CN110681686B - Soil remediation full-treatment device and using method thereof - Google Patents

Soil remediation full-treatment device and using method thereof Download PDF

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Publication number
CN110681686B
CN110681686B CN201911063529.7A CN201911063529A CN110681686B CN 110681686 B CN110681686 B CN 110681686B CN 201911063529 A CN201911063529 A CN 201911063529A CN 110681686 B CN110681686 B CN 110681686B
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box
soil
treatment
tank
leaching
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CN201911063529.7A
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CN110681686A (en
Inventor
彭秋霞
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Chongzuo Difulai Biotechnology Co., Ltd
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Chongzuo Difulai Biotechnology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/02Extraction using liquids, e.g. washing, leaching, flotation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09CRECLAMATION OF CONTAMINATED SOIL
    • B09C1/00Reclamation of contaminated soil
    • B09C1/06Reclamation of contaminated soil thermally

Abstract

The invention discloses a soil remediation full-treatment device, which can effectively separate solid pollutants, collect ferromagnetic substances, rinse and restore soil and belongs to the field of soil remediation; comprises a pretreatment box, a screening box, a retreatment box, a leaching precipitation box and a liquid collection box which are sequentially distributed from top to bottom; the pretreatment box is provided with a feed inlet and a plurality of stirring rods controlled by a driving motor, and the outer end parts of the stirring rods are connected with a magnetic adsorption part; the screening box is a vibration type box body controlled by an alternating motor, a plurality of layers of filter screens are arranged in the screening box, and an inclined hopper opening for soil to slide out is arranged at the bottom of the screening box; the top of the reprocessing box is provided with a rolling wheel which is controlled by a lifting mechanism and a reciprocating mechanism to move up and down and left and right; the side wall of the leaching and precipitating tank is provided with a plurality of leacheate spraying openings and discharging openings, the bottom of the leaching and precipitating tank is inclined at a certain angle, the lower end of the leaching and precipitating tank is provided with a filtering opening, and the filtering opening is connected with the liquid collecting tank; the bottoms of the pretreatment box and the reprocessing box are both openable and controlled by an electromagnetic valve.

Description

Soil remediation full-treatment device and using method thereof
Technical Field
The invention relates to the technical field of soil remediation, in particular to a device capable of separating solid garbage, recovering ferromagnetic substances and comprehensively remedying soil pollutants and a using method thereof.
Background
Soil remediation is a technical measure to restore normal function to contaminated soil. In the soil remediation industry, the existing soil remediation technologies reach more than one hundred.
The existing repair technology is roughly as follows: thermodynamic remediation, thermal desorption remediation, incineration remediation, land landfill remediation, chemical leaching remediation, composting remediation, osmotic reaction remediation and the like. Regardless of the remediation mode, people pay attention to organic matters, chemical pollution and heavy metals in soil during the soil remediation process, but pay less attention to common daily pollutants (such as plastic bags, batteries, white daily garbage, waste paper and the like), and cause cyclic pollution after long-term accumulation, and some recyclable pollutants cause resource waste. Some pretreatment equipment exists in the market, the common pollutants are treated in the soil remediation process, the equipment is often used for manually picking up the leakage, or the pollutants are directly broken by machinery and then integrally treated with the soil, the method not only consumes manpower, but also increases the difficulty of soil remediation in the later period and increases the remediation time.
In addition, in the soil remediation process, there are some resource waste phenomena, for example, most of the soil has some waste ferromagnetic substances (iron sheet and iron sheet), and in the soil remediation process, especially in the chemical leaching remediation process, these substances are often lost, which results in resource waste.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a soil remediation full-treatment device which can effectively recover ferromagnetic substances in soil, separate solid pollution garbage and comprehensively remediate soil.
In order to achieve the purpose, the invention adopts the following technical scheme:
a soil restoration full-treatment device comprises a pretreatment box, a screening box, a retreatment box, a leaching precipitation box and a liquid collection box which are sequentially distributed from top to bottom; the top of the pretreatment box is provided with a soil feeding hole, the top and the side wall of the pretreatment box are provided with a plurality of stirring rods which are controlled by a driving motor to rotate, and the outer end parts of the stirring rods are fixedly connected with magnetic adsorption parts; the screening box is a vibration type box body with vibration frequency controlled by an alternating motor, a plurality of layers of filter screens are arranged in the screening box, an inclined hopper opening for soil to slide out is arranged at the bottom of the screening box, and the inclined hopper opening is elastically connected with an inlet of the reprocessing box; the top of the reprocessing box is provided with a rolling wheel which is controlled by a lifting mechanism and a reciprocating mechanism to move up and down and left and right; the side wall of the leaching and precipitating tank is provided with a plurality of leacheate spraying openings and discharging openings, the bottom of the leaching and precipitating tank is inclined at a certain angle, the lower end of the leaching and precipitating tank is provided with a liquid filtering opening, and the liquid filtering opening is connected with a liquid collecting tank; the bottoms of the pretreatment box and the reprocessing box are both openable and controlled by an electromagnetic valve.
Preferably: the magnetic adsorption part is detachably and fixedly connected with the stirring rod.
Preferably: the magnetic adsorption part is a cone with a large end face outside, and the middle part of the large end face is inwards sunken to form a certain radian.
Preferably: the side walls of the pretreatment box and the screening box are provided with open windows.
Preferably: each box body is provided with an air outlet and is connected with a gas treatment device through an air pump.
Preferably: the liquid collecting box is connected with the liquid processing device through a draining pump.
Preferably: an electromagnetic heating system is arranged in the rolling wheel.
In addition, the invention also provides a using method of the soil remediation full-treatment device, which comprises the following steps:
s1, adding soil to be restored into a pretreatment box from a soil feeding hole, and simultaneously starting a stirring rod;
s1-1, starting the stirring rod from high speed to low speed, wherein the high speed rotation stirring is used for breaking the coagulated soil and reducing the particle size of the agglomerated soil, and the low speed stirring is used for making the magnetic adsorption part adsorb ferromagnetic pollutants in the soil;
s2, controlling the bottom of the pretreatment box to be opened by an electromagnetic valve, dropping the soil which is stirred and separated from ferromagnetic pollutants into a screening box, vibrating the box body by controlling an alternating motor, enabling the soil to enter the reprocessing box through a plurality of layers of filter screens and then through an inclined hopper opening, and enabling large solid or flexible or bagged or strip-shaped pollutants in the soil to stay on the filter screens;
s3, controlling the roller pressing wheel to be lowered below the soil height through a lifting mechanism, controlling the roller pressing wheel to move left and right through a reciprocating mechanism, covering the soil surface, greatly reducing and refining the soil granularity on the basis, and quickly discharging volatile gas and low-melting-point pollutants which are easy to degrade at high temperature while refining the soil through the roller pressing wheel heated by an electromagnetic heating system;
s4, controlling the refined soil in the retreatment box to fall into a leaching precipitation box through an electromagnetic valve, leaching residual pollutants in the soil in the leaching precipitation box through chemical liquid or water sprayed from a spraying opening, and precipitating after leaching;
s5, the precipitated liquid flows into a liquid collecting box through a filter opening, the residual soil is the soil after remediation, the waste gas generated in the treatment process of each box body taken out through a discharge opening enters a gas treatment device through an air suction pump for treatment, and the leacheate in the liquid collecting box enters a liquid treatment device through a drainage pump for treatment.
Compared with the prior art, the invention has the following advantages:
1. the soil coagulator is broken through rotating the stirring rod, ferromagnetic substances in the soil are recovered through the magnetic adsorption part, the waste of ferromagnetic substance resources is reduced, and the difficulty in later-stage soil leaching and repairing is reduced.
2. Through the multilayer filter screen and the vibrations mode of screening case, solid waste gas pollutant (battery, plastic bottle etc.), bag form discarded object (container bag, plastic bag etc.), banded discarded object (waste rope, cable etc.) in the abundant separation soil have compared prior art and have avoided artifical degree of difficulty and the time of picking up, have also reduced the prosthetic degree of difficulty and the time of later stage soil drip washing.
3. The rolling wheel of the reprocessing box is used for heating and covering the soil, so that the soil granularity is greatly refined, the contact area between the soil granularity and the leacheate is increased, the leaching efficiency is improved, and the repairing time is saved; and separating volatile pollution gas.
4. The whole soil remediation process is a process of collecting ferromagnetic substances, separating soil from pollutants and continuously refining the soil; in the process of gradually refining the soil, the polluted gas in the soil is continuously separated and recovered, the separation and recovery effect of the solid pollutants is good, and the polluted liquid is recovered after the soil is leached by the leacheate, so that the waste gas, the waste water and the solid waste in the soil are effectively repaired, and the comprehensive repairing effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a magnetic attraction portion.
In the figure: 10. a pretreatment tank; 11. a feed inlet; 12. a stirring rod; 13. a magnetic adsorption part; 20. screening the box; 21. filtering with a screen; 22. an inclined hopper opening; 30. a reprocessing box; 31. a rolling wheel; 40. leaching the precipitation tank; 41. a spray opening; 42. a filter port; 43. a discharge port; 50. a liquid collection tank; 60. a gas processing device; 70. a liquid treatment apparatus.
Detailed Description
As shown in fig. 1-2, a soil remediation full-treatment device is characterized by comprising a pretreatment tank 10, a screening tank 20, a retreatment tank 30, a leaching and settling tank 40 and a liquid collection tank 50 which are sequentially distributed from top to bottom; a soil feeding hole 11 is formed in the top of the pretreatment box 10, a plurality of stirring rods 12 which are controlled to rotate by a driving motor are arranged on the top and the side wall of the pretreatment box, and a magnetic adsorption part 13 is fixedly connected to the outer end parts of the stirring rods 12; the screening box 20 is a vibration type box body with vibration frequency controlled by an alternating motor, a plurality of layers of filter screens 21 are arranged in the screening box, an inclined hopper opening 22 for soil to slide out is arranged at the bottom of the screening box, and the inclined hopper opening 22 is elastically connected with an inlet of the reprocessing box 30; the top of the reprocessing box 30 is provided with a rolling wheel 31 which is controlled by a lifting mechanism and a reciprocating mechanism to move up and down and left and right; the side wall of the leaching and settling tank 40 is provided with a plurality of leacheate spraying ports 41 and a plurality of discharging ports 43, the bottom of the tank is inclined at a certain angle, the lower end of the tank is provided with a liquid filtering port 42, and the filtering port is connected with a liquid collecting tank 50; the bottoms of the pretreatment tank 10 and the reprocessing tank 30 are both openable and controlled by an electromagnetic valve.
In order to facilitate the removal of the ferromagnetic substances treated by the pretreatment tank 10 and the solid waste filtered by the sieving tank 20, it is preferable that: the magnetic adsorption part 13 is detachably and fixedly connected with the stirring rod 12, and the side walls of the pretreatment box 10 and the screening box 20 are provided with open windows.
Preferably: magnetic adsorption portion 13 is the toper of big terminal surface outside, and inside sunken certain radian that is in big terminal surface middle part for increase adsorption area and adsorption effect.
In order to eliminate waste gas and waste water mixed in soil or generated by treatment in the treatment process of each box body, each box body is provided with an air outlet and is connected with a gas treatment device 60 through an air pump; the liquid collection tank 50 is connected to the liquid treatment device 70 by a drain pump.
Preferably: an electromagnetic heating system is arranged inside the rolling wheel 31. Through the heating of the electromagnetic heating system, the rolling wheel 31 rolls the soil at a high temperature, and pollutants which are easy to degrade and volatile pollution gas in the soil are pretreated before the soil is leached.
In addition, the embodiment also provides a use method of the soil remediation full-treatment device, which comprises the following steps:
s1, adding soil to be restored into a pretreatment box 10 from a soil feeding hole 11, and simultaneously starting a stirring rod 12;
s1-1, starting the stirring rod 12 from high speed to low speed, wherein the high speed rotation stirring is used for breaking the coagulated soil and reducing the particle size of the coagulated soil, and the low speed stirring is used for making the magnetic adsorption part 13 adsorb ferromagnetic pollutants in the soil;
s2, the bottom of the pretreatment box 10 is controlled to be opened by an electromagnetic valve, the soil which is stirred and separated from ferromagnetic pollutants falls into a screening box 20, the box body is vibrated by controlling an alternating motor, the soil enters a retreatment box 30 through a plurality of layers of filter screens 21 and an inclined hopper opening 22, and large solid or flexible or bagged or strip pollutants in the soil stay on the filter screens 21;
s3, controlling the roller 31 to descend below the soil height through the lifting mechanism, controlling the roller 31 to move left and right through the reciprocating mechanism, covering the soil surface, greatly reducing and refining the soil granularity on the basis, and then heating the roller 31 through the electromagnetic heating system to enable the roller 31 to quickly discharge volatile gas and low-melting-point pollutants which are easy to degrade at high temperature while refining the soil;
s4, controlling the refined soil in the retreatment box 30 to fall into the leaching and settling box 40 through an electromagnetic valve, leaching the residual pollutants in the soil in the leaching and settling box 40 through chemical liquid or water sprayed from a spraying port 41, and precipitating after leaching;
s5, the precipitated liquid flows into the liquid collection box 50 through the filter opening 42, the residual soil, namely the soil after remediation, is taken out through the discharge opening 43, the waste gas generated in the treatment process of each box body enters the gas treatment device 60 through the suction pump for treatment, and the leacheate in the liquid collection box 50 enters the liquid treatment device 70 through the drainage pump for treatment.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any manner. Those skilled in the art can make many possible variations and modifications to the technical solution of the present invention using the methods disclosed above, or modify equivalent embodiments with equivalent variations, without departing from the technical principle and scope of the invention. Therefore, any combination, modification or substitution of the technical features disclosed in the present invention according to the technical essence of the present invention should fall within the protection scope of the technical solution of the present invention, unless the principle or the solution of the present invention is departed from.

Claims (8)

1. The soil remediation full-treatment device is characterized by comprising a pretreatment box (10), a screening box (20), a retreatment box (30), a leaching precipitation box (40) and a liquid collection box (50) which are sequentially distributed from top to bottom; a soil feeding hole (11) is formed in the top of the pretreatment tank (10), a plurality of stirring rods (12) controlled to rotate by a driving motor are arranged on the top and the side wall of the pretreatment tank, and a magnetic adsorption part (13) is fixedly connected to the outer end parts of the stirring rods (12); the screening box (20) is a vibration type box body with vibration frequency controlled by an alternating motor, a plurality of layers of filter screens (21) are arranged in the screening box, an inclined hopper opening (22) for soil to slide out is arranged at the bottom of the screening box, and the inclined hopper opening (22) is elastically connected with an inlet of the reprocessing box (30); the top of the reprocessing box (30) is provided with a rolling wheel (31) which is controlled by a lifting mechanism and a reciprocating mechanism to move up and down and left and right; the side wall of the leaching and settling tank (40) is provided with a plurality of leacheate spraying ports (41) and a plurality of discharging ports (43), the bottom of the tank is inclined at a certain angle, the lower end of the tank is provided with a liquid filtering port (42), and the filtering port (42) is connected with a liquid collecting tank (50); the bottoms of the pretreatment tank (10) and the reprocessing tank (30) are both openable and controlled by an electromagnetic valve.
2. The soil remediation total treatment apparatus of claim 1, wherein the magnetic adsorption section (13) is removably and fixedly connected to the stirring rod (12).
3. The soil remediation total treatment apparatus of claim 2, wherein the magnetic attachment portion (13) is tapered with the large end face on the outside and the middle of the large end face is recessed inwardly to form a curvature.
4. The soil remediation total treatment apparatus of claim 1, wherein the pretreatment tank (10) and the screening tank (20) are provided with open windows in their side walls.
5. A soil remediation total treatment apparatus according to claim 3 or 4 wherein each of the tanks is provided with gas outlets and is connected to the gas treatment means (60) by means of a suction pump.
6. A soil remediation total treatment apparatus according to claim 5 wherein the liquid collection tank (50) is connected to the liquid treatment apparatus (70) by a drain pump.
7. A soil remediation total treatment apparatus as claimed in claim 6 wherein the roller (31) is internally provided with an electromagnetic heating system.
8. The method of using a soil remediation total treatment apparatus as claimed in claim 7, including the steps of:
s1, adding soil to be restored into a pretreatment box (10) from a soil feeding hole (11), and simultaneously opening a stirring rod (12);
s1-1, starting the stirring rod (12) from high speed to low speed, wherein the high speed rotation stirring is used for breaking the coagulated soil and reducing the particle size of the coagulated soil, and the low speed stirring is used for enabling the magnetic adsorption part (13) to adsorb ferromagnetic pollutants in the soil;
s2, the bottom of the pretreatment box (10) is controlled to be opened by an electromagnetic valve, the soil which is stirred and separated from ferromagnetic pollutants falls into a screening box (20), the box body vibrates by controlling an alternating motor, the soil enters a retreatment box (30) through a plurality of layers of filter screens (21) and an inclined hopper opening (22), and large solid pollutants in the soil stay on the filter screens (21);
s3, controlling the roller wheel (31) to descend below the soil height through the lifting mechanism, controlling the roller wheel (31) to move left and right through the reciprocating mechanism to cover the soil surface, greatly reducing and refining the soil granularity on the basis, and rapidly discharging volatile gas and low-melting-point pollutants which are easily degraded at high temperature while refining the soil through the roller wheel (31) heated by an electromagnetic heating system;
s4, controlling the refined soil in the retreatment box (30) to fall into a leaching and settling box (40) through an electromagnetic valve, leaching and treating the residual pollutants in the soil in the leaching and settling box (40) through chemical liquid or water sprayed from a spraying port (41), and precipitating after leaching;
s5, the precipitated liquid flows into a liquid collecting box (50) through a filter opening (42), the residual soil, namely the repaired soil, is taken out through a discharge opening (43), waste gas generated in the treatment process of each box body enters a gas treatment device (60) through an air suction pump for treatment, and leacheate in the liquid collecting box (50) enters a liquid treatment device (70) through a drainage pump for treatment.
CN201911063529.7A 2019-11-01 2019-11-01 Soil remediation full-treatment device and using method thereof Active CN110681686B (en)

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CN208960608U (en) * 2018-09-06 2019-06-11 重庆三峡环保(集团)有限公司 A kind of Soil leaching equipment

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