Demulsification, extraction and impurity removal integrated device

Abstract

The utility model provides a demulsification, extraction and impurity removal integrated device. The milk extraction and impurity removal integrated device comprises a tower body and a stirring assembly. An extraction demulsification area, an extraction phase separation area and an impurity removal area which are communicated in sequence are arranged in the tower body, and a liquid inlet communicated with the extraction demulsification area is formed in the top of the tower body. The stirring assembly comprises a driving motor, a stirring outer shaft, a first stirring paddle, a second stirring paddle and a third stirring paddle, the driving motor is arranged at the top of the tower body, one end of the stirring outer shaft is connected with the power output end of the driving motor, and the other end of the stirring outer shaft extends into the tower body; the first stirring paddle, the second stirring paddle and the third stirring paddle are all arranged at the other end of the stirring outer shaft, the first stirring paddle is located in the extraction demulsification area, the second stirring paddle is located in the extraction phase separation area, and the third stirring paddle is located in the impurity removal area.

Description

Technical Field

[0001] The present disclosure relates to the technical field of phosphoric acid preparation, and in particular to an integrated demulsification, extraction and impurity removal device. Background Art

[0002] Phosphoric acid is the core of the phosphorus chemical industry. In industry, wet-process phosphoric acid with low energy consumption and low pollution is often used for preparation. The traditional phosphoric acid preparation steps are to first demulsify the mother liquor, then extract the demulsified mother liquor, and finally filter and remove impurities from the insoluble matter in the extract. Therefore, traditional phosphoric acid preparation equipment requires demulsification devices, extraction and phase separation devices, and filtering and impurity removal devices, which will undoubtedly increase the equipment footprint and cost investment.

[0003] However, extraction is the most important process in the production of refined phosphoric acid, and its effect directly affects the economic indicators and product performance of the entire process chain. In the extraction process, in order to improve the extraction effect, diluents and extractants are added to form an organic phase to extract phosphoric acid, which will inevitably form an "oil-in-water" phase with the acid phase.

[0004] (W / O) type "wall bubbles", and the insoluble matter in the acid further aggravates this phenomenon, eventually forming emulsions, greatly reducing the extraction effect. Most scholars consider adding solvents or adding inorganic salt solutions for forced demulsification, which will not only increase the input of reagents, but also introduce new substances, affecting the extraction effect of phosphoric acid. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an integrated demulsification, extraction and impurity removal device that can reduce the floor space and cost of the device and has a better extraction effect.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] An integrated demulsification, extraction and impurity removal device comprises a tower body and a stirring component;

[0008] The tower body is provided with an extraction demulsification zone, an extraction phase separation zone and an impurity removal zone which are connected in sequence, and the top of the tower body is provided with a liquid inlet which is connected with the extraction demulsification zone;

[0009] The stirring assembly includes a driving motor, a stirring outer shaft, a first stirring paddle, a second stirring paddle and a third stirring paddle. The driving motor is arranged at the top of the tower body. One end of the stirring outer shaft is connected to the power output end of the driving motor, and the other end of the stirring outer shaft extends into the tower body. The first stirring paddle, the second stirring paddle and the third stirring paddle are all arranged on the other end of the stirring outer shaft. The first stirring paddle is located in the extraction demulsification zone, the second stirring paddle is located in the extraction phase separation zone, and the third stirring paddle is located in the impurity removal zone.

[0010] In one embodiment, the first stirring paddle includes a first stirring shaft sleeve and a plurality of first stirring blades disposed on the first stirring shaft sleeve, the first stirring shaft sleeve is sleeved on the stirring outer shaft, and the first stirring shaft sleeve is located in the extraction and demulsification zone.

[0011] In one embodiment, the second stirring paddle includes a second stirring shaft sleeve and a plurality of second stirring blades disposed on the second stirring shaft sleeve, the second stirring shaft sleeve is sleeved on the stirring outer shaft, and the second stirring shaft sleeve is located in the extraction phase separation zone.

[0012] In one embodiment, the third stirring paddle includes a third stirring shaft sleeve and a plurality of third stirring blades arranged on the third stirring shaft sleeve, the third stirring shaft sleeve is sleeved on the stirring outer shaft, and the third stirring shaft sleeve is located in the impurity removal area.

[0013] In one embodiment, the wheelbase of the first stirring blade is greater than the wheelbase of the second stirring blade; and the wheelbase of the second stirring blade is greater than the wheelbase of the third stirring blade.

[0014] In one embodiment, the outer stirring shaft is provided with a hollow through hole;

[0015] The stirring assembly also includes a stirring inner shaft and a spiral ribbon stirrer, one end of the stirring inner shaft is arranged in the hollow through hole, the other end of the stirring inner shaft extends into the impurity removal area, and the spiral ribbon stirrer is arranged on the other end of the stirring inner shaft.

[0016] In one of the embodiments, the side wall of the tower body is provided with an ester phase liquid outlet connected to the extraction and demulsification zone, and the ester phase liquid outlet is used to be connected to an ester phase liquid discharge component.

[0017] In one of the embodiments, the side wall of the tower body is provided with an acid phase liquid outlet connected to the impurity removal zone, and the acid phase liquid outlet is used to be connected to an acid phase liquid discharge component.

[0018] In one of the embodiments, a sewage outlet is provided at the bottom of the tower body, and the sewage outlet is used to connect to the sewage discharge component.

[0019] In one of the embodiments, the integrated demulsification, extraction and impurity removal device further comprises a flow stabilizing plate, and the flow stabilizing plate is arranged on the periphery of the inner wall of the tower body.

[0020] In one of the embodiments, the integrated demulsification, extraction and impurity removal device further includes a support frame, and the support frame is connected to the tower body.

[0021] Compared with the prior art, the present invention has the following advantages, including but not limited to:

[0022] 1. The mixed phase solution enters the tower body through the liquid inlet. Since the ester phase and the acid phase have different gravities, the ester phase will be located above the mixed phase solution, that is, in the extraction and demulsification zone. The driving motor is controlled to drive the stirring outer shaft to rotate, and the mixed phase solution is stirred and extracted by the first stirring paddle, the second stirring paddle and the third stirring paddle. During multiple extraction processes, a large number of water-in-oil bubbles will accumulate toward the inner wall and the phase separation layer of the tower body. The first stirring paddle is located in the extraction and demulsification zone and the wheelbase of the first stirring paddle is the largest. When the first stirring paddle is stirring, it can avoid the accumulation of water-in-oil bubbles toward the inner wall and the phase separation layer of the tower body, so that the water-in-oil bubbles return to the ester phase for stirring and demulsification, thereby improving the extraction effect of the demulsification, extraction and impurity removal integrated device.

[0023] 2. Since the wheelbase of the first stirring blade is greater than that of the second stirring blade, and the wheelbase of the second stirring blade is greater than that of the third stirring blade, that is, the first stirring paddle, the second stirring paddle and the third stirring paddle with different wheelbases form concentric rotation trajectories of different diameters at the same rotation rate of the stirring outer shaft, so that different phases are layered under the action of centrifugal force and centripetal force. Specifically, the wheelbase of the third stirring paddle is the smallest, and the rotation speed of the third stirring paddle is the fastest at the same frequency of the driving motor, which can accelerate the sedimentation of sludge and insoluble substances in the mixed phase, so that the sludge and insoluble substances in the mixed phase are settled to the bottom of the tower body, and the wheelbase of the first stirring paddle is greater than that of the second stirring paddle, which can well separate the ester phase and the acid phase, so as to avoid the situation where the insoluble substances aggravate the emulsification, and further improve the extraction effect of the integrated demulsification, extraction and impurity removal device.

[0024] 3. Separation between different phases can be achieved by setting stirring paddles with different wheelbases. At the same time, sludge and insoluble matter can be settled to the bottom of the tower to achieve the impurity removal function. That is, the functions of demulsification, extraction and impurity removal are realized in the same device, reducing the footprint and cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of an integrated demulsification, extraction and impurity removal device in one embodiment;

[0027] Figure 2 for Figure 1 The schematic diagram of the internal structure of the integrated demulsification, extraction and impurity removal device shown;

[0028] Figure 3 for Figure 1 The motion trajectory diagram of the stirring component of the integrated demulsification, extraction and impurity removal device shown;

[0029] Reference numerals: demulsification, extraction and impurity removal integrated device (10); tower body (100); liquid inlet (102); ester phase liquid outlet (104); acid phase liquid outlet (106); sewage outlet (108); extraction demulsification zone (110); extraction phase separation zone (120); impurity removal zone (130); stirring assembly (200); driving motor (210); stirring outer shaft (220); hollow through hole (2202); first stirring paddle (230); first stirring shaft sleeve (2310); first stirring blade (2320); second stirring paddle (240); second stirring shaft sleeve (2410); second stirring blade (2420); third stirring paddle (250); third stirring shaft sleeve (2510); third stirring blade (2520); stirring inner shaft (260); spiral ribbon agitator (270); flow stabilizing plate (300); support frame (400). DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] See also Figures 1 to 3 In order to better understand the integrated demulsification, extraction and impurity removal device 10 disclosed in the present invention, the integrated demulsification, extraction and impurity removal device 10 is further explained below:

[0034] The demulsification, extraction and impurity removal integrated device 10 of one embodiment includes a tower body 100 and a stirring assembly 200. The tower body 100 is provided with an extraction demulsification zone 110, an extraction phase separation zone 120 and an impurity removal zone 130 which are connected in sequence. The top of the tower body 100 is provided with a liquid inlet 102 which is connected to the extraction demulsification zone 110. The stirring assembly 200 includes a driving motor 210, a stirring outer shaft 220, a first stirring paddle 230, a second stirring paddle 240 and a third stirring paddle 250. The driving motor 210 is arranged at the top of the tower body 100. One end of the stirring outer shaft 220 is connected to the power output end of the driving motor 210, and the other end of the stirring outer shaft 220 extends into the tower body 100. The first stirring paddle 230, the second stirring paddle 240 and the third stirring paddle 250 are all arranged on the other end of the stirring outer shaft 220. The first stirring paddle 230 is located in the extraction demulsification zone 110, the second stirring paddle 240 is located in the extraction phase separation zone 120, and the third stirring paddle 250 is located in the impurity removal zone 130.

[0035] In this embodiment, the wheelbase of the first stirring paddle 230 is greater than the wheelbase of the second stirring paddle 240 , and the wheelbase of the second stirring paddle 240 is greater than the wheelbase of the third stirring paddle 250 .

[0036] Furthermore, the mixed phase solution enters the tower body 100 through the liquid inlet 102. Since the ester phase and the acid phase have different gravities, the ester phase will be located above the mixed phase solution, that is, located in the extraction and demulsification zone 110. The driving motor 210 is controlled to drive the stirring outer shaft 220 to rotate, and the mixed phase solution is stirred and extracted by the first stirring paddle 230, the second stirring paddle 240 and the third stirring paddle 250. During the multiple extraction processes, a large number of water-in-oil type bubbles will accumulate toward the inner wall and the phase separation layer of the tower body 100. The first stirring paddle 230 is located in the extraction and demulsification zone 110 and the wheelbase of the first stirring paddle 230 is the largest. When the first stirring paddle 230 is stirring, the water-in-oil type bubbles can be prevented from accumulating toward the inner wall and the phase separation layer of the tower body 100, so that the water-in-oil type bubbles return to the ester phase for stirring and demulsification, thereby improving the extraction effect of the demulsification, extraction and impurity removal integrated device 10.

[0037] Furthermore, the first stirring paddle 230, the second stirring paddle 240 and the third stirring paddle 250 with different wheelbases form concentric rotation trajectories of different diameters at the same rotation rate of the stirring outer shaft 220, so that different phases are separated under the action of centrifugal force and centripetal force. Specifically, the wheelbase of the third stirring paddle 250 is the smallest, and the rotation speed of the third stirring paddle 250 is the fastest at the same frequency of the driving motor 210, which can accelerate the sedimentation of sludge and insoluble substances in the mixed phase, so that the sludge and insoluble substances in the mixed phase are settled to the bottom of the tower body 100, and the wheelbase of the first stirring paddle 230 is greater than the wheelbase of the second stirring paddle 240, which can well separate the ester phase and the acid phase, so as to avoid the insoluble substances from aggravating emulsification, and further improve the extraction effect of the demulsification extraction and impurity removal integrated device 10.

[0038] Furthermore, by setting agitators with different wheelbases, separation between different phases can be achieved, and at the same time, sludge and insoluble matter can be settled to the bottom of the tower body 100 to achieve the impurity removal function, that is, the functions of demulsification, extraction and impurity removal are achieved in the same device, reducing the footprint and cost of the device.

[0039] It should be noted that at the same frequency, the wheelbase of the stirring paddle is inversely proportional to the rotation speed, that is, the larger the wheelbase, the slower the rotation speed; the smaller the wheelbase, the faster the rotation speed. The wheelbase of the first stirring paddle 230 is relatively large. Although the speed is slow, the coverage is wide, and the organic phase is disturbed "slowly and completely", which inhibits the water-in-oil type bubbles from gathering to the inner wall of the tower body 100, so that they return to the ester phase and collide with each other to achieve demulsification, making the extraction reaction more complete. Furthermore, the stirring paddles with different wheelbases from top to bottom form an "inverted cone" motion trajectory, so that the sludge and insoluble matter are deposited at the bottom of the tower body 100 after the stirring is completed, avoiding the occurrence of emulsification.

[0040] It should be noted that the wheelbase here refers to the straight-line distance from the outermost end of the stirring paddle to the surface of the stirring outer shaft 220 .

[0041] like Figure 2 and Figure 3As shown, in one embodiment, the first stirring paddle 230 includes a first stirring sleeve 2310 and a plurality of first stirring blades 2320 disposed on the first stirring sleeve 2310, the first stirring sleeve 2310 is sleeved on the stirring outer shaft 220, and the first stirring sleeve 2310 is located in the extraction and demulsification zone 110. It can be understood that the plurality of first stirring blades 2320 are fixed on the stirring outer shaft 220 through the first stirring sleeve 2310, that is, the stirring outer shaft 220 drives the plurality of first stirring blades 2320 to stir and demulsify the mixed phase solution. Further, since the ester phase contains an extractant and a diluent, after multiple extractions, the diluent in the organic phase will be "dissociated", the surface tension of the water-oil interface will change, and a large number of bubbles will accumulate toward the tower wall and the phase separation layer to form water-in-oil W / O type bubbles. In this embodiment, the first stirring blade 2320 is arranged parallel to the stirring outer shaft 220, that is, the first stirring blade 2320 rotates parallel to the stirring outer shaft 220 instead of radially cutting the mixed phase liquid, which can effectively inhibit the "dissociation" of the diluent from the organic phase and improve the extraction effect of phosphoric acid.

[0042] like Figure 2 and Figure 3 As shown, in one embodiment, the second stirring paddle 240 includes a second stirring shaft sleeve 2410 and a plurality of second stirring blades 2420 disposed on the second stirring shaft sleeve 2410, the second stirring shaft sleeve 2410 is sleeved on the stirring outer shaft 220, and the second stirring shaft sleeve 2410 is located in the extraction phase separation zone 120. It can be understood that the plurality of second stirring blades 2420 are fixed on the stirring outer shaft 220 through the second stirring shaft sleeve 2410, that is, the stirring outer shaft 220 drives the plurality of second stirring blades 2420 to stir and extract the mixed phase solution, and cooperates with the plurality of first stirring blades 2320 to form stratification of the ester phase and the acid phase, thereby improving the extraction effect of phosphoric acid.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the third stirring paddle 250 includes a third stirring shaft sleeve 2510 and a plurality of third stirring blades 2520 disposed on the third stirring shaft sleeve 2510, the third stirring shaft sleeve 2510 is sleeved on the stirring outer shaft 220, and the third stirring shaft sleeve 2510 is located in the impurity removal zone 130. It can be understood that the plurality of third stirring blades 2520 are fixed on the stirring outer shaft 220 through the third stirring shaft sleeve 2510, that is, the stirring outer shaft 220 drives the plurality of third stirring blades 2520 to stir and remove impurities from the mixed phase solution, and cooperates with the plurality of second stirring blades 2420 to make the sludge and insoluble substances in the acid phase settle to the bottom of the tower body 100, thereby avoiding the occurrence of emulsification and improving the extraction effect of phosphoric acid.

[0044] like Figure 2 and Figure 3 As shown, in one embodiment, the wheelbase of the first stirring blade 2320 is greater than the wheelbase of the second stirring blade 2420; the wheelbase of the second stirring blade 2420 is greater than the wheelbase of the third stirring blade 2520. It can be understood that by setting stirring blades of different sizes to respectively achieve demulsification, phase separation and impurity removal functions, the extraction effect is improved while reducing the footprint and cost of the device.

[0045] It should be noted that the wheelbase here refers to the straight-line distance from the outermost end of the stirring blade to the surface of the stirring outer shaft 220 .

[0046] like Figure 2 and Figure 3 As shown, in one embodiment, the stirring outer shaft 220 is provided with a hollow through hole 2202. The stirring assembly 200 further includes a stirring inner shaft 260 and a ribbon stirrer 270, one end of the stirring inner shaft 260 is arranged in the hollow through hole, the other end of the stirring inner shaft 260 extends into the impurity removal zone 130, and the ribbon stirrer 270 is arranged on the other end of the stirring inner shaft 260. It can be understood that the stirring inner shaft 260 is fixedly arranged in the hollow through hole 2202 of the stirring outer shaft 220, that is, the stirring outer shaft 220 rotates while driving the stirring inner shaft 260 to rotate, and then the ribbon stirrer 270 on the stirring inner shaft 260 rotates in the impurity removal zone 130 to form a "vortex" motion trajectory, which can accelerate the sedimentation of sludge and insoluble substances in the acid phase, so that the sludge and insoluble substances are settled at the bottom of the tower body 100, thereby effectively improving the extraction effect of phosphoric acid.

[0047] like Figure 2 As shown, in one embodiment, the side wall of the tower body 100 is provided with an ester phase outlet 104 connected to the extraction demulsification zone 110, and the ester phase outlet 104 is used to communicate with the ester phase discharge assembly. It can be understood that when the drive motor 210 stops outputting, the mixed phase liquid is now phase-separated, and the ester phase is located in the extraction demulsification zone 110 and is discharged from the ester phase outlet 104 through the ester phase discharge assembly.

[0048] like Figure 2 As shown, in one embodiment, the side wall of the tower body 100 is provided with an acid phase outlet 106 connected to the impurity removal zone 130, and the acid phase outlet 106 is used to communicate with the acid phase drainage component. It can be understood that when the drive motor 210 stops outputting, the mixed phase liquid is now phase-separated, and the acid phase extract is located in the extraction phase separation zone 120 and the impurity removal zone 130 and is discharged from the acid phase outlet 106 through the ester acid drainage component, so that a phosphoric acid extract with a good extraction effect can be obtained.

[0049] like Figure 2As shown, in one embodiment, a sewage outlet 108 is provided at the bottom of the tower body 100, and the sewage outlet 108 is used to communicate with the sewage discharge assembly. It can be understood that the sludge and insoluble substances settled at the bottom of the tower body 100 are first discharged from the sewage outlet 108 through the sewage discharge assembly, and then the output of the driving motor 210 is stopped, that is, the "vortex" motion trajectory of the ribbon agitator 270 provides a driving force to move the sludge and insoluble substances, so that the sludge and insoluble substances are always settled at the bottom of the tower body 100, so that the demulsification extraction and impurity removal integrated device 10 has a better impurity removal effect.

[0050] like Figure 2 As shown, in one embodiment, the demulsification extraction and impurity removal integrated device 10 further includes a flow stabilizing plate 300, which is disposed on the inner wall periphery of the tower body 100. It can be understood that the flow stabilizing plate 300 makes the first stirring paddle 230, the second stirring paddle 240 and the third stirring paddle 250 run more smoothly.

[0051] like Figure 1 and Figure 2 As shown, in one embodiment, the demulsification, extraction and impurity removal integrated device 10 further includes a support frame 400, and the support frame 400 is connected to the tower body 100. It can be understood that the support frame 400 plays a fixing effect and can fix the tower body 100 well.

[0052] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. An integrated demulsification, extraction and impurity removal device (10), characterized in that: It comprises a tower body (100) and a stirring assembly (200); The tower body (100) is provided with an extraction demulsification zone (110), an extraction phase separation zone (120) and an impurity removal zone (130) which are connected in sequence, and the top of the tower body (100) is provided with a liquid inlet (102) which is connected with the extraction demulsification zone (110); The stirring assembly (200) comprises a driving motor (210), a stirring outer shaft (220), a first stirring paddle (230), a second stirring paddle (240) and a third stirring paddle (250); the driving motor (210) is arranged at the top of the tower body (100); one end of the stirring outer shaft (220) is connected to the power output end of the driving motor (210); the other end of the stirring outer shaft (220) extends into the tower body (100); the first stirring paddle (230), the second stirring paddle (240) and the third stirring paddle (250) are all arranged on the stirring outer shaft (220); the first stirring paddle (230) is located in the extraction demulsification zone (110); the second stirring paddle (240) is located in the extraction phase separation zone (120); and the third stirring paddle (250) is located in the impurity removal zone (130).

2. The integrated demulsification, extraction and impurity removal device (10) according to claim 1 is characterized in that: The first stirring paddle (230) includes a first stirring shaft sleeve (2310) and a plurality of first stirring blades (2320) arranged on the first stirring shaft sleeve (2310), the first stirring shaft sleeve (2310) is sleeved on the stirring outer shaft (220), and the first stirring shaft sleeve (2310) is located in the extraction and demulsification zone (110).

3. The integrated demulsification, extraction and impurity removal device (10) according to claim 2 is characterized in that: The second stirring paddle (240) includes a second stirring shaft sleeve (2410) and a plurality of second stirring blades (2420) arranged on the second stirring shaft sleeve (2410), the second stirring shaft sleeve (2410) is sleeved on the stirring outer shaft (220), and the second stirring shaft sleeve (2410) is located in the extraction phase separation zone (120).

4. The integrated demulsification, extraction and impurity removal device (10) according to claim 3 is characterized in that: The third stirring paddle (250) comprises a third stirring shaft sleeve (2510) and a plurality of third stirring blades (2520) arranged on the third stirring shaft sleeve (2510); the third stirring shaft sleeve (2510) is sleeved on the stirring outer shaft (220); and the third stirring shaft sleeve (2510) is located in the impurity removal area (130).

5. The integrated demulsification, extraction and impurity removal device (10) according to claim 4 is characterized in that: The wheelbase of the first stirring blade (2320) is greater than the wheelbase of the second stirring blade (2420); and / or the wheelbase of the second stirring blade (2420) is greater than the wheelbase of the third stirring blade (2520).

6. The integrated demulsification, extraction and impurity removal device (10) according to claim 1, characterized in that: The stirring outer shaft (220) is provided with a hollow through hole (2202); The stirring assembly (200) further includes a stirring inner shaft (260) and a spiral-belt stirrer (270), wherein one end of the stirring inner shaft (260) is disposed in the hollow through hole, and the other end of the stirring inner shaft (260) extends into the impurity removal zone (130), and the spiral-belt stirrer (270) is disposed on the other end of the stirring inner shaft (260).

7. The integrated demulsification, extraction and impurity removal device (10) according to claim 1, characterized in that: The side wall of the tower body (100) is provided with an ester phase liquid outlet (104) which is in communication with the extraction and demulsification zone (110), and the ester phase liquid outlet (104) is used to be in communication with an ester phase liquid discharge component.

8. The integrated demulsification, extraction and impurity removal device (10) according to claim 1, characterized in that: The side wall of the tower body (100) is provided with an acid phase liquid outlet (106) which is in communication with the impurity removal zone (130), and the acid phase liquid outlet (106) is used to be in communication with an acid phase liquid discharge component.

9. The integrated demulsification, extraction and impurity removal device (10) according to claim 1, characterized in that: The bottom of the tower body (100) is provided with a sewage outlet (108), and the sewage outlet (108) is used for communicating with a sewage discharge component.

10. The integrated demulsification, extraction and impurity removal device (10) according to claim 1, characterized in that: The demulsification, extraction and impurity removal integrated device (10) further comprises a flow stabilizing plate (300), wherein the flow stabilizing plate (300) is arranged on the inner wall periphery of the tower body (100); and / or, The integrated demulsification, extraction and impurity removal device (10) further comprises a support frame (400), wherein the support frame (400) is connected to the tower body (100).

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