CN115193899A

CN115193899A - Conveyor belt type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device

Info

Publication number: CN115193899A
Application number: CN202210799612.6A
Authority: CN
Inventors: 骆永明; 刘国明; 李�远
Original assignee: Yantai Institute of Coastal Zone Research of CAS; Institute of Soil Science of CAS
Current assignee: Yantai Institute of Coastal Zone Research of CAS; Institute of Soil Science of CAS
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-10-18
Anticipated expiration: 2042-07-06
Also published as: CN115193899B

Abstract

The invention relates to a conveyor belt type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device which comprises a magnetic particle extraction mechanism, a magnetic particle recovery assembly, a lifting adjusting device and an agricultural machine frame body, wherein the magnetic particle extraction mechanism comprises a mounting frame, a magnetic rolling shaft, a non-magnetic rolling shaft and a conveyor belt, the mounting frame is in a closed ring shape, the lower end of the mounting frame and the lower end of the lifting adjusting device are hinged to the agricultural machine frame body, the upper end of the mounting frame is supported by the lifting adjusting device, the non-magnetic rolling shaft is uniformly distributed on the L section of the lower side of the upper end of the mounting frame, the magnetic rolling shafts are uniformly distributed on the rest part of the mounting frame, the conveyor belt is wound on the magnetic rolling shaft and the non-magnetic rolling shaft in a rotating mode, and the magnetic particle recovery assembly is arranged on the agricultural machine frame body and below the upper end of the mounting frame body. The invention realizes the real-time extraction, recovery, elution and regeneration of magnetic particles in soil muddy water by utilizing the magnetism and gravity of the magnetic roller and the non-magnetic roller, simplifies the structure, reduces the energy consumption of equipment and meets the requirement of continuous operation in the field.

Description

Conveyor belt type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device

Technical Field

The invention relates to the field of soil heavy metal pollution treatment, in particular to a conveyor belt type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device.

Background

Soil heavy metal pollution can influence agricultural product quality safety, people's residence environmental safety and ecological environment safety, along with scientific and technological development, has appeared utilizing the heavy metal in the magnetic material enrichment soil among the prior art and has carried out the mode of retrieving and realizing that the heavy metal gets rid of, and this kind of repair means has adsorption efficiency height, advantages such as repair cycle is short. For example, the invention patent of China with the publication number of CN111589851B discloses a method for parallel remediation of heavy metal pollution in farmland, which comprises the steps of burying a remediation rod in soil, and doping a heavy metal capturing agent and remediation microspheres, wherein the heavy metal capturing agent captures heavy metal ions in the soil by means of the permeation of water to form insoluble matters, the remediation microspheres continuously peel off surface nutrients and simultaneously adsorb and capture the heavy metal insoluble matters through magnetism, and finally, the residual remediation microspheres and heavy metals are recovered through a magnetic field.

However, due to the diversity of soil media, the separation of magnetic materials in soil is difficult during recovery, and in the prior art, the number of agricultural equipment matched with the recovery of the magnetic materials is small. Chinese patent publication No. CN109622582A discloses a vehicle-mounted farmland soil heavy metal pollution in-situ remediation device, which comprises a push hopper for feeding a soil solution forward, a pipeline pump for lifting the soil solution after being stirred by a reducer stirrer and filtered by a filter screen to a primary magnetic recovery machine for multiple magnetic separation, so that heavy metal chelates in the soil solution are adsorbed on a magnetic drum and then hung down to a concentrate tank by a scraper device for recovery, and a secondary magnetic recovery machine for increasing the magnetic separation area. And the chinese utility model patent that the publication number of granting is CN213350172U discloses an in situ recovery unit of soil heavy metal ion adsorbent, it sets up the track into the magnetism track, the magnetism track is used for adsorbing the magnetism heavy metal ion adsorbent in the soil at the in-process of marcing, then utilize the scraper blade to scrape off the recovery with the magnetism heavy metal ion adsorbent on the track equally, nevertheless the track is marchd the in-process and need bear the weight of whole equipment, cause soil compaction and magnetic particle to bury easily, and the recovery is directly struck off on horizontal track to absorbent magnetic material, mix soil particle or other impurity easily.

In addition, the subsequent treatment needs to be considered when the magnetic materials in the soil are separated, and a Chinese patent with publication No. CN106076616B discloses a rotary magnetic rod combined type soil enrichment and purification in-situ recovery device, wherein a rotary magnetic rod group is arranged below a lifting device, a stainless steel sleeve is arranged outside the rotary magnetic rod group, and an aeration stirring device is also arranged in the device.

Disclosure of Invention

The invention aims to provide a conveyor belt type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device, which utilizes the magnetism and gravity of a magnetic roller and a non-magnetic roller to realize the real-time extraction, recovery, elution and regeneration of magnetic particles in soil muddy water, simplifies the structure, reduces the energy consumption of equipment and can meet the requirement of continuous operation in the field.

The purpose of the invention is realized by the following technical scheme:

the utility model provides an on-vehicle contaminated soil heavy metal magnetic field normal position purifier of conveyer belt, draws mechanism, magnetic grain recovery unit, lift adjusting device and agricultural machinery support body including the magnetic grain, wherein the magnetic grain draws the mechanism and includes mounting bracket, magnetism roller bearing, non-magnetism roller bearing and conveyer belt, the mounting bracket is closed cyclic annularly, just the mounting bracket lower extreme with lift adjusting device lower extreme all articulates on the agricultural machinery support body, the mounting bracket upper end is passed through lift adjusting device supports, the L section equipartition of mounting bracket upper end downside has the non-magnetism roller bearing, the all the other partial equipartitions of mounting bracket have the magnetism roller bearing, the conveyer belt rotationally the coiling in on magnetism roller bearing and the non-magnetism roller bearing, the magnetic grain recovery unit is located on the agricultural machinery support body and is located mounting bracket upper end below.

The mounting bracket that magnetic particle drawed the mechanism is including the backup pad of closed loop, be equipped with at least a roller group along width direction in the backup pad, every roller group all is including locating the non-magnetism roller bearing of mounting bracket downside L section and locating the magnetism roller bearing of the rest of mounting bracket, and every roller group surface all is around there being the conveyer belt.

The mounting bracket lower extreme is equipped with conveyer belt drive and drive magnetism roller, the drive magnetism roller outside is equipped with the tooth profile mesh of ring gear and conveyer belt inboard, just drive magnetism roller passes through the drive of conveyer belt drive rotates.

The magnetic particle recycling assembly comprises a recycling box body, a liquid pump, a drying storage box and a box rotating mechanism, wherein a plurality of cavities are arranged in the recycling box body, each cavity is provided with the liquid pump and the magnetic particle recycling sensing device, a discharge port is formed in the lower side of each cavity, the drying storage box is arranged on one side of the recycling box body, the discharge port of each cavity is driven by the box rotating mechanism to drive the recycling box body to rotate and align to the input end of the drying storage box body, a discharge control valve is arranged on the discharge port, an a pipe, a b pipe and a c pipe are arranged on the liquid pump, and the c pipe stretches into the next adjacent cavity which is sequenced according to the rotating direction.

The box rotary mechanism comprises a rotary driving device, a rotary driving gear and an annular rack, wherein the lower end of the recovery box body is rotatably installed on the agricultural machine frame body, the lower end of the recovery box body is arranged on the annular rack, the rotary driving device is fixedly arranged on the agricultural machine frame body and is arranged on the lower side of the recovery box body, and the rotary driving gear is arranged on an output shaft of the rotary driving device and meshed with the annular rack.

The lower end of each cavity of the recovery box body is provided with an inclined filter screen, the mesh diameter of the filter screen is smaller than the diameter of magnetic particles, the a pipe port of the liquid pump is arranged below the filter screen, and the b pipe port and the c pipe port are arranged above the filter screen.

Be equipped with stoving filter screen, fan and heating wire in the dry bin, the filter screen downside of drying is located to fan and heating wire, dry bin lower extreme one side opening, and the fan is located the opening part.

After the magnetic particles enter the magnetic particle recovery assembly, the magnetic particles fall into a cavity A filled with eluent firstly, after the cavity A is filled with the magnetic particles, the recovery box body rotates to enable a next cavity B filled with the eluent to be transferred to the position below an installation frame to bear the magnetic particles, meanwhile, a discharge port at the lower end of the cavity A is aligned with a drying storage box to carry out elution operation, a discharge port of the cavity A is closed during elution, the eluent enters from a pipe of a liquid pump in the cavity A, B pipes are discharged, after elution regeneration is completed, c pipes of the liquid pump in the cavity A are opened, B pipes are closed, the eluent in the cavity A is pumped into the next cavity which is arranged adjacently according to the rotation direction and has no eluent, after the eluent is completely flowed, the c pipes are closed, and a discharge port at the lower end of the cavity A is opened to enable the magnetic particles to be output.

The agricultural machinery frame body comprises a front frame body and a rear frame body, the front frame body is provided with a magnetic particle scattering device and a ploughing device, and the magnetic particle extraction mechanism and the magnetic particle recovery assembly are arranged on the rear frame body.

The front end of the front frame body is provided with a front wheel, the rear end of the front frame body is detachably connected with the front end of the rear frame body, the rear end of the rear frame body is provided with a rear wheel, and the front frame body is provided with a control system.

The invention has the advantages and positive effects that:

1. the invention utilizes the magnetism of the magnetic roller and the non-magnetic roller and the rotation of the conveyor belt to realize the extraction and recovery of magnetic particles in soil muddy water, compared with the prior agricultural machinery, the invention does not need to additionally arrange structures such as a reducing stirrer, a filter screen, a scraper device and the like, the whole structure is greatly simplified, and the invention finishes the extraction of the magnetic particles mainly through the magnetism and the gravity action and leads the magnetic particles to fall into the magnetic particle recovery component, thereby greatly reducing the whole energy consumption of the device.

2. The invention realizes the extraction of magnetic particles by utilizing the circular rotation of the conveyor belt to enter soil muddy water, can meet the requirement of continuous operation in the field and improves the recovery efficiency.

3. The magnetic particle recovery assembly can realize real-time recovery, elution and dry storage of magnetic particles, avoids secondary pollution to the restored soil, and can meet field use requirements without additional supplement of eluent for a long time because the eluent is recycled in different cavities of the recovery box body.

4. The front frame body and the rear frame body of the agricultural machine frame body can be used in a split mode or in a combined mode according to actual needs, and the agricultural machine frame body is more flexible to use.

Drawings

Figure 1 is a schematic structural view of the present invention,

figure 2 is a top view of the invention of figure 1,

FIG. 3 is a schematic structural view of the magnetic particle extracting mechanism in FIG. 1,

FIG. 4 is a schematic structural view of the magnetic particle recovery assembly of FIG. 1,

FIG. 5 is a schematic diagram showing the first operation state of the magnetic particle recycling assembly in FIG. 4,

FIG. 6 is a schematic diagram of the second operating state of the magnetic particle recycling assembly shown in FIG. 4,

FIG. 7 is a third schematic view of the magnetic particle recycling assembly in FIG. 4,

FIG. 8 is a fourth schematic view of the magnetic particle recovery assembly shown in FIG. 4,

FIG. 9 is a fifth schematic view of the magnetic particle recycling assembly shown in FIG. 4,

fig. 10 is a schematic view of the liquid pump of fig. 5.

Wherein, 1 is a magnetic particle extracting mechanism, 101 is a conveyor belt, 102 is a mounting frame, 1021 is a side beam, 1022 is a support plate, 1023 is a guide plate, 103 is a magnetic roller, 104 is a non-magnetic roller, 105 is a roller frame, 106 is a conveyor belt driving device, 1061 is a driving magnetic roller, 1062 is a transmission gear, 107 is a rear frame, 1071 is a rear wheel, 1072 is a connecting bolt, 2 is a front frame, 201 is a front wheel, 3 is a magnetic particle recycling assembly, 301 is a recycling box, 302 is a rotary driving device, 303 is a rotary driving gear, 304 is a circular rack, 305 is a rotary shaft, 306 is a filter screen, 307 is a magnetic particle recycling sensing device, 308 is a discharge port, 3081 is a discharge control valve, 309 is a drying storage tank, 3091 is a fan, 92 is an electric heating wire, 3093 is a drying filter screen, 310 is a partition board, 311 is a liquid pump, 3111 is a driving motor, 3112 is a pump body, 3113 is an on-off control valve, 4 is a magnetic particle, 5 is a control system, 6 is a magnetic particle spreading device, 601 is a magnetic particle spreading device, 7 is a rotary tillage outlet is a lifting device, and 801 is a rotary tillage base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 10, the magnetic particle extraction device comprises a magnetic particle extraction mechanism 1, a magnetic particle recovery assembly 3, a lifting adjustment device 8 and an agricultural frame, wherein the magnetic particle extraction mechanism 1 comprises an installation frame 102, a magnetic roller 103, a non-magnetic roller 104 and a conveyor belt 101, the installation frame 102 is in a closed ring shape, the lower end of the installation frame 102 and the lower end of the lifting adjustment device 8 are hinged to the agricultural frame, the upper end of the installation frame 102 is supported by the lifting adjustment device 8, as shown in fig. 1, a plurality of non-magnetic rollers 104 are arranged on L sections of the lower side of the upper end of the installation frame 102 at equal intervals, a plurality of magnetic rollers 103 are arranged on the rest of the installation frame 102 at equal intervals, the conveyor belt 101 is rotatably wound on the magnetic roller 103 and the non-magnetic roller 104, and the magnetic particle recovery assembly 3 is arranged on the agricultural frame and is arranged below the upper end of the installation frame 102. When the device works, the lower end of the mounting frame 102 is placed in flooded soil applied with magnetic particles 4, the magnetic rollers 103 at the lower end of the mounting frame 102 adsorb the magnetic particles 4 in the flooded soil and muddy water on the conveyor belt 101 through magnetic force, the range of the lower end of the conveyor belt 101 immersed in the soil and muddy water can be driven and adjusted through the lifting adjusting device 8, then the conveyor belt 101 rotates to drive the magnetic particles 4 to move upwards on the upper side of the mounting frame 102, a magnetic field is formed at the part of the mounting frame 102 provided with the magnetic rollers 103, so that the magnetic particles 4 are always adsorbed on the conveyor belt 101 in the conveying process, the arrangement density of the magnetic rollers 103 is calculated according to specific conditions, so that the magnetic particles 4 cannot fall off the conveyor belt 101, water and unadsorbed impurities on the magnetic particles 4 can automatically fall and be removed under the action of gravity in the ascending process of the magnetic particles 4, therefore, structures such as a reducing stirrer, a magnetic screen and the like are not needed to be additionally arranged for filtering, when the magnetic particles 4 rotate around the upper end of the mounting frame 102, as shown in fig. 1, the magnetic rollers 104 are arranged under the lower side of the mounting frame 102, the magnetic stirrer and the magnetic roller can not only greatly improve the efficiency of a soil recovery device, but also greatly improve the recovery efficiency of the soil recovery of the soil, and the soil recovery of the soil in the field, and the recovery of the soil. The conveyor belt 101 is a permeable magnetic conveyor belt, which is a commercially available product, the conveyor belt 101 of this embodiment is purchased from shanghai yi actual company limited, and in addition, the lifting adjusting device 8 may adopt a linear input device such as an air cylinder and an electric push rod, which is a commercially available product.

As shown in fig. 1 to 3, the mounting frame 102 of the magnetic particle extraction mechanism 1 includes a closed-loop supporting plate 1022, as shown in fig. 2, one or more rows of roller sets are disposed on the supporting plate 1022 along the width direction, each row of roller set includes a non-magnetic roller 104 disposed on a lower side L section of the mounting frame 102 and a magnetic roller 103 disposed on the rest of the mounting frame 102, and a conveyor belt 101 is wound around an outer surface of each row of roller set. As shown in fig. 3, in this embodiment, a conveyor belt driving device 106 and a driving magnetic roller 1061 are disposed at the lower end of the mounting frame 102, a gear ring is disposed at the outer side of the driving magnetic roller 1061 and is engaged with the tooth form at the inner side of the conveyor belt 101, so as to drive the conveyor belt 101 to rotate, when multiple roller groups are provided in the present invention, multiple gear rings are correspondingly disposed on the driving magnetic roller 1061, and each gear ring is engaged with the tooth form at the inner side of the corresponding conveyor belt 101, and the driving magnetic roller 1061 is driven to rotate by the conveyor belt driving device 106, so as to drive each conveyor belt 101 to rotate synchronously by each gear ring.

As shown in fig. 3, in this embodiment, the conveyor belt driving device 106 is a motor, a transmission gear 1062 is disposed on an output shaft of the motor, a driving gear is disposed at one end of the driving magnetic roller 1061 and is engaged with the transmission gear 1062, and the conveyor belt driving device 106 drives the driving magnetic roller 1061 to rotate by transmitting torque through the transmission gear 1062 and the driving gear.

As shown in fig. 2, the mounting frame 102 includes a side member 1021, two side members 1021 are respectively disposed at two sides of a support plate 1022, a hinge seat 801 is disposed on the side member 1021, and an end of a driving shaft of the elevation adjustment device 8 is hinged to the hinge seat 801 at the corresponding side.

When only one row of roller sets is arranged on the mounting frame 102, two ends of each roller in the roller sets can be respectively rotatably mounted on the corresponding side beams 1021, when a plurality of rows of roller sets are arranged on the mounting frame 102, as shown in fig. 2, a plurality of roller frames 105 are arranged on the supporting plate 1022 along the width direction, rollers in each row of roller sets are respectively mounted on the corresponding roller frames 105, and the driving magnetic rollers 1061 at the lower end of the mounting frame 102 penetrate through the lower ends of the roller frames 105 and enable the gear rings to be respectively meshed with the inner sides of the conveyor belts 101, so that the conveyor belts 101 are driven to rotate synchronously.

As shown in fig. 2, the upper ends of the side members 1021 on both sides of the mounting frame 102 are provided with guide plates 1023 folded inwards to form a guide output port for guiding the magnetic particles 4 to fall into the magnetic particle recovery module 3, so as to prevent the magnetic particles 4 from scattering outside the magnetic particle recovery module 3 during the traveling process of the agricultural equipment, and the guide plates 1023 are made of non-magnetic materials.

As shown in fig. 4 to 10, the magnetic particle recycling assembly 3 includes a recycling box 301, a liquid pump 311, a dry storage tank 309 and a box rotating mechanism, wherein a plurality of cavities are provided in the recycling box 301, and each cavity is provided with the liquid pump 311 and the magnetic particle recycling sensing device 307, a discharge port 308 is provided at a lower side of each cavity, the dry storage tank 309 is provided at one side of the recycling box 301, and the discharge port 308 of each cavity is aligned with an input end of the dry storage tank 309 by driving the recycling box 301 to rotate through the box rotating mechanism, a discharge control valve 3081 is provided at the discharge port 308, an a pipe, a pipe b pipe and a c pipe are provided on the liquid pump 311, and as shown in fig. 5, the c pipe extends into the next cavity which is adjacent to be sorted according to the rotating direction.

As shown in fig. 5 to 10, the present invention is illustrated with three cavities a, B, and C in the recovery tank 301, wherein there is eluent in the cavities a and B at the beginning, and there is no eluent in the cavity C.

As shown in fig. 5, when the cavity a rotates to a position below the guiding output port of the mounting bracket 102, the magnetic particles 4 fall into the cavity a under the action of gravity after entering the area of the non-magnetic roller 104 of the L section, when the magnetic particles 4 in the cavity a reach a set height, the magnetic particle recovery sensing device 307 senses that the cavity a is full and sends a signal to the control system, the control system controls the box rotating mechanism to start up to drive the recovery box 301 to rotate, so that the cavity B rotates to a position below the guiding output port of the mounting bracket 102 and holds the falling magnetic particles 4, at this time, as shown in fig. 6, the discharge port 308 at the lower end of the cavity a is aligned with the dry storage box 309 for elution, the discharge port 308 of the cavity a is in a closed state during elution, the eluent enters from the pipe a of the liquid pump 311 in the cavity a, and the B pipe is discharged, thereby realizing the elution and regeneration of the magnetic particles 4 recovered by the circular flow of the eluent, after the regeneration (i.e., after the circular flow is set), the C pipe of the liquid pump 311 is opened, the B pipe is closed, the eluent in the cavity a is pumped into the cavity C pipe cavity C after the clean, the eluent, the C pipe is closed, the cavity a is opened, the discharge port 308 at the lower end of the cavity a, and the magnetic particles in the dry storage box 309, as shown in fig. 7, the dry storage box 309, after the dry storage box 309 a, the eluent is completely.

As shown in fig. 8, when the cavity B is full, the recycling box 301 rotates to make the cavity C rotate to the lower part of the guiding output port, the discharge port 308 at the lower end of the cavity B is aligned with the dry storage tank 309 and performs the elution operation, similarly, the tube a of the liquid pump 311 in the cavity B enters and the tube B discharges the eluent to circularly flow to elute and regenerate the recycled magnetic particles 4, after the regeneration is completed, the tube C of the liquid pump 311 is opened and the tube B is closed, the eluent in the cavity B is pumped into the empty cavity a through the tube C, after the eluent is completely flowed, the tube C is closed and the discharge port 308 at the lower end of the cavity B is opened, the eluted magnetic particles 4 in the cavity B are output to enter the dry storage tank 309, and the cyclic elution regeneration and output of the magnetic particles 4 in each cavity are realized in a reciprocating manner. Therefore, the invention not only realizes the real-time recovery, elution and dry storage of the magnetic particles 4, but also can meet the field use requirement without additionally supplementing the eluent in a longer time because the eluent is recycled in different cavities.

As shown in fig. 10, in this embodiment, on-off control valves 3113 (electromagnetic valves) are provided on the tubes a, b, and c of the liquid pump 311 to control the opening and closing of the tubes. In addition, an impeller is arranged in a pump body 3112 in the liquid pump 311, and a driving motor 3111 is arranged outside the pump body 3112 to drive the impeller to rotate so as to pump liquid.

The magnetic particle recovery sensing device 307, the discharge control valve 3081 and the on-off control valve 3113 are all known in the art and are commercially available products.

As shown in fig. 4, in this embodiment, the box rotating mechanism includes a rotating driving device 302, a rotating driving gear 303 and an annular rack 304, wherein a rotating shaft 305 is disposed at a lower end of the recovery box 301 and rotatably mounted on the frame of the agricultural machine, the annular rack 304 is disposed at a lower end of the recovery box 301, the rotating driving device 302 is fixedly disposed on the frame of the agricultural machine and disposed at a lower side of the recovery box 301, and a rotating driving gear 303 is disposed on an output shaft of the rotating driving device 302 and engaged with the annular rack 304, and the rotating driving device 302 drives the rotating driving gear 303 to rotate and drives the recovery box 301 to rotate through the rotation of the annular rack 304.

As shown in fig. 4, the lower end of each cavity of the recovery box 301 is provided with an inclined filter screen 306, the mesh diameter of the filter screen 306 is smaller than the diameter of the magnetic particle 4, the a tube port is arranged below the filter screen 306, and the b tube port and the c tube port are arranged above the filter screen 306, so that when an eluent is input from the a tube and circularly flows, the magnetic particle 4 is blocked by the filter screen 306 and cannot enter the a tube, only the eluent is input into the a tube, and because the filter screen 306 is arranged in an inclined manner, after the discharge control valve 3081 is opened, the magnetic particle 4 which is completely eluted in the cavity rolls downwards along the inclined filter screen 306 under the action of gravity and falls into the dry storage tank 309. In addition, the liquid pump 311 and the magnetic particle recovery sensing device 307 can be installed at appropriate positions of the corresponding cavities according to actual needs.

As shown in fig. 4, in this embodiment, a drying filter screen 3093, a fan 3091 and a heating wire 3092 are arranged in the drying storage box 309, the fan 3091 and the heating wire 3092 are arranged on the lower side of the drying filter screen 3093, an opening is formed in one side of the lower end of the drying storage box 309, the fan 3091 is arranged at the opening to introduce external air, the air is heated by the heating wire 3092 after being introduced, and the eluted magnetic particles 4 are dried by the drying filter screen 3093 upwards, and the heating wire 3092 can be powered by a storage battery arranged on the agricultural machinery frame body or directly powered by a battery of the agricultural machinery equipment.

As shown in fig. 1, the agricultural frame includes a front frame body 2 and a rear frame body 107, the front end of the front frame body 2 is provided with a front wheel 201, the rear end of the rear frame body 107 is provided with a rear wheel 1071, the front end of the rear frame body 107 is connected with the rear end of the front frame body 2 through a connecting bolt 1072 or other connecting elements, the magnetic particle extraction mechanism 1 and the magnetic particle recovery assembly 3 are disposed on the rear frame body 107, the front frame body 2 is provided with a magnetic particle spreading device 6 and a rotary tillage device 7, wherein the magnetic particle spreading device 6 is used for releasing magnetic particles 4 into soil and comprises a magnetic particle mixing box body, a stirring device is disposed in the magnetic particle mixing box body, and a magnetic particle spreading outlet 601 is disposed on one side of the magnetic particle mixing box body.

The front frame body 2 and the rear frame body 107 can be used in a split mode or in a combined mode according to requirements. When the magnetic particles 4 are needed to be released, the front frame body 2 is connected with a corresponding agricultural machine (such as a tractor) and when the magnetic particles 4 are needed to be recovered, the rear frame body 107 is connected with the corresponding agricultural machine. When preceding support body 2 and back support body 107 combine to use, when release magnetic particle 4, lift adjustment device 8 drive mounting bracket 102 rotates and makes the lower extreme raise to set for the height apart from the soil surface, and the device work on preceding support body 2 is mainly this moment, and when retrieving magnetic particle 4, lift adjustment device 8 drive mounting bracket 102 rotates and realizes that magnetic particle 4 adsorbs in the muddy water that makes the lower extreme dip in the soil of flooding to magnetic particle 4 in the soil passes through earlier rotary cultivator attachment 7 turns over out, convenient follow-up absorption.

As shown in fig. 1 to 2, in the present embodiment, the control system 5 is disposed on the front frame 2, and the lifting adjusting device 8, the conveyor belt driving device 106, the motor of the turning device 7, each pipeline control valve in the magnetic particle recovery assembly 3, and the box body rotation driving device 302 are controlled by the control system 5. The control system 5 is well known in the art.

The working principle of the invention is as follows:

when the device works, the conveyor belt 101 at the lower end of the mounting frame 102 is placed in flooded soil applied with magnetic particles 4 (namely repair microspheres adsorbing heavy metals), the amplitude of the lower end of the conveyor belt 101 immersed in soil muddy water can be driven by the lifting adjusting device 8 to rotate and adjust the mounting frame 102, the magnetic roller 103 adsorbs the magnetic particles 4 in the flooded soil muddy water onto the conveyor belt 101 through magnetic force, then the conveyor belt 101 rotates to drive the adsorbed magnetic particles 4 to move upwards on the upper side of the mounting frame 102, a magnetic field is formed at the part of the mounting frame 102 provided with the magnetic roller 103 to ensure that the magnetic particles 4 are always adsorbed, in the ascending process of the magnetic particles 4, water and unadsorbed impurities on the magnetic particles 4 can automatically fall and be removed under the action of gravity, when the magnetic particles 4 rotate along with the conveyor belt 101 and pass through the upper end of the mounting frame 102, the magnetic particles 4 enter the L section provided with the non-magnetic roller 104 at the lower side of the mounting frame 102, at the moment, the magnetic field disappears, finally the magnetic particles 4 fall into the magnetic particle recovery component 3 below under the action of gravity, the magnetic particles 4 fall into the cavity A after entering the magnetic particle recovery component 3, when the cavity A is full, the control system controls the box body rotating mechanism to start the recovery box body 301 to rotate, so that the next cavity B is rotated to the lower part of the mounting frame 102 to carry the falling magnetic particles 4, meanwhile, the discharge hole 308 at the lower end of the cavity A is aligned with the drying storage box 309 and carries out elution operation, the discharge hole 308 of the cavity A is in a closed state during elution, the eluent enters from the tube a of the liquid pump 311 in the cavity A and is discharged from the tube B, thereby realizing the cyclic flow of the eluent to elute and regenerate the recovered magnetic particles 4, after the elution and regeneration are completed, the tube c of the liquid pump 311 in the cavity A is opened, the tube B is closed, the eluent in the cavity A is pumped into the next cavity which is adjacent to be sequenced according to the rotating direction through the tube c, after the eluent is completely eluted, the c tube is closed, the discharge hole 308 at the lower end of the cavity A is opened, the magnetic particles 4 are output to the drying storage tank 309, and the process is repeated when the cavity B is full, so that the magnetic particles 4 in each cavity are circularly eluted and regeneratively output.

Claims

1. The utility model provides a conveyer belt type on-vehicle contaminated soil heavy metal magnetic field normal position purifier which characterized in that: including magnetic particle extraction mechanism (1), magnetic particle recovery subassembly (3), lift adjusting device (8) and agricultural machinery support body, wherein magnetic particle extraction mechanism (1) is including mounting bracket (102), magnetism roller bearing (103), non-magnetism roller bearing (104) and conveyer belt (101), mounting bracket (102) are closed ring-type, just mounting bracket (102) lower extreme with lift adjusting device (8) lower extreme all articulates on the agricultural machinery support body, mounting bracket (102) upper end is passed through lift adjusting device (8) are supported, the L section equipartition of mounting bracket (102) upper end downside has non-magnetism roller bearing (104), mounting bracket (102) all the other part equipartitions have magnetism roller bearing (103), conveyer belt (101) rotationally the coiling in on magnetism roller bearing (103) and non-magnetism roller bearing (104), magnetic particle recovery subassembly (3) are located on the agricultural machinery support body and are located mounting bracket (102) upper end below.

2. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil, according to claim 1, is characterized in that: the mounting frame (102) of the magnetic particle extraction mechanism (1) comprises a closed-loop supporting plate (1022), at least one row of roller groups are arranged on the supporting plate (1022) along the width direction, each row of roller groups comprises a non-magnetic roller (104) arranged on the L section of the lower side of the mounting frame (102) and a magnetic roller (103) arranged on the rest part of the mounting frame (102), and a conveyor belt (101) is wound on the outer surface of each row of roller groups.

3. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil, according to claim 1, is characterized in that: the lower end of the mounting frame (102) is provided with a conveyor belt driving device (106) and a driving magnetic roller (1061), a gear ring is arranged on the outer side of the driving magnetic roller (1061) and meshed with the inner side of the conveyor belt (101), and the driving magnetic roller (1061) is driven to rotate by the conveyor belt driving device (106).

4. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil, according to claim 1, is characterized in that: magnetic particle retrieves subassembly (3) is including retrieving box (301), liquid pump (311), dry bin (309) and box rotary mechanism, wherein retrieve and be equipped with a plurality of cavitys in box (301), and every cavity all is equipped with liquid pump (311) and magnetic particle and retrieves induction system (307), and every cavity downside all is equipped with discharge gate (308), and recovery box (301) one side is located in dry bin (309), and discharge gate (308) of every cavity pass through box rotary mechanism drive is retrieved box (301) and is rotated and aims at the input of dry bin (309), be equipped with ejection of compact control valve (3081) on discharge gate (308), be equipped with a pipe, b pipe and c pipe on liquid pump (311), just the c pipe stretches into to in the next cavity adjacent according to the direction of rotation sequencing.

5. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil as claimed in claim 4, wherein: the box rotary mechanism comprises a rotary driving device (302), a rotary driving gear (303) and an annular rack (304), wherein the lower end of the recovery box body (301) is rotated and installed on the agricultural machine frame body, the lower end of the recovery box body (301) is arranged on the annular rack (304), the rotary driving device (302) is fixedly arranged on the agricultural machine frame body and is arranged on the lower side of the recovery box body (301), and the rotary driving gear (303) is arranged on an output shaft of the rotary driving device (302) and is meshed with the annular rack (304).

6. The conveyor-type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device according to claim 4, characterized in that: the lower end of each cavity of the recovery box body (301) is provided with an inclined filter screen (306), the mesh diameter of the filter screen (306) is smaller than the diameter of the magnetic particles (4), the pipe port a of the liquid pump (311) is arranged below the filter screen (306), and the pipe port b and the pipe port c are arranged above the filter screen (306).

7. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil as claimed in claim 4, wherein: be equipped with stoving filter screen (3093), fan (3091) and heating wire (3092) in dry bin (309), dry filter screen (3093) downside is located in fan (3091) and heating wire (3092), dry bin (309) lower extreme one side opening, and fan (3091) locate the opening part.

8. The conveyor-type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device according to claim 4, characterized in that: after magnetic particles (4) enter the magnetic particle recovery assembly (3), the magnetic particles fall into a cavity A filled with eluent firstly, after the cavity A is filled with the eluent, a recovery box body (301) rotates to enable a next cavity B filled with the eluent to be transferred to the lower side of an installation frame (102) to contain the magnetic particles (4), meanwhile, a discharge port (308) at the lower end of the cavity A is aligned to a dry storage box (309) to carry out elution operation, a discharge port (308) of the cavity A is closed during elution, the eluent enters from a pipe a of a liquid pump (311) in the cavity A and is discharged from a pipe B, after elution regeneration is completed, a pipe c of the liquid pump (311) in the cavity A is opened and a pipe B is closed, the eluent in the cavity A is pumped into the next cavity which is adjacent in sequence according to the rotating direction and has no eluent, after the eluent is completely flowed, the pipe c is closed, and the discharge port (308) at the lower end of the cavity A is opened to enable the magnetic particles (4) to be output.

9. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil, according to claim 1, is characterized in that: the agricultural machinery frame body comprises a front frame body (2) and a rear frame body (107), a magnetic particle scattering device (6) and a ploughing device (7) are arranged on the front frame body (2), and a magnetic particle extraction mechanism (1) and a magnetic particle recovery assembly (3) are arranged on the rear frame body (107).

10. The conveyor belt type in-situ purification device for the heavy metal magnetic field in the polluted soil, according to claim 1, is characterized in that: preceding support body (2) front end is equipped with preceding wheel (201), preceding support body (2) rear end with back support body (107) front end detachably connects, back support body (107) rear end is equipped with rear wheel (1071), be equipped with control system (5) on preceding support body (2).