Split-level rare earth extraction tank and split-level rare earth extraction tank group

Abstract

The utility model discloses a split-level rare earth extraction tank which comprises a mixing chamber, a clarifying chamber and a flow guide pipe, the clarifying chamber is arranged on one side of the mixing chamber and communicated with the mixing chamber, and the height of the clarifying chamber is lower than that of the mixing chamber; the flow guide pipe comprises a water phase feeding flow guide pipe and an organic phase feeding flow guide pipe which are communicated with the mixing chamber as well as a water phase discharging flow guide pipe and an organic phase discharging flow guide pipe which are communicated with the clarifying chamber, and the water phase feeding flow guide pipe and the organic phase feeding flow guide pipe are respectively used for guiding a water phase and an organic phase into the mixing chamber; the water phase discharging flow guide pipe and the organic phase discharging flow guide pipe are respectively used for guiding out a water phase and an organic phase which are separated from each other from the clarifying chamber. The height of the clarifying chamber is smaller than that of the mixing chamber, so that the pressure of an organic phase on a water phase is reduced, the separation of an extracting agent is facilitated, meanwhile, the overall volume of the clarifying chamber is reduced, the consumption of the water phase and the organic phase is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rare earth equipment, and in particular relates to a staggered rare earth extraction tank and a staggered rare earth extraction tank group. Background Art

[0002] China is the country with the richest rare earth resources in the world and is known as the "Rare Earth Kingdom". The purification and smelting of rare earth elements usually uses hydrometallurgical methods, and the equipment used is an extraction tank.

[0003] The extraction tank is a step-by-step contact extraction device that achieves two-phase separation by gravity. It is mainly composed of a mixing chamber and a clarifying chamber. The rare earth-containing aqueous phase and the organic phase composed of the extractant first enter the mixing chamber through their respective feed ports, are mixed and mass-transferred by the agitator, and then enter the clarifying chamber through the overflow baffle, and are naturally separated by gravity. Finally, they enter different outlets to complete the extraction process.

[0004] The extraction tank currently used has a mixing chamber and a clarifying chamber of the same height, and after the aqueous phase and the organic phase are mixed in the mixing chamber, they enter one end of the clarifying chamber, and then enter different outlets from the other end. The aqueous phase and the organic phase of this extraction tank have a short travel in the clarifying chamber, and the separation effect of the aqueous phase and the organic phase is not good. At the same time, the higher clarifying chamber causes the pressure of the organic phase on the aqueous phase to increase, which is not conducive to separating the extractant in the aqueous phase. Secondly, the clarifying chamber is the same height as the mixing chamber, and the volume is large. There are more aqueous phases and organic phases required inside, and the production cost is high.

[0005] Therefore, in view of the above technical problems, it is necessary to provide an improved staggered rare earth extraction tank.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0007] The utility model aims to provide a staggered rare earth extraction tank, which is used to solve the separation problem of water phase and organic phase in the prior art.

[0008] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a staggered rare earth extraction tank, comprising a mixing chamber, a clarifying chamber and a guide pipe, wherein the clarifying chamber is arranged on one side of the mixing chamber and connected to the mixing chamber, and the height of the clarifying chamber is lower than the height of the mixing chamber; the guide pipe comprises an aqueous phase feed guide pipe and an organic phase feed guide pipe connected to the mixing chamber, and an aqueous phase discharge guide pipe and an organic phase discharge guide pipe connected to the clarifying chamber, the aqueous phase feed guide pipe and the organic phase feed guide pipe are respectively used to introduce the aqueous phase and the organic phase into the mixing chamber, and the aqueous phase discharge guide pipe and the organic phase discharge guide pipe are respectively used to discharge the aqueous phase and the organic phase after the two-phase separation from the clarifying chamber.

[0009] In one or more embodiments of the present invention, the staggered rare earth extraction tank also includes an organic phase flow guide and an aqueous phase flow guide arranged in the clarification chamber, and the organic phase flow guide and the aqueous phase flow guide are arranged on the side of the clarification chamber away from the mixing chamber, and the organic phase discharge flow guide pipe and the aqueous phase discharge flow guide pipe are respectively connected to the organic phase flow guide and the aqueous phase flow guide.

[0010] In one or more embodiments of the present invention, at least two guide plates are arranged in the clarification chamber, and the guide plates are arranged between the mixing chamber and the water phase deflector at intervals. Each of the guide plates is respectively provided with holes for the water phase and the organic phase to pass through, and adjacent holes are respectively arranged at the top and bottom of the clarification chamber.

[0011] In one or more embodiments of the present invention, a baffle is further provided in the clarification chamber, wherein the baffle is provided between the mixing chamber and the guide plate, the baffle is fixed to the side wall of the clarification chamber, and forms a channel for the water phase and the organic phase to pass through with the bottom of the clarification chamber.

[0012] In one or more embodiments of the present invention, the mixing chamber includes a mixing bin and a latent chamber arranged up and down, the latent chamber includes an aqueous phase latent chamber and an organic phase latent chamber, a latent chamber partition plate is arranged between the aqueous phase latent chamber and the organic phase latent chamber, a latent chamber plate is arranged between the mixing bin and the latent chamber, the latent chamber plate is provided with a latent chamber guide port, the latent chamber guide port connects the aqueous phase latent chamber and the organic phase latent chamber with the mixing bin respectively, and the aqueous phase feed guide pipe and the organic phase feed guide pipe are connected to the aqueous phase latent chamber and the organic phase latent chamber respectively.

[0013] In one or more embodiments of the present invention, the staggered rare earth extraction tank also includes a guide chamber, which includes an aqueous phase guide chamber and an organic phase guide chamber respectively connected to the aqueous phase latent chamber and the organic phase latent chamber, a guide chamber partition plate is arranged between the aqueous phase guide chamber and the organic phase guide chamber, and the aqueous phase feed guide pipe and the organic phase feed guide pipe are respectively connected to the aqueous phase guide chamber and the organic phase guide chamber.

[0014] In one or more embodiments of the present invention, the height of the guide chamber is greater than the height of the latent chamber.

[0015] In one or more embodiments of the present invention, the aqueous phase feed guide pipe and the organic phase feed guide pipe are respectively connected to the top of the aqueous phase guide chamber and the organic phase guide chamber, the channel openings of the aqueous phase guide chamber and the aqueous phase latent chamber are opened at the bottom of the aqueous phase guide chamber, and the channel openings of the organic phase guide chamber and the organic phase latent chamber are opened at the bottom of the organic phase guide chamber.

[0016] The utility model also provides a staggered rare earth extraction tank, comprising a plurality of staggered rare earth extraction tanks as described above, wherein the water phase discharge guide pipe of one of the staggered rare earth extraction tanks is connected to the water phase feed guide pipe of an adjacent staggered rare earth extraction tank on one side, and the organic phase discharge guide pipe thereof is connected to the organic phase feed guide pipe of an adjacent staggered rare earth extraction tank on the other side.

[0017] In one or more embodiments of the present invention, all of the staggered rare earth extraction tanks are arranged in an array, and the mixing chambers of all of the staggered rare earth extraction tanks are located on the same side.

[0018] Compared with the prior art, the staggered rare earth extraction tank of the utility model reduces the height of the clarification chamber, reduces the pressure of the organic phase on the aqueous phase, helps to separate the extractant, and at the same time reduces the overall volume of the clarification chamber, reduces the amount of aqueous phase and organic phase, and reduces production costs. Secondly, the extraction tank adds a guide plate in the clarification chamber, increases the travel of the aqueous phase and the organic phase in the clarification chamber, and improves the separation effect of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of a staggered rare earth extraction tank in one embodiment of the utility model;

[0021] Figure 2 A top view of a staggered rare earth extraction tank in one embodiment of the utility model;

[0022] Figure 3 It is a side view of a staggered rare earth extraction tank in one embodiment of the utility model;

[0023] Figure 4It is a schematic diagram of a staggered rare earth extraction tank group in one embodiment of the utility model.

[0024] Description of main reference numerals:

[0025] 100-staggered rare earth extraction tank, 10-mixing chamber, 11-mixing bin, 12-latent chamber, 121-water phase latent chamber, 122-organic phase latent chamber, 13-latent chamber plate, 131-latent chamber diversion port, 14-latent chamber partition plate, 15-diversion chamber, 151-water phase diversion chamber, 152-organic phase diversion chamber, 16-diversion chamber partition plate, 20-clarification chamber, 21-water phase diverter, 22-organic phase diverter, 23-guide plate, 24-baffle, 31-water phase feed diversion pipe, 32-organic phase feed diversion pipe, 33-water phase discharge diversion pipe, 34-organic phase discharge diversion pipe, 200-staggered rare earth extraction tank group. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] like Figure 1-3 As shown, the staggered rare earth extraction tank 100 in one embodiment of the utility model comprises a mixing chamber 10 and a clarifying chamber 20 which are interconnected, and a flow guide pipe for introducing and exporting a water phase and an organic phase, wherein the flow guide pipe comprises a water phase feed flow guide pipe 31 and an organic phase feed flow guide pipe 32 which are respectively connected to the mixing chamber 10, and a water phase discharge flow guide pipe 33 and an organic phase discharge flow guide pipe 34 which are respectively connected to the clarifying chamber 20. The water phase and the organic phase flow into the mixing chamber 10 through the water phase feed flow guide pipe 31 and the organic phase feed flow guide pipe 32 respectively, and after mixing and reacting in the mixing chamber 10, enter the clarifying chamber 20 for two-phase separation, and finally flow out through the water phase discharge flow guide pipe 33 and the organic phase discharge flow guide pipe 34 respectively.

[0028] In this embodiment, the overall height of the clarification chamber 20 is lower than that of the mixing chamber 10, so its overall volume is relatively low, thereby reducing the amount of water phase and organic phase, and reducing production costs. Secondly, the lower height of the clarification chamber 20 can reduce the pressure of the organic phase on the water phase, which is helpful for separating the extractant in the water phase.

[0029] In this embodiment, a water phase flow guide 21 and an organic phase flow guide 22 are provided in the clarification chamber 20, and a water phase discharge flow guide pipe 33 and an organic phase discharge flow guide pipe 34 are respectively connected to the water phase flow guide 21 and the organic phase flow guide 22, the water phase is led out of the tank body from the water phase flow guide 21 through the water phase discharge flow guide pipe 33, and the organic phase is led out of the tank body from the organic phase flow guide 22 through the organic phase discharge flow guide pipe 34. Since the mixing chamber 10 and the two flow guides are at both ends of the clarification chamber 20, the travel of the water phase and the organic phase is increased, which is helpful for the separation of the two phases.

[0030] In order to further improve the two-phase separation effect, at least two guide plates 23 are provided in the clarification chamber 20, which are spaced between the mixing chamber 10 and the two flow guides, and holes are respectively opened on each guide plate 23 for the water phase and the organic phase to pass through. In this embodiment, the holes on the adjacent guide plates 23 are respectively opened at the top and bottom positions of each, so the water phase and the organic phase need to flow from the top of the clarification chamber 20 to the bottom and then to the top, and the overall flow direction is S-shaped. If the number of guide plates 23 is large, the entire stroke will be further extended, thereby greatly extending the phase separation time and improving the phase separation effect.

[0031] Furthermore, in order to improve the flow direction of the aqueous phase and the organic phase when they enter the clarification chamber 20 from the mixing chamber 10, a baffle 24 is further provided on the side of the clarification chamber 20 close to the mixing chamber 10. The baffle 24 only blocks the upper position here, and the aqueous phase and the organic phase flow from the bottom to the rear end of the baffle 24. Since the aqueous phase and the organic phase flow in the clarification chamber 20 in an S-shaped direction, the hole on the guide plate 23 close to the baffle 24 is opened at the top position of the guide plate 23.

[0032] In this embodiment, the mixing chamber 10 includes a mixing bin 11 and a latent chamber 12 arranged up and down, and the two are separated by a latent chamber plate 13. The latent chamber 12 includes an aqueous phase latent chamber 121 and an organic phase latent chamber 122 for guiding the aqueous phase and the organic phase, respectively, and the two are separated by a latent chamber partition plate 14. A latent chamber diversion port 131 is provided on the latent chamber plate 13, which is opened at the position of the latent chamber partition plate 14 and simultaneously connects the aqueous phase latent chamber 121 and the organic phase latent chamber 122 on both sides, and the aqueous phase and the organic phase flow into the mixing bin 11 through the latent chamber diversion port 131.

[0033] Furthermore, a guide chamber 15 is provided on one side of the latent chamber 12, and the guide chamber 15 is arranged below the clarification chamber 20, including a water phase guide chamber 151 and an organic phase guide chamber 152 separated by a guide chamber partition plate 16, which respectively correspond to and connect the water phase latent chamber 121 and the organic phase latent chamber 122, and the water phase feed guide pipe 31 and the organic phase feed guide pipe 32 are respectively connected to the water phase guide chamber 151 and the organic phase guide chamber 152, so the flow direction of the water phase in the mixing chamber 10 is water phase guide chamber 151-water phase latent chamber 121-mixing chamber 11, and the flow direction of the organic phase in the mixing chamber 10 is organic phase guide chamber 152-organic phase latent chamber 122-mixing chamber 11.

[0034] In this embodiment, the bottom of the flow guide chamber 15 and the bottom of the latent chamber 12 are in the same plane, but the height of the flow guide chamber 15 is greater than the height of the latent chamber 12, the water phase feed flow guide pipe 31 and the organic phase feed flow guide pipe 32 are respectively connected to the top positions of the water phase flow guide chamber 151 and the organic phase flow guide chamber 152, and the channel opening connecting the water phase flow guide chamber 151 and the water phase latent chamber 121 is opened at the bottom position, and the channel opening connecting the organic phase flow guide chamber 152 and the organic phase latent chamber 122 is also opened at the bottom position. After the above settings, the flow direction of the water phase is further refined into the top of the water phase flow guide chamber 151-the bottom of the water phase flow guide chamber 151-the water phase latent chamber 121-the mixing chamber 11, and the flow direction of the organic phase is the same, which will not be repeated here.

[0035] In order to improve the extraction efficiency, this embodiment further provides a staggered rare earth extraction tank group 200, which is composed of a plurality of staggered rare earth extraction tanks 100 sequentially combined. Figure 4 As shown, the water phase flow guide 21 of one of the staggered rare earth extraction tanks 100 is connected to the water phase flow guide chamber 151 on one side, while the organic phase flow guide 22 is connected to the organic phase flow guide chamber 152 on the other side, so the water phase and the organic phase flow in opposite directions in the entire staggered rare earth extraction tank group 200.

[0036] Preferably, when combined, all the mixing chambers 10 are arranged on the same side, and all the clarifying chambers 20 are arranged on the other side, so that the staff can observe the conditions in the mixing chambers 10 and the clarifying chambers 20 conveniently.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A staggered rare earth extraction tank, characterized in that: include: Mixing chamber; A clarification chamber is arranged at one side of the mixing chamber and communicated with the mixing chamber, and the height of the clarification chamber is lower than the height of the mixing chamber; The flow guide pipes include a water phase feed flow guide pipe and an organic phase feed flow guide pipe connected to the mixing chamber, and a water phase discharge flow guide pipe and an organic phase discharge flow guide pipe connected to the clarification chamber. The water phase feed flow guide pipe and the organic phase feed flow guide pipe are respectively used to introduce the water phase and the organic phase into the mixing chamber, and the water phase discharge flow guide pipe and the organic phase discharge flow guide pipe are respectively used to discharge the water phase and the organic phase after two-phase separation from the clarification chamber.

2. The staggered rare earth extraction tank according to claim 1, characterized in that: It also includes an organic phase flow guide and a water phase flow guide arranged in the clarification chamber. The organic phase flow guide and the water phase flow guide are arranged on a side of the clarification chamber away from the mixing chamber. The organic phase discharge flow guide pipe and the water phase discharge flow guide pipe are connected to the organic phase flow guide and the water phase flow guide respectively.

3. The staggered rare earth extraction tank according to claim 2, characterized in that: At least two guide plates are arranged in the clarification chamber, and the guide plates are arranged between the mixing chamber and the water phase deflector at intervals. Each of the guide plates is respectively provided with holes for the water phase and the organic phase to pass through, and adjacent holes are respectively arranged at the top and bottom of the clarification chamber.

4. The staggered rare earth extraction tank according to claim 3, characterized in that: The clarification chamber is also provided with a baffle, which is arranged between the mixing chamber and the guide plate. The baffle is fixed to the side wall of the clarification chamber and forms a channel for the water phase and the organic phase to pass through with the bottom of the clarification chamber.

5. The staggered rare earth extraction tank according to claim 1, characterized in that: The mixing chamber includes a mixing bin and a latent chamber arranged up and down, the latent chamber includes an aqueous phase latent chamber and an organic phase latent chamber, a latent chamber partition plate is arranged between the aqueous phase latent chamber and the organic phase latent chamber, a latent chamber plate is arranged between the mixing bin and the latent chamber, the latent chamber plate is provided with a latent chamber guide port, the latent chamber guide port connects the aqueous phase latent chamber and the organic phase latent chamber with the mixing bin respectively, the aqueous phase feed guide pipe and the organic phase feed guide pipe are connected to the aqueous phase latent chamber and the organic phase latent chamber respectively.

6. The staggered rare earth extraction tank according to claim 5, characterized in that: It also includes a guide chamber, which includes an aqueous phase guide chamber and an organic phase guide chamber respectively connected to the aqueous phase latent chamber and the organic phase latent chamber, a guide chamber partition plate is arranged between the aqueous phase guide chamber and the organic phase guide chamber, and the aqueous phase feed guide pipe and the organic phase feed guide pipe are respectively connected to the aqueous phase guide chamber and the organic phase guide chamber.

7. The staggered rare earth extraction tank according to claim 6, characterized in that: The height of the guide chamber is greater than the height of the latent chamber.

8. The staggered rare earth extraction tank according to claim 7, characterized in that: The aqueous phase feed guide pipe and the organic phase feed guide pipe are respectively connected to the top of the aqueous phase guide chamber and the organic phase guide chamber, the channel openings of the aqueous phase guide chamber and the aqueous phase latent chamber are opened at the bottom of the aqueous phase guide chamber, and the channel openings of the organic phase guide chamber and the organic phase latent chamber are opened at the bottom of the organic phase guide chamber.

9. A staggered rare earth extraction tank group, characterized in that: It comprises a plurality of staggered rare earth extraction tanks as described in any one of claims 1 to 8, wherein the water phase discharge conduit of one staggered rare earth extraction tank is connected to the water phase feed conduit of an adjacent staggered rare earth extraction tank on one side, and its organic phase discharge conduit is connected to the organic phase feed conduit of an adjacent staggered rare earth extraction tank on the other side.

10. The staggered rare earth extraction tank group according to claim 9, characterized in that: All of the staggered rare earth extraction tanks are arranged in an array, and the mixing chambers of all of the staggered rare earth extraction tanks are located on the same side.

Images