Vertical circulating sand mill applied to rare earth oxide

Abstract

The utility model relates to the technical field of sand mills, in particular to a vertical circulating sand mill applied to rare earth oxides, which comprises a sand mill, a stirrer and a high-pressure pump, a stirring mechanism is used for stirring and mixing rare earth oxide slurry, and the sand mill is used for refining the rare earth oxide slurry. The high-pressure pump is used for pumping the rare earth oxide slurry in the stirrer into the sand mill; the sand mill comprises a shell, a sand milling driving part, a sand milling shaft, a separation mechanism and a plurality of sand milling discs, the sand milling shaft is located in the shell, the sand milling discs are installed on the sand milling shaft at intervals in the axial direction of the sand milling shaft, and the separation mechanism is installed in the shell and used for blocking communication between an inner cavity of the shell and a discharging port of the sand mill in the sand milling process. Through the design of the separating mechanism, when the sand mill works, the inner cavity of the shell can be separated from the discharging opening of the shell, and the situation that the quality of slurry is reduced and the discharging opening is blocked due to the fact that the slurry is accumulated at the discharging opening is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sand mills, in particular to a vertical circulating sand mill used for rare earth oxides. Background Art

[0002] Rare earth oxide is added as raw material into a mixer and water is added into the mixer to mix evenly to form a slurry, and the mixed rare earth oxide slurry is placed in a sand mill to obtain a refined rare earth oxide slurry. After the raw materials of the existing sand mill enter the sand mill, part of the raw materials will accumulate at its discharge port and cannot be ground and refined, resulting in low quality of the slurry in the initial stage of collection, and even blocking the discharge pipe, affecting the outflow of the slurry. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the problem in the prior art that after the raw materials of the sand mill enter the sand mill, a part of the raw materials will accumulate at the discharge port thereof and cannot be ground and refined, resulting in low quality of the slurry in the initial collection stage and even clogging the discharge pipe, affecting the outflow of the slurry, a vertical circulating sand mill for rare earth oxides is provided.

[0004] The utility model solves the technical problem by adopting a technical solution: a vertical circulating sand mill for rare earth oxides, comprising a sand mill, a stirrer and a high-pressure pump, wherein the stirring mechanism is used to stir and mix the rare earth oxide slurry, the sand mill is used to refine the rare earth oxide slurry, and the high-pressure pump is used to pump the rare earth oxide slurry in the stirrer into the sand mill;

[0005] The sanding mill comprises an outer shell, a sanding driving member, a sanding shaft, a separation mechanism and several sanding discs. The sanding shaft is located in the outer shell, one end of the sanding shaft extends to the outside of the outer shell and is transmission-connected to the output end of the sanding driving member, the sanding driving member is fixedly connected to the outer shell, the sanding driving member is used to provide power for the rotation of the sanding shaft, the sanding discs are installed on the sanding shaft at intervals along the axial direction of the sanding shaft, and the separation mechanism is installed in the outer shell. The separation mechanism is used to block the connection between the inner cavity of the outer shell and the discharge port of the sanding mill during the sanding process. Through the design of the separation mechanism, the inner cavity of the outer shell and its discharge port can be separated when the sanding mill is working, so as to avoid the accumulation of slurry at the discharge port, which leads to the decrease of slurry quality and the blockage of the discharge port.

[0006] In order to solve the problem of how the separation mechanism separates the inner cavity of the shell and its discharge port, the separation mechanism further includes a separation plate and a hydraulic cylinder. The separation plate is slidably connected to the inner wall of the shell, the hydraulic cylinder is fixedly connected to the shell, the separation plate and the hydraulic cylinder are driven by a piston rod, and the hydraulic cylinder is used to provide power for the movement of the separation plate.

[0007] In order to solve the problem of insufficient stability and easy shaking of the separation mechanism and the sanding shaft, the separation mechanism further includes a connecting column, and the bottom surface of the sanding shaft is provided with a connecting cavity for the movement of the connecting column. The connecting column is located in the connecting cavity, and the connecting column and the sanding shaft are rotatably connected.

[0008] In order to solve the problem that the design of a single sanding disc results in insufficient refining and poor refining effect, the sanding machine further includes a plurality of sanding component groups, the sanding component groups include a plurality of sanding columns distributed at intervals along the circumferential direction, a part of the sanding component groups are installed on the bottom surface of the sanding disc located at the bottom, and another part of the sanding component groups are installed on the top surface of the separation disc.

[0009] The invention further comprises a sanding piece group installed on the bottom surface of the sanding disc and a sanding piece group installed on the top surface of the separation disc, which are arranged alternately.

[0010] It further comprises an input end of a high-pressure pump connected to a discharge port at the bottom of a mixer, an output end of the high-pressure pump connected to a feed port at the top of a sand mill, and the discharge port at the bottom of the sand mill connected to a feed port at the top of the mixer through a pipeline.

[0011] The invention further comprises a sand grinder located above the mixer.

[0012] The beneficial effect of the utility model is that the utility model provides a vertical circulation sand mill for rare earth oxides, which, through the design of the separation mechanism, enables the sand mill to separate the inner cavity of the shell and its discharge port when working, thereby avoiding the accumulation of slurry at the discharge port, which leads to a decrease in slurry quality and blockage of the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the sand mill of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the utility model sand mill in working state.

[0017] In the figure: 1. sand mill, 11. housing, 12. sand mill driving member, 13. sand mill shaft, 131. connecting chamber, 14. separation mechanism, 141. separation disc, 142. hydraulic cylinder, 143. connecting column, 15. sand mill disc, 16. sand mill column, 2. mixer, 3. high pressure pump. DETAILED DESCRIPTION

[0018] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0019] like Figure 1 It is a structural schematic diagram of the utility model, a vertical circulating sand mill for rare earth oxides, comprising a sand mill 1, a stirrer 2 and a high-pressure pump 3, wherein the stirrer 2 is used for stirring and mixing rare earth oxide slurry, the sand mill 1 is used for refining the rare earth oxide slurry, and the high-pressure pump 3 is used for pumping the rare earth oxide slurry in the stirrer 2 into the sand mill 1;

[0020] The input end of the high-pressure pump 3 is connected to the discharge port at the bottom of the mixer 2, and the output end of the high-pressure pump 3 is connected to the feed port at the top of the sand mill 1. The feed port of the sand mill 1 is located at the top of the shell 11, and the feed port of the sand mill 1 is located above the uppermost sanding disc 15. The discharge port of the sand mill 1 is located at the bottom of the shell 11, and the discharge port of the sand mill 1 is located below the lowermost sanding disc 15. The discharge port at the bottom of the sand mill 1 is connected to the feed port at the top of the mixer 2 through a pipeline, and a valve is installed on the pipeline.

[0021] like Figure 2 , Figure 3 As shown, the sand mill 1 is located above the mixer 2. Under the influence of gravity and with the valve open, the refined slurry can flow into the mixer 2 again for mixing, thereby achieving a circulation process.

[0022] like Figure 2 , Figure 3 As shown, the sanding mill 1 includes a shell 11, a sanding drive 12, a sanding shaft 13, a separation mechanism 14 and a plurality of sanding discs 15. The sanding shaft 13 is located in the shell 11, one end of the sanding shaft 13 extends to the outside of the shell 11 and is drivingly connected to the output end of the sanding drive 12, the sanding drive 12 is fixedly connected to the shell 11, the sanding drive 12 is a motor, the sanding drive 12 is used to provide power for the rotation of the sanding shaft 13, the sanding discs 15 are installed on the sanding shaft 13 along the axial direction of the sanding shaft 13, and the separation mechanism 14 is installed in the shell 11. The separation mechanism 14 is used to block the communication between the inner cavity of the shell 11 and the discharge port of the sanding mill 1 during the sanding process. Through the design of the separation mechanism 14, the sanding mill 1 can separate the inner cavity of the shell 11 and its discharge port when it is working, so as to avoid the accumulation of slurry at the discharge port, which leads to the decrease of slurry quality and the blockage of the discharge port.

[0023] like Figure 2 , Figure 3As shown, the separation mechanism 14 includes a separation disc 141 and a hydraulic cylinder 142. The separation disc 141 is slidably connected to the inner wall of the outer shell 11, the hydraulic cylinder 142 is fixedly connected to the outer shell 11, and the separation disc 141 and the hydraulic cylinder 142 are piston rod transmission connected. The hydraulic cylinder 142 is used to provide power for the movement of the separation disc 141. In the initial state, the separation disc 141 is located below the discharge port of the outer shell 11. When working, the separation disc 141 moves to above the discharge port of the outer shell 11.

[0024] like Figure 2 , Figure 3 As shown, the separation mechanism 14 includes a connecting column 143, and a connecting cavity 131 for the connection column 143 to move is opened on the bottom surface of the sanding shaft 13. The connecting column 143 is located in the connecting cavity 131, and the connecting column 143 and the sanding shaft 13 are rotatably connected to increase the stability of the separation mechanism 14 and the sanding shaft 13 and reduce the shaking of the equipment.

[0025] like Figure 2 , Figure 3 As shown, the sand mill 1 also includes a plurality of sanding component groups, and the sanding component groups include a plurality of sanding columns 16 distributed at intervals along the circumferential direction, wherein a part of the sanding component groups are installed on the bottom surface of the sanding disc 15 located at the bottom, and another part of the sanding component groups are installed on the top surface of the separation disc 141, so as to increase the degree of refinement of the slurry and thus improve the slurry quality.

[0026] The sanding piece groups installed on the bottom surface of the sanding disc 15 and the sanding piece groups installed on the top surface of the separation disc 141 are arranged alternately, and different sanding piece groups are located on circumferences of different diameters.

[0027] Rare earth oxide and water are added into the mixer 2 for stirring and mixing to obtain rare earth oxide slurry, and the rare earth oxide slurry is pumped into the sand mill 1 by the high-pressure pump 3. During this process, the hydraulic cylinder 12 is started to move the separation disc 141 to above the discharge port of the outer shell 11. After the rare earth oxide slurry enters the outer shell 11, it is refined by the sand mill 15, and then the slurry falls between the sand mill 15 and the separation disc 141. It is refined again by the sand mill column 16 to avoid refining supplementary points. After a certain period of grinding, the hydraulic cylinder 12 is started to move the separation disc 141 downward to below the discharge port of the outer shell 11, so that the refined rare earth oxide slurry can flow out from the discharge port.

[0028] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vertical circulating sand mill for rare earth oxides, characterized in that: The invention comprises a sand mill (1), a stirrer (2) and a high-pressure pump (3), wherein the stirrer (2) is used to stir and mix rare earth oxide slurry, the sand mill (1) is used to refine the rare earth oxide slurry, and the high-pressure pump (3) is used to pump the rare earth oxide slurry in the stirrer (2) into the sand mill (1); The sanding machine (1) comprises a housing (11), a sanding drive (12), a sanding shaft (13), a separation mechanism (14) and a plurality of sanding discs (15); the sanding shaft (13) is located in the housing (11); one end of the sanding shaft (13) extends to the outside of the housing (11) and is drivingly connected to the output end of the sanding drive (12); the sanding drive (12) and the housing (11) are fixedly connected; the sanding drive (12) is used to provide power for the rotation of the sanding shaft (13); the sanding discs (15) are installed on the sanding shaft (13) at intervals along the axial direction of the sanding shaft (13); the separation mechanism (14) is installed in the housing (11); the separation mechanism (14) is used to block the communication between the inner cavity of the housing (11) and the discharge port of the sanding machine (1) during the sanding process.

2. A vertical circulation sand mill for rare earth oxides as claimed in claim 1, characterized in that: The separation mechanism (14) comprises a separation disc (141) and a hydraulic cylinder (142); the separation disc (141) is slidably connected to the inner wall of the outer shell (11); the hydraulic cylinder (142) is fixedly connected to the outer shell (11); the separation disc (141) and the piston rod of the hydraulic cylinder (142) are transmission-connected; and the hydraulic cylinder (142) is used to provide power for the movement of the separation disc (141).

3. A vertical circulation sand mill for rare earth oxides as claimed in claim 2, characterized in that: The separation mechanism (14) comprises a connecting column (143); a connecting cavity (131) for the connecting column (143) to move is provided on the bottom surface of the sanding shaft (13); the connecting column (143) is located in the connecting cavity (131), and the connecting column (143) and the sanding shaft (13) are rotatably connected.

4. A vertical circulating sand mill for rare earth oxides as claimed in claim 2, characterized in that: The sanding machine (1) further comprises a plurality of sanding component groups, wherein the sanding component groups comprise a plurality of sanding columns (16) spaced apart along the circumferential direction, wherein a portion of the sanding component groups are mounted on the bottom surface of the sanding disc (15) located at the bottom, and another portion of the sanding component groups are mounted on the top surface of the separation disc (141).

5. A vertical circulation sand mill for rare earth oxides as claimed in claim 4, characterized in that: The sanding component group installed on the bottom surface of the sanding disc (15) and the sanding component group installed on the top surface of the separation disc (141) are arranged alternately.

6. A vertical circulation sand mill for rare earth oxides as claimed in claim 1, characterized in that: The input end of the high-pressure pump (3) is connected to the discharge port at the bottom of the mixer (2), the output end of the high-pressure pump (3) is connected to the feed port at the top of the sand mill (1), and the discharge port at the bottom of the sand mill (1) is connected to the feed port at the top of the mixer (2) through a pipeline.

7. A vertical circulation sand mill for rare earth oxides as claimed in claim 6, characterized in that: The sand mill (1) is located above the mixer (2).

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