CN110183070A - Oily sludge deoiling method and device - Google Patents
Oily sludge deoiling method and device Download PDFInfo
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- CN110183070A CN110183070A CN201910549588.9A CN201910549588A CN110183070A CN 110183070 A CN110183070 A CN 110183070A CN 201910549588 A CN201910549588 A CN 201910549588A CN 110183070 A CN110183070 A CN 110183070A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
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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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Abstract
This disclosure relates to which oily sludge deoiling method and device, provide a kind of oily sludge deoiling method, method includes the following steps: the level-one eddy flow rotation oil removing of (A) oily sludge；(B) oily sludge secondary air flow shakes oil removing；(C) oily sludge three swirler rotation oil removing；(D) cyclone gas-liquid separates；And (E) carrier gas recycles.Additionally provide a kind of oily sludge degreasing unit.
Description
Technical field
The disclosure belongs to petrochemical industry and environment protection field, is related to a kind of eddy flow rotation concussion for realizing oily phase in oily sludge
The method and apparatus of removing and condensing recovery.Specifically, this disclosure relates to a kind of oily sludge deep dehydration method and device.
Background technique
With deepening continuously for crude resources exploitation dynamics, the yield of oily sludge is increased rapidly, both at home and abroad to containing greasy dirt
The exploitation dynamics of mud processing technique and equipment is also continuing to increase.
Oily sludge includes the oil-containing solids and gunk being dropped, and is that a kind of complicated component, chemical property are stable
The sticky shape solid waste of brownish black, the source of oily sludge are as follows:
(1) oily sludge that oil extraction generates: Ground Processing System and oil recovery treatment process in oil extraction
The oily sludge of middle formation, such sludge oil content is high, viscosity is big, dehydration is difficult, if untreated direct emission, not only will affect
The quality of outer output oil, also result in injection water quality and wastewater disposition be difficult to it is up to standard；
(2) oily sludge that oil field gathering and transportation process generates: including the oil tank, settling tank, sewage in block station, multi-purpose station
Oil sand, the greasy filth that tank, oil separator bed mud and oily water treatment facility, lighter hydrocarbons processing factory, purifying device for natural gas clear out,
The oily sludge that drillng operation, conduit wiring piercing generate, the hydrocarbons content of sludge from oil tank is in 70 weight % or so, moisture content
In 25 weight % or so, and inorganic matter and silt only account for 5 weight %, have great recovery value；
(3) oily sludge that sewage from oil refinery Treatment stations generate: mainly floating including oil plant oil separator bed mud, floation tank
Slag, petroleum tank bed mud, the moisture content of these sludge in 40~90 weight %, oil content between 10~50 weight %, wherein with
Dross amount is maximum, accounts for 80 weight % of sewage from oil refinery treatment plant sludge total amount.
Generally, oil content is 10~50 weight %, 40~90 weight % of moisture content in oily sludge.Currently, China contains
Greasy dirt year, yield was up to more than 300 ten thousand tons, and only grand celebration, triumph, three elephant of the Liaohe River produce about 2,000,000 tons of oily sludge per year.In recent years
Carry out the research that researcher has carried out a large amount of contained Mud Treatment Technologies, but is mostly the angle from end treatment, recycling
Producing level is lower.
As oil production rate is continuously increased, the yield of oily sludge is also constantly increased with it, if containing greasy dirt for these
Mud is untreated or deals with improperly, not only pollutes the environment, and pollutes periphery water source and arable land, while being also to the one of petroleum resources
Kind significant wastage.
Therefore, the oil carried in oily sludge is mutually removed in depth, oil mutually further recycles, and is to reduce sludge to account for
Ground prevents secondary pollution, resource utilization, the key of development environment friendly economy.
Chinese patent CN 200710021086.6 authorizes a kind of oil-removing treatment process of oil-containing sludge, by that will contain greasy dirt
Mud and cleaning solution mix in proportion, and ultrasonic radiation 10~40 minutes, air bearing 3~100 minutes in aeration floation tank, gravitational settling
1~6 hour, to remove the oily phase in sludge.But ultrasonic radiation easily increases sewage sludge viscosity in the technique, and dewatering reduces,
The frequency of ultrasonic wave, power, electrolyte content, muddy water have the treatment effect of sludge than, processing time and temperature etc. very big
Influence, processing requirement is more harsh, is unfavorable for engineer application；And the settlement treatment time is long, process flow is complicated.
Chinese patent CN201810321171.2 authorizes a kind of oily sludge drying and incinerating integrated processing technique, oil-containing
Drying sludge process dries oily sludge in such a way that wind-force is dry by high-temperature flue gas drying unit repeatedly, dries
Rear sludge centralized collection, pyrolysis, isolate pyrolysis gas, and it is burnt to generate pyrolysis, and pyrolysis gas discharge condense and centralized collection,
Pyrolysis coke is delivered to burning unit, the burnt progress fluidized bed combustion of pyrolysis is adjusted by the way of multi-faceted air feed burning unit
The burnt ignition temperature of section pyrolysis, the flue gas after burning are discharged into fume treatment unit, in fume treatment unit, carry out desulfurization to flue gas
Denitration.But it is big to be dried facility investment, and processing cost is high, and organic matter burning may generate the extremely toxic substances such as dioxin, makes
At secondary pollution and pyrolysis plant maintenance and operating cost are high, energy consumption is high and can not handle High water cut greasy filth.
United States Patent (USP) US20040943653 authorizes a kind of bioreactor system for biodegradable oily sludge,
The sequence batch reactor tank that bioreactor is one 10000 gallons, the live biometric for oily sludge are degraded, have been deposited
And adapt to the bacterium of oily sludge in two weeks and be decreased to less than the hydrocarbon in oily sludge from 20000ppm
100ppm after degradation cycle needs 5 days, five days, closes circulating pump and aerating system, solid is made to be deposited to tank bottom, ultra filtration unit
Need about 16 hours materials come in treatment reactor tank.But the biological treatment disposal of oily sludge period is long, and cannot recycle
Crude oil.
In conclusion there is an urgent need in the art to develop, efficient one kind, environmental protection, energy saving, process flow is simple, de-oiling efficiency
High oily sludge depth deoiling method and device mitigate sludge to environment to realize the target of oily sludge resource utilization
Secondary pollution influence.
Summary of the invention
Present disclose provides a kind of novel oily sludge depth deoiling method and devices, solve and exist in the prior art
The problem of.
The application technical problem to be solved is: traditional disposal of oily sludge facility investment is big, and processing cost is high,
Organic matter burning may generate the extremely toxic substances such as dioxin, cause secondary pollution or long processing period, cannot mutually recycle to oily
It utilizes, especially to the separation of oil low efficiency in sludge gap, causes the waste of petroleum resources；The application is using in eddy flow field
The centrifugation desorption process of pollutant in the high speed rotation reinforcement sludge duct of mud granule, up to 20000~60000 revs/min
Rotational velocity can make it is oily do not undergo phase transition mutually in the case where removed from sludge duct, process is succinct, is easy to implement, right
Oily phase removal efficiency is high in sludge duct, and oil can mutually recycle, and will not generate secondary pollution.
The application another technical problem to be solved is: circulating carried is only used during existing disposal of oily sludge
Directly or indirectly to heat sludge, causes heat gas depletion rate too fast, energy consumption improves；The application is shaken based on pulse pneumatic
Oil removing principle is swung, the suspension stay time of sludge is improved, strengthens oily phase using the inertia force that the acceleration changed repeatedly generates
Removing, has that low energy consumption, and carrier gas utilization rate is high, the high advantage of oil removal efficiency.
On the one hand, present disclose provides a kind of oily sludge deoiling methods, method includes the following steps:
(A) oily sludge level-one eddy flow rotation oil removing: under carrier gas effect, carrying out eddy flow rotation oil removing to oily sludge,
To reduce the viscosity of the oily phase of oily sludge carrying, the removing of oily phase in Sludge Surface and duct is realized；
(B) oily sludge secondary air flow shakes oil removing: under carrier gas effect, making to obtain in step (A) through eddy flow rotation oil removing
To mud granule shake repeatedly, to extend the residence time of mud granule, induce sludge in oil mutually movement migrates out, improve
Deoiling of sludge efficiency；
(C) oily sludge three swirler rotation oil removing: in step (B) through the air-flow obtained oily sludge of concussion oil removing into
One step carries out eddy flow rotation oil removing, while carrying out oily sludge eddy flow trapping, obtains the gas for being free of oily sludge greatly；
(D) cyclone gas-liquid separates: carrying out cyclone gas-liquid separation to gas obtained in step (C), is taken with removing in gas
The oil of band obtains clean gas and recycles mutually with moisture drop；And
(E) carrier gas recycles.
In one preferred embodiment, in step (A), the oily sludge includes the sludge for being mixed into mink cell focus,
Sludge oil content is 10%~50%, by weight.
In another preferred embodiment, in step (A), carrier gas is nitrogen, and temperature is room temperature~300 DEG C,
Sludge after carrying out oil removing in level-one eddy flow rotation oil expeller enters secondary air flow concussion oil removing through underflow opening, and carrier gas is through overflow
Mouth discharge recycles.
In another preferred embodiment, the temperature of carrier gas is room temperature~250 DEG C.
In another preferred embodiment, the temperature of carrier gas is room temperature~200 DEG C.
In another preferred embodiment, in step (B), carrier gas is nitrogen pulse pneumatic, concussion effect accumulation
Sludge total displacement direction is discharged from secondary air flow concussion oil expeller top exit upwards.
In another preferred embodiment, after three swirler rotation oil removing having been carried out in step (C), mud granule
Oil content is reduced within 0.3 weight %.
On the other hand, present disclose provides a kind of oily sludge degreasing unit, which includes:
Level-one eddy flow rotation oil expeller, for carrying out the level-one eddy flow rotation oil removing of step (A) oily sludge: being acted in carrier gas
Under, eddy flow rotation oil removing is carried out to oily sludge, to reduce the viscosity of the oily phase of oily sludge carrying, realizes Sludge Surface and hole
The removing of oily phase in road；
The secondary air flow concussion oil expeller being connect with level-one eddy flow rotation oil expeller, for carrying out step (B) oily sludge
Secondary air flow shakes oil removing: under carrier gas effect, shaking the mud granule obtained in step (A) through eddy flow rotation oil removing repeatedly
It swings, to extend the residence time of mud granule, induces oil phase movement in sludge to migrate out, improve deoiling of sludge efficiency；
The three swirler rotation oil expeller being connect with secondary air flow concussion oil expeller, for carrying out step (C) oily sludge
Three swirler rotation oil removing: the oily sludge further progress eddy flow rotation obtained in step (B) through air-flow concussion oil removing is removed
Oil, while oily sludge eddy flow trapping is carried out, obtain the gas for being free of oily sludge greatly；And
The gas-liquid cyclonic separation tower being connect with three swirler rotation oil expeller, for carrying out the separation of step (D) cyclone gas-liquid:
Cyclone gas-liquid separation is carried out to gas obtained in step (C), to remove the oil carried in gas mutually with moisture drop, is obtained pure
Net gas recycles.
In one preferred embodiment, described device further include:
The pipeline heater connecting with level-one eddy flow rotation oil expeller is used for level-one eddy flow rotation oil expeller inlet gas
It is heated to room temperature~300 DEG C；And
The pulsating airflow generator being connect with level-one eddy flow rotation oil expeller, for generating the pulsation gas of sine and cosine waveform
Stream, ripple frequency are 1.5Hz~2.5Hz.
In another preferred embodiment, the level-one eddy flow rotation oil expeller, pulsating airflow generator, second level gas
Stream concussion oil expeller and three swirler rotation oil expeller can be in parallel, and quantity in parallel is determined according to treatment scale, can for two groups or more
Multiple groups finally carry out gas-liquid point by gas-liquid cyclonic separation tower by the tail gas that the three swirler rotation oil expeller of afterbody is discharged
From the oily phase that removing gas carries, obtained pure carrier gas is recycled.
The utility model has the advantages that
The major advantage of methods and apparatus of the present invention is:
(1) high shear and the mechanical stripping effect that are subject in eddy flow field using sludge and mud granule from
High speed rotation in eddy flow field, the centrifugation removing of oily phase in reinforcement sludge accelerate in sludge oil mutually and the update of heat gas speed
Rate reduces oil phase viscosity, reduces the viscosity resistance that oil is mutually subject to, to strengthen oil removal process, improves oil removal efficiency, reduces sludge
Volume and quality realize the decrement of sludge.
(2) oil removing is shaken using pulse pneumatic, improves the suspension stay time of sludge, produced using the acceleration changed repeatedly
Raw inertia force strengthens the removing of oily phase, and efficiency of energy utilization is high, and process is simple, and easy to operate, operating cost is low, and will not produce
Raw secondary pollution, realizes oily sludge harmless treatment.
(3) oil is not undergone phase transition mutually in oily sludge depth oil removal process of the invention, and low energy consumption, and oil is mutually final
It can be recycled in gas purification tower, realize the resource target of disposal of oily sludge.
Detailed description of the invention
Attached drawing is provided for a further understanding of the present invention, it simply forms a part of this specification with into one
Step explains the present invention, is not construed as limiting the invention.
Fig. 1 is the oily sludge depth oil removing process flow chart of a preferred embodiment according to the present invention.
Specific embodiment
Present inventor has found that entrained oil is largely mutually in oily sludge afterwards after extensive and in-depth study
Hole oil, viscosity resistance of the hole oil in fine duct are bigger, it is difficult to which separating from hole is oily sludge machinery
The main reason for oil removal efficiency is not high；And in high-speed rotating eddy flow field, the rotational velocity of mud granule up to 20000~
60000 revs/min, the centrifugal force greater than viscosity resistance can be provided for hole oil, come out to be desorbed from sludge duct.
Present inventor also found, be generated due to sludge gravity, aerostatic buoyancy, drag force and pulse pneumatic to sludge
The synergistic effect of additional force, mud granule can quickly shake repeatedly and improve the suspension stay of sludge under pulse pneumatic effect
Time, mud granule do periodic accelerated motion, and the oil in sludge duct is mutually since inertia force effect can be removed further.
Based on the studies above and discovery, the application develops a kind of oily sludge depth deoiling method and device, has work
The advantages that skill process is simple, and low energy consumption, and de-oiling efficiency is high, efficiently solves problems of the prior art.
In the disclosure in a first aspect, provide a kind of oily sludge depth deoiling method, method includes the following steps:
(A) oily sludge level-one eddy flow rotation oil removing: using high temperature nitrogen as carrier gas, the oily phase that oily sludge carries is reduced
Viscosity realizes the high efficiency of oily phase in Sludge Surface and duct, low energy consumption removing；
(B) oily sludge secondary air flow shakes oil removing: using pulse pneumatic as carrier gas, shake mud granule quickly repeatedly,
Extending the residence time of mud granule, from revolution coupling second level concussion induction sludge, mutually movement migrates out oil level-one eddy flow,
Improve deoiling of sludge efficiency；
(C) oily sludge three swirler rotation oil removing: to containing after level-one eddy flow rotation oil removing, secondary air flow concussion oil removing
Greasy dirt further progress eddy flow rotation depth oil removing；
(D) cyclone gas-liquid separates: the oil carried in removing gas is mutually with moisture drop, obtained clean gas circulation benefit
With；And
(E) carrier gas recycles.
In the disclosure, oily sludge described in step (A) includes being mixed into the mink cell focuses such as crude oil, product oil, residual oil
Sludge, sludge oil content are 10~50 weight %.
In the disclosure, in step (A), oily sludge eddy flow rotation oil removing in cyclone, heating carrier gas temperature is
Room temperature~300 DEG C, preferably room temperature~250 DEG C, more preferable room temperature~200 DEG C；Sludge after oil removing enters next stage through underflow opening
Oil removing is shaken, carrier gas enters next stage concussion oil expeller through overflow port and recycles.
In the disclosure, concussion air-flow described in step (B) is the heating carrier gas of flow period variation, is revolved through level-one
Sludge concussion reinforcing oil removing repeatedly under the carrier gas effect of changes in flow rate of rotation oil removing is flowed, concussion effect accumulation makes the total position of sludge
Direction is moved to be discharged from concussion oil expeller top exit upwards.
In the disclosure, after the three swirler rotation oil removing described in step (C), the oil content of mud granule is reduced to
Within 0.3 weight %, meet discharge standard.
In the disclosure, cyclone gas-liquid described in step (D) separates oily phase removal process by removing to three-level in hot carrier gas
The oil that oily process generates mutually progress eddy flow trapping separation, obtains oily mutually progress reuse, thus realize that oil mutually recycles in oily sludge,
The purpose of sewage sludge harmlessness.
In the second aspect of the disclosure, a kind of oily sludge depth degreasing unit is provided, which includes:
Level-one eddy flow rotation oil expeller, for carrying out above-mentioned steps (A)；
The secondary air flow concussion oil expeller being connect with level-one eddy flow rotation oil expeller, for carrying out above-mentioned steps (B)；
The three swirler rotation oil expeller being connect with secondary air flow concussion oil expeller, for carrying out above-mentioned steps (C)；And
The gas-liquid cyclonic separation tower being connect with three swirler rotation oil expeller, for carrying out above-mentioned steps (D).
In the disclosure, described device further include: the pipeline heater connecting with level-one eddy flow rotation oil expeller, being used for will
Level-one eddy flow rotation oil expeller inlet gas is heated to room temperature~300 DEG C, preferably room temperature~250 DEG C, more preferable room temperature~200
℃。
In the disclosure, described device further include: the pulsating airflow generator connecting with level-one eddy flow rotation oil expeller is used
In the pulse pneumatic for generating sine and cosine waveform, ripple frequency is 1.5Hz~2.5Hz.
In the disclosure, the level-one eddy flow rotation oil expeller, pulsating airflow generator, secondary air flow shake oil expeller and
Three swirler rotation oil expeller can also be in parallel in addition to single group use, and quantity in parallel can be determined according to treatment scale, and parallel connection group number can
It is two groups or more, gas-liquid cyclonic separation tower is finally entered by the tail gas that last group of three swirler rotation oil expeller is discharged and is carried out
Gas-liquid separation removes the oil carried in gas mutually, obtains pure nitrogen circulation and utilizes.
Below referring to attached drawing.
Fig. 1 is the oily sludge depth oil removing process flow chart of a preferred embodiment according to the present invention.Such as Fig. 1 institute
Show, pulse pneumatic (nitrogen) is heated to room temperature~300 DEG C by pipeline heater 1, in level-one eddy flow rotation oil expeller 2, to containing
Greasy dirt carry out the rotation oil removing of heat gas eddy flow, heat gas reduce sewage sludge viscosity, using sludge in eddy flow field high speed from
Turn the desorption process of oily phase in reinforcement sludge duct, the oily phase that removing sludge carries, the sludge after eddy flow rotation oil removing is with air-flow
It is discharged into secondary air flow concussion oil expeller 4 via underflow opening, heating carrier gas is discharged into secondary air flow shake via overflow port
It swings in oil expeller 4；Pulsating airflow generator 3 regulate and control secondary air flow concussion 4 inlet gas flow rate of oil expeller in just, cosine function arteries and veins
Dynamic waveform variation, ripple frequency are 1.5Hz~2.5Hz；In secondary air flow concussion oil expeller 4, through level-one eddy flow rotation oil removing
Sludge changes in flow rate carrier gas effect under repeatedly concussion strengthen oil removing, concussion effect accumulation keep sludge total displacement direction upward
And it is discharged from top exit；The sludge being discharged from the top of secondary air flow concussion oil expeller 4 enters three swirler rotation with air-flow and removes
In oily device 5, turn in oil expeller 5 again in three swirler, the further eddy flow rotation of sludge is strengthened oil and mutually removed, while carrying out sludge rotation
Stream trapping, efficiently separates sludge with gas, obtains the gas without sludge and is discharged, in final three swirler rotation oil expeller 5
Gas carry oil phase drop and be discharged from overflow port, into gas-liquid cyclonic separation tower 6, oil removing sludge is outer from underflow opening discharge
Fortune；In gas-liquid cyclonic separation tower 6, Oil in circulating gas phase drop separation is come out by gas-liquid cyclonic separation tower, oily phase is obtained and returns
It receives (drip), pure gas recycles；Wherein, carrier gas recycles；Level-one eddy flow rotation oil expeller, pulse pneumatic
Generator, secondary air flow shakes oil expeller and three swirler rotation oil expeller can multistage use in parallel.
Embodiment
Below with reference to specific embodiment, the present invention is further explained.It should be appreciated, however, that these embodiments are only used for
It is bright the present invention and be not meant to limit the scope of the invention.The test method of actual conditions is not specified in the following example, usually
According to normal conditions, or according to the normal condition proposed by manufacturer.Unless otherwise indicated, all percentage and number be by weight
Meter.
Embodiment 1:
In an oily sludge depth degreasing unit, removed according to the depth that the method for the present invention and device carry out oily sludge
Oil experiment, specific operation and effect are described as follows:
1. oily sludge property
Testing oily sludge used is the discarded oil base drilling fluid for being derived from shale gas exploitation situ of drilling well, uses soxhlet extraction
It extracts oil therein and measures the oil content in extract liquor with infrared spectrometric oil detector again to calculate the oil content of initial material；With
The density of volumetric method survey material；The partial size of particle is measured with laser particle analyzer, as a result as shown in table 1 below.
Table 1: oily sludge property
2. implementation process
Implement referring to the method for the present invention, specific as follows:
Material is oily sludge in the present embodiment, and gas selects nitrogen in oil removal process.
(1) experimental provision inlet amount is 50kg/h, air inflow 100m3/ h, pipeline heater add conduit entrance gas
Heat, heating temperature successively takes room temperature, 50 DEG C, 100 DEG C, 150 DEG C, 200 DEG C, 250 DEG C, 300 DEG C, 350 DEG C of eight groups of temperature in experiment,
It is gradually warmed up searching optimum heating temperature, in level-one eddy flow rotation oil expeller, heat gas eddy flow is carried out certainly to oily sludge
Turn to strengthen oil removing, using between the high speed rotation reinforcement sludge of sludge in eddy flow field in duct oily phase desorption process, remove sludge
After the oily phase of carrying, sludge enters in secondary air flow concussion oil expeller with air-flow.
(2) pulsating airflow generator regulation device inlet gas flow rate in just, cosine function pulsating waveform variation, in second level
Air-flow shakes in oil expeller, shakes oil removing using pulse pneumatic, improves the suspension stay time of sludge, is added using what is changed repeatedly
The inertia force that speed generates strengthens the removing of oily phase, and the sludge after air-flow concussion oil removing is discharged into three by top exit with carrier gas
In grade eddy flow rotation oil expeller.
(3) in three swirler rotation oil expeller, the further eddy flow rotation of sludge is strengthened oil and is mutually removed, while carrying out sludge
Eddy flow trapping, efficiently separates sludge with gas, obtains the gas without sludge and is discharged, in final three swirler rotation oil expeller
Gas carry oil phase drop from overflow port be discharged, into gas-liquid cyclonic separation tower, sludge from underflow opening be discharged transport outward.
(4) in gas-liquid cyclonic separation tower, Oil in circulating gas phase drop separation is come out by gas-liquid cyclonic separation tower, is obtained
Oily mutually to recycle, pure gas recycles.
3. implementation result
Oily sludge oil content is high before handling, and the initial oil rate of oily sludge is 31.8 weight %, and dark thick is presented
Muddy, adhere to each other together between sludge, after oily sludge depth degreasing unit oil removing, dispersed is presented in oily sludge
Stemness grey powder, and there is good mobility.Oil content such as the following table 2 institute after oily sludge oil removing under different temperatures
Show.
Table 2: oil removing sludge oil content under different temperatures
When temperature is more than 300 DEG C, oil content can be reduced to 3 weight % hereinafter, highest can drop to 1.7 weight %, highest
Oil removal efficiency can achieve the variation tendency of oil removal efficiency in 94.65%, You Shangbiao 2 to speculate that oily sludge most preferably removes oil temperature
Degree is in 200 DEG C~300 DEG C, the experiment proves that the feasibility of oily sludge depth oil removing and prominent effect.
Oil content reduces by 10.22% to oily sludge at room temperature, it was demonstrated that oily sludge does not rely on phase during the experiment
The physical mechanical desorption power for becoming and realizing deoiling of sludge, but high-speed rotational rotation and air-flow concussion process is relied on to generate overcomes viscous
Resistance hysteresis realizes deoiling of sludge.
After oil removing process processing oily sludge is shaken in 500kg/h oily sludge eddy flow rotation, petroleum hydrocarbon is dirty in de-oiling sludge
It contaminates object residual quantity and is lower than 0.3 weight %, while the rate of recovery of oil is higher than 98%, fuel of the natural gas as pipeline heater is used
Amount is about 1.7Nm3/ h has efficient low-consume, compact-sized advantage compared with other technologies.To one 20000 tons/year containing greasy dirt
Mud carries out depth oil removal treatment, and 16000 tons/year of oil removing sludge, petroleum hydrocarbon contaminant residual content is lower than 0.3 weight %, receives oil
For amount up to 4000 tons/year, the oily phase rate of recovery is greater than 98%.
The operating cost of technique can be effectively reduced in the implementation of the technology, economize on resources, and protect environment, and meet environmental protection industry (epi)
The sludge treatment target of " low minimizing, innoxious, stabilisation, recycling ".
Above-mentioned listed embodiment is only presently preferred embodiments of the present invention, implementation model not for the purpose of limiting the invention
It encloses.Equivalence changes and modification made by the content of i.e. all claims according to the present invention, all should be technology model of the invention
Farmland.
All references mentioned in the present invention is incorporated herein by reference, independent just as each document
It is incorporated as with reference to such.In addition, it should also be understood that, after reading the above teachings of the present invention, those skilled in the art can
To make various changes or modifications to the present invention, such equivalent forms equally fall within model defined by the application the appended claims
It encloses.
Claims (10)
1. a kind of oily sludge deoiling method, method includes the following steps:
(A) oily sludge level-one eddy flow rotation oil removing: under carrier gas effect, eddy flow rotation oil removing is carried out to oily sludge, with drop
The viscosity for the oily phase that low oily sludge carries realizes the removing of oily phase in Sludge Surface and duct；
(B) oily sludge secondary air flow shakes oil removing: under carrier gas effect, making to obtain in step (A) through eddy flow rotation oil removing
Mud granule shakes repeatedly, to extend the residence time of mud granule, induces oil phase movement in sludge to migrate out, improves sludge
Oil removal efficiency；
(C) oily sludge three swirler rotation oil removing: further to the oily sludge obtained in step (B) through air-flow concussion oil removing
Eddy flow rotation oil removing is carried out, while carrying out oily sludge eddy flow trapping, obtains the gas for being free of oily sludge greatly；
(D) cyclone gas-liquid separates: carrying out cyclone gas-liquid separation to gas obtained in step (C), is carried in gas with removing
Oily phase and moisture drop, obtain clean gas and recycle；And
(E) carrier gas recycles.
2. the method as described in claim 1, which is characterized in that in step (A), the oily sludge includes being mixed into mink cell focus
Sludge, sludge oil content be 10%~50%, by weight.
3. the method as described in claim 1, which is characterized in that in step (A), carrier gas is nitrogen, temperature be room temperature~
300 DEG C, the sludge after oil removing is carried out in level-one eddy flow rotation oil expeller enters secondary air flow concussion oil removing, carrier gas through underflow opening
It is recycled through overflow port discharge.
4. method as claimed in claim 3, which is characterized in that the temperature of carrier gas is room temperature~250 DEG C.
5. method as claimed in claim 3, which is characterized in that the temperature of carrier gas is room temperature~200 DEG C.
6. the method as described in claim 1, which is characterized in that in step (B), carrier gas is nitrogen pulse pneumatic, and concussion is made
Sludge total displacement direction is discharged from secondary air flow concussion oil expeller top exit upwards with accumulation.
7. the method as described in claim 1, which is characterized in that dirty after having carried out three swirler rotation oil removing in step (C)
Mud particle oil content is reduced within 0.3 weight %.
8. a kind of oily sludge degreasing unit, the device include:
Level-one eddy flow rotation oil expeller (2), for carrying out the level-one eddy flow rotation oil removing of step (A) oily sludge: being acted in carrier gas
Under, eddy flow rotation oil removing is carried out to oily sludge, to reduce the viscosity of the oily phase of oily sludge carrying, realizes Sludge Surface and hole
The removing of oily phase in road；
Secondary air flow concussion oil expeller (4) being connect with level-one eddy flow rotation oil expeller (2), for carrying out step (B) containing greasy dirt
Mud secondary air flow shakes oil removing: under carrier gas effect, shaking the mud granule obtained in step (A) through eddy flow rotation oil removing repeatedly
It swings, to extend the residence time of mud granule, induces oil phase movement in sludge to migrate out, improve deoiling of sludge efficiency；
The three swirler rotation oil expeller (5) being connect with secondary air flow concussion oil expeller (4), for carrying out step (C) containing greasy dirt
Mud three swirler rotation oil removing: the oily sludge further progress eddy flow rotation to being obtained in step (B) through air-flow concussion oil removing
Oil removing, while oily sludge eddy flow trapping is carried out, obtain the gas for being free of oily sludge greatly；And
The gas-liquid cyclonic separation tower (6) being connect with three swirler rotation oil expeller (5), for carrying out step (D) cyclone gas-liquid point
From: cyclone gas-liquid separation is carried out to gas obtained in step (C), to remove the oil carried in gas mutually with moisture drop, is obtained
It is recycled to clean gas.
9. device as claimed in claim 8, which is characterized in that described device further include:
The pipeline heater (1) being connect with level-one eddy flow rotation oil expeller (2), for by level-one eddy flow rotation oil expeller (2) into
Gas is heated to room temperature~300 DEG C；And
The pulsating airflow generator (3) being connect with level-one eddy flow rotation oil expeller (2), for generating the pulsation gas of sine and cosine waveform
Stream, ripple frequency are the Hz of 1.5 Hz~2.5.
10. device as claimed in claim 9, which is characterized in that the level-one eddy flow rotation oil expeller (2), pulse pneumatic hair
Raw device (3), secondary air flow concussion oil expeller (4) and three swirler rotation oil expeller (5) can be in parallel, and quantity in parallel is advised according to processing
Mould determines, can be two or more groups, finally pass through gas by the tail gas that the three swirler rotation oil expeller (5) of afterbody is discharged
Liquid cyclonic separation tower (6) carries out the oily phase that gas-liquid separation removing gas carries, and obtained pure carrier gas recycles.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0496915A1 (en) * | 1991-01-31 | 1992-08-05 | Heiner Dipl.-Ing. Dr. Kreyenberg | Method for treating deposits |
| CN1731057A (en) * | 2005-09-05 | 2006-02-08 | 吉化集团公司 | Method and apparatus for drying copolymer of methyl methacrylate-styrene-butadiene |
| US20060051856A1 (en) * | 2004-09-03 | 2006-03-09 | Maga Gerardo F | Bioreactor system for biological degradation of oily sludge |
| CN201155908Y (en) * | 2007-06-14 | 2008-11-26 | 王志富 | Interior heat type multilevel fluid drying apparatus |
| CN101870546A (en) * | 2010-06-01 | 2010-10-27 | 广州市保明莱环保科技有限公司 | River surge silt harmless and recycling treatment method |
| CN109052903A (en) * | 2018-09-12 | 2018-12-21 | 上海华畅环保设备发展有限公司 | Oily sludge suspended state rotation oil removing method of disposal and device |
-
2019
- 2019-06-24 CN CN201910549588.9A patent/CN110183070A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0496915A1 (en) * | 1991-01-31 | 1992-08-05 | Heiner Dipl.-Ing. Dr. Kreyenberg | Method for treating deposits |
| US20060051856A1 (en) * | 2004-09-03 | 2006-03-09 | Maga Gerardo F | Bioreactor system for biological degradation of oily sludge |
| CN1731057A (en) * | 2005-09-05 | 2006-02-08 | 吉化集团公司 | Method and apparatus for drying copolymer of methyl methacrylate-styrene-butadiene |
| CN201155908Y (en) * | 2007-06-14 | 2008-11-26 | 王志富 | Interior heat type multilevel fluid drying apparatus |
| CN101870546A (en) * | 2010-06-01 | 2010-10-27 | 广州市保明莱环保科技有限公司 | River surge silt harmless and recycling treatment method |
| CN109052903A (en) * | 2018-09-12 | 2018-12-21 | 上海华畅环保设备发展有限公司 | Oily sludge suspended state rotation oil removing method of disposal and device |
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