CN207238746U - A kind of system of room temperature desorption disposal volatile organic matter pollution cohesive soil - Google Patents
A kind of system of room temperature desorption disposal volatile organic matter pollution cohesive soil Download PDFInfo
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- CN207238746U CN207238746U CN201721012939.5U CN201721012939U CN207238746U CN 207238746 U CN207238746 U CN 207238746U CN 201721012939 U CN201721012939 U CN 201721012939U CN 207238746 U CN207238746 U CN 207238746U
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Abstract
The utility model discloses the system that a kind of room temperature desorbs disposal volatile organic matter pollution cohesive soil.The system comprises closed disposal greenhouse, crushing and screening device, air-supply arrangement, exhaust collection processing unit.Wherein, the closed disposal greenhouse is the closed structure with closed logistics corridor, crushing and screening device sieves contaminated soil with the mixture of coarse sand, quick lime, is crushed, being mixed and aeration, air-supply arrangement is connected to the greenhouse side wall, and exhaust collection processing unit is connected at the top of the greenhouse.Volatile organic contaminant in soil can effectively and rapidly be removed using the utility model, remediation efficiency is high, quality is good, and any secondary pollution will not be produced to soil, the soil higher suitable for repairing stickiness.
Description
Technical field
A kind of system for disposing contaminated soil is the utility model is related to, belongs to environment remediation technical field, particularly one kind
The system of room temperature desorption disposal volatile organic matter pollution cohesive soil.
Background technology
Volatile Organic Compounds in Soil（Volatile organic compounds, VOCs）Refer to enter soil ring
Border and the volatile organic compounds for causing environmental pollution, the definition on environment protection significance refer to that active a kind of volatility is organic
Thing, i.e., can produce that a kind of volatile organic matter of harm, including benzene homologues, organic chloride, freon series, organic ketone,
The compounds such as amine, alcohol, ether, ester, acid and petroleum hydrocarbon, when the VOCs in environment reaches a certain concentration, can make to be in the environment
Personnel there is headache, Nausea and vomiting, the symptom such as weak, even trigger twitch, stupor when serious, injury liver, kidney, greatly
Brain and nervous system, cause the serious consequences such as failure of memory.The source of the VOCs is related to chemical industry, pharmaceuticals industry, printing and dyeing
Industry, tobacco business, textile industry, toy industry, home decoration material, auto parts machinery material, electric industry, daily use chemicals
The industries such as industry, its industrial chemicals used, ink, organic solvent, adhesive, paint, coating etc. can produce volatility dirt
Contaminate thing.These pollutants are detained and accumulate in the soil, make pollutant in soil too high levels or exceeded, some volatility are stronger
Material air can be polluted, migration and water-soluble stronger material can directly permeate the ground water, so as to destroy soil
Within and around environment the ecological balance, to animals and plants, microorganism and the mankind produce stimulate murder by poisoning；Tire out in soil and groundwater
Long-pending polluter by the transmission of food chain, can be progressively enriched with the animals and plants of higher level, jeopardize the health of more mankind, very
Change to induction biological species and quantity.So the place progress soil remediation to volatile organic matter pollution is very
One of important research topic.
Prosthetic appliance is desorbed for the room temperature of contaminated soil, existing frequently-used disturbance equipment is mainly turner, turner
Drive the swivel knife shaft mounted under rack to turn the implementation of heap body raw material by bearing, is fluffy, moving the operation such as heap；Common knife is throwing
Knife, the disturbance effect of the throwing knife soil big to the stronger soil of stickiness or humidity is poor, it is difficult to break up completely, volatility has
Organic pollutants loss is difficult, in addition, turner very flexible in confined space.Polishing apparatus is turned in patent CN203408977U uses
Soil is carried out to turn over throwing, promotes the volatilization of volatile organic matter, while the device sprays potassium permanganate into soil to improve dirt
The removal rate of organic matter in soil is contaminated, but the turner is unsuitable for breaing up cohesive soil, and potassium permanganate is as Strong oxdiative
Agent, will also result in soil a degree of secondary pollution.Patent CN205851548U is equally turned over using soil to be cast for promoting
The volatile organic matter in soil is set to volatilize, this turns over polishing apparatus and is equally unsuitable for breaing up cohesive soil, and is needed before turning over throwing by soil
Bar stacking is piled, adds cost of labor.Patent CN202570291U crushes soil with screening machine, is sieved using broken
Point, then contaminated soil is subjected to repair process, for silty clay soil class contaminated soil, which is crushed using belt reamer,
But when if soil is relatively glutinous, water content is higher, be still not easy to sieve after being crushed with belt reamer, and Polluted Soil naturally in heaps after sieving
Earth is possible to cohere again blocking, is unfavorable for the progress of next step repair.Used in patent CN101972773A spiral
Stirring pyrolysis desorption system, the system by contaminated soil is heated and is made to enter after air preheat in the system with pollution
Soil is mixed, so that volatility/semi-volatile organic matter evaporates in contaminated soil, but it is spiral in the system
Blender can not break up cohesive soil, be unfavorable for the volatilization of VOCs in cohesive soil, and the system needs to add soil
Heat, adds running cost.
Currently for the room temperature desorption technique, there are fractional unit or individual to disclose the achievement in research of oneself.Patent
CN102974608A discloses a kind of chemical enhanced restorative procedure of organic polluted soil, and since this method is proposed repairing just to dirt
Quick lime is added in dye soil, then coordinates soil to turn over sieve apparatus and sieve is turned over to the soil progress intermittence for being mixed with quick lime to handle dirt
Soil is contaminated, reaches reparation target, but the 10-15% that the amount of the quick lime of this method addition is contaminated soil, the dosage is excessive,
Other noxious materials can be caused to produce, but will not be relatively low to temperature and high-water content viscous if the amount for reducing quick lime
The effect that property local products have been given birth to.Itd is proposed in patent CN103934262A, after volatility organic polluted soil, which enters, repairs the hangover phase,
A small amount of quick lime is added, continues to disturb, concentration and following is repaired until reaching, was added although this method solve quick lime
The problem of producing other harmful substances more, but it is still very long during cohesive soil is handled.
Utility model content
Technical problem to be solved in the utility model is for volatile organic matter in current ambient temperature desorption cohesive soil
Problem present in technique, there is provided a kind of system of room temperature desorption disposal volatile organic matter pollution cohesive soil, the system energy
Volatile organic contaminant in cohesive soil is effectively and quickly removed, remediation efficiency is high, quality is good, and soil will not be produced and appointed
What secondary pollution, the soil higher suitable for repairing stickiness.
A kind of system of room temperature desorption disposal volatile organic matter pollution cohesive soil, it is characterised in that：Including closed place
Put greenhouse, crushing and screening device, air-supply arrangement, exhaust collection processing unit；Wherein
The closed disposal greenhouse is closed structure, has closed logistics corridor, device, equipment, soil and work
Personnel can pass in and out the closed disposal greenhouse via the closed logistics corridor；
The crushing and screening device includes sieving approach scraper bowl, which, which has, can make it crush knife plate
The control circuit of the positive and negative Double-directional rotary of roller bearing, can sieve the mixture of contaminated soil and coarse sand, quick lime, crush, mix
Close and be aerated；
The air-supply arrangement includes air blower and admission line；
The exhaust collection processing unit includes exhaust collection pipeline, air-introduced machine, deduster and tail gas adsorption processing dress
Put.
Further, described admission line one end is connected with air blower, the other end by branch's admission line with it is closed
Greenhouse connection is disposed, the admission line gas outlet is distributed in the side wall of the closed disposal greenhouse；The exhaust collection processing
Exhaust collection pipeline one end of device is connected with air-introduced machine, and the other end is connected by bypass vent pipeline with closed disposal greenhouse,
The discharge duct air inlet is distributed in the top of the closed disposal greenhouse.
Further, the closed logistics corridor is equipped with plug-type two storied gate, is formed between buffering, door side placement fluid sealant
Bar, for the pollutant of anti-locking apparatus, equipment, soil and staff when disengaging in greenhouse in air to external diffusion.
Further, the exhaust air rate of air-introduced machine is bigger than the exhaust air rate of air blower in the exhaust collection processing unit, air inducing
The exhaust air rate of machine is the 105~110% of the exhaust air rate of air blower, the negative pressure state in the closed disposal greenhouse of maintenance, in reinforced soil
Pollutant loss, and pollutant in greenhouse in air is prevented to external diffusion.
Further, the part by weight is, coarse sand and quick lime gross weight account for the 5-9% of cohesive soil weight, coarse sand and
The ratio of quick lime can be adjusted according to soil regime.
Further, the closed disposal greenhouse length is 80-125 meters, and width is 30-50 meters, is highly 9-15 meters.
Further, the side wall of the closed disposal greenhouse and ceiling keep the temperature greenhouse with rock wool, are used for
Canopy temperature is kept, improves the efficiency of pollutant in soil loss.
Further, the admission line gas outlet be distributed in this it is closed disposal greenhouse side wall, apart from ground 500~
1000mm。
Further, the discharge duct air inlet port dimensions of the exhaust collection processing unit are 300mm*300mm, often
200~300m2An exhaust outlet is distributed with.
Further, the air inlet and exhaust outlet are mounted on general grille, prevent foreign matter from entering.
Technical solution is used by the utility model solves its technical problem：
1. contaminated soil is transported to closed disposal greenhouse, by coarse sand, quick lime with 5-9%（Dry ground mass ratio）Ratio throw
It is added in stickiness contaminated soil, can suitably increases the dispensing ratio of quick lime when soil moisture is larger, when viscosity bigger can be appropriate
Increase the dispensing ratio of coarse sand；The mode of quick lime and coarse sand is added into stickiness contaminated soil：（1）First thrown into cohesive soil
Overstriking sand, then add quick lime；（2）Quick lime is first added into cohesive soil, then adds coarse sand；（3）By coarse sand and quick lime
Launched after mixing into cohesive soil.
2. forced disturbance is carried out to contaminated soil and coarse sand, the mixture of quick lime with crushing and screening device.
3. while forced disturbance, mechanical air supply is carried out to closed disposal greenhouse with air-supply arrangement, promotes air in canopy
Circulation, reduces soil moisture content；Gas pushing quantity is slightly less than capacity, maintains greenhouse negative pressure, promotes volatility organic contamination in soil
The effusion of thing, and the polluted gas of discharge is collected and handled, to prevent external boundary's environment from causing secondary pollution.
4. soil carries out live backfill after repairing.
5. it is disposed after the polluted gas centralized collection gone out with exhaust collection processing unit to soil loss, after up to standard
Discharge.
The VOCs contaminated soil remediations intensifying method of the utility model has following beneficial effect compared with prior art：
1st, the technical program is the reinforcing disposal system for the cohesive soil of volatile organic matter pollution, using quick lime
Mixing with coarse sand is launched, and by forced disturbance, is increased porosity of soil, is reduced moisture content, strengthens the method for repairing effect, institute
With the higher soil treatment of stickiness that this method is polluted for volatile organic contaminant works well, and can strengthen room temperature solution
The effect of disposal volatile organic matter pollution cohesive soil is inhaled, shortens repairing efficiency.
2nd, soil and coarse sand, quick lime are sufficiently mixed by the technical program, greatly reduce the dosage of quick lime, to
The coarse sand and the ratio of quick lime total amount added in stickiness contaminated soil is 5-9%（Dry ground mass ratio）, reparation is can ensure that after use
Soil afterwards will not produce other accessory substances, also, this ratio that adds is adjusted for the soil of different viscositys and humidity
More flexibly, so, which can be used for the contaminated soil of different stickiness so that and the use of quick lime and coarse sand is more reasonable,
There are good economy and environmental benefit.
3rd, 3 kinds of modes that quick lime and coarse sand are added into stickiness contaminated soil can be used in the technical program, can be according to dirt
Dye soil conditions are adjusted, and so can not only give full play to the effect of every kind of material, improve treatment effect, furthermore, it is possible to
The usage amount of quick lime and coarse sand is reduced, consumption is reduced, improves benefit.
4th, crushing and screening device selects sieving approach scraper bowl to carry out forced disturbance to contaminated soil in the technical program, relatively
For common turner, which has the control circuit for the positive and negative Double-directional rotary of roller bearing that can make its broken knife plate, such
Design makes the equipment rotary speed fast, comminuted strong；In addition, the high speed for crushing knife plate by the equipment rotates, it is more favorable for giving birth to
The mixing of lime etc. and soil；By co-grinding, beneficial to the contact area of increase soil and air, it is more conducive to wave in soil
The loss of hair property organic pollution；Common turner needs to pile Polluted Soil into the bar pile of suitable size, and sieving approach scraper bowl
Stacking no requirement (NR) to Polluted Soil, saved cost and manually.
Brief description of the drawings
Fig. 1 is that a kind of room temperature desorption disposal volatile organic matter that the utility model embodiment provides pollutes cohesive soil
System top view；
Fig. 2 is that a kind of room temperature desorption disposal volatile organic matter that the utility model embodiment provides pollutes cohesive soil
System side view；
Fig. 3 is that benzene pollutant concentration situation of change is illustrated in soil under different construction conditions in the utility model embodiment
Figure；
Fig. 4 is that ethylbenzene pollutant concentration situation of change is illustrated in soil under different construction conditions in the utility model embodiment
Figure；
Fig. 5 is that xylene pollution thing concentration situation of change is shown in soil under different construction conditions in the utility model embodiment
It is intended to；
Brief description of the drawings：
1 closed processes greenhouse
Between 2 bufferings
3 outer side pull-push doors
Side pull-push door in 4
5 exhaust collection pipelines
6 discharge duct air inlets
7 admission lines
8 admission line gas outlets
9 crushing and screening devices
10 air blowers
11 air-introduced machines, deduster and tail gas adsorption device.
Embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, are further elaborated the utility model.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
VOCs-contaminated Soils are dug out；The closed outer side pull-push door of disposal greenhouse is opened, contaminated soil is transported
Between buffering, outer side pull-push door is closed, side pull-push door in unlatching, transports closed disposal greenhouse by contaminated soil, close inner side and push and pull
Door.Contaminated soil is fallen in disposal area, by coarse sand, quick lime with 5-9%（Dry ground mass ratio）Ratio be added to stickiness pollution
In soil, the dispensing ratio of quick lime can be suitably increased when soil moisture is larger, when viscosity bigger can suitably increase the throwing of coarse sand
Put ratio；Quick lime and coarse sand can be added into stickiness contaminated soil with the following methods：Coarse sand is first added into cohesive soil
Add again quick lime, first added into cohesive soil quick lime add again coarse sand, will coarse sand and quick lime mix after launch to glutinous
In property soil.Forced disturbance is carried out to contaminated soil and coarse sand, the mixture of quick lime with crushing and screening device.In forced disturbance
While, mechanical air supply is carried out to closed disposal greenhouse with air-supply arrangement, increases porosity of soil, reduces soil moisture content；Send
Tolerance is slightly less than capacity, maintains greenhouse negative pressure, promotes the effusion of volatile organic contaminant in soil, and at the same time to discharge
Polluted gas is collected and handles, and is discharged after up to standard.After pollutant in soil content is up to standard, stop disturbance, will be native after reparation
Earth carries out live backfill.
A kind of system of room temperature desorption disposal volatile organic matter pollution cohesive soil provided by the utility model can have
Effect, rapidly remove volatile organic contaminant in cohesive soil, and remediation efficiency is high, quality is good, soil will not be produced any
Secondary pollution, the soil higher suitable for repairing stickiness.
The method of the utility model includes：The coarse sand and the ratio of quick lime total amount added into stickiness contaminated soil is 5-
9%, the ratio of coarse sand and quick lime can be adjusted according to soil regime；Quick lime and coarse sand are added into stickiness contaminated soil
Mode include three kinds：Coarse sand is first added into cohesive soil to add quick lime again, first add quick lime into cohesive soil again
Add coarse sand, will be launched after coarse sand and quick lime mixing into cohesive soil；Crushing and screening device is to contaminated soil and coarse sand, life
The mixture of lime and carry out forced disturbance forcing frequency be 2h/ times.
Embodiment 1
Fig. 1 is that a kind of room temperature desorption disposal volatile organic matter that the utility model embodiment provides pollutes cohesive soil
One preferred embodiment top view of system, Fig. 2 are the side view of the preferred embodiment.As shown in Figure 1 and Figure 2, which includes close
Close processing greenhouse 1, buffering between 2, outer side pull-push door 3, interior side pull-push door 4, exhaust collection pipeline 5, discharge duct air inlet 6, into
Feed channel 7, admission line gas outlet 8, crushing and screening device 9, air blower 10, air-introduced machine, deduster and tail gas adsorption device 11,
Wherein
The closed disposal greenhouse 1 is closed structure, has closed logistics corridor, device, equipment, soil and work
Personnel can pass in and out the closed disposal greenhouse via the closed logistics corridor；
The crushing and screening device 9 includes sieving approach scraper bowl, which, which has, can make its crush knife plate
The positive and negative Double-directional rotary of roller bearing control circuit, contaminated soil can be sieved, be crushed, mix with aeration；
The air-supply arrangement includes air blower 10 and admission line 7；
The exhaust collection processing unit includes exhaust collection pipeline 5, air-introduced machine, deduster and tail gas adsorption processing dress
Put 11.
Wherein, described 7 one end of admission line is connected with air blower 10, and the other end passes through branch's admission line and closed place
Put greenhouse 1 to connect, the admission line gas outlet 8 is distributed in the side wall of the closed disposal greenhouse；The exhaust collection processing
5 one end of exhaust collection pipeline of device is connected with air-introduced machine, and the other end is connected by bypass vent pipeline with closed disposal greenhouse,
The discharge duct air inlet 6 is distributed in the top of the closed disposal greenhouse.
Wherein, the closed logistics corridor is equipped with plug-type two storied gate, is formed 2 between buffering, outer side pull-push door 3, inner side push away
Sliding door 4 door side placement sealing joint strip, for anti-locking apparatus, equipment, soil and staff when disengaging when greenhouse in air
In pollutant to external diffusion.
Wherein, the exhaust air rate of the air-introduced machine is the 107% of the air output of air blower 10.
Wherein, the part by weight is that coarse sand and quick lime gross weight account for the 8% of cohesive soil weight.
Wherein, the closed disposal greenhouse length is 108 meters, and width is 40 meters, is highly 12 meters.
Wherein, the side wall of the closed disposal greenhouse 1 and ceiling have rock wool.
Wherein, the admission line gas outlet 8 is distributed in the sidewall bottom of the closed disposal greenhouse, apart from ground
750mm。
Wherein, 6 size of discharge duct air inlet is 300mm*300mm, per 230m2A discharge duct is distributed with
Air inlet.
Wherein, the air inlet 6 and gas outlet 8 are mounted on general grille, prevent foreign matter from entering.
Wherein, the forcing frequency of the crushing and screening device 9 is 2h/ times, day output 1500m3。
Embodiment object：The cohesive soil of volatile organic matter contaminated area in certain chemical plant, pollutant are benzene, ethylbenzene, two
Toluene.The contaminated soil is dug out, is placed in same room temperature desorption disposal greenhouse, detects pollutant initial concentration：Detection pollution
Thing is benzene, ethylbenzene, dimethylbenzene, and the benzene initial concentration that is averaged is 387mg/kg, and the ethylbenzene initial concentration that is averaged is 1780mg/kg, diformazan
The benzene initial concentration that is averaged is 1330mg/kg.The contaminated soil is divided into 4 parts of equivalent, in heap to different disposal areas, respectively
Handled.
The method that region 1 uses is as follows, and 3% coarse sand and 5% quick lime are mixed, are added on contaminated soil, then
Carry out soil forced disturbance with crushing and screening device, it is every 2 it is small when disturbance once；
Region 2 using method it is as follows, only 5% quick lime is added in contaminated soil, then with crushing and screening device into
Row soil forced disturbance, it is every 2 it is small when disturbance once；
Region 3 is as follows using method, and only 3% coarse sand is added in contaminated soil, is then carried out with crushing and screening device
Soil forced disturbance, it is every 2 it is small when disturbance once；
Region 4 is as follows using method, and soil forced disturbance is carried out with crushing and screening device, it is every 2 it is small when once.
Next pollutant concentration in this 4 regional soils is monitored, it is every 6 it is small when detection once.As a result see the table below
1- tables 3：
The concentration change of benzene in 1 contaminated soil of table
The concentration change of ethylbenzene in 2 contaminated soil of table
The concentration change of dimethylbenzene in 3 contaminated soil of table
By Fig. 3-Fig. 5 as it can be seen that either under different pollutants or different construction conditions, coming into effect early period,
Pollutant concentration in soil declines rapid；As pollutant in soil concentration reduces, pollutant in soil concentration decrease speed
Ease up.Wherein, the concentration change to benzene is analyzed, and table 1 and Fig. 4 are shown, 1 decrease speed of region is most fast, in same sampling
The pollutants removal rate highest at time point, region 2 are taken second place, and third, 4 effect of region is worst in region 3；Processing pollutant early period is dense
Degree is quick lower by decrease speed：1 ＞ regions of region, 2 ＞ regions, 3 ＞ regions 4, same pollutant concentration drop to 50mg/kg, area
When domain 1 is smaller than region 2 fast 3, when smaller than region 3 fast 7, when smaller than region 4 fast 10；When 18h, the removal rate in region 1 reaches
To 94.83%, 2 removal rate of region reaches 92.76%, and 3 removal rate of region reaches 88.37%, and 4 removal rate of region reaches 85.53%.
Ethylbenzene, dimethylbenzene are identical with the concentration variation tendency of benzene, illustrate to have no otherness in different VOCs species.
By the result of preferred embodiment above as it can be seen that by quick lime and the processed contaminated soil of coarse sand, in this reality
In system with new offer, either removing speed or removal rate has obvious raising.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
- A kind of 1. system of room temperature desorption disposal volatile organic matter pollution cohesive soil, it is characterised in that：Including closed disposal Greenhouse, crushing and screening device, air-supply arrangement, exhaust collection processing unit；The closed disposal greenhouse is closed structure, has closed logistics corridor, device, equipment, soil and staff The closed disposal greenhouse can be passed in and out via the closed logistics corridor；The crushing and screening device includes sieving approach scraper bowl, which has the roller bearing that can make its broken knife plate The control circuit of positive and negative Double-directional rotary, contaminated soil can be sieved with the mixture of coarse sand, quick lime, crushed, mix with Aeration；The air-supply arrangement includes air blower and admission line；The exhaust collection processing unit includes exhaust collection pipeline, air-introduced machine, deduster and tail gas absorbing treatment device.
- 2. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that：Described admission line one end is connected with air blower, and the other end is connected by branch's admission line with closed disposal greenhouse, The admission line gas outlet is distributed in the side wall of the closed disposal greenhouse；Exhaust collection pipeline one end of the exhaust collection processing unit is connected with air-introduced machine, and the other end passes through bypass vent pipe Road is connected with closed disposal greenhouse, and the discharge duct air inlet is distributed in the top of the closed disposal greenhouse.
- 3. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The closed logistics corridor is equipped with plug-type two storied gate, is formed between buffering, and door side placement sealing joint strip, for anti-locking apparatus, sets The pollutant of standby, soil and staff when disengaging in greenhouse in air is to external diffusion.
- 4. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The exhaust air rate of air-introduced machine is the 105~110% of the exhaust air rate of air blower.
- 5. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The closed disposal greenhouse length is 80-125 meters, and width is 30-50 meters, is highly 9-15 meters.
- 6. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The side wall and ceiling of the closed disposal greenhouse keep the temperature greenhouse with rock wool, for keeping canopy temperature, carry The efficiency of high pollutant in soil loss.
- 7. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The admission line gas outlet is distributed in the side wall of the closed disposal greenhouse, apart from 500~1000mm of ground.
- 8. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The discharge duct air inlet port dimensions of the exhaust collection processing unit are 300mm*300mm, every 200~300m2It is distributed with one A air inlet.
- 9. the system of room temperature desorption disposal volatile organic matter pollution cohesive soil as claimed in claim 1, it is characterised in that： The air inlet and gas outlet is mounted on general grille, prevents foreign matter from entering.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036663A (en) * | 2019-12-17 | 2020-04-21 | 中科鼎实环境工程有限公司 | Soil normal temperature turns over throwing device |
| CN112090946A (en) * | 2020-08-27 | 2020-12-18 | 汪永强 | Heavy metal pollution administers device |
-
2017
- 2017-08-14 CN CN201721012939.5U patent/CN207238746U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036663A (en) * | 2019-12-17 | 2020-04-21 | 中科鼎实环境工程有限公司 | Soil normal temperature turns over throwing device |
| CN112090946A (en) * | 2020-08-27 | 2020-12-18 | 汪永强 | Heavy metal pollution administers device |
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