CN215089738U - A divide sieve device for dystopy is restoreed and is polluted soil - Google Patents
A divide sieve device for dystopy is restoreed and is polluted soil Download PDFInfo
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- CN215089738U CN215089738U CN202120871161.3U CN202120871161U CN215089738U CN 215089738 U CN215089738 U CN 215089738U CN 202120871161 U CN202120871161 U CN 202120871161U CN 215089738 U CN215089738 U CN 215089738U
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Abstract
The utility model discloses a screening device for ex-situ remediation of contaminated soil, which comprises a cylindrical shell, wherein an inlet is arranged on the cylindrical shell; the cylindrical shell is internally provided with a first screening disc and a second screening disc, and the screening grain size of the first screening disc is larger than that of the second screening disc; the first screening disc and the second screening disc are distributed up and down to divide the interior of the cylindrical shell into a first cavity, a second cavity and a third cavity; the cylindrical shell is internally provided with a vertically arranged stirring column which passes through the first screening disc and the second screening disc; stirring blades are arranged on the stirring columns in the first cavity and the second cavity; the cylindrical shell is provided with a first outlet, a second outlet and a third outlet, and the first outlet, the second outlet and the third outlet are sequentially distributed at the first cavity, the second cavity and the third cavity; the utility model discloses the realization carries out meticulous division with the soil of gravel in the place, brick and different particle diameters, and the gravel that will not receive the pollution separates with the brick, reduces and restores soil transportation volume, and through soil moisture content management and control, reduce soil weight simultaneously, save the cost of transportation.
Description
Technical Field
The utility model relates to a divide sieve device for dystopy is restoreed and is polluted soil for the screening pollutes soil.
Background
China is one of countries with serious soil heavy metal pollution, particularly in recent years, the rapid development of economy brings heavy metal pollution to soil, and the heavy metal pollution is more and more a prominent problem facing economic development and environmental protection. In recent 20 years, under the support of the national '863' project and the like, the research on the soil pollution remediation technology in China starts from 'fifteen', 'eleven and five' progress, 'twelve and five' development and 'thirteen and five' leap; the development of 20 years drives the application of soil remediation technology and the development of green remediation industrialization, and the distance from advanced countries on remediation technology, equipment and large-scale application is shortened. Generally, in the aspect of construction land, the soil pollution control and restoration technology level of China is far away from that of European and American countries. In 2019, urban industrial site repair projects are still mainstream, the total number of the projects is 153, 63.75% of the total number accounts for the contract amount, and the urban industrial site repair is far ahead.
In the aspect of the selection of the pollution remediation technology, the technology can be divided into an in-situ remediation technology and an ex-situ remediation technology, wherein the ex-situ soil remediation technology refers to a soil remediation technology in which contaminated soil is excavated or extracted from an original place where the contaminated soil is polluted, and is transported or transferred to other places or positions for treatment and remediation. The ectopic soil remediation technology mainly comprises ectopic landfill, ectopic solidification, an ectopic chemical leaching method, ectopic chemical solidification stabilization, ectopic heat treatment, a series of ectopic bioremediation methods and the like.
The advantages of the ectopic repair technology are that: the method is suitable for treating the sites with higher pollution concentration, higher risk and not large polluted soil amount, can select a direct and effective technical method to treat the polluted soil in a centralized manner, has high and thorough treatment efficiency, is easy to control in the aspect of monitoring, can reduce the monitoring cost, and is suitable for repairing the soil of the urban industrial land with more projects and larger contract amount at present.
The disadvantages of the ectopic repair technology are: contaminated soil needs to be transported to a treatment site, transportation cost is increased, and pollutants are in risk of diffusion in the processes of excavation, transportation and transfer, so that the diffusion of the pollutants needs to be strictly controlled, and the influence on the environment and human bodies is prevented.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a divide sieve device for soil is polluted in dystopy restoration is provided, the meticulous division of soil is polluted in the realization.
In order to solve the technical problem, the screening device for ex-situ remediation of contaminated soil comprises a cylindrical shell, wherein an inlet is formed in the cylindrical shell; the cylindrical shell is internally provided with a first screening disc and a second screening disc, and the screening particle size of the first screening disc is larger than that of the second screening disc; the first screening disc and the second screening disc are distributed up and down to divide the interior of the cylindrical shell into a first cavity, a second cavity and a third cavity; the cylindrical shell is internally provided with a vertically arranged stirring column, and the stirring column penetrates through the first screening disc and the second screening disc; stirring blades are arranged on the stirring columns in the first cavity and the second cavity; the cylindrical shell is provided with a first outlet, a second outlet and a third outlet, and the first outlet, the second outlet and the third outlet are sequentially distributed at the first cavity, the second cavity and the third cavity.
In order to control the water content of the soil, the cylindrical shell is provided with three heating and air supply devices which are sequentially distributed at the first cavity, the second cavity and the third cavity, and the heating and air supply devices are arranged on the cylindrical shell through a heat insulation layer.
In order to collect organic gas, dust and vapor volatilized by stirring, the cylindrical shell is provided with a gas collecting pipe, and the gas collecting pipe is positioned at the first cavity. In order to adsorb and treat the collected gas, the gas collecting pipe is connected with a gas collecting box, and activated carbon or a drying agent is arranged in the gas collecting box. In order to realize collection control, a control valve is arranged on the gas collecting pipe and can be controlled by a control switch.
Specifically, both ends of the stirring column are mounted on the cylindrical shell through a screw and a nut.
In order to conveniently adjust and control the temperature and the wind, a display and touch panel for control and display is arranged on the cylindrical shell.
To the problem that soil processing stage exists before soil remediation, the utility model discloses the realization carries out meticulous division with gravel in the place, brick and the soil of different particle diameters, and the gravel that will not receive the pollution separates with the brick, reduces and restores soil transportation volume, and through soil moisture content management and control, reduce soil weight, save the cost of transportation simultaneously. The utility model discloses it has gaseous collection still to increase, is applicable to heavy metal contaminated soil and organic contaminated soil, reduces the diffusion risk that exists before soil transportation and restoration.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in figure 1, the screening device for ex-situ remediation of contaminated soil comprises a cylindrical shell 1, wherein an inlet 2 is arranged on the cylindrical shell 1 and used for throwing soil to be screened.
The cylindrical shell 1 is internally provided with a first screening disc 6 and a second screening disc 7, the screening particle size of the first screening disc 6 is larger than that of the second screening disc 7, specifically, the screening particle size of the first screening disc 6 is 50-80mm, and the screening particle size of the second screening disc 7 is 10-20 mm. The first screening plate 6 and the second screening plate 7 are distributed up and down to divide the interior of the cylindrical shell 1 into a first cavity 11, a second cavity 12 and a third cavity 13.
Have the stirring column 9 of vertical setting in the tube-shape casing 1, the both ends of stirring column 9 are all installed on tube-shape casing 1 (both ends from top to bottom) through screw rod 92 and nut 91, stirring column 9 passes first screening dish 6, second screening dish 7, in first cavity 11, second cavity 12, all install stirring fan blade 94 through connecting piece 93 on the stirring column 9.
The cylindrical shell 1 is provided with a first outlet 4, a second outlet 5 and a third outlet 8, and the first outlet 4, the second outlet 5 and the third outlet 8 are sequentially distributed at a first cavity 11, a second cavity 12 and a third cavity 13, so that screened soil and the like can be discharged.
In order to control the water content of the soil, the cylindrical shell 1 is provided with three heating and air supply devices 10, the three heating and air supply devices 10 are sequentially distributed at a first cavity 11, a second cavity 12 and a third cavity 13, and the heating and air supply devices 10 are installed on the cylindrical shell 1 through a heat insulation layer 101.
In order to collect the organic gas, dust and water vapor volatilized by stirring, the cylindrical shell 1 is provided with a gas collecting pipe 31, and the gas collecting pipe 31 is positioned at the first cavity 11. In order to adsorb the collected gas, the gas collecting pipe 31 is connected with a gas collecting tank 3, and the gas collecting tank 3 is internally provided with activated carbon or desiccant 33. In order to realize the collection control, the gas collecting pipe 31 is provided with a control valve 32, which can be controlled by a control switch.
In order to facilitate temperature and wind regulation control, a display and touch panel 102 for control is provided on the cylindrical casing 1, and the display and touch panel 102 may be attached through a heat insulating layer 101.
The method comprises the following steps:
(1) the contaminated soil enters the first cavity 11 of the cylindrical shell from the inlet 1 of the cylindrical shell.
(2) The stirring column 9 rotates to drive the stirring blades 94 to rotate and stir.
(3) Soil and gravel with the particle size of less than 50-80mm fall to the second cavity 12 through the first screening disc 6, and soil and gravel which do not pass through the first screening disc are screened out of the cylindrical shell through the first outlet 4 for subsequent disposal.
(4) The soil and the gravel screened from the first cavity 11 are continuously stirred in the second cavity 12 through the stirring column 9 and the fan blades 94, the soil and the gravel with the particle size of less than 10-20mm fall to the third cavity 13 through the second screening disc 7, and the soil and the gravel with the particle size of more than 10-20mm are screened out of the cylindrical shell through the second outlet 5 for subsequent disposal.
(5) And (4) screening the soil water content screened to the third cavity 13 out of the device through a third outlet 8 after the soil water content meets the requirement of subsequent treatment, and bagging the soil for subsequent treatment.
The gas collecting device and the heating air supply device 10 are operated according to the soil pollution condition and the soil moisture content condition. Determining the pollution type of the polluted soil before construction, wherein if the polluted soil is only polluted by heavy metal, the main function of the gas collecting pipe is to collect dust and water vapor; if the pollution type includes organic pollution, the main function of the gas collecting pipe 31 is to adsorb organic gas, dust and water vapor volatilized out by stirring. The gas collecting pipe 31 can be controlled to be on or off through the control valve 32, and when the gas collecting pipe 31 is communicated with the gas collecting box 3, 33 activated carbon or drying agent in the gas collecting box starts to adsorb, stir and release organic gas, dust and water vapor.
The heating and air-supplying device 10 can adjust the temperature and the wind power according to the subsequent treatment requirement of the polluted soil, the power supply is started after the display and touch panel 102 is touched, the display and touch panel 102 can display the current temperature, the wind power and the numerical control operation keys, and the heating temperature and the heating time are set through the display and touch panel 102; and in actual operation, controlling the water content of the soil according to the adjustment of temperature and time until the water content of the soil meets the treatment requirement, and screening the soil out of the cylindrical shell 1.
The above-mentioned embodiment does not limit the utility model in any way, and all the technical solutions that adopt the mode of equivalent replacement or equivalent transform to obtain all fall within the protection scope of the utility model.
Claims (8)
1. The screening device for ex-situ remediation of the contaminated soil is characterized by comprising a cylindrical shell, wherein an inlet is formed in the cylindrical shell; the cylindrical shell is internally provided with a first screening disc and a second screening disc, and the screening particle size of the first screening disc is larger than that of the second screening disc; the first screening disc and the second screening disc are distributed up and down to divide the interior of the cylindrical shell into a first cavity, a second cavity and a third cavity; the cylindrical shell is internally provided with a vertically arranged stirring column, and the stirring column penetrates through the first screening disc and the second screening disc; stirring blades are arranged on the stirring columns in the first cavity and the second cavity; the cylindrical shell is provided with a first outlet, a second outlet and a third outlet, and the first outlet, the second outlet and the third outlet are sequentially distributed at the first cavity, the second cavity and the third cavity.
2. A screening apparatus for ex-situ remediation of contaminated soil according to claim 1, wherein: the cylindrical shell is provided with three heating and air supply devices which are sequentially distributed at the first cavity, the second cavity and the third cavity.
3. A screening apparatus for ex-situ remediation of contaminated soil according to claim 2, wherein: the heating air supply device is arranged on the cylindrical shell through a heat insulation layer.
4. A screening apparatus for ex-situ remediation of contaminated soil according to claim 1, wherein: the cylindrical shell is provided with a gas collecting pipe, and the gas collecting pipe is positioned at the first cavity.
5. A screening device for ex-situ remediation of contaminated soil according to claim 4, wherein: the gas collecting pipe is connected with a gas collecting box, and activated carbon or drying agents are arranged in the gas collecting box.
6. A screening device for ex-situ remediation of contaminated soil according to claim 5, wherein: and the gas collecting pipe is provided with a control valve.
7. A screening apparatus for ex-situ remediation of contaminated soil according to claim 1, wherein: and two ends of the stirring column are both arranged on the cylindrical shell through a screw and a nut.
8. A screening apparatus for ex-situ remediation of contaminated soil according to claim 1, wherein: and a display and touch panel is arranged on the cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120871161.3U CN215089738U (en) | 2021-04-26 | 2021-04-26 | A divide sieve device for dystopy is restoreed and is polluted soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120871161.3U CN215089738U (en) | 2021-04-26 | 2021-04-26 | A divide sieve device for dystopy is restoreed and is polluted soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215089738U true CN215089738U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120871161.3U Active CN215089738U (en) | 2021-04-26 | 2021-04-26 | A divide sieve device for dystopy is restoreed and is polluted soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215089738U (en) |
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2021
- 2021-04-26 CN CN202120871161.3U patent/CN215089738U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 400050 No. 4-5, building 1, No. 66, Kecheng Road, Jiulongpo District, Chongqing Patentee after: Lversheng (Chongqing) Environmental Technology Co.,Ltd. Address before: 400050 No. 4-5, building 1, No. 66, Kecheng Road, Jiulongpo District, Chongqing Patentee before: Zhongli environmental protection (Chongqing) Co.,Ltd. |
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