A soil detection device for heavy metal pollution and a detection method thereof

Abstract

The application discloses a kind of heavy metal contaminated soil detection equipment and its detection method, it is related to soil detection technical field, including bottom plate, the bottom plate lower end is fixedly connected with underframe, and underframe lower end four corners are all fixedly connected with ground nail, the bottom plate is rotatably connected with rotating disc, the rotating disc both sides are all set up mounting hole, rotating disc side is equipped with the hole opening mechanism for opening soil hole, the other side of the rotating disc is equipped with the detection mechanism for detecting soil heavy metal.The hole opening mechanism of the present application can be set up soil hole of different depth when working, then the detection mechanism is used to detect soil of different depth, and then the determination of different depth levels of soil can be realized, so as to understand the pollution depth of soil, and the isolation assembly is set up to separate the lifting slide and soil, so as to avoid the adhesion of soil with high viscosity to the detection end of lifting slide, and affect the next detection.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, specifically to a soil testing device and method for heavy metal pollution. Background Technology

[0002] Heavy metals in soil refer to metals present in excessive amounts in the soil, such as iron, manganese, zinc, lead, mercury, nickel, and cobalt. Soil heavy metal pollution is caused by human activities leading to an increase in the content of trace metal elements in the soil, resulting in excessive deposition and a significant increase in heavy metal content above background levels, thus causing a deterioration in the quality of the ecological environment.

[0003] In the remediation of soil contaminated with heavy metals, it is necessary to test the contaminated soil first in order to facilitate targeted soil remediation. For the determination of heavy metals in soil, the existing public technology CN116466063B proposes a soil detector based on heavy metal pollution. This detector takes soil samples and uses a metal detector to test the soil, so as to realize the determination of heavy metals in the soil in the contaminated area.

[0004] However, the aforementioned detector still has certain shortcomings in practical applications. The instrument rolls the soil into the device for testing, which makes it impossible to test soil at different depths. Furthermore, for some soils with high moisture content and a certain degree of stickiness, the soil will adhere to the detection end of the instrument after testing, which will seriously affect subsequent testing. To address these issues, we provide a soil testing device and method for heavy metal pollution to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a soil testing device and method for heavy metal pollution, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A soil testing device for heavy metal pollution includes a base plate, a base frame fixedly connected to the lower end of the base plate, and ground nails fixedly connected to the four corners of the lower end of the base frame. A rotating disk is rotatably connected inside the base plate. Mounting holes are provided on both sides of the rotating disk. One side of the rotating disk is provided with an opening mechanism for opening soil holes, and the other side of the rotating disk is provided with a detection mechanism for detecting heavy metals in the soil. A rotating component for switching the positions of the two mounting holes is also provided on one side of the upper end of the base plate, and a locking component for locking the rotating disk is also provided on the other side of the upper end of the base plate. A housing is fixedly connected to the upper end of the base plate, and a control panel is provided on the upper end of the housing.

[0007] As a further aspect of the present invention: the hole-opening mechanism includes a fixed upright plate, which is fixedly connected to the upper end face of the rotating disk. Two T-shaped slide rails are fixedly connected to the side of the fixed upright plate near the mounting hole. A lifting seat is slidably connected between the two T-shaped slide rails. A second threaded rod is rotatably connected to the middle of the fixed upright plate by a support. The second threaded rod is threadedly connected to the lifting seat. A reduction motor is installed on the lifting seat. A spiral soil drill is installed at the output end of the reduction motor. The spiral soil drill is located at the center of the mounting hole on one side. A second motor is also installed at the upper end of the fixed upright plate. Pulleys are installed on the upper end of the second threaded rod and the output end of the second motor. A belt is installed between the two pulleys.

[0008] As a further embodiment of the present invention: the detection mechanism includes a sliding vertical rod, which is fixedly connected to the upper end face of the rotating disk. A lifting slider is slidably connected to the sliding vertical rod, and a lifting rod is fixedly connected to the lifting slider. A mounting base is fixedly connected to the lower end of the lifting rod. A soil fluorescence spectrometer is installed inside the mounting base. An isolation component is also provided at the bottom of the mounting base. An upper cover is provided at the lower end of the lifting rod, and a connecting thread is provided at the lower end of the lifting rod. The upper cover is threadedly connected to the connecting thread. A first motor is installed on one side of the upper end of the sliding vertical rod. A first threaded rod is installed at the output end of the first motor. The lower end of the first threaded rod is rotatably connected to the rotating disk, and the first threaded rod is threadedly connected to the lifting slider.

[0009] As a further embodiment of the present invention: the isolation assembly includes a mounting plate and an isolation membrane. The mounting plate is fixedly connected to one side of the upper end face of the mounting base box. Damping rings are provided on both sides of the mounting plate. A take-up roller and a release roller are respectively installed in the two damping rings. A winding motor for driving the take-up roller to rotate is also provided on one side of the mounting plate. A limiting stop ring is provided at the end of the take-up roller and the release roller near the mounting plate. A long-ear nut is provided at the end of the take-up roller away from the mounting plate. A clearance opening is provided on both sides of the mounting base box. Limiting rollers for limiting the isolation membrane are installed on both sides of the detection end of the soil fluorescence spectrometer.

[0010] As a further embodiment of the present invention: the rotating component includes a servo motor, the servo motor is mounted on one side of the upper surface of the base plate by a motor mount, a gear ring is fixedly connected to the edge of the rotating disk, and a motor gear is provided at the output end of the servo motor, the motor gear meshing with the gear ring.

[0011] As a further embodiment of the present invention: the locking component includes locking holes, which are opened on both sides of the toothed ring. The two locking holes are symmetrically arranged with the toothed ring as the center. An electric cylinder is installed on the other side of the upper surface of the base plate. The output end of the electric cylinder is provided with a pin that cooperates with the locking hole. The end of the pin is tapered.

[0012] As a further embodiment of the present invention: inspection ports are provided on both sides of the housing, and inspection doors are provided in the inspection ports, with door locks provided on the inspection doors.

[0013] As a further embodiment of the present invention: handles are provided on both sides of the upper end of the housing.

[0014] As a further aspect of the present invention, the upper surface of the upper cover is provided with a plurality of heat dissipation holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a hole-opening mechanism to create soil holes of different depths during operation, and then uses a detection mechanism to detect the soil at different depths. This allows for the determination of soil contamination depth at different depths. At the same time, the isolation component separates the lifting slider from the soil, preventing sticky soil from contaminating the detection end of the lifting slider and affecting the next detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the casing in this invention.

[0018] Figure 3 This is a schematic diagram of the opening mechanism in this invention.

[0019] Figure 4 This is a schematic diagram of the detection mechanism in this invention.

[0020] Figure 5 This is a schematic diagram of the structure when the upper cover is opened in this invention.

[0021] Figure 6 This is a schematic diagram of the isolation component in this invention.

[0022] Figure 7 This is a partial structural diagram of the isolation component in this invention.

[0023] Figure 8 This is a schematic diagram of the structure of the rotating component and the locking component in this invention.

[0024] The components include: 1. Housing; 2. Ground nail; 3. Handle; 4. Control panel; 5. Inspection door; 6. Locking assembly; 7. Rotating assembly; 8. Detection mechanism; 9. Opening mechanism; 10. Mounting hole; 11. Base frame; 12. Base plate; 13. Rotating disc; 61. Locking hole; 62. Bolt; 63. Electric cylinder; 71. Servo motor; 72. Motor gear; 73. Gear ring; 81. First threaded rod; 82. Sliding vertical rod; 83. First motor; 84. Lifting slider; 85. Lifting rod; 86. Mounting base box; 87. Soil fluorescence spectrometer; 88. Upper cover; 89. Connecting thread; 801. Film unloading roller; 802. Mounting plate; 803. Separating film; 804. Damping ring; 805. Limiting roller; 806. Circumferential opening; 807. Film take-up roller; 808. Long lug nut; 809. Rewinding motor; 91. Spiral soil drill; 92. Gear motor; 93. Second threaded rod; 94. Pulley; 95. Belt; 96. Second motor; 97. Lifting seat; 98. Fixed upright plate; 99. T-shaped slide rail. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-8 In this embodiment of the invention, a soil testing device for heavy metal pollution includes a base plate 12. A base frame 11 is fixedly connected to the lower end of the base plate 12, and ground nails 2 are fixedly connected to the four corners of the lower end of the base frame 11. A rotating disk 13 is rotatably connected inside the base plate 12. Mounting holes 10 are provided on both sides of the rotating disk 13. One side of the rotating disk 13 is provided with a hole-opening mechanism 9 for opening soil holes, and the other side of the rotating disk 13 is provided with a detection mechanism 8 for detecting heavy metals in the soil. A rotating assembly 7 for switching the positions of the two mounting holes 10 is also provided on one side of the upper end of the base plate 12. The other side of the upper end of the base plate 12 is also provided with a rotating assembly 7. A locking component 6 is also provided for locking the rotating disk 13. The upper end of the base plate 12 is fixedly connected to the housing 1, and the upper end of the housing 1 is provided with a control panel 4. During operation, the base frame 11 is placed at the position to be tested, and then the ground nail 2 is inserted into the soil for fixing. After fixing, the hole-opening mechanism 9 is activated to open a soil hole of the required depth on the ground. After the soil hole is opened, the rotating component 7 is activated to rotate the rotating disk 13 180 degrees, so that the positions of the two mounting holes 10 are interchanged. After the interchange is completed, the rotating disk 13 is locked by the locking component 6, and then the detection mechanism 8 is inserted into the soil hole to detect the heavy metal content in the soil.

[0027] The hole-opening mechanism 9 includes a fixed upright plate 98, which is fixedly connected to the upper surface of the rotating disk 13. Two T-shaped slide rails 99 are fixedly connected to the side of the fixed upright plate 98 near the mounting hole 10. A lifting seat 97 is slidably connected between the two T-shaped slide rails 99. A second threaded rod 93 is rotatably connected to the middle of the fixed upright plate 98 via a support. The second threaded rod 93 is threadedly connected to the lifting seat 97. A reduction motor 92 is mounted on the lifting seat 97, and a spiral soil drill 91 is mounted at the output end of the reduction motor 92. The spiral soil drill 91 is located at the center of one side of the mounting hole 10. At the fixed upright plate 98, a second motor 96 is also installed on the upper end. Pulleys 94 are installed on the upper end of the second threaded rod 93 and the output end of the second motor 96. A belt 95 is installed between the two pulleys 94. During operation, the reduction motor 92 drives the spiral soil drill 91 to rotate. Then, the second motor 96 drives the pulleys 94 and the belt 95 to operate. The operation of the pulleys 94 and the belt 95 can drive the second threaded rod 93 to rotate. The rotation of the second threaded rod 93 drives the lifting seat 97 to move. Then, the rotating spiral soil drill 91 is used to open soil holes of the appropriate depth on the ground as needed.

[0028] The detection mechanism 8 includes a sliding vertical rod 82, which is fixedly connected to the upper surface of the rotating disk 13. A lifting slider 84 is slidably connected to the sliding vertical rod 82, and a lifting rod 85 is fixedly connected to the lifting slider 84. A mounting base 86 is fixedly connected to the lower end of the lifting rod 85. A soil fluorescence spectrometer 87 is installed inside the mounting base 86. An isolation component is also provided at the bottom of the mounting base 86. An upper cover 88 is provided at the lower end of the lifting rod 85, and a connecting thread 89 is provided at the lower end of the lifting rod 85. The upper cover 88 is threadedly connected to the connecting thread 89. A first motor 83 is installed, and a first threaded rod 81 is installed at the output end of the first motor 83. The lower end of the first threaded rod 81 is rotatably connected to the rotating disk 13, and the first threaded rod 81 is threadedly connected to the lifting slider 84. Several heat dissipation holes are opened on the upper surface of the upper cover 88. During operation, the first motor 83 drives the first threaded rod 81 to rotate. The rotation of the first threaded rod 81 drives the lifting slider 84 to move downward. The downward movement of the lifting slider 84 can drive the lifting rod 85 to move downward. The movement of the lifting rod 85 can drive the mounting box 86 to be inserted into the soil hole, and then the soil is detected by the soil fluorescence spectrometer 87.

[0029] The isolation assembly includes a mounting plate 802 and an isolation membrane 803. The mounting plate 802 is fixedly connected to one side of the upper end face of the mounting base box 86. Damping rings 804 are provided on both sides of the mounting plate 802. A take-up roller 807 and a release roller 801 are respectively installed in the two damping rings 804. A winding motor 809 for driving the take-up roller 807 to rotate is also provided on one side of the mounting plate 802. A limiting stop ring is provided at the end of the take-up roller 807 and the release roller 801 near the mounting plate 802. A long-ear nut 808 is provided at the end of the take-up roller 807 away from the mounting plate 802. A clearance opening 806 is provided on both sides of the mounting base box 86. Limiting rollers 805 for limiting the isolation membrane 803 are installed on both sides of the detection end of the soil fluorescence spectrometer 87. The isolation membrane 803 separates the detection end of the soil fluorescence spectrometer 87 from the soil without affecting its normal detection, preventing soil from contaminating the detection end. After each test, the take-up roller 807 is driven by the take-up motor 809 to rotate, which in turn rolls up the isolation membrane 803, moving the soil-contaminated membrane 803 to the detection end of the soil fluorescence spectrometer 87. This avoids soil interference during continuous testing. The release roller 801 can be used to install new membrane rolls, and the take-up roller 807 can be used to install a roll for winding up the isolation membrane 803. The long lug nut 808 can be used to fix the roll.

[0030] The rotating assembly 7 includes a servo motor 71, which is mounted on one side of the upper surface of the base plate 12 using a motor mount. A gear ring 73 is fixedly connected to the edge of the rotating disk 13. The output end of the servo motor 71 is provided with a motor gear 72, which meshes with the gear ring 73. During operation, the servo motor 71 can drive the motor gear 72 to rotate, which in turn drives the gear ring 73 to rotate, and the rotation of the gear ring 73 can drive the rotating disk 13 to rotate 180 degrees, thereby enabling the interchange of the positions of the two mounting holes 10.

[0031] The locking assembly 6 includes locking holes 61, which are located on both sides of the toothed ring 73. The two locking holes 61 are symmetrically arranged with the toothed ring 73 as the center. An electric cylinder 63 is installed on the other side of the upper surface of the base plate 12. The output end of the electric cylinder 63 is provided with a pin 62 that cooperates with the locking holes 61. The end of the pin 62 is tapered. The pin 62 can be inserted into the locking holes 61 during operation to lock the rotating disk 13 and prevent the rotating disk 13 from rotating randomly.

[0032] The housing 1 has inspection ports on both sides, and each inspection port has an inspection door 5 with a door lock. The housing 1 has handles 3 on both sides of the upper end. The internal components of the housing 1 can be inspected through the inspection doors 5. When the film roll needs to be replaced, the inspection door 5 can be opened, the upper cover 88 can be rotated to separate the upper cover 88 from the mounting base box 86, and the long lug nut 808 can be removed to replace the film roll and the roll drum.

[0033] The working principle of this invention is as follows: During use, the base frame 11 is placed at the location to be inspected, and then the ground nail 2 is inserted into the soil for fixation. After fixation, the reduction motor 92 drives the spiral soil drill 91 to rotate. Then, the second motor 96 drives the pulley 94 and belt 95 to rotate. The rotation of the pulley 94 and belt 95 drives the second threaded rod 93 to rotate. The rotation of the second threaded rod 93 drives the lifting seat 97 to move. Then, the rotating spiral soil drill 91 is used to drill a soil hole of the required depth in the ground. The first motor 83 drives the first threaded rod 81 to rotate. The rotation of the first threaded rod 81 drives the lifting slider 84 to move downwards. The downward movement of the lifting slider 84 drives the lifting rod 85 to move downwards. The movement of the lifting rod 85 drives the installation of the lifting seat 97. The bottom box 86 is inserted into the soil hole, and then the soil is tested using the soil fluorescence spectrometer 87. The test results are displayed on the monitor on the control panel 4. At the same time, the isolation membrane 803 can separate the detection end of the soil fluorescence spectrometer 87 from the soil without affecting the normal detection of the soil fluorescence spectrometer 87, thus preventing soil from contaminating the detection end of the soil fluorescence spectrometer 87. After each test, the take-up roller 807 can be driven by the take-up motor 809 to rotate. The rotation of the take-up roller 807 can roll up the isolation membrane 803, moving the isolation membrane 803 contaminated with soil to the detection end of the soil fluorescence spectrometer 87, thereby avoiding the problem of soil affecting the test during continuous testing.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soil testing device for heavy metal pollution, comprising a base plate (12), wherein a base frame (11) is fixedly connected to the lower end of the base plate (12), and ground nails (2) are fixedly connected to the four corners of the lower end of the base frame (11), characterized in that: A rotating disk (13) is rotatably connected inside the base plate (12). Mounting holes (10) are provided on both sides of the rotating disk (13). A hole-opening mechanism (9) for opening soil holes is provided on one side of the rotating disk (13). A detection mechanism (8) for detecting heavy metals in the soil is provided on the other side of the rotating disk (13). A rotating component (7) for switching the positions of the two mounting holes (10) is also provided on one side of the upper end of the base plate (12). A locking component (6) for locking the rotating disk (13) is also provided on the other side of the upper end of the base plate (12). A housing (1) is fixedly connected to the upper end of the base plate (12). A control panel (4) is provided on the upper end of the housing (1).

2. The soil testing equipment for heavy metal pollution according to claim 1, characterized in that, The hole-opening mechanism (9) includes a fixed plate (98), which is fixedly connected to the upper surface of the rotating disk (13). Two T-shaped slide rails (99) are fixedly connected to the side of the fixed plate (98) near the mounting hole (10). A lifting seat (97) is slidably connected between the two T-shaped slide rails (99). A second threaded rod (93) is rotatably connected to the middle of the fixed plate (98) by a support. The second threaded rod (93) is threadedly connected to the lifting seat (97). A reduction motor (92) is installed on the lifting seat (97). A spiral soil drill (91) is installed at the output end of the reduction motor (92). The spiral soil drill (91) is located at the center of the mounting hole (10) on one side. A second motor (96) is also installed on the upper end of the fixed plate (98). Pulleys (94) are installed on the upper end of the second threaded rod (93) and the output end of the second motor (96). A belt (95) is installed between the two pulleys (94).

3. The soil testing equipment for heavy metal pollution according to claim 1, characterized in that, The detection mechanism (8) includes a sliding vertical rod (82), which is fixedly connected to the upper end of the rotating disk (13). A lifting slider (84) is slidably connected to the sliding vertical rod (82), and a lifting rod (85) is fixedly connected to the lifting slider (84). A mounting box (86) is fixedly connected to the lower end of the lifting rod (85). A soil fluorescence spectrometer (87) is installed inside the mounting box (86). An isolation component is also provided at the bottom of the mounting box (86). An upper cover (88) is provided at the lower end of the lifting rod (85). A connecting thread (89) is provided at the lower end of the lifting rod (85). The upper cover (88) is threadedly connected to the connecting thread (89). A first motor (83) is installed on one side of the upper end of the sliding vertical rod (82). A first threaded rod (81) is installed at the output end of the first motor (83). The lower end of the first threaded rod (81) is rotatably connected to the rotating disk (13). The first threaded rod (81) is threadedly connected to the lifting slider (84).

4. The soil testing equipment for heavy metal pollution according to claim 3, characterized in that, The isolation assembly includes a mounting plate (802) and an isolation membrane (803). The mounting plate (802) is fixedly connected to one side of the upper end face of the mounting base box (86). Damping rings (804) are provided on both sides of the mounting plate (802). A take-up roller (807) and a release roller (801) are respectively installed in the two damping rings (804). A winding motor (801) for driving the take-up roller (807) to rotate is also provided on one side of the mounting plate (802). 9) The film taking roller (807) and the film releasing roller (801) are both provided with a limiting ring at the end near the mounting plate (802). The film taking roller (807) is provided with a long ear nut (808) at the end away from the mounting plate (802). Both sides of the mounting base box (86) are provided with a clearance opening (806). Both sides of the detection end of the soil fluorescence spectrometer (87) are provided with limiting rollers (805) for limiting the isolation film (803).

5. The soil testing equipment for heavy metal pollution according to claim 1, characterized in that, The rotating assembly (7) includes a servo motor (71), which is mounted on one side of the upper surface of the base plate (12) using a motor mount. A gear ring (73) is fixedly connected to the edge of the rotating disk (13). The output end of the servo motor (71) is provided with a motor gear (72), which meshes with the gear ring (73).

6. A soil testing device for heavy metal pollution according to claim 5, characterized in that, The locking assembly (6) includes a locking hole (61), which is located on both sides of the toothed ring (73). The two locking holes (61) are symmetrically arranged with the toothed ring (73) as the center. An electric cylinder (63) is installed on the other side of the upper surface of the base plate (12). The output end of the electric cylinder (63) is provided with a pin (62) that cooperates with the locking hole (61). The end of the pin (62) is tapered.

7. The soil testing equipment for heavy metal pollution according to claim 1, characterized in that, The casing (1) has inspection ports on both sides, and each inspection port has an inspection door (5) with a door lock on it.

8. A soil testing device for heavy metal pollution according to claim 1, characterized in that, The upper end of the housing (1) is provided with handles (3) on both sides.

9. A soil testing device for heavy metal pollution according to claim 3, characterized in that, The upper surface of the upper cover (88) has several heat dissipation holes.

10. A detection method for a soil testing device for heavy metal pollution according to any one of claims 1-9, characterized in that, Includes the following steps; Step 1: When using the equipment, place the base frame (11) at the location to be tested, and then insert the ground nail (2) into the soil for fixing. After fixing, the deceleration motor (92) drives the spiral soil drill (91) to rotate. Then the second motor (96) drives the pulley (94) and belt (95) to run. The rotation of the pulley (94) and belt (95) can drive the second threaded rod (93) to rotate. The rotation of the second threaded rod (93) drives the lifting seat (97) to move. Then, the rotating spiral soil drill (91) is used to open a soil hole of the appropriate depth on the ground as needed. Step 2: The first motor (83) drives the first threaded rod (81) to rotate. The rotation of the first threaded rod (81) causes the lifting slider (84) to move downward. The downward movement of the lifting slider (84) can cause the lifting rod (85) to move downward. The movement of the lifting rod (85) can cause the mounting box (86) to be inserted into the soil hole. Then, the soil is tested using a soil fluorescence spectrometer (87), and the test results are displayed on the monitor on the control panel (4). Step 3: Simultaneously, the isolation membrane (803) can separate the detection end of the soil fluorescence spectrometer (87) from the soil without affecting the normal detection of the soil fluorescence spectrometer (87), thus preventing soil from contaminating the detection end of the soil fluorescence spectrometer (87). After each detection is completed, the take-up roller (807) can be driven to rotate by the take-up motor (809). The rotation of the take-up roller (807) can roll up the isolation membrane (803), moving the isolation membrane (803) contaminated with soil, so that the clean isolation membrane (803) can be moved to the detection end of the soil fluorescence spectrometer (87), thereby avoiding the problem of soil affecting the detection when performing continuous detection work.

Images