CN113058987A - Soil in-situ remediation device and method - Google Patents
Soil in-situ remediation device and method Download PDFInfo
- Publication number
- CN113058987A CN113058987A CN202110314929.1A CN202110314929A CN113058987A CN 113058987 A CN113058987 A CN 113058987A CN 202110314929 A CN202110314929 A CN 202110314929A CN 113058987 A CN113058987 A CN 113058987A
- Authority
- CN
- China
- Prior art keywords
- soil
- chamber
- heat
- solution
- oxidation
- 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.)
- Pending
Links
Images
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
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/062—Reclamation of contaminated soil thermally by using electrode or resistance heating elements
-
- 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
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
Abstract
A soil in-situ remediation device and a method belong to the technical field of remediation and treatment of contaminated soil. Soil normal position prosthetic devices from down up being provided with: the device comprises a roller, a gas collection chamber, a heat preservation enclosure, a loosening device, a lifter, an oxidation chamber, an absorption chamber, a water removal chamber, an adsorption chamber, an exhaust fan, a solar and wind power generation system and an electric heater. The invention has simple structure, low manufacturing cost and convenient operation. The soil remediation and treatment are carried out on site in the polluted site, and the soil does not need to be excavated and backfilled.
Description
Technical Field
The invention belongs to the technical field of polluted soil restoration and treatment, and particularly relates to a soil in-situ restoration device and method.
Background
With the rapid development of society, volatile substances such as gasoline, diesel oil, benzene, toluene, carbon tetrachloride and the like are polluted in a plurality of plots due to dumping of waste, leakage of accidents and the like, the pollution seriously affects the physicochemical properties of soil, and the safety of underground water is threatened. At present, the volatile polluted soil is treated by digging away the soil, burning, burying, flushing and biologically treating in different places, and the methods have advantages and limitations.
Chinese patent 'volatile contaminated soil restoration integrated device' (patent number: 201410232477.2) discloses a volatile contaminated soil restoration integrated device, which comprises a soil adding and discharging system, an oxidation system, a neutralization system, an adsorption system and an air discharging system; the soil discharging inclined hopper is positioned at the bottommost part of the tank body, a baffle plate for sealing the soil discharging inclined hopper is arranged at the upper end port of the soil discharging inclined hopper, two ends of the gas collecting pipe are opened and are fixed in the tank body through a support, and a plurality of gas collecting holes are formed in the pipe wall of the gas collecting pipe; the soil adding port is arranged on the tank body, and the air inlet is arranged on the tank body between the soil adding port and the baffle; the oxidation system comprises an ozone oxidation water storage tank, an aeration disc arranged in the water storage tank, an ozone generating device communicated with the aeration disc and an oxidation water sprayer communicated with the ozone oxidation water storage tank through a first circulating pump; the neutralization system comprises a neutralization liquid tank and a neutralization liquid spraying device communicated with the neutralization liquid tank through a second circulating pump; the air exhaust system includes an opening at the top of the tank and an exhaust fan mounted in the opening. The device has an integrated structure, a simple structure and small occupied area, and the repaired soil can be directly backfilled in situ. But this patent requires excavation and backfilling of the soil.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical limitation of the patent is overcome, and the device and the method for in-situ soil remediation are provided, so that various volatile polluted soils can be effectively treated, the structure is simple, the operation is convenient, the soil remediation and treatment can be carried out on the polluted site, and the soil does not need to be excavated and backfilled.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an in situ soil remediation device includes a frame and a housing surrounding the frame.
Soil normal position prosthetic devices is provided with from down up: the device comprises a roller 1, a gas collection chamber 2, a heat preservation enclosure 3, a spinner 4, a lifter 5, an oxidation chamber 6, an absorption chamber 7, a dewatering chamber 8, an adsorption chamber 9, an exhaust fan 10, a solar and wind power generation system 11 and an electric heater.
The roller 1 is arranged at the bottommost part of the frame.
The gas collection chamber 2 is arranged at the lower part of the frame.
The heat-insulation enclosing body 3 is composed of heat-insulation enclosing plates, the heat-insulation enclosing plates are of a flat plate type structure and are provided with four heat-insulation enclosing bodies 3, the heat-insulation enclosing bodies 3 are embedded in the air collecting chamber 2, the inner side of the air collecting chamber 2 is provided with upper and lower sliding grooves, and the heat-insulation enclosing bodies 3 can move up and down in the sliding grooves. One side of the outer wall of the heat-insulating enclosing body is provided with a gear groove.
The unscrewing device 4 is arranged at the upper part in the heat-insulation enclosing body 3, is integrated with the heat-insulation enclosing body 3, and can move up and down in the sliding groove together with the heat-insulation enclosing body 3. The unscrewing device 4 comprises a controller 4-1, a motor 4-2, an unscrewing wheel 4-3 and unscrewing teeth 4-4. The controller 4-1 and the motor 4-2 are arranged on a shell of the soil in-situ remediation device, and the controller 4-1 and the motor 4-2 are connected through a cable. The unscrewing wheel 4-3 is of a cylindrical structure, the unscrewing wheel 4-3 is horizontally arranged in the heat-insulating enclosing body 3, a central shaft of the unscrewing wheel 4-3 is connected with a rotating shaft of the motor 4-2 into a whole, and the motor 4-2 drives the unscrewing wheel 4-3 to rotate. The loosening teeth 4-4 are of blade type long strip structures, the loosening teeth 4-4 are arranged on the loosening wheel 4-3, a plurality of loosening teeth 4-4 are arranged, and due to rotation of the loosening wheel 4-3, the loosening teeth 4-4 cut and loosen soil, so that volatile gas in the soil escapes.
The lifter 5 comprises a gear disc, a hand crank and a tumbler. The gear plate is arranged on the inner side of the frame, gears on the gear plate are meshed with gear grooves on the outer wall of the heat-insulation enclosing body 3, and the heat-insulation enclosing body 3 and the loosening device 4 are driven by the rotation of the gear plate to move up and down in the sliding grooves. The hand crank is arranged on the shell and connected with the gear disc into a whole, and the hand crank is shaken to drive the gear disc to rotate. The tumbler is the inserted bar, installs perpendicularly on the shell, takes out the tumbler and locks together with the crank after the crank stops to wave, prevents to keep warm and encloses the body and the fall of unscrewing the ware.
The oxidation chamber 6 is positioned above the gas collection chamber 2; the oxidation chamber 6 is internally provided with an oxidation assembly, the oxidation assembly comprises an oxidation water sprayer 6-1 positioned at the upper part, an oxidation water storage tank 6-2 positioned at the lower part and an ozone aeration disc 6-3 arranged in the oxidation water storage tank 6-2, the ozone aeration disc 6-3 is communicated with an ozone generator through an aeration pipe, and the oxidation chamber 6 is also provided with an oxidation water circulating pump for pumping the oxidation water in the oxidation water storage tank 6-2 into the oxidation water sprayer 6-1. An oxidation water collector 6-4 is arranged above the oxidation water storage tank 6-2, and the oxidation water collector 6-4 enables the sprayed oxidation water to be collected and reflowed to the oxidation water storage tank 6-2.
The absorption chamber 7 is provided with an absorption assembly, and the absorption assembly comprises a solution sprayer 7-1 positioned at the upper part, a solution water storage tank 7-2 positioned at the lower part and a solution circulating pump for pumping the solution in the solution water storage tank 7-2 into the solution sprayer 7-1. A solution collector 7-3 is arranged above the solution water storage tank 7-2, and the solution collector 7-3 collects and reflows the sprayed solution to the solution water storage tank 7-2. The solution in the solution water storage tank 7-2 is sodium hydroxide solution or lime water or sulfuric acid or hydrochloric acid.
The upper part of the absorption chamber 7 is provided with a water removal chamber 8, and the water removal chamber 8 is used for collecting and returning large liquid drops in the gas so as to reduce the moisture in the gas. The working principle is that the gas enters the water removing chamber 8, passes through a series of bends and is discharged from the top, and the water drops fall linearly due to the action of the mass and the kinetic energy of the water drops when passing through the bend part, collide with the surface of the components of the water removing chamber 8 and rebound under the action of gravity.
An adsorption chamber 9 is arranged at the upper part of the water removing chamber 8, and activated carbon is arranged in the adsorption chamber 9. The activated carbon is required to have the advantages of developed pores, large specific surface area, high adsorption speed, friction resistance, flushing resistance and the like, and if the activated carbon is found to be sticky after a long time of operation, the activated carbon needs to be replaced in time when the air speed is reduced.
Specifically, the uppermost end of the soil in-situ remediation device is designed to be a conical structure, and the top end of the conical structure is provided with an exhaust fan 10.
The electric heater is horizontally arranged in the soil to heat the surrounding soil.
Further, soil normal position prosthetic devices be the cuboid structure, the frame adopts stainless steel material to make, the shell adopts hard plastic board to make.
Further, the roller 1 is made of rubber materials, and four rollers 1 are arranged.
Further, the gas collecting chamber 2 is of a cuboid structure.
Furthermore, the heat-insulating enclosing plate comprises three layers of materials, wherein the first layer and the third layer are made of stainless steel plates or hard plastic plates, and the middle is filled with a heat-insulating material.
Further, the ozone generator is an intermediate frequency ozone generator. Can generate ozone with the concentration of more than 10mg/L, has less power consumption and small occupied area, and can realize automatic control.
Furthermore, the solar and wind power generation system is provided with a vertical rod 11-1, a wind wheel 11-2, a wind wheel generator, a photovoltaic panel, a battery pack and a controller. The vertical rod is vertically arranged at the top of the soil in-situ remediation device and is of a telescopic structure, and the length of the vertical rod can be adjusted. The wind wheel and the wind wheel generator are arranged on the top of the vertical rod. The photovoltaic panel is arranged on one side surface of the soil in-situ remediation device. The battery pack and the controller are arranged on the side part of the upper conical structure. And all the electric parts of the soil in-situ remediation device are connected with the battery pack through cables.
Further, the equipment is preferably provided, and a baffle plate dehydrator or a swirling flow plate dehydrator is arranged in the dehydration chamber 8.
Furthermore, the soil in-situ remediation device is provided with an observation port and a maintenance and replacement port, and the volume of the soil in-situ remediation device is determined according to the amount of soil to be treated and is vertically placed.
Furthermore, in order to save space and beautify appearance, the ozone generator, the oxidizing water circulating pump and the solution circulating pump are arranged on the side part of the conical structure at the upper part.
The method for repairing the soil in situ repairing device comprises the following steps:
firstly, a groove is dug at the upper part of the soil block to be restored, the size, the shape and the depth of the groove are matched with those of the heat-insulating enclosure body 3, and a plurality of parallel grooves are dug in the space enclosed by the groove.
And secondly, arranging an electric heater and a cable at the bottom of the parallel groove, wherein the electric heater is connected with the battery pack through the cable.
And thirdly, moving the soil in-situ repairing device to the upper part of the excavated groove, opening the stop cock, shaking the hand crank, putting down the heat-insulating enclosure body 3 and the unscrewing device 4, arranging the heat-insulating enclosure body 3 in the groove, and arranging the unscrewing device 4 on the surface of the soil.
And fourthly, turning on a power switch, heating the surrounding soil by an electric heater, operating the unscrewing device 4, cutting and loosening the soil by the unscrewing teeth 4-4, and allowing volatile gas to escape from the soil and enter the gas collection chamber 2 under the pumping and exhausting action of the exhaust fan 10.
Fifthly, the volatilized waste gas rises into the oxidation chamber 6, the oxidation water is sprayed out from the uniformly distributed oxidation water sprayer 6-1 to form countless fine fog drops, the fog drops are fully mixed and contacted with the volatilized waste gas to generate chemical reaction, harmful substances in the volatilized waste gas are oxidized into small molecular substances which are easy to absorb and adsorb, and part of the harmful substances are absorbed in the oxidation water.
The volatilized waste gas continuously rises to contact with the solution sprayed by the solution sprayer 7-1, the harmful substances in the volatilized waste gas and the solution are subjected to chemical reaction, and the reaction product flows into the solution water storage tank 7-2 along with the solution.
The gas then enters the moisture removal chamber 8 where the droplets in the volatilised exhaust gas are intercepted.
The volatilized waste gas continues to rise into the adsorption chamber 9, and substances and liquid drops which are included in the volatilized waste gas are intercepted and adsorbed at the adsorption chamber.
Ninthly, finally, the gas is discharged by the exhaust fan 10, so that the emission reaching the standard is realized.
After recovery of the red (R) part, a hand crank is shaken to pack up the heat-insulation surrounding body 3 and the unscrewing device 4, the heat-insulation surrounding body and the unscrewing device are arranged in the gas collection chamber 2, the whole soil in-situ recovery device is moved, and the electric heater and the cable are taken out.
The invention has the beneficial effects that: the structure is simple, the manufacturing cost is low, and the operation is convenient. Secondly, the soil is repaired and treated on site in the polluted site without excavating and backfilling the soil.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the construction of the thermal enclosure and spinner of the present invention;
in the figure: the device comprises a roller 1, a gas collecting chamber 2, a heat preservation enclosure 3, a loosening device 4, a controller 4-1, a motor 4-2, a loosening wheel 4-3, loosening teeth 4-4, a lifter 5, an oxidation chamber 6, an oxidation water sprayer 6-1, an oxidation water storage tank 6-2, an ozone aeration disc 6-3, an oxidation water collector 6-4, an absorption chamber 7, a solution sprayer 7-1, a solution storage tank 7-2, a solution collector 7-3, a water removing chamber 8, an adsorption chamber 9, an exhaust fan 10, a solar and wind power generation system 11-1, a vertical rod 11-1 and a wind wheel 11-2.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
The gas escaping from the land parcel to be repaired is acid gas.
The soil in-situ remediation device of the invention as shown in fig. 1 and 2 is a cuboid structure and comprises a frame and a shell surrounding the frame, wherein the frame is made of stainless steel materials, and the shell is made of hard plastic plates.
The soil normal position prosthetic devices of cuboid structure is provided with from up down: the device comprises a roller 1, a gas collection chamber 2, a heat preservation enclosure 3, a spinner 4, a lifter 5, an oxidation chamber 6, an absorption chamber 7, a dewatering chamber 8, an adsorption chamber 9, an exhaust fan 10, a solar and wind power generation system 11 and an electric heater.
The roller 1 is made of rubber materials, the roller 1 is installed at the bottommost part of the frame, and four rollers are arranged.
The gas collection chamber 2 is arranged at the lower part of the frame. The gas collection chamber 2 is of a cuboid structure.
The heat-insulating enclosing body 3 is composed of heat-insulating enclosing plates which are of a flat plate type structure, the heat-insulating enclosing plates are made of three layers of materials, the first layer and the third layer are made of stainless steel plates, and the middle is filled with a heat-insulating material. The heat preservation bounding wall be equipped with four, four heat preservation bounding walls enclose into heat preservation enclosure 3, inlay in the heat preservation enclosure 2 inboardly, the collection chamber inboard is equipped with the sliding tray from top to bottom, heat preservation enclosure 3 can reciprocate in the sliding tray. One side of the outer wall of the heat-insulating enclosing body 3 is provided with a gear groove.
The unscrewing device 4 is arranged at the upper part in the heat-insulation enclosing body, is integrated with the heat-insulation enclosing body 3, and can move up and down in the sliding groove. The unscrewing device 4 comprises a controller 4-1, a motor 4-2, an unscrewing wheel 4-3 and unscrewing teeth 4-4. The controller 4-1 and the motor 4-2 are arranged on a shell of the soil in-situ remediation device, and the controller 4-1 and the motor 4-2 are connected through a cable. The unscrewing wheel 4-3 is of a cylindrical structure, the unscrewing wheel 4-3 is horizontally arranged in the heat-insulating enclosing body 3, a central shaft of the unscrewing wheel 4-3 is connected with a rotating shaft of the motor 4-2 into a whole, and the motor 4-2 drives the unscrewing wheel 4-3 to rotate. The loosening teeth 4-4 are of blade type long strip structures, the loosening teeth 4-4 are arranged on the loosening wheel 4-3, a plurality of loosening teeth 4-4 are arranged, and due to rotation of the loosening wheel 4-3, the loosening teeth 4-4 cut and loosen soil, so that volatile gas in the soil escapes.
The lifter 5 comprises a gear disc, a hand crank and a tumbler. The gear plate is arranged in the frame, a gear on the gear plate is meshed with a gear groove on the outer wall of the heat-insulation enclosing body, and the heat-insulation enclosing body 3 and the loosening device 4 are driven by the rotation of the gear plate to move up and down in the sliding groove. The hand crank is arranged on the shell and connected with the gear disc into a whole, and the hand crank is shaken to drive the gear disc to rotate. The tumbler is a metal inserted bar and is vertically arranged on the shell, and when the hand crank stops shaking, the tumbler is drawn out and locked with the hand crank, so that the heat-insulating enclosure body 3 and the unscrewing device 4 are prevented from falling.
The oxidation chamber 6 is positioned at the upper part of the gas collecting chamber 2; the oxidation chamber is internally provided with an oxidation assembly, the oxidation assembly comprises an oxidation water sprayer 6-1 positioned at the upper part, an oxidation water storage tank 6-2 positioned at the lower part and an ozone aeration disc 6-3 arranged in the oxidation water storage tank, the ozone aeration disc 6-3 is communicated with an ozone generator through an aeration pipe, and the oxidation chamber is also provided with an oxidation water circulating pump for pumping the oxidation water in the oxidation water storage tank into the oxidation water sprayer. An oxidation water collector 6-4 is arranged above the oxidation water storage tank, and the oxidation water collector 6-4 collects and reflows the sprayed oxidation water into the oxidation water storage tank 6-2.
In a further preferred device, the ozone generator is a medium frequency ozone generator. Can generate ozone with the concentration of more than 10mg/L, has less power consumption and small occupied area, and can realize automatic control.
The absorption chamber 7 is provided with an absorption assembly, and the absorption assembly comprises a solution sprayer 7-1 positioned at the upper part, a solution water storage tank 7-2 positioned at the lower part and a solution circulating pump for pumping the solution in the solution water storage tank into the solution sprayer. A solution collector 7-3 is arranged above the solution water storage tank 7-2, and the solution collector 7-3 collects and reflows the sprayed solution into the solution water storage tank 7-2. The solution is sodium hydroxide solution or lime water.
The absorption chamber 7 is provided with a water removal chamber 8 at the upper part, the water removal chamber 8 collects large liquid drops in gas and returns the large liquid drops to reduce water in the gas, the working principle is that the gas enters the water removal chamber, passes through a series of bent channels and is discharged from the upper part, and the water drops fall linearly under the action of the mass and the kinetic energy of the water drops when passing through the bent channels, collide with the surface of a component in the water removal chamber and rebound under the action of gravity.
In a further preferred device, a baffle plate dehydrator is arranged in the dehydration chamber 8.
The adsorption chamber 9 is arranged at the upper part of the water removing chamber 8, the activated carbon is arranged in the adsorption chamber 9, and the activated carbon has the advantages of developed pores, large specific surface area, high adsorption speed, friction resistance, flushing resistance and the like, and if the activated carbon is found to be sticky after a long time of operation, the activated carbon needs to be replaced in time when the air speed is reduced.
Specifically, the top end of the soil in-situ remediation device is designed with a conical structure, and the upper part of the conical structure is provided with an exhaust fan 10.
The soil normal position prosthetic devices on seted up and observed the mouth and overhaul and change the mouth, soil normal position prosthetic devices's volume size is according to treating how much of soil volume and deciding, adopts vertical placing.
Furthermore, in order to save space and beautify appearance, the ozone generator, the oxidizing water circulating pump and the solution circulating pump are arranged on the side part of the conical structure at the upper part.
The solar and wind power generation system 11 is provided with a vertical rod 11-1, a wind wheel 11-2, a wind wheel generator, a photovoltaic panel, a battery pack and a controller. The vertical rod 11-1 is vertically arranged at the top of the soil in-situ remediation device, and the vertical rod 11-1 is of a telescopic structure and can be adjusted in length. The wind wheel 11-2 and the wind wheel generator are arranged on the top of the vertical rod. The photovoltaic panel is arranged on one side surface of the soil in-situ remediation device. The battery pack and the controller are arranged on the side part of the upper conical structure. And all the electric parts of the soil in-situ remediation device are connected with the battery pack through cables.
The electric heater is horizontally arranged in the soil to heat the surrounding soil.
The method for repairing the soil by adopting the soil in-situ repairing device comprises the following steps:
firstly, rectangular grooves are dug in the upper portion of a soil plot to be restored, the size, the shape and the depth of each rectangular groove are matched with those of the heat preservation enclosure body 3, and a plurality of parallel grooves are dug in a rectangle enclosed by the rectangular grooves.
And secondly, arranging an electric heater and a cable at the bottom of the parallel groove, wherein the electric heater is connected with the battery pack through the cable. The embedding depth of the electric heater is greater than the cutting depth of the unscrewing device 4, so that the electric heater and the cable are prevented from being damaged by the unscrewing device 4.
And thirdly, moving the soil in-situ repairing device to the upper part of the excavated rectangular groove, opening the stop cock, shaking the hand crank, putting down the heat-insulating enclosing body 3 and the unscrewing device 4, arranging the heat-insulating enclosing body 3 in the rectangular groove, and arranging the unscrewing device 4 on the surface of the soil.
And fourthly, turning on a power switch, heating the surrounding soil by an electric heater, operating the unscrewing device 4, cutting and loosening the soil by the unscrewing teeth 4-4, and allowing volatile gas to escape from the soil and enter the gas collection chamber 2 under the pumping and exhausting action of the exhaust fan 10.
Fifthly, the volatilized waste gas rises into the oxidation chamber 6, the oxidation water is sprayed out from the oxidation water sprayer 6-1 to form countless fine fog drops, the fog drops are fully mixed and contacted with the volatilized waste gas to generate oxidation reaction, harmful substances in the volatilized waste gas are oxidized into small molecular substances which are easy to absorb and adsorb, and part of the harmful substances are absorbed in the oxidation water.
The volatilized waste gas continuously rises to contact with the solution sprayed by the solution sprayer 7-1, the harmful substances in the volatilized waste gas and the solution are subjected to chemical reaction, and the reaction product flows into the solution water storage tank 7-2 along with the solution.
The gas then enters the moisture removal chamber 8 where the droplets in the volatilised exhaust gas are intercepted.
The volatilized waste gas continues to rise into the adsorption chamber 9, and substances and liquid drops which are included in the volatilized waste gas are intercepted and adsorbed at the adsorption chamber.
Ninthly, finally, the gas is discharged by the exhaust fan 10, so that the emission reaching the standard is realized.
After recovery of the red (R) part, a hand crank is shaken to pack up the heat-insulation surrounding body 3 and the unscrewing device 4, the heat-insulation surrounding body and the unscrewing device are arranged in the gas collection chamber 2, the whole soil in-situ recovery device is moved, and the electric heater and the cable are taken out. The next parcel repair is started.
Example 2
Example 2 differs from the example in that the gas escaping from the parcel to be remediated is an alkaline gas. The solution is sulfuric acid or hydrochloric acid.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The in-situ soil remediation device is characterized by comprising a frame and a shell surrounding the frame;
soil normal position prosthetic devices is provided with from down up: the device comprises a roller (1), a gas collection chamber (2), a heat preservation enclosure (3), a loosening device (4), a lifter (5), an oxidation chamber (6), an absorption chamber (7), a water removal chamber (8), an adsorption chamber (9), an exhaust fan (10), a solar and wind power generation system (11) and an electric heater;
the roller (1) is arranged at the bottommost part of the frame;
the gas collection chamber (2) is arranged at the lower part of the frame;
the heat-insulation enclosing body (3) is composed of heat-insulation enclosing plates, the heat-insulation enclosing plates are of a flat plate type structure and are provided with four heat-insulation enclosing bodies (3), the heat-insulation enclosing bodies (3) are embedded in the gas collection chamber (2), the inner side of the gas collection chamber (2) is provided with an upper sliding groove and a lower sliding groove, and the heat-insulation enclosing bodies (3) can move up and down in the sliding grooves; one side of the outer wall of the heat-insulating enclosing body is provided with a gear groove;
the unscrewing device (4) is arranged at the upper part in the heat-insulating enclosing body (3), is integrated with the heat-insulating enclosing body (3) and can move up and down in the sliding groove together with the heat-insulating enclosing body (3); the unscrewing device (4) comprises a controller (4-1), a motor (4-2), an unscrewing wheel (4-3) and unscrewing teeth (4-4); the controller (4-1) and the motor (4-2) are arranged on a shell of the soil in-situ remediation device, and the controller (4-1) is connected with the motor (4-2) through a cable; the loosening wheel (4-3) is of a cylindrical structure, the loosening wheel (4-3) is horizontally placed in the heat-insulation enclosing body (3), a central shaft of the loosening wheel (4-3) is connected with a rotating shaft of the motor (4-2) into a whole, and the motor (4-2) drives the loosening wheel (4-3) to rotate; the loosening teeth (4-4) are of blade type long strip structures, the loosening teeth (4-4) are arranged on the loosening wheel (4-3), a plurality of loosening teeth (4-4) are arranged, and due to the rotation of the loosening wheel (4-3), the loosening teeth (4-4) cut and loosen soil, so that volatile gas in the soil escapes;
the lifter (5) comprises a gear disc, a hand crank and a tumbler; the gear disc is arranged on the inner side of the frame, gears on the gear disc are meshed with gear grooves in the outer wall of the heat-insulation enclosing body (3), and the heat-insulation enclosing body (3) and the unscrewing device (4) are driven by the rotation of the gear disc to move up and down in the sliding grooves; the hand crank is arranged on the shell and connected with the gear disc into a whole, and the gear disc is driven to rotate by shaking the hand crank; the stop bolt is a plug rod and is vertically arranged on the shell, and when the hand crank stops shaking, the stop bolt is drawn out and locked with the hand crank together to prevent the heat-insulating enclosure body and the unscrewing device from falling;
the oxidation chamber (6) is positioned above the gas collection chamber (2); an oxidation assembly is arranged in the oxidation chamber (6), the oxidation assembly comprises an oxidation water sprayer (6-1) positioned at the upper part, an oxidation water storage tank (6-2) positioned at the lower part and an ozone aeration disc (6-3) arranged in the oxidation water storage tank (6-2), the ozone aeration disc (6-3) is communicated with an ozone generator through an aeration pipe, and the oxidation chamber (6) is also provided with an oxidation water circulating pump for pumping the oxidation water in the oxidation water storage tank (6-2) into the oxidation water sprayer (6-1); an oxidation water collector (6-4) is arranged above the oxidation water storage tank (6-2), and the oxidation water collector (6-4) enables the sprayed oxidation water to be collected and reflowed to the oxidation water storage tank (6-2);
the absorption chamber (7) is provided with an absorption assembly, and the absorption assembly comprises a solution sprayer (7-1) positioned at the upper part, a solution water storage tank (7-2) positioned at the lower part and a solution circulating pump for pumping the solution in the solution water storage tank (7-2) into the solution sprayer (7-1); a solution collector (7-3) is arranged above the solution water storage tank (7-2), and the solution collector (7-3) enables the sprayed solution to be collected and reflowed to the solution water storage tank (7-2); the solution in the solution water storage tank (7-2) is sodium hydroxide solution or lime water or sulfuric acid or hydrochloric acid;
a water removing chamber (8) is arranged at the upper part of the absorption chamber (7), and the water removing chamber (8) is used for collecting large liquid drops in the gas and returning the liquid drops to reduce the moisture in the gas;
an adsorption chamber (9) is arranged at the upper part of the water removing chamber (8), and activated carbon is arranged in the adsorption chamber (9);
the uppermost end of the soil in-situ remediation device is designed to be a conical structure, and an exhaust fan (10) is installed at the top end of the conical structure;
the electric heater is horizontally arranged in the soil to heat the surrounding soil.
2. The soil in-situ remediation device of claim 1, wherein the soil in-situ remediation device is a rectangular parallelepiped, the frame is made of stainless steel, and the housing is made of a hard plastic plate.
3. A soil in-situ remediation device according to claim 1, wherein the roller (1) is made of a rubber material, and four of the rollers (1) are provided.
4. The in-situ soil remediation device of claim 1, wherein the plenum (2) is of a rectangular parallelepiped structure.
5. The in-situ soil remediation device of claim 1 wherein the insulating enclosure comprises three layers of material, the first and third layers being stainless steel or rigid plastic sheets with insulation material therebetween.
6. The soil in-situ remediation device of claim 1, wherein the ozone generator is a medium frequency ozone generator; can generate ozone with the concentration of more than 10mg/L, has less power consumption and small occupied area, and can realize automatic control.
7. The soil in-situ remediation device of claim 1, wherein the solar and wind power generation system is provided with a vertical rod (11-1), a wind wheel (11-2), a wind wheel generator, a photovoltaic panel, a battery pack and a controller; the vertical rod is vertically arranged at the top of the soil in-situ remediation device, is of a telescopic structure and can adjust the length; the wind wheel and the wind wheel generator are arranged on the top of the vertical rod; the photovoltaic panel is arranged on one side surface of the soil in-situ remediation device; the battery pack and the controller are arranged on the side part of the upper conical structure; and all the electric parts of the soil in-situ remediation device are connected with the battery pack through cables.
8. An in-situ soil remediation device according to claim 1 wherein, preferably, the dewatering chamber (8) is provided with a baffled or swirl-baffled dewatering device.
9. The soil in-situ remediation device of claim 1, wherein the soil in-situ remediation device is provided with an observation port and a maintenance and replacement port, and the volume of the soil in-situ remediation device is determined according to the amount of soil to be treated and is vertically placed; the ozone generator, the oxidizing water circulating pump and the solution circulating pump are arranged on the side part of the conical structure at the upper part.
10. The method for repairing soil in-situ repair device according to any one of claims 1 to 9 is characterized by comprising the following steps:
firstly, digging grooves on the upper part of a soil block to be restored, wherein the size, the shape and the depth of the grooves are matched with those of the heat-insulating enclosure body (3), and digging a plurality of parallel grooves in a space enclosed by the grooves;
secondly, arranging an electric heater and a cable at the bottom of the parallel groove, wherein the electric heater is connected with the battery pack through the cable;
thirdly, moving the soil in-situ remediation device to the upper part of the excavated groove, opening the tumbler, shaking the hand crank, putting down the heat-insulating enclosure body (3) and the unscrewing device (4), arranging the heat-insulating enclosure body (3) in the groove, and arranging the unscrewing device (4) on the surface of the soil;
a power switch is turned on, the electric heater heats the surrounding soil, the unscrewing device (4) works, the unscrewing teeth (4-4) cut and loosen the soil, and volatile gas escapes from the soil and enters the gas collection chamber (2) under the pumping action of the exhaust fan (10);
the volatilized waste gas rises into the oxidation chamber (6), the oxidation water is sprayed out from the uniformly distributed oxidation water sprayer (6-1) to form countless fine fog drops, the fog drops are fully mixed and contacted with the volatilized waste gas to generate chemical reaction, harmful substances in the volatilized waste gas are oxidized into micromolecule substances which are easy to absorb and adsorb, and one part of the micromolecule substances is absorbed in the oxidation water;
sixthly, the volatilized waste gas continuously rises to contact with the solution sprayed by the solution sprayer (7-1), harmful substances in the volatilized waste gas and the solution are subjected to chemical reaction, and reaction products flow into the solution water storage tank (7-2) along with the solution;
the gas then enters a water removing chamber (8), and liquid drops in the volatile waste gas are intercepted;
the volatilized waste gas continuously rises to enter an adsorption chamber (9), and substances and liquid drops which are included in the volatilized waste gas are intercepted and adsorbed at the adsorption chamber;
ninthly, finally exhausting the gas by an exhaust fan (10) to achieve standard emission;
after recovery of the red (R) is finished, a hand crank is shaken to pack up the heat-insulation surrounding body (3) and the unscrewing device (4), the heat-insulation surrounding body and the unscrewing device are arranged in the gas collection chamber (2), the whole soil in-situ recovery device is moved, and the electric heater and the cable are taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314929.1A CN113058987A (en) | 2021-03-24 | 2021-03-24 | Soil in-situ remediation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314929.1A CN113058987A (en) | 2021-03-24 | 2021-03-24 | Soil in-situ remediation device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113058987A true CN113058987A (en) | 2021-07-02 |
Family
ID=76561637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110314929.1A Pending CN113058987A (en) | 2021-03-24 | 2021-03-24 | Soil in-situ remediation device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113058987A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060112627A1 (en) * | 2004-11-02 | 2006-06-01 | Geisel Donald J | Device, system, and method for remediation of contaminated soil |
| KR100803724B1 (en) * | 2007-03-29 | 2008-02-15 | (주)대우건설 | Apparatus and method for remediation of contaminated soil and groundwater by electric resistance heating with closed sectional shape steel electrode |
| CN203120395U (en) * | 2013-03-18 | 2013-08-14 | 湖南丰收机械有限公司 | Boat tractor with a lifting device for rotary cultivator |
| CN104056851A (en) * | 2014-06-06 | 2014-09-24 | 常州大学 | Integrated device for remediation on volatile pollution soil |
| CN104307863A (en) * | 2014-10-21 | 2015-01-28 | 常州大学 | Severely-polluted soil remediation device |
| CN104475442A (en) * | 2014-12-09 | 2015-04-01 | 常州大学 | Volatile contaminated soil and groundwater restoration system |
| CN104919918A (en) * | 2015-06-15 | 2015-09-23 | 韦展辉 | Lifting transmission shaft type ridging rotary cultivator |
| CN106890849A (en) * | 2017-01-16 | 2017-06-27 | 常州大学 | A kind of device of in-situ immobilization diesel fuel contaminated soil |
| CN107567736A (en) * | 2017-09-22 | 2018-01-12 | 甘肃龙麒生物科技股份有限公司 | A kind of rotary cultivator or combined working soil switching mechanism |
| CN108184349A (en) * | 2017-12-28 | 2018-06-22 | 安徽省阜阳市盛大机械有限公司 | One kind is broken ground stubble ploughing, rotary tillage device |
| CN109226240A (en) * | 2018-10-17 | 2019-01-18 | 广州市花林景观工程有限公司 | A kind of catalytic type contaminated soil remediation device |
| CN209787770U (en) * | 2019-03-12 | 2019-12-17 | 江苏欣田机械制造有限公司 | combined machine for middle ditching, rotary tillage, fertilizing and seeding |
| CN110915336A (en) * | 2019-05-29 | 2020-03-27 | 雷学军 | Ecological system treatment method |
| CN111482448A (en) * | 2020-04-03 | 2020-08-04 | 湖南省中晟热能科技有限公司 | Heavy metal soil treatment device and method |
| CN111495955A (en) * | 2020-04-29 | 2020-08-07 | 尤宝旺 | In-situ remediation method for petroleum-polluted soil |
| CN111713192A (en) * | 2020-07-28 | 2020-09-29 | 刘先超 | A soil pollution processing apparatus for environmental protection |
| CN112007944A (en) * | 2020-09-09 | 2020-12-01 | 广东佳德环保科技有限公司 | Volatile organic compound soil remediation device and method |
-
2021
- 2021-03-24 CN CN202110314929.1A patent/CN113058987A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060112627A1 (en) * | 2004-11-02 | 2006-06-01 | Geisel Donald J | Device, system, and method for remediation of contaminated soil |
| KR100803724B1 (en) * | 2007-03-29 | 2008-02-15 | (주)대우건설 | Apparatus and method for remediation of contaminated soil and groundwater by electric resistance heating with closed sectional shape steel electrode |
| CN203120395U (en) * | 2013-03-18 | 2013-08-14 | 湖南丰收机械有限公司 | Boat tractor with a lifting device for rotary cultivator |
| CN104056851A (en) * | 2014-06-06 | 2014-09-24 | 常州大学 | Integrated device for remediation on volatile pollution soil |
| CN104307863A (en) * | 2014-10-21 | 2015-01-28 | 常州大学 | Severely-polluted soil remediation device |
| CN104475442A (en) * | 2014-12-09 | 2015-04-01 | 常州大学 | Volatile contaminated soil and groundwater restoration system |
| CN104919918A (en) * | 2015-06-15 | 2015-09-23 | 韦展辉 | Lifting transmission shaft type ridging rotary cultivator |
| CN106890849A (en) * | 2017-01-16 | 2017-06-27 | 常州大学 | A kind of device of in-situ immobilization diesel fuel contaminated soil |
| CN107567736A (en) * | 2017-09-22 | 2018-01-12 | 甘肃龙麒生物科技股份有限公司 | A kind of rotary cultivator or combined working soil switching mechanism |
| CN108184349A (en) * | 2017-12-28 | 2018-06-22 | 安徽省阜阳市盛大机械有限公司 | One kind is broken ground stubble ploughing, rotary tillage device |
| CN109226240A (en) * | 2018-10-17 | 2019-01-18 | 广州市花林景观工程有限公司 | A kind of catalytic type contaminated soil remediation device |
| CN209787770U (en) * | 2019-03-12 | 2019-12-17 | 江苏欣田机械制造有限公司 | combined machine for middle ditching, rotary tillage, fertilizing and seeding |
| CN110915336A (en) * | 2019-05-29 | 2020-03-27 | 雷学军 | Ecological system treatment method |
| CN111482448A (en) * | 2020-04-03 | 2020-08-04 | 湖南省中晟热能科技有限公司 | Heavy metal soil treatment device and method |
| CN111495955A (en) * | 2020-04-29 | 2020-08-07 | 尤宝旺 | In-situ remediation method for petroleum-polluted soil |
| CN111713192A (en) * | 2020-07-28 | 2020-09-29 | 刘先超 | A soil pollution processing apparatus for environmental protection |
| CN112007944A (en) * | 2020-09-09 | 2020-12-01 | 广东佳德环保科技有限公司 | Volatile organic compound soil remediation device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104307863B (en) | Serious pollution soil restoring device | |
| US6109358A (en) | Venting apparatus and method for remediation of a porous medium | |
| CN102000693B (en) | Device for solar ex-situ remediation of volatile organic pollution soil | |
| ES2893848T3 (en) | Systems, method and treatment cells to rehabilitate and enhance land | |
| CN107309257B (en) | Heat-enhanced vapor extraction contaminated soil remediation device and method thereof | |
| JP4915574B2 (en) | Soil purification system | |
| BRPI0711440A2 (en) | dehydration system containing an infusion odor capture water vapor and water recovery system | |
| CN113058987A (en) | Soil in-situ remediation device and method | |
| CN207600114U (en) | One kind is based on new energy garbage drying equipment | |
| CN113083883A (en) | Contaminated site heat-preservation in-situ remediation system and method | |
| CN112718839A (en) | Heavy metal contaminated soil remediation equipment | |
| CN111085538A (en) | Device for repairing heavy metal contaminated soil based on microbial fuel cell principle | |
| CN214108291U (en) | Mobile microwave soil organic pollution remediation device | |
| CN210080344U (en) | Geological soil repairing system | |
| CN211071256U (en) | Soil remediation purifier | |
| WO2000045970A1 (en) | Apparatus and method for remediation of a porous medium | |
| CN110788131B (en) | Soil remediation method and device | |
| KR101059894B1 (en) | High efficiency drying machine of organic wastes | |
| CN201959978U (en) | Solar-energy ex-situ remediation device used for soil polluted by volatile organic substances | |
| KR20100106813A (en) | Apparatus for processing waste foods | |
| CN212349871U (en) | Soil remediation generator | |
| CN114749475B (en) | Volatile organic pollutant and yellow phosphorus contaminated soil remediation system | |
| CN220837199U (en) | Equipment capable of efficiently repairing soil | |
| CN218645587U (en) | Waste heat recovery device for garbage power generation | |
| CN220520272U (en) | Landfill ground water prosthetic devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210702 |