Heavy metal contaminated soil remediation and purification device for sorghum planting

Abstract

The invention discloses a heavy metal contaminated soil remediation and purification device for sorghum planting, and relates to the field of soil remediation. A restoration and purification device for sorghum planting heavy metal contaminated soil comprises a vehicle frame, two sets of moving wheels are symmetrically and rotationally connected to the two sides of the vehicle frame, and the restoration and purification device further comprises supporting plates symmetrically arranged on the upper portions of the two sides of the vehicle frame; the first rotating shaft is rotationally connected between the two supporting plates; the plurality of rows of soil turning knives are fixedly connected to the first rotating shaft at equal intervals in a circumferential manner; when heavy metal contaminated soil is repaired, the soil below can be turned over to the upper side, the soil can become looser, the soil on the surface and the soil inside can make contact with a soil repairing agent solution, the soil repairing agent solution can be dissolved into the soil more quickly, and the soil repairing effect is improved. And compared with the prior art, the remediation effect on the soil polluted by the heavy metal can be further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of soil remediation, and in particular relates to a device for remediating and purifying heavy metal-contaminated soil in sorghum planting. Background Art

[0002] Sorghum is one of the important cereal crops cultivated by humans. It can be eaten, fed and used for brewing in daily life. It is a crop with high comprehensive utilization value. At the same time, sorghum has the characteristics of high yield and strong stress resistance. It has high research value of drought resistance. Sorghum seeds can strengthen the spleen and stop diarrhea, resolve phlegm and calm the nerves. It is mainly used to treat spleen deficiency diarrhea, cholera, indigestion, phlegm and cough, insomnia and dreaminess. From the perspective of nutritional diet, the development and utilization of sorghum resources are of great significance.

[0003] As the process of industrialization and urbanization in my country continues to accelerate, heavy metal pollution in the soil is becoming increasingly serious, and the polluted area is also expanding year by year. Heavy metals cadmium and lead are enriched, have a long retention time in the soil, are easily accumulated in the topsoil, and can be absorbed by plants. When farmland is polluted by heavy metals, in order to ensure that sorghum can grow normally after planting and to ensure yield, the soil is generally repaired and purified before sorghum planting. In the industry of repairing soil contaminated by heavy metals, there are more than 100 existing soil repair technologies and more than 10 commonly used technologies, which can be roughly divided into three methods: physical, chemical and biological. Among them, spraying drugs is a common way of soil repair, and the existing drug spraying generally sprays the soil repair agent solution directly on the surface of the soil, so that the soil has a poor absorption effect on the soil repair agent solution, thereby reducing the effect of soil repair. In view of this, the present invention is specially proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sorghum planting heavy metal contaminated soil remediation and purification device that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a sorghum planting heavy metal contaminated soil remediation and purification device, comprising a vehicle frame, two sets of moving wheels are symmetrically rotatably connected on both sides of the vehicle frame, and also comprising: support plates, symmetrically arranged above both sides of the vehicle frame; a first rotating shaft, rotatably connected between the two support plates; multiple rows of tilling knives, fixedly connected to the first rotating shaft at equal intervals around the circumference; a driving mechanism for driving the first rotating shaft to rotate, installed on one of the support plates; a liquid storage tank, fixedly connected to the upper ends of the two support plates; a suction pump, symmetrically fixedly connected to the front and rear sides of the liquid storage tank, and the liquid extraction end is connected to the liquid outlet of the liquid storage tank; a fixed plate, fixedly connected between the two support plates, and located above the tilling knives; liquid storage cavities are symmetrically opened on both sides of the fixed plate, and a plurality of nozzles are equidistantly connected to the side of the liquid storage cavity close to the tilling knife.

[0006] In order to improve the soil turning effect, further, the first rotating axis is symmetrically arranged between the two support plates, the turning knives on the two first rotating axes are staggered, and the nozzles arranged on the liquid storage chamber are respectively located between every two turning knives on the same side, and the nozzles are arranged horizontally.

[0007] Furthermore, the driving mechanism includes a driving motor, a driving gear and a driven gear. The driving motor is fixedly connected to the outer side of one of the support plates through a support plate, the driving gear is fixedly connected to the output end of the driving motor, the two first rotating shafts at one end close to the driving motor both pass through the support plate, the driven gear is fixedly connected to the one end of the first rotating shaft close to the driving motor, and the two driven gears are both meshed with the driving gear.

[0008] In order to facilitate the uniform distribution of the ingredients in the repair agent liquid in the liquid, thereby improving the uniformity of spraying the repair agent liquid on the heavy metal contaminated soil, further, two second rotating shafts are symmetrically rotatably connected in the liquid storage tank, and multiple rows of stirring rods are fixedly connected to the second rotating shafts at equal intervals in a circle, and the two second rotating shafts are respectively connected to the transmission assembly between the first rotating shafts on the same side.

[0009] Furthermore, the transmission assembly includes a transmission pulley and a transmission belt. The ends of the first rotating shaft and the second rotating shaft away from the driving mechanism respectively pass through the support plate and the liquid storage tank. The transmission pulley is fixedly connected to the first rotating shaft and the second rotating shaft respectively pass through the support plate and the liquid storage tank. The transmission belt is sleeved between the two transmission pulleys on the same side.

[0010] In order to facilitate controlling the turning depth of the soil-turning knife according to actual needs, thereby facilitating the repair of contaminated soil at different depths, further, the vehicle frame is symmetrically fixedly connected with a hydraulic telescopic rod near the support plate, the telescopic end of the hydraulic telescopic rod is fixedly connected to the support plate on the same side, and notches are symmetrically provided on both sides of the vehicle frame for use with the first rotating shaft.

[0011] In order to facilitate users to check the amount of repair agent liquid, and thus make it convenient for staff to open the upper cover through the handle and add the repair agent liquid into the liquid storage tank in time, further, a through opening is opened on one side of the liquid storage tank, a transparent plate is fixedly connected to the through opening, and the opening at the upper end of the liquid storage tank is covered with an upper cover, and a handle is fixedly connected to the upper cover.

[0012] In order to facilitate the blocking of the soil driven by the tilling knife and prevent the soil from splashing and affecting the work of the staff, the fixing plate is further arranged in an arc shape to block the soil turned by the tilling knife.

[0013] Furthermore, the front end of the vehicle frame is rotatably connected to a sleeve via a hinge seat, a threaded connecting rod is internally threadedly connected to the sleeve, and a connecting ring is fixedly connected to the upper end of the threaded connecting rod.

[0014] In order to facilitate the repair agent stored in the liquid storage tank to be fully extracted by the suction pump and improve the utilization rate of the repair agent, a conical guide surface is further provided at the lower end of the interior of the liquid storage tank.

[0015] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention cooperates with the support plate, liquid storage tank, suction pump, fixed plate, liquid storage chamber, nozzle, driving mechanism, first rotating shaft and soil turning knife and other components. When repairing soil contaminated by heavy metals, the rapidly rotating soil turning knife can not only turn the soil below to the top, but also make the soil looser, not only can the surface and internal soil be exposed to the soil remediation agent solution, but also can make the soil remediation agent solution more quickly integrated into the soil, thereby accelerating the repair of the soil. Compared with the method of directly spraying the soil remediation agent solution onto the soil surface in the prior art, the repair effect of soil contaminated by heavy metals can be further improved.

[0016] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 This is a front view schematic diagram of a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention;

[0019] Figure 2 This is a front view structural schematic diagram of a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention;

[0020] Figure 3 This is a rear view schematic diagram of a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention;

[0021] Figure 4 This is a right-side structural schematic diagram of a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of a top view of a partial structure of a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention;

[0023] Figure 6 This is a schematic structural diagram of a first rotating shaft and a soil turning knife in a sorghum planting heavy metal contaminated soil remediation and purification device proposed by the present invention.

[0024] In the figure: 1. frame; 101. moving wheel; 102. sleeve; 103. threaded connecting rod; 104. connecting ring; 2. liquid storage tank; 201. upper cover; 202. second rotating shaft; 203. stirring rod; 204. fixing plate; 205. suction pump; 206. liquid storage chamber; 207. nozzle; 208. transparent plate; 3. support plate; 301. hydraulic telescopic rod; 302. first rotating shaft; 303. soil turning knife; 304. transmission pulley; 4. driving motor; 401. driving gear; 402. driven gear. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0026] Embodiment 1:

[0027] Reference Figure 1-Figure 6, a sorghum planting heavy metal contaminated soil remediation and purification device, including a vehicle frame 1, two sets of moving wheels 101 are symmetrically connected on both sides of the vehicle frame 1 for rotation, and also includes: support plates 3, symmetrically arranged above both sides of the vehicle frame 1; a first rotating shaft 302, rotatably connected between the two support plates 3; multiple rows of tilling knives 303, fixedly connected to the first rotating shaft 302 at circumferentially equal intervals; a driving mechanism for driving the first rotating shaft 302 to rotate, installed on one of the support plates 3; a liquid storage tank 2, fixedly connected to the upper ends of the two support plates 3; a suction pump 205, symmetrically fixedly connected to the front and rear sides of the liquid storage tank 2, and the liquid extraction end is connected to the liquid outlet of the liquid storage tank 2; a fixed plate 204, fixedly connected between the two support plates 3, and located above the tilling knives 303; liquid storage chambers 206 are symmetrically opened on both sides of the fixed plate 204, and a plurality of nozzles 207 are equidistantly connected to the side of the liquid storage chamber 206 close to the tilling knife 303. The front end of the vehicle frame 1 is rotatably connected to a sleeve 102 via a hinge seat, the sleeve 102 is internally threadedly connected to a threaded connecting rod 103 , and the upper end of the threaded connecting rod 103 is fixedly connected to a connecting ring 104 .

[0028] When planting sorghum, in order to prevent the heavy metals in the soil from affecting the growth of sorghum, the soil contaminated by heavy metals must first be repaired and purified.

[0029] When the contaminated soil needs to be repaired, the staff will first push the device to the sorghum planting area to be treated, and then add the soil repair agent solution into the liquid storage tank 2, and then drive the tractor to the side of the device, and then rotate the threaded connecting rod 103 to adjust the connecting ring 104 to a suitable height, and then connect and assemble the connecting ring 104 with the traction head behind the traction tractor. After the connection is completed, the device can be towed to the land by the traction tractor for walking. While the traction tractor drives the device to move, the driving mechanism can be started to drive the first rotating shaft 302 to rotate, and the first rotating shaft 302 will drive the tilling knife 303 to rotate rapidly to turn the soil, and at the same time start the suction pump 205, and the suction pump 205 will transfer the liquid storage The soil remediation agent solution in box 2 is transported into the liquid storage chamber 206 in the fixed plate 204, and then the liquid storage chamber 206 evenly sprays the soil remediation agent solution to the soil turning knife 303 through the nozzle 207, and then the soil remediation agent solution will be immersed in the soil, and at the same time, the soil blocks stuck between every two adjacent soil turning knives 303 can be dispersed, which can not only improve the soil turning effect of the soil turning knife 303 on the soil, but also make the soil remediation agent solution can be fully integrated into the soil. Compared with the method of directly spraying the soil remediation agent solution onto the soil surface in the prior art, by turning the soil, the soil remediation agent solution can be evenly contacted with the soil contaminated by heavy metals, so that the soil remediation agent solution can be integrated into the soil faster, speeding up the repair of the soil, and effectively improving the repair effect of the soil contaminated by heavy metals.

[0030] Embodiment 2:

[0031] Reference Figure 1-Figure 6 A sorghum planting heavy metal contaminated soil remediation and purification device is basically the same as Example 1, and further, the first rotating shaft 302 is symmetrically arranged between the two support plates 3, the soil turning knives 303 on the two first rotating shafts 302 are staggered, and the nozzles 207 arranged on the liquid storage chamber 206 are respectively located between every two soil turning knives 303 on the same side, and the nozzles 207 are arranged horizontally.

[0032] The driving mechanism includes a driving motor 4, a driving gear 401 and a driven gear 402. The driving motor 4 is fixedly connected to the outer side of one of the support plates 3 through a support plate. The driving gear 401 is fixedly connected to the output end of the driving motor 4. The ends of the two first rotating shafts 302 close to the driving motor 4 both pass through the support plate 3. The driven gear 402 is fixedly connected to the ends of the first rotating shafts 302 close to the driving motor 4. The two driven gears 402 are both meshed with the driving gear 401.

[0033] When starting to work, the driving motor 4 can be started at the same time as the suction pump 205 is started, and the driving motor 4 will drive the driving gear 401 to rotate, and the driving gear 401 will drive the driven gear 402 meshing on both sides to rotate, and then the two first rotating shafts 302 will rotate synchronously, and then the two first rotating shafts 302 will drive the multiple rows of turning knives 303 connected thereto to rotate to turn the soil, so that the repair agent sprayed by the nozzle 207 can be more fully repaired by the soil contaminated by heavy metals. By making the turning knives 303 on the two first rotating shafts 302 be staggered, when the turning knives 303 turn the soil, the two first rotating shafts 302 The tilling knives 303 on the moving shaft 302 can peel off the soil blocks stuck between every two tilling knives 303 on the other side, and can also crush the stuck soil blocks, thereby further improving the soil's absorption effect on the repair agent. By making the nozzles 207 respectively located between every two tilling knives 303 on the same side and arranged horizontally, when the nozzles 207 spray out the repair agent, it can pass through between two adjacent tilling knives 303, thereby impacting the soil blocks stuck between the two tilling knives 303, which can not only fully peel off the stuck soil blocks, but also further accelerate the soil's absorption effect on the repair agent, effectively improving the repair and purification effect of heavy metal contaminated soil.

[0034] Embodiment 3:

[0035] Reference Figure 1-Figure 6 , a sorghum planting heavy metal contaminated soil remediation and purification device, is basically the same as Example 2, and further, two second rotating shafts 202 are symmetrically connected to rotate in the liquid storage tank 2, and multiple rows of stirring rods 203 are fixedly connected to the second rotating shaft 202 at equidistant intervals in a circle, and the two second rotating shafts 202 are respectively connected to the transmission assembly between the first rotating shaft 302 on the same side.

[0036] The transmission assembly includes a transmission pulley 304 and a transmission belt. The first rotating shaft 302 and the second rotating shaft 202 are respectively passed through the support plate 3 and the liquid storage tank 2 at one end away from the driving mechanism. The transmission pulley 304 is fixedly connected to the first rotating shaft 302 and the second rotating shaft 202 are respectively passed through one end of the support plate 3 and the liquid storage tank 2, and the transmission belt is sleeved between the two transmission pulleys 304 on the same side.

[0037] When the driving motor 4 drives the tiller 303 to rotate and till the soil through the first rotating shaft 302, the first rotating shaft 302 will also drive the second rotating shaft 202 to rotate through the transmission pulley 304 and the transmission belt, and the second rotating shaft 202 will drive the stirring rod 203 to rotate, so that the repair agent liquid in the liquid storage tank 2 can be stirred and mixed, so that the components in the repair agent liquid can be evenly distributed in the liquid, thereby improving the uniformity of spraying the repair agent liquid on the heavy metal contaminated soil, and effectively ensuring the repair effect of the heavy metal contaminated soil.

[0038] Embodiment 4:

[0039] Reference Figure 1-Figure 6 , a sorghum planting heavy metal contaminated soil remediation and purification device is basically the same as Example 3, and further, a hydraulic telescopic rod 301 is symmetrically fixedly connected to the position of the vehicle frame 1 near the support plate 3, and the telescopic end of the hydraulic telescopic rod 301 is fixedly connected to the support plate 3 on the same side, and notches used in conjunction with the first rotating shaft 302 are symmetrically opened on both sides of the vehicle frame 1. Through the setting of the hydraulic telescopic rod 301, when the device is pushed to the planting area for soil remediation and purification, the depth of the soil turning by the soil turning knife 303 can be controlled according to actual needs, thereby facilitating the remediation of contaminated soil at different depths, effectively improving the flexibility of the device.

[0040] A through opening is provided on one side of the liquid storage tank 2, to which a transparent plate 208 is fixedly connected. The opening at the upper end of the liquid storage tank 2 is covered with an upper cover 201, to which a handle is fixedly connected. The transparent plate 208 allows the user to check the amount of the repair agent liquid, thereby facilitating the staff to open the upper cover 201 through the handle and add the repair agent liquid into the liquid storage tank 2 in a timely manner.

[0041] Embodiment 5:

[0042] Reference Figure 1-Figure 6 , a sorghum planting heavy metal contaminated soil remediation and purification device, which is basically the same as Example 4, and further, the fixing plate 204 is arranged in an arc shape, and is used to block the soil turned by the soil turning knife 303. Figure 2 The arrangement shown can block the soil driven by the soil turning knife 303 to prevent the soil from splashing and affecting the work of the staff.

[0043] The lower end of the inner part of the liquid storage tank 2 is provided with a conical guide surface, such as Figure 2 As shown, by setting the conical guide surface, the repair agent stored in the liquid storage tank 2 can be fully extracted by the suction pump 205, thereby improving the utilization rate of the repair agent.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. A sorghum planting heavy metal contaminated soil remediation and purification device, characterized in that: The vehicle comprises a vehicle frame (1), two sides of which are symmetrically rotatably connected to two sets of moving wheels (101), and further comprises: Support plates (3) are symmetrically arranged above both sides of the vehicle frame (1); A first rotating shaft (302) rotatably connected between the two support plates (3); A plurality of rows of soil turning knives (303) are fixedly connected to the first rotating shaft (302) at equal intervals around the circumference; a driving mechanism for driving the first rotating shaft (302) to rotate, mounted on one of the supporting plates (3); A liquid storage tank (2) fixedly connected to the upper ends of the two support plates (3); A suction pump (205) is symmetrically fixedly connected to the front and rear sides of the liquid storage tank (2), and the liquid extraction end is connected to the liquid outlet of the liquid storage tank (2); A fixed plate (204) is fixedly connected between the two support plates (3) and is located above the soil turning knife (303); Liquid storage chambers (206) are symmetrically provided on both sides of the fixing plate (204), and a plurality of spray heads (207) are equidistantly connected to one side of the liquid storage chamber (206) close to the soil turning knife (303).

2. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 1 is characterized in that: The first rotating shaft (302) is symmetrically arranged between the two supporting plates (3), the tilling knives (303) on the two first rotating shafts (302) are arranged in a staggered manner, the nozzles (207) arranged on the liquid storage chamber (206) are respectively located between every two tilling knives (303) on the same side, and the nozzles (207) are arranged horizontally.

3. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 2 is characterized in that: The driving mechanism comprises a driving motor (4), a driving gear (401) and a driven gear (402); the driving motor (4) is fixedly connected to the outer side of one of the supporting plates (3) via a supporting plate; the driving gear (401) is fixedly connected to the output end of the driving motor (4); one end of the two first rotating shafts (302) close to the driving motor (4) both penetrates the supporting plate (3); the driven gear (402) is fixedly connected to one end of the first rotating shaft (302) close to the driving motor (4); and the two driven gears (402) are meshed with the driving gear (401).

4. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 2 is characterized in that: Two second rotating shafts (202) are symmetrically rotatably connected in the liquid storage tank (2), and a plurality of rows of stirring rods (203) are fixedly connected to the second rotating shafts (202) at equal intervals in a circle. The two second rotating shafts (202) are respectively connected to a transmission assembly between the first rotating shafts (302) on the same side.

5. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 4 is characterized in that: The transmission assembly comprises a transmission pulley (304) and a transmission belt; the first rotating shaft (302) and the second rotating shaft (202) have one end away from the driving mechanism that passes through the support plate (3) and the liquid storage tank (2) respectively; the transmission pulley (304) is fixedly connected to the first rotating shaft (302) and the second rotating shaft (202) have one end that passes through the support plate (3) and the liquid storage tank (2) respectively; and the transmission belt is sleeved between the two transmission pulleys (304) located on the same side.

6. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 3 is characterized in that: A hydraulic telescopic rod (301) is symmetrically fixedly connected to the vehicle frame (1) at a position close to the support plate (3); the telescopic end of the hydraulic telescopic rod (301) is fixedly connected to the support plate (3) on the same side; and notches for use with the first rotating shaft (302) are symmetrically provided on both sides of the vehicle frame (1).

7. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 1, characterized in that: A through opening is provided on one side of the liquid storage box (2), a transparent plate (208) is fixedly connected to the through opening, an upper cover (201) is covered at the opening at the upper end of the liquid storage box (2), and a handle is fixedly connected to the upper cover (201).

8. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 1, characterized in that: The fixing plate (204) is arranged in an arc shape and is used to block the soil turned over by the soil turning knife (303).

9. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 1, characterized in that: The front end of the vehicle frame (1) is rotatably connected to a sleeve (102) via a hinge seat, the sleeve (102) is internally threadedly connected to a threaded connecting rod (103), and the upper end of the threaded connecting rod (103) is fixedly connected to a connecting ring (104).

10. The device for remediating and purifying heavy metal-contaminated soil in sorghum planting according to claim 1, characterized in that: The lower inner end of the liquid storage tank (2) is provided with a conical flow guide surface.

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