be arranged perpendicular to the above-mentioned grate or at a certain angle. The above-mentioned grate is arranged inside the above-mentioned furnace body and is connected to the furnace body on both sides. A sealing cover is provided, which ensures the sealing between the sealing cover and the above-mentioned furnace body, ensures the stability of the reaction, has a simple structure and significant effect; the length of the above-mentioned sealing cover is greater than or equal to the distance between adjacent above-mentioned pushing baffles, and the distance between the above-mentioned sealing cover and the above-mentioned grate is the same as the height of the above-mentioned pushing baffle. During the operation of the grate, the internal sealing can be ensured by the above-mentioned pushing baffle. The structure is simple, easy to use, and ensures the stability of the reaction; at the same time, the distance between the above-mentioned partition and the above-mentioned grate is consistent with the height of the above-mentioned pushing baffle, which can effectively push the material and ensure sufficient combustion.

[0008] Furthermore, a wind chamber adapted to the furnace body is provided at the bottom of the grate, ensuring sufficient pyrolysis and reasonable structural arrangement.

[0009] Furthermore, the cross section of the sealing cover is arranged in an arc shape or an elongated strip shape. The arc shape can reduce the length of the grate, reduce the floor space, and reduce production costs. When the elongated strip shape is arranged, a certain period of cooling can be performed when the waste is discharged, thereby ensuring production safety.

[0010] Furthermore, a slag collecting area is provided at the bottom of the grate, which is arranged at the end of the grate to facilitate the discharge of waste and improve production efficiency.

[0011] Furthermore, the air chamber includes a gasification air chamber and a burnout air chamber, which correspond to the pyrolysis gasification chamber and the burnout chamber respectively and can be controlled independently, thereby ensuring accurate control and reducing usage costs.

[0012] Furthermore, a feed port is provided on the top of the pyrolysis gasification chamber, which is convenient for feeding and reasonably arranged.

[0013] Furthermore, a flexible sealing block is provided on the top of the push baffle, which ensures the service life of the sealing cover, further ensures the sealing of the interior and the stability of the reaction.

[0014] Furthermore, the burnout chamber is provided with a heat recovery system, which can fully recover heat without wasting resources.

[0015] Compared with the prior art, the advantages of the present invention are: complete pyrolysis and gasification, saving resources; smooth ash discharge, improved processing efficiency and stable reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a dual-chamber biomass pyrolysis gasification furnace of the present invention.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0019] Figure 4 This is a structural diagram of another embodiment of the present invention.

[0020] In the picture:

[0021] 1. Furnace body; 2. Discharge assembly; 3. Partition; 4. Pyrolysis and gasification chamber; 5. Burnout chamber; 6. Grate; 7. Push baffle; 8. Sealing cover; 9. Air chamber; 10. Slag collection area; 11. Gasification air chamber; 12. Burnout air chamber; 13. Feed port; 14. Flexible sealing block. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] See also Figure 1 、 Figure 2 and Figure 3This is a first embodiment of a dual-chamber biomass pyrolysis gasification furnace of the present invention. In this embodiment, the gasification furnace includes a furnace body 1, a discharge assembly 2 is provided at the bottom of the furnace body 1, and a pyrolysis gasification chamber 4 and a burnout chamber 5 are provided inside the furnace body 1 through a partition 3; the discharge assembly 2 includes a grate 6 provided at the bottom of the furnace body 1 and pusher baffles 7 evenly spaced on the grate 6, and sealing covers 8 connected to the furnace body 1 are provided on both sides of the grate 6, and the length of the sealing cover 8 is greater than or equal to the spacing between the pusher baffles 7; the spacing between the sealing cover 8 and the grate 6 is equal to the spacing between the pusher baffles 7 The height is the same. In this embodiment, the cross-section of the sealing cover 8 is arranged in an arc shape. The arc shape can reduce the use length of the above-mentioned grate 6, reduce the floor space, and reduce the production cost. At the same time, a slag collecting area 10 is provided at the bottom of the above-mentioned grate 6. Through the above-mentioned arc shape, the waste can be effectively pushed into the above-mentioned slag collecting area 10, which is convenient and reliable to use; the above-mentioned furnace body 1 includes two chambers with different functions, the pyrolysis gasification chamber 4 and the burnout chamber 5. The materials enter the above-mentioned pyrolysis gasification chamber 4 for pyrolysis through a partition 3. Under the action of the above-mentioned discharge assembly 2, the materials are discharged into the above-mentioned burnout chamber 5 for burnout. This operation ensures the above-mentioned pyrolysis The material in the gasification chamber 4 will not accumulate, which ensures the degree of pyrolysis and gasification and saves resources; the above-mentioned discharge assembly 2 includes a grate 6 and a push baffle 7 evenly spaced on the above-mentioned grate 6. The above-mentioned push baffle 7 can be set vertically with the above-mentioned grate 6 or at a certain angle. In this embodiment, it is set vertically. The angle is set according to the actual type of material to be pyrolyzed, etc., but it is not limited to this. It will not be repeated here. The above-mentioned grate 6 is passed through the inside of the above-mentioned furnace body 1, and a sealing cover 8 is provided on both sides connected to the furnace body 1. The sealing cover 8 ensures the sealing of the sealing cover 8 and the inside of the above-mentioned furnace body 1, ensuring the stability of the reaction and the structure. Add a single, the effect is significant; the length of the above-mentioned sealing cover 8 is greater than or equal to the distance between the adjacent above-mentioned pushing baffles 7, the distance between the above-mentioned sealing cover 8 and the above-mentioned grate 6 is the same as the height of the above-mentioned pushing baffle 7, and during the operation of the grate 6, the internal sealing can be ensured by the above-mentioned pushing baffle 7, the structure is simple, easy to use, and the stability of the reaction is ensured; at the same time, the distance between the above-mentioned partition 3 and the above-mentioned grate 6 is consistent with the height of the above-mentioned pushing baffle 7, which can effectively push the material and ensure sufficient combustion; at the same time, in this embodiment, the bottom of the above-mentioned grate 6 is provided with a wind chamber 9, which can effectively carry out pyrolysis and the structural setting is reasonable. During use, the feed pyrolysis is carried out through the feed port 13 provided at the top of the pyrolysis gasification chamber 4. After a certain period of pyrolysis, the movement of the grate 6 drives the push baffle 7 to move, and the material accumulated in the pyrolysis gasification chamber 4 is pushed to the burnout chamber 5 for full combustion. The amount of material pushed is determined by the height of the push baffle 7. This process can ensure that no material accumulation will occur in the pyrolysis gasification chamber 4 to affect the pyrolysis effect. At the same time, by pushing the material into the burnout chamber 5 little by little for burnout, the effect is significant.

[0027] See also Figure 2 、 Figure 3 and Figure 4This is a second embodiment of a dual-chamber biomass pyrolysis gasification furnace of the present invention. In this embodiment, the gasification furnace includes a furnace body 1, a discharge assembly 2 is provided at the bottom of the furnace body 1, and a pyrolysis gasification chamber 4 and a burnout chamber 5 are provided inside the furnace body 1 through a partition 3; the discharge assembly 2 includes a grate 6 arranged at the bottom of the furnace body 1 and push baffles 7 evenly spaced on the grate 6, and sealing covers 8 connected to the furnace body 1 are provided on both sides of the grate 6. The length of the sealing cover 8 is greater than or equal to the spacing between the push baffles 7; the spacing between the sealing cover 8 and the grate 6 is the same as the height of the push baffle 7. In this embodiment, the cross-section of the sealing cover 8 is arranged in a long strip shape. When it is arranged in a long strip shape, When the material is discharged, it can be cooled for a certain period of time to ensure the safety of production. At the same time, a slag collecting area 10 is provided at the bottom of the above-mentioned grate 6, which is convenient and reliable to use; the above-mentioned furnace body 1 includes two chambers with different functions, a pyrolysis and gasification chamber 4 and a burnout chamber 5, which are separated by a partition 3. The material enters the above-mentioned pyrolysis and gasification chamber 4 for pyrolysis, and is discharged into the above-mentioned burnout chamber 5 for burnout under the action of the above-mentioned discharge component 2. This operation ensures that the material in the above-mentioned pyrolysis and gasification chamber 4 will not accumulate, ensures the degree of pyrolysis and gasification, and saves resources; the above-mentioned discharge component 2 includes a grate 6 and a push baffle 7 evenly spaced on the above-mentioned grate 6. The above-mentioned push baffle 7 can be arranged vertically with respect to the above-mentioned grate 6, or can be arranged at a certain angle. In this embodiment, It is set vertically, and the angle is set according to the actual type of material to be pyrolyzed, etc. It is not limited to this and will not be repeated here. The above-mentioned grate 6 is arranged inside the above-mentioned furnace body 1, and sealing covers 8 are provided on both sides connected to the furnace body 1. The sealing cover 8 ensures the sealing between the sealing cover 8 and the above-mentioned furnace body 1, and ensures the stability of the reaction. The structure is simple and the effect is significant. In this embodiment, a flexible sealing block 14 is provided on the top of the above-mentioned pushing baffle 7 to ensure the service life of the sealing cover 8 and further ensure the internal sealing and the stability of the reaction; the length of the above-mentioned sealing cover 8 is greater than or equal to the distance between adjacent above-mentioned pushing baffles 7, and the distance between the above-mentioned sealing cover 8 and the above-mentioned grate 6 is the same as the height of the above-mentioned pushing baffle 7. When the grate 6 is running During the process, the pushing baffle 7 can ensure the internal sealing, simple structure, easy use, and ensure the stability of the reaction; at the same time, the distance between the partition 3 and the grate 6 is consistent with the height of the pushing baffle 7, which can effectively push the material and ensure sufficient combustion; at the same time, in the present embodiment, the bottom of the grate 6 is provided with a wind chamber 9, which can effectively carry out pyrolysis, and the structure is reasonably set up, and the wind chamber 9 includes a gasification wind chamber 11 and a burnout wind chamber 12, which correspond to the pyrolysis gasification chamber 4 and the burnout chamber 5 respectively, and can be independently controlled, thereby ensuring accurate control and reducing the cost of use; in the present embodiment, the burnout chamber 5 is provided with a heat recovery system, which can fully recover heat and will not cause waste of resources.During use, the feed pyrolysis is carried out through the feed port 13 provided at the top of the pyrolysis gasification chamber 4. After a certain period of pyrolysis, the movement of the grate 6 drives the push baffle 7 to move, and the material accumulated in the pyrolysis gasification chamber 4 is pushed to the burnout chamber 5 for full combustion. The amount of material pushed is determined by the height of the push baffle 7. This process can ensure that no material accumulation will occur in the pyrolysis gasification chamber 4 to affect the pyrolysis effect. At the same time, by pushing the material into the burnout chamber 5 little by little for burnout, the effect is significant.

[0028] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A dual-chamber biomass pyrolysis gasification furnace, characterized by: include furnace body; A discharge assembly, the discharge assembly being arranged at the bottom of the furnace body; In which, the interior of the furnace body is divided into a pyrolysis gasification chamber and a burnout chamber by a partition; the discharge assembly includes a grate arranged at the bottom of the furnace body and push baffles arranged on the grate; the two side covers of the grate are provided with sealing covers connected to the furnace body; the length of the sealing cover is greater than or equal to the distance between the push baffles; the distance between the sealing cover and the grate is the same as the height of the push baffle.

2. The dual-chamber biomass pyrolysis gasification furnace according to claim 1, characterized in that: The bottom of the grate is provided with an air chamber adapted to the furnace body.

3. The dual-chamber biomass pyrolysis gasification furnace according to claim 1 or 2, characterized in that: The cross section of the sealing cover is arranged in an arc shape or in an elongated strip shape.

4. The dual-chamber biomass pyrolysis gasification furnace according to claim 1 or 2, characterized in that: A slag collecting area is provided at the bottom of the grate.

5. The dual-chamber biomass pyrolysis gasification furnace according to claim 3, characterized in that: A slag collecting area is provided at the bottom of the grate.

6. The dual-chamber biomass pyrolysis gasification furnace according to claim 2, characterized in that: The air chamber includes a gasification air chamber and a burnout air chamber.

7. The dual-chamber biomass pyrolysis gasification furnace according to claim 1 or 2, characterized in that: A feed port is provided on the top of the pyrolysis gasification chamber.

8. The dual-chamber biomass pyrolysis gasification furnace according to claim 3, characterized in that: A feed port is provided on the top of the pyrolysis gasification chamber.

9. The dual-chamber biomass pyrolysis gasification furnace according to claim 1 or 2, characterized in that: A flexible sealing block is provided on the top of the pushing baffle.

10. The dual-chamber biomass pyrolysis gasification furnace according to claim 1 or 2, characterized in that: The burnout chamber is provided with a heat recovery system.

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