CN105170635A - Automation system for repairing contaminated soil - Google Patents
Automation system for repairing contaminated soil Download PDFInfo
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- CN105170635A CN105170635A CN201510529558.3A CN201510529558A CN105170635A CN 105170635 A CN105170635 A CN 105170635A CN 201510529558 A CN201510529558 A CN 201510529558A CN 105170635 A CN105170635 A CN 105170635A
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- soil
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Abstract
The invention relates to an automation system for repairing contaminated soil, and belongs to the field of environmental protection machinery. The automation system comprises a soil stirring device, wherein a feed port and a discharge port are formed in the soil stirring device; an absorbent feeding hopper is arranged above the feed port; a conveyer is arranged below the discharge port; a magnetic separation device is arranged on the conveyer; a soil liquefying device is arranged below the tail end of the conveyer; and the soil liquefying device is connected with soil repairing equipment through a pipe. The automation system for repairing contaminated soil has such advantages as high automation degree and excellent treatment effect.
Description
Technical field
the present invention relates to a kind of automatic system for repairing polluted soil, belong to field of environment protection.
Background technology
Nearly 20 years, China was along with industrialization, urbanization, the deepening constantly of the intensive process in rural area, and soil contamination problem grows with each passing day.Soil pollution situation go from bad to worse and characteristic that soil is non-renewable becomes a great problem that restriction China continues development, solve soil contamination problem become China realize sustainable development in the urgent need to.
The conventional processing method of current soil pollution is as follows:
1 chemical leaching method: eluent is injected in contaminated soil or deposit, the process of pollutant in wash-out and cleaning soil.This technology has flexible operation, and repairing effect is stablized, and the cycle is short, the advantage that efficiency is high, but this technology scope of application is limited, and cost is high and can cause secondary pollution.
2 bioanalysises: utilize microbiological deterioration to carry out dye reparation to soil dirt, be a kind of recovery technique common in life, the method treatment effect is good, disposal cost is low, can not cause secondary pollution, but repair speed comparatively slowly, reaching regulation and control level needs considerable time.
3 thermal desorptions: in heating soil, organic contamination component is to sufficiently high temperature, make it evaporate and the process be separated with soil media.Thermal desorption technology has the advantages such as pollutant process range is wide, equipment is removable, the rear soil of reparation is recycling, but the equal dependence on import of domestic current capital equipment, cause equipment investment cost high.
Chinese utility model patent publication number is: CN202655328U, publication date is: 2013-01-09, it discloses a kind of integral type contaminated soil fragmentation mixing prosthetic appliance, with soil breaking in the processing procedure solving heavy-metal contaminated soil not fully, uneven with stabilization agent mix and blend technical problem.
Chinese utility model patent is shown in that publication number is: CN202877224U, publication date is 2013-04-17, it discloses a kind of dosing, driving, fragmentation, be uniformly mixed integral type contaminated soil in-situ immobilization equipment, solved soil breaking in the processing procedure of heavy metal and organic material contaminated soil abundant, uneven with stabilization agent mix and blend not, can not broken, mix, stir while dosing, technical problem that dystopy processing cost is high;
The equipment that above two patents provide all is applicable to solidification and the stabilization processes of contaminated soil, its principle is mixed with contaminated soil by appropriate heavy metal stabilization medicament, Heavy Metals in Contaminated Soils and stabilization agent are reacted, make that it is water-soluble with the stability improving heavy metal contaminants, diffusivity and biological effectiveness reduce, thus alleviate its harm, but the heavy metal after overcuring, the easy reactivation when environmental condition changes, the pollutant such as heavy metal and agricultural chemicals likely pollutes soil again.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of thermal desorption prosthetic appliance of organic soil pollution, utilize high temperature and high pressure gas that the volatile type organic in soil is overflowed, then this type of air is processed by vent gas treatment pond.
To achieve these goals, the present invention is by the following technical solutions:
For an automatic system for repairing polluted soil, comprise soil agitating device, described soil agitating device is provided with charging aperture and discharging opening, and the top at described charging aperture place is provided with adsorbent and throws in hopper; The below of described discharging opening is provided with a conveyer, and conveyer is provided with a magnetic separating device; Soil liquefaction device is provided with below the end of conveyer; Soil liquefaction device is connected with soil remediation equipment by pipeline;
Described soil remediation equipment comprises a shell, and enclosure is become upper and lower two parts by a baffle for separating, and be positioned at the vent gas treatment pond of its upper side and the reactive tank of bottom respectively, vent gas treatment pond is connected by exhaust collection pipe with between reactive tank;
Soil liquefaction device comprises mixing pit, and mixing pit is provided with water inlet pipe and slush pump; Water inlet pipe is provided with the first magnetic valve, and slush pump is connected with mixing pit by pipeline; Viscosity sensor is provided with in mixing pit, described viscosity sensor comprises data acquisition components and change-over circuit parts, described data acquisition components is connected with change-over circuit parts, in described mixing pit, corresponding described viscosity sensor at least arranges a notch, and described data acquisition components is connected with viscosity sensor by this notch;
The sidewall of described reactive tank is provided with the soil charging aperture be connected with described soil liquefaction device, the gas feed be connected with high-temperature gas release device and liquid level sensor, and reactive tank inside is provided with agitator, and the bottom of reactive tank is provided with Dump gate;
The sidewall in described vent gas treatment pond is provided with treatment fluid import and treatment fluid outlet; One end of described exhaust collection pipe is positioned at reactive tank, and the other end is positioned at vent gas treatment pond, and one end that the exhaust collection Guan Yuyi being positioned at vent gas treatment pond is arranged on the snakelike blast pipe of reaction tank bottom is connected; The tube wall of described snakelike blast pipe is provided with steam vent, and gas enters vent gas treatment pond by the steam vent of snakelike blast pipe and processes, and the gas after process is discharged from treatment pond upper end open; Described treatment pond upper end open place is provided with two exhaust outlets, is first row gas port and second exhaust port respectively, and described first row gas port is connected with outside atmosphere by pipeline; Described second exhaust port is connected with the treatment fluid in vent gas treatment pond by pipeline; Gas sensor and the second magnetic valve is provided with in the described pipeline be connected with first row gas port;
Described agitator comprises shaft and drive motors;
Also comprise control assembly, described control assembly respectively with described viscosity sensor, the first magnetic valve, slush pump, liquid level sensor, gas sensor, the second magnetic valve and drive motors control connection.
Further, shaft is provided with paddle, and the surface of paddle is provided with some projections.
Further, described snakelike blast pipe is double-decker.
Further, described exhaust collection pipe is provided with the 3rd magnetic valve, described 3rd magnetic valve and Soil K+adsorption equipment control connection.
Further, the sidewall of described reactive tank is provided with soil sample mouth.
The invention has the beneficial effects as follows:
The first, agitator is equipped with in the present invention, can fully make high temperature and high pressure gas contact with Soil slurry, improves treatment effeciency.
The second, reactive tank is provided with soil sample mouth, and the testing result that soil quality detects is delivered to Dump gate on-off controller.When testing result meets the requirements, Dump gate discharging opened by Dump gate on-off controller, and this process automation degree is high, automatically can carry out next step soil treatment after discharging completes.
Three, the top of this equipment is provided with two exhaust outlets, gas sensor and the second magnetic valve is provided with in one of them pipeline be connected with air, gas sensor detects the composition of be vented body in real time, and correlation detection signal is sent to controller, the data that gas sensor detects by controller are compared with the data arranged in advance, when gas is qualified, then open described second magnetic valve; If gas is defective, then the second magnetic valve is failure to actuate, and gas to be reentered treatment fluid by pipeline from described second exhaust port and processes, and ensure that be vented body does not pollute air.
Four, this equipment blast pipe is snakelike double-decker, and tube wall is provided with steam vent, increases vent gas treatment amount.
Five, this equipment exhaust collection pipe is equipped with magnetic valve, prevents from liquid backflow and can regulate and control tail gas entering treatment pond flow, thus controls vent gas treatment quality.
accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention for the automatic system of repairing polluted soil;
Fig. 2 is soil pollution prosthetic appliance 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, charging aperture; 2, air intlet; 3, treatment fluid entrance; 4, treatment fluid outlet; 5, agitator; 5-1, shaft; 5-2, paddle, 5-3, projection; 6, Dump gate; 7, exhaust collection pipe; 8, snakelike blast pipe; 9, reactive tank; 10, vent gas treatment pond; 12, the 3rd magnetic valve; 13, soil sample mouth; 14, first row gas port; 15, second exhaust port; 100, hopper thrown in by adsorbent; 200, soil agitating device; 300, conveyer; 400, magnetic separating device; 500, soil liquefaction device; 600, soil remediation equipment.
Detailed description of the invention
As shown in Figure 1, be soil pollution prosthetic appliance structure chart of the present invention.
As shown in Figure 1, a kind of automatic system for repairing polluted soil, comprises soil agitating device 200, and described soil agitating device 200 is provided with charging aperture and discharging opening, and the top at described charging aperture place is provided with adsorbent and throws in hopper 100; The below of described discharging opening is provided with a conveyer 300, and conveyer 300 is provided with a magnetic separating device 400; Soil liquefaction device 500 is provided with below the end of conveyer 300; Soil liquefaction device 500 is connected with soil remediation equipment 600 by pipeline;
As shown in Figure 2, described soil remediation equipment 600 comprises a shell, enclosure is become upper and lower two parts by a baffle for separating, is respectively to be positioned at the vent gas treatment pond 10 of its upper side and the reactive tank 9 of bottom, is connected between vent gas treatment pond 10 with reactive tank 9 by exhaust collection pipe 7;
Soil liquefaction device (500) comprises mixing pit, and mixing pit is provided with water inlet pipe and slush pump; Water inlet pipe is provided with the first magnetic valve, and slush pump is connected with mixing pit by pipeline; Viscosity sensor is provided with in mixing pit, described viscosity sensor comprises data acquisition components and change-over circuit parts, described data acquisition components is connected with change-over circuit parts, in described mixing pit, corresponding described viscosity sensor at least arranges a notch, and described data acquisition components is connected with viscosity sensor by this notch;
The sidewall of described reactive tank 9 is provided with the soil charging aperture 1 be connected with described soil liquefaction device, the gas feed 2 be connected with high-temperature gas release device and liquid level sensor, and described liquid level sensor responds to the amount of pouring into of mud in described reactive tank;
Reactive tank 9 inside is provided with agitator 5, and the bottom of reactive tank 9 is provided with Dump gate 6;
The sidewall in described vent gas treatment pond 10 is provided with treatment fluid import 3 and treatment fluid outlet 4; One end of described exhaust collection pipe 7 is positioned at reactive tank 9, and the other end is positioned at vent gas treatment pond 10, and the one end of the snakelike blast pipe 8 that the exhaust collection pipe 7 and being positioned at vent gas treatment pond 10 is arranged on bottom reactive tank 9 is connected; The tube wall of described snakelike blast pipe 8 is provided with steam vent, and gas enters vent gas treatment pond by the steam vent of snakelike blast pipe 8 and processes, and the gas after process is discharged from treatment pond upper end open; Described treatment pond upper end open place is provided with two exhaust outlets, and be first row gas port 14 and second exhaust port 15 respectively, described first row gas port 14 is connected with outside atmosphere by pipeline; Described second exhaust port 15 is connected with the treatment fluid in vent gas treatment pond 10 by pipeline; Gas sensor and the second magnetic valve is provided with in the described pipeline be connected with first row gas port 14;
Described agitator 5 comprises shaft and drive motors;
Also comprise control assembly, described control assembly respectively with described viscosity sensor, the first magnetic valve, slush pump, liquid level sensor, gas sensor, the second magnetic valve and drive motors control connection.
The operation principle of present system is:
S1, broken soil enter from the charging aperture soil agitating device 200, and the adsorbent above charging aperture is thrown in hopper and thrown in the adsorbent that is magnetic, and magnetic adsorbent also enters soil agitating device 200 from charging aperture;
S2, contaminated soil and magnetic adsorbent out fall into afterwards on conveyer 300 after mix and blend in soil agitating device 200 from discharging opening, open magnetic separating device 400, in this separator 400, magnetic rod body rotates with certain rotating speed, the soil being mixed with magnetic adsorbent is sent to the below of magnetic rod body by conveyer 300, magnetic adsorbent is attracted on magnetic rod body, realizes being separated of magnetic adsorbent and soil;
S3, soil continue the machine that is transferred and are delivered in soil liquefaction device 500 forward, soil mixes with water in soil liquefaction device 500, and control assembly controls the first magnetic valve on water inlet pipe, after viscosity reaches requirement, close the first magnetic valve, drive slush pump to slurry conveyed in reactive tank 9; Liquid level sensor sends detection signal to control assembly after mud being detected, and control assembly controls drive motors and rotates, and drive motors drives shaft to stir; Meanwhile, high temperature and high pressure gas enters reactive tank 9 from air intlet 2, utilizes agitator 5 pairs of Soil slurries to stir, makes high temperature and high pressure gas fully contact Soil slurry, accelerates organic pollution effusion;
The air with pollutant produced in S4, reactive tank 9 is collected by the exhaust collection pipe 7 be located in reactive tank 9, then enters vent gas treatment pond 10 through exhaust collection pipe 7 outlet;
S5, reactive tank 9 outside are provided with soil sample mouth 13, Soil K+adsorption equipment is utilized to monitor soil, the testing result that soil quality detects is delivered on Dump gate 6 on-off controller, by presetting the processing requirements to soil quality, when testing result meets the requirements, Dump gate 6 on-off controller is opened Dump gate 6 and is carried out discharging.
The top in S6, vent gas treatment pond 10 is provided with two exhaust outlets, the first row gas port 14 and second exhaust port 15 that are connected with air respectively, wherein, gas sensor and the second magnetic valve is provided with in the pipeline of first row gas port 14, gas sensor detects the composition of be vented body in real time, and correlation detection signal is sent to controller, and the data that gas sensor detects by controller are compared with the data arranged in advance, when gas is qualified, then open described second magnetic valve; If gas is defective, then the second magnetic valve is failure to actuate, and gas enters from described second exhaust port 15, is reentered in treatment fluid process by pipeline, ensure that be vented body does not pollute air.
As the further preferred version of a kind of automatic system for repairing polluted soil of the present invention, exhaust collection pipe 7 is equipped with the 3rd magnetic valve the 12, three magnetic valve 12 and both prevented liquid backflow, can exhaust flow be controlled simultaneously.Exhaust collection pipe 7 outlet is connected with snakelike blast pipe 8, and snakelike blast pipe 8 is located at bottom vent gas treatment pond 10.
As shown in Figure 3, be the agitator 5 of soil pollution prosthetic appliance of the present invention, this agitator 5 surface is also provided with raised points, increases mixing effect, and then improves reactive tank 9 efficiency.
As shown in Figure 4, be the snakelike blast pipe 8 of soil pollution prosthetic appliance of the present invention, manage as two-layer, be arranged on bottom treatment pond 10, tube wall has steam vent, can fully make tail gas contact with reactant liquor, improve treatment effect.
Claims (5)
1. for an automatic system for repairing polluted soil, it is characterized in that, comprise soil agitating device (200), described soil agitating device (200) is provided with charging aperture and discharging opening, and the top at described charging aperture place is provided with adsorbent and throws in hopper (100); The below of described discharging opening is provided with a conveyer (300), and conveyer (300) is provided with a magnetic separating device (400); Soil liquefaction device (500) is provided with below the end of conveyer (300); Soil liquefaction device (500) is connected with soil remediation equipment (600) by pipeline;
Described soil remediation equipment (600) comprises a shell, enclosure is become upper and lower two parts by a baffle for separating, be be positioned at the vent gas treatment pond (10) of its upper side and the reactive tank (9) of bottom respectively, be connected by exhaust collection pipe (7) between vent gas treatment pond (10) with reactive tank (9);
Soil liquefaction device (500) comprises mixing pit, and mixing pit is provided with water inlet pipe and slush pump; Water inlet pipe is provided with the first magnetic valve, and slush pump is connected with mixing pit by pipeline; Viscosity sensor is provided with in mixing pit, described viscosity sensor comprises data acquisition components and change-over circuit parts, described data acquisition components is connected with change-over circuit parts, in described mixing pit, corresponding described viscosity sensor at least arranges a notch, and described data acquisition components is connected with viscosity sensor by this notch;
The sidewall of described reactive tank (9) is provided with the soil charging aperture (1) be connected with described soil liquefaction device, the gas feed (2) be connected with high-temperature gas release device and liquid level sensor, and described liquid level sensor responds to the amount of pouring into of mud in described reactive tank;
Reactive tank (9) inside is provided with agitator (5), and the bottom of reactive tank (9) is provided with Dump gate (6);
The sidewall of described vent gas treatment pond (10) is provided with treatment fluid import (3) and treatment fluid outlet (4); One end of described exhaust collection pipe (7) is positioned at reactive tank (9), the other end is positioned at vent gas treatment pond (10), and the one end of the snakelike blast pipe (8) that the exhaust collection pipe (7) and being positioned at vent gas treatment pond (10) is arranged on bottom reactive tank (9) is connected; The tube wall of described snakelike blast pipe (8) is provided with steam vent, and gas enters vent gas treatment pond by the steam vent of snakelike blast pipe (8) and processes, and the gas after process is discharged from treatment pond upper end open; Described treatment pond upper end open place is provided with two exhaust outlets, and be first row gas port (14) and second exhaust port (15) respectively, described first row gas port (14) is connected with outside atmosphere by pipeline; Described second exhaust port (15) is connected with the treatment fluid in vent gas treatment pond (10) by pipeline; Gas sensor and the second magnetic valve is provided with in the pipeline be connected with described first row gas port (14);
Described agitator (5) comprises shaft and drive motors;
Also comprise control assembly, described control assembly respectively with described viscosity sensor, the first magnetic valve, slush pump, liquid level sensor, gas sensor, the second magnetic valve and drive motors control connection.
2. the automatic system for repairing polluted soil according to claim 1, it is characterized in that, shaft is provided with paddle, and the surface of paddle is provided with some projections.
3. the automatic system for repairing polluted soil according to claim 1, is characterized in that, described snakelike blast pipe (8) is double-decker.
4. the automatic system for repairing polluted soil according to claim 1, is characterized in that, described exhaust collection pipe (7) is provided with the 3rd magnetic valve (12), described 3rd magnetic valve (12) and Soil K+adsorption equipment control connection.
5. the automatic system for repairing polluted soil according to claim 1, is characterized in that, the sidewall of described reactive tank (9) is provided with soil sample mouth (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510529558.3A CN105170635B (en) | 2015-08-26 | 2015-08-26 | A kind of automatic system for repairing polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510529558.3A CN105170635B (en) | 2015-08-26 | 2015-08-26 | A kind of automatic system for repairing polluted soil |
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| CN105170635A true CN105170635A (en) | 2015-12-23 |
| CN105170635B CN105170635B (en) | 2018-06-22 |
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| CN201510529558.3A Active CN105170635B (en) | 2015-08-26 | 2015-08-26 | A kind of automatic system for repairing polluted soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983571A (en) * | 2016-06-30 | 2016-10-05 | 无锡市太湖湖泊治理有限责任公司 | Polluted soil repairing system |
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Patent Citations (7)
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| JP2000061443A (en) * | 1998-08-18 | 2000-02-29 | Ohbayashi Corp | Device for separating and removing harmful material |
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| CN103962371A (en) * | 2014-05-12 | 2014-08-06 | 福建工程学院 | Nondestructive restoration method for polluted soil |
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| CN105983571A (en) * | 2016-06-30 | 2016-10-05 | 无锡市太湖湖泊治理有限责任公司 | Polluted soil repairing system |
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