CN105833569A - Outer rotational flow limited flow channel membrane separator and method for demulsifying emulsion membrane through same - Google Patents

Outer rotational flow limited flow channel membrane separator and method for demulsifying emulsion membrane through same Download PDF

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Publication number
CN105833569A
CN105833569A CN201610269665.1A CN201610269665A CN105833569A CN 105833569 A CN105833569 A CN 105833569A CN 201610269665 A CN201610269665 A CN 201610269665A CN 105833569 A CN105833569 A CN 105833569A
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emulsion
pipe
membrane
membrane separator
breakdown
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CN201610269665.1A
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CN105833569B (en
Inventor
石秀敏
温春阳
单绍雷
杨永恒
王树江
张国馗
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Changchun University of Technology
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Changchun University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D17/00Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02Separation of non-miscible liquids
    • B01D17/04Breaking emulsions
    • B01D17/047Breaking emulsions with separation aids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06Tubular membrane modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration

Abstract

The invention discloses an outer rotational flow limited flow channel membrane separator and a method for demulsifying an emulsion membrane through the same, and belongs to the technical field of chemical technology and chemical equipment .The outer rotational flow limited flow channel membrane separator comprises a round pipe shell, an emulsion outlet, an internal water phase material liquid outlet, a membrane separation pipe, a limited flow channel rotational flow plate, a pressure measuring opening and a material inlet .A round pipe is a cylindrical hollow pipe .The emulsion outlet is horizontally arranged on the lower portion of the round pipe .The internal water phase material liquid outlet is arranged in the center of the bottom of the round pipe .The membrane separation pipe is arranged inside the round pipe and is concentric with the cross section circle of the round pipe .The limited flow channel rotational flow plate is spirally arranged on the outer side of the membrane separation pipe and the inner side of the round pipe along the outer side of the membrane separation pipe .The material inlet is horizontally arranged on the upper portion of the round pipe and is parallel to the emulsion outlet .Emulsion can be forced to do constant screw-pitch rotational motion, namely approximately constant-speed rotational motion between spiral plates, the emulsion runs in the state of initially entering the membrane separator, the running time is long, the demulsifying rate is high, and the outer rotational flow limited flow channel membrane separator can be developed to be applied in demulsifying practical production .

Description

Contour stealth current limliting road membrane separator and the method for emulsion liquid film breakdown of emulsion thereof
Technical field
The invention belongs to chemical technology and technical field of chemical, especially relate to a kind of contour stealth current limliting Road film is from the method for device emulsion liquid film breakdown of emulsion.
Background technology
Emulsion Liquid Membrane Separation Technique is a kind of effective ways reclaiming heavy metal ion from waste water, but emulsion Film breakdown of emulsion is that the heavy metal ion reclaimed from interior aqueous extraction and emulsion are from the new key utilized.Emulsion breaking Method have settled process, the way of distillation, plasma method, electric demulsification method, microwave irradiation, ultrasonic dehydration method, Centrifugal breakdown of emulsion method, electrolyte method, chemical demulsifier breakdown of emulsion method, biological demulsifying method, grinding emulsion breaking method, film divide From method etc..Settled process Processes and apparatus is fairly simple, but the breakdown of emulsion time is longer, the tank body containing emulsion is relatively big, More, emulsion usage amount is the biggest.Way of distillation energy consumption is higher, produces perseverance in immiscible second-component system During boiling mixture, it can not thoroughly be separated by the way of distillation.Plasma method power consumption is higher, cost of equipment is higher. Electric demulsification method requires high electric-field intensity, and electrisity consumption is big, and danger is the highest.In the demulsification of emulsions under microwave radiation method short time High temperature may be produced, uncontrollable to temperature, it is easily destroyed organic phase activity.Meanwhile, misoperation, micro- Health is easily caused certain impact by wave radiation, and cost is high, and energy consumption is big, and economic benefit is low.Ultrasonic dehydration Method cost is high, typically uses in laboratory, is rarely used in industrial process.Centrifugal breakdown of emulsion method processes emulsion quantity Little, it is difficult to when emulsion amount is big process, high to operation equipment requirement, operation limitation is bigger.Electrolyte method is broken Breast can change the character of surfactant to a certain extent.Chemical demulsification method is poor to applicability from the point of view of liquid film, Because liquid film to reuse, after adding demulsifier, during breast the most processed next time, emulsion just becomes the most unstable. Biological demulsifying method is the most difficult to the screening of the bacterial classification of microorganism, cell age, is the difficult point of biological demulsifying.Grind Breakdown of emulsion method is more suitable to floccule breakdown of emulsion, poor for applicability to emulsion liquid film.Filtration method be a kind of frequently with Simple breaking method, its shortcoming is that breakdown of emulsion is incomplete, it occur frequently that block when emulsion viscosity is big.Wherein Contour stealth membrane separating method than more efficient, also have scholar to study in detail, but its shortcoming be separator fortune The row time is short, and fenestra easily blocks.Research finds, utilizes contour stealth membrane separating method breakdown of emulsion relative efficiency, Its operation has certain technical problem, and cleaning frequency is higher, inefficient.Reason is when emulsion passes through outward turning During stream membrane separator, just start emulsion spirally movement locus and run, along with there being interior aqueous phase to separate, emulsion The resistance moved of spinning strengthens, again due to emulsion self gravitation factor, and emulsion motion rail in separator Mark generation great variety, emulsion flow velocity declines, between emulsion, emulsion and membrane tube wall collision opportunity and frictional force Reduce, cause contour stealth separator breakdown of emulsion efficiency quickly to reduce, and divide along with the length of UF membrane pipe increases Decline to become apparent from from efficiency.Simultaneously as emulsion movement locus and movement velocity change, emulsion Can cause part film hole plug, and increase gambling plug with UF membrane pipe and increase the weight of, device properly functioning time becomes Shorter.Therefore need badly in the middle of prior art and want a kind of novel technical scheme to solve this problem.
Summary of the invention
The technical problem to be solved is: provides a kind of contour stealth current limliting road membrane separator and is used for The method of emulsion liquid film breakdown of emulsion, forces emulsion to make uniform pitch, i.e. in the rotation of each spiral segment intercropping almost constant speed Transhipment is dynamic, makes emulsion to initially enter the state motion of membrane separator, makes the separation process duration longer, And can develop in the actual production being applied to breakdown of emulsion.
Contour stealth current limliting road membrane separator, is characterized in that: include pipe shell, emulsion outlet, interior aqueous phase material Liquid outlet, UF membrane pipe, current limliting road spiral board, pressure tap and material inlet, described pipe shell is circle Cylindricality hollow pipe;Described emulsion outlet is horizontally set on the bottom of pipe shell;Described interior aqueous phase liquid exports It is arranged on the bottom centre position of pipe shell;Described UF membrane pipe is arranged on the inside of pipe shell, and with The cross circular section concentric of pipe shell is arranged;Described current limliting road spiral board along the outside of UF membrane pipe, in Helical form is arranged on the outside of UF membrane pipe, the inner side of pipe shell;Described pressure tap is arranged on pipe shell Top;Described material inlet is horizontally set on the top of pipe shell, welds with pipe shell tangentially, And parallel with emulsion outlet.
Contour stealth current limliting road membrane separator, for the method for emulsion liquid film breakdown of emulsion, is characterized in that: application is provided with The contour stealth pipe type filtering device of contour stealth current limliting road membrane separator, including anti-cleaning fluid tank, treats breakdown of emulsion raw material Tank, feed liquid circulating pump, bottle,suction, feed liquid bottle, flowmeter, membrane separator, vacuum breaker, surge flask, Milk tank and vavuum pump after breakdown of emulsion, described anti-cleaning fluid tank and treat that breakdown of emulsion head tank is followed by pipeline and feed liquid Ring pump is connected with membrane separator, and is provided with flowmeter on pipeline;The pressure tap of described membrane separator and feed liquid Bottle connects, and the emulsion outlet of membrane separator is connected with milk tank after breakdown of emulsion;Described feed liquid bottle passes through pipeline and takes out Filter flask connects;Being provided with conduit on described bottle,suction, the side of conduit is arranged on inside surge flask;Described slow Rush the vavuum pump being provided with vacuum breaker on bottle and being connected by conduit;
The method applying described contour stealth pipe type filtering device to carry out emulsion liquid film breakdown of emulsion, comprises the following steps,
Step one, check that pipeline is unimpeded and air-tightness, to anti-cleaning fluid tank with treat breakdown of emulsion head tank feeds;
Step 2, unlatching feed liquid circulating pump and vavuum pump, throttle gauge, makes the stability of flow of emulsion exist 30ml/min~80ml/min;
Step 3, treat the effect through feed liquid circulating pump of the breakdown of emulsion liquid, through the thing of contour stealth current limliting road membrane separator Material import enters inside membrane separator, and spins along current limliting road spiral board in membrane separator and move;Liquid pearl Between and the wall of liquid pearl and UF membrane pipe mutually collide and rub, damaged to emulsion liquid film;
Step 4, interior aqueous phase liquid are through pressure effect, through UF membrane pipe from fenestra, and from interior aqueous phase material Liquid outlet flows into feed liquid bottle and filters in bottle, and the emulsion after breakdown of emulsion flows into milk tank after breakdown of emulsion from emulsion outlet In;
After step 5, continuously operation 3h~6h, treat the close-9.4kPa of system pressure difference, in the outlet of interior aqueous phase liquid Material discharge diminishes, by stopping feed liquid circulating pump and vavuum pump;
After step 6, separation, clean UF membrane pipe is counter, the vacuum breaker in adjusting means, Clear water or organic solvent to anti-cleaning fluid tank enter membrane separator from interior aqueous phase liquid exports, and pass through The hole of UF membrane pipe, washes out the force value that emulsion in hole to the pressure of system uses for the first time with UF membrane pipe Identical, anti-cleaning is terminated.
By above-mentioned design, the present invention can bring following beneficial effect: a kind of contour stealth limits runner film Separator and the method for emulsion liquid film breakdown of emulsion thereof, force emulsion to make uniform pitch in separator, i.e. respectively The rotary motion of individual spiral plate intercropping almost constant speed, make emulsion to initially enter the state motion of membrane separator, Make the plant running time elongated, and can be applicable in the actual production of breakdown of emulsion;Owing to emulsion liquid film is organic phase, Having certain viscosity, the hole in membrane tube is easily blocked by organic phase, contour stealth current limliting road membrane separator breakdown of emulsion Time, within membrane separator everywhere, the emulsion of high-speed motion has good self-cleaning function to membrane tube, thoroughly The property crossed is more preferable, has preferable demulsification.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated:
Fig. 1 is contour stealth current limliting road of the present invention membrane separator structural representation.
Fig. 2 is contour stealth current limliting road of the present invention membrane separator plan structure schematic diagram.
Fig. 3 is contour stealth current limliting road of the present invention membrane separation device composition diagram.
Aqueous phase liquid outlet, 3-membrane separator, 4-current limliting road spiral board, 5-in 1-emulsion outlet, 2-in figure Pressure tap, 6-material inlet, the anti-cleaning fluid tank of 7-, 8-treat breakdown of emulsion head tank, 9-feed liquid, 10-bottle,suction, 11-feed liquid bottle, 12-flowmeter, 13-membrane separator, 14-vacuum breaker, 15-surge flask, 16-breakdown of emulsion Rear milk tank, 17-vavuum pump, 18-pipe shell.
Detailed description of the invention
A kind of contour stealth current limliting road membrane separator and the method for emulsion liquid film breakdown of emulsion thereof, such as Fig. 1 and Fig. 2 Shown in, contour stealth current limliting road membrane separator, go out including pipe shell 18, emulsion outlet 1, interior aqueous phase liquid Mouth 2, UF membrane pipe 3, current limliting road spiral board 4, pressure tap 5 and material inlet 6, described pipe shell 18 is cylinder type hollow pipe;Described emulsion outlet 1 is horizontally set on the bottom of pipe shell 18;Described interior water Phase material liquid outlet 2 is arranged on the bottom centre position of pipe shell 18;Described UF membrane pipe 3 is arranged on pipe The inside of shell 18, and arrange with the cross circular section concentric of pipe shell 18;Described current limliting road spiral board 4 Along the outside of UF membrane pipe 3, it is arranged on the outside of UF membrane pipe 3 in the shape of a spiral, pipe shell 18 interior Side;Described pressure tap 5 is arranged on the top of pipe shell 18;Described material inlet 6 is horizontally set on pipe The top of shell 18, welds with pipe shell 18 tangentially, and parallels with emulsion outlet 1.
As it is shown on figure 3, application is provided with the contour stealth pipe type filtering device of contour stealth current limliting road membrane separator, Including anti-cleaning fluid tank 7, treat breakdown of emulsion head tank 8, feed liquid circulating pump 9, bottle,suction 10, feed liquid bottle 11, stream Milk tank 16 and vacuum after gauge 12, membrane separator 13, vacuum breaker 14, surge flask 15, breakdown of emulsion Pump 17, described anti-cleaning fluid tank 7 and treat that breakdown of emulsion head tank 8 is by pipeline and feed liquid circulating pump 9 and UF membrane Device 13 connects, and is provided with flowmeter 12 on pipeline;Pressure tap 5 and the feed liquid bottle of described membrane separator 13 11 connect, and the emulsion outlet 1 of membrane separator 13 is connected with milk tank after breakdown of emulsion 16;Described feed liquid bottle 11 leads to Cross pipeline to be connected with bottle,suction 10;Being provided with conduit on described bottle,suction 10, the side of conduit is arranged on slow Rush bottle 15 internal;Vacuum breaker 14 and the vacuum connected by conduit it is provided with on described surge flask 15 Pump 17;
Apply the method that described contour stealth current limliting road membrane separation device carries out emulsion liquid film breakdown of emulsion, including following step Suddenly,
Step one, check that pipeline is unimpeded and air-tightness, to anti-cleaning fluid tank 7 with treat breakdown of emulsion head tank 8 adds Material;
Step 2, unlatching feed liquid circulating pump 9 and vavuum pump 17, regulate flowmeter 12, and the flow making emulsion is steady It is scheduled on 30ml/min~80ml/min;
Step 3, treat the effect through feed liquid circulating pump 9 of the breakdown of emulsion liquid, through contour stealth current limliting road membrane separator It is internal that material inlet 6 enters membrane separator 13, and does spiral shell along current limliting road spiral board 4 in membrane separator 13 Rotation motion;Between liquid pearl and the wall of liquid pearl and UF membrane pipe 3 mutually collides and rubs, damaged to emulsion liquid film;
Step 4, interior aqueous phase liquid viscosity are little, good fluidity, divide through film under pressure from fenestra From pipe 3, and from interior aqueous phase liquid outlet 2 inflow feed liquid bottles 11 and filter bottle 10, the emulsion after breakdown of emulsion from In emulsion outlet 1 after inflow breakdown of emulsion in milk tank 16, pressure stability in surge flask 15 mainly maintenance system;
After step 5, continuously operation certain time, treat that system pressure difference becomes big, or in interior aqueous phase liquid outlet 2 Material discharge diminishes, by stopping feed liquid circulating pump 9 and vavuum pump 17;
After step 6, separation, clean UF membrane pipe 3 is counter, the vacuum conditions in adjusting means Valve 14, clear water or organic solvent to anti-cleaning fluid tank 7 enter UF membrane from interior aqueous phase liquid outlet 2 Device 13, and by the hole of UF membrane pipe 3, washes out emulsion in hole to the pressure of system and UF membrane pipe 3 The first force value used is identical, and anti-cleaning is terminated.
With Cu in recycle-water2+Emulsion liquid film be that research object carries out breakdown of emulsion research.
Following table is contour stealth current limliting road membrane separator continuous operating time under different pressures
As can be seen from Table 1, the membrane separator of the unlimited runner of the present invention runs dividing much smaller than limited runner time From device.Further, contour stealth current limliting road membrane separator can work more than 6 hours continuously.The blocking of 6 hours caudacorias Ratio is more serious, needs backwash, i.e. stops charging, closes discharging opening, and clear water or organic solvent are from membrane separator Liquid outlet is intake, and the organic phase that membrane tube hole adheres to, through fenestra, is washed away by current, discharges from charging aperture.When In membrane separator, flow and pressure reach original state and are anti-cleaning state and terminate.
Being organic phase owing to emulsion liquid film is outside, have certain viscosity, the hole in membrane tube is easily by organic phase Blocking, during contour stealth current limliting road membrane separator breakdown of emulsion, emulsion movement velocity is very fast, washes away membrane tube, There is good self-cleaning function, have preferable demulsification.But relatively big when producing load, when improving breakdown of emulsion amount, Being accomplished by improving membrane area, its way one is to add Large Diameter Pipeline, but by bearing pressure and membrane tube level of processing is limited System, caliber can not want much have much;Two is to lengthen membrane tube length, but after length of tube increases, material stream Dynamic situation has large change.When membrane tube is longer, slurry is in rotating flow state when having just enter into membrane tube annular space, There is centrifugal, the ability of tangent line flushing.When emulsion flows into the rear section of membrane tube, owing to emulsion itself has one Determining viscosity, add the energy loss of eddy flow, emulsion moving line changes, and fundamental transformation becomes axially stream Dynamic, the closer to the port of export closer to laminar flow, also will lose the effect of eddy flow, cause breakdown of emulsion efficiency to drop very Low.The structure of contour stealth current limliting road membrane separator, principle have a greater advantage, and can develop that to be applied to breakdown of emulsion real During border produces.

Claims (2)

1. contour stealth current limliting road membrane separator, is characterized in that: include pipe shell (18), emulsion outlet (1), Interior aqueous phase liquid outlet (2), UF membrane pipe (3), current limliting road spiral board (4), pressure tap (5) and thing Material import (6), described pipe shell (18) is cylinder type hollow pipe;Described emulsion outlet (1) level sets Put the bottom in pipe shell (18);Described interior aqueous phase liquid outlet (2) is arranged on pipe shell (18) Bottom centre position;Described UF membrane pipe (3) is arranged on the inside of pipe shell (18), and and pipe The cross circular section concentric of shell (18) is arranged;Described current limliting road spiral board (4) is along UF membrane pipe (3) Outside, be arranged on the outside of UF membrane pipe (3), the inner side of pipe shell (18) in the shape of a spiral;Described Pressure tap (5) is arranged on the top of pipe shell (18);Described material inlet (6) is horizontally set on circle The top of pipe shell (18), welds with pipe shell (18) tangentially, and equal with emulsion outlet (1) OK.
2. contour stealth current limliting road membrane separator is for the method for emulsion liquid film breakdown of emulsion, it is characterized in that: application is arranged There is the contour stealth pipe type filtering device of contour stealth current limliting road membrane separator, including anti-cleaning fluid tank (7), treat brokenly Dairy milk starting material tank (8), feed liquid circulating pump (9), bottle,suction (10), feed liquid bottle (11), flowmeter (12), Milk tank (16) and true after membrane separator (13), vacuum breaker (14), surge flask (15), breakdown of emulsion Empty pump (17), described anti-cleaning fluid tank (7) and treat that breakdown of emulsion head tank (8) passes through pipeline and feed liquid circulating pump (9) it is connected with membrane separator (13), and on pipeline, is provided with flowmeter (12);Described membrane separator (13) Pressure tap (5) be connected with feed liquid bottle (11), the emulsion outlet (1) of membrane separator (13) and breakdown of emulsion Rear milk tank (16) connects;Described feed liquid bottle (11) is connected with bottle,suction (10) by pipeline;Described Bottle,suction is provided with conduit on (10), and it is internal that the side of conduit is arranged on surge flask (15);Described buffering It is provided with vacuum breaker (14) and the vavuum pump (17) connected by conduit on bottle (15);
The method applying described contour stealth pipe type filtering device to carry out emulsion liquid film breakdown of emulsion, comprises the following steps,
Step one, check that pipeline is unimpeded and air-tightness, to anti-cleaning fluid tank (7) with treat breakdown of emulsion head tank (8) Middle charging;
Step 2, unlatching feed liquid circulating pump (9) and vavuum pump (17), throttling gauge (12), make emulsion Stability of flow is at 30ml/min~80ml/min;
Step 3, treat the effect through feed liquid circulating pump (9) of the breakdown of emulsion liquid, through contour stealth current limliting road membrane separator Material inlet (6) to enter membrane separator (13) internal, and along the rotation of current limliting road membrane separator (13) in Stream plate (4) is spinned motion;Between liquid pearl and the wall of liquid pearl and UF membrane pipe (3) mutually collides and rubs, Damaged to emulsion liquid film;
Step 4, interior aqueous phase liquid are through pressure effect, through UF membrane pipe (3) from fenestra, and from Nei Shui Phase material liquid outlet (2) flows into feed liquid bottle (11) and filters in bottle (10), and the emulsion after breakdown of emulsion goes out from emulsion In mouth (1) after inflow breakdown of emulsion in milk tank (16);
After step 5, continuously operation 3h~6h, treat the close-9.4kPa of system pressure difference, interior aqueous phase liquid outlet (2) Middle material discharge diminishes, by stopping feed liquid circulating pump (9) and vavuum pump (17);
After step 6, separation, cleaning UF membrane pipe (3) is counter, the vacuum in adjusting means is adjusted Joint valve (14), clear water or organic solvent to anti-cleaning fluid tank (7) export (2) from interior aqueous phase liquid Enter membrane separator (13), and by the hole of UF membrane pipe (3), wash out the emulsion in hole to system The force value that pressure uses for the first time with UF membrane pipe (3) is identical, and anti-cleaning is terminated.
CN201610269665.1A 2016-04-27 2016-04-27 Contour stealth current limliting road membrane separator and its method for emulsion liquid film demulsification Expired - Fee Related CN105833569B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109011820A (en) * 2018-09-17 2018-12-18 中石化(洛阳)科技有限公司 Anisotropic membrane separator and catalytic slurry equipment for separating liquid from solid
CN110740799A (en) * 2017-06-21 2020-01-31 M技术株式会社 Filtration membrane module and filtration treatment method

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WO2008086009A1 (en) * 2007-01-09 2008-07-17 Cambridge Water Technology, Inc. A system and method for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water
CN203212400U (en) * 2013-02-28 2013-09-25 闵方权 Rotational flow centrifugal separation device

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Publication number Priority date Publication date Assignee Title
CN1424134A (en) * 2003-01-09 2003-06-18 邵显东 Centrifugal rotary supergravity-membrane separating technology
CN2933521Y (en) * 2006-01-26 2007-08-15 中北大学 Inorganic micro-filtration membrane vacuum emulsion device
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CN110740799A (en) * 2017-06-21 2020-01-31 M技术株式会社 Filtration membrane module and filtration treatment method
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CN109011820A (en) * 2018-09-17 2018-12-18 中石化(洛阳)科技有限公司 Anisotropic membrane separator and catalytic slurry equipment for separating liquid from solid

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Inventor after: Wang Shujiang

Inventor after: Wen Chunyang

Inventor after: Dan Shaolei

Inventor after: Yang Yongheng

Inventor after: Shi Xiumin

Inventor after: Zhang Guokui

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Termination date: 20190427