CN108251148A - A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal - Google Patents
A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal Download PDFInfo
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- CN108251148A CN108251148A CN201810044805.4A CN201810044805A CN108251148A CN 108251148 A CN108251148 A CN 108251148A CN 201810044805 A CN201810044805 A CN 201810044805A CN 108251148 A CN108251148 A CN 108251148A
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- oil
- containing mud
- mud sand
- thermal desorption
- anoxybiotic
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
Abstract
The present invention relates to a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization methods of disposal; oil-containing mud sand is fed to anoxybiotic thermal analysis apparatus; pass through Thermal desorption process oil-containing mud sand; oil-containing mud sand heats under anoxic conditions; on the one hand make the organic principle wherein contained evaporation parsing; then condensed recycling, on the other hand the remaining body refuse after Thermal desorption by roasting, produce Environment-friendlyceramsite ceramsite or pottery sand finished product to re-use.The present invention is by dangerous waste, solid waste is innoxious, minimizing, comprehensive utilization of resources processing, belong to dangerous waste, solid waste oil-containing mud sand process field.
Description
Technical field
The present invention relates to dangerous waste, solid waste oil-containing mud sand process fields, and in particular to a kind of dangerous waste, the pyrolysis of solid waste oil-containing mud sand
Analysis comprehensive utilization method of disposal.
Background technology
Oil-containing mud sand, sand are a kind of dark thick shapes rich in mineral oil generated in oil field, Petrochemical Enterprises production process
Solid waste, it is derived from a wealth of sources, type is various, complicated component, harmfulness are big.At present, both at home and abroad to the place of oil-containing mud sand, sand
There are many reason scheme, but these schemes, all there is many drawbacks, many schemes are not put into practice still in the test theory stage
With.In short, a kind of putative, blanket scheme is really found in the processing to oil-containing mud sand not yet.Therefore, in energy
Today that source is more and more very briefer, environmental requirement is higher and higher, how to handle oil-containing mud sand, sand be still annoying each oil field,
The problem of refinery.
The present invention is minimizing, recycling, harmless treatment to be realized to the disposition of oil-containing mud sand, sand, and to current state
Inside and outside oil-containing mud sand, sand main process scheme carried out summarize, comparison.Last comprehensive study, in line with economical and efficient, green
The theory that colour circle is protected has devised Thermal desorption comprehensive utilization method of disposal technology.Thermal desorption is that a kind of oil-containing mud sand of remodeling is high
Warm treatment process.During using Thermal desorption process oil-containing mud sand, oil-containing mud sand is heated to certain temperature under anoxic conditions to be made
The organic principle evaporation parsing wherein contained, then condensed recycling；Remaining body refuse after Thermal desorption can reach related
Standard requirement.Thermal desorption technique is that the organic contamination components utilising distillation process principle in oil-containing mud sand is shifted from a kind of phase
To the physical separating process of another phase, although certain system higher temperatures will lead to selective oxidation and decomposition, the technology
Main purpose is not intended to carry out organic matter the oxygenolysis of higher degree.
Thermal desorption be not burn, the oxygenolysis of organic matter is not expected result, pyrolysis analysis system use temperature and
Residence time determines according to ingredient in oil-containing mud sand, does not generally aoxidize and destroys them, running effect is usually by containing
The comparison of oil sludge and sand content of organics before and after the processing is weighed, according to pyrolysis analysis system material heating running temperature, pyrolysis
Analysis system is divided into high temperature pyrolysis analysis and Low Temperature Thermal parses, ranging from 150 DEG C -315 DEG C of general low temperature pyrogenation eutectoid temperature (300 ℉ -
600 ℉), ranging from 315 DEG C -650 DEG C of high temperature pyrolysis eutectoid temperature (600 ℉ -1200 ℉).
Invention content
For the technical problems in the prior art, the purpose of the present invention is：A kind of dangerous waste, solid waste oil-containing mud sand are provided
Thermal desorption comprehensively utilizes method of disposal, by dangerous waste, solid waste oil-containing mud sand available resources recycling, using and reach dangerous waste, solid
Useless innoxious, minimizing, recycling.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal, oil-containing mud sand is fed to anoxybiotic and is pyrolyzed
Analysis apparatus, by Thermal desorption process oil-containing mud sand, oil-containing mud sand heats under anoxic conditions, on the one hand makes what is wherein contained
Organic principle evaporation parsing, then condensed recycling, on the other hand the remaining body refuse after Thermal desorption, which passes through, roasts, manufacture
Go out Environment-friendlyceramsite ceramsite or pottery sand finished product to re-use.
A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal, include the following steps：
Step 1：Oil-containing mud sand is sent into feeding warehouse storage after pretreatment workshop pre-processes, and the setting of feeding warehouse bottom is double
Axis has screw conveyor shaft outputting material.Specially：Feeding warehouse, according to dangerous waste, solid waste oil-containing mud sand, the oil to be come due to oil field
Containing the mechanical foreign matter such as part stone, glass bottle, spanner inside mud, should be sorted before into pyrolysis analysis system,
Therefore, a feeding warehouse charging hopper, 15 cubic metres of charging hopper total volume are first set, design employs rectangle cone bucket storage material,
The storage of this feeding warehouse is sent into from pretreatment workshop from pretreatment workshop by pretreated oil-containing mud sand, feeding warehouse bottom is set
Putting twin shaft has screw conveyor shaft engagement outputting material to tilt feeding device to sealing.Step 1 need to add in the medicament of de-oiling matter, medicine
The type of agent is the conventional selection of those skilled in the art.
Step 2：The material of step 1 output is sealed to be tilted feeding device seal feeding and is delivered to next step.Specifically
For：Sealing, which tilts feeding device and contains, stretches screw conveyor of the formula with compression ratio in one, the oil-containing that two level blocking valve falls
Silt particle is directly entered next step.Two level blocking valve uses compressed air-driven.Screw conveyor of the formula with compression ratio is inside stretched to adopt
It is driven with motor, installed power 7.5kW.
Step 3：The material that step 2 exports is delivered to next step through the screw conveyor with compression ratio.Specially：From two
The oil-containing mud sand that grade blocking valve comes out enters the screw conveyor with compression ratio, and object is realized by the screw conveyor with compression ratio
Material enters anoxybiotic thermal analysis apparatus.
Step 4：The material that step 3 exports carries out Thermal desorption process, organic principle and water through anoxybiotic thermal analysis apparatus
Part is precipitated with gas phase, and remaining body refuse is discharged with solid phase form.Specially：Into containing for anoxybiotic thermal analysis apparatus (KC-RJX)
While oil sludge and sand gradually moves forward in anoxybiotic Thermal desorption kiln body with the rotation of kiln body, kiln body is continuous by stove in vitro
Orderly heating realizes the desiccation of the first step, the light component organic matter pyrolysis of second, the heavy constituent organic matter pyrolysis of third step,
Organic matter and moisture after pervaporation and pyrolysis are precipitated with gas phase, efficiently separating for gas and solid are realized, from heat
Parsing discharge end is discharged respectively with gas phase and solid phase from anoxybiotic thermal analysis apparatus.This process employ sealing anoxybiotic discharging and
Moisture, organic matter and the separation of inorganic matter solid phase.Anoxybiotic thermal analysis apparatus (KC-RJX) critical piece is divided into kiln body and furnace body；Kiln
Body material itself uses high temperature resistant stainless steel SUS310S board makings, 12.5 meters of kiln body diameter phi 1600, kiln body length, anoxybiotic
15 meters of thermal analysis apparatus total length；Input and output material end pre-tightens dynamic sealing using heavy caliber aligning；Sealing element be divided into permanent components and easily
Damage part seal interface；The quiet part of discharge end dynamic sealing forms an assembly with discharge port and exhaust outlet；Kiln body support using support roller and
Rolling ring structure；Kiln body transmission adds sprocket drive system using bundle chain；Anoxybiotic thermal analysis apparatus host installed capacity 22kW；Furnace body：
Furnace body uses three-decker.Discharge system is configured above discharge end assembly, and discharge end assembly is equivalent to four exchange devices；The
One logical (left side is logical) constitutes dynamic sealing with main kiln body；Second logical (right side is logical) one heavy caliber manhole of setting, enters machine convenient for opening
Interior, manhole cover sets two peep holes, and daylighting is forced outside a machine, and one is used to observe operating status in machine；Third lead to (on
It is logical) for being vented, by the Thermal desorption gas in machine by negative pressure discharge machine outside, realize the timely separation of Thermal desorption gas, the 4th
Logical (lower logical) is for the Thermal desorption solid slag slag in exclusion machine；Slag-draining device equally carries out closed operation using two level blocking valve,
Blocking valve power is equally operated using cylinder power, and the setting discharging of blocking valve bottom has congee band coolconveyer.
Step 5：The organic principle and moisture content that step 4 is discharged by venturi scrubbing system, enter back into oil water separator into
Row water-oil separating is handled, and fluid is recovered, and oily wastewater is back to venturi scrubbing system front end and is recycled.Specially：
Water-oil separating step, the water come out from venturi scrubbing system belong to oily wastewater.An oil return oil tank is initially entered to be sunk
Drop water-oil separating, realize water-oil separating, after standing, oil product is swum in above, and oil product above is extracted out, the moisture of bottom into
Enter next processing section.Oil water separator total volume 20m3, make 6 meters high, most 8 hours of quiescent time had to enter into next
A workshop section.
Step 6：In step 5, venturi scrubbing system can generate light gas, and light vapor return enters anoxybiotic thermal analysis apparatus
The back segment of furnace body.Specially：Exhaust treatment system, the gas come out from anoxybiotic thermal analysis apparatus are handled, are made first
It is constantly fetched water in water tank cycle with a venturi pump, venturi pump installed power 5.5kW, exhaust fan 1.1kW, venturi
The negative pressuren zone that pump is formed is led to using pipeline with the kiln body gas outlet third of anoxybiotic thermal analysis apparatus to be formed pipeline and connects, and is pumped continuous
While ground recycles, negative pressuren zone forms stable negative pressuren zone, this negative pressuren zone effectively releases the gas phase in kiln body simultaneously
And mixed with moisture, it reduces temperature and forms oil water mixture, and produce light gas.This light gas is another
Furnace body third section is sent into outer Fans extraction.It is provided on this pipeline being connected in kiln body with venturi negative pressuren zone explosion-proof
Mouth and level-one extinguishing device.Data acquisition is carried out there is provided determination of oxygen content instrument and participate in control system simultaneously on this pipeline
System when oxygen content is more than 3%, has automatically controlled nitrogen and has been supplemented into progress inerting environment protection inside kiln body.
Step 7：In step 5, the oily wastewater of oil water separator discharge is finally all admitted to sewage treatment plant progress
After-treatment.Specially：The waste water of generation is directly entered sewage treatment plant and carries out after-treatment, reaches city two class water discharge
Standard is discharged.
Step 8：The body refuse that step 4 is discharged carries out biological respinse and obtains mixture, mixture granulation balling-up.Specially：Absolutely
The body refuse of oxygen thermal analysis apparatus discharging abandons mud, iron tailings example 1 in mass ratio with mud, building:4 are stirred, wherein, body refuse one
Part, mud, to abandon mud, iron tailings be four parts in total to building, then stacks biological respinse, and the reaction time, will be anti-generally not less than 7 days
Adequately mixture is stirred into granulating system between seasonable, balling-up of pelletizing.
Step 9：The particle that step 8 obtains is dried.Specially：Particle is delivered to dry kiln by conveyer,
Particle drying is carried out, drying temperature general control is between 300 to 400 DEG C.
Step 10：The particle roasting that step 9 is obtained is puffing, then obtains the haydite or pottery of different size by sorting
Sand finished product.Specially：Dry particle enters calcining kiln, and particle roasting is puffing, then obtains the pottery of different size by sorting
Grain or pottery sand finished product.
As a preferred embodiment, in step 4, anoxybiotic thermal analysis apparatus heats kiln body by furnace body, and heat passes through kiln body wall
Oil-containing mud sand is passed to, due to the rotation of kiln body, the oil-containing mud sand surface contacted with kiln body wall metal surface is continuously updated, and is promoted
Oil-containing mud sand is transmitted into uniform thermal power, oil-containing mud sand, which is heated to enough temperature, evaporates the pollutant component in oil-containing mud sand
Distillation.
As a preferred embodiment, oil-containing mud sand in the kiln body of anoxybiotic thermal analysis apparatus as the rotation of kiln body is gradually transported forward
While dynamic, kiln body constantly orderly heats the low temperature drying for realizing first segment by furnace body in vitro, and the light component of second segment has
Machine object is pyrolyzed (middle component organic matter Thermal desorption section), the heavy constituent organic matter pyrolysis of third section.
As a preferred embodiment, the ignition temperature of furnace body is 800~1400 DEG C, combustible substance is diesel oil, natural gas, oil recovery
With the mixture of one or more of biomass fuel with on-condensible gas.
As a preferred embodiment, the heat that burning generates is divided into two parts, what a part generated for heating steam generator
Superheated steam, it is therefore an objective to which surplus energy utility, another part, which enters with high-temperature gas in the outer heating zone of anoxybiotic thermal analysis apparatus, to be used
With indirectly heat.
As a preferred embodiment, superheat steam temperature is 200~300 DEG C, 300 DEG C of hot-gas temperature.
As a preferred embodiment, step 1 neutralization stage, heat source is provided by the anoxybiotic thermal analysis apparatus of step 4；Anoxybiotic is pyrolyzed
Heat-carrying agent is provided in analysis apparatus, the tail gas generated by anoxybiotic thermal analysis apparatus heats heat-carrying agent, by heat-carrying
Medium provides heat source to step 1.
As a preferred embodiment, sorting the stage in step 3, before material is by the screw conveyor with compression ratio, group need to be passed through
Two-way blocking valve is closed to enter：Heat-carrying agent heating is passed through in anoxybiotic thermal analysis apparatus, heating temperature is at 80 DEG C~120 DEG C.
As a preferred embodiment, a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, sludge containing is further included
Rag and packaging bag are sent directly into anoxybiotic thermal analysis apparatus, at 800~1400 DEG C by the rag of sand and the processing step of packaging bag
Under conditions of heating and gasifying 60min~90min, obtain fuel gas and solid residue, by solid residue input haydite processing step
Granulation roasting is carried out in rapid.
The principle of the present invention is：Each staging step of oil-containing mud sand is merged, one system of formation adds
Work processing method, based on anoxybiotic Thermal desorption technique, including the processing of fluid, the processing of oily wastewater, mud in oil-containing mud sand
The recycling of slag, the final recycling and sale for realizing fluid, is discharged, body refuse produces Environment-friendlyceramsite ceramsite or pottery after sewage disposal
Sand finished product is to re-use；In order to realize the fusion of each step, having carried out the improvement of certain steps and add between the steps
Specific device.
A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal, anoxybiotic Thermal desorption processing oil-containing mud sand are
A kind of innoxious process for treating, it is technologically advanced, resource and the energy in oil-containing mud sand can be effectively recycled, running temperature is relatively
Low, atmosphere pollution is easily controllable, and the sensitivity of the toxic and harmful gas such as mercury, arsenic, sour gas is asked in no bioxin and tail gas
Topic；The technical operation is fairly simple, using automation control.The present invention is widely used in drilling well greasy filth, tank bottom mud, oil refinery waste
The oil-containing solids such as the dregs of fat, organic chemical industry's waste material, the useless cloth of solvent cleaning, paint waste and resin waste, sludge from oil tank, oil-based drill cuttings
Pollutant, municipal sludge, industrial sludge, dedusting ash etc. contain the dangerous waste and solid waste for the organic admixture that can be evaporated removal,
By sort dispensing, be pulverized and mixed, the granulation of high temperature pyrolysis, waste material, the process such as reduction roasting, can be produced into for haydite industry
The technology of haydite building materials used so as to reach the minimizing of dangerous waste, solid waste, innoxious and recycling final purpose, has
Good social economy and ecological environment benefit.
Generally speaking, the invention has the advantages that：
1. by dangerous waste, solid waste is innoxious, minimizing, comprehensive utilization of resources processing.
2. it is technologically advanced, resource and the energy in oil-containing mud sand can be effectively recycled, because running temperature is relatively low.
3. atmosphere pollution is easily controllable, polluted without gaseous pollutants such as mercury, arsenic, sour gas in bioxin and tail gas
Tender subject.
4. producing Environment-friendlyceramsite ceramsite or pottery sand finished product can re-use in building trade.
Description of the drawings
Fig. 1 is fundamental diagram of the present invention.
Fig. 2 is haydite or pottery sand finished product production process charts.
Wherein, 1 is feeding warehouse, and 2 tilt feeding device for sealing, and 3 be the screw conveyor with compression ratio, and 4 be anoxybiotic heat
Resolver, 5 be cooling load displacing screw conveyer, and 6 be cyclone separator, and 7 be Starlike valve, and 8 be venturi scrubbing system, and 9 are
Oil water separator, 10 be sewage pump, and 11 be return water tank, and 12 be high speed jet pump, and 13 be cooling tower and circulating pump, and 14 be oil
Liquefied gas control cabinet, 15 be demister, and 16 be heat exchanger, and 17 freeze unit for air-cooled type, and 18 be air-introduced machine, and 19 be miniature air inducing
Machine, 20 be oil pump, and A comes from pretreatment workshop for oil-containing mud sand, and B comes from gas station for oil liquefied gas, and C enters oil tank for fluid
Sale, D enter sewage treatment plant for oily wastewater, and E enters haydite workshop for body refuse, and F is discharged into air for carbon dioxide and water,
G enters furnace body burning disposal for incoagulable gas, and H comes from cooling tower for cooling water, and I returns to cooling tower for cooling water.
Specific embodiment
It is next below that the present invention will be further described in detail.
Shown in Fig. 1, oil-containing mud sand is pre-processed by pretreatment workshop, along the flow direction of material, pretreatment workshop, charging
Storehouse, sealing tilt feeding device, band compression ratio screw conveyor, anoxybiotic thermal analysis apparatus and set gradually；Anoxybiotic thermal analysis apparatus
Third pass-out mouth, cyclone separator, venturi scrubbing system connect successively；The light gas vent of venturi scrubbing system removes
After foam device, heat exchanger, air-introduced machine connect successively, then the third section of anoxybiotic thermal analysis apparatus is accessed, wherein, heat exchanger and air-cooled type
Freezing unit is connected by two pipelines forms circulation loop；The oily wastewater outlet of venturi scrubbing system and oil water separator
Connect, the fluid outlet of oil water separator connects oil pump, so as to which fluid is recycled by oil tank；Oil water separator upper end outlet connects miniature
After wind turbine, then pass through the pipeline between pipeline access demister and heat exchanger；The outlet of sewer and sewage of oil water separator lower end
Pump is divided into two-way after connecting, and connects successively with return water tank, high speed jet pump all the way, then before accessing venturi scrubbing system
End, during being somebody's turn to do, sewage is condensed by cooling tower, and another way connects with sewage treatment plant finally discharges sewage；Anoxybiotic is pyrolyzed
The four-way outlet of analysis apparatus connects with cooling load displacing screw conveyer, discharge body refuse to haydite workshop, while cyclone separator
Lower end is equipped with Starlike valve, also discharges body refuse to haydite workshop；Oil liquefied gas is pyrolyzed by oil liquefied gas control cabinet and anoxybiotic
Analysis apparatus connects.
Fig. 2 is the technological process that body refuse produces Environment-friendlyceramsite ceramsite or pottery sand finished product.
A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal, it is specific as follows：
Step 1：
From pretreatment workshop by pretreated oil-containing mud sand this oil-containing mud sand feeding warehouse is sent into from pretreatment workshop
Storage.Oil-containing mud sand feeding warehouse bottom setting twin shaft has screw conveyor shaft to engage outputting material.Twin shaft has screw conveyor shaft
Discharge port realize slitless connection with next machine inlet, next machine is inclined seal feeding device.
Inclined seal feeding device successfully realizes the transfer of oil-containing mud sand, and anoxybiotic is transported to from oil-containing mud sand feeding warehouse
A small feed bin above the feed inlet of thermal analysis apparatus.
Step 2：
Small feed bin is the surge bunker of combined bidirectional blocking valve, and the oil-containing mud sand into small feed bin immediately enters combination pair
Gas storehouse is locked to the level-one of blocking valve, subsequently into secondary latch gas storehouse.Firsts and seconds blocking valve is realized alternate feed and is alternately locked
Gas, in order to which refusal oxygen (air) enters rear system while successfully charging.
Step 3：
From the oil-containing mud sand that combined bidirectional blocking valve comes out from the screw conveyor for being advanced into contracting ratio with pressure, by band compression ratio
Screw conveyor realize material and enter anoxybiotic thermal analysis apparatus (KC-RJX).
Step 4：
Into anoxybiotic thermal analysis apparatus oil-containing mud sand in anoxybiotic Thermal desorption kiln body with the rotation of kiln body gradually forward
While movement, by furnace body, constantly orderly heating realizes thermalization to kiln body in vitro, and first segment is (the general setting of low temperature drying section
Temperature is between 150-232 DEG C), second segment is that (general set temperature is at 250-350 DEG C for middle component organic matter anoxybiotic Thermal desorption section
Between), third section is heavy constituent anoxybiotic Thermal desorption section (general set temperature is between 350-650 DEG C), from the combustion chamber of furnace body
The gas of discharge is CO2And H2O gases.Organic matter and moisture after pervaporation and pyrolysis are precipitated with gas phase, realize gas
Efficiently separating for body and solid, is discharged from Thermal desorption discharge end with gas phase and solid phase from anoxybiotic thermal analysis apparatus respectively.This
Process employs the discharging of sealing anoxybiotic and moisture, organic matter and the separation of inorganic matter solid phase.Finally formed solid formation is because contain
Oil cut rate≤0.3% and become not dangerous waste.
The discharge end configuration two level blocking valve of anoxybiotic thermal analysis apparatus carries out closed operation, and blocking valve power equally uses gas
Cylinder power operates, blocking valve bottom setting cooling load displacing screw conveyer.Cooling down load displacing screw conveyer will be from discharging blocking valve
Waste residue out transports out, and temperature is reduced to about 80 DEG C or so is stored in inside storage silo and carry out temporary processing, this
A storage silo needs periodic cleaning to transport to haydite workshop.
It is released by venturi scrubbing system and have passed through the dedusting gas of cyclone separator and mixed with washings, formd
Contain oil water mixture and incoagulable gas and water vapor mixture, temperature is at 75 DEG C or so, the presence such as oil mixing with water liquid
It is coexisted in Venturi scrubbing water tank.
Step 5：
Oil water mixture in Venturi scrubbing water tank is mixed grease by the drainpipe and draining pump for being located at water tank bottom
Conjunction object is discharged to oil water separator and is detached.Oil water separator uses four lattice chamber structures, the water come out from Venturi scrubbing water tank
Belong to oily wastewater.Oil water separator level-one collection tank, 8 meters of oil water separator total length, overall width 2 are sent directly into using pump
Rice, 2 meters of total height, total volume 32m3, it is divided into four lattice and forms four bin levels.First lattice storehouse is collecting bin, from venturi
The oil water mixture that water tank comes is directly entered the storage of the first lattice and deposits, and the oil water mixture in a lattice storehouse is constantly in asthma stream shape
State.
After the certain liquid level of the first lattice storehouse band, fluid gradually flows into the second lattice storehouse, the second lattice in laminar condition
The fluid in storehouse is between asthma stream and laminar condition, gradually realizes layering, oil float is in upper strata, and water is in bottom, the second lattice storehouse
Belong to and be initially separated, have lamination, but be layered not thorough enough.It is laggard that the second gradual liquid level in lattice storehouse rises to certain height
Enter the separation of third lattice storehouse.Third lattice storehouse is in complete laminar condition.It has passed through third lattice storehouse to detach for a long time, oil leads to above
It crosses downflow weir and is directly entered the 4th lattice storehouse, water forms apparent separation in third lattice orlop portion.It should be noted that grease point
From the system that device is integral sealing, in order to prevent oil water separator positive pressure operation, oil water separator top setting one is micro-
Type air-introduced machine forms negative pressure operation, and the gas phase that oil water separator is come out is pumped into lonely device and carries out condensation process.
Step 6：
From the moisture that third lattice orlop portion releases into two-way, the first via reduces the temperature to about 55 using pump into heat exchanger
DEG C or so enter cyclic water tank into Venturi scrubbing pump water, venturi scrubbing system recycles.Heat exchanger cold medium is come
It exchanges heat from the cold water provided in cooling tower in factory.Cooling tower is on-site sharing means.Second road water is directly logical with pump
The Sewage Disposal that piping is pumped into on-site carries out water process, and Guangdong Province's sewage discharge two level discharge mark is reached after water process
Standard is discharged.
Step 7：
The solid material that cooling load displacing screw conveyer comes out inside the step 4 is exactly the residue after Thermal desorption, the inside
Containing a small amount of carbon dust, therefore, roaster workshop is transported to using sealing and is used as haydite calcining raw materials, realize recycling profit
With.
Step 8：
The body refuse that step 4 is discharged abandons mud, iron tailings example 1 in mass ratio with mud, building:4 are stirred, wherein, body refuse
For portion, and mud, building abandon mud, the summation of iron tailings is four parts, then stack biological respinse, the reaction time is generally not less than
7 days, the sufficient mixture of biological respinse is carried out second and is stirred and into granulating system, balling-up of pelletizing.
Step 9：
Particle is delivered to dry kiln by conveyer, carries out particle drying, drying temperature general control is 300 to 400
Between DEG C.
Step 10：
Dry particle enters calcining kiln, make particle roasting it is puffing, then by sorting obtain different size haydite or
Person's pottery sand finished product.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, it is characterised in that：By oil-containing mud sand feed to
Anoxybiotic thermal analysis apparatus, by Thermal desorption process oil-containing mud sand, oil-containing mud sand heats under anoxic conditions, on the one hand makes it
In contain organic principle evaporation parsing, then condensed recycling, on the other hand the remaining body refuse after Thermal desorption pass through
Roasting, produces Environment-friendlyceramsite ceramsite or pottery sand finished product to re-use.
2. a kind of dangerous waste described in accordance with the claim 1, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：Include the following steps
Step 1：Oil-containing mud sand is sent into feeding warehouse storage after pretreatment workshop pre-processes, and feeding warehouse bottom setting twin shaft has
Screw conveyor shaft outputting material；
Step 2：The material of step 1 output is sealed to be tilted feeding device seal feeding and is delivered to next step；
Step 3：The material that step 2 exports is delivered to next step through the screw conveyor with compression ratio；
Step 4：The material that step 3 exports carries out Thermal desorption process through anoxybiotic thermal analysis apparatus, organic principle and moisture content with
Gas phase is precipitated, and remaining body refuse is discharged with solid phase form；
Step 5：The organic principle and moisture content that step 4 is discharged enter back into oil water separator and carry out oil by venturi scrubbing system
Water separating treatment, fluid are recovered, and oily wastewater is back to venturi scrubbing system front end and is recycled；
Step 6：In step 5, venturi scrubbing system can generate light gas, and light vapor return enters the furnace body of anoxybiotic thermal analysis apparatus
Back segment；
Step 7：In step 5, oil water separator discharge oily wastewater be finally all admitted to sewage treatment plant carry out it is secondary
Processing；
Step 8：The body refuse that step 4 is discharged carries out biological respinse and obtains mixture, mixture granulation balling-up；
Step 9：The particle that step 8 obtains is dried；
Step 10：The particle roasting that step 9 is obtained is puffing, then by sorting obtain different size haydite or pottery sand into
Product.
3. a kind of dangerous waste described in accordance with the claim 2, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：In step 4, anoxybiotic thermal analysis apparatus heats kiln body by furnace body, and heat passes to oil-containing mud sand by kiln body wall, due to
The rotation of kiln body, the oil-containing mud sand surface contacted with kiln body wall metal surface are continuously updated, and uniform thermal power is promoted to be transmitted to and is contained
Oil sludge and sand, oil-containing mud sand, which is heated to enough temperature, makes the pollutant component in oil-containing mud sand evaporate distillation.
4. a kind of dangerous waste described in accordance with the claim 3, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：While oil-containing mud sand gradually moves forward in the kiln body of anoxybiotic thermal analysis apparatus with the rotation of kiln body, kiln body is external
Constantly orderly being heated by furnace body realizes the low temperature drying of first segment, the light component organic matter pyrolysis of second segment, third section
Heavy constituent organic matter pyrolysis.
5. a kind of dangerous waste described in accordance with the claim 3, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：The ignition temperature of furnace body is 800~1400 DEG C, and combustible substance is one in diesel oil, natural gas, oil recovery and biomass fuel
Kind or several and on-condensible gas mixture.
6. according to a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal described in claim 5, feature exists
In：The heat that burning generates is divided into two parts, and a part is used to heat the superheated steam of steam generator generation, it is therefore an objective to complementary energy
It utilizes, another part enters in the outer heating zone of anoxybiotic thermal analysis apparatus with high-temperature gas to indirectly heat.
7. according to a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal described in claim 6, feature exists
In：Superheat steam temperature is 200~300 DEG C, 300 DEG C of hot-gas temperature.
8. a kind of dangerous waste described in accordance with the claim 2, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：Step 1 neutralization stage provides heat source by the anoxybiotic thermal analysis apparatus of step 4；Heat-carrying is provided in anoxybiotic thermal analysis apparatus
Medium, the tail gas generated by anoxybiotic thermal analysis apparatus heat heat-carrying agent, and heat is provided to step 1 by heat-carrying agent
Source.
9. a kind of dangerous waste described in accordance with the claim 2, solid waste oil-containing mud sand Thermal desorption comprehensively utilize method of disposal, feature exists
In：The stage is sorted in step 3, before material is by the screw conveyor with compression ratio, need to be entered by combined bidirectional blocking valve：Absolutely
Heat-carrying agent heating is passed through in oxygen thermal analysis apparatus, heating temperature is at 80 DEG C~120 DEG C.
10. according to described in any one of claim 1 to 9 a kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization disposition
Method, it is characterised in that：The rag of oil-containing mud sand and the processing step of packaging bag are further included, rag and packaging bag are sent directly into
Anoxybiotic thermal analysis apparatus, heating and gasifying 60min~90min under conditions of 800~1400 DEG C, obtains fuel gas and solid is residual
Solid residue is put into haydite processing step and carries out granulation roasting by slag.
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| CN113845289A (en) * | 2020-06-26 | 2021-12-28 | 四川伟晟环境保护有限公司 | Comprehensive utilization method of drilling cuttings and sludge in oil and gas field |
| CN115403402A (en) * | 2022-04-14 | 2022-11-29 | 正升环境科技股份有限公司 | Method for preparing ceramsite from oily sludge |
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| CN115403402A (en) * | 2022-04-14 | 2022-11-29 | 正升环境科技股份有限公司 | Method for preparing ceramsite from oily sludge |
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