Powder coprecipitation system for preparing rare earth

Abstract

The utility model relates to the technical field of rare earth preparation equipment, and provides a powder coprecipitation system for preparing rare earth, which comprises a water bath device, a reaction device and a reagent container, the reaction device comprises a reaction container, a water bath interlayer is arranged outside the reaction container, the water bath interlayer is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with each other. A water bath space used for containing water bath water is defined by the water bath device, the water bath space is provided with an opening so that the reagent container can enter the water bath space, and the water bath device is provided with a water pump so that the water bath water in the water bath space can be input into the water bath interlayer. The liquid outlet is used for being communicated with the water bath space through a pipeline, and the reagent container is used for inputting a reagent into the reaction container. The utility model aims to provide a powder coprecipitation system for preparing rare earth, which has a better constant temperature effect.

Description

Technical Field

[0001] This utility model relates to the field of rare earth preparation equipment technology, specifically to a powder co-precipitation system for preparing rare earths. Background Technology

[0002] Rare earth elements are known as "industrial vitamins," exhibiting superior performance, particularly in applications such as aerospace, optical glass, ceramics, and magnetic materials. Rare earth oxide powders are primarily used in the manufacture of microwave magnetic materials, and can also be used as glass colorants, magnetic alloy materials, laser technology materials, luminescent materials, permanent magnet materials, and superconducting materials. They can also be used to manufacture high-temperature, heat-resistant alloys. Currently, the main methods for preparing rare earth oxide powders are liquid-phase precipitation and spray granulation. Spray granulation can obtain uniform rare earth oxide powders with controllable bulk density, particle size, and morphology; however, this method is costly and economically inefficient. In comparison, liquid-phase precipitation is a more common preparation method. The liquid-phase precipitation process typically requires heating the reagents in a water bath to provide a stable temperature environment, thereby promoting precipitation formation. Simultaneously, the reaction temperature must be controlled to ensure the reaction proceeds at a suitable temperature.

[0003] Existing liquid-phase precipitation preparation equipment typically places the reaction vessel in a water bath for heating. This method requires external reagents to enter the reaction vessel for water bath heating, and the reagent temperature is not constant as it rises within the reaction vessel. Therefore, it is necessary to propose a powder co-precipitation system with better temperature control for the preparation of rare earth elements. Utility Model Content

[0004] The main purpose of this invention is to provide a powder co-precipitation system for preparing rare earths with better temperature control.

[0005] To achieve the above objectives, this utility model proposes a powder co-precipitation system for preparing rare earth elements, comprising a water bath device, a reaction device, and a reagent container. The reaction device includes a reaction vessel, and a water bath jacket is provided outside the reaction vessel. The water bath jacket is provided with an inlet and an outlet. The water bath device encloses a water bath space for containing water for the water bath. The water bath space is open to allow the reagent container to enter the water bath space. The water bath device is equipped with a water pump to input the water for the water bath space into the water bath jacket. The outlet is used to connect to the water bath space through a pipe. The reagent container is used to input reagents into the reaction vessel.

[0006] Preferably, the reaction vessel is a reaction vessel, which includes a vessel body, a vessel lid, and connecting elements. The top of the vessel body is open, and the connecting elements are used to fix the vessel lid to the vessel body to close the opening. The vessel lid has a reagent inlet formed through it along the thickness direction of the lid body.

[0007] Preferably, the reaction apparatus further includes a stirring component, which includes a stirring element, a connecting element, and a driving element. The stirring element is disposed inside the vessel body, and the driving element is disposed outside the vessel body. The driving element is connected to the stirring element through the connecting element to drive the stirring element to stir the reagents in the reaction vessel. The vessel lid has a stirring through hole formed along the thickness direction of the lid body, and the two ends of the connecting element pass through the stirring through hole.

[0008] Preferably, the vessel lid has a temperature detection port, a pH detection port, and a speed detection port formed vertically for installing a temperature detection element. A temperature detection tube for installing a temperature detection element is fixedly inserted through the temperature detection port, a pH detection tube for installing a pH detection element is fixedly inserted through the pH detection port, and a speed detection tube for installing a speed detection element is fixedly inserted through the speed detection port.

[0009] Preferably, the lid of the vessel has a reagent inlet and an exhaust port formed vertically, the reagent inlet is fixedly provided with a reagent inlet pipe for the reagent to pass through, the exhaust port is fixedly provided with an exhaust pipe, and the bottom of the vessel is connected to a discharge valve.

[0010] Preferably, the powder co-precipitation system for preparing rare earth further includes a support component, which includes a support plate and multiple support rods. Each support rod is connected to the support plate to support the support plate away from the ground. The side of the support plate facing away from the ground is used to place the reaction vessel.

[0011] Preferably, multiple reaction devices are provided, each with the same structure, but the reaction containers of each reaction device have different volumes that can hold reagents.

[0012] Preferably, the powder co-precipitation system for preparing rare earth further includes two water supply pipes, the outlet is connected to the water bath space through one of the water supply pipes, the inlet of the water pump is connected to the bottom of the water bath space, and the outlet of the water pump is connected to the inlet through the other water supply pipe.

[0013] Preferably, there are multiple reagent containers, and each reagent container is equipped with an infusion pump to input the reagent in the corresponding reagent container into the reaction vessel. The vessel lid is provided with multiple reagent inlets, and each reagent inlet is configured to correspond one-to-one with a reagent container.

[0014] Preferably, the vessel body includes a first shell and a second shell spaced outside the first shell, the first shell and the second shell together forming the water bath jacket, and the liquid inlet and the liquid outlet are respectively located in the second shell.

[0015] In the technical solution of this utility model, the water bath device is provided so that the reagent container can be partially immersed in the water bath water in the water bath space, thereby heating the reagent in the reagent container. The water bath jacket is provided so that the water bath water in the water bath space is input into the water bath jacket by a water pump, thereby heating the reagent in the reaction vessel.

[0016] Because the reagents in the reagent container are preheated, the temperature of the reagents is more constant. Furthermore, the water bath jacket draws water from the water bath space, so the temperature of the water bath jacket is close to that of the water bath space, which can better ensure the constant temperature of the reagents and improve the temperature control effect of the system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an embodiment of the powder coprecipitation system for preparing rare earths according to this utility model.

[0019] Explanation of icon numbers:

[0020] 1-Bottle body; 1a-Inlet; 1b-Outlet; 2-Bottle cover; 21-Stirring hole; 22-Temperature detection tube; 23-pH detection tube; 24-Exhaust port; 25-Reagent inlet; 26-Speed ​​detection tube; 3-Water bath jacket; 4-Discharge valve; 5-Reagent container; 6-Support rod; 7-Support plate; 8-Wheel caster; 9-Drive element; 10-Connecting element; 11-Main stirring paddle; 12-Secondary stirring paddle; 13-Universal joint; 14-Water pump; 15-Infusion pump; 16-Water bath device; 17-Main control panel.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This invention proposes a powder co-precipitation system for preparing rare earth elements.

[0028] Please refer to Figure 1This rare earth powder co-precipitation system includes a water bath device 16, a reaction device, and a reagent container 5. The reaction device includes a reaction vessel, and a water bath jacket 3 is provided outside the reaction vessel. The water bath jacket 3 is provided with an inlet 11a and an outlet 11b. The water bath device 16 encloses a water bath space for containing water for the water bath. The water bath space is open so that the reagent container 5 can enter the water bath space. The water bath device 16 is provided with a water pump 14 to input the water for the water bath space into the water bath jacket 3. The outlet 11b is used to communicate with the water bath space through a pipe. The reagent container 5 is used to input reagents into the reaction vessel. In this embodiment, the inlet 11a of the water bath jacket 3 is located at the lower part of one side of the water bath jacket 3, and the outlet 11b of the water bath jacket 3 is located at the upper part of the other side of the water bath jacket 3. The water bath device 16 is provided with an electric heating element.

[0029] In the technical solution of this utility model, the water bath device 16 is provided, which can immerse the reagent container 5 in the water bath in the water bath space, thereby heating the reagent in the reagent container 5. The water bath jacket 3 is provided, and the water bath in the water bath space is input into the water bath jacket 3 by the water pump 14, thereby heating the reagent in the reaction vessel.

[0030] Because the reagent in reagent container 5 is preheated, the temperature of the reagent is more constant. Furthermore, the water bath jacket 3 draws water from the water bath space, so the temperature of the water bath jacket 3 is close to that of the water bath space, which can better ensure the constant temperature of the reagent and improve the temperature control effect of the system.

[0031] Preferably, the reaction vessel is a reaction kettle, which includes a kettle body 1, a kettle lid 2, and a connecting element 10. The kettle body 1 has an opening at its top, and the connecting element 10 is used to fix the kettle lid 2 to the kettle body 1 to close the opening. The kettle lid 2 has a reagent inlet 25 extending through it along the thickness direction of the lid body. In this embodiment, the connecting element 10 is a ring-shaped structure, which is used to press the kettle lid 2 tightly against the opening of the kettle body 1. The reaction vessel also includes a sealing ring, which is used to be disposed between the kettle body 1 and the kettle lid 2 to seal the gap between the kettle body 1 and the kettle lid 2. The bottom of the reaction kettle protrudes in an arc shape away from the top of the reaction kettle.

[0032] Preferably, the reaction apparatus further includes a stirring component, which includes a stirring element, a connecting element 10, and a driving element 9. The stirring element is disposed inside the vessel body 1, and the driving element 9 is disposed outside the vessel body 1. The driving element 9 is connected to the stirring element through the connecting element 10 to drive the stirring element to agitate the reagents in the reaction vessel. The vessel cover 2 has a stirring through hole 21 formed through it along the thickness direction of the cover body. The two ends of the connecting element 10 pass through the stirring through hole 21. In this embodiment, the driving element 9 includes a drive motor and a frequency converter. The shaft of the drive motor is concentrically arranged with the connecting element 10. The stirring element includes a main stirring blade 11 and a secondary stirring blade 12. The main stirring blade 11 is concentrically fitted at the end of the connecting element 10 opposite to the driving element 9. The secondary stirring blade 12 is concentrically fitted between the two ends of the connecting element 10 and can be manually driven to move along the length direction of the connecting element 10. A universal joint 13 is also provided between the driving element 9 and the connecting element 10.

[0033] Specifically, the reaction device for a 10L volume reaction vessel is equipped with a 250W drive motor and a 700W frequency converter; the reaction device for a 50L volume reaction vessel is equipped with a 400W drive motor and a 1.5kW frequency converter; and the reaction device for a 100L volume reaction vessel is equipped with a 750W drive motor and a 1.5kW frequency converter. The speed range of the drive motor is 0 to 300 rpm.

[0034] Preferably, the vessel lid 2 has a vertically extending temperature detection port 22, a pH detection port 23, and a velocity detection port 26 for mounting temperature detection elements. A temperature detection tube 22 for mounting the temperature detection element is fixedly inserted through the temperature detection port 22; a pH detection tube 23 for mounting the pH detection element is fixedly inserted through the pH detection port 23; and a velocity detection tube 26 for mounting the velocity detection element is fixedly inserted through the velocity detection port 26. The temperature detection element is used to detect the temperature of the reagents inside the reaction vessel, the pH detection element is used to detect the pH value of the reagents inside the reaction vessel, and the velocity detection element is used to detect the flow rate of the reagents inside the reaction vessel.

[0035] Preferably, the vessel lid 2 has a reagent inlet 25 and an exhaust port 24 extending vertically through it. The reagent inlet 25 is fixedly fitted with a reagent inlet pipe for reagent passage, and the exhaust port 24 is fixedly fitted with an exhaust pipe. The bottom of the vessel body 1 is connected to a discharge valve 4. The exhaust port 24 is provided to discharge gas from the reaction vessel in a timely manner, preventing excessive pressure inside the reaction vessel. In this embodiment, the temperature detection tube 22, the pH detection tube 23, the speed detection tube 26, the reagent inlet pipe, and the exhaust pipe are each equipped with a corresponding sealing element. Specifically, the sealing element is a sleeve, with one end open and the other end closed. The discharge valve 4 is a PTFE (polytetrafluoroethylene) component.

[0036] Preferably, the powder co-precipitation system for preparing rare earths further includes a support component, which includes a support plate 7 and multiple support rods 6. Each support rod 6 is connected to the support plate 7 to support the support plate 7 away from the ground. The side of the support plate 7 facing away from the ground is used to place the reaction vessel. The support component supports the reaction vessel away from the ground, facilitating observation of the interior of the reaction vessel by the operator. In this embodiment, the bottom of each support rod 6 is equipped with casters 8, and the casters 8 are equipped with locking elements.

[0037] Preferably, multiple reaction devices are provided, each with the same structure, but the reaction containers of each device have different volumes capable of holding reagents. The different volumes of reaction containers meet different experimental requirements. In this embodiment, three reaction devices are provided, with reaction containers having volumes of 10L, 50L, and 100L, respectively, for small-scale, pilot-scale, and large-scale preparation of rare earth powder materials.

[0038] Each reaction device is equipped with a speed control panel to display and control the speed of the drive motor of the corresponding reaction device. Each reaction device is equipped with a temperature control panel to display and control the temperature of the reagents in the corresponding reaction device. Each reaction device is equipped with a pH control panel to display and control the pH value of the reagents in the corresponding reaction device. The water bath device 16 is equipped with a temperature control panel to display the temperature of the water in the water bath space and control the power of the heating element, thereby controlling the temperature of the water in the water bath space. The water bath device 16 is also equipped with an emergency switch and a power switch. All the temperature control panels, pH control panels, speed control panels, temperature control panels, emergency switches and power switches are integrated on a main control panel 17.

[0039] Preferably, the powder co-precipitation system for preparing rare earths further includes two water supply pipes. The outlet 11b is connected to the water bath space through one of the water supply pipes, the inlet of the water pump 14 is connected to the bottom of the water bath space, and the outlet of the water pump 14 is connected to the inlet 11a through the other water supply pipe. In this embodiment, the water supply pipes are provided with a heat insulation layer.

[0040] Preferably, multiple reagent containers 5 are provided, and each reagent container 5 is equipped with an infusion pump 15 to input the reagent in the corresponding reagent container 5 into the reaction vessel. The vessel lid 2 is provided with multiple reagent inlets 25, and each reagent inlet 25 is configured to correspond one-to-one with a reagent container 5. Multiple reagent containers 5 are provided to hold different reagents; in this embodiment, two reagent containers 5 are provided, and the infusion pump 15 is a peristaltic pump.

[0041] Preferably, the vessel body 1 includes a first shell and a second shell spaced outside the first shell, the first shell and the second shell together forming the water bath jacket 3, and the liquid inlet 11a and the liquid outlet 11b are respectively disposed in the second shell. In this embodiment, the vessel body 1 and the vessel lid 2 are glass structural components.

[0042] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A powder co-precipitation system for preparing rare earth elements, characterized in that, The device includes a water bath, a reaction apparatus, and a reagent container. The reaction apparatus includes a reaction vessel with a water bath jacket surrounding it. The water bath jacket has an inlet and an outlet. The water bath apparatus encloses a water bath space for containing water for the water bath. The water bath space has an opening to allow the reagent container to enter the water bath space. The water bath apparatus is equipped with a water pump to input the water for the water bath space into the water bath jacket. The outlet is used to connect to the water bath space through a pipe. The reagent container is used to input reagents into the reaction vessel.

2. The powder coprecipitation system for preparing rare earths according to claim 1, characterized in that, The reaction vessel is a reaction vessel, which includes a vessel body, a vessel lid, and connecting elements. The top of the vessel body is open, and the connecting elements are used to fix the vessel lid to the vessel body to close the opening. The vessel lid has a reagent inlet formed through it along the thickness direction of the lid body.

3. The powder co-precipitation system for preparing rare earth elements according to claim 2, characterized in that, The reaction apparatus further includes a stirring component, which includes a stirring element, a connecting element, and a driving element. The stirring element is disposed inside the vessel body, and the driving element is disposed outside the vessel body. The driving element is connected to the stirring element through the connecting element to drive the stirring element to stir the reagents in the reaction vessel. The vessel lid has a stirring through hole formed along the thickness direction of the lid body, and the two ends of the connecting element pass through the stirring through hole.

4. The powder coprecipitation system for preparing rare earths according to claim 3, characterized in that, The vessel lid has a vertically penetrating temperature detection port, a pH detection port, and a speed detection port for installing temperature detection elements. A temperature detection tube for installing temperature detection elements is fixedly inserted through the temperature detection port. A pH detection tube for installing pH detection elements is fixedly inserted through the pH detection port. A speed detection tube for installing speed detection elements is fixedly inserted through the speed detection port.

5. The powder co-precipitation system for preparing rare earths according to claim 4, characterized in that, The lid of the vessel has a vent formed through it in the vertical direction. The reagent inlet is fixedly provided with a reagent inlet pipe for the reagent to pass through. The vent is fixedly provided with an exhaust pipe. The bottom of the vessel is connected to a discharge valve.

6. The powder coprecipitation system for preparing rare earths according to claim 1, characterized in that, It also includes a support component, which includes a support plate and multiple support rods. Each support rod is connected to the support plate to support the support plate away from the ground. The side of the support plate facing away from the ground is used to place the reaction vessel.

7. The powder coprecipitation system for preparing rare earths according to claim 1, characterized in that, The reaction apparatus is provided in multiple ways, each with the same structure, but the reaction container of each reaction apparatus has a different volume that can hold reagents.

8. The powder coprecipitation system for preparing rare earths according to claim 1, characterized in that, It also includes two water supply pipes. The outlet is connected to the water bath space through one of the water supply pipes. The inlet of the water pump is connected to the bottom of the water bath space. The outlet of the water pump is connected to the inlet through the other water supply pipe.

9. The powder co-precipitation system for preparing rare earths according to claim 2, characterized in that, The reagent container is provided in multiple ways, and each reagent container is provided with an infusion pump to input the reagent in the corresponding reagent container into the reaction vessel. The vessel lid is provided with multiple reagent inlets, and each reagent inlet is provided in a one-to-one correspondence with a reagent container.

10. The powder coprecipitation system for preparing rare earths according to claim 2, characterized in that, The vessel body includes a first shell and a second shell spaced outside the first shell. The first shell and the second shell together form the water bath jacket. The liquid inlet and the liquid outlet are respectively located in the second shell.

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