CN115055501A

CN115055501A - Magnetic sheet conveying type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device

Info

Publication number: CN115055501A
Application number: CN202210799645.0A
Authority: CN
Inventors: 骆永明; 刘国明; 李�远; 涂晨
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: 2022-09-16
Anticipated expiration: 2042-07-06
Also published as: CN115055501B

Abstract

The invention relates to a magnetic sheet conveying type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device which comprises a magnetic grain extraction mechanism, a magnetic grain recovery assembly, a lifting adjusting device and an agricultural machine frame body, wherein the magnetic grain extraction mechanism comprises a mounting frame, a conveying piece, a magnetic sheet and a brush, 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 conveying piece rotates circumferentially along the closed ring of the mounting frame, the magnetic sheet is arranged on the conveying piece, the brush is arranged at the upper end of the mounting frame, and the magnetic grain recovery assembly is arranged on the agricultural machine frame body and below the upper end of the mounting frame. The invention realizes the extraction and recovery of magnetic particles by driving the magnetic sheet to move by the conveying piece, improves the density and area of magnetic particle adsorption, and meets the requirement of continuous operation in the field.

Description

Magnetic sheet conveying 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 magnetic sheet transmission 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 in china with the publication number of CN111589851B discloses a method for repairing heavy metal pollution in farmland in parallel, which comprises burying a repairing rod in soil, and doping with a heavy metal capturing agent and repairing microspheres, wherein the heavy metal capturing agent captures heavy metal ions in the soil by the permeation of water to form insoluble matters, the repairing microspheres continuously peel off surface nutrients and simultaneously adsorb and capture the heavy metal insoluble matters through magnetism, and finally recovering the residual repairing microspheres and heavy metals through a magnetic field.

However, due to the diversity of soil media, the separation of magnetic materials in the soil is difficult during the recovery, and in the prior art, the number of agricultural equipment matched with the magnetic materials for recovery is small. The Chinese patent with publication number CN109622582A discloses a vehicle-mounted farmland soil heavy metal pollution in-situ remediation device, which comprises the steps of firstly utilizing a push hopper to feed soil solution forwards, lifting the soil solution to a primary magnetic recovery machine for multiple magnetic separation after the soil solution is stirred by a reducing stirrer and filtered by a filter screen, enabling heavy metal chelates in the soil solution to be adsorbed on a magnetic roller, and then hanging down to a concentrate tank by a scraper device for recovery, and meanwhile, the device is also provided with a secondary magnetic recovery machine to increase the magnetic separation area, but the device is too complex in structure and high in energy consumption.

In addition, the subsequent treatment is also considered when the magnetic material in the soil is separated, the Chinese patent with the publication number of CN106076616B discloses a rotary magnetic rod combined soil enrichment and purification in-situ recovery device, a rotary magnetic bar group is arranged below the lifting device, a stainless steel sleeve is arranged outside the rotary magnetic bar group, and the device is also provided with an aeration stirring device, when in use, the air compressor in the aeration stirring device is started to input compressed air into the stirring pipe, the compressed air escapes from the air holes on the stirring pipe to generate bubbles in the slurry and stir the slurry so as to prevent the magnetic material from precipitating, and the rotary magnetic bar group rotates to adsorb the magnetic material, the device is also complicated in structure and high in energy consumption, and when the attracted magnetic material reaches a certain amount, the rotary magnetic rod sleeve needs to be detached to be unloaded in a separate unloading area, and real-time recovery cannot be carried out.

Disclosure of Invention

The invention aims to provide a magnetic sheet conveying type vehicle-mounted polluted soil heavy metal magnetic field in-situ purification device, which utilizes a conveying piece to drive a magnetic sheet to move so as to realize extraction and recovery of magnetic particles, can improve the density and area of magnetic particle adsorption, further improve the recovery efficiency and meet the field continuous operation requirement.

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 magnetic sheet conveying formula, draws mechanism, magnetic grain recovery subassembly, lift adjustment device and agricultural machinery support body including the magnetic grain, wherein the magnetic grain draws the mechanism and includes mounting bracket, conveying piece, magnetic sheet and brush, the mounting bracket is closed cyclic annularly, just the mounting bracket lower extreme with lift adjustment device lower extreme all articulates on the agricultural machinery support body, the mounting bracket upper end is passed through lift adjustment device supports, conveying piece along the closed loop circumferential direction of mounting bracket, just be equipped with the magnetic sheet on the conveying piece perpendicularly, the mounting bracket upper end is equipped with the brush, and the magnetic grain recovery subassembly is located on the agricultural machinery support body and is located mounting bracket upper end below.

The conveying device is characterized in that a driving wheel shaft and a conveying piece driving device are arranged at the lower end of the mounting frame, a driven wheel shaft is arranged at the upper end of the mounting frame, a driving wheel is arranged on the driving wheel shaft, a driven wheel is arranged on the driven wheel shaft, one end of the conveying piece bypasses the corresponding driving wheel, the other end of the conveying piece bypasses the corresponding driven wheel, and the driving wheel shaft is driven to rotate by the conveying piece driving device.

The conveying piece is a conveying chain, the driving wheel on the driving wheel shaft and the driven wheel on the driven wheel shaft are chain wheels, and each chain section of the conveying chain is provided with a magnetic sheet.

The conveying piece is a conveying belt, a driving wheel on a driving wheel shaft and a driven wheel on a driven wheel shaft are belt wheels, and magnetic sheets are arranged on the conveying belt.

The upper end of the mounting frame is provided with a support, the hairbrush is mounted on the support, the shaft end of the driven shaft is provided with a hairbrush driving wheel, the shaft end of the rotating shaft of the hairbrush is provided with a hairbrush driven wheel, and the hairbrush driving wheel is connected with the hairbrush driven wheel through a hairbrush transmission part.

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 port a of the tube of the liquid pump is arranged below the filter screen, and the port b and the port c of the tube 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 eluent, a recovery box body rotates to enable a next cavity B filled with the eluent to be transferred to the lower portion of 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 a of a liquid pump in the cavity A and is discharged from a pipe B, after elution regeneration is completed, a pipe c of the liquid pump in the cavity A is opened, 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 rotation direction and has no eluent through the pipe c, after the eluent is completely flowed, the pipe c is closed, and the discharge port at the lower end of the cavity A is opened to enable the magnetic particles to be output.

The agricultural machine 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; preceding support body front end is equipped with preceding wheel, preceding support body rear end with back support body front end detachably connects, back support body rear end is equipped with the rear wheel, be equipped with control system on the preceding support body.

The invention has the advantages and positive effects that:

1. the magnetic particle extraction and recovery device utilizes the conveying piece to drive the magnetic sheet to move so as to realize extraction and recovery of magnetic particles, improves the density and area of magnetic particle adsorption, further improves the recovery efficiency, and also meets the requirement of continuous field operation because the conveying piece drives the magnetic sheet to circularly rotate and continuously enter soil muddy water so as to realize extraction of the magnetic particles.

2. In the process of rising the magnetic particles, the water and the unadsorbed impurities on the magnetic particles can automatically fall and be removed under the action of gravity, so that structures such as a reducing stirrer, a filter screen and the like do not need to be additionally arranged for filtering, the equipment structure is simplified, and the energy consumption is reduced.

3. The magnetic particle recovery assembly can realize real-time recovery, elution and dry storage of magnetic particles, avoids secondary pollution to the repaired soil, and can meet field use requirements without additional supplement of eluent in a longer 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 view of a conveyor of the magnetic particle extraction mechanism of FIG. 3,

figure 5 is a schematic view of the conveyor of figure 4 in another magnetic sheet configuration,

FIG. 6 is a schematic view showing a state where magnetic particles are adsorbed to the magnetic sheet of FIG. 5,

figure 7 is a schematic view of another conveyor configuration of the magnetic particle extraction mechanism of figure 3,

figure 8 is a schematic view of the transfer member of figure 7 in another magnetic sheet configuration,

FIG. 9 is a schematic view showing a state where magnetic particles are adsorbed to the magnetic sheet of FIG. 8,

FIG. 10 is a schematic view of the magnetic particle recovery assembly of FIG. 1,

FIG. 11 is a first schematic view of the magnetic particle recycling assembly of FIG. 10,

FIG. 12 is a second schematic view of the magnetic particle recycling assembly shown in FIG. 10,

FIG. 13 is a third schematic view of the magnetic particle recycling assembly of FIG. 10,

figure 14 is a fourth schematic view of the magnetic particle recovery assembly of figure 10 in an operating state,

FIG. 15 is a fifth schematic view of the magnetic particle recycling assembly of FIG. 10,

fig. 16 is a schematic view of the liquid pump of fig. 11.

Wherein, 1 is a magnetic particle extracting mechanism, 101 is a driving wheel, 102 is a mounting rack, 103 is a driven wheel, 104 is a magnetic sheet, 105 is a conveying member, 106 is a conveying member driving device, 107 is a rear frame body, 1071 is a rear wheel, 1072 is a connecting bolt, 108 is a brush, 109 is a brush transmission member, 2 is a front frame body, 201 is a front wheel, 3 is a magnetic particle recovering component, 301 is a recovering box body, 302 is a rotary driving device, 303 is a rotary driving gear, 304 is an annular rack, 305 is a rotary shaft, 306 is a filter screen, 307 is a magnetic particle recovering sensing device, 308 is a discharge port, 3081 is a discharge control valve, 309 is a dry storage tank, 3091 is a fan, 3092 is an electric heating wire, 31193 is a drying filter screen, 310 is a partition board, 311 is a liquid pump, 3111 is a driving motor, 2 is a pump body, 3 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 outlet, 7 is a rotary tillage device, and 8 is a lifting adjusting device.

Detailed Description

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

As shown in fig. 1 to 16, the magnetic particle recovery device comprises a magnetic particle extraction mechanism 1, a magnetic particle recovery component 3, a lifting adjusting device 8 and an agricultural machine frame body, wherein the magnetic particle extraction mechanism 1 comprises an installation frame 102, a conveying member 105, a magnetic sheet 104 and a magnetic brush 108, 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 adjusting device 8 are hinged to the agricultural machine frame body, the upper end of the installation frame 102 is supported by the lifting adjusting device 8, the conveying member 105 circumferentially rotates along a closed loop of the installation frame 102, the magnetic sheet 104 is arranged on the conveying member 105, the upper end of the installation frame 102 is provided with the magnetic brush 108, and the magnetic particle recovery component 3 is arranged on the agricultural machine frame body and below the upper end of the installation frame 102. When the device works, the lower end of the mounting frame 102 is immersed into muddy water of flooded soil, the immersion range of the lower end of the mounting frame 102 is driven and adjusted by the lifting adjusting device 8, the magnetic sheet 104 on the conveying piece 105 at the lower end of the mounting frame 102 adsorbs the magnetic particles 4 in the muddy water, then the conveying piece 105 rotates to drive the adsorbed magnetic particles 4 to ascend and move on the upper side of the mounting frame 102 until the magnetic sheet 104 bypasses the upper end of the mounting frame 102 to be in contact with the brush 108, and the brush 108 brushes the magnetic particles 4 on the magnetic sheet 104 to the magnetic particle recovery component 3 below. As shown in fig. 2 to 3, according to the invention, a plurality of rows of magnetic sheets 104 can be arranged on the mounting frame 102 according to actual needs, each row of magnetic sheets 104 is inserted into soil muddy water when rotating to the lower end of the mounting frame 102, so that the adsorption density of the magnetic particles 4 can be improved, and as shown in fig. 6 and 9, both sides of each magnetic sheet 104 can adsorb the magnetic particles 4, so that the adsorption area of the magnetic particles 4 can be increased, further the recovery efficiency is improved, and the conveying member 105 circularly rotates to enter the soil muddy water continuously to realize the extraction of the magnetic particles 4, so that the field continuous operation requirements are met, and in the rising process of the magnetic particles 4, moisture on the magnetic particles 4 and unadsorbed impurities can automatically fall and be removed under the action of gravity, so that structures such as a reducing stirrer, a filter screen and the like do not need to be additionally arranged for filtering, the equipment structure is simplified, and the energy consumption is reduced. In this embodiment, the lifting adjusting device 8 may adopt a linear output device such as an air cylinder and an electric push rod, two sides of the mounting frame 102 are provided with hinged seats, and an output shaft of the lifting adjusting device 8 is hinged to the hinged seat on the corresponding side.

As shown in fig. 1 to 3, in this embodiment, a driving wheel shaft and a conveying member driving device 106 are disposed at a lower end of the mounting frame 102, a driven wheel shaft is disposed at an upper end of the mounting frame 102, a driving wheel 101 is disposed on the driving wheel shaft, a driven wheel 103 is disposed on the driven wheel shaft, one end of the conveying member 105 bypasses the corresponding driving wheel 101, and the other end bypasses the corresponding driven wheel 103, and the driving wheel shaft is driven to rotate by the conveying member driving device 106, so as to drive the conveying member 105 to rotate. The utility model discloses a brush, including mounting bracket 102, brush 108, driven shaft, brush driving wheel, conveyer 105, as shown in figure 1, the axle head of driven shaft is equipped with the brush action wheel, the pivot axle head of brush 108 is equipped with the brush and follows the driving wheel, just the brush action wheel through a brush driving member 9 with the brush links to each other from the driving wheel, the driven shaft passes through promptly the torque drive brush 108 of brush driving member 9 transmission is rotatory to as shown in figure 1, brush 108 direction of rotation is opposite with conveyer 105 direction of rotation, in order to realize downwards brushing down magnetic particle 4 mesh. The driving device 106 of the conveying member is a motor, and the brush driving member 9, the brush driving wheel and the brush driven wheel can adopt a chain wheel and chain structure or a driving belt and belt wheel structure.

The transmission member 105 can be selected from different element structures according to actual needs, and the magnetic sheet 104 can also be selected from different shape structures according to actual needs.

As shown in fig. 4 to 6, in an embodiment of the present invention, the transmission member 105 is a transmission chain, in which the driving wheel 101 on the driving wheel shaft and the driven wheel 103 on the driven wheel shaft are both chain wheels, a magnetic sheet 104 is disposed on each chain link of the transmission chain, and the magnetic sheet 104 may be in a semicircular structure or a fan-shaped structure as required. As shown in fig. 2 to 3, in this embodiment, a plurality of transmission chains may be disposed on the mounting frame 102, so as to achieve the purpose of arranging a plurality of rows of magnetic sheets 104, and two ends of each transmission chain respectively bypass the corresponding driving wheel 101 and the corresponding driven wheel 103, and are driven by the driving wheel shaft to rotate synchronously.

In another embodiment of the present invention, as shown in fig. 7 to 9, the transmission member 105 is a transmission belt, in which the driving wheel 101 on the driving wheel shaft and the driven wheel 103 on the driven wheel shaft are both pulleys, the transmission belt is provided with a fixing element (e.g. a fixing shaft), the magnetic sheet 104 is fixed on the fixing element at the lower end, and the magnetic sheet 104 may also be in a semicircular structure or a fan-shaped structure as required. As shown in fig. 2 to 3, in this embodiment, only one conveyor belt may be provided, and a plurality of rows of magnetic sheets 104 are provided on the conveyor belt, or a plurality of conveyor belts may be provided in this embodiment, and each conveyor belt is provided with a magnetic sheet 104, so as to form a layout of the plurality of rows of magnetic sheets 104.

As shown in fig. 10 to 16, the magnetic particle recycling assembly 3 includes a recycling box 301, a liquid pump 311, a drying storage tank 309 and a box rotating mechanism, wherein a plurality of cavities are provided in the recycling box 301, 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 drying storage tank 309 is provided at one side of the recycling box 301, the discharge port 308 of each cavity is aligned to an input end of the drying storage tank 309 through the box rotating mechanism driving the recycling box 301 to rotate, a discharge control valve 3081 is provided at the discharge port 308, an a pipe, a 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. According to the invention, a recovery hopper can be arranged above the recovery box body 301 to gather magnetic particles 4 into any cavity in the recovery box body 301, the recovery hopper does not rotate along with the recovery box body 301, but when one cavity in the recovery box body 301 rotates to the position below the mounting frame 102, the magnetic particles 4 in the recovery hopper automatically fall into the cavity.

As shown in fig. 10 to 16, the present invention is illustrated with A, B, C three cavities in the recovery box 301, wherein there are eluents in the cavities a and B at the beginning, and there is no eluent in the cavity C.

As shown in fig. 11, when the cavity a rotates to a position below the upper end of the mounting frame 102, the magnetic particles 4 fall into the cavity a under the action of gravity after entering the release baffle area, 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 to drive the recovery box 301 to rotate, so that the cavity B rotates to a position below the upper end of the mounting frame 102 and holds the falling magnetic particles 4, at this time, as shown in fig. 12, the discharge port 308 at the lower end of the cavity a is aligned with the dry storage box 309 and performs an elution operation, the discharge port 308 of the cavity a is in a closed state during elution, and the eluent enters from the pipe a and the pipe B of the liquid pump 311 in the cavity a and is discharged from the pipe B, thereby realizing that the cyclic flow of the eluent elutes and regenerates the recovered magnetic particles 4, after the regeneration is completed (i.e. after the cycle flow is set time), the C tube of the liquid pump 311 is opened, the b tube is closed, the eluent in the cavity a is pumped into the cavity C through the C tube, after the eluent is completely flowed, the C tube is closed and the discharge hole 308 at the lower end of the cavity a is opened, as shown in fig. 13, the magnetic particles 4 which are completely eluted in the cavity a are output to the drying storage tank 309.

As shown in fig. 14, when the cavity B is full, the recycling box 301 rotates to make the cavity C rotate to the lower side of the upper end of the mounting frame 102, the discharge hole 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 and the tube B of the liquid pump 311 in the cavity B enter and discharge 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, 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, the discharge hole 308 at the lower end of the cavity B is opened, the eluted magnetic particles 4 in the cavity B are output to the dry storage tank 309, and the cyclic elution regeneration and output of the magnetic particles 4 in each cavity are repeatedly realized. 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. 16, 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 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. 10, 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. 10, 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. 10, in this embodiment, be equipped with stoving filter screen 3093, fan 3091 and heating wire 3092 in the dry bin 309, dry filter screen 3093 downside is located to fan 3091 and heating wire 3092, dry bin 309 lower extreme one side opening, and fan 3091 locates the opening part is introduced external air, heats and upwards dries the magnetic particle 4 after the elution through stoving filter screen 3093 through heating wire 3092 after the air is introduced, heating wire 3092 accessible is located the battery power supply on the agricultural machinery frame body, perhaps directly passes through the agricultural machinery battery power supply.

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 arranged 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 arranged in the magnetic particle mixing box body, one side of the magnetic particle mixing box body is provided with a magnetic particle spreading outlet 601, when the present invention is used, the stirring device in the magnetic particle spreading device 6 mixes and stirs magnetic particles 4 and soil solution and then is released uniformly through the magnetic particle spreading outlet 601, the stirring device can adopt a stirring impeller structure driven by a motor, this is a technique known in the art, and in this embodiment, the rotary tillage device 7 is a motor-driven rotary tillage blade, which is also known in the art, and the rotary tillage device 7 can place the magnetic particles 4 in a deeper soil layer when releasing the magnetic particles 4, and can turn the magnetic particles 4 out to facilitate magnetic adsorption when recovering the magnetic particles 4.

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. 1-2, in the present embodiment, the control system 5 is disposed on the front frame 2, and the lifting adjusting device 8, the conveying member driving device 106, the motor of the turnover 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 lower end of the mounting frame 102 is immersed into flooded soil applied with magnetic particles 4 (namely repair microspheres adsorbing heavy metals), the immersion range of the lower end of the mounting frame 102 is driven and adjusted by the lifting adjusting device 8, the magnetic sheet 104 on the conveying piece 105 at the lower end of the mounting frame 102 adsorbs the magnetic particles 4 in the muddy water, then the conveying piece 105 rotates to drive the adsorbed magnetic particles 4 to ascend and move on the upper side of the mounting frame 102 until the magnetic sheet 104 bypasses the upper end of the mounting frame 102 to be in contact with the brush 108, and the brush 108 brushes the magnetic particles 4 on the magnetic sheet 104 to the magnetic particle recovery assembly 3 below.

When the magnetic particles 4 enter the magnetic particle recovery component 3 and fall into the cavity a, when the cavity a is full, the control system controls the box rotating mechanism to start the driving recovery box 301 to rotate, so that the next cavity B is rotated to the position below 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 to carry out elution operation, the discharge hole 308 of the cavity a is in a closed state during elution, the eluent is discharged from the pipe a and the pipe B of the liquid pump 311 in the cavity a, 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 pipe c of the liquid pump 311 in the cavity a is opened, the pipe B is closed, the eluent in the cavity a is pumped into the next adjacent cavity sequenced in the rotating direction through the pipe c, after the eluent is completely flowed, the pipe c is closed, and the discharge hole 308 at the lower end of the cavity a is opened to output the magnetic particles 4 to the drying storage box 309, and when the cavity B is full, the process is repeated, and the magnetic particles 4 in each cavity are circularly eluted, regenerated and output in such a way.

As shown in fig. 2 to 3, in the invention, a plurality of rows of magnetic sheets 104 can be arranged on the mounting frame 102, and the magnetic sheets 104 are inserted into soil muddy water when rotating to the lower end of the mounting frame 102, so that the adsorption density of the magnetic particles 4 is improved, and as shown in fig. 6 and 9, both sides of the magnetic sheets 104 can adsorb the magnetic particles 4, so that the adsorption area of the magnetic particles 4 is increased, and further the recovery efficiency is improved, and the conveying member 105 circularly rotates to enter the soil muddy water continuously to realize the extraction of the magnetic particles 4, so that the field continuous operation requirement is met, and in the rising process of the magnetic particles 4, moisture on the magnetic particles 4 and unadsorbed impurities can automatically fall and be removed under the action of gravity, so that structures such as a reducing stirrer and a filter screen are not additionally arranged for filtering, and the equipment structure is simplified.

Claims

1. The utility model provides a magnetic sheet conveying formula vehicle-mounted pollutes soil heavy metal magnetic field normal position purifier which characterized in that: draw mechanism (1), magnetic particle recovery subassembly (3), lift adjustment device (8) and agricultural machinery support body including magnetic particle, wherein magnetic particle draws mechanism (1) and includes mounting bracket (102), conveying piece (105), magnetic sheet (104) and brush (108), mounting bracket (102) are closed ring-type, just mounting bracket (102) lower extreme with lift adjustment device (8) lower extreme all articulates on the agricultural machinery support body, mounting bracket (102) upper end is passed through lift adjustment device (8) are supported, conveying piece (105) along the closed loop circumferential direction of mounting bracket (102), just be equipped with perpendicularly on conveying piece (105) magnetic sheet (104), mounting bracket (102) upper end is equipped with brush (108), and magnetic particle recovery subassembly (3) are located on the agricultural machinery support body and are located mounting bracket (102) upper end below.

2. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by claim 1, is characterized in that: mounting bracket (102) lower extreme is equipped with driving wheel axle and conveying member drive arrangement (106), mounting bracket (102) upper end is equipped with the trailing axle, be equipped with drive wheel (101) on the driving wheel axle, be equipped with on the trailing axle from driving wheel (103), just conveying member (105) one end is walked around corresponding drive wheel (101), and the other end is walked around corresponding from driving wheel (103), the driving wheel axle passes through conveying member drive arrangement (106) drive rotation.

3. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is characterized in that: the conveying piece (105) is a conveying chain, a driving wheel (101) on a driving wheel shaft and a driven wheel (103) on a driven wheel shaft are chain wheels, and each chain link of the conveying chain is provided with a magnetic sheet (104).

4. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is characterized in that: the conveying piece (105) is a conveying belt, a driving wheel (101) on a driving wheel shaft and a driven wheel (103) on a driven wheel shaft are belt wheels, and a magnetic sheet (104) is arranged on the conveying belt.

5. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is characterized in that: the upper end of the mounting frame (102) is provided with a support, the brush (108) is mounted on the support, the shaft end of the driven wheel shaft is provided with a brush driving wheel, the shaft end of a rotating shaft of the brush (108) is provided with a brush driven wheel, and the brush driving wheel is connected with the brush driven wheel through a brush transmission part (9).

6. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by 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 is equipped with a plurality of cavitys in retrieving 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 aim 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.

7. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by claim 6, is characterized in that: 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).

8. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by claim 6, is 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 that of the magnetic particles (4), the a pipe port of the liquid pump (311) is arranged below the filter screen (306), and the b pipe port and the c pipe port are arranged above the filter screen (306); 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.

9. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by claim 6, is 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.

10. The magnetic sheet conveying type in-situ purification device for the heavy metal magnetic field in the polluted soil, which is disclosed by claim 1, is characterized in that: the agricultural machinery frame body comprises a front frame body (2) and a rear frame body (107), the front frame body (2) is provided with a magnetic particle scattering device (6) and a ploughing device (7), and the magnetic particle extraction mechanism (1) and the magnetic particle recovery assembly (3) are arranged on the rear frame body (107); 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).