A contaminated soil crushing and mixing in-situ remediation device

Abstract

This utility model discloses an in-situ remediation device for contaminated soil crushing and mixing, relating to the field of soil remediation technology. It includes a tractor-like vehicle body capable of driving in a field; a dosing mechanism located on one side of the tractor's front for applying chemicals to the contaminated soil surface; a plowing assembly located on one side of the tractor's rear for coarsely turning the soil after application of chemicals; and a rotary tiller assembly located on one side of the tractor's rear, positioned behind the plowing assembly in the forward direction of the tractor body. The rotary tiller assembly includes suspension frames located on the left and right sides of the tractor's rear, one end of which is fixedly connected to the tractor body, and the other end of which is equipped with a rotary tiller frame. A first hydraulic rod is also provided between the rotary tiller frame and the tractor body, one end of which is hinged to the suspension frame, and the other end of which is hinged to the rotary tiller frame. A drive shaft is horizontally mounted on the rotary tiller frame, and chainsaws are spaced apart on the drive shaft. The drive shaft and the drive sprockets of the chainsaws are coaxially and fixedly connected. A transmission assembly is located on one side of the rotary tiller frame and connected to the drive shaft.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically to an in-situ remediation device for contaminated soil that involves crushing and mixing. Background Technology

[0002] Treatment of heavy metal contaminated soil mainly includes barrier landfill, soil washing, bioremediation, and solidification / stabilization. Solidification and stabilization remediation technology involves adding solidifying / stabilizing agents to contaminated soil, allowing them to fully mix with the contaminated medium or pollutants. Through adsorption, precipitation, ion exchange, and physical encapsulation, the solubility, leaching toxicity, and bioavailability of heavy metal pollutants in the soil are reduced. Solidification and stabilization remediation technologies can be further divided into in-situ remediation and ex-situ remediation. In-situ remediation, which disposes of pollutants on-site, does not require the construction of expensive surface environmental engineering infrastructure, does not require long-distance transportation, is simple to operate and maintain, has lower treatment costs, and has less impact on the surrounding environment, making it a research hotspot in soil remediation.

[0003] Existing plow-tillage machines used for in-situ soil remediation are mostly based on agricultural machinery, and the soil remediation depth is mostly concentrated between 250 and 300 cm, which limits the remediation depth of contaminated soil. Utility Model Content

[0004] Therefore, this utility model provides a contaminated soil crushing and mixing in-situ remediation device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A contaminated soil crushing and mixing in-situ remediation device includes:

[0007] The vehicle body is a tractor capable of traveling in fields;

[0008] A dosing mechanism, which is located on one side of the vehicle front, is used to apply pesticides to the contaminated soil surface on one side of the vehicle front;

[0009] A tillage assembly, located on one side of the rear of the vehicle, is used to coarsely till the soil after pesticide application.

[0010] A rotary tiller assembly is located on one side of the rear of the vehicle and behind the plow assembly in the forward direction of the vehicle body. The rotary tiller assembly includes suspension frames located on the left and right sides of the rear of the vehicle body. One end of the suspension frame is fixedly connected to the vehicle body, and the other end of the suspension frame is provided with a rotary tiller frame. A first hydraulic rod is also provided between the rotary tiller frame and the vehicle body. One end of the first hydraulic rod is hinged to the suspension frame, and the other end of the first hydraulic rod is hinged to the rotary tiller frame. A drive shaft is horizontally arranged on the rotary tiller frame, and chainsaws are spaced apart on the drive shaft. The drive shaft is coaxially and fixedly connected to the drive sprocket of the chainsaw.

[0011] A transmission assembly is disposed on one side of the rotary tiller and is connected to a transmission shaft for driving the transmission shaft to rotate.

[0012] Optionally, the dosing mechanism includes a dosing tank, which is fixedly connected to the front end of the vehicle and is horn-shaped. The bottom of the dosing tank has a dosing outlet, and a delivery cylinder is provided at the dosing outlet. The delivery cylinder is closed at both ends and is connected to the dosing tank through the dosing outlet. An auger assembly is provided inside the delivery cylinder, and the bottom of the delivery cylinder has spaced-apart discharge holes.

[0013] Optionally, a vibration motor is provided on one side of the dosing tank to vibrate the dosing tank to dispense the medicine.

[0014] Optionally, the spiral blades on the auger assembly are arranged in two sections, with the two sections arranged in opposite directions from the middle to both sides.

[0015] Optionally, the plowing assembly includes a plow frame, which is fixedly connected to the vehicle body, and a plow blade is fixedly connected to the bottom of the plow frame.

[0016] Optionally, the feeding holes are provided in two rows, and the angle between the axis of the two rows of feeding holes and the vertical plane is 15°.

[0017] This utility model has at least the following beneficial effects:

[0018] This utility model uses a dosing mechanism located at the front of the vehicle to apply pesticides in the direction the vehicle is moving. At the rear of the vehicle are a plowing component and a rotary tilling component. The plowing component breaks up the soil subsurface, and the rotary tilling component mechanically tills the soil, breaking it up. During the breaking up process, the pesticide is thoroughly mixed with the soil. At the same time, a first hydraulic rod is located between the rotary tiller and the suspension frame. The extension and retraction of the first hydraulic rod can drive the rotary tiller to rotate, adjusting the angle between the chainsaw on the rotary tiller and the ground, thereby changing the depth of rotary tillage and adjusting the depth of soil remediation. Attached Figure Description

[0019] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a first-view structural diagram of an embodiment of the present invention;

[0022] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the dosing mechanism according to one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the drug delivery cylinder according to one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the drug delivery cylinder according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Vehicle body; 2. Dosing mechanism; 21. Dosing tank; 22. Dosing cylinder; 23. Screw assembly; 24. Discharge hole; 3. Plowing assembly; 31. Plow frame; 33. Plow blade; 4. Rotary tillage assembly; 41. Suspension frame; 42. Rotary tillage frame; 43. First hydraulic rod; 44. Chainsaw; 45. Transmission assembly; 5. Vibration motor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0030] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0031] like Figures 1-5 As shown, this utility model discloses a contaminated soil crushing and mixing in-situ remediation device, comprising:

[0032] Vehicle body 1, which is a tractor capable of traveling in the field;

[0033] The dosing mechanism 2 is located on one side of the front of the vehicle and is used to apply pesticides to the contaminated soil on one side of the front of the vehicle.

[0034] The plowing component 3 is located on one side of the rear of the vehicle and is used to coarsely turn the soil after the pesticide has been applied.

[0035] Rotary tillage assembly 4 is located on one side of the rear of the vehicle and behind the plowing assembly 3 in the forward direction of the vehicle body 1. The rotary tillage assembly 4 includes suspension frames 41 located on the left and right sides of the rear of the vehicle body 1. One end of the suspension frame 41 is fixedly connected to the vehicle body 1, and the other end of the suspension frame 41 is provided with a rotary tillage frame 42. A first hydraulic rod 43 is also provided between the rotary tillage frame 42 and the vehicle body 1. One end of the first hydraulic rod 43 is hinged to the suspension frame 41, and the other end of the first hydraulic rod 43 is hinged to the rotary tillage frame 42. A drive shaft is horizontally arranged on the rotary tillage frame 42, and chainsaws 44 are spaced apart on the drive shaft. The drive shaft and the drive sprocket of the chainsaws 44 are coaxially and fixedly connected.

[0036] A transmission assembly 45 is disposed on one side of the rotary tiller 42 and is connected to a transmission shaft for driving the transmission shaft to rotate.

[0037] The vehicle body 1 mentioned above is selected according to the environment of the soil to be remediated, and the appropriate vehicle type is generally a tractor;

[0038] The dosing mechanism 2 is located at the front of the vehicle body 1 in the direction of travel, usually at the front of the vehicle. The dosing operation is carried out first at the front of the vehicle. The plowing component 3 and the rotary tillage component 4 are located on one side of the rear of the vehicle. Depending on the treatment needs, in the direction of travel, the plowing component 3 is located in front of the rotary tillage component 4. The plowing component 3 breaks up the bottom layer of the plow first, and then the rotary tillage mechanism breaks up the soil and mixes it thoroughly with the medicine, thereby ensuring the remediation effect.

[0039] To improve the repair depth, the rotary tillage assembly 4 is configured with an adjustable angle structure, that is, a suspension frame 41 is fixed on each side of the rear of the vehicle. The suspension frame 41 is used to support the rotary tillage assembly 4. In this embodiment, one end of the suspension frame 41 is fixed to the two sides of the rear of the vehicle, and the other end of the suspension frame 41 is connected to the rotary tillage frame 42. The rotary tillage frame 42 is hinged to the suspension frame 41. A drive shaft is passed through the rotary tillage frame 42. The drive sprockets of multiple chainsaws 44 are sleeved and fixed on the drive shaft. The chainsaw 44 body is fixedly connected to the rotary tillage frame 42, so that the drive sprocket can be rotated by driving the drive shaft to rotate, and the drive sprocket can drive the driven sprocket and the chain to rotate, thereby completing the rotary tillage and crushing of the soil. A transmission mechanism is set on one side of the rotary tillage frame 42. The transmission mechanism can use a transmission pulley to connect the drive shaft and the motor shaft to drive the drive shaft.

[0040] In one specific embodiment, the dosing mechanism 2 includes a dosing tank 21, which is fixedly connected to the front end of the vehicle and is flared. The bottom of the dosing tank 21 is provided with a dosing outlet, and a delivery cylinder 22 is provided at the dosing outlet. The delivery cylinder 22 is closed at both ends and is connected to the dosing tank 21 through the dosing outlet. An auger assembly 23 is provided inside the delivery cylinder 22, and a discharge hole 24 is provided at a position corresponding to the auger assembly 23 at a time interval at the bottom of the delivery cylinder 22.

[0041] The aforementioned dosing tank 21 is fixed to the front end of the vehicle. The dosing tank 21 has a trumpet-shaped structure, wider at the top and narrower at the bottom. A dispensing port is located at the bottom of the dosing tank 21. The delivery cylinder 22 is connected to the bottom of the dosing tank 21, and the dosing tank 21 is connected to the delivery cylinder 22 through the dispensing port. The dosing tank 21 and the delivery cylinder 22 are fixedly connected. Solid pesticides in the dosing tank 21 fall into the delivery cylinder 22 through the dispensing port. The dosing tank 21 is connected to the middle of the delivery cylinder 22. An auger assembly 23 is installed inside the delivery cylinder 22 to convey solid pesticides to both ends of the delivery cylinder 22. The auger assembly 23 consists of two opposing augers on a single shaft. The spiral blade structure is divided into two sections at the outlet, so that the solid medicine can be conveyed to both sides when the auger assembly 23 rotates. A motor is installed on the outer side of one end of the delivery cylinder 22 to drive the auger assembly 23 to rotate. During the process of the auger assembly conveying the solid medicine, in order to facilitate the dispensing of medicine, the bottom of the delivery cylinder 22 is provided with a feeding hole 24. The feeding holes 24 are spaced apart along the axis of the delivery cylinder, and there are two rows of feeding holes 24. The axis of the two rows of feeding holes 24 is set at an angle of 15 degrees with the vertical plane, and the two rows of feeding holes 24 are staggered to facilitate the dispensing of medicine.

[0042] To improve the efficiency of drug dispensing, a vibration motor 5 is installed on one side of the drug dispensing box 21 to make the drug dispensing box 21 vibrate to dispense the drug.

[0043] By installing a vibration motor 5 on the dosing tank 21, the vibration motor 5 provides vibration force to the dosing tank 21, causing the dosing tank 21 to vibrate slightly, thus preventing the dosing outlet from being blocked.

[0044] The plowing assembly 3 includes a plow frame 31, which is fixedly connected to the vehicle body 1, and a plow blade 33 is fixedly connected to the bottom of the plow frame 31.

[0045] The aforementioned plow frame 31 is positioned between the rotary tillage assembly 4 at the rear of the vehicle and the vehicle body 1. The plow blade 33 is fixed at the bottom of the plow frame 31 to break up the bottom layer of the plow.

[0046] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0048] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A contaminated soil crushing and mixing in-situ remediation apparatus, characterized by, Include: The vehicle body is a tractor capable of driving in the field; The dosing mechanism is arranged on one side of the vehicle head, which is used to spray the contaminated soil surface on one side of the vehicle head; Ploughing assembly, the ploughing assembly is arranged on one side of the tail of the vehicle, which is used to rough plough the soil after spraying; The rotary tillage assembly is arranged on one side of the tail of the vehicle and is located at the rear side of the ploughing assembly in the forward direction of the vehicle body, the rotary tillage assembly includes a suspension bracket arranged on the left and right sides of the tail of the vehicle body, one end of the suspension bracket is fixedly connected with the vehicle body, the other end of the suspension bracket is provided with a rotary tillage frame, a first hydraulic rod is further arranged between the rotary tillage frame and the vehicle body, one end of the first hydraulic rod is hinged with the suspension bracket, the other end of the first hydraulic rod is hinged with the rotary tillage frame, a transmission shaft is horizontally arranged on the rotary tillage frame, chain saws are arranged on the transmission shaft at intervals, and the transmission shaft is coaxially fixedly connected with the driving sprocket of the chain saws; The transmission assembly is arranged on one side of the rotary tillage frame, the transmission assembly is connected with the transmission shaft, and is used to drive the transmission shaft to rotate.

2. The apparatus for remediation of contaminated soil by crushing and mixing in situ according to claim 1, characterized in that: The dosing mechanism includes a dosing box, the dosing box is fixedly connected to the front end of the vehicle head, and the dosing box is arranged in a horn shape, the bottom of the dosing box is provided with a medicine outlet, the medicine outlet is provided with a medicine feeding cylinder, the medicine feeding cylinder is closed at both ends, and the medicine feeding cylinder is communicated with the dosing box through the medicine outlet, a screw conveyor assembly is arranged in the medicine feeding cylinder, and a discharge hole is arranged at intervals in the bottom of the medicine feeding cylinder.

3. A device for remediation of contaminated soil by crushing and mixing in situ according to claim 2, characterized in that: A vibration motor is arranged on one side of the dosing box, which is used to vibrate the dosing box to discharge medicine.

4. The apparatus for remediation of contaminated soil by crushing and mixing in situ according to claim 2, characterized in that: The spiral blades on the screw conveyor assembly are two-section arranged, and the two-section spiral blades are arranged in opposite directions from the middle to both sides.

5. The apparatus for remediation of contaminated soil according to claim 1, wherein: The ploughing assembly includes a plough frame, the plough frame is fixedly connected with the vehicle body, and the bottom of the plough frame is fixedly connected with a plough blade.

6. The apparatus for remediation of contaminated soil by crushing and mixing in situ according to claim 2, characterized in that: The discharge hole is provided with two rows, and the included angle between the axis of the two rows of discharge holes and the vertical plane is 15°.

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