CN219481638U - Liquid-liquid and suspension solid-liquid separation extraction workstation - Google Patents

Abstract

The utility model relates to a liquid-liquid and suspension solid-liquid separation extraction workstation, which comprises a plurality of extraction tanks connected in sequence, wherein a light-heavy phase feeding port is arranged at the first end of each extraction tank, a discharging device is arranged at the second end of each extraction tank, a mixing device is arranged in the extraction tank close to the first end, a plurality of grid plates arranged in parallel are arranged between the mixing device and the discharging device, each mixing device comprises a motor, a rotating shaft and a mixing cavity, the rotating shaft is connected with an output shaft of the motor and extends into the mixing cavity, an impeller assembly is connected to the lower end of the rotating shaft, and each discharging device comprises a heavy phase discharging structure, a light phase discharging structure and a third phase turbid liquid discharging structure. Therefore, the separation device has simple structure and reasonable design, the extraction tank has a sealing structure, and the good sealing property ensures that the heavy phase and the light phase cannot be exposed in the environment, so that the environmental protection problem and the safety problem of the box-type extraction tank can be solved; the elliptic cylindrical tank body is beneficial to mixing and flowing of liquid; and the suspension can be independently discharged through the third phase discharging structure.

Description

Liquid-liquid and suspension solid-liquid separation extraction workstation

Technical Field

The utility model relates to the technical field of extraction separation, in particular to a liquid-liquid and suspension solid-liquid separation extraction workstation.

Background

Liquid-liquid extraction is to use the difference of solubility or partition coefficient of substances in two mutually insoluble (or slightly soluble) liquids to transfer the substances from one liquid to the other liquid, and to separate and extract most of the target substances through repeated extraction. In general, a substance having a high density is called a heavy phase, and a substance having a low density is called a light phase. The extraction process is divided into two types, wherein one is that only physical transfer occurs between substances in heavy phase and light phase, for example, after the organic synthesis reaction is finished, the extraction agent (toluene, ethyl acetate, diethyl ether and the like) is used for carrying out processes of co-extraction, water washing and the like on organic matters in the reaction liquid; one is that the chemical reaction between the related substances in the heavy phase and the light phase is firstly carried out, then the new product is transferred between the two phases, such as nickel, cobalt, copper, rare earth, indium, lithium and other elements in hydrometallurgy industry, and the enrichment, separation and purification of partial isotopes are carried out.

At present, more liquid-liquid mixing extraction separation equipment is used in the market, namely an extraction tank and a centrifugal extractor. The extraction tank is box structure, and box structure is bulky, and required extractant and feed liquid volume are big, and the waste liquid volume of final production is big, causes the cost big, and has a large amount of right angle dead angles, is unfavorable for mixing and the flow of liquid, and extraction efficiency is low and the leakproofness is poor. The centrifugal extractor has good extraction and separation effects, but has high price, is only suitable for liquid-liquid extraction and separation, and is easy to cause equipment blockage and damage when solid phase is separated out in liquid-liquid, and the separation effect is influenced.

Therefore, how to overcome the defects in the conventional extraction technology is an important technical problem to be solved by the person skilled in the art.

Disclosure of Invention

The utility model provides a liquid-liquid and suspension solid-liquid separation extraction workstation, which overcomes the defects in the traditional extraction technology.

The liquid-liquid and suspension solid-liquid separation extraction workstation adopts the following technical scheme:

the utility model provides a liquid-liquid, suspension solid-liquid separation extraction workstation, includes a plurality of extraction tanks that connect gradually, every the first end of extraction tank is equipped with light and heavy looks feed inlet, second end and is equipped with discharging device, is close to first end be equipped with mixing arrangement in the extraction tank, mixing arrangement with be equipped with a plurality of parallel slope setting's grid board between the discharging device, mixing arrangement includes motor, pivot and mixed cavity, mixed cavity upper end with motor connection, middle part are equipped with the discharge gate, bottom through the pipeline with light and heavy looks feed inlet intercommunication, the pivot with the output shaft of motor stretches into in the mixed cavity, just the lower extreme of pivot is connected with impeller subassembly, discharging device follows from first end to the direction of second end includes heavy looks ejection of compact structure, light looks ejection of compact structure and third phase turbid liquid ejection of compact structure, heavy looks ejection of compact structure with light looks ejection of compact structure all with establish the light and heavy looks discharge gate intercommunication of the second end lower part of the extraction tank.

Preferably, the impeller assembly comprises an upper static impeller, a middle movable impeller and a lower static impeller, wherein the upper static impeller and the lower static impeller are fixed in the mixing cavity, and the movable impeller is arranged at the lower end of the rotating shaft.

Preferably, the heavy phase discharging structure is set to be a heavy phase adjusting pipe, the heavy phase adjusting pipe comprises an outer pipe and an inner pipe, the upper part of the outer pipe extends out of the extraction tank, the bottom end of the outer pipe is fixed on the inner bottom wall of the extraction tank, a first heavy phase hole is formed in the side wall of the outer pipe, a second heavy phase hole is formed in the side wall of the inner pipe, and the inner pipe is communicated with the light and heavy phase discharging port through a pipeline.

Preferably, the light phase discharging structure comprises a light phase weir, and the light phase weir is communicated with the light-heavy phase discharging port through a pipeline.

Preferably, the third-phase turbid liquid discharging structure comprises a visual hole for observing the height of the third phase and a discharging pipe, and the built-in position of the discharging pipe is adjusted and determined according to the height position of the third phase.

Preferably, the top of the extraction tank is provided with a manhole and a plurality of exhaust holes.

Preferably, the bottom of the extraction tank is provided with a plurality of bases.

Preferably, the extraction tank is configured as an elliptic cylindrical tank body.

The beneficial effects of the utility model are as follows: (1) The extraction tank is an elliptic cylindrical tank body, which is beneficial to mixing and flowing of liquid and avoids flowing dead angles at corners like the tank body; (2) The elliptic cylindrical tank body is adopted, the height is lowest under the same condition, the transportation and the installation are convenient, the elliptic cylindrical tank body and the grating plate can achieve the purposes of small volume (saving the extractant) under the same occupied area, large clarification distance and sedimentation area (good phase separation effect), and the condition of gathering three-phase matters during the solid-liquid separation of suspension is convenient for being taken out from a three-phase port; (3) The elliptic cylindrical tank body has good integral sealing effect and can meet the environmental protection and safety requirements of all levels; (4) The mixing device can better tear liquid drops on the basis of ensuring the mixing mass transfer effect, so that the particle size of the liquid drops reaches the conditions of rapid coalescence and coalescence in a clarification area, an upper stationary blade wheel and a lower stationary blade wheel are respectively arranged on the upper part and the lower part of the movable blade wheel, and the movable blade wheel is used for mixing and lifting feed liquid; the upper stationary blade wheel is used for controlling the mixing intensity, is beneficial to the ascending of the material liquid in different areas, and the lower stationary blade wheel (can be a turbine disc) acts on the mixing device to accelerate the mixing, and the mixing device is a key structure for controlling the three-phase generating conditions; (5) The device comprises a plurality of parallel grating plates, wherein the grating plates are provided with hole groups for crushing liquid drops, and when a heavy phase and a light phase flow in a phase separation chamber, the hole groups can timely crush mutually-packaged liquid drops of the heavy phase and the light phase, so that emulsification can be effectively prevented, and phase separation can be more thorough; (6) The third phase discharging structure is arranged, so that the separation efficiency is improved, a liquid system is provided, in the extraction and separation process, the solution is easy to separate out to form suspension, the influence of the small part of suspension on the separation effect is extremely large, the suspension cannot be independently discharged by the existing equipment, and the suspension is discharged by the device through the third phase discharging structure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a front view showing the internal structure of an extraction tank according to an embodiment of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a schematic diagram showing an assembly structure of a plurality of extraction tanks according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a mixing device according to an embodiment of the present utility model.

In the figure:

1-extraction tank, 2-light and heavy phase feed inlet, 3-grating plate, 4-motor, 5-rotating shaft, 6-mixing cavity, 7-discharge port, 8-light and heavy phase discharge port, 9-upper static impeller, 10-dynamic impeller, 11-lower static impeller, 12-heavy phase adjusting pipe, 13-outer pipe, 14-inner pipe, 15-first heavy phase hole, 16-second heavy phase hole, 17-light phase weir, 18-visible hole, 19-discharge pipe, 20-manhole, 21-exhaust hole and 22-base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the utility model described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.

Referring to fig. 1-6, the present embodiment provides a liquid-liquid and suspension solid-liquid separation extraction workstation, which includes a plurality of extraction tanks 1 sequentially connected through pipelines, a discharge port of a first heavy extraction tank is communicated with a feed port of a second heavy extraction tank, and the like, target substances are separated and extracted through multiple repeated extraction, a light-heavy phase feed port 2 is arranged at a first end of each extraction tank 1, a discharge device is arranged at a second end of each extraction tank, a mixing device is arranged in the extraction tank 1 close to the first end, a plurality of grid plates 3 which are arranged in parallel and inclined are arranged between the mixing device and the discharge device, and the grid plates 3 can effectively prolong a liquid drop flow path, increase a sedimentation area, and further improve a split-phase effect; specifically, the grid plate 3 and the tank body are fixed in an adjustable and replaceable structure. And, a plurality of grating plates 3 are arranged laterally between the mixing device and the discharging device (as shown in fig. 1), that is, a plurality of grating plates 3 are arranged sequentially along the length direction of the extraction tank 1 between the mixing device and the discharging device (as shown in fig. 1); alternatively, a plurality of grating plates are longitudinally arranged between the mixing device and the discharging device (not shown in the drawing), that is, a plurality of grating plates 3 are sequentially arranged between both side walls of the extraction tank 1 in the width direction of the extraction tank 1 and between the mixing device and the discharging device. When the grating plates 3 are specifically provided, the inclination angle of the grating plates 3 (the angle between the grating plates 3 and the bottom side of the extraction tank 1) may be set to 50 ° -75 °.

Further, mixing arrangement includes motor 4, pivot 5 and mixing chamber 6, mixing chamber 6 upper end is connected with motor 4, the middle part is equipped with discharge gate 7, the bottom is through pipeline and light and heavy looks feed inlet 2 intercommunication, pivot 5 and motor 4's output shaft, stretch into in the mixing chamber 6, and the lower extreme of pivot 5 is connected with impeller assembly, mixing chamber 6's setting not only can be with the mixed liquid of accomplishing the mixing in the mixing chamber 6 through the drainage of middle part discharge gate 7 to the extraction jar 1 outside the mixing chamber 6 in carry out the phase separation, can avoid mixing chamber 6 inside stirring effect to the influence of heavy phase and light phase layering when the phase separation. Therefore, the mixing device can better tear liquid drops on the basis of ensuring the mixing mass transfer effect, so that the particle size of the liquid drops reaches the conditions of rapid coalescence and coalescence in a clarification area.

Specifically, the impeller assembly comprises an upper stationary blade wheel 9, a middle movable blade wheel 10 and a lower stationary blade wheel 11, wherein the upper stationary blade wheel 9 and the lower stationary blade wheel 11 are fixed in the mixing cavity 6, and the movable blade wheel 10 is arranged at the lower end of the rotating shaft 5. The movable impeller 10 is used for mixing and lifting feed liquid; the upper stationary blade wheel 9 is used for controlling the mixing intensity, is beneficial to the ascending of the material liquid in different areas, the lower stationary blade wheel 11 (which can be a turbine disk) acts on accelerating mixing, and the mixing device is a key structure for controlling the three-phase generating conditions. Here, the structure of the impeller assembly according to the embodiment of the present utility model includes, but is not limited to, an upper stationary blade wheel 9, a middle movable blade wheel 10, and a lower stationary blade wheel 11, for example, in other embodiments, the impeller assembly may further include a secondary movable blade wheel disposed below the lower stationary blade wheel 11.

Further, the discharging device comprises a heavy phase discharging structure, a light phase discharging structure and a third phase turbid liquid discharging structure along the direction from the first end to the second end, and the heavy phase discharging structure and the light phase discharging structure are communicated with a light phase discharging hole 8 arranged at the lower part of the second end of the extraction tank 1.

Specifically, the heavy phase discharging structure is set as a heavy phase adjusting pipe 12, the heavy phase adjusting pipe 12 comprises an outer pipe 13 and an inner pipe 14, the upper part of the outer pipe 13 extends out of the extraction tank 1, the bottom end of the outer pipe is fixed on the inner bottom wall of the extraction tank 1, a first heavy phase hole 15 is arranged on the side wall of the outer pipe 13, a second heavy phase hole 16 is arranged on the side wall of the inner pipe 14, and the inner pipe 14 is communicated with the light-heavy phase discharging port 8 through a pipeline; the light phase discharging structure comprises a light phase weir 17, and the light phase weir 17 is communicated with the light phase discharging port 8 through a pipeline; the third phase turbid liquid discharging structure comprises a visual hole 18 for observing the height of the third phase and a discharging pipe 19, and the built-in position of the discharging pipe 19 is adjusted and determined according to the height position of the third phase. The third phase discharging structure is arranged, so that the separation efficiency is improved, a liquid system is provided, in the extraction and separation process, the solution is easy to separate out to form suspension, the influence of the small part of suspension on the separation effect is extremely large, the suspension cannot be independently discharged by the existing equipment, and the suspension is discharged by the device through the third phase discharging structure.

The liquid-liquid and suspension liquid-solid-liquid separation extraction workstation in the embodiment has the advantages that the structure is simple, the design is reasonable, the extraction tank 1 is of a sealing structure, the heavy phase and the light phase cannot be exposed to the environment due to good sealing performance, and the environmental protection problem and the safety problem of the box-type extraction tank can be solved; the elliptic cylindrical tank body is beneficial to mixing and flowing of liquid; and the suspension can be independently discharged through the third phase discharging structure.

In the preferred scheme of the embodiment, the extraction tank 1 is an elliptic cylindrical tank body, has good integral sealing effect and can meet the environmental protection and safety requirements of all levels; not only is the liquid mixed and flowed facilitated, but also the flowing dead angle at the corners like the groove body is avoided; and the height is lowest under the same condition of the elliptic cylindrical tank body, so that the elliptic cylindrical tank body and the grating plate 3 are convenient to transport and install, the volume is small under the same occupied area (the extractant is saved), the clarification distance and the sedimentation area are large (the phase separation effect is good), and the conditions of gathering three-phase matters during the solid-liquid separation of suspension liquid can be met, so that the suspension liquid can be conveniently taken out from a three-phase port.

The top of the extraction tank 1 is provided with a manhole 20 and a plurality of exhaust holes 21, and the exhaust holes 21 are used for discharging gas in the extraction tank 1; the bottom of the extraction tank 1 is provided with a plurality of bases 22, so that the placement stability of the extraction tank is ensured.

Preferably, the workstation in this embodiment may further be provided with a temperature control device, a PH detection device, a pressure detection device, a rotation speed adjustment device, a flux adjustment device, a cleaning device (external, internal, optional ultrasonic descaling), etc., where the specific structure of the above device may refer to the existing structure, and specific repetitive description will not be made here.

It should be noted that the terms "first," "second," and the like herein are not limited to a specific order, but merely serve to distinguish between components or functions. The terms "upper" and "lower" are used herein to refer to the arrangement of FIG. 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a liquid-liquid, suspension solid-liquid separation extraction workstation, includes a plurality of extraction tanks that connect gradually, its characterized in that, every the first end of extraction tank is equipped with light and heavy looks feed inlet, second end is equipped with discharging device, is close to first end be equipped with mixing arrangement in the extraction tank, mixing arrangement with be equipped with a plurality of parallel slope setting's grid board between the discharging device, mixing arrangement includes motor, pivot and mixing cavity, mixing cavity upper end with the motor is connected, the middle part is equipped with the discharge gate, the bottom pass through the pipeline with light and heavy looks feed inlet intercommunication, the pivot with the output shaft of motor, stretch into in the mixing cavity, just the lower extreme of pivot is connected with impeller subassembly, discharging device follows from first end to the direction of second end includes heavy looks discharging structure, light looks discharging structure and third phase turbid liquid discharging structure, heavy looks discharging structure with establish the light and heavy looks discharging structure of extraction tank second end lower part communicates.

2. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the impeller assembly comprises an upper stationary impeller, a middle movable impeller, and a lower stationary impeller, the upper stationary impeller and the lower stationary impeller being fixed in the mixing chamber, the movable impeller being disposed at a lower end of the rotating shaft.

3. The liquid-liquid and suspension solid-liquid separation extraction workstation according to claim 1, wherein the heavy phase discharging structure is a heavy phase adjusting pipe, the heavy phase adjusting pipe comprises an outer pipe and an inner pipe, the upper part of the outer pipe extends out of the extraction tank, the bottom end of the outer pipe is fixed on the inner bottom wall of the extraction tank, a first heavy phase hole is formed in the side wall of the outer pipe, a second heavy phase hole is formed in the side wall of the inner pipe, and the inner pipe is communicated with the light-heavy phase discharging port through a pipeline.

4. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the light phase discharge structure comprises a light phase weir in communication with the light-heavy phase discharge outlet via a conduit.

5. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the third phase turbid liquid discharging structure comprises a visual hole for observing the height of the third phase and a discharging pipe, and the built-in position of the discharging pipe is adjusted and determined according to the height position of the third phase.

6. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the extraction tank top is provided with a manhole and a plurality of vent holes.

7. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the extraction tank bottom is provided with a plurality of bases.

8. The liquid-liquid, suspension solid-liquid separation extraction workstation of claim 1, wherein the extraction tank is configured as an elliptical cylindrical tank body.

9. The liquid-liquid, suspension solid-liquid separation extraction workstation of any one of claims 1 to 8, wherein a plurality of grating plates are arranged laterally between the mixing device and the discharge device or a plurality of grating plates are arranged longitudinally between the mixing device and the discharge device.