CN116944229A - Heavy metal contaminated soil prosthetic devices - Google Patents
Heavy metal contaminated soil prosthetic devices Download PDFInfo
- Publication number
- CN116944229A CN116944229A CN202311083049.3A CN202311083049A CN116944229A CN 116944229 A CN116944229 A CN 116944229A CN 202311083049 A CN202311083049 A CN 202311083049A CN 116944229 A CN116944229 A CN 116944229A
- Authority
- CN
- China
- Prior art keywords
- transfer box
- wall
- fixedly connected
- inclined plate
- heavy metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 57
- 229910001385 heavy metal Inorganic materials 0.000 title claims description 27
- 238000012546 transfer Methods 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 11
- 238000005067 remediation Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 20
- 238000002156 mixing Methods 0.000 abstract description 13
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010009 beating Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/54—Cleaning with beating devices
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a transfer box, two metering scales and a first spiral feeder, which comprises a transfer box, a first spiral feeder and a second spiral feeder; the first spiral feeder extends into two feed inlets of the transfer box; a screen drum is rotatably arranged on the inner side wall of the transfer box; the feed inlet at the upper part is communicated with the inner cavity of the screen cylinder; a first inclined plate is fixedly connected in the inner cavity of the transfer box; the first spiral feeder below is positioned above the lower end of the first inclined plate; the inner chamber of transfer case installs the removal that is used for beating the screen drum outer wall and beats the subassembly. The invention has the advantages that: the passivating agent and the polluted soil can be primarily mixed, preparation is made for uniformly mixing the follow-up polluted soil and the passivating agent in the stirrer, the mixing uniformity degree can be effectively improved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of soil restoration devices, in particular to a heavy metal polluted soil restoration device.
Background
The heavy metal pollutants in the soil mainly comprise mercury, cadmium, chromium, arsenic, nickel, iron, lead, copper, manganese, zinc and the like, cannot be decomposed by soil microorganisms, and are easy to accumulate. Even some heavy metal elements can be converted into methyl compounds with greater toxicity in soil, and part of the heavy metal elements can be accumulated in human bodies through food chains, so that the human health is seriously endangered. The approaches for treating the heavy metal contaminated soil mainly comprise two approaches: firstly, changing the existence form of heavy metals in soil, fixing the heavy metals, and reducing the mobility and bioavailability of the heavy metals in the environment; and secondly, removing heavy metals from the soil. The first method is simply called heavy metal soil passivation technology, and the prepared passivating agent and the polluted soil are uniformly mixed and then maintained for a period of time, so that the method is low in cost, can be applied on a large scale and has wider practicability. Research shows that the uniform mixing degree of the passivating agent and the polluted soil is one of key factors for determining the solidification stabilizing effect. The existing heavy metal contaminated soil restoration device is characterized in that the weighed passivating agent and the contaminated soil are respectively added into the stirrer, and are mixed by simply stirring by the stirrer, so that the passivating agent and the contaminated soil are difficult to uniformly mix, and the working efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing the heavy metal contaminated soil restoration device, which can realize preliminary mixing of the passivating agent and the contaminated soil, prepare for uniform mixing of the subsequent contaminated soil and the passivating agent in a stirrer, effectively improve the mixing uniformity and improve the working efficiency.
In order to solve the technical problems, the technical scheme of the invention is that the heavy metal contaminated soil remediation device comprises a transfer box and two metering scales; an upper feed inlet and a lower feed inlet are formed in the side wall of the transfer box; the outlet of each metering scale is communicated with a first spiral conveyer; one end of the first spiral feeder is opened and extends into two feed inlets of the transfer box; a screen drum is rotatably arranged on the inner side wall of the transfer box; the upper feed inlet is communicated with the inner cavity of the screen cylinder; the inner cavity of the transfer box is fixedly connected with a first inclined plate below the screen cylinder; a distance is reserved between the lower end of the first inclined plate and the inner wall of the transfer box; one end of the first spiral feeder positioned below is positioned above the lower end of the first inclined plate; the inner cavity of the transfer box is provided with a movable knocking component for knocking the outer wall of the screen drum;
the movable knocking assembly comprises a spline shaft rotatably arranged in the inner cavity of the transfer box, a plurality of spline sleeves slidably arranged outside the spline shaft, a plurality of telescopic knocking hammers arranged on the outer wall of the spline sleeves, a screw rod rotatably arranged in the inner cavity of the transfer box and a plurality of movable plates threadedly arranged on the screw rod; the screw rod is parallel to the spline shaft; the outer wall of the spline housing is rotatably arranged on the moving plate; one end of the screw rod is connected with a first motor arranged on the outer wall of the transfer box; one end of the spline shaft is connected with a second motor arranged on the outer wall of the transfer box; one end of the spline shaft positioned in the transfer box is fixedly connected with a gear; an outer gear ring meshed with the gear is fixedly connected to the outer wall of one end of the screen cylinder.
Further, the telescopic knocking hammer comprises an outer tube, an inner rod which is slidably arranged in the outer tube and a knocking rod which is fixedly connected with one end of the inner rod; a chute is formed in the inner wall of the outer tube; the outer wall of the inner rod is fixedly connected with a sliding block which is in sliding connection with the sliding groove; the bottom of the inner cavity of the outer tube is fixedly connected with a first spring; the other end of the first spring is fixedly connected with a first buffer plate; two ends of the sliding groove are fixedly connected with second springs; the other end of the second spring is fixedly connected with a second buffer plate.
Further, the outer wall of the spline housing is fixedly connected with a supporting rod; one end of the supporting rod is fixedly connected with a supporting ring; the supporting ring is connected with the outer wall of the inner rod in a sliding way.
Further, the discharging end of the first spiral conveyer positioned below is fixedly connected with a downward-inclined discharging plate.
Further, an outlet of the transfer box is communicated with a second spiral conveyer, and an outlet of the second spiral conveyer is communicated with a feed inlet of the stirrer; grooves are formed in the inner walls of the two sides of the transfer box; the bearing is arranged in the groove, and the outer ring of the bearing is in interference fit with the wall of the groove; the two ends of the screen cylinder are in interference fit with the inner ring of the bearing; a gap is reserved between the inner walls of the two ends of the screen cylinder and the walls of the groove; a first sealing ring for shielding the gap and a second sealing ring for shielding the bearing are arranged in the groove; and a hole check ring used for limiting the axial movement of the second sealing ring is arranged in the groove, and a shaft check ring used for limiting the axial movement of the first sealing ring is also arranged in the groove.
Further, a second inclined plate is fixedly connected in the inner cavity of the transfer box and is positioned above the first inclined plate, the inclined direction of the second inclined plate is opposite to that of the first inclined plate, and a distance is reserved between the lower end of the second inclined plate and the inner wall of the transfer box.
Further, a vertical plate is fixedly connected to the lower end face of the lower end of the second inclined plate; comb teeth are arranged at the lower ends of the vertical plates.
Further, a water spraying mechanism is arranged above the second inclined plate; the water spraying mechanism comprises a water pipe penetrating through the side wall of the transfer box; a nozzle facing the second inclined plate is arranged on the water pipe; and the water pipe is communicated with a flowmeter.
Further, the metering scale comprises a weighing box, a fixed mount fixedly mounted, a side plate fixedly connected to the outer wall of the weighing box and a plurality of weight sensors mounted between the side plate and the fixed mount.
Further, the transfer box is provided with an access door which can be opened and closed on the side wall of one end of the screen cylinder.
The invention has the beneficial effects that:
(1) The polluted soil and the passivating agent are respectively conveyed to two feed inlets of the transfer box through the first spiral feeder after being weighed by the weighing scale, the polluted soil enters the screen drum for screening, the soil meeting the requirements falls on the first inclined plate through meshes of the screen drum and slides down from the first inclined plate, and the passivating agent is sprayed on the polluted soil in the sliding process, so that preliminary mixing of the passivating agent and the polluted soil is realized, preparation is made for uniformly mixing the follow-up polluted soil and the passivating agent in the stirrer, the uniform mixing degree can be effectively improved, and the working efficiency is improved.
(2) The second motor drives the spline shaft to rotate, and the spline shaft drives the spline housing to rotate, so that the spline housing moves while rotating. The spline housing rotates to drive the telescopic knocking hammer on the outer wall to continuously knock the outer wall of the screen cylinder, so that the polluted soil blocked in the meshes is shaken off, and the screen cylinder is prevented from being blocked. The first motor drives the screw rod to rotate, the screw rod drives the moving plate and the spline housing to move, the outer wall of the screen drum can be knocked in all directions, no dead zone is knocked, the moving speed and the knocking frequency of the knocking zone can be independently controlled, the operation is flexible, and the anti-blocking effect is good.
Drawings
FIG. 1 is a schematic view of the overall internal structure of an embodiment;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A;
FIG. 3 is a partial cross-sectional view of the mobile rapping assembly of FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is a partial cross-sectional view of the structure of FIG. 4;
FIG. 6 is an enlarged view of the structure at C in FIG. 1;
fig. 7 is an enlarged view of the structure of the scale of fig. 1.
In the figure, 1-meter, 101-weighing box, 102-fixing frame, 103-side plate, 104-weight sensor, 2-first screw feeder, 3-transfer box, 4-bearing, 5-second screw feeder, 6-screen drum, 7-moving knocking component, 701-spline shaft, 702-spline housing, 703-screw rod, 704-moving plate, 705-first motor, 706-second motor, 707-telescopic knocking hammer, 7071-outer tube, 7072-inner rod, 7073-knocking rod, 7074-slide block, 7075-slide groove, 7076-first spring, 7077-first buffer plate, 7078-second buffer plate, 7079-second spring, 708-supporting rod, 709-supporting ring, 8-gear, 9-outer gear ring, 10-first inclined plate, 11-second inclined plate, 12-vertical plate, 13-comb teeth, 14-water tube, 15-nozzle, 16-flowmeter, 17-access door, 18-discharge plate, 19-groove, 20-first shaft, 21-first sealing ring, 23-sealing ring, sealing ring.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The heavy metal contaminated soil restoration device, as shown in figures 1-7, comprises a transfer box 3 and two weighing scales 1; an upper feed inlet and a lower feed inlet are formed in the side wall of the transfer box 3; the outlet of each metering scale 1 is communicated with a first spiral feeder 2; one end of the first spiral feeder 2 is opened and extends into two feed inlets of the transfer box 3; a screen drum 6 is rotatably arranged on the inner side wall of the transfer box 3; the upper feed inlet is communicated with the inner cavity of the screen cylinder 6; the inner cavity of the transfer box 3 is fixedly connected with a first inclined plate 10 below the screen cylinder 6; a distance is reserved between the lower end of the first inclined plate 10 and the inner wall of the transfer box 3; one end of the first screw feeder 2 located below is located above the lower end of the first inclined plate 10; the inner cavity of the transfer box 3 is provided with a movable knocking component 7 for knocking the outer wall of the screen drum 6;
the polluted soil and the passivating agent are respectively conveyed to two feed inlets of the transfer box 3 through the first spiral feeder 2 after being weighed by the weighing scale 1, the polluted soil enters the screen drum 6 for screening, the soil meeting the requirements falls on the first inclined plate 10 through meshes of the screen drum 6 and slides downwards from the first inclined plate 10, and the passivating agent is sprayed on the polluted soil in the sliding process, so that the passivating agent and the polluted soil are primarily mixed, preparation is made for uniformly mixing the follow-up polluted soil and the passivating agent in the stirrer, the mixing uniformity degree can be effectively improved, and the working efficiency is improved.
The movable knocking assembly 7 comprises a spline shaft 701 rotatably arranged in the inner cavity of the transfer box 3, a plurality of spline sleeves 702 slidably arranged outside the spline shaft 701, a plurality of telescopic knocking hammers 707 arranged on the outer wall of the spline sleeves 702, a screw rod 703 rotatably arranged in the inner cavity of the transfer box 3, and a plurality of movable plates 704 threadedly arranged on the screw rod 703; the screw 703 is parallel to the spline shaft 701; the outer wall of spline housing 702 is rotatably mounted on a moving plate 704; one end of a screw rod 703 is connected with a first motor 705 arranged on the outer wall of the transfer box 3; one end of the spline shaft 701 is connected with a second motor 706 installed on the outer wall of the transfer box 3; one end of the spline shaft 701 positioned in the transfer box 3 is fixedly connected with a gear 8; an outer gear ring 9 meshed with the gear 8 is fixedly connected to the outer wall of one end of the screen cylinder 6.
The second motor 706 drives the spline shaft 701 to rotate, the spline shaft 701 drives the spline housing 702 to rotate, and the telescopic knocking hammer 707 on the outer wall of the spline housing 702 is driven to continuously knock the outer wall of the screen cylinder 6, so that the polluted soil blocked in the meshes is shaken off, and the screen cylinder 6 is prevented from being blocked. The first motor 705 drives the lead screw 703 to rotate, and the lead screw 703 drives the movable plate 704 and the spline housing 702 to move, so that the outer wall of the screen drum 6 can be knocked in all directions, no dead zone is knocked, the moving speed and the knocking frequency of the knocking zone can be independently controlled, the operation is flexible, and the anti-blocking effect is good.
Specifically, the telescopic striking hammer 707 includes an outer tube 7071, an inner rod 7072 slidably mounted within the outer tube 7071, and a striking rod 7073 fixedly coupled to one end of the inner rod 7072; a sliding groove 7075 is formed in the inner wall of the outer tube 7071; the outer wall of the inner rod 7072 is fixedly connected with a sliding block 7074 which is in sliding connection with a sliding groove 7075; a first spring 7076 is fixedly connected to the bottom of the inner cavity of the outer tube 7071; the other end of the first spring 7076 is fixedly connected with a first buffer plate 7077; second springs 7079 are fixedly connected to two ends of the sliding groove 7075; the other ends of the second springs 7079 are fixedly connected with a second buffer plate 7078. When the knocking rod 7073 rotates to a horizontal position facing one side of the screen cylinder 6 along with the spline housing 702, the knocking rod 7073 drives the inner rod 7072 to slide in the outer tube 7071 under the action of self gravity along with the continued rotation of the spline housing 702, and the knocking rod 7073 knocks on the outer wall of the screen cylinder 6. As spline housing 702 continues to rotate, telescoping hammer 707 is driven to rise and then the rapping continues.
Specifically, the outer wall of the spline housing 702 is fixedly connected with a supporting rod 708; one end of the supporting rod 708 is fixedly connected with a supporting ring 709; the grommet 709 is slidably coupled to the outer wall of the inner rod 7072. The brace 708 can function to support the inner rod 7072.
Specifically, the discharge end of the first screw feeder 2 located below is fixedly connected with a downward inclined discharge plate 18.
Specifically, the outlet of the transfer box 3 is communicated with a second spiral feeder 5, and the outlet of the second spiral feeder 5 is communicated with the feed inlet of the stirrer; grooves 19 are formed in the inner walls of the two sides of the transfer box 3; the bearing 4 is arranged in the groove 19, and the outer ring of the bearing is in interference fit with the groove wall of the groove 19; both ends of the screen cylinder 6 are in interference fit with the inner ring of the bearing 4; a gap is reserved between the inner walls of the two ends of the screen cylinder 6 and the wall of the groove 19; a first sealing ring 21 for shielding the gap and a second sealing ring 20 for shielding the bearing 4 are arranged in the groove 19; a hole retainer 22 for restricting axial movement of the second seal ring 20 and a shaft retainer 23 for restricting axial movement of the first seal ring 21 are mounted in the groove 19.
Specifically, the inner cavity of the transfer box 3 is fixedly connected with a second inclined plate 11, the second inclined plate 11 is located above the first inclined plate 10, the inclined direction of the second inclined plate is opposite to that of the first inclined plate 10, and a distance is reserved between the lower end of the second inclined plate and the inner wall of the transfer box 3.
Specifically, the lower end face of the lower end of the second inclined plate 11 is fixedly connected with a vertical plate 12; comb teeth 13 are arranged at the lower end of the vertical plate 12. The comb teeth 13 are capable of flattening the contaminated soil falling on the first inclined plate 10.
Specifically, a water spraying mechanism is arranged above the second inclined plate 11; the water spraying mechanism comprises a water pipe 14 penetrating through the side wall of the transfer box 3; the water pipe 14 is provided with a spray head 15 facing the second inclined plate 11; the water pipe 14 is connected to a flowmeter 16. In the passivation and restoration process of the heavy metal contaminated soil, water is added for stirring, and the uniform addition of water can be realized in the transfer box.
Specifically, the weighing scale 1 comprises a weighing box 101, a fixed mount 102 fixedly mounted, a side plate 103 fixedly connected to the outer wall of the weighing box 101, and a plurality of weight sensors 104 mounted between the side plate 103 and the mount 102.
Specifically, the side wall of the transfer box 3 at one end of the screen cylinder 6 is provided with an openable access door 17. The access door 17 may be opened when access is required and when it is required to clean large pieces of soil inside the screen cylinder 6 that cannot fall.
Working principle of the embodiment:
during operation, the polluted soil and the prepared passivating agent are respectively weighed by the metering scale 1 and then conveyed into two feed inlets of the transfer box 3 through the first spiral conveyor 2. Contaminated soil enters the screen drum 6 for screening, and the first motor 705 and the second motor 706 are turned on. The second motor 706 drives the spline shaft 701 to rotate, the spline shaft 701 drives the spline housing 702 to rotate, and the telescopic knocking hammer 707 on the outer wall of the spline housing 702 is driven to continuously knock the outer wall of the screen cylinder 6, so that the polluted soil blocked in the meshes is shaken off, and the screen cylinder 6 is prevented from being blocked. The first motor 705 drives the lead screw 703 to rotate, and the lead screw 703 drives the movable plate 704 and the spline housing 702 to move, so that the outer wall of the screen drum 6 can be knocked in all directions, no dead zone is knocked, the moving speed and the knocking frequency of the knocking zone can be independently controlled, the operation is flexible, and the anti-blocking effect is good.
The soil meeting the requirements falls on the second inclined plate 11 through the mesh of the screen drum 6, external water is sprayed on the polluted soil through the water pipe 14 and the spray head 15, then slides on the first inclined plate 10 and slides downwards from the first inclined plate 10, and the passivating agent falls on the discharging plate 18 through the first spiral feeder 2 in the sliding process, so that the passivating agent and the polluted soil are primarily mixed, preparation is made for uniformly mixing the follow-up polluted soil and the passivating agent in the stirrer, the mixing uniformity degree can be effectively improved, and the working efficiency is improved.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (10)
1. The utility model provides a heavy metal contaminated soil prosthetic devices which characterized in that: comprises a transfer box (3) and two metering scales (1); an upper feeding port and a lower feeding port are formed in the side wall of the transfer box (3); the outlet of each metering scale (1) is communicated with a first spiral feeder (2); one end of the first spiral feeder (2) is opened and extends into two feeding holes of the transfer box (3); a screen drum (6) is rotatably arranged on the inner side wall of the transfer box (3); the upper feed inlet is communicated with the inner cavity of the screen cylinder (6); the inner cavity of the transfer box (3) is fixedly connected with a first inclined plate (10) below the screen cylinder (6); a distance is reserved between the lower end of the first inclined plate (10) and the inner wall of the transfer box (3); one end of the first spiral feeder (2) positioned below is positioned above the lower end of the first inclined plate (10); the inner cavity of the transfer box (3) is provided with a movable knocking component (7) for knocking the outer wall of the screen drum (6);
the movable knocking assembly (7) comprises a spline shaft (701) rotatably arranged in the inner cavity of the transfer box (3), a plurality of spline sleeves (702) slidably arranged outside the spline shaft (701), a plurality of telescopic knocking hammers (707) arranged on the outer wall of the spline sleeves (702), a screw rod (703) rotatably arranged in the inner cavity of the transfer box (3) and a plurality of movable plates (704) threadedly arranged on the screw rod (703); the screw rod (703) is parallel to the spline shaft (701); the outer wall of the spline housing (702) is rotatably arranged on the moving plate (704); one end of the screw rod (703) is connected with a first motor (705) arranged on the outer wall of the transfer box (3); one end of the spline shaft (701) is connected with a second motor (706) arranged on the outer wall of the transfer box (3); one end of the spline shaft (701) positioned in the transfer box (3) is fixedly connected with a gear (8); an outer gear ring (9) meshed with the gear (8) is fixedly connected to the outer wall of one end of the screen cylinder (6).
2. The heavy metal contaminated soil remediation device of claim 1 wherein: the telescopic knocking hammer (707) comprises an outer pipe (7071), an inner rod (7072) which is slidably arranged in the outer pipe (7071) and a knocking rod (7073) fixedly connected to one end of the inner rod (7072); a sliding groove (7075) is formed in the inner wall of the outer tube (7071); the outer wall of the inner rod (7072) is fixedly connected with a sliding block (7074) which is in sliding connection with the sliding groove (7075); a first spring (7076) is fixedly connected to the bottom of the inner cavity of the outer tube (7071); the other end of the first spring (7076) is fixedly connected with a first buffer plate (7077); two ends of the sliding groove (7075) are fixedly connected with second springs (7079); the other ends of the second springs (7079) are fixedly connected with a second buffer plate (7078).
3. The heavy metal contaminated soil remediation device of claim 2 wherein: a supporting rod (708) is fixedly connected to the outer wall of the spline housing (702); one end of the supporting rod (708) is fixedly connected with a supporting ring (709); the supporting ring (709) is connected with the outer wall of the inner rod (7072) in a sliding way.
4. The heavy metal contaminated soil remediation device of claim 1 wherein: the discharge end of the first spiral feeder (2) positioned below is fixedly connected with a downward-inclined discharge plate (18).
5. The heavy metal contaminated soil remediation device of claim 1 wherein: the outlet of the transfer box (3) is communicated with a second spiral conveyer (5), and the outlet of the second spiral conveyer (5) is communicated with the feed inlet of the stirrer; grooves (19) are formed in the inner walls of the two sides of the transfer box (3); the bearing (4) is arranged in the groove (19), and the outer ring of the bearing is in interference fit with the groove wall of the groove (19); the two ends of the screen cylinder (6) are in interference fit with the inner ring of the bearing (4); a gap is reserved between the inner walls of the two ends of the screen cylinder (6) and the wall of the groove (19); a first sealing ring (21) for shielding the gap and a second sealing ring (20) for shielding the bearing (4) are arranged in the groove (19); a hole check ring (22) for limiting the axial movement of the second sealing ring (20) is arranged in the groove (19), and a shaft check ring (23) for limiting the axial movement of the first sealing ring (21) is also arranged in the groove.
6. The heavy metal contaminated soil remediation device of claim 1 wherein: the inner cavity of the transfer box (3) is fixedly connected with a second inclined plate (11), the second inclined plate (11) is positioned above the first inclined plate (10), the inclined direction of the second inclined plate is opposite to that of the first inclined plate (10), and a distance is reserved between the lower end of the second inclined plate and the inner wall of the transfer box (3).
7. The heavy metal contaminated soil remediation device of claim 6 wherein: a vertical plate (12) is fixedly connected to the lower end face of the lower end of the second inclined plate (11); comb teeth (13) are arranged at the lower ends of the vertical plates (12).
8. The heavy metal contaminated soil remediation device of claim 7 wherein: a water spraying mechanism is arranged above the second inclined plate (11); the water spraying mechanism comprises a water pipe (14) penetrating through the side wall of the transfer box (3); a nozzle (15) facing the second inclined plate (11) is arranged on the water pipe (14); the water pipe (14) is communicated with a flowmeter (16).
9. The heavy metal contaminated soil remediation device of claim 1 wherein: the metering scale (1) comprises a weighing box (101), a fixed mount (102) fixedly mounted, a side plate (103) fixedly connected to the outer wall of the weighing box (101) and a plurality of weight sensors (104) mounted between the side plate (103) and the fixed mount (102).
10. The heavy metal contaminated soil remediation device of claim 1 wherein: the transfer box (3) is provided with an openable access door (17) on the side wall of one end of the screen cylinder (6).
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| CN202311083049.3A CN116944229B (en) | 2023-08-28 | 2023-08-28 | Heavy metal contaminated soil prosthetic devices |
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| CN202311083049.3A CN116944229B (en) | 2023-08-28 | 2023-08-28 | Heavy metal contaminated soil prosthetic devices |
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| CN116944229B (en) | 2024-05-28 |
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