Biochar-based heavy metal passivation device

Abstract

The utility model relates to the field of soil treatment, in particular to a biochar-based heavy metal passivation device. The utility model provides a biochar-based heavy metal passivation device which can automatically screen soil and stones and automatically convey soil to be mixed with biochar for soil heavy metal passivation at the same time, so that the waste of biochar is reduced, the resource utilization rate is improved, the treatment cost is reduced, and the passivation efficiency is improved. A biochar-based heavy metal passivation device comprises a base, a material suction pipe and the like, and the left upper portion of the base is connected with the material suction pipe. Soil is shoveled through the soil shoveling frame, soil and pebbles are screened through vibration of the screening frame, the soil falls on the conveying belt to be conveyed, the soil is sucked into the mixing barrel through the air pump to be mixed with biochar and then discharged, and therefore the soil and the pebbles can be automatically screened, and meanwhile the soil is automatically conveyed to be mixed with the biochar for soil heavy metal passivation; the waste of charcoal is reduced, the resource utilization rate is improved, the treatment cost is reduced, and the passivation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil treatment, and in particular to a biochar-based heavy metal passivation device. Background Technology

[0002] With rapid industrialization and urbanization, soil heavy metal pollution has become an increasingly serious problem, posing a significant threat to ecological security, agricultural product quality, and human health. The accumulation of heavy metals such as lead, cadmium, and mercury in the soil not only leads to decreased soil fertility but can also be transmitted through the food chain, causing toxic effects on organisms.

[0003] Current methods for passivating heavy metals in soil typically involve spreading biochar onto the soil using a spreading device, followed by turning the soil with a tilling device to mix the soil and biochar for passivation. However, current equipment lacks the ability to separate soil and gravel. During tilling, biochar not only comes into contact with the soil but also mixes with the gravel. This not only easily leads to biochar waste and reduced resource utilization but also increases processing costs and affects passivation efficiency. Furthermore, since gravel does not require heavy metal passivation, this unnecessary mixing reduces the effective contact between biochar and the target soil, weakening the passivation effect.

[0004] Therefore, it is necessary to design a biochar-based heavy metal passivation device that can automatically screen soil and gravel while automatically conveying soil to be mixed with biochar for soil heavy metal passivation, thereby reducing biochar waste, improving resource utilization, reducing treatment costs, and improving passivation efficiency. Utility Model Content

[0005] To overcome the shortcomings of current equipment that lacks the function of screening soil and gravel, and the fact that biochar not only comes into contact with soil but also mixes with gravel during soil turning, which not only easily leads to biochar waste and reduced resource utilization, but also increases processing costs and affects passivation efficiency, this utility model provides a biochar-based heavy metal passivation device that can automatically screen soil and gravel while automatically conveying soil and biochar to mix for soil heavy metal passivation, thereby reducing biochar waste, improving resource utilization, lowering processing costs, and improving passivation efficiency.

[0006] The technical solution of this utility model is: a biochar-based heavy metal passivation device, comprising a base, a suction pipe, a mixing tank, a conveyor belt, wheels, an air pump, a screening component, a mixing component, and a dispersing component. The suction pipe is connected to the upper left part of the base, and the mixing tank is connected to the upper right part of the base. The suction pipe is connected to the mixing tank. A conveyor belt is installed on the left side of the base. Two wheels are rotatably connected to the lower left and right sides of the base. An air pump is connected to the suction pipe. A screening component for automatically shoveling and screening soil is provided on the upper left side of the base. A mixing component for mixing biochar and soil and then discharging the mixture is provided on the mixing tank. A dispersing component for dispersing biochar is provided on the upper part of the mixing tank.

[0007] As a further preferred embodiment, the screening assembly includes a robotic arm, a shovel frame, a screening frame, and a vibrating motor. The robotic arm is connected to the upper left side of the base, the shovel frame is connected to the robotic arm, the vibrating motor is connected to the shovel frame, and a screening frame is provided on the upper part of the shovel frame, which is connected to the vibrating motor.

[0008] As a further preferred option, the screening box has multiple discharge ports.

[0009] As a further preferred embodiment, the mixing assembly includes a funnel, a hopper, an impeller, and a discharge frame. The funnel is connected to the upper front of the mixing barrel, the hopper is connected to the inner upper part of the mixing barrel, the impeller is rotatably connected to the lower part of the hopper, and the discharge frame is connected to the lower part of the mixing barrel through the base.

[0010] As a further preferred option, the material cutting frame is wider at the top and narrower at the bottom.

[0011] As a further preferred embodiment, the dispersing assembly includes a conventional motor and a rotating disk. The conventional motor is connected to the upper part of the middle of the mixing tank, and the output shaft of the conventional motor passes through the mixing tank and is connected to the rotating disk.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model uses a soil shovel frame to shovel soil, and a screening frame to vibrate and screen the soil and stones, causing the soil to fall onto a conveyor belt for transport. The soil is then sucked into a mixing tank by an air pump and mixed with biochar before being discharged. This allows for automatic screening of soil and stones while automatically transporting the soil and biochar to be mixed for soil heavy metal passivation, reducing biochar waste, improving resource utilization, lowering treatment costs, and increasing passivation efficiency.

[0013] 2. In this invention, soil is sucked into the suction pipe and then into the mixing tank. A regular motor is then started, which drives a rotating disc to spread the biochar, causing it to fall into the feeding hopper. This allows the soil and biochar to come into contact, thus enabling the biochar to be spread and used, preventing biochar accumulation, facilitating its use, and improving the treatment effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the earthmoving frame and other components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the funnel and other components of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the hopper and other components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the material feeding frame and other components of this utility model.

[0019] The components include: 1. base, 2. robotic arm, 3. suction pipe, 4. mixing tank, 5. conveyor belt, 6. wheels, 7. air pump, 8. shovel frame, 9. screening frame, 10. vibrating motor, 11. funnel, 12. ordinary motor, 13. rotary disc, 14. discharge hopper, 15. impeller, and 16. discharge frame. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] A biochar-based heavy metal passivation device, such as Figures 1-5 As shown, the system includes a base 1, a suction pipe 3, a mixing tank 4, a conveyor belt 5, wheels 6, an air pump 7, a screening component, a mixing component, and a dispersing component. The suction pipe 3 is connected to the upper left part of the base 1, and the mixing tank 4 is connected to the upper right part of the base 1. The suction pipe 3 is connected to the mixing tank 4. The conveyor belt 5 is installed on the left side of the base 1. Two wheels 6 are rotatably connected to the lower left and right sides of the base 1. The air pump 7 is connected to the suction pipe 3. The screening component for automatic soil shoveling and screening is provided on the upper left side of the base 1. The mixing tank 4 is provided with a mixing component for mixing biochar and soil and then discharging the mixture. The upper part of the mixing tank 4 is provided with a dispersing component for dispersing biochar.

[0022] like Figure 1 and Figure 2As shown, the screening assembly includes a robotic arm 2, a shovel frame 8, a screening frame 9, and a vibrating motor 10. The robotic arm 2 is connected to the upper left side of the base 1. The shovel frame 8 is connected to the robotic arm 2. The vibrating motor 10 is connected to the shovel frame 8. The screening frame 9 is located on the upper part of the shovel frame 8. The screening frame 9 is connected to the vibrating motor 10. The screening frame 9 has multiple discharge ports to facilitate the discharge of stones.

[0023] like Figure 3 , Figure 4 and Figure 5 As shown, the mixing assembly includes a funnel 11, a feeding hopper 14, an impeller 15, and a feeding frame 16. The funnel 11 is connected to the upper front side of the mixing barrel 4, the feeding hopper 14 is connected to the inner upper part of the mixing barrel 4, the impeller 15 is rotatably connected to the lower part of the feeding hopper 14, and the feeding frame 16 is connected to the lower part of the mixing barrel 4 through the base 1. The feeding frame 16 is wider at the top and narrower at the bottom to facilitate material discharge.

[0024] like Figure 3 and Figure 4 As shown, the dispersing assembly includes a conventional motor 12 and a rotating disk 13. The conventional motor 12 is connected to the upper side of the middle part of the mixing tank 4, and the output shaft of the conventional motor 12 passes through the mixing tank 4 and is connected to the rotating disk 13.

[0025] When biochar is needed for passivation of heavy metals, this device can be used. The wheels 6 contact the ground, and the biochar is placed into the feeding frame 16, which is wider at the top and narrower at the bottom for easy discharge. The biochar falls into the mixing tank 4 and onto the rotating disc 13. The device is then moved to a designated position, causing the wheels 6 to rotate. The robotic arm 2 then moves the shovel frame 8 to contact the soil and shovel it, allowing the soil to enter the screening frame 9. The soil is then further processed by the... After the robotic arm 2 moves and resets the shovel frame 8, the vibration motor 10 is activated. The vibration motor 10 causes the screening frame 9 to vibrate, causing soil to be discharged from the outlet of the screening frame 9 and fall onto the conveyor belt 5. This leaves stones and impurities in the screening frame 9. The robotic arm 2 then moves the shovel frame 8 to empty the stones and impurities from the screening frame 9. Shoveling continues, and then the conveyor belt 5 is activated to transport the soil. Simultaneously, the... The air pump 7 is activated, causing soil to be sucked into the suction pipe 3 and then into the mixing tank 4. The ordinary motor 12 is then started, driving the rotating disk 13 to spread biochar, which falls into the discharge hopper 14, allowing the soil and biochar to come into contact. This facilitates the spreading and dispensing of biochar, preventing its accumulation and improving its usability, thus enhancing the treatment effect. Under the action of the gas, the impeller 15 rotates, further mixing the soil and biochar. The mixed soil and biochar are then discharged into the discharge frame 16, thereby achieving the passivation of heavy metals in the soil. This system can automatically screen soil and stones while automatically conveying soil and biochar for heavy metal passivation, reducing biochar waste, improving resource utilization, lowering treatment costs, and increasing passivation efficiency. The above operations are then repeated to continue shoveling, screening, conveying, and mixing until the soil treatment is complete. Finally, the robotic arm 2, the vibrating motor 10, the air pump 7, and the ordinary motor 12 are turned off, and the device is removed.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biochar-based heavy metal passivation device, characterized in that, It includes a base (1), a suction pipe (3), a mixing tank (4), a conveyor belt (5), wheels (6), an air pump (7), a screening component, a mixing component, and a dispersing component. The upper left part of the base (1) is connected to the suction pipe (3), the upper right part of the base (1) is connected to the mixing tank (4), the suction pipe (3) is connected to the mixing tank (4), the left part of the base (1) is equipped with a conveyor belt (5), the lower left and right parts of the base (1) are rotatably connected to two front and rear wheels (6), the suction pipe (3) is connected to the air pump (7), the upper left part of the base (1) is equipped with a screening component for automatically shoveling soil for screening, the mixing tank (4) is equipped with a mixing component for mixing biochar and soil and then discharging it, and the upper part of the mixing tank (4) is equipped with a dispersing component for dispersing biochar.

2. The biochar-based heavy metal passivation device according to claim 1, characterized in that, The screening assembly includes a robotic arm (2), a shovel frame (8), a screening frame (9), and a vibrating motor (10). The robotic arm (2) is connected to the upper left side of the base (1), the shovel frame (8) is connected to the robotic arm (2), the vibrating motor (10) is connected to the shovel frame (8), and the screening frame (9) is provided on the upper part of the shovel frame (8). The screening frame (9) is connected to the vibrating motor (10).

3. The biochar-based heavy metal passivation device according to claim 2, characterized in that, The filter box (9) has multiple discharge ports.

4. The biochar-based heavy metal passivation device according to claim 1, characterized in that, The mixing assembly includes a funnel (11), a feeding hopper (14), an impeller (15), and a feeding frame (16). The funnel (11) is connected to the upper front of the mixing barrel (4), the feeding hopper (14) is connected to the inner upper part of the mixing barrel (4), the impeller (15) is rotatably connected to the lower part of the feeding hopper (14), and the feeding frame (16) is connected to the lower part of the mixing barrel (4) through the base (1).

5. The biochar-based heavy metal passivation device according to claim 4, characterized in that, The material feeding frame (16) is wider at the top and narrower at the bottom.

6. The biochar-based heavy metal passivation device according to claim 1, characterized in that, The dispersing assembly includes a conventional motor (12) and a rotating disk (13). The conventional motor (12) is connected to the upper part of the middle of the mixing tank (4), and the output shaft of the conventional motor (12) passes through the mixing tank (4) and is connected to the rotating disk (13).

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