阅读说明：本技术 一种混合液体分离装置及方法 (Mixed liquid separation device and method ) 是由 姚瀚威 刘鹏 范涛 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种混合液体分离装置及方法,属于水处理技术领域；该混合液体分离装置包括容器、超声波发生组件和反射面；容器壁体设有进口和出口；超声波发生组件具有声波发射部,声波发射部与反射面设置于容器的两侧,超声波发生组件用于通过声波发射部往反射面的方向发出射波,反射面用于将出射波往声波发射部的方向反射,以形成反射波；反射面与声波发射部之间被配置为,形成的反射波与出射波叠加形成驻波；该混合液体分离方法包括液体导入步骤、驻波分离步骤和液体导出步骤。本发明通过超声波发生组件与反射面的配合,能够在容器内产生驻波,利用驻波场的作用,能够快速地使得混合液体得到分离,处理效果好。(The invention discloses a mixed liquid separation device and a method, belonging to the technical field of water treatment; the mixed liquid separation device comprises a container, an ultrasonic wave generation assembly and a reflecting surface; the wall body of the container is provided with an inlet and an outlet; the ultrasonic wave generating assembly is provided with a sound wave emitting part, the sound wave emitting part and the reflecting surface are arranged on two sides of the container, the ultrasonic wave generating assembly is used for emitting emergent waves to the direction of the reflecting surface through the sound wave emitting part, and the reflecting surface is used for reflecting the emergent waves to the direction of the sound wave emitting part to form reflected waves; the reflecting surface and the sound wave emitting part are configured to form a standing wave by the formed reflected wave and the emergent wave in a superposition mode; the mixed liquid separation method comprises a liquid introduction step, a standing wave separation step and a liquid discharge step. The ultrasonic wave generating assembly is matched with the reflecting surface, standing waves can be generated in the container, the mixed liquid can be quickly separated under the action of the standing wave field, and the treatment effect is good.)

1. A mixed liquid separation device is characterized in that:

comprises a container, an ultrasonic generating assembly and a reflecting surface;

the wall body of the container is provided with an inlet and an outlet; the ultrasonic wave generating assembly is provided with a sound wave emitting part, the sound wave emitting part and the reflecting surface are arranged on two sides of the container, the ultrasonic wave generating assembly is used for emitting emergent waves to the direction of the reflecting surface through the sound wave emitting part, and the reflecting surface is used for reflecting the emergent waves to the direction of the sound wave emitting part to form reflected waves;

the reflecting surface and the sound wave emitting part are configured to form a standing wave by the formed reflected wave and the emergent wave in a superposition mode.

2. The mixed liquid separating device according to claim 1, wherein:

the ultrasonic wave generating assembly comprises a control system, a signal generator and a transducer;

the control system is electrically connected with the signal generator, and the signal generator is electrically connected with the transducer; the transducer has the acoustic wave emitting portion.

3. The mixed liquid separating apparatus according to claim 2, wherein:

the device also comprises a liquid material barrel to be separated, a material barrel and a water pump;

the transducer is arranged on the outer side of the bottom wall of the container, the reflecting surface is arranged on the inner side of the top wall of the container, and the reflecting surface is a curved surface; the inlet and the outlet are arranged on the side wall of the container, and the inlet is arranged between the outlet and the bottom wall of the container;

the liquid barrel to be separated is communicated with the inlet through the water pump; the material barrel is communicated with the outlet.

4. The mixed liquid separating apparatus according to claim 2, wherein:

the device also comprises a trimmer; the reflecting surface is connected with the side wall of the container in a sliding way;

the micro-adjuster has an adjustment state and a fixed state, when the micro-adjuster is in the adjustment state, the reflecting surface can slide along the side wall of the container to be close to or far away from the sound wave emitting part, and when the micro-adjuster is in the fixed state, the micro-adjuster is used for fixing the relative position between the reflecting surface and the side wall of the container.

5. The mixed liquid separating apparatus according to any one of claims 1 to 3, wherein:

the absorption piece comprises an absorption body and a plurality of bulges; the absorber is arranged between the reflecting surface and the sound wave transmitting part, and the bulge is arranged on the side, close to the reflecting surface, of the absorber body;

absorption gaps are formed among the bulges and are used for absorbing the reflected waves; the absorption piece is provided with a through hole, and the through hole is used for emitting the emergent wave.

6. The mixed liquid separating device according to claim 5, wherein:

the absorber is provided on a wall surface of the container bottom wall on a side close to the reflection surface, and the container inner wall has an inclined wall portion which is contracted in a direction toward the ultrasonic wave generation unit from the reflection surface in a direction toward a central axis of the container.

7. The mixed liquid separating apparatus according to any one of claims 1 to 3, wherein:

still include the overflow pipe, the overflow pipe has feed inlet and discharge gate, the discharge gate is located outside the container, the feed inlet is located in the container, the feed inlet orientation the plane of reflection.

8. The mixed liquid separating apparatus according to any one of claims 1 to 3, wherein:

the device also comprises an air pressure regulator;

the container is provided with an air outlet; the air outlet is arranged on the top wall of the container or on the side wall between the reflecting surface and the outlet; the air outlet is connected with the air pressure regulator.

9. A method for separating mixed liquid is characterized in that:

a liquid introduction step: guiding the liquid to be separated into a container;

standing wave separation: emitting an emergent wave from one side of the container by using an ultrasonic wave generating assembly, wherein the emergent wave penetrates through the liquid to be separated and is transmitted to a reflecting surface on the other side of the container, the reflecting surface is used for reflecting to form a reflected wave which has the same amplitude, the same frequency and the opposite direction with the emergent wave, the emergent wave and the reflected wave are superposed in the container to form a standing wave, and the standing wave acts on different substances in the liquid to be separated so that the liquid to be separated is layered;

material exporting: the separated materials are guided to the material barrel outside the container from the inside of the container through the guiding-out component.

10. The mixed liquid separation method according to claim 9, characterized in that:

in the liquid introducing step, the liquid to be separated is introduced from the bottom of the side wall of the container;

in the standing wave separation step, the ultrasonic wave generation assembly is controlled so that the ultrasonic wave generation assembly emits a plurality of sets of emission waves with different frequencies at intervals.

Technical Field

The invention relates to the technical field of water treatment, in particular to a mixed liquid separation device and a method.

Background

At present, separation technology has been developed along with the development of domestic and industrial fields, and the progress of separation technology can be said to be a cornerstone for promoting human productivity. Until now, evaporation, drying, crystallization and the like are still widely applied in medical, food and other industries, but the important position of a membrane separation technology has to be put forward in the chemical industry, people seek an energy-saving and efficient separation method, the membrane separation technology solves the bottleneck of the traditional separation technology in large water volume and high energy consumption, common microfiltration, ultrafiltration, nanofiltration and reverse osmosis are developed so far to separate substances with different precisions, and the production requirements of process materials are met.

In recent times, ultrasonic separation technology has a considerable prospect, and energy is released to mixed water by utilizing the characteristics of cavitation, thermal action, mechanical action and the like of ultrasonic waves, so that the mixed water is rapidly and alternately compressed and expanded to generate a series of physical actions to realize the separation of various substances. Under the action of ultrasonic waves, when the material medium is in a half expansion period, the medium is pulled to expand in a bubble form; when the pressure is in a half period of compression, the bubbles shrink, when the pressure change amplitude is large and the pressure is lower than the low pressure, the compressed bubbles collapse, a 'cavity' phenomenon appears in a medium, the phenomenon disappears along with the pressure change and the unbalance of external pressure, and at the moment of disappearance of the 'cavity', the surrounding of liquid causes very large pressure and temperature increase, and plays a very complicated mechanical action to achieve the separation purpose.

However, the existing ultrasonic technology utilizes the principles of cavitation, thermal effect and mechanical effect to realize the homogenization or separation effect of mixed water, the retention time of ultrasonic waves is long, and the noise is obvious.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a mixed liquid separation device with good treatment effect; the second purpose of the present invention is to provide a method for separating a mixed liquid with a good treatment effect.

One of the purposes of the invention is realized by adopting the following technical scheme:

a mixed liquid separation device comprises a container, an ultrasonic generation assembly and a reflecting surface;

the wall body of the container is provided with an inlet and an outlet; the ultrasonic wave generating assembly is provided with a sound wave emitting part, the sound wave emitting part and the reflecting surface are arranged on two sides of the container, the ultrasonic wave generating assembly is used for emitting emergent waves to the direction of the reflecting surface through the sound wave emitting part, and the reflecting surface is used for reflecting the emergent waves to the direction of the sound wave emitting part to form reflected waves;

the reflecting surface and the sound wave emitting part are configured to form a standing wave by the formed reflected wave and the emergent wave in a superposition mode.

Further, the ultrasonic wave generating assembly comprises a control system, a signal generator and a transducer;

the control system is electrically connected with the signal generator, and the signal generator is electrically connected with the transducer; the transducer has the acoustic wave emitting portion.

Further, the device also comprises a liquid material barrel to be separated, a material barrel and a water pump;

the transducer is arranged on the outer side of the bottom wall of the container, the reflecting surface is arranged on the inner side of the top wall of the container, and the reflecting surface is a curved surface; the inlet and the outlet are arranged on the side wall of the container, and the inlet is arranged between the outlet and the bottom wall of the container;

the liquid barrel to be separated is communicated with the inlet through the water pump; the material barrel is communicated with the outlet.

Further, a fine adjuster is also included; the reflecting surface is connected with the side wall of the container in a sliding way;

the micro-adjuster has an adjustment state and a fixed state, when the micro-adjuster is in the adjustment state, the reflecting surface can slide along the side wall of the container to be close to or far away from the sound wave emitting part, and when the micro-adjuster is in the fixed state, the micro-adjuster is used for fixing the relative position between the reflecting surface and the side wall of the container.

Further, the absorption piece is also included, and comprises an absorption body and a plurality of bulges; the absorber is arranged between the reflecting surface and the sound wave transmitting part, and the bulge is arranged on the side, close to the reflecting surface, of the absorber body;

absorption gaps are formed among the bulges and are used for absorbing the reflected waves; the absorption piece is provided with a through hole, and the through hole is used for emitting the emergent wave.

Further, the absorber is provided on a wall surface of the container bottom wall on a side close to the reflection surface, and the container inner wall has an inclined wall portion which is contracted in a direction toward the ultrasonic wave generating unit from the reflection surface in a direction toward a central axis of the container.

Further, still include the overflow pipe, the overflow pipe has feed inlet and discharge gate, the discharge gate is located outside the container, the feed inlet is located in the container, the feed inlet orientation the plane of reflection.

Further, the device also comprises an air pressure regulator;

the container is provided with an air outlet; the air outlet is arranged on the top wall of the container or on the side wall between the reflecting surface and the outlet; the air outlet is connected with the air pressure regulator.

The second purpose of the invention is realized by adopting the following technical scheme:

a method for separating a mixed liquid, comprising the steps of: guiding the liquid to be separated into a container;

standing wave separation: emitting an emergent wave from one side of the container by using an ultrasonic wave generating assembly, wherein the emergent wave penetrates through the liquid to be separated and is transmitted to a reflecting surface on the other side of the container, the reflecting surface is used for reflecting to form a reflected wave which has the same amplitude, the same frequency and the opposite direction with the emergent wave, the emergent wave and the reflected wave are superposed in the container to form a standing wave, and the standing wave acts on different substances in the liquid to be separated so that the liquid to be separated is layered;

material exporting: the separated materials are guided to the material barrel outside the container from the inside of the container through the guiding-out component.

Further, in the liquid introducing step, the liquid to be separated is introduced from the bottom of the side wall of the container;

in the standing wave separation step, the ultrasonic wave generation assembly is controlled so that the ultrasonic wave generation assembly emits a plurality of sets of emission waves with different frequencies at intervals.

Compared with the prior art, the invention has the beneficial effects that:

through the cooperation of ultrasonic wave generation assembly and plane of reflection, can produce the standing wave in the container, utilize the effect of standing wave field, can make the mixed liquid obtain homogeneity or separation fast, the treatment effect is good.

Drawings

FIG. 1 is a schematic structural view of a mixed liquid separating apparatus according to the present invention;

FIG. 2 is a second schematic structural view of the mixed liquid separator of the present invention;

FIG. 3 is a schematic view of the construction of an absorbent article of the present invention;

fig. 4 is a schematic diagram of a first outgoing wave and a second outgoing wave in the embodiment of the present invention;

in the figure: 10. a container; 11. an inlet; 12. an outlet; 13. an inclined wall portion; 14. an air outlet; 21. a transducer; 22. a control system; 23. a signal generator; 30. a reflective surface; 40. a trimmer; 50. an absorbent member; 51. an absorbent body; 52. a protrusion; 60. an air pressure regulator; 71. a liquid material barrel to be separated; 72. a material barrel; 73. a water pump; 74. an overflow conduit; 741. a discharge port; 80. a bottom cover.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1 to 4, the present embodiment provides a mixed liquid separating apparatus including a container 10, an ultrasonic wave generating unit 20, and a reflecting surface 30; the container 10 is used for containing liquid to be treated, such as waste water, the wall body of the container 10 is provided with an inlet 11 and an outlet 12, the liquid to be treated is introduced into the container 10 through the inlet 11, when mixed liquid is separated, various separated substances are layered, and the outlet 12 is used for respectively leading the layered substances out of the container 10; the ultrasonic wave generating assembly 20 is provided with a sound wave emitting part, the sound wave emitting part and the reflecting surface 30 are arranged on two sides of the container 10, the sound wave emitting part and the reflecting surface 30 are positioned on the same straight line, so that after the ultrasonic wave generating assembly 20 emits the outgoing waves to the reflecting surface 30 through the sound wave emitting part, the outgoing waves can penetrate through the liquid to be processed to be emitted to the reflecting surface 30, and the reflecting surface 30 is used for reflecting the outgoing waves to the direction of the sound wave emitting part so as to form the reflected waves which are consistent with the frequency, the amplitude and the vibration direction of the outgoing waves and have opposite propagation directions; the reflecting surface 30 and the sound wave emitting portion are configured such that the formed reflected wave and the emitted wave can intersect and overlap to form a standing wave.

The mixed liquid separation device of this embodiment utilizes the standing wave field of making to act on mixed liquid for all kinds of substances among the mixed liquid take place the migration, help realizing the layering of the different substances among the mixed liquid, in order to promote mixed liquid separation effect.

In addition to the above-mentioned structure, in order to realize that "the reflection surface 30 and the acoustic wave emitting portion are disposed such that the formed reflection wave and the emission wave can intersect and overlap to form a standing wave", the shape of the reflection surface 30 can be adjusted to adjust the relative distance between the reflection surface 30 and the acoustic wave emitting portion such that the frequency, amplitude, and vibration direction of the reflection wave reflected by the reflection surface 30 are the same as those of the emission wave, and the propagation direction is opposite to that of the emission wave, thereby forming a standing wave by the formed reflection wave and the emission wave can intersect and overlap.

Preferably, in order to increase the speed of material stratification and increase the separation effect, the ultrasonic wave generating assembly 20 includes a control system 22, a signal generator 23 and a transducer 21, the control system 22 is electrically connected to the signal generator 23, and the signal generator 23 is electrically connected to the transducer 21; the transducer 21 has an acoustic wave emitting portion.

Specifically, the signal generator 23 is provided with an output interface connected with the transducer 21, the signal generator 23 is further provided with an input interface, the input interface is connected with the control system 22 through an electric wire, so that parameter editing can be performed on the signal generator 23 through special software to output different signals at intervals, after the signal is received by the transducer 21, ultrasonic waves with different frequencies can be output, and when the ultrasonic waves with different frequencies are alternately replaced, antinodes and nodes at the superposition position form a specific channel, so that the flow of a substance is pushed; the alternation of different frequencies also has an effect on the material flow rate. The control system 22 in this embodiment is a computer, and may be other operation terminals in other embodiments.

Specifically, the parameters modified by the control system 22 are frequency, amplitude, power, various band switching, and the like.

In this embodiment, the control system 22, the signal generator 23, and the transducer 21 are arranged to cause the positions of the antinodes and nodes of the standing acoustic waves to be continuously switched, so as to generate a channel for driving the material to flow, thereby further increasing the separation speed and the separation effect.

Preferably, the ultrasonic wave generating assembly 20 of the present embodiment further includes a power amplifier, and after the signal generator 23 outputs the signal, the signal is processed by the power amplifier, so that the weak signal output by the signal generator 23 can drive the transducer 21 to operate.

Preferably, the mixed liquid separating device of this embodiment further includes a to-be-separated liquid barrel 71, a material barrel 72 and a water pump 73, where in this embodiment, there are two material barrels 72; the transducer 21 is arranged on the outer side of the bottom wall of the container 10, the reflecting surface 30 is arranged on the inner side of the top wall of the container 10, the reflecting surface 30 is a curved surface, the shape of the reflecting surface 30 is selected to be a curved surface because the sound wave emitted by the transducer 21 does not belong to a plane wave, the reflecting surface 30 in the embodiment is convex in the direction away from the transducer 21, and the curvature of the reflecting surface 30 is defined according to specific situations; the inlet 11 and the outlet 12 are arranged on the side wall of the container 10, the inlet 11 is arranged between the outlet 12 and the bottom wall of the container 10, the inlet 11 of the embodiment is arranged at the bottom of the side wall of the container 10, and the outlet 12 is arranged in the middle of the side wall of the container 10; the material barrel 71 of the liquid to be separated is communicated with the inlet 11 through a water pump 73; the material barrel 72 is in communication with the outlet 12.

Preferably, after the sound wave emitted from the sound wave emitting part of the transducer 21 propagates in the container 10, the sound wave contacts the reflection surface 30 and is reflected to form a reflected wave, and since the curvature of the reflection surface 30 is not easy to adjust, in order to correct the node of the reflected wave so that the node of the reflected wave can coincide with the node of the outgoing wave emitted from the transducer 21, the mixed liquid separating device of the present embodiment further comprises a fine adjuster 40, and the reflection surface 30 is slidably connected with the side wall of the container 10, the fine adjuster 40 is used for adjusting the distance between the reflection surface 30 and the transducer 21, so that one row of outgoing waves can obtain another row of reflected waves with opposite propagation directions after contacting the reflection surface 30, and the proper distance can obtain the maximization of the standing wave field intensity and the coverage area.

Specifically, the fine actuator 40 has an adjustment state in which the reflecting surface 30 is slidable along the side wall of the container 10 to approach or separate from the sound wave emitting portion, and a fixed state in which the fine actuator 40 is fixed to fix the relative position between the reflecting surface 30 and the side wall of the container 10. In some embodiments, the sliding connection between the reflective surface 30 and the side wall of the container 10 is achieved by the cooperation of a guide rail and a slider, although other ways are possible and the fine actuator 40 can be achieved by the structure of a locking member.

Preferably, the reflective surface 30 is a PVDF reflective surface 30 having some elasticity.

Preferably, in order to avoid the primary reflected wave reflected by the reflecting surface 30 from being reflected again at the bottom of the container 10 and avoid the reflected wave reaching the bottom of the container 10 from being overlapped and interfered with the outgoing wave emitted by the transducer 21, the mixed liquid separating device of the embodiment further comprises an absorbing member 50, wherein the absorbing member 50 comprises an absorbing body 51 and a plurality of bulges 52; the absorber 50 is provided between the reflection surface 30 and the sound wave emitting portion, and the projection 52 is provided on the absorption body 51 on the side close to the reflection surface 30; absorption gaps are formed among the plurality of bulges 52 and are used for intercepting reflected waves; the absorption member 50 is provided with a through hole for the emission of the emission wave.

By providing the absorption member 50, most of the reflected sound waves are trapped between the absorption gaps of the plurality of protrusions 52, and the reflected energy is reduced by absorption and transmission (i.e., emission phenomenon after passing through a solid) to prevent the reflected waves from being secondarily reflected to the reflection surface 30 through the bottom wall of the container 10, thereby creating a relatively clean environment in which only the emitted waves from the sound wave generating assembly and the reflected waves from the reflection surface 30 are primarily reflected as much as possible; by arranging the absorption member 50, the residual sound wave formed by absorbing multiple reflections can be eliminated, the interference of the residual sound wave on the standing wave field is avoided, the daily throughput is improved, and the rapid separation of substances is facilitated. The absorption member 50 in this embodiment is provided with a through hole, and the transducer 21 adopts a specification of 40khz/60w, so that the outgoing wave emitted from the transducer 21 can be emitted from the through hole, and the absorption member 50 has no influence on the outgoing wave emitted from the transducer 21. In other embodiments, the position of the protrusion 52 and the position of the through hole may be adjusted to ensure that the absorption member 50 only acts on the reflected wave and does not affect the emergent wave.

Preferably, the protrusions 52 in this embodiment are conical protrusions 52.

Preferably, in order to absorb and trap the reflected wave by the absorber 50 and prevent the secondary reflected wave from being generated, the absorber 50 is provided on a wall surface of the bottom wall of the container 10 on the side close to the reflecting surface 30, the inner side wall of the container 10 has an inclined wall portion 13, and the inclined wall portion 13 is contracted in the direction of the central axis of the container 10 in the direction from the reflecting surface 30 to the ultrasonic wave generating unit 20.

Preferably, the inclination angle of the inclined wall 13 is set to 70 to 80 degrees.

Preferably, in order to facilitate the liquid separated in the standing wave field to be led out of the container 10 for collecting the material, the mixed liquid separation device of the embodiment further includes an overflow conduit 74, where the overflow conduit 74 has a feed inlet and a discharge outlet 741, the discharge outlet 741 is located outside the container 10, the feed inlet is located inside the container 10, and the material flows into the overflow conduit 74 from the feed inlet and flows out of the container 10 from the discharge outlet 741 to flow into the material barrel 72 for collection under the action of the internal pressure of the container 10; in addition, in order to ensure that the mixed liquid is guided out to the material barrel 72 through the overflow conduit 74 after being sufficiently separated, the feeding port faces the reflecting surface 30, so that the material can be prevented from entering the overflow conduit 74 and flowing out when part of the materials are not completely separated.

Preferably, in order to prevent excessive gas generated by the mixed water from remaining in the container 10, the mixed liquid separating apparatus of the present embodiment further includes a gas pressure regulator 60, and the container 10 is provided with the gas outlet 14; the air outlet 14 is arranged on the top wall of the container 10 or on the side wall between the reflecting surface 30 and the outlet 12; the air outlet 14 is connected with an air pressure regulator 60; the air pressure regulator 60 is used for regulating the internal air pressure of the container 10 so as to stabilize the internal air pressure within 0.3-0.5 MPa, so that the liquid levels of various substances are not changed greatly while the water inflow is increased, and the separation speed and the separation effect can be greatly improved by the arrangement.

Preferably, to facilitate mounting and replacement of the transducer 21, a bottom cover 80 is provided at the bottom of the container 10, the bottom cover 80 forming a mounting cavity with the bottom wall of the container 10 for mounting the transducer 21.

Preferably, the container 10 side walls are transparent side walls, which may be made of clear plexiglass, to facilitate viewing of the separation effect.

Preferably, in order to ensure the separation effect, the frequency of the outgoing wave emitted by the transducer 21 in this embodiment is between 10khz and 37 khz.

The use method of the mixed liquid separation device of the embodiment is as follows:

starting the separation device, operating the water pump 73, pumping the mixed liquid in the liquid bucket 71 to be separated into the container 10 by the water pump 73 through the inlet 11 at the bottom of the container 10, adjusting control parameters on the control system 22 according to different water quality types after the liquid level rises and exceeds the feed port 741 of the overflow conduit 74, controlling the transducer 21 to operate, emitting a first emergent wave by the transducer 21, wherein the duration of the first emergent wave is 0.05 second and the frequency is 21kHz, emitting a second emergent wave by the transducer 21 after the first emergent wave stops for a certain interval, the duration of the second emergent wave is 0.08 second and the frequency is 23kHz, separating the mixed liquid in the standing wave field in the container 10 to form a multilayer separator, but the bottom layer is still a mixture, observing the separation condition through the transparent side wall of the container 10 on the outer side, and because the inlet 11 keeps water inflow, the pressure effect in the container 10 is realized, the liquid except the bottommost layer is guided out to the material bucket 72 through an overflow conduit 74 to be collected.

Specifically, the schematic diagram of two bands adopted in this embodiment is shown in fig. 4, and the interval time between the two bands may allow the separation device to have a certain idle period; while the lowermost liquid in the container 10 is a buffer layer, the buffer layer may be present so that water enters on one side without affecting the upper liquid layers.

Referring to fig. 2, this embodiment further provides an experimental example of a separation operation performed on a mixed liquid by using the mixed liquid separation apparatus of the present application:

taking 25L of certain wastewater as a mixed water sample, wherein the initial pH value is 7-8, the measured COD value is 23300mg/L, the volume of the container 10 is 2L, the container is provided with a water inlet pipe and 2 overflow conduits 74, a liquid material bucket 71 to be separated containing the mixed water sample is pumped by a water pump 73, the water inlet flow is controlled by the water pump 73 to be 50L/h, the water enters from the bottom of the container 10, the equipment is started after the liquid level rises to the overflow conduits 74, because a water outlet pipe still contains the mixed water sample at the beginning, the water outlet of the equipment returns to the liquid material bucket 71 to be separated within 3 minutes, the water samples are taken after 3 minutes, for convenient observation and distinction, the mixed liquid separating device is provided with two overflow conduits 74, two water samples are shared, the material 1 is an oil-containing material, the material 2 is transparent yellowish effluent, the mixed liquid separating device continuously enters and exits, 16L of transparent yellowish effluent and 5L of oily materials are obtained, and the rest of the effluent is in a raw water barrel and an equipment container 10, 3 groups of experiments are carried out, and the COD values of the two water samples are measured. The following experimental data sheet was obtained:

item	Clear water COD (mg/L)	Oil-containing material COD (mg/L)
			Experiment 1	120	92000
Experiment 2	80	94400
			Experiment 3	104	92800

As can be seen from the data in the table, most of the organic matters in the wastewater are separated from the clear water, so that the COD of the oily material is higher, the volume ratio of the organic matters to the clear water is 3:1 on average, and only the COD value is measured by the data in the table.

The embodiment also provides a mixed liquid separation method, which includes:

a liquid introduction step: guiding the liquid to be separated into the container 10;

standing wave separation: emitting an emergent wave from one side of the container 10 by using the ultrasonic wave generating assembly 20, wherein the emergent wave penetrates through the liquid to be separated and is transmitted to the reflecting surface 30 on the other side of the container 10, the reflecting surface 30 is used for reflecting to form a reflected wave which has the same amplitude and frequency as the emergent wave and is opposite to the emergent wave, the emergent wave and the reflected wave are superposed in the container 10 to form a standing wave, and the standing wave acts on different substances in the liquid to be separated so as to delaminate the liquid to be separated;

material exporting: the separated material is guided from the inside of the container 10 to the material barrel 72 outside the container 10 by the guide-out assembly.

Preferably, in the liquid introducing step, the liquid to be separated is introduced from the bottom of the side wall of the vessel 10;

in the standing wave separation step, the control system 22 controls the ultrasonic wave generating assembly 20 to make the ultrasonic wave generating assembly 20 emit a plurality of sets of outgoing waves with different frequencies at intervals, and interval time is set between the different outgoing waves, and the ultrasonic wave generating assembly 20 stops emitting the outgoing waves during the interval time.

In some embodiments, the ultrasonic wave generating assembly 20 may emit the outgoing wave by way of the first outgoing wave, the interval time, the second outgoing wave, the interval time, the third outgoing wave, the interval time, the first outgoing wave, the interval time, the second outgoing wave … ….

The mixed liquid separation method of the embodiment is beneficial to improving the separation speed and the separation effect.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.