CN217324235U - Rare earth ore leaches mother liquor processing apparatus - Google Patents
Rare earth ore leaches mother liquor processing apparatus Download PDFInfo
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- CN217324235U CN217324235U CN202220748363.3U CN202220748363U CN217324235U CN 217324235 U CN217324235 U CN 217324235U CN 202220748363 U CN202220748363 U CN 202220748363U CN 217324235 U CN217324235 U CN 217324235U
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Abstract
The utility model discloses a rare earth ore leaching mother liquor treatment device, which comprises a tank body, wherein a stirring device is arranged at the top of the tank body, a stirring shaft of the stirring device extends into the tank body, and a stirrer is arranged on the stirring shaft to stir the solution in the tank body; the tank body is provided with a liquid inlet and an overflow port, the liquid inlet is arranged at the bottom of the tank body, and the overflow port is arranged at the top of the side wall of the tank body; the liquid inlet is connected with a liquid inlet pipe; a pipeline mixer is also arranged in the middle of the liquid inlet pipe, and the mother liquor and the impurity removing agent are premixed in the pipeline mixer and then injected into the tank body through the liquid inlet; the lateral wall of the tank body is also provided with at least one liquid injection port, and the liquid injection port is used for adding an impurity removing agent. The utility model discloses a distributed injection edulcoration agent of a plurality of position can effectively avoid the part to go out the mother liquor because of instantaneous and excessive edulcoration agent reaction cause the tombarthite loss, improves the tombarthite rate of recovery.
Description
Technical Field
The utility model relates to a hydrometallurgy technical field especially relates to a rare earth ore leaches mother liquor processing apparatus.
Background
At present, the mining of ion adsorption type rare earth ore usually adopts the methods of ammonium sulfate in-situ leaching, ammonium bicarbonate impurity removal and precipitation enrichment, mainly utilizes the topographic characteristics, directly excavates and builds a large number of impurity removal tanks and sedimentation tanks which are arranged in steps, and has the characteristics of large occupied area, poor mobility and the like.
Chinese patent publication No. CN205115570U, published japanese 2016.3.30 discloses an integration ion tombarthite hydrometallurgy system, including inclosed edulcoration remove device, tombarthite precipitation device and ammonia recovery unit, mother liquor feed liquor pipe access edulcoration remove device, the mother liquor delivery pipe access of edulcoration remove device the tombarthite precipitation device. Impurity remove device includes reaction zone and solid-liquid separation district, mother liquor feed liquor pipe inserts the reaction zone, and install dosing pipe and automatic reagent feeding device on the mother liquor feed liquor pipe, the intersection of dosing pipe and mother liquor feed liquor pipe is equipped with the pipeline mixer. And an online PH monitoring device and a stirrer are arranged in the reaction zone. The mother liquor is mixed by a pipeline mixer and then is connected to the bottom of the reaction zone, and after being fully stirred by a stirrer and reacted, the mother liquor overflows from the reaction zone into the solid-liquid separation zone. Although this patent has realized that equipment ization, the mobilization in hydrometallurgy workshop, but in order to satisfy the demand of abundant reaction, must once only add sufficient amount of ammonium bicarbonate in the line mixer, cause the ammonium bicarbonate content in local mother liquor too high easily, and then greatly increased the tombarthite loss rate. In addition, what detection device adopted in this patent is PH on-line measuring device, in the actual production application, because the edulcoration process produces a large amount of aluminium hydrate can adhere on pH induction motor's glass head, causes the equipment inefficacy, and then leads to the process monitoring inefficacy, can't realize full automatization operation, needs the manual work to carry out frequent maintenance or direct manual detection to detection device.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tombarthite ore leaching mother liquor processing apparatus to solve local mother liquor and have the problem of higher content's edulcoration agent or precipitant, reach tombarthite loss rate greatly reduced's effect.
A rare earth ore leaching mother liquor treatment device comprises a tank body, wherein a stirring device is installed at the top of the tank body, a stirring shaft of the stirring device extends into the tank body, and a stirrer is installed on the stirring shaft to stir a solution in the tank body; the tank body is provided with a liquid inlet and an overflow port, the liquid inlet is arranged at the bottom of the tank body, and the overflow port is arranged at the top of the side wall of the tank body; the liquid inlet is connected with a liquid inlet pipe; a pipeline mixer is also arranged in the middle of the liquid inlet pipe, and the mother liquor and the impurity removing agent are premixed in the pipeline mixer and then injected into the tank body through the liquid inlet; the lateral wall of the tank body is also provided with at least one liquid injection port, and the liquid injection port is used for adding an impurity removing agent.
In a preferred embodiment, the projections of the liquid injection port and the liquid inlet on the horizontal plane are uniformly distributed around the central axis of the tank body.
In a preferred embodiment, the liquid filling port and the liquid inlet are uniformly distributed along the vertical direction of the tank body.
In a preferred embodiment, the liquid injection ports are two and are respectively positioned at the 1/3 and 2/3 height positions of the can body.
In a preferred embodiment, the liquid injection ports are three and are respectively positioned at the 1/4, 2/4 and 3/4 height positions of the can body.
In a preferred embodiment, the bottom of the tank body is provided with a bubbling device, the bubbling device is disc-shaped, air holes are uniformly distributed on the surface of the bubbling device, and the bubbling device adopts inert gas such as nitrogen and the like.
In a preferred embodiment, the tank is provided with a detection device, and the detection device is a pH online detection device or an Al ion online detection device. Preferably, the detection device adopts an Al ion online detection device, can be an X fluorescence analyzer (XRF) or an Atomic Absorption Spectrometer (AAS) or ICP-OES or ICP-MS, has the characteristics of sensitivity, high accuracy, no pollution by aluminum hydroxide and the like, and provides a foundation for full-automatic treatment of the rare earth ore leaching mother liquor.
In a preferred embodiment, the stirring shaft of the stirring device is provided with a plurality of stirrers along the axial direction.
In a preferred embodiment, the agitator is a three-lobe propeller agitator.
In a preferred embodiment, there are three of the agitators.
The technical effects of the utility model reside in that:
1. adopt the distributed edulcoration agent of pouring into of a plurality of position, mix into partial edulcoration agent in advance with the line mixer promptly earlier, recycle jar body lateral wall dispersed notes liquid mouth and pour into the edulcoration agent, not only can improve mixing efficiency, shorten the mix time, more importantly can effectively avoid some rare earth ore to leach mother liquor and cause the rare earth loss rate to increase because of instantaneous and excessive edulcoration agent reaction.
2. The liquid injection ports are arranged in a staggered manner in the longitudinal direction and the circumferential direction of the tank body, so that the full reaction of the impurity removing agent and the mother liquor is promoted.
3. The agitator comprises a plurality of agitators, can drive solution and roll from top to bottom, improves the stirring rate to solution, and then accelerates efficiency.
4. The bubbling device is additionally arranged at the bottom of the tank body, and the impurity removing agent and the mother liquor are fully reacted by utilizing the driving force of bubbles and the dual action of the stirrer, so that the reaction efficiency is improved, and the reaction period is shortened.
It should be understood that the statements herein are not intended to identify key or critical features of any embodiment of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a projection of the liquid injection port of embodiment 1 of the present invention on a horizontal plane;
fig. 3 is a schematic structural view of embodiment 5 of the present invention;
wherein, 21 the tank body; 211 liquid inlet; 212 overflow port; 213 liquid inlet pipe; 214 a mixing pipe machine; 215 liquid injection port; 22 a stirring device; a 221 motor; 222 stirring shaft; 223 a stirrer; 23 a detection device; 24 bubbling device.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, a rare earth ore leaching mother liquor treatment device, which can be used as both an impurity removal tank and a precipitation tank for rare earth leaching mother liquor, comprises a tank 21, wherein a stirring device 22 is installed at the top of the tank, a stirring shaft 222 of the stirring device 22 extends into the tank 21, and a stirrer 223 is installed on the stirring shaft 222 to stir the solution in the tank 21. The stirrer 223 is a three-blade push type stirrer, and the push type stirrer can drive materials to roll up and down to ensure the uniformity of reaction.
The tank body 21 is provided with a liquid inlet 211 and an overflow port 212, the liquid inlet 212 is arranged at the bottom of the side wall of the tank body 21, and the overflow port 212 is arranged at the top of the side wall of the tank body 21. Wherein, the liquid inlet 211 is connected with a liquid inlet pipe 213; a pipeline mixer 214 is arranged in the middle of the liquid inlet pipe 211, and the mother liquid and the impurity removing agent are premixed in the pipeline mixer 214 and then injected into the tank body 21 through the liquid inlet 211.
The side wall of the tank body 21 is also provided with at least one liquid injection port 215, and the liquid injection port 215 is used for adding an impurity removing agent. The number of the liquid injection ports 215 may be 1, 2, 3, 4, 5, 6, 7 or more, preferably 4 to 6, the number of the liquid injection ports 215 is suitable, and too many liquid injection ports 215 increase the sealing and piping cost of the equipment. The liquid injection ports 215 may be uniformly distributed on the same horizontal plane and around the central axis of the can body 21; each liquid injection port 215 is not positioned on the same horizontal plane, but distributed along the vertical direction of the tank 21; the two liquid injection ports 215 adjacent to each other in the vertical direction can be uniformly spaced, and the projections of the liquid injection ports and the liquid inlet 211 on the horizontal plane are uniformly distributed around the central axis of the tank body 21, and the vertical and horizontal staggered arrangement is more favorable for improving the mixing uniformity and the mixing efficiency. Impurity removing agents are injected in a scattered mode at multiple point positions, namely, a pipeline mixer is used for premixing partial impurity removing agents, then the impurity removing agents are injected through the dispersed liquid injection ports 215 in the side wall of the tank body 21, and rare earth loss rate increase caused by instantaneous reaction of partial mother liquid and excessive impurity removing agents can be effectively avoided.
Preferably, the tank body 21 is further provided with a detection device 23, the detection device 23 is a pH online detection device or an Al ion online detection device, so that the rare earth ore leaching mother liquor treatment system can automatically monitor pH or Al ions online, and automatic operation of the process can be realized.
Example 1
As shown in figure 1, the rare earth ore leaching mother liquor treatment device comprises a tank 21, and a stirring device 22 is arranged at the top of the tank 21. The motor 221 of the stirring device 22 is installed on the top of the tank body 21, the stirring shaft 222 of the stirring device extends into the tank body 21, the stirring shaft 222 is provided with three stirrers 223 along the axial direction thereof, and the stirring force can be increased by cooperatively stirring the solution in the tank body 21 through the stirrers 223, so that the stirring efficiency is improved.
The tank body 21 is provided with a liquid inlet 211 and an overflow port 212, the liquid inlet 211 is arranged at the bottom of the side wall of the tank body 21, and the overflow port 212 is arranged at the top of the side wall of the tank body 21. Wherein, the liquid inlet 211 is connected with a liquid inlet pipe 213; a pipeline mixer 214 is also arranged in the middle of the liquid inlet pipe 213, and the mother liquid and the impurity removing agent are pre-mixed in the pipeline mixer 214 and then injected into the tank body 21 through a liquid inlet 211.
The side wall of the tank 21 is further provided with 2 liquid filling ports 215, one liquid filling port 215 is positioned at the height of the tank 1/3, the other liquid filling port 215 is positioned at the height of the tank 2/3, and as shown in fig. 2, the liquid inlet 211 and the two liquid filling ports 215 are circumferentially distributed along the central axis of the tank 21 in the projection of the horizontal plane.
The tank body 21 is also provided with a pH on-line detection device 23.
Application test of this example:
(1) press 20m 3 The rare earth ore leaching mother liquor was supplied to the line mixer 214 at a flow rate of 0.8 m/h while supplying the rare earth ore leaching mother liquor to the line mixer 214 3 Injecting an impurity removing agent at the flow speed of/h, pre-mixing the mother liquor and the impurity removing agent in a pipeline mixer 214, and then conveying the pre-mixed mother liquor and the impurity removing agent to the tank 21;
(2) the two liquid injection ports 215 are both 0.5m 3 Injecting an impurity removing agent into the tank body 21 at a flow speed of/h, and mixing and stirring to obtain a mixed solution;
(3) and (3) continuing the steps (1) and (2) until the tank body 21 is filled, stopping the stirring device 22 during the period of uninterrupted operation and continuously operating for 1 hour after the tank body 21 is filled, and measuring and calculating the rare earth loss rate.
Example 2
This example differs from example 1 in that the side wall of the can body 21 is further provided with 3 pouring outlets 215, and the 3 pouring outlets are all located at the height of the can body 1/2 and are evenly distributed around the central axis of the can body 21.
Therefore, in the application test of the present embodiment, the flow rate of supplying the impurity removing agent to the line mixer 214 was 0.6m 3 H, the flow rate of the impurity removing agent supplied from the liquid inlet 215 is 0.4m 3 /h。
Rare earth loss rates were also measured and calculated.
Example 3
The difference between this embodiment and embodiment 1 is that the side wall of the can body 21 is further provided with 3 liquid filling ports 215, one liquid filling port 215 is located at the height of the can body 1/4, one liquid filling port 215 is located at the height of the can body 2/4, one liquid filling port 215 is located at the height of the can body 3/4, and the liquid inlet 211 and the three liquid filling ports 215 are distributed circumferentially around the central axis of the can body 21 in the projection of the horizontal plane.
Therefore, in the application test of the present embodiment, the flow rate of supplying the impurity removing agent to the line mixer 214 was 0.6m 3 H, the flow rate of the impurity removing agent supplied from the liquid inlet 215 is 0.4m 3 /h。
Rare earth loss rates were also measured and calculated.
Example 4
This example differs from example 1 in that the side wall of the can body 21 is further provided with 6 pouring ports 215, and the 6 pouring ports are all located at the height of the can body 1/2 and are evenly distributed along the central axis of the can body 21.
Therefore, in the application test of the present embodiment, the flow rate of supplying the impurity removing agent to the line mixer 214 was 0.6m 3 H, the flow rate of the impurity removing agent supplied from the liquid inlet 215 is 0.2m 3 /h。
Rare earth loss rates were also measured and calculated.
Example 5
As shown in fig. 3, the present embodiment is different from embodiment 1 in that a bubbling device 24 is installed at the bottom inside the tank 21.
Comparative example
This comparative example differs from example 1 in that the side wall of the can body 21 is not provided with any pouring port.
Therefore, in conducting the application test of this comparative example, the flow rate of supplying the impurity removing agent to the line mixer 214 was 1.8m 3 /h。
The rare earth loss rate was also measured.
The rare earth loss rate of examples 1 to 4 and comparative example was measured by EDTA volumetric method, which was calculated as follows: the rare earth loss rate (in-time rare earth concentration-out-time rare earth concentration)/in-time rare earth concentration is 100%, the in-time rare earth concentration is the rare earth concentration measured at the front position of the mixing pipeline device, and the out-time rare earth concentration is the rare earth concentration measured at the overflow port. The specific measurement results are detailed in table 1.
TABLE 1 results of rare earth loss rate measurement of examples 1 to 4 and comparative examples
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example | |
| Loss of rare earth | 4.52％ | 3.62％ | 3.10％ | 3.05％ | 6.46％ |
It can be seen from table 1 that the impurity removing agent is injected dispersedly at a plurality of points, which indeed has a good effect on reducing the rare earth loss rate.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a rare earth ore leaches mother liquor processing apparatus which characterized in that: the tank comprises a tank body, wherein a stirring device is arranged at the top of the tank body, a stirring shaft of the stirring device extends into the tank body, and a stirrer is arranged on the stirring shaft to stir the solution in the tank body; the tank body is provided with a liquid inlet and an overflow port, the liquid inlet is arranged at the bottom of the tank body, and the overflow port is arranged at the top of the side wall of the tank body; the liquid inlet is connected with a liquid inlet pipe; a pipeline mixer is also arranged in the middle of the liquid inlet pipe, and the mother liquor and the impurity removing agent are premixed in the pipeline mixer and then injected into the tank body through the liquid inlet; the lateral wall of the tank body is also provided with at least one liquid injection port, and the liquid injection port is used for adding an impurity removing agent.
2. The rare earth ore leaching mother liquor treatment plant according to claim 1, characterized in that: the projections of the liquid injection port and the liquid inlet on the horizontal plane are uniformly distributed around the central axis of the tank body.
3. The rare earth ore leaching mother liquor treatment plant according to claim 2, characterized in that: the liquid injection port and the liquid inlet are uniformly distributed along the vertical direction of the tank body.
4. The rare earth ore leaching mother liquor treatment plant according to claim 3, wherein: the liquid injection ports are two and are respectively positioned at the 1/3 and 2/3 heights of the tank body.
5. The rare earth ore leaching mother liquor treatment plant according to claim 3, wherein: the liquid injection ports are three and are respectively positioned at the 1/4, 2/4 and 3/4 height positions of the tank body.
6. The rare earth ore leaching mother liquor treatment plant according to claim 1, characterized in that: and a bubbling device is arranged at the bottom in the tank body.
7. The rare earth ore leaching mother liquor treatment plant according to any one of claims 1 to 6, wherein: the detection device is installed on the side wall of the tank body and is a pH online detection device or an Al ion online detection device.
8. The rare earth ore leaching mother liquor treatment plant according to claim 7, wherein: a plurality of stirrers are axially arranged on a stirring shaft of the stirring device.
9. The rare earth ore leaching mother liquor treatment plant according to claim 8, wherein: the stirrer is a three-blade propeller stirrer.
10. The rare earth ore leaching mother liquor treatment plant according to claim 9, characterized in that: there are three of the stirrers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220748363.3U CN217324235U (en) | 2022-03-31 | 2022-03-31 | Rare earth ore leaches mother liquor processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220748363.3U CN217324235U (en) | 2022-03-31 | 2022-03-31 | Rare earth ore leaches mother liquor processing apparatus |
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| CN217324235U true CN217324235U (en) | 2022-08-30 |
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| CN202220748363.3U Active CN217324235U (en) | 2022-03-31 | 2022-03-31 | Rare earth ore leaches mother liquor processing apparatus |
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- 2022-03-31 CN CN202220748363.3U patent/CN217324235U/en active Active
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