CN111906133B - Compound layer type filtering device for soil pollution restoration - Google Patents

Abstract

The invention discloses a multiple-layer filtering device for soil pollution restoration, which comprises an external box shell, a supporting base, an auxiliary grinding component, a built-in filtering component and a conveying device, wherein the external box shell is fixedly arranged on the upper end surface of the supporting base, a plurality of driving wheels are symmetrically arranged at four corners of the lower end surface of the supporting base, the auxiliary grinding component vertically penetrates through one side inside the external box shell, and the auxiliary grinding component is used for primarily grinding and refining new soil mud so that the soil mud enters the built-in filtering component in a granular form; the device is characterized in that a built-in filtering component is arranged in the outer box shell and communicated with the auxiliary milling component, a conveying device is further installed in the outer box shell and used for conveying soil muddy materials after filtering to the outside of the device and uniformly dispersing and covering the soil muddy materials to the surface layer of the soil to be modified, so that a covering nutrient film is formed on the surface layer of the soil.

Description

Soil pollution is compound laminar filter equipment for restoration

Technical Field

The invention relates to the technical field of treatment and restoration equipment for various polluted soils in agricultural land, in particular to a double-layer filtering device for soil pollution restoration.

Background

In recent years, due to the increase of population and the rapid development of industry, solid waste is continuously piled and dumped to the surface of soil, harmful waste water is continuously permeated into the soil, and waste gas discharged by automobiles, harmful gas in the atmosphere and floating dust are continuously fallen in the soil along with rainwater. The improvement of the level of agricultural chemistry causes a great amount of chemical fertilizers and pesticides to be scattered in the environment, so that the chance that the soil is polluted by non-point sources is more and more, and the degree of the pollution is more and more serious; under the influence of water and soil loss, wind erosion and the like, the pollution area is continuously enlarged. To soil pollution restoration among the prior art, through spreading new soil texture to waiting to restore the soil top layer, spray the restoration medicament by the manual work again, make the soil composition of its regional scope obtain promoting, but its new soil texture inside impurity gravel is more, make it only can reach the effect of interim maintenance, and restore the medicament and can not permeate to the soil layer completely spraying the in-process, influenced by the environment, it is very easily volatilized to the air in, the restoration effect is general, consequently, it is with multiple-layer filter equipment for soil pollution restoration need to provide one kind, in order to solve above-mentioned problem.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: a double-layer filtering device for soil pollution remediation comprises an external box shell, a supporting base, an auxiliary grinding component, a built-in filtering component and a conveying device, wherein the external box shell is fixedly arranged on the upper end face of the supporting base, a plurality of driving wheels are symmetrically arranged at four corners of the lower end face of the supporting base and are driven to operate on soil to be remediated through the driving wheels, the auxiliary grinding component vertically penetrates through one side inside the external box shell, and the auxiliary grinding component is used for primarily grinding and refining new soil muddy materials so that the soil muddy materials enter the built-in filtering component in a granular form;

a built-in filtering component is arranged in the outer box shell, the built-in filtering component is communicated with the auxiliary grinding component and is used for carrying out multi-stage filtration on soil mud,

and a conveying device is also arranged in the outer box shell, and is used for conveying the filtered soil muddy texture to the outside of the device and uniformly dispersing and covering the soil muddy texture to the surface layer of the soil to be modified so as to form a covering nutrient film on the surface layer of the soil.

As a preferable technical scheme of the invention, the auxiliary grinding component comprises a connecting cylinder, a disc protecting seat, a feeding hopper, a first transverse guide seat, a second transverse guide seat, a first grinding disc seat, a second grinding disc seat and a rotating motor, wherein one end of the connecting cylinder is embedded and fixed on an external box shell, the feeding hopper is fixed on the upper end surface of the connecting cylinder, soil mud is introduced into the connecting cylinder through the feeding hopper,

the lower end surface of the connecting cylinder is communicated with a disc protection seat, the central position in the disc protection seat can be fixed with a flow guide fan blade in a relatively rotating manner, and the flow guide fan blade is driven by an external motor to do directional rotary motion;

the left and right sides of connecting cylinder transversely runs through respectively and is provided with horizontal guide seat one and horizontal guide seat two, horizontal guide seat one stretches into a side end face of connecting cylinder with horizontal guide seat two and is connected with mill seat one and mill seat two of relative pivoted respectively, just, all install the rotating electrical machines in horizontal guide seat one and the horizontal guide seat two, the output of rotating electrical machines is connected fixedly through connecting the axostylus axostyle and mill seat one and mill seat two, and drives mill seat one and two antiport of mill seat, mill seat one is mutually supported and is ground the soil argillaceous and refine with the face of pressing close to of mill seat two.

As a preferred technical scheme of the invention, a connecting exhaust pipe is vertically fixed below the end face of one side of the transverse guide seat I, which is far away from the connecting cylinder, an extraction pump is fixed in the connecting exhaust pipe, one end of the extraction pump is communicated with an external nutrient solution storage tank for soil remediation through an air supply pipe fitting, and the other end of the extraction pump is provided with a spraying seat,

the horizontal guide seat I is further fixed with a mounting seat, a plurality of row holes are formed in the mounting seat, when the first grinding disc seat and the second grinding disc seat are matched with each other to grind soil mud, the repairing nutrient solution is sprayed out in a fog liquefaction mode through a pumping pump, and the repairing nutrient solution is conveyed to the position between the first grinding disc seat and the second grinding disc seat through the plurality of row holes, so that the repairing nutrient solution is completely blended into the soil mud.

As a preferred technical scheme of the invention, the built-in filtering component comprises a main filtering box body, an upper fixing plate, a layered filtering net, an inner clamping piece, a return spring and a connecting and oscillating component, wherein the main filtering box body is vertically supported and fixed on an outer box shell, the main filtering box body is communicated with an auxiliary grinding component, so that ground and refined soil mud enters the main filtering box body for multi-stage filtering, the upper fixing plate is horizontally fixed on the upper side inside the main filtering box body,

and a guide plate is arranged at the lower side in the main filtering box body, the upper end surface of the guide plate is in an inclined state, a plurality of layered filtering nets are vertically arranged between the upper fixing plate and the guide plate in parallel, the layered filtering nets are sequentially arranged according to the filtering pore size,

the two ends of the layered filter screen can be limited and fixed between the inner clamping pieces in a manner of sliding up and down relatively, and are connected and fixed with the upper fixing plate and the guide plate through the inner clamping pieces, a return spring is arranged between one end of the layered filter screen and the inner clamping pieces, and the other end of the layered filter screen is provided with a connecting oscillation assembly;

connect and vibrate the subassembly and carry out the multiple-stage filtration at the layered filter screen to soil muddy matter, the indirectness provides up-down reciprocating vibration to carry out the elasticity through reset spring and reset.

As a preferred technical scheme of the invention, the connecting oscillation component comprises a linear oscillator, a fixed shell, a connecting spring and a guide piece, wherein the fixed shell is fixedly sleeved outside the inner clamping piece, the linear oscillator is symmetrically arranged in the fixed shell in a left-right mode and vibrates up and down through the telescopic function of the linear oscillator, the guide piece is fixed on the layered filter screen, the extending end of the linear oscillator is fixedly connected with the guide piece,

and a connecting spring is also arranged between the linear oscillator and the guide piece.

As a preferred technical scheme of the present invention, a plurality of discharging pipes vertically penetrate through the inside of the end surface of the diversion plate, each discharging pipe is staggered with the layered filter screen, and one end of each discharging pipe is communicated with the main discharging pipe, so that when the layered filter screen completes the filtering work on soil mud, the layered filter screen discharges waste materials in each layered filter screen through the main discharging pipe.

As a preferred technical scheme of the invention, a conveying and guiding piece is also arranged between the layered filter screens.

As a preferred technical scheme of the invention, the conveying device comprises a conveying pipe fitting, a spiral fan blade, a splitter blade and a driving motor, the conveying pipe fitting is transversely and obliquely arranged in an outer box shell, one end of the conveying pipe fitting extends out of the outer box shell, the spiral fan blade is arranged in the conveying pipe fitting in a manner that the conveying pipe fitting can relatively rotate through a bearing, the driving motor is arranged in the outer box shell, the output end of the driving motor is fixedly connected with the spiral fan blade and drives the spiral fan blade to rotate circumferentially,

the conveying pipe fitting is provided with a discharge port, and a plurality of splitter blades are uniformly distributed in the discharge port.

Compared with the prior art, the invention provides a multiple-layer filtering device for soil pollution remediation, which has the following beneficial effects:

according to the invention, the auxiliary grinding component is arranged in the external box shell and is used for primarily grinding and refining new soil to enable the new soil to reach soil muddy texture with particle size in a certain range and uniformly cover and lay the new soil on the surface layer of the soil to be repaired through the conveying device to finish the repair of the soil.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the auxiliary grinding assembly of the present invention;

FIG. 3 is a schematic view of an internal structure of the lateral guide of the present invention;

FIG. 4 is a cross-sectional view of an internal filter assembly of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4;

FIG. 6 is a schematic view of the structure of the conveying device of the present invention;

in the figure: 1 outer box shell, 2 supporting bases, 201 driving wheels, 3 built-in filtering components, 301 main filtering box body, 302 upper fixing plate components, 303 diversion plate components, 304 inner clamping components, 305 layered filtering net, 306 conveying and guiding components, 307 return springs, 308 discharging pipes, 309 main discharging pipes, 4 conveying devices, 401 conveying pipe components, 402 spiral fan blades, 403 driving motors, 404 diversion blades, 5 auxiliary grinding components, 501 connecting cylinders, 502 feed hoppers, 503 transverse guide seats I, 504 transverse guide seats II, 505 grinding table seats I, 506 grinding table seats II, 507 rotating motors, 508 connecting discharging pipes, 509 extraction pumps, 510 gas supply pipe components, 511 spraying seats, 512 mounting seats, 6 disc protecting seats, 601 diversion fan blades, 7 connecting and oscillating components, 701 fixing shells, 702 linear oscillators, 703 connecting springs and 704 guide components.

Detailed Description

Referring to fig. 1, the present invention provides a technical solution: a multiple-layer filtering device for soil pollution remediation comprises an external box shell 1, a supporting base 2, an auxiliary grinding component 5, a built-in filtering component 3 and a conveying device 4, wherein the external box shell 1 is fixedly arranged on the upper end face of the supporting base 2, a plurality of driving wheels 201 are symmetrically arranged at four corners of the lower end face of the supporting base 2, the driving wheels 201 are used for driving and operating on soil to be remediated, the auxiliary grinding component 5 vertically penetrates through one side inside the external box shell 1, and the auxiliary grinding component 5 is used for primarily grinding and refining new soil muddy materials so that the soil muddy materials enter the built-in filtering component 3 in a granular form;

a built-in filtering component 3 is arranged in the outer box shell 1, the built-in filtering component 3 is communicated with an auxiliary grinding component 5 and is used for carrying out multi-stage filtering on soil mud,

the external box shell 1 is also internally provided with a conveying device 4, the conveying device 4 conveys the filtered soil muddy texture to the outside of the device and uniformly disperses and covers the soil muddy texture to the surface layer of the soil to be repaired to form a covering nutrient film on the surface layer of the soil, wherein the content proportion of the components in the new soil muddy texture needs to be matched with the content of the main components of the soil to be repaired so as to ensure that the newly added soil can be fault-tolerant with the original surface soil layer, and the covering mode adopts a proper distribution of a fixed-point area, namely, the filling amount can be properly increased in a range with relatively serious pollution, even more than 2 times of the average filling amount, and the condition of incomplete soil repair or general repair quality is prevented.

Referring to fig. 2, in this embodiment, the auxiliary grinding unit 5 includes a connecting cylinder 501, a disc guard 6, a feed hopper 502, a first lateral guide 503, a second lateral guide 504, a first grinding disc base 505, a second grinding disc base 506, and a rotating motor 507, wherein one end of the connecting cylinder 501 is embedded and fixed on the outer casing 1, the feed hopper 502 is fixed on the upper end surface of the connecting cylinder 501, soil slurry is introduced into the connecting cylinder 501 through the feed hopper 502,

the lower end surface of the connecting cylinder 501 is communicated with a disc protection seat 6, a flow guide fan blade 601 is fixed in the central position inside the disc protection seat 6 in a relatively rotatable manner, and the flow guide fan blade 601 is driven by an external motor (not shown in the figure) to do directional rotary motion;

the left side and the right side of the connecting cylinder 501 are respectively provided with a first transverse guide seat 503 and a second transverse guide seat 504 in a transverse penetrating way, the end surface of one side of the transverse guide seat I503 and the transverse guide seat II 504 extending into the connecting cylinder 501 are respectively connected with a grinding disc seat I505 and a grinding disc seat II 506 which can rotate relatively, in addition, the first transverse guide seat 503 and the second transverse guide seat 504 are both provided with a rotating motor 507, the output end of the rotating motor 507 is fixedly connected with a first grinding disc seat 505 and a second grinding disc seat 506 through connecting shaft rods, and drives the first grinding disc seat 505 and the second grinding disc seat 506 to rotate reversely, the close surfaces of the first grinding disc seat 505 and the second grinding disc seat 506 are matched with each other to grind and refine soil mud, wherein, the relative interval between accessible adjustment mill dish seat one and the mill dish seat two controls the argillaceous particle diameter after the grinding for it can fill according to the surperficial soil adaptation granule particle diameter of concrete filling.

Referring to fig. 3, in this embodiment, a connection pipe 508 is vertically fixed below one end face of the first transverse guide seat 503, which is far away from the connecting cylinder 501, an extraction pump 509 is fixed in the connection pipe 508, one end of the extraction pump 509 is communicated with an external soil remediation nutrient solution storage tank (not shown) through an air supply pipe 510, and the other end of the extraction pump is provided with a spray seat 511,

still be fixed with mount pad 512 on the horizontal guide holder 503, be provided with a plurality of round holes on the mount pad 512, work as when grinding mill seat one 505 and two 506 of mill seat mutually support and grind soil mud nature, its take out pump 509 will restore and use nutrient solution with the form blowout of fog liquefaction to carry to between mill seat one 505 and two 506 of mill through a plurality of round holes, make to restore and use in the nutrient solution fuses completely into soil mud nature, for directly spraying restoration medicament in the earth's surface soil horizon in this, it has higher volatility, and changes and provide the nutrient for the top layer of the earth.

Referring to fig. 4, in the present embodiment, the built-in filter assembly 3 includes a main filter box 301, an upper fixing plate 302, a layered filter screen 305, an inner fastening member 304, a return spring 307, and a connecting and oscillating assembly 7, wherein the main filter box 301 is vertically supported and fixed in the outer box 1, the main filter box 301 is communicated with the auxiliary grinding assembly 5, so that ground and refined soil mud enters the main filter box 301 for multi-stage filtration, the upper fixing plate 302 is horizontally fixed on the upper side inside the main filter box 301,

moreover, a guide plate member 303 is installed at the lower side of the interior of the main filter box body 301, the upper end surface of the guide plate member 303 is in an inclined state, a plurality of layered filter screens 305 are vertically arranged in parallel between the upper fixing plate member 302 and the guide plate member 303, the layered filter screens 305 are sequentially arranged according to the size of the filter pore,

the two ends of the layered filter screen 305 can be limited and fixed between the inner clamping pieces 304 in a manner of sliding up and down relatively, and are connected and fixed with the upper fixing plate 302 and the flow guide plate 303 through the inner clamping pieces 304, a return spring 307 is arranged between one end of the layered filter screen 305 and the inner clamping pieces 304, and the other end of the layered filter screen is provided with a connecting oscillation component 7;

connect and vibrate subassembly 7 and when layer-stepping filter screen 305 carries out the multistage filtration to soil muddy thing, the indirectness provides up-down reciprocating vibration to carry out the elasticity through reset spring 307 and reset, prevent that soil muddy thing from directly blockking up the filtration pore of crossing layer-stepping filter screen, cause its inside filtration efficiency low.

Referring to fig. 5, in this embodiment, the connecting oscillation assembly 7 includes a linear oscillator 702, a fixed shell 701, a connecting spring 703 and a guide 704, wherein the fixed shell 701 is fixedly sleeved outside the inner fastening member 304, the linear oscillators 702 are symmetrically arranged in the fixed shell 701 left and right, the linear oscillators 702 vibrate up and down through the telescopic function of the linear oscillators 702, the guide 704 is fixed on the layered filter screen 305, the extending end of the linear oscillator 702 is fixedly connected to the guide 704,

a connection spring 703 is further provided between the linear oscillator 702 and the guide 704.

In this embodiment, a plurality of discharging pipes 308 vertically penetrate through the inside of the end surface of the diversion plate member 303, each discharging pipe 308 and the layered filter screen 305 are distributed in a staggered manner, and one end of each discharging pipe 308 is communicated with the main discharging pipe 309, so that after the layered filter screen 305 completes filtering work on soil mud, waste materials in each layered layer are discharged through the main discharging pipe 309 through the discharging pipes 308, and herein, as a preferred embodiment, after the filtering work is performed for 15-20 minutes (which can be relatively adjusted according to the component quality of specific new mud), filtering impurities in each layered layer are periodically cleaned and removed, so that excessive accumulation of internal impurities is prevented.

In this embodiment, a guiding element 306 is further disposed between the layered filter screens 305.

Referring to fig. 6, in this embodiment, the conveying device 4 includes a conveying pipe 401, a spiral fan blade 402, a splitter blade 404 and a driving motor 403, the conveying pipe 401 is transversely and obliquely disposed in the outer casing 1, and one end of the conveying pipe extends out of the outer casing 1, the spiral fan blade 402 is disposed in the conveying pipe 401 and can relatively rotate through a bearing, the driving motor 403 is disposed in the outer casing 1, an output end of the driving motor 403 is connected and fixed with the spiral fan blade 402 and drives the spiral fan blade 402 to rotate circumferentially,

the conveying pipe fitting 401 is provided with a discharge hole, and a plurality of splitter blades 404 are uniformly distributed in the discharge hole, so that soil mud can be uniformly distributed on the surface layer.

Specifically, when the polluted soil surface is repaired, a certain amount of new soil mud is poured into the connecting cylinder through the feeding hopper, the soil mud is ground and refined through the mutual matching of the first grinding disc seat and the second grinding disc seat, the nutrient solution for soil repair in the storage tank is effectively sprayed out in an atomized form by the extraction pump so as to be fully blended into the new soil mud, then the nutrient solution is introduced into the built-in filtering component through the guide fan blades, the soil mud is subjected to multistage filtering through the built-in filtering component, in order to prevent the mesh blockage of the layered filtering net from influencing the filtering efficiency, the up-and-down reciprocating vibration can be indirectly provided by the connecting and oscillating component, in the process, waste materials in each layered layer can be periodically discharged from the main discharge pipe through the discharge pipe, and then conveyed through the conveying device after filtering is finished so as to cover the soil surface layer, and a nutrient film is formed on the soil surface layer, the soil surface is repaired.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention, and the technical solution and the inventive concept thereof should be covered by the scope of the present invention.

Claims (2)

1. The utility model provides a soil pollution is multiple-layer filtering device for restoration, its includes outside case shell (1), supports base (2), supplementary subassembly (5), built-in filtering component (3) and conveyor (4) of milling, wherein, outside case shell (1) is fixed to be set up in the up end of supporting base (2), the lower terminal surface four corners position symmetry of supporting base (2) is provided with a plurality of drive wheels (201) to through drive wheel (201) carry out drive operation on the soil that is waited to restore, its characterized in that: an auxiliary grinding component (5) vertically penetrates through one side of the inner part of the outer box shell (1), and the auxiliary grinding component (5) is used for primarily grinding and refining new soil muddy texture, so that the soil muddy texture enters the built-in filtering component (3) in a granular form;

a built-in filtering component (3) is arranged in the outer box shell (1), the built-in filtering component (3) is communicated with the auxiliary grinding component (5) and is used for carrying out multi-stage filtration on soil mud,

the outer box shell (1) is also internally provided with a conveying device (4), the conveying device (4) conveys the filtered soil muddy texture to the outside of the device and uniformly disperses and covers the soil muddy texture to the surface layer of the soil to be modified, so that a covering type nutrient film is formed on the surface layer of the soil;

the auxiliary grinding assembly (5) comprises a connecting cylinder (501), a disc protecting seat (6), a feeding hopper (502), a transverse guide seat I (503), a transverse guide seat II (504), a grinding disc seat I (505), a grinding disc seat II (506) and a rotating motor (507), wherein one end of the connecting cylinder (501) is embedded and fixed on an external box shell (1), the feeding hopper (502) is fixed on the upper end face of the connecting cylinder (501), soil mud is introduced into the connecting cylinder (501) through the feeding hopper (502), the disc protecting seat (6) is communicated with the lower end face of the connecting cylinder (501), a flow guide fan blade (601) is fixed in the disc protecting seat (6) in a manner that the center position inside the disc protecting seat can rotate relatively, and the flow guide fan blade (601) is driven by the external motor to do directional rotating motion;

the left side and the right side of the connecting cylinder (501) are respectively provided with a first transverse guide seat (503) and a second transverse guide seat (504) in a transverse penetrating manner, the first transverse guide seat (503) and the second transverse guide seat (504) extend into one side end face of the connecting cylinder (501) and are respectively connected with a first grinding disc seat (505) and a second grinding disc seat (506) in a relatively rotatable manner, rotating motors (507) are respectively installed in the first transverse guide seat (503) and the second transverse guide seat (504), the output ends of the rotating motors (507) are fixedly connected with the first grinding disc seat (505) and the second grinding disc seat (506) through connecting shaft rods and drive the first grinding disc seat (505) and the second grinding disc seat (506) to rotate reversely, and the first grinding disc seat (505) and the second grinding disc seat (506) are matched with each other to grind and refine soil argil;

a connecting pipe rack (508) is vertically fixed below the end face of one side of the transverse guide seat I (503) far away from the connecting cylinder (501), an extraction pump (509) is fixed in the connecting pipe rack (508), one end of the extraction pump (509) is communicated with an external nutrient solution storage tank for soil remediation through an air supply pipe fitting (510), and the other end is provided with a spraying seat (511), the transverse guide seat I (503) is also fixed with a mounting seat (512), the mounting seat (512) is provided with a plurality of row holes, when the first grinding disc seat (505) and the second grinding disc seat (506) are matched with each other to grind soil mud, the extraction pump (509) sprays the nutrient solution for repairing in a fog-liquid state, and the nutrient solution is conveyed to a position between a first grinding disc seat (505) and a second grinding disc seat (506) through a plurality of discharge holes, so that the nutrient solution for repairing is completely blended into soil mud;

the built-in filtering component (3) comprises a main filtering box body (301), an upper fixing plate (302), layered filtering nets (305), an inner clamping piece (304), a return spring (307) and a connecting and oscillating component (7), wherein the main filtering box body (301) is vertically supported and fixed in an outer box shell (1), the main filtering box body (301) is communicated with an auxiliary grinding component (5) so that ground and refined soil mud enters the main filtering box body (301) for multi-stage filtering, the upper side inside the main filtering box body (301) is horizontally fixed with the upper fixing plate (302), a flow guide plate component (303) is installed on the lower side inside the main filtering box body (301), the upper end of the flow guide plate component (303) is in an inclined state, and the layered filtering nets (305) are vertically arranged between the upper fixing plate component (302) and the flow guide plate component (303) in parallel, the layered filter screens (305) are sequentially arranged according to the size of a filter aperture, two ends of each layered filter screen (305) can be limited and fixed between the inner clamping pieces (304) in a manner of sliding up and down relatively, and are connected and fixed with the upper fixing plate (302) and the flow guide plate (303) through the inner clamping pieces (304), a return spring (307) is arranged between one end of each layered filter screen (305) and the inner clamping pieces (304), and the other end of each layered filter screen is provided with a connecting oscillation assembly (7);

when the layered filter screen (305) performs multi-stage filtration on soil mud, the connecting oscillation component (7) indirectly provides up-and-down reciprocating vibration and performs elastic reset through a reset spring (307);

the connection oscillation assembly (7) comprises a linear oscillator (702), a fixed shell (701), a connection spring (703) and a guide piece (704), wherein the fixed shell (701) is fixedly sleeved outside the inner clamping piece (304), the linear oscillators (702) are symmetrically arranged in the fixed shell (701) from left to right, the linear oscillators (702) vibrate up and down through the telescopic function of the linear oscillators, the guide piece (704) is fixed on the layered filter screen (305), the extending end of the linear oscillator (702) is fixedly connected with the guide piece (704), and the connection spring (703) is further arranged between the linear oscillator (702) and the guide piece (704);

a plurality of discharging pipes (308) vertically penetrate through the inner part of the end face of the guide plate member (303), each discharging pipe (308) and the layered filter screen (305) are distributed in a staggered manner, and one end of each discharging pipe (308) is communicated with a main discharging pipe (309), so that when the layered filter screen (305) finishes filtering soil mud, waste materials in each layered layer are discharged through the main discharging pipe (309) through the discharging pipes (308);

and a conveying and guiding piece (306) is also arranged between the layered filter screens (305).

2. A multiple layer filtration device for soil remediation according to claim 1, wherein: conveyor (4) are including carrying pipe fitting (401), helical blade (402), reposition of redundant personnel blade (404) and driving motor (403), carry pipe fitting (401) horizontal slope to set up in outside case shell (1), and its one end stretches out outside case shell (1), but carry pipe fitting (401) interior relative pivoted through the bearing and be provided with helical blade (402), install driving motor (403) in outside case shell (1), the output and helical blade (402) of driving motor (403) are connected fixedly, and drive helical blade (402) circumference rotates, the discharge gate has been seted up on carrying pipe fitting (401), a plurality of reposition of redundant personnel blade (404) have evenly been arranged in the discharge gate.

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