CN210936432U - Heavy metal contaminated soil restoration and purification device - Google Patents

Heavy metal contaminated soil restoration and purification device Download PDF

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Publication number
CN210936432U
CN210936432U CN201922011915.3U CN201922011915U CN210936432U CN 210936432 U CN210936432 U CN 210936432U CN 201922011915 U CN201922011915 U CN 201922011915U CN 210936432 U CN210936432 U CN 210936432U
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heavy metal
mud
stirring
adsorbing
pipe
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洪涛
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Shanghai Xianjin Quality Safety Environmental Protection Technology Co ltd
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Shanghai Xianjin Quality Safety Environmental Protection Technology Co ltd
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Abstract

A heavy metal contaminated soil remediation and purification device comprises a conveying device, a screening device, a heavy metal leaching and adsorbing device, a mud-water separating device and a dehydrating device, wherein the other end of the conveying device is fixed at a feed inlet above a feed hopper; a slurry pool is arranged right below the screening device, and a broken stone hopper is arranged at a discharge port of the screening device; the mud pit is connected with a heavy metal leaching and adsorbing device through a conveying pipe, the top end of the heavy metal leaching and adsorbing device is provided with a stirring motor through a cover plate, the lower part of the stirring motor is movably connected with a stirring rod, and the inner cavity of the heavy metal leaching and adsorbing device is connected with a dosing device through a dosing pipe; the mud-water separation device is connected with the dehydration device through a sludge conveying pipe, and a sludge lifting pump is fixedly arranged in the middle of the sludge conveying pipe. The utility model overcomes prior art's is not enough, has solved among the prior art heavy metal ion and has remained more problem in the soil.

Description

Heavy metal contaminated soil restoration and purification device
Technical Field
The utility model relates to a soil restoration technical field, concretely relates to heavy metal contaminated soil restores purifier.
Background
The heavy metal pollution of the soil refers to the condition that the content of trace metal elements in the soil exceeds a background value and is over-high due to excessive deposition because of human activities, and the condition is generally called as soil heavy metal pollution.
At present, the heavy metal treatment method mainly comprises a biological enrichment method, a soil replacement method, a spraying purification method and the like. Wherein the biological enrichment method is slow in reduction and overlong in purification period. The soil replacement method can only dilute heavy metals in soil, but cannot really remove the heavy metals, so that the method has potential danger. So the method of spray purification is commonly used at present. But the prior device naturally infiltrates liquid through the leakage hole to achieve the purpose of separating the soil from the spraying liquid. The separation process is very long, and more spray liquid is easily stored in the soil and cannot naturally seep out, so that heavy metal ions in the soil have more residues.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a purifier is restoreed to heavy metal contaminated soil has overcome prior art not enough, has solved among the prior art soil heavy metal ion and has remained more problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a heavy metal contaminated soil remediation and purification device comprises a conveying device, a screening device, a heavy metal leaching and adsorbing device, a mud-water separation device and a dehydration device, wherein a soil containing hopper is mounted above one end of the conveying device, a feed hopper is fixedly mounted at one end of the upper surface of the screening device, and the other end of the conveying device is fixed at a feed inlet above the feed hopper; a slurry pool is fixedly arranged under the screening device, and a broken stone hopper is fixedly arranged at a discharge port at the other end of the screening device; the bottom of the mud pit is fixedly communicated with one end of a conveying pipe, the other end of the conveying pipe is arranged inside a heavy metal leaching and adsorbing device, a cover plate is arranged at the top end of the heavy metal leaching and adsorbing device, a stirring motor is installed on the cover plate, a stirring rod is movably connected below the stirring motor, the stirring rod penetrates through the cover plate and is movably connected inside the heavy metal leaching and adsorbing device, the inner cavity of the heavy metal leaching and adsorbing device is connected with a dosing device through a dosing pipe, and a dosing pump is fixedly installed in the middle of the dosing pipe; the heavy metal leaching and adsorbing device is communicated with the mud-water separating device through a communicating vessel, the bottom of the mud-water separating device is fixedly connected with one end of a sludge conveying pipe, the other end of the sludge conveying pipe is arranged inside the dewatering device, and a sludge lifting pump is fixedly arranged in the middle of the sludge conveying pipe.
Preferably, heavy metal leaches adsorption equipment and includes first agitating unit and second stirring adsorption equipment, be linked together between first agitating unit and the second stirring adsorption equipment, agitator motor and puddler all are provided with two sets ofly, and correspond with first agitating unit and second stirring adsorption equipment respectively, charge device is linked together through dosing pipe and second stirring adsorption equipment.
Preferably, install the sludge pump in the middle of the conveyer pipe, the inside fixed mounting of heavy metal leaches adsorption equipment has the liquid level controller, liquid level controller and sludge pump conductive connection.
Preferably, screening plant includes the casing, the side fixed mounting of casing has the rotation motor, it has the hob to rotate motor side swing joint, the hob passes casing side surface swing joint inside the casing, the casing lower surface is provided with the sieve mesh hole, sieve mesh hole below is corresponding with the mud pit.
Preferably, the inner wall of the mud-water separation device is provided with an inclined pipe filler, and the inclined pipe filler is positioned above the communicating vessel.
The utility model provides a heavy metal contaminated soil restores purifier. The method has the following beneficial effects: the soil can be slowly conveyed into the subsequent treatment device through the conveying device; then the separation of soil and broken stones can be achieved through a screening device; the purpose of adsorbing and removing heavy metal ions in the soil can be achieved through the heavy metal leaching and adsorbing device; the dehydration device can achieve the purpose of discharging the redundant liquid in the treated soil out of the soil.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a sieving device of the present invention;
FIG. 3 is a schematic view of the structure of the heavy metal leaching and adsorbing device of the present invention;
the reference numbers in the figures illustrate:
1. a conveying device; 2. a screening device; 3. a heavy metal leaching and adsorbing device; 4. a mud-water separation device; 5. a dewatering device; 6. a soil receiving hopper; 7. a feed hopper; 8. a mud pit; 9. a gravel hopper; 10. a delivery pipe; 11. a cover plate; 12. a stirring motor; 13. a stirring rod; 14. a medicine feeding pipe; 15. a dosing device; 16. a dosing pump; 17. a sludge conveying pipe; 18. a sludge pump; 19. a sludge lift pump; 201. a housing; 202. rotating the motor; 203. a screw rod; 204. a screen mesh; 301. a first stirring device; 302. a second stirring and adsorbing device; 401. and (5) filling the inclined tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.
In the first embodiment, as shown in fig. 1 to 3, a heavy metal contaminated soil remediation and purification device comprises a conveying device 1, a screening device 2, a heavy metal leaching and adsorbing device 3, a mud-water separation device 4 and a dehydration device 5, wherein the conveying device 1 used in the first embodiment can be conveyed by a belt, a soil receiving hopper 6 is installed above one end of the conveying device 1, a feed hopper 7 is fixedly installed at one end of the upper surface of the screening device 2, and the other end of the conveying device 1 is fixed at a feed inlet above the feed hopper 7; a mud pit 8 is fixedly arranged under the screening device 2, and a broken stone hopper 9 is fixedly arranged at a discharge port at the other end of the screening device 2; the bottom of the mud pit 8 is fixedly communicated with one end of a conveying pipe 10, the other end of the conveying pipe 10 is arranged inside the heavy metal leaching and adsorbing device 3, a cover plate 11 is arranged at the top end of the heavy metal leaching and adsorbing device 3, a stirring motor 12 is installed on the cover plate 11, a stirring rod 13 is movably connected below the stirring motor 12, the stirring rod 13 penetrates through the cover plate 11 and is movably connected inside the heavy metal leaching and adsorbing device 3, the inner cavity of the heavy metal leaching and adsorbing device 3 is connected with a dosing device 15 through a dosing pipe 14, and a dosing pump 16 is fixedly installed in the middle of the dosing pipe 14; the heavy metal leaching and adsorbing device 3 is communicated with the mud-water separating device 4 through a communicating vessel, the bottom of the mud-water separating device 4 is fixedly connected with one end of a sludge conveying pipe 17, the other end of the sludge conveying pipe 17 is arranged inside the dehydrating device 5, and a sludge lifting pump 19 is fixedly arranged in the middle of the sludge conveying pipe 17.
During operation, the polluted soil in the soil storage hopper 6 is conveyed into the feed hopper 7 through the conveying device 1, then the polluted soil is guided into the screening device 2 through the feed hopper 7, the polluted soil is subjected to primary screening treatment through the screening device 2, mud stones in the polluted soil are screened out in the screening device 2 due to rolling and fall into the broken stone hopper 9, mud water enters the mud tank 8 through the screening device 2, and then the materials are conveyed into the heavy metal leaching and adsorbing device 3 from the mud tank 8 through the conveying pipe 10 at the bottom of the mud tank 8; because the stirring motor 12 is arranged on the heavy metal leaching and adsorbing device 3, after the materials are conveyed into the heavy metal leaching and adsorbing device 3, the heavy metals in the soil are leached out of the soil under the stirring action of the stirring rod 13 driven by the stirring motor 12, and then the heavy metal chelating agent in the dosing device 15 is fed into the heavy metal leaching and adsorbing device 3 through the dosing pump 16, so that the heavy metals and the chelating agent react and are removed from the liquid; and (3) after mud water from the heavy metal leaching and adsorbing device 3 enters the mud-water separating device 4 through the communicating vessel, mud-water separation is realized through the action of gravity, and then the sludge is pumped into the dewatering device 5 through the sludge lifting pump 19 for dewatering treatment.
The second embodiment, based on the further improvement of the first embodiment, the heavy metal leaching and adsorbing device 3 includes a first stirring device 301 and a second stirring and adsorbing device 302, the first stirring device 301 and the second stirring and adsorbing device 302 are communicated with each other, the stirring motor 12 and the stirring rod 13 are provided with two sets, and respectively correspond to the first stirring device 301 and the second stirring and adsorbing device 302, and the dosing device 15 is communicated with the second stirring and adsorbing device 302 through a dosing pipe. Therefore, during operation, materials are conveyed into the first stirring device 301 through the conveying pipe 10, the stirring rod 13 is driven by the stirring motor 12 above the first stirring device 301 to stir, heavy metals in the soil are leached out of the soil and enter the second stirring and adsorbing device 302, and then the heavy metal chelating agent in the dosing device 15 is thrown into the second stirring and adsorbing device 302 through the dosing pump 16 to react with the heavy metals and the chelating agent, so that the heavy metals and the chelating agent are removed from the liquid.
In the third embodiment, based on further improvement of the first embodiment, a sludge pump 18 is installed in the middle of the conveying pipe 10, and a liquid level controller is fixedly installed inside the heavy metal leaching and adsorbing device 3 and is electrically connected with the sludge pump 18. Thereby accessible sludge pump 18 is carried the material to leach the liquid level controller that adsorption equipment 3 is inside through the heavy metal and can leach the liquid level of material in adsorption equipment 3 according to the heavy metal and control sludge pump 18, leach adsorption equipment 3 in order to guarantee the heavy metal and liquid can not spill over.
In the fourth embodiment, based on the further improvement of the first embodiment, the screening device 2 includes a housing 201, a rotating motor 202 is fixedly installed on the side surface of the housing 201, a screw rod 203 is movably connected to the side surface of the rotating motor 202, the screw rod 203 penetrates through the side surface of the housing 201 and is movably connected inside the housing 201, a screen hole 204 is formed in the lower surface of the housing 201, and the lower portion of the screen hole 204 corresponds to the mud pit 8. Thereby when the sieve, drive the hob 203 through rotating motor 202 and remove from the one end of feeder hopper 7 in casing 201 toward the discharge gate end, at the removal in-process, muddy water can ooze through the mesh hole 204 of casing 201 lower surface, then falls into mud pit 8, and the rubble in soil can remove to the discharge gate end through the effect of hob 203 and fall into in the rubble hopper 9.
In the fifth embodiment, based on the further improvement of the first embodiment, the inner wall of the mud-water separation device 4 is provided with the inclined tube filler 401, and the inclined tube filler 401 is positioned above the communicating vessel. Thereby through optimizing the aperture of pipe chute filler 401, improve water conservancy gradient value, according to the shallow layer theory of deposiing, improved the pipe chute ability of subsiding with higher speed, further improve play water quality then, the mud that the deposit got off can be under the effect of gravity and rivers thrust, along pipe chute filler 401 incline direction down landing.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. The utility model provides a purifier is restoreed to heavy metal contaminated soil which characterized in that: the heavy metal leaching and adsorbing device comprises a conveying device (1), a screening device (2), a heavy metal leaching and adsorbing device (3), a mud-water separating device (4) and a dewatering device (5), wherein a soil containing hopper (6) is installed above one end of the conveying device (1), a feed hopper (7) is fixedly installed at one end of the upper surface of the screening device (2), and the other end of the conveying device (1) is fixed at a feed inlet above the feed hopper (7); a slurry pool (8) is fixedly arranged under the screening device (2), and a broken stone hopper (9) is fixedly arranged at a discharge port at the other end of the screening device (2);
the bottom of the mud pit (8) is fixedly communicated with one end of a conveying pipe (10), the other end of the conveying pipe (10) is arranged inside the heavy metal leaching and adsorbing device (3), a cover plate (11) is arranged at the top end of the heavy metal leaching and adsorbing device (3), a stirring motor (12) is installed on the cover plate (11), a stirring rod (13) is movably connected below the stirring motor (12), the stirring rod (13) penetrates through the cover plate (11) and is movably connected inside the heavy metal leaching and adsorbing device (3), the inner cavity of the heavy metal leaching and adsorbing device (3) is connected with a dosing device (15) through a dosing pipe (14), and a dosing pump (16) is fixedly installed in the middle of the dosing pipe (14);
heavy metal leaches adsorption equipment (3) and is linked together through the linker with mud-water separation device (4), the one end of mud-water separation device (4) bottom fixedly connected with mud conveyer pipe (17), the other end setting of mud conveyer pipe (17) is inside dewatering device (5), fixed mounting has mud elevator pump (19) in the middle of mud conveyer pipe (17).
2. The heavy metal contaminated soil remediation and purification device of claim 1, wherein: heavy metal leaches adsorption equipment (3) and includes first agitating unit (301) and second stirring adsorption equipment (302), be linked together between first agitating unit (301) and second stirring adsorption equipment (302), agitator motor (12) and puddler (13) all are provided with two sets ofly, and correspond with first agitating unit (301) and second stirring adsorption equipment (302) respectively, charge device (15) are linked together through dosing pipe and second stirring adsorption equipment (302).
3. The heavy metal contaminated soil remediation and purification device of claim 1, wherein: install sludge pump (18) in the middle of conveyer pipe (10), heavy metal leaches the inside fixed mounting of adsorption equipment (3) and has liquid level controller, liquid level controller and sludge pump (18) conductive connection.
4. The heavy metal contaminated soil remediation and purification device of claim 1, wherein: screening plant (2) are including casing (201), the side fixed mounting of casing (201) has rotation motor (202), rotation motor (202) side swing joint has hob (203), hob (203) pass casing (201) side surface swing joint inside casing (201), casing (201) lower surface is provided with screen hole (204), screen hole (204) below is corresponding with mud pit (8).
5. The heavy metal contaminated soil remediation and purification device of claim 1, wherein: and an inclined tube filler (401) is arranged on the inner wall of the mud-water separation device (4), and the inclined tube filler (401) is positioned above the communicating vessel.
CN201922011915.3U 2019-11-20 2019-11-20 Heavy metal contaminated soil restoration and purification device Active CN210936432U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922011915.3U CN210936432U (en) 2019-11-20 2019-11-20 Heavy metal contaminated soil restoration and purification device

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Application Number Priority Date Filing Date Title
CN201922011915.3U CN210936432U (en) 2019-11-20 2019-11-20 Heavy metal contaminated soil restoration and purification device

Publications (1)

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CN210936432U true CN210936432U (en) 2020-07-07

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CN201922011915.3U Active CN210936432U (en) 2019-11-20 2019-11-20 Heavy metal contaminated soil restoration and purification device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113210410A (en) * 2021-05-17 2021-08-06 深圳市金海威景观设计工程有限公司 Heavy metal contaminated soil treatment method and device for implementing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113210410A (en) * 2021-05-17 2021-08-06 深圳市金海威景观设计工程有限公司 Heavy metal contaminated soil treatment method and device for implementing same

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