Soil heavy metal pollution treatment device

Abstract

A soil heavy metal pollution treatment device belongs to the field of soil treatment and comprises a box body, the top of the box body is open, two rotating rollers are rotatably mounted in the box body, a first driving mechanism for driving the rotating rollers to rotate is arranged on the box body, a guide plate is arranged above the rotating rollers and fixedly mounted in the box body, and a sieve plate is arranged below the rotating rollers. A plurality of nozzles are arranged below the sieve plate and are communicated with a liquid storage tank through a hose, a water pump communicated with the hose is arranged in the liquid storage tank, the rotating roller comprises a hollow roller, a plurality of slots which are uniformly and circumferentially distributed are respectively formed in the roller, and insertion plates are respectively arranged in the slots in a sliding fit manner and are respectively and elastically connected with the roller. The device is simple in structure and ingenious in conception, when the inserting plates make contact with hard stones, the inserting plates can retract into the roller under the counter-acting force, so that the situation that the device is stuck is avoided, soil is prone to being broken and can be broken when passing through the inserting plates, the actual requirement can be met, and the device is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the field of soil treatment, in particular to a device for treating soil heavy metal pollution. Background Art

[0002] Soil not only provides mechanical support for plant growth, but also provides the necessary fertility elements such as water, fertilizer, air, and heat for plant growth and development. With the development of industrialization and the extensive use of pesticides, many soils are contaminated by heavy metals, and heavy metal pollution in cultivated land is particularly serious. These heavy metals can easily enter the human body through the food chain, posing a great threat to people's health. Therefore, it is necessary to treat the soil contaminated by heavy metals. The patent with the authorization announcement number CN109174931U: "A device for treating soil heavy metal pollution" discloses a device for crushing and treating soil blocks by a crushing wheel. However, when the soil contains hard stones, the stones are hard and difficult to be crushed, which can easily cause the device to get stuck, affecting the treatment process. Therefore, we have designed a device for treating soil heavy metal pollution that is not easy to get stuck. Summary of the invention

[0003] The invention provides a device for treating heavy metal pollution in soil, which is used to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] A device for treating heavy metal pollution in soil comprises a box body, the top of which is open, two rotating rollers are rotatably installed in the box body, a first driving mechanism for driving the rotating rollers to rotate is provided on the box body, a guide plate is provided above the rotating rollers, the guide plate is fixedly installed in the box body, a sieve plate is provided below the rotating rollers, a plurality of nozzles are provided below the sieve plate, the nozzles are connected to a liquid storage tank through a hose, a water pump connected to the hose is provided in the liquid storage tank, the rotating roller comprises a hollow roller, a plurality of slots evenly distributed circumferentially are respectively provided on the roller, plug plates are respectively provided in the slots for sliding cooperation, and the plug plates are respectively elastically connected to the rollers.

[0006] In the device for controlling heavy metal pollution in soil as described above, the first driving mechanism includes a first motor, the first motor is fixedly mounted on a box body, coaxial transmission shafts are fixedly mounted on the rollers, the transmission shafts respectively pass through the box body, the output shaft of the first motor is fixedly connected to one of the transmission shafts, coaxial gears are fixedly mounted on the transmission shafts, and the two gears are meshed with each other.

[0007] In the device for controlling heavy metal pollution in soil as described above, threaded rods are rotatably installed in the rollers, and a plurality of nuts are threadedly installed on the threaded rods. One end of the threaded rods extends to the outside of the box body, and the plug plates are elastically connected to the movable plates through a plurality of first springs, and the nuts are hingedly connected to the movable plates through a plurality of connecting rods.

[0008] In the device for controlling heavy metal pollution in soil as described above, the plug plate is divided into several sections, each section of the plug plate is provided with a slide groove, a slide rod is slidably fitted in the slide groove, the slide rod is fixedly mounted on the corresponding movable plate, and each section of the plug plate is connected to the movable plate via a first spring.

[0009] In the above-mentioned device for treating heavy metal pollution in soil, a hand wheel is fixedly mounted on one end of the threaded rod extending to the outside of the box.

[0010] In a device for controlling heavy metal pollution in soil as described above, a vertical cylinder is provided below the box body, an outer shell is fixedly installed on the vertical cylinder, the outer shell is fixedly connected to the box body through several supporting rods, and the nozzle is fixedly installed in the vertical cylinder; the sieve plate includes a first rotating ring, and a filter mesh plate is fixedly installed on the first rotating ring; a second rotating ring is rotatably installed on the vertical cylinder through a bearing, the second rotating ring is elastically connected through several second springs, the first rotating ring and the second rotating ring are fixedly connected to the same soft cloth cylinder, and a second driving mechanism for driving the second rotating ring to rotate is provided on the vertical cylinder.

[0011] In the above-mentioned device for treating heavy metal pollution in soil, a cross bar is fixedly installed on the first rotating ring.

[0012] In the device for controlling heavy metal pollution in soil as described above, the second driving mechanism includes a bevel gear ring, which is fixedly mounted on the second rotating ring, and one side of the bevel gear ring is meshingly provided with a bevel gear, which is fixedly connected to the output shaft of the second motor, and the second motor is fixedly mounted on the vertical cylinder.

[0013] In the device for treating heavy metal pollution in soil as described above, a third rotating ring is rotatably installed in the vertical cylinder via a bearing, a plurality of vertical plates evenly distributed in a circle are fixedly installed in the third rotating ring, and the third rotating ring is fixedly connected to a bevel gear ring via a plurality of vertical rods.

[0014] The advantages of the present invention are: the present invention has a simple structure and an ingenious design. When the plug plate contacts a hard stone, the plug plate will shrink into the roller under the reaction force, thereby avoiding the situation where the device is stuck. The soil is easy to be broken and will be broken when passing through the plug plate. It can meet actual needs and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A cross-sectional view of the top view of the middle box; Figure 3 yes Figure 1 A top view of the first rotating ring; Figure 4 yes Figure 1 A top view of the third rotating ring.

[0017] 1. The invention relates to a liquid storage tank, wherein the first gear is an electric motor, wherein the first gear is an electric motor, wherein the first gear is an electric motor, and the second gear is an electric motor. 2. The invention relates to a liquid storage tank, wherein the first gear is an electric motor, wherein the first gear is an electric motor, and the second gear is an electric motor. 3. The invention relates to a liquid storage tank, wherein the first gear is an electric motor, wherein the first gear is an electric motor, and the second gear is an electric motor. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] A device for treating soil heavy metal pollution, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, it includes a box body 1, the top of the box body 1 is open, two rotating rollers are rotatably installed in the box body 1, and the two rotating rollers are symmetrically distributed on the left and right. A first driving mechanism for driving the rotating rollers to rotate is provided on the box body 1, a guide plate 2 is provided above the rotating rollers, and the guide plate 2 is fixedly installed in the box body 1, a sieve plate is provided below the rotating rollers, and a plurality of nozzles 4 are provided below the sieve plate, and the nozzles 4 are connected to a liquid storage tank 6 through a hose 5, and a water pump 7 connected to the hose 5 is provided in the liquid storage tank 6, and the rotating roller includes an internally hollow roller 10, and both ends of the roller 10 are rotatably connected to the inner wall of the box body 1 through sealed bearings, and a plurality of slots 11 evenly distributed circumferentially are respectively provided on the roller 10, and plug plates 12 are respectively provided in the slots 11 for sliding cooperation, and the plug plates 12 on the two rollers 10 are staggered, and the plug plates 12 are elastically connected to the rollers 10 respectively. The present invention has a simple structure and an ingenious design. When the plug plate 12 contacts a hard stone, the plug plate 12 will shrink into the roller 10 under the reaction force, thereby avoiding the situation where the device is stuck. The soil is easy to be broken and will be broken when passing through the plug plate 12. It can meet actual needs and is suitable for promotion. When treating soil, the contaminated soil is put in from the top of the box 1, and the soil falls between the two rollers 10 under the guidance of the guide plate 2. The roller 10 is driven to rotate by the driving mechanism, so that the plug plate 12 on the roller 10 breaks the soil, and then the soil falls onto the screen plate for filtration. At the same time, the water pump 7 transports the liquid in the liquid storage tank 6 to the nozzle 4 through the hose 5 for spraying and mixing with the soil to achieve the purpose of treatment; if the soil put into the box 1 contains hard stones, the hard stones will not be broken and squeeze the plug plate 12 into the roller 10, thereby avoiding the roller 10 from getting stuck, and then the stones fall onto the screen plate and are filtered out.

[0020] Specifically, if Figure 2 As shown, the first driving mechanism of this embodiment includes a first motor 20, which is fixedly mounted on the housing 1, one end of the first motor 20 is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the housing 1. Coaxial transmission shafts 21 are respectively fixedly mounted on the rollers 10, and the transmission shafts 21 respectively penetrate the housing 1 and are rotatably connected to the reserved holes on the housing 1 through sealed bearings. The output shaft of the first motor 20 is fixedly connected to one of the transmission shafts 21, and the transmission shaft 21 is coaxially arranged with the output shaft of the first motor 20. Coaxial gears 22 are respectively fixedly mounted on the transmission shaft 21, and the two gears 22 are meshed and matched. When the first motor 20 is running, the first motor 20 drives one of the transmission shafts 21 to rotate with the roller 10, and at the same time, through the transmission of the two gears 22, the two transmission shafts 21 rotate together, thereby realizing that the two rollers 10 rotate in opposite directions.

[0021] Specifically, Figure 1 and Figure 2As shown, in the roller 10 described in this embodiment, a threaded rod 30 is rotatably installed in each of the rollers 10, and a plurality of nuts 31 are threadedly installed on the threaded rod 30. The nut 31 and the threaded rod 30 are coaxially arranged with the corresponding roller 10, and one end of the threaded rod 30 extends to the outside of the box body 1, and the other end of the threaded rod 30 is rotatably connected to the inner wall of the roller 10 through a bearing, and one end of the threaded rod 30 is rotatably connected to the reserved hole on the roller 10 through the bearing, and extends to the outside of the box body 1 through the through hole on the box body 1, and the plug plate 12 is elastically connected to the movable plate 33 through a plurality of first springs 32, and the nut 31 is hingedly connected to the movable plate 33 through a plurality of connecting rods 34, and the connecting rods 34 on the same movable plate 33 are arranged in parallel, one end of the connecting rod 34 is hinged to the nut 31, and the other end of the connecting rod 34 is hinged to the movable plate 33, one end of the first spring 32 is fixedly connected to the movable plate 33, and the other end of the first spring 32 is fixedly connected to the plug plate 12. When the threaded rod 30 is rotated forward, the nut 31 moves along the threaded rod 30, so that the connecting rod 34 is unfolded, and the movable plate 33 and the first spring 32 are driven to move, thereby pushing the plug plate 12 to extend outward along the slot 11. The portion of the plug plate 12 outside the roller 10 is longer, so when the plug plate 12 is pushed to retract into the roller 10, the moving distance is longer, so that the first spring 32 can be compressed more, and the force required to compress the first spring 32 is greater, and the force required to push the plug plate 12 to move is greater; when the threaded rod 30 is rotated reversely, the moving distance of the plug plate 12 becomes shorter, the distance the first spring 32 is compressed becomes smaller, and the force required for compression becomes smaller; the compression force is adjusted according to demand, and the plug plate 12 can be adjusted to a suitable position according to the size of the stone, further avoiding the situation of jamming.

[0022] Further, such as Figure 2 As shown, the plug plate 12 of this embodiment is divided into several sections, and a slide groove 40 is respectively provided on each section of the plug plate 12, and a slide rod 41 is respectively provided in the slide groove 40 for sliding cooperation, and the slide rod 41 is fixedly installed on the corresponding moving plate 33, and each section of the plug plate 12 is respectively connected to the moving plate 33 through a first spring 32, and the first spring 32 is sleeved on the corresponding slide rod 41. The plug plate 12 is divided into multiple sections, and when one section of the plug plate 12 is squeezed into the roller 10 by a hard stone, the remaining sections of the plug plate 12 will not shrink into the roller 10, so that the plug plate 12 can still play the role of crushing soil blocks, and avoid the situation where the plug plate 12 is completely retracted into the roller 10 and loses the crushing effect.

[0023] Furthermore, if Figure 2 As shown, one end of the threaded rod 30 extending to the outside of the box body 1 is respectively fixedly mounted with a hand wheel 50. Rotating the threaded rod 30 by the hand wheel 50 is more convenient and labor-saving.

[0024] Furthermore, if Figure 1As shown, a vertical cylinder 60 is provided below the box body 1 described in this embodiment, and a shell 61 is fixedly installed on the vertical cylinder 60. The shell 61 is annular and fixedly connected to the box body 1 through several supporting rods, and the nozzle 4 is fixedly installed in the vertical cylinder 60; the sieve plate includes a first rotating ring 62, and a filter mesh plate 63 is fixedly installed on the first rotating ring 62; a second rotating ring 64 is rotatably installed on the vertical cylinder 60 through a bearing, and the second rotating ring 64 is coaxially arranged with the vertical cylinder 60, and the second rotating ring 64 is elastically connected through several second springs 65, one end of the second spring 65 is fixedly connected to the first rotating ring 62, and the other end of the second spring 65 is fixedly connected to the second rotating ring 64, and the first rotating ring 62 and the second rotating ring 64 are fixedly connected with the same soft cloth cylinder 66, one end of the soft cloth cylinder 66 is fixedly connected to the first rotating ring 62, and the other end of the soft cloth cylinder 66 is fixedly connected to the second rotating ring 64, and a second driving mechanism for driving the second rotating ring 64 to rotate is provided on the vertical cylinder 60. The second rotating ring 64 is driven to rotate by the second driving mechanism, and the first rotating ring 62 and the second spring 65 rotate together with the second rotating ring 64. Since the second spring 65 is elastic, the first rotating ring 62 cannot rotate stably and will shake, so that the broken soil blocks and hard stones are more easily filtered by the filter mesh plate 63. At the same time, the rotation of the first rotating ring 62 and the filter mesh plate 63 will cause the stones on them to have a tendency to move outward, so that they are thrown out of the first rotating ring 62 and fall into the outer shell 61.

[0025] Furthermore, if Figure 1 and Figure 3 As shown, in this embodiment, the cross bar 70 is fixedly installed on the first rotating ring 62. When the first rotating ring 62 rotates, the cross bar 70 also rotates together, and the cross bar 70 can drive the stones on the filter mesh plate 63 to revolve, thereby ensuring that the stones can be thrown out by the centrifugal force during the revolution, and avoiding the situation where the stones slip on the filter mesh plate 63 and cannot be thrown out.

[0026] Furthermore, if Figure 1 As shown, the second driving mechanism of this embodiment includes a bevel gear ring 80, which is fixedly mounted on the second rotating ring 64, and the bevel gear ring 80 is coaxially arranged with the second rotating ring 64. A bevel gear 81 is meshed and matched on one side of the bevel gear ring 80, and the bevel gear 81 is fixedly connected to the output shaft of the second motor 82. The second motor 82 is fixedly mounted on the vertical cylinder 60, and the bevel gear 81 is coaxially arranged with the output shaft of the second motor 82. The output shaft of the second motor 82 passes through the reserved hole on the vertical cylinder 60 and is rotatably connected to the inner wall of the reserved hole through the bearing. The operation of the second motor 82 drives the bevel gear 81 to rotate, and then drives the bevel gear ring 80 to rotate, thereby driving the second rotating ring 64 to rotate.

[0027] Furthermore, if Figure 1As shown, in the vertical cylinder 60 of this embodiment, a third rotating ring 90 is rotatably installed through a bearing, a plurality of vertical plates 91 evenly distributed in a circumference are fixedly installed in the third rotating ring 90, and the third rotating ring 90 is fixedly connected to the bevel gear ring 80 through a plurality of vertical rods 92. When the bevel gear ring 80 rotates, the vertical rods 92 drive the third rotating ring 90 to rotate together, and then drive the vertical plates 91 to rotate together, so that airflow is generated in the vertical cylinder 60, so that the liquid sprayed by the nozzle 4 can be better mixed with the filtered soil.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for treating heavy metal pollution in soil, comprising a box (1), the top of the box (1) is open, two rotating rollers are rotatably installed in the box (1), a first driving mechanism for driving the rotating rollers to rotate is provided on the box (1), a guide plate (2) is provided above the rotating rollers, the guide plate (2) is fixedly installed in the box (1), a sieve plate is provided below the rotating rollers, a plurality of nozzles (4) are provided below the sieve plate, the nozzles (4) are connected to a liquid storage tank (6) through a hose (5), a water pump (7) connected to the hose (5) is provided in the liquid storage tank (6), characterized in that: The rotating roller comprises a hollow roller (10), on which a plurality of slots (11) evenly distributed in a circumference are respectively provided, and insert plates (12) are respectively provided in the slots (11) in a sliding manner, and the insert plates (12) are respectively elastically connected to the roller (10).

2. The device for treating soil heavy metal pollution according to claim 1, characterized in that: The first driving mechanism comprises a first motor (20), the first motor (20) is fixedly mounted on the box body (1), coaxial transmission shafts (21) are fixedly mounted on the rollers (10), the transmission shafts (21) respectively penetrate the box body (1), the output shaft of the first motor (20) is fixedly connected to one of the transmission shafts (21), coaxial gears (22) are fixedly mounted on the transmission shafts (21), and the two gears (22) are meshed with each other.

3. The device for treating soil heavy metal pollution according to claim 1, characterized in that: The rollers (10) are rotatably installed with threaded rods (30), and a plurality of screw nuts (31) are threadedly installed on the threaded rods (30). One end of the threaded rods (30) extends to the outside of the box body (1). The plug plate (12) is elastically connected to the moving plate (33) via a plurality of first springs (32), and the screw nuts (31) are hingedly connected to the moving plate (33) via a plurality of connecting rods (34).

4. The device for treating soil heavy metal pollution according to claim 3, characterized in that: The plug board (12) is divided into several sections, each section of the plug board (12) is provided with a slide groove (40), a slide rod (41) is slidably fitted in the slide groove (40), and the slide rod (41) is fixedly mounted on the corresponding moving plate (33), and each section of the plug board (12) is connected to the moving plate (33) via a first spring (32).

5. The device for treating soil heavy metal pollution according to claim 4, characterized in that: A hand wheel (50) is fixedly mounted on one end of the threaded rod (30) extending to the outside of the box body (1).

6. The device for treating heavy metal pollution in soil according to claim 1, characterized in that: A vertical cylinder (60) is provided below the box body (1), a shell (61) is fixedly mounted on the vertical cylinder (60), the shell (61) is fixedly connected to the box body (1) through a plurality of support rods, and the nozzle (4) is fixedly mounted in the vertical cylinder (60); the sieve plate comprises a first rotating ring (62), a filter mesh plate (63) is fixedly mounted on the first rotating ring (62); a second rotating ring (64) is rotatably mounted on the vertical cylinder (60) through a bearing, the second rotating ring (64) is elastically connected through a plurality of second springs (65), a soft cloth cylinder (66) is fixedly connected between the first rotating ring (62) and the second rotating ring (64), and a second driving mechanism for driving the second rotating ring (64) to rotate is provided on the vertical cylinder (60).

7. The device for treating heavy metal pollution in soil according to claim 6, characterized in that: A cross bar (70) is fixedly mounted on the first rotating ring (62).

8. The device for treating soil heavy metal pollution according to claim 6, characterized in that: The second driving mechanism comprises a bevel gear ring (80), the bevel gear ring (80) is fixedly mounted on the second rotating ring (64), one side of the bevel gear ring (80) is meshingly provided with a bevel gear (81), the bevel gear (81) is fixedly connected to the output shaft of the second motor (82), and the second motor (82) is fixedly mounted on the vertical cylinder (60).

9. The device for treating soil heavy metal pollution according to claim 8, characterized in that: A third rotating ring (90) is rotatably mounted in the vertical cylinder (60) via a bearing, a plurality of vertical plates (91) evenly distributed in a circumference are fixedly mounted in the third rotating ring (90), and the third rotating ring (90) is fixedly connected to the bevel gear ring (80) via a plurality of vertical rods (92).

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