Split-level backflow type rare earth extraction tank and split-level backflow type rare earth extraction tank group
By installing intermediate partition plates and flow guides in the clarification room of the rare earth extraction tank, increasing the strokes of the aqueous and organic phases, the problems of poor separation effect and high production cost in the prior art are solved, and the two more efficient ones are achieved Phase separation and cost reduction.
Patent Information
- Application Number
- CN202420450743.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The strokes of the water phase and organic phase of the existing rare earth extraction tank in the clarification chamber are short and the separation effect is poor. At the same time, the higher clarification chamber leads to an increase in the pressure of the organic relative to the aqueous phase, which is not conducive to the separation of the extractant in the aqueous phase, and The equipment is large in size and high in production costs.
A split-layer reflow rare earth extraction tank is designed. By setting up a middle partition plate in the clarification room, the clarification room is divided into two flow channels with opposite flow directions, increasing the stroke of the water and organic phases, and passing through the flow guide and guide Structures such as plates improve the separation effect of the two phases.
By increasing the strokes of the aqueous phase and the organic phase, the separation effect of the two phases is improved, the production cost is reduced, and the structural design of the equipment is optimized.
Smart Images
Figure CN222476698U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rare earth equipment, and in particular relates to a staggered layer reflux type rare earth extraction tank and a staggered layer reflux type 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 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-layer reflux rare earth extraction tank, which is used to increase the travel distance of the water phase and the organic phase, and improve the two-phase separation effect.
[0008] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a staggered reflux rare earth extraction tank, including a mixing chamber, a clarifying chamber and a guide pipe, wherein the clarifying chamber is arranged on one side of the mixing chamber, and the clarifying chamber includes a middle partition, one end of the middle partition is fixed to the side wall of the clarifying chamber close to the mixing chamber, and the other end extends to the side wall of the other end of the clarifying chamber and forms a gap between the side wall, and the middle partition divides the clarifying chamber into a first flow channel and a second flow channel with opposite flow directions, the first flow channel is connected to the mixing chamber, and the second flow channel is not connected to the mixing chamber; the guide pipe includes 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 respectively connected to the second flow channel, and the aqueous phase discharge guide pipe and the organic phase discharge guide pipe are arranged at one end of the clarifying chamber close to the mixing chamber.
[0009] In one or more embodiments of the present invention, at least one guide plate is provided in the first flow channel and / or the second flow channel, one end of the guide plate is fixed to an inner wall of one side of the first flow channel and / or the second flow channel, and a gap is formed between the guide plate and the inner wall on the other side for the water phase and the organic phase to pass through.
[0010] In one or more embodiments of the present invention, a plurality of guide plates are respectively disposed in the first flow channel and the second flow channel, and the gaps between adjacent guide plates and inner walls in the first flow channel and the second flow channel are staggered.
[0011] In one or more embodiments of the present invention, a baffle is disposed at one end of the first flow channel close to the mixing chamber, and a gap is formed between the baffle and the bottom of the first flow channel for the water phase and the organic phase to pass through.
[0012] In one or more embodiments of the present invention, a water phase flow guide and an organic phase flow guide are provided at one end of the second flow channel close to the mixing chamber, and the water phase discharge flow guide pipe and the organic phase discharge flow guide pipe are connected to the water phase flow guide and the organic phase flow guide respectively.
[0013] In one or more embodiments of the present invention, the height of the mixing chamber is greater than the height of the clarifying chamber, and / or a partition is provided between the mixing chamber and the clarifying chamber, the partition includes a first part blocking the first flow channel and the mixing chamber, and a second part blocking the second flow channel and the mixing chamber, the top of the second part of the partition is flush with the top of the middle partition, and the height of the first part of the partition is lower than the height of the second part.
[0014] In one or more embodiments of the present invention, the mixing chamber includes a mixing bin and a latent chamber arranged above and below, a latent chamber plate is arranged between the mixing bin and the latent chamber, 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 diversion port is opened on the latent chamber plate, the latent chamber diversion port is opened at the position of the latent chamber partition plate and connects the mixing bin to the aqueous phase latent chamber and the organic phase latent chamber respectively.
[0015] In one or more embodiments of the present invention, a flow guide chamber is further included, wherein the flow guide chamber includes a water phase flow guide chamber connected to the water phase latent chamber, and an organic phase flow guide chamber connected to the organic phase latent chamber, a flow guide chamber partition is arranged between the water phase flow guide chamber and the organic phase flow guide chamber, and the water phase feed flow guide pipe and the organic phase feed flow guide pipe are respectively connected to the water phase flow guide chamber and the organic phase flow guide chamber.
[0016] The utility model also provides a staggered layer reflux rare earth extraction tank group, comprising a plurality of the above-mentioned staggered layer reflux rare earth extraction tanks, wherein the water phase discharge guide pipe of one of the staggered layer reflux rare earth extraction tanks is connected to the water phase feed guide pipe of the adjacent staggered layer reflux rare earth extraction tank on one side, and its organic phase discharge guide pipe is connected to the organic phase feed guide pipe of the adjacent staggered layer reflux rare earth extraction tank on the other side.
[0017] In one or more embodiments of the present invention, all of the staggered-layer reflux rare earth extraction tanks are arranged in an array, and the mixing chambers of all of the staggered-layer reflux rare earth extraction tanks are located on the same side.
[0018] Compared with the prior art, the staggered-layer reflux rare earth extraction tank of the utility model increases the travel of the aqueous phase and the organic phase to improve the two-phase separation effect by adding a middle partition in the clarification chamber to divide the clarification chamber into two flow channels with opposite flow directions. 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 It is a schematic diagram of a staggered-layer reflux rare earth extraction tank in one embodiment of the utility model;
[0021] Figure 2 This is a front view of a staggered-layer reflux rare earth extraction tank in one embodiment of the utility model;
[0022] Figure 3It is a top view of a staggered-layer reflux rare earth extraction tank in one embodiment of the utility model;
[0023] Figure 4 It is a side view of a staggered-layer reflux rare earth extraction tank in one embodiment of the utility model;
[0024] Figure 5 This is a schematic diagram of a staggered-layer reflux rare earth extraction tank group in one embodiment of the utility model.
[0025] Description of main reference numerals:
[0026] 100-staggered reflux rare earth extraction tank, 10-mixed type, 11-mixing chamber, 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, 201-first flow channel, 202-second flow channel, 203-gap, 21-middle partition, 22-guide plate, 23-baffle, 24-water phase flow guide, 25-organic phase flow guide, 26-partition, 261-notch, 31-water phase feed flow guide pipe, 32-organic phase feed flow guide pipe, 33-water phase discharge flow guide pipe, 34-organic phase discharge flow guide pipe, 200-staggered reflux rare earth extraction tank. DETAILED DESCRIPTION
[0027] 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.
[0028] like Figure 1-4As shown, a staggered reflux rare earth extraction tank 100 in one embodiment of the utility model comprises a mixing chamber 10, a clarifying chamber 20 and a flow guide tube. A middle partition 21 is arranged in the clarifying chamber 20, and the middle partition 21 extends from one side of the clarifying chamber 20 close to the mixing chamber 10 to the other side of the clarifying chamber 20, and a gap 203 for the water phase and the organic phase to pass through is formed between the middle partition 21 and the inner wall of the other side of the clarifying chamber 20. The clarifying chamber 20 is divided into a first flow channel 201 and a second flow channel 202 by the middle partition 21, wherein the first flow channel 201 is connected to the mixing chamber 10, and the second flow channel 202 is not connected to the mixing chamber 10. The flow guide pipes include a water phase feed flow guide pipe 31 and an organic phase feed flow guide pipe 32 connected to the mixing chamber 10, and a water phase discharge flow guide pipe 33 and an organic phase discharge flow guide pipe 34 respectively connected to the second flow channel 202. The first two are used to lead the water phase and the organic phase into the mixing chamber 10, respectively, and the latter two are used to lead the water phase and the organic phase out of the clarification chamber 20, respectively. The water phase discharge flow guide pipe 33 and the organic phase discharge flow guide pipe 34 are arranged at one end of the clarification chamber 20 close to the mixing chamber 10.
[0029] In one embodiment, a partition 26 is provided between the mixing chamber 10 and the clarifying chamber 20, and the partition 26 includes a first portion blocking between the first flow channel and the mixing chamber, and a second portion blocking between the second flow channel and the mixing chamber, wherein the top of the second portion is flush with the middle partition 21, and the top of the first portion is lower than the plane where the top of the second portion is located. Therefore, the partition 26 is formed with a notch 261 at a position corresponding to the first six channels 201, the first flow channel 201 is connected to the mixing chamber 10, and the aqueous phase and the organic phase flow into the first flow channel 201 through the notch 261. However, due to the height, the aqueous phase and the organic phase cannot flow directly from the mixing chamber into the second flow channel 202. The water phase discharge conduit 33 and the organic phase discharge conduit 34 are respectively connected to one end of the second flow channel 202 close to the mixing chamber 10. Therefore, after the water phase and the organic phase after the reaction enter the clarification chamber 20, they need to flow to the other side of the clarification chamber 20 through the first flow channel 201, and then enter the second flow channel 202 after passing through the gap 203 and flow back to the end of the clarification chamber 20 close to the mixing chamber 10, and finally flow out through the water phase discharge conduit 33 and the organic phase discharge conduit 34. Compared with the traditional setting method, the middle partition 21 is set in the clarification chamber 20 to greatly increase the stroke of the water phase and the organic phase, so the separation time of the two phases is greatly increased, and the phase separation effect is improved.
[0030] Preferably, a guide plate 22 is provided in the first flow channel 201 and / or the second flow channel 202, which is fixed to the inner wall of one side of the first flow channel 201 and / or the second flow channel 202 and forms a gap with the inner wall of the other side. The guide plate 22 further changes the travel of the two phases, making the two phases flow in a tortuous manner in the first flow channel 201 and / or the second flow channel 202, thereby further improving the phase separation time and phase separation effect.
[0031] Specifically, a plurality of guide plates 22 are respectively arranged in the first flow channel 201 and the second flow channel 202, and the gaps between the guide plates 22 and the inner wall of the flow channel in each flow channel are arranged at intervals, that is, when the gap between one of the guide plates 22 and the inner wall of the flow channel is formed on one side of the middle partition plate 21, the gap between the adjacent guide plates 22 and the inner wall of the flow channel is formed on one side of the inner wall of the clarification chamber 20. With such an arrangement, the two phases flow in the first flow channel 201 and the second flow channel 202 in an S shape, the phase separation stroke and time are further increased, and the phase separation effect is improved.
[0032] In this embodiment, a baffle 23 is further provided in the first flow channel 201, and the baffle 23 is fixed to a side close to the mixing chamber 10, and is used to control the flow of the aqueous phase and the organic phase when entering the clarification chamber 20. A gap is left between the bottom of the baffle 23 and the bottom of the first flow channel 201, and the aqueous phase and the organic phase flow backward through the gap after entering the first flow channel 201.
[0033] like Figure 3 As shown, a water phase flow guide 24 and an organic phase flow guide 25 are provided at the end of the second flow channel 202, and the two are respectively connected to the water phase discharge flow guide pipe 33 and the organic phase discharge flow guide pipe 34, and are used to respectively discharge the water phase and the organic phase.
[0034] Preferably, the overall height of the clarification chamber 20 is smaller than that of the mixing chamber 10, so that the overall volume of the clarification chamber 20 is reduced, the amount of aqueous phase and organic phase is reduced, and the production cost is reduced. Secondly, the lower height of the clarification chamber 20 can reduce the pressure of the organic phase on the aqueous phase, which is helpful to separate the extractant in the aqueous phase.
[0035] In one embodiment, the mixing chamber 10 includes a mixing chamber 11 and a latent chamber 12, which are arranged up and down and separated by a latent chamber plate 13. The latent chamber 12 is divided into an aqueous phase latent chamber 121 and an organic phase latent chamber 122, which are separated by a latent chamber partition plate 14, and an aqueous phase feed guide pipe 31 and an organic phase feed guide pipe 32 are connected to the aqueous phase latent chamber 121 and the organic phase latent chamber 122 respectively. A latent chamber guide port 131 is provided on the latent chamber plate 13, and the latent chamber guide port 131 is located at the position of the latent chamber partition plate 14, so that after the aqueous phase and the organic phase enter the aqueous phase latent chamber 121 and the organic phase latent chamber 122 respectively, they enter the mixing chamber 11 through the latent chamber guide port 131 at the same time and then mix and react.
[0036] Furthermore, a flow guide chamber 15 is provided on one side of the latent chamber 12, including a water phase flow guide chamber 151 and an organic phase flow guide chamber 152, which are separated by a flow guide chamber partition plate 16 and are respectively connected to the water phase latent chamber 121 and the organic phase latent chamber 122, and the water phase feed flow guide pipe 31 and the organic phase feed flow guide pipe 32 are respectively connected to the water phase flow guide chamber 151 and the organic phase flow guide chamber 152. Therefore, after the water phase enters the water phase flow guide chamber 151, it enters the mixing chamber 11 through the water phase latent chamber 121, and after the organic phase enters the organic phase flow guide chamber 152, it enters the mixing chamber 11 through the organic phase latent chamber 122.
[0037] In order to improve the extraction efficiency, the present embodiment further provides a staggered layer reflux rare earth extraction tank group 200, which is composed of a plurality of staggered layer reflux rare earth extraction tanks 100 sequentially combined. Figure 5 As shown, the water phase flow guide 24 of one staggered reflux rare earth extraction tank 100 is connected to the water phase flow guide chamber 151 of the extraction tank on one side, and the organic phase flow guide 25 is connected to the organic phase flow guide chamber 152 of the extraction tank on the other side, so the water phase and the organic phase have opposite flow directions in the entire staggered rare earth extraction tank group 200.
[0038] 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.
[0039] 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.
[0040] 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-layer reflux rare earth extraction tank, characterized in that: include: Mixing chamber; a clarifying chamber, arranged at one side of the mixing chamber, the clarifying chamber comprising a middle partition, one end of the middle partition being fixed to a side wall of the clarifying chamber close to the mixing chamber, the other end of the middle partition extending to the side wall at the other end of the clarifying chamber and forming a gap between the side wall, the middle partition dividing the clarifying chamber into a first flow channel and a second flow channel with opposite flow directions, the first flow channel being connected to the mixing chamber, and the second flow channel not being connected to the mixing chamber; and 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 respectively connected to the second flow channel, and the water phase discharge flow guide pipe and the organic phase discharge flow guide pipe are arranged at one end of the clarification chamber close to the mixing chamber.
2. The staggered layer reflux rare earth extraction tank according to claim 1, characterized in that: At least one guide plate is arranged in the first flow channel and / or the second flow channel, one end of the guide plate is fixed to the inner wall of one side of the first flow channel and / or the second flow channel, and a gap is formed between the guide plate and the inner wall on the other side for the water phase and the organic phase to pass through.
3. The staggered layer reflux rare earth extraction tank according to claim 2, characterized in that: A plurality of guide plates are respectively arranged in the first flow channel and the second flow channel, and the gaps between adjacent guide plates and inner walls in the first flow channel and the second flow channel are staggered.
4. The staggered-layer reflux rare earth extraction tank according to claim 3, characterized in that: A baffle is disposed at one end of the first flow channel close to the mixing chamber, and a gap is formed between the baffle and the bottom of the first flow channel for the water phase and the organic phase to pass through.
5. The staggered-layer reflux rare earth extraction tank according to claim 3, characterized in that: A water phase flow guide and an organic phase flow guide are arranged at one end of the second flow channel close to the mixing chamber, and the water phase discharge flow guide pipe and the organic phase discharge flow guide pipe are connected to the water phase flow guide and the organic phase flow guide respectively.
6. The staggered-layer reflux rare earth extraction tank according to claim 1, characterized in that: The height of the mixing chamber is greater than that of the clarifying chamber, and / or a partition is provided between the mixing chamber and the clarifying chamber, the partition includes a first part blocking the first flow channel and the mixing chamber, and a second part blocking the second flow channel and the mixing chamber, the top of the second part of the partition is flush with the top of the middle partition, and the height of the first part of the partition is lower than the height of the second part.
7. The staggered-layer reflux rare earth extraction tank according to claim 1, characterized in that: The mixing chamber includes a mixing bin and a latent chamber arranged above and below, a latent chamber plate is arranged between the mixing bin and the latent chamber, 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 diversion port is opened on the latent chamber plate, the latent chamber diversion port is opened at the position of the latent chamber partition plate and connects the mixing bin to the aqueous phase latent chamber and the organic phase latent chamber respectively.
8. The staggered-layer reflux rare earth extraction tank according to claim 7, characterized in that: It also includes a guide chamber, which includes a water phase guide chamber connected to the water phase latent chamber, and an organic phase guide chamber connected to the organic phase latent chamber, a guide chamber partition is arranged between the water phase guide chamber and the organic phase guide chamber, and the water phase feed guide pipe and the organic phase feed guide pipe are respectively connected to the water phase guide chamber and the organic phase guide chamber.
9. A staggered reflux rare earth extraction tank group, characterized in that: It comprises a plurality of staggered-layer reflux rare earth extraction tanks as described in any one of claims 1 to 8, wherein the water phase discharge guide pipe of one staggered-layer reflux rare earth extraction tank is connected to the water phase feed guide pipe of an adjacent staggered-layer reflux rare earth extraction tank on one side, and its organic phase discharge guide pipe is connected to the organic phase feed guide pipe of an adjacent staggered-layer reflux rare earth extraction tank on the other side.
10. The staggered-layer reflux rare earth extraction tank group according to claim 9, characterized in that: All of the staggered-layer reflux rare earth extraction tanks are arranged in an array, and the mixing chambers of all of the staggered-layer reflux rare earth extraction tanks are located on the same side.