Corn straw biochar preparation device

Abstract

The utility model relates to a corn straw biochar preparation device which comprises a crushing box and a supporting frame fixedly installed at the bottom of the crushing box, a corn straw crushing mechanism is arranged in the crushing box, and a sandy soil separation structure is arranged at the bottom of the crushing box. And the sandy soil separation structure comprises four side blocks fixedly mounted on the left side of the inner wall of the crushing box. According to the corn straw biochar preparation device, a left side supporting plate and the left side end of a metal net are limited to move in a crushing box through a side block and a supporting rod, and a T-shaped rod limits the right side end of a right side supporting plate and the right side end of the metal net to move at the top of a conveying belt; the vibrating motor drives the metal net to vibrate, the crushing mechanism crushes corn straw and then falls on the vibrating metal net, sandy soil carried in the straw is effectively screened out, and the quality of biomass charcoal is improved. And finally, the corn straws are filtered by a metal net which is obliquely mounted and then fall on a conveying belt, and the conveying belt runs to convey the corn straws to the next preparation link.

Description

Technical Field

[0001] This utility model relates to the field of biochar preparation technology, specifically a device for preparing biochar from corn stalks. Background Technology

[0002] Chinese Patent Publication No. CN216567204U proposes a "Corn Stalk Biochar Preparation Device". This technical solution addresses the problem that "the current method of crushing corn stalks is not effective and has low crushing efficiency". The utility model provides the following technical solution: "Through the joint operation of a first motor, a connecting shaft, a meshing transmission of a driving bevel gear and a driven bevel gear, a transmission connection between two pulleys and a belt, two vertical shafts, multiple first crushing blades, a meshing transmission of a driving gear and a driven gear, a threaded connection between a slide and a reciprocating screw, a second motor, a rotating shaft, and multiple second crushing blades, corn stalks can be crushed twice, resulting in good crushing effect and improved crushing efficiency."

[0003] The above-mentioned device has the following drawbacks in practical use: corn stalks carry a lot of soil after being dug out of the ground. However, the above-mentioned device lacks the step of screening the soil after crushing the corn stalks, thus reducing the quality of biochar. Therefore, a corn stalk biochar preparation device is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a corn straw biochar preparation device to overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A corn stalk biochar preparation device includes a crushing box and a support frame fixedly installed at the bottom of the crushing box. The crushing box is equipped with a corn stalk crushing mechanism inside and a sand-soil separation structure at the bottom of the crushing box.

[0007] The sand-soil separation structure includes four side blocks fixedly installed on the left side of the inner wall of the crushing chamber. The four side blocks are divided into upper and lower groups, located at one end near the front and rear sides of the crushing chamber, respectively. A first support rod is fixedly installed between the upper and lower groups of side blocks. A left support plate is slidably installed on the outside of the two first support rods. A first spring, fitted onto the outside of the two first support rods, is fixedly installed at the top and bottom of the left support plate. A metal mesh is fixedly installed on the right side of the left support plate. A vibration motor is fixedly installed at the bottom of the metal mesh. A right support plate is fixedly installed at the bottom of the metal mesh. A conveyor belt located at the bottom of the metal mesh is fixedly installed at the top of the support frame. Two T-bars are fixedly installed on the top of the conveyor belt, located at the front and rear sides of the metal mesh, respectively. The right support plate is slidably installed on the outside of the two T-bars. A second spring, fitted onto the outside of the two T-bars, is fixedly installed at the top and bottom of the right support plate.

[0008] The beneficial effects of this utility model are as follows: the left side support plate and the left end of the metal mesh are restricted to move within the crushing box by the side blocks and support rods, and the right side support plate and the right end of the metal mesh are restricted to move at the top of the conveyor belt by the T rod; the vibrating motor drives the metal mesh to vibrate, and the crushing mechanism crushes the corn stalks and they fall onto the vibrating metal mesh, effectively removing the sand and soil carried in the stalks and improving the quality of biochar; finally, the corn stalks fall onto the conveyor belt after being filtered by the inclined metal mesh, and the conveyor belt transports them to the next preparation stage.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the corn stalk crushing mechanism includes two crossbars fixedly installed inside the crushing box, a motor bracket slidably installed on the outside of the two crossbars, a crushing motor fixedly installed inside the motor bracket, a crushing blade fixedly installed at the bottom output end of the crushing motor, and an electric push rod fixedly installed on the front of the crushing box, penetrating into it, with the telescopic end of the electric push rod fixedly connected to the surface of the motor bracket.

[0011] Furthermore, two stepper motors are fixedly installed on the surface of the crushing box, and baffles are fixedly installed on the output ends of the two stepper motors. The two baffles are rotatably installed inside the crushing box and located below the crushing blade.

[0012] Furthermore, limit plates are fixedly installed on both the left and right sides of the inner wall of the crushing box, and both limit plates are located between the crushing blade and the baffle plate.

[0013] Furthermore, two limiting rings are fixedly installed on the outside of each of the two crossbars, and the four limiting rings are located at the front and rear ends of the motor bracket, respectively. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a corn stalk biochar preparation device;

[0015] Figure 2 A partial cross-sectional schematic diagram of a corn stalk biochar preparation device;

[0016] Figure 3 A schematic diagram showing the connection between the metal mesh and the vibratory motor structure;

[0017] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 for Figure 1 Enlarged structural diagram at point B;

[0019] Figure 6 for Figure 2 Enlarged structural diagram at point C.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Crushing box; 2. Support frame; 3. Side block; 4. Support rod No. 1; 5. Left side support plate; 6. Spring No. 1; 7. Metal mesh; 8. Vibrating motor; 9. Right side support plate; 10. Conveyor belt; 11. T-bar; 12. Spring No. 2; 13. Crossbar; 14. Motor bracket; 15. Crushing motor; 16. Crushing blade; 17. Electric push rod; 18. Stepper motor; 19. Baffle plate; 20. Limiting plate; 21. Limiting retaining ring. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] Example 1, as Figures 1-4 As shown, a corn stalk biochar preparation device includes a crushing box 1 and a support frame 2 fixedly installed at the bottom of the crushing box 1. The crushing box 1 is equipped with a corn stalk crushing mechanism inside, and a sand and soil separation structure is provided at the bottom of the crushing box 1.

[0024] Specifically, the sand-soil separation structure includes four side blocks 3 fixedly installed on the left side of the inner wall of the crushing box 1. The four side blocks 3 are divided into upper and lower groups, located at one end near the front and rear sides of the crushing box 1 respectively. A first support rod 4 is fixedly installed between the upper and lower groups of side blocks 3. A left support plate 5 is slidably installed on the outside of the two first support rods 4. A first spring 6 fitted on the outside of the two first support rods 4 is fixedly installed on the top and bottom of the left support plate 5. A metal mesh 7 is fixedly installed on the right side of the left support plate 5. A vibration motor 8 is fixedly installed on the bottom of the metal mesh 7. A right support plate 9 is fixedly installed on the bottom of the metal mesh 7 near its right side. A conveyor belt 10 located at the bottom of the metal mesh 7 is fixedly installed on the top of the support frame 2. Two T rods 11 are fixedly installed on the top of the conveyor belt 10. The two T rods 11 are located on the front and rear sides of the metal mesh 7 respectively. The right support plate 9 is slidably installed on the outside of the two T rods 11. A second spring 12 fitted on the outside of the two T rods 11 is fixedly installed on the top and bottom of the right support plate 9.

[0025] In use, the two No. 1 support rods 4 are supported and fixed to the left side of the inner cavity of the crushing box 1 by the four side blocks 3. At this time, the two No. 1 support rods 4 restrict the left side support plate 5 and the left end of the metal mesh 7 to move on the left side of the inner cavity of the crushing box 1. The four No. 1 support rods 4 support the left side support plate 5 at the waist position of the No. 1 support rod 4, which can amplify the movement frequency of the left side support plate 5 and the left end of the metal mesh 7. The right side support plate 9 and the right end of the metal mesh 7 are restricted to move at the top of the conveyor belt 10 by the two T rods 11. The four No. 2 springs 12 support the right side support plate 9 and the right end of the metal mesh 7. Support plate 9 is positioned at the waist of T-rod 11, which amplifies the activity frequency of the right support plate 9 and the right end of metal mesh 7. When vibrating motor 8 runs, it drives metal mesh 7 to vibrate. The corn stalk crushing mechanism inside crushing box 1 crushes the corn stalks. The crushed corn stalks fall onto the vibrating metal mesh 7, effectively screening out the sand and soil carried by the corn stalks. Finally, the crushed corn stalks fall onto the top of conveyor belt 10 through the inclined metal mesh 7. When conveyor belt 10 runs, it transports the crushed corn stalks to the next preparation stage.

[0026] Example 2, as Figure 2 and Figure 5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0027] The corn stalk crushing mechanism includes two crossbars 13 fixedly installed inside the crushing box 1. A motor bracket 14 is slidably installed on the outside of the two crossbars 13. A crushing motor 15 is fixedly installed inside the motor bracket 14. A crushing blade 16 is fixedly installed at the bottom output end of the crushing motor 15. An electric push rod 17 is fixedly installed on the front of the crushing box 1, penetrating into it. The telescopic end of the electric push rod 17 is fixedly connected to the surface of the motor bracket 14.

[0028] With this configuration, the motor bracket 14 and the crushing motor 15 can be supported and slid back and forth inside the crushing box 1 by the two crossbars 13. The crushing motor 15 drives the crushing blade 16 to rotate, which can crush the corn stalks put into the crushing box 1. At this time, the electric push rod 17 can extend and retract, which can drive the motor bracket 14, the crushing motor 15 and the crushing blade 16 to move back and forth, so that the corn stalks inside the crushing box 1 are thoroughly crushed.

[0029] Example 3, as Figures 1-2 As shown, this embodiment is a further improvement based on embodiment 2, and its specific details are as follows:

[0030] Two stepper motors 18 are fixedly installed on the surface of the crushing box 1. Each of the two stepper motors 18 has a baffle plate 19 fixedly installed at its output end. Both baffle plates 19 are rotatably installed inside the crushing box 1 and located below the crushing blade 16.

[0031] With this configuration, two stepper motors 18 drive two baffle plates 19 to rotate in opposite directions. When both baffle plates 19 rotate to be parallel to the top of the crushing box 1, the bottom of the crushing box 1 can be blocked, thus preventing the corn stalks inside the crushing box 1 from falling downwards. When both baffle plates 19 rotate to be parallel to the front and rear side walls of the crushing box 1, the crushed corn stalks can fall onto the top of the metal mesh 7.

[0032] Example 4, as Figure 2 As shown, this embodiment is a further improvement based on embodiment 3, and its specific details are as follows:

[0033] Limiting plates 20 are fixedly installed on both the left and right sides of the inner wall of the crushing box 1. Both limiting plates 20 are located between the crushing blade 16 and the baffle plate 19.

[0034] This configuration restricts the rotational position of the two baffles 19 by the two limiting plates 20, preventing the baffles 19 from colliding with the crushing blade 16.

[0035] Example 5, as Figure 5 As shown, this embodiment is a further improvement based on embodiment 1, and its specific details are as follows:

[0036] Two limiting rings 21 are fixedly installed on the outside of each of the two crossbars 13, and the four limiting rings 21 are located at the front and rear ends of the motor bracket 14 respectively.

[0037] This configuration restricts the forward and backward sliding positions of the motor bracket 14 and the crushing motor 15 by using four limiting rings 21, preventing the crushing blade 16 from colliding with the front and rear walls of the inner cavity of the crushing box 1.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A corn straw biochar preparation device, comprising a crushing box (1) and a support frame (2) fixedly installed at the bottom of the crushing box (1), characterized in that: The inside of the crushing box (1) is provided with a corn straw crushing mechanism, and the bottom of the crushing box (1) is provided with a sand-soil separation structure. The sand-soil separation structure comprises four side blocks (3) fixedly installed on the left side of the inner wall of the crushing box (1), the four side blocks (3) are divided into two groups, one end of each group is located near the front and rear sides of the crushing box (1), a first supporting rod (4) is fixedly installed between the two groups of side blocks (3), a left side support plate (5) is slidably installed outside the two first supporting rods (4), a first spring (6) is fixedly installed on the top and bottom of the left side support plate (5) and sleeved outside the two first supporting rods (4), a metal mesh (7) is fixedly installed on the right side of the left side support plate (5), a vibration motor (8) is fixedly installed on the bottom of the metal mesh (7), a right side support plate (9) is fixedly installed on the bottom of the metal mesh (7) and close to the right side thereof, a conveyor belt (10) is fixedly installed on the top of the support frame (2) and located at the bottom of the metal mesh (7), two T-shaped rods (11) are fixedly installed on the top of the conveyor belt (10) and located on the front and rear sides of the metal mesh (7), the right side support plate (9) is slidably installed outside the two T-shaped rods (11), and a second spring (12) is fixedly installed on the top and bottom of the right side support plate (9) and sleeved outside the two T-shaped rods (11).

2. The corn straw biochar preparation device according to claim 1, characterized in that: The corn straw crushing mechanism comprises two horizontal rods (13) fixedly installed in the inside of the crushing box (1), a motor support (14) is slidably installed outside the two horizontal rods (13), a crushing motor (15) is fixedly installed in the inside of the motor support (14), a crushing knife (16) is fixedly installed on the bottom output end of the crushing motor (15), an electric push rod (17) penetrates through the front of the crushing box (1) and extends into the inside of the crushing box (1), and the extension end of the electric push rod (17) is fixedly connected with the surface of the motor support (14).

3. The corn straw biochar preparation device according to claim 2, characterized in that: Two stepping motors (18) are fixedly installed on the surface of the crushing box (1), a material blocking plate (19) is fixedly installed on the output end of each of the two stepping motors (18), and the two material blocking plates (19) are rotatably installed in the inside of the crushing box (1) and located below the crushing knife (16).

4. The corn straw biochar preparation device according to claim 3, characterized in that: Limiting plates (20) are fixedly installed on the left and right sides of the inner wall of the crushing box (1), and the two limiting plates (20) are located between the crushing knife (16) and the material blocking plate (19).

5. The corn straw biochar preparation device according to claim 2, characterized in that: Two limiting stop rings (21) are fixedly installed outside each of the two horizontal rods (13), and the four limiting stop rings (21) are respectively located at the front and rear ends of the motor support (14).

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