Screening device for soil remediation

Abstract

The utility model discloses a screening device for soil remediation, and belongs to the field of screening devices. The device comprises a fixing device, a screening device and a conveying device. The fixing device comprises a mounting frame; the conveying device comprises a conveying belt and a power motor; the screening device comprises a screen, a comb plate, a mounting block and an impact plate; the power motor is installed on the installation frame and connected with the lower area of the conveying belt, and the conveying belt is fixed to the installation frame. A mounting block is arranged below the upper area of the conveying belt, an impact plate is arranged above the mounting block, a comb plate is arranged at the front end of the mounting block, and the mounting block is mounted on a mounting frame; the screen is arranged in a lower area of the mounting block, and one end of the screen is connected with a driven wheel arranged in a lower area of the conveying belt; the screen is slidably mounted on the mounting frame. According to the device, it is ensured that soil attached to the stones and soil coagulated into blocks can fall off or be broken after being impacted, so that the situation that the soil is discharged along with the large stones is avoided, and waste of the soil is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the screening device field, concretely relates to a screening device for soil remediation. BACKGROUND

[0002] Soil remediation refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform pollutants in soil, so that their concentration is reduced to an acceptable level, or the toxic and harmful pollutants are converted into harmless substances. In essence, the technical principles of contaminated soil remediation can include: (1) changing the form of pollutants in the soil or the way of binding with the soil, reducing its mobility and bioavailability in the environment; (2) reducing the concentration of harmful substances in the soil.

[0003] At present, there is a lack of corresponding technical means for soil remediation in the field of mining, and the progress of soil remediation in the field of mining is slow. The surface layer of mine soil mainly contains a large number of stones of different specifications, making it difficult to apply to agriculture. Therefore, how to efficiently screen out stones in mine soil and achieve soil remediation has become a problem to be solved by those skilled in the art.

[0004] In the prior art, patent No. CN215235702U provides a screening device for soil remediation, relating to the field of soil remediation, which comprises a rack, a screen cylinder mechanism and a crushing mechanism. The screen cylinder mechanism comprises a first motor, a cylindrical rotating drum and a screen mesh sleeved outside the cylindrical rotating drum. The first motor drives the cylindrical rotating drum to rotate, while the second motor drives the stirring shaft to rotate. The stirring shaft rotates relative to the cylindrical rotating drum, so that the soil to be screened continuously rotates in the screen mesh from the feed inlet. The soil with a particle diameter smaller than the screen mesh aperture falls out of the screen mesh, while the large-diameter stones continuously slide to the right side until they slide out of the screening device from the cylindrical rotating drum, thereby efficiently screening out stones in mine soil and achieving soil remediation.

[0005] The prior art adopts a roller screening method to screen soil, but the soil usually contains stones, and a large amount of soil is adhered to the stones. A part of the soil is also condensed into soil clumps. The prior art is difficult to handle this situation, thereby causing a part of the soil to be discharged with the stones and soil clumps, resulting in soil waste. Utility model content

[0006] In view of the problem in the prior art that in the screening process, due to the rough surface of the stone, a large amount of soil particles are often adhered, causing the soil to be discharged together with the stone from the screening device, thereby causing waste of soil resources, the utility model provides a screening device for soil remediation, which is provided with an impact plate and a comb plate in the device, so that the soil adhered to the stone and the soil coagulated into blocks can be detached or broken after impact, thereby avoiding the soil from being discharged together with the large stone and reducing the waste of soil.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0008] The utility model provides a screening device for soil remediation, including fixed device, screening device and conveying device, fixed device includes mounting bracket, conveying device includes conveyer belt and power motor, screening device includes screen cloth, comb plate, mounting block and impact plate, power motor installs on mounting bracket, power motor is connected with the lower area of conveyer belt, and conveyer belt is fixed on mounting bracket, the lower area of convey belt is provided with mounting block, and the upper portion of mounting block is provided with impact plate, and the front end of mounting block is provided with comb plate, and mounting block is installed on mounting bracket, screen cloth is set up in the lower area of mounting block, and one end of screen cloth is connected with the passive wheel of conveyer belt lower area setting, screen cloth is slidably installed on mounting bracket, the lower area of screen cloth is provided with guide chute.

[0009] Optionally, the lower area of the conveyer belt is provided with a first driving roller; the driving wheel of the power motor drives the passive wheel through a transmission chain; and the passive wheel is installed on the first driving roller.

[0010] Optionally, one end of the first driving roller passes through the passive wheel and is connected with a first crank arm; one end of the first crank arm is connected with a first connecting rod; and the other end of the first connecting rod is connected with the screen cloth.

[0011] Optionally, the other end of the first driving roller is connected with a second crank arm; one end of the second crank arm is connected with a second connecting rod; and the other end of the second connecting rod is connected with the screen cloth.

[0012] Optionally, one side of the conveyer belt is provided with a first conveying baffle; the other side of the conveyer belt is provided with a second conveying baffle; and the first conveying baffle and the second conveying baffle are installed on the mounting bracket.

[0013] Optionally, one side of the mounting block is provided with a first mounting baffle; the other side of the mounting block is provided with a second mounting baffle; and the first mounting baffle and the second mounting baffle are installed on the mounting bracket.

[0014] Optionally, one side of the screen is provided with a first baffle; the other side of the screen is provided with a second baffle; the first baffle is movably provided with a first guide block, and the second baffle is movably provided with a second guide block; the first guide block and the second guide block are installed on the mounting frame.

[0015] Optionally, the conveying belt is inclined in the same direction as the material guide groove.

[0016] Optionally, the conveying belt is inclined in the opposite direction of the screen.

[0017] Optionally, the comb plate is an arc-shaped comb plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The screening device for soil remediation greatly improves the utilization efficiency of soil resources and reduces unnecessary waste. Specifically, the device constructs a screening system through the integration of a fixing device, a screening device and a conveying device. The fixing device serves as the basic support of the entire screening device and ensures the stable installation and operation of all components. The device adopts a durable mounting rack, which not only provides a reliable support platform for key components such as a power motor and a conveying belt, but also facilitates the adjustment of the device layout according to actual needs, thereby enhancing the adaptability and flexibility of the device. The power motor serves as the driving core and controls the movement of the conveying belt accurately, thereby realizing the continuous and stable conveying of materials and ensuring the efficient performance of the screening operation while effectively reducing the secondary mixing of soil caused by the bumping in the conveying process, thereby laying a good foundation for subsequent screening work. The screen in the screening device is a key component for directly contacting and separating soil and stones, and its design fully considers the size of soil particles, the shape and surface characteristics of stones. Through reasonable aperture selection and material selection, accurate screening of soil with different particle sizes is realized. More importantly, the guide chute arranged below the screen effectively guides the flow direction of the screened soil to the designated collection area, thereby avoiding the loss of soil resources. The impact plate and the comb plate arranged above the screen completely overturn the difficulty of removing the soil on the surface of stones in the traditional screening method. The impact plate moderately impacts the stones by using the kinetic energy in the material conveying process, and this physical force loosens and even removes the soil particles adhering to the surface of the stones, thereby greatly improving the soil separation efficiency. The design of the comb plate further plays the functions of combing and crushing. The fine tooth structure of the comb plate can penetrate into the gaps of the stones and effectively crush the soil agglomerated into blocks. Meanwhile, with the movement of the stones, the continuous combing action of the comb plate ensures that even the most stubborn soil residues can be completely removed, thereby completely avoiding the phenomenon that soil is mistakenly discharged with stones and significantly reducing the waste of soil resources. Therefore, the screening device for soil remediation can effectively solve the problem of soil adhesion on the surface of stones, significantly improve the recycling rate of soil resources and reduce resource waste.

[0020] Further, the screen is slidingly installed on the mounting rack, which not only facilitates the adjustment of the inclination angle of the screen according to the characteristics of the screened materials and optimizes the screening efficiency, but also facilitates the maintenance and replacement in the later stage and prolongs the service life of the device. During the entire screening process, the components such as the power motor, the conveying belt, the screen, the impact plate and the comb plate work cooperatively to form a closed-loop and efficient screening system, which ensures the screening accuracy and greatly improves the work efficiency while reducing energy consumption and cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present utility model disclosure in any way. In the drawings:

[0022] Figure 1 It is the overall structure schematic view of the screening device for soil remediation of the utility model;

[0023] Figure 2 It is the elevation angle device view of the screening device for soil remediation of the utility model;

[0024] Figure 3 It is the shaft side view of the screening device for soil remediation of the utility model.

[0025] In the figure, 1 is a conveying belt;21 is a first connecting rod;22 is a second connecting rod;31 is a first crank;32 is a second crank;4 is a passive wheel;5 is a transmission chain;6 is a driving wheel;7 is a power motor;8 is a mounting frame;9 is a first guide block;10 is a material guide groove;11 is a screen;111 is a first baffle;112 is a second baffle;12 is a comb plate;13 is a mounting block;131 is a first mounting baffle;132 is a second mounting baffle;14 is a impact plate;151 is a first conveying baffle;152 is a second conveying baffle;16 is a bottom plate;171 is a first driving roller;172 is a second driving roller. DETAILED DESCRIPTION

[0026] In order to make the person skilled in the art better understand the technical scheme in the utility model, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this document, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0028] In view of the problem that in the prior art, in the screening process, due to the rough surface of the stone, a large amount of soil particles are often adhered, causing the soil to be discharged from the screening device along with the stone, thereby causing waste of soil resources, the utility model provides a screening device for soil remediation, as shown in Figure 1 The screening device for soil remediation comprises a fixing device, a screening device and a conveying device.

[0029] The screening device and conveying device are installed on a fixed device. The conveying device is used to transport the raw materials to the screening device, and the screening device screens the raw materials.

[0030] The fixing device includes a mounting bracket 8.

[0031] The conveying device includes a conveyor belt 1, a driven wheel 4, a transmission chain 5, a driving wheel 6, and a power motor 7.

[0032] The screening device includes a mounting block 13, an impact plate 14, a comb plate 12, and a screen 11.

[0033] The power motor 7 is mounted on the mounting frame 8. The power motor 7 is equipped with a drive wheel 6. The drive wheel 6 and the driven wheel 4 are connected by a transmission chain 5. The driven wheel 4 is located in the lower area of ​​the conveyor belt 1 and is connected to the first drive roller 171 in the conveyor belt 1. The upper area of ​​the conveyor belt 1 is equipped with a second drive roller 172. The conveyor belt 1 is inclined at a certain angle. A first conveyor baffle 151 is provided on one side of the conveyor belt 1, and a second conveyor baffle 152 is provided on the other side of the conveyor belt 1. The first conveyor baffle 151 and the second conveyor baffle 152 are fixedly connected to the mounting frame 8.

[0034] Impact plate 14 is located below the top of conveyor belt 1, and is mounted above mounting block 13. Mounting block 13 can be tilted at a certain angle, and the tilting direction of mounting block 13 is opposite to the tilting direction of conveyor belt 1. A comb plate 12 is provided at the lower tilting end of mounting block 13. A first mounting baffle 131 is provided on one side of mounting block 13, and a second mounting baffle 132 is provided on the other side of mounting block 13. The first mounting baffle 131 and the second mounting baffle 132 are fixedly mounted on mounting frame 8.

[0035] A screen 11 is provided below the mounting block 13. The inclined direction of the screen 11 is consistent with that of the mounting plate. A first baffle 111 is provided on one side of the screen 11, and a second baffle 112 is provided on the other side of the screen 11. A first guide rail is provided on the side of the first baffle 111, and a first guide block 9 is provided on the first guide rail. A second guide rail is provided on the side of the second baffle 112, and a second guide block is provided on the second guide rail. The first guide block 9 and the second guide block are fixed on the mounting frame 8.

[0036] The comb plate 12 is an arc-shaped comb plate.

[0037] like Figure 2 As shown, a first crank arm 31 is located on the outer side of the driven wheel 4, and a second crank arm 32 is located on the outer side below the second conveying baffle 152. The first crank arm 31 and the second crank arm 32 are located at the same horizontal position. The first crank arm 31 is connected to the first guide block 9 by a first connecting rod 21, and the second crank arm 32 is connected to the second guide block by a second connecting rod 22.

[0038] As Figure 3 shown, the lower part of the screen 11 is provided with a guide chute 10, the two sides of the guide chute 10 are installed on the mounting frame 8, and the inclined direction of the guide chute 10 is opposite to the inclined direction of the screen 11. The bottom of the mounting frame 8 is fixed on the bottom plate 16.

[0039] The upper part of the mounting frame 8 is installed with a conveying belt 1, the lower part of the conveying belt 1 is provided with a first driving roller 171, the first driving roller 171 is connected with a driven wheel 4, the driven wheel 4 is connected with a transmission chain 5, the transmission chain 5 is also connected with a driving wheel 6, the driving wheel 6 is connected with a power motor 7, the shell of the power motor 7 is fixedly installed in the middle-lower part of the mounting frame 8, guide blocks are installed in the middle part of the mounting frame 8, the screen 11 is slidingly installed between the guide blocks, one end of the screen 11 is connected with a connecting rod, the connecting rod is rotationally connected with a crank arm, the crank arm is coaxially connected with the driven wheel 4, a mounting block 13 is installed between the upper part of the screen 11 and the upper outlet of the conveying belt 1, a impact plate 14 is movably embedded and installed on the mounting block 13, baffle plates are arranged on the two sides of the mounting block 13, a comb plate 12 is installed on the lower part of the mounting block 13, and the comb plate 12 is an arc-shaped comb plate.

[0040] When working, the power motor 7 works to drive the driving wheel 6 to rotate, the driving wheel 6 rotates to drive the transmission chain 5 to rotate, the transmission chain 5 rotates to drive the driven wheel 4 to rotate, the driven wheel 4 rotates to drive the conveying belt 1 to move, the conveying belt 1 moves to upwardly convey the raw materials, the raw materials fall under the action of gravity after rising to the top, and then the raw materials collide with the impact plate 14, the soil adhered to the stones in the raw materials falls off after being impacted, the caked soil is broken due to the impact, and then the large stones roll outwards through the arc surface of the comb plate 12 after passing through the comb plate 12, and the large stones form a parabolic trajectory. The small stones fall through the comb structure of the comb plate 12, and the soil also falls through the gaps of the comb plate 12, which avoids the damage of the screen 11 caused by the direct impact of the large stones on the screen 11. While the driven wheel 4 rotates, the crank arm rotates to drive the connecting rod to move, the connecting rod moves to drive the screen 11 to reciprocatingly slide between the guide blocks, and then the soil and small stones fall on the screen 11 to be screened in cooperation with the reciprocating movement of the screen 11, the screened soil falls into the guide chute 10 to be discharged, and the stones are discharged through the screen 11.

[0041] In summary, the utility model discloses a power motor drives transmission chain movement, so that the conveying belt can continuously transmit raw materials upward, and falls and collides with the impact plate at the vertex, which effectively makes the adhering soil on the stone fall off and breaks the agglomerated soil, improving the effectiveness of subsequent screening.

[0042] Many embodiments and many applications other than those described herein will be apparent from consideration of the foregoing description and practice of the teachings of the present disclosure. Thus, the scope of the present teachings should not be limited to the specific embodiments described herein, but should be given the broadest interpretation of the appended claims and their equivalents, as well as all further embodiments and applications coming within the scope of equivalents. All articles and references including patent applications and publications are herein incorporated by reference for the articles or documents as specifically referenced. To the extent that any meaning or definition of a term in this document conflicts with that of a term of the same name used in other documents, including any patent, the meaning or definition assigned to the term in this document should be adopted.

[0043] The above is a further detailed description of the utility model, and the specific embodiments of the utility model cannot be limited to this. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as falling within the scope of protection determined by the claims submitted.

Claims

1. A screening device for soil remediation, characterized in that, The fixed device, the screening device and the conveying device are included. The fixed device includes a mounting frame (8). The conveying device includes a conveying belt (1) and a power motor (7). The screening device includes a screen (11), a comb plate (12), a mounting block (13) and a striking plate (14). The power motor (7) is installed on the mounting frame (8), the power motor (7) is connected with the lower area of the conveying belt (1), and the conveying belt (1) is fixed on the mounting frame (8). The lower area of the upper area of the conveying belt (1) is provided with the mounting block (13), the upper area of the mounting block (13) is provided with the striking plate (14), the front end of the mounting block (13) is provided with the comb plate (12), and the mounting block (13) is installed on the mounting frame (8). The screen (11) is arranged in the lower area of the mounting block (13), one end of the screen (11) is connected with the driven wheel (4) arranged in the lower area of the conveying belt (1), and the screen (11) is slidably installed on the mounting frame (8). The lower area of the screen (11) is provided with a material guide groove (10).

2. The screening device for soil remediation of claim 1, wherein, The lower area of the conveying belt (1) is provided with a first driving roller (171). The driving wheel (6) of the power motor (7) drives the driven wheel (4) through a transmission chain (5). The driven wheel (4) is installed on the first driving roller (171).

3. A screening apparatus for soil remediation according to claim 2, wherein One end of the first driving roller (171) passes through the driven wheel (4) and is connected with a first crank arm (31). The first crank arm (31) is connected with one end of a first connecting rod (21), and the other end of the first connecting rod (21) is connected with the screen (11).

4. The screening device for soil remediation of claim 2, wherein, The other end of the first driving roller (171) is connected with a second crank arm (32). The second crank arm (32) is connected with one end of a second connecting rod (22), and the other end of the second connecting rod (22) is connected with the screen (11).

5. The screening device for soil remediation of claim 1, wherein, One side of the conveying belt (1) is provided with a first conveying baffle (151). The other side of the conveying belt (1) is provided with a second conveying baffle (152). The first conveying baffle (151) and the second conveying baffle (152) are installed on the mounting frame (8).

6. The screening device for soil remediation of claim 1, wherein, One side of the mounting block (13) is provided with a first mounting baffle (131). The other side of the mounting block (13) is provided with a second mounting baffle (132). The first mounting baffle (131) and the second mounting baffle (132) are installed on the mounting frame (8).

7. The screening apparatus for soil remediation of claim 1, wherein One side of the screen (11) is provided with a first baffle (111). The other side of the screen (11) is provided with a second baffle (112). The first baffle (111) is movably provided with a first guide block (9), and the second baffle (112) is movably provided with a second guide block. The first guide block (9) and the second guide block are installed on the mounting frame (8).

8. The screening device for soil remediation of claim 1, wherein, The conveying belt (1) and the material guide groove (10) have the same inclination direction.

9. The screening apparatus for soil remediation of claim 1, wherein, The conveying belt (1) and the screen (11) have opposite inclination directions.

10. The screening device for soil remediation of claim 1, wherein, The comb plate (12) is an arc-shaped comb plate.

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