Vertical centrifugal machine for producing lithium carbonate

Abstract

The utility model discloses a vertical centrifuge for producing lithium carbonate, and relates to the technical field of centrifugal structures, a motor is fixedly arranged on the top surface of a fixed cylinder, a conical disc extending into a rotating cylinder is connected to an output shaft of the motor, a liquid inlet pipe is fixedly arranged on the top wall of the fixed cylinder, and a liquid outlet pipe is fixedly arranged on the top wall of the fixed cylinder. The tail end opening of the liquid inlet pipe faces the conical surface of the conical disc; a through groove located in the left side of the motor is further formed in the top surface of the fixing barrel, a horizontal oil cylinder is fixedly arranged on the left end face of the vertical plate, a piston rod of the horizontal oil cylinder rightwards penetrates through the vertical plate, an L-shaped plate is fixedly arranged at the extending end, a feeding oil cylinder is fixedly arranged on a horizontal plate of the L-shaped plate, and a piston rod of the feeding oil cylinder downwards penetrates through the through groove and extends into the fixing barrel; and a scraping plate is welded on a piston rod of the feeding oil cylinder. The lithium carbonate powder scraper has the advantages that the scraper is prevented from being bent and deformed, and the production efficiency of lithium carbonate powder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal structures, in particular to a vertical centrifuge for producing lithium carbonate. Background Art

[0002] The mother liquor produced in a certain workshop contains lithium carbonate, that is, lithium carbonate is entrained in the liquid in powder form. In order to produce lithium carbonate, the workshop uses a centrifuge as shown in Figures 1 to 4 to separate the lithium carbonate in the mother liquor.

[0003] The centrifuge includes a workbench 1, a fixed cylinder 2 fixedly arranged on the tabletop of the workbench 1, a hollow tube 3 rotatably installed in the workbench 1, the lower end of the hollow tube 3 is connected to a power motor 15, the upper end of the hollow tube 3 extends into the fixed cylinder 2, a conical cylinder and a rotating cylinder 4 are sequentially fixedly connected to the extending end of the hollow tube 3, a plurality of through holes are formed in the rotating cylinder 4, and a cylindrical cloth bag 5 is fixedly arranged on the inner wall of the rotating cylinder 4;

[0004] Among them, a motor 6 is fixedly arranged on the top surface of the fixed cylinder 2, a conical disk 7 extending into the rotating cylinder 4 is connected to the output shaft of the motor 6, a liquid inlet pipe 8 is fixedly arranged on the top wall of the fixed cylinder 2, and the end port of the liquid inlet pipe 8 faces the conical surface of the conical disk 7;

[0005] Among them, a through groove 9 is further formed on the top surface of the fixed cylinder 2 to the left of the motor 6, a feeding oil cylinder 13 fixedly arranged on the top surface of the fixed cylinder 2 is arranged on the left side of the through groove 9, the piston rod of the feeding oil cylinder 13 penetrates downward through the through groove 9 and extends into the fixed cylinder 2, a scraping plate 14 is welded on the piston rod of the feeding oil cylinder 13, and the left end surface of the scraping plate 14 is in contact with the cloth bag 5.

[0006] The working process of the centrifuge is as follows:

[0007] S1. The worker turns on the power motor 15, the power motor 15 drives the hollow tube 3 to rotate, the hollow tube 3 drives the conical cylinder and the rotating cylinder 4 to rotate synchronously, the rotating cylinder 4 drives the cloth bag 5 to rotate synchronously, and the rotation direction of the hollow tube 3 is as shown by the solid arrow in Figure 5 ; the motor 6 is turned on, and the motor 6 drives the conical disk 7 to rotate, and the conical disk 7 makes a centrifugal motion around its own axis;

[0008] S2. The material pump is turned on, the material pump pumps the mother liquor entrained with lithium carbonate into the right port of the liquid inlet pipe 8, under the pump pressure, the mother liquor sequentially passes through the liquid inlet pipe 8 and the end port of the liquid inlet pipe 8, and finally falls onto the rotating conical disk 7. Under the centrifugal motion of the conical disk 7, the mother liquor entrained with lithium carbonate is thrown onto the rotating cloth bag 5. The mother liquor sequentially passes through the cloth bag 5 and the through holes on the wall of the rotating cylinder 4, and finally is recovered into the fixed cylinder 2, while the lithium carbonate powder is intercepted by the cloth bag 5;

[0009] S3. After the material pump has been operating for some time, the worker turns off the material pump. At this time, the fixed cylinder 2 contains mother liquor, and a layer of lithium carbonate powder layer 17 covers the cloth bag 5, as Figure 5 shown, thus ultimately achieving the separation of lithium carbonate from the mother liquor;

[0010] S4. The scraping off of the lithium carbonate powder layer 17, and its specific operating steps are as follows:

[0011] Control the piston rod of the feed cylinder 13 to extend downward. The piston rod drives the scraper 14 to move downward. The scraper 14 presses against the cloth bag 5 and enters into the lithium carbonate powder layer 17, and moves downward in a straight line. The movement direction of the scraper 14 is as Figure 6 shown by the hollow arrow in the figure. Since the scraper 14 moves downward along the cloth bag 5, and the lithium carbonate powder layer 17 covering the cloth bag 5 rotates, all the lithium carbonate powder layer 17 covering the cloth bag 5 is scraped off. The scraped-off lithium carbonate powder sequentially passes through the conical cylinder and the hollow tube 3, and finally falls from the bottom port of the hollow tube 3, thus ultimately obtaining the required lithium carbonate powder.

[0012] However, although this centrifuge can separate the lithium carbonate powder from the mother liquor, there are still the following technical defects in terms of technology:

[0013] In step S4, the scraper 14 moves downward along the cloth bag 5. The depth at which the scraper 14 enters into the lithium carbonate powder layer 17 is deep, and since the thickness of the lithium carbonate powder layer 17 itself is relatively thick, the resistance of the lithium carbonate powder layer 17 to the scraper 14 is large, which in turn causes the scraper 14 to bend and deform. As a result, the subsequent worker needs to stop the machine and manually flatten the scraper 14, which undoubtedly delays the production time of the lithium carbonate powder and thus reduces the production efficiency of the lithium carbonate powder.

[0014] Therefore, there is an urgent need for a vertical centrifuge that can prevent the scraper from bending and deforming and improve the production efficiency of lithium carbonate powder. Summary of the Utility Model

[0015] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a vertical centrifuge for producing lithium carbonate that can prevent the scraper from bending and deforming and improve the production efficiency of lithium carbonate powder.

[0016] The object of the present utility model is achieved by the following technical solutions: A vertical centrifuge for producing lithium carbonate, which comprises a workbench, a fixed cylinder fixedly arranged on the workbench surface, a hollow tube rotatably installed in the workbench, a power mechanism for driving the rotation is connected to the lower end of the hollow tube, the upper end of the hollow tube extends into the fixed cylinder, a conical cylinder and a rotating cylinder are successively fixedly connected to the extended end of the hollow tube, a plurality of through holes are arranged on the rotating cylinder, a cylindrical cloth bag is fixedly arranged on the inner wall of the rotating cylinder, a motor is fixedly arranged on the top surface of the fixed cylinder, a conical disc extending into the rotating cylinder is connected to the output shaft of the motor, a liquid inlet pipe is fixedly arranged on the top wall of the fixed cylinder, and the end port of the liquid inlet pipe faces the conical surface of the conical disc;

[0017] A through groove located on the left side of the motor is further arranged on the top surface of the fixed cylinder, a vertical plate welded to the top surface of the fixed cylinder is arranged on the left side of the through groove, a horizontal oil cylinder is fixedly arranged on the left end surface of the vertical plate, the piston rod of the horizontal oil cylinder penetrates through the vertical plate to the right, and an L-shaped plate is fixedly arranged on the extended end, a feeding oil cylinder is fixedly arranged on the horizontal plate of the L-shaped plate, the piston rod of the feeding oil cylinder penetrates through the through groove downward and extends into the fixed cylinder, and a scraping plate is welded on the piston rod of the feeding oil cylinder.

[0018] A plurality of support legs supporting on the ground are fixedly arranged on the bottom surface of the workbench.

[0019] The power mechanism comprises a power motor fixedly arranged on the ground, a driven gear welded on the outer cylindrical surface of the hollow tube, and a driving gear installed on the output shaft of the power motor, and the driving gear meshes with the driven gear.

[0020] A dynamic seal is arranged between the hollow tube and the bottom wall of the fixed cylinder.

[0021] A bearing seat is fixedly arranged on the top surface of the workbench, and the hollow tube is rotatably installed in the bearing seat.

[0022] The vertical centrifuge further comprises a controller, and the controller is electrically connected to the power motor, the motor, the horizontal oil cylinder and the feeding oil cylinder through signal lines.

[0023] The present utility model has the following advantages: preventing the scraping plate from bending and deforming and improving the production efficiency of lithium carbonate powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a certain centrifuge;

[0025] Figure 2 It is a connection schematic diagram of the hollow tube, the conical cylinder and the rotating cylinder;

[0026] Figure 3 For Figure 2 The A-A cross-sectional schematic diagram of;

[0027] Figure 4Schematic diagram of the connection between the motor and the conical disc;

[0028] Figure 5 Schematic diagram of a layer of lithium carbonate powder layer covered on the cloth bag;

[0029] Figure 6 Schematic diagram of the scraper moving downward along the cloth bag;

[0030] Figure 7 Schematic structural diagram of the present invention;

[0031] Figure 8 Schematic diagram of the connection between the vertical plate, the horizontal oil cylinder, the feeding oil cylinder and the scraper;

[0032] Figure 9 Axonometric drawing of the scraper;

[0033] Figure 10 For Figure 9 front view;

[0034] Figure 11 Schematic diagram of a layer of lithium carbonate powder layer covered on the cloth bag;

[0035] Figure 12 Schematic diagram of the scraper extending into the rotating cylinder;

[0036] Figure 13 Schematic diagram of the scraper biting into the lithium carbonate powder layer;

[0037] Figure 14 Schematic diagram of the scraper resetting;

[0038] Figure 15 Schematic diagram of the left end face of the scraper just contacting the inner wall of the cloth bag;

[0039] In the figure:

[0040] 1 - Workbench, 2 - Fixed cylinder, 3 - Hollow tube, 4 - Rotating cylinder, 5 - Cloth bag, 6 - Motor, 7 - Conical disc, 8 - Liquid inlet pipe;

[0041] 9 - Through groove, 10 - Vertical plate, 11 - Horizontal oil cylinder, 12 - L-shaped plate, 13 - Feeding oil cylinder, 14 - Scraper, 15 - Power motor, 16 - Driven gear, 17 - Lithium carbonate powder layer, 18 - Residual lithium carbonate powder layer. Detailed implementation manners

[0042] The following further describes the present invention with reference to the accompanying drawings. The protection scope of the present invention is not limited to the following:

[0043] As Figures 7 to 10As shown in the figure, a vertical centrifuge for the production of lithium carbonate includes a workbench 1, a fixed cylinder 2 fixedly arranged on the tabletop of the workbench 1. A hollow tube 3 is rotatably installed in the workbench 1. The lower end of the hollow tube 3 is connected with a power mechanism for driving its rotation. The upper end of the hollow tube 3 extends into the fixed cylinder 2. A conical cylinder and a rotating cylinder 4 are sequentially fixedly connected to the extended end of the hollow tube 3. A dynamic seal is arranged between the hollow tube 3 and the bottom wall of the fixed cylinder 2. A plurality of through holes are formed in the rotating cylinder 4, and a cylindrical cloth bag 5 is fixedly arranged on the inner wall of the rotating cylinder 4. A motor 6 is fixedly arranged on the top surface of the fixed cylinder 2. A conical disk 7 extending into the rotating cylinder 4 is connected to the output shaft of the motor 6. A liquid inlet pipe 8 is fixedly arranged on the top wall of the fixed cylinder 2, and the end port of the liquid inlet pipe 8 faces the conical surface of the conical disk 7. A plurality of support legs supporting on the ground are fixedly arranged on the bottom surface of the workbench 1.

[0044] A through groove 9 located on the left side of the motor 6 is further formed on the top surface of the fixed cylinder 2. A vertical plate 10 welded to the top surface of the fixed cylinder 2 is arranged on the left side of the through groove 9. A horizontal oil cylinder 11 is fixedly arranged on the left end surface of the vertical plate 10. The piston rod of the horizontal oil cylinder 11 penetrates through the vertical plate 10 to the right, and an L-shaped plate 12 is fixedly arranged on the extended end. A feeding oil cylinder 13 is fixedly arranged on the horizontal plate of the L-shaped plate 12. The piston rod of the feeding oil cylinder 13 penetrates through the through groove 9 downward and extends into the fixed cylinder 2. A scraper 14 is welded on the piston rod of the feeding oil cylinder 13.

[0045] The power mechanism includes a power motor 15 fixedly arranged on the ground, a driven gear 16 welded on the outer cylindrical surface of the hollow tube 3, and a driving gear installed on the output shaft of the power motor 15. The driving gear meshes with the driven gear 16. A bearing seat is fixedly arranged on the top surface of the workbench 1. The hollow tube 3 is rotatably installed in the bearing seat.

[0046] This vertical centrifuge further includes a controller, which is electrically connected to the power motor 15, the motor 6, the horizontal oil cylinder 11, and the feeding oil cylinder 13 through signal lines. Workers can control the start or stop of the power motor 15 and the motor 6 through the controller, and at the same time can also control the extension or retraction of the piston rods of the horizontal oil cylinder 11 and the feeding oil cylinder 13, which facilitates the operation of workers and has the characteristics of high automation.

[0047] The working process of this vertical centrifuge is as follows:

[0048] S1. Workers turn on the power motor 15. The power motor 15 drives the hollow tube 3 to rotate. The hollow tube 3 drives the conical cylinder and the rotating cylinder 4 to rotate synchronously. The rotating cylinder 4 drives the cloth bag 5 to rotate synchronously. The rotation direction of the rotating cylinder 4 is as shown by the solid arrow in the figure; turn on the motor 6. The motor 6 drives the conical disk 7 to rotate. The conical disk 7 makes a centrifugal motion around its own axis; Figure 11 as shown by the solid arrow in the figure; turn on the motor 6. The motor 6 drives the conical disk 7 to rotate. The conical disk 7 makes a centrifugal motion around its own axis;

[0049] S2. Turn on the material pump. The material pump pumps the mother liquor containing lithium carbonate into the right port of the liquid inlet pipe 8. Under the pump pressure, the mother liquor sequentially passes through the liquid inlet pipe 8 and the end port of the liquid inlet pipe 8, and finally falls onto the rotating conical disk 7. Under the centrifugal force of the conical disk 7, the mother liquor containing lithium carbonate is thrown onto the rotating cloth bag 5. The mother liquor sequentially passes through the cloth bag 5 and the through holes on the wall of the rotating cylinder 4, and finally is recovered into the fixed cylinder 2, while the lithium carbonate powder is intercepted by the cloth bag 5;

[0050] S3. After the material pump works for a period of time, the worker turns off the material pump. At this time, the fixed cylinder 2 is filled with the mother liquor, and a layer of lithium carbonate powder layer 17 is covered on the cloth bag 5, as Figure 11 shown, thus finally realizing the separation of lithium carbonate from the mother liquor;

[0051] S4. Scraping off the lithium carbonate powder layer 17, the specific operation steps are as follows:

[0052] S41. Control the piston rod of the feed oil cylinder 13 to extend downward. The piston rod drives the scraper 14 to move downward so that the scraper 14 extends into the rotating cylinder 4, as Figure 12 shown. When the piston rod of the feed oil cylinder 13 extends to the set stroke, the controller controls the feed oil cylinder 13 to close. At this time, the scraper 14 is opposite to the lithium carbonate powder layer 17;

[0053] S42. Control the piston rod of the horizontal oil cylinder 11 to retract to the left. The piston rod drives the L plate 12 to move to the left. The L plate 12 drives the feed oil cylinder 13 to move to the left. The feed oil cylinder 13 drives the scraper 14 to move to the left. When the feed oil cylinder 13 retracts to the stroke, the controller controls the feed oil cylinder 13 to close. At this time, the scraper 14 just bites into the lithium carbonate powder layer 17, as Figure 13 shown;

[0054] S43. Control the piston rod of the feed oil cylinder 13 to continue to extend downward. The piston rod drives the scraper 14 to continue to move downward. The movement direction of the scraper 14 is as Figure 13 shown by the hollow arrow in. Since the scraper 14 moves downward in a straight line and the lithium carbonate powder layer 17 covering the cloth bag 5 rotates, the scraper 14 scrapes off a part of the lithium carbonate powder layer 17 covering the cloth bag 5. The scraped-off lithium carbonate powder sequentially passes through the conical cylinder and the hollow pipe 3, and finally falls from the bottom port of the hollow pipe 3;

[0055] S44. When the scraper 14 moves to the lower limit position, control the piston rod of the feed oil cylinder 13 to retract upward. The piston rod drives the scraper 14 to reset, as Figure 14 shown. At this time, there is still a part of the residual lithium carbonate powder layer 18 that has not been scraped off on the cloth bag 5;

[0056] S45. Control the piston rod of the feed cylinder 13 to extend downward so that the scraper 14 enters the rotary drum 4 again. Then control the piston rod of the horizontal cylinder 11 to retract to the left so that the scraper 14 bites into the residual lithium carbonate powder layer 18. When the piston rod of the horizontal cylinder 11 is fully retracted, the left end face of the scraper 14 just contacts the inner wall of the cloth bag 5, as Figure 15 shown;

[0057] Then control the piston rod of the feed cylinder 13 to extend downward. The piston rod drives the scraper 14 to move downward. Since the scraper 14 moves in a straight line downward and the residual lithium carbonate powder layer 18 covering the cloth bag 5 moves in a rotary motion, the scraper 14 scrapes off the residual lithium carbonate powder layer 18 covering the cloth bag 5. The scraped-off lithium carbonate powder sequentially passes through the conical cylinder and the hollow tube 3 and finally falls from the bottom port of the hollow tube 3, so as to finally obtain the required lithium carbonate powder.

[0058] Among them, it can be seen from step S4 that through the linkage cooperation of the horizontal cylinder 11 and the feed cylinder 13, this vertical centrifuge can scrape off all the lithium carbonate powder covering the cloth bag 5 in two times, effectively avoiding the bending deformation of the scraper 14 due to the resistance of the lithium carbonate powder layer 17, so there is no need to stop the machine subsequently to flatten the scraper 14. Therefore, compared with the centrifuge as Figures 1 to 4 shown, this vertical centrifuge greatly shortens the production time of lithium carbonate powder and thus greatly improves the production efficiency of lithium carbonate powder.

[0059] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical centrifuge for producing lithium carbonate, comprising a workbench (1), a fixed cylinder (2) fixedly mounted on the workbench (1), a hollow tube (3) rotatably mounted in the workbench (1), a power mechanism for driving the hollow tube (3) to rotate is connected to the lower end of the hollow tube (3), an upper end of the hollow tube (3) extends into the fixed cylinder (2), a conical cylinder and a rotating cylinder (4) are sequentially fixedly connected to the extended end of the hollow tube (3), a plurality of through holes are opened on the rotating cylinder (4), a cylindrical cloth bag (5) is fixedly mounted on the inner wall of the rotating cylinder (4), characterized in that: A motor (6) is fixedly provided on the top surface of the fixed cylinder (2); a conical disk (7) extending into the rotating cylinder (4) is connected to the output shaft of the motor (6); a liquid inlet pipe (8) is fixedly provided on the top wall of the fixed cylinder (2); the end opening of the liquid inlet pipe (8) faces the conical surface of the conical disk (7); The top surface of the fixed cylinder (2) is also provided with a through slot (9) located on the left side of the motor (6); a vertical plate (10) welded to the top surface of the fixed cylinder (2) is provided on the left side of the through slot (9); a horizontal cylinder (11) is fixedly provided on the left end surface of the vertical plate (10); a piston rod of the horizontal cylinder (11) penetrates the vertical plate (10) to the right, and an L plate (12) is fixedly provided on the extended end; a feed cylinder (13) is fixedly provided on the horizontal plate of the L plate (12); a piston rod of the feed cylinder (13) penetrates the through slot (9) downward and extends into the fixed cylinder (2); a scraper (14) is welded to the piston rod of the feed cylinder (13).

2. A vertical centrifuge for producing lithium carbonate according to claim 1, characterized in that: A plurality of supporting legs supported on the ground are fixedly arranged on the bottom surface of the workbench (1).

3. A vertical centrifuge for producing lithium carbonate according to claim 1, characterized in that: The power mechanism comprises a power motor (15) fixed on the ground, a driven gear (16) welded to the outer cylindrical surface of the hollow tube (3), and a driving gear mounted on the output shaft of the power motor (15), wherein the driving gear meshes with the driven gear (16).

4. A vertical centrifuge for producing lithium carbonate according to claim 1, characterized in that: A dynamic seal is provided between the hollow tube (3) and the bottom wall of the fixed cylinder (2).

5. A vertical centrifuge for producing lithium carbonate according to claim 1, characterized in that: A bearing seat is fixedly provided on the top surface of the workbench (1), and the hollow tube (3) is rotatably mounted in the bearing seat.

6. A vertical centrifuge for producing lithium carbonate according to claim 1, characterized in that: The vertical centrifuge also includes a controller, which is electrically connected to the power motor (15), the motor (6), the horizontal cylinder (11) and the feed cylinder (13) via signal lines.

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