CN108746181B - Soil remediation equipment and working method thereof - Google Patents
Soil remediation equipment and working method thereof Download PDFInfo
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- CN108746181B CN108746181B CN201810959058.7A CN201810959058A CN108746181B CN 108746181 B CN108746181 B CN 108746181B CN 201810959058 A CN201810959058 A CN 201810959058A CN 108746181 B CN108746181 B CN 108746181B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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Abstract
The invention discloses a soil remediation device and a working method thereof, and the soil remediation device comprises a soil input belt conveyor, a soil output belt conveyor, a microwave heating container, a gas pollutant removal stirring water tank and a sewage filtering and adsorbing tank, wherein the microwave heating container can heat and remediate soil conveyed into the microwave heating container by the soil input belt conveyor, a plurality of right conical soil flow guide covers and a plurality of inverted frustum-shaped soil flow guide covers for soil rolling flow guide are arranged in the microwave heating container, clear water is contained in the gas pollutant removal stirring water tank, a plurality of stirring mechanisms are arranged in the gas pollutant removal stirring water tank in a matched manner, the inner bottom of the gas pollutant removal stirring water tank is communicated with the inner top of the sewage filtering and adsorbing tank through a Y-shaped three-way water guide pipe, and a plurality of filtering and adsorbing units are arranged in the sewage filtering and adsorbing tank. The soil remediation equipment and the working method thereof provided by the invention are convenient to operate and more thorough in soil remediation.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to soil remediation equipment and a working method thereof.
Background
Soil is an important natural environment on which human beings rely to live, and with the rapid development of industry, soil pollution is increasingly prominent. The soil remediation can greatly solve the problem of soil pollution and reach the standard of soil remediation. Organic matter pollutes and occupies very big part in the soil, and the equipment structure that carries out the restoration to organic matter in the soil is all more complicated to current, leads to soil remediation cost higher, and soil remediation cycle is long moreover, is unfavorable for extensive popularization. In addition, pollution gas is generated in the soil remediation process, and air pollution is caused if reasonable purification treatment is not performed on the pollution gas.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the soil remediation equipment and the working method thereof, which can be used for the pollution remediation of soil organic matters, have good remediation effect and high efficiency, and reasonably purify the polluted gas formed by soil remediation.
The technical scheme is as follows: in order to achieve the purpose, the soil remediation equipment comprises a soil input belt conveyor, a soil output belt conveyor, a microwave heating container, a gas pollutant removal stirring water tank and a sewage filtering and adsorbing tank, wherein the soil input belt conveyor is connected with the soil output belt conveyor;
the microwave heating container is provided with a feeding hole and a discharging hole, the soil input belt conveyor is correspondingly arranged at the feeding hole of the microwave heating container, the soil output belt conveyor is correspondingly arranged at the discharging hole of the microwave heating container, the microwave heating container can heat and repair soil conveyed into the microwave heating container by the soil input belt conveyor, and a plurality of right conical soil guide hoods and a plurality of inverted frustum-shaped soil guide hoods for soil rolling and guiding are arranged in the microwave heating container;
clear water is contained in the gas pollutant removing and stirring water tank, the inner top of the microwave heating container is communicated with the inner bottom of the gas pollutant removing and stirring water tank through a gas outlet pipeline, and the gas pollutant removing and stirring water tank is provided with a plurality of stirring mechanisms in a matched manner;
the interior bottom that gaseous pollutant got rid of the agitator tank switches on through Y type tee bend aqueduct and the interior top of sewage filtration adsorption tank, be provided with a plurality of filtration adsorption unit in the sewage filtration adsorption tank, it is a plurality of filtration adsorption unit can carry out filtration, absorption many times to the sewage through Y type tee bend aqueduct water conservancy diversion to water filtration adsorption tank in.
Furthermore, a feed inlet of the microwave heating container is positioned at the top of the microwave heating container, and a soil output end of the soil input belt conveyor is positioned at the feed inlet; the feeding hole is provided with an elastic automatic door in a matching way, and the feeding hole closed by the elastic automatic door can be opened by the impact of the falling soil output from the soil output end of the soil input belt conveyor.
Furthermore, the elastic automatic door comprises a triangular prism rod, two right-angle triangular blocks and two springs, wherein cavities are respectively formed in the inner walls of the two sides of the feeding hole, the triangular prism rod stretches across the feeding hole, the two ends of the triangular prism rod are respectively fixed with the bottoms of the two cavities, and one long edge of the triangular prism rod faces upwards and is opposite to the feeding hole; the two right-angle triangular blocks can be arranged on the triangular prism rod in a sliding fit mode, and the inclined surfaces of the two right-angle triangular blocks are arranged oppositely; the two springs are respectively and symmetrically sleeved on the rod part of the triangular prism rod between the right-angle triangular blocks and the cavity bottom of the cavity body, each spring has rebound thrust, and the two right-angle triangular blocks are mutually abutted under the pushing of the corresponding springs to form a V-shaped door with an opening opposite to the feeding hole.
Furthermore, the inner space of the microwave heating container is cylindrical, and the right conical soil guide cover and the inverted circular truncated cone soil guide cover are alternately arranged from top to bottom in the microwave heating container; the part, which is closest to the feeding hole, of the right conical soil flow guide cover is opposite to the feeding hole;
the cover edge of conical soil kuppe has the interval with the inner wall of microwave heating container, the extension cover mouth edge of inverted frustum shape soil kuppe and the inner wall seamless joint of microwave heating container, and the most advanced of conical soil kuppe is just to the shrink cover mouth of the inverted frustum shape soil kuppe that is located its top.
Furthermore, a plurality of vent holes which are uniformly distributed are formed in the conical soil air guide sleeve and the inverted-truncated-cone-shaped soil air guide sleeve.
The microwave heating device further comprises a microwave heating box and a blower, wherein a heat exchange tube is arranged in the microwave heating box, and the microwave heating box can heat the heat exchange tube; the air outlet end of the air blower is communicated with one end of the heat exchange tube, and the other end of the heat exchange tube is communicated with the inner bottom of the microwave heating container through an air inlet pipeline.
Furthermore, a plurality of filtering and adsorbing units are uniformly distributed in the sewage filtering and adsorbing tank from top to bottom; the filtering and adsorbing unit comprises a circular arc-shaped filtering and adsorbing plate and a circular arc-shaped water guide plate arranged right below the circular arc-shaped filtering and adsorbing plate, the circular arc-shaped filtering and adsorbing plate and the circular arc-shaped water guide plate have the same radian, and openings of the circular arc-shaped filtering and adsorbing plate and the circular arc-shaped water guide plate are arranged upwards; the two side box walls of the sewage filtering and adsorbing tank are respectively provided with a connecting plate, and the two high ends of the circular arc-shaped filtering and adsorbing plates are respectively fixedly connected with the connecting plates; the circular arc-shaped filtering and adsorbing plate comprises a double-layer filtering plate and an active carbon filling layer, and the active carbon filling layer is filled in an interlayer of the double-layer filtering plate; the short ends of the circular arc water guide plates are provided with two water guide channels, and the water outlet ends of the two water guide channels respectively extend to the two high ends of the circular arc filtering and adsorbing plate positioned below the two water guide channels.
Furthermore, the Y-shaped three-way water guide pipe comprises a main water guide pipe and two auxiliary water guide pipes which are mutually communicated, the main water guide pipe is communicated with the inner bottom of the second gas pollutant removing and stirring water tank, and a first control valve is arranged on the main water guide pipe; the water outlet ends of the two auxiliary water guide pipes extend to two high ends of the circular arc-shaped filtering and adsorbing plate respectively.
Further, gaseous pollutant gets rid of the stirring water tank and switches on its inside residual gas pipe that is provided with, the terminal of residual gas pipe extends to gaseous purification processing system.
A working method of soil remediation equipment comprises the following specific steps:
the method comprises the following steps: starting the blower, heating the heat exchange tube through the microwave heating box, and allowing outside normal-temperature air to enter the heat exchange tube for heat exchange to form hot air to enter the microwave heating container;
step two: conveying the soil to a microwave heating container through a soil input belt conveyor, enabling the soil to fall from the soil input belt conveyor and impact two right-angle triangular blocks, moving the two right-angle triangular blocks towards the cavity to open a feeding hole, and enabling the soil to enter the microwave heating container through the feeding hole to be heated and repaired;
the soil firstly falls on a first right-conical soil air guide sleeve, rolls along the first right-conical soil air guide sleeve and is divided, then falls on a first inverted circular truncated cone-shaped soil air guide sleeve and continues to roll, and the process is circulated, and finally the soil is discharged from a discharge hole of a microwave heating container to a soil output belt conveyor and is conveyed;
in the soil heating and repairing process, organic matters in the soil gradually volatilize, are carried by hot gas and are guided to a gas pollutant removal stirring water tank through a gas outlet pipeline;
step three: starting a stirring mechanism to stir the water in the gas pollutant removal stirring water tank, so that pollutants such as volatile organic compounds carried in the gas are dissolved and adsorbed in the water to form sewage; guiding the residual gas to a gas purification treatment system through a residual gas guide pipe to carry out gas purification treatment;
step four: opening a first control valve, guiding sewage in the gas pollutant removal stirring water tank to a sewage filtering and adsorbing tank through a Y-shaped three-way water guide pipe, shunting the sewage through two auxiliary water guide pipes of the Y-shaped three-way water guide pipe, then flowing to two high ends of an arc-shaped filtering and adsorbing plate, and slowly flowing down, wherein a double-layer filtering plate filters the sewage in the process to remove particle pollutants in the sewage, and an active carbon filling layer adsorbs the sewage to remove peculiar smell in the sewage;
the filtered and adsorbed water is gathered by the circular arc-shaped water guide plates, guided to the two high ends of the next circular arc-shaped filtering and adsorbing plate through the two water guide channels, and continuously filtered and adsorbed, and the process is repeated to form clear water, and the clear water is gathered at the last circular arc-shaped water guide plate and guided to the water storage tank through the two water guide channels.
Has the advantages that: the soil remediation equipment and the working method thereof have the beneficial effects that:
1) by heating the soil, organic matters in the soil are gradually volatilized in the heating process, so that the aim of effectively removing the organic matters in the soil is fulfilled, the organic matters are removed more thoroughly, and the soil remediation efficiency is improved;
2) the heating mode adopts microwave heating, the heating efficiency is higher, the operation is convenient, and the environmental pollution can be reduced to a certain extent;
3) under the drive of hot gas impact, the volatile organic compounds are taken away by the hot gas and are guided to the gas pollutant removal stirring water tank, so that pollutants in the gas are dissolved and adsorbed in the water in the gas pollutant removal stirring water tank, and then sewage purification treatment is carried out, thereby realizing the reasonable conversion of soil remediation into sewage purification treatment, greatly shortening the soil remediation period, and having good remediation effect and high efficiency;
4) the corresponding device structure of sewage filtration, adsorption treatment is comparatively unique, and filters and adsorbs and all carries out many times, guarantees that sewage filters, absorptive more thoroughly.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a filtering and adsorbing tank;
FIG. 3 is a cross-sectional view of a microwave heating vessel;
FIG. 4 is an enlarged view of a portion of A of FIG. 2;
FIG. 5 is a schematic structural view of the automatic spring door;
FIG. 6 is a schematic structural view of a right conical soil dome;
FIG. 7 is a schematic structural view of an inverted circular truncated cone shaped soil deflector.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1, the soil remediation equipment comprises a soil input belt conveyor 1, a soil output belt conveyor 2, a microwave heating container 5, a gas pollutant removal stirring water tank 3 and a sewage filtering and adsorbing tank 4;
the microwave heating container 5 is provided with a feeding hole 15 and a discharging hole 90, the soil input belt conveyor 1 is correspondingly arranged at the feeding hole 15 of the microwave heating container 5, the soil output belt conveyor 2 is correspondingly arranged at the discharging hole 90 of the microwave heating container 5, the microwave heating container 5 can heat and repair soil conveyed into the microwave heating container 5 through the soil input belt conveyor 1, a plurality of positive conical soil guide hoods 16 and a plurality of inverted frustum-shaped soil guide hoods 17 for soil rolling and guiding are arranged in the microwave heating container 5, organic matters are gradually volatilized in the heating process through a mode of heating the soil, the purpose of effectively removing the organic matters in the soil is achieved, the organic matters are removed more thoroughly, and the soil repairing efficiency is improved; the heating mode is microwave heating, the heating efficiency is high, the operation is convenient, and the environmental pollution can be reduced to a certain extent;
clear water is contained in the gas pollutant removing and stirring water tank 3, the inner top of the microwave heating container 5 is communicated with the inner bottom of the gas pollutant removing and stirring water tank 3 through a gas outlet pipeline 9, a plurality of stirring mechanisms 63 are arranged in the gas pollutant removing and stirring water tank 3 in a matched manner, gas doped with volatile organic pollutants is introduced into the clear water in the gas pollutant removing and stirring water tank 3, so that the organic pollutants in the gas are dissolved and adsorbed in the water, and then the sewage is purified, so that the aim of soil remediation is fulfilled;
the interior bottom that gaseous pollutant got rid of agitator tank 3 switches on through the interior top of Y type tee bend aqueduct 34 with sewage filtration adsorption tank 4, be provided with a plurality of filtration adsorption unit 70 in the sewage filtration adsorption tank 4, it is a plurality of filtration adsorption unit 70 can carry out filtration, absorption many times to the sewage through in Y type tee bend aqueduct 34 water conservancy diversion to water filtration adsorption tank 4, and sewage purification handles comparatively thoroughly, and is effectual, efficient.
As shown in fig. 1 and fig. 2, the feeding port 15 of the microwave heating container 5 is positioned at the top of the microwave heating container 5, and the soil output end of the soil input belt conveyor 1 is positioned at the feeding port 15; the feed inlet 15 is provided with the elasticity automatically-controlled door 20 in a supporting manner, by the soil striking that the closed feed inlet 15 accessible of elasticity automatically-controlled door 20 was exported the whereabouts from soil input band conveyer 1's soil output is opened, this kind of design of elasticity automatically-controlled door 20 is opened by soil striking when needs are opened, realizes automatic closure when need not open, does not need manual management completely or inserts other controlgear, simple structure, and the cost is lower, and the result of use is very good.
As shown in fig. 4 and 5, the elastic automatic door 20 includes a triangular prism rod 21, two right-angled triangular blocks 22 and two springs 23, cavities 30 are respectively disposed on inner walls of two sides of the feed port 15, the triangular prism rod 21 spans the feed port 15, two ends of the triangular prism rod 21 are respectively fixed to cavity bottoms of the two cavities 30, and one long edge of the triangular prism rod 21 faces upward and is disposed opposite to the feed port 15; the two right-angle triangular blocks 22 can be arranged on the triangular prism rod 21 in a sliding fit manner, and the inclined surfaces of the two right-angle triangular blocks 22 are arranged oppositely, so that the blocking effect of the triangular prism rod 21 on soil entering the microwave heating container 5 can be effectively relieved, and the soil can be prevented from being accumulated on the triangular prism rod 21; two the spring 23 is the symmetrical cover respectively on the pole portion of triangular prism pole 21 between the end of the chamber of right angle triangle piece 22 and cavity 30, every spring 23 all has resilience thrust, two right angle triangle piece 22 supports each other under the promotion of spring 23 that corresponds separately and leans on the V-arrangement door 24 that constitutes the opening just to feed inlet 15, and the V-arrangement door 24 of this kind of structure can open fast when soil striking, and the result of use is better.
As shown in fig. 2, the inner space of the microwave heating container 5 is cylindrical, and the right conical soil dome 16 and the inverted circular truncated cone soil dome 17 are alternately arranged from top to bottom inside the microwave heating container 5; the soil diversion cover 16 which is in a right circular cone shape is arranged closest to the feeding hole 15, and the tip end of the soil diversion cover 16 is opposite to the feeding hole 15, so that the soil entering the microwave heating container 5 from the feeding hole 15 can be guided and shunted.
The cover edge of conical soil kuppe 16 has interval 18 with the inner wall of microwave heating container 5, the extension cover mouth edge of inverted frustum shape soil kuppe 17 and the inner wall seamless joint of microwave heating container 5, and the most advanced of conical soil kuppe 16 is just to the shrink cover mouth of the inverted frustum shape soil kuppe 17 that is located its top.
As shown in fig. 6 and 7, the conical soil dome 16 and the inverted circular truncated cone-shaped soil dome 17 are both provided with a plurality of vent holes 19 which are uniformly distributed, the arrangement of the vent holes 19 can ensure that the soil is fully contacted with hot air, thereby accelerating the volatilization of organic matters in the soil, and the unique structure of the conical soil dome 16 and the inverted circular truncated cone-shaped soil dome 17 ensures that the organic matters volatilized from the soil are thoroughly taken away.
As shown in the attached figure 1, the microwave heating device also comprises a microwave heating box 6 and a blower 7, wherein a heat exchange pipe 10 is arranged in the microwave heating box 6, and the microwave heating box 6 can heat the heat exchange pipe 10; the air outlet end of the air blower 7 is communicated with one end of a heat exchange tube 10, and the other end of the heat exchange tube 10 is communicated with the inner bottom of the microwave heating container 5 through an air inlet pipeline 11.
As shown in fig. 3, in order to perform multiple filtering and adsorption of sewage to ensure thorough purification treatment of sewage, a plurality of filtering and adsorbing units 70 are uniformly distributed from top to bottom in the sewage filtering and adsorbing tank 4; the filtering and adsorbing unit 70 comprises an arc-shaped filtering and adsorbing plate 71 and an arc-shaped water guide plate 72 arranged right below the arc-shaped filtering and adsorbing plate 71, wherein the arc degrees of the arc-shaped filtering and adsorbing plate 71 and the arc-shaped water guide plate 72 are the same, and the openings of the arc-shaped filtering and adsorbing plate 71 and the arc-shaped water guide plate 72 are arranged upwards; the two side box walls of the sewage filtering and adsorbing tank 4 are respectively provided with a connecting plate 12, and two high ends of the circular arc filtering and adsorbing plate 71 are respectively fixedly connected with the connecting plates 12; the circular arc-shaped filtering and adsorbing plate 71 comprises a double-layer filtering plate 50 and an active carbon filling layer 51, wherein the active carbon filling layer 51 is filled in an interlayer of the double-layer filtering plate 50; the short end of the circular arc-shaped water guide plate 72 is provided with two water guide channels 80, the water outlet ends of the two water guide channels 80 respectively extend to the two high ends of the circular arc-shaped filtering and adsorbing plate 71 positioned below the two water guide channels 80, the circular arc-shaped filtering and adsorbing plate 71 is unique in structure, and by combining the design of the two water guide channels 80 on the circular arc-shaped water guide plate 72, sewage is guaranteed to flow into the low end from the high end of the circular arc-shaped filtering and adsorbing plate 71, the flow stroke of the sewage on the circular arc-shaped filtering and adsorbing plate 71 and the flowability of the sewage can be increased, the sewage filtering and adsorbing effects are good.
As shown in the attached figure 1, the bottom of the sewage filtering and adsorbing tank 4 is provided with a water collecting tank 8 communicated with the sewage filtering and adsorbing tank, the water collecting tank 8 is provided with a drain pipe 38, and the drain pipe 38 is provided with a second control valve 62.
As shown in fig. 3, the Y-shaped three-way water guiding pipe includes a main water guiding pipe 35 and two secondary water guiding pipes 40 which are communicated with each other, the main water guiding pipe 35 is communicated with the inner bottom of the second gas pollutant removing and stirring water tank 3, and a first control valve 61 is installed on the main water guiding pipe 35; the water outlet ends of the two auxiliary water guiding pipes 40 extend to two high ends of the circular arc filtering and adsorbing plate 71 respectively, so that the sewage is initially guided into the sewage filtering and adsorbing tank 4 and flows down from the two high ends of the circular arc filtering and adsorbing plate 71.
As shown in fig. 1, in order to avoid air pollution caused by direct gas discharge, the gas pollutant removal and stirring water tank 3 is communicated with a residual gas conduit 60 arranged inside the gas pollutant removal and stirring water tank, and the terminal of the residual gas conduit 60 extends to a gas purification treatment system.
A working method of soil remediation equipment comprises the following specific steps:
the method comprises the following steps: starting the blower 7, heating the heat exchange tube 10 through the microwave heating box 6, and allowing outside normal-temperature air to enter the heat exchange tube 10 for heat exchange to form hot air to enter the microwave heating container 5;
step two: soil is conveyed to the microwave heating container 5 through the soil input belt conveyor 1, the soil falls from the soil input belt conveyor 1 and impacts the two right-angle triangular blocks 22, the two right-angle triangular blocks 22 move towards the cavity 30 to open the feeding hole 15, and the soil enters the microwave heating container 5 through the feeding hole 15 to be heated and repaired;
the soil firstly falls on the first right-conical soil air guide sleeve 16, rolls along the first right-conical soil air guide sleeve and is divided, then falls on the first inverted circular truncated cone-shaped soil air guide sleeve 17, continues to roll, circulates in the way, and finally is discharged from a discharge hole 90 of the microwave heating container 5 to the soil output belt conveyor 2 to be conveyed;
in the soil heating and repairing process, organic matters in the soil gradually volatilize, are carried by hot gas and are guided to the gas pollutant removal stirring water tank 3 through the gas outlet pipeline 9;
step three: starting the stirring mechanism 63 to stir the water in the gas pollutant removal stirring water tank 3, so that pollutants such as volatile organic compounds carried in the gas are dissolved and adsorbed in the water to form sewage; the residual gas is guided to a gas purification treatment system through a residual gas guide pipe 60 to be subjected to gas purification treatment;
step four: opening the first control valve 36, guiding the sewage in the gas pollutant removal stirring water tank 3 to the sewage filtering and adsorbing tank 4 through the Y-shaped three-way water guide pipe 34, shunting the sewage through the two auxiliary water guide pipes 40 of the Y-shaped three-way water guide pipe 34, then flowing to the two high ends of the circular arc filtering and adsorbing plate 71, and slowly flowing down, wherein the sewage is filtered by the double-layer filter plate 50 in the process, so that particle pollutants in the sewage are removed, and the sewage is adsorbed by the activated carbon filling layer 51 so as to remove peculiar smell in the sewage;
the filtered and adsorbed water is collected by the circular arc-shaped water guide plates 72, guided to the two high ends of the next circular arc-shaped filtering and adsorbing plate 71 through the two water guide channels 80, and continuously filtered and adsorbed, and the process is repeated to form clear water, and the clear water is collected at the last circular arc-shaped water guide plate 72 and guided to the water storage tank 8 through the two water guide channels 80.
The invention has the following advantages:
5) by heating the soil, organic matters in the soil are gradually volatilized in the heating process, so that the aim of effectively removing the organic matters in the soil is fulfilled, the organic matters are removed more thoroughly, and the soil remediation efficiency is improved;
6) the heating mode adopts microwave heating, the heating efficiency is higher, the operation is convenient, and the environmental pollution can be reduced to a certain extent;
7) under the drive of hot gas impact, the volatile organic compounds are taken away by the hot gas and are guided to the gas pollutant removal stirring water tank, so that pollutants in the gas are dissolved and adsorbed in the water in the gas pollutant removal stirring water tank, and then sewage purification treatment is carried out, thereby realizing the reasonable conversion of soil remediation into sewage purification treatment, greatly shortening the soil remediation period, and having good remediation effect and high efficiency;
8) the corresponding device structure of sewage filtration, adsorption treatment is comparatively unique, and filters and adsorbs and all carries out many times, guarantees that sewage filters, absorptive more thoroughly.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A soil remediation device, characterized by: comprises a soil input belt conveyor (1), a soil output belt conveyor (2), a microwave heating container (5), a gas pollutant removal stirring water tank (3) and a sewage filtering and adsorbing tank (4);
the soil conditioning system is characterized in that the microwave heating container (5) is provided with a feeding hole (15) and a discharging hole (90), the soil input belt conveyor (1) is correspondingly arranged at the feeding hole (15) of the microwave heating container (5), the soil output belt conveyor (2) is correspondingly arranged at the discharging hole (90) of the microwave heating container (5), the microwave heating container (5) can heat and repair soil conveyed into the microwave heating container through the soil input belt conveyor (1), and a plurality of right conical soil guide covers (16) and a plurality of inverted circular truncated cone soil guide covers (17) for soil rolling and guiding are arranged in the microwave heating container (5);
clear water is contained in the gas pollutant removing and stirring water tank (3), the inner top of the microwave heating container (5) is communicated with the inner bottom of the gas pollutant removing and stirring water tank (3) through a gas outlet pipeline (9), and a plurality of stirring mechanisms (63) are arranged on the gas pollutant removing and stirring water tank (3) in a matched manner;
the inner bottom of the gas pollutant removing and stirring water tank (3) is communicated with the inner top of the sewage filtering and adsorbing tank (4) through a Y-shaped three-way water guide pipe (34), a plurality of filtering and adsorbing units (70) are arranged in the sewage filtering and adsorbing tank (4), and the plurality of filtering and adsorbing units (70) can filter and adsorb sewage which is guided into the water filtering and adsorbing tank (4) through the Y-shaped three-way water guide pipe (34) for multiple times;
the filtering and adsorbing units (70) are uniformly distributed in the sewage filtering and adsorbing tank (4) from top to bottom; the filtering and adsorbing unit (70) comprises a circular arc-shaped filtering and adsorbing plate (71) and a circular arc-shaped water guide plate (72) arranged right below the circular arc-shaped filtering and adsorbing plate (71), the circular arc-shaped filtering and adsorbing plate (71) and the circular arc-shaped water guide plate (72) have the same radian, and openings of the circular arc-shaped filtering and adsorbing plate and the circular arc-shaped water guide plate are arranged upwards; the two side box walls of the sewage filtering and adsorbing tank (4) are respectively provided with a connecting plate (12), and the two high ends of the circular arc-shaped filtering and adsorbing plate (71) are respectively fixedly connected with the connecting plates (12); the circular arc-shaped filtering and adsorbing plate (71) comprises a double-layer filtering plate (50) and an active carbon filling layer (51), and the active carbon filling layer (51) is filled in an interlayer of the double-layer filtering plate (50); the short end of the circular arc water guide plate (72) is provided with two water guide channels (80), and the water outlet ends of the two water guide channels (80) respectively extend to the two high ends of the circular arc filtering and adsorbing plate (71) positioned below the two water guide channels;
the Y-shaped three-way water guide pipe comprises a main water guide pipe (35) and two auxiliary water guide pipes (40) which are communicated with each other, the main water guide pipe (35) is communicated with the inner bottom of the second gas pollutant removing and stirring water tank (3), and a first control valve (61) is installed on the main water guide pipe (35); the water outlet ends of the two auxiliary water guide pipes (40) respectively extend to the two high ends of the circular arc-shaped filtering and adsorbing plate (71).
2. A soil remediation device according to claim 1, wherein: a feeding hole (15) of the microwave heating container (5) is positioned at the top of the microwave heating container (5), and a soil output end of the soil input belt conveyor (1) is positioned at the feeding hole (15); the feeding hole (15) is provided with an elastic automatic door (20) in a matched mode, and the feeding hole (15) closed by the elastic automatic door (20) can be opened through the impact of falling soil output from the soil output end of the soil input belt conveyor (1).
3. A soil remediation device according to claim 2, wherein: the elastic automatic door (20) comprises a triangular prism rod (21), two right-angled triangular blocks (22) and two springs (23), cavities (30) are respectively formed in the inner walls of two sides of the feed port (15), the triangular prism rod (21) stretches across the feed port (15), two ends of the triangular prism rod are respectively fixed with the bottoms of the two cavities (30), and one long edge of the triangular prism rod (21) faces upwards and is arranged opposite to the feed port (15); the two right-angle triangular blocks (22) can be arranged on the triangular prism rod (21) in a sliding fit mode, and the inclined surfaces of the two right-angle triangular blocks (22) are arranged oppositely; the two springs (23) are respectively and symmetrically sleeved on the rod part of the triangular prism rod (21) between the right-angle triangular blocks (22) and the cavity bottom of the cavity (30), each spring (23) has rebound thrust, and the two right-angle triangular blocks (22) are mutually abutted under the pushing of the corresponding springs (23) to form a V-shaped door (24) with an opening just facing the feed port (15).
4. A soil remediation device according to claim 3, wherein: the inner space of the microwave heating container (5) is cylindrical, and the right conical soil flow guide covers (16) and the inverted circular truncated cone-shaped soil flow guide covers (17) are alternately arranged in the microwave heating container (5) from top to bottom; the right conical soil diversion cover (16) is arranged closest to the feeding hole (15), and the tip end of the right conical soil diversion cover (16) is opposite to the feeding hole (15);
the cover edge of conical soil kuppe (16) has interval (18) with the inner wall of microwave heating container (5), the expansion cover mouth edge of inverted circular truncated cone shape soil kuppe (17) and the inner wall seamless joint of microwave heating container (5), and the most advanced shrink cover mouth just to being located the inverted circular truncated cone shape soil kuppe (17) of its top of conical soil kuppe (16).
5. A soil remediation device according to claim 4, wherein: the conical soil air guide sleeve (16) and the inverted-truncated-cone-shaped soil air guide sleeve (17) are both provided with a plurality of uniformly distributed vent holes (19).
6. A soil remediation device according to claim 4, wherein: the heat exchange device is characterized by further comprising a microwave heating box (6) and an air blower (7), wherein a heat exchange pipe (10) is arranged in the microwave heating box (6), and the microwave heating box (6) can heat the heat exchange pipe (10); the air outlet end of the air blower (7) is communicated with one end of the heat exchange tube (10), and the other end of the heat exchange tube (10) is communicated with the inner bottom of the microwave heating container (5) through an air inlet pipeline (11).
7. A soil remediation device according to claim 6, wherein: gaseous pollutant gets rid of stirring water tank (3) and switches on its inside residual gas pipe (60) that is provided with, the terminal of residual gas pipe (60) extends to gaseous purification processing system.
8. A method of operating a soil remediation device according to claim 7, wherein: the method comprises the following specific steps:
the method comprises the following steps: starting the blower (7), heating the heat exchange tube (10) through the microwave heating box (6), and allowing outside normal-temperature air to enter the heat exchange tube (10) for heat exchange to form hot air to enter the microwave heating container (5);
step two: soil is conveyed to the microwave heating container (5) through the soil input belt conveyor (1), the soil falls down from the soil input belt conveyor (1) and impacts the two right-angle triangular blocks (22), the two right-angle triangular blocks (22) move towards the cavity (30) to open the feeding hole (15), and the soil enters the microwave heating container (5) through the feeding hole (15) to be heated and repaired;
the soil firstly falls on a first right-circular cone-shaped soil air guide sleeve (16) and rolls along the first right-circular cone-shaped soil air guide sleeve and is divided, then falls on a first inverted circular truncated cone-shaped soil air guide sleeve (17) and continues to roll, and the soil is circulated in the way, and finally is discharged from a discharge hole (90) of a microwave heating container (5) to a soil output belt conveyor (2) to be conveyed;
in the soil heating and repairing process, organic matters in the soil gradually volatilize, are carried by hot gas and are guided to the gas pollutant removal stirring water tank (3) through the gas outlet pipeline (9);
step three: starting a stirring mechanism (63) to stir the water in the gas pollutant removal stirring water tank (3) so as to dissolve and adsorb pollutants such as volatile organic compounds and the like carried in the gas into the water to form sewage; the residual gas is guided to a gas purification treatment system through a residual gas guide pipe (60) to be subjected to gas purification treatment;
step four: opening a first control valve (36), guiding sewage in the gas pollutant removal stirring water tank (3) to a sewage filtering and adsorbing tank (4) through a Y-shaped three-way water guide pipe (34), shunting through two auxiliary water guide pipes (40) of the Y-shaped three-way water guide pipe (34), allowing the sewage to flow to two high ends of an arc-shaped filtering and adsorbing plate (71) and flow slowly, filtering the sewage by using a double-layer filter plate (50) in the process, removing particle pollutants in the sewage, adsorbing the sewage by using an activated carbon filling layer (51), and removing peculiar smell in the sewage;
the filtered and adsorbed water is gathered by the circular arc water guide plates (72), guided to the two high ends of the next circular arc filtering and adsorbing plate (71) through the two water guide channels (80), continuously filtered and adsorbed, and repeated to form clear water, and the clear water is gathered at the last circular arc water guide plate (72) and guided to the water storage tank (8) through the two water guide channels (80).
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