CN110052490B - Circulating chemical leaching soil remediation system and remediation method thereof - Google Patents
Circulating chemical leaching soil remediation system and remediation method thereof Download PDFInfo
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- CN110052490B CN110052490B CN201910364674.2A CN201910364674A CN110052490B CN 110052490 B CN110052490 B CN 110052490B CN 201910364674 A CN201910364674 A CN 201910364674A CN 110052490 B CN110052490 B CN 110052490B
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- 239000002689 soil Substances 0.000 title claims abstract description 128
- 238000002386 leaching Methods 0.000 title claims abstract description 79
- 238000005067 remediation Methods 0.000 title claims abstract description 26
- 239000000126 substance Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 238000007599 discharging Methods 0.000 claims abstract description 47
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 69
- 239000006228 supernatant Substances 0.000 claims description 32
- 238000005507 spraying Methods 0.000 claims description 29
- 230000008929 regeneration Effects 0.000 claims description 21
- 238000011069 regeneration method Methods 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 8
- 238000010828 elution Methods 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 230000008439 repair process Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical group [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a soil remediation system with circulating chemical leaching and a remediation method thereof, and the soil remediation system comprises a rotary conveying device, a leaching component, a rotary leaching container and a guide component, wherein the rotary conveying device is of an annular conveying structure, a soil feeding device is arranged corresponding to a soil feeding end, a soil discharging device is arranged corresponding to a soil discharging end, and the guide component blocks or communicates a material conveying channel between the soil discharging end and the soil discharging device; the rotary leaching device comprises a plurality of rotary leaching containers, the rotary leaching containers are arranged at intervals along the rotating direction of the rotary conveying device, the rotary conveying device penetrates through the inner cavities of the rotary leaching containers along the rotating axis direction of the rotary leaching containers, leaching components are arranged in the inner cavities of the rotary leaching containers, and the leaching components spray leaching repairing agents on conveying surfaces of the rotary conveying device passing through the inner cavities of the rotary leaching containers, so that the whole floor area of the system can be reduced, and meanwhile, the soil repairing sufficiency can be greatly improved.
Description
Technical Field
The invention belongs to the field of soil remediation, and particularly relates to a circulating chemical leaching soil remediation system and a remediation method thereof.
Background
Soil is an important component of the natural environment and is the material foundation on which humans live. In recent years, various activities of human beings have increasingly influenced the soil environment, and the heavy metal pollution of the soil is increasingly serious. The heavy metal pollution sources of soil are wide, and mainly come from production and living activities of human beings, including mining, smelting, metal processing, chemical industry, waste battery treatment, electronic, tanning, dye and other industrial discharged three wastes, automobile exhaust emission, pesticide and fertilizer application and the like.
The technology for restoring the heavy metal contaminated soil mainly comprises a physical restoring method, chemical leaching, phytoremediation and the like, wherein the chemical leaching restoring method is most widely applied, not only can be used for restoring in situ, but also can be used for restoring in different places, and has the advantages of stable treatment effect and thorough restoration.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the circulating chemical leaching soil remediation system and the remediation method thereof, which can reduce the overall occupied area of the system and greatly improve the soil remediation sufficiency.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:
a circulating chemical leaching soil remediation system comprises a soil feeding device, a rotary conveying device, a spraying assembly, a rotary leaching container, a guide assembly and a soil discharging device, wherein the rotary conveying device is of a flat annular conveying structure and comprises a soil feeding end and a soil discharging end, the soil feeding device is arranged corresponding to the soil feeding end and feeds soil particles into the rotary conveying device, the soil discharging device is arranged corresponding to the soil discharging end and outputs leached soil on the rotary conveying device, the guide assembly is arranged on the soil discharging end, and the guide assembly blocks or is communicated with a material conveying channel between the soil discharging end and the soil discharging device;
the rotary leaching device comprises a plurality of rotary leaching containers, a rotary conveying device and a spraying assembly, wherein the rotary leaching containers are arranged at intervals along the rotating direction of the rotary conveying device, the rotary conveying device penetrates through the inner cavity of the rotary leaching containers along the rotating axis direction of the rotary leaching containers, the spraying assembly is arranged in the inner cavity of the rotary leaching containers, and the spraying assembly sprays a leaching repairing agent on the conveying surface of the rotary conveying device passing through the inner cavity of the rotary leaching containers.
Furthermore, the rotary leaching container comprises a rotary drum with openings at two ends, an annular baffle plate and slurry lifting plates, the two baffle plates are respectively and coaxially arranged at the two opening ends of the rotary drum, the plurality of slurry lifting plates are circumferentially arranged on the inner wall of the rotary drum by taking the rotary axis as an axis, the slurry lifting plates are arranged at intervals of the spraying assembly, and the slurry lifting plates and the inner wall of the rotary drum form a slurry temporary storage area; the slurry within the bowl is transferred from the bottom of the bowl to the top of the bowl by the rotation of the mud lift plate.
Furthermore, the rotary conveying device comprises two first conveying belts arranged in parallel and two second conveying belts arranged in parallel, the two first conveying belts respectively penetrate through the rotary leaching container along the rotation axis of the rotary leaching container, the two second conveying belts are respectively arranged between the two first conveying belts, the conveying direction of the second conveying belts is perpendicular to the conveying direction of the first conveying belts, and the two second conveying belts are respectively connected with the two first conveying belts in an end-to-end manner to form a closed loop of annular conveying.
Further, the rotary drum is of a cylindrical structure with a thin middle part and two flaring ends, the baffle is a mesh plate, and the first conveying belt and the second conveying belt are of belt or chain plate type structures.
Further, the below of rotatory drip washing container is provided with drip washing repairing agent recovery unit, drip washing repairing agent recovery unit includes that mud collection container, repairing agent regeneration container and repairing agent return the liquid subassembly, mud collection container sets up under rotatory drip washing container, just mud collection container collects the mud solution that rotatory drip washing container both ends flow, at least one supernatant circulation mouth has been seted up on the wall body that mud collection container is close to the top, the adjacent mud collection container of repairing agent regeneration container sets up, just repairing agent regeneration container passes through supernatant circulation mouth and mud collection container's inner chamber intercommunication, the spraying assembly passes through repairing agent return the liquid subassembly and the inner chamber intercommunication of repairing agent regeneration container.
Furthermore, a filter plate is arranged in the inner cavity of the repairing agent regeneration container, and the filter plate is arranged corresponding to the supernatant fluid flow port and is positioned below the supernatant fluid flow port; and supernatant in the slurry collection container flows to the filter plate through the supernatant flow port and is filtered by the filter plate.
Further, the direction subassembly includes pivot and baffle, pivot perpendicular to conveying face sets up on soil discharging device's feed inlet, the baffle uses the pivot to rotate the setting as the axis, just the baffle is rotatable to the direction of transfer of parallel or perpendicular to second conveyer belt.
A soil remediation method of circulating chemical leaching comprises the following steps:
s1: the crushed and impurity-removed soil particles are conveyed to a conveying surface of a rotary conveying device through a soil feeding device, a partition plate in a guide assembly is plugged between a soil discharging end and a soil discharging device at the moment, and the soil particles conveyed to the rotary conveying device pass through an inner cavity of a rotating rotary leaching container along the conveying direction;
s2: after the soil is sprayed by the spraying assembly, slurry is formed and flows down in the rotary drum, slurry solution is intercepted in each temporary storage area to be stored and is transferred upwards along with the rotation of the rotary drum, and the slurry transferred to the conveying surface of the rotary conveying device flows to the conveying surface again under the action of gravity; under the continuous rotation of the rotary conveying device, part of the slurry flows down into the rotary drum again under the action of the spraying assembly, and is circularly leached by the rotary drum;
s3: another part of the mud is conveyed to the next rotary leaching container along with the rotary conveying device, and the step S2 is circulated;
s4: repairing solution and partial slurry in the slurry solution in the rotary drum seep outwards through meshes on the baffle plate, flow into the slurry collection container after being collected by the guide plate, precipitate supernatant after the slurry solution in the slurry collection container is statically precipitated, flow into the repairing agent regeneration container through the supernatant fluid circulation port, filter again through the filter plate, react with the regenerating agent to form a regenerated repairing agent, and spray and wash soil particles again through the repairing agent liquid return component and the spray component;
s5: after the preset time of circulation, the partition plate in the guide assembly rotates for 90 degrees to the direction perpendicular to the conveying direction of the second conveying belt and is blocked on the conveying path, the washed soil slurry flows to the soil discharging device from the soil discharging end, and one period is finished.
Has the advantages that: the invention continuously sprays, leaches and repairs the entering soil particles through the rotary transmission device which circularly rotates in an annular way, and circularly and repeatedly rotates, mixes and leaches the leached soil through the rotary leaching container, thereby leaching and repairing the soil particles to the maximum extent; and through the rotary conveying device, an infinitely prolonged leaching path can be realized in a limited space, and the occupied area of the equipment on the space can be greatly reduced while sufficient leaching is ensured.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a perspective view of the overall structure of the present invention;
FIG. 4 is a top view of the overall structure of the present invention;
FIG. 5 is a schematic view of the overall structure of the present invention in half section A-A;
FIG. 6 is a schematic view of the overall structure of the present invention in half section from B-B.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 6, a soil remediation system with circulating chemical leaching comprises a soil feeding device 1, a rotary conveyer 3, a spraying component 4, a rotary leaching container 5, a guiding component 6 and a soil discharging device 2, wherein the soil feeding device 1 and the soil discharging device 2 are both conveyer belt mechanisms, the rotary conveyer 3 is a flat annular conveyer structure with a bearing surface facing upwards, the rotary conveyer 3 comprises a soil feeding end 11 and a soil discharging end 12 which are symmetrically arranged, the connection line of the soil feeding end 11 and the soil discharging end 12 is perpendicular to the central rotation axis, the soil feeding device 1 is arranged corresponding to the soil feeding end 11 and feeds soil particles to the rotary conveyer 3, the soil particles are conveyed on the rotary conveyer 3 and then enter the soil discharging device 2 through the soil discharging end 12, the soil discharging device 2 is arranged corresponding to the soil discharging end 12, the drenched soil on the rotary conveying device 3 is output, the guide assembly 6 is arranged on the soil discharging end 12, and the guide assembly 6 blocks or is communicated with a material conveying channel between the soil discharging end 12 and the soil discharging device 2; the guide assembly 6 comprises a rotating shaft 27 rotatably arranged on the bracket and a partition plate 28 arranged on the rotating shaft, the rotating shaft is perpendicular to the conveying surface and arranged on the feeding hole of the soil discharging device 2, the partition plate 28 is rotatably arranged by taking the rotating shaft 27 as an axis, and the partition plate can be rotated to be parallel to or perpendicular to the conveying direction of the second conveying belt 22; that is, the partition 28 can selectively block or conduct the conveying path of the rotary conveyer 3 by the rotation of the rotating shaft 27, and the partition 28 serves as a guide for the flow direction of the soil after remediation.
The rotary leaching containers 5 are arranged at intervals along the rotating direction of the rotary conveying device 3, the rotary conveying device 3 penetrates through the inner cavity of the rotary leaching container 5 along the rotating axis direction of the rotary leaching container, a spraying assembly 4 is arranged in the inner cavity of the rotary leaching container 5, the spraying assembly 4 comprises a plurality of spraying heads arranged along the conveying direction, and the spraying assembly 4 sprays and leaches the repairing agent on the conveying surface of the rotary conveying device 3 passing through the inner cavity of the rotary leaching container 5; the crushed and impurity-removed soil particles are conveyed to the conveying surface of the rotary conveying device 3 through the soil feeding device 1, the partition plate 28 in the guide assembly 6 is plugged between the soil discharging end 12 and the soil discharging device 2 at the moment, and the soil particles conveyed to the rotary conveying device 3 pass through the inner cavity of the rotary leaching container 5 in the conveying direction; the sprayed soil forms slurry, the slurry flows downwards from the conveying surface and falls into the inner cavity of the rotary leaching container 5, then the slurry is transferred upwards along with the rotation of the rotary leaching container 5, and the slurry transferred to the conveying surface of the rotary conveying device 3 flows to the conveying surface again under the action of gravity; under the continuous rotation of the rotary conveying device, part of the slurry flows down into the rotary drum again under the action of the spraying assembly, and is circularly leached by the rotary drum; and the other part of the slurry is conveyed to the next rotary leaching container 5 along with the rotary conveying device 3, and is subjected to circulating mixing and leaching repair in the rotary leaching containers 5 through the rotary conveying device in sequence.
The rotary transmission device 3 which circularly rotates in an annular manner is used for continuously spraying, leaching and repairing the entering soil particles, and the rotary leaching container 5 is used for circularly and repeatedly rotating, mixing and leaching the leached soil again, so that the soil particles can be leached and repaired to the maximum extent; and through the rotary conveying device, an infinitely prolonged leaching path can be realized in a limited space, and the occupied area of the equipment on the space can be greatly reduced while sufficient leaching is ensured.
As shown in fig. 2 and fig. 6, the rotary leaching container 5 comprises a rotary drum 13 with two open ends, an annular baffle plate 14 and a plurality of mud lifting plates 16, wherein the two baffle plates 14 are respectively and coaxially arranged on the two open ends of the rotary drum 13, the plurality of mud lifting plates 16 are circumferentially arranged on the inner wall of the rotary drum 13 with the rotation axis as the axis, and the mud lifting plates 16 are arranged at intervals of the spraying assembly 4, so that the mud lifting plates 16 can not interfere with the spraying assembly when the rotary drum 13 rotates, and the mud lifting plates 16 and the inner wall of the rotary drum 13 form a temporary mud storage area; the mud within the bowl 13 is transferred from the bottom of the bowl 13 to the top of the bowl 13 by the rotation of the mud lift plate 16. The mud lifting plate 16 is a plate-shaped structure, the mud lifting plate 16 and the rotary drum are arranged in an included angle in the radial direction, and the mud lifting plate 16 is obliquely arranged along the same side of the rotation direction, so that mud can be kept in an area between the mud lifting plate 16 and the wall of the rotary drum, the mud is lifted, the mud at the bottom is re-operated to the upper part of the conveying surface through the mud lifting plate 16, the structure is simple, and the adhesion of the mud can also be reduced.
The present embodiment includes two drums 13 disposed adjacently in a direction perpendicular to the axis of the drums, the outer rings of the two drums 13 are provided with ring gears 31, and the area between the two drums is provided with a driving wheel 29 driven by a driving motor 30, and the driving wheel 29 is engaged with the two ring gears 31, respectively, to rotate the two drums.
As shown in fig. 3 and 4, the rotary conveyor 3 includes two first conveyor belts 21 arranged in parallel and two second conveyor belts 22 arranged in parallel, the two first conveyor belts 21 respectively pass through the rotary rinsing container 5 along the rotation axis of the rotary rinsing container 5, the two second conveyor belts 22 are respectively arranged between the two first conveyor belts, the conveying direction of the second conveyor belts 22 is perpendicular to the conveying direction of the first conveyor belts 21, and the two second conveyor belts 22 are respectively connected with the two first conveyor belts 21 end to form a closed loop of circular conveying. The conveying directions of the soil feeding device 1 and the soil discharging device 2 are respectively perpendicular to the conveying directions of the two second conveying belts 22, and the two groups of first conveying belts 21 and the two second conveying belts 22 are sequentially connected end to form a one-way rotary conveying path.
The rotary drum 13 is of a cylindrical structure with a thin middle part and two flared ends, so that after the rotary drum is rotated to receive slurry, a repairing agent solution overflows downwards, the baffle 14 is a mesh plate, and the first conveyor belt 21 and the second conveyor belt 22 are of belt or chain plate type structures.
As shown in fig. 4, 5 and 6, an elution repairing agent recycling device is arranged below the rotary elution container 5, the elution repairing agent recycling device includes a slurry collecting container 7, a repairing agent regeneration container 8 and a repairing agent return component, the slurry collecting container 7 is arranged right below the rotary elution container 5, the slurry collecting container 7 collects slurry solution flowing out of two ends of the rotary elution container, at least one supernatant fluid circulation port 17 is formed in a wall body of the slurry collecting container 7 close to the top end, the repairing agent regeneration container 8 is arranged adjacent to the slurry collecting container 7, the repairing agent regeneration container 8 is communicated with an inner cavity of the slurry collecting container 7 through the supernatant fluid circulation port 17, and the spray component 4 is communicated with the inner cavity of the repairing agent regeneration container 8 through the repairing agent return component. A filter plate 18 is further arranged in the inner cavity of the repairing agent regeneration container 8, and the filter plate 18 is arranged corresponding to the supernatant fluid flow port 17 and is positioned below the supernatant fluid flow port 17; the supernatant in the slurry collection container 7 flows to the filter plate 18 through the supernatant flow port 17 and is filtered by the filter plate 18. Repairing solution and partial slurry in the slurry solution in the rotary drum 13 seep outwards through meshes on the baffle plate 14, and flow into the slurry collection container 7 after being collected by the guide plate 19, the slurry solution in the slurry collection container 7 is statically precipitated to separate out supernatant, the supernatant flows into the repairing agent regeneration container 8 through the supernatant flow opening 17 and is filtered again through the filter plate 18, and the filtered supernatant reacts with a regenerating agent to form a regenerated repairing agent, wherein the regenerating agent is a ferro-manganese bimetallic oxide modified porous adsorption material with strong adsorption capacity on metals. The regenerated repairing agent is sprayed and leached again through the repairing agent liquid returning component and the spraying component 4; the waste of resources is reduced by recycling the repairing agent.
The liquid subassembly is returned to prosthetic agent is including the drain pipe 23 of the inner chamber of intercommunication prosthetic agent regeneration container 8, the feed liquor end at the pump body 26 is connected to the play liquid end of drain pipe 23, the play liquid end intercommunication of the pump body 26 has liquid return pipe 25, just the other end and the individual spray assembly intercommunication of liquid return pipe 25 return the liquid subassembly through prosthetic agent and pump regenerated prosthetic agent solution again to spray assembly 4, rinse soil again and restore, through cyclic utilization soil remediation agent, can realize the maximize utilization ratio of prosthetic agent, avoid the waste of resource.
A soil remediation method of circulating chemical leaching comprises the following steps:
s1: the crushed and impurity-removed soil particles are conveyed to the conveying surface of the rotary conveying device 3 through the soil feeding device 1, the partition plate 28 in the guide assembly 6 is plugged between the soil discharging end 12 and the soil discharging device 2 at the moment, and the soil particles conveyed to the rotary conveying device 3 pass through the inner cavity of the rotary leaching container 5 in the conveying direction;
s2: after the soil is sprayed by the spraying component 4, slurry is formed and flows down in the rotary drum 13, slurry solution is intercepted in each temporary storage area to be stored and is transferred upwards along with the rotation of the rotary drum 13, and the slurry transferred to the conveying surface of the rotary conveying device 3 flows to the conveying surface again under the action of gravity; under the continuous rotation of the rotary conveying device, part of the slurry flows down into the rotary drum again under the action of the spraying assembly, and is circularly leached by the rotary drum;
s3: another part of the slurry is carried with the carousel 3 to the next rotating washing container 5 and the step S2 is repeated;
s4: repairing solution and partial slurry in the slurry solution in the rotary drum 13 seep outwards through meshes on the baffle plate 14, and flow into the slurry collection container 7 after being collected by the guide plate 19, the slurry solution in the slurry collection container 7 is statically precipitated to separate out supernatant, the supernatant flows into the repairing agent regeneration container 8 through the supernatant flow port 17 and is filtered again through the filter plate 18, the filtered supernatant reacts with the regenerating agent to form a regenerated repairing agent, and soil particles are sprayed and washed again through the repairing agent liquid return assembly and the spraying assembly 4;
s5: after a predetermined time of the cycle, the partition 28 in the guide assembly 6 is rotated 90 ° to be perpendicular to the conveying direction of the second conveyor belt 22 and blocked on the conveying path, and the washed soil slurry flows from the soil discharging end to the soil discharging device 2, and one cycle is finished.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. The utility model provides a soil repair system of circulating chemical leaching which characterized in that: comprises a soil feeding device (1), a rotary conveying device (3), a spraying component (4), a rotary leaching container (5), a guide component (6) and a soil discharging device (2), the rotary conveying device (3) is a horizontal annular conveying structure, the rotary conveying device (3) comprises a soil feeding end (11) and a soil discharging end (12), the soil feeding device (1) is arranged corresponding to the soil feeding end (11), and soil particles are fed into the rotary conveying device (3), the soil discharging device (2) is arranged corresponding to the soil discharging end (12), and outputs the washed soil on the rotary conveying device (3), the guide component (6) is arranged on the soil discharging end (12), the guide assembly (6) is used for obstructing or communicating a material conveying channel between the soil discharging end (12) and the soil discharging device (2);
the rotary leaching containers (5) are arranged at intervals along the rotating direction of the rotary conveying device (3), the rotary conveying device (3) penetrates through the inner cavity of the rotary leaching container (5) along the rotating axis direction of the rotary leaching container, a spraying assembly (4) is arranged in the inner cavity of the rotary leaching container (5), and the spraying assembly (4) sprays and leaches the repairing agent on the conveying surface of the rotary conveying device (3) passing through the inner cavity of the rotary leaching container (5);
the rotary leaching container (5) comprises a rotary drum (13) with two open ends, an annular baffle plate (14) and a slurry lifting plate (16), the two baffle plates (14) are respectively and coaxially arranged at the two open ends of the rotary drum (13), a plurality of slurry lifting plates (16) are circumferentially arranged on the inner wall of the rotary drum (13) by taking a rotary axis as an axis, the slurry lifting plates (16) are arranged at intervals of the spraying assembly (4), and the slurry lifting plates (16) and the inner wall of the rotary drum (13) form a temporary slurry storage area; the slurry within the bowl (13) is transferred from the bottom of the bowl (13) to the top of the bowl (13) by rotation of the slurry lift plate (16).
2. The soil remediation system of cyclic chemical leaching of claim 1, wherein: the rotary conveying device (3) comprises two first conveying belts (21) arranged in parallel and two second conveying belts (22) arranged in parallel, the two first conveying belts (21) penetrate through the rotary leaching container (5) along the rotation axis of the rotary leaching container (5), the two second conveying belts (22) are arranged between the two first conveying belts respectively, the conveying direction of the second conveying belts (22) is perpendicular to the conveying direction of the first conveying belts (21), and the two second conveying belts (22) are connected with the two first conveying belts (21) end to form a closed loop of annular conveying.
3. The soil remediation system of cyclic chemical leaching of claim 2, wherein: the rotary drum (13) is of a cylindrical structure with the middle thin and two ends flaring, the baffle (14) is a mesh plate, and the first conveyor belt (21) and the second conveyor belt (22) are of belt or chain plate type structures.
4. The soil remediation system of cyclic chemical leaching of claim 3, wherein: an elution repairing agent recovery device is arranged below the rotary elution container (5), the elution repairing agent recovery device comprises a slurry collecting container (7), a repairing agent regeneration container (8) and a repairing agent liquid return assembly, the mud collecting container (7) is arranged right below the rotary leaching container (5), and the mud collecting container (7) collects the mud solution flowing out of the two ends of the rotary leaching container, the wall body of the mud collecting container (7) close to the top end is provided with at least one supernatant fluid circulating port (17), the repairing agent regeneration container (8) is arranged adjacent to the slurry collecting container (7), and the repairing agent regeneration container (8) is communicated with the inner cavity of the slurry collection container (7) through a supernatant fluid circulation port (17), the spraying assembly (4) is communicated with the inner cavity of the repairing agent regeneration container (8) through the repairing agent liquid returning assembly.
5. The soil remediation system of cyclic chemical leaching of claim 4, wherein: a filter plate (18) is further arranged in the inner cavity of the repairing agent regeneration container (8), and the filter plate (18) is arranged corresponding to the supernatant fluid circulation port (17) and is positioned below the supernatant fluid circulation port (17); supernatant in the mud collection container (7) flows to a filter plate (18) through a supernatant flow opening (17) and is filtered by the filter plate (18).
6. The soil remediation system of cyclic chemical leaching of claim 5, wherein: the direction subassembly (6) are including pivot (27) and baffle (28), the pivot perpendicular to conveying face sets up on the feed inlet of soil discharging device (2), baffle (28) use pivot (27) to rotate the setting as the axis, just the baffle is rotatable to the direction of transfer of parallel or perpendicular to second conveyer belt (22).
7. The soil remediation method of a circulating chemically rinsed soil remediation system of claim 6, wherein: the method comprises the following steps:
s1: the crushed and impurity-removed soil particles are conveyed to the conveying surface of the rotary conveying device (3) through the soil feeding device (1), the partition plate (28) in the guide assembly (6) is plugged between the soil discharging end (12) and the soil discharging device (2), and the soil particles conveyed to the rotary conveying device (3) pass through the inner cavity of the rotary leaching container (5) along the conveying direction;
s2: after the soil is sprayed by the spraying assembly (4), slurry is formed and flows down in the rotary drum (13), slurry solution is intercepted in each slurry temporary storage area and is transferred upwards along with the rotation of the rotary drum (13), and the slurry transferred to the conveying surface of the rotary conveying device (3) flows to the conveying surface again under the action of gravity; under the continuous rotation of the rotary conveying device, part of the slurry flows down into the rotary drum again under the action of the spraying assembly, and is circularly leached by the rotary drum;
s3: another part of the mud is conveyed to the next rotary leaching container (5) along with the rotary conveying device (3), and the step S2 is circulated;
s4: repairing solution and partial slurry in slurry solution in the rotary drum (13) seep outwards through meshes on the baffle plate (14), and flow into the slurry collection container (7) after being collected by the guide plate (19), the slurry solution in the slurry collection container (7) is statically precipitated to separate out supernatant, the supernatant flows into the repairing agent regeneration container (8) through the supernatant flow opening (17), and is filtered again through the filter plate (18), the filtered supernatant reacts with the regenerating agent to form the regeneration repairing agent, and soil particles are sprayed and washed again through the repairing agent return assembly and the spraying assembly (4);
s5: after the preset time of circulation, the partition plate (28) in the guide assembly (6) rotates for 90 degrees to be vertical to the conveying direction of the second conveying belt (22) and is blocked on the conveying path, the washed soil slurry flows from the soil discharging end to the soil discharging device (2), and one period is finished.
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| CN201910364674.2A CN110052490B (en) | 2019-04-30 | 2019-04-30 | Circulating chemical leaching soil remediation system and remediation method thereof |
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| CN201910364674.2A CN110052490B (en) | 2019-04-30 | 2019-04-30 | Circulating chemical leaching soil remediation system and remediation method thereof |
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| CN110052490A CN110052490A (en) | 2019-07-26 |
| CN110052490B true CN110052490B (en) | 2021-09-28 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863476A (en) * | 1996-01-16 | 1999-01-26 | Wier; Keith E. | Apparatus and method for compacting and stabilizing granular materials containing hazardous materials |
| JP2001300507A (en) * | 2000-04-21 | 2001-10-30 | Taisei Corp | Method for recovering toxic chemicals in soil or the like |
| CN202683593U (en) * | 2012-06-13 | 2013-01-23 | 广西来宾市天仁生物有机肥有限责任公司 | Leaching device for treating heavy metal in household garbage by citric acid |
| CN103316903A (en) * | 2013-03-21 | 2013-09-25 | 珠海市中科信息技术开发有限公司 | Method for repairing heavy metal polluted soil by chemical combined leaching |
| CN103706625A (en) * | 2013-12-26 | 2014-04-09 | 江苏盖亚环境工程有限公司 | Efficient soil repair system |
| CN206286327U (en) * | 2016-11-24 | 2017-06-30 | 深圳市世房环境建设（集团）有限公司 | A kind of municipal afforestation soil environmental protection prosthetic device |
| CN109304365A (en) * | 2018-12-03 | 2019-02-05 | 南京迪天高新产业技术研究院有限公司 | A kind of Working solution prescription of electro reclamation antimony pollution soil and application |
-
2019
- 2019-04-30 CN CN201910364674.2A patent/CN110052490B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5863476A (en) * | 1996-01-16 | 1999-01-26 | Wier; Keith E. | Apparatus and method for compacting and stabilizing granular materials containing hazardous materials |
| JP2001300507A (en) * | 2000-04-21 | 2001-10-30 | Taisei Corp | Method for recovering toxic chemicals in soil or the like |
| CN202683593U (en) * | 2012-06-13 | 2013-01-23 | 广西来宾市天仁生物有机肥有限责任公司 | Leaching device for treating heavy metal in household garbage by citric acid |
| CN103316903A (en) * | 2013-03-21 | 2013-09-25 | 珠海市中科信息技术开发有限公司 | Method for repairing heavy metal polluted soil by chemical combined leaching |
| CN103706625A (en) * | 2013-12-26 | 2014-04-09 | 江苏盖亚环境工程有限公司 | Efficient soil repair system |
| CN206286327U (en) * | 2016-11-24 | 2017-06-30 | 深圳市世房环境建设（集团）有限公司 | A kind of municipal afforestation soil environmental protection prosthetic device |
| CN109304365A (en) * | 2018-12-03 | 2019-02-05 | 南京迪天高新产业技术研究院有限公司 | A kind of Working solution prescription of electro reclamation antimony pollution soil and application |
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| CN110052490A (en) | 2019-07-26 |
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