CN117564071A - Ecological restoration device and method for safe utilization of mercury polluted farmland - Google Patents
Ecological restoration device and method for safe utilization of mercury polluted farmland Download PDFInfo
- Publication number
- CN117564071A CN117564071A CN202410057222.0A CN202410057222A CN117564071A CN 117564071 A CN117564071 A CN 117564071A CN 202410057222 A CN202410057222 A CN 202410057222A CN 117564071 A CN117564071 A CN 117564071A
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- Prior art keywords
- bin
- cleaning
- soil
- filtering
- pipe
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 102
- 239000002689 soil Substances 0.000 claims abstract description 86
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 45
- 238000000926 separation method Methods 0.000 claims description 24
- 238000012546 transfer Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000012216 screening Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 239000006071 cream Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims 7
- 238000001764 infiltration Methods 0.000 claims 7
- 238000000605 extraction Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 description 12
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000008763 Mercury poisoning Diseases 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- -1 and finally Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000012459 cleaning agent Substances 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
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Landscapes
- 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 safe utilization ecological restoration device for mercury polluted cultivated land and a method thereof, which relate to the technical field of ecological restoration, wherein the track of a screw conveyor pushing soil to advance is consistent all the time, but the soil is basically gathered together, the mixing effect between the soil and a removing liquid is relatively poor, but mercury metal still exists after the soil is cleaned, and the cleaning effect is not ideal.
Description
Technical Field
The invention relates to the technical field of ecological restoration, in particular to an ecological restoration device and method for safely utilizing mercury polluted farmland.
Background
The soil leaching and restoring technology is a technology for restoring soil by mixing and rubbing a certain liquid with a dissolving capability to pollutants, so that the pollutants are transferred into liquid phase and a small part of soil, and the research on the soil leaching technology is mainly focused on the treatment of organic pollution and heavy metal pollution at present. The cleaning method comprises single-stage cleaning and multi-stage cleaning according to the operation modes, and can be classified into clear water cleaning, inorganic acid cleaning, organic acid and chelating agent cleaning, surfactant cleaning, oxidant cleaning and supercritical CO2 fluid cleaning according to the different leacheate.
For this, chinese application publication No.: CN115555393a discloses a soil ecological restoration device, the rear end of the restoration box body is connected with a control handle through a push rod, one side of the interior of the restoration box body, which is close to the control handle, is provided with a restoration medicine box, the bottom of the restoration medicine box is fixed with a stirring module, the stirring module is connected with a stirring motor through a coupling, the upper end of the restoration medicine box is inlaid with an alarm module, and the alarm module is connected with a central controller; an adjusting chute is arranged at the front end of the repairing box body along the vertical direction, an adjusting module is fixed at the upper end of the adjusting chute, the adjusting module is fixedly connected with a soil turning module through a pin, and the soil turning module is connected with a stirring wheel through a gear and a rotating shaft through a speed regulating module; the front end of the repair box body is fixedly provided with a water suction pump and a repair module, the repair module is connected with a repair spray head through a shunt opening, and the repair spray head is respectively fixed at the front end of the repair box body and the upper end of the stirring wheel; the bottom of the repairing box body is fixed with a moving module which is fixedly connected with the stepping motor through a speed control box.
For this, chinese application publication No.: CN116809616a discloses a surface soil pollution cleaning and repairing device, which comprises a mobile vehicle, a frame, a feeding mechanism, a charging barrel, a cleaning and filtering mechanism and a cleaning liquid circulation and supply mechanism, wherein the rear end of the frame is connected with the front end of the mobile vehicle, the charging barrel, the cleaning and filtering mechanism and the cleaning liquid circulation and supply mechanism are all arranged in the middle of the frame, the cleaning and filtering mechanism is positioned below the charging barrel and is communicated with the charging barrel, and the feeding mechanism is arranged at the front end of the frame; the inlet end of the cleaning liquid circulation supply mechanism is connected with the cleaning liquid outlet of the cleaning and filtering mechanism, and the outlet end of the cleaning liquid circulation supply mechanism is aligned with the charging barrel and is used for conveying cleaning liquid into the charging barrel, and soil and cleaning liquid in the charging barrel fall into the cleaning and filtering mechanism; the cleaning and filtering mechanism is used for cleaning and filtering soil. The cleaning and repairing device disclosed by the invention can realize large-area cleaning and repairing of the surface layer polluted soil by moving the vehicle, and is high in soil cleaning and repairing efficiency and quite convenient to use.
At present, when heavy metal polluted soil is treated, heavy metal in the soil can be well removed through a soil cleaning mode, the cleaning mode can be suitable for soil restoration work with larger area, in the cleaning stage, a mercury metal removing liquid is added into liquid, the liquid is doped in water, the advancing track of the soil is always consistent due to the pushing of an auger, the soil is basically gathered together, the mixing effect between the soil and the removing liquid is relatively poor, the mercury metal still exists after the soil is cleaned, and the cleaning effect is not ideal.
To solve the above problems, an ecological restoration device and a method for safely utilizing mercury polluted farmland are provided.
Disclosure of Invention
The invention aims to provide an ecological restoration device and method for safely utilizing mercury polluted cultivated land, which solve the problem of unsatisfactory cleaning effect caused by the aggregation of soil in a packing auger in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the ecological restoration device for safety utilization of mercury polluted cultivated land comprises a screening machine, wherein a transfer bin is arranged on one side of the screening machine, and a purification bin is arranged on one side of the transfer bin;
the inside of transporting the storehouse is embedded with cleaning assembly, and cleaning assembly includes filtering baffle, the inside of transporting the storehouse is embedded with filtering baffle, filtering baffle is provided with two sets of, and two sets of filtering baffle divide into three spaces with transporting the inside of storehouse, and three spaces are first group filtering storehouse, washing storehouse and second group filtering storehouse respectively, the inside of transporting the storehouse still has embedded the division board, the division board separates out the motor storehouse in transporting the inside of storehouse, the internally mounted in motor storehouse has driving motor, auger subassembly is installed to driving motor's output, the inside of transporting the storehouse still installs the storage silo, sealed lid is installed on transporting the top of storehouse;
the inside of the transfer bin is also embedded with a separation frame, the upper surface of the separation frame is connected with a circulating assembly, the circulating assembly comprises a fixing frame, the upper surface of the separation frame is connected with a fixing frame, the top surface of the fixing frame is connected with a linkage rod through a shaft sleeve, the bottom end of the storage bin is connected with a guide pipe, one side of the guide pipe is connected with a connecting pipe, the storage bin is connected with the guide pipe through a connecting pipe, the guide pipe is also provided with a pressure pump, the pressure pump is used for extracting and discharging liquid, a connecting port is embedded in the fixing frame, a conducting port is formed in the connecting port, the conducting port is communicated with the guide pipe, and a filter tank is arranged on the arc-shaped surface of the fixing frame;
the inside embedding of mount has the stirring subassembly, the stirring subassembly includes the rotary drum, the inside embedding of mount has the rotary drum, it is connected with the stirring sleeve to rotate on the side of rotary drum, the inboard at the mount is embedded to the stirring sleeve, stirring telescopic surface mounting has the stirring piece, the logical groove has still been seted up to stirring telescopic surface, one side fixedly connected with transmission tooth that the rotary drum was kept away from to the stirring sleeve.
Preferably, the auger assembly is embedded in the cleaning bin, wherein the filtering bin is respectively arranged on two sides of the cleaning bin, the separation frame penetrates through the filtering bin and the cleaning bin, the separation frame is matched with the fixing frame, the inside of the filtering bin and the inside of the cleaning bin are separated into two areas, and the area which is divided on one side close to the motor bin plays a role in filtering.
Preferably, gears are arranged at two ends of the linkage rod, one group of gears are meshed with the transmission teeth, the other group of gears are meshed with the output end of the driving motor, and the transmission teeth are driven to rotate after the linkage rod is driven to rotate through rotation of the output end of the driving motor.
Preferably, the inner wall of the fixing frame is circular, the rotary drum is attached to the circular inner wall of the fixing frame, and the filtering tank positioned in the middle of the fixing frame has the function of filtering impurities.
Preferably, the inside embedding of storage silo has the interpolation subassembly, the interpolation subassembly includes solid-state cleaning cream, driving motor's inside embedding has solid-state cleaning cream, the inside embedding of storage silo has the bottom plate, solid-state cleaning cream is placed at the upper surface of bottom plate.
Preferably, the bottom plate is internally provided with a penetration hole, the penetration hole is in a horn shape, the upper end opening of the penetration hole is small, and the lower end opening is large.
Preferably, the inner wall of the conduit is provided with a heating wire, the heating wire heats the cleaning liquid, the bottom end of the storage bin is also provided with a permeation tube, the permeation tube corresponds to the permeation hole, and the bottom end of the permeation tube is embedded into the conduit.
Preferably, an exhaust pipe is further embedded in the storage bin, and the tail end of the exhaust pipe is connected with the purification bin.
Preferably, the heating wire is added to raise the temperature of the liquid in the conduit, the temperature is raised to generate steam, the steam is led into the storage bin through the connecting pipe, and the bottom of the solid cleaning paste begins to melt through the hot steam.
The method for safely utilizing the ecological restoration device for the mercury-polluted farmland comprises the following ecological restoration operation steps:
firstly, introducing polluted soil into a screening machine, and conveying the polluted soil into a transfer bin for cleaning after simple screening treatment, wherein cleaning liquid stored in the transfer bin is used for removing mercury;
step two, the rotation of the driving motor drives the auger assembly to rotate, soil is driven to move in the same direction, soil reaches the other side of the fixing frame through one side of the fixing frame in the movement process, the rotation of the driving gear is driven through the rotation of the linkage rod in the stage of passing the fixing frame, the rotation of the driving gear drives the stirring sleeve and the stirring piece to rotate, and the rotation direction is opposite to that of the auger assembly, so that cleaning liquid in the soil is stirred to wash the soil;
and thirdly, when the soil reaches the second group of fixing frames after passing through the first group of fixing frames, filtering the cleaned soil by a filter tank, leading the treated liquid into the filter bin, leading the filtered soil out of the filter bin again from the holes on the filter bin into the cleaning bin, and finally discharging the filtered soil in a circulating way.
Compared with the prior art, the invention has the following beneficial effects:
according to the ecological restoration device and the ecological restoration method for the mercury-polluted cultivated land, provided by the invention, the soil is stirred through the arrangement of the fixing frame, the rotary drum, the stirring sleeve and the stirring piece, the phenomenon that the soil is accumulated on the auger assembly and cannot be mixed with the cleaning liquid is avoided, the soil can pass through the filter tank to enter the filter bin, and then pass through the filter bin to the cleaning bin, so that impurities in the soil are conveniently removed, the mixing efficiency between the liquid and the soil is improved, the separation of mercury is further improved, the concentration of the cleaning liquid is ensured by reasonably adding a reagent into the separation, the separation of mercury is accelerated in a heating mode, and the separation of mercury is reasonably treated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the transfer bin of the present invention;
FIG. 3 is a schematic diagram of the drive motor and auger assembly of the present invention;
FIG. 4 is a schematic view of the structure of the holder and catheter of the present invention;
FIG. 5 is a schematic view of the structure of the linkage rod and the fixing frame of the present invention;
FIG. 6 is a schematic view of the structure of the filter separator and the holder of the present invention;
FIG. 7 is a schematic view of the structure of the filter cartridge and the cleaning cartridge of the present invention;
FIG. 8 is a schematic view of the structure of the fixing frame and the rotary drum of the present invention;
FIG. 9 is a schematic view of the structure of the storage bin and the conduit of the present invention;
FIG. 10 is an exploded view of the mount of the present invention;
FIG. 11 is a schematic view of the internal cross-section of the storage bin of the present invention.
In the figure: 11. a sieving machine; 12. a transfer bin; 13. a purifying bin; 2. cleaning the assembly; 21. a driving motor; 22. an auger assembly; 23. sealing cover; 24. a storage bin; 25. a partition plate; 26. a filtering baffle; 27. a motor bin; 28. a filtering bin; 29. cleaning a bin; 3. a circulation assembly; 31. a linkage rod; 32. a fixing frame; 33. a conduit; 34. a connecting pipe; 35. a pressure pump; 36. a conduction port; 37. a connecting port; 38. a filter tank; 4. a separation frame; 5. a stirring assembly; 51. a rotating drum; 52. stirring the sleeve; 53. a driving plate; 54. a through groove; 55. a drive tooth; 6. adding components; 61. solid cleaning paste; 62. a bottom plate; 63. a penetration hole; 64. a permeate tube; 65. a heating wire; 66. and an exhaust pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.
Referring to fig. 1-11, the ecological restoration device for safety utilization of mercury contaminated farmland comprises a screening machine 11, wherein a transfer bin 12 is arranged on one side of the screening machine 11, a purification bin 13 is arranged on one side of the transfer bin 12, and large rocks and animal and plant stubbles in soil are removed before the soil is cleaned, and then the soil is cleaned.
The cleaning comprises the steps of mixing and scrubbing, leaching, particle size grading, dewatering and the like, and the pollutants are dissolved or fine particles containing more pollutants are separated from coarse particles by mixing soil with cleaning liquid, scrubbing by a soil scrubbing machine, high-pressure water flow or vibration and the like.
After proper contact time, carrying out soil-water separation, removing coarser particles by using a screen, a vibrating screen or other equipment, dehydrating finer particles by using dehydration equipment, continuously recycling leaching solution, and finally further processing; the mud cake and the like are safely backfilled after detection; the treated coarse particles may be backfilled.
Mercury metal in the soil can be removed by means of soil cleaning.
The cleaning component 2 is embedded in the transporting bin 12, the cleaning component 2 comprises two groups of filtering baffle plates 26, the filtering baffle plates 26 are embedded in the transporting bin 12, the two groups of filtering baffle plates 26 divide the interior of the transporting bin 12 into three spaces, the three spaces are respectively a first group of filtering bin 28, a cleaning bin 29 and a second group of filtering bin 28, the sealing cover 23 is arranged at the top end of the transporting bin 12, the auger component 22 is embedded in the cleaning bin 29, the filtering bin 28 is respectively arranged at two sides of the cleaning bin 29, the separation frame 4 penetrates through the filtering bin 28 and the cleaning bin 29, the separation frame 4 is matched with the fixing frame 32, the interiors of the filtering bin 28 and the cleaning bin 29 are separated into two areas, the area divided near one side of the motor bin 27 plays a role of filtering, in the cleaning of soil, the soil is continuously conveyed forward through the rotation of the driving motor 21, the inside of the transporting bin 12 is used for removing mercury metal solution in the conveying process, the mercury metal solution is treated through reagent solution in the mixing stage, thus the mercury metal is separated from the soil along with the rotation of the auger component 22, and the soil is discharged after the soil is cleaned;
in the cleaning stage, liquid is stored in the transfer bin 12, the auger assembly 22 is driven to rotate through the driving motor 21, soil is immersed into cleaning liquid, impurities are separated out through the filter tank 38 at the upper end of the fixing frame 32 in the cleaning stage, in addition, the filter holes in the filter baffle 26 can also play a role in separating the impurities, the soil from which the impurities are separated enters the filter bin 28, the impurities are separated through the filter bin 28 and then are mixed with the cleaning time, the mixing effect is good, due to the fact that holes are formed in the filter baffle 26, negative pressure is generated when the auger assembly 22 rotates, the soil entering the filter bin 28 is sucked into the cleaning bin 29 again, and the soil entering the cleaning bin 29 after suction is finally conveyed out through the auger assembly 22.
The inside of the transfer bin 12 is also embedded with a division plate 25, the division plate 25 separates a motor bin 27 in the transfer bin 12, a driving motor 21 is arranged in the motor bin 27, an auger assembly 22 is arranged at the output end of the driving motor 21, and a storage bin 24 is also arranged in the transfer bin 12;
the inside of the transfer bin 12 is also embedded with a separation frame 4, the upper surface of the separation frame 4 is connected with a circulation assembly 3, the circulation assembly 3 comprises a fixing frame 32, the upper surface of the separation frame 4 is connected with a fixing frame 32, the top surface of the fixing frame 32 is connected with a linkage rod 31 through a shaft sleeve, gears are arranged at two ends of the linkage rod 31, one group of gears are meshed with a transmission tooth 55, the other group of gears are meshed with the output end of a driving motor 21, the transmission tooth 55 is driven to rotate after the rotation of the linkage rod 31 is driven by the rotation of the output end of the driving motor 21, in order to promote the mixing degree of soil in the transfer bin 12, the mixing between soil and liquid can be promoted through the stirring assembly 5, so that the effect of removing mercury metal is better, the bottom end of the storage bin 24 is connected with a guide pipe 33, one side of the guide pipe 33 is connected with a connecting pipe 34, the storage bin 24 is connected with the guide pipe 33 through the connecting pipe 34, a pressure pump 35 is further arranged on the guide pipe 33, the pressure pump 35 is used for extracting and discharging liquid, the inside of the fixing frame 32 is embedded with a connecting port 37, a conducting port 36 is formed inside the connecting port 37, and the conducting port 36 is communicated with the guide pipe 33, and the arc-shaped fixing frame 38 is arranged on the filter surface of the guide pipe 32;
the inside of the fixed frame 32 is embedded with the stirring assembly 5, the stirring assembly 5 comprises a rotary drum 51, the inside of the fixed frame 32 is embedded with the rotary drum 51, the inner wall of the fixed frame 32 is in a circular ring shape, the rotary drum 51 is attached to the circular ring-shaped inner wall of the fixed frame 32, a filtering groove 38 positioned at the middle part of the fixed frame 32 has the function of filtering impurities, one side surface of the rotary drum 51 is rotationally connected with a stirring sleeve 52, the stirring sleeve 52 is embedded in the inner side of the fixed frame 32, the outer surface of the stirring sleeve 52 is provided with a stirring sheet 53, the outer surface of the stirring sleeve 52 is also provided with a through groove 54, one side of the stirring sleeve 52 far away from the rotary drum 51 is fixedly connected with a transmission tooth 55, after the driving motor 21 drives the auger assembly 22 to rotate, the linkage rod 31 is driven to rotate, when the linkage rod 31 is meshed with the transmission gear 55, the rotation of the linkage rod 31 drives the transmission gear 55 to open and rotate, when the driving teeth 55 rotate to drive the mixing sleeve 52 to rotate, when the mixing sleeve 52 rotates, the liquid is agitated and the soil is driven at the same time, so that the soil rolls in the liquid, and in order to avoid the rotation of the liquid and the auger assembly 22 to be kept synchronous, wherein the direction of rotation of the drive teeth 55 is diametrically opposite to the direction of rotation of the auger assembly 22, such that the rotation of the drive teeth 55 to drive the mixing sleeve 52 and the toggle plate 53 breaks the internal rotation of the liquid, when the stirring sleeve 52 rotates, the liquid impacts on the stirring piece 53 to generate larger spray, so that the original movement track of the liquid is broken, the fluctuation of the liquid is larger, so that the liquid can better impact the soil, the liquid can be mixed with the soil more fully, and mercury attached to the soil can be separated on the basis of the technology.
In order to promote the effect of mercury metal and soil separation, through heating inside liquid, the heating can evaporate mercury, and concentrated collection treatment can be carried out to the gas of output after the evaporation, and in order to be convenient for evaporation precipitation of mercury, can circulate through liquid, accelerates the precipitation of mercury, and concrete operation is as follows:
the adding component 6 is embedded in the storage bin 24, the adding component 6 comprises solid cleaning paste 61, the solid cleaning paste 61 is embedded in the driving motor 21, the bottom plate 62 is embedded in the storage bin 24, the solid cleaning paste 61 is placed on the upper surface of the bottom plate 62, the penetrating hole 63 is formed in the bottom plate 62, the penetrating hole 63 is horn-shaped, the upper end opening of the penetrating hole 63 is small, the lower end opening is large, in the treatment of mercury metal, a reagent needs to be regulated in cleaning liquid, the concentration of the cleaning liquid is ensured by adding the reagent, when the reagent is added, paste-shaped cleaning reagent additive is placed on the bottom plate 62, the isomorphic heating wire 65 heats the liquid in the guide tube 33, steam is generated by heating, the steam is transmitted to the inside of the storage bin 24 through the connecting tube 34, the steam is sprayed to the bottom of the bottom plate 62, the bottom of the solid cleaning paste 61 is heated, the melted solid cleaning paste 61 is dripped into the inside the penetrating tube 64 through the penetrating hole 63, is guided into the inside of the guide tube 33 through the penetrating tube 64, and mixed with the liquid, and mercury in soil is convenient to separate mercury from the soil;
the inner wall of the conduit 33 is provided with a heating wire 65, the heating wire 65 heats the cleaning liquid, the bottom end of the storage bin 24 is also provided with a permeation tube 64, the permeation tube 64 corresponds to the permeation hole 63, the bottom end of the permeation tube 64 is embedded into the conduit 33, the interior of the storage bin 24 is also embedded with an exhaust pipe 66, the tail end of the exhaust pipe 66 is connected with the purification bin 13, the heating wire 65 is added to raise the temperature of the liquid in the conduit 33, steam is generated by raising the temperature, the steam is led into the interior of the storage bin 24 by the connecting tube 34, and the bottom of the solid cleaning paste 61 begins to melt by the hot steam;
in the separation, mercury is doped in vapor generated by heating liquid, and finally, gas is collected through an exhaust pipe 66, so that the overflow of mercury is avoided;
through the method, the cleaning efficiency of the cleaning liquid on the soil can be accelerated, the mixing is accelerated in a fully stirring mode, and the movement of molecules is promoted in a heating mode, so that the separation efficiency of the cleaning agent on mercury in the soil is higher, finally, mercury metal can be separated out due to high heat, and then, the gas accompanied with the mercury is subjected to centralized treatment, and the protection on workers can be enhanced in a sealed environment in operation, so that mercury poisoning is avoided.
The method for safely utilizing the ecological restoration device for the mercury-polluted farmland comprises the following ecological restoration operation steps:
firstly, introducing polluted soil into the screening machine 11, and conveying the polluted soil into the transfer bin 12 for cleaning after simple screening treatment, wherein cleaning liquid stored in the transfer bin 12 is used for removing mercury;
step two, the rotation of the driving motor 21 drives the auger assembly 22 to rotate, the soil is driven to move in the same direction, the soil passes through one side of the fixing frame 32 until reaching the other side of the fixing frame 32 in the moving process, in the stage of passing through the fixing frame 32, the rotation of the linkage rod 31 drives the transmission teeth 55 to rotate, the rotation of the transmission teeth 55 drives the stirring sleeve 52 and the stirring piece 53 to rotate, and the stirring sleeve and the auger assembly 22 are opposite in rotation direction, so that the soil is washed by stirring the cleaning liquid in the soil;
step three, when the soil reaches the second group of fixing frames 32 after passing through the first group of fixing frames 32, the cleaned soil is filtered by the filter tank 38, the processed liquid is led into the filter bin 28, and after being led into the filter bin 28, the filtered soil is led out from the holes on the filter bin 28 into the cleaning bin 29 again, and the soil is circulated and finally discharged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a mercury pollution cultivated land safety utilization ecological restoration device, includes screening machine (11), its characterized in that: a transfer bin (12) is arranged on one side of the screening machine (11), and a purification bin (13) is arranged on one side of the transfer bin (12);
the inside of transporting storehouse (12) is embedded with cleaning element (2), cleaning element (2) including filtering baffle (26), the inside of transporting storehouse (12) is embedded with filtering baffle (26), filtering baffle (26) are provided with two sets of, and two sets of filtering baffle (26) are separated into three space with the inside of transporting storehouse (12), and three space is first group filtering storehouse (28), washs storehouse (29) and second group filtering storehouse (28) respectively, the inside of transporting storehouse (12) has still embedded division board (25), division board (25) separate out motor storehouse (27) in the inside of transporting storehouse (12), internally mounted in motor storehouse (27) has driving motor (21), auger subassembly (22) are installed to the output of driving motor (21), storage silo (24) are still installed to the inside of transporting storehouse (12), sealed lid (23) are installed on the top of transporting storehouse (12);
the inside of transporting storehouse (12) has still embedded separation frame (4), the upper surface of separation frame (4) is connected with circulation subassembly (3), circulation subassembly (3) are including mount (32), are located the upper surface of separation frame (4) and are connected with mount (32), there is gangbar (31) on the top surface of mount (32) through the hub connection, the bottom of storage silo (24) is connected with pipe (33), one side of pipe (33) is connected with linking pipe (34), be connected through linking pipe (34) between storage silo (24) and pipe (33), still install pressure pump (35) on pipe (33), pressure pump (35) are used for the extraction and the discharge of liquid, the inside embedding of mount (32) has linking mouth (37), conduction mouth (36) have been seted up to the inside of linking mouth (37), conduction mouth (36) and pipe (33) communicate each other, be provided with filter tank (38) on the arcwall surface of mount (32).
The inside of mount (32) is embedded with stirring subassembly (5), stirring subassembly (5) include rotary drum (51), the inside embedding of mount (32) has rotary drum (51), rotate on one side of rotary drum (51) and be connected with stirring sleeve (52), stirring sleeve (52) embedding is in the inboard of mount (32), the surface mounting of stirring sleeve (52) has plectrum (53), logical groove (54) have still been seted up to the surface of stirring sleeve (52), one side fixedly connected with transmission tooth (55) of rotary drum (51) are kept away from to stirring sleeve (52).
2. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 1, wherein: the auger assembly (22) is embedded in the cleaning bin (29), the filtering bin (28) is respectively arranged on two sides of the cleaning bin (29), the separation frame (4) penetrates through the filtering bin (28) and the cleaning bin (29), the separation frame (4) is matched with the fixing frame (32), the interior of the filtering bin (28) and the cleaning bin (29) is divided into two areas, and the area which is divided on one side close to the motor bin (27) plays a role in filtering.
3. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 1, wherein: gears are arranged at two ends of the linkage rod (31), one group of gears are meshed with the transmission teeth (55), the other group of gears are meshed with the output end of the driving motor (21), and the transmission teeth (55) are driven to rotate after the linkage rod (31) is driven to rotate through rotation of the output end of the driving motor (21).
4. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 1, wherein: the inner wall of the fixing frame (32) is in a circular ring shape, the rotary drum (51) is attached to the circular ring-shaped inner wall of the fixing frame (32), and the filtering groove (38) positioned in the middle of the fixing frame (32) has the function of filtering impurities.
5. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 1, wherein: the inside of storage silo (24) is embedded with interpolation subassembly (6), interpolation subassembly (6) are including solid-state cleaning cream (61), the inside of driving motor (21) is embedded with solid-state cleaning cream (61), the inside of storage silo (24) is embedded with bottom plate (62), solid-state cleaning cream (61) is placed on the upper surface of bottom plate (62).
6. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 5, wherein: the inside of bottom plate (62) has seted up infiltration hole (63), infiltration hole (63) set up to loudspeaker form, the upper end opening of infiltration hole (63) is little, and the lower extreme opening is big.
7. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 6, wherein: the inner wall of pipe (33) is installed heater strip (65), heater strip (65) heat for the washing liquid, infiltration pipe (64) are still installed to the bottom of storage silo (24), infiltration pipe (64) and infiltration hole (63) are corresponding, the inside of pipe (33) is embedded to the bottom of infiltration pipe (64).
8. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 7, wherein: an exhaust pipe (66) is further embedded in the storage bin (24), and the tail end of the exhaust pipe (66) is connected with the purification bin (13).
9. The ecological restoration device for safety utilization of mercury contaminated cultivated land according to claim 8, wherein: the heating wire (65) is added to raise the temperature of the liquid in the conduit (33), the temperature is raised to generate steam, the steam is led into the storage bin (24) through the connecting pipe (34), and the bottom of the solid cleaning paste (61) is melted by the hot steam.
10. The method for safely utilizing an ecological restoration device for mercury contaminated cultivated lands according to any one of claims 1-4, wherein the method comprises the steps of: the ecological restoration operation steps of mercury pollution cultivated land comprise:
firstly, introducing polluted soil into a sieving machine (11), and conveying the polluted soil into a transferring bin (12) for cleaning after simple sieving treatment, wherein cleaning liquid stored in the transferring bin (12) is used for removing mercury;
step two, the rotation of the driving motor (21) drives the screw assembly (22) to rotate, the soil is driven to move in the same direction, in the moving process, the soil passes one side of the fixing frame (32) until reaching the other side of the fixing frame (32), in the stage of passing the fixing frame (32), the rotation of the driving gear (55) is driven by the rotation of the linkage rod (31), the rotation of the driving gear (55) drives the stirring sleeve (52) and the stirring piece (53) to rotate, and the stirring of the cleaning liquid in the soil is carried out due to the opposite rotation direction to the screw assembly (22);
and thirdly, when the soil reaches the second group of fixing frames (32) after passing through the first group of fixing frames (32), filtering the cleaned soil by a filter tank (38), introducing the treated liquid into the filter bin (28), and guiding the filtered soil out of the holes in the filter bin (28) into the cleaning bin (29) again, so that the soil is circulated and finally discharged.
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