Soil heavy metal magnetic separation recoverer

Abstract

The invention discloses a soil heavy metal magnetic separation recoverer, and relates to the technical field of soil remediation, the soil heavy metal magnetic separation recoverer comprises a main body assembly, the main body assembly comprises a water storage tank, a magnetic roller is arranged in the water storage tank, a rotating column is fixed to one side of the magnetic roller, a motor is arranged at the end of the rotating column, and a drainage groove and a collection groove are formed in the two sides of the water storage tank respectively; the cleaning assembly is arranged on one side of the magnetic roller and comprises a cleaning part, the cleaning part comprises a scraping plate located on one side of the magnetic roller, a supporting column is fixed in the scraping plate, a supporting plate is fixed to the top of the water storage tank, and the end of the scraping plate is inclined and makes intermittent contact with the magnetic roller. The magnetic roller cleaning device has the beneficial effects that the surface of the magnetic roller is intermittently cleaned through the cleaning assembly, continuous friction and abrasion of the continuous scraping plate on the working surface of the magnetic roller can be effectively avoided, disturbance to light and fine magnetic heavy metal particles adsorbed on the roller surface is reduced, and the particle loss rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of soil remediation technology, and in particular to a magnetic separation and recovery device for heavy metals in soil. Background Technology

[0002] With the acceleration of industrialization and urbanization, human activities such as mining, smelting, and electroplating have led to a large amount of heavy metals entering the soil, causing serious soil heavy metal pollution. Heavy metals are difficult to degrade, bioaccumulate, and are biotoxic. They not only damage the soil ecological structure and affect crop growth, but also accumulate through the food chain and endanger human health. Therefore, the remediation and treatment of soil heavy metal pollution is urgent.

[0003] Currently, among soil heavy metal remediation technologies, magnetic separation is widely used in soil remediation scenarios containing magnetic heavy metal minerals due to its advantages such as no secondary pollution, high processing efficiency, and low energy consumption. Among them, wet magnetic separators have become core equipment because of their excellent separation effect on light and fine magnetic particles in soil and their suitability for wet soil treatment conditions. They generate a magnetic field through magnetic rollers to adsorb and separate magnetic heavy metal particles embedded in the soil, thereby achieving the separation and recovery of heavy metals from the soil matrix and soil purification.

[0004] In practical applications, the magnetic rollers of wet magnetic separators are prone to surface contamination. This contamination mainly consists of clay, fine particulate impurities, and unseparated non-magnetic deposits from the soil. The presence of contamination leads to a significant decrease in the magnetic flux on the surface of the magnetic roller and a marked reduction in magnetic adsorption capacity. This results in the inability to effectively adsorb magnetic heavy metal particles in the soil, causing heavy metals to be missed and reducing the effectiveness of soil remediation and the efficiency of heavy metal recovery. Existing methods for treating contamination mostly involve continuous scraping or water spraying. The continuous friction between the scraper and the roller surface wears down the working surface of the magnetic roller, and gaps are easily formed between the scraper and the roller surface, resulting in incomplete removal of stubborn contamination. Water spraying is also ineffective in cleaning stubborn contamination, leading to contamination residue. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above and / or existing soil heavy metal magnetic separation and recovery devices, the present invention is proposed.

[0007] Therefore, the problem that this invention aims to solve is that during the cleaning process of magnetic rollers, the working surface of the magnetic rollers will be worn and the dirt will not be completely removed.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a soil heavy metal magnetic separation and recovery device, which includes a main component, including a water storage tank, a magnetic roller is provided inside the water storage tank, a rotating column is fixed on one side of the magnetic roller, a motor is provided at the end of the rotating column, and a drainage trough and a collection trough are respectively provided on both sides of the water storage tank. A cleaning assembly, disposed on one side of the magnetic roller, includes a cleaning component, the cleaning component including a scraper located on one side of the magnetic roller, a support column fixed inside the scraper, a support plate fixed on the top of the water tank, and the end of the scraper being inclined and intermittently contacting the magnetic roller. The cleaning assembly further includes a movable component and a transmission component. The movable component is disposed on the outside of the support column and is used to drive the support column and the scraper to rotate. The transmission component is located on one side of the movable component and is used to drive the movable component to rotate and move.

[0009] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, the movable component includes a movable sleeve sleeved on the outside of the support column, a first fixed shaft is fixed inside the movable sleeve, a first spiral groove and a sliding groove are provided on the support column, and the first fixed shaft slides in the first spiral groove.

[0010] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, a positioning plate is fixed at the bottom of the movable sleeve, a positioning column is fixed on one side of the support plate, the positioning column passes through the positioning plate and is movably connected to the positioning plate, a first spring is fixed on one side of the positioning plate, and the other end of the first spring is fixed to the support plate.

[0011] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, the transmission component includes a first gear sleeved on the outside of the movable sleeve, a second fixed shaft fixed inside the first gear, a second spiral groove and a reset groove opened on the movable sleeve, the second fixed shaft sliding in the second spiral groove, a support frame fixed on the top of the support plate, and the first gear rotatably connected to the support frame through a bearing.

[0012] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, a second gear is provided on one side of the first gear, a third gear is fixed on one side of the second gear, the second gear and the third gear are both provided on the top of the water storage tank through a rotating support frame, a fixed rod is fixed on the top of the water storage tank, a rotating column is rotatably connected inside the fixed rod, a fourth gear and a pulley are fixed on the outside of the rotating column, and the pulley is connected to the rotating column through a belt.

[0013] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, the cleaning component further includes a delaying element, the delaying element including a piston fixed to the end of the positioning column, a fixing sleeve fixed to one side of the positioning plate, the piston being movably connected to the fixing sleeve, a venting groove being provided on one side of the fixing sleeve, a stop block being hinged to one side of the fixing sleeve, and a venting hole being provided on the stop block.

[0014] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, the cleaning component further includes an adjusting component, the adjusting component including an arc-shaped plate located inside the pulley, a guide shaft fixed on one side of the arc-shaped plate, a through groove on the pulley, and the guide shaft sliding in the through groove.

[0015] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, a turntable is rotatably connected to the outside of the rotating column, a guide groove is provided on the turntable, the guide groove is arc-shaped, and the guide shaft slides in the guide groove.

[0016] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, a fixed frame is fixed on one side of the turntable, a locking block is provided in the fixed frame, a locking groove is provided on the rotating column, and the locking block engages with the locking groove.

[0017] In a preferred embodiment of the soil heavy metal magnetic separation and recovery device of the present invention, a second spring and a pull rod are fixed on one side of the card block, and one end of the pull rod extends through to the outside of the fixed frame and is movably connected to the fixed frame.

[0018] The beneficial effects of this invention are as follows: by intermittently cleaning the surface of the magnetic roller by the cleaning component, the continuous friction and wear of the magnetic roller working surface by the continuous scraper can be effectively avoided, the disturbance of the light and fine magnetic heavy metal particles adsorbed on the roller surface can be reduced, and the particle loss rate can be reduced.

[0019] Furthermore, the cleaning interval can be adjusted to adapt to dynamic changes in soil viscosity, moisture content, and treatment capacity. When the viscosity is high, the interval can be shortened, and when the viscosity is low, the interval can be lengthened, balancing the cleaning effect and magnetic separation efficiency. It can also be adjusted according to the size of magnetic particles to avoid over-cleaning or untimely cleaning, improving equipment adaptability, reducing maintenance costs, and ensuring stable and efficient operation of the equipment under different working conditions, thus guaranteeing the soil remediation effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of a soil heavy metal magnetic separation and recovery unit.

[0022] Figure 2 This is a structural diagram of the cleaning component of a soil heavy metal magnetic separation and recovery device.

[0023] Figure 3 This is a structural diagram of the moving parts of a soil heavy metal magnetic separation and recovery device.

[0024] Figure 4 This is a structural diagram of the transmission components of a soil heavy metal magnetic separation and recovery device.

[0025] Figure 5 This is a cross-sectional view of the pulley structure of a magnetic separation and recovery device for heavy metals in soil.

[0026] Figure 6 This is a cross-sectional view of the rotating column structure of a magnetic separation and recovery device for heavy metals in soil.

[0027] Figure 7 This is a cross-sectional view of the fixed sleeve of a magnetic separation and recovery device for heavy metals in soil. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, referring to Figures 1-3This is the first embodiment of the present invention, which provides a soil heavy metal magnetic separation and recovery device. The soil heavy metal magnetic separation and recovery device includes a main component 1, including a water storage tank 11. A magnetic roller 12 is installed inside the water storage tank 11. The magnetic roller 12 can generate a magnetic field and adsorb heavy metals in the soil. A rotating column 13 is fixed to one side of the magnetic roller 12. A support base is fixed on the water storage tank 11. The rotating column 13 is rotatably connected to the support base through a bearing. A motor 14 is installed at the end of the rotating column 13. The output shaft of the motor 14 is fixed to the rotating column 13. A drainage trough 15 and a collection trough 16 are respectively provided on both sides of the water storage tank 11. 5 is used to discharge the treated soil slurry, and the collection tank 16 is used to collect the separated heavy metal particles. A feed trough is connected to one side of the water storage tank 11 through a pipe. The slurry is fed into the water storage tank 11 through the feed trough. Then, the motor 14 is started to drive the magnetic roller 12 to rotate. During the rotation, the magnetic roller 12 adsorbs the heavy metals in the soil under the action of magnetic force. When the heavy metal particles rotate to the position of the collection tank 16, the magnetic force of that part of the magnetic roller 12 will disappear, and the heavy metal particles will fall into the collection tank 16. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0032] The cleaning component 2, located on one side of the magnetic roller 12, includes a cleaning element 21. The cleaning element 21 includes a scraper 211 located on one side of the magnetic roller 12. A support column 212 is fixed inside the scraper 211. A support plate 213 is fixed on the top of the water tank 11. There are two support plates 213, which are fixed on the top two sides of the water tank 11 respectively, for supporting and positioning the scraper 211. The end of the scraper 211 is inclined and intermittently contacts the magnetic roller 12. When the scraper 211 contacts the magnetic roller 12, it can clean the dirt attached to the surface of the magnetic roller 12. After cleaning, the scraper 211 will separate from the magnetic roller 12, thereby avoiding the wear of the working surface of the magnetic roller 12 by the continuous friction of the scraper 211. This can reduce the disturbance of the light and fine magnetic heavy metal particles adsorbed on the roller surface and reduce the particle loss rate.

[0033] The cleaning component 2 also includes a movable component 22 and a transmission component 23, which are located on the outside of the support column 212 and are used to drive the support column 212 and the scraper 211 to rotate. The transmission component 23 is located on one side of the movable component 22 and is used to drive the movable component 22 to rotate and move.

[0034] Example 2, refer to Figures 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the movable component 22 includes a movable sleeve 221 sleeved on the outside of the support column 212. A first fixed shaft 222 is fixed inside the movable sleeve 221. A first spiral groove 212-1 and a sliding groove 212-2 are provided on the support column 212. The first spiral groove 212-1 communicates with the sliding groove 212-2. The sliding groove 212-2 is straight. The first fixed shaft 222 slides in the first spiral groove 212-1.

[0036] When the movable sleeve 221 moves toward the support plate 213, it will drive the first fixed shaft 222 to rotate in the first spiral groove 212-1. The cooperation between the two will cause the support column 212 and the scraper 211 to rotate, and the end of the scraper 211 to contact the magnetic roller 12, thereby cleaning the dirt attached to the magnetic surface of the magnetic roller 12.

[0037] At this time, the first fixed shaft 222 will enter the interior of the slide groove 212-2 and move along the slide groove 212-2. The angle of the scraper 211 can be locked by the cooperation of the two, so that when the scraper 211 contacts the magnetic roller 12, it can maintain the cleaning intensity of the magnetic roller 12.

[0038] A positioning plate 223 is fixed to the bottom of the movable sleeve 221, and a positioning post 224 is fixed to one side of the support plate 213. The positioning post 224 passes through the positioning plate 223 and is movably connected to the positioning plate 223. The two work together to guide and position the movable sleeve 221. A first spring 225 is fixed to one side of the positioning plate 223, and the other end of the first spring 225 is fixed to the support plate 213. The first spring 225 is used to apply a pushing force to the positioning plate 223 and cause the positioning plate 223 to drive the movable sleeve 221 to move in the opposite direction. When the movable sleeve 221 moves to the initial position, the scraper 211 can be reset and separated from the magnetic roller 12, thereby avoiding wear on the magnetic surface of the magnetic roller 12 due to prolonged contact.

[0039] The transmission component 23 includes a first gear 231 sleeved on the outside of the movable sleeve 221. A second fixed shaft 232 is fixed inside the first gear 231. The movable sleeve 221 has a second spiral groove 221-1 and a reset groove 221-2. The second spiral groove 221-1 has a large pitch and a small angle. The reset groove 221-2 is straight. The two ends of the second spiral groove 221-1 are respectively connected to the two ends of the reset groove 221-2. There are multiple of both, which are evenly distributed in a ring on the outside of the movable sleeve 221. The second fixed shaft 232 slides in the second spiral groove 221-1. A support frame 231-1 is fixed on the top of the support plate 213. The support frame 231-1 is L-shaped. The first gear 231 is rotatably connected to the support frame 231-1 through a bearing.

[0040] When the first gear 231 rotates, it will drive the second fixed shaft 232 to slide in the second spiral groove 221-1. Through the cooperation of the two, the moving sleeve 221 will move. When the moving sleeve 221 stops moving, the second fixed shaft 232 will enter the reset groove 221-2. At this time, the moving sleeve 221 can move in the opposite direction and reset under the thrust of the first spring 225.

[0041] A second gear 233 is provided on one side of the first gear 231. The second gear 233 has fewer teeth. When it meshes with the first gear 231, it will only drive the first gear 231 to rotate at the same angle as the second spiral groove 221-1. A third gear 234 is fixed on one side of the second gear 233. Both the second gear 233 and the third gear 234 are mounted on the top of the water tank 11 via a rotating support frame. A fixed rod 235 is fixed on the top of the water tank 11. A rotating column 236 is rotatably connected inside the fixed rod 235. A fourth gear 237 and a pulley 238 are fixed on the outside of the rotating column 236. The fourth gear 237 is the same as the second gear 233. The pulley 238 is connected to the rotating column 13 via a belt. An annular groove is provided on the rotating column 13. The belt is sleeved on the outside of the annular groove. The diameter of the annular groove is the same as that of the pulley 238.

[0042] When the rotating column 13 rotates, it drives the pulley 238 and the fourth gear 237 to rotate via the belt. After the fourth gear 237 rotates once, it drives the second gear 233 and the third gear 234 to rotate. After the second gear 233 rotates once, it will mesh with the first gear 231 and drive the first gear 231 to rotate. Therefore, after the magnetic roller 12 rotates multiple times, the scraper 211 will contact the magnetic roller 12 and clean the magnetic surface of the magnetic roller 12.

[0043] The cleaning component 2 also includes a delaying element 24, which includes a piston 241 fixed to the end of the positioning post 224. A fixing sleeve 242 is fixed to one side of the positioning plate 223. The piston 241 is movably connected to the fixing sleeve 242. A venting groove 242-1 is opened on one side of the fixing sleeve 242. A stop block 243 is hinged to one side of the fixing sleeve 242. The stop block 243 is used to block the venting groove 242-1. A venting hole 243-1 is opened on the stop block 243. The venting groove 242-1 has a large diameter and the venting hole 243-1 has a small diameter.

[0044] When the movable sleeve 221 and the positioning plate 223 move toward the support plate 213, the piston 241 will move inside the fixed sleeve 242. The airflow generated when the piston 241 moves will push the stop block 243 to open and allow the airflow to be discharged outward through the vent groove 242-1. Therefore, it will not hinder the movement of the positioning plate 223. When the movable sleeve 221 moves in the opposite direction, the stop block 243 will block the vent groove 242-1. At this time, air will only enter the movable sleeve 221 through the vent hole 243-1. When the piston 241 moves, it will generate negative pressure inside the movable sleeve 221 and slow down the movement speed of the piston 241. This will slow down the movement speed of the movable sleeve 221, allowing the first fixed shaft 222 to move in the slide groove 212-2 for a longer time. This will allow the scraper 211 to clean the magnetic roller 12 thoroughly.

[0045] Example 3, referring to Figures 4-7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, the cleaning component 2 also includes an adjusting component 25, which includes an arc-shaped plate 251 located inside the pulley 238. There are four arc-shaped plates 251, which are evenly distributed in a ring inside the pulley 238. The belt is sleeved on the outside of the four arc-shaped plates 251. A guide shaft 252 is fixed on one side of the arc-shaped plate 251. A through groove 238-1 is opened on the pulley 238, and the guide shaft 252 slides in the through groove 238-1.

[0047] A turntable 253 is rotatably connected to the outside of the rotating column 236. A guide groove 253-1 is provided on the turntable 253. The guide groove 253-1 is arc-shaped, and the guide shaft 252 slides in the guide groove 253-1.

[0048] Rotating the turntable 253 causes the guide shaft 252 to slide within the guide groove 253-1. This, in turn, moves the arc-shaped plate 251, causing it to expand outwards or contract inwards. This allows for adjustment of the diameter of the pulley 238. When the diameter of the pulley 238 increases, its circumference also increases. Therefore, when the rotating column 13 rotates one revolution, the pulley 238 will not complete one revolution. Consequently, at the same rotational speed of the rotating column 13, the first gear 231 will be driven to rotate later, thus extending the cleaning interval between the scraper 211 and the magnetic roller 12. Conversely, when the arc-shaped plate 251 contracts inwards, causing the pulley 238 to... When the diameter decreases, the circumference of the pulley 238 decreases. When the rotating column 13 rotates once, the pulley 238 will rotate more than once, and the first gear 231 will be driven to rotate earlier. This shortens the interval between the scraper 211 and the magnetic roller 12, thus adapting to the dynamic changes in soil viscosity, moisture content, and treatment capacity. When the viscosity is high, the interval is shortened; when the viscosity is low, the interval is lengthened, balancing the cleaning effect and magnetic separation efficiency. It can also be adjusted according to the size of the magnetic particles to avoid over-cleaning or untimely cleaning, improving equipment adaptability, reducing maintenance costs, ensuring stable and efficient operation of the equipment under different working conditions, and guaranteeing the soil remediation effect.

[0049] A fixed frame 254 is fixed on one side of the turntable 253. A locking block 255 is provided inside the fixed frame 254. A slot 236-1 is provided on the rotating column 236. The locking block 255 engages with the slot 236-1. The two work together to lock the turntable 253 and the rotating column 236, preventing the turntable 253 from rotating randomly. There are multiple slots 236-1, which are evenly distributed in an arc on the rotating column 236.

[0050] A second spring 256 and a pull rod 257 are fixed on one side of the locking block 255. One end of the pull rod 257 extends through to the outside of the fixed frame 254 and is movably connected to the fixed frame 254. The second spring 256 is used to apply a pushing force to the locking block 255, so that the locking block 255 and the locking groove 236-1 are engaged more securely. The locking block 255 can be pulled apart from the locking groove 236-1 by the pull rod 257, so that the turntable 253 can be rotated and adjusted.

[0051] During use, when the magnetic roller 12 magnetically attracts heavy metals in the soil during rotation, the rotating column 13 drives the pulley 238 and the fourth gear 237 to rotate via a belt. After the fourth gear 237 rotates once, it drives the second gear 233 and the third gear 234 to rotate. After the second gear 233 rotates once, it meshes with the first gear 231 and drives the first gear 231 to rotate. When the first gear 231 rotates, it drives the second fixed shaft 232 to slide in the second spiral groove 221-1. Through the cooperation of the two, the moving sleeve 221 moves. When the moving sleeve 221 moves towards the support plate 213, it drives the first fixed shaft 222 to rotate in the first spiral groove 212-1. Through the cooperation of the two, the support column 212 and the scraper 211 rotate, and the end of the scraper 211 contacts the magnetic roller 12, thereby cleaning the dirt attached to the magnetic surface of the magnetic roller 12.

[0052] Meanwhile, the first spring 225 applies a pushing force to the positioning plate 223, causing the positioning plate 223 to drive the moving sleeve 221 to move in the opposite direction. When the moving sleeve 221 moves in the opposite direction, the stop block 243 blocks the vent groove 242-1. At this time, air only enters the moving sleeve 221 through the vent hole 243-1. When the piston 241 moves, it will generate negative pressure in the moving sleeve 221 and slow down the movement speed of the piston 241, thereby slowing down the movement speed of the moving sleeve 221. This allows the first fixed shaft 222 to move in the slide groove 212-2 for a longer time, so that the scraper 211 can fully clean the magnetic roller 12. After cleaning, the scraper 211 will separate from the magnetic roller 12, thereby avoiding the continuous friction of the scraper 211 from wearing down the working surface of the magnetic roller 12. This reduces the disturbance to the light and fine magnetic heavy metal particles adsorbed on the roller surface and reduces the particle loss rate.

[0053] When the cleaning interval of the scraper 211 needs to be adjusted, the turntable 253 is rotated to make the guide shaft 252 slide in the guide groove 253-1. Through the cooperation of the two, the arc plate 251 is moved, causing the arc plate 251 to expand outward or contract inward. This allows for adjustment of the diameter of the pulley 238. When the diameter of the pulley 238 increases, the circumference of the pulley 238 increases. Therefore, when the rotating column 13 rotates one revolution, the pulley 238 will not rotate a full revolution. Thus, at the same rotation speed of the rotating column 13, the first gear 231 will be driven to rotate later, thereby extending the cleaning interval of the scraper 211 on the magnetic roller 12. When the arc plate 251 contracts inward... This reduces the diameter of the pulley 238, thus decreasing its circumference. For every rotation of the rotating column 13, the pulley 238 rotates more than one rotation, causing the first gear 231 to rotate earlier. This shortens the interval between the scraper 211 and the magnetic roller 12, allowing the system to adapt to dynamic changes in soil viscosity, moisture content, and treatment capacity. The interval is shortened when the viscosity is high and lengthened when it is low, balancing cleaning effectiveness and magnetic separation efficiency. Furthermore, the system can be adjusted according to the size of the magnetic particles to avoid over-cleaning or untimely cleaning, improving equipment adaptability, reducing maintenance costs, and ensuring stable and efficient operation under different working conditions, thereby guaranteeing soil remediation results.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A soil heavy metal magnetic separation and recovery device, characterized in that: include, The main component (1) includes a water storage tank (11), a magnetic roller (12) is provided inside the water storage tank (11), a rotating column (13) is fixed on one side of the magnetic roller (12), a motor (14) is provided at the end of the rotating column (13), and a drainage trough (15) and a collection trough (16) are respectively provided on both sides of the water storage tank (11). The cleaning component (2) is disposed on one side of the magnetic roller (12) and includes a cleaning element (21). The cleaning element (21) includes a scraper (211) located on one side of the magnetic roller (12). A support column (212) is fixed inside the scraper (211). A support plate (213) is fixed on the top of the water tank (11). The end of the scraper (211) is inclined and intermittently contacts the magnetic roller (12). The cleaning component (2) further includes a movable component (22) and a transmission component (23). The movable component (22) is located on the outside of the support column (212) and is used to drive the support column (212) and the scraper (211) to rotate. The transmission component (23) is located on one side of the movable component (22) and is used to drive the movable component (22) to rotate and move.

2. The soil heavy metal magnetic separation and recovery device as described in claim 1, characterized in that: The movable component (22) includes a movable sleeve (221) sleeved on the outside of the support column (212), a first fixed shaft (222) is fixed inside the movable sleeve (221), a first spiral groove (212-1) and a sliding groove (212-2) are provided on the support column (212), and the first fixed shaft (222) slides in the first spiral groove (212-1).

3. The soil heavy metal magnetic separation and recovery device as described in claim 2, characterized in that: The bottom of the movable sleeve (221) is fixed with a positioning plate (223), and a positioning post (224) is fixed on one side of the support plate (213). The positioning post (224) passes through the positioning plate (223) and is movably connected to the positioning plate (223). A first spring (225) is fixed on one side of the positioning plate (223), and the other end of the first spring (225) is fixed to the support plate (213).

4. The soil heavy metal magnetic separation and recovery device as described in claim 3, characterized in that: The transmission component (23) includes a first gear (231) sleeved on the outside of the movable sleeve (221), a second fixed shaft (232) fixed inside the first gear (231), a second spiral groove (221-1) and a reset groove (221-2) opened on the movable sleeve (221), the second fixed shaft (232) slides in the second spiral groove (221-1), a support frame (231-1) is fixed on the top of the support plate (213), and the first gear (231) is rotatably connected to the support frame (231-1) through a bearing.

5. The soil heavy metal magnetic separation and recovery device as described in claim 4, characterized in that: A second gear (233) is provided on one side of the first gear (231), and a third gear (234) is fixed on one side of the second gear (233). The second gear (233) and the third gear (234) are both set on the top of the water tank (11) through a rotating support frame. A fixed rod (235) is fixed on the top of the water tank (11). A rotating column (236) is rotatably connected inside the fixed rod (235). A fourth gear (237) and a pulley (238) are fixed on the outside of the rotating column (236). The pulley (238) is connected to the rotating column (13) through a belt.

6. The soil heavy metal magnetic separation and recovery device as described in claim 5, characterized in that: The cleaning component (2) further includes a delaying component (24), which includes a piston (241) fixed to the end of the positioning post (224). A fixing sleeve (242) is fixed on one side of the positioning plate (223). The piston (241) is movably connected to the fixing sleeve (242). A venting groove (242-1) is provided on one side of the fixing sleeve (242). A stop block (243) is hinged on one side of the fixing sleeve (242). A venting hole (243-1) is provided on the stop block (243).

7. The soil heavy metal magnetic separation and recovery device as described in claim 5 or 6, characterized in that: The cleaning component (2) also includes an adjusting component (25), which includes an arc-shaped plate (251) located inside the pulley (238). A guide shaft (252) is fixed on one side of the arc-shaped plate (251). A through groove (238-1) is provided on the pulley (238), and the guide shaft (252) slides in the through groove (238-1).

8. The soil heavy metal magnetic separation and recovery device as described in claim 7, characterized in that: The rotating column (236) is rotatably connected to a turntable (253), and a guide groove (253-1) is provided on the turntable (253). The guide groove (253-1) is arc-shaped, and the guide shaft (252) slides in the guide groove (253-1).

9. The soil heavy metal magnetic separation and recovery device as described in claim 8, characterized in that: A fixed frame (254) is fixed on one side of the turntable (253), and a locking block (255) is provided inside the fixed frame (254). A slot (236-1) is provided on the rotating column (236), and the locking block (255) engages with the slot (236-1).

10. The soil heavy metal magnetic separation and recovery device as described in claim 9, characterized in that: A second spring (256) and a pull rod (257) are fixed on one side of the card block (255). One end of the pull rod (257) extends through to the outside of the fixed frame (254) and is movably connected to the fixed frame (254).

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