Gas-carbon co-production device for forestry and agricultural residues
By combining a water seal box and a centrifugal tar filter with activated carbon plates, the problem of tar blockage is solved, achieving efficient purification and complete combustion of combustible gases in the carbonization furnace and improving heat utilization.
Patent Information
- Application Number
- CN202522460144.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-11-20
AI Technical Summary
In existing carbonization furnaces, tar easily adheres to the pipes during high-temperature pyrolysis, causing blockages. This results in uneven mixing of fuel gas and air, incomplete combustion, black smoke and odors, and reduced heat utilization.
The design combines a water seal box and a centrifugal tar filter with an activated carbon plate. The water seal box initially adsorbs tar, the centrifugal tar filter uses centrifugal force to adsorb fine tar particles, and the activated carbon plate further purifies the combustible gas, ensuring gas cleanliness.
It effectively avoids pipe blockage, improves gas combustion efficiency and heat utilization, reduces black smoke and odor, and achieves clean combustion.
Smart Images
Figure CN223688266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of carbonization furnace, especially to a gas and charcoal co-production device for agricultural and forestry wastes. BACKGROUND
[0002] The carbonization furnace is an environmental protection equipment for converting raw materials such as biomass and coal into biochar and coal tar by high-temperature anaerobic or anoxic pyrolysis, and simultaneously producing combustible gas and tar.
[0003] The carbonization furnace creates a closed pyrolysis environment to allow the raw materials to decompose into solid, gas, and liquid products instead of burning insufficiently. During the pyrolysis process, the gas produced is combustible gas, which is usually directly drained through a conduit to the combustion heating area below the carbonization furnace to realize the utilization of combustible gas and reduce production energy consumption. However, because the raw materials such as biomass and coal contain a large amount of lignin, cellulose, and oil, these raw materials will not completely decompose into small molecular combustible gas during anaerobic high-temperature pyrolysis. Some large molecular organic matter will crack into liquid oil mist and be discharged with the flue gas, forming tar. Therefore, the combustible gas will carry tar through the combustion heating pipe below the carbonization furnace, which will cause the tar to adhere to the pipe and cause blockage during long-term use. In addition, the high tar content in the combustible gas will cause uneven mixing of the flue gas and air, incomplete combustion, black smoke, and odor, and a significant decrease in heat utilization rate. Therefore, the existing Chinese utility model patent CN209481550U discloses an environmentally friendly carbonization furnace, which can discharge the smoke produced by the combustion inside the carbonization furnace through the gas outlet pipe. The discharged smoke is cooled by the condensing pipe and then reenters the carbonization furnace main body through the second valve body for combustion. However, this application cannot filter the tar in the flue gas, causing the tar to condense and stick together when it cools down, eventually causing the condensing pipe to be blocked. SUMMARY
[0004] The utility model aims to provide a gas and charcoal co-production device for agricultural and forestry wastes, which can effectively solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The utility model provides an agricultural and forestry waste gas carbon co-production device, including heating cabin, fixedly connected with carbonization cabin in heating cabin, one side swing joint of carbonization cabin has cabin door, the first exhaust pipe is fixedly connected on carbonization cabin and extends to the top of heating cabin, the water seal box is fixedly connected on the position of heating cabin near the first exhaust pipe, one end of first exhaust pipe is connected with the input end of water seal box through the pipeline, centrifugal tar filter is arranged on one side of heating cabin, centrifugal tar filter still includes filter cartridge, the upper end cover is fixedly connected on filter cartridge, the lower end cover is fixedly connected on the lower end of filter cartridge, the first axle seat is fixedly connected on the lower end of lower end cover, the motor is fixedly connected on the lower end of first axle seat, and the motor shaft one end rotationally connected in first axle seat, the second axle seat is fixedly connected on the lower end of upper end cover, the transmission shaft is rotationally connected in second axle seat, and the separation tank is movably connected between first axle seat and second axle seat.
[0007] As a further preferred embodiment of the utility model, the combustion pipe is fixedly connected to the bottom of the heating cabin, and a plurality of air holes are formed in the upper end of the combustion pipe, so as to burn the combustible gas generated in the carbonization cabin, thereby assisting in heating the carbonization cabin.
[0008] As a further preferred embodiment of the utility model, a plurality of ear seats are fixedly connected to the outer side of the filter cartridge, the ear seats are fixedly connected to the supports at the lower end, so as to support and install the centrifugal tar filter, the second exhaust pipe is fixedly connected to the filter cartridge below the ear seats, the air inlet pipe is fixedly connected to the center of the upper end of the upper end cover, the air inlet pipe is fixedly connected to the output end of the water seal box through the pipeline, and the second exhaust pipe is fixedly connected to one end of the combustion pipe through the pipeline. Thus, when the bubbles of the combustible gas pass through the water layer in the water seal box, part of the tar is adsorbed by the water, thereby reducing the tar treatment pressure of the centrifugal tar filter and ensuring the sealing of the carbonization cabin.
[0009] As a further preferred embodiment of the utility model, the spline hole is formed in the transmission shaft, so as to provide a connection basis for the upper end of the separation tank and improve the rotation stability of the separation tank.
[0010] As a further preferred scheme of the present utility model, the separating box comprises a lower box plate and an upper box plate, a sink groove is formed on the opposite side of the lower box plate and the upper box plate respectively, and the sink groove is used for clamping and fixing the upper end and the lower end of the activated carbon plate, a plurality of partitions are fixedly connected to the inner bottom of the lower box plate, the plurality of partitions are arranged in a ring shape along the inner side contour of the lower box plate, a central pipe is fixedly connected to the central position of the inner bottom of the lower box plate, a plurality of air inlet grooves are formed in the inner side of the central pipe, a connecting flange is fixedly connected to the central pipe, the central pipe can be connected with the upper box plate through the connecting flange, so that the separation of the lower box plate and the upper box plate is facilitated, the replacement of the activated carbon plate is realized, and a rotating shaft is fixedly connected to the central position of the lower end of the lower box plate, a impeller is fixedly connected to the outer side of the rotating shaft, the lower end of the rotating shaft is fixedly connected with the shaft of the motor through a shaft coupling, and the combination of the lower box plate, the upper box plate and the activated carbon plate is driven to rotate.
[0011] As a further preferred scheme of the present utility model, the separating box comprises a lower box plate and an upper box plate, a sink groove is formed on the opposite side of the lower box plate and the upper box plate respectively, and the sink groove is used for clamping and fixing the upper end and the lower end of the activated carbon plate, a plurality of partitions are fixedly connected to the inner bottom of the lower box plate, the plurality of partitions are arranged in a ring shape along the inner side contour of the lower box plate, a central pipe is fixedly connected to the central position of the inner bottom of the lower box plate, a plurality of air inlet grooves are formed in the inner side of the central pipe, a connecting flange is fixedly connected to the central pipe, the central pipe can be connected with the upper box plate through the connecting flange, so that the separation of the lower box plate and the upper box plate is facilitated, the replacement of the activated carbon plate is realized, and a rotating shaft is fixedly connected to the central position of the lower end of the lower box plate, a impeller is fixedly connected to the outer side of the rotating shaft, the lower end of the rotating shaft is fixedly connected with the shaft of the motor through a shaft coupling, and the combination of the lower box plate, the upper box plate and the activated carbon plate is driven to rotate.
[0012] As a further preferred scheme of the present utility model, the separating box comprises a lower box plate and an upper box plate, a sink groove is formed on the opposite side of the lower box plate and the upper box plate respectively, and the sink groove is used for clamping and fixing the upper end and the lower end of the activated carbon plate, a plurality of partitions are fixedly connected to the inner bottom of the lower box plate, the plurality of partitions are arranged in a ring shape along the inner side contour of the lower box plate, a central pipe is fixedly connected to the central position of the inner bottom of the lower box plate, a plurality of air inlet grooves are formed in the inner side of the central pipe, a connecting flange is fixedly connected to the central pipe, the central pipe can be connected with the upper box plate through the connecting flange, so that the separation of the lower box plate and the upper box plate is facilitated, the replacement of the activated carbon plate is realized, and a rotating shaft is fixedly connected to the central position of the lower end of the lower box plate, a impeller is fixedly connected to the outer side of the rotating shaft, the lower end of the rotating shaft is fixedly connected with the shaft of the motor through a shaft coupling, and the combination of the lower box plate, the upper box plate and the activated carbon plate is driven to rotate.
[0013] Compared with the prior art, the present utility model has the following beneficial effects:
[0014] In the present utility model, the combustible gas generated in the carbonization process enters into the centrifugal tar filter after being preliminarily removed of tar by the water seal box, and the separating box is driven to rotate by the motor, the centrifugal force pushes the combustible gas to the activated carbon plate, adsorbs the fine tar particles, greatly improves the cleanliness of the combustible gas, and the purified combustion gas is returned to the combustion pipe for combustion, which not only avoids the blockage of the pipeline, but also makes the combustion more sufficient, reduces the black smoke odor, and improves the heat utilization rate. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a main structure schematic view of the present utility model;
[0016] Figure 2 It is a centrifugal tar filter structure schematic view of the present utility model;
[0017] Figure 3 The utility model discloses a centrifugal tar filter sectional view;
[0018] Figure 4 The utility model discloses a separation tank split structure schematic view;
[0019] Figure 5 The utility model discloses a transmission shaft structure schematic view.
[0020] In the drawing: 1, heating cabin;2, carbonization cabin;3, cabin door;4, first exhaust pipe;5, water seal tank;6, combustion pipe;7, centrifugal tar filter;8, filter cylinder;9, upper end cover;10, air inlet pipe;11, lower end cover;12, first shaft seat;13, motor;14, second exhaust pipe;15, second shaft seat;16, transmission shaft;17, separation tank;18, lug seat;19, support;20, spline hole;21, lower tank plate;22, baffle;23, center tube;24, air inlet channel;25, connecting flange;26, upper tank plate;27, spline shaft;28, activated carbon plate;29, rotating shaft;30, impeller. DETAILED DESCRIPTION
[0021] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific implementation manners below.
[0022] As Figures 1-5 The utility model provides a kind of gas and carbon co-production device of agricultural and forestry waste as shown in the figure, including heating cabin 1, heating cabin 1 is fixedly connected with carbonization cabin 2 in it, carbonization cabin 2 side is movably connected with cabin door 3, carbonization cabin 2 is fixedly connected with first exhaust pipe 4 and extends to the upper of heating cabin 1, water seal tank 5 is fixedly connected with the position of first exhaust pipe 4 on the upper of heating cabin 1, one end of first exhaust pipe 4 is connected with the input end of water seal tank 5 by pipeline, centrifugal tar filter 7 is arranged on the side of heating cabin 1, centrifugal tar filter 7 further includes filter cylinder 8, upper end cover 9 is fixedly connected on filter cylinder 8, lower end cover 11 is fixedly connected on the lower end of filter cylinder 8, first shaft seat 12 is fixedly connected on the lower end of lower end cover 11, motor 13 is fixedly connected on the lower end of first shaft seat 12, and the shaft one end of motor 13 is rotatably connected in first shaft seat 12, second shaft seat 15 is rotatably connected in the inside of second shaft seat 15, separation tank 17 is movably connected between first shaft seat 12 and second shaft seat 15.
[0023] As Figure 1 Heating cabin 1 bottom is fixedly connected with combustion pipe 6, and combustion pipe 6 upper end is provided with a plurality of air holes, to realize the combustion of combustible gas generated in carbonization cabin 2, to assist heating carbonization cabin 2.
[0024] As Figures 1-5As shown, the filter cartridge 8 is fixedly connected with a plurality of ear seats 18, the lower end of the ear seat 18 is fixedly connected with a support 19, realizing the support installation of the centrifugal tar filter 7, the filter cartridge 8 located below the ear seat 18 is fixedly connected with the second exhaust pipe 14, the upper end of the upper end cover 9 is fixedly connected with the air inlet pipe 10, the air inlet pipe 10 is fixedly connected with the output end of the water seal tank 5 through a pipeline, and the second exhaust pipe 14 is fixedly connected with one end of the combustion pipe 6 through a pipeline. Thus, when the bubbles of combustible gas pass through the water layer in the water seal tank 5, part of the tar is adsorbed by the water, thereby reducing the tar treatment pressure of the centrifugal tar filter 7, and ensuring the sealing of the carbonization cabin 2. The spline hole 20 is formed in the transmission shaft 16, which facilitates the connection of the upper end of the separation tank 17, and improves the rotation stability of the separation tank 17. The separation tank 17 includes a lower tank plate 21 and an upper tank plate 26, and a sink is formed in the opposite side of the lower tank plate 21 and the upper tank plate 26, respectively, for clamping and fixing the upper end and the lower end of the activated carbon plate 28. A plurality of partitions 22 are fixedly connected to the inner bottom of the lower tank plate 21 and arranged circumferentially along the inner side of the lower tank plate 21. A central pipe 23 is fixedly connected to the center position of the inner bottom of the lower tank plate 21, and a plurality of air inlet grooves 24 are formed in the inner side of the central pipe 23. A connecting flange 25 is fixedly connected to the central pipe 23, and the central pipe 23 is connected to the upper tank plate 26 through the connecting flange 25, thereby facilitating the separation of the lower tank plate 21 and the upper tank plate 26, and realizing the replacement of the activated carbon plate 28. A rotating shaft 29 is fixedly connected to the center position of the lower end of the lower tank plate 21, and an impeller 30 is fixedly connected to the outer side of the rotating shaft 29. The lower end of the rotating shaft 29 is fixedly connected to the shaft of the motor 13 through a shaft coupling, thereby driving the rotation of the combination of the lower tank plate 21, the upper tank plate 26 and the activated carbon plate 28. The activated carbon plate 28 is connected between the lower tank plate 21 and the two partitions 22. When the entire separation tank 17 is uniformly rotated by the motor 13, the combustible gas entering the separation tank 17 is thrown to the direction of the activated carbon plate 28 by centrifugal force, so that the tar in the combustible gas passing through the activated carbon plate 28 is adsorbed by the activated carbon plate 28, thereby effectively improving the tar filtering effect of the combustible gas and improving the combustion efficiency of the combustible gas. The spline shaft 27 is fixedly connected to the center position of the upper end of the upper tank plate 26, and the spline shaft 27 is hollow. The spline shaft 27 is connected in the spline hole 20, and the central pipe 23 and the air inlet pipe 10 are in communication through the second shaft seat 15 and the cavity of the spline shaft 27, thereby realizing that the combustible gas discharged from the first exhaust pipe 4 of the carbonization cabin 2 enters the central pipe 23 and is distributed to the enclosed space of the lower tank plate 21, the upper tank plate 26 and the activated carbon plate 28.
[0025] It needs to be explained that the utility model discloses a kind of gas and carbon co-production devices of agricultural and forestry wastes, when using, first by hatch 3 is loaded into agricultural and forestry wastes raw materials in carbonization cabin 2, after closing hatch 3 creates airtight environment, then, by burner from heating cabin 1 lower position to carbonization cabin 2 heating, raw materials pyrolysis reaction occurs under high temperature, three types of products of biochar, combustible gas and tar are produced, biochar remains in carbonization cabin 2, and combustible gas and tar are guided out by first exhaust pipe 4;
[0026] The mixed gas is first introduced into the water seal tank 5. When the bubbles pass through the water layer in the water seal tank 5, part of the tar is adsorbed by the water to achieve preliminary purification. At the same time, the water seal tank 5 can ensure the airtightness of the carbonization cabin 2 to avoid air entering and destroying the carbonization environment. Therefore, the gas after preliminary purification is introduced into the gas inlet pipe 10 of the centrifugal tar filter 7 through the pipeline, and is introduced into the central pipe 23 through the cavity of the spline shaft 27 and the second shaft seat 15, and is then dispersed to the inside of the separation tank 17 through the gas inlet channel 24 on the inside of the central pipe 23. At this time, the motor 13 drives the rotating shaft 29 to rotate, thereby driving the separation tank 17 to rotate uniformly. The gas in the separation tank 17 is thrown to the direction of the activated carbon plate 28 under the action of the blades on the outside of the central pipe 23 and the centrifugal force. When the gas passes through the activated carbon plate 28, the residual small tar particles in the gas are fully adsorbed by the activated carbon plate 28. The clean combustible gas after deep purification by the centrifugal tar filter 7 is transported to the combustion pipe 6 through the second exhaust pipe 14. The plurality of gas holes formed on the upper end of the combustion pipe 6 can make the combustible gas be uniformly sprayed out and mixed with air to be combusted. The heat generated by the combustion is reversely supplied to the heating cabin 1 to continuously provide energy for the pyrolysis of the raw materials in the carbonization cabin 2, thereby forming an energy cycle.
[0027] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A device for co-production of syngas and char from agroforestry wastes, characterized by: The utility model provides heating cabin (1), fixedly connected with carbonization cabin (2) in heating cabin (1), one side swing connection has cabin door (3) of carbonization cabin (2), first exhaust pipe (4) is fixedly connected on carbonization cabin (2) and extends to the top of heating cabin (1), water seal box (5) is fixedly connected on heating cabin (1) near first exhaust pipe (4) position, one end of first exhaust pipe (4) is connected with the input end of water seal box (5) through pipeline, centrifugal tar filter (7) is arranged on one side of heating cabin (1), centrifugal tar filter (7) further includes filter cartridge (8), upper end cover (9) is fixedly connected on filter cartridge (8), lower end cover (11) is fixedly connected on filter cartridge (8), first shaft seat (12) is fixedly connected on the lower end of lower end cover (11), motor (13) is fixedly connected on the lower end of first shaft seat (12), and the machine shaft one end of motor (13) is rotatably connected in first shaft seat (12), second shaft seat (15) is fixedly connected on the lower end of upper end cover (9), transmission shaft (16) is rotatably connected in second shaft seat (15), and separating box (17) is movably connected between first shaft seat (12) and second shaft seat (15).
2. The device for co-production of syngas and char from agroforestry wastes according to claim 1, characterized in that: The bottom of the heating cabin (1) is fixedly connected with a combustion pipe (6), and a plurality of air holes are formed in the upper end of the combustion pipe (6).
3. The device for co-production of syngas and char from agroforestry wastes according to claim 2, wherein: A plurality of ear seats (18) are fixedly connected to the outside of the filter cartridge (8), the lower end of each ear seat (18) is fixedly connected with a support (19), the filter cartridge (8) located below the ear seat (18) is fixedly connected with a second exhaust pipe (14), the upper end center of the upper end cover (9) is fixedly connected with an air inlet pipe (10), the air inlet pipe (10) is fixedly connected with the output end of the water seal box (5) through a pipeline, and one end of the second exhaust pipe (14) is fixedly connected with the combustion pipe (6) through a pipeline.
4. The apparatus according to claim 1, wherein: A spline hole (20) is formed in the transmission shaft (16).
5. The combined gas and char production apparatus for agroforestry wastes according to claim 4, wherein: The separating box (17) comprises a lower box plate (21) and an upper box plate (26), a sink is formed in the opposite side of the lower box plate (21) and the upper box plate (26), respectively, a plurality of partition plates (22) are fixedly connected to the inner bottom of the lower box plate (21), the plurality of partition plates (22) are arranged in a ring shape along the inner side of the lower box plate (21), a center pipe (23) is fixedly connected to the inner bottom center of the lower box plate (21), a plurality of air inlet grooves (24) are formed in the inner side of the center pipe (23), a connecting flange (25) is fixedly connected to the center pipe (23), a rotating shaft (29) is fixedly connected to the lower end center of the lower box plate (21), a impeller (30) is fixedly connected to the outer side of the rotating shaft (29), and the rotating shaft (29) is fixedly connected with the machine shaft of the motor (13) through a shaft coupling.
6. The device for co-production of syngas and char from agroforestry waste according to claim 5, wherein: The active carbon plate (28) is connected between the lower box plate (21) and the two partition plates (22).
7. The device for co-production of syngas and char from agroforestry waste according to claim 6, wherein: The upper box plate (26) is fixedly connected with a spline shaft (27) at the center of the upper end, the spline shaft (27) is a hollow structure, the spline shaft (27) is connected in the spline hole (20), and the central pipe (23) and the air inlet pipe (10) are communicated through the second shaft seat (15) and the cavity of the spline shaft (27).
Citation Information
Patent Citations
Environment-friendly carbonization furnace
CN209481550U