CN203124412U - Device for removing organic pollutants in contaminated soil - Google Patents
Device for removing organic pollutants in contaminated soil Download PDFInfo
- Publication number
- CN203124412U CN203124412U CN 201320100486 CN201320100486U CN203124412U CN 203124412 U CN203124412 U CN 203124412U CN 201320100486 CN201320100486 CN 201320100486 CN 201320100486 U CN201320100486 U CN 201320100486U CN 203124412 U CN203124412 U CN 203124412U
- Authority
- CN
- China
- Prior art keywords
- polluted soil
- soil
- organic pollution
- unit
- seal closure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model provides a device for removing organic pollutants in contaminated soil. The device comprises a fresh air heating unit, a fresh air humidifying unit, a mixed reaction unit and a tail-end tail gas purification unit, wherein the fresh air heating unit comprises an air feeder and a pipeline heater, and the fresh air humidifying unit comprises a steam generator; the mixed reaction unit comprises a rotary joint, a reaction kettle and a driving motor, the reaction kettle comprises a seal housing, a horizontal cylindrical rotary drum and a gas uniform distribution pipe, a screw panel is adhered to a surface in the horizontal cylindrical rotary drum, and the seal housing is provided with a feeding port, a discharging port and an exhaust gas outlet; the rotary joint passes through the seal housing and is connected with a high-temperature wet wind pipeline and the gas uniform distribution pipe; the driving shaft of the driving motor passes through the other end of the seal housing and is used for driving the cylindrical rotary drum to rotate, and air holes are formed in the cylindrical rotary drum; and the tail-end tail gas purification unit comprises a waste gas purification unit and an exhaust fan. The device is simple in structure, has a high removal effect and is suitable for remediation and treatment of oil contaminated by organisms.
Description
Technical field
The utility model relates to a kind of purifier of removing organic pollution from polluted soil, relates to a kind of soil device of removing volatile organic contaminant in the polluted soil especially, belongs to improvement and the reparation field of polluted soil.
Background technology
China has accumulated comparatively serious organic soil and has polluted in long-term course of industrialization.For example, in recent years, in Development of China's Urbanization fast, moving back of the closure, suspension, merger and conversion of a large amount of factory and enterprises and city two advances three, numerous resettlement enterprise has stayed a large amount of carryover contaminations place, and for example because agricultural chemicals a large amount of long-term used and be residual, causes the large tracts of land agricultural land soil to be subjected to pollution by pesticides; Oil field prospecting, oil exploitation, oil storage and transportation and gas station's leakage etc. for another example, and caused the soil petroleum hydrocarbon to pollute ... serious soil pollution has all constituted tangible threat to underground water, agricultural product quality, ecological environment and health.And China is just at the early-stage aspect soil remediation and reparation, and practical soil pollution recovery technique demand is very urgent.
Up to now, the recovery technique to organic material contaminated soil mainly contains advanced oxidation processes, high temperature pyrolytic cracking (HTP), chemical leaching method, phytoremediation method, microorganism repairing method, gas phase extraction process etc.
Advanced oxidation processes is to add oxidant in polluted soil, thereby organic pollution that will be wherein is oxidized to harmless micromolecular compound and inorganic salts, but easily the physicochemical property of soil is caused severe bad influence.
High temperature pyrolytic cracking (HTP) is heat treatment technics, is to heat soil by feeding vapours in soil or with methods such as radio frequency, electrical heating, thereby makes the pollutant in the soil resolve into little molecule or innocuous substance.Shortcoming is to consume energy greatlyyer, and the physicochemical property of soil is also had adverse effect
The chemical leaching method refers to by means of the solvent that can promote the dissolving of pollutant in the soil environment or migration pollutant be leached out from soil particle, and isolated sewage is handled subsequently, thereby finishes the pollutant removal of soil.This method operation is comparatively simple, but only effective to specific soil and pollutant, the scope of application is little, and elution efficiency is low.
The phytoremediation method refers to utilize physiological activity absorption or the pollutant in the degraded soil of plant or make these pollutants become harmless method, mainly comprises plant extract, plant stability, phytovolatilization, plant degradation, rhizosphere filtering etc.This method cost is lower, simple to operate, but efficient is low excessively, and is consuming time too very long.
The microorganism repairing method mainly is by utilizing nutrition and other chemicals to come activating microorganisms, make them keep the kilter of metabolic activity, can decomposing and destroy pollutant fast.But this method needs constantly to add biologic product in soil, and the mass transfer effect of microorganism in soil is bad, and this method cost is higher, and repairing efficiency is long.
Gaseous phase of soil extraction process (Soil vapour extraction, SVE) be widely used a kind of soil remediation technology in recent decades, this technology mainly is to produce driving force by introduce clean air in contaminated soil, thereby utilize the concentration gradient between solid phase of soil, the liquid and gas, the pollutant in the soil is converted into the steam form and is removed.SVE is particularly useful for the reparation of high volatile volatile organic polluted soil, as contaminated soils such as gasoline, benzene and tetrachloro-ethylenes, and has certain limitation for the organic pollutant removal of middle volatility and low volatility: removal efficient is lower, the cycle is long etc.
In sum, the effective technology that present China does not still repair the organic polluted soil engineering, and the demand that China administers fast and repairs contaminated site is especially high, exploitation efficient quick, flexible improvement and prosthetic appliance and method have stronger demand, also are research emphasis and the focuses in present soil remediation field.
The utility model content
Consider the shortcomings and deficiencies of above-mentioned technology, the present application people is from point of practical use, through after a large amount of creationary further investigations, it is rapid to develop a kind of startup, remove the device of organic pollution in the polluted soil efficiently, novelty design by multiple structural detail and/or parts, Collaboration and can the organic pollution in the polluted soil being evaporated effective and rapidly, this installs wide adaptability, for the high volatile volatile organic matter, middle volatile organic matter and low volatile organic all have very strong removal ability, contaminant removal efficiency, integrated performance indexs such as processing cycle all are better than all existing known devices.
For achieving the above object, the device of organic pollution comprises the new wind heating unit that links to each other in turn with pipeline, new wind humidifying unit, hybrid reaction unit and terminal tail gas clean-up unit in the removal polluted soil of the present utility model.
From the new wind of high temperature of described new wind heating unit with compile the back from the steam of described new wind humidifying unit and form the high temperature wet wind, and enter into described hybrid reaction unit and mix with polluted soil, the waste gas of generation enters in the described terminal tail gas clean-up unit and discharges through purifying.
Described hybrid reaction unit comprises swivel joint, reactor and drive motors, wherein said reactor comprises seal closure, is positioned at the horizontal rotatingcylindrical drum of described seal closure inside and stretches into the equal stringing of described rotatingcylindrical drum gas inside, the inner surface of described rotatingcylindrical drum is attached with flight, and described seal closure is provided with charging aperture, discharging opening and is connected the waste gas outlet of described terminal tail gas clean-up unit; Described swivel joint passes described seal closure and is communicated with the high temperature wet wind and described even gas distribution pipe; The driving shaft of described drive motors passes the end in addition of described seal closure and drives described rotatingcylindrical drum rotation.
In the device of organic pollution, described new wind heating unit comprises pressure fan and pipeline heater in above-mentioned removal polluted soil, and wherein: pressure fan is delivered to air and is heated into hot-air in the pipeline heater by pipeline.
In above-mentioned removal polluted soil in the device of organic pollution, described new wind humidifying unit comprises steam generator, wherein: enter described hybrid reaction unit after compiling in pipeline from the steam of described steam generator with from the hot-air of described pipeline heater.
In the device of organic pollution, described terminal tail gas clean-up unit comprises waste gas purification apparatus and air exhauster in above-mentioned removal polluted soil, and wherein: described waste gas purification apparatus two ends connect described air exhauster and described waste gas outlet respectively.
In above-mentioned removal polluted soil in the device of organic pollution, described pressure fan is special the restriction not, as long as it can form new wind and deliver to it pipeline and be heated subsequently with as the steam carrier from extraneous (as atmosphere) suction fresh air, for example can use any air blast known in the industrial circle, the big I of its air quantity is carried out suitable adjusting as required.。
In the device of organic pollution, described pipeline heater can be straight shape, helical annular or a plurality of back and forth " Z " shape, is preferably helical annular in above-mentioned removal polluted soil.Can select its total length and internal diameter suitably according to the needs in the practical application, for example its length can be 10-200cm, this scope has comprised any subinterval that is positioned at wherein, exemplarily as be 30-180cm, 50-160cm, 70-140cm or 90-120cm, and comprised any concrete numerical value wherein, exemplarily as be 10cm, 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, 130cm, 140cm, 150cm, 160cm, 170cm, 180cm, 190cm or 200cm; For example its internal diameter can be 1-10cm, and this scope has comprised any concrete numerical value that is positioned at wherein, exemplarily as be 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm or 10cm.The material of described pipeline heater is special the restriction not, can use any conventional known materials in this area, as stainless steel, black carbon steel etc.Different according to the chemistry of the organic pollution in the soil and physical property, can select and suitable pipeline heater temperature, farthest remove to realize organic pollution, therefore, randomly, described pipeline heater also can link to each other with device for detecting temperature, thereby but the real-time implementation monitoring temperature is realized temperature control and adjusting better.Give an example as a kind of, described pipeline heater is made by spiral helicine high-resistance material, when heating, open heater switch, this pipeline heater is heated, heat as feeding electric current, the air that consequent a large amount of heats are sent into pressure fan heats, for example can be with air heat to 100-1000 ℃, as 100 ℃, 200 ℃, 300 ℃, 400 ℃, 500 ℃, 600 ℃, 700 ℃, 800 ℃, 900 ℃ or 1000 ℃.Preferably, can realize temperature auto control by temperature monitoring and temperature retentive control device, for example set a temperature value, when heating-up temperature is higher than this setting value, then stop heating, and when temperature is lower than this setting value, then restart heating.By temperature control equipment, can with temperature control on a certain setting value, realize the removal of organic pollution maximal efficiency.
In the device of organic pollution, described steam generator is special the restriction not in above-mentioned removal polluted soil, as long as it can change the water that adds into steam, can be the conventional any known steam generator that uses in the industrial circle.When the described steam generator of generation goes out enough steam, by pressure with moisture vapor transport in pipeline, mix mutually with the hot-air (hereinafter referred to as " the new wind of high temperature ") that adds from described pipeline heater, thus the high temperature humid air (hereinafter referred to as " high temperature wet wind ") that obtains having certain humidity.Different according to the chemistry of the organic pollution in the soil and physical property, can select suitable humidity, farthest remove to realize organic pollution, therefore, randomly, described steam generator also can link to each other with the humidity detection device, thereby but the real-time implementation humidity control realizes humidity control and adjusting better.
In above-mentioned removal polluted soil in the device of organic pollution, described swivel joint is special the restriction not, and it can be the normally used any known swivel joint that is used for delivering vapor in the industrial circle.Described swivel joint passes described seal closure, and connect high temperature wet wind pipeline and described even gas distribution pipe, thus the high temperature wet wind is passed in the described even gas distribution pipe, its material can be stainless steel, anticorrosion carbon steel or carbon steel, be preferably stainless steel or anticorrosion carbon steel, most preferably be stainless steel.Swivel joint can guarantee can be continuously to feed the high temperature wet wind in reactor in the rotating while of described rotatingcylindrical drum, guaranteeing keeping suitable temperature, humidity and air quantity in the reactor, thereby reaches good organic pollutant removal effect and efficient.In addition, described swivel joint can guarantee to pass the airtight connection at seal closure place, thereby prevents the leakage of high temperature wet wind and organic pollution.
In above-mentioned removal polluted soil in the device of organic pollution, the not special restriction of the material of described rotatingcylindrical drum, as long as it has certain mechanical strength, wear-resistant, high temperature resistant, for example can be carbon steel, stainless steel, black carbon steel etc., be preferably stainless steel.Described rotatingcylindrical drum is horizontal rotatingcylindrical drum, inner surface is provided with flight (being helical blade), for the soil that makes adding enters in the cylinder, the complete opening of described rotatingcylindrical drum one end, enter for soil, the other end has the circular hole that only passes for swivel joint, and preferably realizes airtight the connection with swivel joint.Described rotatingcylindrical drum is fixedlyed connected with reinforcing bar with the driving shaft of the described drive motors that extend into this cylinder inside, for example by being weldingly connected, a described end that for example is weldingly connected reinforcing bar is welded on the inwall of described rotatingcylindrical drum or is welded on the opening part of described rotatingcylindrical drum, exemplarily for example by being that benchmark is three reinforcing bars of 120 ° and is weldingly connected with the driving shaft, rotate thereby when drive motors turns round, can drive described rotatingcylindrical drum.In addition, for stability of rotation, the center line of described driving shaft and described rotatingcylindrical drum coincides.When rotatingcylindrical drum rotates to certain direction, described flight can be finished feed operation with in the polluted soil precession rotatingcylindrical drum that adds, otherwise when the rotatingcylindrical drum counter-rotation, then described flight can be released rotatingcylindrical drum with soil, thereby finishes the discharging operation.
In above-mentioned removal polluted soil in the device of organic pollution, described drive motors can be any conventional known drive motor in the industrial circle, it can connect switch, thereby when opening switch, can change the polarity of electrode and realize that positive direction is rotated or counter rotation is moving, but thereby driving both clockwise direction rotations of described cylindrical rolling, also can be rotated counterclockwise.
In the device of organic pollution, described seal closure wraps up described rotatingcylindrical drum fully in above-mentioned removal polluted soil, and is provided with charging aperture and the discharging opening that is respectively applied to charging and discharging, and the waste gas outlet that is used for combustion gas.For the convenient of charging and discharging considers that charging aperture is located at the top of described seal closure, and discharging opening is located at the bottom of described seal closure, and preferred described charging aperture and discharging opening lay respectively at the upper and lower of the same end of seal closure.Described waste gas outlet can be arranged on any position of described seal closure, for example top, bottom or sidepiece, but because gas is easier to upwards flow, therefore be preferably placed at described seal closure top, most preferably described waste gas outlet is positioned at the described seal closure top of end (with respect to an end that is provided with charging aperture and discharging opening) in addition.For charging can enter into described rotatingcylindrical drum efficiently, easily, preferred feedstock mouth and discharging opening are separately positioned on the upper and lower of the seal closure end of described rotatingcylindrical drum open side, and described waste gas outlet is positioned at the described seal closure top of end in addition.
In above-mentioned removal polluted soil in the device of organic pollution, the sealing of described even gas distribution tube terminal place, have pore at body, described pore is preferred evenly to distribute, and suitable selection can be carried out according to the practical operation needs in its aperture, for example can be 0.5-10mm, this scope has comprised any concrete numerical value that is positioned at wherein, exemplarily as be 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm.The position of described even gas distribution pipe in described rotatingcylindrical drum be special the restriction not, can be positioned at any position of described rotatingcylindrical drum except central axis, for example can be positioned at the top of the central axis of described rotatingcylindrical drum, the below, it comprised be positioned at described central axis directly over, under, side top or side-lower, but be preferably placed at described central axis under, namely be positioned on the same plumb cut with described central axis, for example be as the criterion with the distance center axis, can be positioned at 0.1r-0.9r place under the described rotatingcylindrical drum central axis, wherein r is the radius of described rotatingcylindrical drum, for example can be positioned at 0.1r, 0.2r, 0.3r, 0.4r, 0.5r, 0.6r, 0.7r or the 0.8r place, most preferably be positioned at the 0.5r place.
In above-mentioned removal polluted soil in the device of organic pollution, described waste gas purification apparatus refers to remove the volatility of carrying secretly in the waste gas from described waste gas outlet, any waste gas purification apparatus of half volatile organic contaminant, they can be by various ways such as multistage filtering, absorption etc. and the organic pollution in the waste gas and the tiny soil particle that may carry secretly are held back and are adsorbed, and give off the pollution-free gas of allow compliance with emission standards.For example can exemplarily exemplify, the purification process of described waste gas purification apparatus and order are at first holding back inorganic suspended particles by multistage filtering, hold back littler volatility, half volatile organic contaminant particle then, remove the organic pollution of gaseous state at last by sorbing material absorption, thereby having prevented effectively that volatility, half volatile organic contaminant from proceeding to causes secondary pollution, the gas allow compliance with emission standards that gives off in the atmosphere.In concrete operations, can be according to the concrete organism kinds in the polluted soil, the factors such as the order of severity of soil pollution, and comprise in multistage filtering material, sorbing material, the catalysis material one or more, for example material therefor can be selected active carbon, haydite, various catalyst granules etc., the pollution level that depends on soil can be selected the particle diameter of these materials suitably, for example can be the 10-50 order, as 10 orders, 20 orders, 30 orders, 40 orders or 50 orders.
In above-mentioned removal polluted soil in the device of organic pollution, described air exhauster by suction will form in the described reactor Abgasabsaugung in described waste gas purification apparatus, waste gas is through after the purified treatment of described waste gas purification apparatus, allow compliance with emission standards, and be discharged in the external world by described air exhauster and go.The kind of described air exhauster is special the restriction not, can use the known air exhauster of any routine in the industrial circle, is preferably explosion-proof air exhauster, and the big I of its air quantity is carried out suitable adjusting according to actual needs.
As mentioned above, the utility model provides device a kind of novelty, that can efficiently remove volatile organic contaminant in the soil, described device have start convenient rapidly, remove excellent characteristics such as efficient height, comprehensive energy consumption are lower, convenient mobile processing, can solve on the low side, problems and defectives such as energy consumption is higher, gas sampling complexity of volatile organic contaminant removal efficient in the existing soil remediation process well, be highly suitable for handling fast and in time of paroxysmal organic material contaminated soil, also be suitable for very much the repair process of long regional soil of pollution time.
Description of drawings
In order to be illustrated more clearly in described device of the present utility model, the accompanying drawing of required use is done simple the introduction in will describing embodiment below, but it is apparent, the accompanying drawing that describes below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain modified accompanying drawing similar with it according to these accompanying drawings.
Fig. 1 example illustration the formation schematic diagram of the device of organic pollution in the removal polluted soil described in the utility model.
Fig. 2 example illustration the formation schematic diagram of hybrid reaction unit of device described in the utility model.
Fig. 3 example illustration polluted soil and high temperature wet wind carry out the schematic diagram of hybrid reaction.
Fig. 4 example illustration the charging schematic diagram of polluted soil.
Fig. 5 example illustration the discharging schematic diagram of soil after treatment.
Wherein, the corresponding relation of the elements/components of each numeral number and/or code name and device described in the utility model is as follows:
A. the new new wind humidifying unit of wind heating unit b. c. hybrid reaction unit
D. terminal tail gas clean-up unit e. reactor 10. pressure fans
11. pipeline heater 20. steam generators 30. swivel joints
31. even gas distribution pipe 32. rotatingcylindrical drums 33. flights
34. seal closure 35. charging apertures 36. discharging openings
37. drive motors 38. waste gas outlets 39. pores
40. waste gas purification apparatus 41. air exhausters
The specific embodiment
With reference to the accompanying drawings following; device to organic pollution in the removal polluted soil of the present utility model describes in detail further and/or sets forth; but should be appreciated that; the exemplary description that this just makes device of the present utility model and method of operating thereof; it is intended that to explain/elaboration described device of the present utility model and embodiment thereof; but not be used for limiting and/or restriction the utility model, more non-protection domain of the present utility model is confined to this.
With reference to figure 1, the device of organic pollution comprises the new wind heating unit a that links to each other in turn with pipeline, new wind humidifying unit b, hybrid reaction unit c and terminal tail gas clean-up unit d in the removal polluted soil of the present utility model.
Wherein, from the new wind of high temperature of described new wind heating unit a with compile the back from the steam of described new wind humidifying unit b and form the high temperature wet wind, and enter into described hybrid reaction unit c and mix with polluted soil, the waste gas of generation enters among the described terminal tail gas clean-up unit d and discharges through purifying.
Described new wind heating unit a comprises pressure fan 10 and pipeline heater 11, and described pressure fan 10 is delivered to air in the pipeline heater 11 by pipeline and is heated into hot-air.
Described new wind humidifying unit b comprises steam generator 20, enters described hybrid reaction unit c after compiling in pipeline from the steam of described steam generator 20 with from the hot-air of described pipeline heater 11.
Described hybrid reaction unit c comprises swivel joint 30, reactor e and drive motors 37, wherein said reactor e comprises seal closure 34, is positioned at the horizontal rotatingcylindrical drum 32 of described seal closure 34 inside and stretches into the equal stringing 31 of described rotatingcylindrical drum 32 gas inside, described rotatingcylindrical drum 32 inner surfaces are attached with flight 33, and described seal closure 34 is provided with charging aperture 35, discharging opening 36 and is connected the waste gas outlet 38 of described terminal tail gas clean-up unit; Described swivel joint 30 passes described seal closure 34 and is communicated with the high temperature wet wind and described even gas distribution pipe 31; The driving shaft of described drive motors 37 passes the end in addition of described seal closure 34 and drives described rotatingcylindrical drum 32 rotations.
Described terminal tail gas clean-up unit d comprises waste gas purification apparatus 40 and air exhauster 41, and described waste gas purification apparatus 41 two ends connect described air exhauster 41 and described waste gas outlet 38 (being shown among Fig. 2) respectively.
The operation principle of the described device of the present utility model of Fig. 1 is as follows: utilize pressure fan 10 to suck natural air from the external world, being heated to uniform temperature in pipeline heater 11 becomes the new wind of high temperature; Water is passed in the steam generator 20 and becomes steam, this steam and the new wind of described high temperature compile in pipeline and are mixed into the high temperature wet wind with uniform temperature and humidity; This high temperature wet wind enters into the even gas distribution pipe 31 that is arranged in rotatingcylindrical drum 32 by swivel joint 30, and is discharged by the pore 39 on the even gas distribution pipe 31; After opening charging aperture 35 and adding the polluted soil for the treatment of capacity, close charging aperture 35 and discharging opening 36 on the seal closure 34, this moment, entire reaction still e was airtight good, start drive motors 37, drive rotatingcylindrical drum 32 rotations, flight on the rotatingcylindrical drum 32 will roll in the polluted soil precession cylinder and constantly at this moment, and abundant hybrid reaction takes place by the pore 39 on the even gas distribution pipe 31 (using " Δ " to represent these pores for making things convenient for avatars) the high temperature wet wind of discharging and the polluted soil that constantly rolls, because this high temperature wet wind temperature is high and have a certain humidity, thus can organic pollution adsorbed and fixing in the soil effectively desorb get off with " wash-out " and transfer in the air among the reactor e; Because it is airtight good to have certain suction force and reactor e after air exhauster 41 starts, thereby the waste gas of the organic pollution that is mixed with desorb and " suction is taken off " among the reactor e is pumped in the waste gas purification apparatus 40 by waste gas outlet 38 (being shown among Fig. 2), in the described waste gas purification apparatus 40 multistage filtering material and sorbing material are housed, at first hold back inorganic suspended particles (as trickle soil powder of suction etc.) by multistage filtering, hold back littler volatility then, the half volatile organic contaminant particle is removed the organic pollution of gaseous state at last by sorbing material absorption and/or catalyst material.Through the waste gas after so handling, the content of organic pollution sharply reduces, and reaches discharge standard fully, and realizes safe qualified discharge via air exhauster 41.
With reference to figure 2, the hybrid reaction unit c of the device of organic pollution comprises swivel joint 30, reactor e and drive motors 37 in the removal polluted soil described in the utility model.Wherein said reactor e comprises inner cylindrical cylinder 32, seal closure 34 and the even gas distribution pipe 31 that is arranged in described rotatingcylindrical drum 32.The surface, inside of described rotatingcylindrical drum 32 is attached with flight 33, the top of described seal closure 34 1 ends is provided with the charging aperture 35 for charging, the bottom is provided with the discharging opening 36 for discharging, is provided with the waste gas outlet 38 for combustion gas on the other end top of seal closure 34.The driving shaft of described drive motors 37 extend into the inside of rotatingcylindrical drum 32, and coincide with the central shaft of rotatingcylindrical drum 32, the right-end openings of rotatingcylindrical drum 32, at close this right-end openings place of the driving shaft of drive motors 34, by being three reinforcing bars that are 120 ° of benchmark with the driving shaft, and the inwall of driving shaft and rotatingcylindrical drum 3 is welded together (not shown these three reinforcing bars); The opening part that driving shaft passes seal closure 34 is equipped with sealing rubber ring, is preferably the high-temperature resistant rubber circle, to realize the good seal of entire reaction still e.Described even gas distribution pipe 31 tops have a plurality of pores 39 to discharge the high temperature moisture.
With reference to figure 3, when charging, then under "on" position, described device is opened to feed state, drive motors 37 drive rotatingcylindrical drums 32 rotations this moment, open charging aperture 35 and discharging opening 36 simultaneously, contaminated soil is joined in the reactor e by charging aperture 36, the soil of omitting in the fill process will and be collected pending from discharging opening 36 whereabouts, continuous feed stops charging when reaching the single batch processing ability of design, close charging aperture 10 and discharging opening 11.In fill process, because flight is constantly with soil precession rotatingcylindrical drum 32, and can not cause soil in a large amount of from discharging opening 36, discharging, can not be deposited near the charging aperture 35 yet and influence carrying out smoothly of charging.This soil charging both can hand feed, also can pass through the belt conveyor intermittent feeding, preferably by the belt conveyor charging, so can accelerate charging and processing progress, had significantly reduced manipulation strength, ensured the health of human body safety of processing procedure.
With reference to figure 4, after charging finished, described device entered reactiveness, opened pressure fan 10 and air exhauster 41, started pipeline heater 11 simultaneously, formed the new wind of high temperature in pipeline.Open steam generator 20, the steam that forms is mixed in the pipeline forms the high temperature wet wind with the new wind of high temperature, described high temperature wet wind enters into through swivel joint 30 and is arranged in the equal stringing 31 of rotatingcylindrical drum 32 gas inside.Because the driving of drive motors 37, rotatingcylindrical drum 32 constantly rotates, under the stirring of flight 33, polluted soil rolls in cylinder, fully stirred and mixed, and in rolling, in the time of stirring and mixing, the high temperature wet wind is discharged by the pore 39 on the even gas distribution pipe 31, carried out fully contacting mixing with polluted soil, thereby the solid-state and liquid abundant desorb of volatile organic contaminant and " wash-out " gets off in soil under high temperature and air humidity, become the gaseous state waste gas that contains volatile organic matter, and enter into follow-up waste gas purification apparatus 40 by waste gas outlet 38.
With reference to figure 5, through after the reaction of certain hour, when the organic pollution in the polluted soil is reached designing requirement and environmental protection requirement by effective removal, the reactiveness end, this moment, described device entered the discharging state.Close pressure fan 10, air exhauster 41, pipeline heater 11 and steam generator 20, open discharging opening 36 simultaneously, and the switch (not shown) that links to each other with drive motors 37 of unlatching, thereby described device is adjusted to the discharging state, rotatingcylindrical drum 32 contrary directions rotations this moment, under the effect of flight 33, handle back soil and be pushed out to discharging opening 36 places, and discharge reactor e, treat that all basically soil all is discharged from after, finish the discharging state, for volume is vacateed in the processing of next batch.
By the fill process of carrying out Fig. 3 in turn, the hybrid reaction process of Fig. 4 and the discharging process of Fig. 5, can finish an operating process.In carrying out above-mentioned three processes repeatedly, just can carry out continued operation repeatedly.
By using described device of the present utility model, can produce following good effect:
(1) effectively improves volatile organic matter removal effect and efficient in the soil: by utilizing the high temperature wet wind polluted soil is carried out abundant mixing and contacting reaction, being solid-state and liquid volatile organic matter desorption in the soil in air and taking away, make that the volatile organic matter in the soil is removed.Simultaneously, according to chemistry and the physical property of the organic pollution in the soil, can regulate parameters such as temperature, humidity and motor speed neatly and make that removal efficient is more efficient.
(2) significantly reduced the excessive risk of waste gas: because in course of reaction, realize that the reactor of hybrid reaction is in the state of totally-enclosed, be equipped with perfect waste gas purification apparatus simultaneously, make the volatile organic matter that in the hybrid reaction process of soil and high warm and humid new wind, dissociates not have directly excessive risk in environment, so significantly reduced the excessive secondary pollution risk that causes of waste gas.
(3) have through engineering approaches operability easily: each parts of package unit are integrated brief, can realize modularization production, and can be assembled into wheeled apparatus, can handle the on-the-spot overall package that realizes fast, have engineering application conditions flexibly, can be conveniently used in the actual engineering.Because it cooperates without any need for civil engineering, so can be used in each soil treatment scene flexibly, especially have and load fast and assemble ability, being highly suitable for paroxysmal organic matter and polluting the on-site soil processing, is a kind of portable organic polluted soil treatment facility field repair, emergent that is applicable to.
Device of the present utility model can effectively be applied to soil under the multiple situation and be subjected to repair process after volatile organic matter pollutes, both satisfied the demand of China's socio-economic development, avoided some deficiencies of existing soil remediation technology again, this device has good advance aspect soil treatment.
Although for example with the purpose of description, and introduced structure and processing procedure shown in above-mentioned embodiment of the present utility model and the accompanying drawing.But these are not to be detailed description, scope of the present utility model can not be confined to this.For a person skilled in the art, can make numerous modifications and variations to above-mentioned embodiment of the present utility model, and these all modifications and/or change all are included in as within the claim of the present utility model institute restricted portion, do not break away from the scope and spirit of the present utility model that claim as described limits.
Claims (10)
1. a device of removing organic pollution in the polluted soil is characterised in that: comprise the new wind heating unit that links to each other in turn with pipeline, new wind humidifying unit, hybrid reaction unit and terminal tail gas clean-up unit;
From the new wind of high temperature of described new wind heating unit with compile the back from the steam of described new wind humidifying unit and form the high temperature wet wind, and enter into described hybrid reaction unit and mix with polluted soil, the waste gas of generation enters in the described terminal tail gas clean-up unit and discharges through purifying;
Described hybrid reaction unit comprises swivel joint, reactor and drive motors, wherein said reactor comprises seal closure, is positioned at the horizontal rotatingcylindrical drum of described seal closure inside and stretches into the equal stringing of described rotatingcylindrical drum gas inside, the inner surface of described rotatingcylindrical drum is attached with flight, and described seal closure is provided with charging aperture, discharging opening and is connected the waste gas outlet of described terminal tail gas clean-up unit; Described swivel joint passes described seal closure and is communicated with the high temperature wet wind and described even gas distribution pipe; The driving shaft of described drive motors passes the end in addition of described seal closure and drives described rotatingcylindrical drum rotation.
2. the device of organic pollution in the removal polluted soil as claimed in claim 1, be characterised in that: described new wind heating unit comprises pressure fan and pipeline heater, wherein pressure fan is delivered to air and is heated into the new wind of high temperature in the pipeline heater by pipeline.
3. the device of organic pollution in the removal polluted soil as claimed in claim 1, be characterised in that: described new wind humidifying unit comprises steam generator.
4. the device of organic pollution in the removal polluted soil as claimed in claim 1 is characterised in that: the sealing of described even gas distribution tube terminal place, have pore on the body, and the diameter of pore is 0.5-10mm.
5. the device of organic pollution in the removal polluted soil as claimed in claim 4 is characterised in that: described even gas distribution pipe is positioned at 0.1r-0.9r place under the described rotatingcylindrical drum central axis, and wherein r is the radius of described rotatingcylindrical drum.
6. the device of organic pollution in the removal polluted soil as claimed in claim 1, be characterised in that: described terminal tail gas clean-up unit comprises waste gas purification apparatus and air exhauster.
7. the apparatus for coating of organic pollution in the removal polluted soil as claimed in claim 6 is characterised in that: described waste gas purification apparatus comprises a kind of in multistage filtering material, sorbing material, the catalysis material.
8. as the device of organic pollution in each described removal polluted soil of claim 1-7, be characterised in that: described rotatingcylindrical drum is fixedlyed connected with reinforcing bar with the driving shaft of the drive motors that extend into this cylinder inside.
9. as the device of organic pollution in each described removal polluted soil of claim 1-7, be characterised in that: described drive motors connects switch, can change the polarity of electrode when opening switch.
10. as the device of organic pollution in each described removal polluted soil of claim 1-7, be characterised in that: described charging aperture and discharging opening lay respectively at the upper and lower of the same end of seal closure, and described waste gas outlet is positioned at the described seal closure top of end in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100486 CN203124412U (en) | 2013-03-05 | 2013-03-05 | Device for removing organic pollutants in contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100486 CN203124412U (en) | 2013-03-05 | 2013-03-05 | Device for removing organic pollutants in contaminated soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124412U true CN203124412U (en) | 2013-08-14 |
Family
ID=48932434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100486 Expired - Fee Related CN203124412U (en) | 2013-03-05 | 2013-03-05 | Device for removing organic pollutants in contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203124412U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111462A (en) * | 2013-03-05 | 2013-05-22 | 上海市环境科学研究院 | Method for removing organic pollutants in polluted soil |
| CN104959373A (en) * | 2015-06-29 | 2015-10-07 | 环境保护部环境规划院 | Gas station soil and underground water heat strengthening multiphase extraction and remediation integrated system and method |
| CN105080954A (en) * | 2015-06-25 | 2015-11-25 | 北京格林特克环保能源科技有限公司 | Device for remedying and separating contaminated soil containing oil |
| CN107537850A (en) * | 2017-09-28 | 2018-01-05 | 中国地质科学院水文地质环境地质研究所 | A kind of device and its application method of high-efficient automatic cleaning soil |
| CN107617634A (en) * | 2017-09-28 | 2018-01-23 | 中国地质科学院水文地质环境地质研究所 | A kind of quick device and its application method for removing volatile contaminant in soil |
| CN109127702A (en) * | 2018-10-24 | 2019-01-04 | 青岛农业大学 | A kind of automation equipment for repairing polluted soil |
-
2013
- 2013-03-05 CN CN 201320100486 patent/CN203124412U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111462A (en) * | 2013-03-05 | 2013-05-22 | 上海市环境科学研究院 | Method for removing organic pollutants in polluted soil |
| CN105080954A (en) * | 2015-06-25 | 2015-11-25 | 北京格林特克环保能源科技有限公司 | Device for remedying and separating contaminated soil containing oil |
| CN105080954B (en) * | 2015-06-25 | 2017-12-15 | 北京格林特克环保能源科技有限公司 | A kind of oily sludge soil remediation and separator |
| CN104959373A (en) * | 2015-06-29 | 2015-10-07 | 环境保护部环境规划院 | Gas station soil and underground water heat strengthening multiphase extraction and remediation integrated system and method |
| CN107537850A (en) * | 2017-09-28 | 2018-01-05 | 中国地质科学院水文地质环境地质研究所 | A kind of device and its application method of high-efficient automatic cleaning soil |
| CN107617634A (en) * | 2017-09-28 | 2018-01-23 | 中国地质科学院水文地质环境地质研究所 | A kind of quick device and its application method for removing volatile contaminant in soil |
| CN109127702A (en) * | 2018-10-24 | 2019-01-04 | 青岛农业大学 | A kind of automation equipment for repairing polluted soil |
| CN109127702B (en) * | 2018-10-24 | 2021-05-28 | 山东蒙德尔生物科技有限公司 | A automation equipment for repairing pollute soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203124412U (en) | Device for removing organic pollutants in contaminated soil | |
| CN103111462A (en) | Method for removing organic pollutants in polluted soil | |
| Omorogie et al. | Regeneration strategies for spent solid matrices used in adsorption of organic pollutants from surface water: A critical review | |
| CN103506377B (en) | Multi-heat source and shaftless intervallic heating type thermal desorption device for organic pollutant contaminated soil repair | |
| CN103170499B (en) | Method for electrically removing heavy metals and organic pollutants from soil or sludge | |
| CN205096230U (en) | Soil organic matter - heavy metal pollution integration repair system | |
| CN103978027B (en) | A kind of helical delivery pushing-type discharge plasma soil sanitation processing means | |
| CN207138498U (en) | A kind of plasma soil restoring device | |
| CN106734152B (en) | Method and equipment for pre-drying polluted soil by using thermal desorption discharge waste heat | |
| CN203484405U (en) | Multi-heat source shaftless interval-heating thermal desorption device for repairing soil polluted by organic matter | |
| CN205165344U (en) | Little bioremediation pollutes device of soil | |
| CN103331298A (en) | Soil restoring method and system thereof | |
| CN107413834A (en) | A kind of multiple complexes of hot repair of organic polluted soil and application | |
| CN206232537U (en) | A kind of chemical reagent wastewater treatment equipment | |
| CN103170500A (en) | Device for electrically removing heavy metals and organic pollutants from soil or sludge | |
| CN206316138U (en) | A kind of device for being used to repair volatile organic matter and heavy-metal composite pollution soil | |
| CN106693938A (en) | VOC Fenton degradation activated carbon oxidation regeneration method and device | |
| CN103752295B (en) | A kind of electric converter for Powdered Activated Carbon regeneration | |
| CN214514546U (en) | A high-efficient reation kettle for raw materials purification treatment | |
| CN108002545A (en) | Contaminant degradation method | |
| CN208772132U (en) | A kind of processing unit automating organic polluted soil | |
| CN104003558B (en) | A kind of application of city life garbage filtrate treatment unit | |
| CN203095828U (en) | Sludge treatment device | |
| CN106732490A (en) | A kind of Powdered Activated Carbon modularized combination type regenerating furnace | |
| CN114682622B (en) | Multifunctional main repairing device and organic contaminated soil repairing device and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140305 |