CN113732050A - Contaminated soil solidification and stabilization treatment system and process - Google Patents
Contaminated soil solidification and stabilization treatment system and process Download PDFInfo
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- CN113732050A CN113732050A CN202111068029.XA CN202111068029A CN113732050A CN 113732050 A CN113732050 A CN 113732050A CN 202111068029 A CN202111068029 A CN 202111068029A CN 113732050 A CN113732050 A CN 113732050A
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- 239000002689 soil Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007711 solidification Methods 0.000 title claims abstract description 25
- 230000008023 solidification Effects 0.000 title claims abstract description 25
- 230000006641 stabilisation Effects 0.000 title claims abstract description 23
- 238000011105 stabilization Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 110
- 238000002156 mixing Methods 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 239000007787 solid Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000012423 maintenance Methods 0.000 claims abstract description 15
- 239000004575 stone Substances 0.000 claims abstract description 8
- 239000002699 waste material Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims 9
- 238000005259 measurement Methods 0.000 claims 4
- 238000007781 pre-processing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 239000010814 metallic waste Substances 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
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- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
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- 231100000719 pollutant Toxicity 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
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- 239000011230 binding agent Substances 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
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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
- B09C1/08—Reclamation of contaminated soil chemically
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A system and a process for solidifying and stabilizing polluted soil comprise a soil pretreatment device, a mixing device, a solid medicament storage device, a liquid medicament blending device, a solidifying device and a maintenance device; the soil pretreatment device screens off stones in the polluted soil and conveys the screened soil to the mixing device; the solid medicament storage device conveys the solid medicament to the mixing device according to the proportion; the mixing device is used for mixing the screened soil and the solid medicament; the liquid medicament blending device is used for blending liquid medicaments and water according to the proportion and conveying the liquid medicaments and the water to the curing device; the curing device is used for curing the soil for a certain time and then sending the soil to the curing device; and the curing device cures the cured soil material in the curing box. The invention has the technical effects of adjustable treatment capacity, continuous production and good heavy metal waste residue solidification and stabilization effect, and can be used for a solidification and stabilization process of polluted soil in a laboratory and a medicament proportioning test, and can also be used for a soil treatment project of a polluted site.
Description
Technical Field
The invention belongs to the technical field of contaminated site remediation, and particularly relates to a contaminated soil solidification and stabilization treatment system and process.
Background
In recent years, with the deep advance of the adjustment of industrial structures in China, a large number of industrial enterprises are shut down and turned over, bankruptcy or relocation, the remaining polluted sites are developed and utilized again as urban construction sites, and the potential safety hazard of the environment is prominent. The state has been a great deal of policy and policy, and the organization is required to carry out the treatment and restoration work of the pollution site according to local conditions under the leadership of the local government, and the pollution site can be put into use after the treatment, restoration and monitoring reach the standard.
Solidification stabilization is a technique in which contaminated soil is mixed with a binder that coalesces into a solid, thereby capturing or immobilizing the contaminant within the solid structure. The solidification is that no chemical reaction occurs between the polluted soil and the DIAN caking agent, and only the pollutant is mechanically wrapped in a solidified body with a complete structure to isolate the connection between the polluted soil and the external environment, thereby achieving the purpose of controlling the migration of the pollutant. The solidification technique involves encapsulating the contaminants to form a solidified body that prevents migration of the contaminants by reducing the surface area exposed to percolation or encapsulating the waste with a material having a low permeability coefficient for the purpose of isolating the waste from the environment. Solidification is achieved by mechanical processes or chemical reactions between the waste and solidifying agents like cement, furnace dust, lime and fly ash. Solidifying fine waste particles is a micro-encapsulation process, whereas solidifying large waste particles involves macro-encapsulation. Stabilization refers to the conversion of a contaminant into a less soluble, migratory or toxic form to render it harmless and reduce the risk of harm to the ecosystem. Stabilization involves a process involving a chemical reaction to reduce the leachability of the waste. Stabilization achieves immobilization by reacting chemically with hazardous waste or by reducing the solubility of the waste through a chemical reaction. During the stabilization process, the physical properties of the waste may change or not change during the process. Curing and stabilization are sometimes used independently and sometimes simultaneously.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention, and it is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The invention aims to provide a soil solidification and stabilization treatment system which can be used for a solidification and stabilization process and a medicament proportioning test of polluted soil in a laboratory and can also be used for a soil treatment project of a polluted site.
The invention provides a contaminated soil solidification and stabilization treatment system, which comprises a soil pretreatment device, a mixing device, a solid medicament storage device, a liquid medicament blending device, a solidification device and a maintenance device, wherein the soil pretreatment device is connected with the mixing device; wherein,
the soil pretreatment device is used for screening stones in the polluted soil and conveying the screened soil to the mixing device;
the solid medicament storage device is used for conveying the solid medicament to the mixing device according to the proportion;
the mixing device receives the screened soil and the solid medicament and performs mixing treatment on the screened soil and the solid medicament;
the liquid medicament blending device is used for blending liquid medicaments and water according to the proportion and conveying the liquid medicaments and the water to the curing device;
the curing device respectively receives the soil conveyed by the mixing device and the liquid medicament conveyed by the liquid medicament blending device, and the soil is cured for a certain time and then conveyed to the maintenance device;
and the curing device cures the cured soil material in the curing box.
As a specific improvement, the soil pretreatment device comprises a bucket elevator 1, a material storage bin 2, a star-shaped discharger 3, a three-way material distributing valve 4 and a linear vibrating screen 5, wherein the bucket elevator 1 is located right above the material storage bin 2, the star-shaped discharger 3 is arranged on the lower portion of the material storage bin 2, the star-shaped discharger 3 is connected with the three-way material distributing valve 4, the three-way material distributing valve 4 can convey soil to the linear vibrating screen 5, and the linear vibrating screen 5 is used for screening out stones in the soil.
As a specific improvement, the soil pretreatment device further comprises a screw conveyor 6 and a soil metering bin 7, the screened soil is conveyed to the soil metering bin 7 by the screw conveyor 6, and the soil metering bin 7 is used for metering the weight of the soil and then conveying the soil to the mixing device.
As a specific improvement, the soil pretreatment apparatus further includes a waste pipe 15 for discharging soil that is not used after the screening, from the waste pipe 15.
As a specific improvement, the solid medicament storage device comprises a solid medicament metering bin 8, and the solid medicaments are conveyed from the solid medicament metering bin 8 to the mixing device according to the proportion and are uniformly mixed.
As a specific improvement, the mixing device is a solids mixing silo 9.
As a specific improvement, the liquid medicament preparing device comprises a liquid medicament storage tank 11, a water tank 12 and a liquid medicament mixing tank 10, wherein the liquid medicament storage tank 11 and the water tank 12 are provided with metering pumps, and liquid medicament and water are pumped from the liquid medicament storage tank 11 and the water tank 12 to the liquid medicament mixing tank 10 according to the proportion respectively and are uniformly mixed.
As a specific improvement, the solidifying device is a double-roller spiral stirrer 14 which is provided with independent solid and liquid feeding ports, liquid medicament is sprayed on the solid, and the material after being stirred for a certain time is sent to the curing device by a discharging trolley 16.
As a specific improvement, the maintenance device comprises a forming mold and a constant temperature and humidity maintenance box 13, the solidified soil material is filled into the forming mold, and then the mold is placed into the constant temperature and humidity maintenance box 13 for maintenance for a specified time.
The invention also provides a contaminated soil solidification and stabilization treatment process, which comprises the following steps:
firstly, pouring polluted soil into a bucket elevator 1, conveying the soil to a material storage bin 2 by the bucket elevator 1, conveying the soil into a linear vibrating screen 5 through a star-shaped discharger 3 and a three-way material distributing valve 4 below the material storage bin 2, conveying the screened soil into a soil metering bin 7 by a screw conveyor 6, metering the weight of the soil, and then conveying the soil into a solid mixing bin 9;
secondly, conveying the solid medicament from the solid medicament metering bin 8 to the solid mixing bin 9 according to the proportion and uniformly mixing;
thirdly, conveying the soil from the solid mixing bin 9 to a double-roller screw mixer 14, simultaneously pumping the liquid medicament in the liquid medicament storage tank 11 and the water in the water tank 12 into the liquid medicament mixing tank 10 by a metering pump according to the proportion, uniformly mixing, and then conveying and spraying the mixture from the liquid medicament mixing tank 10 onto the materials in the double-roller screw mixer 14;
fourthly, the materials in the double-roller spiral stirrer 14 are stirred for a certain time and then are sent to a curing device by the discharging trolley 16;
and fifthly, filling the soil solidified and cemented by the solid medicament and the liquid medicament into a forming mold for forming, then putting the mold into a constant temperature and humidity curing box 13 for curing for a specified time, and demolding for further comprehensive utilization.
Compared with the prior art, the invention has the beneficial effects that: the soil solidification and stabilization treatment system can realize accurate dosing and uniform stirring of the medicament in the soil solidification and stabilization process, thereby ensuring the treatment effect and maximizing the economy. Meanwhile, the invention has the characteristics of adjustable treatment capacity, continuous production and good heavy metal waste residue solidification and stabilization effect, and can be used for a solidification and stabilization process of laboratory polluted soil and a medicament proportioning test, and can also be used for a polluted site soil treatment project.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the technical contents disclosed in the present invention.
Fig. 1 is a schematic structural view of a soil solidification and stabilization treatment system according to an embodiment.
1-bucket elevator; 2-material storage; 3-a star discharger; 4-three-way material distributing valve; 5-linear vibrating screen; 6-a screw conveyor; 7-soil measuring bin; 8-solid medicament metering bin; 9-solid mixing bin; 10-liquid medicament mixing tank; 11-liquid medicament reservoir; 12-a water tank; 13-constant temperature and humidity curing box; 14-two-roll screw mixer; 15-a waste conduit; 16-discharge trolley.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present invention and to simplify description, and do not indicate or imply that the referenced device, component, or structure must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention discloses a soil solidification treatment system which comprises a soil pretreatment device, a mixing device, a solid medicament storage device, a liquid medicament blending device, a solidification device and a maintenance device, wherein the soil pretreatment device is connected with the mixing device; wherein,
the soil pretreatment device is used for screening stones in the polluted soil and conveying the screened soil to the mixing device;
the solid medicament storage device is used for conveying the solid medicament to the mixing device according to the proportion;
the mixing device receives the screened soil and the solid medicament and performs mixing treatment on the screened soil and the solid medicament;
the liquid medicament blending device is used for blending liquid medicaments and water according to the proportion and conveying the liquid medicaments and the water to the curing device;
the curing device respectively receives the soil conveyed by the mixing device and the liquid medicament conveyed by the liquid medicament blending device, and the soil is cured for a certain time and then conveyed to the maintenance device;
and the curing device cures the cured soil material in the curing box.
The soil solidification treatment system can be used for a laboratory contaminated soil solidification stabilization process and a medicament proportioning test, and can also be used for contaminated site soil treatment engineering.
As shown in fig. 1, the soil pretreatment device comprises a bucket elevator 1, a material storage bin 2, a star-shaped discharger 3, a three-way material separating valve 4, a linear vibrating screen 5, a screw conveyor 6 and a soil measuring bin 7, wherein the bucket elevator 1 is positioned right above the material storage bin 2, the star-shaped discharger 3 is arranged on the lower portion of the material storage bin 2, the star-shaped discharger 3 is connected with the three-way material separating valve 4, the three-way material separating valve 4 can convey soil to the linear vibrating screen 5, and the linear vibrating screen 5 is used for screening out stones in the soil. The screened soil is conveyed to a soil metering bin 7 by a screw conveyor 6, and the soil metering bin 7 is used for metering the weight of the soil and then conveying the soil to a mixing device. The soil pretreatment apparatus further includes a waste pipe 15 for discharging soil, which is not used after the screening, from the waste pipe 15.
With continued reference to fig. 1, the solid medicament storage device includes a solid medicament metering bin 8, and the solid medicament is conveyed from the solid medicament metering bin 8 to the mixing device according to the ratio and is uniformly mixed. The mixing device is a solid mixing bin 9.
With continued reference to fig. 1, the liquid medicine preparing apparatus includes a liquid medicine storage tank 11, a water tank 12 and a liquid medicine mixing tank 10, wherein the liquid medicine storage tank 11 and the water tank 12 have metering pumps, and the liquid medicine and the water are pumped from the liquid medicine storage tank 11 and the water tank 12 to the liquid medicine mixing tank 10 according to the ratio respectively and are uniformly mixed.
The solidifying device is a double-roller spiral stirrer 14 which is provided with independent solid and liquid feeding ports, liquid medicament is sprayed on the solid, and the material after being stirred for a certain time is sent to a curing device by a discharging trolley 16.
The curing device comprises a forming die and a constant temperature and humidity curing box 13, the cured soil material is loaded into the forming die, and then the die is placed into the constant temperature and humidity curing box 13 for curing for a specified time.
The principle of the solidification and stabilization treatment process of the polluted soil is as follows:
the method comprises the following steps of pouring polluted soil into a bucket elevator 1, conveying the soil to a material storage bin 2 by the bucket elevator 1, realizing short-term storage of the soil by the material storage bin 2, enabling the soil to enter a linear vibrating screen 5 through a star discharger 3 and a three-way material distributing valve 4 below the material storage bin 2, setting the size of a screen hole as required, screening out stones in the soil, conveying the screened soil to a soil metering bin 7 by a screw conveyor 6, metering the weight of the soil, and then conveying the soil to a solid mixing bin 9; the screened soil can be discharged from the waste pipe 15 if it is not used.
The solid medicament is conveyed from the solid medicament metering bin 8 to the solid mixing bin 9 according to the proportion and is uniformly mixed;
then the soil is conveyed from the solid mixing bin 9 to a double-roll screw mixer 14 for mixing, meanwhile, a metering pump pumps the liquid medicament in the liquid medicament storage tank 11 and the water in the water tank 12 from the liquid medicament storage tank 11 and the water tank 12 according to the proportion to the liquid medicament mixing tank 10 for uniform mixing, and then the soil is conveyed from the liquid medicament mixing tank 10 and sprayed on the materials in the double-roll screw mixer 14;
after the materials in the double-roller spiral stirrer 14 are stirred for a certain time, the materials are sent to a curing device by a discharging trolley 16;
and (3) filling the soil solidified and cemented by the solid medicament and the liquid medicament into a forming mold for forming, then putting the mold into a constant temperature and humidity curing box 13 for curing for a specified time, and demolding for further comprehensive utilization.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations and modifications can be made, which are consistent with the principles of the invention, from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The utility model provides a pollute soil solidification stabilization processing system which characterized in that: the device comprises a soil pretreatment device, a mixing device, a solid medicament storage device, a liquid medicament blending device, a curing device and a maintenance device; wherein,
the soil pretreatment device is used for screening stones in the polluted soil and conveying the screened soil to the mixing device;
the solid medicament storage device is used for conveying the solid medicament to the mixing device according to the proportion;
the mixing device receives the screened soil and the solid medicament and performs mixing treatment on the screened soil and the solid medicament;
the liquid medicament blending device is used for blending liquid medicaments and water according to the proportion and conveying the liquid medicaments and the water to the curing device;
the curing device respectively receives the soil conveyed by the mixing device and the liquid medicament conveyed by the liquid medicament blending device, and the soil is cured for a certain time and then conveyed to the maintenance device;
and the curing device cures the cured soil material in the curing box.
2. The processing system of claim 1, wherein: soil preprocessing device includes bucket elevator (1), material warehouse (2), star type tripper (3), tee bend depiler valve (4) and rectilinear vibrating screen (5), and bucket elevator (1) is located material warehouse (2) directly over, and material warehouse (2) lower part sets up star type tripper (3), and tee bend depiler valve (4) is connected in star type tripper (3), and tee bend depiler valve (4) can deliver to rectilinear vibrating screen (5) with soil, and rectilinear vibrating screen (5) are arranged in sifting away the stone in the soil.
3. The processing system of claim 2, wherein: soil preprocessing device still includes screw conveyer (6) and soil measurement storehouse (7), and soil after the screening is carried to soil measurement storehouse (7) by screw conveyer (6), and soil measurement storehouse (7) are arranged in the soil is delivered to mixing arrangement with soil after the measurement soil weight.
4. A processing system according to claim 2 or 3, characterized in that: the soil pretreatment device also comprises a waste material pipeline (15) used for discharging the soil which is not used after being screened out from the waste material pipeline (15).
5. The processing system of claim 1, wherein: the solid medicament storage device comprises a solid medicament metering bin (8), and the solid medicament is conveyed from the solid medicament metering bin (8) to the mixing device according to the proportion and is uniformly mixed.
6. The processing system of claim 5, wherein: the mixing device is a solid mixing bin (9).
7. The processing system of claim 1, wherein: the liquid medicament blending device comprises a liquid medicament storage tank (11), a water tank (12) and a liquid medicament mixing tank (10), wherein the liquid medicament storage tank (11) and the water tank (12) are provided with metering pumps, and liquid medicaments and water are pumped from the liquid medicament storage tank (11) and the water tank (12) to the liquid medicament mixing tank (10) according to the proportion and are uniformly mixed.
8. The processing system of claim 1, wherein: the curing device is a double-roller spiral stirrer (14) and is provided with independent solid and liquid feeding ports, liquid medicaments are sprayed on the solid, and materials after being stirred for a certain time are sent to the curing device by a discharging trolley (16).
9. The processing system of claim 1, wherein: the maintenance device comprises a forming die and a constant temperature and humidity maintenance box (13), the solidified soil material is loaded into the forming die, and then the die is placed into the constant temperature and humidity maintenance box (13) for maintenance for a specified time.
10. The process of any one of claims 1 to 9, comprising:
firstly, pouring polluted soil into a bucket elevator (1), conveying the soil to a material storage bin (2) by the bucket elevator (1), conveying the soil into a linear vibrating screen (5) through a star discharger (3) and a three-way distributing valve (4) below the material storage bin (2), conveying the screened soil into a soil metering bin (7) by a screw conveyor (6), metering the weight of the soil and then conveying the soil into a solid mixing bin (9);
secondly, conveying the solid medicament from the solid medicament metering bin (8) to the solid mixing bin (9) according to the proportion and uniformly mixing;
thirdly, conveying the soil from the solid mixing bin (9) to a double-roller screw mixer (14), simultaneously pumping the liquid medicament in the liquid medicament storage tank (11) and the water in the water tank (12) into a liquid medicament mixing tank (10) by a metering pump according to the proportion, uniformly mixing, and then conveying and spraying the mixture on the materials in the double-roller screw mixer (14) from the liquid medicament mixing tank (10);
fourthly, after the materials in the double-roller spiral stirrer (14) are stirred for a certain time, the materials are sent to a curing device by a discharging trolley (16); and fifthly, filling the soil solidified and cemented by the solid medicament and the liquid medicament into a forming mold for forming, then putting the mold into a constant temperature and humidity curing box (13) for curing for a specified time, and demolding for further comprehensive utilization.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116159855A (en) * | 2023-01-06 | 2023-05-26 | 杰瑞环保科技有限公司 | Contaminated soil remediation method and remediation system |
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Application publication date: 20211203 |