Mixing equipment and mixing method for rare earth metal preparation

Abstract

The invention belongs to the technical field of rare earth metal preparation, and particularly relates to rare earth metal preparation mixing equipment and a mixing method.The rare earth metal preparation mixing equipment comprises a tank body, a stirring mechanism and a grinding mechanism, the stirring mechanism is arranged at the upper end of the tank body, extends into the tank body and is rotationally connected with the tank body, the grinding mechanism comprises a shell and a grinding disc, and the shell is slidably connected into the tank body; a grinding cavity and a mixing cavity are formed in the shell, the upper end of the grinding cavity is open, the lower end of the mixing cavity is open, the grinding disc is arranged on the stirring mechanism and rotationally connected to the grinding cavity, the grinding disc is in a conical shape inclined from middle to outside, and the upper end face of the grinding cavity corresponds to the inclined face of the grinding disc. And a crushing channel is formed between the upper end surface and the inclined surface. The grinding mechanism can adjust the size of a grinding channel formed in the tank body to achieve the required rare earth metal raw material granularity, so that the quality of a subsequent mixed material finished product is improved, and the specification of the rare earth metal raw material is controllable to meet the requirements of a modern production process.

Description

Technical Field

[0001] The invention belongs to the technical field of rare earth metal preparation, and in particular relates to a rare earth metal preparation mixing device and a mixing method. Background Art

[0002] Rare earth metals, also known as rare earth elements or rare metals, are a general term for 17 elements in the scandium, yttrium and lanthanide series in Group IIIB of the periodic table. In the preparation process of rare earth metals, they need to be mixed by a mixer.

[0003] For example, the patent number is CN202223329973.9, and the patent name is a metal samarium preparation mixer, which discloses a mixing pretreatment box; four shock absorbers, which are all installed at the bottom of the mixing pretreatment box, and two feed guide plates are fixedly connected in the mixing pretreatment box; a pre-mixing crushing mechanism, which is installed in the mixing pretreatment box and is used to crush the mixture of lanthanum chips and samarium oxide rare earth powder before mixing, and other technical features;

[0004] The invention has the following technical characteristics: the feed guide plate fixedly connected in the mixing pretreatment box is used to guide the mixture raw material of lanthanum chips and samarium oxide rare earth powder to fall into the pre-mixing crushing mechanism; the pre-mixing crushing mechanism installed in the mixing pretreatment box is used to crush the mixture raw material of lanthanum chips and samarium oxide rare earth powder before mixing, so that the lanthanum chips and samarium oxide rare earth powder are automatically mixed and caked instead of manpower, the labor degree of operators is reduced, and the degree of automation is high.

[0005] However, the technical problem or technical defect is that the crushing mechanism before mixing cannot crush the rare earth metal raw materials to the specified particle size, which affects the quality of the subsequent mixed product. The size of the crushed rare earth metal raw materials is uncontrollable and not suitable for the production process requirements. Therefore, based on the above defects, the applicant has proposed a better technical solution to solve the above technical problems.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The present invention aims to solve the above-mentioned technical problems and provides a rare earth metal preparation mixing equipment and a mixing method, which mainly solves the technical problems in the prior art that the crushing mechanism before mixing cannot crush the rare earth metal raw materials to a specified particle size, thereby affecting the quality of the subsequent mixed product, and the specifications of the crushed rare earth metal raw materials are uncontrollable and not suitable for the production process requirements.

[0008] To achieve the above object, the technical solution of the present invention is:

[0009] A rare earth metal preparation and mixing equipment comprises a tank body, a stirring mechanism and a crushing mechanism, wherein the upper and lower ends of the tank body are respectively provided with a feed inlet and a discharge outlet.

[0010] The stirring mechanism is arranged at the upper end of the tank body and extends into the interior of the tank body and is rotatably connected thereto.

[0011] The crushing mechanism comprises a shell and a crushing disk, wherein the shell is vertically slidably connected to the tank body through a guide rail, a crushing chamber and a mixing chamber are provided in the shell, and the crushing chamber is located above the mixing chamber, the upper end of the crushing chamber is open, and the lower end of the mixing chamber is open.

[0012] The crushing disk is arranged on the stirring mechanism and is rotatably connected to the crushing chamber. The crushing disk is in a conical shape inclined from the center to the outside. The upper end surface of the crushing chamber is arranged corresponding to the inclined surface of the crushing disk, and a crushing channel is formed between the upper end surface and the inclined surface.

[0013] Preferably, a plurality of annular protrusions are arranged at intervals on the crushing disc.

[0014] Preferably, an auxiliary material tank and an external gas source are provided on the outer side of the tank body, the auxiliary material tank is connected to the mixing chamber through a hose 1, and the hose 1 is connected to a pump body 1 built into the auxiliary material tank.

[0015] The external gas source is connected to the hose 1 through the hose 2, and the hose 2 is connected to the pump body 2 built in the external gas source.

[0016] Preferably, a material blocking disc is provided in the tank body above the shell, and a guide ring groove for slidingly cooperating with the material blocking disc is provided on the upper end surface of the shell.

[0017] Preferably, a limiting disk member cooperating therewith is provided below the shell, and a plurality of discharge ports are provided on the limiting disk member.

[0018] Preferably, the stirring mechanism includes a driving motor, a rotating shaft and a stirring assembly, the driving motor is arranged at the upper end of the tank body, and its output end is connected to the rotating shaft, the rotating shaft extends into the tank body, the crushing disk and the stirring assembly are both arranged on the rotating shaft, and the stirring assembly is located below the crushing disk.

[0019] Preferably, the stirring assembly includes a plurality of stirring members spaced apart on the rotating shaft, the stirring member includes a vertical rod and a plurality of rotating parts, and a plurality of the rotating parts are spaced apart between the vertical rod and the rotating shaft 22 .

[0020] Preferably, the rotating part comprises a rotating plate and a rotating motor, the rotating plate is rotatably connected between the vertical rod and the rotating shaft, the rotating motor is arranged in the rotating shaft, and an output end thereof is connected to the rotating plate.

[0021] Preferably, a cylinder is provided at the upper end of the tank body, and a telescopic end of the cylinder extends into the tank body and is connected to the shell.

[0022] A mixing method, using any one of the rare earth metals described above to prepare a mixing device, comprising the following steps:

[0023] (a) Determining the particle size specifications of the rare earth metal raw materials: The cylinder controls the housing to slide in the tank body and determines the size of the crushing channel to determine the final particle size specifications of the rare earth metal raw materials;

[0024] (b) Feeding and primary mixing: The rare earth metal raw material is introduced into the tank body from the feed port at a certain rate, and the rare earth metal raw material is ground to a required particle size through the grinding channel and then guided to the mixing chamber; the auxiliary material is introduced into the mixing chamber from the auxiliary material tank at a certain rate to ensure that the two are mixed in the mixing chamber in a certain proportion, and at the same time, by connecting to an external air source, the rare earth metal raw material and the auxiliary material are mixed by air blowing to achieve primary mixing, thereby obtaining a mixture A;

[0025] (c) Secondary mixing: Mixture A is directed into the belly of the tank through multiple discharge ports on the limiting disk, and is uniformly stirred by the stirring mechanism to achieve secondary mixing, thereby obtaining mixture B;

[0026] (d) The mixed material B is introduced into the corresponding electrolytic furnace through the discharge port, the connecting main pipe, the connecting auxiliary pipe and a plurality of connecting ports connected to the electrolytic furnace.

[0027] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. The present invention provides a rare earth metal preparation mixing device and a mixing method. The use of the device is simple and efficient. The crushing mechanism can adjust the size of the crushing channel formed in the tank body to achieve the required rare earth metal raw material particle size, thereby improving the quality of subsequent mixed material products. The specifications and sizes of the rare earth metal raw materials can be controlled to meet the needs of modern production processes, thereby improving work efficiency.

[0029] 2. The present invention provides a two-stage mixing process, that is, the rare earth metal raw material and the auxiliary material are mixed by air in a mixing chamber, and the auxiliary material is added into the mixing chamber by an auxiliary material tank and mixed with the rare earth metal raw material that has been crushed to a certain particle size by rolling, and the auxiliary material and the rare earth metal raw material are ventilated into the mixing chamber through an external air source to stir the auxiliary material and the rare earth metal raw material. The two are spirally shaped under the action of wind force to improve the degree of mixing of the two; then, the material is introduced into the abdominal cavity of the tank body through the discharge port on the limiting disk to carry out secondary stirring and mixing, and the two are stirred by a stirring mechanism to more fully and evenly blend the two, thereby improving the quality of the final mixture, facilitating the development and operation of subsequent processes, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0032] Figure 3 It is a schematic diagram of the structure of the crushing disk of the present invention;

[0033] Figure 4 for Figure 1 An enlarged schematic diagram of point B.

[0034] The main component symbols in the figure are explained as follows:

[0035] 1. Tank body; 11. Feed inlet; 12. Discharge outlet; 2. Stirring mechanism; 21. Drive motor; 22. Rotating shaft; 23. Stirring assembly; 231. Stirring member; 3. Crushing mechanism; 31. Shell; 311. Crushing chamber; 312. Mixing chamber; 313. Guide ring groove; 32. Crushing disc; 321. Annular protrusion; 4. Guide rail; 5. Crushing channel; 6. Auxiliary material tank; 7. External air source; 8. Material blocking disc; 9. Limiting disc; 91. Discharge port; 100. Hose 1; 200. Hose 2; 300. Vertical rod; 400. Rotating part; 410. Rotating plate; 420. Rotating motor; 500. Cylinder; 600. Connecting main pipe; 700. Connecting auxiliary pipe; 800. Connecting port. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example

[0038] like Figures 1 to 4 As shown, a rare earth metal preparation mixing equipment comprises a tank body 1, a stirring mechanism 2 and a crushing mechanism 3. The upper and lower ends of the tank body 1 are respectively provided with a feed port 11 and a discharge port 12. The stirring mechanism 2 is arranged at the upper end of the tank body 1 and extends to the inside of the tank body 1 and is rotatably connected thereto. The crushing mechanism 3 comprises a shell 31 and a crushing disk 32. The shell 31 is vertically slidably connected to the tank body 1 through a guide rail 4. A crushing chamber 311 and a mixing chamber 312 are provided in the shell 31, and the crushing chamber 311 is located above the mixing chamber 312. The upper end of the crushing chamber 311 is open, and the lower end of the mixing chamber 312 is open. The crushing disk 32 is arranged on the stirring mechanism 2 and is rotatably connected to the crushing chamber 311. The crushing disk 32 is in a conical shape inclined from the middle to the outside. The upper end surface of the crushing chamber 311 is arranged corresponding to the inclined surface of the crushing disk 32, and a crushing channel 5 is formed between the upper end surface and the inclined surface.

[0039] The equipment is simple to use and highly efficient. The crushing mechanism 3 can achieve the required particle size of the rare earth metal raw material by adjusting the size of the crushing channel 5 formed in the tank body 1, thereby improving the quality of the subsequent mixed material product. The size of the rare earth metal raw material can be controlled to meet the needs of modern production processes, thereby improving work efficiency.

[0040] In this embodiment, please refer to Figure 3 A plurality of annular protrusions 321 are provided at intervals on the crushing disk 32; the annular protrusions 321 play a role in efficiently crushing the rare earth metal raw materials; when adjusting the size of the crushing channel 5, the sliding of the shell 31 in the tank body 1 is adjusted to adjust the distance between the upper end surface of the crushing cavity 311 and the top of the annular protrusion 321, which is the crushing channel 5, and the process of the shell 31 sliding up and down is the process of adjusting the size of the crushing channel 5, which is simple to operate and highly practical.

[0041] Please refer to Figure 1 and Figure 2 An auxiliary material tank 6 and an external gas source 7 are provided on the outer side of the tank body 1. The auxiliary material tank 6 is connected to the mixing chamber 312 through a hose 100. The hose 100 is connected to a pump body 1 (not shown in the figure) built into the auxiliary material tank 6. The external gas source 7 is connected to the hose 100 through a hose 200. The hose 200 is connected to a pump body 2 (not shown in the figure) built into the external gas source 7.

[0042] The present invention provides a two-stage mixing process, i.e., the rare earth metal raw material and the auxiliary material are mixed by first-stage air blowing in the mixing chamber 312, and the auxiliary material is added into the mixing chamber 312 by means of the auxiliary material tank 6 and mixed with the rare earth metal raw material that has been crushed to a certain particle size, and then ventilated into the mixing chamber 312 through the external air source 7 to stir the auxiliary material and the rare earth metal raw material, and the two are spirally shaped under the action of wind force to improve the degree of mixing of the two; then, the two are introduced into the abdominal cavity of the tank body 1 through the discharge port 91 on the limit plate 9 described below for second-stage stirring and mixing, and the two are stirred by the stirring mechanism 2 to more fully and evenly blend the two, thereby improving the quality of the final mixture, facilitating the development and operation of subsequent processes, and improving work efficiency.

[0043] In this embodiment, a material blocking disc 8 is disposed in the tank body 1 above the housing 31, and a guide ring groove 313 is provided on the upper end surface of the housing 31 to slide with the material blocking disc 8; Figure 1 and Figure 2 The rare earth metal raw material is introduced from the feed port 11, and the material blocking disc 8 and the crushing chamber 311 form a feeding interval, and the feeding interval is connected to the crushing chamber 311. The rare earth metal raw material can be guided into the crushing chamber 311 through the feeding interval to be crushed to the required particle size; the material blocking disc 8 plays a role of limiting and guiding.

[0044] A limiting plate 9 cooperating therewith is provided below the shell body 31, and a plurality of discharge ports 91 are provided on the limiting plate 9; in combination with the above, the limiting plate 9 is used to limit the shell body 31 and to provide a bottom cover, and at the same time facilitates the diversion of the mixed material in the mixing cavity 312 to the abdominal cavity of the tank body 1; the limiting plate 9 plays a role of connecting the upper and lower parts.

[0045] In this embodiment, the stirring mechanism 2 includes a driving motor 21, a rotating shaft 22 and a stirring assembly 23. The driving motor 21 is arranged at the upper end of the tank body 1, and its output end is connected to the rotating shaft 22. The rotating shaft 22 extends into the tank body 1. The crushing disk 32 and the stirring assembly 23 are both arranged on the rotating shaft 22, and the stirring assembly 23 is located below the crushing disk 32.

[0046] For details, please refer to Figure 1 and Figure 4 The stirring assembly 23 includes a plurality of stirring members 231 spaced apart on the rotating shaft 22, the stirring member 231 includes a vertical rod 300 and a plurality of rotating parts 400, and a plurality of rotating parts 400 are spaced apart between the vertical rod 300 and the rotating shaft 22; the stirring members 231 in the present application include but are not limited to four groups, and the four groups of stirring members 231 are arranged in a circular array; the rotating parts 400 in the present application include but are not limited to four, and the four rotating parts 400 are arranged in a circular array.

[0047] Specifically, the rotating part 400 includes a rotating plate 410 and a rotating motor 420. The rotating plate 410 is rotatably connected between the vertical rod 300 and the rotating shaft 22. The rotating motor 420 is arranged in the rotating shaft 22, and its output end is connected to the rotating plate 410. During specific stirring, while the driving motor 21 drives the stirring member 231 to rotate, the rotating motor 420 can drive the rotating plate 410 to rotate, and the rare earth metal raw material and the auxiliary material are stirred in multiple directions and angles to form a mixture for secondary mixing, thereby improving the mixing effect of the two.

[0048] In this embodiment, a cylinder 500 is provided at the upper end of the tank body 1, and the telescopic end of the cylinder 500 extends into the tank body 1 and is connected to the shell 31; the cylinder 500 drives the shell 31 to slide in the tank body 1, so as to better adjust the size of the crushing channel 5.

[0049] In this embodiment, a mixing method of a rare earth metal preparation mixing device comprises the following steps:

[0050] (a) Determining the particle size specification of the rare earth metal raw material: The cylinder 500 controls the housing 31 to slide in the tank 1 and determines the size of the crushing channel 5 to determine the final particle size specification of the rare earth metal raw material;

[0051] (b) Feeding and primary mixing: The rare earth metal raw material is introduced into the tank body through the feed port 11 at a certain rate, and the rare earth metal raw material is ground to a desired particle size through the grinding channel 5 and then guided to the mixing chamber 312; the auxiliary material is introduced into the mixing chamber 312 through the auxiliary material tank 6 at a certain rate to ensure that the two are mixed in the mixing chamber 312 in a certain proportion, and at the same time, by connecting to the external air source 7, the rare earth metal raw material and the auxiliary material are mixed by air blowing to achieve primary mixing, thereby obtaining a mixed material A;

[0052] (c) Secondary mixing: the mixed material A is directed to the abdominal cavity of the tank body 1 through the multiple discharge ports 91 on the limiting plate 9, and is uniformly stirred by the stirring mechanism 2 to achieve secondary mixing, thereby obtaining the mixed material B;

[0053] (d) The mixed material B is introduced into the corresponding electrolytic furnaces through the discharge port 12, the connecting main pipe 600, the connecting sub-pipe 700, and the plurality of connecting ports 800 connected to the electrolytic furnaces.

[0054] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A rare earth metal preparation mixing equipment, characterized in that: The invention comprises a tank body (1), a stirring mechanism (2) and a crushing mechanism (3), wherein the tank body (1) is provided with a feed inlet (11) and a discharge outlet (12) at the upper and lower ends thereof respectively. The stirring mechanism (2) is arranged at the upper end of the tank body (1) and extends into the interior of the tank body (1) and is rotatably connected thereto. The crushing mechanism (3) comprises a shell (31) and a crushing disc (32); the shell (31) is vertically slidably connected to the tank body (1) via a guide rail (4); a crushing chamber (311) and a mixing chamber (312) are provided in the shell (31); the crushing chamber (311) is located above the mixing chamber (312); the crushing chamber (311) is open at the upper end, and the mixing chamber (312) is open at the lower end; The crushing disc (32) is arranged on the stirring mechanism (2) and is rotatably connected to the crushing chamber (311); the crushing disc (32) is in the shape of a cone inclined from the center to the outside; the upper end surface of the crushing chamber (311) is arranged corresponding to the inclined surface of the crushing disc (32), and a crushing channel (5) is formed between the upper end surface and the inclined surface.

2. A rare earth metal preparation and mixing equipment as claimed in claim 1, characterized in that: A plurality of annular protrusions (321) are arranged at intervals on the crushing disc (32).

3. A rare earth metal preparation and mixing equipment as claimed in claim 1, characterized in that: An auxiliary material tank (6) and an external gas source (7) are provided on the outer surface of the tank body (1); the auxiliary material tank (6) is connected to the mixing chamber (312) via a hose (100); and the hose (100) is connected to a pump body (1) built into the auxiliary material tank (6). The external gas source (7) is connected to the hose 1 (100) via the hose 2 (200), and the hose 2 (200) is connected to the pump body 2 built into the external gas source (7).

4. A rare earth metal preparation and mixing equipment as claimed in claim 1, characterized in that: A material blocking disc (8) is provided in the tank body (1) above the shell (31), and a guide ring groove (313) is provided on the upper end surface of the shell (31) for slidingly cooperating with the material blocking disc (8).

5. The rare earth metal preparation and mixing equipment according to claim 1, characterized in that: A limiting disk component (9) cooperating with the housing (31) is provided below the housing (31), and a plurality of discharge ports (91) are provided on the limiting disk component (9).

6. A rare earth metal preparation and mixing equipment as claimed in claim 1, characterized in that: The stirring mechanism (2) comprises a driving motor (21), a rotating shaft (22) and a stirring assembly (23); the driving motor (21) is arranged at the upper end of the tank body (1), and its output end is connected to the rotating shaft (22); the rotating shaft (22) extends into the tank body (1); the crushing disc (32) and the stirring assembly (23) are both arranged on the rotating shaft (22), and the stirring assembly (23) is located below the crushing disc (32).

7. A rare earth metal preparation and mixing equipment as claimed in claim 6, characterized in that: The stirring assembly (23) comprises a plurality of stirring members (231) arranged at intervals on the rotating shaft (22); the stirring member (231) comprises a vertical rod (300) and a plurality of rotating parts (400); and a plurality of rotating parts (400) are arranged at intervals between the vertical rod (300) and the rotating shaft (22).

8. A rare earth metal preparation and mixing equipment as claimed in claim 7, characterized in that: The rotating part (400) comprises a rotating plate (410) and a rotating motor (420); the rotating plate (410) is rotatably connected between the vertical rod (300) and the rotating shaft (22); the rotating motor (420) is arranged in the rotating shaft (22), and its output end is connected to the rotating plate (410).

9. The rare earth metal preparation and mixing equipment according to claim 1, characterized in that: A cylinder (500) is provided at the upper end of the tank body (1), and a telescopic end of the cylinder (500) extends into the tank body (1) and is connected to the shell (31).

10. A mixing method, using the rare earth metal mixing equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: (a) Determining the particle size specification of the rare earth metal raw material: controlling the housing (31) to slide in the tank (1) through the cylinder (500) and determining the size of the crushing channel (5) to determine the final particle size specification of the rare earth metal raw material; (b) Feeding and primary mixing: the rare earth metal raw material is introduced into the tank body (1) at a certain rate through the feed port (11), and the rare earth metal raw material is ground to a desired particle size through the grinding channel (5) and then guided to the mixing chamber (312); the auxiliary material is introduced into the mixing chamber (312) from the auxiliary material tank (6) at a certain rate to ensure that the two are mixed in the mixing chamber (312) in a certain proportion, and at the same time, by connecting to an external air source, the rare earth metal raw material and the auxiliary material are mixed by air blowing to achieve primary mixing, thereby obtaining a mixed material A; (c) Secondary mixing: the mixed material A is directed into the abdominal cavity of the tank body (1) through a plurality of discharge ports (91) on the limiting disk (9), and is uniformly stirred by the stirring mechanism (2) to achieve secondary mixing, thereby obtaining a mixed material B; (d) The mixed material B is introduced into the corresponding electrolytic furnace through the discharge port (12), the connecting main pipe (600), the connecting auxiliary pipe (700) and a plurality of connecting ports (800) connected to the electrolytic furnace.

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