Heavy metal contaminated soil remediation device

Abstract

The utility model relates to the technical field of environmental engineering, and discloses a heavy metal contaminated soil remediation device which comprises a barrel, a discharging pipe is fixedly connected to the middle of the lower surface of the barrel, a control valve is arranged in the middle of the right side of the discharging pipe, a pretreatment mechanism is arranged in the barrel, and a screening mechanism is arranged below the discharging pipe. A cleaning mechanism is arranged below the screening mechanism, and a recycling mechanism is arranged on the back face of the cleaning mechanism. Through the screening box connected with the bottom of the supporting rod, the vibration motor drives the screening box to conduct vibration treatment, materials obtained after vibration screening fall into the cleaning box below, the first water suction pump sucks water to the inner face of the first water outlet pipe through the water suction pipe, the water is sprayed into the cleaning box through the spray head on one side of the fixing pipe, and spraying cleaning is conducted on soil; and the cleaned soil is guided into the storage box, and the cleaning box can move through wheels at the bottom of the bottom plate, so that the effects that the cleaning box can be used at any time, and the remediation treatment difficulty of the polluted soil is reduced can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental engineering, in particular to a soil repair device polluted by heavy metals. Background Art

[0002] With the rapid development of industrialization and urbanization, a large amount of industrial waste, domestic sewage and the use of agricultural fertilizers have led to soil contamination by heavy metals. Heavy metals such as lead, cadmium and mercury not only have an inhibitory effect on plant growth, but also pose a threat to human health through accumulation in the food chain.

[0003] Conventional soil heavy metal pollution control work has a large interface, a large impact on the surrounding environment, uncontrollable secondary pollution, and high operating costs, which leads to low efficiency and secondary pollution. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a heavy metal contaminated soil remediation device, which has the advantages of being available for use as needed and reducing the difficulty of remediation and treatment of contaminated soil, thereby solving the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy metal contaminated soil remediation device, comprising a cylinder, a feed pipe is fixedly connected to the middle part of the lower surface of the cylinder, a control valve is arranged in the middle part of the right side of the feed pipe, a pretreatment mechanism is arranged inside the cylinder, a screening mechanism is arranged below the feed pipe, a cleaning mechanism is arranged below the screening mechanism, a recovery mechanism is arranged on the back of the cleaning mechanism, a purification mechanism is arranged on the upper right side of the cylinder, the screening mechanism comprises a support rod, the number of the support rods is two, the tops of the two support rods are respectively fixedly connected to the middle parts of the left and right sides of the lower surface of the feed pipe, the bottom of the support rod is fixedly connected to a screening box, the middle part of the inner wall of the screening box is fixedly connected to a sieve plate, the middle parts of the left and right sides of the screening box are fixedly installed with a vibration motor, the lower surface of the vibration motor is fixedly connected to a placement plate, the cleaning mechanism comprises a support block, the number of the support blocks is four, the tops of the four support blocks are respectively The filter element is fixedly connected to the bottom of the support block, a cleaning box is fixedly connected to the bottom of the support block, a filter plate is fixedly connected to the upper inner wall of the cleaning box, water tanks are fixedly installed below the left and right sides of the cleaning box, a first water pump is fixedly installed in the middle of the upper surface of the water tank, a water suction pipe is fixedly connected to the middle of the back of the first water pump, a first water outlet pipe is fixedly connected to the middle of the upper surface of the first water pump, a fixed pipe is fixedly connected to the other end of the first water outlet pipe, a number of nozzles are fixedly connected to one side of the fixed pipe, a discharge port is opened above the front of the cleaning box, a storage box is fixedly installed below the front of the discharge port, card slots are opened in the middle of the left and right sides of the front of the discharge port, a sealing plate is arranged on the outside of the front of the discharge port, blocks are fixedly connected to the middle of the left and right sides of the sealing plate, a second handle is fixedly connected to the middle of the front of the sealing plate, a bottom plate is fixedly connected to the bottom of the cleaning box, and wheels are arranged at the four corners of the lower surface of the bottom plate.

[0006] Preferably, a feed pipe is fixedly connected to the middle left portion of the upper surface of the cylinder, a sealing block is provided above the feed pipe, a cover plate is fixedly connected to the upper surface of the sealing block, and a first handle is fixedly connected to the middle portion of the upper surface of the cover plate.

[0007] The soil enters the interior of the cylinder through the feed pipe, and the sealing block can be stuck in the upper interior of the feed pipe to block the upper part, thereby ensuring the sealing of the interior of the cylinder when not in use. The cover plate covers the upper surface of the feed pipe, and the first handle makes it convenient for the operator to take the cover plate.

[0008] Preferably, the pretreatment mechanism includes a driving motor, the bottom of the driving motor is provided with the middle part of the upper surface of the cylinder, one end of the driving motor is fixedly connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to a number of crushing knives, and a stirring frame is fixedly connected below the outer surface of the rotating rod.

[0009] The driving motor drives the crushing knife and the stirring frame on the outer surface to rotate inside the cylinder through the rotating rod at the bottom. While crushing the soil, it can also mix it evenly with the repair agent and chemical agents, which can avoid blockage of the discharge pipe.

[0010] Preferably, the recovery mechanism includes a connecting pipe, one end of which is fixedly connected to the lower middle part of the back side of the cleaning box, a second water pump is fixedly connected to the back side of the connecting pipe, a second water outlet pipe is fixedly connected to the middle part of the upper surface of the second water pump, and the other end of the second water outlet pipe is fixedly connected to the recovery box.

[0011] The connecting pipe is connected between the cleaning tank and the second water pump. The second water pump pumps the waste water inside the cleaning tank to the second outlet pipe through the connecting pipe, and the second outlet pipe guides the waste water to the inside of the recovery tank. Sedimentation and filtration are performed inside the recovery tank to ensure that the waste water is properly treated and meets the discharge standards.

[0012] Preferably, the purification mechanism comprises a threaded tube, the bottom of which is fixedly connected to the middle right portion of the upper surface of the cylinder, a threaded head is provided above the threaded tube, and an air outlet pipe is fixedly connected to the upper surface of the threaded head.

[0013] Preferably, a sealing valve is provided in the middle portion of the right side of the air outlet pipe, and a purification cartridge is fixedly connected to the top of the air outlet pipe.

[0014] The threaded head can be screwed into the threaded pipe, and the outlet pipe can be threadedly connected to the cylinder through the threaded head at the bottom. The sealing valve is used to control the circulation of the outlet pipe. The exhaust gas generated inside the cylinder enters the purification cylinder through the outlet pipe, and is discharged to the outside after purification and filtration in the purification cylinder, preventing harmful gases from being discharged into the atmosphere.

[0015] Compared with the prior art, the utility model provides a heavy metal contaminated soil remediation device, which has the following beneficial effects:

[0016] 1. The utility model uses a screening box connected to the bottom of the support rod, and a vibration motor drives the screening box to vibrate. The material after vibration screening falls into the cleaning box below. The first water pump draws water to the inner surface of the first water outlet pipe through the water pumping pipe, and the water is sprayed into the cleaning box by the nozzle on one side of the fixed pipe to spray and clean the soil. The cleaned soil is introduced into the interior of the storage box. The cleaning box can be moved by the wheels at the bottom of the bottom plate, so that it can be used whenever it is needed, reducing the difficulty of remediation and treatment of contaminated soil.

[0017] 2. The utility model uses a motor installed in the middle of the upper surface of the cylinder. The motor drives the crushing knife and the stirring frame on the outer surface to rotate through the rotating rod at the bottom. The crushing knife crushes the soil, and the stirring frame can evenly and gently stir the soil with the repair agent and the medicine, thereby achieving the effect of improving the soil repair efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional view of the cylinder body of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the cleaning box of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the front cross-sectional view of the cleaning box of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the recycling mechanism of the utility model.

[0023] Among them: 1. Cylinder; 101. Feed pipe; 102. Sealing block; 103. Cover plate; 104. First handle; 105. Feed pipe; 106. Control valve; 2. Pretreatment mechanism; 201. Drive motor; 202. Rotating rod; 203. Crushing knife; 204. Stirring frame; 3. Screening mechanism; 301. Support rod; 302. Screening box; 303. Screen plate; 304. Vibrating motor; 305. Placement plate; 4. Cleaning mechanism; 401. Support block; 402. Cleaning box; 403. Filter plate; 404. Water tank; 405. First Water pump; 406, water pipe; 407, first water outlet pipe; 408, fixed pipe; 409, nozzle; 410, discharge port; 411, storage box; 412, slot; 413, sealing plate; 414, block; 415, second handle; 416, bottom plate; 417, wheel; 5, recovery mechanism; 501, connecting pipe; 502, second water pump; 503, second water outlet pipe; 504, recovery box; 6, purification mechanism; 601, threaded pipe; 602, threaded head; 603, air outlet pipe; 604, sealing valve; 605, purification cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1-5 A heavy metal contaminated soil remediation device comprises a cylinder 1, a feed pipe 105 is fixedly connected to the middle of the lower surface of the cylinder 1, a control valve 106 is arranged in the middle of the right side of the feed pipe 105, a pretreatment mechanism 2 is arranged inside the cylinder 1, a screening mechanism 3 is arranged below the feed pipe 105, a cleaning mechanism 4 is arranged below the screening mechanism 3, a recovery mechanism 5 is arranged on the back of the cleaning mechanism 4, a purification mechanism 6 is arranged on the upper right side of the cylinder 1, the screening mechanism 3 comprises a support rod 301, the number of the support rods 301 is two, the tops of the two support rods 301 are respectively fixedly connected to the middle of the left and right sides of the lower surface of the feed pipe 105, and the bottom of the support rod 301 is fixedly connected to the screening mechanism 3. The screening box 302 is fixedly connected with a sieve plate 303 in the middle of the inner wall of the screening box 302. The middle of the left and right sides of the screening box 302 are fixedly installed with a vibration motor 304. The lower surface of the vibration motor 304 is fixedly connected with a placement plate 305. The soil inside the cylinder 1 falls into the screening box 302 below through the discharge pipe 105. The control valve 106 is used to control the circulation of the discharge pipe 105. The tops of the two support rods 301 are respectively vertically connected to the middle of the left and right sides of the lower surface of the cylinder 1, and the bottoms are respectively vertically connected to the middle of the left and right sides of the upper surface of the screening box 302. The vibration motor 304 drives the screening box 302 to vibrate, and the soil on the upper surface of the sieve plate 303 inside it is filtered.

[0026] The cleaning mechanism 4 includes a support block 401, the number of the support blocks 401 is four, the tops of the four support blocks 401 are respectively fixedly connected to the four corners of the lower surface of the screening box 302, the bottom of the support block 401 is fixedly connected to the cleaning box 402, the upper inner wall of the cleaning box 402 is fixedly connected to a filter plate 403, the lower left and right sides of the cleaning box 402 are fixedly installed with a water tank 404, the middle of the upper surface of the water tank 404 is fixedly installed with a first water pump 405, the middle of the back of the first water pump 405 is fixedly connected to a water pump 406, and the middle of the upper surface of the first water pump 405 is fixedly connected to the filter plate 403. A first water outlet pipe 407 is fixedly connected, and the other end of the first water outlet pipe 407 is fixedly connected to a fixed pipe 408, and one side of the fixed pipe 408 is fixedly connected to a number of nozzles 409, a discharge port 410 is opened on the upper front of the cleaning box 402, and a storage box 411 is fixedly installed below the front of the discharge port 410, and a card slot 412 is opened in the middle of the left and right sides of the front of the discharge port 410, and a sealing plate 413 is arranged on the outside of the front of the discharge port 410, and a card block 414 is fixedly connected to the middle of the left and right sides of the sealing plate 413, and a card block 414 is fixedly connected to the middle of the front of the sealing plate 413. The second handle 415, the bottom of the cleaning box 402 is fixedly connected to a bottom plate 416, and wheels 417 are arranged at the four corners of the lower surface of the bottom plate 416. The bottoms of the four support blocks 401 are respectively vertically connected to the four corners of the upper surface of the cleaning box 402. The soil after vibration screening above falls on the upper surface of the filter plate 403 inside the cleaning box 402. The first pumping pump 405 pumps the water inside the water tank 404 into the first outlet pipe 407 through the pumping pipe 406, and the nozzle 409 on the side of the fixed pipe 408 sprays the inside of the cleaning box 402 to spray and clean the soil, thereby doping it. The heavy metal pollutants are treated, the discharge port 410 passes through the upper front of the cleaning box 402, and the soil inside the cleaning box 402 is introduced into the interior of the storage box 411 through the discharge port 410. The two card slots 412 are respectively embedded in the middle of the left and right sides of the front of the discharge port 410. The sealing plate 413 can be stuck in the inside of the discharge port 410 to block it. The card block 414 can be stuck in the inside of the card slot 412 to improve the sealing performance of the sealing plate 413. The second handle 415 is convenient for the operator to take the sealing plate 413, and the device can be moved through the wheels 417 under the bottom plate 416.

[0027] Specifically, Figure 2 As shown, a feed pipe 101 is fixedly connected to the middle left portion of the upper surface of the cylinder 1, a sealing block 102 is provided above the feed pipe 101, a cover plate 103 is fixedly connected to the upper surface of the sealing block 102, and a first handle 104 is fixedly connected to the middle portion of the upper surface of the cover plate 103.

[0028] Through the above technical solution, soil enters the interior of the cylinder 1 through the feed pipe 101, and the sealing block 102 can be stuck in the upper interior of the feed pipe 101 to block the top, thereby ensuring the sealing of the interior of the cylinder 1 when not in use. The cover plate 103 covers the upper surface of the feed pipe 101, and the first handle 104 facilitates the operator to take the cover plate 103.

[0029] Specifically, Figure 2 As shown, the pretreatment mechanism 2 includes a driving motor 201, the bottom of the driving motor 201 is provided with the middle part of the upper surface of the cylinder 1, one end of the driving motor 201 is fixedly connected to a rotating rod 202, the outer surface of the rotating rod 202 is fixedly connected to a number of crushing knives 203, and a stirring frame 204 is fixedly connected below the outer surface of the rotating rod 202.

[0030] Through the above technical solution, the driving motor 201 drives the crushing knife 203 and the stirring frame 204 on the outer surface to rotate inside the cylinder 1 through the rotating rod 202 at the bottom. While crushing the soil, it can also be evenly mixed with the repair agent and chemical agents, which can avoid blockage of the discharge pipe 105.

[0031] Specifically, Figure 5 As shown, the recovery mechanism 5 includes a connecting pipe 501, one end of which is fixedly connected to the lower middle part of the back side of the cleaning box 402, a second water pump 502 is fixedly connected to the back side of the connecting pipe 501, a second water outlet pipe 503 is fixedly connected to the middle part of the upper surface of the second water pump 502, and the other end of the second water outlet pipe 503 is fixedly connected to the recovery box 504.

[0032] Through the above technical solution, the connecting pipe 501 is connected between the cleaning box 402 and the second water pump 502. The second water pump 502 pumps the waste water inside the cleaning box 402 to the second water outlet pipe 503 through the connecting pipe 501, and the waste water is guided by the second water outlet pipe 503 to the inside of the recovery box 504. Sedimentation and filtration are performed inside the recovery box 504 to ensure that the waste water is properly treated and meets the discharge standards.

[0033] Specifically, Figure 2 As shown, the purification mechanism 6 includes a threaded tube 601, the bottom of which is fixedly connected to the middle right side of the upper surface of the cylinder body 1, a threaded head 602 is provided above the threaded tube 601, an air outlet pipe 603 is fixedly connected to the upper surface of the threaded head 602, a sealing valve 604 is provided in the middle right side of the air outlet pipe 603, and a purification cylinder 605 is fixedly connected to the top of the air outlet pipe 603.

[0034] Through the above technical solution, the threaded head 602 can be screwed into the threaded tube 601, and the outlet pipe 603 can be threadedly connected to the cylinder body 1 through the threaded head 602 at the bottom. The sealing valve 604 is used to control the circulation of the outlet pipe 603. The exhaust gas generated inside the cylinder body 1 enters the purification cylinder 605 through the outlet pipe 603, and is discharged to the outside after purification and filtration in the purification cylinder 605, thereby preventing harmful gases from being discharged into the atmosphere.

[0035] When in use, the device is moved to a suitable position by the wheel 417, the soil is introduced into the interior of the cylinder 1 through the feed pipe 101, and the repair agent and chemical agent are put into the interior of the cylinder 1. After the introduction, the sealing block 102 is covered on the top of the feed pipe 101 to block it, and the driving motor 201 drives the crushing knife 203 and the stirring frame 204 to crush and stir the soil through the rotating rod 202 at the bottom. After the crushing reaction, the control valve 106 is opened, and the material falls into the screening box 302 below through the discharge pipe 105. The exhaust gas generated inside the cylinder 1 is discharged through the exhaust pipe 603. The soil enters the purification cylinder 605 and is discharged into the air after being purified. The vibration motor 304 vibrates and screens the soil. The screened soil falls into the cleaning box 402 below. The first water pump 405 pumps the water inside the water tank 404 to the nozzle 409 through the water pumping pipe 406 to spray and clean the soil inside the cleaning box 402. The second water pump 502 pumps the waste water inside the cleaning box 402 to the recovery box 504 through the connecting pipe 501 for sedimentation and filtration. The sealing plate 413 is opened to guide the cleaned soil in the cleaning box 402 into the storage box 411.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy metal contaminated soil remediation device, comprising a cylinder, characterized in that: A feeding pipe is fixedly connected to the middle part of the lower surface of the cylinder, a control valve is provided in the middle part of the right side of the feeding pipe, a pretreatment mechanism is provided inside the cylinder, a screening mechanism is provided below the feeding pipe, a cleaning mechanism is provided below the screening mechanism, a recovery mechanism is provided on the back of the cleaning mechanism, and a purification mechanism is provided on the upper right side of the cylinder, the screening mechanism comprises a support rod, the number of the support rods is two, the tops of the two support rods are respectively fixedly connected to the middle parts of the left and right sides of the lower surface of the feeding pipe, the bottom of the support rod is fixedly connected to a screening box, the middle part of the inner wall of the screening box is fixedly connected to a screening plate, the middle parts of the left and right sides of the screening box are fixedly installed with a vibration motor, the lower surface of the vibration motor is fixedly connected with a placing plate, the cleaning mechanism comprises a support block, the number of the support blocks is four, the tops of the four support blocks are respectively fixedly connected to the four corners of the lower surface of the screening box, the support block The bottom of the cleaning box is fixedly connected to the cleaning box, the filter plate is fixedly connected to the upper inner wall of the cleaning box, and water tanks are fixedly installed at the lower left and right sides of the cleaning box, a first water pump is fixedly installed in the middle of the upper surface of the water tank, a suction pipe is fixedly connected to the middle of the back of the first water pump, a first water outlet pipe is fixedly connected to the middle of the upper surface of the first water pump, the other end of the first water outlet pipe is fixedly connected to a fixed pipe, a number of nozzles are fixedly connected to one side of the fixed pipe, a discharge port is opened above the front of the cleaning box, a storage box is fixedly installed below the front of the discharge port, card slots are opened in the middle of the left and right sides of the front of the discharge port, a sealing plate is provided on the front outside of the discharge port, blocks are fixedly connected to the middle of the left and right sides of the sealing plate, a second handle is fixedly connected to the middle of the front of the sealing plate, a bottom plate is fixedly connected to the bottom of the cleaning box, and wheels are provided at the four corners of the lower surface of the bottom plate.

2. The heavy metal contaminated soil remediation device according to claim 1, characterized in that: A feed pipe is fixedly connected to the middle of the left side of the upper surface of the cylinder, a sealing block is arranged above the feed pipe, a cover plate is fixedly connected to the upper surface of the sealing block, and a first handle is fixedly connected to the middle of the upper surface of the cover plate.

3. The heavy metal contaminated soil remediation device according to claim 1, characterized in that: The pretreatment mechanism includes a driving motor, the bottom of the driving motor is provided with the middle part of the upper surface of the cylinder, one end of the driving motor is fixedly connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to a number of crushing knives, and a stirring frame is fixedly connected below the outer surface of the rotating rod.

4. The heavy metal contaminated soil remediation device according to claim 1, characterized in that: The recovery mechanism includes a connecting pipe, one end of which is fixedly connected to the lower middle part of the back side of the cleaning box, a second water pump is fixedly connected to the back side of the connecting pipe, a second water outlet pipe is fixedly connected to the middle part of the upper surface of the second water pump, and the other end of the second water outlet pipe is fixedly connected to the recovery box.

5. The heavy metal contaminated soil remediation device according to claim 1, characterized in that: The purification mechanism comprises a threaded tube, the bottom of which is fixedly connected to the middle right portion of the upper surface of the cylinder, a threaded head is arranged above the threaded tube, and an air outlet pipe is fixedly connected to the upper surface of the threaded head.

6. The heavy metal contaminated soil remediation device according to claim 5, characterized in that: A sealing valve is arranged in the middle of the right side of the air outlet pipe, and a purification cartridge is fixedly connected to the top of the air outlet pipe.

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