CN110229690A - Containing solid oils or oil-containing solid phase solvent extraction recycling and processing device and method - Google Patents
Containing solid oils or oil-containing solid phase solvent extraction recycling and processing device and method Download PDFInfo
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- CN110229690A CN110229690A CN201910320945.4A CN201910320945A CN110229690A CN 110229690 A CN110229690 A CN 110229690A CN 201910320945 A CN201910320945 A CN 201910320945A CN 110229690 A CN110229690 A CN 110229690A
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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
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
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Abstract
One kind is containing solid oils or oil-containing solid phase solvent extraction recycling and processing device and method, which includes extracting centrifugal unit, and sedimentation unit, flash evaporation unit is spray-dried unit；Described extraction centrifugal unit is used to that solid oils will to be contained or oil-containing solid phase extracts, and obtains centrifugal clear liquid and centrifugation residue；The sedimentation unit be connected to extraction centrifugal unit, to the solid removal in the centrifugal clear liquid that will obtain, liquid and bottom liquid at the top of acquisition；The flash evaporation unit is connected to sedimentation unit, obtains oil or pitch and solvent the top liquid of acquisition is carried out distillation, recycles after solvent recovery heat；The spray drying unit is connected to extraction centrifugal unit, the centrifugation residue will obtain carries out solvent recovery, obtains solvent and solid powder.With can sufficiently recycle oil product or solvent, the advantages of not easily causing frozen plug, and be suitble to the resource recyclings such as the extensive dregs of fat and oil sludge and sand.
Description
Technical field
The present invention relates to containing solid extraction and recoveries processing unit and the technique such as oils or oil-containing the solid phase such as dregs of fat and oil sludge and sand, master
Wanting application field includes that the coal liquefaction dregs of fat, kerosene refine oil slag, heavy oil floating bed or slurry bed system hydrogenated oil slag, oilfield exploitation oil altogether
Mud, refinery's greasy filth, ship cabin base oil mud, natural oil-sand or oil field etc..This technology is suitable for the institutes such as the dregs of fat, greasy filth, oil-sand, oil field
There are Oil Recovery and solid slag processing containing solid oils or oil-containing solid phase, main function is oil product or the drip extracted in oil-containing solid phase
Blueness etc., and processing is carried out to the solid phase of de-oiling and produces class coal fuel, the substances such as the dregs of fat, greasy filth, oil-sand, oil field are made full use of,
Eat it is dry bleed, comprehensive raising resource utilization improves chemical industry industrial chain, have great economic benefit and environmental protection effect
Benefit.
Background technique
The coal liquefaction dregs of fat, kerosene refine oil slag, heavy oil floating bed or slurry bed system hydrogenated oil slag, oilfield exploitation greasy filth, refinery altogether
The resources such as greasy filth, ship cabin base oil mud, natural oil-sand or oil field, current utilization mostly use burning, pyrolysis, hot water wash or extraction
Technique, without large-scale industrial application device, portion of techniques is only limitted to laboratory research, and resource fails to make full use of, and deposits
The wasting of resources the case where.
Main problem is as follows:
(1) resources such as the dregs of fat and oil sludge and sand fail to extract oil product component therein, and fuel burn-up, the dregs of fat are done together with solid phase
And the prices such as oil sludge and sand are equal to coal class, waste extremely serious.
(2) solid contents such as the dregs of fat and oil sludge and sand are higher, easily solidification, easily blocking, easy coking, and processing is very difficult, are situated between containing solid
The serious wears such as confrontation equipment, pipeline, it is very difficult.
(3) treatment processes such as the dregs of fat and oil sludge and sand oil product or solvent recovery, which are not thorough, leads to no economic benefit, the dregs of fat and oil
Solid phase can not carry out downstream processing after the processing such as silt particle.
(4) a large amount of waste water, useless solid etc. are generated after the processing such as the dregs of fat and oil sludge and sand, generates new environmental issue.
(5) existing processing technique can not be suitble to the resource recyclings such as the extensive dregs of fat and oil sludge and sand.
In view of the above-mentioned problems, it is necessary to develop the resource reclaims technologies such as the new dregs of fat and oil sludge and sand, new technology has prediction
Property, economy, operability, and be environmentally friendly technology, it is suitble at the resource reclaims such as the dregs of fat and the oil sludge and sand of various scales
Reason.
Summary of the invention
The present invention be directed to the prior art above-mentioned deficiency, provide it is a kind of can sufficiently recycle oil product or solvent, do not easily cause
Frozen plug, and it is suitble to returning containing solid oils or oil-containing solid phase solvent extraction for the resource recyclings such as the extensive dregs of fat and oil sludge and sand
Receive processing unit.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: one kind is molten containing solid oils or oil-containing solid phase
Agent extraction and recovery processing unit, the device include extraction centrifugal unit, sedimentation unit, flash evaporation unit, spray drying unit；It is described
Extraction centrifugal unit for solid oils will to be contained or oil-containing solid phase extracts, obtain centrifugal clear liquid and centrifugation residue；Described
Sedimentation unit be connected to extraction centrifugal unit, in the centrifugal clear liquid that will obtain solid removal, at the top of acquisition liquid and
Bottom liquid；The flash evaporation unit is connected to sedimentation unit, to by the top liquid of acquisition carry out distillation obtain oil or pitch with
And solvent, it recycles after solvent recovery heat；The spray drying unit is connected to, with extraction centrifugal unit will obtain
Centrifugation residue carry out solvent recovery, obtain solvent and solid powder.
Extraction centrifugal unit of the present invention includes extractor, and the extractor is with solvent input channel and containing solid oil
Class or oil-containing solid phase input channel are connected, the other end of the solvent input channel is connected to solvent tank, containing solid oils or
The other end of oil-containing solid phase input channel is connected to feedstock storage unit；The extractor is equipped with output channel, efferent duct
The other end in road is connected with centrifuge；It is connected with the Clear liquid tank for holding centrifugal clear liquid on the centrifuge by pipeline respectively
With the residue tank for holding centrifugation residue (residue tank is connect by pipeline with spray drying unit).
Sedimentation unit of the present invention includes settlement separator, the feed end of the settlement separator by pipeline with
Clear liquid tank is connected；The discharge end of settlement separator includes top liquid discharge end and bottom liquid discharge end, and the top liquid goes out
Material end is connected to by pipeline with flash evaporation unit, and the bottom liquid discharge end passes through the solvent input pipe of circulating line and extractor
Road is connected.
Flash evaporation unit of the present invention includes top liquid heating furnace, atmospheric tower and vacuum tower；The top liquid heating furnace is logical
Piping is connected with liquid discharge end at the top of settlement separator, and the output end of the top liquid heating furnace passes through pipeline and atmospheric tower
It is connected；The atmospheric tower tower bottom is connected by circulating line with the feed end of top liquid heating furnace, the atmospheric tower
Top is connected to by pipeline with solvent tank, and the circulating line of the atmospheric tower is equipped with the pipeline being connected to vacuum tower, described
The bottom of vacuum tower be equipped with output of products pipeline, output of products pipeline is connected with asphalt tank；The upper end of the vacuum tower
Equipped with output channel, the output channel is connected to solvent tank.
Spray drying unit of the present invention includes centrifugation residue tank, and the output end of the centrifugation residue tank passes through pipe
Road is connected to residue heating furnace, and the residue heating furnace is equipped with output channel, the other end of output channel and spraying flash distillation
Drying tower is connected；The spraying expansion drying tower bottom output end is successively arranged lock hopper, feed bin, powder cooler, described
Spraying flash evaporation drying tower top be equipped with the pipeline that be connected to scrubbing tower, the bottom of the scrubbing tower equipped with circulating line, follow
The other end in endless tube road is connected to scrubbing tower, and the top of the scrubbing tower is equipped with output channel, output channel with vacuumizing and is
System is connected to solvent recovery tank, and the gas phase pipeline being connected to lock hopper is additionally provided on output channel.
The present invention above-mentioned contain oils or oil-containing solid phase solvent extraction recycling and processing device admittedly further include formed product unit,
The formed product unit includes asphalt moulding pond, is communicated with circulating line, circulation pipe on the asphalt moulding pond
Road is equipped with molding pool circulating pump and cooling tower；Asphalt moulding pond be equipped with feed pipe, feed pipe end
Equipped with being additionally provided with falling film cooler on asphalt moulding head, feed pipe, and the other end of feed pipe is connected to asphalt tank, falling liquid film
Steam water cooler is also connected on cooler；Conveyer is undertaken below the asphalt moulding head, conveyer is located at molding water
In pond, discharge end extends discharge bay.
It is extracted back the present invention also provides a kind of using containing solid oils or oil-containing solid phase solvent extraction recycling and processing device
The method for receiving processing, step include:
(1) solvent is blended in proportion containing solid oils or oil-containing solid phase, send to extractor and oil product in the dregs of fat or pitch are carried out
Extraction, oil product and pitch enter in solvent phase；Extract liquor in extractor is delivered to centrifuge and is centrifuged to obtain centrifugal clear liquid
With centrifugation residue；
(2) it is sent after centrifugal clear liquid heating to settlement separator and carries out sedimentation separation acquisition top liquid, bottom liquid and intermediate fluid；
The solid content of top liquid is down to≤0.2% by settlement separator, and the solid content of intermediate fluid is down to≤0.5%, the top after sedimentation
Liquid and intermediate fluid are sent to flash evaporation unit；
(3) contain a large amount of solvent in top liquid and intermediate fluid, solvent need to be steamed twice by normal pressure, decompression, obtained
To product oil or asphaltic products, the solvent recovered heat steamed is simultaneously recycled (i.e. from Atmospheric Tower and vacuum tower after cooling down
Jacking enters solvent tank)；
(4) centrifugation residue is exchanged heat, after heating, send to spray drying tower, residue is atomized into drop, flashes off solvent,
Solid phase in residue falls into tower bottom at powder；Lock hopper is arranged in tower bottom, and by pressure handover operation, timing excludes powder, high temperature powder
Material, which is sent to cooler, further to be cooled down, and is sent after cooling to filler bin and is stored；The gas phase of the tower top of the spray drying tower passes through
Pipeline enter in scrubbing tower washed, the circulating line that liquid is arranged from scrubbing tower tower bottom carries out scrubbing tower again and is followed
Ring, gaseous state export condensing recovery from washing column overhead.
Solvent described in step (1) is that the solvent that can dissolve oil component in oil-containing solid phase can according to similar compatibility principle
To be extracted using solvent naphtha, solvent naphtha source is the particular components in petroleum or coal base oil.
Extract liquor of the present invention enters 20~130 DEG C of temperature of centrifuge；Extraction residue delivery temperature 20~250
DEG C, 0.1~3MPa of discharge pressure；
Temperature in settlement separator of the present invention is 20~250 DEG C, the sedimentation time 0~240 hour, when specific
Between the specific time determined according to the property of solid particle；
The outlet temperature of top liquid heating furnace in flash evaporation unit of the present invention is 100~400 DEG C, outlet pressure 0
~1MPa；The operation temperature of atmospheric tower is 100~400 DEG C, and operating pressure is 0~600KPa (G)；The operation temperature of vacuum tower is
100~400 DEG C, operating pressure is 0~70KPa (A)；
The outlet temperature of residue heating furnace in spray drying unit of the present invention is 100~400 DEG C, outlet pressure
For 0~1MPa；The operation temperature of spray drying tower is 100~400 DEG C, and operating pressure is 0~600KPa (G)；The behaviour of scrubbing tower
Making temperature is 100~400 DEG C, and operating pressure is 0~600KPa (G)；
Formed product unit of the invention: forming temperature is higher than 30~50 DEG C of pitch medium softening point, can for 100~
220℃。
Technological principle of the invention: (1) liquid dregs of fat blending solvent is extracted；The solid dregs of fat first can smash or blend molten
Agent heats dissolution extraction；(2) most of solid is deviate from using centrifuge through the dregs of fat extracted, obtains centrifugal clear liquid and is centrifuged residual
Slag；(3) centrifugal clear liquid further removes solid using sedimentation method, is then sent to flash system and steams solvent, in flash evaporation unit
Bottom product be the dregs of fat in mink cell focus or pitch；(4) centrifugation residue is sent to spray drying unit, using spraying expansion drying
Technique recycling design, bottom product are dry mash；(5) flash system product is mink cell focus or pitch, according to its property and market
Demand may be molded to solid product.
Equipment of the invention include heat exchanger containing rheid, centrifuge, delivery pump containing rheid, be centrifuged residue delivery pump,
Settlement separator, centrifugal clear liquid heating furnace, centrifugation residue heating furnace, high speed gasification flash distillation regulating valve, falling film cooler, product at
Type head, spray drying tower, oil gas scrubbing tower, powder cooler etc..
(1) heat exchanger containing rheid requires heat exchanger containing rheid to have the characteristics that wear-resistant, anti-blocking, easy cleaning.Heat exchange
Vertical, horizontal fixed tube sheet, U-tube or movable tube sheets heat exchanger can be used in device.At position easy to wear, setting interior lining panel prevents from wearing,
It reduces dead zone position to the greatest extent to avoid blocking, flow setting requires heat exchanger that can rinse each position.
(2) Horizontal helical type centrifuge, disc centrifuge or cyclone etc. can be used in centrifuge；
(3) one kind of reciprocating pump, plunger pump or dedicated Gao Hangu centrifugal pump can be used containing rheid, centrifugation residue delivery pump
Or it is several.Centrifugation residue viscosity is up to 10000cP~20000cP, high to pump requirements of type selecting.
(4) outlet port is arranged in settlement separator top, intermediate, bottom, and different brackets quality can be obtained according to withdrawn position
Product.Settlement separator bottom setting disturbance facility, prevents the droning accumulation of solid from leading to not convey.
(5) centrifugal clear liquid heating furnace, centrifugation residue heating furnace type of furnace helix tube type heating furnace or racetrack large radius boiler tube
Formula heating furnace.
(6) flash evaporation unit outlet of still is using the wear-resistant regulating valve that gasifies at a high speed, build-up wear-resistant coating in regulating valve.Regulating valve
Inlet outlet pressure differential is big, adjusts valve outlet and sharply flashes.
(7) formed product uses falling film cooler, and moulded head uses extrusion molding head.Pass through falling film cooler top pressure
Control extruded velocity.
(8) spray drying tower uses adjoining pipe, semicanal or electric heating, and heat tracing medium is conduction oil, and operation temperature is about
300~380 DEG C, it can prevent material from sticking wall；The spraying flash evaporation drying tower spray head uses one or more groups of spray heads, spray head pressure drop 0
~1MPa meets sufficiently atomization and requires.Nozzle uses special construction and wear-resistant material, mitigates abrasion, extends the operation cycle.
(9) special construction is set inside scrubbing tower, venturi, cyclone, column plate, filler and other special knots can be used
Structure, operating pressure are 10~600kPa (A).
(10) powder cooler is oar blade type cooler or disc type cooler.
The present invention is relative to conventional incineration, pyrolysis, washing or extraction process comparatively, having the advantages that
(1) present invention is the first set large scale processing technique complete set technology such as the dregs of fat and oil sludge and sand, technologically advanced reliable；
(2) resources such as the dregs of fat and oil sludge and sand are made full use of, oil product extracts, and powdery is made in the solid particle in the dregs of fat
Class coal fuel eats dry bleed to resource.Meanwhile the present invention is also used for the solid processing of oily waste water, solves environmental issue, belongs to environmental protection
Technique does not generate new waste.
(3) solid contents such as the dregs of fat and oil sludge and sand are higher, easily solidification, easily blocking, easy coking, handle very difficult；Pass through this
Invented technology method and apparatus Lectotype Optimization, can solve the above problems.
(4) present invention process technology has advanced, perspective, economy, operability, and is environmentally friendly skill
Art.
(5) present invention process technology extremely has economic benefit, calculates as follows: raw material dregs of fat oil-containing product pitch 55% is left
The right side, price is by 500 yuan/ton of calculating；Powder product by 500 yuan/ton calculating, asphaltic products by 2500 yuan/ton calculating, to 50 tons/
When dregs of fat extraction equipment for, invest 2.5 hundred million RMB, deduct consumption, depreciation, loan interest etc., profit 2.1 can be created within 1 year
Hundred million RMB.
(6) adaptation range of raw material that the present invention is handled include the coal liquefaction dregs of fat, kerosene refine oil altogether slag, it is heavy oil floating bed or
Slurry bed system hydrogenated oil slag, oilfield exploitation greasy filth, refinery's greasy filth, ship orlop greasy filth, natural oil-sand or oil field, plant catalytic slurry oil
Deng.The present invention is suitable at all Oil Recoveries and solid slag containing solid oils or oil-containing solid phase such as the dregs of fat, greasy filth, oil-sand, oil field
Reason is mainly used for extracting oil product or pitch etc. in oil-containing solid phase, and carries out processing to the solid phase of de-oiling and produce the combustion of class coal
Material.Solids content limits are 0%~95% in the media such as the dregs of fat, greasy filth or oil-sand.If solid content is excessively high in medium, to oil product
Recycling may not have economic benefit.If raw material is solid phase, it can first crush and solvent is used to dissolve afterwards；Raw material is liquid phase, is directly blended
Solvent extraction.Solid grain size distribution is 2um~3mm.
Detailed description of the invention
Fig. 1 is the flow chart of the embodiment of the present invention 1.
Fig. 2 is the flow chart of the embodiment of the present invention 2.
In figure: 1 pump for residue of oil (or being known as containing solid oils or oil-containing solid phase pump), 2 steam generators, 3 dregs of fat coolers, 4
Extractor, 5 extraction pumps, 6 centrifuges, 7 Clear liquid tanks, 8 clear liquid pumps, 9 solvent pumps, 10 solvent tanks, 11 clear liquid heat exchangers, 12 sedimentations point
Often from device, 13 bottom liquid pumps, 14 top liquid pumps, 15 Chang Dingqi condensers (Atmospheric Tower gas phase condenser), 16 top liquid heating furnaces, 17
Press tower, 18 normal pressure column bottoms pumps, 19 vacuum towers, 20 VACUUM TOWER BOTTOMs pump, 21 centrifugation residue tanks, 22 centrifugation residue pumps, the heating of 23 residues
Device, 24 residue heating furnaces, 25 drying towers, 26 lock hoppers, 27 feed bins, 28 powder coolers, 29 scrubbing towers, 30 scrubber overheads are cooling
Device, 31 washing column bottoms pumps, 32 asphalt tanks, 33 bitumenpumps, 34 steam generators, 35 coolers, 36 steam water coolers, 37 pitches at
Type head, 38 conveyers, 39 molding pool circulating pumps, 40 cooling towers, 41 vacuum system coolers, 42. is solid containing solid oils or oil-containing
Mutually pump head tank.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
The present embodiments relate to all parts arrived and equipment, do not do specified otherwise, be chemical field it is conventional or
Person is commercially available, the equipment for being able to satisfy requirement of the present invention.
Example one
One kind of the present embodiment contains solid oils or oil-containing solid phase solvent extraction recycling and processing device, the device as shown in Figure 1:
Including extracting centrifugal unit, sedimentation unit, flash evaporation unit is spray-dried unit；Described extraction centrifugal unit is solid for that will contain
Oils or oil-containing solid phase are extracted, and centrifugal clear liquid and centrifugation residue are obtained；The sedimentation unit and extraction centrifugal unit connects
It is logical, in the centrifugal clear liquid that will obtain solid removal, obtain at the top of liquid and bottom liquid；The flash evaporation unit and heavy
The connection of drop unit obtains oil or pitch and solvent the top liquid of acquisition is carried out distillation, recycles after solvent recovery heat
It utilizes；The spray drying unit is connected to extraction centrifugal unit, the centrifugation residue will obtain carries out solvent recovery, is obtained
To solvent and solid powder.
Specifically, extraction centrifugal unit of the present invention includes extractor 4, the extractor and solvent input channel
It is connected with containing solid oils or oil-containing solid phase input channel, the other end of the solvent input channel is connected to solvent tank 10,
The other end containing solid oils or oil-containing solid phase input channel is connected to feedstock storage unit；The raw materials such as the dregs of fat pass through the dregs of fat
Pump (or being known as containing solid oils or oil-containing solid phase pump) provides power and is introduced into steam generator 2, and the efferent duct of solvent tank 10
On road be provided with solvent pump 9 solvent is separately input on feedstock pipeline and the subsequent output channel of steam generator 2, one
Play that (and the bottom liquid in settlement separator 12 has part to pass through bottom liquid by entering in extractor 4 after dregs of fat cooler 3
Pump 13 and pipeline are flowed back into extractor and are used as extractant, and reflux inlet is in the front end of dregs of fat cooler 3)；Described
Extractor 4 is equipped with output channel, the other end of output channel is connected and when media flow dynamics is inadequate with centrifuge 6
Extract liquor is input in centrifuge by extraction pump 5；It is connected with respectively by pipeline on the centrifuge and holds centrifugation clearly
The Clear liquid tank 7 of liquid and the residue tank 21 for holding centrifugation residue (residue tank is connect by pipeline with spray drying unit).
Specifically, sedimentation unit of the present invention includes settlement separator 12, the feed end of the settlement separator
It is connected by pipeline with Clear liquid tank 7, clear liquid pump 8 is set on pipeline；The discharge end of settlement separator includes top liquid discharge end
With bottom liquid discharge end, the top liquid discharge end is connected to by pipeline with flash evaporation unit, and the bottom liquid discharge end is logical
Circulating line is crossed to be connected with the solvent input channel of extractor 4.
Specifically, flash evaporation unit of the present invention includes top liquid heating furnace 16, atmospheric tower 17 and vacuum tower 19；Described
Top liquid heating furnace 16 is connected by pipeline with liquid discharge end at the top of settlement separator, and the output end of the top liquid heating furnace is logical
Piping is connected with atmospheric tower 17；The atmospheric tower tower bottom by the top liquid heating furnace 16 of circulating line and atmospheric tower into
Material end is connected, circulating line is equipped with normal pressure column bottoms pump 18, and the top of the atmospheric tower is connected by pipeline and solvent tank 10
Logical, the circulating line of the atmospheric tower is equipped with the pipeline being connected to vacuum tower, and the bottom of described vacuum tower is equipped with product
Output channel, output of products pipeline are connected with asphalt tank 32, and output of products pipeline is equipped with vacuum tower ground pump；The decompression
The upper end of tower is equipped with output channel, and the output channel is connected to solvent tank 10 and is additionally provided with vacuum system on output channel
Cooler 41 (can be used for connecing vacuum system, control the pressure in flash evaporation unit).
Specifically, spray drying unit of the present invention include centrifugation residue tank 21, the centrifugation residue tank it is defeated
Outlet is connected to by pipeline with residue heating furnace 24, the residue heating furnace equipped with output channel, output channel it is another
End is connected with spraying flash evaporation drying tower 25；The spraying expansion drying tower bottom output end is successively arranged lock hopper 26, feed bin
27, powder cooler 28, and each other be equipped with valve carry out folding control, the spraying flash evaporation drying tower top be equipped with
The pipeline that scrubbing tower 29 is connected to, the bottom of the scrubbing tower are equipped with circulating line, the other end of circulating line and scrubbing tower and connect
Logical, circulating line is equipped with scrubbing tower ground pump 31；The top of the scrubbing tower is equipped with output channel, output channel and vacuumizes
System (pressure in control spray drying unit) is connected to solvent recovery tank, and connection end is equipped with scrubber overhead cooler 30, and
The gas phase pipeline being connected to lock hopper is additionally provided on output channel.
Specifically, the present invention it is above-mentioned containing solid oils or oil-containing solid phase solvent extraction recycling and processing device further include product at
Type unit, the formed product unit include asphalt moulding pond 42, are communicated with circulation pipe on the asphalt moulding pond
Road, circulating line are equipped with molding pool circulating pump 39 and cooling tower 40；Asphalt moulding pond be equipped with feed pipe, into
The end of pipe material is equipped with asphalt moulding head 37, is additionally provided with falling film cooler on feed pipe, and the other end of feed pipe with
Asphalt tank 32 is connected to, and is also connected with steam water cooler 36 on falling film cooler；Conveying is undertaken below the asphalt moulding head
Machine 38, conveyer are located in molding pond, and discharge end extends discharge bay.
Technological principle: (1) liquid dregs of fat blending solvent is extracted；The solid dregs of fat can be smashed first or to blend solvent heating molten
Solution；(2) most of solid is deviate from using centrifuge through the dregs of fat extracted, obtains centrifugal clear liquid and centrifugation residue；(3) it is centrifuged
Clear liquid is further backing out solid using sedimentation method, send to flash system and steams solvent, and bottom product is the mink cell focus in the dregs of fat
Or pitch；(4) centrifugation residue is sent to spray drying unit, and using spraying expansion drying technique recycling design, bottom product is dry
Powder；(5) flash system product may be molded to solid product according to its property and the market demand for mink cell focus or pitch.
Specific raw material is a kind of coal base oil slag extraction and recovery in certain coal plant, comprising the following steps:
(1) coal base oil slag blends solvent in proportion, send after recovered heat to extractor, molten under the stirring of blender
Agent extracts oil product in the dregs of fat or pitch, and oil product and pitch enter in solvent phase；Extract liquor in extractor is pumped through slurries
It is delivered to centrifuge to be centrifuged, removes most solid particles in extract liquor, obtain centrifugal clear liquid and be centrifuged residual
Slag.
(2) oil product in the dregs of fat or pitch about 95% enter centrifugal clear liquid, but still consolidate containing certain in centrifugal clear liquid
Body particle (content≤5%) needs further to remove the solid in centrifugal clear liquid to obtain high-quality oil product or pitch
Grain.It send after centrifugal clear liquid heating to settlement separator, according to experimental result, determines the sedimentation time.Settlement separator uses more
The more tanks handover operations in turn such as tank handover operation, according to charging, sedimentation, goes out top liquid, and bottom liquid returns, can be by top liquid
Solid content is down to≤0.2%.Top liquid after sedimentation is sent to distillation unit.It is required according to products configuration, during settling tank can be added
Between liquid, be not described in detail in this process.
(3) contain a large amount of solvent in the liquid of top, solvent need to be steamed twice by normal pressure, decompression, obtain product oil
Or asphaltic products.It is recycled after the solvent recovered heat steamed.Due to containing solid phase in medium, it is easy to coking, to distillation
It is more demanding.
(4) residue of centrifuge separation, solid content are up to 40~80%, need to recycle solvent therein.In order to
The residue is handled, using spraying expansion drying technique, i.e., centrifugation residue exchanges heat, after heating, send to spray drying tower, by residue
It is atomized into drop, flashes off solvent, the solid phase in residue falls into tower bottom at powder.Lock hopper is arranged in tower bottom, is switched by pressure and is grasped
Make, timing excludes powder, and high temperature powder send to cooler and further cools down, and is sent after cooling to filler bin and is stored.
After processing, the rate of recovery of oil or pitch is >=93% (w) to the dregs of fat, dissolvent residual rate≤3% (w).Solid powder
All recycling, solid powder dissolvent residual rate≤3% (w).The proportion of goods damageds≤3% (w) of cake treatment apparatus whole solvent.
Example two
As shown in Figure 2: one kind of the present embodiment contains solid oils or oil-containing solid phase solvent extraction recycling and processing device, the device
Including extracting centrifugal unit, sedimentation unit, flash evaporation unit is spray-dried unit；Described extraction centrifugal unit is solid for that will contain
Oils or oil-containing solid phase are extracted, and centrifugal clear liquid and centrifugation residue are obtained；The sedimentation unit and extraction centrifugal unit connects
It is logical, in the centrifugal clear liquid that will obtain solid removal, obtain at the top of liquid and bottom liquid；The flash evaporation unit and heavy
The connection of drop unit obtains oil or pitch and solvent the top liquid of acquisition is carried out distillation, recycles after solvent recovery heat
It utilizes；The spray drying unit is connected to extraction centrifugal unit, the centrifugation residue will obtain carries out solvent recovery, is obtained
To solvent and solid powder.The device of the embodiment does not include formed product unit, furthermore containing solid oils or the setting of oil-containing solid phase
One head tank 42 is connected to that (raw material herein passes through head tank 42 and enters extractor, and extracts by pipeline with extractor 4
Solvent then from the output channel of solvent tank 10, is input in the feed pipe of extractor by the power of solvent pump 9 and is entered
Into extractor 4, raw material is input in extractor with extractant difference pipeline, and the bottom liquid in settlement separator 12 has portion
Divide to flow back into extractor by bottom liquid pump 13 and pipeline and be used as extractant), other structures are the same as embodiment 1.
Specific raw material is certain chemical plant solid-state oil sludge and sand extraction and recovery treatment process, comprising the following steps:
(1) solid-state oil sludge and sand mine is sent using screw conveyor to extractor, while in extractor after crusher crushes
Solvent is filled into, heating is heated to reflux using extractor bottom liquid, under the stirring of extraction jar agitator, solvent is to oil product in oil sludge and sand
Or pitch is extracted, oil product and pitch enter in solvent phase；Extract liquor in extractor is delivered to sleeping spiral shell through slurries pump and is centrifuged
Machine is centrifuged, and most solid particles in extract liquor are removed, and obtains centrifugal clear liquid and centrifugation residue.
(2) oil product in oil sludge and sand or pitch about 95% enter centrifugal clear liquid, but still contain centainly in centrifugal clear liquid
Solid particle (content≤5%) needs further to remove the solid in centrifugal clear liquid to obtain high-quality oil product or pitch
Grain.It send after centrifugal clear liquid heating to settlement separator, according to experimental result, determines the sedimentation time.Settlement separator uses more
Tank handover operation according to charging, sedimentation, goes out the more tanks such as top liquid, bottom liquid return handover operation in turn, can be by top liquid
Solid content is down to≤0.2%.Top liquid after sedimentation is sent to distillation unit.
(3) contain a large amount of solvent in the liquid of top, need to carry out steaming solvent, obtain product oil or asphaltic products.It produces
Product oil or pitch are sent to asphalt tank, liquid asphalt entrucking.Solvent tank reuse is recycled to after the solvent recovered heat steamed.Due to
Contain solid phase in medium, is easy to block and coking, equipment and pipeline need special consideration.
(4) centrifugation residue solid content is up to 40~80%, to increase economic efficiency, needs to return solvent therein
It receives.In order to handle the residue, using spraying expansion drying technique, i.e., after being centrifuged residue heating, send to drying tower, by residue mist
It is melted into drop, flashes off solvent, the solid phase in residue falls into tower bottom at powder.Lock hopper is arranged in tower bottom, by pressure handover operation,
Timing excludes powder, and high temperature powder send to cooler and further cools down, and is sent after cooling to filler bin storage or entrucking.
After processing, the rate of recovery of oil or pitch is >=93% (w) to the dregs of fat, dissolvent residual rate≤3% (w).Solid powder
All recycling, solid powder dissolvent residual rate≤3% (w).The proportion of goods damageds≤3% (w) of cake treatment apparatus whole solvent.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. one kind is containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: the device include extraction from
Heart unit, sedimentation unit, flash evaporation unit are spray-dried unit；Described extraction centrifugal unit will be for that will contain solid oils or oil-containing
Solid phase is extracted, and centrifugal clear liquid and centrifugation residue are obtained；The sedimentation unit is connected to, with extraction centrifugal unit will obtain
The solid removal in centrifugal clear liquid, acquisition top liquid and the bottom liquid obtained；The flash evaporation unit is connected to sedimentation unit,
Oil or pitch and solvent are obtained the top liquid of acquisition is carried out distillation, is recycled after solvent recovery heat；Described
Spray drying unit with extract centrifugal unit be connected to, to will obtain centrifugation residue progress solvent recovery, obtain solvent with admittedly
State powder.
2. according to claim 1 containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: institute
The extraction centrifugal unit stated includes extractor, and the extractor is inputted with solvent input channel and containing solid oils or oil-containing solid phase
Pipeline is connected, and the other end of the solvent input channel is connected to, containing solid oils or oil-containing solid phase input channel with solvent tank
The other end be connected to feedstock storage unit；The extractor is equipped with output channel, the other end of output channel and centrifugation
Machine is connected；It is connected with the Clear liquid tank for holding centrifugal clear liquid on the centrifuge by pipeline respectively and holds centrifugation residue
Residue tank.
3. according to claim 1 containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: institute
The sedimentation unit stated includes settlement separator, and the feed end of the settlement separator is connected by pipeline with Clear liquid tank；It is heavy
The discharge end of drop separator includes top liquid discharge end and bottom liquid discharge end, and the top liquid discharge end is by pipeline and dodges
Unit connection is steamed, the bottom liquid discharge end is connected by circulating line with the solvent input channel of extractor.
4. according to claim 1 containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: institute
The flash evaporation unit stated includes top liquid heating furnace, atmospheric tower and vacuum tower；The top liquid heating furnace passes through pipeline and sedimentation separation
Liquid discharge end is connected at the top of device, and the output end of the top liquid heating furnace is connected by pipeline with atmospheric tower；Described is normal
Pressure tower tower bottom is connected by circulating line with the feed end for pushing up liquid heating furnace, the top of the atmospheric tower pass through pipeline with it is molten
The connection of agent tank, the circulating line of the atmospheric tower are equipped with the pipeline being connected to vacuum tower, and the bottom of described vacuum tower is set
There is output of products pipeline, output of products pipeline is connected with asphalt tank；The upper end of the vacuum tower is equipped with output channel, described
Output channel be connected to solvent tank.
5. according to claim 1 containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: institute
The spray drying unit stated includes centrifugation residue tank, and the output end of the centrifugation residue tank is connected by pipeline and residue heating furnace
Logical, the residue heating furnace is equipped with output channel, the other end of output channel is connected with spraying flash evaporation drying tower；It is described
Spraying expansion drying tower bottom output end be successively arranged lock hopper, feed bin, powder cooler, the spraying expansion drying tower top
End is equipped with the pipeline that be connected to scrubbing tower, the bottom of the scrubbing tower equipped with circulating line, circulating line the other end with wash
Tower connection is washed, the top of the scrubbing tower is equipped with output channel, output channel is connected to pumped vacuum systems and solvent recovery tank,
And the gas phase pipeline being connected to lock hopper is additionally provided on output channel.
6. according to claim 1 containing solid oils or oil-containing solid phase solvent extraction recycling and processing device, it is characterised in that: also
Including formed product unit, the formed product unit includes asphalt moulding pond, is connected on the asphalt moulding pond
There are circulating line, circulating line to be equipped with molding pool circulating pump and cooling tower；Asphalt moulding pond be equipped with feed pipe
Road, feed pipe end be equipped with asphalt moulding head, be additionally provided with falling film cooler, and the other end of feed pipe on feed pipe
It is connected to asphalt tank, steam water cooler is also connected on falling film cooler；Undertaken below the described asphalt moulding head conveyer,
Conveyer is located in molding pond, and discharge end extends discharge bay.
7. it is a kind of using the method for carrying out extraction and recovery processing containing solid oils or oil-containing solid phase solvent extraction recycling and processing device,
Be characterized in that: step includes:
(1) blend solvent in proportion containing solid oils or oil-containing solid phase, send after recovered heat to extractor to oil product in the dregs of fat or
Pitch is extracted, and oil product and pitch enter in solvent phase；Extract liquor in extractor is delivered to centrifuge and is centrifuged to obtain
Centrifugal clear liquid and centrifugation residue；
(2) it is sent after centrifugal clear liquid heating to settlement separator and carries out sedimentation separation acquisition top liquid, bottom liquid and intermediate fluid；Sedimentation
The solid content of top liquid is down to≤0.2% by separator, and the solid content of intermediate fluid is down to≤0.5%, the top liquid after sedimentation and
Intermediate fluid is sent to flash evaporation unit；
(3) contain a large amount of solvent in top liquid and intermediate fluid, solvent need to be steamed twice by normal pressure, decompression, be produced
Product oil or asphaltic products, the solvent recovered heat steamed simultaneously recycle after cooling down；
(4) centrifugation residue is exchanged heat, after heating, send to spray drying tower, residue is atomized into drop, flashes off solvent, residue
In solid phase fall into tower bottom at powder；Lock hopper is arranged in tower bottom, and by pressure handover operation, timing excludes powder, and high temperature powder is sent
It is further cooled down to cooler, is sent after cooling to filler bin and stored；The gas phase of the tower top of the spray drying tower passes through pipeline
Enter in scrubbing tower washed, the circulating line that liquid is arranged from scrubbing tower tower bottom carries out scrubbing tower again and is recycled,
Gaseous state exports condensing recovery from washing column overhead.
8. according to claim 7 extract back using containing solid oils or oil-containing solid phase solvent extraction recycling and processing device
The method for receiving processing, it is characterised in that: the extract liquor enters 20~130 DEG C of temperature of centrifuge；Extraction residue conveying temperature
20~250 DEG C of degree, 0.1~3MPa of discharge pressure；Temperature in the drop separator is 20~250 DEG C, the sedimentation time 0~
240 hours, the specific time determined the specific time according to the property of solid particle.
9. according to claim 7 extract back using containing solid oils or oil-containing solid phase solvent extraction recycling and processing device
The method for receiving processing, it is characterised in that: the outlet temperature of the top liquid heating furnace in the flash evaporation unit is 100~400 DEG C, out
Mouth pressure is 0~1MPa；The operation temperature of atmospheric tower is 100~400 DEG C, and operating pressure is 0~600KPa (G)；Vacuum tower
Operation temperature is 100~400 DEG C, and operating pressure is 0~70KPa (A).
10. according to claim 7 extracted using containing solid oils or oil-containing solid phase solvent extraction recycling and processing device
The method of recovery processing, it is characterised in that: the outlet temperature of the residue heating furnace in the described spray drying unit is 100~
400 DEG C, outlet pressure is 0~1MPa；The operation temperature of spray drying tower is 100~400 DEG C, and operating pressure is 0~600KPa
(G)；The operation temperature of scrubbing tower is 100~400 DEG C, and operating pressure is 0~600KPa (G)；Forming temperature softens higher than medium
30~50 DEG C of point is 100~220 DEG C.
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| CN111170539A (en) * | 2019-12-30 | 2020-05-19 | 克拉玛依市奥泽工贸有限责任公司 | On-site treatment method of drilling waste liquid |
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| CN115814458A (en) * | 2022-11-11 | 2023-03-21 | 北京化工大学 | Enhanced extraction system and method for recovering edible oil from edible oil residues |
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Effective date of registration: 20201124 Address after: 9 / F, 10 / F, 16 ande Road, Dongcheng District, Beijing 100011 Applicant after: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. Applicant after: SHANGHAI RESEARCH INSTITUTE OF CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Corp.,Ltd. Applicant after: ORDOS COAL TO LIQUID BRANCH, CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. Address before: 8, building 435, building E, creative Plaza, 315042 Jiangdong North Road, Yinzhou District, Zhejiang, Ningbo Applicant before: NINGBO RESEARCH & DESIGN INSTITUTE OF CHEMICAL INDUSTRY Co.,Ltd. Applicant before: ORDOS COAL TO LIQUID BRANCH, CHINA SHENHUA COAL TO LIQUID AND CHEMICAL Co.,Ltd. |
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