Plant cultivation device for purifying heavy metal contaminated soil

Abstract

The utility model relates to the technical field of contaminated soil remediation, and discloses a plant cultivation device for purifying heavy metal contaminated soil, which comprises a cultivation component and a planting opening arranged on the periphery of the upper end of the cultivation component, and scraping components are movably mounted on the periphery of the outer wall of the cultivation component. After an operator embeds a cultivation assembly planted with plants into polluted soil, after the adsorption capacity of the plants in the cultivation assembly reaches saturation, and when the whole cultivation assembly needs to be collected from the polluted soil, soil around the cultivation assembly is loosened through a shovel, and then the cultivation assembly is separated from the polluted soil; the corresponding frames are pulled to drive the long rods, the annular square blocks and the sharp corner blocks to move upwards along the side walls of the cultivation assemblies, so that plant roots extending out of the through holes are cut off through the sharp corner blocks, pulling force generated when the cultivation assemblies are lifted is reduced, the cultivation assemblies can be conveniently taken out of the contaminated soil, and use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of contaminated soil remediation, and particularly relates to a plant cultivation device for purifying heavy metal contaminated soil. Background Technique

[0002] With the development of industry and the acceleration of urbanization, soil pollution has accelerated, and thus the treatment and remediation of contaminated soil have gradually attracted people's attention. Among them, phytoremediation technology is an important measure for separating heavy metals in soil. Phytoremediation technology refers to the use of plants to extract, absorb, decompose, transform and immobilize heavy metal pollutants in soil, sediment, sludge, surface water and groundwater.

[0003] According to different plant species, different purification effects can be produced on different heavy metals. Some plants can absorb some types of heavy metals into their roots, stems and leaves. After collecting the plants, the heavy metals can be separated from the soil, and then the collected plants can be centrally treated; some plants can perform root filtration, by absorbing and accumulating some types of heavy metals on the root surface or enriching heavy metals in the soil near the roots, and then collecting the plants adsorbed with heavy metals and the surface soil, the heavy metals can be separated from the soil.

[0004] For example, the heavy metal contaminated soil purification plant cultivation device with the application number CN201821712508.4 includes the settings of a cultivation frame, a planting opening, and a soil bearing surface. By using the root filtration effect of some plants, some types of heavy metals can be enriched on the root surface of the plants and in the soil near the plant roots. After the adsorption capacity of the plants in the cultivation device reaches saturation, the entire cultivation device is retracted, and the soil in the cultivation device together with the plants is collected and treated, rather than simply collecting the plants, which is beneficial to fully remove heavy metals, and the cultivation device can be reused.

[0005] In the above patent, plants are planted in the inner cavity of the cultivation device, the cultivation device is buried in the contaminated soil, and then the roots of the plants during the growth process are used to adsorb heavy metals in the soil. After the adsorption capacity of the plants in the cultivation device reaches saturation, the entire cultivation device is retracted from the contaminated soil. However, during the growth process of the plants, their roots will penetrate through the through holes around the cultivation device and drill into the contaminated soil, which makes it difficult for the operator to take out the cultivation device from the contaminated soil when retracting the cultivation device.

[0006] Therefore, we propose a plant cultivation device for purifying heavy metal contaminated soil to solve the above-mentioned problems. Content of the Utility Model

[0007] The purpose of the present utility model is to provide a plant cultivation device for purifying heavy metal - contaminated soil, so as to solve the problem proposed in the above - mentioned background technology that when the operator stores the cultivation device, the plant roots penetrate into the contaminated soil and it is not easy to take out the cultivation device from the contaminated soil.

[0008] To achieve the above - mentioned purpose, the present utility model provides the following technical solutions: A plant cultivation device for purifying heavy metal - contaminated soil, including a cultivation component and a planting opening formed around the upper end of the cultivation component. A plurality of through - holes are linearly and equidistantly formed around the outer wall of the cultivation component. A scraping component is movably installed around the outer wall of the cultivation component. The scraping component is arranged to separate the roots protruding from the through - holes from the contaminated soil. A prompting component is snap - fitted and installed on one side of the upper end of the cultivation component. The prompting component is arranged to adapt to the growth situation of the placed plants;

[0009] The scraping component includes a moving mechanism and pulling mechanisms respectively fixed to the four corners of the upper end of the moving mechanism. The pulling mechanisms are arranged to drive the moving mechanism to move up and down.

[0010] Preferably, the cultivation component includes a hollow frame and sliding long grooves respectively formed around the outer wall of the hollow frame. An insertion slot is formed in the middle of one side of the upper end of the hollow frame, and clamping grooves are formed around the inner wall of the insertion slot.

[0011] Preferably, the moving mechanism includes an annular block and pointed - angle blocks respectively fixed to the four corners of the upper end of the annular block. Limiting blocks are respectively fixed to the four corners of the inner wall of the annular block.

[0012] Preferably, the pulling mechanism includes a corresponding frame and long rods respectively fixed to the four corners of the lower end of the corresponding frame.

[0013] Preferably, the prompting component includes a transparent frame and a placement groove formed in the middle of one end of the transparent frame.

[0014] Preferably, a plug board is fixed to the middle of the lower end of the transparent frame, and clamping strips are fixed to the four corners of the outer wall of the plug board.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. After loosening the soil around the cultivation component with a spade, then pull the corresponding frame to drive the long rods, the annular block and the pointed - angle blocks to move upward along the side wall of the cultivation component, so as to cut off the plant roots protruding from the through - holes, which is convenient for taking out the cultivation component from the contaminated soil and is easy to use.

[0017] 2. The operator can record on the paper strip according to the growth condition of the plants, and then insert the paper strip into the inner cavity of the placement groove. Such a setting enables the operator to directly observe the growth condition of the plants in the inner cavities of different cultivation components through the transparent frame, so as to harvest the saturated plants. Brief Description of the Drawings

[0018] Figure 1 is the overall three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is the three-dimensional structural schematic diagram of the prompting component of the present utility model;

[0020] Figure 3 is the three-dimensional structural schematic diagram of the scraping component of the present utility model;

[0021] Figure 4 is of the present utility model Figure 3 enlarged view at A.

[0022] In the figure: 1. Cultivation component; 11. Hollow frame; 12. Sliding long groove; 13. Insertion groove; 14. Card slot; 2. Planting opening; 3. Through hole; 4. Scraping component; 41. Moving mechanism; 411. Ring-shaped square block; 412. Sharp-corner block; 413. Limit block; 42. Pulling mechanism; 421. Corresponding frame; 422. Long rod; 5. Prompting component; 51. Transparent frame; 52. Placement groove; 53. Insertion plate; 54. Card strip. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1: Please refer to Figures 1 - 4 , a plant cultivation device for purifying heavy metal-polluted soil, including a cultivation component 1 and a planting opening 2 opened around the upper end of the cultivation component 1. A plurality of through holes 3 are linearly and equidistantly arranged around the outer wall of the cultivation component 1. A scraping component 4 is movably installed around the outer wall of the cultivation component 1. The scraping component 4 is arranged to be suitable for separating the root systems protruding from the through holes 3 and the polluted soil. A prompting component 5 is snap-fitted and installed on one side of the upper end of the cultivation component 1. The prompting component 5 is arranged to adapt to the growth condition of the plants.

[0025] The planting openings 2 on the cultivation component 1 can all be used to plant plants that can directly absorb or adsorb heavy metals. The plants to be planted can be Pteris vittata, Pteris cretica L. var. nervosa, Pityrogramma calomelanos, Pennisetum americanum × P. purpureum, Solanum nigrum, etc.

[0026] The scraping component 4 includes a moving mechanism 41 and pulling mechanisms 42 respectively and fixedly installed at the four corners of the upper end of the moving mechanism 41. The pulling mechanisms 42 are arranged to drive the moving mechanism 41 to move up and down.

[0027] The cultivation component 1 includes a hollow frame 11 and sliding long grooves 12 respectively opened around the outer wall of the hollow frame 11. The limiting blocks 413 are slidably installed in the inner cavities of the sliding long grooves 12.

[0028] The moving mechanism 41 includes an annular square block 411 and pointed corner blocks 412 respectively and fixedly installed around the upper end of the annular square block 411. Limiting blocks 413 are respectively and fixedly installed around the inner wall of the annular square block 411. The pointed corner blocks 412 are arranged to separate the plant roots through their pointed corner positions when the long rod 422 drives it to move upward.

[0029] The pulling mechanism 42 includes corresponding frames 421 and long rods 422 respectively and fixedly installed at the four corners of the lower end of the corresponding frames 421. The lower ends of the long rods 422 are respectively and fixedly installed at the four corners of the upper end of the annular square block 411.

[0030] In this embodiment: After the operator buries the cultivation component 1 planted with plants into the polluted soil, when the adsorption capacity of the plants in the cultivation component 1 reaches saturation and the entire cultivation component 1 needs to be retrieved from the polluted soil, first loosen the soil around the cultivation component 1 with a spade, and then pull the corresponding frame 421 to drive the long rod 422, the annular square block 411 and the pointed corner blocks 412 to move upward along the side wall of the cultivation component 1, so as to cut off the plant roots protruding from the through holes 3 through the pointed corner blocks 412, thereby reducing the pulling force when lifting the cultivation component 1 and facilitating the removal of the cultivation component 1 from the polluted soil, which is convenient to use.

[0031] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 2 , an insertion slot 13 is opened in the middle of one side of the upper end of the hollow frame 11, and clamping grooves 14 are opened around the inner wall of the insertion slot 13.

[0032] The prompting component 5 includes a transparent frame 51 and a placement slot 52 opened in the middle of one end of the transparent frame 51. A plug board 53 is fixedly installed in the middle of the lower end of the transparent frame 51. Clamping strips 54 are fixedly installed around the outer wall of the plug board 53. The plug board 53 is movably installed in the inner cavity of the placement slot 52, and the clamping strips 54 are movably clamped in the inner cavity of the placement slot 52. The transparent frame 51 is arranged to place paper strips, which is convenient for the operator to observe and record the plants.

[0033] In this embodiment, the operator can record on the paper strip according to the growth condition of the plant, and then insert the paper strip into the inner cavity of the placement groove 52. Such a setting enables the operator to directly observe the growth condition of the plants in the inner cavities of different cultivation components 1 through the transparent frame 51, so as to collect the plants that have reached saturation.

[0034] Working principle: After the operator buries the cultivation component 1 planted with plants into the contaminated soil, when the adsorption capacity of the plants in the cultivation component 1 reaches saturation and the whole cultivation component 1 needs to be retrieved from the contaminated soil, first loosen the soil around the cultivation component 1 with a spade, and then pull the corresponding frame 421 to drive the long rod 422, the annular square block 411 and the pointed corner block 412 to move upward along the side wall of the cultivation component 1, so as to cut off the plant roots protruding from the through hole 3 by the pointed corner block 412, thereby reducing the pulling force when lifting the cultivation component 1 and facilitating the removal of the cultivation component 1 from the contaminated soil. The operator can record on the paper strip according to the growth condition of the plant, and then insert the paper strip into the inner cavity of the placement groove 52. Such a setting enables the operator to directly observe the growth condition of the plants in the inner cavities of different cultivation components 1 through the transparent frame 51, so as to collect the plants that have reached saturation.

[0035] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A plant cultivation device for purifying heavy metal - contaminated soil, comprising a cultivation component (1) and a planting opening (2) formed around the upper end of the cultivation component (1). A plurality of through - holes (3) are linearly and equidistantly formed around the outer wall of the cultivation component (1), and it is characterized in that: A scraping component (4) is movably installed around the outer wall of the cultivation component (1). The scraping component (4) is arranged to separate the root systems and contaminated soil protruding from the through holes (3). A prompting component (5) is snap-fitted and installed on one side of the upper end of the cultivation component (1). The prompting component (5) is arranged to adapt to the growth conditions of the placed plants; The scraping component (4) includes a moving mechanism (41) and pulling mechanisms (42) respectively fixed to the four corners of the upper end of the moving mechanism (41). The pulling mechanisms (42) are arranged to drive the moving mechanism (41) to move up and down.

2. The plant cultivation device for purifying heavy metal contaminated soil according to claim 1, wherein: The cultivation component (1) includes a hollow frame (11) and sliding long grooves (12) respectively opened around the outer wall of the hollow frame (11). A plug-in groove (13) is opened in the middle of one side of the upper end of the hollow frame (11), and clamping grooves (14) are opened around the inner wall of the plug-in groove (13).

3. The plant cultivation device for purifying heavy metal contaminated soil according to claim 1, characterized in that: The moving mechanism (41) includes an annular square block (411) and pointed blocks (412) respectively fixed to the four corners of the upper end of the annular square block (411). Limiting blocks (413) are respectively fixed to the four corners of the inner wall of the annular square block (411).

4. The plant cultivation device for purifying heavy metal contaminated soil according to claim 1, characterized in that: The pulling mechanism (42) includes a corresponding frame (421) and long rods (422) respectively fixed to the four corners of the lower end of the corresponding frame (421).

5. The plant cultivation device for purifying heavy metal contaminated soil according to claim 1, characterized in that: The prompting component (5) includes a transparent frame (51) and a placement groove (52) opened in the middle of one end of the transparent frame (51).

6. The plant cultivation device for purifying heavy metal contaminated soil according to claim 5, characterized in that: A plug board (53) is fixedly installed in the middle of the lower end of the transparent frame (51), and clamping strips (54) are fixedly installed around the outer wall of the plug board (53).

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