CN208098883U - A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit - Google Patents
A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit Download PDFInfo
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- CN208098883U CN208098883U CN201721808773.8U CN201721808773U CN208098883U CN 208098883 U CN208098883 U CN 208098883U CN 201721808773 U CN201721808773 U CN 201721808773U CN 208098883 U CN208098883 U CN 208098883U
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Abstract
A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit disclosed by the utility model, including reaction tank, further include gas phase vibration device and the lower part that reaction tank is arranged in；The gas phase vibration device is made of a pair of of pipe tunnel and several horizontal pipelines, and horizontal pipeline is arranged in parallel between a pair of of pipe tunnel, and several spray orifices are provided on the horizontal pipeline, are connected with ultrasonic atomizing nozzle on the spray orifice；It is connect by pipeline with air pump on the horizontal pipeline of the side, is provided with pressure regulator valve on pipeline between the two.By gas phase vibration device described herein, contaminated soil is sufficiently merged with stabilization agent, ensure that the resultant effect of contaminated soil solidification and stabilization.The utility model is structurally reasonable, changes the physicochemical property of soil, and soil is made to be configured to the curing/stabilizing product that structure is closely knit, crushing resistance is strong, permeability is low, so that the migration of pollutant in soil is reduced, so that Leaching rule concentration reaches stabilisation target value.
Description
Technical field
The utility model relates to contaminated soil processing technology fields more particularly to a kind of gas phase oscillatory type contaminated soil to solidify
Stabilization reactions device.
Background technique
Curing/stabilizing technology is a kind of for handling contaminated soil (mainly heavy metal pollution) and other pollution mediums
Technology, utilize additive, by converting other physically or chemically forms for the hazardous component in waste or soil, to disappear
Remove or reduce waste nature of danger process.
The main operational principle of curing/stabilizing technology is：By being added and mixed adhesive (such as glue in contaminated soil
Hard agent is coagulated in solidifying agent), make to react with contaminated soil, change the physicochemical property of soil, so that soil is configured to structure closely knit, anti-
The curing/stabilizing product that pressure property is strong, permeability is low, so that the migration of pollutant in soil is reduced, so that pollutant is molten
Concentration (is leached) out reaches acceptable level specified in specific plot stabilisation target, it is final to realize to underground water and (or) ground
The protection purpose of table water.
Currently, generally use in contaminated soil solidification and stabilization technical application and mechanically or manually excavate and stir medicament,
This processing method often results in the problems such as contaminated soil quality is uneven, adding of agent is unordered, undercompounding, to contaminated soil
Treatment effect it is bad, the dissolution concentration of pollutant is not achieved specific plot and stabilizes target.
Utility model content
The purpose of this utility model is that in view of the above technical problems, the technical solution provided changes the physics and chemistry of soil
Matter makes soil be configured to the curing/stabilizing product that structure is closely knit, crushing resistance is strong, permeability is low, pollutes to reduce in soil
The migration of object, so that the dissolution concentration of pollutant reaches stabilisation target value.
The technical solution of the utility model
In order to solve the above technical problems, a kind of gas phase oscillatory type contaminated soil solidification and stabilization provided by the utility model is anti-
Device, including reaction tank are answered, further includes gas phase vibration device and the lower part that reaction tank is set；The gas phase vibration device by
A pair of of pipe tunnel and several horizontal pipelines composition, the horizontal pipeline are arranged in parallel between a pair of of pipe tunnel, the cross
It is provided with several spray orifices on pipeline, is connected with ultrasonic atomizing nozzle on the spray orifice；Pass through on the horizontal pipeline of the side
Pipeline is connect with air pump, is provided with pressure regulator valve on pipeline between the two.On pipeline between the air pump and horizontal pipeline also
It is provided with stability medicament input channel, stability medicament regulating valve is additionally provided on stability medicament input channel.Stability
Medicament is entered in horizontal pipeline by stability medicament input channel, meanwhile, gas enters horizontal pipeline by air pump.
Further, the underface of horizontal pipeline is arranged in the spray orifice, effectively prevent contaminated soil to be processed to enter super
Sound atomizer guarantees that the unobstructed and air-flow of gas circuit mixes effect to contaminated soil.
Further, the distance between described adjacent orifices are 25mm.
Present invention also provides a kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit, including reaction tank,
It further include gas phase vibration device and the lower part that reaction tank is set；The gas phase vibration device is by a pair of of pipe tunnel and several cross
It is formed to pipeline, the horizontal pipeline is arranged in parallel between a pair of of pipe tunnel, and underface is provided on the horizontal pipeline
Several spray orifices are connected with ultrasonic atomizing nozzle on the spray orifice；Pass through pipeline and venturi gas on the horizontal pipeline of the side
Water mixer connects, and is provided with pressure regulator valve on pipeline between the two.The venturi gas-water mixer is a triple valve, institute
It states stability medicament and horizontal pipeline is entered by an interface of venturi gas-water mixer, another interface is passed through suitable gas
Body, such stability medicament mix in horizontal pipeline with gas, form atomization gas and spray.
Further, a nozzle of the venturi gas-water mixer is passed through gas, other nozzles are passed through processing water, this
Kind design scheme, has been effectively ensured fluid and has been sprayed from ultrasonic atomizing nozzle with aerosol state, guarantees air-flow to contaminated soil
Mix effect, to realize coming into full contact with for stabilization agent and contaminated soil.
Further, further include screening plant, feed hopper, mud machine processed and spiral washed-out sand equipment, screening plant, feed hopper,
Mud machine, spiral washed-out sand equipment and reaction tank processed are sequentially connected
Meanwhile present invention also provides a kind of gas phase oscillatory type contaminated soil solidification and stabilization processing methods, it is specific to wrap
Include following steps：
S1, it is clear to dig transhipment contaminated soil, classification is carried out to contaminated soil and handles the pollution for obtaining particle diameter less than 2mm
Soil；
Contaminated soil in step S1 is placed in reaction tank by S2, is added according to the pollution condition of soil and is stablized chemical drug
Agent；
S3, booster air pump or venturi gas-water mixer, under the action of gas phase vibration device, contaminated soil is in reaction tank
Middle fluidisation rolling, contaminated soil are sufficiently mixed with stabilization agent；
S4, contaminated soil is banked up with stabilization agent to react；
S5, treated whether contaminated soil is up to standard for sample detection, repeats step S2 to S4 if it does not meet the standards.
Further, in step S1, the contaminated soil classification processing includes the following steps：
S1-1, for contaminated soil by after screening process, removal particle diameter is greater than the clinker of 50mm, and particle diameter is less than 50mm
Particle mud machine equipment processed is entered by feed hopper；
S1-2 is separated by waterpower in mud machine equipment processed, is obtained 10~50mm of particle diameter and particle diameter is less than
Two kinds of components of 10mm, the group lease making of 10~50mm of particle diameter are regarded as cleaning coarse-grained soil after rinsing, particle diameter is small
Enter spiral washed-out sand equipment in the component of 10mm；
S1-3, component of the particle diameter less than 10mm obtain particle size diameter 2~10mm coarse sand after spiral washed-out sand equipment
Gravel and particle diameter are less than the component of 2mm, and the group lease making of 2~10mm of particle diameter is regarded as cleaning coarse-grained soil after rinsing
Earth, component of the particle diameter less than 2mm enter in the gas phase oscillatory type contaminated soil solidification and stabilization reaction unit.
Further, in step S4, it is 8-10 hours that the contaminated soil and stabilization agent, which bank up reaction time,；Heap
Maintenance 1 day is also needed after setting reaction.
The utility model beneficial effect：
A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit provided by the utility model, it is structurally reasonable,
It has the following technical effects：
(1) by gas phase vibration device described herein, contaminated soil is sufficiently merged with stabilization agent, ensure that dirt
Contaminate the stabilized resultant effect of soil solidification；
(2) solidification and stabilization processing method described herein changes the physicochemical property of soil, and soil is made to be configured to tie
The curing/stabilizing product that structure is closely knit, crushing resistance is strong, permeability is low, so that the migration of pollutant in soil is reduced, so that dirty
The dissolution concentration of dye object reaches stabilisation target value.
Detailed description of the invention
It will be apparent and more hold by made detailed description, the above-mentioned advantage of the utility model in conjunction with the following drawings
Readily understood, these attached drawings are only schematical, are not intended to limit the utility model, wherein：
Fig. 1 is the knot of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit described in the utility model (containing air pump)
Structure schematic diagram；
Fig. 2 is the sectional view of the horizontal pipeline of the utility model；
Fig. 3 is gas phase oscillatory type contaminated soil solidification and stabilization reaction unit (air water containing venturi described in the utility model
Mixer) structural schematic diagram；
Fig. 4 is the flow chart of gas phase oscillatory type contaminated soil solidification and stabilization processing method described in the utility model；
Fig. 5 is the flow chart of the land classification processing of the utility model；
Fig. 6 is the schematic diagram of each sample process As bio-available Zn concentration of experiment described in the utility model；
In attached drawing, component representated by each label is as follows：
1. reaction tank；2. pipe tunnel；3. horizontal pipeline；4. ultrasonic atomizing nozzle；5. air pump；6. pressure regulator valve；7. literary mound
In gas-water mixer.
Specific embodiment
Combined with specific embodiments below and attached drawing, to a kind of gas phase oscillatory type contaminated soil solidification and stabilization of the utility model
Reaction unit and processing method are described in detail.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be used based on present specification disclosure of that
Obvious other technical solutions, these technical solutions include using any aobvious and easy to making for the embodiment recorded herein
The technical solution for the substitutions and modifications seen.
The attached drawing of this specification is schematic diagram, aids in illustrating the design of the utility model, it is schematically indicated each section
Shape and its correlation.It note that for the ease of clearly showing the structure of each component of the utility model embodiment, phase
Same reference marker is for indicating identical part.
Fig. 1 is a kind of structural schematic diagram of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit comprising reaction
Pond 1 further includes gas phase vibration device and the lower part that reaction tank 1 is arranged in；The gas phase vibration device is by a pair of of pipe tunnel 2
And several horizontal pipelines 3 form, the horizontal pipeline 3 is arranged in parallel between a pair of of pipe tunnel 2, on the horizontal pipeline 3
Several spray orifices are provided with, ultrasonic atomizing nozzle 4 are connected on the spray orifice, as shown in Figure 2；On the horizontal pipeline 3 of the side
It is connect by pipeline with air pump 5, pressure regulator valve 6 is provided on pipeline between the two.Between the air pump 5 and horizontal pipeline 3
It is additionally provided with stability medicament input channel on pipeline, stability medicament regulating valve is additionally provided on stability medicament input channel
8, stability medicament is entered in horizontal pipeline 3 by stability medicament input channel, meanwhile, gas is entered laterally by air pump 5
Pipeline 3.
In the application, the underface of horizontal pipeline 3 is arranged in the spray orifice, and the distance between described adjacent orifices are
25mm effectively prevent pollution to be processed as shown in Fig. 2, the underface of horizontal pipeline 3 is arranged in spray orifice and ultrasonic atomizing nozzle 4
Soil enters ultrasonic atomizing nozzle 4, guarantees that the unobstructed and air-flow of gas circuit mixes effect to contaminated soil.
Gas phase oscillatory type contaminated soil solidification and stabilization reaction unit described herein is sprayed and its is generated by steam
Vibration force, make contaminated soil and curing and stabilizing agent along horizontal throwing, forward continuous movement.By the adjusting of pressure regulator valve 6,
Increase speed of the air-flow by bed, when speed is excessive, particle loosens, and intergranular space increases, and bed volume occurs
Expansion.If further improving fluid velocity, bed cannot maintain stationary state.At this point, particle is all suspended in fluid
In, there is irregular movement.With the raising of flow velocity, the movement of particle is further violent, and the expansion of bed also increases with it, but
It is that particle still remains in bed without being taken out of by fluid, liquefied feature is presented, allows contaminated soil and medicament as stream
Body equally moves, and reaches to increase granule surface area contact and is sufficiently mixed effect.Due to soil stabilization solidification stabilization process
Itself needs a large amount of water to be used for reacting to each other between soil and medicament, supplies in the prior art frequently with the independence of top spray
Water mode, and the application eliminates top spray structure, keeps structure of reactor simpler compact, and creatively by water,
The supply of gas, medicine combines together, and convenient for control, water, gas, medicament first carry out mixing in the duct keeps liquid medicine more uniform,
Dissolved with medicament air-water mixture by ultrasonic atomizatio shower nozzle formed high speed atomizing particle and microbubble, stir contaminated soil
Particle makes its fluidisation, while soil particle comes into full contact with the fluid atomizing particle containing medicament, is sufficiently mixed effect to reach
Fruit.
Present invention also provides a kind of structure of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit intentions, such as scheme
Shown in 3 comprising reaction tank 1 further includes gas phase vibration device and the lower part that reaction tank 1 is arranged in；The gas phase vibration dress
Set and be made of a pair of of pipe tunnel 2 and several horizontal pipelines 3, the horizontal pipeline 3 be arranged in parallel in a pair of of pipe tunnel 2 it
Between, underface is provided with several spray orifices on the horizontal pipeline 3, and ultrasonic atomizing nozzle 4 is connected on the spray orifice；The side
Horizontal pipeline 3 on connect with venturi gas-water mixer 7 by pipeline, pressure regulator valve 6 is provided on pipeline between the two.Institute
Stating venturi gas-water mixer 7 is a triple valve, and the stability medicament passes through an interface of venturi gas-water mixer 7
Into horizontal pipeline 3, another interface is passed through suitable gas, and such stability medicament mixes in horizontal pipeline 3 with gas,
It forms atomization gas and sprays.This design scheme has been effectively ensured fluid and has been sprayed from ultrasonic atomizing nozzle 4 with aerosol state
Out, guarantee that air-flow mixes effect to contaminated soil, repair coming into full contact with for medicament and contaminated soil to realize.
Meanwhile the utility model additionally provides a kind of gas phase oscillatory type contaminated soil solidification and stabilization processing method, stream
Cheng Tu, as shown in figure 4, contaminated soil solidification and stabilization processing method specifically includes following steps：
S1, it is clear to dig transhipment contaminated soil, classification is carried out to contaminated soil and handles the pollution for obtaining particle diameter less than 2mm
Soil；
In this step, the flow chart of the contaminated soil classification processing, as shown in figure 5, it includes the following steps：
S1-1, for contaminated soil by after screening process, removal particle diameter is greater than the clinker of 50mm, and particle diameter is less than 50mm
Particle mud machine equipment processed is entered by feed hopper；
S1-2 is separated by waterpower in mud machine equipment processed, is obtained 10~50mm of particle diameter and particle diameter is less than
Two kinds of components of 10mm, the group lease making of 10~50mm of particle diameter are regarded as cleaning coarse-grained soil after rinsing, particle diameter is small
Enter spiral washed-out sand equipment in the component of 10mm；
S1-3, component of the particle diameter less than 10mm obtain particle size diameter 2~10mm coarse sand after spiral washed-out sand equipment
Gravel and particle diameter are less than the component of 2mm, and the group lease making of 2~10mm of particle diameter is regarded as cleaning coarse-grained soil after rinsing
Earth, component of the particle diameter less than 2mm enter in the gas phase oscillatory type contaminated soil solidification and stabilization reaction unit.
Since general pollutant is all attached to particle surface, screening pretreatment for the clinker of bulky grain, passes through water
Power separation, washing away for spiral sand-washing device can remove a part of pollutant；Gradation is simultaneously for soil and aerosolized medication
Be sufficiently mixed, the material of output has certain moisture, can supplement medicament reacted with contaminated soil in the moisture that loses.
Contaminated soil in step S1 is placed in reaction tank 1 by S2, pressure regulator valve 6 is opened, according to the pollution condition of soil
Import stabilization agent solution；
S3, booster air pump 5 or venturi gas-water mixer 7, under the action of gas phase vibration device, contaminated soil is reacting
Fluidisation is rolled in pond 1, and contaminated soil is sufficiently mixed with stabilization agent；
S4, contaminated soil is banked up with stabilization agent to react；
In this step, it is 8-10 hours that the contaminated soil and stabilization agent, which bank up reaction time,；After banking up reaction
Also need maintenance 1 day.
S5, treated whether contaminated soil is up to standard for sample detection, repeats step S2 to S4 if it does not meet the standards.
Technical solution described herein is illustrated below with reference to an experiment：
This is tested in reaction unit shown in Fig. 1 and carries out, and tests including six kinds of materials (iron powder, ferric sulfate, sulfuric acid
Ferrous iron, iron chloride, iron oxide and bodied ferric sulfate), 4 parallel, 4 controls are arranged in every kind of material, totally 28 samples.Passivator
Additive amount 4g/kg.Control soil moisture content is reacted 10 hours in 50%-70% or so, reaction unit, and is conserved 1 day, sampling
Survey available state arsenic.Experimental result is as shown in table 1.
Each sample process passivation effect of table 1
In this experiment, efficiency=(arsenic content after blank arsenic content-processing)/blank arsenic content * 100% is stabilized.Pass through
Passivation efficiency is seen, using any medicament, utility model device can obtain higher stabilisation efficiency, is averagely reached
82%, the stabilisation efficiency than convention stir technique 50% or so has been higher by 32%, and at least 5 days places than in the prior art
Reason used time time is shorter, improves efficiency.
By above-mentioned experiment it is found that using gas phase oscillatory type contaminated soil solidification and stabilization reaction unit described herein
And processing method carries out the experimental study of corresponding contaminated soil processing.
Compared with prior art, technical solution provided by the utility model, it is structurally reasonable, change the physics and chemistry of soil
Matter makes soil be configured to the curing/stabilizing product that structure is closely knit, crushing resistance is strong, permeability is low, pollutes to reduce in soil
The migration of object, so that the dissolution concentration of pollutant reaches stabilisation target value.
The utility model is not limited to above embodiment, anyone can obtain other under the enlightenment of the utility model
Various forms of products, however, make any variation in its shape or structure, it is all with identical or similar to the present application
Technical solution, all fall within the protection scope of the utility model.
Claims (6)
1. a kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit, including reaction tank (1), which is characterized in that also wrap
Gas phase vibration device is included, is arranged in the lower part of reaction tank (1)；The gas phase vibration device by a pair of of pipe tunnel (2) and if
Dry horizontal pipeline (3) composition, the horizontal pipeline (3) are arranged in parallel between a pair of of pipe tunnel (2), the horizontal pipeline
(3) it is provided with several spray orifices on, ultrasonic atomizing nozzle (4) are connected on the spray orifice；Lead on the horizontal pipeline (3) of the side
Piping is connect with air pump (5), and pressure regulator valve (6) are provided on pipeline between the two；The air pump (5) and horizontal pipeline (3)
Between pipeline on be additionally provided with stability medicament input channel, be additionally provided with stability medicament on stability medicament input channel
Regulating valve (8).
2. gas phase oscillatory type contaminated soil solidification and stabilization reaction unit according to claim 1, which is characterized in that the spray
Hole is arranged in the underface of horizontal pipeline (3).
3. gas phase oscillatory type contaminated soil solidification and stabilization reaction unit according to claim 2, which is characterized in that the phase
The distance between adjacent spray orifice is 25mm.
4. a kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit, including reaction tank (1), which is characterized in that also wrap
Gas phase vibration device is included, is arranged in the lower part of reaction tank (1)；The gas phase vibration device by a pair of of pipe tunnel (2) and if
Dry horizontal pipeline (3) composition, the horizontal pipeline (3) are arranged in parallel between a pair of of pipe tunnel (2), the horizontal pipeline
(3) several spray orifices are provided with immediately below on, ultrasonic atomizing nozzle (4) are connected on the spray orifice；The horizontal pipeline of the side
(3) it is connect by pipeline with venturi gas-water mixer (7) on, pressure regulator valve (6) is provided on pipeline between the two.
5. gas phase oscillatory type contaminated soil solidification and stabilization reaction unit according to claim 4, which is characterized in that the text
A nozzle of gas-water mixer (7) is passed through gas in mound, other nozzles are passed through processing water.
6. according to claim 1 or the 4 gas phase oscillatory type contaminated soil solidification and stabilization reaction units, which is characterized in that also
Including screening plant, feed hopper, mud machine processed and spiral washed-out sand equipment, screening plant, feed hopper, mud machine processed, spiral washed-out sand equipment
It is sequentially connected with reaction tank (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721808773.8U CN208098883U (en) | 2017-12-22 | 2017-12-22 | A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit |
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| CN201721808773.8U CN208098883U (en) | 2017-12-22 | 2017-12-22 | A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891055A (en) * | 2017-12-22 | 2018-04-10 | 环境保护部环境规划院 | A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit and processing method |
| CN112453039A (en) * | 2020-06-09 | 2021-03-09 | 中国检验检疫科学研究院 | Device for reinforcing elution of pollutants through micro-bubble coupling stirring |
| CN113281094A (en) * | 2021-06-28 | 2021-08-20 | 中国科学院武汉岩土力学研究所 | Sampling and curing system and method for undisturbed sandy soil |
-
2017
- 2017-12-22 CN CN201721808773.8U patent/CN208098883U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891055A (en) * | 2017-12-22 | 2018-04-10 | 环境保护部环境规划院 | A kind of gas phase oscillatory type contaminated soil solidification and stabilization reaction unit and processing method |
| CN112453039A (en) * | 2020-06-09 | 2021-03-09 | 中国检验检疫科学研究院 | Device for reinforcing elution of pollutants through micro-bubble coupling stirring |
| CN113281094A (en) * | 2021-06-28 | 2021-08-20 | 中国科学院武汉岩土力学研究所 | Sampling and curing system and method for undisturbed sandy soil |
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