Impurity screening device for contaminated soil remediation

Abstract

An impurity screening device for contaminated soil remediation comprises a treatment box used for feeding soil, and a feeding pipe is arranged on the treatment box; the screening device is arranged in the treatment box, and a plurality of screening holes are formed in the screening device; the control frame is fixedly connected to the upper part of the sifter; the sealing mechanism is slidably connected to the top of the screening device; the dispenser is arranged on the control frame; the rotating mechanism drives the control frame and the screener to rotate; and the separation box is arranged at the lower part of the treatment box. When screening work is carried out, the rotating motor is started, the screening device starts to rotate, the effect of shaking soil to be screened is achieved, after the screening device shakes, soil and stones slide in the screening device, the soil and the stones move, soil in cracks of the stones conveniently moves towards screening holes, then the soil is rapidly separated from the screening holes under the action of the vibration motor, and the screening effect is improved. Part of the soil blocks are decomposed into soil particles under the action of vibration and shaking, and the soil particles are separated into the treatment box from the sieve holes.

Description

Technical Field

[0001] This utility model relates to the field of soil screening technology, and more specifically, to an impurity screening device for remediation of contaminated soil. Background Technology

[0002] When remediating contaminated soil, it is necessary to use a screening device to remove large particles such as stones and clumps from the soil to prevent stones from adversely affecting the soil remediation process and its effectiveness. For example, in phytoremediation, stones can hinder plant growth and nutrient absorption.

[0003] Existing impurity screening devices only use vibration to screen impurities. When there are too many stones, the soil at the top will fall slowly, affecting the screening speed. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this invention aims to provide an impurity screening device for contaminated soil remediation, which can improve the screening speed of stones and soil.

[0005] An impurity screening device for contaminated soil remediation includes: a treatment box for discharging soil, the treatment box having a feeding pipe; a sieve inside the treatment box, the sieve having a plurality of sieve holes; a control frame fixed to the upper part of the sieve; a closing mechanism slidably connected to the top of the sieve; a feeder on the control frame; a rotating mechanism for driving the control frame and the sieve to rotate; and a separation box located at the lower part of the treatment box.

[0006] Furthermore, the bottom surface of the sieve is an arc-shaped surface, the lower part of the sieve is provided with the sieve holes, and the top of the sieve is a rectangular opening.

[0007] Furthermore, the top of the control frame is higher than the top of the screener, and an extension rod is provided on one side of the control frame.

[0008] Furthermore, the closing mechanism includes an electric telescopic rod and a closing disc. The fixed end of the electric telescopic rod is fixed to the top of the control frame, and the closing disc is fixed to the telescopic end of the electric telescopic rod. The closing disc is slidably connected to the screener.

[0009] Furthermore, the top of the feeder is provided with a feeding port, which is located below the bottom of the feeding tube. The bottom of the feeder is connected to the top of the screener, and the bottom of the feeder is higher than the lowest point of the closed disc.

[0010] Furthermore, a vibration motor is provided on the side wall of the sieve.

[0011] Furthermore, the rotating mechanism includes a rotating motor and a stabilizing shaft. The output end of the rotating motor is fixed to the extension rod, and the fixed end of the rotating motor is fixed to the processing box. One end of the stabilizing shaft is rotatably connected to the dispenser, and the other end of the stabilizing shaft is rotatably connected to the processing box. The rotating motor and the stabilizing shaft are on the same straight line.

[0012] Furthermore, the lower part of the processing box is provided with a grid, and the lower part of the grid is provided with a collection channel.

[0013] Furthermore, the separation box includes a sliding box and a transport box. The transport box has two holding cavities. The opening of the holding cavity is the same size as the bottom of the processing box. The transport box is detachably connected to the holding cavity.

[0014] Furthermore, the sliding box is provided with upwardly protruding limit plates on both sides.

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

[0016] ① When performing the screening work, start the rotating motor to make the screen start to rotate, so that the soil to be screened is shaken. After the screen shakes, the soil and stones slide in the screen and move, which makes it easier for the soil in the gaps between the stones to move into the screen holes. Combined with the action of the vibrating motor, the soil is quickly separated from the screen holes. Some soil clods are broken down into soil particles under the action of vibration and shaking and are separated from the screen holes into the processing box. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of an impurity screening device used for contaminated soil remediation.

[0019] Figure 2 This is a schematic diagram of the internal structure of an impurity screening device used for contaminated soil remediation.

[0020] Figure 3 This is a schematic diagram of a screening device, control frame, and sealing mechanism used in a contaminated soil remediation device for removing impurities.

[0021] Figure 4 This is a schematic diagram of a separation chamber in an impurity screening device used for contaminated soil remediation.

[0022] In the diagram: 1. Processing box; 11. Feeding pipe; 12. Grating; 13. Collection channel; 2. Screener; 21. Screen hole; 22. Vibrating motor; 3. Control frame; 31. Extension rod; 4. Closing mechanism; 41. Electric telescopic rod; 42. Closing disc; 5. Feeder; 6. Rotating mechanism; 61. Rotating motor; 62. Stabilizing shaft; 7. Separation box; 71. Sliding box; 711. Container cavity; 712. Limiting plate; 72. Transport box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 , Figure 2 As shown, an impurity screening device for contaminated soil remediation includes: a treatment box 1 for feeding soil, with a feeding pipe 11 on the treatment box 1; a screen 2 disposed inside the treatment box 1, with a plurality of screen holes 21 on the screen 2; a control frame 3 fixed to the upper part of the screen 2; a closing mechanism 4 slidably connected to the top of the screen 2; a feeder 5 disposed on the control frame 3; a rotating mechanism 6 for driving the control frame 3 and the screen 2 to rotate; and a separation box 7 disposed at the lower part of the treatment box 1.

[0025] The top of the treatment box 1 is a closed surface, and the feeding pipe 11 runs through the side wall of the treatment box 1. When it is necessary to screen out impurities, the original mixed soil is fed from the outside of the feeding pipe 11, so that the mixed soil enters the interior of the treatment box 1 through the feeding pipe 11. The space of the treatment box 1 is sufficient for the screener 2 to rotate within it.

[0026] like Figure 3 As shown, the bottom surface of the sieve 2 is an arc-shaped surface, which facilitates the sliding of soil in the sieve 2 and improves the sieve efficiency. The lower part of the sieve 2 is provided with sieve holes 21. The diameter of the sieve holes 21 is smaller than the stone impurities to be separated. Normal soil can flow out through the sieve holes 21. The top of the sieve 2 is a rectangular opening. There are no sieve holes 21 in the rectangular part of the sieve 2.

[0027] The top of the control frame 3 is higher than the top of the screener 2. The bottom of the control frame 3 is fixed to both sides of the top of the screener 2. The control frame 3 moves together with the screener 2. An extension rod 31 is provided on one side of the control frame 3. The extension rod 31 does not contact the screener 2.

[0028] The closing mechanism 4 includes an electric telescopic rod 41 and a closing disc 42. The fixed end of the electric telescopic rod 41 is fixed to the top of the control frame 3. The top of the fixed end of the electric telescopic rod 41 is located above the control frame 3. The closing disc 42 is fixed to the telescopic end of the electric telescopic rod 41. The closing disc 42 is slidably connected to the screener 2. After the electric telescopic rod 41 is fully retracted, it drives the closing disc 42 to fit against the top of the control frame 3.

[0029] The feeder 5 has a feeding port at its top, located below the bottom of the feeding pipe 11. Soil from the feeding pipe 11 enters the feeding port. The bottom of the feeder 5 is connected to the top of the screener 2, and the bottom of the feeder 5 is higher than the lowest point of the closed disc 42 after the electric telescopic rod 41 is extended. When the electric telescopic rod 41 is in its longest state, the closed disc 42 is located above the screen hole 21 and below the feeder 5. At this time, the soil in the screener 2 will not leak out from the top, and the soil in the feeder 5 will not enter the screener 2. During feeding, the closed disc 42 is moved up to the top of the bottom of the feeder 5, allowing the soil in the feeder 5 to slide directly into the screener 2, completing the feeding operation. After the soil is screened out, the closed disc 42 is raised to contact the control frame 3. At this time, the closed disc 42 is not in contact with the screener 2, allowing the stones in the screener 2 to be quickly poured out when the screener 2 is tilted.

[0030] The side wall of the screener 2 is equipped with a vibration motor 22. When screening, the vibration motor 22 is started to drive the soil and stone materials in the screener 2 to shake, so that the normal soil and stones are quickly separated, thereby improving the screening efficiency.

[0031] The rotating mechanism 6 drives the screen 2 to rotate. The rotating mechanism 6 includes a rotating motor 61 and a stabilizing shaft 62. The output end of the rotating motor 61 is fixed to the extension rod 31, and the fixed end of the rotating motor 61 is fixed to the processing box 1. The rotating motor 61 is a stepper motor, which facilitates control of the rotation speed and angle. One end of the stabilizing shaft 62 is rotatably connected to the feeder 5, and the other end is rotatably connected to the processing box 1. The rotating motor 61 and the stabilizing shaft 62 are on the same straight line. During screening, the rotating motor 61 is started, causing the screen 2 to rotate, achieving the effect of shaking the soil to be screened. After the screen 2 shakes, the soil and stones slide within the screen 2, moving and facilitating the movement of soil from the gaps between the stones towards the screen holes 21. Combined with the action of the vibrating motor 22, the soil quickly separates from the screen holes 21. Some soil clods decompose into soil particles under the action of vibration and shaking, separating from the screen holes 21 and falling into the processing box 1.

[0032] During the rotation of the sorting screen, the feeder 5 and the feeding pipe 11 are on different planes, and the feeder and the feeding pipe 11 do not conflict.

[0033] The lower part of the processing box 1 is equipped with a grid 12, through which stones and soil can pass. The lower part of the grid 12 is equipped with a collection channel 13, through which the screened soil and stones pass through the grid 12 and enter the collection channel 13.

[0034] like Figure 4 As shown, the separation box 7 slides in the collection channel 13. The separation box 7 receives soil and stones entering the collection channel 13. The separation box 7 includes a sliding box 71 and a transport box 72. The transport box 72 is provided with two holding chambers 711. The opening of the holding chamber 711 is the same size as the bottom of the processing box 1. During collection, one holding chamber 711 is used to collect the sieved soil. After the soil is sieved, the sliding box 71 is pushed so that the other holding chamber 711 is positioned below the grid 12. The other holding chamber 711 collects the sieved stones and impurities. The transport box 72 is detachably connected to the holding chamber 711. All impurities and soil fall into the transport box 72 for easy transfer. When collecting in the holding chamber 711, the transport box 72 is placed in the holding chamber 711. The transport box 72 is provided with a handle for easy picking and putting.

[0035] The sliding box 71 has upward protruding limit plates 712 on both sides. The limit plates 712 are connected to the processing box 1 by magnetic attraction. When the limit plates 712 are attached to the processing box 1, a holding cavity 711 is just below the grid 12.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An impurity removal device for contaminated soil remediation, characterized by, Include: The processing box (1) for putting soil, the feeding pipe (11) is opened on the processing box (1); Screening device (2) provided in the processing box (1), a plurality of screen holes (21) are provided on the screening device (2); The control frame (3) is fixed to the upper part of the screening device (2); The closing mechanism (4) is slidingly connected to the top of the screening device (2); The delivery device (5) is provided on the control frame (3); The rotating mechanism (6) drives the control frame (3) and the screening device (2) to rotate; And The separation box (7) is provided in the lower part of the processing box (1).

2. The apparatus for removing contaminants from contaminated soil according to claim 1, wherein: The bottom surface of the screening device (2) is arc-shaped, the lower part of the screening device (2) is provided with the screen hole (21), and the top of the screening device (2) is rectangular opening.

3. The apparatus for removing contaminants from contaminated soil according to claim 2, wherein: The top of the control frame (3) is higher than the top of the screening device (2), and the control frame (3) is provided with an extension rod (31) on one side.

4. The apparatus for removing contaminants from contaminated soil according to claim 3, wherein: The closing mechanism (4) includes an electric telescopic rod (41) and a closing disc (42), the fixed end of the electric telescopic rod (41) is fixed to the top of the control frame (3), the closing disc (42) is fixed to the telescopic end of the electric telescopic rod (41), and the closing disc (42) is slidingly connected to the screening device (2).

5. A device for removing contaminants from contaminated soil according to claim 4, wherein: The top of the delivery device (5) is provided with a delivery port, the delivery port is arranged below the bottom of the feeding pipe (11), the bottom of the delivery device (5) is communicated with the top of the screening device (2), and the bottom of the delivery device (5) is higher than the lowest point of the closing disc (42).

6. A device for removing contaminants from contaminated soil according to claim 5, wherein: The side wall of the screening device (2) is provided with a vibration motor (22).

7. A device for removing contaminants from contaminated soil according to claim 6, wherein: The rotating mechanism (6) includes a rotating motor (61) and a stabilizing shaft (62), the output end of the rotating motor (61) is fixed to the extension rod (31), the fixed end of the rotating motor (61) is fixed to the processing box (1), one end of the stabilizing shaft (62) is rotatably connected to the delivery device (5), the other end of the stabilizing shaft (62) is rotatably connected to the processing box (1), and the rotating motor (61) and the stabilizing shaft (62) are arranged on the same straight line.

8. The apparatus for removing contaminants from contaminated soil according to claim 7, wherein: The lower part of the processing box (1) is provided with a grid (12), and the lower part of the grid (12) is provided with a collection channel (13).

9. A device for removing contaminants from contaminated soil according to claim 8, wherein: The separation box (7) includes a sliding box (71) and a transport box (72), two containing cavities (711) are arranged in the transport box (72), the opening of the containing cavity (711) is the same size as the bottom of the processing box (1), and the transport box (72) is detachably connected to the containing cavity (711).

10. The apparatus for removing contaminants from contaminated soil according to claim 9, wherein: The two sides of the sliding box (71) are provided with limit plates (712) protruding upward.

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