Soil heavy metal pollution treatment device

Abstract

The utility model discloses a soil heavy metal pollution treatment device, which relates to the technical field of soil treatment, and comprises a rack, a fixed tank body, a movable tank body, a stirring device and a driving device, the movable tank body is hinged to the upper end of the fixed tank body, the side face of the fixed tank body is connected with a stabilizer adding opening, the movable tank body has a first position and a second position, when the movable tank body is located at the first position, the fixed tank body abuts against the movable tank body, and a stirring cavity is formed between the fixed tank body and the movable tank body; the lower end of the fixed tank body and the lower end of the movable tank body form a discharge port for discharging soil, and when the movable tank body is located at the second position, the movable tank body is separated from the fixed tank body; the stirring device is used for stirring soil in the stirring cavity; the driving device is used for driving the movable tank body to be switched between the first position and the second position. According to the utility model, the blocked stirring cavity can be quickly cleaned, and the treatment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, and in particular to a soil heavy metal pollution remediation device. Background Technology

[0002] Soil not only provides mechanical support for plant growth but also provides the necessary nutrients such as water, fertilizer, air, and heat for plant development. However, with industrialization and the widespread use of pesticides, much soil has become contaminated with heavy metals, particularly arable land. These heavy metals can easily enter the human body through the food chain, posing a significant threat to human health. Therefore, it is necessary to remediate soil contaminated with heavy metals. Adding stabilizers or solidifying agents to the soil can effectively reduce the activity and toxicity of heavy metals and is widely used. However, soil often contains a lot of impurities, which can easily clog mixing devices when the stabilizer is mixed with the soil, resulting in low treatment efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a soil heavy metal pollution treatment device that can quickly clear clogged mixing chambers and improve treatment efficiency.

[0004] A soil heavy metal pollution remediation device according to a first aspect of the present invention includes: a frame, a fixed tank, a movable tank, a stirring device, and a driving device. The fixed tank is fixedly connected to the frame; the movable tank is hinged to the upper end of the fixed tank, a stabilizer inlet is connected to the side of the fixed tank, a guide funnel is provided at the upper end of the movable tank, the movable tank has a first position and a second position, when the movable tank is in the first position, the fixed tank and the movable tank abut against each other, forming a stirring chamber between the fixed tank and the movable tank, the lower ends of the fixed tank and the lower ends of the movable tank form a discharge port for soil discharge, and the upper opening of the stirring chamber is for receiving soil; when the movable tank is in the second position, the movable tank is separated from the fixed tank; the stirring device is detachably installed on the fixed tank, and the stirring device is used to stir the soil in the stirring chamber; the driving device is installed on the frame, and the driving device is used to drive the movable tank to switch between the first position and the second position.

[0005] A soil heavy metal pollution treatment device according to an embodiment of this utility model has at least the following beneficial effects: A guide funnel is used to collect soil particles scattered during the feeding process of excavators, loaders, and other shoveling equipment. Then, a mixing device in the mixing chamber mixes the soil and stabilizer, which is then discharged from the outlet. When large rocks or compaction in the soil cause blockage of the outlet, a drive device moves the movable tank to a second position, separating it from the fixed tank to facilitate cleaning the soil in the mixing chamber. After cleaning, the drive device moves the movable tank to a first position, and operation can continue. This integrated design achieves a continuous closed-loop operation of contaminated soil feeding, reagent mixing, and fault self-handling, significantly improving the efficiency of heavy metal pollution treatment.

[0006] According to some embodiments of the present invention, the stirring device includes a mounting plate, a motor, and a stirring shaft. The mounting plate is detachably connected to the upper end of the fixed tank. The mounting plate is connected to a cantilevered protrusion, which extends above the discharge port. The motor is mounted above the cantilevered protrusion, and the stirring shaft passes through the cantilevered protrusion and is connected to the motor for transmission.

[0007] According to some embodiments of the present invention, a protective cover is inclinedly provided on the upper end of the mounting plate, the protective cover is located above the motor, and the protective cover is used to guide the soil into the mixing chamber.

[0008] According to some embodiments of the present invention, the protective cover includes an inclined plate and a ridge section. The ridge section is located above the cantilevered convex plate and is hollow inside. The motor is installed inside the ridge section, and the inclined plate is disposed above the mounting plate. The ridge section is used to prevent soil from accumulating on the motor, and the inclined plate is used to prevent soil from accumulating on the mounting plate.

[0009] According to some embodiments of the present invention, the left end of the ridge passes through the inclined plate, and the left end of the ridge has an opening to facilitate the installation of the motor.

[0010] According to some embodiments of this utility model, a support plate is provided on the inner wall of the fixed tank, and the lower end of the mounting plate abuts against the upper end of the support plate.

[0011] According to some embodiments of the present invention, the driving device includes a pulley, a rope, and a winch. The pulley is disposed on the top of the frame, the winch is connected to the frame, one end of the rope is connected to the winch, and the other end is connected to the upper end of the movable tank away from the fixed tank. The rope passes around the pulley.

[0012] According to some embodiments of the present invention, a lifting ring is provided on the upper end of the movable tank away from the fixed tank, and the rope is connected to the lifting ring.

[0013] According to some embodiments of the present invention, a fixing plate is provided on the side of the fixed tank, and a movable plate is provided on the side of the movable tank. The movable plate and the fixing plate can be bolted together to fix the movable tank in a first position.

[0014] According to some embodiments of this utility model, a gate valve is connected to the lower end of the fixed tank, and the gate valve is used to control the flow rate of soil discharged from the outlet.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the installation structure of one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of a driving device according to an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the movable tank in a first position according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the movable tank in the second position according to one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of a fixed tank body according to an embodiment of the present invention;

[0023] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0024] Figure 8 This is a schematic diagram of a stirring device according to an embodiment of the present invention.

[0025] Icon labels:

[0026] 100 racks;

[0027] Fixed tank 200, stabilizer inlet 201, discharge outlet 210, support plate 220, fixing plate 230;

[0028] Movable tank 300, guide funnel 310, lifting ring 320, movable plate 330;

[0029] Agitator 400, mounting plate 410, cantilever convex plate 411, motor 420, agitator shaft 430;

[0030] Drive unit 500, pulley 510, rope 520, winch 530;

[0031] Protective cover 600, inclined plate 610, ridge section 620. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] Reference Figures 1 to 8As shown, an embodiment of this utility model discloses a soil heavy metal pollution treatment device, comprising: a frame 100, a fixed tank 200, a movable tank 300, a stirring device 400, and a driving device 500. The fixed tank 200 is welded to the frame 100 for a rigid connection. Both the fixed tank 200 and the frame 100 are made of alloy steel. The frame 100 is formed by welding channel steel. The fixed tank 200 has a stabilizer inlet 201 connected to its side. The stabilizer is a mixed stabilizer of KH2PO4, CaO, and KCl or dibutyl dithiophosphate. The stabilizer is added during the stirring process, allowing it to mix quickly with the soil. Compared to adding the stabilizer to the soil before stirring, the mixing uniformity is better. The movable tank 300 is hinged to the upper end of the fixed tank 200. The rotation axis of the movable tank 300 is horizontally set, allowing the movable tank 300 to rotate around the hinge axis. The movable tank 300 is equipped with a guide funnel 310 at its upper end. The guide funnel 310 is used to collect soil particles scattered during the feeding process of excavators, loaders, and other shoveling equipment, thereby maximizing material collection efficiency. The movable tank 300 has a first position and a second position. Reinforcing ribs can be installed on both the fixed tank 200 and the movable tank 300 to improve structural stability. When the movable tank 300 is in the first position, the fixed tank 200 abuts against the side of the movable tank 300, forming a mixing chamber between them. This mixing chamber is used to temporarily store soil. The lower ends of the fixed tank 200 and the movable tank 300 form a discharge port 210 for soil discharge. After discharge, the soil can be transported to the next process by a conveyor belt. The mixing chamber has an opening at the top to receive soil. When the movable tank 300 is in the second position, it is separated from the fixed tank 200. A mixing device 400 is detachably installed on the fixed tank 200 and is used to mix the soil in the mixing chamber. A drive device 500 is installed on the frame 100 and is used to drive the movable tank 300 to switch between the first and second positions. Sealing rubber is provided at the contact points between the fixed tank 200 and the movable tank 300 to prevent leakage. When large rocks or compacted soil blocks the discharge port 210, the drive unit 500 moves the movable tank 300 to a second position, separating it from the fixed tank 200 to facilitate cleaning the soil from the mixing chamber. After cleaning, the drive unit 500 moves the movable tank 300 back to the first position, and operation can continue. This integrated design achieves a continuous closed-loop operation encompassing contaminated soil feeding, reagent mixing, and fault self-handling, significantly improving the efficiency of heavy metal pollution treatment.

[0037] Reference Figure 8As shown, the stirring device 400 includes a mounting plate 410, a motor 420, and a stirring shaft 430. The mounting plate 410 is bolted to the upper edge of the fixed tank 200. The mounting plate 410 is horizontally positioned and fully covers the horizontal cross-section of the fixed tank 200, forming a stable support platform. The horizontal dimension of the mounting plate 410 is the same as that of the fixed tank 200. The mounting plate 410 is integrally formed with a cantilevered protrusion 411, which extends above the discharge port 210 and above the geometric center of the stirring chamber. The motor 420 is bolted to the cantilevered protrusion 411. The stirring shaft 430 passes vertically through the cantilevered protrusion 411 and is connected to the motor 420 for transmission. Multiple stirring blades are connected to the stirring shaft 430. The specific structures of the motor 420 and the stirring shaft 430 are existing technologies and will not be described in detail. The stirring shaft 430 is located in the center of the stirring chamber, which can effectively avoid material jamming while achieving deep soil mixing, and allows the soil stabilizer and the polluting medium to achieve molecular-level interaction and penetration.

[0038] Reference Figure 1 and Figure 8 As shown, a protective cover 600 is inclinedly mounted on the upper end of the mounting plate 410. The protective cover 600 is welded to the mounting plate 410 and is located above the motor 420. The protective cover 600 is used to guide the soil into the mixing chamber. Since the motor 420 is mounted above the mixing chamber, it may be hit when soil is added to the container. Therefore, the protective cover 600 is added to protect the motor 420. The protective cover 600 not only provides protection but also guides the falling soil precisely into the mixing chamber.

[0039] Reference Figure 2 and Figure 8 As shown, the protective cover 600 includes a ramp 610 and a ridge portion 620, which are welded together. The top surfaces of both the ramp 610 and the ridge portion 620 are polished smooth to reduce friction with the soil and effectively prevent soil particles from accumulating. The ridge portion 620 is located above the cantilevered convex plate 411. The interior of the ridge portion 620 is hollow to provide space for the motor 420 to be installed. The motor 420 is installed inside the ridge portion 620. The top of the ridge portion 620 is ridge-shaped to prevent soil accumulation. The ramp 610 is positioned above the mounting plate 410, with an inclination angle of 30 to 50 degrees. The ridge portion 620 prevents soil from accumulating on the motor 420, and the ramp 610 prevents soil from accumulating on the mounting plate 410. The sloping design of the ridge section 620, combined with the kinetic energy attenuation structure of the inclined plate 610, reduces the impact energy of falling materials and prevents damage to the mixing blades inside the mixing chamber.

[0040] Reference Figure 8As shown, the left end of the ridge section 620 extends through the inclined plate 610, and the opening at the left end of the ridge section 620 forms an embedded installation channel, providing convenient operating space for the installation of the power unit. The opening at the left end of the ridge section 620 is located below the inclined plate 610, effectively preventing external soil particles from intruding into the interior of the ridge section 620 while installing the motor 420. The opening design at the left end of the ridge section 620 not only achieves basic assembly functions but also integrates an active cooling system solution. It forms a flow channel, enabling continuous convection circulation and quickly dissipating the heat generated by the motor 420 through natural ventilation.

[0041] Reference Figure 7 As shown, it can be understood that a support plate 220 is provided on the inner wall of the fixed tank 200. The support plate 220 and the side wall of the fixed tank 200 form a stepped support structure, and the lower end of the mounting plate 410 abuts against the upper end of the support plate 220. The support plate 220 serves both as a rigid support base to stabilize the posture of the mounting plate 410 and as a rapid positioning reference through geometric fit, significantly optimizing the assembly time required.

[0042] Reference Figures 1 to 5 As shown, the drive unit 500 includes a pulley 510, a rope 520, and a winch 530. The pulley 510 is rotatably mounted on the top of the frame 100 via a mounting base, and the winch 530 is connected to the frame 100. Because the winch 530 is heavy and inconvenient to install, it is placed on the ground below the frame 100 for easy maintenance and disassembly. The specific structure of the winch 530 is existing technology and will not be described in detail. One end of the rope 520 is connected to the winch 530, and the other end is connected to the upper end of the movable tank 300 away from the fixed tank 200. The rope 520 passes over the pulley 510. By pulling the rope 520, the winch 530 controls the movable tank 300 to move against gravity to a second position. When the winch 530 releases the rope 520, the movable tank 300 moves to a first position under the action of gravity.

[0043] Reference Figure 4 and Figure 5 As shown, it can be understood that a lifting ring 320 is welded to the upper end of the movable tank 300 on the side away from the fixed tank 200, and a rope 520 is connected to the lifting ring 320. When switching is required, the rope 520 is knotted and fixed to the lifting ring 320 to complete the connection. During normal operation, the rope 520 is removed to avoid obstructing the feeding of the mixing chamber.

[0044] Reference Figure 1 and Figure 5 As shown, it can be understood that a fixed plate 230 is provided on the side of the fixed tank 200, and a movable plate 330 is provided on the side of the movable tank 300. The movable plate 330 and the fixed plate 230 can be bolted together to fix the movable tank 300 in the first position.

[0045] Reference Figures 3 to 6 As shown, it can be understood that a gate valve is connected to the lower end of the fixed tank 200. The gate valve is used to control the flow rate of soil discharged from the outlet 210. The gate valve adjusts its opening according to the flow rate of soil entering the mixing chamber, so that the soil in the mixing chamber is maintained at a suitable height to improve mixing efficiency. It is foreseeable that the mixing chamber can be continuously fed and discharged, or intermittently fed and discharged. Intermittent feeding and discharging has a slower processing speed but better mixing uniformity, while continuous feeding and discharging has a faster processing speed but poorer mixing uniformity. The discharge method can be selected according to the actual physical and chemical properties of the soil.

[0046] Working principle: Soil enters the mixing chamber from above, and stabilizer enters the mixing chamber through stabilizer inlet 201. Motor 420 drives mixing shaft 430 to mix the soil and stabilizer evenly. The mixture is then discharged from outlet 210. When large rocks or compaction in the soil cause blockage at outlet 210, the bolts between movable plate 330 and fixed plate 230 are removed. Winch 530, by pulling rope 520, controls movable tank 300 to move against gravity to a second position, separating it from fixed tank 200 to facilitate cleaning the soil from the mixing chamber. After cleaning, winch 530 releases rope 520, and movable tank 300 moves back to the first position under gravity. The bolts between movable plate 330 and fixed plate 230 are then installed, and soil and stabilizer can continue to be added for mixing.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A soil heavy metal pollution remediation device, characterized in that, include: Rack (100); The fixed tank (200) is fixedly connected to the frame (100); The movable tank (300) is hinged to the upper end of the fixed tank (200). The fixed tank (200) has a stabilizer inlet (201) connected to its side. The movable tank (300) has a guide funnel (310) at its upper end. The movable tank (300) has a first position and a second position. When the movable tank (300) is in the first position, the fixed tank (200) abuts against the movable tank (300), and a stirring chamber is formed between the fixed tank (200) and the movable tank (300). The lower end of the fixed tank (200) and the lower end of the movable tank (300) form a discharge port (210) for soil discharge. The upper opening of the stirring chamber is for receiving soil. When the movable tank (300) is in the second position, the movable tank (300) is separated from the fixed tank (200). A stirring device (400) is detachably installed on the fixed tank (200), and the stirring device (400) is used to stir the soil in the stirring chamber; A drive unit (500) is mounted on the frame (100) for driving the movable tank (300) to switch between a first position and a second position.

2. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The stirring device (400) includes a mounting plate (410), a motor (420), and a stirring shaft (430). The mounting plate (410) is detachably connected to the upper end of the fixed tank (200). The mounting plate (410) is connected to a cantilever protrusion (411), which extends above the discharge port (210). The motor (420) is mounted above the cantilever protrusion (411), and the stirring shaft (430) passes through the cantilever protrusion (411) and is connected to the motor (420) for transmission.

3. The soil heavy metal pollution remediation device according to claim 2, characterized in that: The mounting plate (410) is provided with a protective cover (600) at its upper end at an inclination. The protective cover (600) is located above the motor (420) and is used to guide the soil into the mixing chamber.

4. The soil heavy metal pollution remediation device according to claim 3, characterized in that: The protective cover (600) includes a sloping plate (610) and a ridge section (620). The ridge section (620) is located above the cantilevered convex plate (411). The interior of the ridge section (620) is hollow. The motor (420) is installed inside the ridge section (620). The sloping plate (610) is located above the mounting plate (410). The ridge section (620) is used to prevent soil from accumulating on the motor (420). The sloping plate (610) is used to prevent soil from accumulating on the mounting plate (410).

5. The soil heavy metal pollution remediation device according to claim 4, characterized in that: The left end of the ridge section (620) passes through the inclined plate (610), and the left end of the ridge section (620) is open to facilitate the installation of the motor (420).

6. The soil heavy metal pollution remediation device according to claim 4, characterized in that: The inner wall of the fixed tank (200) is provided with a support plate (220), and the lower end of the mounting plate (410) abuts against the upper end of the support plate (220).

7. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The drive device (500) includes a pulley (510), a rope (520), and a winch (530). The pulley (510) is located on the top of the frame (100), and the winch (530) is connected to the frame (100). One end of the rope (520) is connected to the winch (530), and the other end is connected to the upper end of the movable tank (300) away from the fixed tank (200). The rope (520) passes around the pulley (510).

8. The soil heavy metal pollution remediation device according to claim 7, characterized in that: A lifting ring (320) is provided on the upper end of the movable tank (300) away from the fixed tank (200), and the rope (520) is connected to the lifting ring (320).

9. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The fixed tank (200) has a fixing plate (230) on its side, and the movable tank (300) has a movable plate (330) on its side. The movable plate (330) and the fixing plate (230) can be bolted together to fix the movable tank (300) in a first position.

10. The soil heavy metal pollution remediation device according to claim 1, characterized in that: The lower end of the fixed tank (200) is connected to a gate valve, which is used to control the flow rate of soil discharged from the outlet (210).

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