CN204637641U - A kind of labyrinth type hypergravity liquid-liquid extraction separator - Google Patents

Abstract

The utility model discloses a kind of labyrinth type hypergravity liquid-liquid extraction separator, it comprises shell, filler helix tube, mixing mass transfer mechanism, separation collection mechanism, lamina tecti, base, bearing sleeve, axle, motor; Wherein mix mass transfer mechanism and comprise charging planet vane mixing arrangement, mass transfer apparatus, cone mill liquid wheel, mass transfer apparatus is located between charging planet vane mixing arrangement and cone mill liquid wheel; Separation collection mechanism comprises phase-splitting groove, elastic switch, feeder; The utility model device takes into account two-phase laminated flow while the efficient extraction of realization, and multiple filling layers structure increases the mass transfer area of two-phase liquid, and complicated packing layer structure makes mixing more even, extends the reaction time, improves extraction yield; Separation collection mechanism, as the important composition of extraction process, achieves the integration of extract and separate.

Description

A labyrinth type supergravity liquid-liquid extraction separator

technical field

The utility model relates to a labyrinth type supergravity liquid-liquid extraction separator, which belongs to the technical field of mass transfer enhancement.

Background technique

High-gravity liquid-liquid extraction separation technology has been widely used in the fields of biochemistry and biochemical industry because of its good extraction effect. However, the residence time of the current equipment is too short during the extraction process, and its single-layer packing structure makes the mass transfer area too small. In addition, there are many shortcomings such as high equipment manufacturing cost, bulky volume, slow extraction rate and low extraction efficiency. At present, there are few talents and equipment in the field of metallurgy, and most of the existing high-gravity engineering technology devices rotate with the entire rotor, and most of them have a single-layer packing structure, so the mixing and mass transfer are not thorough. shorter residence time.

In addition, Chinese patent applications CN101254355A and CN1116125A disclose a liquid distributor in the form of rotating distribution, that is, the rotating shaft is a hollow structure and has no liquid outlet holes, and the liquid enters the hollow shaft through the two-phase liquid inlet pipe, and the liquid in the rotating shaft is together Rotating, under the action of centrifugal force, it is sent into the packing layer through the hole on the rotating shaft. Although this kind of liquid distributor improves the operating flexibility, due to the limitation of the radius of the rotating shaft, the centrifugal force on the liquid in the hollow shaft is small, and the liquid handling capacity is small.

Contents of the invention

The utility model aims at the shortcomings of the above-mentioned prior art, and provides a labyrinth type supergravity liquid-liquid extraction separator, which includes a casing 1, a packing spiral tube 2, a mixing mass transfer mechanism, a separation and collection mechanism, a top cover plate 12, a base 13. Bearing sleeve 18, shaft 24, motor 33; top cover plate 12 is fixed on the upper end of shell 1 through screw connection, base 13 is set in the cavity of shell 1 and its lower end is fixedly connected with shaft 24, and the mixing mass transfer mechanism is set on On the base 13, the separation and collection mechanism is arranged at the lower end of the base 13 and connected with the lower end of the casing 1, the packing spiral tube 2 is fixed inside the casing 1, the bearing seat sleeve 18 and the rotary switch 17 are threaded secondary dynamic connections, and the bearing seat sleeve 18 is set on the shaft 24, the bearing seat cover 18 is fixed on the frame 34 by screw connection, the motor 33 is installed on the frame 34 and is connected with the small pulley 25 on the shaft 24 through the timing belt 26, and drives the shaft 24 to rotate;

The mixing and mass transfer mechanism includes a feeding planetary impeller mixing device, a mass transfer device, and a conical grinding wheel. The mass transfer device is arranged between the feeding planetary impeller mixing device and the conical grinding wheel. The feeding planetary impeller mixing device It includes a two-phase liquid inlet pipe 11, at least three small impellers 10, a planetary wheel 19, a fixed column 20, a sun gear 21, and a planetary carrier 22. The lower end of the fixed column 20 is fixedly connected to the base 13, and the upper end is fixedly connected to the planetary carrier 22. Circumferentially symmetrical distribution; the planetary wheel 19 is set on the small impeller 10 and arranged above the planetary carrier 22, and the lower end of the small impeller 10 is connected to the base 13 through a bearing; the sun wheel 21 is fixed on the planetary carrier 22 and meshed with the planetary wheel 19; The phase inlet pipe 11 extends downwards to the top of the base through the planet carrier 22 and does not contact the base; the mass transfer device includes the outer packing layer 5 of the moving disk, the packing layer 6 of the static disk, the large impeller 7, the drum baffle 8, The inner packing layer 9 of the moving disk, the inner packing layer 9 of the moving disk, the drum baffle plate 8, the large impeller 7, and the outer packing layer 5 of the moving disk are fixed on the base 13 from the inside to the outside in sequence; the inner packing layer 9 of the moving disk is arranged on the small Outside the impeller 10, the drum-shaped baffle 8 is arranged between the inner packing layer 9 of the moving disk and the large impeller 7, the packing layer 6 of the static disk is arranged between the large impeller 7 and the outer packing layer 5 of the moving disk, and the packing layer 6 of the static disk is fixed On the top cover plate 12; the conical grinding fluid wheel includes a conical grinding fluid inner wheel 4 and a conical grinding fluid outer wheel 3, and the conical grinding fluid outer wheel 3 is set outside the conical grinding fluid inner wheel 4 and forms a relative rotation Cooperating relationship, the conical grinding liquid inner wheel 4 is fixed on the top cover plate 12, the conical grinding liquid outer wheel 3 is fixed on the base 13, and the liquid outlet hole at the upper end of the conical grinding liquid outer wheel 3 communicates with the inlet of the packing spiral tube 2;

Described separating and collecting mechanism comprises phase-splitting tank 14, elastic switch 15, collecting tank 16; The outlet of packing helical tube 2 communicates with phase-splitting tank 14, and collecting tank 16 is arranged below phase-splitting tank 14, and collecting tank 16 is made of two inside and outside. Composed of annular grooves, the inner discharge conduit 23-1 and the outer discharge conduit 23-2 are circumferentially intersected and evenly distributed on the inside and outside of the phase separation tank 14, the inner discharge conduit 23-1 and the inner groove 35 of the collection tank 16 The outer discharge conduit 23-2 is connected with the outer groove 36 of the collection tank 16, and the elastic switch 15 passes through the installation hole at the bottom of the phase separation tank 14 to connect with the inner discharge conduit 23-1 and the outer discharge conduit 23-2 respectively. Vertically intersect to realize the function of controlling the opening and closing of the inner discharge conduit 23-1 or the outer discharge conduit 23-2. The rotary switch 17 is arranged on the inside of the collection tank 16 and is in point contact with the elastic switch 15. The inner discharge conduit 23-1, Outer discharge conduit 23-2 can rotate angle.

The small impeller 10 is composed of a small impeller shaft 27 and a blade 28 fixed on the shaft with a triangular cross section.

The big impeller 7 is hollow cylindrical, on which there are two layers of louver blades 29, and the opening angle of the louver blades is 3 ^° ~5 ^° .

The drum-shaped baffle 8 is a hollow drum-shaped structure, and its middle part is a porous ring structure.

The conical grinding liquid outer wheel 3 is hollow truncated cone, and the axial grinding bars I31 are evenly distributed on its inner surface.

The conical grinding liquid inner wheel 4 is hollow truncated cone, and the axial grinding bars II 32 are evenly distributed on its outer surface.

The inner packing layer 9 of the moving disc, the packing layer 6 of the static disc, and the outer packing layer 5 of the moving disc are all composed of two annular porous plates inside and outside, and fillers are filled between the two annular porous plates. The porous plates are made of stainless steel or special steel. And other metal materials, the filler is polyvinyl chloride, polytetrafluoroethylene, epoxy resin, polypropylene and other non-metallic materials, the specific material of the filler is selected according to the specific operating temperature and medium, and the setting of the filler increases the mass transfer contact area.

The packing spiral pipe 2 is a spiral stainless steel metal hose or a corrosion-resistant plastic hose.

The collection tank 16 is composed of two annular tanks, the outer tank collects the heavy phase liquid, and the inner tank collects the light phase liquid.

When the utility model device is in use, turn on the power supply of the motor 33, adjust the rotor speed, the motor 33 drives the shaft 24 to rotate, and simultaneously drives the rotation of the base 13; after adjusting the pressure and flow rate of the two-phase liquid through the peristaltic pump, the two-phase liquid is respectively passed into After the two two-phase liquid inlet pipes 11, countercurrent collision is realized, and the collision flow is thrown to the inner packing layer 9 of the moving disk after being blocked by the turbulent flow of the small impeller 10 to change the trajectory, and the inner packing layer 9 of the moving disk expands Mass transfer area; under the action of centrifugal force, the mixed liquid is sprayed to the drum baffle 8, the liquid is collected at the bottom of the drum baffle 8, and sprayed outward through the middle nozzle hole to form secondary atomization. After the mixed liquid is thrown to the large impeller 7, because of the deflection effect of the louver blades 29, a negative pressure is generated, which makes the liquid tend to inward, forming a partial countercurrent collision; the mixed liquid is then thrown to the static disk packing layer 6, and finally Throw it on the outer packing layer 5 of the moving disk, and after the reaction, the liquid will fall due to the effect of gravity. Under the action of centrifugal force, the mixed liquid sprays to the conical grinding liquid inner wheel 4 and gathers at its bottom. Under the cooperation of the conical grinding liquid inner wheel 4 and the conical grinding liquid outer wheel 3, the mixed liquid is brought to the cone The upper end of the grinding liquid outer wheel 3 flows into the filler spiral tube 2 through the liquid outlet hole 30 at the upper end of the conical grinding liquid outer wheel 3 . The mixed liquid flows into the phase-splitting tank 14 after passing through the packing spiral tube 2, and the inside and outside of the phase-splitting tank 14 are evenly distributed with an inner discharge conduit 23-1, an outer discharge conduit 23-2, and an inner discharge conduit 23-1. It communicates with the inner tank 35 of the collecting tank 16, and the outer discharge conduit 23-2 communicates with the outer tank 36 of the collecting tank 16. Due to the difference in liquid density, the heavy phase fluid will flow into the outer tank of the collecting tank 16, and the light phase fluid will flow into the outer tank of the collecting tank 16. In the inner tank of the collecting tank 16, the final product is collected in the inner tank and the outer tank of the collecting tank 16, respectively.

In the utility model, four two-phase liquid inlet pipes 11 spray in pairs; the planetary wheel 19 drives the small impeller 10 to revolve and rotate;

The beneficial effects of the utility model are: 1. The separation of the two phases is taken into account while the extraction is efficient; 2. The multi-layer packing structure in the mass transfer device increases the mass transfer area of the two-phase liquid, and the complex packing layer structure makes the mixing more uniform , which prolongs the reaction time and improves the extraction rate; 3. The drum-shaped baffle with multi-spray holes plays the role of collecting liquid and spraying concentratedly, realizing the secondary atomization of two-phase mixing; 4. The louver blades of the large impeller Negative pressure will be generated under the condition of rotation, so that the liquid is sprayed inward to realize the second countercurrent collision; 5. The conical grinding liquid inner wheel can make the liquid rise along the cone surface by cooperating with the grinding rod of the conical grinding liquid outer wheel And flow into the spiral tube with packing from the hole at the upper end of the conical grinding liquid outer wheel to prolong the reaction time.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a labyrinth type supergravity liquid-liquid extraction separator of the present invention;

Fig. 2 is a schematic structural view of the feeding planetary impeller mixing device of the utility model;

Fig. 3 is a structural schematic diagram of the mass transfer device and the conical grinding wheel of the utility model;

Fig. 4 is a schematic diagram of the arrangement structure of the mass transfer device and the conical grinding wheel of the present invention;

Fig. 5 is a schematic cross-sectional structure diagram of the separation and collection mechanism of the present utility model;

Fig. 6 is a schematic structural view of the separation and collection mechanism of the utility model;

Fig. 7 is a structural schematic diagram of the small impeller of the present invention;

Fig. 8 is a structural schematic diagram of the large impeller of the present invention;

Fig. 9 is a top view structural schematic diagram of the large impeller of the present invention;

Fig. 10 is a structural schematic diagram of a drum-shaped baffle of the present invention;

Fig. 11 is a schematic diagram of the structure of the conical abrasive liquid outer wheel of the utility model;

Fig. 12 is a schematic diagram of the structure of the conical grinding fluid inner wheel of the utility model;

Fig. 13 is a structural schematic diagram of a packing spiral tube of the present invention;

Fig. 14 is a schematic diagram of the structure of the collection tank of the present invention;

In the figure: 1-housing, 2-filling spiral tube, 3-conical grinding liquid outer wheel, 4-conical grinding liquid inner wheel, 5-moving disc outer packing layer, 6-static disc packing layer, 7-big impeller, 8-Drum-shaped baffle, 9-Packing layer of moving disk, 10-Small impeller, 11-Two-phase liquid inlet pipe, 12-Top cover plate, 13-Base, 14-Phase separation tank, 15-Elastic switch, 16 -Collecting tank, 17-rotary switch, 18-bearing seat sleeve, 19-planetary wheel, 20-fixed column, 21-sun gear, 22-planetary frame, 23-1-inside discharge guide, 23-2-outside discharge Material conduit, 24-shaft, 25-small pulley, 26-synchronous belt, 27-small impeller shaft, 28-blade, 29-louver blade, 30-liquid outlet, 31-axial grinding bar Ⅰ, 32-axial Grinding bar II, 33-motor, 34-frame, 35-inner tank, 36-outer tank.

Specific implementation method

The utility model will be described in further detail below through the accompanying drawings and embodiments, but the protection scope of the utility model is not limited to the content described.

Embodiment 1: As shown in Figures 1 to 14, this labyrinth type supergravity liquid-liquid extraction separator includes a shell 1, a packing spiral tube 2, a mixing and mass transfer mechanism, a separation and collection mechanism, a top cover plate 12, a base 13, and a bearing seat Cover 18, shaft 24, motor 33; top cover plate 12 is fixed on the upper end of casing 1 by screw connection, base 13 is arranged in the cavity of casing 1 and its lower end is fixedly connected with shaft 24, and the mixing mass transfer mechanism is arranged on the base 13, The separation and collection mechanism is arranged at the lower end of the base 13 and connected with the lower end of the casing 1, the packing spiral tube 2 is fixed inside the casing 1, the bearing seat sleeve 18 and the rotary switch 17 are threaded auxiliary dynamic connections, the bearing seat sleeve 18 is set on the shaft 24, and the bearing The seat cover 18 is fixed on the frame 34 by screw connection, the motor 33 is installed on the frame 34 and is connected with the small pulley 25 on the shaft 24 through the timing belt 26, and drives the shaft 24 to rotate;

The mixing and mass transfer mechanism includes a feeding planetary impeller mixing device, a mass transfer device, and a conical grinding wheel. The mass transfer device is arranged between the feeding planetary impeller mixing device and the conical grinding wheel. The feeding planetary impeller mixing device It includes four two-phase liquid inlet pipes 11, three small impellers 10, a planetary wheel 19, a fixed column 20, a sun gear 21, and a planetary carrier 22. The lower end of the fixed column 20 is fixedly connected to the base 13, and the upper end is fixedly connected to the planetary carrier 22. Circumferentially symmetrical distribution; the planetary wheel 19 is set on the small impeller 10 and arranged above the planetary carrier 22, the lower end of the small impeller 10 is connected to the base 13 through a bearing; the sun wheel 21 is fixed on the planetary carrier 22 and meshed with the planetary wheel 19; The two-phase liquid inlet pipe 11 extends downwards to the top of the base through the planet carrier 22 and does not contact the base; the mass transfer device includes the outer packing layer 5 of the moving disk, the packing layer 6 of the static disk, the large impeller 7, and the drum baffle 8 1. The inner packing layer 9 of the moving disk, the inner packing layer 9 of the moving disk, the drum baffle 8, the large impeller 7, and the outer packing layer 5 of the moving disk are fixed on the base 13 from the inside to the outside in sequence; the inner packing layer 9 of the moving disk is arranged on Outside the small impeller 10, the drum-shaped baffle 8 is arranged between the inner packing layer 9 of the moving disk and the big impeller 7, the packing layer 6 of the static disk is arranged between the big impeller 7 and the outer packing layer 5 of the moving disk, and the packing layer 6 of the static disk It is fixed on the top cover plate 12; the conical grinding fluid wheel includes a conical grinding fluid inner wheel 4 and a conical grinding fluid outer wheel 3, and the conical grinding fluid outer wheel 3 is set outside the conical grinding fluid inner wheel 4 and forms a relative Rotation fit relationship, the conical abrasive liquid inner wheel 4 is fixed on the top cover plate 12, the conical abrasive liquid outer wheel 3 is fixed on the base 13, and the liquid outlet hole at the upper end of the conical abrasive liquid outer wheel 3 communicates with the inlet of the packing spiral tube 2;

Described separating and collecting mechanism comprises phase-splitting tank 14, elastic switch 15, collecting tank 16; The outlet of packing helical tube 2 communicates with phase-splitting tank 14, and collecting tank 16 is arranged below phase-splitting tank 14, and collecting tank 16 is made of two inside and outside. Composed of annular grooves, the inner discharge conduit 23-1 and the outer discharge conduit 23-2 are circumferentially intersected and evenly distributed on the inside and outside of the phase separation tank 14, the inner discharge conduit 23-1 and the inner groove 35 of the collection tank 16 The outer discharge conduit 23-2 is connected with the outer groove 36 of the collection tank 16, and the elastic switch 15 passes through the installation hole at the bottom of the phase separation tank 14 to connect with the inner discharge conduit 23-1 and the outer discharge conduit 23-2 respectively. Vertically intersect to realize the function of controlling the opening and closing of the inner discharge conduit 23-1 or the outer discharge conduit 23-2. The rotary switch 17 is arranged on the inside of the collection tank 16 and is in point contact with the elastic switch 15. The inner discharge conduit 23-1, Outer discharge conduit 23-2 can rotate angle.

The small impeller 10 is composed of a small impeller shaft 27 and a blade 28 with a triangular cross-section fixed on the shaft; the large impeller 7 is a hollow cylinder with two layers of louver blades 29 on it, and the opening angle of the louver blades is 3 ^° ~5 ^o ; the drum-shaped baffle 8 is a hollow drum-shaped structure, and its middle part is a porous ring structure; the conical grinding fluid outer wheel 3 is hollow and frustum-shaped, and the axial grinding bars I31 are evenly distributed on its inner surface, and the conical grinding fluid The top of the liquid outer wheel 3 has a liquid outlet hole 30 and communicates with the packing spiral tube 2; the conical grinding liquid inner wheel 4 is a hollow truncated cone, and the axial grinding bars II 32 are evenly distributed on its outer surface; Layer 9, static disk packing layer 6, and moving disk outer packing layer 5 are all composed of two annular porous plates inside and outside, and fillers are filled between the two annular porous plates. The porous plate is made of stainless steel, and the filler is polyvinyl chloride. The setting of the mass transfer contact area increases; the packing spiral tube 2 is a spiral stainless steel metal hose; the collection tank 16 is composed of two inner and outer annular grooves, the outer groove collects the heavy phase liquid, and the inner groove collects the light phase liquid.

When the utility model device is in use, turn on the power supply of the motor 33, adjust the rotor speed, the motor 33 drives the shaft 24 to rotate, and simultaneously drives the rotation of the base 13; after adjusting the pressure and flow rate of the two-phase liquid through the peristaltic pump, the two-phase liquid is respectively passed into After the two two-phase liquid inlet pipes 11, the countercurrent collision is realized, and the collision flow is thrown to the inner packing layer 9 of the moving disk after passing through the turbulent flow of the three small impellers 10 to change the trajectory, and then the inner packing layer 9 of the moving disk The mass transfer area is enlarged; under the action of centrifugal force, the mixed liquid is sprayed to the drum-shaped baffle 8, and the liquid is collected at the bottom of the drum-shaped baffle 8, and sprayed outward through the middle spray hole to form secondary atomization. After the mixed liquid is thrown to the large impeller 7, because of the deflection effect of the louver blades 29, a negative pressure is generated, which makes the liquid tend to inward, forming a partial countercurrent collision; the mixed liquid is then thrown to the static disk packing layer 6, and finally Throw it on the outer packing layer 5 of the moving disk, and after the reaction, the liquid will fall due to the effect of gravity. Under the action of centrifugal force, the mixed liquid sprays to the conical grinding liquid inner wheel 4 and gathers at its bottom. Under the cooperation of the conical grinding liquid inner wheel 4 and the conical grinding liquid outer wheel 3, the mixed liquid is brought to the cone The upper end of the grinding liquid outer wheel 3 flows into the filler spiral tube 2 through the liquid outlet hole 30 at the upper end of the conical grinding liquid outer wheel 3 . The mixed liquid flows into the phase-separation tank 14 after passing through the packing spiral tube 2, and the inside and outside of the phase-separation tank 14 are evenly distributed with an inner discharge conduit 23-1, an outer discharge conduit 23-2, and an inner discharge conduit 23-1. It communicates with the inner tank 35 of the collecting tank 16, and the outer discharge conduit 23-2 communicates with the outer tank 36 of the collecting tank 16. Due to the difference in liquid density, the heavy phase fluid will flow into the outer tank of the collecting tank 16, and the light phase fluid will flow into the outer tank of the collecting tank 16. In the inner tank of the collecting tank 16, the final product is collected in the inner tank and the outer tank of the collecting tank 16, respectively.

Because the liquid phase has experienced the repeated process of moving disk-static disk-moving disk in the rotor, it not only increases the mass transfer, heat transfer and reaction contact area, but also prolongs the reaction time of the two phases in the rotor appropriately.

Embodiment 2: The device structure of this embodiment is the same as that of Embodiment 1, the difference is that two pairs of small impellers are added, the shell radius of the packing spiral tube is increased, and other conditions remain unchanged.

Embodiment 3: The structure of the device in this embodiment is the same as that in Embodiment 1. The number of rings of the moving disk packing layer and the static disk packing layer in the mass transfer device is increased, the shell radius of the packing spiral tube is increased, and other conditions remain unchanged.

Claims (8)

1. A labyrinth type supergravity liquid-liquid extraction separator, characterized in that it includes a shell (1), a packing spiral tube (2), a mixing and mass transfer mechanism, a separation and collection mechanism, a top cover plate (12), a base (13 ), bearing sleeve (18), shaft (24), motor (33); the top cover plate (12) is connected and fixed on the upper end of the shell (1), and the base (13) is set in the cavity of the shell (1) and its lower end It is fixedly connected with the shaft (24), the mixing mass transfer mechanism is set on the base (13), the separation and collection mechanism is set at the lower end of the base (13) and connected with the lower end of the shell (1), and the packing spiral tube (2) is fixed on the shell (1 ), the bearing sleeve (18) and the rotary switch (17) are threaded auxiliary connection, the shaft (24) is connected with the bearing sleeve (18) through a pair of thrust bearings, and the bearing sleeve (18) is connected and fixed on the frame (34), the motor (33) is installed on the frame (34) and connected with the small pulley (25) on the shaft (24) through the timing belt (26); The mixing and mass transfer mechanism includes a feeding planetary impeller mixing device, a mass transfer device, and a conical grinding wheel. The mass transfer device is arranged between the feeding planetary impeller mixing device and the conical grinding wheel. The feeding planetary impeller mixing device Including two-phase liquid inlet pipe (11), small impeller (10), planetary gear (19), fixed column (20), sun gear (21), planet carrier (22), lower end of fixed column (20) and base (13 ) is fixedly connected, the upper end is fixedly connected with the planet carrier (22), and is distributed symmetrically around the circumference; the planetary wheel (19) is set on the small impeller (10) and arranged above the planet carrier (22), and the lower end of the small impeller (10) passes through the bearing Connected with the base (13); the sun gear (21) is fixed on the planetary carrier (22) and meshed with the planetary gear (19); the two-phase liquid inlet pipe (11) extends downward to the base through the planetary carrier (22) And not in contact with the base; the mass transfer device includes the outer packing layer of the moving disk (5), the packing layer of the static disk (6), the large impeller (7), the drum-shaped baffle (8), the inner packing layer of the moving disk (9 ), the inner packing layer of the moving disk (9), the drum-shaped baffle (8), the large impeller (7), and the outer packing layer of the moving disk (5) are fixed on the base (13) in turn from the inside to the outside; the inner packing of the moving disk The layer (9) is arranged outside the small impeller (10), the drum-shaped baffle (8) is arranged between the packing layer (9) in the moving disk and the large impeller (7), and the packing layer (6) of the static disk is arranged on the large impeller Between (7) and the outer packing layer (5) of the moving disc, the static disc packing layer (6) is fixed on the top cover plate (12); the conical grinding liquid wheel includes the conical grinding liquid inner wheel (4) and The outer conical grinding wheel (3), the outer conical grinding wheel (3) is set outside the inner conical grinding wheel (4) and forms a relative rotation fit relationship, the inner conical grinding wheel (4) is fixed on the top cover plate On (12), the conical grinding liquid outer wheel (3) is fixed on the base (13), and the liquid outlet hole at the upper end of the conical grinding liquid outer wheel (3) communicates with the inlet of the packing spiral tube (2); The separation and collection mechanism includes a phase separation tank (14), an elastic switch (15), and a collection tank (16); the outlet of the packing spiral tube (2) communicates with the phase separation tank (14), and the collection tank (16) is arranged on the separation tank (16). Below the phase tank (14), the collection tank (16) is composed of two inner and outer annular grooves, the inner discharge conduit (23-1) and the outer discharge conduit (23-2) are circumferentially intersected and evenly distributed in the phase separation tank ( 14) inside and outside, the inner discharge conduit (23-1) communicates with the inner tank (35) of the collection tank (16), and the outer discharge conduit (23-2) communicates with the outer tank (35) of the collection tank (16). 36) are connected with each other, and the elastic switch (15) passes through the installation hole at the bottom of the phase separation tank (14) to vertically intersect with the inner discharge conduit (23-1) and the outer discharge conduit (23-2) to realize the control of the inner discharge The conduit (23-1) or the outer discharge conduit (23-2) has an opening and closing function, and the rotary switch (17) is arranged inside the collection tank (16) and is in point contact with the elastic switch (15). 2. The labyrinth type supergravity liquid-liquid extraction separator according to claim 1, characterized in that the small impeller (10) is composed of a small impeller shaft (27) and a blade (28) with a triangular cross-section fixed on the shaft. 3. The labyrinth type supergravity liquid-liquid extraction separator according to claim 1 or 2, characterized in that: the large impeller (7) is hollow cylindrical, with two layers of louver blades (29) on it, and the louver blades The opening angle is 3 ^o -5 ^o . 4. The labyrinth-type supergravity liquid-liquid extraction separator according to claim 1 or 2, characterized in that: the drum-shaped baffle (8) is a hollow drum-shaped structure, and its middle part is a porous ring structure. 5. The labyrinth-type supergravity liquid-liquid extraction separator according to claim 4, characterized in that: the conical grinding liquid outer wheel (3) is a hollow truncated conical shape, and the axial grinding bars I (31) are evenly distributed on its inner surface , the top of the conical grinding liquid outer wheel (3) has a liquid outlet hole (30) and communicates with the packing spiral pipe (2). 6. The labyrinth type ultra-gravity liquid-liquid extraction separator according to claim 5, characterized in that: the conical grinding liquid inner wheel (4) is hollow frustum-shaped, and the axial grinding bar II (32) is uniform distributed on its outer surface. 7. The labyrinth type supergravity liquid-liquid extraction separator according to claim 6, characterized in that: the inner packing layer (9) of the moving disk, the packing layer (6) of the static disk and the outer packing layer (5) of the moving disk are all made of The inner and outer two annular perforated plates are composed of two annular perforated plates, and fillers are filled between the two annular perforated plates, and the fillers are polyvinyl chloride, polytetrafluoroethylene, epoxy resin or polypropylene. 8. The labyrinth type supergravity liquid-liquid extraction separator according to claim 7, characterized in that: the filler spiral tube (2) is a spiral stainless steel metal hose or a corrosion-resistant plastic hose, and the tube is filled with filler.