CN114479877A - Soil remediation improver - Google Patents
Soil remediation improver Download PDFInfo
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- CN114479877A CN114479877A CN202210258236.XA CN202210258236A CN114479877A CN 114479877 A CN114479877 A CN 114479877A CN 202210258236 A CN202210258236 A CN 202210258236A CN 114479877 A CN114479877 A CN 114479877A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of soil remediation, and particularly relates to a soil remediation improver which is prepared from the following raw materials in parts by weight: 23-32 parts of dehydrated kaolin; 33-51 parts of coal gangue powder; 5-11 parts of quicklime; 6-14 parts of resin sand; 3-6 parts of mixed acid; through setting up the stirring subassembly, utilize the lug of puddler tip and the lug contact on the internal wall of jar, and then when the lug produces the front and back displacement, make the inside elastic rod of puddler produce the trend of jack-up downwards, consequently, it is close to with the magnetic sheet to drive the magnetic path, utilize two kinds of magnetic poles to be close to the principle that produces the repulsion each other, make the magnetic sheet activity on the puddler, and then can shake off the soil pretreatment material and the medicament of adhesion on the puddler, and then be favorable to the intensive mixing of raw and other materials, be favorable to reducing experimental error.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to a soil remediation modifier.
Background
The soil remediation is to treat the heavy metals in the soil exceeding the standard.
At the present stage, two approaches are mainly used for treating the heavy metal pollution of the soil, namely, the existing form of the heavy metal in the soil is changed to fix the heavy metal, so that the mobility and the bioavailability of the heavy metal in the environment are reduced; and secondly, removing heavy metals from the soil by using a biological or engineering technology method.
At present, when soil is treated, heavy metal elements in the soil are solidified by using a physical and chemical agent and prevented from migrating and diffusing in the environment, the method is one of the best methods for treating the heavy metal contaminated soil, and when the agent is prepared and the effect of the agent is monitored, mixed slurry can be adhered to a stirring shaft by a traditional stirring unit after the mixed slurry is continuously stirred for a period of time, so that the pretreated soil and the agent do not react according to the regulation, therefore, the monitoring effect has errors, and the subsequent deviation of the agent usage amount and the agent concentration can be generated during actual application; therefore, the invention provides a soil remediation improver.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that after the traditional stirring unit is continuously stirred for a period of time, the mixed slurry can be adhered to a stirring shaft, so that the pretreated soil and the medicament do not react according to the regulation, the monitoring effect has errors, and the medicament usage amount and the medicament concentration deviation can be generated in the subsequent actual application.
The technical scheme adopted by the invention for solving the technical problems is as follows: the soil remediation improver is prepared from the following raw materials in parts by weight:
23-32 parts of dehydrated kaolin;
33-51 parts of coal gangue powder;
5-11 parts of quicklime;
6-14 parts of resin sand;
3-6 parts of mixed acid;
when the soil remediation modifier is prepared, the resin sand and the mixed acid are uniformly mixed to prepare a mixture, and then the mixture is uniformly mixed with the dehydrated kaolin, the coal gangue powder and the quick lime to prepare a mixed slurry; the mixed acid is prepared from concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 18.5-19.0: 1.
Preferably, the raw materials also comprise chitin and citric acid; the mass ratio of the chitin to the citric acid is 2.7-3.2: 1.
preferably, the mass ratio of the chitin to the dehydrated kaolin is 2.0-3.5: 27-32.
Preferably, the soil remediation conditioner remediation method comprises the following steps:
s1: preparing soil to be restored, crushing and screening the soil to be restored to obtain a soil pretreatment material;
s2: uniformly mixing the soil pretreatment material prepared in the step S1 with a soil remediation improver and water to obtain mixed slurry;
s3: stacking and curing the mixed slurry prepared in the step S2 for 9-27 days;
s4: and after 9-27 days, carrying out heavy metal element detection on the mixed slurry, and if the content is higher than a set standard, repeating the steps S1-S3.
Preferably, in the step S2, the mass ratio of the soil pretreatment material to the water is 65-72: 27-35.
Preferably, in S2, the soil pretreatment material is primarily mixed with water to obtain a mixed slurry, and then the soil remediation improver is added to the mixed slurry to be uniformly mixed, wherein the addition amount of the soil remediation improver is 75 to 118Kg per cubic meter of the mixed slurry.
Preferably, in S2, the mixing of the soil pretreatment material, the soil remediation improver and the water is completed in a mixing container; the mixing container consists of a top cover, a tank body and a stirring component; the top cap agrees with and connects on the jar body, just the top cap is run through on the top of stirring subassembly, and its bottom rotates to be connected in jar body bottom, utilizes the top cap of M type structure, when the activity of stirring subassembly is at jar internal portion, can be favorable to avoiding soil pretreatment materials, soil remediation improver and water adhesion inboard at the top cap, and then the degree of accuracy of influence experiment.
Preferably, the stirring assembly consists of a rotating shaft and a stirring rod; the top end of the rotating shaft penetrates through the top cover, and the stirring rod is fixedly connected to the bottom end of the rotating shaft; the puddler sets up the multiunit in a set of pivot, and the multiunit the puddler equidistance is arranged at the lower extreme of puddler, and when the puddler activity was at jar internal portion, it can drive the soil pretreatment material of jar internal portion, soil restoration improver and water intensive mixing mix.
Preferably, the upper end and the lower end of the stirring rod are movably connected with magnetic sheets, and the end part of the stirring rod is movably connected with a lug; a connecting rod is fixedly connected to one end, far away from the end part of the stirring rod, of the lug, and a first spring is sleeved on the connecting rod; two ends of the first spring are fixedly connected to the end part of the stirring rod and the bottom of the connecting rod respectively; a cavity is formed in the stirring rod, and elastic rods which are symmetrically arranged up and down are fixedly connected to the bottom of the cavity; one end of the connecting rod, which is far away from the end part of the stirring rod, is movable in the cavity; a magnetic block is embedded in the middle of the elastic rod; an elastic band is fixedly connected between the elastic rod and the cavity; a movable groove is formed in the position, corresponding to the magnetic sheet, of the stirring rod, and a second spring is fixedly connected to the bottom of the movable groove; the other end of the second spring is fixedly connected to the bottom of the magnetic sheet, and meanwhile, when the elastic rod generates elastic deformation, the elastic band between the elastic rod and the inner wall of the cavity can be stretched to generate elastic potential energy, and when the connecting rod does not apply pressure to the elastic rod, the elastic rod resets under the traction of the elastic band.
Preferably, a plurality of groups of convex blocks are fixedly connected to the inner wall of the tank body corresponding to the plurality of groups of stirring shafts, and the convex blocks are positioned on the same horizontal plane.
The invention has the technical effects and advantages that:
1. according to the soil remediation improver provided by the invention, the stirring component is arranged, the lug at the end part of the stirring rod is contacted with the lug on the inner wall of the tank body, so that when the lug displaces forwards and backwards, the elastic rod in the stirring rod tends to jack up downwards, the magnetic block is driven to be close to the magnetic sheet, and the magnetic sheet moves on the stirring rod by utilizing the principle that the two magnetic poles are close to each other to generate repulsive force, so that the soil pretreatment material and the medicament adhered to the stirring rod can be shaken off, the raw materials can be fully mixed, and the error of the test can be reduced.
2. According to the soil remediation improver, the top cover with the M-shaped structure is arranged, so that when the pretreated soil and the soil remediation improver in the tank body are fully mixed by the stirring assembly, the top cover with the M-shaped structure is beneficial to preventing the soil from adhering to the top cover, and has a positive effect on reducing test errors caused by adhesion of the pretreated soil.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a flow chart of a repair method of the present invention;
FIG. 2 is a perspective view of a mixing vessel according to the present invention;
FIG. 3 is a front view of the mixing vessel of the present invention;
FIG. 4 is a cross-sectional view of a mixing vessel according to the present invention;
FIG. 5 is a partial sectional view of the stirring rod of the present invention;
FIG. 6 is a front view of the stirring rod of the present invention.
In the figure: 1. a top cover; 2. a tank body; 21. a raised block; 3. a rotating shaft; 31. a stirring rod; 32. a magnetic sheet; 33. a bump; 331. a connecting rod; 332. a first spring; 34. a cavity; 35. an elastic rod; 351. an elastic band; 352. a magnetic block; 36. a movable groove; 361. and a second spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the soil remediation improver is prepared from the following raw materials in parts by weight:
27 parts of dehydrated kaolin;
45 parts of coal gangue powder;
7 parts of quicklime;
9 parts of resin sand;
5 parts of mixed acid;
when the soil remediation improver is prepared, the resin sand and the mixed acid are uniformly mixed to prepare a mixture, and then the mixture is uniformly mixed with the dehydrated kaolin, the coal gangue powder and the quick lime to prepare mixed slurry; the mixed acid is prepared from concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 18.7: 1.
As an embodiment of the present invention, the raw materials further include chitin and citric acid; the mass ratio of the chitin to the citric acid is 2.9: 1.
as an embodiment of the present invention, the mass ratio of the chitin to the dehydrated kaolin is 3.2: 29.
As an embodiment of the present invention, the soil remediation method includes:
s1: preparing soil to be restored, crushing and screening the soil to be restored to obtain a soil pretreatment material;
s2: uniformly mixing the soil pretreatment material prepared in the step S1 with a soil remediation improver and water to obtain mixed slurry;
s3: stacking and curing the mixed slurry prepared in the step S2 for 18 days;
s4: and after 18 days, carrying out heavy metal element detection on the mixed slurry, and repeating S1-S3 if the content is higher than a set standard.
In an embodiment of the present invention, in S2, the mass ratio of the soil pretreatment material to the water is 68: 33.
in an embodiment of the present invention, in S2, the soil pretreatment material is primarily mixed with water and stirred to obtain a mixed slurry, and then the soil remediation improver is added to the mixed slurry and mixed uniformly, wherein the addition amount of the soil remediation improver is 105Kg of soil remediation improver per cubic meter of the mixed slurry.
In an embodiment of the present invention, in S2, the mixing of the soil pretreatment materials, the soil remediation improver, and the water is performed in a mixing container; the mixing container consists of a top cover 1, a tank body 2 and a stirring component; the top cap 1 is fit with and is connected on jar body 2, just top cap 1 is run through on the top of stirring subassembly, and its bottom rotates to be connected in jar body 2 bottoms.
During operation, when respectively adding soil pretreatment material and soil restoration improver, water between top cap 1 and the jar body 2, utilize the top cap 1 of M type structure, when stirring subassembly activity is inside the jar body 2, can be favorable to avoiding soil pretreatment material, soil restoration improver and water adhesion at top cap 1 inboardly, and then influence the degree of accuracy of experiment.
As an embodiment of the present invention, the stirring assembly is composed of a rotating shaft 3 and a stirring rod 31; the top end of the rotating shaft 3 penetrates through the top cover 1, and the stirring rod 31 is fixedly connected to the bottom end of the rotating shaft 3; the puddler 31 sets up the multiunit on a set of pivot 3, and the multiunit the lower extreme at puddler 31 is arranged to puddler 31 equidistance.
During operation, when the stirring assembly works, the stirring rod 31 is driven to rotate in the tank body 2 by the aid of the external rotating shaft 3, and meanwhile, when the stirring rod 31 moves in the tank body 2, the stirring rod can drive soil pretreatment materials, soil remediation modifiers and water in the tank body 2 to be fully stirred and mixed.
As an embodiment of the present invention, the upper and lower ends of the stirring rod 31 are movably connected with magnetic sheets 32, and the end of the stirring rod 31 is movably connected with a bump 33; a connecting rod 331 is fixedly connected to one end of the bump 33 far away from the end of the stirring rod 31, and a first spring 332 is sleeved on the connecting rod 331; two ends of the first spring 332 are respectively and fixedly connected to the end of the stirring rod 31 and the bottom of the connecting rod 331; a cavity 34 is formed in the stirring rod 31, and elastic rods 35 which are symmetrically arranged up and down are fixedly connected to the bottom of the cavity 34; one end of the connecting rod 331, which is far away from the end of the stirring rod 31, is movable in the cavity 34; a magnetic block 352 is embedded in the middle of the elastic rod 35; an elastic band 351 is fixedly connected between the elastic rod 35 and the cavity 34; a movable groove 36 is formed in the position, corresponding to the magnetic sheet 32, of the stirring rod 31, and a second spring 361 is fixedly connected to the bottom of the movable groove 36; the other end of the second spring 361 is fixedly connected to the bottom of the magnetic sheet 32.
As an embodiment of the present invention, a plurality of sets of protrusions 21 are fixed on the inner wall of the tank 2 corresponding to the plurality of sets of stirring shafts, and the protrusions 21 and the protrusions 33 are located on the same horizontal plane.
When the stirring rod 31 works, when the stirring rod 31 moves, the lug 33 at the end part of the stirring rod 31 can be contacted with the inner wall of the tank body 2 and is pressed by the lug 33 on the inner wall of the tank body 2 to contract inwards, the first spring 332 can be stretched when the lug 33 contracts inwards, the connecting rod 331 at the end part of the lug 33 is connected with the connecting rod 331 at the end part of the lug 33 to act inwards on the elastic rod 35, so that the elastic rod 35 tends to bend, and because the elastic rod 35 has certain elastic deformation capacity, when the end part of the elastic rod 35 is pressed, the middle part of the elastic rod can be jacked upwards and drives the magnetic block 352 at the middle part to be close to the side wall of the stirring rod 31, and because the magnetic block 32 at the top part of the stirring rod 31 has a magnetic pole opposite to the magnetic block 352, when the magnetic block 352 is close to the magnetic block 32 along with the elastic rod 35, the magnetic block 32, the principle that the opposite magnetic pole is close to generate repulsive force is utilized, so that the magnetic block 32 can move on the surface of the stirring rod 31, and further can pretreat the soil on the top surface of the stirring rod 31, Soil remediation improver and water shake off to avoid influencing the accuracy of experiment because any one of its three raw and other materials adheres on puddler 31, when elastic rod 35 produced elastic deformation, elastic band 351 that is located between elastic rod 35 and the cavity 34 inner wall can receive the tensile and produce elastic potential energy simultaneously, when connecting rod 331 did not exert pressure to elastic rod 35, elastic rod 35 resets under the traction of elastic band 351.
The working principle is as follows: when the soil pretreatment material, the soil remediation improver and water are respectively added between the top cover 1 and the tank body 2, the top cover 1 with the M-shaped structure is utilized, and when the stirring assembly moves in the tank body 2, the soil pretreatment material, the soil remediation improver and the water can be prevented from being adhered to the inner side of the top cover 1, so that the accuracy of the experiment is influenced;
when the stirring rod 31 moves, the bump 33 at the end of the stirring rod 31 contacts with the inner wall of the tank body 2 and is pressed by the bump 33 on the inner wall of the tank body 2 to contract inwards, when the bump 33 contracts inwards, the first spring 332 is stretched, at this time, the connecting rod 331 connected with the end of the bump 33 acts inwards on the elastic rod 35 to make the elastic rod 35 tend to bend, and because the elastic rod 35 has certain elastic deformation capacity, when the end of the elastic rod 35 is pressed, the middle part of the elastic rod is jacked upwards to drive the magnetic block 352 at the middle part to be close to the side wall of the stirring rod 31, and because the magnetic sheet 32 at the top of the stirring rod 31 has a magnetic pole opposite to the magnetic block 352, when the magnetic block 352 is close to the magnetic sheet 32 along with the elastic rod 35, the magnetic sheet 32 utilizes the principle that the opposite magnetic pole is close to generate repulsive force, so that the magnetic sheet 32 can move on the surface of the stirring rod 31, and further can pretreat the soil on the top surface of the stirring rod 31, Soil remediation improver and water shake off to avoid influencing the accuracy of experiment because any one of its three raw and other materials adheres on puddler 31, when elastic rod 35 produced elastic deformation, elastic band 351 that is located between elastic rod 35 and the cavity 34 inner wall can receive the tensile and produce elastic potential energy simultaneously, when connecting rod 331 did not exert pressure to elastic rod 35, elastic rod 35 resets under the traction of elastic band 351.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A soil remediation improver is characterized in that: the soil remediation improver is prepared from the following raw materials in parts by weight:
23-32 parts of dehydrated kaolin;
33-51 parts of coal gangue powder;
5-11 parts of quicklime;
6-14 parts of resin sand;
3-6 parts of mixed acid;
when the soil remediation improver is prepared, the resin sand and the mixed acid are uniformly mixed to prepare a mixture, and then the mixture is uniformly mixed with the dehydrated kaolin, the coal gangue powder and the quick lime to prepare mixed slurry; the mixed acid is prepared from concentrated sulfuric acid and concentrated nitric acid in a volume ratio of 18.5-19.0: 1.
2. A soil remediation amendment according to claim 1, characterised in that: the raw materials also comprise chitin and citric acid; the mass ratio of the chitin to the citric acid is 2.7-3.2: 1.
3. a soil remediation amendment according to claim 2, characterised in that: the mass ratio of the chitin to the dehydrated kaolin is 2.0-3.5: 27-32.
4. A soil remediation amendment according to claim 3, wherein: the soil restoration improving agent restoration method comprises the following steps:
s1: preparing soil to be restored, crushing and screening the soil to be restored to obtain a soil pretreatment material;
s2: uniformly mixing the soil pretreatment material prepared in the step S1 with a soil remediation improver and water to obtain mixed slurry;
s3: stacking and curing the mixed slurry prepared in the step S2 for 9-27 days;
s4: and after 9-27 days, carrying out heavy metal element detection on the mixed slurry, and if the content is higher than a set standard, repeating the steps S1-S3.
5. A soil remediation amendment according to claim 4, characterised in that: in the S2, the mass ratio of the soil pretreatment material to water is 65-72: 27-35.
6. A soil remediation amendment according to claim 5, characterised in that: and in the S2, the soil pretreatment material and water are primarily mixed and stirred to obtain mixed slurry, and then the soil remediation improver is added into the mixed slurry and uniformly mixed, wherein the adding amount of the soil remediation improver is 75-118Kg per cubic meter of the mixed slurry.
7. A soil remediation amendment according to claim 6, characterised in that: in the step S2, mixing the soil pretreatment material, the soil remediation improver and water in a mixing container; the mixing container consists of a top cover (1), a tank body (2) and a stirring component; the top cover (1) is connected to the tank body (2) in a matching manner, the top end of the stirring assembly penetrates through the top cover (1), and the bottom end of the stirring assembly is rotatably connected to the bottom of the tank body (2).
8. A soil remediation amendment according to claim 7, characterised in that: the stirring component consists of a rotating shaft (3) and a stirring rod (31); the top end of the rotating shaft (3) penetrates through the top cover (1), and the stirring rod (31) is fixedly connected to the bottom end of the rotating shaft (3); the stirring rod (31) is provided with a plurality of groups on a set of rotating shaft (3), and the stirring rod (31) is arranged at the lower end of the stirring rod (31) in an equal distance.
9. A soil remediation amendment according to claim 8, wherein: the upper end and the lower end of the stirring rod (31) are movably connected with magnetic sheets (32), and the end part of the stirring rod (31) is movably connected with a lug (33); a connecting rod (331) is fixedly connected to one end, far away from the end part of the stirring rod (31), of the lug (33), and a first spring (332) is sleeved on the connecting rod (331); two ends of the first spring (332) are fixedly connected to the end part of the stirring rod (31) and the bottom of the connecting rod (331) respectively; a cavity (34) is formed in the stirring rod (31), and elastic rods (35) which are symmetrically arranged up and down are fixedly connected to the bottom of the cavity (34); one end of the connecting rod (331) far away from the end part of the stirring rod (31) is movably arranged in the cavity (34); a magnetic block (352) is embedded in the middle of the elastic rod (35); an elastic band (351) is fixedly connected between the elastic rod (35) and the cavity (34); a movable groove (36) is formed in the position, corresponding to the magnetic sheet (32), of the stirring rod (31), and a second spring (361) is fixedly connected to the bottom of the movable groove (36); the other end of the second spring (361) is fixedly connected to the bottom of the magnetic sheet (32).
10. A soil remediation amendment according to claim 9, characterised in that: a plurality of groups of convex blocks (21) are fixedly connected on the inner wall of the tank body (2) corresponding to a plurality of groups of stirring shafts, and the convex blocks (21) and the convex blocks (33) are positioned on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210258236.XA CN114479877A (en) | 2022-03-16 | 2022-03-16 | Soil remediation improver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210258236.XA CN114479877A (en) | 2022-03-16 | 2022-03-16 | Soil remediation improver |
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| Publication Number | Publication Date |
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| CN114479877A true CN114479877A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210258236.XA Pending CN114479877A (en) | 2022-03-16 | 2022-03-16 | Soil remediation improver |
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| CN (1) | CN114479877A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040769A (en) * | 2019-12-17 | 2020-04-21 | 河南省地质环境规划设计院有限公司 | Soil restoration improving agent and soil restoration improving method |
| CN112619473A (en) * | 2020-12-07 | 2021-04-09 | 安徽金皖泰面粉有限公司 | A raw materials mixing device for wheat germ powder deep-processing |
-
2022
- 2022-03-16 CN CN202210258236.XA patent/CN114479877A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040769A (en) * | 2019-12-17 | 2020-04-21 | 河南省地质环境规划设计院有限公司 | Soil restoration improving agent and soil restoration improving method |
| CN112619473A (en) * | 2020-12-07 | 2021-04-09 | 安徽金皖泰面粉有限公司 | A raw materials mixing device for wheat germ powder deep-processing |
Non-Patent Citations (1)
| Title |
|---|
| 项仁寿: "实用电工基础", vol. 1, 中国建材工业出版社, pages: 34 - 35 * |
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