CN114985445A

CN114985445A - Safe repair system of heavy metal cadmium polluted tidal brown soil

Info

Publication number: CN114985445A
Application number: CN202210612724.6A
Authority: CN
Inventors: 董欣欣; 孙保亚; 郭志磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-02
Anticipated expiration: 2042-05-31
Also published as: CN114985445B

Abstract

The invention discloses a safe remediation system for heavy metal cadmium polluted moisture brown soil, which relates to the technical field of soil remediation and comprises a spraying treatment box, a spraying assembly and a screen assembly, wherein a material receiving chamber is fixed above the spraying treatment box, an electric heating treatment chamber is arranged above the material receiving chamber, a crushing chamber is arranged above the electric heating treatment chamber, a feed inlet is arranged above the crushing chamber, the spraying assembly is arranged above the inside of the spraying treatment box, the spraying assembly comprises a water inlet box, a water inlet pipe, a micro booster pump, a spraying pipe, a water outlet and a filter screen, and the water inlet pipe is arranged on two sides of the water inlet box. This safe repair system of heavy metal cadmium pollution tide brown soil can heat brown soil through the electric heat mode of restoreing to volatilize partly heavy metal composition wherein, later stage can also be through the mode of brown soil drip washing, transfer some heavy metal composition in the brown soil to the brown soil liquid phase, reach the purpose that the brown soil was restoreed.

Description

Safe repair system of heavy metal cadmium polluted tidal brown soil

Technical Field

The invention relates to the technical field of soil remediation, in particular to a safe remediation system for heavy metal cadmium polluted moist brown soil.

Background

Soil remediation is a technical measure to restore normal function to contaminated soil. Brown soil was once called brown forest soil. Soil developed in deciduous and broadleaf forests and coniferous and broadleaf mixed forests in warm and humid climatic zones, in a silicoaluminiding stage and with a sliming characteristic. The tidal brown soil is mainly distributed at the higher underground water level of the foothills plains. The full section has no lime reaction, is in a slightly acid to neutral reaction, has diving phenomenon, thicker plough layer, higher organic matter content and relatively richer nutrient content.

The existing heavy metal cadmium polluted tide brown soil cannot fully remove heavy metal components in the soil when the soil is repaired, and the leaching efficiency is low when the soil is leached, so that the safety repairing system of the heavy metal cadmium polluted tide brown soil is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a safe remediation system for heavy metal cadmium polluted moist brown soil, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a safe repair system of heavy metal cadmium pollution tide brown soil, is including spraying processing case, spray set and screen assembly, the top of spraying processing case is fixed with and connects the material room, and connects the top of material room to install the electric heat treatment room, the top of electric heat treatment room is installed and is smashed the room, and smashes the top of room and be provided with the feed inlet, spray set installs in the inside top of spraying processing case, and spray set includes into water case, inlet tube, miniature booster pump, shower, delivery port and filter screen, the both sides of intaking the case are provided with the inlet tube, and the below of intaking the case installs miniature booster pump, the below of miniature booster pump is connected with the shower, and the outside of shower is provided with the delivery port, the inside of delivery port is fixed with the filter screen, screen assembly installs in the inside below of spraying processing case, and screen assembly includes frame, a little, Expanding spring, interior screen cloth and shock dynamo, the inboard of frame is fixed with expanding spring, and expanding spring's inboard installs interior screen cloth, shock dynamo is all installed to the below both sides of interior screen cloth, the inside mid-mounting that sprays the processing case has auxiliary assembly, and auxiliary assembly includes driving motor, activity pivot, rotatory horizontal pole and loose montant, driving motor's downside is provided with the activity pivot, and the bottom of activity pivot is fixed with rotatory horizontal pole, the top vertical fixation of rotatory horizontal pole has loose montant.

Further, the internally mounted who smashes the room has crushing unit, and crushing unit includes first motor, crushing roller and crushing sword, for rotating between crushing roller and the crushing room and being connected, and the external fixation of crushing roller has crushing sword, the both ends externally mounted of crushing roller has first motor.

Further, the subassembly is installed and is washd in the outside top of smashing the room, and washs the subassembly and include telescopic link, water injection pipe, shunt tubes and washing shower nozzle, the water injection pipe is installed to the top of telescopic link, and the below of water injection pipe is connected with the shunt tubes, the below of shunt tubes is installed and is washd the shower nozzle.

Further, the material mouth has all been seted up to the upper and lower side of electric heat treatment chamber, and the electromagnetic heating board is installed to the inner wall both sides of electric heat treatment chamber, the internally mounted of electric heat treatment chamber has the stirring subassembly, the outside both sides that spray the processing case are provided with row material pipe and drain pipe from top to bottom once.

Further, the stirring subassembly includes second motor, stirring roller, changes the board, links up piece, cleaning brush and shovel board, be connected for rotating between stirring roller and the electric heat treatment chamber, and the outside both ends of stirring roller install the second motor, the outside of stirring roller is fixed with changes the board, and changes the top of board and be fixed with and link up the piece, clean brush and shovel board are installed in the outside of linking up the piece.

Further, the surface mounting of shovel board has anti-adhesion assembly, and anti-adhesion assembly includes motor shaft, first scale removal shovel, damping pivot and second scale removal shovel, the motor shaft is installed through embedded motor rotation in the surface of commentaries on classics board, and the outside of motor shaft is fixed with first scale removal shovel, the second scale removal shovel is installed through damping pivot rotation in the both sides of first scale removal shovel.

Furthermore, the material receiving chamber is internally provided with a feeding assembly, the feeding assembly comprises a servo motor, a rotating shaft, a thread feeding plate and a material guide pipe, the rotating shaft is arranged on the lower side of the servo motor, the thread feeding plate is fixed on the outer side of the rotating shaft, the material guide pipe is embedded in the bottom wall of the material receiving chamber and the upper wall of the spraying treatment box, and the material guide pipe penetrates through the inside of the water inlet box.

Furthermore, the water inlet tank is communicated with the spray pipes, and the spray pipes are distributed at equal intervals.

Furthermore, the symmetric centers of the outer frame and the inner screen coincide with the symmetric center of the spraying treatment box, and the inner screen forms an elastic structure with the outer frame through a telescopic spring.

Further, the auxiliary assembly further comprises a telescopic sleeve, a connecting spring and an anti-blocking brush, the anti-blocking brush is connected to the lower portion of the rotary cross rod through the telescopic sleeve, and the connecting spring is arranged inside the telescopic sleeve.

The invention provides a safe restoration system of heavy metal cadmium polluted tidal brown soil, which has the following beneficial effects:

this safe repair system of heavy metal cadmium pollution tide brown soil can heat brown soil through the electric heat mode of restoreing to volatilize partly heavy metal composition wherein, later stage can also be through the mode of brown soil drip washing, transfer some heavy metal composition in the brown soil to the brown soil liquid phase, reach the purpose that the brown soil was restoreed.

1. This safety repair system of heavy metal cadmium pollution tide brown soil is provided with crushing unit and electromagnetic heating board, be convenient for drive the rotation of smashing the roller through first motor, make the rotation that smashes the sword that can drive, chop the tide brown soil of drying in advance, make things convenient for subsequent processing, electromagnetic heating board in the electric heat treatment room can produce the electromagnetic wave through high frequency voltage, and then heat the inside brown soil of electric heat treatment room, thereby dissociate the pollutant from soil, make the heavy metal separation of volatility, wherein heavy metal cadmium is volatile in the air after the heating, reach the prosthetic purpose of brown soil.

2. This safety repair system of heavy metal cadmium pollution tide brown soil is provided with washs the subassembly, be convenient for go up and down the height of adjustment water injection pipe through the telescopic link, it does not influence the feeding to be convenient for go up and down the height when adjusting height or delivering soil material when wasing, through the inside injection clean water source to the water injection pipe, can make clean water source enter into the inside of shunt tubes, it evenly drenches washing water to the inside of smashing the room through the feed inlet to wash to smashing the room, electric heat treatment chamber and material receiving chamber, wash the inside of spraying the treatment box with remaining brown soil simultaneously, and this part of water can use with the shower water jointly, reach the multi-purpose effect of a thing.

3. This safe repair system of heavy metal cadmium pollution tide brown soil is provided with the stirring subassembly, be convenient for drive the rotation of changeing the board through second motor and stirring roller, make the commentaries on classics board can carry out the even stirring to the inside brown soil of electrothermal treatment room, make the brown soil heated more abundant, make things convenient for heavy metal composition wherein to be heated and dissociate, can strike off the brown soil of electrothermal treatment room inner wall through the shovel board, can further clear away the brown soil of electrothermal treatment room inner wall through the cleaning brush, the scale removal is comparatively abundant, avoid the adhesion of electrothermal treatment room inner wall brown soil, the rotation through rotation axis and screw thread pay-off board can be sent into the inside that sprays the treatment case through the passage of brown soil of connecing the material room inside.

4. This safety repair system of heavy metal cadmium pollution tide brown soil is provided with antiseized knot subassembly, be convenient for drive the rotation of first scale removal shovel through the motor shaft, the scale removal scope that enlarges first scale removal shovel can cooperate the use to the second scale removal shovel of first scale removal shovel both sides, make first scale removal shovel and second scale removal shovel use simultaneously and remove soil to the surface of changeing the board, avoid brown soil to adhere to the surface that bonds at changeing the board, first scale removal shovel staggered distribution has five groups, and extension line mutually perpendicular between the adjacent first scale removal shovel, do not influence each other when making between two liang of first scale removal shovels with the speed rotation, can increase the coverage in repeated soil removal region simultaneously, make changeing board surface soil removal more abundant.

5. This safety repair system of heavy metal cadmium pollution tide palm soil is provided with spray set, be convenient for send into the leacheate to the inside of case of intaking through the inlet tube, the leacheate of the incasement portion of intaking can enter into the shower, can strengthen water pressure through miniature booster pump, make the leacheate of the inside of shower spout through the delivery port blowout to spray the palm soil of processing incasement portion, drip washing is carried out the palm soil, make heavy metal composition in the palm soil solid phase can enter into in the palm soil liquid phase, can discharge the palm soil liquid phase through the drain pipe, reach the prosthetic purpose of palm soil, be convenient for discharge the palm soil solid phase through arranging the material pipe, the palm soil remediation can be accomplished in the later stage to dry again.

6. This safety repair system of heavy metal cadmium pollution tide brown soil is provided with screen assembly, be convenient for drive the vibrations of interior screen cloth through shock dynamo, interior screen cloth and the frame between link to each other the vibrations of the interior screen cloth of being convenient for through expanding spring elasticity, make interior screen cloth can filter the brown soil liquid phase of top, vibrations are convenient for improve the speed of sieving, can make the brown soil solid phase shock of interior screen cloth top simultaneously, and then make to contain more air component in the brown soil, so that more abundant brown soil drip washing.

7. This safe repair system of heavy metal cadmium pollution tide brown soil is provided with the auxiliary assembly, be convenient for drive the rotation of rotatory horizontal pole through driving motor and activity pivot, thereby be convenient for drive the rotation of loose montant and make loose montant can stir the brown soil of handling incasement portion to spraying and loosen, make things convenient for the brown soil to fully drip wash, prevent stifled brush through linking up the vibrations of screen cloth in the spring is convenient for cooperation below with rotatory horizontal pole elasticity and linking to each other, can drive the rotation of preventing stifled brush through rotatory horizontal pole, make to prevent that stifled brush can scrub the surface of internal screen cloth and prevent that the condition that the jam appears in the screen cloth.

Drawings

FIG. 1 is a schematic front view of the internal structure of the present invention;

FIG. 2 is a schematic top view of the interior of the electric heating chamber according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is a schematic view of an enlarged top view of the anti-stiction assembly of the present invention;

FIG. 5 is an enlarged schematic view of the interior of the spray treatment tank of the present invention;

FIG. 6 is an enlarged schematic view of the spray assembly of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

FIG. 8 is an enlarged view of the anti-clogging brush according to the present invention.

In the figure: 1. a spray treatment tank; 2. a receiving chamber; 3. an electrothermal processing chamber; 4. a crushing chamber; 5. a feed inlet; 6. a size reduction assembly; 601. a first motor; 602. a crushing roller; 603. a crushing blade; 7. cleaning the assembly; 701. a telescopic rod; 702. a water injection pipe; 703. a shunt tube; 704. cleaning the spray head; 8. a material port; 9. an electromagnetic heating plate; 10. a stirring assembly; 1001. a second motor; 1002. a stirring roller; 1003. rotating the plate; 1004. a joining block; 1005. a cleaning brush; 1006. a shovel plate; 11. an anti-stiction assembly; 1101. a motor shaft; 1102. a first descaling shovel; 1103. a damping rotating shaft; 1104. a second descaling shovel; 12. a feeding assembly; 1201. a servo motor; 1202. a rotating shaft; 1203. a threaded feed plate; 1204. a material guide pipe; 13. a spray assembly; 1301. a water inlet tank; 1302. a water inlet pipe; 1303. a micro booster pump; 1304. a shower pipe; 1305. a water outlet; 1306. filtering with a screen; 14. a screen assembly; 1401. an outer frame; 1402. a tension spring; 1403. an inner screen; 1404. vibrating a motor; 15. an auxiliary component; 1501. a drive motor; 1502. a movable rotating shaft; 1503. rotating the cross bar; 1504. loosening the vertical rod; 1505. a telescopic sleeve; 1506. connecting the springs; 1507. anti-blocking brushing; 16. a discharge pipe; 17. and a water discharge pipe.

Detailed Description

Referring to fig. 1 to 6, the present invention provides a technical solution: a safe remediation system for heavy metal cadmium polluted moist brown soil comprises a spraying treatment box 1, a spraying assembly 13 and a screen assembly 14, wherein a material receiving chamber 2 is fixed above the spraying treatment box 1, an electric heating treatment chamber 3 is installed above the material receiving chamber 2, a crushing chamber 4 is installed above the electric heating treatment chamber 3, a feed inlet 5 is arranged above the crushing chamber 4, the spraying assembly 13 is installed above the inside of the spraying treatment box 1, the spraying assembly 13 comprises a water inlet box 1301, a water inlet pipe 1302, a micro booster pump 1303, a spray pipe 1304, a water outlet 1305 and a filter screen 1306, the water inlet pipe 1302 is arranged on two sides of the water inlet box 1301, the micro booster pump 1303 is installed below the water inlet box 1301, the spray pipe 1304 is connected below the micro booster pump 1303, the water outlet 1305 is arranged on the outer side of the spray pipe 1304, the filter screen 1306 is fixed inside the water outlet 1305, the screen assembly 14 is installed below the inside of the spraying treatment box 1, and screen cloth subassembly 14 includes frame 1401, expanding spring 1402, interior screen cloth 1403 and shock dynamo 1404, the inboard of frame 1401 is fixed with expanding spring 1402, and interior screen cloth 1403 is installed to expanding spring 1402's inboard, shock dynamo 1404 is all installed to the below both sides of interior screen cloth 1403, the inside mid-mounting that sprays processing case 1 has auxiliary assembly 15, and auxiliary assembly 15 includes driving motor 1501, activity pivot 1502, rotatory horizontal pole 1503 and loose montant 1504, the downside of driving motor 1501 is provided with movable pivot 1502, and the bottom of activity pivot 1502 is fixed with rotatory horizontal pole 1503, the top vertical fixation of rotatory horizontal pole 1503 has loose montant 1504.

Referring to fig. 1, a pulverizing assembly 6 is installed inside the pulverizing chamber 4, and the pulverizing assembly 6 includes a first motor 601, a pulverizing roller 602 and a pulverizing blade 603, the pulverizing roller 602 is rotatably connected to the pulverizing chamber 4, the pulverizing blade 603 is fixed outside the pulverizing roller 602, and the first motor 601 is installed outside both ends of the pulverizing roller 602;

the operation is as follows, the rotation of the crushing roller 602 is conveniently driven by the first motor 601, so that the crushing roller 602 can drive the crushing blade 603 to rotate, and the pre-dried moist brown soil is chopped, thereby facilitating subsequent treatment.

Referring to fig. 1, a cleaning assembly 7 is installed above the exterior of the pulverization chamber 4, and the cleaning assembly 7 includes a telescopic rod 701, a water injection pipe 702, a shunt pipe 703 and a cleaning nozzle 704, the water injection pipe 702 is installed above the telescopic rod 701, the shunt pipe 703 is connected below the water injection pipe 702, and the cleaning nozzle 704 is installed below the shunt pipe 703; the operation is as follows, the height of the water injection pipe 702 can be conveniently adjusted in a lifting mode through the telescopic rod 701, the feeding is conveniently not affected by the height of the water injection pipe 702 which is adjusted downwards or the height of the water injection pipe 702 which is increased when the soil is conveyed, a clean water source is injected into the water injection pipe 702, the clean water source can enter the shunt pipe 703, the cleaning spray head 704 can be used for uniformly spraying cleaning water into the crushing chamber 4 through the feed inlet 5, the crushing chamber 4, the electric heating treatment chamber 3 and the material receiving chamber 2 can be conveniently cleaned, meanwhile, the residual brown soil can be flushed into the spraying treatment box 1, and the water can be jointly used with spraying water, so that the effect of multiple purposes of one object is achieved.

Referring to fig. 1, 2 and 5, the upper side and the lower side of the electrothermal treatment chamber 3 are both provided with a material port 8, both sides of the inner wall of the electrothermal treatment chamber 3 are provided with electromagnetic heating plates 9, the interior of the electrothermal treatment chamber 3 is provided with a stirring assembly 10, and both sides of the exterior of the spray treatment box 1 are provided with a material discharge pipe 16 and a water discharge pipe 17 from top to bottom at one time; the specific operation is as follows, the electromagnetic heating plate 9 in the electric heating treatment chamber 3 can generate electromagnetic waves through high-frequency voltage, and then heat the brown soil in the electric heating treatment chamber 3, thereby dissociating pollutants from soil, separating volatile heavy metals, wherein the heavy metal cadmium is volatile in the air after being heated, and the purpose of brown soil remediation is achieved.

Referring to fig. 1-3, an anti-adhesion assembly 11 is mounted on a surface of the shovel plate 1006, the stirring assembly 10 includes a second motor 1001, a stirring roller 1002, a rotating plate 1003, a connecting block 1004, a cleaning brush 1005 and the shovel plate 1006, the stirring roller 1002 is rotatably connected to the electrothermal processing chamber 3, the second motor 1001 is mounted at two ends of the outer portion of the stirring roller 1002, the rotating plate 1003 is fixed at the outer side of the stirring roller 1002, the connecting block 1004 is fixed at the top end of the rotating plate 1003, and the cleaning brush 1005 and the shovel plate 1006 are mounted at the outer side of the connecting block 1004; specific operation is as follows, be convenient for drive the rotation of changeing board 1003 through second motor 1001 and stirring roller 1002, make changeing board 1003 can carry out the even stirring to the inside brown soil of electric heat treatment room 3, make the brown soil be heated more fully, make things convenient for heavy metal composition wherein to be heated and dissociate, can strike off the brown soil of electric heat treatment room 3 inner wall through shovel board 1006, can further clear away the brown soil of electric heat treatment room 3 inner wall through cleaning brush 1005, the scale removal is comparatively abundant, avoid the electric heat treatment room 3 inner wall brown soil to adhere to the bonding.

Referring to fig. 2 and 4, the anti-adhesion assembly 11 includes a motor shaft 1101, a first descaler blade 1102, a damping rotating shaft 1103 and a second descaler blade 1104, the motor shaft 1101 is rotatably installed on the surface of the rotating plate 1003 through an embedded motor, the first descaler blade 1102 is fixed on the outer side of the motor shaft 1101, and the second descaler blade 1104 is rotatably installed on two sides of the first descaler blade 1102 through the damping rotating shaft 1103; the concrete operation is as follows, be convenient for drive the rotation of first scale removal shovel 1102 through motor shaft 1101, the second scale removal shovel 1104 of first scale removal shovel 1102 both sides can cooperate and use the scale removal scope that enlarges first scale removal shovel 1102, make first scale removal shovel 1102 and second scale removal shovel 1104 use simultaneously and remove soil to the surface of changeing board 1003, avoid the brown soil to adhere to the surface that bonds at changeing board 1003, first scale removal shovel 1102 staggered distribution has five groups, and extension line mutually perpendicular between the adjacent first scale removal shovel 1102, do not influence each other when making two liang of first scale removal shovels 1102 rotate with the speed, can increase the coverage in repeated soil removal region simultaneously, make changeing board 1003 surface soil removal more abundant.

Referring to fig. 5, a feeding assembly 12 is installed inside the receiving chamber 2, the feeding assembly 12 includes a servo motor 1201, a rotating shaft 1202, a thread feeding plate 1203 and a material guiding pipe 1204, the rotating shaft 1202 is installed on the lower side of the servo motor 1201, the thread feeding plate 1203 is fixed on the outer side of the rotating shaft 1202, the material guiding pipe 1204 is embedded in the bottom wall of the receiving chamber 2 and the upper wall of the spray treatment tank 1, and the material guiding pipe 1204 penetrates through the inside of the water inlet tank 1301; the operation is as follows specifically, be convenient for drive the rotation of rotation axis 1202 and screw thread feeding plate 1203 through servo motor 1201 for screw thread feeding plate 1203 can send into the inside that sprays processing case 1 through passage 1204 with the inside brown soil of connecing material chamber 2, and the setting of screw thread feeding plate 1203 can accelerate the material feeding speed, improves the availability factor.

Referring to fig. 5 and 6, the water inlet tank 1301 and the spraying pipes 1304 are communicated with each other, and the spraying pipes 1304 are distributed at equal intervals; be convenient for send into the leacheate to the inside of case 1301 of intaking through inlet tube 1302, the inside leacheate of case 1301 of intaking can enter into the shower 1304, can strengthen water pressure through miniature booster pump 1303, make the inside leacheate of shower 1304 spout through delivery port 1305 to spray and handle the inside brown soil of case 1, drip washing the brown soil, make heavy metal composition in the brown soil solid phase can enter into the brown soil liquid phase, can discharge the brown soil liquid phase through drain pipe 17, reach the prosthetic purpose of brown soil, be convenient for discharge the brown soil solid phase through arranging material pipe 16, the later stage is dried again and can be accomplished the brown soil and restore.

Referring to fig. 5 and 7, the symmetric centers of the outer frame 1401 and the inner screen 1403 are overlapped with the symmetric center of the spraying treatment box 1, and the inner screen 1403 forms an elastic structure with the outer frame 1401 through the expansion spring 1402; be convenient for drive the vibrations of interior screen cloth 1403 through shock dynamo 1404, interior screen cloth 1403 with frame 1401 between link to each other through expanding spring 1402 elasticity be convenient for the vibrations of interior screen cloth 1403, make interior screen cloth 1403 can filter the brown soil liquid phase of top, vibrations are convenient for improve the speed of sieving, can make the brown soil solid phase oscillation of interior screen cloth 1403 top simultaneously, and then make to contain more air component in the brown soil, so that more abundant brown soil drip washing.

Referring to fig. 5 and 8, the auxiliary assembly 15 further includes a telescopic sleeve 1505, an engaging spring 1506 and an anti-clogging brush 1507, the anti-clogging brush 1507 is connected to the lower portion of the rotary crossbar 1503 through the telescopic sleeve 1505, and the engaging spring 1506 is installed inside the telescopic sleeve 1505; the operation is as follows specifically, be convenient for drive the rotation of rotatory horizontal pole 1503 through driving motor 1501 and activity pivot 1502, thereby be convenient for drive the rotation of loose montant 1504 make loose montant 1504 can stir the brown soil of treating case 1 inside spraying loose, make things convenient for the sufficient drip washing of brown soil, prevent stifled brush 1507 and link to each other the vibrations of screen cloth 1403 in the cooperation below of being convenient for through linking up spring 1506 and rotatory horizontal pole 1503 elasticity, can drive the rotation of preventing stifled brush 1507 through rotatory horizontal pole 1503, make prevent that stifled brush 1507 can scrub the surface of internal screen cloth 1403 and prevent that the condition that jam appears in the screen cloth 1403.

In conclusion, when the safe remediation system for the brown soil polluted by heavy metal cadmium is used, firstly, brown soil which is dried in advance can be sent into the interior of the crushing chamber 4 through the feed inlet 5, then the crushing roller 602 can be driven to rotate through the first motor 601, so that the crushing roller 602 drives the crushing blade 603 to rotate to crush the brown soil, then the crushed brown soil enters the interior of the electrothermal treatment chamber 3 through the feed inlet 8, then the electromagnetic heating plate 9 in the electrothermal treatment chamber 3 generates electromagnetic waves through high-frequency voltage, further, the brown soil in the electrothermal treatment chamber 3 is heated, pollutants are dissociated from soil, volatile heavy metals are separated, the heavy metal cadmium is volatilized in the air after being heated, the purpose of brown soil remediation is achieved, at the moment, the rotating plate 1003 can be driven to rotate through the second motor 1001 and the stirring roller 1002, so that the rotating plate 1003 can uniformly stir the brown soil in the electrothermal treatment chamber 3, the brown soil is heated more fully, heavy metal components in the brown soil are conveniently heated and dissociated, the shovel plate 1006 can scrape the brown soil on the inner wall of the electrothermal treatment chamber 3, the cleaning brush 1005 can further clean the brown soil on the inner wall of the electrothermal treatment chamber 3, and adhesion and bonding of the brown soil on the inner wall of the electrothermal treatment chamber 3 are avoided; in the process, the motor shaft 1101 can also drive the first descaling shovel 1102 to rotate, the second descaling shovels 1104 on the two sides of the first descaling shovel 1102 can be matched with each other to enlarge the descaling range of the first descaling shovel 1102, so that the first descaling shovel 1102 and the second descaling shovels 1104 can simultaneously remove soil on the surface of the rotating plate 1003, brown soil is prevented from being adhered to the surface of the rotating plate 1003, the brown soil enters the inside of the material receiving chamber 2 through the material opening 8, the servo motor 1201 drives the rotating shaft 1202 and the thread feeding plate 1203 to rotate, and the thread feeding plate 1203 feeds the brown soil in the material receiving chamber 2 into the spraying treatment box 1 through the material guide pipe 1204; then, the leacheate is fed into the water inlet tank 1301 through the water inlet pipe 1302, the leacheate in the water inlet tank 1301 can enter the spray pipe 1304, the water pressure is enhanced through the micro booster pump 1303, the leacheate in the spray pipe 1304 is sprayed into the brown soil in the spray treatment tank 1 through the water outlet 1305, the brown soil is leached, then, heavy metal components in a solid phase of the brown soil can enter the liquid phase of the brown soil, at the moment, the vibration motor 1404 can drive the inner screen 1403 to vibrate, the inner screen 1403 can filter the liquid phase of the brown soil above the inner screen, the sieving speed is increased through vibration, meanwhile, the brown soil above the inner screen 1403 can vibrate, further, more air components are contained in the brown soil, more sufficient brown soil leaching is facilitated, and in the process, the rotary cross rod 1503 can be driven to rotate through the driving motor 1501 and the movable rotating shaft 1502, therefore, the loosening vertical rod 1504 is driven to rotate, so that the loosening vertical rod 1504 can stir and loosen brown soil in the spraying treatment box 1, the brown soil is conveniently and fully washed, the rotating cross rod 1503 can drive the anti-blocking brush 1507 to rotate, and the anti-blocking brush 1507 can scrub the surface of the inner screen 1403 to prevent the inner screen 1403 from being blocked; then, the height of the water injection pipe 702 can be adjusted to be close to the feed port 5 through descending of the telescopic rod 701, a clean water source is injected into the water injection pipe 702, the clean water source enters the shunt pipe 703, the cleaning spray head 704 uniformly sprays cleaning water into the crushing chamber 4 through the feed port 5, the crushing chamber 4, the electric heating treatment chamber 3 and the receiving chamber 2 are cleaned conveniently, residual brown soil is flushed into the spraying treatment box 1, the water can be used together with the spraying water, finally, brown soil liquid phase containing heavy metal components is discharged through the drain pipe 17 and is recycled, brown soil solid phase is discharged through the discharge pipe 16, and the brown soil restoration can be completed through drying in the later period, so that the using process of the safety restoration system for the whole heavy metal cadmium polluted brown soil is completed.

Claims

1. The safe repair system for the heavy metal cadmium polluted moist brown soil is characterized by comprising a spraying treatment box (1), a spraying assembly (13) and a screen assembly (14), wherein a material receiving chamber (2) is fixed above the spraying treatment box (1), an electric heating treatment chamber (3) is installed above the material receiving chamber (2), a crushing chamber (4) is installed above the electric heating treatment chamber (3), a feeding hole (5) is formed above the crushing chamber (4), the spraying assembly (13) is installed above the spraying treatment box (1), the spraying assembly (13) comprises a water inlet box (1301), a water inlet pipe (1302), a micro booster pump (1303), a spraying pipe (1304), a water outlet (1305) and a filter screen (1306), the water inlet pipe (1302) is arranged on two sides of the water inlet box (1301), and the micro booster pump (1303) is installed below the water inlet box (1301), the lower part of the micro booster pump (1303) is connected with a spray pipe (1304), the outer side of the spray pipe (1304) is provided with a water outlet (1305), a filter screen (1306) is fixed inside the water outlet (1305), the screen assembly (14) is installed below the inner part of the spray treatment box (1), the screen assembly (14) comprises an outer frame (1401), a telescopic spring (1402), an inner screen (1403) and a vibration motor (1404), the inner side of the outer frame (1401) is fixed with the telescopic spring (1402), the inner screen (1403) is installed on the inner side of the telescopic spring (1402), the vibration motor (1404) is installed on two sides below the inner screen (1403), an auxiliary assembly (15) is installed in the middle part of the inner part of the spray treatment box (1), and the auxiliary assembly (15) comprises a driving motor (1501), a movable rotating shaft (1502), a rotating cross rod (1503) and a loosening vertical rod (1503), the lower side of the driving motor (1501) is provided with a movable rotating shaft (1502), the bottom of the movable rotating shaft (1502) is fixedly provided with a rotating cross rod (1503), and a loosening vertical rod (1504) is vertically and fixedly arranged above the rotating cross rod (1503).

2. The system for safely remediating heavy metal cadmium polluted tidal brown soil according to claim 1, wherein a smashing assembly (6) is installed inside the smashing chamber (4), the smashing assembly (6) comprises a first motor (601), a smashing roller (602) and a smashing blade (603), the smashing roller (602) is rotatably connected with the smashing chamber (4), the smashing blade (603) is fixed outside the smashing roller (602), and the first motor (601) is installed outside two ends of the smashing roller (602).

3. The system for safely remediating heavy metal cadmium polluted tidal brown soil according to claim 1, wherein a cleaning component (7) is installed above the outside of the smashing chamber (4), the cleaning component (7) comprises a telescopic rod (701), a water injection pipe (702), a shunt pipe (703) and a cleaning spray head (704), the water injection pipe (702) is installed above the telescopic rod (701), the shunt pipe (703) is connected below the water injection pipe (702), and the cleaning spray head (704) is installed below the shunt pipe (703).

4. The safe remediation system for heavy metal cadmium polluted moisture brown soil according to claim 1, characterized in that the upper side and the lower side of the electrothermal treatment chamber (3) are provided with material ports (8), electromagnetic heating plates (9) are installed on two sides of the inner wall of the electrothermal treatment chamber (3), a stirring assembly (10) is installed inside the electrothermal treatment chamber (3), and the two outer sides of the spraying treatment box (1) are provided with a discharge pipe (16) and a drain pipe (17) from top to bottom in one step.

5. The system for safely remediating the heavy metal cadmium polluted brown soil according to claim 4, wherein the stirring assembly (10) comprises a second motor (1001), a stirring roller (1002), a rotating plate (1003), a connecting block (1004), a cleaning brush (1005) and a shovel plate (1006), the stirring roller (1002) is rotatably connected with the electrothermal treatment chamber (3), the second motor (1001) is installed at two ends of the outer part of the stirring roller (1002), the rotating plate (1003) is fixed at the outer side of the stirring roller (1002), the connecting block (1004) is fixed at the top end of the rotating plate (1003), and the cleaning brush (1005) and the shovel plate (1006) are installed at the outer side of the connecting block (1004).

6. The system for safely remediating the heavy metal cadmium polluted tidal brown soil according to claim 5, wherein an anti-adhesion assembly (11) is mounted on the surface of the shovel plate (1006), the anti-adhesion assembly (11) comprises a motor shaft (1101), a first descaling shovel (1102), a damping rotating shaft (1103) and a second descaling shovel (1104), the motor shaft (1101) is rotatably mounted on the surface of the rotating plate (1003) through an embedded motor, the first descaling shovel (1102) is fixed on the outer side of the motor shaft (1101), and the second descaling shovel (1104) is rotatably mounted on two sides of the first descaling shovel (1102) through the damping rotating shaft (1103).

7. The system for safely remediating the heavy metal cadmium polluted brown soil as claimed in claim 1, wherein a feeding assembly (12) is installed inside the material receiving chamber (2), the feeding assembly (12) comprises a servo motor (1201), a rotating shaft (1202), a threaded feeding plate (1203) and a material guide pipe (1204), the rotating shaft (1202) is arranged on the lower side of the servo motor (1201), the threaded feeding plate (1203) is fixed on the outer side of the rotating shaft (1202), the material guide pipe (1204) is embedded in the bottom wall of the material receiving chamber (2) and the upper wall of the spraying treatment box (1), and the material guide pipe (1204) penetrates through the inside of the water inlet box (1301).

8. The system for safely remediating heavy metal cadmium polluted tidal brown soil according to claim 1, wherein the water inlet tank (1301) is communicated with the spray pipes (1304), and the spray pipes (1304) are distributed at equal intervals.

9. The system for safely remediating the heavy metal cadmium polluted tide brown soil as claimed in claim 1, wherein the symmetric centers of the outer frame (1401) and the inner screen (1403) coincide with the symmetric center of the spraying treatment tank (1), and the inner screen (1403) forms an elastic structure with the outer frame (1401) through the expansion spring (1402).

10. The system for safely remediating heavy metal cadmium polluted tidal brown soil according to claim 1, wherein the auxiliary assembly (15) further comprises a telescopic sleeve (1505), an engagement spring (1506) and an anti-blocking brush (1507), the anti-blocking brush (1507) is connected to the lower part of the rotary cross bar (1503) through the telescopic sleeve (1505), and the engagement spring (1506) is installed inside the telescopic sleeve (1505).