CN215785653U - Soil purifying equipment - Google Patents

Abstract

The utility model discloses a soil purifying device. The soil purifying equipment comprises a soil crushing device, a first conveying device, a soaking tank, a second conveying device, a leaching sieve, a flushing device, a leaching collecting device, a third conveying device, a stirring tank, a medicament adding device, a fourth conveying device, a fifth conveying device, a sludge concentrating device, a desanding device, a filter press and a waste liquid collecting tank. Soil clarification plant passes through breaker, soaks jar and drip washing sieve and realizes the physics of soil and purifies, gets rid of the large granule material in the soil, and rethread agitator tank, sludge concentration device and devices such as sand removal device, pressure filter realize the filtration of soil and the getting rid of pollutant to through comparatively retrencied mechanical structure, realized the purification of soil.

Description

Soil purifying equipment

Technical Field

The utility model relates to the technical field of soil leaching remediation, in particular to a soil purifying device.

Background

The soil leaching and repairing technology is a technology for separating heavily polluted soil components or transferring pollutants from soil to liquid phase by adopting soil purifying equipment and combining means such as physical separation or chemical leaching and the like. The soil leaching technology is divided into an in-situ leaching technology and an ex-situ leaching restoration technology according to a construction mode. The ex-situ leaching remediation technology is more widely applied than the in-situ leaching remediation technology, but the process is more complex, and the primary aim of the ex-situ leaching remediation technology is to concentrate the pollutants by utilizing the particle size distribution characteristics of the pollutants and then reduce the concentration of the pollutants, namely to directly remove the pollutants from the soil.

The structure of the current soil purification equipment is complex, which causes higher cost of soil purification.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the soil purifying equipment with a simplified structure.

According to the soil purifying apparatus of the embodiment of the present invention, the soil purifying apparatus includes:

the soil screening module comprises a soil crushing device, a first conveying device, a soaking tank, a second conveying device and a leaching sieve, wherein the first conveying device is used for conveying the soil in the soil crushing device to the soaking tank, the soaking tank is used for stirring and dispersing the soil, the second conveying device is used for conveying the soil in the soaking tank to the leaching sieve, and the leaching sieve is used for filtering the soil;

the soil leaching module comprises a flushing device, a leaching and collecting device, a third conveying device, an agitator tank and a medicament adding device, wherein the flushing device is used for releasing liquid towards the screen surface of the leaching sieve, the leaching and collecting device is connected to the bottom end of the leaching sieve and is used for collecting the soil, the third conveying device is used for conveying the soil in the leaching and collecting device to the agitator tank, the medicament adding device is used for conveying a medicament to the agitator tank, and the agitator tank is used for mixing and stirring the soil and the medicament;

the soil concentration module comprises a fourth conveying device, a fifth conveying device, a sludge concentration device, a desanding device, a filter press and a waste liquid collecting tank, wherein the fourth conveying device is used for conveying the soil in the stirring tank to the sludge concentration device, the sludge concentration device is used for stirring and layering the soil, the desanding device is connected to the upper end of the sludge concentration device, the fifth conveying device is used for conveying the soil in the desanding device and the sludge concentration device to the filter press, and the waste liquid collecting tank is used for collecting waste liquid discharged by the desanding device and the filter press.

According to the soil purifying equipment provided by the embodiment of the utility model, at least the following technical effects are achieved:

in this embodiment, soil breaker can be broken with the large granule material in the soil, so that soil soaks the stirring in soaking tank, soil soaks the stirring back, can be carried to the drip washing sieve by second conveyor, let soil be separated the large granule grit in the soil by the drip washing sieve, rethread washing unit, make soil washed on the drip washing sieve, make the glutinous grain that adheres to the large granule grit in the soil also can get into drip washing collection device, so that with the separation of the large granule material in the soil, realize getting rid of impurity in the soil.

Soil is carried to the agitator tank by third conveyor in, and the medicament adds the device and adds the agitator tank with the medicament, and the agitator tank stirs soil and medicament and mixes to get rid of the pollutant in the soil. The fourth conveying device conveys the soil to the sludge concentration device from the stirring tank, so that the sludge concentration device can stir the soil, the solid-liquid separation of the soil is realized, the upper layer liquid is conveyed to the desanding device for further desanding, and the lower layer precipitated soil enters the filter press. The desanding device carries out further solid-liquid separation on the upper-layer liquid, the solid is conveyed to the filter press, the liquid is conveyed to the waste liquid collecting tank, the filter press can filter the soil, the waste liquid generated in the filter press is conveyed to the waste liquid collecting tank, and therefore deep purification of the soil is achieved. Therefore, the soil purifying equipment in the embodiment can realize the purification of the soil through a relatively simple structure.

According to some embodiments of the utility model, the soil screening module further comprises a first vibration device connected to an outer sidewall of the soil breaking device for vibrating stripping the soil on an inner wall of the soil breaking device.

According to some embodiments of the present invention, the leaching collection device further includes a first discharge port, the first discharge port is connected to the third conveying device, the leaching collection device is further provided with a guide inclined plane, the guide inclined plane is located below the leaching sieve and forms an included angle with the bottom surface of the leaching collection device, and an opening direction of the included angle is far away from the first discharge port.

According to some of the embodiments of the utility model, the included angle is between 15 ° and 80 °.

Some embodiments according to the utility model are characterized in that the leaching sieve is provided with a screening surface, the screening surface is arc-shaped, and the direction of concavity of the screening surface is towards the leaching collection device.

According to some of the embodiments of the utility model, the washing screen has a wrap angle between 15 ° and 60 °.

According to some of the embodiments of the utility model, the desanding device is a high chromium cast iron desanding device.

According to some of the embodiments of the utility model, the third and fourth transport devices comprise sludge pumps.

According to some of the embodiments of the utility model, the fifth transporting device comprises an air operated diaphragm pump.

According to some of the embodiments of the utility model, the immersion tank comprises a first dispersion disc and is provided with a first dispersion cavity, the first dispersion disc being provided in the first dispersion cavity, the first dispersion disc and the first dispersion cavity having a diameter ratio of 0.3 to 0.7.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a soil cleaning apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a soil crushing device of the soil purification apparatus according to one embodiment of the present invention.

Reference numerals:

the first conveying device 10, the second conveying device 20, the third conveying device 30, the fourth conveying device 40 and the fifth conveying device 50;

the device comprises a soil crushing device 100, a first vibrating device 110, a crushing gear 120, a stirring paddle 130, a first stirring paddle 131, a second stirring paddle 132, a crushing filter screen 140, a soaking tank 200, a first dispersion disc 210, a first dispersion cavity 220, a leaching sieve 300, a sieve surface 310, a flushing device 320, a second vibrating device 330, a leaching and collecting device 400, a guide inclined plane 410, a first discharge hole 420, a stirring tank 500, a medicament adding device 600, a medicament storage part 610, a medicament conveying pump 620, a sludge concentrating device 700, a second dispersion disc 710, a sand removing device 800, a filter press 900 and a waste liquid collecting tank 910.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "up", "down", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "connected", or "mounted" to another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, or connected to the other feature.

According to a soil decontamination apparatus of an embodiment of the first aspect of the utility model, the soil decontamination apparatus comprises:

a soil screening module (not labeled in the figure), referring to fig. 1, the soil screening module includes a soil crushing device 100, a first conveyor 10, a soaking tank 200, a second conveyor 20, and a washing sieve 300. Referring to fig. 2, soil breaking device 100 includes at least one stirring paddle 130 and at least one breaking gearbox (not labeled in the figure). The crushing gear box includes at least one pair of crushing gears 120, and the crushing gears 120 are provided with at least one first through hole (not shown in the drawings) penetrating the crushing gears 120, so that when the pair of crushing gears 120 are overlapped with each other and reversely rotated in opposite rotation, two first through holes of the pair of crushing gears 120 have both states of communication or alternation, thereby causing the side walls of the first through holes to perform preliminary shearing agitation of soil by the relative rotation of the pair of crushing gears 120. When soil enters the working area of the stirring paddle 130 through the shearing stirring of the first through hole, the stirring paddle 130 can repeatedly stir the soil, so that the soil is broken. The bottom of the soil crushing device 100 is provided with a crushing filter screen 140, and the aperture of the screen hole of the crushing filter screen 140 is less than 5mm, so that only soil stirred in the soil crushing device 100 to a diameter of less than 5mm can pass through the crushing filter screen 140.

The structural strength and the shearing force of the crushing gear 120 are generally greater than those of the stirring paddle 130, so that the crushing gear is not easy to damage and is easier to shear hard soil when stirring large-particle soil and hard soil, but when the soil humidity is large, the crushing gear easily causes the soil to be bonded again, and the soil cannot be crushed sufficiently. Therefore, the soil crushing device 100 in this embodiment adopts a structure in which soil is first crushed primarily by stirring the soil through the crushing gear box and then crushed secondarily by the stirring paddle 130. Therefore, the stirring paddle 130 can be prevented from being broken by the large-volume soil and the hard soil, and the crushing efficiency of the soil can be improved through primary crushing and secondary crushing. It will be appreciated that the cross-sectional area of the bottom of soil breaking device 110 decreases from top to bottom, thereby allowing soil to slide down to breaking screen 140 under the influence of gravity, avoiding soil sticking to the inner walls of soil breaking device 100.

Due to the arrangement of the crushing filter net 140, the soil crushing device 100 in the embodiment can adjust the size of the soil processed by the soil crushing device 100 by replacing the crushing filter net 140 according to the purification requirement, and it can be understood that the soil crushing device 100 can have two stirring paddles 130, and the stirring directions of the two stirring paddles 130 are opposite, and the two stirring paddles are all stirred from bottom to top. Specifically, referring to fig. 2, soil crushing device 100 includes first stirring rake 131 and second stirring rake 132, the stirring direction of first stirring rake 131 is anticlockwise stirring, the stirring direction of second stirring rake 132 is clockwise stirring, therefore, when soil falls into between two stirring rakes 130 from first through-hole, soil not only is stirred by stirring rake 130, stirring rake 130 can also apply an ascending power to soil simultaneously, make the soil of big granule can be carried to the top of stirring rake 130 from bottom to top by stirring rake 130 from this, and the soil of small granule then passes stirring rake 130, thereby make the soil of big granule can be stirred many times, and then improve the crushing efficiency of soil.

Referring to fig. 1, the first conveying device 10 is a conveyor belt capable of conveying soil from below the soil crushing device 110 to the soaking tank 200, the soaking tank 200 is provided with a first dispersion plate 210, and the soaking tank 200 is filled with a solution, so that the soil can be dispersed in the solution, and the soil can be stirred and dispersed by the first dispersion plate 210 in the soaking tank 200. Since the soil is dispersed in the solution in the soaking tank 200 and stirred by the first dispersion plate 210, the soil is stirred to be muddy. The second conveying device 20 is a screw conveyor, the screw conveyor can convey soil in a mud state to the leaching sieve 300, and the leaching sieve 300 can further sieve large-particle substances in the soil, so that a good physical purification effect is achieved.

It will be appreciated that the steeping tank 200 can include a high pressure water outlet (not shown in the figures) and that the steeping tank 200 is not filled with solution until the soil enters the steeping tank 200. When soil gets into soaking tank 200, high-pressure rivers can be erupted to the high pressure delivery port, stirs the dispersion through the shearing force of rivers and first dispersion dish 210 jointly to soil, improves the efficiency of the stirring dispersion of soil from this. Since the soil forms the mixed solution after being stirred by the soaking tank 200, the second conveying device 20 may be a screw conveyor, thereby ensuring the transportation efficiency of the mixed solution.

A soil washing module (not marked in the figure), which comprises a flushing device 320, a washing and collecting device 400, a third conveying device 30, a stirring tank 500 and a medicament adding device 600. Referring to fig. 1, after the soil reaches the leaching sieve 300, since the large granular matters in the soil are filtered by the leaching sieve 300, but the surface of the large granular matters is usually wrapped by a layer of sticky particles, at this time, the washing device 320 is required to spray liquid, and the large granular matters are washed by the liquid, so that the sticky particles can pass through the leaching sieve 300, and the contaminated soil is prevented from being attached to the large granular matters such as stones. The leaching collecting device 400 is disposed below the leaching sieve 300, and is capable of collecting soil sieved by the leaching sieve 300 and liquid sprayed by the washing device 320.

The third transfer device 30 can transfer the solution mixed with soil in the leaching collection device 400 to the agitation tank 500. The chemical adding device 600 includes a chemical storage 610 and a chemical delivery pump 620, the chemical storage 610 stores a chemical, and the chemical may be prepared by chelating agent such as hydrochloric acid, acetic acid, EDTA, citric acid, or surfactant such as sodium dodecyl sulfate, or by mixing them, and can chemically remove pollutants such as heavy metals in soil.

And the soil concentration module (not marked in the figure) comprises a fourth conveying device 40, a fifth conveying device 50, a sludge concentration device 700, a desanding device 800, a filter press 900 and a waste liquid collecting tank 910. The fourth transfer device 40 transfers the solution mixed with soil in the agitation tank 500 to the sludge concentration device 700, and the sludge concentration device 700 is provided with a second dispersion plate 710, and under the agitation action of the second dispersion plate 710, the solid and the liquid in the solution mixed with soil are layered. The fifth conveying device 50 conveys the soil-mixed solution on the upper layer of the sludge concentration device 700 to the desanding device 800, and the desanding device 800 is required to separate the soil with small particles from the solution part because the liquid part still contains part of the soil with small particles, so that the purpose of collecting the soil with small particles is achieved.

The upper end of the desanding device 800 is connected to the waste liquid collecting tank 910, the waste liquid collecting tank 910 can collect waste liquid generated after desanding by the desanding device 800, the lower end of the desanding device 800 is connected to the fifth conveying device 50, and after the desanding device 800 is desanded by the fifth conveying device 50, the lower-layer precipitated solid is conveyed to the filter press 900. The filter press 900 receives the soil from the sludge concentration device 700 and the desanding device 800 and compresses the soil, thereby completing the purification of the soil. Therefore, the soil purification equipment in the embodiment adopts a simplified structure, realizes the purification of the soil and reduces the production cost of the soil purification equipment.

In some embodiments, reference is made to fig. 1 and 2 in particular. Soil has certain viscosity, so when soil is stirred in the soil crushing device 100, part of soil adheres to the inner wall of the soil crushing device 100, so that the soil crushing device 100 is blocked, and the soil crushing efficiency is reduced. Therefore, the soil screening module further includes a first vibration device 110, the first vibration device 110 is connected to the outer sidewall of the soil crushing device 100, and the vibration frequency of the first vibration device 110 may be between 100 times per minute and 15000 times per minute. The vibration frequency of the first vibration device 110 in this embodiment is 300 times per minute, so that when the first vibration device 110 can vibrate and peel off the soil attached to the soil crushing device 100, the soil crushing device 100 can be prevented from being structurally dispersed due to too high vibration frequency. Therefore, the first vibration device 110 in this embodiment can peel off the soil on the inner wall of the soil crushing device 100 by vibration, so as to achieve the effect of preventing the soil from adhering to the inner wall of the soil crushing device 100 and preventing the soil from accumulating in the soil crushing device 100, thereby improving the purification efficiency of the soil.

It will be appreciated, with reference to fig. 1, that the soil washing module may include a second vibratory device 330, the second vibratory device 330 being connected to the washing screen 300, thereby enabling the washing screen 300 to vibrate, thereby making it easier for the soil to pass through the washing screen 300, and improving the screening efficiency of the soil after it falls into the washing screen 300.

In some embodiments, specifically, soil is screened by screen 300 and falls into drip collection unit 400, and a portion of the soil typically accumulates below screen 300. Therefore, the leaching collection device 400 further includes a first discharge port 420, the first discharge port 420 is connected to the third conveying device 30, the leaching collection device 400 is further provided with a guide inclined plane 410, the guide inclined plane 410 is located below the leaching sieve 300 and forms an included angle with the bottom surface of the leaching collection device 400, referring to fig. 1, the included angle is marked as a, and the opening direction of the included angle faces to the left and is far away from the first discharge port 420. After the soil falls from the leaching sieve 300 to the guide slope 410, the guide slope 410 can play a role in guiding the soil to roll to the first discharge hole 420, thereby preventing the soil from accumulating in the leaching collection device 400.

In some embodiments, the angle with reference to fig. 1 is between 15 ° and 80 °. Specifically, referring to fig. 1, the size of the included angle of the guiding inclined plane 410 affects the friction angle of the soil when the soil falls on the guiding inclined plane 410, and further affects the sliding distance of the soil from the guiding inclined plane 410, and when the included angle is 45 °, the sliding distance of the soil on the guiding inclined plane 410 is farthest, so that the size of the included angle of the guiding inclined plane 410 in this embodiment is 45 °, so that the soil can slide to the first discharge hole 420 as much as possible and be collected by the third conveying device 30.

In some embodiments, it is characterized by the fact that, with reference to fig. 1, when the screening surface 310 of the leaching screen 300 is planar, the soil has a short residence time on the screening surface 310 and therefore cannot be screened sufficiently. Therefore, the sieve surface 310 is arranged on the leaching sieve 300, the sieve surface 310 is arc-shaped, and the concave direction of the sieve surface 310 faces the leaching and collecting device 400, so that the soil can fully roll on the arc-shaped sieve surface 310 after falling into the leaching sieve 300, the contact area between the soil and the leaching sieve 300 is enlarged, and the soil can be fully screened by the leaching sieve 300.

In some embodiments, the wrap angle of the rinsing screen 300 is between 15 ° and 60 °. Specifically, referring to fig. 1, as the larger the wrap angle of the sieve bend is, the longer the soil stays on the screen surface 310, the more sufficient the soil contacts the screen surface 310, but the greater the impact force of the soil on the screen surface 310 when the soil falls on the screen surface 310, the more easily the damage of the screen surface 310 is caused, and therefore, the wrap angle of the leaching sieve 300 in the embodiment is 45 degrees, thereby preventing the leaching sieve 300 from being damaged due to the larger impact of the soil on the screen surface 310 while ensuring that the soil stays on the screen surface 310 for a longer time.

In some embodiments, the desanding device 800 is a high chromium cast iron desanding device 800. Specifically, referring to fig. 1, there are many types of sand removing devices 800, such as a high-chromium cast iron cyclone sand remover and a high-wear-resistant polyurethane cyclone sand remover, wherein the high-wear-resistant polyurethane cyclone sand remover has high wear resistance, high temperature resistance, and high cost. The high-chromium cast iron cyclone desander is not resistant to high temperature, has general wear resistance, but has lower cost, so that the volume of solid particles contained in the solution inside the desanding device 800 is smaller and the content of the solid particles is less when the desanding device 800 in the embodiment is used, so that the requirement on the wear resistance of the desanding device 800 is lower, and the desanding device 800 does not need high-temperature heating, so that the high-chromium cast iron cyclone desander can be selected for use, and the production cost of the soil purification equipment is reduced.

In some embodiments, the third and fourth conveyors 30, 40 comprise sludge pumps. Specifically, referring to fig. 1, since soil exists in the slurry-like mixed solution when the third and fourth conveyors 30 and 40 transport the soil, if the mixed solution containing soil is transported using a general water pump, the transport efficiency may be low due to poor fluidity of the mixed solution. Therefore, the third and fourth transport devices 30 and 40 in the present embodiment employ a sludge pump which is a positive displacement pump, thereby being capable of efficiently transporting such a liquid having poor fluidity as a slurry-like mixed solution containing soil.

In some embodiments, fifth delivery device 50 comprises an air operated diaphragm pump. Specifically, referring to fig. 1, the fifth transfer device 50 functions to transfer soil deposited on a lower layer formed during the processing by the desanding device 800 and the sludge thickening device 700, and the soil is in the form of a fluid having a high viscosity, so that when the soil is transported by a device such as a centrifugal pump, a speed reducer or a speed governor needs to be provided, which leads to an increase in cost. Therefore, the fifth conveying device 50 in this embodiment uses the pneumatic diaphragm pump to transport the soil, and at this time, since the pneumatic diaphragm pump uses gas as power, the flow of the soil is actively adjusted along with the change of the back pressure, so that the stable transportation of the soil can be ensured, and the effect of reducing the production cost of the soil purification equipment is achieved.

In some embodiments, referring to fig. 1, the steeping tank 200 comprises a first dispersion tray 210 and is provided with a first dispersion chamber 220, the first dispersion tray 210 being provided in the first dispersion chamber 220, the diameter ratio of the first dispersion tray 210 and the first dispersion chamber 220 being 0.3 to 0.7. Specifically, in the device for stirring and dispersing, the ratio of the sizes of the dispersion plate and the accommodating space in which the dispersion plate is located affects the efficiency of stirring and dispersing, and the temperature generated during stirring and dispersing. Generally, the larger the ratio of the sizes of the accommodating spaces in which the dispersion disks and the dispersion disks are located is, the higher the efficiency of stirring and dispersion is, the higher the temperature generated in the stirring and dispersion process is, and the temperature rise easily causes chemical changes of the stirred substances or causes deformation of the stirring device due to too high temperature rise, so the ratio of the diameters of the first dispersion disk 210 and the first dispersion cavity 220 in the embodiment is 0.6, and thus, while the efficiency of stirring and dispersion of the soaking tank 200 is ensured, high temperature generated in the stirring and dispersion process is avoided.

In the description herein, references to the description of "some embodiments" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. Soil clarification plant for the purification of soil, characterized by, includes:

the soil screening module comprises a soil crushing device, a first conveying device, a soaking tank, a second conveying device and a leaching sieve, wherein the first conveying device is used for conveying the soil in the soil crushing device to the soaking tank, the soaking tank is used for stirring and dispersing the soil, the second conveying device is used for conveying the soil in the soaking tank to the leaching sieve, and the leaching sieve is used for filtering the soil;

the soil leaching module comprises a flushing device, a leaching and collecting device, a third conveying device, an agitator tank and a medicament adding device, wherein the flushing device is used for releasing liquid towards the screen surface of the leaching sieve, the leaching and collecting device is connected to the bottom end of the leaching sieve and is used for collecting the soil, the third conveying device is used for conveying the soil in the leaching and collecting device to the agitator tank, the medicament adding device is used for conveying a medicament to the agitator tank, and the agitator tank is used for mixing and stirring the soil and the medicament;

the soil concentration module comprises a fourth conveying device, a fifth conveying device, a sludge concentration device, a desanding device, a filter press and a waste liquid collecting tank, wherein the fourth conveying device is used for conveying the soil in the stirring tank to the sludge concentration device, the sludge concentration device is used for stirring and layering the soil, the desanding device is connected to the upper end of the sludge concentration device, the fifth conveying device is used for conveying the soil in the desanding device and the sludge concentration device to the filter press, and the waste liquid collecting tank is used for collecting waste liquid discharged by the desanding device and the filter press.

2. The soil decontamination apparatus of claim 1, wherein said soil screening module further comprises a first vibration device attached to an outer sidewall of said soil disruption device for vibrationally stripping said soil from an inner wall of said soil disruption device.

3. The soil purifying equipment of claim 1, wherein the leaching collecting device further comprises a first discharge port, the first discharge port is connected with the third conveying device, the leaching collecting device is further provided with a guide inclined plane, the guide inclined plane is located below the leaching sieve and forms an included angle with the bottom surface of the leaching collecting device, and the opening direction of the included angle is far away from the first discharge port.

4. The soil decontamination apparatus of claim 3, wherein said included angle is between 15 ° and 80 °.

5. The soil decontamination apparatus of claim 4, wherein the elution screen is provided with a screening surface, the screening surface is arcuate in shape, and the screening surface is concave in a direction towards the elution collection device.

6. The soil decontamination apparatus of claim 1, wherein said washing screen has a wrap angle of between 15 ° and 60 °.

7. The soil decontamination apparatus of claim 1, wherein said desanding device is a high chromium cast iron desanding device.

8. The soil decontamination apparatus of claim 1, wherein the third and fourth delivery devices comprise sludge pumps.

9. The soil decontamination apparatus of claim 1, wherein said fifth delivery device comprises a pneumatic diaphragm pump.

10. The soil decontamination apparatus of claim 1, wherein said steeping tank includes a first dispersion disk and is provided with a first dispersion chamber, said first dispersion disk being disposed in said first dispersion chamber, a diameter ratio of said first dispersion disk and said first dispersion chamber being from 0.3 to 0.7.

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