A kind of removal soil pollutant equipment
Technical field
The present invention relates to a kind of removal soil pollutant equipment, belong to field of environment protection.
Background technology
Nearly 20 years, China was deepened constantly with industrialization, urbanization, the intensive process in rural area, soil contamination problem with
Day all increasings.The worsening of soil pollution situation and the non-renewable characteristic of soil, which become, to be restricted China and continues the one big of development
Problem, solve soil contamination problem have become China realize sustainable development there is an urgent need to.
The common processing method of soil pollution at present is as follows:1 chemical leaching method:By eluent be injected into contaminated soil or
In deposit, the process of elution and the pollutant in cleaning soil.The technology has operation flexible, and repairing effect is stablized, the period
Short, efficient advantage, still, the technology use scope are limited, of high cost and can cause secondary pollution.
2 bioanalysis:Pollution amelioration is carried out to soil using microbiological deterioration, is that one kind common in life is repaiied
Recovering technology, this method high treating effect, processing cost is low, will not cause secondary pollution, but reparation rate is slower, reaches regulation and control water
It is flat to need for quite a long time.
3 thermal desorptions:Organic contamination group assigns to sufficiently high temperature in heating soil, make its evaporate and with soil media phase
The process of separation.Thermal desorption technology have pollutant process range is wide, equipment is removable, repair after soil it is recycling etc. excellent
Point, but domestic capital equipment at present all relies on import, leads to equipment investment cost height.
Application No. is 201010215971.X, denomination of invention is a kind of low-temperature desorption restorative procedure for contaminated soil
Patent is made of, respectively three contaminated soil preparation stage, low-temperature desorption processing stage, tail gas treatment stage steps:It will be dirty
After contaminating soil transport to low-temperature desorption workshop, the multiple strip Tu Duo of Zinc fractions are made by equipment;Pass through soil turning device
Intermittent turning is carried out to Tu Duo, so that the pollutant in soil is volatilized and removes, and periodic detection is carried out to the soil after turning;It is logical
It crosses centrifugal exhaust fan to export the gas for carrying pollutant after volatilization, after bag-type dust and the absorption of three way activity charcoal, realizes tail
Gas cleaning discharge.This method repair time is longer, and due to being volatilized using nature, pollutant removal is incomplete, and treatment effect is paid no attention to
Think.
Application No. is 201210383050.3, a kind of entitled contaminated soil remediation system adopting recirculating and method, it discloses
It is a kind of using thermal desorption method handle contaminated soil method and thermal desorption device, although from function solve equipment do not depend on into
The technical issues of mouth, but device overall structure is more complex, after long-play, efficiency reduces quickly, and treatment effect is undesirable,
And automation degree of equipment is low.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of heat of the higher organic soil pollution of the degree of automation
Prosthetic appliance is desorbed, so that the volatile type organic in soil is escaped using high temperature and high pressure gas, then passes through such air
Vent gas treatment pond is handled.
To achieve the goals above, the present invention uses following technical scheme:
A kind of removal soil pollutant equipment, including soil liquefaction device and soil remediation equipment;
Soil liquefaction device includes mixing pit, water inlet pipe and slush pump;Viscosity sensor is equipped in mixing pit, on water inlet pipe
Equipped with the first solenoid valve, slush pump is connect by pipeline with mixing pit;
The soil remediation equipment includes a shell, and enclosure is separated into upper and lower two parts by a partition board, is respectively
Positioned at the vent gas treatment pond of upper side and the reactive tank of lower part, connected by exhaust gas collecting pipe between vent gas treatment pond and reactive tank
It connects;
The side wall of the reactive tank is equipped with the soil feed inlet being connect with the soil liquefaction device, is released with high-temperature gas
Gas feed and the liquid level sensor of equipment connection are put, the liquid level sensor incudes pouring into for mud in the reactive tank
Amount;
Reactive tank is internally provided with blender, and the bottom of reactive tank is equipped with Dump gate;The Dump gate includes doorframe, slides and lead
Rail, slide plate and sled drive mechanism, the doorframe are equipped with rail plate, and the sled drive mechanism drives the slide plate in institute
It states and is slided on rail plate to open or close Dump gate;
The side wall upper part in the vent gas treatment pond is equipped with treatment fluid entrance, and lower sidewall is exported equipped with treatment fluid;The tail
One end of gas collecting pipe is located in reactive tank, and the other end is located in vent gas treatment pond, the exhaust collection being located in vent gas treatment pond
Guan Yuyi is arranged to be connected in one end of the snakelike exhaust pipe in vent gas treatment bottom of pond portion;The tube wall of the snakelike exhaust pipe is equipped with row
Stomata, gas enter vent gas treatment pond by the gas vent of snakelike exhaust pipe and are handled, and treated gas is from vent gas treatment
Pond upper end opening discharge;The vent gas treatment Chi Shangduankaikouchu is set there are two exhaust outlet, is first row gas port and second respectively
Exhaust outlet, the first row gas port are connected by pipeline with outside atmosphere;The second exhaust port passes through pipeline and vent gas treatment
Treatment fluid in pond is connected;
Gas sensor and second solenoid valve are equipped in the pipeline being connect with the first row gas port;
The blender includes agitating shaft and driving motor;
Further include control unit, the control unit respectively with the viscosity sensor, the first solenoid valve, slush pump, liquid
Level sensor, gas sensor, second solenoid valve and driving motor control connection.
Further, agitating shaft is equipped with paddle, and the surface of paddle is equipped with several protrusions.
Further, the snakelike exhaust pipe is double-layer structure.
Further, the exhaust gas collecting pipe is equipped with third solenoid valve, the third solenoid valve and Soil K+adsorption equipment
Control connection.
Further, the side wall of the reactive tank is equipped with soil sample mouth.
The beneficial effects of the invention are as follows:
The first, the present invention is equipped with blender, fully high temperature and high pressure gas can be made to be contacted with Soil slurry, improves processing effect
Rate.
The second, reactive tank is equipped with soil sample mouth, and the testing result of soil quality detection is transmitted to the control of discharging door switch
Device.When testing result meets the requirements, Dump gate switch controller automatically controls sled drive mechanism and opens Dump gate discharging.The mistake
Process automation degree is high, can carry out the soil treatment of next step after the completion of discharging automatically.
Third, this equipment exhaust pipe are snakelike double-layer structure, and tube wall is equipped with gas vent, increases vent gas treatment amount.
4th, it is set at the top of this equipment there are two exhaust outlet, air-sensitive biography is equipped in one of them pipeline being connected with air
Sensor and second solenoid valve, gas sensor detects the composition of be vented body in real time, and correlation detection signal is sent to control
The data that gas sensor detects are compared with data set in advance for device, controller, when gas qualification, then described in opening
Second solenoid valve;If gas is unqualified, second solenoid valve is failure to actuate, gas from the second exhaust port by pipeline again into
Enter in treatment fluid and handled, ensure that be vented body does not pollute air.
5th, this equipment exhaust gas collecting pipe is equipped with solenoid valve, prevents from liquid reflux and can regulate and control tail gas entering vent gas treatment
Pond flow, to control vent gas treatment quality.
Description of the drawings:
Fig. 1 is soil pollution prosthetic appliance structure chart of the present invention;
Fig. 2 is soil pollution prosthetic appliance Dump gate structure chart of the present invention;
Fig. 3 is soil pollution prosthetic appliance agitator structure figure of the present invention;
Fig. 4 is soil pollution prosthetic appliance coiled pipe structure chart of the present invention.
Wherein, 1, feed inlet;2, air intlet;3, treatment fluid entrance;4, treatment fluid exports;5, blender;5-1, stirring
Axis;5-2, paddle, 5-3, protrusion;6, Dump gate;6-1, slide plate;6-2, doorframe;6-3, rail plate;7, exhaust gas collecting pipe;
8, snakelike exhaust pipe;9, reactive tank;10, vent gas treatment pond;12, third solenoid valve;13, soil sample mouth;14, first exhaust
Mouthful;15, second exhaust port.
Specific implementation mode
It is soil pollution prosthetic appliance structure chart of the present invention as shown in Fig. 1.
A kind of removal soil pollutant equipment, including soil liquefaction device and soil remediation equipment;
Soil liquefaction device includes mixing pit, water inlet pipe and slush pump;Viscosity sensor is equipped in mixing pit, on water inlet pipe
Equipped with the first solenoid valve, slush pump is connect by pipeline with mixing pit;
The soil remediation equipment includes a shell, and enclosure is separated into upper and lower two parts by a partition board, is respectively
Reactive tank 9 positioned at the vent gas treatment pond 10 of upper side and lower part, passes through tail between vent gas treatment pond 10 and reactive tank 9
Gas collecting pipe 7 connects;
The side wall of the reactive tank 9 is equipped with the soil feed inlet 1 being connect with the soil liquefaction device and High Temperature Gas
The gas feed 2 of body release device connection and liquid level sensor, the liquid level sensor incude mud in the reactive tank
The amount of pouring into;
Reactive tank 9 is internally provided with blender 5, and the bottom of reactive tank 9 is equipped with Dump gate 6;
As shown in Fig. 2, the Dump gate 6 includes doorframe 6-2, rail plate 6-3, slide plate 6-1 and slide plate driving machine
Structure, the doorframe 6-2 are equipped with rail plate 6-3, and the sled drive mechanism drives the slide plate 6-1 to be led in the sliding
Rail 6-3
Upper sliding is to open or close Dump gate 6;
The side wall upper part in the vent gas treatment pond 10 is equipped with treatment fluid entrance 3, and lower sidewall is equipped with treatment fluid and exports 4;
One end of the exhaust gas collecting pipe 7 is located in reactive tank 9, and the other end is located in vent gas treatment pond 10, is located at vent gas treatment pond
The snakelike exhaust pipe 8 that exhaust gas collecting pipe 7 in 10 is arranged with one in 10 bottom of vent gas treatment pond is connected;The snakelike exhaust
The tube wall of pipe 8 is equipped with gas vent, and gas enters vent gas treatment pond by the gas vent of snakelike exhaust pipe 8 and handled, and locates
Gas after reason is discharged from vent gas treatment pond upper end opening;The vent gas treatment Chi Shangduankaikouchu is set there are two exhaust outlet, point
It is not first row gas port 14 and second exhaust port 15, the first row gas port 14 is connected by pipeline with outside atmosphere;It is described
Second exhaust port 15 is connected by pipeline with the treatment fluid in vent gas treatment pond 10;It is described to connect with first row gas port 14
Gas sensor and second solenoid valve are equipped in pipeline;
The blender 5 includes agitating shaft and driving motor;
Further include control unit, the control unit respectively with the viscosity sensor, the first solenoid valve, slush pump, liquid
Level sensor, gas sensor, second solenoid valve and driving motor control connection.
The contaminated soil processing procedure of present device is:Contaminated soil mixes in soil liquefaction device with water, control
Solenoid valve on soil liquefaction device described in component controls closes the first solenoid valve on water inlet pipe after viscosity reaches requirement,
Driving slush pump conveys mud into reactive tank 9;Liquid level sensor, which detects, sends detection signal to control unit after mud
Part, control unit control driving motor rotation, and driving motor drives agitating shaft to be stirred.
Meanwhile high temperature and high pressure gas enters reactive tank 9 from air intlet 2, is stirred Soil slurry using blender 5
It mixes, high temperature and high pressure gas is made to come into full contact with Soil slurry, accelerate organic pollution effusion.
9 outside of reactive tank is equipped with soil sample mouth 13, is monitored to soil using Soil K+adsorption equipment, soil quality
The testing result of detection is transmitted on 6 switch controller of Dump gate, by presetting the processing requirement to soil quality, when
Testing result meets the requirements, and Dump gate 6 carries out discharging.
The air with pollutant generated in reactive tank 9 is received by the exhaust gas collecting pipe 7 being located in reactive tank 9
Then collection enters vent gas treatment pond 10 through the outlet of exhaust gas collecting pipe 7.
The top in vent gas treatment pond 10 is set there are two exhaust outlet, is the first row gas port 14 being connected with air and the respectively
Two exhaust outlets 15, wherein gas sensor and second solenoid valve are equipped in the pipeline of first row gas port 14, gas sensor is real
When the be vented body of detection composition, and correlation detection signal is sent to controller, the number that controller detects gas sensor
It is compared according to data set in advance, when gas qualification, then opens the second solenoid valve;If gas is unqualified, the
Two solenoid valves are failure to actuate, and gas enters from the second exhaust port 15, is reentered in treatment fluid and is handled by pipeline,
It ensure that be vented body does not pollute air.
The further preferred embodiment of soil pollutant equipment is removed as the present invention, equipped with the in the exhaust gas collecting pipe 7
Three solenoid valves 12, third solenoid valve 12 both prevents liquid reflux, while can control exhaust flow.
As shown in Fig. 3, as present invention further optimization scheme, soil pollution prosthetic appliance of the present invention
Blender 5,5 surface of blender are additionally provided with raised points, increase mixing effect, and then improve 9 efficiency of reactive tank.
As shown in Fig. 4, as present invention further optimization scheme, soil pollution prosthetic appliance of the present invention
Snakelike exhaust pipe 8, it is two layers to manage, and is mounted on 10 bottom of vent gas treatment pond, has gas vent on tube wall, can fully make tail gas with it is anti-
It answers liquid to contact, improves treatment effect.