CN114682621A

CN114682621A - Soil remediation device and remediation method for heavy metal pollution

Info

Publication number: CN114682621A
Application number: CN202210278470.9A
Authority: CN
Inventors: 曹创斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-01

Abstract

The invention discloses a soil remediation device and a remediation method for heavy metal pollution, and particularly relates to the technical field of soil remediation. According to the invention, the second motor is started to rotate, the second motor drives the feeding pipes to rotate through the second chain wheel and the second chain, the two meshed second gears are arranged between the two feeding pipes, so that the two sieve barrels rotate in the box body simultaneously, metal substances in soil are attracted by the first magnets on the inner walls of the sieve barrels, fine soil leaks out of the sieve barrels, the sieving effect on heavy metals is improved, and meanwhile, the soil is secondarily sieved by the filter screen on the belt conveyor, so that the treatment effect on the heavy metals in the soil is further improved.

Description

Soil remediation device and remediation method for heavy metal pollution

Technical Field

The invention relates to the technical field of environment-friendly soil remediation, in particular to a soil remediation device and a remediation method for heavy metal pollution.

Background

With the progress of science and technology and the development of industry, more and more high-tech products are prepared, a large amount of heavy metal substances in the products are discharged into soil to cause heavy metal pollution of the soil, the heavy metal substances comprise heavy metal garbage and some heavy metal ions, the polluted soil is not beneficial to the development of the planting industry, the heavy metal in inorganic pollutants in the soil is more prominent, the heavy metal pollution in the soil has concealment, hysteresis and long-term property, the heavy metal enters plants through the root system action, the growth of the plants is inhibited, the human life health is indirectly threatened, meanwhile, the heavy metal pollutants can also migrate and be exposed in underground water and the atmosphere to destroy the ecological environment, the polluted soil can be re-developed and reused through a restoration treatment party, therefore, the existing soil restoration equipment is vigorously developed, at present, the soil restoration mainly utilizes physics, the plant is not only used for restoring the soil, and the soil is not easy to be polluted, Chemical and biological methods convert toxic and harmful pollutants into harmless substances, and play a role in repairing and treating.

Current heavy metal soil prosthetic devices generally can smash soil earlier when using, then uses screening equipment to sieve the soil after smashing, draws the heavy metal rubbish that mix with in the soil to can improve the mixed reaction effect between repair liquid and the soil, but the device uses the back for a long time, and the heavy metal rubbish that inside filtration got off can pile up in the device, reduces the flow velocity of soil, leads to work efficiency step-down.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a device and a method for remediating heavy metal contaminated soil, so as to solve the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the soil remediation device for heavy metal pollution comprises a box body, wherein one side of the top end of the box body is connected with a crushing assembly, the top end of an inner cavity of the box body is provided with two sieve barrels which are distributed front and back, a plurality of first magnets are embedded in the inner walls of the sieve barrels and can suck out heavy metals to treat the heavy metals in the soil first, one end of each sieve barrel is provided with a feed pipe in a penetrating manner, a driving assembly is arranged between the two feed pipes, two sides of the inner cavity of the sieve barrel are respectively provided with a ring plate and a sealing plate, the feed pipes penetrate through the ring plate and are communicated with the inside of the sieve barrels, the two feed pipes are respectively fixedly provided with an electromagnetic valve, the electromagnetic valves are used for conveniently controlling the circulation of the feed pipes, two reinforcing rods are fixedly arranged between the sealing plate and the ring plate, one side of the ring plate, which is close to the sealing plate, is connected with a rotating shaft through a bearing, the outer wall of the rotating shaft is fixedly provided with a baffle plate, and one side of the baffle, which is far away from the ring plate, is fixedly provided with a pull rod, conveniently pulling the ring plate and the baffle plate to drive heavy metal in the sieve barrel to flow into the collection box, arranging a belt conveyor below the sieve barrel, fixedly arranging support plates at two ends of the belt conveyor, embedding a filter screen on the conveyor belt of the belt conveyor, embedding a plurality of second magnets on the outer surface of the filter screen, absorbing residual heavy metal in soil by using the second magnets, improving the treatment effect on the heavy metal in the soil, arranging slide grooves on the inner wall surfaces at two sides of the inner cavity of the box body, arranging two support plates at the inner sides of the slide grooves and in sliding connection with the slide grooves, arranging through holes in the two support plates, arranging a plurality of tooth sockets at the top end and the bottom end of the inner wall of each through hole, arranging circular plates in the two through holes, fixedly arranging a plurality of teeth at the top ends of the circular plates, engaging the teeth with the plurality of tooth sockets at the top ends of the inner wall of the through holes, and arranging a rolling shaft between the two circular plates in a penetrating manner, the belt conveyor below is equipped with the waffle slab, the water cavity has been seted up to waffle slab inside, the fixed four aqua storage tubes that are equipped with in box inner chamber bottom, every aqua storage tube top and every opening inside wall of waffle slab all fix and are equipped with a plurality of shower nozzles, and every shower nozzle hydrojet department all fixes and is equipped with conical screen panel, the fixed infusion subassembly that is equipped with of box one end.

In a preferred embodiment, broken subassembly includes broken case, broken case is fixed in box one end, broken case top is run through and is equipped with the feeder hopper, the feeder hopper bottom is linked together with broken incasement portion, broken case one end is run through and is equipped with the connecting axle that distributes around two, and two connecting axle one end extend to broken incasement side and through bearing and broken incasement wall connection, connecting axle outside cover is equipped with the crushing roller, uses the crushing roller to smash soil earlier, is convenient for subsequent screening processing.

In a preferred embodiment, two connecting axle one ends are all fixed and are equipped with first gear, mesh between two first gears mutually, broken case one end is equipped with first motor, uses first motor as the power supply, and first motor power is strong, does not need manual operation, and it is better to use the processing effect, first motor is through first support and broken case outer end fixed connection, first motor output shaft one end and the first gear outer end fixed connection who is located broken case rear, and two inlet pipe one ends all run through broken case and are connected with broken case through the bearing, broken incasement side is equipped with two hob, and two hob one end are run through broken case and are extended to the broken case outside, and two hob other ends extend to the inlet pipe inboardly for carry the soil after smashing, avoid soil to block up in the inlet pipe.

In a preferred embodiment, be located between connecting axle and the hob in broken case the place ahead, be located all through the drive assembly linkage between connecting axle and the hob in broken case rear, drive assembly includes two first sprockets, and two first sprockets overlap respectively and establish in the connecting axle, the hob outside, connect through first chain between two first sprockets, utilize first chain and two first sprockets to be in the same place connecting axle and hob linkage, can reduce the use of first motor quantity.

In a preferred embodiment, be equipped with the guide plate between belt conveyor and the sieve bucket, the guide plate is fixed at the box inboard, makes soil flow to belt conveyor's center department, conveniently sieves, roller bearing one end runs through the box and extends to the box outside, the roller bearing other end passes through the bearing and is connected with the box inboard, fixedly between two backup pad bottoms be equipped with four long boards, four long board bottoms all contact with the grid plate top, and when a plurality of long boards followed the backup pad back-and-forth movement, can scrape the soil on the grid plate in the opening, avoid soil to pile up on the grid plate.

In a preferred embodiment, the fixed second motor that is equipped with of roller bearing one end, second motor bottom is through second support and box outside fixed connection, uses the second motor as the power supply, does not need manual operation, and work efficiency is high, drive assembly includes two second gears and two second sprockets, and two second gears overlap respectively and establish in two inlet pipe outsides, and mesh mutually between two second gears, and two second sprockets overlap respectively and establish in the roller bearing outside and be located the inlet pipe outside in box the place ahead, connect through the second chain between two second sprockets, do benefit to second sprocket and second chain and link roller bearing and inlet pipe together, use a second motor just can drive sieve bucket and plectane function, greatly reduced the use of motor quantity to the cost of device has been reduced.

In a preferred embodiment, infusion subassembly includes the liquid storage pot, the liquid storage pot is fixed in box one end, the fixed intercommunication of liquid storage pot front end has the water pump, the outlet pipe one end of water pump runs through box and grid plate and is linked together with the inside water cavity of grid plate, is linked together through the hose between four aqua storage pipes, is located the left aqua storage pipe top of box and is linked together through communicating pipe and the water cavity in the grid plate, uses the water pump to carry the restoration liquid in the liquid storage pot to the water cavity, again from shower nozzle blowout and soil intensive mixing, is convenient for handle the heavy metal ion in the soil, the box bottom mounting is equipped with screw conveyer, screw conveyer establishes in four aqua storage pipe belows, screw conveyer one end runs through the box and extends to the box inboard.

In a preferred embodiment, the diameter of the baffle is the same as that of the opening in the ring plate, one side of the sieve barrel, which is far away from the feeding pipe, is sleeved with a lantern ring through a bearing sleeve, the ring plate and the baffle are guided, one end of the box body, which is far away from the crushing box, is fixedly provided with a collecting box, the surfaces, which are close to the collecting box and the box body, are provided with a first discharge hole and two second discharge holes, the first discharge hole is arranged on the right side of the belt conveyor, the inner wall of the first discharge hole is fixedly provided with a scraper, heavy metals on the filter screen are scraped off by the scraper, so that the heavy metals can be conveniently collected, one end of the scraper is contacted with the outer surface of the filter screen, the two second discharge holes are respectively arranged on the right side of the two lantern rings, the two lantern rings respectively penetrate through the second discharge holes and are communicated with the inner cavity of the collecting box, the surface of the end, which is far away from the box body, is provided with an outlet, and a door plate is hinged in the outlet, the bottom ends of the collecting box and the crushing box are fixedly provided with two supporting legs, so that the stability of the crushing box and the collecting box in use is improved.

In a preferred embodiment, the front end of the box body is fixedly provided with a control panel, the control panel is connected with the water pump, the second motor, the first motor, the screw conveyor, the belt conveyor and the input end of the electromagnetic valve, the control panel is used for controlling the device, and the device is convenient for workers to control.

The invention also comprises a repairing method of the soil repairing device for heavy metal pollution, which comprises the following steps:

the method comprises the following steps: connecting a pipeline for conveying soil with a feed hopper, wherein the soil flows into a crushing box through the feed hopper, controlling a first motor to rotate by using a control panel, driving a first gear connected with the first motor to rotate, driving another first gear to rotate when the first gear rotates, so that two connecting shafts rotate simultaneously, driving the crushing rollers to rotate to crush the soil, crushing metal in the soil into fine particles, driving corresponding spiral rods to rotate by a first chain wheel and a first chain when each connecting shaft rotates, conveying the soil in the crushing box into feed pipes by the rotation of the two spiral rods, and then respectively flowing into two sieve barrels from the two feed pipes;

step two: the control panel is used for controlling a second motor to rotate, the second motor drives a second chain wheel arranged on the feeding pipe to rotate through a second chain wheel and a second chain when rotating, the second chain wheel drives the connected feeding pipe to rotate, and two meshed second gears are arranged between the two feeding pipes, so that when one feeding pipe rotates, the other feeding pipe also rotates together, so that the two sieve barrels rotate simultaneously in the box body, metal substances in soil are sucked by a plurality of first magnets on the inner wall of the sieve barrel, and fine soil leaks out of the sieve barrel and flows towards the inner cavity at the bottom of the box body;

step three: the soil screened by the screening barrel flows onto the belt conveyor from the guide plate, the belt conveyor is controlled to operate by the control panel, the second magnet on the filter screen absorbs heavy metals remaining in the soil and conveys the heavy metals to the scraper at the right side of the belt conveyor, the scraper scrapes the heavy metals off the filter screen and guides the heavy metals to flow into the collection box for storage, meanwhile, the second motor drives the roller to rotate, two circular plates on the roller rotate in two through holes, when teeth on the circular plates are meshed with a plurality of tooth sockets on the inner wall of the top of the through holes, the supporting plate is pushed to move backwards, when the teeth on the circular plates are meshed with the plurality of tooth sockets on the inner wall of the bottom of the through holes, the supporting plate is pushed to move forwards, and the teeth on the circular plates are frequently contacted with the tooth sockets, and the supporting plate is driven to move forwards and backwards in the chute to screen the soil;

step four: after the heavy metal filter screen is used for a period of time, a worker controls the electromagnetic valve on one feeding pipe to be closed by using the control panel, so that soil flows into the communicated screen barrel from the other feeding pipe to be continuously screened, then the worker rotates the rotating shaft to seal the opening of the ring plate by using the sealing plate, then pulls the pull rod to drive the connected baffle plate, the reinforcing rod and the ring plate to move out of the screen barrel, the ring plate scrapes off heavy metal adsorbed on the first magnet when moving, so that the filtered heavy metal flows into the collection box from the ring to be stored, resets the ring plate again after the cleaning is finished, and cleans the heavy metal in the other screen barrel according to the operation;

step five: soil after belt conveyor sieves falls on the grid plate, fall the bottom of box after a plurality of openings on the grid plate dispersion again, use the water pump with the restoration liquid in the liquid storage tank carry the inside water cavity of grid plate, restoration liquid is spout from a plurality of shower nozzles on the grid plate, with the interior soil full contact of grid plate opening mix, a plurality of shower nozzles on the standpipe upwards spout restoration liquid, restoration liquid and the soil contact of whereabouts, around soil, the bottom all sprays, handle the inside heavy metal ion of soil, the backup pad drives a plurality of long slabs back-and-forth movement on the grid plate simultaneously, the long slab scrapes the soil of adhesion on the grid plate, at last reuse screw conveyer will handle good soil and discharge from the box.

The invention has the technical effects and advantages that:

1. according to the invention, the second motor is started to rotate, the second motor drives the feeding pipes to rotate through the second chain wheel and the second chain, the two meshed second gears are arranged between the two feeding pipes, so that the two sieve barrels rotate in the box body simultaneously, metal substances in soil are attracted by the first magnets on the inner walls of the sieve barrels, fine soil leaks out of the sieve barrels, the sieving effect on heavy metals is improved, and meanwhile, the soil is secondarily sieved by the filter screen on the belt conveyor, so that the treatment effect on the heavy metals in the soil is further improved.

2. The solenoid valve through controlling one of them inlet pipe is closed, make soil all flow to the sieve bucket in from another inlet pipe and continue to handle, then rotate the pivot and drive the closing plate and seal the crown plate opening, the pulling pull rod drives the baffle, anchor strut and crown plate shift out from the sieve bucket, the crown plate will adsorb the heavy metal on first magnet when removing and scrape, the heavy metal that makes the filtration get off flows to the collection incasement from the lantern ring and stores, the back is accomplished in the clearance, reset again the crown plate, according to the operation, heavy metal to another sieve bucket is cleared up, utilize two sieve buckets to use together, need not stop whole device, realize the continuous operation of device, greatly, and the work efficiency is improved.

3. Screening soil through the filter screen on the belt conveyor, second magnet on the filter screen catches residual heavy metal in with soil and carries scraper blade department, the scraper blade scrapes heavy metal from the filter screen, make the heavy metal flow to collect the incasement and store, simultaneously the second motor drives the roller bearing rotation, when tooth on the plectane and a plurality of tooth's socket that are located through-hole top inner wall mesh, promote the backup pad and move backward, when tooth on the plectane and a plurality of tooth's socket that are located through-hole bottom inner wall mesh, promote the backup pad again and move forward, utilize tooth and tooth's socket frequent contact on the plectane, thereby drive backup pad back-and-forth movement in the spout, drive belt conveyor round trip movement, avoid soil to pile up and cause the filter screen to block up together, thereby improve the screening efficiency of filter screen.

4. Carry the inside water cavity of grid plate through using the restoration liquid of water pump in with the liquid storage tank, restoration liquid is through the water cavity, communicating pipe and hose flow are to four water storage pipes in, a plurality of shower nozzles blowout of restoration liquid on the grid plate, with the interior soil fully contact of grid plate opening mix, a plurality of shower nozzles on the water storage pipe are the blowout restoration liquid that makes progress, the soil contact of restoration liquid and whereabouts, around soil, the bottom all sprays, restoration liquid is bigger with soil contact range, improve the remediation efficiency of soil, and improve the treatment effect to the inside heavy metal ion of soil.

5. Through a plurality of long boards of installation in two backup pads bottoms, when a plurality of long boards followed the backup pad back-and-forth movement, can scrape the opening with soil on the net board in, avoid soil to pile up on the net board, utilize the backup pad to drive the long board and remove, reduce drive assembly's use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the case of the present invention;

FIG. 3 is a cross-sectional view of a screen barrel of the present invention;

FIG. 4 is a view showing the construction of a circular plate according to the present invention;

FIG. 5 is a view of the solenoid valve and feed tube configuration of the present invention;

FIG. 6 is a sectional view of the collection bin of the present invention;

FIG. 7 is a cross-sectional view of the chute of the present invention;

FIG. 8 is an enlarged view of section A of FIG. 7 according to the present invention;

FIG. 9 is a block diagram of the elongated plate, support plate and grid plate of the present invention;

FIG. 10 is a view showing a structure of a sealing plate and a rotary shaft of the present invention;

FIG. 11 is a cross-sectional view of a grid plate of the present invention;

fig. 12 is a structural view of a water storage tube according to the present invention.

The reference signs are: 1. a box body; 2. a screen barrel; 3. a first magnet; 4. a feed pipe; 5. a ring plate; 6. a sealing plate; 7. an electromagnetic valve; 8. a reinforcing rod; 9. a rotating shaft; 10. a baffle plate; 11. a collar; 12. a pull rod; 13. a baffle; 14. a belt conveyor; 15. a support plate; 16. a chute; 17. a filter screen; 18. a second magnet; 19. a grid plate; 20. a water chamber; 21. a screw conveyor; 22. a crushing box; 23. a feed hopper; 24. a connecting shaft; 25. a crushing roller; 26. a first gear; 27. a first motor; 28. a first bracket; 29. a screw rod; 30. a first sprocket; 31. a first chain; 32. a through hole; 33. a tooth socket; 34. a circular plate; 35. teeth; 36. a roller; 37. a second motor; 38. a second bracket; 39. a second gear; 40. a second sprocket; 41. a second chain; 42. a liquid storage tank; 43. a water pump; 44. a spray head; 45. a collection box; 46. a first discharge hole; 47. a second discharge hole; 48. a squeegee; 49. a door panel; 50. supporting legs; 51. a control panel; 52. a water storage pipe; 53. a conical strainer cover; 54. a long plate; 55. a hose; 56. a communication pipe is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1, 2, 3 and 6 in the specification, the soil remediation device for heavy metal pollution of the embodiment comprises a box body 1, two sieve barrels 2 distributed in the front and back are arranged at the top end of an inner cavity of the box body 1, a crushing assembly is connected to one side of the top end of the box body 1 and comprises a crushing box 22, the crushing box 22 is fixed to one end of the box body 1, a feed hopper 23 penetrates through the top end of the crushing box 22, the bottom end of the feed hopper 23 is communicated with the inside of the crushing box 22, two connecting shafts 24 distributed in the front and back penetrate through one end of the crushing box 22, one ends of the two connecting shafts 24 extend to the inner side of the crushing box 22 and are connected with the inner wall of the crushing box 22 through bearings, a crushing roller 25 is sleeved outside the connecting shafts 24, the crushing roller 25 can crush soil firstly, so as to facilitate subsequent screening treatment, first gears 26 are fixed to one ends of the two connecting shafts 24, the two first gears 26 are meshed with each other, one end of the crushing box 22 is provided with a first motor 27, the first motor 27 is used as a power source, the first motor 27 is high in power and does not need manual operation, the processing effect is better when the crushing box is used, the first motor 27 is fixedly connected with the outer end of the crushing box 22 through a first support 28, one end of an output shaft of the first motor 27 is fixedly connected with the outer end of the first gear 26 positioned behind the crushing box 22, one ends of the two feeding pipes 4 penetrate through the crushing box 22 and are connected with the crushing box 22 through bearings, the front end of the box body 1 is fixedly provided with a control panel 51, the control panel 51 is connected with the water pump 43, the second motor 37, the first motor 27, the screw conveyor 21, the belt conveyor 14 and the input end of the electromagnetic valve 7, the control panel 51 is used for controlling the device, and the operation and control of workers are facilitated;

broken case 22 inboard is equipped with two hob 29 for carry the soil after smashing, broken case 22 is run through to two hob 29 one end and extends to broken case 22 outside, and two hob 29 other ends extend to the inlet pipe 4 inboard, are located between connecting axle 24 and the hob 29 in broken case 22 the place ahead, all link through drive assembly between connecting axle 24 and the hob 29 that is located broken case 22 rear, drive assembly includes two first sprocket 30, and two first sprocket 30 overlap respectively and establish in the connecting axle 24, the hob 29 outside, connect through first chain 31 between two first sprocket 30, utilize first chain 31 and two first sprocket 30 to link connecting axle 24 and hob 29 together, can reduce the use of first motor 27 quantity.

The implementation scenario is specifically as follows: the staff is connected with feeder hopper 23 with the pipeline of carrying soil earlier, soil flows to broken case 22 through feeder hopper 23 in, it is rotatory to use control panel 51 to control first motor 27, the first gear 26 that the drive is connected with first motor 27 is rotatory, it is rotatory to drive another first gear 26 when this first gear 26 is rotatory, make two connecting axles 24 rotatory simultaneously, two connecting axles 24 drive crushing roller 25 and rotate and smash soil, smash into tiny granule with metal in the soil, every connecting axle 24 all drives corresponding hob 29 rotatory through first sprocket 30 and first chain 31 when rotatory, two hob 29 are rotatory in carrying the soil in broken case 22 to inlet pipe 4, flow to two sieve buckets 2 from two inlet pipes 4 respectively.

Referring to the attached drawings 1, 2, 3, 4, 5, 6 and 10 in the specification, in the soil remediation device for heavy metal pollution of the embodiment, a plurality of first magnets 3 are embedded in the inner wall of the sieve barrel 2, the first magnets 3 can suck out heavy metals to treat the heavy metals in the soil first, one end of each sieve barrel 2 is provided with a feed pipe 4 in a penetrating manner, a driving assembly is arranged between the two feed pipes 4, two sides of the inner cavity of the sieve barrel 2 are respectively provided with a ring plate 5 and a sealing plate 6, the feed pipes 4 penetrate through the ring plate 5 and are communicated with the inside of the sieve barrel 2, the two feed pipes 4 are respectively and fixedly provided with an electromagnetic valve 7, the electromagnetic valves 7 are used for conveniently controlling the circulation of the feed pipes 4, two reinforcing rods 8 are fixedly arranged between the sealing plate 6 and the ring plate 5, one side of the ring plate 5, which is close to the sealing plate 6, is connected with a rotating shaft 9 through a bearing, and the outer wall of the rotating shaft 9 is fixedly provided with a baffle plate 10, the diameter of the baffle plate 10 is the same as that of an opening in the ring plate 5, one side of the sieve barrel 2, which is far away from the feeding pipe 4, is sleeved with a lantern ring 11 through a bearing, the ring plate 5 and the baffle plate 10 are guided, one side of the baffle plate 10, which is far away from the ring plate 5, is fixedly provided with a pull rod 12, one end of the box body 1, which is far away from the crushing box 22, is fixedly provided with a collecting box 45, the ring plate 5 and the baffle plate 10 are pulled to drive heavy metals in the sieve barrel 2 to flow into the collecting box 45, the surfaces of the collecting box 45 and the box body 1, which are close to each other, are provided with a first discharge hole 46 and two second discharge holes 47, the two second discharge holes 47 are respectively arranged at the right side of the two lantern rings 11, the two lantern rings 11 respectively penetrate through the second discharge holes 47 and are communicated with the inner cavity of the collecting box 45, the surface of the collecting box 45, which is far away from one end of the box body 1, is provided with an outlet, a door panel 49 is hinged in the outlet, the collecting box 45 and the bottom end of the crushing box 22 are both fixedly provided with two supporting legs 50, improving the stability of the crushing tank 22 and the collection tank 45 in use;

one end of the roller 36 is fixedly provided with a second motor 37, the second motor 37 is used as a power source, manual operation is not needed, the working efficiency is high, second motor 37 bottom is through second support 38 and box 1 outside fixed connection, drive assembly includes two second gears 39 and two second sprockets 40, two second gears 39 overlap respectively and establish in the two inlet pipes 4 outsides, mesh mutually between two second gears 39, two second sprockets 40 overlap respectively and establish in the roller bearing 36 outside and be located the inlet pipe 4 outside in box 1 the place ahead, connect through second chain 41 between two second sprockets 40, do benefit to second sprocket 40 and second chain 41 with roller bearing 36 and inlet pipe 4 linkage together, use a second motor 37 just can drive sieve bucket 2 and plectane 34 function, greatly reduced the use of motor quantity, thereby the cost of device has been reduced.

The implementation scenario is specifically as follows: when soil flows into the sieve barrels 2, the control panel 51 is used for controlling the second motor 37 to rotate, when the second motor 37 rotates, the second chain wheel 40 and the second chain 41 drive the second chain wheel 40 arranged on the feeding pipes 4 to rotate, the second chain wheel 40 drives the connected feeding pipes 4 to rotate, because the two second gears 39 are arranged between the two feeding pipes 4 to be meshed, when one feeding pipe 4 rotates, the other feeding pipe 4 also rotates together, so that the two sieve barrels 2 rotate in the box body 1 simultaneously, metal substances in the soil are sucked by the first magnets 3 on the inner wall of the sieve barrel 2, fine soil leaks out of the sieve barrel 2 and flows to the inner cavity at the bottom of the box body 1, after the soil is used for a period of time, a worker firstly uses the control panel 51 to control the electromagnetic valve 7 on one feeding pipe 4 to close, so that the soil flows into the sieve barrel 2 communicated with the other feeding pipe 4 to continue to be sieved, then the staff rotates pivot 9 and utilizes closing plate 6 to live 5 openings of crown plate sealed, pull rod 12 again and drive baffle 10 of connection, anchor strut 8 and crown plate 5 shift out from sieve bucket 2, crown plate 5 will adsorb the heavy metal on first magnet 3 when removing and scrape off, make the heavy metal that filters down flow to collection box 45 interior storage from the lantern ring 11, after the clearance is accomplished, reset crown plate 5 again, according to the aforesaid operation, clear up the heavy metal in another sieve bucket 2, utilize two sieve buckets 2 to use together, need not stop whole device, realize the continuous operation of device, greatly improve work efficiency.

Referring to the attached

drawings

2, 4, 6, 7, 8 and 9 in the specification, in the soil remediation device for heavy metal pollution of the embodiment, a guide plate 13 is arranged between a belt conveyor 14 and a screen barrel 2, the guide plate 13 is fixed on the inner side of a box body 1, so that soil flows to the center of the belt conveyor 14, screening is facilitated, the belt conveyor 14 is arranged below the screen barrel 2, supporting plates 15 are fixedly arranged at two ends of the belt conveyor 14, a filter screen 17 is embedded on the conveyor belt of the belt conveyor 14, a plurality of second magnets 18 are embedded on the outer side surface of the filter screen 17, and the second magnets 18 are used for absorbing heavy metals remaining in the soil, so that the treatment effect on the heavy metals in the soil is improved;

the inner wall surfaces of two sides of the inner cavity of the box body 1 are respectively provided with a sliding groove 16, two supporting plates 15 are arranged on the inner side of the sliding groove 16 and are in sliding connection with the sliding groove 16, through holes 32 are respectively formed in the two supporting plates 15, the top ends and the bottom ends of the inner walls of the through holes 32 are respectively provided with a circular plate 34, the top end of each circular plate 34 is fixedly provided with a plurality of teeth 35, the teeth 35 on each circular plate 34 are frequently contacted with the teeth grooves 33 to drive the supporting plates 15 to move back and forth in the sliding grooves 16 to shake the soil on the filter screen 17 for facilitating the screening treatment of the soil, the teeth 35 are meshed with the plurality of teeth grooves 33 on the top ends of the inner walls of the through holes 32, a rolling shaft 36 penetrates between the two circular plates 34, one end of the rolling shaft 36 penetrates through the box body 1 and extends to the outer side of the box body 1, the other end of the rolling shaft 36 is connected with the inner side of the box body 1 through a bearing, one end of the rolling shaft 36 is fixedly provided with a second motor 37, the second motor 37 is used as a power source, manual operation is not needed, the working efficiency is high, the bottom end of the second motor 37 is fixedly connected with the outer side of the box body 1 through a second support 38, the driving assembly comprises two second gears 39 and two second chain wheels 40, the two second gears 39 are respectively sleeved on the outer sides of the two feeding pipes 4, the two second gears 39 are meshed with each other, the two second chain wheels 40 are respectively sleeved on the outer sides of the rolling shafts 36 and the outer sides of the feeding pipes 4 positioned in front of the box body 1, and the two second chain wheels 40 are connected through second chains 41;

the fixed collecting box 45 that is equipped with of broken case 22 one end is kept away from to box 1, first discharge opening 46 and two second discharge openings 47 have been seted up on the surface that collecting box 45 and box 1 are close to, first discharge opening 46 is established in belt conveyor 14 right side, the fixed scraper blade 48 that is equipped with in first discharge opening 46 inner wall, scraper blade 48 one end contacts with filter screen 17 outside surface, utilizes scraper blade 48 to scrape off the heavy metal on the filter screen 17, is convenient for collect heavy metal.

The implementation scenario is specifically as follows: soil sieved by the two sieve barrels 2 flows to the belt conveyor 14 at the bottom through the guide plate 13 in the box body 1, the belt conveyor 14 is controlled by the control panel 51 to operate, the soil is sieved by the filter screen 17 on the belt conveyor 14, the heavy metal remained in the soil is absorbed by the second magnet 18 on the filter screen 17 and is conveyed to the scraper 48 at the right side of the belt conveyor 14, the scraper 48 scrapes the heavy metal off the filter screen 17 and flows into the collection box 45 to be stored after being guided by the scraper 48, meanwhile, the second motor 37 drives the roller 36 to rotate, the two circular plates 34 on the roller 36 rotate in the two through holes 32, when the teeth 35 on the circular plates 34 are meshed with the plurality of tooth spaces 33 on the top inner wall of the through holes 32, the support plate 15 is pushed to move backwards, and when the teeth 35 on the circular plates 34 are meshed with the plurality of tooth spaces 33 on the bottom inner wall of the through holes 32, the supporting plate 15 is pushed to move forwards, the teeth 35 on the circular plate 34 are frequently contacted with the tooth grooves 33, so that the supporting plate 15 is driven to move back and forth in the sliding groove 16, the belt conveyor 14 is driven to move back and forth, the situation that the filtering net 17 is blocked due to the fact that soil is accumulated together is avoided, and the screening speed of the filtering net 17 is increased.

Referring to the attached drawings 1, 2, 6, 7, 9, 11 and 12 of the specification, in the soil remediation device for heavy metal pollution of the embodiment, a grid plate 19 is arranged below a belt conveyor 14, a water cavity 20 is formed inside the grid plate 19, four water storage pipes 52 are fixedly arranged at the bottom end of an inner cavity of a box body 1, a plurality of spray heads 44 are fixedly arranged at the top end of each water storage pipe 52 and the inner side wall of each opening of the grid plate 19, a conical filter screen cover 53 is fixedly arranged at the spray position of each spray head 44, when soil falls onto the surface of the conical filter screen cover 53, the soil directly slides off the conical filter screen cover 53, the spray heads 44 are protected by the conical filter screen cover 53, the soil is prevented from being accumulated at the spray position of the spray heads 44 and being blocked, four long plates 54 are fixedly arranged between the bottom ends of two support plates 15, the bottom ends of the four long plates 54 are all contacted with the top end of the grid plate 19, and when the long plates 54 move back and forth along with the support plates 15, the soil falling to the top end of the grid plate 19 is scraped into the opening in the grid plate 19, so that the soil is prevented from being accumulated;

the device comprises a box body 1, a liquid storage tank 42 is fixedly arranged at one end of the box body 1, the liquid storage tank 42 is fixedly arranged at one end of the box body 1, a water pump 43 is fixedly communicated with the front end of the liquid storage tank 42, one end of a water outlet pipe of the water pump 43 penetrates through the box body 1 and a grid plate 19 and is communicated with a water cavity 20 inside the grid plate 19, four water storage pipes 52 are communicated with each other through a hose 55, the top end of the water storage pipe 52 positioned at the left side of the box body 1 is communicated with the water cavity 20 inside the grid plate 19 through a communicating pipe 56, a repairing liquid in the liquid storage tank 42 is automatically conveyed into the water cavity 20 of the grid plate 19 and the four water storage pipes 52 by the water pump 43 without manual operation, a screw conveyor 21 is fixedly arranged at the bottom end of the box body 1, the screw conveyor 21 is arranged below the four water storage pipes 52, one end of the screw conveyor 21 penetrates through the box body 1 and extends to the inner side of the box body 1, and the treated soil is conveyed out of the box body 1 by the screw conveyor 21, does not need manual operation, and is time-saving and labor-saving when in use.

The implementation scenario is specifically as follows: the soil screened by the belt conveyor 14 falls onto the grid plate 19, is scattered by a plurality of openings on the grid plate 19 and then falls onto the bottom of the box body 1, the repairing liquid in the liquid storage tank 42 is conveyed into the water cavity 20 inside the grid plate 19 by using the water pump 43, the repairing liquid is sprayed out by four spray heads 44 in each opening of the grid plate 19, fully contacts and mixes with the soil, a part of the repairing liquid in the water cavity is conveyed into the four water storage pipes 52 through the communicating pipes 56 and the hoses 55, and then is sprayed out from a plurality of spray heads 44 at the top ends of the four water storage pipes 52 to be mixed with the soil, the contact range of the repair liquid and the soil is larger by spraying the repair liquid on the periphery and the bottom of the soil, thereby improve the remediation efficiency of soil, be convenient for handle the inside heavy metal ion of soil, reuse screw conveyer 21 at last with the good soil of handling discharge from box 1, just can use soil.

And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. A soil prosthetic devices for heavy metal pollution, including box (1), its characterized in that: one side of the top end of the box body (1) is connected with a crushing assembly, the top end of an inner cavity of the box body (1) is provided with two sieve barrels (2) which are distributed front and back, the inner wall of each sieve barrel (2) is embedded with a plurality of first magnets (3), one end of each sieve barrel (2) is provided with a feed pipe (4) in a penetrating manner, a driving assembly is arranged between the two feed pipes (4), two sides of the inner cavity of each sieve barrel (2) are respectively provided with a ring plate (5) and a sealing plate (6), the feed pipes (4) penetrate through the ring plates (5) and are communicated with the inside of the sieve barrels (2), electromagnetic valves (7) are fixedly arranged on the two feed pipes (4), two reinforcing rods (8) are fixedly arranged between the sealing plates (6) and the ring plates (5), one side, close to the sealing plate (6), of the ring plates (5) is connected with a rotating shaft (9) through a bearing, the outer wall of the rotating shaft (9) is fixedly provided with a baffle plate (10), a pull rod (12) is fixedly arranged on one side, far away from the annular plate (5), of the baffle plate (10);

a belt conveyor (14) is arranged below the screen barrel (2), supporting plates (15) are fixedly arranged at two ends of the belt conveyor (14), a filter screen (17) is embedded on the conveyor belt of the belt conveyor (14), a plurality of second magnets (18) are embedded on the outer side surface of the filter screen (17), sliding grooves (16) are formed in the inner wall surfaces of two sides of an inner cavity of the box body (1), the two supporting plates (15) are arranged on the inner sides of the sliding grooves (16) and are in sliding connection with the sliding grooves (16), through holes (32) are formed in the two supporting plates (15), a plurality of tooth sockets (33) are formed in the top end and the bottom end of the inner wall of each through hole (32), circular plates (34) are arranged in the two through holes (32), a plurality of teeth (35) are fixedly arranged at the top ends of the circular plates (34), and the teeth (35) are meshed with the plurality of tooth sockets (33) on the top end of the inner wall of each through hole (32), a roller (36) penetrates between the two circular plates (34);

a grid plate (19) is arranged below the belt conveyor (14), a water cavity (20) is formed in the grid plate (19), four water storage pipes (52) are fixedly arranged at the bottom end of an inner cavity of the box body (1), a plurality of spray heads (44) are fixedly arranged at the top end of each water storage pipe (52) and the inner side wall of each opening of the grid plate (19), and a conical filter screen cover (53) is fixedly arranged at the liquid spraying position of each spray head (44);

and one end of the box body (1) is fixedly provided with an infusion component.

2. The device for remediating heavy metal contaminated soil as recited in claim 1, wherein: broken subassembly includes broken case (22), broken case (22) are fixed in box (1) one end, broken case (22) top is run through and is equipped with feeder hopper (23), feeder hopper (23) bottom and inside being linked together of broken case (22), broken case (22) one end is run through connecting axle (24) that are equipped with two front and back distributions, and two connecting axle (24) one end extend to broken case (22) inboardly and through bearing and broken case (22) inner wall connection, connecting axle (24) outside cover is equipped with crushing roller (25).

3. The device for remediating heavy metal contaminated soil as recited in claim 2, wherein: two connecting axle (24) one end are all fixed and are equipped with first gear (26), mesh between two first gear (26), broken case (22) one end is equipped with first motor (27), first motor (27) are through first support (28) and broken case (22) outer end fixed connection, first motor (27) output shaft one end and first gear (26) outer end fixed connection who is located broken case (22) rear, and two inlet pipe (4) one end all run through broken case (22) and are connected with broken case (22) through the bearing, broken case (22) inboard is equipped with two hob (29), and broken case (22) are run through to two hob (29) one end and extend to broken case (22) outside, and two hob (29) other ends extend to inlet pipe (4) inboard.

4. The device for remediating heavy metal contaminated soil as recited in claim 3, wherein: all link through drive assembly between connecting axle (24) and hob (29) that are located broken case (22) the place ahead, are located between connecting axle (24) and hob (29) at broken case (22) rear, drive assembly includes two first sprocket (30), and two first sprocket (30) are established respectively and are established in connecting axle (24), hob (29) outside, connect through first chain (31) between two first sprocket (30).

5. The device for remediating heavy metal contaminated soil as recited in claim 1, wherein: be equipped with between belt conveyor (14) and sieve bucket (2) guide plate (13), guide plate (13) are fixed in box (1) inboardly, roller bearing (36) one end runs through box (1) and extends to the box (1) outside, the roller bearing (36) other end passes through the bearing and is connected with box (1) inboard, fixedly between two backup pad (15) bottoms be equipped with four long board (54), and four long board (54) bottoms all contact with grid plate (19) top.

6. The device for remediating heavy metal contaminated soil as recited in claim 3, wherein: roller bearing (36) one end is fixed and is equipped with second motor (37), second motor (37) bottom is through second support (38) and box (1) outside fixed connection, drive assembly includes two second gear (39) and two second sprocket (40), and two inlet pipe (4) outsides are established respectively to two second gear (39), mesh mutually between two second gear (39), and inlet pipe (4) the outside that just is located box (1) the place ahead is established in the roller bearing (36) outside respectively in two second sprocket (40), connects through second chain (41) between two second sprocket (40).

7. The device for remediating heavy metal contaminated soil as recited in claim 6, wherein: infusion subassembly includes liquid storage pot (42), liquid storage pot (42) are fixed in box (1) one end, the fixed intercommunication of liquid storage pot (42) front end has water pump (43), the outlet pipe one end of water pump (43) runs through box (1) and grid plate (19) and is linked together with inside water cavity (20) of grid plate (19), is linked together through hose (55) between four standpipe (52), is located water cavity (20) that communicating pipe (56) and grid plate (19) were linked together on left standpipe (52) top of box (1), box (1) bottom mounting is equipped with screw conveyer (21), screw conveyer (21) are established in four standpipe (52) below, screw conveyer (21) one end runs through box (1) and extends to box (1) inboard.

8. The device for remediating heavy metal contaminated soil as recited in claim 1, wherein: the diameter of the baffle plate (10) is the same as that of an inner opening of the ring plate (5), one side, far away from the feeding pipe (4), of the sieve barrel (2) is provided with a sleeve ring (11) through a bearing sleeve, one end, far away from the crushing box (22), of the box body (1) is fixedly provided with a collecting box (45), the surface, close to the collecting box (45) and the box body (1), of the collecting box (45) is provided with a first discharge hole (46) and two second discharge holes (47), the first discharge hole (46) is arranged on the right side of the belt conveyor (14), the inner wall of the first discharge hole (46) is fixedly provided with a scraper (48), one end of the scraper (48) is in contact with the outer side surface of the filter screen (17), the two second discharge holes (47) are respectively arranged on the right sides of the two sleeve rings (11), the two sleeve rings (11) respectively penetrate through the second discharge holes (47) and are communicated with the inner cavity of the collecting box (45), and the surface, one end, far away from the box body (1), of the collecting box (45), is provided with an outlet, a door plate (49) is hinged in the outlet, and two supporting legs (50) are fixedly arranged at the bottom ends of the collecting box (45) and the crushing box (22).

9. The device for remediating heavy metal contaminated soil as recited in claim 7, wherein: the box body (1) front end is fixed and is equipped with control panel (51), control panel (51) are connected with water pump (43), second motor (37), first motor (27), screw conveyer (21), belt conveyor (14) and solenoid valve (7)'s input.

10. A method for remediating a heavy metal contaminated soil remediation device as defined in any one of claims 1 to 9, comprising: the method comprises the following specific steps:

the method comprises the following steps: connecting a pipeline for conveying soil with a feed hopper (23), flowing the soil into a crushing box (22) through the feed hopper (23), controlling a first motor (27) to rotate by using a control panel (51), driving a first gear (26) connected with the first motor (27) to rotate, the first gear (26) drives the other first gear (26) to rotate when rotating, so that the two connecting shafts (24) rotate simultaneously, the two connecting shafts (24) drive the crushing roller (25) to rotate to crush soil, metal in the soil is crushed into fine particles, each connecting shaft (24) drives the corresponding spiral rod (29) to rotate through the first chain wheel (30) and the first chain (31) when rotating, the two spiral rods (29) rotate to convey the soil in the crushing box (22) into the feeding pipes (4), and then the soil respectively flows into the two sieve barrels (2) from the two feeding pipes (4);

step two: the control panel (51) is used for controlling the second motor (37) to rotate, the second chain wheel (40) arranged on the feeding pipe (4) is driven to rotate by the second chain wheel (40) and the second chain (41) when the second motor (37) rotates, the second chain wheel (40) drives the connected feeding pipes (4) to rotate, two meshed second gears (39) are arranged between the two feeding pipes (4), so that when one feeding pipe (4) rotates, the other feeding pipe (4) also rotates together, the two sieve barrels (2) rotate simultaneously in the box body (1), metal substances in soil are sucked by the first magnets (3) on the inner wall of the sieve barrel (2), and fine soil leaks from the sieve barrel (2) and flows to the inner cavity at the bottom of the box body (1);

step three: soil sieved by the sieving barrel (2) flows onto the belt conveyor (14) from the guide plate (13), the belt conveyor (14) is controlled to operate by using the control panel (51), the heavy metal remained in the soil is absorbed by the second magnet (18) on the filter screen (17) and is conveyed to the scraper (48) on the right side of the belt conveyor (14), the heavy metal is scraped off from the filter screen (17) by the scraper (48) and flows into the collecting box (45) for storage after being guided by the scraper (48), meanwhile, the roller (36) is driven by the second motor (37) to rotate, the two circular plates (34) on the roller (36) rotate in the two through holes (32), when the teeth (35) on the circular plates (34) are meshed with the plurality of tooth spaces (33) on the top inner wall of the through holes (32), the support plate (15) is pushed to move backwards, and when the teeth (35) on the circular plates (34) are meshed with the plurality of tooth spaces (33) on the bottom inner wall of the through holes (32), then the supporting plate (15) is pushed to move forwards, the teeth (35) on the circular plate (34) are frequently contacted with the tooth grooves (33), and the supporting plate (15) is driven to move forwards and backwards in the sliding groove (16) to shake off and screen soil;

step four: after the heavy metal cleaning device is used for a period of time, a worker controls the electromagnetic valve (7) on one feeding pipe (4) to be closed by using the control panel (51), so that soil flows into the sieve barrel (2) communicated with the other feeding pipe (4) to continue to be screened, then the worker rotates the rotating shaft (9) to seal the opening of the ring plate (5) by using the sealing plate (6), then pulls the pull rod (12) to drive the connected baffle plate (10), the reinforcing rod (8) and the ring plate (5) to move out of the sieve barrel (2), the ring plate (5) scrapes off heavy metals adsorbed on the first magnet (3) during movement, so that the filtered heavy metals flow into the collection box (45) from the sleeve ring (11) to be stored, and resets the ring plate (5) again after cleaning is completed, and according to the operation, the heavy metals in the other sieve barrel (2) are cleaned;

step five: the soil screened by the belt conveyor (14) falls onto the grid plate (19), is dispersed by a plurality of openings on the grid plate (19) and then falls onto the bottom of the box body (1), a water pump (43) is used for conveying the repairing liquid in the liquid storage tank (42) into the water cavity (20) inside the grid plate (19), the repairing liquid is sprayed out from a plurality of spray heads (44) on the grid plate (19), fully contacts and mixes with the soil in the opening of the grid plate (19), a plurality of spray heads (44) on the water storage pipe (52) upwards spray repairing liquid, the repairing liquid contacts with the falling soil and sprays around and at the bottom of the soil, the heavy metal ions in the soil are treated, meanwhile, the supporting plate (15) drives the long plates (54) to move back and forth on the grid plate (19), the long plates (54) scrape the soil adhered to the grid plate (19), and finally, the treated soil is discharged from the box body (1) by using the screw conveyor (21).