CN110499186A - A kind of waste mineral oil impurity oscillation separator and its separation method - Google Patents
A kind of waste mineral oil impurity oscillation separator and its separation method Download PDFInfo
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- CN110499186A CN110499186A CN201910681083.8A CN201910681083A CN110499186A CN 110499186 A CN110499186 A CN 110499186A CN 201910681083 A CN201910681083 A CN 201910681083A CN 110499186 A CN110499186 A CN 110499186A
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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
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
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Abstract
The present invention relates to waste mineral oil separation technology fields, disclose a kind of waste mineral oil impurity oscillation separator, including vibrating knockout drum, oscillation knockout drum is successively arranged overflow segment, sedimentation separation section and buffering segregation section from top to bottom, supersonic oscillations separator is equipped in sedimentation separation section, waste mineral oil entrance and liquid distribution trough are equipped with above supersonic oscillations separator, liquid distribution trough is connected to waste mineral oil entrance, liquid distribution trough is equipped with nozzle, baffle is equipped with above liquid distribution trough, waste mineral oil entrance, liquid distribution trough and baffle are located at sedimentation separation section；Also disclose a kind of waste mineral oil impurity oscillation separation method.The separation of absolute oil in waste mineral oil, solid impurity and moisture may be implemented in waste mineral oil exclusion device of the invention, and compared with prior art, the present invention highly shortened the disengaging time of waste mineral oil；Separative efficiency is improved, removal of impurity is up to 3~20t/h up to 90~95wt%, treating capacity.
Description
Technical field
The present invention relates to waste mineral oil separation technology fields, more particularly to a kind of waste mineral oil impurity vibrates separator
And its separation method.
Background technique
Waste mineral oil refers to that mineral oil has been mixed into the gold of moisture, dust, other miscellaneous oil and component wears generation in use
Belong to the impurity such as powder, lead to color blackening, viscosity increases and machine oil gradually goes bad, and generates organic acid, colloid and pitch shape
Substance.Moisture and solid impurity therein must be removed in regenerative process, and existing removing impurities matter mode is mainly sedimentation separation.
In existing sedimentation separation operation, after waste mineral oil stands 8~12h in a reservoir, solid impurity is isolated in container bottom, is held
Be removed at the top of device the waste mineral oil after moisture and solid impurity, i.e. absolute oil.But its disengaging time is long, low efficiency can only
The solid impurity of 60~80wt%, inferior separating effect are separated, solid small particles impurity can not separate, this will lead to following process and sets
Standby blocking, regeneration of waste mineral oil product quality are unqualified.
Currently, the Chinese invention patent of Patent No. 201710824101.4 discloses a kind of waste mineral oil treatment process,
Including following processing step: step 1, removal of impurities；Step 2, sedimentation；Step 3 takes upper layer waste oil；Step 4, filters pressing；Step
Five, flash distillation；Step 6, film filtering；Step 7, concentrate circulating processing.Although the patent can guarantee the quality of rear end oil product,
It is to be greater than for 24 hours the required sedimentation time.
The Chinese utility model patent of Patent No. 201520436612.5 discloses a kind of polymorphic type oil product mixing abandoned mine
Object oil filtering and impurity removing system, including front end pretreatment unit, the device that is centrifuged at a high speed, middle section inclined plate sedimentation device, rear end are heavy
Division box etc. is dropped, is by filtering, precipitating, centrifugation, sedimentation etc. although the dust removal rate of the patent is up to 98% or more
It is multiple except can just be achieved this dust removal rate after miscellaneous operation, and simply settle and the effect be not achieved.
Summary of the invention
The present invention is directed to disadvantages mentioned above existing in the prior art, provides a kind of waste mineral oil impurity oscillation separator
And its separation method.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of waste mineral oil impurity oscillation separator, including oscillation knockout drum, oscillation knockout drum are successively set from top to bottom
There are overflow segment, sedimentation separation section and buffering segregation section；Overflow segment top is exported equipped with absolute oil, and absolute oil outlet has absolute oil collection
Tank；Supersonic oscillations separator is equipped in sedimentation separation section, supersonic oscillations separator is used for the separation of accelerating solid impurity, surpasses
Waste mineral oil entrance and liquid distribution trough are equipped with above sonication separator, liquid distribution trough is connected to waste mineral oil entrance,
Liquid distribution trough is equipped with nozzle, and baffle is equipped with above liquid distribution trough, and baffle is used to prevent from entering useless in oscillation knockout drum
Mineral oil participates in the absolute oil being separated, and waste mineral oil entrance, liquid distribution trough and baffle are located at sedimentation separation section；Buffering
Segregation section bottom end is equipped with moisture and solid impurity exports, and moisture and solid impurity outlet have impurity holding vessel.
Preferably, further including absolute oil delivery pump and impurity delivery pump, absolute oil delivery pump is connected to absolute oil collecting tank, buffering
Segregation section is connected to by impurity delivery pump with impurity holding vessel.
Preferably, the diameter of overflow segment is less than sedimentation separation section, the diameter for buffering segregation section is less than sedimentation separation section；It is heavy
The diameter for dropping segregation section is big compared with overflow segment and buffering segregation section, can settle for the separation of waste mineral oil and provide enough spaces；
The diameter of overflow segment and buffering segregation section is respectively less than sedimentation separation section, can be convenient the discharge of solid impurity and absolute oil, and more preferable
Realize the separation of solid-liquid and grease in ground.
Preferably, liquid distribution trough includes circulating line, nozzle is arranged upward 30~60 ° in circulating line horizontal direction
In range, nozzle is solid-cone spiral shape nozzle.
Preferably, projection of the liquid distribution trough along middle line, the longitudinal section of baffle is completely covered along the projection of middle line in baffle
Including polygon, arch, hemispherical or taper.
Preferably, supersonic oscillations separator includes shell and supersonic generator, shell is installed on oscillation knockout drum
Inner wall, supersonic generator setting is in oscillation knockout drum, and shell is equipped with fluid through-hole, and fluid through-hole is convenient for oscillation knockout drum
Internal fluid is flowed up and down, several oscillators is equipped in shell, supersonic generator is connect with element signal, is used for
Oscillator vibration is controlled, to realize the vibration of supersonic oscillations separator, fluid through-hole is arranged between oscillator and oscillator.
Preferably, oscillator includes the ultrasonic vibration system being made of ultrasonic transducer and ultrasonic variable amplitude bar, surpass
Acoustic wave transducer is connect with supersonic generator, for converting electrical energy into mechanical energy, generates vibration；Ultrasonic variable amplitude bar and super
Acoustic wave transducer connection, for changing the amplitude of the vibration of ultrasonic transducer input.
Preferably, the frequency for the ultrasonic wave that supersonic generator occurs is 20kHz~90kHz.
A kind of waste mineral oil impurity oscillation separation method is separated with above-mentioned waste mineral oil impurity oscillation separator,
The following steps are included:
(1) waste mineral oil that temperature is 60~120 DEG C, pressure is 0.4~1.2MPa.G is delivered in oscillation knockout drum
Sedimentation separation section, after liquid distribution trough is discharged, into supersonic oscillations separator；
(2) after waste mineral oil stops 3~5h in supersonic oscillations separator, isolated upper layer absolute oil, middle layer moisture
With bottom solid impurity；
(3) absolute oil overflow enters overflow segment, exports and is discharged through absolute oil；Moisture and solid impurity enter buffering segregation section, warp
Moisture and solid impurity outlet discharge.
Preferably, the conveying speed of waste mineral oil is 3~20t/h in step (1), supersonic oscillations separator surpasses
Frequency of sound wave is 20~90kHz.
Preferably, after absolute oil discharge oscillation knockout drum, into absolute oil collecting tank, being conveyed using absolute oil in step (3)
It pumps out；After moisture and solid impurity discharge oscillation knockout drum, impurity holding vessel is delivered to by impurity delivery pump.
Preferably, the impurity content of waste mineral oil is less than or equal to 5wt%.
In supersonic oscillations separator, since absolute oil, the moisture in waste mineral oil are different with the density of solid impurity, water
Dividing density is 1.0 × 103kg/m3, absolute oil density is 0.8 × 103~0.89 × 103kg/m3, the density of solid impurity is 1.5 ×
103~3.0 × 103kg/m3, under supersonic oscillations effect, water and solid impurity are moved downward, buffering segregation section is settled into,
Gravity flow discharge, is then delivered to impurity holding vessel through impurity delivery pump, and absolute oil is moved upwards into overflow segment, then gravity flow discharge
Knockout drum is vibrated, into absolute oil collecting tank, the absolute oil in last absolute oil collecting tank is delivered in follow-up equipment through absolute oil delivery pump.
The present invention is due to using above technical scheme, with significant technical effect:
The separation of absolute oil in waste mineral oil, solid impurity and moisture may be implemented in waste mineral oil exclusion device of the invention,
Waste mineral oil can isolate absolute oil, solid impurity and moisture after entering oscillation 3~5h of knockout drum, compared with prior art,
It highly shortened the disengaging time of waste mineral oil；At the same time, the separative efficiency of separation method of the invention is also from existing skill
60~80wt% of art has been increased to 90~95wt%, and treating capacity is up to 3~20t/h, and being suitable for impurity content is 0~5wt%
Waste mineral oil.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram for vibrating knockout drum.
Fig. 3 is the structural schematic diagram of supersonic oscillations separator.
Fig. 4 is the connection schematic diagram of ultrasonic vibration system.
The toponym that each number designation is referred in attached drawing is as follows: 1-oscillation knockout drum, 11-overflow segments, 12-sink
Segregation section, 13-buffering segregation sections, 2-supersonic oscillations separators, 21-shells, 22-supersonic generators, 23-vibrations drop
Son, 230-ultrasonic vibration systems, 2301-ultrasonic transducers, 2302-ultrasonic variable amplitude bars, 24-fluid through-holes, 3-
Impurity delivery pump, 4-impurity holding vessels, 5-absolute oil collecting tanks, 6-absolute oil delivery pumps, 7-liquid distribution troughs, 8-baffles.
Specific embodiment
Present invention is further described in detail with embodiment with reference to the accompanying drawing.
Embodiment 1
A kind of waste mineral oil impurity oscillation separator, as shown in Figs 1-4, including oscillation knockout drum 1, vibrate knockout drum 1
It is successively arranged overflow segment 11, sedimentation separation section 12 and buffering segregation section 13 from top to bottom；11 top of overflow segment is exported equipped with absolute oil,
Absolute oil outlet has absolute oil collecting tank 5；Supersonic oscillations separator 2, supersonic oscillations separation are equipped in sedimentation separation section 12
Waste mineral oil entrance and liquid distribution trough 7 are equipped with above device 2, liquid distribution trough 7 is connected to waste mineral oil entrance, liquid distribution trough
7 are equipped with nozzle, are equipped with baffle 8 above liquid distribution trough 7, waste mineral oil entrance, liquid distribution trough 7 and baffle 8 are located at sedimentation
Segregation section 12；It buffers 13 bottom end of segregation section and is equipped with moisture and solid impurity outlet, moisture and solid impurity outlet have impurity
Holding vessel 4.
It further include absolute oil delivery pump 6 and impurity delivery pump 3, absolute oil delivery pump 6 is connected to absolute oil collecting tank 5, buffering separation
Section 13 is connected to by impurity delivery pump 3 with impurity holding vessel 4.
The diameter of overflow segment 11 is less than sedimentation separation section 12, and the diameter of buffering segregation section 13 is less than sedimentation separation section 12.
Liquid distribution trough 7 includes circulating line, and nozzle is arranged within the scope of upward 30~60 ° of circulating line horizontal direction,
Nozzle is solid-cone spiral shape nozzle.
Liquid distribution trough 7 is completely covered along the projection of middle line along the projection of middle line in baffle 8, and the longitudinal section of baffle 8 includes more
Side shape, arch, hemispherical or taper.
Supersonic oscillations separator 2 includes shell 21 and supersonic generator 22, and shell 21 is installed in oscillation knockout drum 1
Wall, the setting of supersonic generator 22 is in oscillation knockout drum 1, and shell 21 is equipped with fluid through-hole 24, if being equipped in shell 21
Dry oscillator 23, supersonic generator 22 are connect with 23 signal of oscillator, are vibrated for controlling oscillator 23, and the setting of fluid through-hole 24 exists
Between oscillator 23 and oscillator 23.
Oscillator 23 includes the ultrasonic vibration system being made of ultrasonic transducer 2301 and ultrasonic variable amplitude bar 2302
230, ultrasonic transducer 2301 is connect with supersonic generator 22, for converting electrical energy into mechanical energy, generates vibration；Ultrasound
Wave amplitude transformer 2302 is connect with ultrasonic transducer 2301, for changing the amplitude for the vibration that ultrasonic transducer 2301 inputs.
The frequency for the ultrasonic wave that supersonic generator 22 occurs is 20kHz.
Embodiment 2
A kind of waste mineral oil impurity oscillation separation method is carried out with the waste mineral oil impurity oscillation separator of embodiment 1
Separation comprising following steps:
(1) waste mineral oil that temperature is 60 DEG C, pressure is 0.4MPa.G is delivered to the sedimentation separation section in oscillation knockout drum 1
12, after the discharge of liquid distribution trough 7, into supersonic oscillations separator 2；
(2) after waste mineral oil stops 3h in supersonic oscillations separator 2, isolated upper layer absolute oil, middle layer moisture and
Bottom solid impurity；
(3) absolute oil overflow enters overflow segment 11, exports and is discharged through absolute oil；Moisture and solid impurity enter buffering segregation section
13, through moisture and solid impurity outlet discharge.
In step 1, the conveying speed of waste mineral oil is 3t/h, and the ultrasonic frequency of supersonic oscillations separator 2 is
20kHz。
In step 3, after absolute oil discharge oscillation knockout drum 1, into absolute oil collecting tank 5, sent out using absolute oil delivery pump 6；
After moisture and solid impurity discharge oscillation knockout drum 1, impurity holding vessel 4 is delivered to by impurity delivery pump 3.
In supersonic oscillations separator 2, since absolute oil, the moisture in waste mineral oil are different with the density of solid impurity,
Moisture density is 1.0 × 103kg/m3, absolute oil density is 0.8 × 103~0.89 × 103kg/m3, the density of solid impurity is 1.5
×103~3.0 × 103kg/m3, under supersonic oscillations effect, water and solid impurity are moved downward, and settle into buffering separation
Section 13, gravity flow discharge, is then delivered to impurity holding vessel 4 through impurity delivery pump 3, absolute oil is moved upwards into overflow segment 11, so
Gravity flow discharge oscillation knockout drum 1 afterwards, into absolute oil collecting tank 5, the absolute oil in last absolute oil collecting tank 5 is defeated through absolute oil delivery pump 6
It send into follow-up equipment.
In the present embodiment, the impurity content in waste mineral oil is 1.2wt%, and waste dormant oil utilizes the mineral waste of embodiment 1
Oily impurity vibrates separator, and after the separation of the separation method of the present embodiment, the removal rate of moisture and solid impurity is
90.3wt%.
Embodiment 3
With embodiment 1, the difference is that in the present embodiment:
The temperature of waste mineral oil is 120 DEG C, pressure 1.2MPa.G；
Waste mineral oil stops 5h in supersonic oscillations separator 2；
In step 1, the conveying speed of waste mineral oil is 20t/h, and the ultrasonic frequency of supersonic oscillations separator 2 is
90kHz。
In the present embodiment, the impurity content in waste mineral oil is 5.0wt%, and waste dormant oil utilizes the mineral waste of embodiment 1
Oily impurity vibrates separator, and after the separation of the separation method of the present embodiment, the removal rate of moisture and solid impurity is 95wt%.
Embodiment 4
With embodiment 1, the difference is that in the present embodiment:
The temperature of waste mineral oil is 90 DEG C, pressure 0.6MPa.G；
Waste mineral oil stops 4h in supersonic oscillations separator 2；
The conveying speed of waste mineral oil is 12t/h, and the ultrasonic frequency of supersonic oscillations separator 2 is 55kHz.
In the present embodiment, the impurity content in waste mineral oil is 3.4wt%, and waste dormant oil utilizes the mineral waste of embodiment 1
Oily impurity vibrates separator, and after the separation of the separation method of the present embodiment, the removal rate of moisture and solid impurity is
93.4wt%.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent
Variation and modification, shall all be covered by the patent of the invention.
Claims (10)
1. a kind of waste mineral oil impurity vibrates separator, it is characterised in that: including vibrating knockout drum (1), vibrate knockout drum (1)
It is successively arranged overflow segment (11), sedimentation separation section (12) and buffering segregation section (13) from top to bottom；Overflow segment (11) top is equipped with
Absolute oil outlet, absolute oil outlet have absolute oil collecting tank (5)；Supersonic oscillations separator (2) are equipped in sedimentation separation section (12),
Waste mineral oil entrance and liquid distribution trough (7), liquid distribution trough (7) and mineral waste are equipped with above supersonic oscillations separator (2)
Oil-in connection, liquid distribution trough (7) are equipped with nozzle, are equipped with baffle (8) above liquid distribution trough (7), waste mineral oil entrance,
Liquid distribution trough (7) and baffle (8) are located at sedimentation separation section (12)；It buffers segregation section (13) bottom end and is equipped with moisture and solid impurity
Outlet, moisture and solid impurity outlet have impurity holding vessel (4).
2. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: further include that absolute oil is defeated
Pump (6) and impurity delivery pump (3) are sent, absolute oil delivery pump (6) is connected to absolute oil collecting tank (5), and buffering segregation section (13) passes through miscellaneous
Matter delivery pump (3) is connected to impurity holding vessel (4).
3. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: overflow segment (11)
Diameter is less than sedimentation separation section (12), and the diameter of buffering segregation section (13) is less than sedimentation separation section (12).
4. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: liquid distribution trough
It (7) include circulating line, nozzle is arranged within the scope of upward 30~60 ° of circulating line horizontal direction, and nozzle is solid-cone spiral
Shape nozzle.
5. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: baffle (8) is in
Liquid distribution trough (7) is completely covered along the projection of middle line in the projection of line, and the longitudinal section of baffle (8) includes polygon, arch, hemisphere
Shape or taper.
6. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: supersonic oscillations point
It include shell (21) and supersonic generator (22) from device (2), shell (21) is installed on oscillation knockout drum (1) inner wall, ultrasonic wave
In oscillation knockout drum (1), shell (21) is equipped with fluid through-hole (24) for generator (22) setting, and shell (21) is if interior be equipped with
Dry oscillator (23), supersonic generator (22) are connect with oscillator (23) signal, for controlling oscillator (23) vibration, fluid through-hole
(24) it is arranged between oscillator (23) and oscillator (23).
7. a kind of waste mineral oil impurity according to claim 1 vibrates separator, it is characterised in that: oscillator (23) includes
The ultrasonic vibration system (230) being made of ultrasonic transducer (2301) and ultrasonic variable amplitude bar (2302), ultrasonic wave transducer
Device (2301) is connect with supersonic generator (22), for converting electrical energy into mechanical energy, generates vibration；Ultrasonic variable amplitude bar
(2302) it is connect with ultrasonic transducer (2301), for changing the amplitude of the vibration of ultrasonic transducer (2301) input.
8. a kind of waste mineral oil impurity vibrates separation method, which is characterized in that with the described in any item mineral wastes of claim 1-7
Oily impurity oscillation separator is separated, comprising the following steps:
(1) waste mineral oil that temperature is 60~120 DEG C, pressure is 0.4~1.2MPa.G is delivered to heavy in oscillation knockout drum (1)
It drops segregation section (12), after liquid distribution trough (7) discharge, into supersonic oscillations separator (2)；
(2) after waste mineral oil stops 3~5h in the supersonic oscillations separator (2), isolated upper layer absolute oil, middle layer moisture and
Bottom solid impurity；
(3) absolute oil overflow enters overflow segment (11), exports and is discharged through absolute oil；Moisture and solid impurity enter buffering segregation section
(13), through moisture and solid impurity outlet discharge.
9. a kind of waste mineral oil impurity according to claim 8 vibrates separation method, it is characterised in that: in step (1), give up
The conveying speed of mineral oil is 3~20t/h, and the ultrasonic frequency of supersonic oscillations separator (2) is 20~90kHz.
10. a kind of waste mineral oil impurity according to claim 8 vibrates separation method, it is characterised in that: in step (3),
After absolute oil discharge oscillation knockout drum (1), into absolute oil collecting tank (5), sent out using absolute oil delivery pump (6)；Moisture and solid
After impurity discharge oscillation knockout drum (1), impurity holding vessel (4) are delivered to by impurity delivery pump (3).
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