US20210187572A1 - Apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same - Google Patents
Apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same Download PDFInfo
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- US20210187572A1 US20210187572A1 US17/256,177 US202017256177A US2021187572A1 US 20210187572 A1 US20210187572 A1 US 20210187572A1 US 202017256177 A US202017256177 A US 202017256177A US 2021187572 A1 US2021187572 A1 US 2021187572A1
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- housing
- crushing
- fixedly connected
- rod
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/14—Edge runners, e.g. Chile mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C2019/183—Crushing by discharge of high electrical energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/38—Adding fluid, other than for crushing or disintegrating by fluid energy in apparatus having multiple crushing or disintegrating zones
Definitions
- the present invention relates to the field of soil remediation, and more specifically, to an apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same.
- Soil contamination with heavy metals is typically caused by the accumulation of heavy metals that cannot be decomposed by soil microorganisms, resulting in an excessive level of heavy metal concentration in the soil.
- Such heavy metals at a high concentration are consequently toxic and at times fatal to animals and plants, which is very hazardous.
- a variety of heavy metals can contaminate soil.
- the discharged effluent contains a large amount of copper and nickel, resulting in an excessive concentration level of copper and nickel metals in the contaminated soil.
- the heavy metal contaminated soils are typically redressed by techniques including physical remediation, chemical remediation, microbial remediation and phytoremediation.
- Microbial remediation and phytoremediation are energy-saving, environmentally friendly, and highly effective, but require a long remediation cycle.
- an objective of the present invention is to provide an apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same, which can achieve a good remediation effect while realizing fully-automatic remediation.
- the present invention adopts the following technical solutions.
- An apparatus for remediation of a copper and nickel co-contaminated soil includes a housing.
- a crushing device is arranged at the upper part of the inside of the housing.
- a sliding block is connected to both sides of the middle of the outer surface of the crushing device, a slide channel matched with the sliding block is provided at the upper part of the inner wall of the housing, and the crushing device is slidably connected to the slide channel through the sliding block.
- a support rod is arranged at the upper part of the inside of the crushing device, and both ends of the support rod are fixedly connected to the inner wall of the crushing device.
- a first motor is fixedly connected to the middle of the upper surface of the support rod, and an output shaft of the first motor penetrates the support rod and is connected to a crushing rod.
- a crushing disc is arranged under the crushing rod, and the edge of the crushing disc is fixedly connected to the inner wall of the crushing device.
- the upper surface of the crushing disc is provided with a plurality of concentric crushing grooves, and the crushing groove is provided with a plurality of through holes. The through holes penetrate the crushing disc.
- the crushing rod includes a fixed rod and a roller, and the middle of the fixed rod is fixedly connected to the bottom end of the output shaft.
- the roller is sleeved on both sides of the fixed rod, and the outer surface of the roller is provided with crushing teeth matched with the crushing grooves.
- Gear teeth are provided on both sides of the bottom end of the outer surface of the crushing device, and the gear teeth mesh with a teeth-uncompleted gear.
- Two second motors are provided outside the housing, and rotating shafts of the two second motors are separately connected to the teeth-uncompleted gears.
- a stirring device is arranged below the crushing device, and the stirring device includes a spiral shaft.
- One end of each of a plurality of stirring rods is fixedly connected to an upper side of the spiral shaft, and a lower side of the spiral shaft is connected to a spiral blade.
- a small housing is connected to the middle of the lower surface of the housing, and the spiral blade is located inside the small housing and contacts the inner wall of the small housing.
- a feed cavity is formed inside the spiral shaft, and a horizontal rod is connected to a side of the bottom end of the spiral shaft.
- One end of the horizontal rod is perpendicularly connected to the spiral shaft, and the other end of the horizontal rod contacts the inner wall of the small housing.
- the lower surface of the horizontal rod contacts the inner bottom surface of the small housing.
- the horizontal rod is provided with a feed port, and the feed port communicates with the feed cavity.
- An auger is arranged inside the feed cavity, and the auger contacts the inner wall of the feed cavity.
- the top of the feed cavity is provided with a sealing plate, and the edge of the sealing plate is fixedly connected to the inner wall of the feed cavity.
- a third motor is arranged on the sealing plate. The third motor penetrates the sealing plate and is connected to the top end of the auger.
- a discharge port is provided at the upper part of the spiral shaft, and a rotating ring is arranged below the discharge port on the outer surface at the upper part of the spiral shaft.
- a rotating annular groove is provided on a side of the rotating ring adjacent to the spiral shaft.
- the top end of the spiral shaft is located inside a discharge bin, and a lower part of the discharge bin is located inside the rotating annular groove.
- a fourth motor is provided on the top end of the outer surface of the discharge bin. The fourth motor penetrates the top end of the discharge bin and is connected to the spiral shaft.
- the outer surface of the discharge bin is fixedly connected to the inner wall of the housing through a supporting column.
- An anode electrode and a cathode electrode are provided at both ends of the inner bottom of the housing, respectively.
- a sluice gate device is provided between the anode electrode and the stirring rod, and between the cathode electrode and the stirring rod.
- the sluice gate device includes two sluice gate plates and a sluice gate. One side of the two sluice gate plates is fixedly connected to the inner wall of the housing.
- a sluice gate passage is provided on opposite sides of the two sluice gate plates. The bottom end of the sluice gate is slidably arranged inside the sluice gate passage, and the top end of the sluice gate is fixedly connected to the lower surface of the crushing device.
- a sponge layer is connected between the bottoms of the opposite sides of the two sluice gate plates.
- An elastic spring and a T-shaped rod are arranged inside the sponge layer, and the T-shaped rod is located inside the elastic spring.
- the housing is provided with a tapered water outlet under the anode electrode and a tapered water outlet under the cathode electrode.
- the water outlet is provided with a truncated cone-shaped plug.
- the bottom end of the T-shaped rod penetrates the lower part of the housing and is connected to the lower surface of the plug through a connecting rod.
- a wastewater tank is arranged below the water outlet, and the wastewater tank is fixedly connected to the outer wall of the small housing.
- the first motor, the second motor, the third motor, the fourth motor, the anode electrode and the cathode electrode are all electrically connected to a power source.
- the bottom of the sliding block and the bottom of the slide channel are fixedly connected to the two ends of a spring, respectively.
- a tapered tube is provided on the lower side of the crushing disc, and the upper part of the tapered tube is fixedly connected to the inner wall of the crushing device.
- one end of a screw conveyor is arranged inside the discharge bin.
- the other end of the screw conveyor penetrates the discharge bin and the housing, and then extends outward.
- the screw conveyor is connected to the power source.
- an opening and closing door is provided on the outer surface of the housing directly opposite to the discharge bin.
- a method for using the apparatus includes:
- step (1) activating the first motor, the second motor, the third motor, the fourth motor, the anode electrode and the cathode electrode, and then pouring a dry contaminated soil from the top of the crushing device;
- step (2) taking out the remedied soil from the discharge bin.
- the present invention has the following advantages.
- the soil contaminated by copper and nickel is first poured from the top of the crushing device, and then the soil is crushed thoroughly by the crushing device.
- the crushed soil facilitates the movement of copper and nickel metal ions therein toward the electrodes under the action of the anode electrode and the cathode electrode, thereby achieving optimal soil remediation.
- FIG. 1 is a cross-sectional view of the structure of the present invention
- FIG. 2 is an enlarged view of portion A encircled in FIG. 1 according to the present invention
- FIG. 3 is a schematic view of the structure of the upper surface of the crushing disc according to the present invention.
- FIG. 4 is an enlarged view of portion B encircled in FIG. 1 according to the present invention.
- FIG. 5 is a cross-sectional view taken along line C-C in FIG. 1 according to the present invention.
- FIG. 6 is an enlarged view of portion D encircled in FIG. 1 according to the present invention.
- an apparatus for remediation of a copper and nickel co-contaminated soil includes the housing 1 .
- the crushing device 2 is arranged at the upper part of the inside of the housing 1 .
- the sliding block 3 is connected to both sides of the middle of the outer surface of the crushing device 2 .
- the slide channel 4 matched with the sliding block is provided at the upper part of the inner wall of the housing 1 .
- the crushing device 2 is slidably connected to the slide channel 4 through the sliding block 3 .
- the support rod 5 is arranged at the upper part of the inside of the crushing device 2 , and both ends of the support rod 5 are fixedly connected to the inner wall of the crushing device 2 .
- the first motor 6 is fixedly connected to the middle of the upper surface of the support rod 5 .
- the output shaft 7 of the first motor 6 penetrates the support rod 5 and is connected to a crushing rod.
- the crushing disc 8 is arranged under the crushing rod, and the edge of the crushing disc 8 is fixedly connected to the inner wall of the crushing device 2 .
- the upper surface of the crushing disc 8 is provided with a plurality of concentric crushing grooves 9 .
- the crushing groove 9 is provided with a plurality of through holes 10 .
- the through holes 10 penetrate the crushing disc 8 .
- the crushing rod includes the fixed rod 11 and the roller 12 , and the middle of the fixed rod 11 is fixedly connected to the bottom end of the output shaft 7 .
- the roller 12 is sleeved on both sides of the fixed rod 11 , and the outer surface of the roller 12 is provided with crushing teeth 13 matched with the crushing grooves 9 .
- the gear teeth 14 are provided on both sides of the bottom end of the outer surface of the crushing device 2 , and the gear teeth 14 mesh with the teeth-uncompleted gear 15 .
- Two second motors are provided outside the housing 1 , and rotating shafts of the two second motors are separately connected to the teeth-uncompleted gears 15 .
- a dry soil contaminated by copper and nickel is poured from the top of the crushing device, and falls on the crushing disc.
- the roller is driven by the first motor to roll, such that the crushing teeth crush the agglomerated soil in the crushing grooves, and the crushed soil that meets a certain size discharges from the through holes to the bottom.
- the second motor drives the teeth-uncompleted gear to rotate, so that the teeth-uncompleted gears on both sides of the crushing devices mesh with the gear teeth to synchronously drive the crushing devices to ascend and then descend automatically, thereby vibrating the soil.
- the soil is revibrated under the action of the spring and thus falls more smoothly. In this way, the crushed soil falls between the sluice gate devices on both sides through the tapered tube.
- a stirring device is arranged below the crushing device 2 , and the stirring device includes the spiral shaft 18 .
- One end of each of a plurality of stirring rods 19 is fixedly connected to the upper side of the spiral shaft 18 .
- a lower side of the spiral shaft 18 is connected to the spiral blade 20 .
- the small housing 21 is connected to the middle of the lower surface of the housing 1 .
- the spiral blade 20 is located inside the small housing 21 and contacts the inner wall of the small housing 21 .
- the feed cavity 22 is formed inside the spiral shaft 18 , and the horizontal rod 23 is connected to a side of the bottom end of the spiral shaft 18 .
- One end of the horizontal rod 23 is perpendicularly connected to the spiral shaft 18 , and the other end of the horizontal rod 23 contacts the inner wall of the small housing 21 .
- the lower surface of the horizontal rod 23 contacts the inner bottom surface of the small housing 21 .
- the horizontal rod 23 is provided with the feed port 24 , and the feed port 24 communicates with the feed cavity 22 .
- the auger 25 is arranged inside the feed cavity 22 , and the auger 25 contacts the inner wall of the feed cavity 22 .
- the top of the feed cavity 22 is provided with the sealing plate 26 , and the edge of the sealing plate 26 is fixedly connected to the inner wall of the feed cavity 22 .
- the third motor 27 is arranged on the sealing plate 26 .
- the third motor 27 penetrates the sealing plate 26 and is connected to the top end of the auger 25 .
- the discharge port 28 is provided at the upper part of the spiral shaft 18 .
- the rotating ring 29 is arranged below the discharge port on the outer surface at the upper part of the spiral shaft 18 .
- the rotating annular groove 30 is provided on a side of the rotating ring 29 adjacent to the spiral shaft 18 .
- the top end of the spiral shaft 18 is located inside the discharge bin 31 , and the lower part of the discharge bin 31 is located inside the rotating annular groove 30 .
- the fourth motor 32 is provided on the top end of the outer surface of the discharge bin 31 .
- the fourth motor 32 penetrates the top end of the discharge bin 31 and is connected to the spiral shaft 18 .
- the outer surface of the discharge bin 31 is fixedly connected to the inner wall of the housing 1 through a supporting column.
- the anode electrode 33 and the cathode electrode 34 are provided at both ends of the inner bottom of the housing 1 , respectively.
- a sluice gate device is provided between the anode electrode 33 and the stirring rod 19 , and between the cathode electrode 34 and the stirring rod 19 .
- the sluice gate device includes two sluice gate plates 35 and the sluice gate 36 .
- One side of the two sluice gate plates 35 is fixedly connected to the inner wall of the housing 1 .
- the sluice gate passage 37 is provided on opposite sides of the two sluice gate plates.
- the bottom end of the sluice gate 36 is slidably arranged inside the sluice gate passage 37 , and the top end of the sluice gate 36 is fixedly connected to the lower surface of the crushing device 2 .
- the sponge layer 43 is connected between the bottoms of the opposite sides of the two sluice gate plates 35 .
- the elastic spring 38 and the T-shaped rod 39 are arranged inside the sponge layer 43 , and the T-shaped rod 39 is located inside the elastic spring 38 .
- the housing 1 is provided with the tapered water outlet 40 under the anode electrode 33 and the tapered water outlet 40 under the cathode electrode 34 .
- the water outlet 40 is provided with the truncated cone-shaped plug 41 .
- the bottom end of the T-shaped rod 39 penetrates the lower part of the housing 1 and is connected to the lower surface of the plug 41 through a connecting rod.
- the wastewater tank 42 is arranged below the water outlet 40 , and the wastewater tank 42 is fixedly connected to the outer wall of the small housing 21 .
- the first motor 6 , the second motor, the third motor 27 , the fourth motor 32 , the anode electrode 33 and the cathode electrode 34 are all electrically connected to a power source.
- the crushed soil is quickly mixed with an aqueous solution under the action of the stirring rod.
- the liquid level of the aqueous solution is higher than the stirring rod but lower than the bottom of the discharge bin.
- the copper and nickel ions in the soil are quickly attracted by the cathode electrode or the anode electrode, so that all the heavy metal ions are accumulated around the cathode electrode or the anode electrode.
- the sluice gate is driven to close the sluice gate device (which may be incompletely closed, as long as the water discharge speed at the water outlet is faster than the water inlet speed).
- the T-shaped rod is squeezed to drive the plug to descend, so that the water around the cathode electrode or the anode electrode enters the wastewater tank.
- part of the aqueous solution with a high concentration of heavy metals in the aqueous solution is removed, which overcomes the problem that the heavy metal ions are inclined to run away from the cathode electrode or the anode electrode due to the difference in concentration.
- heavy metal ions are quickly removed, and the efficiency of attracting the heavy metal ions by the anode electrode and the cathode electrode is significantly improved, thereby improving the efficiency of soil remediation.
- the soil enters below the stirring rod, then enters the feed cavity through the horizontal rod, and then ascends into the discharge bin under the action of the auger. After that, the remedied soil is taken out from the discharge bin.
- the bottom of the sliding block 3 and the bottom of the slide channel 4 are fixedly connected to the two ends of the spring 16 , respectively.
- the tapered tube 17 is provided on the lower side of the crushing disc 8 , and the upper part of the tapered tube 17 is fixedly connected to the inner wall of the crushing device 2 .
- One end of a screw conveyor is arranged inside the discharge bin 31 .
- the other end of the screw conveyor penetrates the discharge bin 31 and the housing 1 , and then extends outward.
- the screw conveyor is connected to the power source.
- An opening and closing door is provided on the outer surface of the housing 1 directly opposite to the discharge bin 31 .
- a method for using the apparatus includes:
- step (1) the first motor 6 , the second motor, the third motor 27 , the fourth motor 32 , the anode electrode 33 and the cathode electrode 34 are activated, and then a dry contaminated soil is poured from the top of the crushing device 2 ; and step (2), the remedied soil is taken out from the discharge bin 31 .
- the soil after being poured is automatically treated, and then the remedied soil is directly taken out from the discharge bin, the apparatus is fully automatic and has high remediation efficiency.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
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- Processing Of Solid Wastes (AREA)
Abstract
Description
- This application is the national phase entry of International Application No. PCT/CN2020/080665, filed on Mar. 23, 2020, which is based upon and claims priority to Chinese Patent Application No. 201910674675.7, filed on Jul. 25, 2019, the entire contents of which are incorporated herein by reference.
- The present invention relates to the field of soil remediation, and more specifically, to an apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same.
- Soil contamination with heavy metals is typically caused by the accumulation of heavy metals that cannot be decomposed by soil microorganisms, resulting in an excessive level of heavy metal concentration in the soil. Such heavy metals at a high concentration are consequently toxic and at times fatal to animals and plants, which is very hazardous.
- A variety of heavy metals can contaminate soil. For example, in the electroplating industry, the discharged effluent contains a large amount of copper and nickel, resulting in an excessive concentration level of copper and nickel metals in the contaminated soil.
- At present, the heavy metal contaminated soils are typically redressed by techniques including physical remediation, chemical remediation, microbial remediation and phytoremediation. Microbial remediation and phytoremediation are energy-saving, environmentally friendly, and highly effective, but require a long remediation cycle.
- In view of the problem of poor remediation effect in the prior art, an objective of the present invention is to provide an apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same, which can achieve a good remediation effect while realizing fully-automatic remediation.
- To solve the above-mentioned problems, the present invention adopts the following technical solutions.
- An apparatus for remediation of a copper and nickel co-contaminated soil includes a housing. A crushing device is arranged at the upper part of the inside of the housing.
- A sliding block is connected to both sides of the middle of the outer surface of the crushing device, a slide channel matched with the sliding block is provided at the upper part of the inner wall of the housing, and the crushing device is slidably connected to the slide channel through the sliding block.
- A support rod is arranged at the upper part of the inside of the crushing device, and both ends of the support rod are fixedly connected to the inner wall of the crushing device. A first motor is fixedly connected to the middle of the upper surface of the support rod, and an output shaft of the first motor penetrates the support rod and is connected to a crushing rod.
- A crushing disc is arranged under the crushing rod, and the edge of the crushing disc is fixedly connected to the inner wall of the crushing device. The upper surface of the crushing disc is provided with a plurality of concentric crushing grooves, and the crushing groove is provided with a plurality of through holes. The through holes penetrate the crushing disc.
- The crushing rod includes a fixed rod and a roller, and the middle of the fixed rod is fixedly connected to the bottom end of the output shaft. The roller is sleeved on both sides of the fixed rod, and the outer surface of the roller is provided with crushing teeth matched with the crushing grooves.
- Gear teeth are provided on both sides of the bottom end of the outer surface of the crushing device, and the gear teeth mesh with a teeth-uncompleted gear. Two second motors are provided outside the housing, and rotating shafts of the two second motors are separately connected to the teeth-uncompleted gears.
- A stirring device is arranged below the crushing device, and the stirring device includes a spiral shaft. One end of each of a plurality of stirring rods is fixedly connected to an upper side of the spiral shaft, and a lower side of the spiral shaft is connected to a spiral blade. A small housing is connected to the middle of the lower surface of the housing, and the spiral blade is located inside the small housing and contacts the inner wall of the small housing.
- A feed cavity is formed inside the spiral shaft, and a horizontal rod is connected to a side of the bottom end of the spiral shaft. One end of the horizontal rod is perpendicularly connected to the spiral shaft, and the other end of the horizontal rod contacts the inner wall of the small housing. The lower surface of the horizontal rod contacts the inner bottom surface of the small housing. The horizontal rod is provided with a feed port, and the feed port communicates with the feed cavity. An auger is arranged inside the feed cavity, and the auger contacts the inner wall of the feed cavity.
- The top of the feed cavity is provided with a sealing plate, and the edge of the sealing plate is fixedly connected to the inner wall of the feed cavity. A third motor is arranged on the sealing plate. The third motor penetrates the sealing plate and is connected to the top end of the auger.
- A discharge port is provided at the upper part of the spiral shaft, and a rotating ring is arranged below the discharge port on the outer surface at the upper part of the spiral shaft. A rotating annular groove is provided on a side of the rotating ring adjacent to the spiral shaft. The top end of the spiral shaft is located inside a discharge bin, and a lower part of the discharge bin is located inside the rotating annular groove. A fourth motor is provided on the top end of the outer surface of the discharge bin. The fourth motor penetrates the top end of the discharge bin and is connected to the spiral shaft. The outer surface of the discharge bin is fixedly connected to the inner wall of the housing through a supporting column.
- An anode electrode and a cathode electrode are provided at both ends of the inner bottom of the housing, respectively. A sluice gate device is provided between the anode electrode and the stirring rod, and between the cathode electrode and the stirring rod. The sluice gate device includes two sluice gate plates and a sluice gate. One side of the two sluice gate plates is fixedly connected to the inner wall of the housing. A sluice gate passage is provided on opposite sides of the two sluice gate plates. The bottom end of the sluice gate is slidably arranged inside the sluice gate passage, and the top end of the sluice gate is fixedly connected to the lower surface of the crushing device.
- A sponge layer is connected between the bottoms of the opposite sides of the two sluice gate plates. An elastic spring and a T-shaped rod are arranged inside the sponge layer, and the T-shaped rod is located inside the elastic spring.
- The housing is provided with a tapered water outlet under the anode electrode and a tapered water outlet under the cathode electrode. The water outlet is provided with a truncated cone-shaped plug. The bottom end of the T-shaped rod penetrates the lower part of the housing and is connected to the lower surface of the plug through a connecting rod.
- A wastewater tank is arranged below the water outlet, and the wastewater tank is fixedly connected to the outer wall of the small housing.
- The first motor, the second motor, the third motor, the fourth motor, the anode electrode and the cathode electrode are all electrically connected to a power source.
- Preferably, the bottom of the sliding block and the bottom of the slide channel are fixedly connected to the two ends of a spring, respectively.
- Preferably, a tapered tube is provided on the lower side of the crushing disc, and the upper part of the tapered tube is fixedly connected to the inner wall of the crushing device.
- Preferably, one end of a screw conveyor is arranged inside the discharge bin. The other end of the screw conveyor penetrates the discharge bin and the housing, and then extends outward. The screw conveyor is connected to the power source.
- Preferably, an opening and closing door is provided on the outer surface of the housing directly opposite to the discharge bin.
- Preferably, a method for using the apparatus includes:
- step (1), activating the first motor, the second motor, the third motor, the fourth motor, the anode electrode and the cathode electrode, and then pouring a dry contaminated soil from the top of the crushing device; and
- step (2), taking out the remedied soil from the discharge bin.
- Compared with the prior art, the present invention has the following advantages. In the present invention, the soil contaminated by copper and nickel is first poured from the top of the crushing device, and then the soil is crushed thoroughly by the crushing device. The crushed soil facilitates the movement of copper and nickel metal ions therein toward the electrodes under the action of the anode electrode and the cathode electrode, thereby achieving optimal soil remediation.
-
FIG. 1 is a cross-sectional view of the structure of the present invention; -
FIG. 2 is an enlarged view of portion A encircled inFIG. 1 according to the present invention; -
FIG. 3 is a schematic view of the structure of the upper surface of the crushing disc according to the present invention; -
FIG. 4 is an enlarged view of portion B encircled inFIG. 1 according to the present invention; -
FIG. 5 is a cross-sectional view taken along line C-C inFIG. 1 according to the present invention; and -
FIG. 6 is an enlarged view of portion D encircled inFIG. 1 according to the present invention. - In the figures:
- 1, housing; 2, crushing device; 3, sliding block; 4, slide channel; 5, support rod; 6, first motor; 7, output shaft; 8, crushing disc; 9, crushing groove; 10, through hole; 11, fixed rod; 12, roller; 13, crushing teeth; 14, gear teeth; 15, teeth-uncompleted gear; 16, spring; 17, tapered tube; 18, spiral shaft; 19, stirring rod; 20, spiral blade; 21, small housing; 22, feed cavity; 23, horizontal rod; 24, feed port; 25, auger; 26, sealing plate; 27, third motor; 28, discharge port; 29, rotating ring; 30, rotating annular groove; 31, discharge bin; 32, fourth motor; 33, anode electrode; 34, cathode electrode; 35, sluice gate plate; 36, sluice gate; 37, sluice gate passage; 38, elastic spring; 39, T-shaped rod; 40, water outlet; 41, plug; 42, wastewater tank; 43, sponge layer.
- The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those having ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.
- Referring to
FIGS. 1-6 , an apparatus for remediation of a copper and nickel co-contaminated soil includes thehousing 1. The crushingdevice 2 is arranged at the upper part of the inside of thehousing 1. - The sliding
block 3 is connected to both sides of the middle of the outer surface of the crushingdevice 2. Theslide channel 4 matched with the sliding block is provided at the upper part of the inner wall of thehousing 1. The crushingdevice 2 is slidably connected to theslide channel 4 through the slidingblock 3. - The
support rod 5 is arranged at the upper part of the inside of the crushingdevice 2, and both ends of thesupport rod 5 are fixedly connected to the inner wall of the crushingdevice 2. Thefirst motor 6 is fixedly connected to the middle of the upper surface of thesupport rod 5. Theoutput shaft 7 of thefirst motor 6 penetrates thesupport rod 5 and is connected to a crushing rod. - The crushing
disc 8 is arranged under the crushing rod, and the edge of the crushingdisc 8 is fixedly connected to the inner wall of the crushingdevice 2. The upper surface of the crushingdisc 8 is provided with a plurality of concentriccrushing grooves 9. The crushinggroove 9 is provided with a plurality of throughholes 10. The through holes 10 penetrate the crushingdisc 8. - The crushing rod includes the fixed rod 11 and the
roller 12, and the middle of the fixed rod 11 is fixedly connected to the bottom end of theoutput shaft 7. Theroller 12 is sleeved on both sides of the fixed rod 11, and the outer surface of theroller 12 is provided with crushingteeth 13 matched with the crushinggrooves 9. - The
gear teeth 14 are provided on both sides of the bottom end of the outer surface of the crushingdevice 2, and thegear teeth 14 mesh with the teeth-uncompleted gear 15. Two second motors are provided outside thehousing 1, and rotating shafts of the two second motors are separately connected to the teeth-uncompleted gears 15. - A dry soil contaminated by copper and nickel is poured from the top of the crushing device, and falls on the crushing disc. Then, the roller is driven by the first motor to roll, such that the crushing teeth crush the agglomerated soil in the crushing grooves, and the crushed soil that meets a certain size discharges from the through holes to the bottom. In order to prevent the soil from clogging, the second motor drives the teeth-uncompleted gear to rotate, so that the teeth-uncompleted gears on both sides of the crushing devices mesh with the gear teeth to synchronously drive the crushing devices to ascend and then descend automatically, thereby vibrating the soil. The soil is revibrated under the action of the spring and thus falls more smoothly. In this way, the crushed soil falls between the sluice gate devices on both sides through the tapered tube.
- A stirring device is arranged below the crushing
device 2, and the stirring device includes thespiral shaft 18. One end of each of a plurality of stirringrods 19 is fixedly connected to the upper side of thespiral shaft 18. A lower side of thespiral shaft 18 is connected to thespiral blade 20. Thesmall housing 21 is connected to the middle of the lower surface of thehousing 1. Thespiral blade 20 is located inside thesmall housing 21 and contacts the inner wall of thesmall housing 21. - The
feed cavity 22 is formed inside thespiral shaft 18, and thehorizontal rod 23 is connected to a side of the bottom end of thespiral shaft 18. One end of thehorizontal rod 23 is perpendicularly connected to thespiral shaft 18, and the other end of thehorizontal rod 23 contacts the inner wall of thesmall housing 21. The lower surface of thehorizontal rod 23 contacts the inner bottom surface of thesmall housing 21. Thehorizontal rod 23 is provided with thefeed port 24, and thefeed port 24 communicates with thefeed cavity 22. Theauger 25 is arranged inside thefeed cavity 22, and theauger 25 contacts the inner wall of thefeed cavity 22. - The top of the
feed cavity 22 is provided with the sealingplate 26, and the edge of the sealingplate 26 is fixedly connected to the inner wall of thefeed cavity 22. Thethird motor 27 is arranged on the sealingplate 26. Thethird motor 27 penetrates the sealingplate 26 and is connected to the top end of theauger 25. - The
discharge port 28 is provided at the upper part of thespiral shaft 18. The rotatingring 29 is arranged below the discharge port on the outer surface at the upper part of thespiral shaft 18. The rotatingannular groove 30 is provided on a side of therotating ring 29 adjacent to thespiral shaft 18. The top end of thespiral shaft 18 is located inside thedischarge bin 31, and the lower part of thedischarge bin 31 is located inside the rotatingannular groove 30. Thefourth motor 32 is provided on the top end of the outer surface of thedischarge bin 31. Thefourth motor 32 penetrates the top end of thedischarge bin 31 and is connected to thespiral shaft 18. The outer surface of thedischarge bin 31 is fixedly connected to the inner wall of thehousing 1 through a supporting column. - The
anode electrode 33 and thecathode electrode 34 are provided at both ends of the inner bottom of thehousing 1, respectively. A sluice gate device is provided between theanode electrode 33 and the stirringrod 19, and between thecathode electrode 34 and the stirringrod 19. The sluice gate device includes twosluice gate plates 35 and thesluice gate 36. One side of the twosluice gate plates 35 is fixedly connected to the inner wall of thehousing 1. Thesluice gate passage 37 is provided on opposite sides of the two sluice gate plates. The bottom end of thesluice gate 36 is slidably arranged inside thesluice gate passage 37, and the top end of thesluice gate 36 is fixedly connected to the lower surface of the crushingdevice 2. - The
sponge layer 43 is connected between the bottoms of the opposite sides of the twosluice gate plates 35. Theelastic spring 38 and the T-shapedrod 39 are arranged inside thesponge layer 43, and the T-shapedrod 39 is located inside theelastic spring 38. - The
housing 1 is provided with the taperedwater outlet 40 under theanode electrode 33 and the taperedwater outlet 40 under thecathode electrode 34. Thewater outlet 40 is provided with the truncated cone-shapedplug 41. The bottom end of the T-shapedrod 39 penetrates the lower part of thehousing 1 and is connected to the lower surface of theplug 41 through a connecting rod. - The
wastewater tank 42 is arranged below thewater outlet 40, and thewastewater tank 42 is fixedly connected to the outer wall of thesmall housing 21. - The
first motor 6, the second motor, thethird motor 27, thefourth motor 32, theanode electrode 33 and thecathode electrode 34 are all electrically connected to a power source. - The crushed soil is quickly mixed with an aqueous solution under the action of the stirring rod. The liquid level of the aqueous solution is higher than the stirring rod but lower than the bottom of the discharge bin. After being quickly mixed with the aqueous solution, the copper and nickel ions in the soil are quickly attracted by the cathode electrode or the anode electrode, so that all the heavy metal ions are accumulated around the cathode electrode or the anode electrode. After that, when the crushing device is lowered, the sluice gate is driven to close the sluice gate device (which may be incompletely closed, as long as the water discharge speed at the water outlet is faster than the water inlet speed). Subsequently, the T-shaped rod is squeezed to drive the plug to descend, so that the water around the cathode electrode or the anode electrode enters the wastewater tank. In this way, part of the aqueous solution with a high concentration of heavy metals in the aqueous solution is removed, which overcomes the problem that the heavy metal ions are inclined to run away from the cathode electrode or the anode electrode due to the difference in concentration. By means of the present invention, heavy metal ions are quickly removed, and the efficiency of attracting the heavy metal ions by the anode electrode and the cathode electrode is significantly improved, thereby improving the efficiency of soil remediation. In addition, the soil enters below the stirring rod, then enters the feed cavity through the horizontal rod, and then ascends into the discharge bin under the action of the auger. After that, the remedied soil is taken out from the discharge bin.
- The bottom of the sliding
block 3 and the bottom of theslide channel 4 are fixedly connected to the two ends of thespring 16, respectively. - The tapered
tube 17 is provided on the lower side of the crushingdisc 8, and the upper part of the taperedtube 17 is fixedly connected to the inner wall of the crushingdevice 2. - One end of a screw conveyor is arranged inside the
discharge bin 31. The other end of the screw conveyor penetrates thedischarge bin 31 and thehousing 1, and then extends outward. The screw conveyor is connected to the power source. - An opening and closing door is provided on the outer surface of the
housing 1 directly opposite to thedischarge bin 31. - A method for using the apparatus includes:
- step (1), the
first motor 6, the second motor, thethird motor 27, thefourth motor 32, theanode electrode 33 and thecathode electrode 34 are activated, and then a dry contaminated soil is poured from the top of the crushingdevice 2; and step (2), the remedied soil is taken out from thedischarge bin 31. - In the present invention, the soil after being poured is automatically treated, and then the remedied soil is directly taken out from the discharge bin, the apparatus is fully automatic and has high remediation efficiency.
- The above description is only the preferred specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto. Equivalent replacements or changes made by any person familiar with the technical field in the technical scope disclosed by the present invention according to the technical solution of the present invention and its improvement concept shall fall within the scope of protection of the present invention.
Claims (10)
Applications Claiming Priority (3)
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CN201910674675.7 | 2019-07-25 | ||
CN201910674675.7A CN110369466B (en) | 2019-07-25 | 2019-07-25 | Remediation device for heavy metal copper-nickel mixed contaminated soil and application method thereof |
PCT/CN2020/080665 WO2021012693A1 (en) | 2019-07-25 | 2020-03-23 | Remediation apparatus for soil having mixed copper and nickel heavy metal pollution and use method thereof |
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US20210187572A1 true US20210187572A1 (en) | 2021-06-24 |
US11052404B1 US11052404B1 (en) | 2021-07-06 |
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US17/256,177 Active US11052404B1 (en) | 2019-07-25 | 2020-03-23 | Apparatus for remediation of a copper and nickel co-contaminated soil and a method for using the same |
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US (1) | US11052404B1 (en) |
CN (1) | CN110369466B (en) |
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WO2021012693A1 (en) | 2021-01-28 |
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