CN207872723U - A kind of low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device - Google Patents
A kind of low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device Download PDFInfo
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- CN207872723U CN207872723U CN201721728195.7U CN201721728195U CN207872723U CN 207872723 U CN207872723 U CN 207872723U CN 201721728195 U CN201721728195 U CN 201721728195U CN 207872723 U CN207872723 U CN 207872723U
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- soil contaminated
- prosthetic device
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- 239000002689 soil Substances 0.000 title claims abstract description 78
- 238000003795 desorption Methods 0.000 title claims abstract description 68
- 239000010779 crude oil Substances 0.000 title claims abstract description 33
- 238000000197 pyrolysis Methods 0.000 claims abstract description 44
- 239000003921 oil Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000001179 sorption measurement Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000746 purification Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000005235 decoking Methods 0.000 claims abstract description 14
- 239000003818 cinder Substances 0.000 claims abstract description 12
- 239000002516 radical scavenger Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims description 19
- 239000010453 quartz Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000011490 mineral wool Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000001699 photocatalysis Effects 0.000 claims description 4
- 238000007146 photocatalysis Methods 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
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- 230000005611 electricity Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 239000011147 inorganic material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 239000002594 sorbent Substances 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 11
- 231100000719 pollutant Toxicity 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000000356 contaminant Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 66
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000005067 remediation Methods 0.000 description 6
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- 230000008439 repair process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
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- 230000009977 dual effect Effects 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
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- 239000003463 adsorbent Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
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- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003802 soil pollutant Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- -1 Hydroxyl radical free radical Chemical class 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000035558 fertility Effects 0.000 description 1
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- 239000002737 fuel gas Substances 0.000 description 1
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- 238000004391 petroleum recovery Methods 0.000 description 1
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- 239000010734 process oil Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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- 231100000611 venom Toxicity 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model is related to a kind of low temperature pyrogenations, and soil contaminated by crude oil prosthetic device is desorbed, belong to environmental technology field, including feed hopper, one-way sealing feed valve, device outer wall, pyrolysis desorption process chamber, heating electrical filament, temperature control equipment, temperature detecting element, scavenger system, fire grate, cinder chamber, oil water separator, water-cooling apparatus, accumulator, decoking device, exhaust gas treating device, gas purification adsorption chamber and exhaust outlet.The soil contaminated by crude oil pyrolysis desorption prosthetic device of the utility model, can fast and effeciently remove the volatile contaminant substance in contaminated soil, and the pollutant volatilized is adsorbed by exhaust gas processing device, avoid pollution air.The apparatus structure of the utility model is simple, easy to operate, safety, at low cost, moves, applied widely.
Description
Technical field
The utility model is related to a kind of contaminated soil remediation devices, and in particular to a kind of low temperature pyrogenation desorption soil contaminated by crude oil
Prosthetic device belongs to environmental technology field.
Background technology
Oil is a kind of complex mixture being made of each hydrocarbon, wherein being no lack of containing to people and zootoxin
The larger arene substance of property.
At present in various occasions, due to technology, management are many-sided, the petroleum-types such as diesel oil, gasoline and machine oil are caused
Pollutant is directly trickled down into ground, and different degrees of pollution is caused to soil.If things go on like this, the strong petroleum hydrocarbon of migration such as benzene, first
Benzene, dimethylbenzene etc. can reach underground reservoir and polluted underground water with Moisture Movement across soil aeration zone.In addition, difficult
The polycyclic aromatic hydrocarbons such as the petroleum hydrocarbon of degradation such as naphthalene, anthracene can be accumulated in the soil for a long time, and long-range injury is generated to the mankind by food chain.
Therefore oil haves the characteristics that environment is complicated, range is wide to the pollution of soil, administers hardly possible, the period is long, harm is big.
In recent years, it has been formed in global range and has repaired skill including peripheral doses, chemical remediation, biological prosthetic and its joint
Contaminated soil remediation system including art, and have accumulated different pollution type place soil comprehensive repair technology application experiences.Its
Middle peripheral doses are especially pyrolyzed recovery technique, with its permanent removal pollutant, non-secondary pollution, can create secondary benefit,
Different degrees for the treatment of effect is can reach, big six big advantage of different pollutants, process range is detached stage by stage and is widely used.
Being pyrolyzed the technical principle repaired is：Low temperature pyrogenation (being less than 700 DEG C) can generate the oil and solid-state carbon content of high heating value
High solid residue；(700~1200 DEG C) pyrolysis of high temperature, for the purpose of combustion value fuel gas in generation and coke.
Pyrolysis desorption technology refers under vacuum or when being passed through carrier gas, by direct or indirect heat exchange, by soil
In volatility/half volatile pollutant be heated to certain temperature, so that pollutant is volatilized or is detached from pollution medium,
Into the process of gas handling system.
Disclosed in 13 days Mays in 2015, a kind of entitled organic polluted soil multistage thermal desorption repair system, patent
It discloses a kind of organic polluted soil multistage thermal desorption application No. is the Chinese invention patent application of CN201510063379.5 and repaiies
Complex system belongs to technical field of soil remediation.The system is by first order thermal desorption device, second level thermal desorption device, tail gas
Manage device, dual firing chamber and drop type multifunction conveyer belt composition.The high-temperature tail gas generated using thermal desorption carries out preheating and preliminary to soil
Desorption, the contaminated soil processing method of two-stage or more grade makes full use of waste heat from tail gas, keeps system heat integration rate aobvious
It writes and improves；S-shaped drop type multifunction conveyer belt makes soil enter in the thermal desorption storehouse of higher temperature under the effect of gravity, avoids conveying and passes
The energy consumption of defeated device and transmission process, while soil transport path and transport time are increased, the residence time is extended, soil is made
The desorption of pollutant is more abundant.The method high energy consumption that the system uses, and extension coke is easy tod produce, and it be easy to cause secondary dirt
Dye.
Therefore it provides a kind of reparation efficiency improving oil-polluted soils, can return while removing soil pollutant
Receive contaminated soil in oil, while reduce oil-polluted soils recovery technique operating cost contaminated soil remediation device just
The technical barrier for being badly in need of solving as the technical field.
Utility model content
The purpose of this utility model is to provide a kind of low temperature pyrogenations, and soil contaminated by crude oil prosthetic device is desorbed, and improves petroleum wastewater
The reparation efficiency of soil, the oil in can recycling contaminated soil while removing soil pollutant are contaminated, while reducing oil
The operating cost of contaminated soil remediation technology, and use photocatalysis unit cleaning of off-gas.
The above-mentioned purpose of the utility model reaches by the following technical programs：
A kind of low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device, it is characterised in that：It is fed including feed hopper, one-way sealing
Valve, device outer wall, pyrolysis desorption process chamber, heating electrical filament, temperature control equipment, temperature detecting element, scavenger system, fire grate,
Cinder chamber, oil water separator, water-cooling apparatus, accumulator, decoking device, exhaust gas treating device, gas purification adsorption chamber and exhaust outlet；
The feed hopper is connect by one-way sealing feed valve with the top of pyrolysis desorption process chamber；Under the pyrolysis desorption process chamber
Portion is connected with fire grate；The lower part of pyrolysis desorption process chamber is equipped with heating electrical filament and scavenger system, and the scavenger system includes blowing
Gas stick and gas handling system, the Air blowing stick are connected with gas handling system；The gas handling system by aerogenesis apparatus, admission line and into
Gas port form, the aerogenesis apparatus is connected with the admission line, and is connected with scavenger system by air inlet, it is described into
Gas port is arranged in the lower section of pyrolysis desorption process chamber, and the temperature control equipment is arranged in the outside of described device outer wall, described
Temperature detecting element is arranged on the top of the pyrolysis desorption process chamber, the heating electrical filament and temperature detecting element respectively with institute
It states temperature control equipment to be connected, heats electrical filament and Air blowing stick arranged for interval, cinder chamber are located at the lower section of fire grate, the bottom of cinder chamber
Portion is equipped with slag-drip opening；The top right side of pyrolysis desorption process chamber is connected to by gas-guide tube with oil water separator, and oil water separator is logical
Gas-guide tube is crossed to be connected to water-cooling apparatus；Water inlet and discharge outlet and the external world is respectively set in the lower end and upper end of water-cooling apparatus
Water supply and sewerage pipeline is connected；The underface of water-cooling apparatus is connected by gas-guide tube with accumulator；The top of accumulator passes through
Gas-guide tube is connected with decoking device, and decoking device is connected by gas-guide tube with exhaust gas treating device, and the lower part of accumulator is equipped with discharge
Mouthful；Exhaust gas treating device includes the ultraviolet catalytic exhaust treatment system of lower part and connected gas purification adsorption chamber, purple
Outer photocatalysis exhaust treatment system is the quartz burner containing quartz socket tube, wherein the inner surface of quartz socket tube has TiO2Coating,
Gas purification adsorption chamber is located at the top offgas outlet of exhaust gas treating device；Gas purification adsorption chamber passes through gas-guide tube and exhaust outlet
It is connected；It is additionally provided with drawing mechanism below the pyrolysis desorption process chamber, the drawing mechanism is provided with discharge hole and rotation
The compound slide valve of formula.
Preferably, the outer wall of the pyrolysis desorption process chamber is enclosed with the heat-preservation cotton of one layer of 2~4cm thickness.
Preferably, the exhaust ports are equipped with exhaust air-introduced machine.
Preferably, the heating electrical filament and Air blowing stick are multiple, arranged for interval.
Preferably, the heating electrical filament and Air blowing stick are two, arranged for interval.
Preferably, described device outer wall is made of the middle layer of inside and outside wall bilayer and light filling heat-barrier material.
Preferably, the light heat-insulating material is thermal insulation inorganic material such as rock wool, mineral wool, expanded perlite, Huo Zheyou
Machine heat-barrier material such as polystyrene foam plastics, polyurethane foam plastics.
Preferably, activated carbon of sorbent and molecular sieve-4 A are housed in the gas purification adsorption chamber.
Preferably, the bottom of described device outer wall is equipped with several solid bearings, symmetrically arranges, preferably 6.
Advantageous effect：
Compared with prior art, in the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model, heating system
Graded temperature-control can efficiently volatilize the oil in soil and avoid the polluted gas such as a large amount of naphthalene, bioxin of output；It is rolled over using cycle
Flowing water cools down volatilization gas, and petroleum recovery rate is substantially improved；Vent gas treatment is dual using photocatalysis unit and Coupling Adsorption unit
Control, deep decomposition handle exhaust gas；It is easy to operate, it can automatically working.
The utility model is described further below by the drawings and specific embodiments, but is not meant to this reality
With the limitation of novel protected range.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device.
Main appended drawing reference explanation：
1 feed hopper 2 feeds flapper
3 device outer walls 4 pyrolysis desorption stove
5 heating 6 Air blowing sticks of electrical filament
7 fire grates (containing discharge port) 8 cinder chamber
9 oil water separator, 10 water-cooling apparatus
11 accumulator, 12 decoking device
13 ultraviolet lamps of the exhaust gas treating device 14 containing quartz socket tube
15 gas purification adsorption chambers 16 are vented air-introduced machine
17 temperature control equipment, 18 temperature detecting element
Specific implementation mode
Embodiment 1
As shown in Figure 1, being the structural schematic diagram of the utility model low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device；Its
In, 1 is feed hopper, and 2 be charging flapper, and 3 be device outer wall, and 4 be pyrolysis desorption stove, and 5 be heating electrical filament, and 6 be Air blowing stick, 7
It is cinder chamber for fire grate (containing discharge port), 8,9 be oil water separator, and 10 be water-cooling apparatus, and 11 be accumulator, and 12 be decoking
Device, 13 be exhaust gas treating device, and 14 be the ultraviolet lamp containing quartz socket tube, and 15 be gas purification adsorption chamber, and 16 be to be vented air-introduced machine, 17
It is temperature detecting element for temperature control equipment, 18,；Soil contaminated by crude oil prosthetic device packet is desorbed in the low temperature pyrogenation of the utility model
Include feed hopper 1, charging flapper 2, device outer wall 3, pyrolysis desorption stove 4, heating electrical filament 5, Air blowing stick 6, fire grate (containing discharge port)
7, cinder chamber 8, oil water separator 9, water-cooling apparatus 10, accumulator 11, decoking device 12, exhaust gas treating device 13, contain quartz socket tube
Ultraviolet lamp 14, gas purification adsorption chamber 15, exhaust air-introduced machine 16, temperature control equipment 17, temperature detecting element 18；Feed hopper
1 is connect by feeding flapper 2 with the top of thermal desorption stove 4, is discharged from feed inlet to avoid a large amount of tail gas, 3 (material of device outer wall
Matter is 304 stainless steels) there is inside and outside wall double-deck, central filler light heat-insulating material (can be commercially available inorganic thermal insulation
Material such as rock wool, mineral wool, expanded perlite etc., organic heat-barrier material such as polystyrene foam plastics, polyurethane foam plastics
Deng)；The outer wall of pyrolysis desorption stove 4 is enclosed with the heat-preservation cotton of one layer of 2-4cm thickness, and the lower end of pyrolysis desorption stove 4 and fire grate are (containing discharging
Mouthful) 7 be connected；Electrical filament 5 and two Air blowing sticks 6, the heating electrical filament 5 and temperature are heated there are two setting in the bottom of pyrolysis desorption stove 4
It spends control device 17 to be connected, the temperature detecting element 18 is connected with temperature control equipment 17, the temperature control equipment 17
For conventional temperature control equipment, it is internally provided with temperature indicator, PID regulator and transmitter, Air blowing stick 6 and gas handling system phase
Connection；The gas handling system is made of aerogenesis apparatus, admission line and air inlet, the aerogenesis apparatus and the admission line phase
Connection, and be connected with Air blowing stick 6 by air inlet, the air inlet is arranged in the lower section of pyrolysis desorption stove 4, can be fully sharp
Blow air is preheated with the waste heat of discharging and pyrolysis desorption stove 4, heats electrical filament 5 and 6 arranged for interval of Air blowing stick, fire grate
The lower section of (containing discharge port) 7 is equipped with cinder chamber 8；To the of short duration storage that cools of soil after processing, the bottom of cinder chamber 8 is set
There is slag-drip opening；The top right side of pyrolysis desorption stove 4 is connected to by gas-guide tube with oil water separator 9, and oil water separator 9 passes through air guide
Pipe is connected to water-cooling apparatus 10；The lower end and upper end of water-cooling apparatus 10 be respectively set water inlet and discharge outlet with it is extraneous to
Drainage pipeline networks is connected；The underface of water-cooling apparatus 10 is connected by gas-guide tube with accumulator 11；The top of accumulator 11
It is connected with decoking device 12 by gas-guide tube, decoking device 12 is connected by gas-guide tube with exhaust gas treating device 13, accumulator 11
Lower part is equipped with outlet；Exhaust gas treating device 13 is by (the ultraviolet catalytic tail gas of ultraviolet lamp 14 containing quartz socket tube positioned at lower part
Reason system) and connected gas purification adsorption chamber 15 composition, the ultraviolet lamp 14 containing quartz socket tube is located at exhaust gas treating device
The inner surface of 13 lower part, the quartz socket tube in the ultraviolet lamp 14 containing quartz socket tube has TiO2Coating, gas purification adsorption chamber 15
At the top offgas outlet of exhaust gas treating device 13；Gas purification adsorption chamber 15 in exhaust gas treating device 13 by gas-guide tube with
Exhaust air-introduced machine 16 is connected, and will be in exhaust emissions to air by being vented air-introduced machine 16；Gas purification adsorption chamber 15 is built-in
There is adsorbent：Activated carbon+molecular sieve-4 A.
The low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model is additionally provided with out in the lower section of pyrolysis desorption stove 4
Expect that device, the drawing mechanism are provided with discharge hole and rotary compound slide valve, to adjust aperture according to material discharging situation,
And avoid enter into a large amount of cold wind.
The bottom of the device outer wall of the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model is equipped with 15cm high
Solid bearing 6, symmetrically arranged in the bottom of device outer wall.
The heating electrical filament 5 is connected with temperature control equipment 17, and the setting of the temperature control equipment 17 is desorbed in pyrolysis
The outside of stove 4, the temperature detecting element 18 are arranged the top inside pyrolysis desorption stove 4, are set inside temperature control equipment 17
There are temperature indicator, PID regulator and transmitter；The heating electrical filament 5,18 structure of temperature control equipment 17 and temperature detecting element
It, can be by controlling control of the heating realization to the soil moisture in pyrolysis desorption stove 4 at temperature control system；The heating electricity
Silk 5 is desorbed in stove 4 in pyrolysis with Air blowing stick 6 and is uniformly alternately arranged, can be real without additionally overturning or other aid in treatment facilities
Now to soil uniform treatment in stove.
The utility model low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device operation principle be：Before start-up operation,
Temperature in pyrolysis desorption stove 4 is slowly risen to 60 DEG C by operation heating electrical filament 5 minutes；Then Air blowing stick 6 is opened, is started simultaneously at
Start water-cooling apparatus 10 and the ultraviolet lamp tube 14 containing quartz socket tube；Then charging flapper 2 is opened, by the Polluted Soil in funnel
Earth is sent into pyrolysis desorption stove 4, after soil adds, closes charging flapper 2 in time；It keeps Air blowing stick 6 to open, continues to heat up
Electrical filament 5 is heated, the temperature in pyrolysis desorption stove 4 rises to 75 DEG C, and maintains 10 minutes, remove the moisture in soil and easily wave on a small quantity
Send out light oil；Heating heating electrical filament 5 is then continued to, the temperature in pyrolysis desorption stove 4 rises to 280 DEG C, and maintains pyrolysis desorption stove 4
Temperature at 280 DEG C, 20min~120min；The tail gas that soil thermal desorption generates draws from the offgas duct on 4 top of pyrolysis desorption stove
Go out, first passes through oil water separator 9 and remove moisture, subsequently into the pipe network (pipeline) of water-cooling apparatus 10, pipeline high temperature tail at this time
Under water cooling effect, cooling liquid is flowed at petroleum liquid in oil storage tank 11 oil in gas；Remaining tail gas, which is introduced into, to be removed
Burnt device 12 carries out decoking processing, and treated that tail gas enters back into exhaust gas treating device 13 for decoking, and 13 lower part of exhaust gas treating device contains stone
The TiO of the inner wall of quartz socket tube in the ultraviolet lamp tube 14 (ultraviolet catalytic exhaust treatment system) of English casing2Coating is ultraviolet
Under the ultraviolet light of line fluorescent tube, gas pollutant in tail gas is removed, subsequently into gas purification adsorption chamber 15, gas purification is inhaled
Adsorbent in alcove 15 is activated carbon+molecular sieve-4 A, remaining toxic and harmful gas is removed, through exhaust outlet qualified discharge；If logical
Wind resistance is larger, can start exhaust air-introduced machine 16, increase emission flux of gas.
The low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model is suitable for oil-polluted soils, particularly suitable
The oil-polluted soils greasy filth of section is overhauled in processing railway locomotive, especially contains locomotive cleaning solution high concentration oil pollution soil
Earth.
Application Example 1
The low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model is suitable for containing locomotive cleaning solution high concentration
Oil pollution soil, it is respectively 20mg/kg, 0.10mg/ to contain petroleum hydrocarbon and volatile contaminant naphthalene total amount in soil before handling
kg.When 280 DEG C of desorption temperature of use, residence time 10min, moisture and light oil removal rate have reached 89%；It is solved when selecting
280 DEG C of temperature is inhaled, when the residence time is 60min, soil petrochina hydrocarbon and volatile contaminant naphthalene total amount are respectively 0.356mg/
Kg, 0.01mg/kg are below national standard of soil environment quality secondary standard (0.5mg/kg)；The oil recycled (is stored in oil storage
Room 11) further it can handle or shift third party's treatment for reuse by deep purifying.Treated contaminated soil is substantially to crops
And environment does not impact, and after repairing influence to physicochemical properties such as the soil organism, pH, cation exchange capacity (CEC), full nitrogen compared with
It is small, it is smaller to illustrate that the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model destroys soil natural fertility so that
Soil can restore to use (or being used for roadbed material) after processing.
In the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model, the water-cooling apparatus is rolled over using cycle
Flow tube allows the oil in tail gas to be fully cooled liquefaction, significantly promotes the secondary returning yield of petroleum resources.
In the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model, the exhaust gas treating device is using ultraviolet anti-
It should handle and adsorption dual vent gas treatment standard；Parietal layer smears TiO2Layer issues third contact of a total solar or lunar eclipse catalytic action in ultraviolet light and (generates
Hydroxyl radical free radical), the gas pollutant in oxidative degradation tail gas；Gas purification adsorption chamber 15 (activated carbon+molecular sieve-4 A) is residual
The guarantee unit of tail gas, it is ensured that the tail gas being discharged into air meets national environmental requirement.
Soil contaminated by crude oil prosthetic device is desorbed in the low temperature pyrogenation of the utility model, can fast and effeciently remove in contaminated soil
Volatile contaminant substance, and the pollutant volatilized is adsorbed by exhaust gas processing device, avoids pollution air.The utility model
Low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device is simple in structure, easy to operate, safety, at low cost, moves, the scope of application
Extensively.
In the low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device of the utility model, pyrolysis desorption can be by adjusting heating temperature
Oil is selectively detached volatilization by the modes such as degree and residence time from soil media, is not occurred to stone in repair process
Oil contaminants have the chemical reactions such as the oxidation of destruction, decomposition.Pyrolysis desorption includes mainly two basic processes：First, heating
Target contaminant is volatilized into gaseous state separation by pending substance；Second is that the tail gas containing pollutant is condensed, photodissociation and
The processing such as absorption is to being emitted into air after up to standard；Further, it is contemplated that oil recycling, improves soil contaminated by crude oil and repairs recycling, with drop
Low follow-up vent gas treatment load and cost.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
Above-described specific implementation example is only that the embodiment of the utility model is described, not to the utility model
Range is defined.On the basis of the utility model, the various modifications to the utility model and improvement to those skilled in the art,
Belong to the range of the requires of the utility model protection.
Claims (10)
1. soil contaminated by crude oil prosthetic device is desorbed in a kind of low temperature pyrogenation, it is characterised in that：It is fed including feed hopper, one-way sealing
Valve, device outer wall, pyrolysis desorption process chamber, heating electrical filament, temperature control equipment, temperature detecting element, scavenger system, fire grate,
Cinder chamber, oil water separator, water-cooling apparatus, accumulator, decoking device, exhaust gas treating device, gas purification adsorption chamber and exhaust outlet；
The feed hopper is connect by one-way sealing feed valve with the top of pyrolysis desorption process chamber；Under the pyrolysis desorption process chamber
Portion is connected with fire grate；The lower part of pyrolysis desorption process chamber is equipped with heating electrical filament and scavenger system, and the scavenger system includes blowing
Gas stick and gas handling system, the Air blowing stick are connected with gas handling system；The gas handling system by aerogenesis apparatus, admission line and into
Gas port form, the aerogenesis apparatus is connected with the admission line, and is connected with scavenger system by air inlet, it is described into
Gas port is arranged in the lower section of pyrolysis desorption process chamber, and the temperature control equipment is arranged in the outside of described device outer wall, described
Temperature detecting element is arranged on the top of the pyrolysis desorption process chamber, the heating electrical filament and temperature detecting element respectively with institute
It states temperature control equipment to be connected, heats electrical filament and Air blowing stick arranged for interval, cinder chamber are located at the lower section of fire grate, the bottom of cinder chamber
Portion is equipped with slag-drip opening；The top right side of pyrolysis desorption process chamber is connected to by gas-guide tube with oil water separator, and oil water separator is logical
Gas-guide tube is crossed to be connected to water-cooling apparatus；Water inlet and discharge outlet and the external world is respectively set in the lower end and upper end of water-cooling apparatus
Water supply and sewerage pipeline is connected；The underface of water-cooling apparatus is connected by gas-guide tube with accumulator；The top of accumulator passes through
Gas-guide tube is connected with decoking device, and decoking device is connected by gas-guide tube with exhaust gas treating device, and the lower part of accumulator is equipped with discharge
Mouthful；Exhaust gas treating device includes the ultraviolet catalytic exhaust treatment system of lower part and connected gas purification adsorption chamber, purple
Outer photocatalysis exhaust treatment system is the quartz burner containing quartz socket tube, wherein the inner surface of quartz socket tube has TiO2Coating,
Gas purification adsorption chamber is located at the top offgas outlet of exhaust gas treating device；Gas purification adsorption chamber passes through gas-guide tube and exhaust outlet
It is connected；It is additionally provided with drawing mechanism below the pyrolysis desorption process chamber, the drawing mechanism is provided with discharge hole and rotation
The compound slide valve of formula.
2. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：The pyrolysis is de-
The outer wall of attached process chamber is enclosed with the heat-preservation cotton of one layer of 2~4cm thickness.
3. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：The heating electricity
Silk and Air blowing stick are two, arranged for interval.
4. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：The exhaust outlet
Place is equipped with exhaust air-introduced machine.
5. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：Outside described device
Wall is made of inside and outside wall bilayer and central filler light heat-insulating material layer.
6. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 5, it is characterised in that：The lightweight every
Hot material is thermal insulation inorganic material such as rock wool, mineral wool, expanded perlite.
7. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 5, it is characterised in that：The lightweight every
Hot material is organic heat-barrier material such as polystyrene foam plastics, polyurethane foam plastics.
8. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：The gas is net
Change and activated carbon of sorbent and molecular sieve-4 A are housed in adsorption chamber.
9. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 1, it is characterised in that：Outside described device
The bottom of wall is equipped with several solid bearings, symmetrically arranges.
10. soil contaminated by crude oil prosthetic device is desorbed in low temperature pyrogenation according to claim 9, it is characterised in that：It is described solid
Bearing is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721728195.7U CN207872723U (en) | 2017-12-12 | 2017-12-12 | A kind of low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721728195.7U CN207872723U (en) | 2017-12-12 | 2017-12-12 | A kind of low temperature pyrogenation desorption soil contaminated by crude oil prosthetic device |
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|---|---|
| CN207872723U true CN207872723U (en) | 2018-09-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855355A (en) * | 2017-12-12 | 2018-03-30 | 中国铁道科学研究院 | A kind of low temperature pyrogenation is desorbed soil contaminated by crude oil prosthetic device |
| CN109772872A (en) * | 2019-01-18 | 2019-05-21 | 陆炯 | A kind of the soil comprehensive repair system and its restorative procedure of organic pollution |
| CN111215436A (en) * | 2020-01-20 | 2020-06-02 | 浙江固雅环境装备有限公司 | Organic contaminated soil remediation equipment |
-
2017
- 2017-12-12 CN CN201721728195.7U patent/CN207872723U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855355A (en) * | 2017-12-12 | 2018-03-30 | 中国铁道科学研究院 | A kind of low temperature pyrogenation is desorbed soil contaminated by crude oil prosthetic device |
| CN109772872A (en) * | 2019-01-18 | 2019-05-21 | 陆炯 | A kind of the soil comprehensive repair system and its restorative procedure of organic pollution |
| CN109772872B (en) * | 2019-01-18 | 2022-08-19 | 水之清环保科技(上海)有限公司 | Comprehensive soil remediation system polluted by organic matters and remediation method thereof |
| CN111215436A (en) * | 2020-01-20 | 2020-06-02 | 浙江固雅环境装备有限公司 | Organic contaminated soil remediation equipment |
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Address after: No. 2, Da Liu Shu Road, Haidian District, Beijing Co-patentee after: Institute of energy conservation and environmental protection, China Railway Research Institute Group Co., Ltd. Patentee after: China Railway Scientific Research Institute Group Co., Ltd. Co-patentee after: CHINA RAILWAY CORPORATION Address before: No. 2, Da Liu Shu Road, Haidian District, Beijing Co-patentee before: Energy Saving & Environmental Protection & Ocoupational Safety and Health Research of Environmental Protection China Academy of Railway Sciences Patentee before: China Academy of Railway Sciences Co-patentee before: CHINA RAILWAY CORPORATION |