CN116921410A - Soil restoration device and restoration method for heavy metal polluted farmland - Google Patents
Soil restoration device and restoration method for heavy metal polluted farmland Download PDFInfo
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- CN116921410A CN116921410A CN202310867569.7A CN202310867569A CN116921410A CN 116921410 A CN116921410 A CN 116921410A CN 202310867569 A CN202310867569 A CN 202310867569A CN 116921410 A CN116921410 A CN 116921410A
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- heavy metal
- rod
- fixedly connected
- pipe
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- 239000002689 soil Substances 0.000 title claims abstract description 98
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 31
- 231100000719 pollutant Toxicity 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000005067 remediation Methods 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 14
- 230000001502 supplementing effect Effects 0.000 claims description 14
- 241000196324 Embryophyta Species 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004887 air purification Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 6
- 238000009835 boiling Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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- 239000013589 supplement Substances 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
- B09C1/06—Reclamation of contaminated soil thermally
Abstract
The invention discloses a soil remediation device for a heavy metal polluted farmland, which comprises a mounting frame and a ventilation assembly, wherein a heating module is arranged on the mounting frame, a driving module is further arranged in the mounting frame, and partition plates are arranged around the mounting frame. According to the invention, the installation frame is matched with the heating module, a relatively sealed space is provided by adopting the installation frame, the heating module is arranged in farmland soil, when soil is restored, sunlight is focused by utilizing the convex lens, so that sunlight with a larger area is intensively irradiated on the heat absorption plate, water in the heat absorption pipe is further heated, and the pressure tank water storage is matched with the convex lens, so that the water in the pressure tank can be heated to a steam state and then the steam is continuously heated, the steam temperature is higher than the boiling point of volatile heavy metal pollutants, the volatile heavy metal pollutants in the soil can be synchronously evaporated, and the purpose of restoring the soil is further achieved.
Description
Technical Field
The invention relates to the technical field of copper plate and strip processing equipment, in particular to a soil restoration device for a heavy metal polluted farmland and a restoration method thereof.
Background
Heavy metal pollution, as the name implies, refers to environmental pollution caused by heavy metals or compounds thereof, the heavy metal meaning refers to metals with specific gravity greater than 5 (metals with density greater than 4.5 grams per cubic centimeter), including gold, silver, copper, iron, lead, and the like, heavy metal pollution is different from pollution of other organic compounds, and at least organic compounds can be purified physically, chemically or biologically by nature, so that the harmfulness is reduced or relieved. The heavy metals have enrichment, are difficult to degrade in the environment, exist in various chemical states or chemical forms, can remain, accumulate and migrate after entering the environment or an ecological system, and cause harm, so that the technical principle of polluted soil remediation is as follows at present: 1. changing the existence form of the pollutant in the soil or the combination mode of the pollutant and the soil, and reducing the mobility and bioavailability of the pollutant in the environment; 2. reducing the concentration of harmful substances in the soil.
In the prior art, the main heavy metal contaminated soil restoration methods comprise modes such as a composting method, a thermal desorption restoration technology, phytoremediation, chemical leaching, a permeable reaction wall and the like, wherein the phytoremediation needs a longer period, other technologies except the permeable reaction wall technology are not in-situ treatment technologies, the technology is difficult to apply to the restoration of heavy metal contaminated farmland soil, the traditional permeable reaction wall is laid in a soil filling mode after excavation, the engineering amount is large, the time consumption is long, the construction cost is high, the large-scale popularization is difficult, and a heavy metal contaminated soil restoration device and method suitable for farmland soil use are lacked.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a soil remediation device for a heavy metal polluted farmland.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a soil prosthetic devices for heavy metal pollution farmland, includes the mounting bracket and takes a breath the subassembly, be provided with heating module on the mounting bracket, still be provided with drive module in the mounting bracket, be provided with the baffle around the mounting bracket, be provided with the air inlet on the baffle, and the air inlet internal rotation is connected with the baffle, still be provided with the connecting pipe on the baffle, and the connecting pipe passes through trachea and takes a breath the subassembly intercommunication setting, wherein:
the heating module comprises a spherical panel made of transparent materials, the spherical panel is rotationally connected with a mounting frame, a connecting rod is fixedly connected in the mounting frame, a spherical shell is arranged in the middle of the connecting rod, a connecting sleeve is connected in the spherical shell in a sliding mode, an extension rod is fixedly connected to the upper end of the connecting sleeve, a convex lens is fixedly connected to the upper end of the extension rod, a plurality of connecting rods are further clamped on the side wall of the mounting frame, one ends, close to each other, of the connecting rods are fixedly connected with a heat preservation shell, a pressure tank is fixedly connected in the heat preservation shell, a heat absorption plate is arranged at the upper end of the pressure tank, a heat conducting rod is fixedly connected to the lower surface of the heat absorption plate, an air outlet pipe is communicated with the side wall of the pressure tank, and an electromagnetic valve is further arranged on the air outlet pipe;
the driving assembly comprises a driving motor fixedly connected with a mounting frame, the output end of the driving motor is fixedly connected with a connecting block, a threaded sleeve is fixedly connected to the mounting frame, an adjusting bolt is connected to the threaded sleeve in a threaded mode, one end of the adjusting screw is rotationally connected with a control block, the control block is in sliding connection with the mounting frame, an inserting rod is inserted into the connecting block, the upper end of the inserting rod is fixedly connected with a transverse frame, one side of the transverse frame is fixedly connected with an adjusting rod, the transverse frame is arranged against the control block, a plurality of clamping sleeves are arranged on the adjusting rod, the extending rod penetrates through the clamping sleeves, a control rod is connected to the adjusting rod in a sliding mode, the adjusting rod is connected to a retaining ring in a rotating mode close to the side wall of the sliding sleeve, a shifting block is fixedly connected to the control rod, and the shifting block is arranged against the retaining ring.
Preferably, the mounting frame comprises a plurality of support frames spliced with each other, the upper ends of the spherical plate and the support frames are fixedly connected, splicing sleeves are fixedly connected to two adjacent sides of the support frames, and the lower ends of the support frames are provided with ground anchors.
Preferably, the outlet duct includes the annular pipe, annular pipe and outlet duct intercommunication set up, still the intercommunication has the special pipe that encircles the setting on the annular pipe, and has seted up the venthole on the special pipe, the inner wall fixedly connected with insulating sheath that the special pipe is close to the venthole, be provided with the thermal expansion material in the insulating sheath, and sliding connection has the actuating lever in the insulating sheath, the output fixedly connected with flexure strip of actuating lever, be provided with the spacing groove that matches with the flexure strip in the special pipe.
Preferably, one side of the pressure tank is communicated with a water supplementing pipe, the water supplementing pipe penetrates through the heat insulation shell and extends to the outside of the heat insulation shell, and a one-way valve is arranged in the water supplementing pipe.
Preferably, the heat preservation shell comprises a main body, an inner container is arranged in the main body, a vacuum state is arranged between the main body and the inner container, a transparent cover plate is connected with the upper end of the main body in a threaded manner, and a spiral blade is further arranged on the side wall of the lower end of the main body.
Preferably, the ventilation assembly comprises a treatment shell, air purification equipment is arranged in the treatment shell, one side of the treatment shell is communicated with the air pipe, and a fan is arranged at the joint of the treatment shell and the air pipe.
Preferably, the one end that the regulation pole kept away from the crossbearer is fixedly connected with auxiliary rod, the lower extreme of auxiliary rod crossbearer all sliding connection has the vaulting pole.
Preferably, the support frame is connected with a plurality of limit nuts in a threaded manner, and a baffle plate is arranged on the side wall fixing sleeve of the limit nuts.
A soil remediation method for heavy metal polluted farmland is characterized in that,
s1, dividing areas on farmland soil polluted by volatile heavy metals by users, and marking insertion points of heat preservation shells on the soil;
s2, inserting the heat preservation shell into soil by a user, controlling the insertion depth of the heat preservation shell according to the type of crops, ensuring that the depth of an air outlet pipe is larger than the downward growth distance of a plant root system, and ensuring that the soil restoration range is larger than the range of the plant root system for absorbing nutrient components;
s3, sequentially paving the support frames above the heat preservation shell, splicing the support frames, and arranging the partition plates on the support frames on the outermost layer so that a relatively sealed space is formed between the whole mounting frame and soil;
s4, rotating the spherical panel, opening the mounting frame from the upper part of the mounting frame, injecting water into the pressure tank through the water supplementing pipe, and then covering the spherical panel to seal the whole repairing device;
s5, calculating a sun irradiation angle according to the position and seasons of the restored farmland, and then adjusting the position of a control block to ensure that the driving assembly can drive the convex lens to move and ensure that sunlight can irradiate on the heat absorption plate after focusing;
s6, waiting for sunlight irradiation to heat water of the pressure tank, controlling the electromagnetic valve to be opened after sunset, releasing high-temperature steam outwards to heat soil containing volatile heavy metal pollutants, and starting the ventilation assembly to treat the steam;
s7, supplementing water to the pressure tank before sunrise, and repeating S6;
s8, rotating the ball panel, opening the mounting frame from the upper part of the mounting frame, taking out part of soil as a detection sample, and selecting and repeating S6 or disassembling and recycling the repairing device according to the repairing condition
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the installation frame is matched with the heating module, a relatively sealed space is provided by adopting the installation frame, the heating module is arranged in farmland soil, when soil is restored, sunlight is focused by utilizing the convex lens, so that larger area sunlight is intensively irradiated on the heat absorption plate, water in the heat absorption pipe is further heated, and the pressure tank water storage is matched with the convex lens, so that the water in the pressure tank can be heated to a steam state and then the steam is continuously heated, the steam temperature is higher than the boiling point of volatile heavy metal pollutants, and then the steam is released outwards to heat the soil after the continuous heating for one day, so that the volatile heavy metal pollutants in the soil can be synchronously evaporated, and the purpose of restoring the soil is further achieved;
in addition, the solar energy is adopted as an energy source by the heating module, the heating module is inserted into soil to be laid, larger functional equipment or a cable is not required to be equipped in the field, power supply is only required to be provided for a driving assembly and equipment for controlling the driving assembly, on the other hand, even if the specific heat capacity is too high due to the fact that the water content of the soil is large, the soil can be evaporated to dryness through continuous days, the specific heat capacity of the soil is reduced, and the heavy metal pollution restoration effect on the soil is ensured by adopting saturated restoration.
2. Besides, the partition board is matched with the ventilation assembly, and after the heating module releases steam, mixed gas containing volatile heavy metal pollutants can be recovered and treated, so that secondary pollution caused by direct discharge of the pollutants into the atmosphere is avoided, on the other hand, water vapor in the repairing device can be timely discharged, so that the moisture content of soil is reduced, and when the heating module is used for repairing the soil, the repair of the heavy metal pollutants of the soil is more effectively realized, and the volatile heavy metal pollutants can be completely volatilized.
3. According to the invention, the driving assembly is arranged, the driving motor is adopted to drive the connecting block to rotate, so that the control block can drive the adjusting rod to move, finally, the movement of the extending rod in an arc track is realized, the convex lens can focus the rays of the sun on the heat absorbing plate, the position of the control block can be changed by adopting the adjusting bolt, and the horizontal position of the transverse frame can be conveniently adjusted by adopting the connecting mode of the inserting rod matched with the control block, so that the track of the transverse frame for driving the extending rod to move is in an arc shape, and the method is further suitable for sunlight directions in different dimensions and seasons in China, and the focusing effect of the convex lens is ensured.
4. According to the invention, the installation frame formed by the mutually spliced support frames is arranged, farmland soil with different sizes can be adapted, the split design can facilitate the user to store and transport the whole repairing device, equipment can be recovered and reused after soil treatment is completed, and farmland soil can be treated in batches according to actual requirements.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a soil remediation device for a heavy metal contaminated farmland according to the present invention;
FIG. 2 is a schematic diagram of a heating module of a soil remediation device for a heavy metal contaminated farmland according to the present invention;
FIG. 3 is a schematic diagram of a driving module structure of a soil remediation device for a heavy metal contaminated farmland according to the present invention;
FIG. 4 is a schematic diagram of a top-down assembly of a soil remediation device for a heavy metal contaminated farmland according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 2A;
FIG. 6 is an enlarged schematic view of the structure shown at B in FIG. 4;
fig. 7 is a schematic view of an adjusting rod structure of a soil restoration device for a farmland polluted by heavy metals;
FIG. 8 is a schematic view of a heat-insulating shell structure of a soil remediation device for a heavy metal contaminated farmland according to the present invention;
fig. 9 is a schematic diagram of the internal structure of a special pipe of a soil remediation device for farmland polluted by heavy metals.
In the figure: 1. a mounting frame; 101. a support frame; 102. splicing sleeves; 103. an earth anchor; 2. a ventilation assembly; 3. a partition plate; 4. a baffle; 5. a connecting pipe; 6. a ball panel; 7. a connecting rod; 8. a spherical shell; 9. connecting sleeves; 10. a connecting rod; 11. a thermal insulation shell; 1101. a main body; 1102. an inner container; 1103. a transparent cover plate; 1104. a helical blade; 12. a pressure tank; 13. a heat absorbing plate; 14. a heat conduction rod; 15. an air outlet pipe; 1501. an annular tube; 1502. a special-shaped tube; 1503. an air outlet hole; 1504. a heat insulating sleeve; 1505. a driving rod; 1506. an elastic sheet; 16. a driving motor; 17. a connecting block; 18. a thread sleeve; 19. an adjusting bolt; 20. a control block; 21. an adjusting rod; 22. a cross frame; 23. a cutting sleeve; 24. a clasp ring; 25. a control lever; 26. a shifting block; 27. a water supplementing pipe; 28. an auxiliary lever; 29. a brace rod; 30. a limit nut; 31. a baffle; 32. an extension rod; 33. a convex lens.
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.
Referring to fig. 1 to 9, a soil remediation device for heavy metal contaminated farmland includes mounting bracket 1 and subassembly 2 of taking a breath, be provided with heating module on the mounting bracket 1, still be provided with drive module in the mounting bracket 1, be provided with baffle 3 around the mounting bracket 1, be provided with the air inlet on the baffle 3, and the air inlet internal rotation is connected with baffle 4, baffle 4 effect is similar to the check valve, and baffle 4 sets up in baffle 3 one side that is close to mounting bracket 1, still be provided with connecting pipe 5 on the baffle 3, and connecting pipe 5 passes through trachea and the subassembly 2 intercommunication of taking a breath and set up, wherein:
the heating module comprises a spherical plate 6 made of transparent materials, the spherical plate 6 is a rectangular plate, the middle part of the spherical plate is upwards in a spherical bulge and is used for being matched with a convex lens 33, the spherical plate 6 is rotationally connected with a mounting frame 1, a connecting rod 7 is fixedly connected in the mounting frame 1, a spherical shell 8 is arranged in the middle of the connecting rod 7, a connecting sleeve 9 is internally and slidably connected in the spherical shell 8, the outer part of the connecting sleeve 9 is a spherical hollow shell and is used for giving way to light, an extension rod 32 is fixedly connected to the upper end of the connecting sleeve 9, the upper end of the extension rod 32 is fixedly connected with the convex lens 33, a plurality of connecting rods 10 are also clamped on the side wall of the mounting frame 1, one ends, close to each other, of the connecting rods 10 are fixedly connected with a heat preservation shell 11, a pressure tank 12 is fixedly connected in the heat preservation shell 11, a heat absorption plate 13 is arranged at the upper end of the pressure tank 12, the heat absorption plate 13 is made of black materials and is used for absorbing light, the lower surface of the heat absorption plate 13 is fixedly connected with a heat conduction rod 14, the side wall of the pressure tank 12 is communicated with an air outlet pipe 15, and an electromagnetic valve is further arranged on the side wall 15;
the driving assembly comprises a driving motor 16 fixedly connected with a mounting frame 1, the output end of the driving motor 16 is fixedly connected with a connecting block 17, a threaded sleeve 18 is fixedly connected to the mounting frame 1, an adjusting bolt 19 is connected to the threaded sleeve 18 in a threaded manner, one end of the adjusting bolt is rotationally connected with a control block 20, the control block 20 is slidably connected with the mounting frame 1, an inserting rod is inserted into the connecting block 17, the upper end of the inserting rod is fixedly connected with a transverse frame 22, one side of the transverse frame 22 is fixedly connected with an adjusting rod 21, the transverse frame 22 is arranged against the control block 20, a plurality of clamping sleeves 23 are arranged on the adjusting rod 21, an extending rod 32 penetrates through the clamping sleeves 23, a control rod 25 is slidably connected to the adjusting rod 21, a retaining ring 24 is rotationally connected to the side wall of the adjusting rod 21, a shifting block 26 is fixedly connected to the control rod 25, and the shifting block 26 is arranged against the retaining ring 24.
Further, the mounting frame 1 comprises a plurality of support frames 101 that splice each other, sphere board 6 and the upper end fixed connection of support frame 101, the equal fixedly connected with concatenation cover 102 in the adjacent both sides of support frame 101, and the lower extreme of support frame 101 is provided with ground anchor 103, through the mounting frame 1 that is provided with the support frame 101 that splices each other and constitutes, can adapt to not unidimensional farmland soil to the detachable design also can facilitate the user to accomodate and transport whole prosthetic devices, can retrieve equipment and reutilization after accomplishing soil treatment, also can carry out batch processing to farmland soil according to actual demand.
Further, the air outlet pipe 15 includes a shunt pipe including an annular pipe 1501, the annular pipe 1501 is communicated with the air outlet pipe 15, the annular pipe 1501 is further communicated with a special pipe 1502 surrounding the annular pipe, an air outlet hole 1503 is formed in the special pipe 1502, a heat insulation sleeve 1504 is fixedly connected to the inner wall of the special pipe 1502 near the air outlet hole 1503, a thermal expansion material is arranged in the heat insulation sleeve 1504, a driving rod 1505 is slidably connected in the heat insulation sleeve 1504, an elastic sheet 1506 is fixedly connected to the output end of the driving rod 1505, a limit groove matched with the elastic sheet 1506 is formed in the special pipe 1502, the cross section of the special pipe 1502 is triangular, a groove is formed in a short side, the air outlet hole 1503 is arranged in the groove, the design is convenient for a user to insert the air outlet pipe 15 into soil, meanwhile, the soil is prevented from entering the air outlet pipe 15 from the air outlet hole 1503, the heat insulation sleeve 1504 adopts high specific heat capacity materials such as ceramics, nylon, gypsum and the like, in this design, after the high-temperature steam enters the special pipe 1502, the elastic sheet 1506 is in a state of sealing the special pipe 1502 but not sealing the air outlet holes 1503, the high-temperature steam flows outwards from the air outlet holes 1503 closest to the heating module to heat the soil close to the heating module, meanwhile, the heat insulating sleeve 1504 close to the air outlet holes 1503 of the heating module is slowly heated, so that the heat-expanding material in the heat insulating sleeve 1504 is heated and expanded to drive the driving rod 1505 to move, and further the elastic sheet 1506 moves, which is to seal the air outlet holes 1503 close to the elastic sheet 1506 and not sealing the special pipe 1502 any more, so that the high-temperature steam flows to the next air outlet holes 1503 and heats the soil far from the heating module, finally, the purpose of heating the soil in different areas in sequence is achieved, and in the design, as the special pipes 1502 are required to heat the soil in the fan-shaped areas, the thicknesses of the heat insulation sleeves 1504 are different, so that the duration of outwards spraying high-temperature steam through the air outlet holes 1503 in different positions is different, the heating effect of the soil is effectively guaranteed, the purpose of evaporating volatile heavy metal pollution is finally achieved, and after the operation of the heating module is completed, the heat expansion materials shrink along with the natural heat dissipation of the soil, and the elastic sheet 1506 is driven to return to the initial position.
Furthermore, one side of the pressure tank 12 is communicated with a water supplementing pipe 27, the water supplementing pipe 27 penetrates through the heat insulation shell 11 and extends to the outer portion of the heat insulation shell 11, a one-way valve is arranged in the water supplementing pipe 27, the water supplementing pipe 27 is used for facilitating a user to supplement water to the pressure tank 12, operation difficulty is reduced, and use is more convenient.
Further, the heat insulation shell 11 includes a main body 1101, an inner container 1102 is disposed in the main body 1101, a vacuum state is provided between the main body 1101 and the inner container 1102, a transparent cover plate 1103 is screwed on an upper end of the main body 1101, a spiral blade 1104 is further disposed on a lower side wall of the main body 1101, and the spiral blade 1104 is used for facilitating a user to insert the heat insulation shell 11 into soil when the repairing device is disposed.
Further, the ventilation assembly 2 comprises a treatment shell, an air purifying device is arranged in the treatment shell, one side of the treatment shell is communicated with the air pipe, a fan is arranged at the joint of the treatment shell and the air pipe, and the ventilation assembly 2 is commonly used in the prior art and mainly applied to treatment of volatilized gaseous heavy metal pollutants, so that the pollutants are prevented from directly volatilizing into the atmosphere or condensing into the soil again.
Furthermore, an auxiliary rod 28 is fixedly connected to one end of the adjusting rod 21 far away from the transverse frame 22, and a supporting rod 29 is slidably connected to the lower end of the transverse frame 22 of the auxiliary rod 28, and the design is used for supporting the adjusting rod 21, and it is noted that the design of the upper end of the supporting rod 29 is similar to the control block 20, so as to ensure the adjusting effect of the driving assembly on the convex lens 33.
Furthermore, the support frame 101 is threaded with a plurality of stop nuts 30, the side wall of the stop nut 30 is fixedly sleeved with a baffle 31, the stop nuts 30 are matched with the baffle 4, the insertion depth of the lower end of the support frame 101 is controlled, the support frame 101 is prevented from being sunk into the soil, the mounting frames 1 spliced by the support frames 101 are ensured to be positioned on the same horizontal plane, and the adjusting effect of the driving module on the convex lens 33 is ensured.
The working principle is to be firstly explained, the restoration device disclosed by the invention is mainly used for restoration of farmland after being polluted by volatile heavy metals, when the restoration device is used, after being arranged on farmland by a user, sunlight is gathered by utilizing the convex lens 33, a larger area of light is focused on the heat absorption plate 13, the heat absorption plate 13 conducts heat into the pressure tank 12, water in the pressure tank 12 is heated by the heat conduction rod 14 so as to be evaporated after being heated, under the condition of continuous sun for one whole day, after water evaporation, a high-pressure environment is formed in the pressure tank 12, further heating the water vapor is carried out, the temperature of the water vapor is higher than the boiling point of volatile heavy metal pollutants in soil, at sunset time, the user synchronously starts the ventilation assembly 2 and the electromagnetic valve, at the moment, the high-temperature water vapor is discharged through the air outlet pipe 15, part of volatile heavy metal pollutants and the water in the soil are heated by utilizing the vapor, at the moment, the mixed gas is recycled and treated by utilizing the assembly 2, the water vapor in the pressure tank 12 is heated by adopting the heating device, the high-temperature environment is formed in the pressure tank 12, the high-pressure environment is further formed in the condition of continuous sun, the high-temperature environment is formed by utilizing the water vapor, the high-temperature environment is released by the high-temperature environment, the high-temperature environment is released by the water vapor in the high-temperature environment, the high-temperature environment is released by the high-temperature environment, the high-temperature environment is high-temperature heavy metal pollutants in the soil is polluted by the soil, and the high-temperature environment is easily released by the high-temperature vapor, and the high-temperature environment is easily released, and the high-temperature heavy metal is evaporated, and the high-quality is heated, and evaporated, and is heated, and evaporated, and the water in the water is heated and is heated, and is heated and heated, and thereby and is heated, and thereby and is, the heat loss and other factors after starting lead to the difficulty in completely cleaning heavy metal pollutants, but because sunlight is adopted as an energy source, after the repairing device is arranged, repeated cleaning can be carried out for a plurality of days, so that after the soil is dried, the specific heat capacity of the soil is reduced, the heating effect of steam on the soil is further improved, saturated treatment can be completely adopted, the heavy metal pollutants in the soil are gradually reduced until the pollution degree of the soil is reduced to the extent that the heavy metal pollutants cannot influence crops, on the other hand, when aiming at part of heavy metal pollutants of other types, a user can adopt water in a pressure tank 12 to add a neutralizing agent corresponding to the pollutants, the reaction efficiency of the neutralizing agent and the pollutants is promoted by utilizing high temperature, the treatment of other heavy metal pollutants is realized, and the method has the advantages that most crops grown quickly in farmlands have undeveloped root systems, the root systems of the whole growth cycle are shallow, and the heavy metal pollutants in the growth range of the plant root systems are required to be treated when the heavy metal pollution treatment of farmlands is carried out, so that the heavy metal pollution of the heavy metal pollutants in the farmlands cannot be absorbed in the growth process of the crops, and the heavy metal pollutants cannot be absorbed by the heavy metal pollutants in the crops, and the heavy metal pollutants can be influenced by the crops, and the crops are healthily consumed by people;
the driving device is used for adjusting the position of the convex lens 33, ensuring that the convex lens 33 can always focus sunlight on the heat absorbing plate 13, when the driving motor 16 drives the connecting block 17 to rotate by adjusting the position of the control block 20, the control rod 25 arranged on the adjusting rod 21 is used for driving the retaining ring 24 to move along with the movement of the transverse frame 22, so that the clamping sleeve 23 can also move up and down when the transverse frame 22 moves along with the connecting block 17, the contact positions of the clamping sleeve 23 and the extension rod 32 are different, the farther the clamping sleeve 23 is from the connecting sleeve 9, the closer the position of the convex lens 33 is to the right above the heat absorbing plate 13 when the convex lens 33 is driven to move, and the design mainly aims at the situation that the repairing device is used in different seasons and different dimensions, ensuring that the convex lens 33 can correctly focus sunlight on the heat absorbing plate 13, and the control rod 25 arranged on the adjusting rod 21 is used for driving the retaining ring 24 to move, after the mounting frame 1 is arranged, the clamping sleeve 23 is clamped on the plurality of extension rods 32 at one time, and then the control rod 25 is slid, and the retaining ring 24 is driven by the rotating block 26, so that the retaining ring 24 can drive the extension rod 32 to move around the extension rod 32.
A soil remediation method for heavy metal polluted farmland is characterized in that,
s1, dividing areas on farmland soil polluted by volatile heavy metals by users, and marking insertion points of heat preservation shells 11 on the soil;
s2, inserting the heat preservation shell 11 into soil by a user, controlling the insertion depth of the heat preservation shell 11 according to the type of crops, ensuring that the depth of the air outlet pipe 15 is larger than the downward growth distance of plant roots, and ensuring that the soil restoration range is larger than the range of the plant roots for absorbing nutrient components;
s3, sequentially paving the support frames 101 above the heat preservation shell 11, splicing the support frames 101, and arranging the partition plates 3 on the support frames 101 at the outermost layer so that the whole installation frame 1 and soil form a relatively sealed space;
s4, rotating the ball panel 6, opening the mounting frame 1 from the upper part of the mounting frame 1, injecting water into the pressure tank 12 through the water supplementing pipe 27, and then covering the ball panel 6 to seal the whole repairing device;
s5, calculating a sun irradiation angle according to the position and seasons of the restored farmland, and then adjusting the position of the control block 20 to ensure that the driving assembly can drive the convex lens 33 to move and ensure that sunlight can irradiate on the heat absorption plate 13 after being focused;
s6, waiting for sunlight irradiation to heat water of the pressure tank 12, controlling the electromagnetic valve to be opened after sunset, releasing high-temperature steam outwards to heat soil containing volatile heavy metal pollutants, and simultaneously starting the ventilation assembly 2 to treat the steam;
s7, supplementing water to the pressure tank 12 before sunrise, and repeating S6;
s8, rotating the spherical panel 6, opening the mounting frame 1 from the upper side of the mounting frame 1, taking out part of soil as a detection sample, and selecting to repeat S6 or disassembling and recycling the repairing device according to the repairing condition.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. A soil remediation device for heavy metal contaminated farmland, its characterized in that, including mounting bracket (1) and subassembly (2) take a breath, be provided with heating module on mounting bracket (1), still be provided with drive module in mounting bracket (1), be provided with baffle (3) around mounting bracket (1), be provided with the air inlet on baffle (3), and the air inlet internal rotation is connected with baffle (4), still be provided with connecting pipe (5) on baffle (3), and connecting pipe (5) are through trachea and subassembly (2) intercommunication setting of taking a breath, wherein:
the heating module comprises a spherical plate (6) made of transparent materials, the spherical plate (6) is rotationally connected with a mounting frame (1), a connecting rod (7) is fixedly connected in the mounting frame (1), a spherical shell (8) is arranged at the middle part of the connecting rod (7), a connecting sleeve (9) is connected in a sliding manner in the spherical shell (8), an extension rod (32) is fixedly connected to the upper end of the connecting sleeve (9), a convex lens (33) is fixedly connected to the upper end of the extension rod (32), a plurality of connecting rods (10) are further clamped on the side wall of the mounting frame (1), a heat preservation shell (11) is fixedly connected to one ends, close to each other, of the connecting rods (10) in the heat preservation shell, a pressure tank (12) is fixedly connected to the inside of the heat preservation shell, a heat absorption plate (13) is arranged at the upper end of the pressure tank (12), a heat conduction rod (14) is fixedly connected to the lower surface of the heat absorption plate (13), a gas outlet pipe (15) is communicated with the side wall of the pressure tank (12), and an electromagnetic valve is further arranged on the gas outlet pipe (15).
The driving assembly comprises a driving motor (16) fixedly connected with a mounting frame (1), the output end of the driving motor (16) is fixedly connected with a connecting block (17), a threaded sleeve (18) is fixedly connected to the mounting frame (1), an adjusting bolt (19) is connected to the threaded sleeve (18) in a threaded mode, a control block (20) is connected to one end of the adjusting bolt in a rotating mode, the control block (20) is connected with the mounting frame (1) in a sliding mode, an inserting rod is inserted into the connecting block (17), the upper end of the inserting rod is fixedly connected with a transverse frame (22), one side of the transverse frame (22) is fixedly connected with an adjusting rod (21), the transverse frame (22) is arranged against the control block (20), a plurality of clamping sleeves (23) are arranged on the adjusting rod (21), the extending rod (32) penetrates through the clamping sleeve (23) to be arranged, a control rod (25) is connected to one end of the adjusting rod, a side wall of the adjusting rod (21) close to the sliding sleeve is connected with a retaining ring (24) in a rotating mode, a pulling block (26) is fixedly connected to the control rod (25), and the pulling block (26) is arranged against the retaining ring (24).
2. The soil remediation device for heavy metal contaminated farmland according to claim 1, wherein the mounting frame (1) is composed of a plurality of mutually spliced supporting frames (101), the spherical plate (6) is fixedly connected with the upper ends of the supporting frames (101), splicing sleeves (102) are fixedly connected to two adjacent sides of the supporting frames (101), and a ground anchor (103) is arranged at the lower end of the supporting frames (101).
3. The soil remediation device for heavy metal contaminated farmland according to claim 1, characterized in that the air outlet pipe (15) comprises an annular pipe (1501), the annular pipe (1501) is communicated with the air outlet pipe (15), the annular pipe (1501) is further communicated with a special pipe (1502) which is arranged in a surrounding mode, an air outlet hole (1503) is formed in the special pipe (1502), a heat-expanding material is arranged in the heat-insulating sleeve (1504) and is internally and slidably connected with a driving rod (1505), an elastic sheet (1506) is fixedly connected to the output end of the driving rod (1505), and a limit groove matched with the elastic sheet (1506) is formed in the special pipe (1502).
4. Soil remediation device for heavy metal contaminated farmland according to claim 1, characterized in that one side of the pressure tank (12) is connected with a water replenishing pipe (27), the water replenishing pipe (27) penetrates the heat insulation shell (11) and extends to the outside of the heat insulation shell (11), and a one-way valve is arranged in the water replenishing pipe (27).
5. The soil remediation device for heavy metal contaminated farmland according to claim 1, characterized in that the heat-insulating shell (11) comprises a main body (1101), an inner container (1102) is arranged in the main body (1101), a vacuum state is arranged between the main body (1101) and the inner container (1102), a transparent cover plate (1103) is connected to the upper end of the main body (1101) in a threaded manner, and a helical blade (1104) is further arranged on the side wall of the lower end of the main body (1101).
6. The soil remediation device for heavy metal contaminated farmland according to claim 1, wherein the ventilation assembly (2) comprises a treatment shell, an air purification device is arranged in the treatment shell, one side of the treatment shell is communicated with an air pipe, and a fan is arranged at the joint of the treatment shell and the air pipe.
7. Soil remediation device for heavy metal contaminated farmland according to claim 1, characterized in that the end of the adjusting rod (21) far away from the transverse frame (22) is fixedly connected with an auxiliary rod (28), and the lower ends of the auxiliary rod (28) and the transverse frame (22) are both slidingly connected with a stay bar (29).
8. The soil remediation device for heavy metal contaminated farmlands according to claim 2, wherein a plurality of limit nuts (30) are connected to the support frame (101) in a threaded manner, and a baffle plate (31) is arranged on a side wall fixing sleeve of the limit nuts (30).
9. A soil remediation method for heavy metal polluted farmland is characterized in that,
s1, dividing areas on farmland soil polluted by volatile heavy metals by users, and marking insertion points of heat preservation shells (11) on the soil;
s2, inserting the heat preservation shell (11) into soil by a user, controlling the insertion depth of the heat preservation shell (11) according to the type of crops, ensuring that the depth of an air outlet pipe (15) is larger than the downward growth distance of a plant root system, and ensuring that the soil restoration range is larger than the range of the plant root system for absorbing nutrient components;
s3, sequentially paving the support frames (101) above the heat-insulating shell (11), splicing the support frames (101), and arranging the partition plates (3) on the support frames (101) on the outermost layer so that the whole mounting frame (1) and soil form a relatively sealed space;
s4, rotating the ball panel (6), opening the mounting frame (1) from the upper part of the mounting frame (1) and injecting water into the pressure tank (12) through the water supplementing pipe (27), and then covering the ball panel (6) to seal the whole repairing device;
s5, calculating a sun irradiation angle according to the position and seasons of the restored farmland, and then adjusting the position of a control block (20) to ensure that a driving assembly can drive a convex lens (33) to move and ensure that sunlight can irradiate on a heat absorption plate (13) after focusing;
s6, waiting for sunlight irradiation to heat water of the pressure tank (12), controlling the electromagnetic valve to be opened after sunset, releasing high-temperature steam outwards to heat soil containing volatile heavy metal pollutants, and simultaneously starting the ventilation assembly (2) to treat the steam;
s7, supplementing water to the pressure tank (12) before sunrise, and repeating S6;
s8, rotating the ball panel (6), opening the mounting frame (1) from the upper side of the mounting frame (1), taking out part of soil as a detection sample, and selecting to repeat S6 or disassembling and recycling the repairing device according to the repairing condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310867569.7A CN116921410A (en) | 2023-07-15 | 2023-07-15 | Soil restoration device and restoration method for heavy metal polluted farmland |
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| CN202310867569.7A CN116921410A (en) | 2023-07-15 | 2023-07-15 | Soil restoration device and restoration method for heavy metal polluted farmland |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117388444A (en) * | 2023-12-08 | 2024-01-12 | 陕西省环境调查评估中心 | Air detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388444A (en) * | 2023-12-08 | 2024-01-12 | 陕西省环境调查评估中心 | Air detector |
| CN117388444B (en) * | 2023-12-08 | 2024-03-01 | 陕西省环境调查评估中心 | Air detector |
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