CN115569978A - Eccentric micro-channel system for chemical leaching of cohesive soil - Google Patents
Eccentric micro-channel system for chemical leaching of cohesive soil Download PDFInfo
- Publication number
- CN115569978A CN115569978A CN202211235858.7A CN202211235858A CN115569978A CN 115569978 A CN115569978 A CN 115569978A CN 202211235858 A CN202211235858 A CN 202211235858A CN 115569978 A CN115569978 A CN 115569978A
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- stirring
- dosing
- eccentric micro
- mixing
- channel system
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- 238000002386 leaching Methods 0.000 title claims abstract description 34
- 239000000126 substance Substances 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 title claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 99
- 238000002156 mixing Methods 0.000 claims abstract description 32
- 239000004927 clay Substances 0.000 claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003814 drug Substances 0.000 abstract description 12
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000013019 agitation Methods 0.000 description 10
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
- B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses an eccentric micro-channel system for chemical leaching of cohesive soil. The system comprises a workbench, a mixing and stirring device, a plurality of dosing and stirring devices and a screening device, wherein the mixing and stirring device, the dosing and stirring devices and the screening device are all arranged on the workbench; wherein, add medicine agitating unit and have one and add the medicine agitator tank, the rear side top that adds the medicine agitator tank has an entry, and the front side below has a lower export, has a horizontally sieve on the screening plant, and each entry all is linked together with mixing agitating unit's front side lower part on each of each medicine agitating unit, and each export is all close to the sieve and is located the top of sieve down. According to the eccentric micro-through system for chemical leaching of the clay, disclosed by the invention, the clay leaching system for feeding, stirring, dosing, leaching, water recycling and the like is completed through the integrated device, and an eccentric micro-through technology is adopted, so that chemical cleaning can be effectively carried out on the clay, and the problem of poor clay leaching effect of the traditional leaching is solved.
Description
Technical Field
The invention relates to the field of soil remediation equipment, in particular to an eccentric micro-channel system for chemical leaching of cohesive soil.
Background
When the polluted soil is repaired, the traditional chemical leaching process mainly comprises the step of screening and washing the soil in a grading way, namely, surface pollutants are washed out by adopting the modes of grading, screening, washing and the like, wherein only granular materials are washed out cleanly in the leaching process, and the pollutants are still enriched on clay. In addition, the traditional chemical leaching process uses a medicament reaction, but due to the nature of clay, a lot of pollutants are still enriched in the clay, and after being subjected to plate-frame filter pressing, the pollutants enter the clay again to cause clay pollution. Therefore, the traditional process is generally only suitable for soil such as sandy soil and is not suitable for clay.
Disclosure of Invention
In order to solve the problems, the invention provides an eccentric micro-channel system for chemical leaching of cohesive soil.
According to one aspect of the invention, an eccentric micro-channel system for chemical leaching of cohesive soil is provided, which comprises a workbench, a mixing and stirring device, a plurality of dosing and stirring devices and a screening device, wherein the mixing and stirring device, the dosing and stirring devices and the screening device are all arranged on the workbench; the dosing and stirring device is provided with a dosing and stirring box, an upper inlet is arranged above the rear side of the dosing and stirring box, a lower outlet is arranged below the front side of the dosing and stirring box, an eccentric micro-communicating device is arranged in the dosing and stirring device, a horizontal sieve plate is arranged on the sieving device, each upper inlet of each dosing and stirring device is communicated with the lower part of the front side of the mixing and stirring device, and each lower outlet is close to the sieve plate and is positioned above the sieve plate.
The eccentric micro-communication system for chemically leaching the cohesive soil disclosed by the invention is a clay leaching system for feeding, stirring, dosing, leaching, water recycling and the like, is completed through an integrated device, can effectively perform chemical cleaning on clay by adopting an eccentric micro-communication technology, solves the problem of poor clay leaching effect of the traditional leaching, and is compact in equipment and high in stability.
In some embodiments, the interior of the table is hollow. The water treatment device has the beneficial effects that the pretreatment equipment of water and the pretreated water can be placed in the workbench.
In some embodiments, the bottom of the table has a plurality of rollers. The beneficial effect is that the flexibility of the whole system is improved.
In some embodiments, the mixing and stirring device has a soil inlet at the top, a mixing and stirring structure inside, and a plurality of discharge ports at the lower part of the front side, wherein each discharge port is respectively communicated with each upper inlet of each drug-adding and stirring device. It is advantageous to describe the structure of the mixing and stirring device.
In some embodiments, the dosing agitation device further comprises a motor and an agitation shaft, the motor is mounted above the dosing agitation tank, and the agitation shaft and the eccentric micro-penetration device are both located inside the dosing agitation tank; the top end of the stirring shaft is connected with the motor, and the bottom end of the stirring shaft is connected with the eccentric micro-communicating device. The medicine adding and stirring device has the advantages that the structure of the medicine adding and stirring device is described.
In some embodiments, a plurality of stirring blades extend out of the periphery of the upper part, the middle part and the lower part of the stirring shaft. It is advantageous in that the structure of the stirring shaft is described.
In some embodiments, the top of the eccentric micro-device is eccentrically connected with the bottom end of the stirring shaft, and the side surface of the eccentric micro-device is connected with a plurality of vertical sweeping plates. It is advantageous to describe the structure of the eccentric micro-device.
In some embodiments, the bottom of the eccentric micro-device is connected to a speed reducer, and the speed reducer is located below the dosing agitator tank. The medicine-adding stirring device has the advantages that the specific structure of the medicine-adding stirring device is further described.
In some embodiments, the screening device comprises a base frame to which the corners of the screen deck are mounted by a plurality of springs, respectively. It is advantageous to describe the construction of the screening device.
In some embodiments, the sieve plate is provided with a plurality of partition plates side by side, a mounting plate is jointly mounted on the top of each partition plate, and a plurality of vibrating machines are mounted on the mounting plate side by side. It is advantageous to further describe the specific construction of the screening device.
Drawings
FIG. 1 is a schematic structural diagram of an eccentric micro-channel system for chemical leaching of clay according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the mixing device shown in FIG. 1;
FIG. 3 is a schematic structural view of the dosing and stirring device shown in FIG. 1;
FIG. 4 is a schematic front side view of the dosing and stirring device shown in FIG. 3;
FIG. 5 is a schematic diagram of the rear side structure of the dosing and stirring device shown in FIG. 3;
FIG. 6 is a schematic view of the internal structure of the screening device of FIG. 1;
fig. 7 is a flow chart of the operation of the eccentric micro-channel system for chemical leaching of clay shown in fig. 1.
In the figure: the device comprises a workbench 1, a mixing and stirring device 2, a dosing and stirring device 3, a screening device 4, a roller 11, a soil inlet 21, a mixing and stirring structure 22, a discharge port 23, a dosing and stirring box 31, an upper inlet 32, a lower outlet 33, a motor 34, a stirring shaft 35, an eccentric micro-device 36, a stirring blade 37, a sweeping plate 38, a speed reducer 39, a screening plate 41, a base frame 42, a spring 43, a separating plate 44, a mounting plate 45 and a vibrator 46.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically shows a structure of an eccentric micro-channel system for chemical leaching of clay according to an embodiment of the present invention, fig. 2 shows a structure of a mixing and stirring apparatus of fig. 1, fig. 3 shows a front side structure of a medicated stirring apparatus of fig. 1, fig. 4 shows a rear side structure of the medicated stirring apparatus of fig. 3, fig. 5 shows an internal structure of the medicated stirring apparatus of fig. 3, and fig. 6 shows a structure of a sieving apparatus of fig. 1. As shown in figures 1-6, the system comprises a step-shaped workbench 1, and other main mechanisms, including a mixing and stirring device 2, a plurality of dosing and stirring devices 3, a screening device 4 and the like, are directly arranged on each step of the workbench 1 and are sequentially lowered. The work table 1 is hollow inside and can be used for placing some equipment, such as pretreatment equipment of water, pretreated water and the like.
Preferably, the bottom of the table 1 has a plurality of rollers 11, which facilitate the movement of the entire system.
The mixing and stirring device 2 is installed on the top of the step of the working table 1, wherein the mixing and stirring device 2 is hollow, has a soil inlet 21 with a large size on the top, has a mixing and stirring structure 22 composed of a rotating rod, a blade and the like in the inside thereof, and has a plurality of discharge ports 23 arranged side by side in the lower part of one side (which is set as the front side and the opposite side is set as the rear side) of the mixing and stirring device 2.
The dosing agitation devices 3 are installed side by side on the side of the step of the table 1, and specifically, the dosing agitation device 3 has a dosing agitation tank 31, the rear lower portion of the dosing agitation tank 31 is connected to the table 1, and an upper inlet 32 is provided above the rear side of the dosing agitation tank 31, and a lower outlet 33 is provided below the front side. Wherein, the upper inlet 32 of each medicine adding stirring tank 31 is respectively communicated with a plurality of discharge ports 23 of the mixing stirring device 2.
The dosing stirring device 3 further comprises a motor 34, a stirring shaft 35, an eccentric micro device 36 and a speed reducer 39, wherein the motor 34 is installed above the dosing stirring box 31, the stirring shaft 35 and the eccentric micro device 36 are both located inside the dosing stirring box 31, and the speed reducer 39 is located below the dosing stirring box 31. Wherein, the rotor of motor 34 is vertical downwards and is connected with the top of (mixing) shaft 35 through a shaft coupling, and all stretch out around the upper portion, middle part and the lower part of (mixing) shaft 35 has many stirring vanes 37, and the bottom of (mixing) shaft 35 is connected with eccentric little device 36 that leads to, and the bottom that eccentric little device 36 that leads to is connected with speed reducer 39.
The eccentric micro device 36 is a disc with its top eccentrically connected to the bottom end of the stirring shaft 35, i.e. the stirring shaft 35 is not connected to the top center of the eccentric micro device 36, and a plurality of vertical sweeping plates 38 are connected to the side of the eccentric micro device 36. Wherein, the eccentric micro device 36 can extrude and discharge the mixed soil in the medicine adding stirring box 31 with small flux.
The screening arrangement 4 mainly comprises a base frame 42 and a horizontal screening deck 41, wherein the base frame 42 is mounted on the table 1 and the corners of the screening deck 41 are mounted on the base frame 42 by means of a number of springs 43, respectively. Wherein, the lower outlet 33 of each dosing stirring box 31 is close to the sieve plate 41 and is positioned above the sieve plate 41.
In addition, a plurality of partition plates 44 are arranged on the screen plate 41 side by side to divide the screen plate 41 into a plurality of different screening areas, a mounting plate 45 is commonly mounted on the top of each partition plate 44, a plurality of vibrating machines 46 are mounted on the mounting plate 45 side by side, and the vibrating machines 46 can drive the screen plate 41 to screen. Wherein, the number and the position of each medicine adding and stirring device 3, each screening area and each vibrator 46 are respectively corresponding.
Fig. 7 shows a flow chart of an eccentric micro-channel system for chemical elution of clay in fig. 1. As shown in fig. 7, this system needs to be used in combination with a chemical cleaning chemical tank, a clean water tank, a filter press apparatus, a water treatment apparatus, and the like, and the main steps for using this system are as follows.
1. The contaminated soil is sieved and crushed and then is introduced into the mixing and stirring device 2 from the soil inlet 21, meanwhile, clear water is added and is stirred by using the mixing and stirring structure 22, and the stirred soil is introduced into the dosing and stirring boxes 31 of the dosing and stirring devices 3.
2. Chemical cleaning agents are led into each dosing stirring box 31 from the dosing box through a dosing pump (wherein clear water can be provided for the dosing box to dispense medicines), the motor 34 operates to drive the stirring shaft 35 and the stirring blades 37, the chemical cleaning agents are stirred in a leaching mode, the washed soil is extruded and discharged in a small flux mode through the eccentric micro-device 36, and the extruded and discharged soil falls onto the sieve plate 41 of the sieving device 4.
3. The clear water that sprays from the clear water tank sprays carries out the high pressure and sprays to cooperate screening plant 4 to carry out wet screening to the soil of ejection of compact, wash out the medicament on soil surface totally, thereby obtain clean soil.
4. And introducing the leaching wastewater subjected to wet screening into a filter pressing device for extrusion and filtration to obtain mud cakes and clear liquid, then sending the mud cakes into the mixing and stirring device 2 for treatment again, and introducing the clear liquid into a water treatment device for treatment.
5. The water treatment equipment divides the clear liquid treatment into clear water and sludge, wherein the clear water can be introduced into the clear water tank for recycling.
What has been described above are merely some of the embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. An eccentric micro-channel system for chemical leaching of cohesive soil is characterized in that: the device comprises a workbench (1), a mixing and stirring device (2), a plurality of dosing and stirring devices (3) and a screening device (4), wherein the mixing and stirring device (2), the dosing and stirring devices (3) and the screening device (4) are all arranged on the workbench (1); the dosing and stirring device (3) is provided with a dosing and stirring box (31), an upper inlet (32) is arranged above the rear side of the dosing and stirring box (31), a lower outlet (33) is arranged below the front side of the dosing and stirring box, an eccentric micro-passing device (36) is arranged inside the dosing and stirring box, a horizontal sieve plate (41) is arranged on the sieving device (4), each upper inlet (32) of each dosing and stirring device (3) is communicated with the lower part of the front side of the mixing and stirring device (2), and each lower outlet (33) is close to the sieve plate (41) and is positioned above the sieve plate (41).
2. The eccentric micro-channel system for chemical leaching of clay according to claim 1, wherein: the inside of the workbench (1) is hollow.
3. The eccentric micro-channel system for chemical leaching of clay according to claim 1, wherein: the bottom of the working table (1) is provided with a plurality of rollers (11).
4. The eccentric micro-channel system for chemical leaching of clay according to claim 1, wherein: the top of the mixing and stirring device (2) is provided with a soil inlet (21), the interior of the mixing and stirring device is provided with a mixing and stirring structure (22), the lower part of the front side of the mixing and stirring device is provided with a plurality of discharge ports (23), and each discharge port (23) is respectively communicated with each upper inlet (32) of each dosing and stirring device (3).
5. The eccentric micro-channel system for chemical leaching of clay, according to claim 1, wherein: the dosing stirring device (3) is also provided with a motor (34) and a stirring shaft (35), the motor (34) is arranged above the dosing stirring box (31), and the stirring shaft (35) and the eccentric micro-communicating device (36) are both positioned inside the dosing stirring box (31); the top end of the stirring shaft (35) is connected with the motor (34), and the bottom end of the stirring shaft is connected with the eccentric micro-device (36).
6. The eccentric micro-channel system for chemical leaching of clay according to claim 5, wherein: a plurality of stirring blades (37) extend out of the periphery of the upper part, the middle part and the lower part of the stirring shaft (35).
7. The eccentric micro-channel system for chemical leaching of clay according to claim 5, wherein: the top of the eccentric micro-device (36) is eccentrically connected with the bottom end of the stirring shaft (35), and the side surface of the eccentric micro-device is connected with a plurality of vertical sweeping plates (38).
8. The eccentric micro-channel system for chemical leaching of clay according to claim 7, wherein: the bottom of the eccentric micro-device (36) is connected with a speed reducer (39), and the speed reducer (39) is positioned below the dosing stirring box (31).
9. The eccentric micro-channel system for chemical leaching of clay, according to claim 1, wherein: the screening device (4) comprises a base frame (42), and the corners of the screen plate (41) are respectively arranged on the base frame (42) through a plurality of springs (43).
10. The eccentric micro-channel system for chemical leaching of clay according to claim 9, wherein: the screen plate (41) is provided with a plurality of partition plates (44) side by side, the top of each partition plate (44) is provided with a mounting plate (45) together, and the mounting plate (45) is provided with a plurality of vibrating machines (46) side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211235858.7A CN115569978B (en) | 2022-10-10 | 2022-10-10 | Eccentric micro-communication system for chemical leaching of cohesive soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211235858.7A CN115569978B (en) | 2022-10-10 | 2022-10-10 | Eccentric micro-communication system for chemical leaching of cohesive soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115569978A true CN115569978A (en) | 2023-01-06 |
| CN115569978B CN115569978B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211235858.7A Active CN115569978B (en) | 2022-10-10 | 2022-10-10 | Eccentric micro-communication system for chemical leaching of cohesive soil |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340425A (en) * | 2002-05-27 | 2003-12-02 | Hitachi Constr Mach Co Ltd | System and method for treating contaminated soil |
| KR20120064803A (en) * | 2010-12-10 | 2012-06-20 | 송원근 | Hybrid type soil washing facility and method for separation and remediation of contaminated soil |
| CN105057340A (en) * | 2015-07-31 | 2015-11-18 | 三川德青科技有限公司 | Chromium-contaminated soil different-position leaching repairing technology and device |
| KR102134251B1 (en) * | 2020-04-03 | 2020-07-15 | 박도균 | Wash purification system for contaminated soil |
| CN111644257A (en) * | 2020-06-12 | 2020-09-11 | 李维国 | Solid waste treatment equipment based on eccentric wheel mechanism is kibbling |
| CN112474771A (en) * | 2020-10-26 | 2021-03-12 | 梁艺丹 | Environmental protection soil pollution screening treatment equipment |
| CN213669182U (en) * | 2020-11-06 | 2021-07-13 | 山东芝圣堂生物科技有限公司 | Forming device of rotary granulator |
| CN113714266A (en) * | 2021-09-06 | 2021-11-30 | 煜环环境科技有限公司 | Soil ectopic restoration technical equipment and construction method thereof |
| CN217449200U (en) * | 2021-12-27 | 2022-09-20 | 广汉远航石油井控设备有限公司 | A filter screening plant for gluing thick drilling mud |
-
2022
- 2022-10-10 CN CN202211235858.7A patent/CN115569978B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340425A (en) * | 2002-05-27 | 2003-12-02 | Hitachi Constr Mach Co Ltd | System and method for treating contaminated soil |
| KR20120064803A (en) * | 2010-12-10 | 2012-06-20 | 송원근 | Hybrid type soil washing facility and method for separation and remediation of contaminated soil |
| CN105057340A (en) * | 2015-07-31 | 2015-11-18 | 三川德青科技有限公司 | Chromium-contaminated soil different-position leaching repairing technology and device |
| KR102134251B1 (en) * | 2020-04-03 | 2020-07-15 | 박도균 | Wash purification system for contaminated soil |
| CN111644257A (en) * | 2020-06-12 | 2020-09-11 | 李维国 | Solid waste treatment equipment based on eccentric wheel mechanism is kibbling |
| CN112474771A (en) * | 2020-10-26 | 2021-03-12 | 梁艺丹 | Environmental protection soil pollution screening treatment equipment |
| CN213669182U (en) * | 2020-11-06 | 2021-07-13 | 山东芝圣堂生物科技有限公司 | Forming device of rotary granulator |
| CN113714266A (en) * | 2021-09-06 | 2021-11-30 | 煜环环境科技有限公司 | Soil ectopic restoration technical equipment and construction method thereof |
| CN217449200U (en) * | 2021-12-27 | 2022-09-20 | 广汉远航石油井控设备有限公司 | A filter screening plant for gluing thick drilling mud |
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| CN115569978B (en) | 2024-06-11 |
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