A carbonization device for manufacturing straw biochar

Abstract

The utility model provides a kind of carbonization equipment of manufacturing straw biochar, including carbonization furnace body, the inner wall of carbonization furnace body is fixedly installed with microwave generator, one end of the microwave generator is fixedly connected with microwave conduit, the top of carbonization furnace body is fixedly connected with feed channel, the feed channel is set through carbonization furnace body, the top of the feed channel is connected with processing bin, the inside middle part of the processing bin is slidably connected with sieve disc.This scheme is by setting a processing bin in the top of carbonization furnace body, processing bin and carbonization furnace body are transitioned by feed inlet, and the inside of processing bin is provided by motor-driven dynamic crushing knife, dynamic crushing knife and the static crushing knife of processing bin inner wall are arranged to form shear force, straw is rapidly crushed and screened by sieve disc, so that it can avoid that larger volume straw is put into carbonization furnace body, and then improve carbonization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of carbonization equipment technology, and more specifically, to a carbonization device for producing straw biochar. Background Technology

[0002] Biomass carbonization is a thermochemical conversion technology that transforms organic waste such as straw and wood into biochar. Biochar can be used for soil improvement, carbon sequestration, and pollutant adsorption, and has significant environmental and agricultural value.

[0003] There are many existing carbonization methods, such as traditional carbonization furnaces, fluidized bed reactors, and microwave-assisted carbonization. A search revealed a utility model patent with authorization announcement number CN210340775U, which discloses a carbonization device for producing straw biochar, including a housing, a crushing chamber, a carbonization chamber, and a water tank. The crushing chamber, carbonization chamber, and water tank are all located inside the housing. The crushing chamber and water tank are respectively located at the upper and lower ends of the carbonization chamber. A feed inlet is located at the upper end of the crushing chamber, with one end connected to a guide pipe and the other end of the guide pipe located inside the crushing chamber. A crushing rod is located inside the crushing chamber, with a motor attached to one end of the crushing rod, positioned at the upper end of the carbonization chamber. A coupling is connected to one end of the motor, which is connected to the crushing rod via the coupling. An inner partition is provided between the carbonization chamber and the water tank, and a microwave generator is located inside the inner partition.

[0004] However, existing microwave-assisted carbonization equipment still has some problems in practical use: for example, biomass such as straw usually contains large particles, and during direct carbonization, uneven internal heating leads to incomplete carbonization, affecting product quality. In addition, some equipment uses pretreatment that integrates crushing and screening, but the screens are easily clogged by fibrous materials after long-term operation, requiring frequent shutdowns for cleaning and reducing production efficiency. Therefore, improvements are needed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a solution that overcomes or at least partially solves the above technical problems.

[0006] This utility model provides a carbonization device for producing straw biochar, including a carbonization furnace body. A microwave generator is fixedly installed on the inner wall of the carbonization furnace body. One end of the microwave generator is fixedly connected to a microwave conduit. A feeding channel is fixedly connected to the top of the carbonization furnace body. The feeding channel penetrates the carbonization furnace body. A processing chamber is connected to the top of the feeding channel. A sieve plate is slidably connected to the middle of the inner side of the processing chamber. A chamber cover is bolted to the inner side of the top opening of the processing chamber. A motor is fixedly installed at the middle of the upper end of the chamber cover. The output shaft of the motor penetrates the chamber cover and is connected to the chamber cover through a bearing. A rotating shaft is fixedly connected to the end of the output shaft. Multiple moving pulverizing blades are fixedly connected to the shaft of the rotating shaft. Multiple stationary pulverizing blades are fixedly connected to the inner wall of the processing chamber.

[0007] In a preferred embodiment, an inclined seat is fixedly connected to the upper middle part of the sieve disc, and a pressure rod is fixedly connected to the lower section of the shaft of the rotating shaft. The pressure rod is L-shaped, and the end of the vertical part of the pressure rod abuts against the inclined surface of the inclined seat.

[0008] In a preferred embodiment, two guide sleeves are fixedly connected to the inner wall of the processing chamber and below the screen plate, and the two guide sleeves are symmetrically arranged. Each guide sleeve has a guide post slidably connected inside, and the top of the guide post is fixedly connected to the bottom of the screen plate.

[0009] In a preferred embodiment, a spring is provided inside the guide sleeve, one end of the spring is fixedly connected to the bottom of the guide post, and the other end of the spring is fixedly connected to the bottom inner side of the guide sleeve.

[0010] In a preferred embodiment, a sealed furnace door is installed at the front end of the carbonization furnace body, and an exhaust pipe is fixedly connected to the other end of the carbonization furnace body, wherein the exhaust pipe is configured to penetrate the carbonization furnace body.

[0011] In a preferred embodiment, the number of stationary crushing blades is the same as the number of moving crushing blades, and adjacent stationary and moving crushing blades are staggered.

[0012] In a preferred embodiment, a feed inlet is fixedly connected to the inside of the hopper cover, and the feed inlet is configured to penetrate the hopper cover. A baffle is threadedly connected to the inner side of the top opening of the feed inlet.

[0013] In a preferred embodiment, a flow guide hood is connected to the bottom of the feeding channel, and the flow guide hood is located inside the carbonization furnace body. Four flow guide plates are fixedly connected to the inner wall of the flow guide hood.

[0014] In a preferred embodiment, the four guide vanes are arranged symmetrically in pairs, and the guide vanes are inclined.

[0015] The targeted solution provided by this utility model has the following beneficial effects: 1. This solution involves setting up a processing chamber at the top of the carbonization furnace body. The processing chamber is connected to the carbonization furnace body through a feed inlet. The processing chamber is equipped with moving pulverizers driven by an electric motor. The moving pulverizers and the stationary pulverizers on the inner wall of the processing chamber are staggered to form a shearing force, which quickly pulverizes the straw and filters it through a screen. This can prevent large-volume straw from being put into the carbonization furnace body, thereby improving the carbonization efficiency.

[0016] 2. This solution involves setting an L-shaped pressure bar on the rotating shaft of the fixed moving crusher, and then setting an inclined seat at the upper center of the screen plate. In addition, the bottom of the screen plate is equipped with an elastic support assembly consisting of a guide sleeve, a guide column, and a spring. In this way, the L-shaped pressure bar and the inclined seat work together to drive the screen plate to vibrate periodically, automatically clear the screen hole blockage, ensure continuous feeding of straw crushed materials, reduce manual intervention, and improve production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model; Figure 2 A schematic diagram of the overall cross-sectional structure provided for an embodiment of this utility model; Figure 3 Provided for the embodiments of this utility model Figure 2 A magnified schematic diagram of a local structure; Figure 4 Provided for the embodiments of this utility model Figure 3 Enlarged view of point A; Figure 5 A schematic diagram of the processing chamber structure provided for an embodiment of this utility model; Figure 6 A schematic diagram of the rotating shaft structure provided for an embodiment of this utility model; Figure 7 A schematic diagram of the sieve tray structure provided for an embodiment of this utility model.

[0019] In the diagram: 1. Carbonization furnace body; 2. Microwave generator; 3. Microwave conduit; 4. Exhaust pipe; 5. Feed channel; 6. Processing bin; 7. Screen plate; 8. Inclined seat; 9. Guide sleeve; 10. Guide column; 11. Spring; 12. Bin cover; 13. Motor; 14. Rotating shaft; 15. Moving crushing blade; 16. Stationary crushing blade; 17. Pressure rod; 18. Feed inlet; 19. Baffle; 20. Flow guide hood; 21. Flow guide plate; 22. Sealed furnace door. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example Reference Figure 1 , Figure 2 This utility model provides a technical solution: a carbonization device for producing straw biochar, including a carbonization furnace body 1, a sealed furnace door 22 installed at the front end of the carbonization furnace body 1, and a flue pipe 4 fixedly connected to the other end of the carbonization furnace body 1, wherein the flue pipe 4 is configured to penetrate the carbonization furnace body 1. The flue pipe 14 can be connected to a unified waste gas treatment pipeline through a pipeline. A microwave generator 2 is fixedly installed on the inner wall of the carbonization furnace body 1, and a microwave conduit 3 is fixedly connected to one end of the microwave generator 2. The microwave conduit 3 is laid flat on the inner bottom of the carbonization furnace body 1, and multiple branch pipes are integrally formed on the pipe body. The branch pipes are distributed radially to ensure that the microwave field covers the entire furnace body and avoids local overheating.

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7A feeding channel 5 is fixedly connected to the top of the carbonization furnace body 1. The feeding channel 5 is set through the carbonization furnace body 1. A processing chamber 6 is connected to the top of the feeding channel 5. A screen plate 7 is slidably connected to the middle of the inner side of the processing chamber 6. A chamber cover 12 is installed on the inner side of the top opening of the processing chamber 6 by bolts. A feed port 18 is fixedly connected to the inside of the chamber cover 12 and is set through the chamber cover 12. A baffle 19 is threadedly connected to the inner side of the top opening of the feed port 18. The feed inlet 18 is used for feeding straw materials, while the cover 19 can block the feed inlet 18. A motor 13 is fixedly installed at the upper center of the bin cover 12. The output shaft of the motor 13 passes through the bin cover 12 and is connected to the bin cover 12 via a bearing. A rotating shaft 14 is fixedly connected to the end of the output shaft. Multiple moving crushing blades 15 are fixedly connected to the shaft of the rotating shaft 14. Multiple stationary crushing blades 16 are fixedly connected to the inner wall of the processing bin 6. The number of stationary crushing blades 16 is the same as the number of moving crushing blades 15, and adjacent stationary crushing blades 16 and moving crushing blades 15 are staggered. The staggered arrangement of the stationary crushing blades 16 and moving crushing blades 15 creates shearing force, which can efficiently crush the straw raw materials. A guide hood 20 is connected to the bottom of the feed channel 5, and the guide hood 20 is located inside the carbonization furnace body 1. Four guide plates 21 are fixedly connected to the inner wall of the guide hood 20. The guide hood 20 and guide plates 21 are used for feeding the crushed straw powder. The four guide plates 21 are arranged symmetrically in pairs, and the guide plates 21 are inclined. The four inclined guide plates 21 are symmetrically distributed, which can disperse the fed straw to the bottom of the carbonization furnace body 1 and avoid accumulation.

[0023] Reference Figure 3 , Figure 4 , Figure 7 An inclined seat 8 is fixedly connected to the upper middle part of the screen plate 7. A pressure rod 17 is fixedly connected to the lower section of the shaft of the rotating shaft 14. The pressure rod 17 is L-shaped, and the vertical end of the pressure rod 17 abuts against the inclined surface of the inclined seat 8. The L-shaped pressure rod 17 rotates with the rotating shaft 14 and periodically presses down on the inclined seat 8, driving the screen plate 7 to vibrate up and down, automatically clearing the screen holes and preventing the screen plate 7 from clogging. Two guide sleeves 9 are fixedly connected to the inner wall of the processing chamber 6 and below the screen plate 7. The two guide sleeves 9 are symmetrically arranged, and a guide post 10 is slidably connected inside each guide sleeve 9. The top of the guide post 10 is fixedly connected to the bottom of the screen plate 7. The guide sleeves 9 and guide posts 10 cooperate to provide guidance when the screen plate 7 is raised and lowered by force. A spring 11 is installed inside the guide sleeve 9. One end of the spring 11 is fixedly connected to the bottom of the guide post 10, and the other end of the spring 11 is fixedly connected to the inner bottom of the guide sleeve 9. The spring 11 is used for auxiliary reset of the screen plate 7.

[0024] Working method: First, the microwave generator 2 is started. The microwave conduit 3 and its radial branching tubes ensure a uniform microwave field and preheat the carbonization furnace body 1. At the same time, the motor 13 drives the rotating shaft 14 to rotate, which in turn drives the moving crushing blade 15 to rotate. Then, the cover 19 is opened, and the straw raw material is put into the processing chamber 6 through the feed inlet 18. The moving crushing blade 15 and the stationary crushing blade 16 shear each other to initially crush the straw. The crushed straw falls onto the screen plate 7. The smaller straw powder particles enter the guide hood 20 through the screen holes, and then enter the carbonization furnace body 1 evenly under the guidance of the various guide plates 21 for carbonization. In addition, while the rotating shaft 14 rotates, the L-shaped pressure rod 17 rotates with the rotating shaft 14 and periodically presses down on the inclined seat 8. At the same time, with the guidance of the guide sleeve 9 and the guide column 10 and the elastic reset of the spring 11, the screen plate 7 is forced to vibrate up and down periodically, thereby preventing the screen holes from clogging, ensuring continuous feeding of crushed straw material, reducing manual intervention, and improving production efficiency.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A carbonization device for producing straw biochar, comprising a carbonization furnace body (1), characterized in that: A microwave generator (2) is fixedly installed on the inner wall of the carbonization furnace body (1). A microwave conduit (3) is fixedly connected to one end of the microwave generator (2). A feeding channel (5) is fixedly connected to the top of the carbonization furnace body (1). The feeding channel (5) is set through the carbonization furnace body (1). A processing chamber (6) is connected to the top of the feeding channel (5). A sieve plate (7) is slidably connected to the middle of the inner side of the processing chamber (6). A chamber cover (12) is installed on the inner side of the top opening of the processing chamber (6) by bolts. A motor (13) is fixedly installed at the middle of the upper end of the chamber cover (12). The output shaft of the motor (13) passes through the chamber cover (12) and is connected to the chamber cover (12) by a bearing. A rotating shaft (14) is fixedly connected to the end of the output shaft. Multiple moving crushing blades (15) are fixedly connected to the shaft of the rotating shaft (14). Multiple stationary crushing blades (16) are fixedly connected to the inner wall of the processing chamber (6).

2. The carbonization equipment for producing straw biochar according to claim 1, characterized in that: An inclined seat (8) is fixedly connected to the upper middle part of the sieve disc (7), and a pressure rod (17) is fixedly connected to the lower section of the shaft of the rotating shaft (14). The pressure rod (17) is L-shaped, and the end of the vertical part of the pressure rod (17) abuts against the inclined surface of the inclined seat (8).

3. The carbonization equipment for producing straw biochar according to claim 1, characterized in that: Two guide sleeves (9) are fixedly connected to the inner wall of the processing chamber (6) and below the sieve plate (7), and the two guide sleeves (9) are symmetrically arranged. Each guide sleeve (9) has a guide post (10) slidably connected inside, and the top of the guide post (10) is fixedly connected to the bottom of the sieve plate (7).

4. The carbonization equipment for producing straw biochar according to claim 3, characterized in that: A spring (11) is provided inside the guide sleeve (9). One end of the spring (11) is fixedly connected to the bottom of the guide post (10), and the other end of the spring (11) is fixedly connected to the bottom of the inner side of the guide sleeve (9).

5. The carbonization equipment for producing straw biochar according to claim 1, characterized in that: The front end of the carbonization furnace body (1) is equipped with a sealed furnace door (22), and the other end of the carbonization furnace body (1) is fixedly connected to a smoke exhaust pipe (4), which is set to penetrate the carbonization furnace body (1).

6. The carbonization equipment for producing straw biochar according to claim 5, characterized in that: The number of stationary crushing blades (16) is the same as the number of moving crushing blades (15), and adjacent stationary crushing blades (16) and moving crushing blades (15) are staggered.

7. The carbonization equipment for producing straw biochar according to claim 1, characterized in that: The inside of the hopper cover (12) is fixedly connected to a feed inlet (18), and the feed inlet (18) is set through the hopper cover (12). The top opening of the feed inlet (18) is connected to a baffle (19) by a thread.

8. The carbonization equipment for producing straw biochar according to claim 7, characterized in that: The bottom of the feeding channel (5) is connected to a flow guide hood (20), and the flow guide hood (20) is located inside the carbonization furnace body (1). The inner wall of the flow guide hood (20) is fixedly connected with four flow guide plates (21).

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