Device for in-situ recovery of magnetic adsorption material from soil

Abstract

The utility model relates to the technical field of magnetic adsorption material recovery components, and discloses a device for recovering magnetic adsorption materials in situ from soil, which comprises a rotating component, a recovery component and a handrail component, the rotating component comprises a rotating shaft, two wheels arranged at two ends of the rotating shaft and a turntable arranged on the rotating shaft; the handrail assembly comprises a handrail, the handrail is connected with the rotating shaft, force is applied to the handrail to drive the wheels to rotate, then the rotating shaft is driven to rotate, and the rotating shaft rotates to drive the rotating disc to rotate; the recovery assembly comprises a magnetic bar, the magnetic bar is detachably fixed to the rotary disc, and the magnetic adsorption material in the soil is adsorbed through the magnetic bar. The rotation of the turntable enables the magnetic bar to continuously attract the magnetic adsorption material in the soil slurry through magnetic force. The in-situ recovery device can realize in-situ recovery of the magnetic adsorption material in the soil, and has the advantages of simple structure, small size, light weight, easiness in operation and the like.

Description

Technical Field

[0001] The utility model belongs to the field of magnetic adsorption material recovery, and in particular relates to a device for recovering magnetic adsorption material in situ from soil. Background Art

[0002] The rate of excessive heavy metals in my country's cultivated soils reached 19.4%, covering an area of ​​2.0×107hm2. 2 Every year, the reduction in grain production due to heavy metal pollution exceeds 1.0×107t, and the resulting losses are as high as 20 billion yuan. my country has a large population and a huge demand for grain. Safely and effectively repairing farmland contaminated by heavy metals has become an urgent environmental and social task.

[0003] At present, the remediation technologies used for heavy metal pollution in soil mainly include soil removal method, leaching technology, magnetic removal technology, electric remediation technology and biological remediation technology. Among them, magnetic removal technology mainly uses magnetic adsorption materials to combine with heavy metals in the soil. After the heavy metals are adsorbed, they are removed from the soil by magnetic force, thereby achieving the effect of removing heavy metals from the soil. It has attracted much attention because of its characteristics of being unrestricted by time and permanently removing heavy metals from the soil. In the process of applying magnetic removal technology, the recovery of magnetic adsorption materials from the soil is very important. However, there are few devices for recovering magnetic materials, and most of the devices are ex situ recovery. For example, "a device for extracting magnetic biochar from soil" disclosed by Xiao Xiaoyu et al. in Chinese invention patent CN113751194A includes a dust preparation device, a fan and a separation device, wherein the fan sucks the mixed dust in the dust preparation device into the separation device; the dust preparation device includes a tank body, a heating mechanism is provided on the outer side of the tank body, and the heating mechanism is used to dry the mixture of soil and magnetic biochar inside the tank body, and a telescopic rod is provided inside the tank body, one end of the telescopic rod passes through the middle of the upper end cover of the tank body, and a scraper mechanism is provided on one end of the telescopic rod located inside the tank body, and the scraper mechanism is used to make the dried mixture into powder. This solution can solve the problem in the prior art that when separating magnetic biochar from soil, the soil and water are not mixed sufficiently and mud blocks are easily formed, and the mud blocks will carry the magnetic biochar and discharge it from the magnetic device, resulting in poor separation effect. However, this equipment is for ex situ recovery of magnetic materials, and the soil needs to be dug up from the field and then processed, and the recovery process is relatively complicated. Although there is in-situ recovery in the prior art, such as the "in-situ recovery component of soil heavy metal ion adsorbent" disclosed by Liu Xi et al. in Chinese utility model patent CN213350172U, which includes a vehicle body and a track mechanism installed at the lower end of the vehicle body, the track mechanism includes a track and two sets of drive wheels, the two sets of drive wheels are arranged at intervals along the front and rear directions of the vehicle body and are both wrapped by the track, the track is a magnetic track, and the magnetic track is used to adsorb the magnetic heavy metal ion adsorbent in the soil during the movement, a recovery trough and a scraper are suspended at the lower end of the vehicle body, the scraper is in contact with the track and is used to scrape off the magnetic heavy metal ion adsorbent adsorbed on the outer surface of the track, and the recovery trough is used to receive the magnetic heavy metal ion adsorbent scraped off by the scraper. This scheme uses the crawler to absorb and recover the magnetic heavy metal ion adsorbent in the soil along the moving track under the drive of the driving wheel. At the same time, the scraper scrapes the magnetic heavy metal ion adsorbent adsorbed by the crawler into the recovery tank, thereby realizing the rapid in-situ recovery of the heavy metal ion adsorbent in the soil. However, the device is large in size and difficult to use in small-area farmlands such as mountains and hills. Therefore, it is very important to develop a small, simple and easy-to-operate device that can recover magnetic adsorption materials in situ. Utility Model Content

[0004] The main purpose of the utility model is to provide a device for in-situ recovery of magnetic adsorption materials from soil, aiming to solve the problem of existing recovery components with complex structures, difficult operation and the need to dig up soil from the field for treatment during repair.

[0005] In order to achieve the purpose of the utility model, the utility model provides a device for in-situ recovery of magnetic adsorption materials from soil, comprising a rotating component, a recovery component and a handrail component.

[0006] The rotating assembly includes a rotating shaft, two wheels arranged at both ends of the rotating shaft, and a rotating disk arranged on the rotating shaft;

[0007] The armrest assembly includes an armrest, and the armrest is connected to the rotating shaft. By applying force to the armrest, the wheel is driven to rotate, and then the rotating shaft is driven to rotate. The rotation of the rotating shaft will drive the rotation of the turntable;

[0008] The recovery component comprises a magnetic bar, which is detachably fixed on the turntable and is used to absorb magnetic adsorption materials in the soil.

[0009] Preferably, there are two rotating disks, which are arranged opposite to each other on the rotating shaft, and the two ends of the magnetic bar are detachably arranged on the two rotating disks.

[0010] Preferably, a plurality of magnetic bars are provided.

[0011] Preferably, a plurality of the magnetic bars are arranged on the turntable at equal intervals in the circumferential direction.

[0012] Preferably, the rotating assembly further comprises a protection rod, both ends of which are respectively arranged on the two turntables, and a protection rod is correspondingly arranged near each magnetic rod, so that the magnetic rod is protected from contacting hard objects and being damaged by the protection rod.

[0013] Preferably, the distance between the protection rod and the magnetic bar is 2-5 cm.

[0014] Preferably, between the magnetic bar and the protection rod, the protection rod is located above the magnetic bar.

[0015] Preferably, a plurality of teeth are arranged on the rotating disk, and magnetic bars are arranged on the teeth opposite to each other on the two rotating disks.

[0016] Preferably, the teeth of the turntable are evenly distributed on the turntable, and the angle between each tooth is 60°.

[0017] Preferably, the armrest assembly further comprises a support frame, which is connected to the armrest. The armrest is used to manually push the device to rotate, and the support frame is used to support the device when the device is idle.

[0018] Preferably, the armrest assembly further comprises a nut, and the armrest is connected to the rotating shaft via the nut.

[0019] Preferably, the recovery assembly further comprises a connecting rod, which is threadably connected to the magnetic rod and can be fixed on the turntable.

[0020] Preferably, the recovery component also includes a fixing nut, a fixing hole is provided on the turntable, the fixing nut is fixed on the turntable and opposite to the fixing hole, the connecting rod is hollow, and threads are provided inside and outside the connecting rod, an external thread is provided on the magnetic rod, the connecting rod is threadedly connected to the magnetic rod through the internal thread, and the external thread on the connecting rod is threadedly connected to the fixing hole and the fixing nut to fix the magnetic rod on the turntable.

[0021] The utility model provides a device for recovering magnetic adsorption materials from soil in situ through improvement, which has at least the following advantages compared with the prior art:

[0022] (1) The utility model device can recover the magnetic adsorption material in the soil through the magnetic rod arranged on the turntable. During the recovery, the heavy metals adsorbed on the magnetic adsorption material are also removed from the soil, which can effectively reduce the total amount of heavy metals in the contaminated soil.

[0023] (2) The utility model can recover the magnetic adsorption material in the soil in situ without digging the soil from the field for further processing, which is easy to operate and saves costs.

[0024] (3) The device of the utility model is small and simple and can be applied to the restoration of farmlands of different sizes and types. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a device for in-situ recovery of magnetic adsorption material from soil provided by an embodiment of the utility model;

[0027] Figure 2 It is an exploded schematic diagram of a device for in-situ recovery of magnetic adsorption material from soil provided by an embodiment of the utility model;

[0028] Figure 3 It is a schematic diagram of the rotating shaft structure in an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of fixing the magnetic rod in the embodiment of the utility model.

[0030] In the figure: 1. handrail; 2. support frame; 3. wheel; 4. long screw; 5. protection rod; 6. magnetic bar; 7. rotating shaft; 8. nut; 9. fixing nut; 10. fixing hole; 11. turntable. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model provides a device for in-situ recovery of magnetic adsorption materials from soil, which can effectively remove the total amount of heavy metals in the soil while recovering the magnetic adsorption materials.

[0033] Example 1

[0034] See also Figure 1 to Figure 4 The utility model provides a device for in-situ recovery of magnetic adsorption materials from soil, comprising a rotating assembly, a recovery assembly and a handrail assembly.

[0035] The rotating assembly includes a rotating shaft 7 and a wheel 3. The two ends of the rotating shaft 7 are respectively connected to a wheel 3. The rotation of the wheel 3 can drive the rotation of the rotating shaft 7. Two rotating disks 11 are arranged opposite to each other on the rotating shaft 7. The rotation of the rotating shaft 7 will drive the rotation of the two rotating disks 11.

[0036] The armrest assembly includes an armrest 1 , and the armrest 1 is connected to a rotating shaft 7 . The rotating shaft 7 is driven to rotate by applying force to the armrest 1 .

[0037] The recovery component includes a magnetic bar 6, which is detachably fixed between the two rotating disks 11, and the magnetic adsorption material in the soil is adsorbed by the magnetic bar 6.

[0038] In this embodiment, a protection rod 5 is fixedly disposed between the two rotating disks 11 . The protection rod 5 is disposed close to the magnetic rod 6 to protect the magnetic rod 6 from being damaged by contact with hard objects.

[0039] In this embodiment, the protection rod 5 is located 2 to 5 cm above the magnetic rod 6 .

[0040] In this embodiment, the protection rod 5 is an iron rod with a diameter of 0.5 mm. In other embodiments, the protection rod 5 may also be made of other hard materials, and the size of the protection rod 5 may also be changed according to needs.

[0041] Example 2

[0042] The utility model provides a device for recovering magnetic adsorption materials from soil in situ, comprising a rotating assembly, a recovery assembly and an armrest assembly. The rotating assembly comprises a rotating shaft 7 and a wheel 3, wherein both ends of the rotating shaft 7 are respectively connected to a wheel 3, and the rotation of the wheel 3 can drive the rotation of the rotating shaft 7, and two rotating disks 11 are arranged on the rotating shaft 7 in a relative manner, and the rotation of the rotating shaft 7 will drive the rotation of the two rotating disks 11. The armrest assembly comprises an armrest 1, wherein the armrest 1 is connected to the rotating shaft 7, and the rotating shaft 7 is driven to rotate by applying force to the armrest 1. The recovery assembly comprises a magnetic rod 6, wherein the magnetic rod 6 is detachably fixed between the two rotating disks 11, and the magnetic adsorption materials in the soil are adsorbed by the magnetic rod 6.

[0043] In this embodiment, a plurality of magnetic bars 6 are arranged at equal circumferential intervals between the two turntables 11, and a protection rod 5 is correspondingly arranged between the two turntables 11 and near each of the magnetic bars 6. The protection rod 5 is arranged to protect the magnetic bars 6 from being damaged by hard objects.

[0044] Preferably, the turntable 11 is a six-tooth turntable, the angle between each tooth of the turntable 11 is 60°, and each of the opposite teeth of the two turntables 11 is provided with a magnetic bar 6 and a protective rod 5. The number of teeth on the turntable 11 is not limited to 6, and in other embodiments, it can also be set to other values, and the number of the magnetic bars 6 and the protective rods 5 provided is not limited to 6.

[0045] Example 3

[0046] The utility model provides a device for recovering magnetic adsorption materials from soil in situ, comprising a rotating assembly, a recovery assembly and a handrail assembly. The rotating assembly comprises a rotating shaft 7 and a wheel 3, wherein both ends of the rotating shaft 7 are respectively connected to a wheel 3, and the rotation of the wheel 3 can drive the rotation of the rotating shaft 7, and two rotating disks 11 are arranged on the rotating shaft 7 in a relative manner, and the rotation of the rotating shaft 7 will drive the rotation of the two rotating disks 11. The handrail assembly comprises a handrail 1, and the handrail 1 is connected to the rotating shaft 7, and the rotating shaft 7 is driven to rotate by applying force to the handrail 1. The recovery assembly comprises a magnetic rod 6, and the magnetic rod 6 can be detachably fixed between the two rotating disks 11, and the magnetic adsorption materials in the soil are adsorbed by the magnetic rod 6.

[0047] In this embodiment, the recovery component also includes a connecting rod and a fixing nut 9, and the connecting rod is defined as a long screw 4. A plurality of fixing holes 10 are provided at relative positions of the two turntables 11 to set a plurality of magnetic rods 6. The fixing nut 9 is fixed on the turntable 11 and is opposite to the fixing hole 10. The interior of the long screw 4 is hollow, and threads are provided on the inner and outer walls of the long screw 4. The external threads can be screwed into the fixing nut 9 and the fixing hole 10. External threads are provided at both ends of the magnetic rod 6. The magnetic rod 6 can be screwed into the long screw 4 through the internal threads on the long screw 4 to fix the magnetic rod 6 on the turntable 11.

[0048] Example 4

[0049] The utility model provides a device for recovering magnetic adsorption materials from soil in situ, comprising a rotating assembly, a recovery assembly and an armrest assembly. The rotating assembly comprises a rotating shaft 7 and a wheel 3, wherein both ends of the rotating shaft 7 are respectively connected to a wheel 3, and the rotation of the wheel 3 can drive the rotation of the rotating shaft 7, and two rotating disks 11 are arranged on the rotating shaft 7 in a relative manner, and the rotation of the rotating shaft 7 will drive the rotation of the two rotating disks 11. The armrest assembly comprises an armrest 1, and the armrest 1 is connected to the rotating shaft 7, and the rotating shaft 7 is driven to rotate by applying force to the armrest 1. The recovery assembly comprises a magnetic rod 6, and the magnetic rod 6 is detachably fixed between the two rotating disks 11, and the magnetic adsorption materials in the soil are adsorbed by the magnetic rod 6.

[0050] In this embodiment, the handrail 1 is U-shaped, and the two ends of the opening of the U-shaped handrail 1 are respectively connected to the two ends of the rotating shaft 7. Preferably, the handrail 1 is connected to the rotating shaft 7 through a nut 8.

[0051] In this embodiment, the armrest assembly further includes a support frame 2, wherein the support frame 2 is connected to the armrest 1, and the support frame 2 is used to support the device when the device is idle.

[0052] The working process of the device for in-situ recovery of magnetic adsorption material from soil provided by the above embodiment of the utility model is as follows:

[0053] (1) The soil from which the magnetic adsorption material is to be recovered is irrigated with water and slurried using a rotary tiller.

[0054] (2) The magnetic bar 6 is fixed to the turntable 11 using the long screw 4 .

[0055] (3) The device is placed in the mud, and the handrail 1 is held by human power and pushed through the handrail 1, so that the wheel 3 and the rotating shaft 7 are driven to rotate in the mud. The rotating disk 11 connected to the rotating shaft 7 rotates at the same time, and the magnetic rod 6 on the rotating disk 11 can roll and attract the magnetic adsorption material in the mud.

[0056] (4) When a large amount of magnetic adsorption material is attached to the surface of the magnetic rod 6, the long screw 4 is unscrewed, the magnetic rod 6 is removed, the magnetic adsorption material on the surface is removed, and the magnetic rod 6 is installed back to the original position, and the magnetic adsorption material can be recovered.

[0057] In summary, the device for in-situ recovery of magnetic adsorption materials from soil provided by the aforementioned embodiments of the utility model uses the handrail 1 to rotate the wheel 3 and the rotating shaft 7, thereby driving the turntable 11 to rotate, so that the magnetic bars 6 fixed on the turntable 11 can be in contact with the mud, thereby adsorbing the magnetic adsorption materials in the mud, and there is no need to dig the soil from the field for processing; the magnetic bar 6 is detachably connected, and after the magnetic adsorption material is fully adsorbed on the magnetic bar 6, it can be removed to remove the magnetic adsorption material, and then reinstalled for use, the method of use is simple, and the device is lightweight.

[0058] The above is a specific description of the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A device for in-situ recovery of magnetic adsorption material from soil, characterized in that: Including rotating assembly, recovery assembly and handrail assembly, The rotating assembly includes a rotating shaft, two wheels arranged at both ends of the rotating shaft, and a rotating disk arranged on the rotating shaft; The armrest assembly includes an armrest, and the armrest is connected to the rotating shaft. By applying force to the armrest, the wheel is driven to rotate, thereby driving the rotating shaft to rotate; The recovery component comprises a magnetic bar, which is detachably fixed on the turntable and is used to absorb the magnetic adsorption material in the soil.

2. The device for in-situ recovery of magnetic adsorption material from soil according to claim 1, characterized in that: There are two rotating disks which are arranged on the rotating shaft opposite to each other, and the two ends of the magnetic rod are detachably arranged on the two rotating disks.

3. The device for in-situ recovery of magnetic adsorption material from soil according to claim 2, characterized in that: A plurality of magnetic bars are provided.

4. The device for in-situ recovery of magnetic adsorption material from soil according to claim 3, characterized in that: A plurality of magnetic bars are arranged on the turntable at equal intervals in the circumferential direction.

5. The device for in-situ recovery of magnetic adsorption material from soil according to claim 3, characterized in that: The rotating assembly also includes a protection rod, the two ends of which are respectively arranged on the two rotating disks, and a protection rod is correspondingly arranged at a position close to each magnetic rod.

6. The device for in-situ recovery of magnetic adsorption material from soil according to claim 5, characterized in that: The distance between the protection rod and the magnetic bar is 2 to 5 cm.

7. The device for in-situ recovery of magnetic adsorption material from soil according to claim 1, characterized in that: The rotating disk is provided with a plurality of teeth, and the teeth opposite to each other on the two rotating disks are both provided with magnetic bars.

8. The device for in-situ recovery of magnetic adsorption material from soil according to claim 1, characterized in that: The armrest assembly also includes a support frame connected to the armrest.

9. A device for in-situ recovery of magnetic adsorption material from soil according to any one of claims 1 to 8, characterized in that: The recovery component also includes a connecting rod, which is threadedly connected to the magnetic rod and can be fixed on the turntable.

10. The device for in-situ recovery of magnetic adsorption material from soil according to claim 9, characterized in that: The recovery component also includes a fixing nut, a fixing hole is opened on the turntable, the fixing nut is fixed on the turntable and opposite to the fixing hole, the connecting rod is hollow, and threads are opened inside and outside the connecting rod, and an external thread is opened on the magnetic rod. The connecting rod is threadedly connected to the magnetic rod through the internal thread, and the external thread on the connecting rod is threadedly connected to the fixing hole and the fixing nut.

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