One kind repairs near surface contaminated soil deviceTechnical field
The invention belongs to the processing method of soil sanitation, and in particular to one kind repairs near surface contaminated soil device.
Background technology
Soil pollution refers to that the species and content of pollutant in soil have exceeded soil background values, and animals and plants are caused with woundEvil and the pollution situation of the healthy generation harm influence on the mankind.Soil pollution includes organic contamination and inorganic pollution twoMajor class, usual organic pollution under certain condition, structure letter is resolved into by forms such as the illumination of long period, biodegradationsSingle inorganic matter, the i.e. referred to as self-purification capacity of soil.So as social continuing to develop, because polluter enters soilContent and speed are being continuously increased, and only by the self-purification capacity of soil, are extremely difficult to requirement of the people for soil cleanliness factor.Contaminated soil, on the one hand planting plants, crops in contaminated soil, in harvesting grain, in the presence of certain pollutant；AndDue to the pollution of soil, for the cleanliness factor of underground water, also in the presence of certain threat；Potential safety hazard hence for people is causedCertain influence.
The physical method for generally using, isolates pollutant in soil, then pollutant is vaporized or is divided by high temperatureSolution.But the method cost is very high, but also air can be polluted.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of reparation near surface contaminated soil device, and the device is solvedDuring using peripheral doses for soil pollution prior art, its high cost, cause to air certain pollution etc. above-mentionedThe problem of presence.
The technical problems to be solved by the invention are realized using following technical scheme：
One kind repairs near surface contaminated soil device, including some primary heaters；The device also includes some metallic plates,The metallic plate is placed near surface, and adjacent metal sheets are coupled together by solder technology, and covering part contaminated soil tableFace；Some through holes are uniformly provided with wherein described metallic plate, and the primary heater inserts pollution by through hole on metallic plateIn soil, and primary heater top, using film sealing, film top is provided with insulation board.
The present invention further improvement is that：The device also includes secondary heater, and the secondary heater located at pollutionBetween soil near surface and metallic plate.
The present invention further improvement is that：The device also includes secondary heater, and the secondary heater is located at metalPlate top.
The present invention further improvement is that：The device also includes sleeve, and the sleeve is inserted by through hole on metallic plateIn contaminated soil；Wherein described primary heater is placed in sleeve inner.
The present invention further improvement is that：Thermal insulation layer is set on metallic plate.
The present invention further improvement is that：Rain cover is set on metallic plate.
The present invention further improvement is that：The metal-sheet edges sealing.
The present invention further improvement is that：The sealing of metal-sheet edges connects sealing using fastener；And fastener and metallic plateBetween place packing ring.
The present invention further improvement is that：Metal-sheet edges go deep into soil realizing the sealing of metal-sheet edges.
The beneficial effects of the invention are as follows：The prosthetic device uses in-situ remediation method, because the low-pressure state in soil canPreferably to remove pollutant.Face seal is prevented air from entering by it, using steam heating soil, is steamed more steaminessIssue, remove pollutant；The air capacity of appropriateness is kept, soil is reached most suitable reparation temperature；Ensure to form low pressure in soilState.Soil remediation is carried out using the device, its low cost, economical and efficient.
Brief description of the drawings
Fig. 1 is metal sheet plane structural representation of the present invention.
Fig. 2 is the cross section structure diagram of joint between adjacent metal sheets of the present invention.
Fig. 3 is metal-sheet edges cross section structure diagram of the present invention.
Fig. 4 is secondary heater of the present invention located at the structural representation between contaminated soil near surface and metallic plate.
Fig. 5 is structural representation of the secondary heater of the present invention above metallic plate.
Wherein：1- metallic plates, 2- through holes, 3- fasteners, 4- packing rings, 5- secondary heaters, 6- films, 7- insulation boards, 8-One heater, 9- sleeves.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie belowConjunction is specifically illustrating, and the present invention is expanded on further.
As shown in Figures 1 to 4, it is a kind of to repair near surface contaminated soil device, including some primary heaters 8；The device is alsoIncluding some metallic plates 1, the metallic plate 1 is placed near surface, and adjacent metal sheets 1 are coupled together by solder technology, andCovering part contaminated soil surface；Some through holes 2 are uniformly provided with wherein described metallic plate 1, and the primary heater 8 passes throughOn metallic plate 1 in the insertion of through hole 2 contaminated soil, and the top of the primary heater 8 is sealed using film 6, then can be from surface(obstruction heating process) can enter soil and prevent water from entering soil；The top of film 6 is provided with insulation board 7, you can reduce systemThermal loss.
The device also includes secondary heater 5, and the secondary heater 5 located at contaminated soil near surface and metallic plate 1Between.
The device also includes sleeve 9, and the sleeve 9 by the insertion of through hole 2 contaminated soil on metallic plate 1；Wherein institutePrimary heater 8 is stated to be placed in inside sleeve 9.
Thermal insulation layer (not shown) is set on metallic plate 1.
Rain cover (not shown) is set on metallic plate 1.
The edge seal of the metallic plate 1；The sealing at the edge of metallic plate 1 connects sealing using fastener 3；And fastener 3 and metalPacking ring 4 is placed between plate 1.
As shown in Fig. 1,2,3 and 5, in another specific embodiment of the device, the secondary heater 5 is located at metallic plate 1Top.The edge of metallic plate 1 gos deep into soil realizing the sealing at the edge of metallic plate 1.
The present invention provides a kind of reparation near surface contaminated soil device, and the prosthetic device uses in-situ remediation method, due toLow-pressure state in soil can preferably remove pollutant.Face seal is prevented air from entering by it, and soil is heated using steamEarth, more steaminess is evaporated, remove pollutant；The air capacity of appropriateness is kept, soil is reached most suitable reparation temperature；ProtectLow-pressure state is formed in card soil.Soil remediation is carried out using the device, its low cost, economical and efficient.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry shouldUnderstand, the present invention is not limited to the above embodiments, simply original of the invention is illustrated described in above-described embodiment and specificationReason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvementsAll fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent circle.It is fixed.