Lithium carbonate sedimentation extraction device capable of filtering for multiple times

Abstract

The utility model relates to the field of lithium carbonate filtering, settling and extracting, in particular to a lithium carbonate settling and extracting device capable of filtering for multiple times. The utility model provides a lithium carbonate sedimentation extraction device capable of filtering for multiple times. The lithium carbonate sedimentation extraction device comprises a support frame, a drying box, a heat conduction cylinder, a second screen, a first screen and the like, a drying box is fixedly connected to the inner wall of the supporting frame, a heat conduction barrel is arranged on the inner wall of the drying box, a plurality of inclined second screens are fixedly connected to the inner wall of the heat conduction barrel, and a first screen is fixedly connected to the top of the drying box. By arranging the first screen, the second screen and the sweeping disc, the sweeping disc can primarily filter a lithium sulfate solution introduced into the filter box and filter large-particle impurities, the first screen can secondarily filter impurities in the lithium sulfate solution, and the second screen can filter dried lithium carbonate solid powder. The purity of the lithium carbonate solid is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium carbonate filtration and sedimentation extraction, and particularly relates to a lithium carbonate sedimentation extraction device with multiple filtration steps. BACKGROUND

[0002] Lithium carbonate, with the chemical formula Li2CO3, is an inorganic compound, which is a white crystalline powder or colorless monoclinic crystal at room temperature, slightly soluble in water and dilute acid, and insoluble in ethanol and acetone. It has a wide range of applications in chemistry, medicine and industry.

[0003] Lithium carbonate is an important compound of lithium resources, which is widely used in battery, glass, ceramic and other industries. The process of extracting lithium carbonate from ore or salt lake brine usually includes multiple steps such as precipitation, filtration and evaporation. In order to improve the purity and yield of lithium carbonate, multiple filtration and sedimentation are key steps. The existing lithium carbonate filtration and sedimentation extraction device on the market usually only performs a single filtration process. If multiple filtration and sedimentation extraction are not performed, many fine particle impurities, such as fine mineral particles remaining in the ore and clay particles wrapped in the salt lake brine, are likely to remain in the lithium carbonate product. Even after single filtration, these fine particle impurities are still difficult to be completely removed, which seriously affects the purity of lithium carbonate and greatly reduces its adaptability and practicality in subsequent application scenarios.

[0004] Therefore, we need to design a lithium carbonate sedimentation extraction device with multiple filtration steps. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings that the existing lithium carbonate filtration and sedimentation extraction device usually only performs a single filtration process, and the purity and quality of lithium carbonate may be significantly affected, the technical problem of the utility model is to provide a lithium carbonate sedimentation extraction device with multiple filtration steps.

[0006] The technical scheme of the utility model is: a lithium carbonate sedimentation extraction device with multiple filtration steps, which comprises a support frame, a drying box, a heat conducting cylinder, a second screen, a first screen, a filter box, a rotating shaft, a sweeping disc, a discharge hopper and a controller. The drying box is fixedly connected to the inner wall of the support frame, the heat conducting cylinder is arranged on the inner wall of the drying box, the second screen is fixedly connected to the inner wall of the heat conducting cylinder, the first screen is fixedly connected to the top of the drying box, the filter box is fixedly connected to the top of the first screen, the rotating shaft is rotatably connected to the inner wall of the top of the filter box, the sweeping disc is fixedly connected to the inner wall of the filter box, the rotating shaft is rotatably connected to the sweeping disc, the sweeping disc is provided with a plurality of openings, the discharge hopper is fixedly connected to the bottom of the drying box, and the controller is fixedly connected to the outer wall of the support frame.

[0007] Further, the stirring bucket, the first feeding pipe, the direct current motor and the stirring rod are further included, the stirring bucket is fixedly connected to the rear side of the top of the filter box, the first feeding pipe is fixedly connected to the top of the stirring bucket, the top of the stirring bucket is connected and communicated with the first feeding pipe, the liquid outlet pipe is connected and communicated with the rear side of the stirring bucket, the direct current motor is fixedly connected to the top of the stirring bucket, the output shaft of the direct current motor penetrates through the top of the stirring bucket and is fixedly connected with the stirring rod, and the direct current motor is electrically connected with the controller.

[0008] Further, the electric heating wire is further included, and the electric heating wire is arranged between the inner wall of the heat conduction cylinder and the outer wall of the drying box, and the electric heating wire is electrically connected with the controller.

[0009] Further, the electric push rod and the baffle are further included, the baffle is slidably connected to the inner lower part of the stirring bucket, the electric push rod is arranged at the rear side of the bottom of the stirring bucket, the telescopic rod of the electric push rod is connected to the top of the baffle, and the electric push rod is electrically connected with the controller.

[0010] Further, the sweeping plate is further included, and the sweeping plate is fixedly connected to the outer wall of the rotating shaft, and each sweeping plate is located at the upper part of each sweeping disc.

[0011] Further, the cylinder, the servo motor, the spiral conveying paddle and the fixing frame are further included, the cylinder is fixedly connected to the bottom of the discharge hopper, the fixing frame is fixedly connected to the bottom of the cylinder, the servo motor is arranged at the left side of the cylinder, the output shaft of the servo motor is rotatably connected with the spiral conveying paddle, the spiral conveying paddle is located in the cylinder, and the servo motor is electrically connected with the controller.

[0012] The beneficial effects of the present application are as follows: 1. The first screen, the second screen and the sweeping disc are arranged, the sweeping disc can perform primary filtration on the lithium carbonate solution entering the filter box, filter out large particles, the first screen can perform secondary filtration on the lithium carbonate solution, and the second screen can filter the lithium carbonate solid powder after drying, thereby improving the purity of the lithium carbonate solid.

[0013] 2. The cylinder, the servo motor and the spiral conveying paddle are arranged, the lithium carbonate solid powder after drying can be transported to the next process by starting the spiral conveying paddle, and the portability of the raw material transportation is greatly improved.

[0014] 3. The sweeping plate is arranged, and the lithium carbonate solution entering the filter box and completing the reaction is stirred. DRAWINGS

[0015] Figure 1 It is a structural schematic view of the present application.

[0016] Figure 2 It is a partial sectional view of the stirring bucket of the present application.

[0017] Figure 3 This is a plan view of the drying oven of this utility model.

[0018] Figure 4 This is a partial cross-sectional view of the filter box of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the heating wire, the second screen, and the discharge hopper of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the sweeping plate, sweeping disc, and first screen of this utility model.

[0021] Figure 7 This is a structural schematic diagram of the cylinder, the spiral conveyor, and the fixing frame of this utility model.

[0022] The markings in the attached diagram are as follows: 1: Support frame, 2: Drying oven, 3: Heat conduction cylinder, 4: Heating wire, 5: Second screen, 6: First screen, 7: Filter box, 8: Rotating shaft, 9: Sweeping plate, 10: Sweeping disc, 11: Liquid outlet pipe, 12: Stirring hopper, 13: First feed pipe, 14: Electric push rod, 15: Baffle, 16: DC motor, 17: Stirring rod, 18: Discharge hopper, 19: Cylinder body, 20: Servo motor, 21: Spiral conveyor, 22: Fixing frame, 23: Controller. Detailed Implementation

[0023] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0024] Example: A lithium carbonate sedimentation extraction device with multiple filtrations, such as... Figures 1-7 As shown, the device includes a support frame 1, a drying chamber 2, a heat-conducting cylinder 3, a second screen 5, a first screen 6, a filter box 7, a rotating shaft 8, a sweeping disc 10, a discharge hopper 18, and a controller 23. The drying chamber 2 is fixedly connected to the inner wall of the support frame 1. The heat-conducting cylinder 3 is provided on the inner wall of the drying chamber 2. Several inclined second screens 5 are welded to the inner wall of the heat-conducting cylinder 3. The first screen 6 is fixedly connected to the top of the drying chamber 2. The filter box 7 is fixedly connected to the top inner wall of the filter box 7. Several sweeping discs 10 are fixedly connected to the inner wall of the filter box 7. The outer wall of the rotating shaft 8 is rotatably connected to the sweeping discs 10. Each sweeping disc 10 has several openings. The discharge hopper 18 is fixedly connected to the bottom of the drying chamber 2. The controller 23 is fixedly connected to the outer wall of the support frame 1. The rotating shaft 8 is electrically connected to the controller 23.

[0025] likeFigure 1 And Figure 2 As shown in The stirring bucket 12, the first feeding pipe 13, the DC motor 16 and the stirring rod 17 are further included. The stirring bucket 12 is fixedly connected to the top rear side of the filter box 7. The first feeding pipe 13 is fixedly connected to the top of the stirring bucket 12. The top of the stirring bucket 12 is connected and communicated with the first feeding pipe 13. The rear side of the stirring bucket 12 is connected and communicated with the liquid outlet pipe 11. The DC motor 16 is fixedly connected to the top of the stirring bucket 12 through bolts. The output shaft of the DC motor 16 penetrates through the top of the stirring bucket 12 and is fixedly connected with the stirring rod 17. The large-particle impurities in the lithium carbonate solution are prevented from blocking the stirring bucket 12. The DC motor 16 is electrically connected with the controller 23.

[0026] As shown in Figures 1-5 The electric heating wire 4 is further included. The electric heating wire 4 is arranged between the inner wall of the heat-conducting cylinder 3 and the outer wall of the drying box 2. The electric heating wire 4 is electrically connected with the controller 23.

[0027] As shown in Figure 2 The electric push rod 14 and the baffle 15 are further included. The baffle 15 is slidably connected to the inner lower part of the stirring bucket 12. The electric push rod 14 is arranged at the bottom rear side of the stirring bucket 12. The extension rod of the electric push rod 14 is connected with the top of the baffle 15. The electric push rod 14 is electrically connected with the controller 23.

[0028] As shown in Figure 4 And Figure 6 The sweeping plate 9 is further included. The outer wall of the rotating shaft 8 is fixedly connected with a plurality of sweeping plates 9. Each sweeping plate 9 is located at the upper part of each sweeping disc 10. The sweeping plate 9 can stir the lithium carbonate solution entering the filter box 7.

[0029] As shown in Figure 1 And Figure 7 The cylinder body 19, the servo motor 20, the spiral conveying paddle 21 and the fixing frame 22 are further included. The cylinder body 19 is fixedly connected to the bottom of the discharge hopper 18. The fixing frame 22 is fixedly connected to the bottom of the cylinder body 19. The servo motor 20 is arranged on the left side of the cylinder body 19 through bolts. The output shaft of the servo motor 20 is rotatably connected with the spiral conveying paddle 21. The spiral conveying paddle 21 is located inside the cylinder body 19. The servo motor 20 is electrically connected with the controller 23.

[0030] Before using the device, the device should be placed on the horizontal ground, the operator should first start the DC motor 16 through the controller 23, then connect the water pipe to the first feeding pipe 13, then pass the lithium sulfate solution and sodium carbonate solution from the first feeding pipe 13, the lithium sulfate solution is mostly salt lake brine or ore leaching solution, after the reaction is completed, open the liquid outlet pipe 11 on the back side of the stirring pot 12, discharge the upper clear liquid after the reaction is completed, the bottom is the remaining lithium carbonate slurry after the reaction is completed, the operator starts the DC motor 16 through the controller 23, the DC motor 16 drives the stirring rod 17 to rotate after starting, to prevent the lithium sulfate slurry from blocking the stirring pot 12, then start the electric push rod 14 through the controller 23, and then drive the baffle 15 to move backward, so that the stirring pot 12 is completely communicated with the filter box 7, the lithium carbonate slurry after stirring can enter the filter box 7, then the power source needs to be connected on the rotating shaft 8, the rotating shaft 8 is driven to rotate by the power source, and a plurality of sweeping plates 9 are driven to rotate, the lithium carbonate solution entering the filter box 7 and completing the reaction is stirred, the lithium carbonate slurry after filtering flows through the first screen 6, and the large particle impurities are preliminarily filtered, and the relatively pure lithium carbonate solution enters the second screen through the first screen 6, since the inner wall of the heat conducting cylinder 3 is fixedly connected with a plurality of inclined second screens 5, the filtering area of the lithium carbonate slurry can be increased, so that the lithium carbonate slurry is filtered again, at the same time, the operator should start the electric heating wire 4 through the controller 23 to dry the lithium carbonate slurry after filtering, the electric heating wire 4 is heated through the controller 23, and the excess water in the lithium carbonate solution can be evaporated after the electric heating wire 4 is heated, so that high-purity lithium carbonate solid is obtained, when the lithium carbonate slurry in the heat conducting cylinder 3 is completely changed into lithium carbonate solid powder, the operator can start the servo motor 20 through the controller 23, and then the spiral conveying paddle 21 in the cylinder body 19 starts to work, so that the lithium carbonate solid powder in the heat conducting cylinder 3 can be conveyed to the next process.

[0031] Although the present application has been described with reference to the example embodiments, it is to be understood that the application is not limited to the disclosed example embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all variations and equivalents.

Claims

1. A multi-pass lithium carbonate settling extraction apparatus, characterized by: The utility model relates to a kind of drying machine, including support frame (1), drying cabinet (2), heat conduction cylinder (3), second screen (5), first screen (6), filter box (7), rotating shaft (8), sweeping plate (10), discharge hopper (18) and controller (23), support frame (1) inner wall is fixedly connected with drying cabinet (2), drying cabinet (2) inner wall is equipped with heat conduction cylinder (3), heat conduction cylinder (3) inner wall is fixedly connected with several second screen (5) of being inclined, drying cabinet (2) top is fixedly connected with first screen (6), and first screen (6) top is fixedly connected with filter box (7), and filter box (7) top inner wall is rotatably connected with rotating shaft (8), and filter box (7) inner wall is fixedly connected with several sweeping plate (10), and rotating shaft (8) is rotatably connected with sweeping plate (10), each sweeping plate (10) is equipped with several openings, and drying cabinet (2) bottom is fixedly connected with discharge hopper (18), and support frame (1) outer wall is fixedly connected with controller (23) on the side.

2. A multi-pass lithium carbonate settling extraction apparatus as defined in claim 1, characterized by: It further includes a stirring bucket (12), a first feeding pipe (13), a DC motor (16) and a stirring rod (17), the filter box (7) top rear side is fixedly connected with the stirring bucket (12), the stirring bucket (12) top is fixedly connected with the first feeding pipe (13), and the stirring bucket (12) top is connected and communicated with the first feeding pipe (13), the stirring bucket (12) rear side is connected and communicated with the liquid outlet pipe (11), the stirring bucket (12) top is fixedly connected with the DC motor (16), the DC motor (16) output shaft passes through the stirring bucket (12) top and is fixedly connected with the stirring rod (17), and the DC motor (16) is electrically connected with the controller (23).

3. A multi-pass lithium carbonate settling extraction apparatus as defined in claim 2, characterized by: It further includes an electric heating wire (4), and the electric heating wire (4) is arranged between the inner wall of the heat conduction cylinder (3) and the outer wall of the drying cabinet (2), and the electric heating wire (4) is electrically connected with the controller (23).

4. A multi-pass lithium carbonate settling extraction apparatus as defined in claim 3, characterized by: It further includes an electric push rod (14) and a baffle (15), the stirring bucket (12) inner lower portion is slidably connected with the baffle (15), and the stirring bucket (12) bottom rear side is provided with the electric push rod (14), the electric push rod (14) telescopic rod is connected with the baffle (15) top, and the electric push rod (14) is electrically connected with the controller (23).

5. A multi-pass lithium carbonate settling extraction apparatus as defined in claim 4, wherein: It further includes a sweeping plate (9), and the rotating shaft (8) outer wall is fixedly connected with a plurality of sweeping plates (9), and each sweeping plate (9) is located on the upper portion of each sweeping plate (10).

6. A multi-pass lithium carbonate settling extraction apparatus as claimed in claim 5, characterised in that: It further includes a cylinder body (19), a servo motor (20), a spiral conveying paddle (21) and a fixing frame (22), the discharge hopper (18) bottom is fixedly connected with the cylinder body (19), the cylinder body (19) bottom is fixedly connected with the fixing frame (22), the cylinder body (19) left side is provided with the servo motor (20), the servo motor (20) output shaft is rotatably connected with the spiral conveying paddle (21), and the spiral conveying paddle (21) is located in the cylinder body (19), and the servo motor (20) is electrically connected with the controller (23).

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